--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.8
--- /dev/null
+2004-03-19 Bob Halley <halley@dnspython.org>
+
+ * Added support for new DNSSEC types RRSIG, NSEC, and DNSKEY.
+
+2004-01-16 Bob Halley <halley@dnspython.org>
+
+ * dns/query.py (_connect): Windows returns EWOULDBLOCK instead
+ of EINPROGRESS when trying to connect a nonblocking socket.
+
+2003-11-13 Bob Halley <halley@dnspython.org>
+
+ * dns/rdtypes/ANY/LOC.py (LOC.to_wire): We encoded and decoded LOC
+ incorrectly, since we were interpreting the values of altitiude,
+ size, hprec, and vprec in meters instead of centimeters.
+
+ * dns/rdtypes/IN/WKS.py (WKS.from_wire): The WKS protocol value is
+ encoded with just one octet, not two!
+
+2003-11-09 Bob Halley <halley@dnspython.org>
+
+ * dns/resolver.py (Cache.maybe_clean): The cleaner deleted items
+ from the dictionary while iterating it, causing a RuntimeError
+ to be raised. Thanks to Mark R. Levinson for the bug report,
+ regression test, and fix.
+
+2003-11-07 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.2.0 released)
+
+2003-11-03 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py (_MasterReader.read): The saved_state now includes
+ the default TTL.
+
+2003-11-01 Bob Halley <halley@dnspython.org>
+
+ * dns/tokenizer.py (Tokenizer.get): The tokenizer didn't
+ handle escaped delimiters.
+
+2003-10-27 Bob Halley <halley@dnspython.org>
+
+ * dns/resolver.py (Resolver.read_resolv_conf): If no nameservers
+ are configured in /etc/resolv.conf, the default nameserver
+ list should be ['127.0.0.1'].
+
+2003-09-08 Bob Halley <halley@dnspython.org>
+
+ * dns/resolver.py (Resolver._config_win32_fromkey): We didn't
+ catch WindowsError, which can happen if a key is not defined
+ in the registry.
+
+2003-09-06 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.2.0b1 released)
+
+2003-09-05 Bob Halley <halley@dnspython.org>
+
+ * dns/query.py: Timeout support has been overhauled to provide
+ timeouts under Python 2.2 as well as 2.3, and to provide more
+ accurate expiration.
+
+2003-08-30 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: dns.exception.SyntaxError is raised for unknown
+ master file directives.
+
+2003-08-28 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: $INCLUDE processing is now enabled/disabled using
+ the allow_include parameter. The default is to process $INCLUDE
+ for from_file(), and to disallow $INCLUDE for from_text(). The
+ master reader now calls zone.check_origin_node() by default after
+ the zone has been read. find_rdataset() called get_node() instead
+ of find_node(), which result in an incorrect exception. The
+ relativization state of a zone is now remembered and applied
+ consistently when looking up names. from_xfr() now supports
+ relativization like the _MasterReader.
+
+2003-08-22 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: The _MasterReader now understands $INCLUDE.
+
+2003-08-12 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: The _MasterReader now specifies the file and line
+ number when a syntax error occurs. The BIND 8 TTL format is now
+ understood when loading a zone, though it will never be emitted.
+ The from_file() function didn't pass the zone_factory parameter
+ to from_text().
+
+2003-08-10 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.1.0 released)
+
+2003-08-07 Bob Halley <halley@dnspython.org>
+
+ * dns/update.py (Update._add): A typo meant that _add would
+ fail if the thing being added was an Rdata object (as
+ opposed to an Rdataset or the textual form of an Rdata).
+
+2003-08-05 Bob Halley <halley@dnspython.org>
+
+ * dns/set.py: the simple Set class has been moved to its
+ own module, and augmented to support more set operations.
+
+2003-08-04 Bob Halley <halley@dnspython.org>
+
+ * Node and all rdata types have been "slotted". This speeds
+ things up a little and reduces memory usage noticeably.
+
+2003-08-02 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.1.0c1 released)
+
+2003-08-02 Bob Halley <halley@dnspython.org>
+
+ * dns/rdataset.py: SimpleSets now support more set options.
+
+ * dns/message.py: Added the get_rrset() method. from_file() now
+ allows Unicode filenames and turns on universal newline support if
+ it opens the file itself.
+
+ * dns/node.py: Added the delete_rdataset() and replace_rdataset()
+ methods.
+
+ * dns/zone.py: Added the delete_node(), delete_rdataset(), and
+ replace_rdataset() methods. from_file() now allows Unicode
+ filenames and turns on universal newline support if it opens the
+ file itself. Added a to_file() method.
+
+2003-08-01 Bob Halley <halley@dnspython.org>
+
+ * dns/opcode.py: Opcode from/to text converters now understand
+ numeric opcodes. The to_text() method will return a numeric opcode
+ string if it doesn't know a text name for the opcode.
+
+ * dns/message.py: Added set_rcode(). Fixed code where ednsflags
+ wasn't treated as a long.
+
+ * dns/rcode.py: ednsflags wasn't treated as a long. Rcode from/to
+ text converters now understand numeric rcodes. The to_text()
+ method will return a numeric rcode string if it doesn't know
+ a text name for the rcode.
+
+ * examples/reverse.py: Added a new example program that builds a
+ reverse (address-to-name) mapping table from the name-to-address
+ mapping specified by A RRs in zone files.
+
+ * dns/node.py: Added get_rdataset() method.
+
+ * dns/zone.py: Added get_rdataset() and get_rrset() methods. Added
+ iterate_rdatas().
+
+2003-07-31 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: Added the iterate_rdatasets() method which returns
+ a generator which yields (name, rdataset) tuples for all the
+ rdatasets in the zone matching the specified rdatatype.
+
+2003-07-30 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.1.0b2 released)
+
+2003-07-30 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py: Added find_rrset() and find_rdataset() convenience
+ methods. They let you retrieve rdata with the specified name
+ and type in one call.
+
+ * dns/node.py: Nodes no longer have names; owner names are
+ associated with nodes in the Zone object's nodes dictionary.
+
+ * dns/zone.py: Zone objects now implement more of the standard
+ mapping interface. __iter__ has been changed to iterate the keys
+ rather than values to match the standard mapping interface's
+ behavior.
+
+2003-07-20 Bob Halley <halley@dnspython.org>
+
+ * dns/ipv6.py (inet_ntoa): Handle embedded IPv4 addresses.
+
+2003-07-19 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.1.0b1 released)
+
+2003-07-18 Bob Halley <halley@dnspython.org>
+
+ * dns/tsig.py: The TSIG validation of TCP streams where not
+ every message is signed now works correctly.
+
+ * dns/zone.py: Zones can now be compared for equality and
+ inequality. If the other object in the comparison is also
+ a zone, then "the right thing" happens; i.e. the zones are
+ equal iff.: they have the same rdclass, origin, and nodes.
+
+2003-07-17 Bob Halley <halley@dnspython.org>
+
+ * dns/message.py (Message.use_tsig): The method now allows for
+ greater control over the various fields in the generated signature
+ (e.g. fudge).
+ (_WireReader._get_section): UnknownTSIGKey is now raised if an
+ unknown key is encountered, or if a signed message has no keyring.
+
+2003-07-16 Bob Halley <halley@dnspython.org>
+
+ * dns/tokenizer.py (Tokenizer._get_char): get_char and unget_char
+ have been renamed to _get_char and _unget_char since they are not
+ useful to clients of the tokenizer.
+
+2003-07-15 Bob Halley <halley@dnspython.org>
+
+ * dns/zone.py (_MasterReader._rr_line): owner names were being
+ unconditionally relativized; it makes much more sense for them
+ to be relativized according to the relativization setting of
+ the reader.
+
+2003-07-12 Bob Halley <halley@dnspython.org>
+
+ * dns/resolver.py (Resolver.read_resolv_conf): The resolv.conf
+ parser did not allow blank / whitespace-only lines, nor did it
+ allow comments. Both are now supported.
+
+2003-07-11 Bob Halley <halley@dnspython.org>
+
+ * dns/name.py (Name.to_digestable): to_digestable() now
+ requires an origin to be specified if the name is relative.
+ It will raise NeedAbsoluteNameOrOrigin if the name is
+ relative and there is either no origin or the origin is
+ itself relative.
+ (Name.split): returned the wrong answer if depth was 0 or depth
+ was the length of the name. split() now does bounds checking
+ on depth, and raises ValueError if depth < 0 or depth > the length
+ of the name.
+
+2003-07-10 Bob Halley <halley@dnspython.org>
+
+ * dns/ipv6.py (inet_ntoa): The routine now minimizes its output
+ strings. E.g. the IPv6 address
+ "0000:0000:0000:0000:0000:0000:0000:0001" is minimized to "::1".
+ We do not, however, make any effort to display embedded IPv4
+ addresses in the dot-quad notation.
+
+2003-07-09 Bob Halley <halley@dnspython.org>
+
+ * dns/inet.py: We now supply our own AF_INET and AF_INET6
+ constants since AF_INET6 may not always be available. If the
+ socket module has AF_INET6, we will use it. If not, we will
+ use our own value for the constant.
+
+ * dns/query.py: the functions now take an optional af argument
+ specifying the address family to use when creating the socket.
+
+ * dns/rdatatype.py (is_metatype): a typo caused the function
+ return true only for type OPT.
+
+ * dns/message.py: message section list elements are now RRsets
+ instead of Nodes. This API change makes processing messages
+ easier for many applications.
+
+2003-07-07 Bob Halley <halley@dnspython.org>
+
+ * dns/rrset.py: added. An RRset is a named rdataset.
+
+ * dns/rdataset.py (Rdataset.__eq__): rdatasets may now be compared
+ for equality and inequality with other objects. Rdataset instance
+ variables are now slotted.
+
+ * dns/message.py: The wire format and text format readers are now
+ classes. Variables related to reader state have been moved out
+ of the message class.
+
+2003-07-06 Bob Halley <halley@dnspython.org>
+
+ * dns/name.py (from_text): '@' was not interpreted as the empty
+ name.
+
+ * dns/zone.py: the master file reader derelativized names in rdata
+ relative to the zone's origin, not relative to the current origin.
+ The reader now deals with relativization in two steps. The rdata
+ is read and derelativized using the current origin. The rdata's
+ relativity is then chosen using the zone origin and the relativize
+ boolean. Here's an example.
+
+ $ORIGIN foo.example.
+ $TTL 300
+ bar MX 0 blaz
+
+ If the zone origin is example., and relativization is on, then
+ This fragment will become:
+
+ bar.foo.example. 300 IN MX 0 blaz.foo.example.
+
+ after the first step (derelativization to current origin), and
+
+ bar.foo 300 IN MX 0 blaz.foo
+
+ after the second step (relativiation to zone origin).
+
+ * dns/namedict.py: added.
+
+ * dns/zone.py: The master file reader has been made into its
+ own class. Reader-related instance variables have been moved
+ form the zone class into the reader class.
+
+ * dns/zone.py: Add node_factory class attribute. An application
+ can now subclass Zone and Node and have a zone whose nodes are of
+ the subclassed Node type. The from_text(), from_file(), and
+ from_xfr() algorithms now take an optional zone_factory argument.
+ This allows the algorithms to be used to create zones whose class
+ is a subclass of Zone.
+
+
+2003-07-04 Bob Halley <halley@dnspython.org>
+
+ * dns/renderer.py: added new wire format rendering module and
+ converted message.py to use it. Applications which want
+ fine-grained control over the conversion to wire format may call
+ the renderer directy, instead of having it called on their behalf
+ by the message code.
+
+2003-07-02 Bob Halley <halley@dnspython.org>
+
+ * dns/name.py (_validate_labels): The NameTooLong test was
+ incorrect.
+
+ * dns/message.py (Message.to_wire): dns.exception.TooBig is
+ now raised if the wire encoding exceeds the specified
+ maximum size.
+
+2003-07-01 Bob Halley <halley@dnspython.org>
+
+ * dns/message.py: EDNS encoding was broken. from_text()
+ didn't parse rcodes, flags, or eflags correctly. Comparing
+ messages with other types of objects didn't work.
+
+2003-06-30 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0 released)
+
+2003-06-30 Bob Halley <halley@dnspython.org>
+
+ * dns/rdata.py: Rdatas now implement rich comparisons instead of
+ __cmp__.
+
+ * dns/name.py: Names now implement rich comparisons instead of
+ __cmp__.
+
+ * dns/inet.py (inet_ntop): Always use our code, since the code
+ in the socket module doesn't support AF_INET6 conversions if
+ IPv6 sockets are not available on the system.
+
+ * dns/resolver.py (Answer.__init__): A dangling CNAME chain was
+ not raising NoAnswer.
+
+ * Added a simple resolver Cache class.
+
+ * Added an expiration attribute to answer instances.
+
+2003-06-24 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0b3 released)
+
+2003-06-24 Bob Halley <halley@dnspython.org>
+
+ * Renamed module "DNS" to "dns" to avoid conflicting with
+ PyDNS.
+
+2003-06-23 Bob Halley <halley@dnspython.org>
+
+ * The from_text() relativization controls now work the same way as
+ the to_text() controls.
+
+ * DNS/rdata.py: The parsing of generic rdata was broken.
+
+2003-06-21 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0b2 released)
+
+2003-06-21 Bob Halley <halley@dnspython.org>
+
+ * The Python 2.2 socket.inet_aton() doesn't seem to like
+ '255.255.255.255'. We work around this.
+
+ * Fixed bugs in rdata to_wire() and from_wire() routines of a few
+ types. These bugs were discovered by running the tests/zone.py
+ Torture1 test.
+
+ * Added implementation of type APL.
+
+2003-06-20 Bob Halley <halley@dnspython.org>
+
+ * DNS/rdtypes/IN/AAAA.py: Use our own versions of inet_ntop and
+ inet_pton if the socket module doesn't provide them for us.
+
+ * The resolver now does a better job handling exceptions. In
+ particular, it no longer eats all exceptions; rather it handles
+ those exceptions it understands, and leaves the rest uncaught.
+
+ * Exceptions have been pulled into their own module. Almost all
+ exceptions raised by the code are now subclasses of
+ DNS.exception.DNSException. All form errors are subclasses of
+ DNS.exception.FormError (which is itself a subclass of
+ DNS.exception.DNSException).
+
+2003-06-19 Bob Halley <halley@dnspython.org>
+
+ * Added implementations of types DS, NXT, SIG, and WKS.
+
+ * __cmp__ for type A and AAAA could produce incorrect results.
+
+2003-06-18 Bob Halley <halley@dnspython.org>
+
+ * Started test suites for zone.py and tokenizer.py.
+
+ * Added implementation of type KEY.
+
+ * DNS/rdata.py(_base64ify): \n could be emitted erroneously.
+
+ * DNS/rdtypes/ANY/SOA.py (SOA.from_text): The SOA RNAME field could
+ be set to the value of MNAME in common cases.
+
+ * DNS/rdtypes/ANY/X25.py: __init__ was broken.
+
+ * DNS/zone.py (from_text): $TTL handling erroneously caused the
+ next line to be eaten.
+
+ * DNS/tokenizer.py (Tokenizer.get): parsing was broken for empty
+ quoted strings. Quoted strings didn't handle \ddd escapes. Such
+ escapes are appear not to comply with RFC 1035, but BIND allows
+ them and they seem useful, so we allow them too.
+
+ * DNS/rdtypes/ANY/ISDN.py (ISDN.from_text): parsing was
+ broken for ISDN RRs without subaddresses.
+
+ * DNS/zone.py (from_file): from_file() didn't work because
+ some required parameters were not passed to from_text().
+
+2003-06-17 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0b1 released)
+
+2003-06-17 Bob Halley <halley@dnspython.org>
+
+ * Added implementation of type PX.
+
+2003-06-16 Bob Halley <halley@dnspython.org>
+
+ * Added implementation of types CERT, GPOS, LOC, NSAP, NSAP-PTR.
+
+ * DNS/rdatatype.py (_by_value): A cut-and-paste error had broken
+ NSAP and NSAP-PTR.
+
+2003-06-12 Bob Halley <halley@dnspython.org>
+
+ * Created a tests directory and started adding tests.
+
+ * Added "and its documentation" to the permission grant in the
+ license.
+
+2003-06-12 Bob Halley <halley@dnspython.org>
+
+ * DNS/name.py (Name.is_wild): is_wild() erroneously raised IndexError
+ if the name was empty.
+
+2003-06-10 Bob Halley <halley@dnspython.org>
+
+ * Added implementations of types AFSDB, X25, and ISDN.
+
+ * The documentation associated with the various rdata types has been
+ improved. In particular, instance variables are now described.
+
+2003-06-09 Bob Halley <halley@dnspython.org>
+
+ * Added implementations of types HINFO, RP, and RT.
+
+ * DNS/message.py (make_query): Document that make_query() sets
+ flags to DNS.flags.RD, and chooses a random query id.
+
+2003-06-05 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0a2 released)
+
+2003-06-05 Bob Halley <halley@dnspython.org>
+
+ * DNS/node.py: removed __getitem__ and __setitem__, since
+ they are not used by the codebase and were not useful in
+ general either.
+
+ * DNS/message.py (from_file): from_file() now allows a
+ filename to be specified instead of a file object.
+
+ * DNS/rdataset.py: The is_compatible() method of the
+ DNS.rdataset.Rdataset class was deleted.
+
+2003-06-04 Bob Halley <halley@dnspython.org>
+
+ * DNS/name.py (class Name): Names are now immutable.
+
+ * DNS/name.py: the is_comparable() method has been removed, since
+ names are always comparable.
+
+ * DNS/resolver.py (Resolver.query): A query could run for up
+ to the lifetime + the timeout. This has been corrected and the
+ query will now only run up to the lifetime.
+
+2003-06-03 Bob Halley <halley@dnspython.org>
+
+ * DNS/resolver.py: removed the 'new' function since it is not the
+ style of the library to have such a function. Call
+ DNS.resolver.Resolver() to make a new resolver.
+
+2003-06-03 Bob Halley <halley@dnspython.org>
+
+ * DNS/resolver.py (Resolver._config_win32_fromkey): The DhcpServer
+ list is space separated, not comma separated.
+
+2003-06-03 Bob Halley <halley@dnspython.org>
+
+ * DNS/update.py: Added an update module to make generating updates
+ easier.
+
+2003-06-03 Bob Halley <halley@dnspython.org>
+
+ * Commas were missing in some of the __all__ entries in various
+ __init__.py files.
+
+2003-05-30 Bob Halley <halley@dnspython.org>
+
+ * (Version 1.0.0a1 released)
--- /dev/null
+Copyright (C) 2001-2003 Nominum, Inc.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose with or without fee is hereby granted,
+provided that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
--- /dev/null
+include LICENSE ChangeLog TODO
+recursive-include examples *.txt *.py
+recursive-include tests *.txt *.py Makefile *.good example
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: Makefile,v 1.16 2004/03/19 00:17:27 halley Exp $
+
+PYTHON=python
+
+all:
+ ${PYTHON} ./setup.py build
+
+install:
+ ${PYTHON} ./setup.py install
+
+clean:
+ ${PYTHON} ./setup.py clean --all
+ find . -name '*.pyc' -exec rm {} \;
+ find . -name '*.pyo' -exec rm {} \;
+ rm -f TAGS
+
+distclean: clean docclean
+ rm -rf build dist
+ rm -f MANIFEST
+
+doc:
+ epydoc -n dnspython -u http://www.dnspython.org \
+ dns/*.py dns/rdtypes/*.py dns/rdtypes/ANY/*.py \
+ dns/rdtypes/IN/*.py
+
+dockits: doc
+ mv html dnspython-html
+ tar czf html.tar.gz dnspython-html
+ zip -r html.zip dnspython-html
+ mv dnspython-html html
+
+docclean:
+ rm -rf html.tar.gz html.zip html
+
+kits:
+ ${PYTHON} ./setup.py sdist --formats=gztar,zip
+ ${PYTHON} ./setup.py bdist_rpm
+ ${PYTHON} ./setup.py bdist_wininst
+
+tags:
+ find . -name '*.py' -print | etags -
--- /dev/null
+dnspython
+
+INTRODUCTION
+
+dnspython is a DNS toolkit for Python. It supports almost all record
+types. It can be used for queries, zone transfers, and dynamic
+updates. It supports TSIG authenticated messages and EDNS0.
+
+dnspython provides both high and low level access to DNS. The high
+level classes perform queries for data of a given name, type, and
+class, and return an answer set. The low level classes allow direct
+manipulation of DNS zones, messages, names, and records.
+
+To see a few of the ways dnspython can be used, look in the examples/
+directory.
+
+dnspython originated at Nominum where it was developed to facilitate
+the testing of DNS software. Nominum has generously allowed it to be
+open sourced under a BSD-style license, and helps support its future
+development by continuing to employ the author :).
+
+
+ABOUT THIS RELEASE
+
+This is dnspython 1.3.0.
+
+New since 1.2.0:
+
+ Added support for new DNSSEC types RRSIG, NSEC, and DNSKEY.
+
+This release fixes all known bugs.
+
+See the ChangeLog file for more detailed information on changes since
+the prior release.
+
+
+REQUIREMENTS
+
+Python 2.2 or later.
+
+
+INSTALLATION
+
+To build and install dnspython, type
+
+ python setup.py install
+
+
+HOME PAGE
+
+For the latest in releases, documentation, and information, visit the
+dnspython home page at
+
+ http://www.dnspython.org/
+
+
+
+DOCUMENTATION
+
+Documentation is sparse at the moment. Use pydoc, or read the HTML
+documentation at the dnspython home page, or download the HTML
+documentation.
+
+
+BUG REPORTS
+
+Bug reports may be sent to bugs@dnspython.org
+
+
+MAILING LISTS
+
+A number of mailing lists are available. Visit the dnspython home
+page to subscribe or unsubscribe.
--- /dev/null
+Tutorial documentation
+
+More examples
+
+It would be nice to have a tokenizer that used regular expressions
+because it would be faster.
+
+Teach the resolver about DNAME (right now it relies on the server adding
+synthesized CNAMEs)
+
+Add TKEY support.
+
+TSIG works, but needs cleaning up -- probably better encapsulation of
+TSIG state to make things much simpler and easier to use.
+
+Pickling support.
+
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.7
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.8
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.9
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.10
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.11
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.12
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.13
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.14
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.15
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.16
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.17
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.18
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.19
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.20
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.21
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.22
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.23
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.24
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.25
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.26
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.27
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.28
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: __init__.py,v 1.17 2004/03/19 00:17:27 halley Exp $
+
+"""dnspython DNS toolkit"""
+
+__all__ = [
+ 'dnssec',
+ 'exception',
+ 'flags',
+ 'inet',
+ 'ipv4',
+ 'ipv6',
+ 'message',
+ 'name',
+ 'namedict',
+ 'node',
+ 'opcode',
+ 'query',
+ 'rcode',
+ 'rdata',
+ 'rdataclass',
+ 'rdataset',
+ 'rdatatype',
+ 'renderer',
+ 'resolver',
+ 'rrset',
+ 'set',
+ 'tokenizer',
+ 'tsig',
+ 'tsigkeyring',
+ 'ttl',
+ 'rdtypes',
+ 'update',
+ 'version',
+ 'zone',
+]
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: dnssec.py,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+"""Common DNSSEC-related functions and constants."""
+
+RSAMD5 = 1
+DH = 2
+DSA = 3
+ECC = 4
+INDIRECT = 252
+PRIVATEDNS = 253
+PRIVATEOID = 254
+
+_algorithm_by_text = {
+ 'RSAMD5' : RSAMD5,
+ 'DH' : DH,
+ 'DSA' : DSA,
+ 'ECC' : ECC,
+ 'INDIRECT' : INDIRECT,
+ 'PRIVATEDNS' : PRIVATEDNS,
+ 'PRIVATEOID' : PRIVATEOID,
+ }
+
+# We construct the inverse mapping programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mapping not to be true inverse.
+
+_algorithm_by_value = dict([(y, x) for x, y in _algorithm_by_text.iteritems()])
+
+class UnknownAlgorithm(Exception):
+ """Raised if an algorithm is unknown."""
+ pass
+
+def algorithm_from_text(text):
+ """Convert text into a DNSSEC algorithm value
+ @rtype: int"""
+
+ value = _algorithm_by_text.get(text.upper())
+ if value is None:
+ value = int(text)
+ return value
+
+def algorithm_to_text(value):
+ """Convert a DNSSEC algorithm value to text
+ @rtype: string"""
+
+ text = _algorithm_by_value.get(value)
+ if text is None:
+ text = str(value)
+ return text
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: exception.py,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+"""Common DNS Exceptions."""
+
+class DNSException(Exception):
+ """Abstract base class shared by all dnspython exceptions."""
+ pass
+
+class FormError(DNSException):
+ """DNS message is malformed."""
+ pass
+
+class SyntaxError(DNSException):
+ """Text input is malformed."""
+ pass
+
+class UnexpectedEnd(SyntaxError):
+ """Raised if text input ends unexpectedly."""
+ pass
+
+class TooBig(DNSException):
+ """The message is too big."""
+ pass
+
+class Timeout(DNSException):
+ """The operation timed out."""
+ pass
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: flags.py,v 1.9 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Message Flags."""
+
+# Standard DNS flags
+
+QR = 0x8000
+AA = 0x0400
+TC = 0x0200
+RD = 0x0100
+RA = 0x0080
+AD = 0x0020
+CD = 0x0010
+
+# EDNS flags
+
+DO = 0x8000
+
+_by_text = {
+ 'QR' : QR,
+ 'AA' : AA,
+ 'TC' : TC,
+ 'RD' : RD,
+ 'RA' : RA,
+ 'AD' : AD,
+ 'CD' : CD
+}
+
+_edns_by_text = {
+ 'DO' : DO
+}
+
+
+# We construct the inverse mappings programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mappings not to be true inverses.
+
+_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
+
+_edns_by_value = dict([(y, x) for x, y in _edns_by_text.iteritems()])
+
+def _order_flags(table):
+ order = list(table.iteritems())
+ order.sort()
+ order.reverse()
+ return order
+
+_flags_order = _order_flags(_by_value)
+
+_edns_flags_order = _order_flags(_edns_by_value)
+
+def _from_text(text, table):
+ flags = 0
+ tokens = text.split()
+ for t in tokens:
+ flags = flags | table[t.upper()]
+ return flags
+
+def _to_text(flags, table, order):
+ text_flags = []
+ for k, v in order:
+ if flags & k != 0:
+ text_flags.append(v)
+ return ' '.join(text_flags)
+
+def from_text(text):
+ """Convert a space-separated list of flag text values into a flags
+ value.
+ @rtype: int"""
+
+ return _from_text(text, _by_text)
+
+def to_text(flags):
+ """Convert a flags value into a space-separated list of flag text
+ values.
+ @rtype: string"""
+
+ return _to_text(flags, _by_value, _flags_order)
+
+
+def edns_from_text(text):
+ """Convert a space-separated list of EDNS flag text values into a EDNS
+ flags value.
+ @rtype: int"""
+
+ return _from_text(text, _edns_by_text)
+
+def edns_to_text(flags):
+ """Convert an EDNS flags value into a space-separated list of EDNS flag
+ text values.
+ @rtype: string"""
+
+ return _to_text(flags, _edns_by_value, _edns_flags_order)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: inet.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+"""Generic Internet address helper functions."""
+
+import socket
+
+import dns.ipv4
+import dns.ipv6
+
+
+# We assume that AF_INET is always defined.
+
+AF_INET = socket.AF_INET
+
+# AF_INET6 might not be defined in the socket module, but we need it.
+# We'll try to use the socket module's value, and if it doesn't work,
+# we'll use our own value.
+
+try:
+ AF_INET6 = socket.AF_INET6
+except AttributeError:
+ AF_INET6 = 9999
+
+def inet_pton(family, text):
+ """Convert the textual form of a network address into its binary form.
+
+ @param family: the address family
+ @type family: int
+ @param text: the textual address
+ @type text: string
+ @raises NotImplementedError: the address family specified is not
+ implemented.
+ @rtype: string
+ """
+
+ if family == AF_INET:
+ return dns.ipv4.inet_aton(text)
+ elif family == AF_INET6:
+ return dns.ipv6.inet_aton(text)
+ else:
+ raise NotImplementedError
+
+def inet_ntop(family, address):
+ """Convert the binary form of a network address into its textual form.
+
+ @param family: the address family
+ @type family: int
+ @param address: the binary address
+ @type address: string
+ @raises NotImplementedError: the address family specified is not
+ implemented.
+ @rtype: string
+ """
+ if family == AF_INET:
+ return dns.ipv4.inet_ntoa(address)
+ elif family == AF_INET6:
+ return dns.ipv6.inet_ntoa(address)
+ else:
+ raise NotImplementedError
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ipv4.py,v 1.3 2004/03/19 00:17:27 halley Exp $
+
+"""IPv4 helper functions."""
+
+import socket
+import sys
+
+if sys.hexversion < 0x02030000 or sys.platform == 'win32':
+ #
+ # Some versions of Python 2.2 have an inet_aton which rejects
+ # the valid IP address '255.255.255.255'. It appears this
+ # problem is still present on the Win32 platform even in 2.3.
+ # We'll work around the problem.
+ #
+ def inet_aton(text):
+ if text == '255.255.255.255':
+ return '\xff' * 4
+ else:
+ return socket.inet_aton(text)
+else:
+ inet_aton = socket.inet_aton
+
+inet_ntoa = socket.inet_ntoa
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ipv6.py,v 1.10 2004/03/19 00:17:27 halley Exp $
+
+"""IPv6 helper functions."""
+
+import re
+
+import dns.exception
+import dns.ipv4
+
+_leading_zero = re.compile(r'0+([0-9a-f]+)')
+
+def inet_ntoa(address):
+ """Convert a network format IPv6 address into text.
+
+ @param address: the binary address
+ @type address: string
+ @rtype: string
+ @raises ValueError: the address isn't 16 bytes long
+ """
+
+ if len(address) != 16:
+ raise ValueError, "IPv6 addresses are 16 bytes long"
+ hex = address.encode('hex_codec')
+ chunks = []
+ i = 0
+ l = len(hex)
+ while i < l:
+ chunk = hex[i : i + 4]
+ # strip leading zeros. we do this with an re instead of
+ # with lstrip() because lstrip() didn't support chars until
+ # python 2.2.2
+ m = _leading_zero.match(chunk)
+ if not m is None:
+ chunk = m.group(1)
+ chunks.append(chunk)
+ i += 4
+ #
+ # Compress the longest subsequence of 0-value chunks to ::
+ #
+ best_start = 0
+ best_len = 0
+ last_was_zero = False
+ for i in xrange(8):
+ if chunks[i] != '0':
+ if last_was_zero:
+ end = i
+ current_len = end - start
+ if current_len > best_len:
+ best_start = start
+ best_len = current_len
+ last_was_zero = False
+ elif not last_was_zero:
+ start = i
+ last_was_zero = True
+ if last_was_zero:
+ end = 8
+ current_len = end - start
+ if current_len > best_len:
+ best_start = start
+ best_len = current_len
+ if best_len > 0:
+ if best_start == 0 and \
+ (best_len == 6 or
+ best_len == 5 and chunks[5] == 'ffff'):
+ # We have an embedded IPv4 address
+ if best_len == 6:
+ prefix = '::'
+ else:
+ prefix = '::ffff:'
+ hex = prefix + dns.ipv4.inet_ntoa(address[12:])
+ else:
+ hex = ':'.join(chunks[:best_start]) + '::' + \
+ ':'.join(chunks[best_start + best_len:])
+ else:
+ hex = ':'.join(chunks)
+ return hex
+
+_v4_ending = re.compile(r'(.*):(\d+)\.(\d+)\.(\d+)\.(\d+)$')
+_colon_colon_start = re.compile(r'::.*')
+_colon_colon_end = re.compile(r'.*::$')
+
+def inet_aton(text):
+ """Convert a text format IPv6 address into network format.
+
+ @param text: the textual address
+ @type text: string
+ @rtype: string
+ @raises dns.exception.SyntaxError: the text was not properly formatted
+ """
+
+ #
+ # Our aim here is not something fast; we just want something that works.
+ #
+
+ if text == '::':
+ text = '0::'
+ #
+ # Get rid of the icky dot-quad syntax if we have it.
+ #
+ m = _v4_ending.match(text)
+ if not m is None:
+ text = "%s:%04x:%04x" % (m.group(1),
+ int(m.group(2)) * 256 + int(m.group(3)),
+ int(m.group(4)) * 256 + int(m.group(5)))
+ #
+ # Try to turn '::<whatever>' into ':<whatever>'; if no match try to
+ # turn '<whatever>::' into '<whatever>:'
+ #
+ m = _colon_colon_start.match(text)
+ if not m is None:
+ text = text[1:]
+ else:
+ m = _colon_colon_end.match(text)
+ if not m is None:
+ text = text[:-1]
+ #
+ # Now canonicalize into 8 chunks of 4 hex digits each
+ #
+ chunks = text.split(':')
+ l = len(chunks)
+ if l > 8:
+ raise dns.exception.SyntaxError
+ seen_empty = False
+ canonical = []
+ for c in chunks:
+ if c == '':
+ if seen_empty:
+ raise dns.exception.SyntaxError
+ seen_empty = True
+ for i in xrange(0, 8 - l + 1):
+ canonical.append('0000')
+ else:
+ lc = len(c)
+ if lc > 4:
+ raise dns.exception.SyntaxError
+ if lc != 4:
+ c = ('0' * (4 - lc)) + c
+ canonical.append(c)
+ if l < 8 and not seen_empty:
+ raise dns.exception.SyntaxError
+ text = ''.join(canonical)
+
+ #
+ # Finally we can go to binary.
+ #
+ return text.decode('hex_codec')
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: message.py,v 1.35 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Messages"""
+
+import cStringIO
+import random
+import string
+import struct
+import sys
+import time
+
+import dns.exception
+import dns.flags
+import dns.name
+import dns.opcode
+import dns.rcode
+import dns.rdata
+import dns.rdataclass
+import dns.rdatatype
+import dns.rrset
+import dns.renderer
+import dns.tsig
+
+class ShortHeader(dns.exception.FormError):
+ """Raised if the DNS packet passed to from_wire() is too short."""
+ pass
+
+class TrailingJunk(dns.exception.FormError):
+ """Raised if the DNS packet passed to from_wire() has extra junk
+ at the end of it."""
+ pass
+
+class UnknownHeaderField(dns.exception.DNSException):
+ """Raised if a header field name is not recognized when converting from
+ text into a message."""
+ pass
+
+class BadEDNS(dns.exception.FormError):
+ """Raised if an OPT record occurs somewhere other than the start of
+ the additional data section."""
+ pass
+
+class BadTSIG(dns.exception.FormError):
+ """Raised if a TSIG record occurs somewhere other than the end of
+ the additional data section."""
+ pass
+
+class UnknownTSIGKey(dns.exception.DNSException):
+ """Raised if we got a TSIG but don't know the key."""
+ pass
+
+class Message(object):
+ """A DNS message.
+
+ @ivar id: The query id; the default is a randomly chosen id.
+ @type id: int
+ @ivar flags: The DNS flags of the message. @see: RFC 1035 for an
+ explanation of these flags.
+ @type flags: int
+ @ivar question: The question section.
+ @type question: list of dns.rrset.RRset objects
+ @ivar answer: The answer section.
+ @type answer: list of dns.rrset.RRset objects
+ @ivar authority: The authority section.
+ @type authority: list of dns.rrset.RRset objects
+ @ivar additional: The additional data section.
+ @type additional: list of dns.rrset.RRset objects
+ @ivar edns: The EDNS level to use. The default is -1, no Edns.
+ @type edns: int
+ @ivar ednsflags: The EDNS flags
+ @type ednsflags: long
+ @ivar payload: The EDNS payload size. The default is 0.
+ @type payload: int
+ @ivar keyring: The TSIG keyring to use. The default is None.
+ @type keyring: dict
+ @ivar keyname: The TSIG keyname to use. The default is None.
+ @type keyname: dns.name.Name object
+ @ivar request_mac: The TSIG MAC of the request message associated with
+ this message; used when validating TSIG signatures. @see: RFC 2845 for
+ more information on TSIG fields.
+ @type request_mac: string
+ @ivar fudge: TSIG time fudge; default is 300 seconds.
+ @type fudge: int
+ @ivar original_id: TSIG original id; defaults to the message's id
+ @type original_id: int
+ @ivar tsig_error: TSIG error code; default is 0.
+ @type tsig_error: int
+ @ivar other_data: TSIG other data.
+ @type other_data: string
+ @ivar mac: The TSIG MAC for this message.
+ @type mac: string
+ @ivar xfr: Is the message being used to contain the results of a DNS
+ zone transfer? The default is False.
+ @type xfr: bool
+ @ivar origin: The origin of the zone in messages which are used for
+ zone transfers or for DNS dynamic updates. The default is None.
+ @type origin: dns.name.Name object
+ @ivar tsig_ctx: The TSIG signature context associated with this
+ message. The default is None.
+ @type tsig_ctx: hmac.HMAC object
+ @ivar had_tsig: Did the message decoded from wire format have a TSIG
+ signature?
+ @type had_tsig: bool
+ @ivar multi: Is this message part of a multi-message sequence? The
+ default is false. This variable is used when validating TSIG signatures
+ on messages which are part of a zone transfer.
+ @type multi: bool
+ @ivar first: Is this message standalone, or the first of a multi
+ message sequence? This variable is used when validating TSIG signatures
+ on messages which are part of a zone transfer.
+ @type first: bool
+ """
+
+ def __init__(self, id=None):
+ if id is None:
+ self.id = random.randint(0, 65535)
+ else:
+ self.id = id
+ self.flags = 0
+ self.question = []
+ self.answer = []
+ self.authority = []
+ self.additional = []
+ self.edns = -1
+ self.ednsflags = 0
+ self.payload = 0
+ self.keyring = None
+ self.keyname = None
+ self.request_mac = ''
+ self.other_data = ''
+ self.tsig_error = 0
+ self.fudge = 300
+ self.original_id = self.id
+ self.mac = ''
+ self.xfr = False
+ self.origin = None
+ self.tsig_ctx = None
+ self.had_tsig = False
+ self.multi = False
+ self.first = True
+
+ def __repr__(self):
+ return '<DNS message, ID ' + `self.id` + '>'
+
+ def __str__(self):
+ return self.to_text()
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ """Convert the message to text.
+
+ The I{origin}, I{relativize}, and any other keyword
+ arguments are passed to the rrset to_wire() method.
+
+ @rtype: string
+ """
+
+ s = cStringIO.StringIO()
+ print >> s, 'id %d' % self.id
+ print >> s, 'opcode %s' % \
+ dns.opcode.to_text(dns.opcode.from_flags(self.flags))
+ rc = dns.rcode.from_flags(self.flags, self.ednsflags)
+ print >> s, 'rcode %s' % dns.rcode.to_text(rc)
+ print >> s, 'flags %s' % dns.flags.to_text(self.flags)
+ if self.edns >= 0:
+ print >> s, 'edns %s' % self.edns
+ if self.ednsflags != 0:
+ print >> s, 'eflags %s' % \
+ dns.flags.edns_to_text(self.ednsflags)
+ print >> s, 'payload', self.payload
+ is_update = dns.opcode.is_update(self.flags)
+ if is_update:
+ print >> s, ';ZONE'
+ else:
+ print >> s, ';QUESTION'
+ for rrset in self.question:
+ print >> s, rrset.to_text(origin, relativize, **kw)
+ if is_update:
+ print >> s, ';PREREQ'
+ else:
+ print >> s, ';ANSWER'
+ for rrset in self.answer:
+ print >> s, rrset.to_text(origin, relativize, **kw)
+ if is_update:
+ print >> s, ';UPDATE'
+ else:
+ print >> s, ';AUTHORITY'
+ for rrset in self.authority:
+ print >> s, rrset.to_text(origin, relativize, **kw)
+ print >> s, ';ADDITIONAL'
+ for rrset in self.additional:
+ print >> s, rrset.to_text(origin, relativize, **kw)
+ #
+ # We strip off the final \n so the caller can print the result without
+ # doing weird things to get around eccentricities in Python print
+ # formatting
+ #
+ return s.getvalue()[:-1]
+
+ def __eq__(self, other):
+ """Two messages are equal if they have the same content in the
+ header, question, answer, and authority sections.
+ @rtype: bool"""
+ if not isinstance(other, Message):
+ return False
+ if self.id != other.id:
+ return False
+ if self.flags != other.flags:
+ return False
+ for n in self.question:
+ if n not in other.question:
+ return False
+ for n in other.question:
+ if n not in self.question:
+ return False
+ for n in self.answer:
+ if n not in other.answer:
+ return False
+ for n in other.answer:
+ if n not in self.answer:
+ return False
+ for n in self.authority:
+ if n not in other.authority:
+ return False
+ for n in other.authority:
+ if n not in self.authority:
+ return False
+ return True
+
+ def __ne__(self, other):
+ """Are two messages not equal?
+ @rtype: bool"""
+ return not self.__eq__(other)
+
+ def is_response(self, other):
+ """Is other a response to self?
+ @rtype: bool"""
+ if other.flags & dns.flags.QR == 0 or \
+ self.id != other.id or \
+ dns.opcode.from_flags(self.flags) != \
+ dns.opcode.from_flags(other.flags):
+ return False
+ if dns.rcode.from_flags(other.flags, other.ednsflags) != \
+ dns.rcode.NOERROR:
+ return True
+ if dns.opcode.is_update(self.flags):
+ return True
+ for n in self.question:
+ if n not in other.question:
+ return False
+ for n in other.question:
+ if n not in self.question:
+ return False
+ return True
+
+ def find_rrset(self, section, name, rdclass, rdtype,
+ covers=dns.rdatatype.NONE, deleting=None, create=False,
+ force_unique=False):
+ """Find the RRset with the given attributes in the specified section.
+
+ @param section: the section of the message to look in, e.g.
+ self.answer.
+ @type section: list of dns.rrset.RRset objects
+ @param name: the name of the RRset
+ @type name: dns.name.Name object
+ @param rdclass: the class of the RRset
+ @type rdclass: int
+ @param rdtype: the type of the RRset
+ @type rdtype: int
+ @param covers: the covers value of the RRset
+ @type covers: int
+ @param deleting: the deleting value of the RRset
+ @type deleting: int
+ @param create: If True, create the RRset if it is not found.
+ The created RRset is appended to I{section}.
+ @type create: bool
+ @param force_unique: If True and create is also True, create a
+ new RRset regardless of whether a matching RRset exists already.
+ @type force_unique: bool
+ @raises KeyError: the RRset was not found and create was False
+ @rtype: dns.rrset.RRset object"""
+
+ if not force_unique:
+ for rrset in section:
+ if rrset.match(name, rdclass, rdtype, covers, deleting):
+ return rrset
+ if not create:
+ raise KeyError
+ rrset = dns.rrset.RRset(name, rdclass, rdtype, covers, deleting)
+ section.append(rrset)
+ return rrset
+
+ def get_rrset(self, section, name, rdclass, rdtype,
+ covers=dns.rdatatype.NONE, deleting=None, create=False,
+ force_unique=False):
+ """Get the RRset with the given attributes in the specified section.
+
+ If the RRset is not found, None is returned.
+
+ @param section: the section of the message to look in, e.g.
+ self.answer.
+ @type section: list of dns.rrset.RRset objects
+ @param name: the name of the RRset
+ @type name: dns.name.Name object
+ @param rdclass: the class of the RRset
+ @type rdclass: int
+ @param rdtype: the type of the RRset
+ @type rdtype: int
+ @param covers: the covers value of the RRset
+ @type covers: int
+ @param deleting: the deleting value of the RRset
+ @type deleting: int
+ @param create: If True, create the RRset if it is not found.
+ The created RRset is appended to I{section}.
+ @type create: bool
+ @param force_unique: If True and create is also True, create a
+ new RRset regardless of whether a matching RRset exists already.
+ @type force_unique: bool
+ @rtype: dns.rrset.RRset object or None"""
+
+ try:
+ rrset = self.find_rrset(section, name, rdclass, rdtype, covers,
+ deleting, create, force_unique)
+ except KeyError:
+ rrset = None
+ return rrset
+
+ def to_wire(self, origin=None, max_size=65535, **kw):
+ """Return a string containing the message in DNS compressed wire
+ format.
+
+ Additional keyword arguments are passed to the rrset to_wire()
+ method.
+
+ @param origin: The origin to be appended to any relative names.
+ @type origin: dns.name.Name object
+ @param max_size: The maximum size of the wire format output.
+ @type max_size: int
+ @raises dns.exception.TooBig: max_size was exceeded
+ @rtype: string
+ """
+
+ r = dns.renderer.Renderer(self.id, self.flags, max_size, origin)
+ for rrset in self.question:
+ r.add_question(rrset.name, rrset.rdtype, rrset.rdclass)
+ for rrset in self.answer:
+ r.add_rrset(dns.renderer.ANSWER, rrset, **kw)
+ for rrset in self.authority:
+ r.add_rrset(dns.renderer.AUTHORITY, rrset, **kw)
+ if self.edns >= 0:
+ r.add_edns(self.edns, self.ednsflags, self.payload)
+ for rrset in self.additional:
+ r.add_rrset(dns.renderer.ADDITIONAL, rrset, **kw)
+ r.write_header()
+ if not self.keyname is None:
+ r.add_tsig(self.keyname, self.keyring[self.keyname],
+ self.fudge, self.original_id, self.tsig_error,
+ self.other_data, self.request_mac)
+ self.mac = r.mac
+ return r.get_wire()
+
+ def use_tsig(self, keyring, keyname=None, fudge=300, original_id=None,
+ tsig_error=0, other_data=''):
+ """When sending, a TSIG signature using the specified keyring
+ and keyname should be added.
+
+ @param keyring: The TSIG keyring to use; defaults to None.
+ @type keyring: dict
+ @param keyname: The name of the TSIG key to use; defaults to None.
+ The key must be defined in the keyring. If a keyring is specified
+ but a keyname is not, then the key used will be the first key in the
+ keyring. Note that the order of keys in a dictionary is not defined,
+ so applications should supply a keyname when a keyring is used, unless
+ they know the keyring contains only one key.
+ @type keyname: dns.name.Name or string
+ @param fudge: TSIG time fudge; default is 300 seconds.
+ @type fudge: int
+ @param original_id: TSIG original id; defaults to the message's id
+ @type original_id: int
+ @param tsig_error: TSIG error code; default is 0.
+ @type tsig_error: int
+ @param other_data: TSIG other data.
+ @type other_data: string
+ """
+
+ self.keyring = keyring
+ if keyname is None:
+ self.keyname = self.keyring.keys()[0]
+ else:
+ if isinstance(keyname, str):
+ keyname = dns.name.from_text(keyname)
+ self.keyname = keyname
+ self.fudge = fudge
+ if original_id is None:
+ self.original_id = self.id
+ else:
+ self.original_id = original_id
+ self.tsig_error = tsig_error
+ self.other_data = other_data
+
+ def use_edns(self, edns, ednsflags, payload):
+ """Configure EDNS behavior.
+ @param edns: The EDNS level to use. Specifying None or -1 means
+ 'do not use EDNS'.
+ @type edns: int or None
+ @param ednsflags: EDNS flag values.
+ @type ednsflags: int
+ @param payload: The EDNS sender's payload field, which is the maximum
+ size of UDP datagram the sender can handle.
+ @type payload: int
+ @see: RFC 2671
+ """
+ if edns is None:
+ edns = -1
+ self.edns = edns
+ self.ednsflags = ednsflags
+ self.payload = payload
+
+ def rcode(self):
+ """Return the rcode.
+ @rtype: int
+ """
+ return dns.rcode.from_flags(self.flags, self.ednsflags)
+
+ def set_rcode(self, rcode):
+ """Set the rcode.
+ @param rcode: the rcode
+ @type rcode: int
+ """
+ (value, evalue) = dns.rcode.to_flags(rcode)
+ self.flags &= 0xFFF0
+ self.flags |= value
+ self.ednsflags &= 0xFF000000L
+ self.ednsflags |= evalue
+ if self.ednsflags != 0 and self.edns < 0:
+ self.edns = 0
+
+class _WireReader(object):
+ """Wire format reader.
+
+ @ivar wire: the wire-format message.
+ @type wire: string
+ @ivar message: The message object being built
+ @type message: dns.message.Message object
+ @ivar current: When building a message object from wire format, this
+ variable contains the offset from the beginning of wire of the next octet
+ to be read.
+ @type current: int
+ @ivar updating: Is the message a dynamic update?
+ @type updating: bool
+ @ivar zone_rdclass: The class of the zone in messages which are
+ DNS dynamic updates.
+ @type zone_rdclass: int
+ """
+
+ def __init__(self, wire, message, question_only=False):
+ self.wire = wire
+ self.message = message
+ self.current = 0
+ self.updating = False
+ self.zone_rdclass = dns.rdataclass.IN
+ self.question_only = question_only
+
+ def _get_question(self, qcount):
+ """Read the next I{qcount} records from the wire data and add them to
+ the question section.
+ @param qcount: the number of questions in the message
+ @type qcount: int"""
+
+ if self.updating and qcount > 1:
+ raise dns.exception.FormError
+
+ for i in xrange(0, qcount):
+ (qname, used) = dns.name.from_wire(self.wire, self.current)
+ if not self.message.origin is None:
+ qname = qname.relativize(self.message.origin)
+ self.current = self.current + used
+ (rdtype, rdclass) = \
+ struct.unpack('!HH',
+ self.wire[self.current:self.current + 4])
+ self.current = self.current + 4
+ self.message.find_rrset(self.message.question, qname,
+ rdclass, rdtype, create=True,
+ force_unique=True)
+ if self.updating:
+ self.zone_rdclass = rdclass
+
+ def _get_section(self, section, count):
+ """Read the next I{count} records from the wire data and add them to
+ the specified section.
+ @param section: the section of the message to which to add records
+ @type section: list of dns.rrset.RRset objects
+ @param count: the number of records to read
+ @type count: int"""
+
+ if self.updating:
+ force_unique = True
+ else:
+ force_unique = False
+ seen_opt = False
+ for i in xrange(0, count):
+ rr_start = self.current
+ (name, used) = dns.name.from_wire(self.wire, self.current)
+ if not self.message.origin is None:
+ name = name.relativize(self.message.origin)
+ self.current = self.current + used
+ (rdtype, rdclass, ttl, rdlen) = \
+ struct.unpack('!HHIH',
+ self.wire[self.current:self.current + 10])
+ self.current = self.current + 10
+ if rdtype == dns.rdatatype.OPT:
+ if not section is self.message.additional or seen_opt:
+ raise BadEDNS
+ self.message.payload = rdclass
+ self.message.ednsflags = ttl
+ self.message.edns = (ttl & 0xff0000) >> 16
+ seen_opt = True
+ elif rdtype == dns.rdatatype.TSIG:
+ if not (section is self.message.additional and
+ i == (count - 1)):
+ raise BadTSIG
+ if self.message.keyring is None:
+ raise UnknownTSIGKey, 'got signed message without keyring'
+ secret = self.message.keyring.get(name)
+ if secret is None:
+ raise UnknownTSIGKey, "key '%s' unknown" % name
+ self.message.tsig_ctx = \
+ dns.tsig.validate(self.wire,
+ name,
+ secret,
+ int(time.time()),
+ self.message.request_mac,
+ rr_start,
+ self.current,
+ rdlen,
+ self.message.tsig_ctx,
+ self.message.multi,
+ self.message.first)
+ self.message.had_tsig = True
+ else:
+ if ttl < 0:
+ ttl = 0
+ if self.updating and \
+ (rdclass == dns.rdataclass.ANY or
+ rdclass == dns.rdataclass.NONE):
+ deleting = rdclass
+ rdclass = self.zone_rdclass
+ else:
+ deleting = None
+ if deleting == dns.rdataclass.ANY:
+ covers = dns.rdatatype.NONE
+ rd = None
+ else:
+ rd = dns.rdata.from_wire(rdclass, rdtype, self.wire,
+ self.current, rdlen,
+ self.message.origin)
+ covers = rd.covers()
+ if self.message.xfr and rdtype == dns.rdatatype.SOA:
+ force_unique = True
+ rrset = self.message.find_rrset(section, name,
+ rdclass, rdtype, covers,
+ deleting, True, force_unique)
+ if not rd is None:
+ rrset.add(rd, ttl)
+ self.current = self.current + rdlen
+
+ def read(self):
+ """Read a wire format DNS message and build a dns.message.Message
+ object."""
+
+ l = len(self.wire)
+ if l < 12:
+ raise ShortHeader
+ (self.message.id, self.message.flags, qcount, ancount,
+ aucount, adcount) = struct.unpack('!HHHHHH', self.wire[:12])
+ self.current = 12
+ if dns.opcode.is_update(self.message.flags):
+ self.updating = True
+ self._get_question(qcount)
+ if self.question_only:
+ return
+ self._get_section(self.message.answer, ancount)
+ self._get_section(self.message.authority, aucount)
+ self._get_section(self.message.additional, adcount)
+ if self.current != l:
+ raise TrailingJunk
+ if self.message.multi and self.message.tsig_ctx and \
+ not self.message.had_tsig:
+ self.message.tsig_ctx.update(self.wire)
+
+
+def from_wire(wire, keyring=None, request_mac='', xfr=False, origin=None,
+ tsig_ctx = None, multi = False, first = True,
+ question_only = False):
+ """Convert a DNS wire format message into a message
+ object.
+
+ @param keyring: The keyring to use if the message is signed.
+ @type keyring: dict
+ @param request_mac: If the message is a response to a TSIG-signed request,
+ I{request_mac} should be set to the MAC of that request.
+ @type request_mac: string
+ @param xfr: Is this message part of a zone transfer?
+ @type xfr: bool
+ @param origin: If the message is part of a zone transfer, I{origin}
+ should be the origin name of the zone.
+ @type origin: dns.name.Name object
+ @param tsig_ctx: The ongoing TSIG context, used when validating zone
+ transfers.
+ @type tsig_ctx: hmac.HMAC object
+ @param multi: Is this message part of a multiple message sequence?
+ @type multi: bool
+ @param first: Is this message standalone, or the first of a multi
+ message sequence?
+ @type first: bool
+ @param question_only: Read only up to the end of the question section?
+ @type question_only: bool
+ @raises ShortHeader: The message is less than 12 octets long.
+ @raises TrailingJunk: There were octets in the message past the end
+ of the proper DNS message.
+ @raises BadEDNS: An OPT record was in the wrong section, or occurred more
+ than once.
+ @raises BadTSIG: A TSIG record was not the last record of the additional
+ data section.
+ @rtype: dns.message.Message object"""
+
+ m = Message(id=0)
+ m.keyring = keyring
+ m.request_mac = request_mac
+ m.xfr = xfr
+ m.origin = origin
+ m.tsig_ctx = tsig_ctx
+ m.multi = multi
+ m.first = first
+
+ reader = _WireReader(wire, m, question_only)
+ reader.read()
+
+ return m
+
+
+class _TextReader(object):
+ """Text format reader.
+
+ @ivar tok: the tokenizer
+ @type tok: dns.tokenizer.Tokenizer object
+ @ivar message: The message object being built
+ @type message: dns.message.Message object
+ @ivar updating: Is the message a dynamic update?
+ @type updating: bool
+ @ivar zone_rdclass: The class of the zone in messages which are
+ DNS dynamic updates.
+ @type zone_rdclass: int
+ @ivar last_name: The most recently read name when building a message object
+ from text format.
+ @type last_name: dns.name.Name object
+ """
+
+ def __init__(self, text, message):
+ self.message = message
+ self.tok = dns.tokenizer.Tokenizer(text)
+ self.last_name = None
+ self.zone_rdclass = dns.rdataclass.IN
+ self.updating = False
+
+ def _header_line(self, section):
+ """Process one line from the text format header section."""
+
+ (ttype, what) = self.tok.get()
+ if what == 'id':
+ self.message.id = self.tok.get_int()
+ elif what == 'flags':
+ while True:
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ self.tok.unget(token)
+ break
+ self.message.flags = self.message.flags | \
+ dns.flags.from_text(token[1])
+ if dns.opcode.is_update(self.message.flags):
+ self.updating = True
+ elif what == 'edns':
+ self.message.edns = self.tok.get_int()
+ self.message.ednsflags = self.message.ednsflags | \
+ (self.message.edns << 16)
+ elif what == 'eflags':
+ if self.message.edns < 0:
+ self.message.edns = 0
+ while True:
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ self.tok.unget(token)
+ break
+ self.message.ednsflags = self.message.ednsflags | \
+ dns.flags.edns_from_text(token[1])
+ elif what == 'payload':
+ self.message.payload = self.tok.get_int()
+ if self.message.edns < 0:
+ self.message.edns = 0
+ elif what == 'opcode':
+ text = self.tok.get_string()
+ self.message.flags = self.message.flags | \
+ dns.opcode.to_flags(dns.opcode.from_text(text))
+ elif what == 'rcode':
+ text = self.tok.get_string()
+ self.message.set_rcode(dns.rcode.from_text(text))
+ else:
+ raise UnknownHeaderField
+ self.tok.get_eol()
+
+ def _question_line(self, section):
+ """Process one line from the text format question section."""
+
+ token = self.tok.get(want_leading = True)
+ if token[0] != dns.tokenizer.WHITESPACE:
+ self.last_name = dns.name.from_text(token[1], None)
+ name = self.last_name
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ # Class
+ try:
+ rdclass = dns.rdataclass.from_text(token[1])
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ except dns.exception.SyntaxError:
+ raise dns.exception.SyntaxError
+ except:
+ rdclass = dns.rdataclass.IN
+ # Type
+ rdtype = dns.rdatatype.from_text(token[1])
+ self.message.find_rrset(self.message.question, name,
+ rdclass, rdtype, create=True,
+ force_unique=True)
+ if self.updating:
+ self.zone_rdclass = rdclass
+ self.tok.get_eol()
+
+ def _rr_line(self, section):
+ """Process one line from the text format answer, authority, or
+ additional data sections.
+ """
+
+ deleting = None
+ # Name
+ token = self.tok.get(want_leading = True)
+ if token[0] != dns.tokenizer.WHITESPACE:
+ self.last_name = dns.name.from_text(token[1], None)
+ name = self.last_name
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ # TTL
+ try:
+ ttl = int(token[1], 0)
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ except dns.exception.SyntaxError:
+ raise dns.exception.SyntaxError
+ except:
+ ttl = 0
+ # Class
+ try:
+ rdclass = dns.rdataclass.from_text(token[1])
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ if rdclass == dns.rdataclass.ANY or rdclass == dns.rdataclass.NONE:
+ deleting = rdclass
+ rdclass = self.zone_rdclass
+ except dns.exception.SyntaxError:
+ raise dns.exception.SyntaxError
+ except:
+ rdclass = dns.rdataclass.IN
+ # Type
+ rdtype = dns.rdatatype.from_text(token[1])
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.EOL and token[0] != dns.tokenizer.EOF:
+ self.tok.unget(token)
+ rd = dns.rdata.from_text(rdclass, rdtype, self.tok, None)
+ covers = rd.covers()
+ else:
+ rd = None
+ covers = dns.rdatatype.NONE
+ rrset = self.message.find_rrset(section, name,
+ rdclass, rdtype, covers,
+ deleting, True, self.updating)
+ if not rd is None:
+ rrset.add(rd, ttl)
+
+ def read(self):
+ """Read a text format DNS message and build a dns.message.Message
+ object."""
+
+ line_method = self._header_line
+ section = None
+ while 1:
+ token = self.tok.get(True, True)
+ if token[0] == dns.tokenizer.EOL or token[0] == dns.tokenizer.EOF:
+ break
+ if token[0] == dns.tokenizer.COMMENT:
+ u = token[1].upper()
+ if u == 'HEADER':
+ line_method = self._header_line
+ elif u == 'QUESTION' or u == 'ZONE':
+ line_method = self._question_line
+ section = self.message.question
+ elif u == 'ANSWER' or u == 'PREREQ':
+ line_method = self._rr_line
+ section = self.message.answer
+ elif u == 'AUTHORITY' or u == 'UPDATE':
+ line_method = self._rr_line
+ section = self.message.authority
+ elif u == 'ADDITIONAL':
+ line_method = self._rr_line
+ section = self.message.additional
+ self.tok.get_eol()
+ continue
+ self.tok.unget(token)
+ line_method(section)
+
+
+def from_text(text):
+ """Convert the text format message into a message object.
+
+ @param text: The text format message.
+ @type text: string
+ @raises UnknownHeaderField:
+ @raises dns.exception.SyntaxError:
+ @rtype: dns.message.Message object"""
+
+ # 'text' can also be a file, but we don't publish that fact
+ # since it's an implementation detail. The official file
+ # interface is from_file().
+
+ m = Message()
+
+ reader = _TextReader(text, m)
+ reader.read()
+
+ return m
+
+def from_file(f):
+ """Read the next text format message from the specified file.
+
+ @param f: file or string. If I{f} is a string, it is treated
+ as the name of a file to open.
+ @raises UnknownHeaderField:
+ @raises dns.exception.SyntaxError:
+ @rtype: dns.message.Message object"""
+
+ if sys.hexversion >= 0x02030000:
+ # allow Unicode filenames; turn on universal newline support
+ str_type = basestring
+ opts = 'rU'
+ else:
+ str_type = str
+ opts = 'r'
+ if isinstance(f, str_type):
+ f = file(f, opts)
+ want_close = True
+ else:
+ want_close = False
+
+ try:
+ m = from_text(f)
+ finally:
+ if want_close:
+ f.close()
+ return m
+
+def make_query(qname, rdtype, rdclass = dns.rdataclass.IN):
+ """Make a query message.
+
+ The query name, type, and class may all be specified either
+ as objects of the appropriate type, or as strings.
+
+ The query will have a randomly choosen query id, and its DNS flags
+ will be set to dns.flags.RD.
+
+ @param qname: The query name.
+ @type qname: dns.name.Name object or string
+ @param rdtype: The desired rdata type.
+ @type rdtype: int
+ @param rdclass: The desired rdata class; the default is class IN.
+ @type rdclass: int
+ @rtype: dns.message.Message object"""
+
+ if isinstance(qname, str):
+ qname = dns.name.from_text(qname)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(rdclass, str):
+ rdclass = dns.rdataclass.from_text(rdclass)
+ m = Message()
+ m.flags |= dns.flags.RD
+ m.find_rrset(m.question, qname, rdclass, rdtype, create=True,
+ force_unique=True)
+ return m
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: name.py,v 1.39 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Names.
+
+@var root: The DNS root name.
+@type root: dns.name.Name object
+@var empty: The empty DNS name.
+@type empty: dns.name.Name object
+"""
+
+import string
+import struct
+import sys
+import types
+
+import dns.exception
+
+NAMERELN_NONE = 0
+NAMERELN_SUPERDOMAIN = 1
+NAMERELN_SUBDOMAIN = 2
+NAMERELN_EQUAL = 3
+NAMERELN_COMMONANCESTOR = 4
+
+class EmptyLabel(dns.exception.SyntaxError):
+ """Raised if a label is empty."""
+ pass
+
+class BadEscape(dns.exception.SyntaxError):
+ """Raised if an escaped code in a text format name is invalid."""
+ pass
+
+class BadPointer(dns.exception.FormError):
+ """Raised if a compression pointer points forward instead of backward."""
+ pass
+
+class BadLabelType(dns.exception.FormError):
+ """Raised if the label type of a wire format name is unknown."""
+ pass
+
+class NeedAbsoluteNameOrOrigin(dns.exception.DNSException):
+ """Raised if an attempt is made to convert a non-absolute name to
+ wire when there is also a non-absolute (or missing) origin."""
+ pass
+
+class NameTooLong(dns.exception.FormError):
+ """Raised if a name is > 255 octets long."""
+ pass
+
+class LabelTooLong(dns.exception.SyntaxError):
+ """Raised if a label is > 63 octets long."""
+ pass
+
+class AbsoluteConcatenation(dns.exception.DNSException):
+ """Raised if an attempt is made to append anything other than the
+ empty name to an absolute name."""
+ pass
+
+_escaped = {
+ '"' : True,
+ '(' : True,
+ ')' : True,
+ '.' : True,
+ ';' : True,
+ '\\' : True,
+ '@' : True,
+ '$' : True
+ }
+
+def _escapify(label):
+ """Escape the characters in label which need it.
+ @returns: the escaped string
+ @rtype: string"""
+ text = ''
+ for c in label:
+ if c in _escaped:
+ text += '\\' + c
+ elif ord(c) > 0x20 and ord(c) < 0x7F:
+ text += c
+ else:
+ text += '\\%03d' % ord(c)
+ return text
+
+def _validate_labels(labels):
+ """Check for empty labels in the middle of a label sequence,
+ labels that are too long, and for too many labels.
+ @raises NameTooLong: the name as a whole is too long
+ @raises LabelTooLong: an individual label is too long
+ @raises EmptyLabel: a label is empty (i.e. the root label) and appears
+ in a position other than the end of the label sequence"""
+
+ l = len(labels)
+ total = 0
+ i = -1
+ j = 0
+ for label in labels:
+ ll = len(label)
+ total += ll + 1
+ if ll > 63:
+ raise LabelTooLong
+ if i < 0 and label == '':
+ i = j
+ j += 1
+ if total > 255:
+ raise NameTooLong
+ if i >= 0 and i != l - 1:
+ raise EmptyLabel
+
+class Name(object):
+ """A DNS name.
+
+ The dns.name.Name class represents a DNS name as a tuple of labels.
+ Instances of the class are immutable.
+
+ @ivar labels: The tuple of labels in the name. Each label is a string of
+ up to 63 octets."""
+
+ __slots__ = ['labels']
+
+ def __init__(self, labels):
+ """Initialize a domain name from a list of labels.
+ @param labels: the labels
+ @type labels: any iterable whose values are strings
+ """
+
+ super(Name, self).__setattr__('labels', tuple(labels))
+ _validate_labels(self.labels)
+
+ def __setattr__(self, name, value):
+ raise TypeError, "object doesn't support attribute assignment"
+
+ def is_absolute(self):
+ """Is the most significant label of this name the root label?
+ @rtype: bool
+ """
+
+ return len(self.labels) > 0 and self.labels[-1] == ''
+
+ def is_wild(self):
+ """Is this name wild? (I.e. Is the least significant label '*'?)
+ @rtype: bool
+ """
+
+ return len(self.labels) > 0 and self.labels[0] == '*'
+
+ def __hash__(self):
+ """Return a case-insensitive hash of the name.
+ @rtype: int
+ """
+
+ h = 0L
+ for label in self.labels:
+ for c in label:
+ h += ( h << 3 ) + ord(c.lower())
+ return int(h % sys.maxint)
+
+ def fullcompare(self, other):
+ """Compare two names, returning a 3-tuple (relation, order, nlabels).
+
+ I{relation} describes the relation ship beween the names,
+ and is one of: dns.name.NAMERELN_NONE,
+ dns.name.NAMERELN_SUPERDOMAIN, dns.name.NAMERELN_SUBDOMAIN,
+ dns.name.NAMERELN_EQUAL, or dns.name.NAMERELN_COMMONANCESTOR
+
+ I{order} is < 0 if self < other, > 0 if self > other, and ==
+ 0 if self == other. A relative name is always less than an
+ absolute name. If both names have the same relativity, then
+ the DNSSEC order relation is used to order them.
+
+ I{nlabels} is the number of significant labels that the two names
+ have in common.
+ """
+
+ sabs = self.is_absolute()
+ oabs = other.is_absolute()
+ if sabs != oabs:
+ if sabs:
+ return (NAMERELN_NONE, 1, 0)
+ else:
+ return (NAMERELN_NONE, -1, 0)
+ l1 = len(self.labels)
+ l2 = len(other.labels)
+ ldiff = l1 - l2
+ if ldiff < 0:
+ l = l1
+ else:
+ l = l2
+
+ order = 0
+ nlabels = 0
+ namereln = NAMERELN_NONE
+ while l > 0:
+ l -= 1
+ l1 -= 1
+ l2 -= 1
+ label1 = self.labels[l1].lower()
+ label2 = other.labels[l2].lower()
+ if label1 < label2:
+ order = -1
+ if nlabels > 0:
+ namereln = NAMERELN_COMMONANCESTOR
+ return (namereln, order, nlabels)
+ elif label1 > label2:
+ order = 1
+ if nlabels > 0:
+ namereln = NAMERELN_COMMONANCESTOR
+ return (namereln, order, nlabels)
+ nlabels += 1
+ order = ldiff
+ if ldiff < 0:
+ namereln = NAMERELN_SUPERDOMAIN
+ elif ldiff > 0:
+ namereln = NAMERELN_SUBDOMAIN
+ else:
+ namereln = NAMERELN_EQUAL
+ return (namereln, order, nlabels)
+
+ def is_subdomain(self, other):
+ """Is self a subdomain of other?
+
+ The notion of subdomain includes equality.
+ @rtype: bool
+ """
+
+ (nr, o, nl) = self.fullcompare(other)
+ if nr == NAMERELN_SUBDOMAIN or nr == NAMERELN_EQUAL:
+ return True
+ return False
+
+ def is_superdomain(self, other):
+ """Is self a superdomain of other?
+
+ The notion of subdomain includes equality.
+ @rtype: bool
+ """
+
+ (nr, o, nl) = self.fullcompare(other)
+ if nr == NAMERELN_SUPERDOMAIN or nr == NAMERELN_EQUAL:
+ return True
+ return False
+
+ def canonicalize(self):
+ """Return a name which is equal to the current name, but is in
+ DNSSEC canonical form.
+ @rtype: dns.name.Name object
+ """
+
+ return Name([x.lower() for x in self.labels])
+
+ def __eq__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] == 0
+ else:
+ return False
+
+ def __ne__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] != 0
+ else:
+ return True
+
+ def __lt__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] < 0
+ else:
+ return NotImplemented
+
+ def __le__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] <= 0
+ else:
+ return NotImplemented
+
+ def __ge__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] >= 0
+ else:
+ return NotImplemented
+
+ def __gt__(self, other):
+ if isinstance(other, Name):
+ return self.fullcompare(other)[1] > 0
+ else:
+ return NotImplemented
+
+ def __repr__(self):
+ return '<DNS name ' + self.__str__() + '>'
+
+ def __str__(self):
+ return self.to_text(False)
+
+ def to_text(self, omit_final_dot = False):
+ """Convert name to text format.
+ @param omit_final_dot: If True, don't emit the final dot (denoting the
+ root label) for absolute names. The default is False.
+ @rtype: string
+ """
+
+ if len(self.labels) == 0:
+ return '@'
+ if len(self.labels) == 1 and self.labels[0] == '':
+ return '.'
+ if omit_final_dot and self.is_absolute():
+ l = self.labels[:-1]
+ else:
+ l = self.labels
+ s = string.join(map(_escapify, l), '.')
+ return s
+
+ def to_digestable(self, origin=None):
+ """Convert name to a format suitable for digesting in hashes.
+
+ The name is canonicalized and converted to uncompressed wire format.
+
+ @param origin: If the name is relative and origin is not None, then
+ origin will be appended to it.
+ @type origin: dns.name.Name object
+ @raises NeedAbsoluteNameOrOrigin: All names in wire format are
+ absolute. If self is a relative name, then an origin must be supplied;
+ if it is missing, then this exception is raised
+ @rtype: string
+ """
+
+ if not self.is_absolute():
+ if origin is None or not origin.is_absolute():
+ raise NeedAbsoluteNameOrOrigin
+ labels = list(self.labels)
+ labels.extend(list(origin.labels))
+ else:
+ labels = self.labels
+ dlabels = ["%s%s" % (chr(len(x)), x.lower()) for x in labels]
+ return ''.join(dlabels)
+
+ def to_wire(self, file, compress = None, origin = None):
+ """Convert name to wire format, possibly compressing it.
+
+ @param file: the file where the compressed name is emitted (typically
+ a cStringIO file)
+ @type file: file
+ @param compress: The compression table. If None (the default) names
+ will not be compressed.
+ @type compress: dict
+ @param origin: If the name is relative and origin is not None, then
+ origin will be appended to it.
+ @type origin: dns.name.Name object
+ @raises NeedAbsoluteNameOrOrigin: All names in wire format are
+ absolute. If self is a relative name, then an origin must be supplied;
+ if it is missing, then this exception is raised
+ """
+
+ if not self.is_absolute():
+ if origin is None or not origin.is_absolute():
+ raise NeedAbsoluteNameOrOrigin
+ labels = list(self.labels)
+ labels.extend(list(origin.labels))
+ else:
+ labels = self.labels
+ i = 0
+ for label in labels:
+ n = Name(labels[i:])
+ i += 1
+ if not compress is None:
+ pos = compress.get(n)
+ else:
+ pos = None
+ if not pos is None:
+ value = 0xc000 + pos
+ s = struct.pack('!H', value)
+ file.write(s)
+ return
+ else:
+ if not compress is None and len(n) > 1:
+ pos = file.tell()
+ if pos < 0xc000:
+ compress[n] = pos
+ l = len(label)
+ file.write(chr(l))
+ if l > 0:
+ file.write(label)
+
+ def __len__(self):
+ """The length of the name (in labels).
+ @rtype: int
+ """
+
+ return len(self.labels)
+
+ def __getitem__(self, index):
+ return self.labels[index]
+
+ def __getslice__(self, start, stop):
+ return self.labels[start:stop]
+
+ def __add__(self, other):
+ return self.concatenate(other)
+
+ def __sub__(self, other):
+ return self.relativize(other)
+
+ def split(self, depth):
+ """Split a name into a prefix and suffix at depth.
+
+ @param depth: the number of labels in the suffix
+ @type depth: int
+ @raises ValueError: the depth was not >= 0 and <= the length of the
+ name.
+ @returns: the tuple (prefix, suffix)
+ @rtype: tuple
+ """
+
+ l = len(self.labels)
+ if depth == 0:
+ return (self, dns.name.empty)
+ elif depth == l:
+ return (dns.name.empty, self)
+ elif depth < 0 or depth > l:
+ raise ValueError, \
+ 'depth must be >= 0 and <= the length of the name'
+ return (Name(self[: -depth]), Name(self[-depth :]))
+
+ def concatenate(self, other):
+ """Return a new name which is the concatenation of self and other.
+ @rtype: dns.name.Name object
+ @raises AbsoluteConcatenation: self is absolute and other is
+ not the empty name
+ """
+
+ if self.is_absolute() and len(other) > 0:
+ raise AbsoluteConcatenation
+ labels = list(self.labels)
+ labels.extend(list(other.labels))
+ return Name(labels)
+
+ def relativize(self, origin):
+ """If self is a subdomain of origin, return a new name which is self
+ relative to origin. Otherwise return self.
+ @rtype: dns.name.Name object
+ """
+
+ if not origin is None and self.is_subdomain(origin):
+ return Name(self[: -len(origin)])
+ else:
+ return self
+
+ def derelativize(self, origin):
+ """If self is a relative name, return a new name which is the
+ concatenation of self and origin. Otherwise return self.
+ @rtype: dns.name.Name object
+ """
+
+ if not self.is_absolute():
+ return self.concatenate(origin)
+ else:
+ return self
+
+ def choose_relativity(self, origin=None, relativize=True):
+ """Return a name with the relativity desired by the caller. If
+ origin is None, then self is returned. Otherwise, if
+ relativize is true the name is relativized, and if relativize is
+ false the name is derelativized.
+ @rtype: dns.name.Name object
+ """
+
+ if origin:
+ if relativize:
+ return self.relativize(origin)
+ else:
+ return self.derelativize(origin)
+ else:
+ return self
+
+root = Name([''])
+empty = Name([])
+
+def from_text(text, origin = root):
+ """Convert text into a Name object.
+ @rtype: dns.name.Name object
+ """
+
+ if not isinstance(text, str):
+ raise ValueError, "input to from_text() must be a byte string"
+ if not (origin is None or isinstance(origin, Name)):
+ raise ValueError, "origin must be a Name or None"
+ labels = []
+ label = ''
+ escaping = False
+ if text == '@':
+ text = ''
+ if text:
+ if text == '.':
+ return Name([''])
+ for c in text:
+ if escaping:
+ if edigits == 0:
+ if c.isdigit():
+ total = int(c)
+ edigits += 1
+ else:
+ label += c
+ escaping = False
+ else:
+ if not c.isdigit():
+ raise BadEscape
+ total *= 10
+ total += int(c)
+ edigits += 1
+ if edigits == 3:
+ escaping = False
+ label += chr(total)
+ elif c == '.':
+ if len(label) == 0:
+ raise EmptyLabel
+ labels.append(label)
+ label = ''
+ elif c == '\\':
+ escaping = True
+ edigits = 0
+ total = 0
+ else:
+ label += c
+ if len(label) > 0:
+ labels.append(label)
+ else:
+ labels.append('')
+ if (len(labels) == 0 or labels[-1] != '') and not origin is None:
+ labels.extend(list(origin.labels))
+ return Name(labels)
+
+def from_wire(message, current):
+ """Convert possibly compressed wire format into a Name.
+ @param message: the entire DNS message
+ @type message: string
+ @param current: the offset of the beginning of the name from the start
+ of the message
+ @type current: int
+ @raises dns.name.BadPointer: a compression pointer did not point backwards
+ in the message
+ @raises dns.name.BadLabelType: an invalid label type was encountered.
+ @returns: a tuple consisting of the name that was read and the number
+ of bytes of the wire format message which were consumed reading it
+ @rtype: (dns.name.Name object, int) tuple
+ """
+
+ if not isinstance(message, str):
+ raise ValueError, "input to from_wire() must be a byte string"
+ labels = []
+ biggest_pointer = current
+ hops = 0
+ count = ord(message[current])
+ current += 1
+ cused = 1
+ while count != 0:
+ if count < 64:
+ labels.append(message[current : current + count])
+ current += count
+ if hops == 0:
+ cused += count
+ elif count >= 192:
+ current = (count & 0x3f) * 256 + ord(message[current])
+ if hops == 0:
+ cused += 1
+ if current >= biggest_pointer:
+ raise BadPointer
+ biggest_pointer = current
+ hops += 1
+ else:
+ raise BadLabelType
+ count = ord(message[current])
+ current += 1
+ if hops == 0:
+ cused += 1
+ labels.append('')
+ return (Name(labels), cused)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: namedict.py,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+"""DNS name dictionary"""
+
+import dns.name
+
+class NameDict(dict):
+
+ """A dictionary whose keys are dns.name.Name objects.
+ @ivar max_depth: the maximum depth of the keys that have ever been
+ added to the dictionary.
+ @type max_depth: int
+ """
+
+ def __init__(self, *args, **kwargs):
+ super(NameDict, self).__init__(*args, **kwargs)
+ self.max_depth = 0
+
+ def __setitem__(self, key, value):
+ if not isinstance(key, dns.name.Name):
+ raise ValueError, 'NameDict key must be a name'
+ depth = len(key)
+ if depth > self.max_depth:
+ self.max_depth = depth
+ super(NameDict, self).__setitem__(key, value)
+
+ def get_deepest_match(self, name):
+ """Find the deepest match to I{name} in the dictionary.
+
+ The deepest match is the longest name in the dictionary which is
+ a superdomain of I{name}.
+
+ @param name: the name
+ @type name: dns.name.Name object
+ @rtype: (key, value) tuple
+ """
+
+ depth = len(name)
+ if depth > self.max_depth:
+ depth = self.max_depth
+ for i in xrange(-depth, 0):
+ n = dns.name.Name(name[i:])
+ if self.has_key(n):
+ return (n, self[n])
+ v = self[dns.name.empty]
+ return (dns.name.empty, v)
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: node.py,v 1.19 2004/03/19 00:17:27 halley Exp $
+
+"""DNS nodes. A node is a set of rdatasets."""
+
+import StringIO
+
+import dns.rdataset
+import dns.rdatatype
+import dns.renderer
+
+class Node(object):
+ """A DNS node.
+
+ A node is a set of rdatasets
+
+ @ivar rdatasets: the node's rdatasets
+ @type rdatasets: list of dns.rdataset.Rdataset objects"""
+
+ __slots__ = ['rdatasets']
+
+ def __init__(self):
+ """Initialize a DNS node.
+ """
+
+ self.rdatasets = [];
+
+ def to_text(self, name, **kw):
+ """Convert a node to text format.
+
+ Each rdataset at the node is printed. Any keyword arguments
+ to this method are passed on to the rdataset's to_text() method.
+ @param name: the owner name of the rdatasets
+ @type name: dns.name.Name object
+ @rtype: string
+ """
+
+ s = StringIO.StringIO()
+ for rds in self.rdatasets:
+ print >> s, rds.to_text(name, **kw)
+ return s.getvalue()[:-1]
+
+ def __repr__(self):
+ return '<DNS node ' + str(id(self)) + '>'
+
+ def __eq__(self, other):
+ """Two nodes are equal if they have the same rdatasets.
+
+ @rtype: bool
+ """
+ #
+ # This is inefficient. Good thing we don't need to do it much.
+ #
+ for rd in self.rdatasets:
+ if rd not in other.rdatasets:
+ return False
+ for rd in other.rdatasets:
+ if rd not in self.rdatasets:
+ return False
+ return True
+
+ def __ne__(self, other):
+ return not self.__eq__(other)
+
+ def __len__(self):
+ return len(self.rdatasets)
+
+ def __iter__(self):
+ return iter(self.rdatasets)
+
+ def find_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE,
+ create=False):
+ """Find an rdataset matching the specified properties in the
+ current node.
+
+ @param rdclass: The class of the rdataset
+ @type rdclass: int
+ @param rdtype: The type of the rdataset
+ @type rdtype: int
+ @param covers: The covered type. Usually this value is
+ dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or
+ dns.rdatatype.RRSIG, then the covers value will be the rdata
+ type the SIG/RRSIG covers. The library treats the SIG and RRSIG
+ types as if they were a family of
+ types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much
+ easier to work with than if RRSIGs covering different rdata
+ types were aggregated into a single RRSIG rdataset.
+ @type covers: int
+ @param create: If True, create the rdataset if it is not found.
+ @type create: bool
+ @raises KeyError: An rdataset of the desired type and class does
+ not exist and I{create} is not True.
+ @rtype: dns.rdataset.Rdataset object
+ """
+
+ for rds in self.rdatasets:
+ if rds.match(rdclass, rdtype, covers):
+ return rds
+ if not create:
+ raise KeyError
+ rds = dns.rdataset.Rdataset(rdclass, rdtype)
+ self.rdatasets.append(rds)
+ return rds
+
+ def get_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE,
+ create=False):
+ """Get an rdataset matching the specified properties in the
+ current node.
+
+ None is returned if an rdataset of the specified type and
+ class does not exist and I{create} is not True.
+
+ @param rdclass: The class of the rdataset
+ @type rdclass: int
+ @param rdtype: The type of the rdataset
+ @type rdtype: int
+ @param covers: The covered type.
+ @type covers: int
+ @param create: If True, create the rdataset if it is not found.
+ @type create: bool
+ @rtype: dns.rdataset.Rdataset object or None
+ """
+
+ try:
+ rds = self.find_rdataset(rdclass, rdtype, covers, create)
+ except KeyError:
+ rds = None
+ return rds
+
+ def delete_rdataset(self, rdclass, rdtype, covers=dns.rdatatype.NONE):
+ """Delete the rdataset matching the specified properties in the
+ current node.
+
+ If a matching rdataset does not exist, it is not an error.
+
+ @param rdclass: The class of the rdataset
+ @type rdclass: int
+ @param rdtype: The type of the rdataset
+ @type rdtype: int
+ @param covers: The covered type.
+ @type covers: int
+ """
+
+ rds = self.get_rdataset(rdclass, rdtype, covers)
+ if not rds is None:
+ self.rdatasets.remove(rds)
+
+ def replace_rdataset(self, replacement):
+ """Replace an rdataset.
+
+ It is not an error if there is no rdataset matching I{replacement}.
+
+ Ownership of the I{replacement} object is transferred to the node;
+ in other words, this method does not store a copy of I{replacement}
+ at the node, it stores I{replacement} itself.
+ """
+
+ self.delete_rdataset(replacement.rdclass, replacement.rdtype,
+ replacement.covers)
+ self.rdatasets.append(replacement)
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: opcode.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Opcodes."""
+
+import dns.exception
+
+QUERY = 0
+IQUERY = 1
+STATUS = 2
+NOTIFY = 4
+UPDATE = 5
+
+_by_text = {
+ 'QUERY' : QUERY,
+ 'IQUERY' : IQUERY,
+ 'STATUS' : STATUS,
+ 'NOTIFY' : NOTIFY,
+ 'UPDATE' : UPDATE
+}
+
+# We construct the inverse mapping programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mapping not to be true inverse.
+
+_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
+
+
+class UnknownOpcode(dns.exception.DNSException):
+ """Raised if an opcode is unknown."""
+ pass
+
+def from_text(text):
+ """Convert text into an opcode.
+
+ @param text: the textual opcode
+ @type text: string
+ @raises UnknownOpcode: the opcode is unknown
+ @rtype: int
+ """
+
+ if text.isdigit():
+ value = int(text)
+ if value >= 0 and value <= 15:
+ return value
+ value = _by_text.get(text.upper())
+ if value is None:
+ raise UnknownOpcode
+ return value
+
+def from_flags(flags):
+ """Extract an opcode from DNS message flags.
+
+ @param flags: int
+ @rtype: int
+ """
+
+ return (flags & 0x7800) >> 11
+
+def to_flags(value):
+ """Convert an opcode to a value suitable for ORing into DNS message
+ flags.
+ @rtype: int
+ """
+
+ return (value << 11) & 0x7800
+
+def to_text(value):
+ """Convert an opcode to text.
+
+ @param value: the opcdoe
+ @type value: int
+ @raises UnknownOpcode: the opcode is unknown
+ @rtype: string
+ """
+
+ text = _by_value.get(value)
+ if text is None:
+ text = str(value)
+ return text
+
+def is_update(flags):
+ """True if the opcode in flags is UPDATE.
+
+ @param flags: DNS flags
+ @type flags: int
+ @rtype: bool
+ """
+
+ if (from_flags(flags) == UPDATE):
+ return True
+ return False
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: query.py,v 1.18 2004/03/19 00:17:27 halley Exp $
+
+"""Talk to a DNS server."""
+
+from __future__ import generators
+
+import errno
+import select
+import socket
+import struct
+import sys
+import time
+
+import dns.exception
+import dns.name
+import dns.message
+import dns.rdataclass
+import dns.rdatatype
+
+class UnexpectedSource(dns.exception.DNSException):
+ """Raised if a query response comes from an unexpected address or port."""
+ pass
+
+class BadResponse(dns.exception.FormError):
+ """Raised if a query response does not respond to the question asked."""
+ pass
+
+def _compute_expiration(timeout):
+ if timeout is None:
+ return None
+ else:
+ return time.time() + timeout
+
+def _wait_for(ir, iw, ix, expiration):
+ if expiration is None:
+ timeout = None
+ else:
+ timeout = expiration - time.time()
+ if timeout <= 0.0:
+ raise dns.exception.Timeout
+ if timeout is None:
+ (r, w, x) = select.select(ir, iw, ix)
+ else:
+ (r, w, x) = select.select(ir, iw, ix, timeout)
+ if len(r) == 0 and len(w) == 0 and len(x) == 0:
+ raise dns.exception.Timeout
+
+def _wait_for_readable(s, expiration):
+ _wait_for([s], [], [s], expiration)
+
+def _wait_for_writable(s, expiration):
+ _wait_for([], [s], [s], expiration)
+
+def udp(q, where, timeout=None, port=53, af=socket.AF_INET):
+ """Return the response obtained after sending a query via UDP.
+
+ @param q: the query
+ @type q: dns.message.Message
+ @param timeout: The number of seconds to wait before the query times out.
+ If None, the default, wait forever.
+ @type timeout: float
+ @param port: The port to which to send the message. The default is 53.
+ @type port: int
+ @param af: the address family to use. The default is socket.AF_INET.
+ @type af: int
+ @rtype: dns.message.Message object"""
+
+ wire = q.to_wire()
+ s = socket.socket(af, socket.SOCK_DGRAM, 0)
+ try:
+ expiration = _compute_expiration(timeout)
+ s.setblocking(0)
+ _wait_for_writable(s, expiration)
+ s.sendto(wire, (where, port))
+ _wait_for_readable(s, expiration)
+ (wire, from_address) = s.recvfrom(65535)
+ finally:
+ s.close()
+ if from_address != (where, port):
+ raise UnexpectedSource
+ r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac)
+ if not q.is_response(r):
+ raise BadResponse
+ return r
+
+def _net_read(sock, count, expiration):
+ """Read the specified number of bytes from sock. Keep trying until we
+ either get the desired amount, or we hit EOF.
+ A Timeout exception will be raised if the operation is not completed
+ by the expiration time.
+ """
+ s = ''
+ while count > 0:
+ _wait_for_readable(sock, expiration)
+ n = sock.recv(count)
+ if n == '':
+ raise EOFError
+ count = count - len(n)
+ s = s + n
+ return s
+
+def _net_write(sock, data, expiration):
+ """Write the specified data to the socket.
+ A Timeout exception will be raised if the operation is not completed
+ by the expiration time.
+ """
+ current = 0
+ l = len(data)
+ while current < l:
+ _wait_for_writable(sock, expiration)
+ current += sock.send(data[current:])
+
+def _connect(s, address):
+ try:
+ s.connect(address)
+ except socket.error:
+ (ty, v) = sys.exc_info()[:2]
+ if v[0] != errno.EINPROGRESS and v[0] != errno.EWOULDBLOCK:
+ raise ty, v
+
+def tcp(q, where, timeout=None, port=53, af=socket.AF_INET):
+ """Return the response obtained after sending a query via TCP.
+
+ @param q: the query
+ @type q: dns.message.Message object
+ @param timeout: The number of seconds to wait before the query times out.
+ If None, the default, wait forever.
+ @type timeout: float
+ @param port: The port to which to send the message. The default is 53.
+ @type port: int
+ @param af: the address family to use. The default is socket.AF_INET.
+ @type af: int
+ @rtype: dns.message.Message object"""
+
+ wire = q.to_wire()
+ s = socket.socket(af, socket.SOCK_STREAM, 0)
+ try:
+ expiration = _compute_expiration(timeout)
+ s.setblocking(0)
+ _connect(s, (where, port))
+
+ l = len(wire)
+
+ # copying the wire into tcpmsg is inefficient, but lets us
+ # avoid writev() or doing a short write that would get pushed
+ # onto the net
+ tcpmsg = struct.pack("!H", l) + wire
+ _net_write(s, tcpmsg, expiration)
+ ldata = _net_read(s, 2, expiration)
+ (l,) = struct.unpack("!H", ldata)
+ wire = _net_read(s, l, expiration)
+ finally:
+ s.close()
+ r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac)
+ if not q.is_response(r):
+ raise BadResponse
+ return r
+
+def xfr(where, zone, rdtype=dns.rdatatype.AXFR, rdclass=dns.rdataclass.IN,
+ timeout=None, port=53, keyring=None, keyname=None, relativize=True,
+ af=socket.AF_INET, lifetime=None):
+ """Return a generator for the responses to a zone transfer.
+
+ @param zone: The name of the zone to transfer
+ @type zone: dns.name.Name object or string
+ @param rdtype: The type of zone transfer. The default is
+ dns.rdatatype.AXFR.
+ @type rdtype: int or string
+ @param rdclass: The class of the zone transfer. The default is
+ dns.rdatatype.IN.
+ @type rdclass: int or string
+ @param timeout: The number of seconds to wait for each response message.
+ If None, the default, wait forever.
+ @type timeout: float
+ @param port: The port to which to send the message. The default is 53.
+ @type port: int
+ @param keyring: The TSIG keyring to use
+ @type keyring: dict
+ @param keyname: The name of the TSIG key to use
+ @type keyname: dns.name.Name object or string
+ @param relativize: If True, all names in the zone will be relativized to
+ the zone origin.
+ @type relativize: bool
+ @param af: the address family to use. The default is socket.AF_INET.
+ @type af: int
+ @param lifetime: The total number of seconds to spend doing the transfer.
+ If None, the default, then there is no limit on the time the transfer may
+ take.
+ @type lifetime: float
+ @rtype: generator of dns.message.Message objects."""
+
+ if isinstance(zone, str):
+ zone = dns.name.from_text(zone)
+ q = dns.message.make_query(zone, rdtype, rdclass)
+ if not keyring is None:
+ q.use_tsig(keyring, keyname)
+ wire = q.to_wire()
+ s = socket.socket(af, socket.SOCK_STREAM, 0)
+ expiration = _compute_expiration(lifetime)
+ _connect(s, (where, port))
+ l = len(wire)
+ tcpmsg = struct.pack("!H", l) + wire
+ _net_write(s, tcpmsg, expiration)
+ done = False
+ seen_soa = False
+ if relativize:
+ origin = zone
+ oname = dns.name.empty
+ else:
+ origin = None
+ oname = zone
+ tsig_ctx = None
+ first = True
+ while not done:
+ mexpiration = _compute_expiration(timeout)
+ if mexpiration is None or mexpiration > expiration:
+ mexpiration = expiration
+ ldata = _net_read(s, 2, mexpiration)
+ (l,) = struct.unpack("!H", ldata)
+ wire = _net_read(s, l, mexpiration)
+ r = dns.message.from_wire(wire, keyring=q.keyring, request_mac=q.mac,
+ xfr=True, origin=origin, tsig_ctx=tsig_ctx,
+ multi=True, first=first)
+ tsig_ctx = r.tsig_ctx
+ first = False
+ if not seen_soa:
+ if not r.answer or r.answer[0].name != oname:
+ raise dns.exception.FormError
+ rrset = r.answer[0]
+ if rrset.rdtype != dns.rdatatype.SOA:
+ raise dns.exception.FormError
+ seen_soa = True
+ if len(r.answer) > 1 and r.answer[-1].name == oname:
+ rrset = r.answer[-1]
+ if rrset.rdtype == dns.rdatatype.SOA:
+ if q.keyring and not r.had_tsig:
+ raise dns.exception.FormError, "missing TSIG"
+ done = True
+ elif r.answer and r.answer[-1].name == oname:
+ rrset = r.answer[-1]
+ if rrset.rdtype == dns.rdatatype.SOA:
+ if q.keyring and not r.had_tsig:
+ raise dns.exception.FormError, "missing TSIG"
+ done = True
+ yield r
+ s.close()
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rcode.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Result Codes."""
+
+import dns.exception
+
+NOERROR = 0
+FORMERR = 1
+SERVFAIL = 2
+NXDOMAIN = 3
+NOTIMP = 4
+REFUSED = 5
+YXDOMAIN = 6
+YXRRSET = 7
+NXRRSET = 8
+NOTAUTH = 9
+NOTZONE = 10
+BADVERS = 16
+
+_by_text = {
+ 'NOERROR' : NOERROR,
+ 'FORMERR' : FORMERR,
+ 'SERVFAIL' : SERVFAIL,
+ 'NXDOMAIN' : NXDOMAIN,
+ 'NOTIMP' : NOTIMP,
+ 'REFUSED' : REFUSED,
+ 'YXDOMAIN' : YXDOMAIN,
+ 'YXRRSET' : YXRRSET,
+ 'NXRRSET' : NXRRSET,
+ 'NOTAUTH' : NOTAUTH,
+ 'NOTZONE' : NOTZONE,
+ 'BADVERS' : BADVERS
+}
+
+# We construct the inverse mapping programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mapping not to be a true inverse.
+
+_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
+
+
+class UnknownRcode(dns.exception.DNSException):
+ """Raised if an rcode is unknown."""
+ pass
+
+def from_text(text):
+ """Convert text into an rcode.
+
+ @param text: the texual rcode
+ @type text: string
+ @raises UnknownRcode: the rcode is unknown
+ @rtype: int
+ """
+
+ if text.isdigit():
+ v = int(text)
+ if v >= 0 and v <= 4095:
+ return v
+ v = _by_text.get(text.upper())
+ if v is None:
+ raise UnknownRcode
+ return v
+
+def from_flags(flags, ednsflags):
+ """Return the rcode value encoded by flags and ednsflags.
+
+ @param flags: the DNS flags
+ @type flags: int
+ @param ednsflags: the EDNS flags
+ @type ednsflags: int
+ @raises ValueError: rcode is < 0 or > 4095
+ @rtype: int
+ """
+
+ value = (flags & 0x000f) | ((ednsflags >> 20) & 0xff0)
+ if value < 0 or value > 4095:
+ raise ValueError, 'rcode must be >= 0 and <= 4095'
+ return value
+
+def to_flags(value):
+ """Return a (flags, ednsflags) tuple which encodes the rcode.
+
+ @param value: the rcode
+ @type value: int
+ @raises ValueError: rcode is < 0 or > 4095
+ @rtype: (int, int) tuple
+ """
+
+ if value < 0 or value > 4095:
+ raise ValueError, 'rcode must be >= 0 and <= 4095'
+ v = value & 0xf
+ ev = long(value & 0xff0) << 20
+ return (v, ev)
+
+def to_text(value):
+ """Convert rcode into text.
+
+ @param value: the rcode
+ @type value: int
+ @rtype: string
+ """
+
+ text = _by_value.get(value)
+ if text is None:
+ text = str(value)
+ return text
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rdata.py,v 1.26 2004/03/19 00:17:27 halley Exp $
+
+"""DNS rdata.
+
+@var _rdata_modules: A dictionary mapping a (rdclass, rdtype) tuple to
+the module which implements that type.
+@type _rdata_modules: dict
+@var _module_prefix: The prefix to use when forming modules names. The
+default is 'dns.rdtypes'. Changing this value will break the library.
+@type _module_prefix: string
+@var _hex_chunk: At most this many octets that will be represented in each
+chunk of hexstring that _hexify() produces before whitespace occurs.
+@type _hex_chunk: int"""
+
+import codecs
+import cStringIO
+
+import dns.exception
+import dns.rdataclass
+import dns.rdatatype
+import dns.tokenizer
+
+_hex_chunksize = 32
+
+def _hexify(data, chunksize=None):
+ """Convert a binary string into its hex encoding, broken up into chunks
+ of I{chunksize} characters separated by a space.
+
+ @param data: the binary string
+ @type data: string
+ @param chunksize: the chunk size. Default is L{dns.rdata._hex_chunksize}
+ @rtype: string
+ """
+
+ if chunksize is None:
+ chunksize = _hex_chunksize
+ hex = data.encode('hex_codec')
+ l = len(hex)
+ if l > chunksize:
+ chunks = []
+ i = 0
+ while i < l:
+ chunks.append(hex[i : i + chunksize])
+ i += chunksize
+ hex = ' '.join(chunks)
+ return hex
+
+_base64_chunksize = 32
+
+def _base64ify(data, chunksize=None):
+ """Convert a binary string into its base64 encoding, broken up into chunks
+ of I{chunksize} characters separated by a space.
+
+ @param data: the binary string
+ @type data: string
+ @param chunksize: the chunk size. Default is
+ L{dns.rdata._base64_chunksize}
+ @rtype: string
+ """
+
+ if chunksize is None:
+ chunksize = _base64_chunksize
+ b64 = data.encode('base64_codec')
+ b64 = b64.replace('\n', '')
+ l = len(b64)
+ if l > chunksize:
+ chunks = []
+ i = 0
+ while i < l:
+ chunks.append(b64[i : i + chunksize])
+ i += chunksize
+ b64 = ' '.join(chunks)
+ return b64
+
+__escaped = {
+ '"' : True,
+ '\\' : True,
+ }
+
+def _escapify(qstring):
+ """Escape the characters in a quoted string which need it.
+
+ @param qstring: the string
+ @type qstring: string
+ @returns: the escaped string
+ @rtype: string
+ """
+
+ text = ''
+ for c in qstring:
+ if c in __escaped:
+ text += '\\' + c
+ elif ord(c) >= 0x20 and ord(c) < 0x7F:
+ text += c
+ else:
+ text += '\\%03d' % ord(c)
+ return text
+
+def _truncate_bitmap(what):
+ """Determine the index of greatest byte that isn't all zeros, and
+ return the bitmap that contains all the bytes less than that index.
+
+ @param what: a string of octets representing a bitmap.
+ @type what: string
+ @rtype: string
+ """
+
+ for i in xrange(len(what) - 1, -1, -1):
+ if what[i] != '\x00':
+ break
+ return ''.join(what[0 : i + 1])
+
+class Rdata(object):
+ """Base class for all DNS rdata types.
+ """
+
+ __slots__ = ['rdclass', 'rdtype']
+
+ def __init__(self, rdclass, rdtype):
+ """Initialize an rdata.
+ @param rdclass: The rdata class
+ @type rdclass: int
+ @param rdtype: The rdata type
+ @type rdtype: int
+ """
+
+ self.rdclass = rdclass
+ self.rdtype = rdtype
+
+ def covers(self):
+ """DNS SIG/RRSIG rdatas apply to a specific type; this type is
+ returned by the covers() function. If the rdata type is not
+ SIG or RRSIG, dns.rdatatype.NONE is returned. This is useful when
+ creating rdatasets, allowing the rdataset to contain only RRSIGs
+ of a particular type, e.g. RRSIG(NS).
+ @rtype: int
+ """
+
+ return dns.rdatatype.NONE
+
+ def extended_rdatatype(self):
+ """Return a 32-bit type value, the least significant 16 bits of
+ which are the ordinary DNS type, and the upper 16 bits of which are
+ the "covered" type, if any.
+ @rtype: int
+ """
+
+ return self.covers() << 16 | self.rdtype
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ """Convert an rdata to text format.
+ @rtype: string
+ """
+ raise NotImplementedError
+
+ def to_wire(self, file, compress = None, origin = None):
+ """Convert an rdata to wire format.
+ @rtype: string
+ """
+
+ raise NotImplementedError
+
+ def __repr__(self):
+ covers = self.covers()
+ if covers == dns.rdatatype.NONE:
+ ctext = ''
+ else:
+ ctext = '(' + dns.rdatatype.to_text(covers) + ')'
+ return '<DNS ' + dns.rdataclass.to_text(self.rdclass) + ' ' + \
+ dns.rdatatype.to_text(self.rdtype) + ctext + ' rdata: ' + \
+ str(self) + '>'
+
+ def __str__(self):
+ return self.to_text()
+
+ def _cmp(self, other):
+ """Compare an rdata with another rdata of the same rdtype and
+ rdclass. Return < 0 if self < other in the DNSSEC ordering,
+ 0 if self == other, and > 0 if self > other.
+ """
+
+ raise NotImplementedError
+
+ def __eq__(self, other):
+ if not isinstance(other, Rdata):
+ return False
+ if self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return False
+ return self._cmp(other) == 0
+
+ def __ne__(self, other):
+ if not isinstance(other, Rdata):
+ return True
+ if self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return True
+ return self._cmp(other) != 0
+
+ def __lt__(self, other):
+ if not isinstance(other, Rdata) or \
+ self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return NotImplemented
+ return self._cmp(other) < 0
+
+ def __le__(self, other):
+ if not isinstance(other, Rdata) or \
+ self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return NotImplemented
+ return self._cmp(other) <= 0
+
+ def __ge__(self, other):
+ if not isinstance(other, Rdata) or \
+ self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return NotImplemented
+ return self._cmp(other) >= 0
+
+ def __gt__(self, other):
+ if not isinstance(other, Rdata) or \
+ self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype:
+ return NotImplemented
+ return self._cmp(other) > 0
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ """Build an rdata object from text format.
+
+ @param rdclass: The rdata class
+ @type rdclass: int
+ @param rdtype: The rdata type
+ @type rdtype: int
+ @param tok: The tokenizer
+ @type tok: dns.tokenizer.Tokenizer
+ @param origin: The origin to use for relative names
+ @type origin: dns.name.Name
+ @param relativize: should names be relativized?
+ @type origin: bool
+ @rtype: dns.rdata.Rdata instance
+ """
+
+ raise NotImplementedError
+
+ from_text = classmethod(from_text)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ """Build an rdata object from wire format
+
+ @param rdclass: The rdata class
+ @type rdclass: int
+ @param rdtype: The rdata type
+ @type rdtype: int
+ @param wire: The wire-format message
+ @type wire: string
+ @param current: The offet in wire of the beginning of the rdata.
+ @type current: int
+ @param rdlen: The length of the wire-format rdata
+ @type rdlen: int
+ @param origin: The origin to use for relative names
+ @type origin: dns.name.Name
+ @rtype: dns.rdata.Rdata instance
+ """
+
+ raise NotImplementedError
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ """Convert any domain names in the rdata to the specified
+ relativization.
+ """
+
+ pass
+
+
+class GenericRdata(Rdata):
+ """Generate Rdata Class
+
+ This class is used for rdata types for which we have no better
+ implementation. It implements the DNS "unknown RRs" scheme.
+ """
+
+ __slots__ = ['data']
+
+ def __init__(self, rdclass, rdtype, data):
+ super(GenericRdata, self).__init__(rdclass, rdtype)
+ self.data = data
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return r'\# %d ' % len(self.data) + _hexify(self.data)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ if tok.get_string() != r'\#':
+ raise dns.exception.SyntaxError, \
+ r'generic rdata does not start with \#'
+ length = tok.get_int()
+ chunks = []
+ while 1:
+ (ttype, value) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ chunks.append(value)
+ hex = ''.join(chunks)
+ data = hex.decode('hex_codec')
+ if len(data) != length:
+ raise dns.exception.SyntaxError, \
+ 'generic rdata hex data has wrong length'
+ return cls(rdclass, rdtype, data)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ file.write(self.data)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ return cls(rdclass, rdtype, wire[current : current + rdlen])
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ return cmp(self.data, other.data)
+
+_rdata_modules = {}
+_module_prefix = 'dns.rdtypes'
+
+def get_rdata_class(rdclass, rdtype):
+
+ def import_module(name):
+ mod = __import__(name)
+ components = name.split('.')
+ for comp in components[1:]:
+ mod = getattr(mod, comp)
+ return mod
+
+ mod = _rdata_modules.get((rdclass, rdtype))
+ rdclass_text = dns.rdataclass.to_text(rdclass)
+ rdtype_text = dns.rdatatype.to_text(rdtype)
+ rdtype_text = rdtype_text.replace('-', '_')
+ if not mod:
+ mod = _rdata_modules.get((dns.rdatatype.ANY, rdtype))
+ if not mod:
+ try:
+ mod = import_module('.'.join([_module_prefix,
+ rdclass_text, rdtype_text]))
+ _rdata_modules[(rdclass, rdtype)] = mod
+ except ImportError:
+ try:
+ mod = import_module('.'.join([_module_prefix,
+ 'ANY', rdtype_text]))
+ _rdata_modules[(dns.rdataclass.ANY, rdtype)] = mod
+ except ImportError:
+ mod = None
+ if mod:
+ cls = getattr(mod, rdtype_text)
+ else:
+ cls = GenericRdata
+ return cls
+
+def from_text(rdclass, rdtype, tok, origin = None, relativize = True):
+ """Build an rdata object from text format.
+
+ This function attempts to dynamically load a class which
+ implements the specified rdata class and type. If there is no
+ class-and-type-specific implementation, the GenericRdata class
+ is used.
+
+ Once a class is chosen, its from_text() class method is called
+ with the parameters to this function.
+
+ @param rdclass: The rdata class
+ @type rdclass: int
+ @param rdtype: The rdata type
+ @type rdtype: int
+ @param tok: The tokenizer
+ @type tok: dns.tokenizer.Tokenizer
+ @param origin: The origin to use for relative names
+ @type origin: dns.name.Name
+ @param relativize: Should names be relativized?
+ @type relativize: bool
+ @rtype: dns.rdata.Rdata instance"""
+
+ if isinstance(tok, str):
+ tok = dns.tokenizer.Tokenizer(tok)
+ cls = get_rdata_class(rdclass, rdtype)
+ return cls.from_text(rdclass, rdtype, tok, origin, relativize)
+
+def from_wire(rdclass, rdtype, wire, current, rdlen, origin = None):
+ """Build an rdata object from wire format
+
+ This function attempts to dynamically load a class which
+ implements the specified rdata class and type. If there is no
+ class-and-type-specific implementation, the GenericRdata class
+ is used.
+
+ Once a class is chosen, its from_wire() class method is called
+ with the parameters to this function.
+
+ @param rdclass: The rdata class
+ @type rdclass: int
+ @param rdtype: The rdata type
+ @type rdtype: int
+ @param wire: The wire-format message
+ @type wire: string
+ @param current: The offet in wire of the beginning of the rdata.
+ @type current: int
+ @param rdlen: The length of the wire-format rdata
+ @type rdlen: int
+ @param origin: The origin to use for relative names
+ @type origin: dns.name.Name
+ @rtype: dns.rdata.Rdata instance"""
+
+ cls = get_rdata_class(rdclass, rdtype)
+ return cls.from_wire(rdclass, rdtype, wire, current, rdlen, origin)
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rdataclass.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Rdata Classes.
+
+@var _by_text: The rdata class textual name to value mapping
+@type _by_text: dict
+@var _by_value: The rdata class value to textual name mapping
+@type _by_value: dict
+@var _metaclasses: If an rdataclass is a metaclass, there will be a mapping
+whose key is the rdatatype value and whose value is True in this dictionary.
+@type _metaclasses: dict"""
+
+import re
+
+import dns.exception
+
+RESERVED0 = 0
+IN = 1
+CH = 3
+HS = 4
+NONE = 254
+ANY = 255
+
+_by_text = {
+ 'RESERVED0' : RESERVED0,
+ 'IN' : IN,
+ 'CH' : CH,
+ 'HS' : HS,
+ 'NONE' : NONE,
+ 'ANY' : ANY
+ }
+
+# We construct the inverse mapping programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mapping not to be true inverse.
+
+_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
+
+# Now that we've built the inverse map, we can add class aliases to
+# the _by_text mapping.
+
+_by_text.update({
+ 'INTERNET' : IN,
+ 'CHAOS' : CH,
+ 'HESIOD' : HS
+ })
+
+_metaclasses = {
+ NONE : True,
+ ANY : True
+ }
+
+_unknown_class_pattern = re.compile('CLASS([0-9]+)$', re.I);
+
+class UnknownRdataclass(dns.exception.DNSException):
+ """Raised when a class is unknown."""
+ pass
+
+def from_text(text):
+ """Convert text into a DNS rdata class value.
+ @param text: the text
+ @type text: string
+ @rtype: int
+ @raises dns.rdataclass.UnknownRdataClass: the class is unknown
+ @raises ValueError: the rdata class value is not >= 0 and <= 65535
+ """
+
+ value = _by_text.get(text.upper())
+ if value is None:
+ match = _unknown_class_pattern.match(text)
+ if match == None:
+ raise UnknownRdataclass
+ value = int(match.group(1))
+ if value < 0 or value > 65535:
+ raise ValueError, "class must be between >= 0 and <= 65535"
+ return value
+
+def to_text(value):
+ """Convert a DNS rdata class to text.
+ @param value: the rdata class value
+ @type value: int
+ @rtype: string
+ @raises ValueError: the rdata class value is not >= 0 and <= 65535
+ """
+
+ if value < 0 or value > 65535:
+ raise ValueError, "class must be between >= 0 and <= 65535"
+ text = _by_value.get(value)
+ if text is None:
+ text = 'CLASS' + `value`
+ return text
+
+def is_metaclass(rdclass):
+ """True if the class is a metaclass.
+ @param rdclass: the rdata class
+ @type rdclass: int
+ @rtype: bool"""
+
+ if _metaclasses.has_key(rdclass):
+ return True
+ return False
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rdataset.py,v 1.23 2004/03/19 00:17:27 halley Exp $
+
+"""DNS rdatasets (an rdataset is a set of rdatas of a given type and class)"""
+
+import random
+import StringIO
+import struct
+import sys
+
+import dns.exception
+import dns.rdatatype
+import dns.rdataclass
+import dns.rdata
+import dns.set
+
+# define SimpleSet here for backwards compatibility
+SimpleSet = dns.set.Set
+
+class DifferingCovers(dns.exception.DNSException):
+ """Raised if an attempt is made to add a SIG/RRSIG whose covered type
+ is not the same as that of the other rdatas in the rdataset."""
+ pass
+
+class IncompatibleTypes(dns.exception.DNSException):
+ """Raised if an attempt is made to add rdata of an incompatible type."""
+ pass
+
+class Rdataset(dns.set.Set):
+ """A DNS rdataset.
+
+ @ivar rdclass: The class of the rdataset
+ @type rdclass: int
+ @ivar rdtype: The type of the rdataset
+ @type rdtype: int
+ @ivar covers: The covered type. Usually this value is
+ dns.rdatatype.NONE, but if the rdtype is dns.rdatatype.SIG or
+ dns.rdatatype.RRSIG, then the covers value will be the rdata
+ type the SIG/RRSIG covers. The library treats the SIG and RRSIG
+ types as if they were a family of
+ types, e.g. RRSIG(A), RRSIG(NS), RRSIG(SOA). This makes RRSIGs much
+ easier to work with than if RRSIGs covering different rdata
+ types were aggregated into a single RRSIG rdataset.
+ @type covers: int
+ @ivar ttl: The DNS TTL (Time To Live) value
+ @type ttl: int
+ """
+
+ __slots__ = ['rdclass', 'rdtype', 'covers', 'ttl']
+
+ def __init__(self, rdclass, rdtype, covers=dns.rdatatype.NONE):
+ """Create a new rdataset of the specified class and type.
+
+ @see: the description of the class instance variables for the
+ meaning of I{rdclass} and I{rdtype}"""
+
+ super(Rdataset, self).__init__()
+ self.rdclass = rdclass
+ self.rdtype = rdtype
+ self.covers = covers
+ self.ttl = 0
+
+ def _clone(self):
+ obj = super(Rdataset, self)._clone()
+ obj.rdclass = self.rdclass
+ obj.rdtype = self.rdtype
+ obj.covers = self.covers
+ obj.ttl = self.ttl
+ return obj
+
+ def update_ttl(self, ttl):
+ """Set the TTL of the rdataset to be the lesser of the set's current
+ TTL or the specified TTL. If the set contains no rdatas, set the TTL
+ to the specified TTL.
+ @param ttl: The TTL
+ @type ttl: int"""
+
+ if len(self) == 0:
+ self.ttl = ttl
+ elif ttl < self.ttl:
+ self.ttl = ttl
+
+ def add(self, rd, ttl=None):
+ """Add the specified rdata to the rdataset.
+
+ If the optional I{ttl} parameter is supplied, then
+ self.update_ttl(ttl) will be called prior to adding the rdata.
+
+ @param rd: The rdata
+ @type rd: dns.rdata.Rdata object
+ @param ttl: The TTL
+ @type ttl: int"""
+
+ #
+ # If we're adding a signature, do some special handling to
+ # check that the signature covers the same type as the
+ # other rdatas in this rdataset. If this is the first rdata
+ # in the set, initialize the covers field.
+ #
+ if self.rdclass != rd.rdclass or self.rdtype != rd.rdtype:
+ raise IncompatibleTypes
+ if not ttl is None:
+ self.update_ttl(ttl)
+ if self.rdtype == dns.rdatatype.RRSIG or \
+ self.rdtype == dns.rdatatype.SIG:
+ covers = rd.covers()
+ if len(self) == 0 and self.covers == dns.rdatatype.NONE:
+ self.covers = covers
+ elif self.covers != covers:
+ raise DifferingCovers
+ if dns.rdatatype.is_singleton(rd.rdtype) and len(self) > 0:
+ self.clear()
+ super(Rdataset, self).add(rd)
+
+ def union_update(self, other):
+ self.update_ttl(other.ttl)
+ super(Rdataset, self).union_update(other)
+
+ def intersection_update(self, other):
+ self.update_ttl(other.ttl)
+ super(Rdataset, self).intersection_update(other)
+
+ def update(self, other):
+ """Add all rdatas in other to self.
+
+ @param other: The rdataset from which to update
+ @type other: dns.rdataset.Rdataset object"""
+
+ self.update_ttl(other.ttl)
+ super(Rdataset, self).update(other)
+
+ def __repr__(self):
+ if self.covers == 0:
+ ctext = ''
+ else:
+ ctext = '(' + dns.rdatatype.to_text(self.covers) + ')'
+ return '<DNS ' + dns.rdataclass.to_text(self.rdclass) + ' ' + \
+ dns.rdatatype.to_text(self.rdtype) + ctext + ' rdataset>'
+
+ def __str__(self):
+ return self.to_text()
+
+ def __eq__(self, other):
+ """Two rdatasets are equal if they have the same class, type, and
+ covers, and contain the same rdata.
+ @rtype: bool"""
+
+ if not isinstance(other, Rdataset):
+ return False
+ if self.rdclass != other.rdclass or \
+ self.rdtype != other.rdtype or \
+ self.covers != other.covers:
+ return False
+ return super(Rdataset, self).__eq__(other)
+
+ def __ne__(self, other):
+ return not self.__eq__(other)
+
+ def to_text(self, name=None, origin=None, relativize=True,
+ override_rdclass=None, **kw):
+ """Convert the rdataset into DNS master file format.
+
+ @see: L{dns.name.Name.choose_relativity} for more information
+ on how I{origin} and I{relativize} determine the way names
+ are emitted.
+
+ Any additional keyword arguments are passed on to the rdata
+ to_text() method.
+
+ @param name: If name is not None, emit a RRs with I{name} as
+ the owner name.
+ @type name: dns.name.Name object
+ @param origin: The origin for relative names, or None.
+ @type origin: dns.name.Name object
+ @param relativize: True if names should names be relativized
+ @type relativize: bool"""
+ if not name is None:
+ name = name.choose_relativity(origin, relativize)
+ ntext = str(name)
+ pad = ' '
+ else:
+ ntext = ''
+ pad = ''
+ s = StringIO.StringIO()
+ if not override_rdclass is None:
+ rdclass = override_rdclass
+ else:
+ rdclass = self.rdclass
+ if len(self) == 0:
+ #
+ # Empty rdatasets are used for the question section, and in
+ # some dynamic updates, so we don't need to print out the TTL
+ # (which is meaningless anyway).
+ #
+ print >> s, '%s%s%s %s' % (ntext, pad,
+ dns.rdataclass.to_text(rdclass),
+ dns.rdatatype.to_text(self.rdtype))
+ else:
+ for rd in self:
+ print >> s, '%s%s%d %s %s %s' % \
+ (ntext, pad, self.ttl, dns.rdataclass.to_text(rdclass),
+ dns.rdatatype.to_text(self.rdtype),
+ rd.to_text(origin=origin, relativize=relativize, **kw))
+ #
+ # We strip off the final \n for the caller's convenience in printing
+ #
+ return s.getvalue()[:-1]
+
+ def to_wire(self, name, file, compress=None, origin=None,
+ override_rdclass=None, want_shuffle=True):
+ """Convert the rdataset to wire format.
+
+ @param name: The owner name of the RRset that will be emitted
+ @type name: dns.name.Name object
+ @param file: The file to which the wire format data will be appended
+ @type file: file
+ @param compress: The compression table to use; the default is None.
+ @type compress: dict
+ @param origin: The origin to be appended to any relative names when
+ they are emitted. The default is None.
+ @returns: the number of records emitted
+ @rtype: int
+ """
+
+ if not override_rdclass is None:
+ rdclass = override_rdclass
+ want_shuffle = False
+ else:
+ rdclass = self.rdclass
+ file.seek(0, 2)
+ if len(self) == 0:
+ name.to_wire(file, compress, origin)
+ stuff = struct.pack("!HHIH", self.rdtype, rdclass, 0, 0)
+ file.write(stuff)
+ return 1
+ else:
+ if want_shuffle:
+ l = list(self)
+ random.shuffle(l)
+ else:
+ l = self
+ for rd in l:
+ name.to_wire(file, compress, origin)
+ stuff = struct.pack("!HHIH", self.rdtype, rdclass,
+ self.ttl, 0)
+ file.write(stuff)
+ start = file.tell()
+ rd.to_wire(file, compress, origin)
+ end = file.tell()
+ assert end - start < 65536
+ file.seek(start - 2)
+ stuff = struct.pack("!H", end - start)
+ file.write(stuff)
+ file.seek(0, 2)
+ return len(self)
+
+ def match(self, rdclass, rdtype, covers):
+ """Returns True if this rdataset matches the specified class, type,
+ and covers"""
+ if self.rdclass == rdclass and \
+ self.rdtype == rdtype and \
+ self.covers == covers:
+ return True
+ return False
+
+def from_text_list(rdclass, rdtype, ttl, text_rdatas):
+ """Create an rdataset with the specified class, type, and TTL, and with
+ the specified list of rdatas in text format.
+
+ @rtype: dns.rdataset.Rdataset object
+ """
+
+ if isinstance(rdclass, str):
+ rdclass = dns.rdataclass.from_text(rdclass)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ r = Rdataset(rdclass, rdtype)
+ r.update_ttl(ttl)
+ for t in text_rdatas:
+ rd = dns.rdata.from_text(r.rdclass, r.rdtype, t)
+ r.add(rd)
+ return r
+
+def from_text(rdclass, rdtype, ttl, *text_rdatas):
+ """Create an rdataset with the specified class, type, and TTL, and with
+ the specified rdatas in text format.
+
+ @rtype: dns.rdataset.Rdataset object
+ """
+
+ return from_text_list(rdclass, rdtype, ttl, text_rdatas)
+
+def from_rdata_list(ttl, rdatas):
+ """Create an rdataset with the specified TTL, and with
+ the specified list of rdata objects.
+
+ @rtype: dns.rdataset.Rdataset object
+ """
+
+ if len(rdatas) == 0:
+ raise ValueError, "rdata list must not be empty"
+ r = None
+ for rd in rdatas:
+ if r is None:
+ r = Rdataset(rd.rdclass, rd.rdtype)
+ r.update_ttl(ttl)
+ first_time = False
+ r.add(rd)
+ return r
+
+def from_rdata(ttl, *rdatas):
+ """Create an rdataset with the specified TTL, and with
+ the specified rdata objects.
+
+ @rtype: dns.rdataset.Rdataset object
+ """
+
+ return from_rdata_list(ttl, rdatas)
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rdatatype.py,v 1.15 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Rdata Types.
+
+@var _by_text: The rdata type textual name to value mapping
+@type _by_text: dict
+@var _by_value: The rdata type value to textual name mapping
+@type _by_value: dict
+@var _metatypes: If an rdatatype is a metatype, there will be a mapping
+whose key is the rdatatype value and whose value is True in this dictionary.
+@type _metatypes: dict
+@var _singletons: If an rdatatype is a singleton, there will be a mapping
+whose key is the rdatatype value and whose value is True in this dictionary.
+@type _singletons: dict"""
+
+import re
+
+import dns.exception
+
+NONE = 0
+A = 1
+NS = 2
+MD = 3
+MF = 4
+CNAME = 5
+SOA = 6
+MB = 7
+MG = 8
+MR = 9
+NULL = 10
+WKS = 11
+PTR = 12
+HINFO = 13
+MINFO = 14
+MX = 15
+TXT = 16
+RP = 17
+AFSDB = 18
+X25 = 19
+ISDN = 20
+RT = 21
+NSAP = 22
+NSAP_PTR = 23
+SIG = 24
+KEY = 25
+PX = 26
+GPOS = 27
+AAAA = 28
+LOC = 29
+NXT = 30
+SRV = 33
+NAPTR = 35
+KX = 36
+CERT = 37
+A6 = 38
+DNAME = 39
+OPT = 41
+APL = 42
+DS = 43
+RRSIG = 46
+NSEC = 47
+DNSKEY = 48
+UNSPEC = 103
+TKEY = 249
+TSIG = 250
+IXFR = 251
+AXFR = 252
+MAILB = 253
+MAILA = 254
+ANY = 255
+
+_by_text = {
+ 'NONE' : NONE,
+ 'A' : A,
+ 'NS' : NS,
+ 'MD' : MD,
+ 'MF' : MF,
+ 'CNAME' : CNAME,
+ 'SOA' : SOA,
+ 'MB' : MB,
+ 'MG' : MG,
+ 'MR' : MR,
+ 'NULL' : NULL,
+ 'WKS' : WKS,
+ 'PTR' : PTR,
+ 'HINFO' : HINFO,
+ 'MINFO' : MINFO,
+ 'MX' : MX,
+ 'TXT' : TXT,
+ 'RP' : RP,
+ 'AFSDB' : AFSDB,
+ 'X25' : X25,
+ 'ISDN' : ISDN,
+ 'RT' : RT,
+ 'NSAP' : NSAP,
+ 'NSAP-PTR' : NSAP_PTR,
+ 'SIG' : SIG,
+ 'KEY' : KEY,
+ 'PX' : PX,
+ 'GPOS' : GPOS,
+ 'AAAA' : AAAA,
+ 'LOC' : LOC,
+ 'NXT' : NXT,
+ 'SRV' : SRV,
+ 'NAPTR' : NAPTR,
+ 'KX' : KX,
+ 'CERT' : CERT,
+ 'A6' : A6,
+ 'DNAME' : DNAME,
+ 'OPT' : OPT,
+ 'APL' : APL,
+ 'DS' : DS,
+ 'RRSIG' : RRSIG,
+ 'NSEC' : NSEC,
+ 'DNSKEY' : DNSKEY,
+ 'UNSPEC' : UNSPEC,
+ 'TKEY' : TKEY,
+ 'TSIG' : TSIG,
+ 'IXFR' : IXFR,
+ 'AXFR' : AXFR,
+ 'MAILB' : MAILB,
+ 'MAILA' : MAILA,
+ 'ANY' : ANY
+ }
+
+# We construct the inverse mapping programmatically to ensure that we
+# cannot make any mistakes (e.g. omissions, cut-and-paste errors) that
+# would cause the mapping not to be true inverse.
+
+_by_value = dict([(y, x) for x, y in _by_text.iteritems()])
+
+
+_metatypes = {
+ OPT : True
+ }
+
+_singletons = {
+ SOA : True,
+ NXT : True,
+ DNAME : True,
+ # CNAME is technically a singleton, but we allow multiple CNAMEs.
+ }
+
+_unknown_type_pattern = re.compile('TYPE([0-9]+)$', re.I);
+
+class UnknownRdatatype(dns.exception.DNSException):
+ """Raised if a type is unknown."""
+ pass
+
+def from_text(text):
+ """Convert text into a DNS rdata type value.
+ @param text: the text
+ @type text: string
+ @raises dns.rdatatype.UnknownRdatatype: the type is unknown
+ @raises ValueError: the rdata type value is not >= 0 and <= 65535
+ @rtype: int"""
+
+ value = _by_text.get(text.upper())
+ if value is None:
+ match = _unknown_type_pattern.match(text)
+ if match == None:
+ raise UnknownRdatatype
+ value = int(match.group(1))
+ if value < 0 or value > 65535:
+ raise ValueError, "type must be between >= 0 and <= 65535"
+ return value
+
+def to_text(value):
+ """Convert a DNS rdata type to text.
+ @param value: the rdata type value
+ @type value: int
+ @raises ValueError: the rdata type value is not >= 0 and <= 65535
+ @rtype: string"""
+
+ if value < 0 or value > 65535:
+ raise ValueError, "type must be between >= 0 and <= 65535"
+ text = _by_value.get(value)
+ if text is None:
+ text = 'TYPE' + `value`
+ return text
+
+def is_metatype(rdtype):
+ """True if the type is a metatype.
+ @param rdtype: the type
+ @type rdtype: int
+ @rtype: bool"""
+
+ if rdtype >= TKEY and rdtype <= ANY or _metatypes.has_key(rdtype):
+ return True
+ return False
+
+def is_singleton(rdtype):
+ """True if the type is a singleton.
+ @param rdtype: the type
+ @type rdtype: int
+ @rtype: bool"""
+
+ if _singletons.has_key(rdtype):
+ return True
+ return False
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:26 2004 4754.29
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:44 2004 4756.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:44 2004 4756.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:44 2004 4756.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:44 2004 4756.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:44 2004 4756.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:43 2004 4756.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.7
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.8
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.9
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.10
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.11
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.12
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.13
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.14
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.15
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.16
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.17
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.18
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.19
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.20
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.21
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.22
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:56 2004 4758.23
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: AFSDB.py,v 1.6 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.mxbase
+
+class AFSDB(dns.rdtypes.mxbase.UncompressedMX):
+ """AFSDB record
+
+ @ivar subtype: the subtype value
+ @type subtype: int
+ @ivar hostname: the hostname name
+ @type hostname: dns.name.Name object"""
+
+ # Use the property mechanism to make "subtype" an alias for the
+ # "preference" attribute, and "hostname" an alias for the "exchange"
+ # attribute.
+ #
+ # This lets us inherit the UncompressedMX implementation but lets
+ # the caller use appropriate attribute names for the rdata type.
+ #
+ # We probably lose some performance vs. a cut-and-paste
+ # implementation, but this way we don't copy code, and that's
+ # good.
+
+ def get_subtype(self):
+ return self.preference
+
+ def set_subtype(self, subtype):
+ self.preference = subtype
+
+ subtype = property(get_subtype, set_subtype)
+
+ def get_hostname(self):
+ return self.exchange
+
+ def set_hostname(self, hostname):
+ self.exchange = hostname
+
+ hostname = property(get_hostname, set_hostname)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: CERT.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import struct
+
+import dns.exception
+import dns.dnssec
+import dns.rdata
+import dns.tokenizer
+
+_ctype_by_value = {
+ 1 : 'PKIX',
+ 2 : 'SPKI',
+ 3 : 'PGP',
+ 253 : 'URI',
+ 254 : 'OID',
+ }
+
+_ctype_by_name = {
+ 'PKIX' : 1,
+ 'SPKI' : 2,
+ 'PGP' : 3,
+ 'URI' : 253,
+ 'OID' : 254,
+ }
+
+def _ctype_from_text(what):
+ v = _ctype_by_name.get(what)
+ if not v is None:
+ return v
+ return int(what)
+
+def _ctype_to_text(what):
+ v = _ctype_by_value.get(what)
+ if not v is None:
+ return v
+ return str(what)
+
+class CERT(dns.rdata.Rdata):
+ """CERT record
+
+ @ivar certificate_type: certificate type
+ @type certificate_type: int
+ @ivar key_tag: key tag
+ @type key_tag: int
+ @ivar algorithm: algorithm
+ @type algorithm: int
+ @ivar certificate: the certificate or CRL
+ @type certificate: string
+ @see: RFC 2538"""
+
+ __slots__ = ['certificate_type', 'key_tag', 'algorithm', 'certificate']
+
+ def __init__(self, rdclass, rdtype, certificate_type, key_tag, algorithm,
+ certificate):
+ super(CERT, self).__init__(rdclass, rdtype)
+ self.certificate_type = certificate_type
+ self.key_tag = key_tag
+ self.algorithm = algorithm
+ self.certificate = certificate
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ certificate_type = _ctype_to_text(self.certificate_type)
+ return "%s %d %s %s" % (certificate_type, self.key_tag,
+ dns.dnssec.algorithm_to_text(self.algorithm),
+ dns.rdata._base64ify(self.certificate))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ certificate_type = _ctype_from_text(tok.get_string())
+ key_tag = tok.get_uint16()
+ algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
+ if algorithm < 0 or algorithm > 255:
+ raise dns.exception.SyntaxError, "bad algorithm type"
+ chunks = []
+ while 1:
+ t = tok.get()
+ if t[0] == dns.tokenizer.EOL or t[0] == dns.tokenizer.EOF:
+ break
+ if t[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ chunks.append(t[1])
+ b64 = ''.join(chunks)
+ certificate = b64.decode('base64_codec')
+ return cls(rdclass, rdtype, certificate_type, key_tag,
+ algorithm, certificate)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ prefix = struct.pack("!HHB", self.certificate_type, self.key_tag,
+ self.algorithm)
+ file.write(prefix)
+ file.write(self.certificate)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ prefix = wire[current : current + 5]
+ current += 5
+ rdlen -= 5
+ if rdlen < 0:
+ raise dns.exception.FormError
+ (certificate_type, key_tag, algorithm) = struct.unpack("!HHB", prefix)
+ certificate = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, certificate_type, key_tag, algorithm,
+ certificate)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ f = cStringIO.StringIO()
+ self.to_wire(f)
+ wire1 = f.getvalue()
+ f.seek(0)
+ f.truncate()
+ other.to_wire(f)
+ wire2 = f.getvalue()
+ f.close()
+
+ return cmp(wire1, wire2)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: CNAME.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.nsbase
+
+class CNAME(dns.rdtypes.nsbase.NSBase):
+ """CNAME record
+
+ Note: although CNAME is officially a singleton type, dnspython allows
+ non-singleton CNAME rdatasets because such sets have been commonly
+ used by BIND and other nameservers for load balancing."""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: DNAME.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.nsbase
+
+class DNAME(dns.rdtypes.nsbase.UncompressedNS):
+ """DNAME record"""
+ pass
--- /dev/null
+# Copyright (C) 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: DNSKEY.py,v 1.1 2004/03/19 00:06:37 halley Exp $
+
+import dns.rdtypes.keybase
+
+class DNSKEY(dns.rdtypes.keybase.KEYBase):
+ """DNSKEY record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: DS.py,v 1.6 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.rdata
+import dns.rdatatype
+
+class DS(dns.rdata.Rdata):
+ """DS record
+
+ @ivar key_tag: the key tag
+ @type key_tag: int
+ @ivar algorithm: the algorithm
+ @type algorithm: int
+ @ivar digest_type: the digest type
+ @type digest_type: int
+ @ivar digest: the digest
+ @type digest: int
+ @see: draft-ietf-dnsext-delegation-signer-14.txt"""
+
+ __slots__ = ['key_tag', 'algorithm', 'digest_type', 'digest']
+
+ def __init__(self, rdclass, rdtype, key_tag, algorithm, digest_type,
+ digest):
+ super(DS, self).__init__(rdclass, rdtype)
+ self.key_tag = key_tag
+ self.algorithm = algorithm
+ self.digest_type = digest_type
+ self.digest = digest
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '%d %d %d %s' % (self.key_tag, self.algorithm,
+ self.digest_type,
+ dns.rdata._hexify(self.digest,
+ chunksize=128))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ key_tag = tok.get_uint16()
+ algorithm = tok.get_uint8()
+ digest_type = tok.get_uint8()
+ digest = tok.get_string()
+ digest = digest.decode('hex_codec')
+ tok.get_eol()
+ return cls(rdclass, rdtype, key_tag, algorithm, digest_type,
+ digest)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ header = struct.pack("!HBB", self.key_tag, self.algorithm,
+ self.digest_type)
+ file.write(header)
+ file.write(self.digest)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ header = struct.unpack("!HBB", wire[current : current + 4])
+ current += 4
+ rdlen -= 4
+ digest = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, header[0], header[1], header[2], digest)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ hs = struct.pack("!HBB", self.key_tag, self.algorithm,
+ self.digest_type)
+ ho = struct.pack("!HBB", other.key_tag, other.algorithm,
+ other.digest_type)
+ v = cmp(hs, ho)
+ if v == 0:
+ v = cmp(self.digest, other.digest)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: GPOS.py,v 1.9 2004/03/19 00:17:27 halley Exp $
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+def _validate_float_string(what):
+ if what[0] == '-' or what[0] == '+':
+ what = what[1:]
+ if what.isdigit():
+ return
+ (left, right) = what.split('.')
+ if left == '' and right == '':
+ raise dns.exception.FormError
+ if not left == '' and not left.isdigit():
+ raise dns.exception.FormError
+ if not right == '' and not right.isdigit():
+ raise dns.exception.FormError
+
+class GPOS(dns.rdata.Rdata):
+ """GPOS record
+
+ @ivar latitude: latitude
+ @type latitude: string
+ @ivar longitude: longitude
+ @type longitude: string
+ @ivar altitude: altitude
+ @type altitude: string
+ @see: RFC 1712"""
+
+ __slots__ = ['latitude', 'longitude', 'altitude']
+
+ def __init__(self, rdclass, rdtype, latitude, longitude, altitude):
+ super(GPOS, self).__init__(rdclass, rdtype)
+ if isinstance(latitude, float) or \
+ isinstance(latitude, int) or \
+ isinstance(latitude, long):
+ latitude = str(latitude)
+ if isinstance(longitude, float) or \
+ isinstance(longitude, int) or \
+ isinstance(longitude, long):
+ longitude = str(longitude)
+ if isinstance(altitude, float) or \
+ isinstance(altitude, int) or \
+ isinstance(altitude, long):
+ altitude = str(altitude)
+ _validate_float_string(latitude)
+ _validate_float_string(longitude)
+ _validate_float_string(altitude)
+ self.latitude = latitude
+ self.longitude = longitude
+ self.altitude = altitude
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '%s %s %s' % (self.latitude, self.longitude, self.altitude)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ latitude = tok.get_string()
+ longitude = tok.get_string()
+ altitude = tok.get_string()
+ tok.get_eol()
+ return cls(rdclass, rdtype, latitude, longitude, altitude)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ l = len(self.latitude)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.latitude)
+ l = len(self.longitude)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.longitude)
+ l = len(self.altitude)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.altitude)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen:
+ raise dns.exception.FormError
+ latitude = wire[current : current + l]
+ current += l
+ rdlen -= l
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen:
+ raise dns.exception.FormError
+ longitude = wire[current : current + l]
+ current += l
+ rdlen -= l
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l != rdlen:
+ raise dns.exception.FormError
+ altitude = wire[current : current + l]
+ return cls(rdclass, rdtype, latitude, longitude, altitude)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ v = cmp(self.latitude, other.latitude)
+ if v == 0:
+ v = cmp(self.longitude, other.longitude)
+ if v == 0:
+ v = cmp(self.altitude, other.altitude)
+ return v
+
+ def _get_float_latitude(self):
+ return float(self.latitude)
+
+ def _set_float_latitude(self, value):
+ self.latitude = str(value)
+
+ float_latitude = property(_get_float_latitude, _set_float_latitude,
+ doc="latitude as a floating point value")
+
+ def _get_float_longitude(self):
+ return float(self.longitude)
+
+ def _set_float_longitude(self, value):
+ self.longitude = str(value)
+
+ float_longitude = property(_get_float_longitude, _set_float_longitude,
+ doc="longitude as a floating point value")
+
+ def _get_float_altitude(self):
+ return float(self.altitude)
+
+ def _set_float_altitude(self, value):
+ self.altitude = str(value)
+
+ float_altitude = property(_get_float_altitude, _set_float_altitude,
+ doc="altitude as a floating point value")
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: HINFO.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+class HINFO(dns.rdata.Rdata):
+ """HINFO record
+
+ @ivar cpu: the CPU type
+ @type cpu: string
+ @ivar os: the OS type
+ @type os: string
+ @see: RFC 1035"""
+
+ __slots__ = ['cpu', 'os']
+
+ def __init__(self, rdclass, rdtype, cpu, os):
+ super(HINFO, self).__init__(rdclass, rdtype)
+ self.cpu = cpu
+ self.os = os
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '"%s" "%s"' % (dns.rdata._escapify(self.cpu),
+ dns.rdata._escapify(self.os))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ cpu = tok.get_string()
+ os = tok.get_string()
+ tok.get_eol()
+ return cls(rdclass, rdtype, cpu, os)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ l = len(self.cpu)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.cpu)
+ l = len(self.os)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.os)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen:
+ raise dns.exception.FormError
+ cpu = wire[current : current + l]
+ current += l
+ rdlen -= l
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l != rdlen:
+ raise dns.exception.FormError
+ os = wire[current : current + l]
+ return cls(rdclass, rdtype, cpu, os)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ v = cmp(self.cpu, other.cpu)
+ if v == 0:
+ v = cmp(self.os, other.os)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ISDN.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+class ISDN(dns.rdata.Rdata):
+ """ISDN record
+
+ @ivar address: the ISDN address
+ @type address: string
+ @ivar subaddress: the ISDN subaddress (or '' if not present)
+ @type subaddress: string
+ @see: RFC 1183"""
+
+ __slots__ = ['address', 'subaddress']
+
+ def __init__(self, rdclass, rdtype, address, subaddress):
+ super(ISDN, self).__init__(rdclass, rdtype)
+ self.address = address
+ self.subaddress = subaddress
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ if self.subaddress:
+ return '"%s" "%s"' % (dns.rdata._escapify(self.address),
+ dns.rdata._escapify(self.subaddress))
+ else:
+ return '"%s"' % dns.rdata._escapify(self.address)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ address = tok.get_string()
+ t = tok.get()
+ if t[0] != dns.tokenizer.EOL and t[0] != dns.tokenizer.EOF:
+ tok.unget(t)
+ subaddress = tok.get_string()
+ else:
+ tok.unget(t)
+ subaddress = ''
+ tok.get_eol()
+ return cls(rdclass, rdtype, address, subaddress)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ l = len(self.address)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.address)
+ l = len(self.subaddress)
+ if l > 0:
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.subaddress)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen:
+ raise dns.exception.FormError
+ address = wire[current : current + l]
+ current += l
+ rdlen -= l
+ if rdlen > 0:
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l != rdlen:
+ raise dns.exception.FormError
+ subaddress = wire[current : current + l]
+ else:
+ subaddress = ''
+ return cls(rdclass, rdtype, address, subaddress)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ v = cmp(self.address, other.address)
+ if v == 0:
+ v = cmp(self.subaddress, other.subaddress)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: KEY.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.keybase
+
+class KEY(dns.rdtypes.keybase.KEYBase):
+ """KEY record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: LOC.py,v 1.13 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import math
+import struct
+
+import dns.exception
+import dns.rdata
+
+_pows = (1L, 10L, 100L, 1000L, 10000L, 100000L, 1000000L, 10000000L,
+ 100000000L, 1000000000L, 10000000000L)
+
+def _exponent_of(what, desc):
+ exp = None
+ for i in xrange(len(_pows)):
+ if what // _pows[i] == 0L:
+ exp = i - 1
+ break
+ if exp is None or exp < 0:
+ raise dns.exception.SyntaxError, "%s value out of bounds" % desc
+ return exp
+
+def _float_to_tuple(what):
+ if what < 0:
+ sign = -1
+ what *= -1
+ else:
+ sign = 1
+ what = long(round(what * 3600000))
+ degrees = int(what // 3600000)
+ what -= degrees * 3600000
+ minutes = int(what // 60000)
+ what -= minutes * 60000
+ seconds = int(what // 1000)
+ what -= int(seconds * 1000)
+ what = int(what)
+ return (degrees * sign, minutes, seconds, what)
+
+def _tuple_to_float(what):
+ if what[0] < 0:
+ sign = -1
+ value = float(what[0]) * -1
+ else:
+ sign = 1
+ value = float(what[0])
+ value += float(what[1]) / 60.0
+ value += float(what[2]) / 3600.0
+ value += float(what[3]) / 3600000.0
+ return value
+
+def _encode_size(what, desc):
+ what = long(what);
+ exponent = _exponent_of(what, desc) & 0xF
+ base = what // pow(10, exponent) & 0xF
+ return base * 16 + exponent
+
+def _decode_size(what, desc):
+ exponent = what & 0x0F
+ if exponent > 9:
+ raise dns.exception.SyntaxError, "bad %s exponent" % desc
+ base = (what & 0xF0) >> 4
+ if base > 9:
+ raise dns.exception.SyntaxError, "bad %s base" % desc
+ return long(base) * pow(10, exponent)
+
+class LOC(dns.rdata.Rdata):
+ """LOC record
+
+ @ivar latitude: latitude
+ @type latitude: (int, int, int, int) tuple specifying the degrees, minutes,
+ seconds, and milliseconds of the coordinate.
+ @ivar longitude: longitude
+ @type longitude: (int, int, int, int) tuple specifying the degrees,
+ minutes, seconds, and milliseconds of the coordinate.
+ @ivar altitude: altitude
+ @type altitude: float
+ @ivar size: size of the sphere
+ @type size: float
+ @ivar horizontal_precision: horizontal precision
+ @type horizontal_precision: float
+ @ivar vertical_precision: vertical precision
+ @type vertical_precision: float
+ @see: RFC 1876"""
+
+ __slots__ = ['latitude', 'longitude', 'altitude', 'size',
+ 'horizontal_precision', 'vertical_precision']
+
+ def __init__(self, rdclass, rdtype, latitude, longitude, altitude,
+ size=1.0, hprec=10000.0, vprec=10.0):
+ """Initialize a LOC record instance.
+
+ The parameters I{latitude} and I{longitude} may be either a 4-tuple
+ of integers specifying (degrees, minutes, seconds, milliseconds),
+ or they may be floating point values specifying the number of
+ degrees. The other parameters are floats."""
+
+ super(LOC, self).__init__(rdclass, rdtype)
+ if isinstance(latitude, int) or isinstance(latitude, long):
+ latitude = float(latitude)
+ if isinstance(latitude, float):
+ latitude = _float_to_tuple(latitude)
+ self.latitude = latitude
+ if isinstance(longitude, int) or isinstance(longitude, long):
+ longitude = float(longitude)
+ if isinstance(longitude, float):
+ longitude = _float_to_tuple(longitude)
+ self.longitude = longitude
+ self.altitude = float(altitude)
+ self.size = float(size)
+ self.horizontal_precision = float(hprec)
+ self.vertical_precision = float(vprec)
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ if self.latitude[0] > 0:
+ lat_hemisphere = 'N'
+ lat_degrees = self.latitude[0]
+ else:
+ lat_hemisphere = 'S'
+ lat_degrees = -1 * self.latitude[0]
+ if self.longitude[0] > 0:
+ long_hemisphere = 'E'
+ long_degrees = self.longitude[0]
+ else:
+ long_hemisphere = 'W'
+ long_degrees = -1 * self.longitude[0]
+ text = "%d %d %d.%03d %s %d %d %d.%03d %s %0.2fm" % (
+ lat_degrees, self.latitude[1], self.latitude[2], self.latitude[3],
+ lat_hemisphere, long_degrees, self.longitude[1], self.longitude[2],
+ self.longitude[3], long_hemisphere, self.altitude / 100.0
+ )
+
+ if self.size != 1.0 or self.horizontal_precision != 10000.0 or \
+ self.vertical_precision != 10.0:
+ text += " %0.2fm %0.2fm %0.2fm" % (
+ self.size / 100.0, self.horizontal_precision / 100.0,
+ self.vertical_precision / 100.0
+ )
+ return text
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ latitude = [0, 0, 0, 0]
+ longitude = [0, 0, 0, 0]
+ size = 1.0
+ hprec = 10000.0
+ vprec = 10.0
+
+ latitude[0] = tok.get_int()
+ t = tok.get_string()
+ if t.isdigit():
+ latitude[1] = int(t)
+ t = tok.get_string()
+ if '.' in t:
+ (seconds, milliseconds) = t.split('.')
+ latitude[2] = int(seconds)
+ latitude[3] = int(milliseconds)
+ t = tok.get_string()
+ elif t.isdigit():
+ latitude[2] = int(t)
+ t = tok.get_string()
+ if t == 'S':
+ latitude[0] *= -1
+ elif t != 'N':
+ raise dns.exception.SyntaxError, 'bad latitude hemisphere value'
+
+ longitude[0] = tok.get_int()
+ t = tok.get_string()
+ if t.isdigit():
+ longitude[1] = int(t)
+ t = tok.get_string()
+ if '.' in t:
+ (seconds, milliseconds) = t.split('.')
+ longitude[2] = int(seconds)
+ longitude[3] = int(milliseconds)
+ t = tok.get_string()
+ elif t.isdigit():
+ longitude[2] = int(t)
+ t = tok.get_string()
+ if t == 'W':
+ longitude[0] *= -1
+ elif t != 'E':
+ raise dns.exception.SyntaxError, 'bad longitude hemisphere value'
+
+ t = tok.get_string()
+ if t[-1] == 'm':
+ t = t[0 : -1]
+ altitude = float(t) * 100.0 # m -> cm
+
+ (ttype, value) = tok.get()
+ if ttype != dns.tokenizer.EOL and ttype != dns.tokenizer.EOF:
+ if value[-1] == 'm':
+ value = value[0 : -1]
+ size = float(value) * 100.0 # m -> cm
+ (ttype, value) = tok.get()
+ if ttype != dns.tokenizer.EOL and ttype != dns.tokenizer.EOF:
+ if value[-1] == 'm':
+ value = value[0 : -1]
+ hprec = float(value) * 100.0 # m -> cm
+ (ttype, value) = tok.get()
+ if ttype != dns.tokenizer.EOL and ttype != dns.tokenizer.EOF:
+ if value[-1] == 'm':
+ value = value[0 : -1]
+ vprec = float(value) * 100.0 # m -> cm
+ (ttype, value) = tok.get()
+ if ttype != dns.tokenizer.EOL and \
+ ttype != dns.tokenizer.EOF:
+ raise dns.exception.SyntaxError, \
+ "expected EOL or EOF"
+
+ return cls(rdclass, rdtype, latitude, longitude, altitude,
+ size, hprec, vprec)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ if self.latitude[0] < 0:
+ sign = -1
+ degrees = long(-1 * self.latitude[0])
+ else:
+ sign = 1
+ degrees = long(self.latitude[0])
+ milliseconds = (degrees * 3600000 +
+ self.latitude[1] * 60000 +
+ self.latitude[2] * 1000 +
+ self.latitude[3]) * sign
+ latitude = 0x80000000L + milliseconds
+ if self.longitude[0] < 0:
+ sign = -1
+ degrees = long(-1 * self.longitude[0])
+ else:
+ sign = 1
+ degrees = long(self.longitude[0])
+ milliseconds = (degrees * 3600000 +
+ self.longitude[1] * 60000 +
+ self.longitude[2] * 1000 +
+ self.longitude[3]) * sign
+ longitude = 0x80000000L + milliseconds
+ altitude = long(self.altitude) + 10000000L
+ size = _encode_size(self.size, "size")
+ hprec = _encode_size(self.horizontal_precision, "horizontal precision")
+ vprec = _encode_size(self.vertical_precision, "vertical precision")
+ wire = struct.pack("!BBBBIII", 0, size, hprec, vprec, latitude,
+ longitude, altitude)
+ file.write(wire)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (version, size, hprec, vprec, latitude, longitude, altitude) = \
+ struct.unpack("!BBBBIII", wire[current : current + rdlen])
+ if latitude > 0x80000000L:
+ latitude = float(latitude - 0x80000000L) / 3600000
+ else:
+ latitude = -1 * float(0x80000000L - latitude) / 3600000
+ if latitude < -90.0 or latitude > 90.0:
+ raise dns.exception.FormError, "bad latitude"
+ if longitude > 0x80000000L:
+ longitude = float(longitude - 0x80000000L) / 3600000
+ else:
+ longitude = -1 * float(0x80000000L - longitude) / 3600000
+ if longitude < -180.0 or longitude > 180.0:
+ raise dns.exception.FormError, "bad longitude"
+ altitude = float(altitude) - 10000000.0
+ size = _decode_size(size, "size")
+ hprec = _decode_size(hprec, "horizontal precision")
+ vprec = _decode_size(vprec, "vertical precision")
+ return cls(rdclass, rdtype, latitude, longitude, altitude,
+ size, hprec, vprec)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ f = cStringIO.StringIO()
+ self.to_wire(f)
+ wire1 = f.getvalue()
+ f.seek(0)
+ f.truncate()
+ other.to_wire(f)
+ wire2 = f.getvalue()
+ f.close()
+
+ return cmp(wire1, wire2)
+
+ def _get_float_latitude(self):
+ return _tuple_to_float(self.latitude)
+
+ def _set_float_latitude(self, value):
+ self.latitude = _float_to_tuple(value)
+
+ float_latitude = property(_get_float_latitude, _set_float_latitude,
+ doc="latitude as a floating point value")
+
+ def _get_float_longitude(self):
+ return _tuple_to_float(self.longitude)
+
+ def _set_float_longitude(self, value):
+ self.longitude = _float_to_tuple(value)
+
+ float_longitude = property(_get_float_longitude, _set_float_longitude,
+ doc="longitude as a floating point value")
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: MX.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.mxbase
+
+class MX(dns.rdtypes.mxbase.MXBase):
+ """MX record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NS.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.nsbase
+
+class NS(dns.rdtypes.nsbase.NSBase):
+ """NS record"""
+ pass
--- /dev/null
+# Copyright (C) 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NSEC.py,v 1.1 2004/03/19 00:06:37 halley Exp $
+
+import cStringIO
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.rdatatype
+import dns.name
+
+class NSEC(dns.rdata.Rdata):
+ """NSEC record
+
+ @ivar next: the next name
+ @type next: dns.name.Name object
+ @ivar windows: the windowed bitmap list
+ @type windows: list of (window number, string) tuples"""
+
+ __slots__ = ['next', 'windows']
+
+ def __init__(self, rdclass, rdtype, next, windows):
+ super(NSEC, self).__init__(rdclass, rdtype)
+ self.next = next
+ self.windows = windows
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ next = self.next.choose_relativity(origin, relativize)
+ for (window, bitmap) in self.windows:
+ bits = []
+ for i in xrange(0, len(bitmap)):
+ byte = ord(bitmap[i])
+ for j in xrange(0, 8):
+ if byte & (0x80 >> j):
+ bits.append(dns.rdatatype.to_text(window * 256 + \
+ i * 8 + j))
+ text = ' '.join(bits)
+ return '%s %s' % (next, text)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ next = tok.get_name()
+ next = next.choose_relativity(origin, relativize)
+ rdtypes = []
+ while 1:
+ (ttype, value) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ if value.isdigit():
+ nrdtype = int(value)
+ else:
+ nrdtype = dns.rdatatype.from_text(value)
+ if nrdtype == 0:
+ raise dns.exception.SyntaxError, "NSEC with bit 0"
+ if nrdtype > 65535:
+ raise dns.exception.SyntaxError, "NSEC with bit > 65535"
+ rdtypes.append(nrdtype)
+ rdtypes.sort()
+ window = 0
+ octets = 0
+ prior_rdtype = 0
+ bitmap = ['\0'] * 32
+ windows = []
+ for nrdtype in rdtypes:
+ if nrdtype == prior_rdtype:
+ continue
+ prior_rdtype = nrdtype
+ new_window = nrdtype // 256
+ if new_window != window:
+ windows.append((window, ''.join(bitmap[0:octets])))
+ bitmap = ['\0'] * 32
+ window = new_window
+ offset = nrdtype % 256
+ byte = offset / 8
+ bit = offset % 8
+ octets = byte + 1
+ bitmap[byte] = chr(ord(bitmap[byte]) | (0x80 >> bit))
+ windows.append((window, ''.join(bitmap[0:octets])))
+ return cls(rdclass, rdtype, next, windows)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ self.next.to_wire(file, None, origin)
+ for (window, bitmap) in self.windows:
+ file.write(chr(window))
+ file.write(chr(len(bitmap)))
+ file.write(bitmap)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (next, cused) = dns.name.from_wire(wire[: current + rdlen], current)
+ current += cused
+ rdlen -= cused
+ windows = []
+ while rdlen > 0:
+ if rdlen < 3:
+ raise dns.exception.FormError, "NSEC too short"
+ window = ord(wire[current])
+ octets = ord(wire[current + 1])
+ if octets == 0 or octets > 32:
+ raise dns.exception.FormError, "bad NSEC octets"
+ current += 2
+ rdlen -= 2
+ if rdlen < octets:
+ raise dns.exception.FormError, "bad NSEC bitmap length"
+ bitmap = wire[current : current + octets]
+ current += octets
+ rdlen -= octets
+ windows.append((window, bitmap))
+ if not origin is None:
+ next = next.relativize(origin)
+ return cls(rdclass, rdtype, next, windows)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.next = self.next.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ v = cmp(self.next, other.next)
+ if v == 0:
+ b1 = cStringIO.StringIO()
+ for (window, bitmap) in self.windows:
+ b1.write(chr(window))
+ b1.write(chr(len(bitmap)))
+ b1.write(bitmap)
+ b2 = cStringIO.StringIO()
+ for (window, bitmap) in other.windows:
+ b2.write(chr(window))
+ b2.write(chr(len(bitmap)))
+ b2.write(bitmap)
+ v = cmp(b1.getvalue(), b2.getvalue())
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NXT.py,v 1.10 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.rdatatype
+import dns.name
+
+class NXT(dns.rdata.Rdata):
+ """NXT record
+
+ @ivar next: the next name
+ @type next: dns.name.Name object
+ @ivar bitmap: the type bitmap
+ @type bitmap: string
+ @see: RFC 2535"""
+
+ __slots__ = ['next', 'bitmap']
+
+ def __init__(self, rdclass, rdtype, next, bitmap):
+ super(NXT, self).__init__(rdclass, rdtype)
+ self.next = next
+ self.bitmap = bitmap
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ next = self.next.choose_relativity(origin, relativize)
+ bits = []
+ for i in xrange(0, len(self.bitmap)):
+ byte = ord(self.bitmap[i])
+ for j in xrange(0, 8):
+ if byte & (0x80 >> j):
+ bits.append(dns.rdatatype.to_text(i * 8 + j))
+ text = ' '.join(bits)
+ return '%s %s' % (next, text)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ next = tok.get_name()
+ next = next.choose_relativity(origin, relativize)
+ bitmap = ['\x00', '\x00', '\x00', '\x00',
+ '\x00', '\x00', '\x00', '\x00',
+ '\x00', '\x00', '\x00', '\x00',
+ '\x00', '\x00', '\x00', '\x00' ]
+ while 1:
+ (ttype, value) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ if value.isdigit():
+ nrdtype = int(value)
+ else:
+ nrdtype = dns.rdatatype.from_text(value)
+ if nrdtype == 0:
+ raise dns.exception.SyntaxError, "NXT with bit 0"
+ if nrdtype > 127:
+ raise dns.exception.SyntaxError, "NXT with bit > 127"
+ i = nrdtype // 8
+ bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (nrdtype % 8)))
+ bitmap = dns.rdata._truncate_bitmap(bitmap)
+ return cls(rdclass, rdtype, next, bitmap)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ self.next.to_wire(file, None, origin)
+ file.write(self.bitmap)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (next, cused) = dns.name.from_wire(wire[: current + rdlen], current)
+ current += cused
+ rdlen -= cused
+ bitmap = wire[current : current + rdlen]
+ if not origin is None:
+ next = next.relativize(origin)
+ return cls(rdclass, rdtype, next, bitmap)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.next = self.next.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ v = cmp(self.next, other.next)
+ if v == 0:
+ v = cmp(self.bitmap, other.bitmap)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: PTR.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.nsbase
+
+class PTR(dns.rdtypes.nsbase.NSBase):
+ """PTR record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: RP.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class RP(dns.rdata.Rdata):
+ """RP record
+
+ @ivar mbox: The responsible person's mailbox
+ @type mbox: dns.name.Name object
+ @ivar txt: The owner name of a node with TXT records, or the root name
+ if no TXT records are associated with this RP.
+ @type txt: dns.name.Name object
+ @see: RFC 1183"""
+
+ __slots__ = ['mbox', 'txt']
+
+ def __init__(self, rdclass, rdtype, mbox, txt):
+ super(RP, self).__init__(rdclass, rdtype)
+ self.mbox = mbox
+ self.txt = txt
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ mbox = self.mbox.choose_relativity(origin, relativize)
+ txt = self.txt.choose_relativity(origin, relativize)
+ return "%s %s" % (str(mbox), str(txt))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ mbox = tok.get_name()
+ txt = tok.get_name()
+ mbox = mbox.choose_relativity(origin, relativize)
+ txt = txt.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, mbox, txt)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ self.mbox.to_wire(file, None, origin)
+ self.txt.to_wire(file, None, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (mbox, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ current += cused
+ rdlen -= cused
+ if rdlen <= 0:
+ raise dns.exception.FormError
+ (txt, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ mbox = mbox.relativize(origin)
+ txt = txt.relativize(origin)
+ return cls(rdclass, rdtype, mbox, txt)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.mbox = self.mbox.choose_relativity(origin, relativize)
+ self.txt = self.txt.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ v = cmp(self.mbox, other.mbox)
+ if v == 0:
+ v = cmp(self.txt, other.txt)
+ return v
--- /dev/null
+# Copyright (C) 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: RRSIG.py,v 1.1 2004/03/19 00:06:37 halley Exp $
+
+import dns.rdtypes.sigbase
+
+class RRSIG(dns.rdtypes.sigbase.SIGBase):
+ """RRSIG record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: RT.py,v 1.6 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.mxbase
+
+class RT(dns.rdtypes.mxbase.UncompressedMX):
+ """RT record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: SIG.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.sigbase
+
+class SIG(dns.rdtypes.sigbase.SIGBase):
+ """SIG record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: SOA.py,v 1.17 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class SOA(dns.rdata.Rdata):
+ """SOA record
+
+ @ivar mname: the SOA MNAME (master name) field
+ @type mname: dns.name.Name object
+ @ivar rname: the SOA RNAME (responsible name) field
+ @type rname: dns.name.Name object
+ @ivar serial: The zone's serial number
+ @type serial: int
+ @ivar refresh: The zone's refresh value (in seconds)
+ @type refresh: int
+ @ivar retry: The zone's retry value (in seconds)
+ @type retry: int
+ @ivar expiration: The zone's expiration value (in seconds)
+ @type expiration: int
+ @ivar minimum: The zone's negative caching time (in seconds, called
+ "minimum" for historical reasons)
+ @type minimum: int
+ @see: RFC 1035"""
+
+ __slots__ = ['mname', 'rname', 'serial', 'refresh', 'retry', 'expire',
+ 'minimum']
+
+ def __init__(self, rdclass, rdtype, mname, rname, serial, refresh, retry,
+ expire, minimum):
+ super(SOA, self).__init__(rdclass, rdtype)
+ self.mname = mname
+ self.rname = rname
+ self.serial = serial
+ self.refresh = refresh
+ self.retry = retry
+ self.expire = expire
+ self.minimum = minimum
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ mname = self.mname.choose_relativity(origin, relativize)
+ rname = self.rname.choose_relativity(origin, relativize)
+ return '%s %s %d %d %d %d %d' % (
+ mname, rname, self.serial, self.refresh, self.retry,
+ self.expire, self.minimum )
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ mname = tok.get_name()
+ rname = tok.get_name()
+ mname = mname.choose_relativity(origin, relativize)
+ rname = rname.choose_relativity(origin, relativize)
+ serial = tok.get_uint32()
+ refresh = tok.get_uint32()
+ retry = tok.get_uint32()
+ expire = tok.get_uint32()
+ minimum = tok.get_uint32()
+ tok.get_eol()
+ return cls(rdclass, rdtype, mname, rname, serial, refresh, retry,
+ expire, minimum )
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ self.mname.to_wire(file, compress, origin)
+ self.rname.to_wire(file, compress, origin)
+ five_ints = struct.pack('!IIIII', self.serial, self.refresh,
+ self.retry, self.expire, self.minimum)
+ file.write(five_ints)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (mname, cused) = dns.name.from_wire(wire[: current + rdlen], current)
+ current += cused
+ rdlen -= cused
+ (rname, cused) = dns.name.from_wire(wire[: current + rdlen], current)
+ current += cused
+ rdlen -= cused
+ if rdlen != 20:
+ raise dns.exception.FormError
+ five_ints = struct.unpack('!IIIII',
+ wire[current : current + rdlen])
+ if not origin is None:
+ mname = mname.relativize(origin)
+ rname = rname.relativize(origin)
+ return cls(rdclass, rdtype, mname, rname,
+ five_ints[0], five_ints[1], five_ints[2], five_ints[3],
+ five_ints[4])
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.mname = self.mname.choose_relativity(origin, relativize)
+ self.rname = self.rname.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ v = cmp(self.mname, other.mname)
+ if v == 0:
+ v = cmp(self.rname, other.rname)
+ if v == 0:
+ self_ints = struct.pack('!IIIII', self.serial, self.refresh,
+ self.retry, self.expire, self.minimum)
+ other_ints = struct.pack('!IIIII', other.serial, other.refresh,
+ other.retry, other.expire,
+ other.minimum)
+ v = cmp(self_ints, other_ints)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: TXT.py,v 1.14 2004/03/19 00:17:27 halley Exp $
+
+import socket
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+class TXT(dns.rdata.Rdata):
+ """TXT record
+
+ @ivar strings: the text strings
+ @type strings: list of string
+ @see: RFC 1035"""
+
+ __slots__ = ['strings']
+
+ def __init__(self, rdclass, rdtype, strings):
+ super(TXT, self).__init__(rdclass, rdtype)
+ if isinstance(strings, str):
+ strings = [ strings ]
+ self.strings = strings[:]
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ txt = ''
+ prefix = ''
+ for s in self.strings:
+ txt += '%s"%s"' % (prefix, dns.rdata._escapify(s))
+ prefix = ' '
+ return txt
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ strings = []
+ while 1:
+ (ttype, s) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ if ttype != dns.tokenizer.QUOTED_STRING:
+ raise dns.exception.SyntaxError, "expected a quoted string"
+ if len(s) > 255:
+ raise dns.exception.SyntaxError, "string too long"
+ strings.append(s)
+ if len(strings) == 0:
+ raise dns.exception.UnexpectedEnd
+ return cls(rdclass, rdtype, strings)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ for s in self.strings:
+ l = len(s)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(s)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ strings = []
+ while rdlen > 0:
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen:
+ raise dns.exception.FormError
+ s = wire[current : current + l]
+ current += l
+ rdlen -= l
+ strings.append(s)
+ return cls(rdclass, rdtype, strings)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ return cmp(self.strings, other.strings)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: X25.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+class X25(dns.rdata.Rdata):
+ """X25 record
+
+ @ivar address: the PSDN address
+ @type address: string
+ @see: RFC 1183"""
+
+ __slots__ = ['address']
+
+ def __init__(self, rdclass, rdtype, address):
+ super(X25, self).__init__(rdclass, rdtype)
+ self.address = address
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '"%s"' % dns.rdata._escapify(self.address)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ address = tok.get_string()
+ tok.get_eol()
+ return cls(rdclass, rdtype, address)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ l = len(self.address)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(self.address)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l != rdlen:
+ raise dns.exception.FormError
+ address = wire[current : current + l]
+ return cls(rdclass, rdtype, address)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ return cmp(self.address, other.address)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: __init__.py,v 1.18 2004/03/19 00:17:27 halley Exp $
+
+"""Class ANY (generic) rdata type classes."""
+
+__all__ = [
+ 'AFSDB',
+ 'CERT',
+ 'CNAME',
+ 'DNAME',
+ 'DS',
+ 'GPOS',
+ 'HINFO',
+ 'ISDN',
+ 'KEY',
+ 'LOC',
+ 'MX',
+ 'NS',
+ 'NXT',
+ 'PTR',
+ 'RP',
+ 'RT',
+ 'SIG',
+ 'SOA',
+ 'TXT',
+ 'X25',
+ 'RRSIG',
+ 'NSEC',
+ 'DNSKEY',
+]
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:43 2004 4756.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.7
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.8
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.9
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:01 2004 4760.10
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: A.py,v 1.14 2004/03/19 00:17:27 halley Exp $
+
+import socket
+
+import dns.exception
+import dns.ipv4
+import dns.rdata
+import dns.tokenizer
+
+class A(dns.rdata.Rdata):
+ """A record.
+
+ @ivar address: an IPv4 address
+ @type address: string (in the standard "dotted quad" format)"""
+
+ __slots__ = ['address']
+
+ def __init__(self, rdclass, rdtype, address):
+ super(A, self).__init__(rdclass, rdtype)
+ # check that it's OK
+ junk = dns.ipv4.inet_aton(address)
+ self.address = address
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return self.address
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ (ttype, address) = tok.get()
+ if ttype != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ t = tok.get_eol()
+ return cls(rdclass, rdtype, address)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ file.write(dns.ipv4.inet_aton(self.address))
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ address = dns.ipv4.inet_ntoa(wire[current : current + rdlen])
+ return cls(rdclass, rdtype, address)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ sa = dns.ipv4.inet_aton(self.address)
+ oa = dns.ipv4.inet_aton(other.address)
+ return cmp(sa, oa)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: AAAA.py,v 1.16 2004/03/19 00:17:27 halley Exp $
+
+import socket
+
+import dns.exception
+import dns.inet
+import dns.rdata
+import dns.tokenizer
+
+class AAAA(dns.rdata.Rdata):
+ """AAAA record.
+
+ @ivar address: an IPv6 address
+ @type address: string (in the standard IPv6 format)"""
+
+ __slots__ = ['address']
+
+ def __init__(self, rdclass, rdtype, address):
+ super(AAAA, self).__init__(rdclass, rdtype)
+ # check that it's OK
+ junk = dns.inet.inet_pton(dns.inet.AF_INET6, address)
+ self.address = address
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return self.address
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ (ttype, address) = tok.get()
+ if ttype != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ t = tok.get_eol()
+ return cls(rdclass, rdtype, address)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ file.write(dns.inet.inet_pton(dns.inet.AF_INET6, self.address))
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ address = dns.inet.inet_ntop(dns.inet.AF_INET6,
+ wire[current : current + rdlen])
+ return cls(rdclass, rdtype, address)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ sa = dns.inet.inet_pton(dns.inet.AF_INET6, self.address)
+ oa = dns.inet.inet_pton(dns.inet.AF_INET6, other.address)
+ return cmp(sa, oa)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: APL.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import socket
+import struct
+
+import dns.exception
+import dns.inet
+import dns.rdata
+import dns.tokenizer
+
+class APLItem(object):
+ """An APL list item.
+
+ @ivar family: the address family (IANA address family registry)
+ @type family: int
+ @ivar negation: is this item negated?
+ @type negation: bool
+ @ivar address: the address
+ @type address: string
+ @ivar prefix: the prefix length
+ @type prefix: int
+ """
+
+ __slots__ = ['family', 'negation', 'address', 'prefix']
+
+ def __init__(self, family, negation, address, prefix):
+ self.family = family
+ self.negation = negation
+ self.address = address
+ self.prefix = prefix
+
+ def __str__(self):
+ if self.negation:
+ return "!%d:%s/%s" % (self.family, self.address, self.prefix)
+ else:
+ return "%d:%s/%s" % (self.family, self.address, self.prefix)
+
+ def to_wire(self, file):
+ if self.family == 1:
+ address = dns.inet.inet_pton(dns.inet.AF_INET, self.address)
+ elif self.family == 2:
+ address = dns.inet.inet_pton(dns.inet.AF_INET6, self.address)
+ else:
+ address = self.address.decode('hex_codec')
+ #
+ # Truncate least significant zero bytes.
+ #
+ last = 0
+ for i in xrange(len(address) - 1, -1, -1):
+ if address[i] != chr(0):
+ last = i + 1
+ break
+ address = address[0 : last]
+ l = len(address)
+ assert l < 128
+ if self.negation:
+ l |= 0x80
+ header = struct.pack('!HBB', self.family, self.prefix, l)
+ file.write(header)
+ file.write(address)
+
+class APL(dns.rdata.Rdata):
+ """APL record.
+
+ @ivar items: a list of APL items
+ @type items: list of APL_Item
+ @see: RFC 3123"""
+
+ __slots__ = ['items']
+
+ def __init__(self, rdclass, rdtype, items):
+ super(APL, self).__init__(rdclass, rdtype)
+ self.items = items
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return ' '.join(map(lambda x: str(x), self.items))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ items = []
+ while 1:
+ (ttype, item) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ if item[0] == '!':
+ negation = True
+ item = item[1:]
+ else:
+ negation = False
+ (family, rest) = item.split(':', 1)
+ family = int(family)
+ (address, prefix) = rest.split('/', 1)
+ prefix = int(prefix)
+ item = APLItem(family, negation, address, prefix)
+ items.append(item)
+
+ return cls(rdclass, rdtype, items)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ for item in self.items:
+ item.to_wire(file)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ items = []
+ while 1:
+ if rdlen < 4:
+ raise dns.exception.FormError
+ header = struct.unpack('!HBB', wire[current : current + 4])
+ afdlen = header[2]
+ if afdlen > 127:
+ negation = True
+ afdlen -= 128
+ else:
+ negation = False
+ current += 4
+ rdlen -= 4
+ if rdlen < afdlen:
+ raise dns.exception.FormError
+ address = wire[current : current + afdlen]
+ l = len(address)
+ if header[0] == 1:
+ if l < 4:
+ address += '\x00' * (4 - l)
+ address = dns.inet.inet_ntop(dns.inet.AF_INET, address)
+ elif header[0] == 2:
+ if l < 16:
+ address += '\x00' * (16 - l)
+ address = dns.inet.inet_ntop(dns.inet.AF_INET6, address)
+ else:
+ #
+ # This isn't really right according to the RFC, but it
+ # seems better than throwing an exception
+ #
+ address = address.encode('hex_codec')
+ current += afdlen
+ rdlen -= afdlen
+ item = APLItem(header[0], negation, address, header[1])
+ items.append(item)
+ if rdlen == 0:
+ break
+ return cls(rdclass, rdtype, items)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ f = cStringIO.StringIO()
+ self.to_wire(f)
+ wire1 = f.getvalue()
+ f.seek(0)
+ f.truncate()
+ other.to_wire(f)
+ wire2 = f.getvalue()
+ f.close()
+
+ return cmp(wire1, wire2)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: KX.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.mxbase
+
+class KX(dns.rdtypes.mxbase.UncompressedMX):
+ """KX record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NAPTR.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.name
+import dns.rdata
+
+def _write_string(file, s):
+ l = len(s)
+ assert l < 256
+ byte = chr(l)
+ file.write(byte)
+ file.write(s)
+
+class NAPTR(dns.rdata.Rdata):
+ """NAPTR record
+
+ @ivar order: order
+ @type order: int
+ @ivar preference: preference
+ @type preference: int
+ @ivar flags: flags
+ @type flags: string
+ @ivar service: service
+ @type service: string
+ @ivar regexp: regular expression
+ @type regexp: string
+ @ivar replacement: replacement name
+ @type replacement: dns.name.Name object
+ @see: RFC 3403"""
+
+ __slots__ = ['order', 'preference', 'flags', 'service', 'regexp',
+ 'replacement']
+
+ def __init__(self, rdclass, rdtype, order, preference, flags, service,
+ regexp, replacement):
+ super(NAPTR, self).__init__(rdclass, rdtype)
+ self.order = order
+ self.preference = preference
+ self.flags = flags
+ self.service = service
+ self.regexp = regexp
+ self.replacement = replacement
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ replacement = self.replacement.choose_relativity(origin, relativize)
+ return '%d %d "%s" "%s" "%s" %s' % \
+ (self.order, self.preference,
+ dns.rdata._escapify(self.flags),
+ dns.rdata._escapify(self.service),
+ dns.rdata._escapify(self.regexp),
+ self.replacement)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ order = tok.get_uint16()
+ preference = tok.get_uint16()
+ flags = tok.get_string()
+ service = tok.get_string()
+ regexp = tok.get_string()
+ replacement = tok.get_name()
+ replacement = replacement.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, order, preference, flags, service,
+ regexp, replacement)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ two_ints = struct.pack("!HH", self.order, self.preference)
+ file.write(two_ints)
+ _write_string(file, self.flags)
+ _write_string(file, self.service)
+ _write_string(file, self.regexp)
+ self.replacement.to_wire(file, compress, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (order, preference) = struct.unpack('!HH', wire[current : current + 4])
+ current += 4
+ rdlen -= 4
+ strings = []
+ for i in xrange(3):
+ l = ord(wire[current])
+ current += 1
+ rdlen -= 1
+ if l > rdlen or rdlen < 0:
+ raise dns.exception.FormError
+ s = wire[current : current + l]
+ current += l
+ rdlen -= l
+ strings.append(s)
+ (replacement, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ replacement = replacement.relativize(origin)
+ return cls(rdclass, rdtype, order, preference, strings[0], strings[1],
+ strings[2], replacement)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.replacement = self.replacement.choose_relativity(origin,
+ relativize)
+
+ def _cmp(self, other):
+ sp = struct.pack("!HH", self.order, self.preference)
+ op = struct.pack("!HH", other.order, self.preference)
+ v = cmp(sp, op)
+ if v == 0:
+ v = cmp(self.flags, other.flags)
+ if v == 0:
+ v = cmp(self.service, other.service)
+ if v == 0:
+ v = cmp(self.regexp, other.regexp)
+ if v == 0:
+ v = cmp(self.replacement, other.replacement)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NSAP.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+import socket
+
+import dns.exception
+import dns.rdata
+import dns.tokenizer
+
+class NSAP(dns.rdata.Rdata):
+ """NSAP record.
+
+ @ivar address: a NASP
+ @type address: string
+ @see: RFC 1706"""
+
+ __slots__ = ['address']
+
+ def __init__(self, rdclass, rdtype, address):
+ super(NSAP, self).__init__(rdclass, rdtype)
+ self.address = address
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return "0x%s" % self.address.encode('hex_codec')
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ address = tok.get_string()
+ t = tok.get_eol()
+ if address[0:2] != '0x':
+ raise dns.exception.SyntaxError, 'string does not start with 0x'
+ address = address[2:].replace('.', '')
+ if len(address) % 2 != 0:
+ raise dns.exception.SyntaxError, 'hexstring has odd length'
+ address = address.decode('hex_codec')
+ return cls(rdclass, rdtype, address)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ file.write(self.address)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ address = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, address)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ return cmp(self.address, other.address)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: NSAP_PTR.py,v 1.3 2004/03/19 00:17:27 halley Exp $
+
+import dns.rdtypes.nsbase
+
+class NSAP_PTR(dns.rdtypes.nsbase.UncompressedNS):
+ """NSAP-PTR record"""
+ pass
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: PX.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class PX(dns.rdata.Rdata):
+ """PX record.
+
+ @ivar preference: the preference value
+ @type preference: int
+ @ivar map822: the map822 name
+ @type map822: dns.name.Name object
+ @ivar mapx400: the mapx400 name
+ @type mapx400: dns.name.Name object
+ @see: RFC 2163"""
+
+ __slots__ = ['preference', 'map822', 'mapx400']
+
+ def __init__(self, rdclass, rdtype, preference, map822, mapx400):
+ super(PX, self).__init__(rdclass, rdtype)
+ self.preference = preference
+ self.map822 = map822
+ self.mapx400 = mapx400
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ map822 = self.map822.choose_relativity(origin, relativize)
+ mapx400 = self.mapx400.choose_relativity(origin, relativize)
+ return '%d %s %s' % (self.preference, map822, mapx400)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ preference = tok.get_uint16()
+ map822 = tok.get_name()
+ map822 = map822.choose_relativity(origin, relativize)
+ mapx400 = tok.get_name(None)
+ mapx400 = mapx400.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, preference, map822, mapx400)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ pref = struct.pack("!H", self.preference)
+ file.write(pref)
+ self.map822.to_wire(file, None, origin)
+ self.mapx400.to_wire(file, None, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (preference, ) = struct.unpack('!H', wire[current : current + 2])
+ current += 2
+ rdlen -= 2
+ (map822, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused > rdlen:
+ raise dns.exception.FormError
+ current += cused
+ rdlen -= cused
+ if not origin is None:
+ map822 = map822.relativize(origin)
+ (mapx400, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ mapx400 = mapx400.relativize(origin)
+ return cls(rdclass, rdtype, preference, map822, mapx400)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.map822 = self.map822.choose_relativity(origin, relativize)
+ self.mapx400 = self.mapx400.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ sp = struct.pack("!H", self.preference)
+ op = struct.pack("!H", other.preference)
+ v = cmp(sp, op)
+ if v == 0:
+ v = cmp(self.map822, other.map822)
+ if v == 0:
+ v = cmp(self.mapx400, other.mapx400)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: SRV.py,v 1.11 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class SRV(dns.rdata.Rdata):
+ """SRV record
+
+ @ivar priority: the priority
+ @type priority: int
+ @ivar weight: the weight
+ @type weight: int
+ @ivar port: the port of the service
+ @type port: int
+ @ivar target: the target host
+ @type target: dns.name.Name object
+ @see: RFC 2782"""
+
+ __slots__ = ['priority', 'weight', 'port', 'target']
+
+ def __init__(self, rdclass, rdtype, priority, weight, port, target):
+ super(SRV, self).__init__(rdclass, rdtype)
+ self.priority = priority
+ self.weight = weight
+ self.port = port
+ self.target = target
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ target = self.target.choose_relativity(origin, relativize)
+ return '%d %d %d %s' % (self.priority, self.weight, self.port,
+ target)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ priority = tok.get_uint16()
+ weight = tok.get_uint16()
+ port = tok.get_uint16()
+ target = tok.get_name(None)
+ target = target.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, priority, weight, port, target)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ three_ints = struct.pack("!HHH", self.priority, self.weight, self.port)
+ file.write(three_ints)
+ self.target.to_wire(file, compress, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (priority, weight, port) = struct.unpack('!HHH',
+ wire[current : current + 6])
+ current += 6
+ rdlen -= 6
+ (target, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ target = target.relativize(origin)
+ return cls(rdclass, rdtype, priority, weight, port, target)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.target = self.target.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ sp = struct.pack("!HHH", self.priority, self.weight, self.port)
+ op = struct.pack("!HHH", other.priority, self.weight, self.port)
+ v = cmp(sp, op)
+ if v == 0:
+ v = cmp(self.target, other.target)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: WKS.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+import socket
+import struct
+
+import dns.ipv4
+import dns.rdata
+
+_proto_tcp = socket.getprotobyname('tcp')
+_proto_udp = socket.getprotobyname('udp')
+
+class WKS(dns.rdata.Rdata):
+ """WKS record
+
+ @ivar address: the address
+ @type address: string
+ @ivar protocol: the protocol
+ @type protocol: int
+ @ivar bitmap: the bitmap
+ @type bitmap: string
+ @see: RFC 1035"""
+
+ __slots__ = ['address', 'protocol', 'bitmap']
+
+ def __init__(self, rdclass, rdtype, address, protocol, bitmap):
+ super(WKS, self).__init__(rdclass, rdtype)
+ self.address = address
+ self.protocol = protocol
+ self.bitmap = bitmap
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ bits = []
+ for i in xrange(0, len(self.bitmap)):
+ byte = ord(self.bitmap[i])
+ for j in xrange(0, 8):
+ if byte & (0x80 >> j):
+ bits.append(str(i * 8 + j))
+ text = ' '.join(bits)
+ return '%s %d %s' % (self.address, self.protocol, text)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ address = tok.get_string()
+ protocol = tok.get_string()
+ if protocol.isdigit():
+ protocol = int(protocol)
+ else:
+ protocol = socket.getprotobyname(protocol)
+ bitmap = []
+ while 1:
+ (ttype, value) = tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+ if value.isdigit():
+ serv = int(value)
+ else:
+ if protocol != _proto_udp and protocol != _proto_tcp:
+ raise NotImplementedError, "protocol must be TCP or UDP"
+ if protocol == _proto_udp:
+ protocol_text = "udp"
+ else:
+ protocol_text = "tcp"
+ serv = socket.getservbyname(value, protocol_text)
+ i = serv // 8
+ l = len(bitmap)
+ if l < i + 1:
+ for j in xrange(l, i + 1):
+ bitmap.append('\x00')
+ bitmap[i] = chr(ord(bitmap[i]) | (0x80 >> (serv % 8)))
+ bitmap = dns.rdata._truncate_bitmap(bitmap)
+ return cls(rdclass, rdtype, address, protocol, bitmap)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ file.write(dns.ipv4.inet_aton(self.address))
+ protocol = struct.pack('!B', self.protocol)
+ file.write(protocol)
+ file.write(self.bitmap)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ address = dns.ipv4.inet_ntoa(wire[current : current + 4])
+ protocol, = struct.unpack('!B', wire[current + 4 : current + 5])
+ current += 5
+ rdlen -= 5
+ bitmap = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, address, protocol, bitmap)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ sa = dns.ipv4.inet_aton(self.address)
+ oa = dns.ipv4.inet_aton(other.address)
+ v = cmp(sa, oa)
+ if v == 0:
+ sp = struct.pack('!B', self.protocol)
+ op = struct.pack('!B', other.protocol)
+ v = cmp(sp, op)
+ if v == 0:
+ v = cmp(self.bitmap, other.bitmap)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: __init__.py,v 1.10 2004/03/19 00:17:27 halley Exp $
+
+"""Class IN rdata type classes."""
+
+__all__ = [
+ 'A',
+ 'AAAA',
+ 'APL',
+ 'KX',
+ 'PX',
+ 'NAPTR',
+ 'NSAP',
+ 'NSAP_PTR',
+ 'SRV',
+ 'WKS',
+]
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: __init__.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+"""DNS rdata type classes"""
+
+__all__ = [
+ 'ANY',
+ 'IN',
+ 'mxbase',
+ 'nsbase',
+ 'sigbase',
+ 'keybase',
+]
--- /dev/null
+# Copyright (C) 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: keybase.py,v 1.2 2004/03/19 00:17:27 halley Exp $
+
+import struct
+
+import dns.exception
+import dns.dnssec
+import dns.rdata
+
+_flags_from_text = {
+ 'NOCONF': (0x4000, 0xC000),
+ 'NOAUTH': (0x8000, 0xC000),
+ 'NOKEY': (0xC000, 0xC000),
+ 'FLAG2': (0x2000, 0x2000),
+ 'EXTEND': (0x1000, 0x1000),
+ 'FLAG4': (0x0800, 0x0800),
+ 'FLAG5': (0x0400, 0x0400),
+ 'USER': (0x0000, 0x0300),
+ 'ZONE': (0x0100, 0x0300),
+ 'HOST': (0x0200, 0x0300),
+ 'NTYP3': (0x0300, 0x0300),
+ 'FLAG8': (0x0080, 0x0080),
+ 'FLAG9': (0x0040, 0x0040),
+ 'FLAG10': (0x0020, 0x0020),
+ 'FLAG11': (0x0010, 0x0010),
+ 'SIG0': (0x0000, 0x000f),
+ 'SIG1': (0x0001, 0x000f),
+ 'SIG2': (0x0002, 0x000f),
+ 'SIG3': (0x0003, 0x000f),
+ 'SIG4': (0x0004, 0x000f),
+ 'SIG5': (0x0005, 0x000f),
+ 'SIG6': (0x0006, 0x000f),
+ 'SIG7': (0x0007, 0x000f),
+ 'SIG8': (0x0008, 0x000f),
+ 'SIG9': (0x0009, 0x000f),
+ 'SIG10': (0x000a, 0x000f),
+ 'SIG11': (0x000b, 0x000f),
+ 'SIG12': (0x000c, 0x000f),
+ 'SIG13': (0x000d, 0x000f),
+ 'SIG14': (0x000e, 0x000f),
+ 'SIG15': (0x000f, 0x000f),
+ }
+
+_protocol_from_text = {
+ 'NONE' : 0,
+ 'TLS' : 1,
+ 'EMAIL' : 2,
+ 'DNSSEC' : 3,
+ 'IPSEC' : 4,
+ 'ALL' : 255,
+ }
+
+class KEYBase(dns.rdata.Rdata):
+ """KEY-like record base
+
+ @ivar flags: the key flags
+ @type flags: int
+ @ivar protocol: the protocol for which this key may be used
+ @type protocol: int
+ @ivar algorithm: the algorithm used for the key
+ @type algorithm: int
+ @ivar key: the public key
+ @type key: string"""
+
+ __slots__ = ['flags', 'protocol', 'algorithm', 'key']
+
+ def __init__(self, rdclass, rdtype, flags, protocol, algorithm, key):
+ super(KEYBase, self).__init__(rdclass, rdtype)
+ self.flags = flags
+ self.protocol = protocol
+ self.algorithm = algorithm
+ self.key = key
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '%d %d %d %s' % (self.flags, self.protocol, self.algorithm,
+ dns.rdata._base64ify(self.key))
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ flags = tok.get_string()
+ if flags.isdigit():
+ flags = int(flags)
+ else:
+ flag_names = flags.split('|')
+ flags = 0
+ for flag in flag_names:
+ v = _flags_from_text.get(flag)
+ if v is None:
+ raise dns.exception.SyntaxError, 'unknown flag %s' % flag
+ flags &= ~v[1]
+ flags |= v[0]
+ protocol = tok.get_string()
+ if protocol.isdigit():
+ protocol = int(protocol)
+ else:
+ protocol = _protocol_from_text.get(protocol)
+ if protocol is None:
+ raise dns.exception.SyntaxError, \
+ 'unknown protocol %s' % protocol
+
+ algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
+ chunks = []
+ while 1:
+ t = tok.get()
+ if t[0] == dns.tokenizer.EOL or t[0] == dns.tokenizer.EOF:
+ break
+ if t[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ chunks.append(t[1])
+ b64 = ''.join(chunks)
+ key = b64.decode('base64_codec')
+ return cls(rdclass, rdtype, flags, protocol, algorithm, key)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ header = struct.pack("!HBB", self.flags, self.protocol, self.algorithm)
+ file.write(header)
+ file.write(self.key)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ if rdlen < 4:
+ raise dns.exception.FormError
+ header = struct.unpack('!HBB', wire[current : current + 4])
+ current += 4
+ rdlen -= 4
+ key = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, header[0], header[1], header[2],
+ key)
+
+ from_wire = classmethod(from_wire)
+
+ def _cmp(self, other):
+ hs = struct.pack("!HBB", self.flags, self.protocol, self.algorithm)
+ ho = struct.pack("!HBB", other.flags, other.protocol, other.algorithm)
+ v = cmp(hs, ho)
+ if v == 0:
+ v = cmp(self.key, other.key)
+ return v
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: mxbase.py,v 1.12 2004/03/19 00:17:27 halley Exp $
+
+"""MX-like base classes."""
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class MXBase(dns.rdata.Rdata):
+ """Base class for rdata that is like an MX record.
+
+ @ivar preference: the preference value
+ @type preference: int
+ @ivar exchange: the exchange name
+ @type exchange: dns.name.Name object"""
+
+ __slots__ = ['preference', 'exchange']
+
+ def __init__(self, rdclass, rdtype, preference, exchange):
+ super(MXBase, self).__init__(rdclass, rdtype)
+ self.preference = preference
+ self.exchange = exchange
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ exchange = self.exchange.choose_relativity(origin, relativize)
+ return '%d %s' % (self.preference, exchange)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ preference = tok.get_uint16()
+ exchange = tok.get_name()
+ exchange = exchange.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, preference, exchange)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ pref = struct.pack("!H", self.preference)
+ file.write(pref)
+ self.exchange.to_wire(file, compress, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (preference, ) = struct.unpack('!H', wire[current : current + 2])
+ current += 2
+ rdlen -= 2
+ (exchange, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ exchange = exchange.relativize(origin)
+ return cls(rdclass, rdtype, preference, exchange)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.exchange = self.exchange.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ sp = struct.pack("!H", self.preference)
+ op = struct.pack("!H", other.preference)
+ v = cmp(sp, op)
+ if v == 0:
+ v = cmp(self.exchange, other.exchange)
+ return v
+
+class UncompressedMX(MXBase):
+ """Base class for rdata that is like an MX record, but whose name
+ is not compressed when convert to DNS wire format."""
+
+ def to_wire(self, file, compress = None, origin = None):
+ super(UncompressedMX, self).to_wire(file, None, origin)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: nsbase.py,v 1.13 2004/03/19 00:17:27 halley Exp $
+
+"""NS-like base classes."""
+
+import struct
+
+import dns.exception
+import dns.rdata
+import dns.name
+
+class NSBase(dns.rdata.Rdata):
+ """Base class for rdata that is like an NS record.
+
+ @ivar target: the target name of the rdata
+ @type target: dns.name.Name object"""
+
+ __slots__ = ['target']
+
+ def __init__(self, rdclass, rdtype, target):
+ super(NSBase, self).__init__(rdclass, rdtype)
+ self.target = target
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ target = self.target.choose_relativity(origin, relativize)
+ return str(target)
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ target = tok.get_name()
+ target = target.choose_relativity(origin, relativize)
+ tok.get_eol()
+ return cls(rdclass, rdtype, target)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ self.target.to_wire(file, compress, origin)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ (target, cused) = dns.name.from_wire(wire[: current + rdlen],
+ current)
+ if cused != rdlen:
+ raise dns.exception.FormError
+ if not origin is None:
+ target = target.relativize(origin)
+ return cls(rdclass, rdtype, target)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.target = self.target.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ return cmp(self.target, other.target)
+
+class UncompressedNS(NSBase):
+ """Base class for rdata that is like an NS record, but whose name
+ is not compressed when convert to DNS wire format."""
+
+ def to_wire(self, file, compress = None, origin = None):
+ super(UncompressedNS, self).to_wire(file, None, origin)
--- /dev/null
+# Copyright (C) 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: sigbase.py,v 1.2 2004/03/19 00:17:27 halley Exp $
+
+import calendar
+import struct
+import time
+
+import dns.dnssec
+import dns.exception
+import dns.rdata
+import dns.rdatatype
+
+class BadSigTime(dns.exception.DNSException):
+ """Raised when a SIG or RRSIG RR's time cannot be parsed."""
+ pass
+
+def sigtime_to_posixtime(what):
+ if len(what) != 14:
+ raise BadSigTime
+ year = int(what[0:4])
+ month = int(what[4:6])
+ day = int(what[6:8])
+ hour = int(what[8:10])
+ minute = int(what[10:12])
+ second = int(what[12:14])
+ return calendar.timegm((year, month, day, hour, minute, second,
+ 0, 0, 0))
+
+def posixtime_to_sigtime(what):
+ return time.strftime('%Y%m%d%H%M%S', time.gmtime(what))
+
+class SIGBase(dns.rdata.Rdata):
+ """SIG-like record base
+
+ @ivar type_covered: the rdata type this signature covers
+ @type type_covered: int
+ @ivar algorithm: the algorithm used for the sig
+ @type algorithm: int
+ @ivar labels: number of labels
+ @type labels: int
+ @ivar original_ttl: the original TTL
+ @type original_ttl: long
+ @ivar expiration: signature expiration time
+ @type expiration: long
+ @ivar inception: signature inception time
+ @type inception: long
+ @ivar key_tag: the key tag
+ @type key_tag: int
+ @ivar signer: the signer
+ @type signer: dns.name.Name object
+ @ivar signature: the signature
+ @type signature: string"""
+
+ __slots__ = ['type_covered', 'algorithm', 'labels', 'original_ttl',
+ 'expiration', 'inception', 'key_tag', 'signer',
+ 'signature']
+
+ def __init__(self, rdclass, rdtype, type_covered, algorithm, labels,
+ original_ttl, expiration, inception, key_tag, signer,
+ signature):
+ super(SIGBase, self).__init__(rdclass, rdtype)
+ self.type_covered = type_covered
+ self.algorithm = algorithm
+ self.labels = labels
+ self.original_ttl = original_ttl
+ self.expiration = expiration
+ self.inception = inception
+ self.key_tag = key_tag
+ self.signer = signer
+ self.signature = signature
+
+ def covers(self):
+ return self.type_covered
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ return '%s %d %d %d %s %s %d %s %s' % (
+ dns.rdatatype.to_text(self.type_covered),
+ self.algorithm,
+ self.labels,
+ self.original_ttl,
+ posixtime_to_sigtime(self.expiration),
+ posixtime_to_sigtime(self.inception),
+ self.key_tag,
+ self.signer,
+ dns.rdata._base64ify(self.signature)
+ )
+
+ def from_text(cls, rdclass, rdtype, tok, origin = None, relativize = True):
+ type_covered = dns.rdatatype.from_text(tok.get_string())
+ algorithm = dns.dnssec.algorithm_from_text(tok.get_string())
+ labels = tok.get_int()
+ original_ttl = tok.get_uint32()
+ expiration = sigtime_to_posixtime(tok.get_string())
+ inception = sigtime_to_posixtime(tok.get_string())
+ key_tag = tok.get_int()
+ signer = tok.get_name()
+ signer = signer.choose_relativity(origin, relativize)
+ chunks = []
+ while 1:
+ t = tok.get()
+ if t[0] == dns.tokenizer.EOL or t[0] == dns.tokenizer.EOF:
+ break
+ if t[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ chunks.append(t[1])
+ b64 = ''.join(chunks)
+ signature = b64.decode('base64_codec')
+ return cls(rdclass, rdtype, type_covered, algorithm, labels,
+ original_ttl, expiration, inception, key_tag, signer,
+ signature)
+
+ from_text = classmethod(from_text)
+
+ def to_wire(self, file, compress = None, origin = None):
+ header = struct.pack('!HBBIIIH', self.type_covered,
+ self.algorithm, self.labels,
+ self.original_ttl, self.expiration,
+ self.inception, self.key_tag)
+ file.write(header)
+ self.signer.to_wire(file, None, origin)
+ file.write(self.signature)
+
+ def from_wire(cls, rdclass, rdtype, wire, current, rdlen, origin = None):
+ header = struct.unpack('!HBBIIIH', wire[current : current + 18])
+ current += 18
+ rdlen -= 18
+ (signer, cused) = dns.name.from_wire(wire[: current + rdlen], current)
+ current += cused
+ rdlen -= cused
+ if not origin is None:
+ signer = signer.relativize(origin)
+ signature = wire[current : current + rdlen]
+ return cls(rdclass, rdtype, header[0], header[1], header[2],
+ header[3], header[4], header[5], header[6], signer,
+ signature)
+
+ from_wire = classmethod(from_wire)
+
+ def choose_relativity(self, origin = None, relativize = True):
+ self.signer = self.signer.choose_relativity(origin, relativize)
+
+ def _cmp(self, other):
+ hs = struct.pack('!HBBIIIH', self.type_covered,
+ self.algorithm, self.labels,
+ self.original_ttl, self.expiration,
+ self.inception, self.key_tag)
+ ho = struct.pack('!HBBIIIH', other.type_covered,
+ other.algorithm, other.labels,
+ other.original_ttl, other.expiration,
+ other.inception, other.key_tag)
+ v = cmp(hs, ho)
+ if v == 0:
+ v = cmp(self.signer, other.signer)
+ if v == 0:
+ v = cmp(self.signature, other.signature)
+ return v
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: renderer.py,v 1.13 2004/03/19 00:17:27 halley Exp $
+
+"""Help for building DNS wire format messages"""
+
+import cStringIO
+import struct
+import time
+
+import dns.exception
+import dns.tsig
+
+QUESTION = 0
+ANSWER = 1
+AUTHORITY = 2
+ADDITIONAL = 3
+
+class Renderer(object):
+ """Helper class for building DNS wire-format messages.
+
+ Most applications can use the higher-level L{dns.message.Message}
+ class and its to_wire() method to generate wire-format messages.
+ This class is for those applications which need finer control
+ over the generation of messages.
+
+ Typical use::
+
+ r = dns.renderer.Renderer(id=1, flags=0x80, max_size=512)
+ r.add_question(qname, qtype, qclass)
+ r.add_rrset(dns.renderer.ANSWER, rrset_1)
+ r.add_rrset(dns.renderer.ANSWER, rrset_2)
+ r.add_rrset(dns.renderer.AUTHORITY, ns_rrset)
+ r.add_edns(0, 0, 4096)
+ r.add_rrset(dns.renderer.ADDTIONAL, ad_rrset_1)
+ r.add_rrset(dns.renderer.ADDTIONAL, ad_rrset_2)
+ r.write_header()
+ r.add_tsig(keyname, secret, 300, 1, 0, '', request_mac)
+ wire = r.get_wire()
+
+ @ivar output: where rendering is written
+ @type output: cStringIO.StringIO object
+ @ivar id: the message id
+ @type id: int
+ @ivar flags: the message flags
+ @type flags: int
+ @ivar max_size: the maximum size of the message
+ @type max_size: int
+ @ivar origin: the origin to use when rendering relative names
+ @type origin: dns.name.Name object
+ @ivar compress: the compression table
+ @type compress: dict
+ @ivar section: the section currently being rendered
+ @type section: int (dns.renderer.QUESTION, dns.renderer.ANSWER,
+ dns.renderer.AUTHORITY, or dns.renderer.ADDITIONAL)
+ @ivar counts: list of the number of RRs in each section
+ @type counts: int list of length 4
+ @ivar mac: the MAC of the rendered message (if TSIG was used)
+ @type mac: string
+ """
+
+ def __init__(self, id=None, flags=0, max_size=65535, origin=None):
+ """Initialize a new renderer.
+
+ @param id: the message id
+ @type id: int
+ @param flags: the DNS message flags
+ @type flags: int
+ @param max_size: the maximum message size; the default is 65535.
+ If rendering results in a message greater than I{max_size},
+ then L{dns.exception.TooBig} will be raised.
+ @type max_size: int
+ @param origin: the origin to use when rendering relative names
+ @type origin: dns.name.Namem or None.
+ """
+
+ self.output = cStringIO.StringIO()
+ if id is None:
+ self.id = random.randint(0, 65535)
+ else:
+ self.id = id
+ self.flags = flags
+ self.max_size = max_size
+ self.origin = origin
+ self.compress = {}
+ self.section = QUESTION
+ self.counts = [0, 0, 0, 0]
+ self.output.write('\x00' * 12)
+ self.mac = ''
+
+ def _rollback(self, where):
+ """Truncate the output buffer at offset I{where}, and remove any
+ compression table entries that pointed beyond the truncation
+ point.
+
+ @param where: the offset
+ @type where: int
+ """
+
+ self.output.seek(where)
+ self.output.truncate()
+ keys_to_delete = []
+ for k, v in self.compress.iteritems():
+ if v >= where:
+ keys_to_delete.append(k)
+ for k in keys_to_delete:
+ del self.compress[k]
+
+ def _set_section(self, section):
+ """Set the renderer's current section.
+
+ Sections must be rendered order: QUESTION, ANSWER, AUTHORITY,
+ ADDITIONAL. Sections may be empty.
+
+ @param section: the section
+ @type section: int
+ @raises dns.exception.FormError: an attempt was made to set
+ a section value less than the current section.
+ """
+
+ if self.section != section:
+ if self.section > section:
+ raise dns.exception.FormError
+ self.section = section
+
+ def add_question(self, qname, rdtype, rdclass=dns.rdataclass.IN):
+ """Add a question to the message.
+
+ @param qname: the question name
+ @type qname: dns.name.Name
+ @param rdtype: the question rdata type
+ @type rdtype: int
+ @param rdclass: the question rdata class
+ @type rdclass: int
+ """
+
+ self._set_section(QUESTION)
+ before = self.output.tell()
+ qname.to_wire(self.output, self.compress, self.origin)
+ self.output.write(struct.pack("!HH", rdtype, rdclass))
+ after = self.output.tell()
+ if after >= self.max_size:
+ self._rollback(before)
+ raise dns.exception.TooBig
+ self.counts[QUESTION] += 1
+
+ def add_rrset(self, section, rrset, **kw):
+ """Add the rrset to the specified section.
+
+ Any keyword arguments are passed on to the rdataset's to_wire()
+ routine.
+
+ @param section: the section
+ @type section: int
+ @param rrset: the rrset
+ @type rrset: dns.rrset.RRset object
+ """
+
+ self._set_section(section)
+ before = self.output.tell()
+ n = rrset.to_wire(self.output, self.compress, self.origin, **kw)
+ after = self.output.tell()
+ if after >= self.max_size:
+ self._rollback(before)
+ raise dns.exception.TooBig
+ self.counts[section] += n
+
+ def add_rdataset(self, section, name, rdataset, **kw):
+ """Add the rdataset to the specified section, using the specified
+ name as the owner name.
+
+ Any keyword arguments are passed on to the rdataset's to_wire()
+ routine.
+
+ @param section: the section
+ @type section: int
+ @param name: the owner name
+ @type name: dns.name.Name object
+ @param rdataset: the rdataset
+ @type rdataset: dns.rdataset.Rdataset object
+ """
+
+ self._set_section(section)
+ before = self.output.tell()
+ n = rdataset.to_wire(name, self.output, self.compress, self.origin,
+ **kw)
+ after = self.output.tell()
+ if after >= self.max_size:
+ self._rollback(before)
+ raise dns.exception.TooBig
+ self.counts[section] += n
+
+ def add_edns(self, edns, ednsflags, payload):
+ """Add an EDNS OPT record to the message.
+
+ @param edns: The EDNS level to use.
+ @type edns: int
+ @param ednsflags: EDNS flag values.
+ @type ednsflags: int
+ @param payload: The EDNS sender's payload field, which is the maximum
+ size of UDP datagram the sender can handle.
+ @type payload: int
+ @see: RFC 2671
+ """
+
+ self._set_section(ADDITIONAL)
+ before = self.output.tell()
+ self.output.write(struct.pack('!BHHIH', 0, dns.rdatatype.OPT, payload,
+ ednsflags, 0))
+ after = self.output.tell()
+ if after >= self.max_size:
+ self._rollback(before)
+ raise dns.exception.TooBig
+ self.counts[ADDITIONAL] += 1
+
+ def add_tsig(self, keyname, secret, fudge, id, tsig_error, other_data,
+ request_mac):
+ """Add a TSIG signature to the message.
+
+ @param keyname: the TSIG key name
+ @type keyname: dns.name.Name object
+ @param secret: the secret to use
+ @type secret: string
+ @param fudge: TSIG time fudge; default is 300 seconds.
+ @type fudge: int
+ @param id: the message id to encode in the tsig signature
+ @type id: int
+ @param tsig_error: TSIG error code; default is 0.
+ @type tsig_error: int
+ @param other_data: TSIG other data.
+ @type other_data: string
+ @param request_mac: This message is a response to the request which
+ had the specified MAC.
+ @type request_mac: string
+ """
+
+ self._set_section(ADDITIONAL)
+ before = self.output.tell()
+ s = self.output.getvalue()
+ (tsig_rdata, self.mac, ctx) = dns.tsig.hmac_md5(s,
+ keyname,
+ secret,
+ int(time.time()),
+ fudge,
+ id,
+ tsig_error,
+ other_data,
+ request_mac)
+ keyname.to_wire(self.output, self.compress, self.origin)
+ self.output.write(struct.pack('!HHIH', dns.rdatatype.TSIG,
+ dns.rdataclass.ANY, 0, 0))
+ rdata_start = self.output.tell()
+ self.output.write(tsig_rdata)
+ after = self.output.tell()
+ assert after - rdata_start < 65536
+ if after >= self.max_size:
+ self._rollback(before)
+ raise dns.exception.TooBig
+ self.output.seek(rdata_start - 2)
+ self.output.write(struct.pack('!H', after - rdata_start))
+ self.counts[ADDITIONAL] += 1
+ self.output.seek(10)
+ self.output.write(struct.pack('!H', self.counts[ADDITIONAL]))
+ self.output.seek(0, 2)
+
+ def write_header(self):
+ """Write the DNS message header.
+
+ Writing the DNS message header is done asfter all sections
+ have been rendered, but before the optional TSIG signature
+ is added.
+ """
+
+ self.output.seek(0)
+ self.output.write(struct.pack('!HHHHHH', self.id, self.flags,
+ self.counts[0], self.counts[1],
+ self.counts[2], self.counts[3]))
+ self.output.seek(0, 2)
+
+ def get_wire(self):
+ """Return the wire format message.
+
+ @rtype: string
+ """
+
+ return self.output.getvalue()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: resolver.py,v 1.22 2004/03/19 00:17:27 halley Exp $
+
+"""DNS stub resolver.
+
+@var default_resolver: The default resolver object
+@type default_resolver: dns.resolver.Resolver object"""
+
+import socket
+import sys
+import time
+import types
+
+import dns.exception
+import dns.message
+import dns.name
+import dns.query
+import dns.rcode
+import dns.rdataclass
+import dns.rdatatype
+
+if sys.platform == 'win32':
+ import _winreg
+
+class NXDOMAIN(dns.exception.DNSException):
+ """The query name does not exist."""
+ pass
+
+# The definition of the Timeout exception has moved from here to the
+# dns.exception module. We keep dns.resolver.Timeout defined for
+# backwards compatibility.
+
+Timeout = dns.exception.Timeout
+
+class NoAnswer(dns.exception.DNSException):
+ """The response did not contain an answer to the question."""
+ pass
+
+class NoNameservers(dns.exception.DNSException):
+ """No non-broken nameservers are available to answer the query."""
+ pass
+
+class Answer(object):
+ """DNS stub resolver answer
+
+ Instances of this class bundle up the result of a successful DNS
+ resolution.
+
+ For convenience, the answer is iterable. "for a in answer" is
+ equivalent to "for a in answer.rrset".
+
+ Note that CNAMEs or DNAMEs in the response may mean that answer
+ node's name might not be the query name.
+
+ @ivar qname: The query name
+ @type qname: dns.name.Name object
+ @ivar rdtype: The query type
+ @type rdtype: int
+ @ivar rdclass: The query class
+ @type rdclass: int
+ @ivar response: The response message
+ @type response: dns.message.Message object
+ @ivar rrset: The answer
+ @type rrset: dns.rrset.RRset object
+ @ivar expiration: The time when the answer expires
+ @type expiration: float (seconds since the epoch)
+ """
+ def __init__(self, qname, rdtype, rdclass, response):
+ self.qname = qname
+ self.rdtype = rdtype
+ self.rdclass = rdclass
+ self.response = response
+ min_ttl = -1
+ rrset = None
+ for count in xrange(0, 15):
+ try:
+ rrset = response.find_rrset(response.answer, qname,
+ rdclass, rdtype)
+ if min_ttl == -1 or rrset.ttl < min_ttl:
+ min_ttl = rrset.ttl
+ break
+ except KeyError:
+ if rdtype != dns.rdatatype.CNAME:
+ try:
+ crrset = response.find_rrset(response.answer,
+ qname,
+ rdclass,
+ dns.rdatatype.CNAME)
+ if min_ttl == -1 or crrset.ttl < min_ttl:
+ min_ttl = crrset.ttl
+ for rd in crrset:
+ qname = rd.target
+ break
+ continue
+ except KeyError:
+ raise NoAnswer
+ raise NoAnswer
+ if rrset is None:
+ raise NoAnswer
+ self.rrset = rrset
+ self.expiration = time.time() + min_ttl
+
+ def __getattr__(self, attr):
+ if attr == 'name':
+ return self.rrset.name
+ elif attr == 'ttl':
+ return self.rrset.ttl
+ elif attr == 'covers':
+ return self.rrset.covers
+ elif attr == 'rdclass':
+ return self.rrset.rdclass
+ elif attr == 'rdtype':
+ return self.rrset.rdtype
+ else:
+ raise AttributeError, attr
+
+ def __len__(self):
+ return len(self.rrset)
+
+ def __iter__(self):
+ return iter(self.rrset)
+
+class Cache(object):
+ """Simple DNS answer cache.
+
+ @ivar data: A dictionary of cached data
+ @type data: dict
+ @ivar cleaning_interval: The number of seconds between cleanings. The
+ default is 300 (5 minutes).
+ @type cleaning_interval: float
+ @ivar next_cleaning: The time the cache should next be cleaned (in seconds
+ since the epoch.)
+ @type next_cleaning: float
+ """
+
+ def __init__(self, cleaning_interval=300.0):
+ """Initialize a DNS cache.
+
+ @param cleaning_interval: the number of seconds between periodic
+ cleanings. The default is 300.0
+ @type cleaning_interval: float.
+ """
+
+ self.data = {}
+ self.cleaning_interval = cleaning_interval
+ self.next_cleaning = time.time() + self.cleaning_interval
+
+ def maybe_clean(self):
+ """Clean the cache if it's time to do so."""
+
+ now = time.time()
+ if self.next_cleaning <= now:
+ keys_to_delete = []
+ for (k, v) in self.data.iteritems():
+ if v.expiration <= now:
+ keys_to_delete.append(k)
+ for k in keys_to_delete:
+ del self.data[k]
+ now = time.time()
+ self.next_cleaning = now + self.cleaning_interval
+
+ def get(self, key):
+ """Get the answer associated with I{key}. Returns None if
+ no answer is cached for the key.
+ @param key: the key
+ @type key: (dns.name.Name, int, int) tuple whose values are the
+ query name, rdtype, and rdclass.
+ @rtype: dns.resolver.Answer object or None
+ """
+
+ self.maybe_clean()
+ v = self.data.get(key)
+ if v is None or v.expiration <= time.time():
+ return None
+ return v
+
+ def put(self, key, value):
+ """Associate key and value in the cache.
+ @param key: the key
+ @type key: (dns.name.Name, int, int) tuple whose values are the
+ query name, rdtype, and rdclass.
+ @param value: The answer being cached
+ @type value: dns.resolver.Answer object
+ """
+
+ self.maybe_clean()
+ self.data[key] = value
+
+ def flush(self, key=None):
+ """Flush the cache.
+
+ If I{key} is specified, only that item is flushed. Otherwise
+ the entire cache is flushed.
+
+ @param key: the key to flush
+ @type key: (dns.name.Name, int, int) tuple or None
+ """
+
+ if not key is None:
+ if self.data.has_key(key):
+ del self.data[key]
+ else:
+ self.data = {}
+ self.next_cleaning = time.time() + self.cleaning_interval
+
+class Resolver(object):
+ """DNS stub resolver
+
+ @ivar domain: The domain of this host
+ @type domain: dns.name.Name object
+ @ivar nameservers: A list of nameservers to query. Each nameserver is
+ a string which contains the IP address of a nameserver.
+ @type nameservers: list of strings
+ @ivar search: The search list. If the query name is a relative name,
+ the resolver will construct an absolute query name by appending the search
+ names one by one to the query name.
+ @type search: list of dns.name.Name objects
+ @ivar port: The port to which to send queries. The default is 53.
+ @type port: int
+ @ivar timeout: The number of seconds to wait for a response from a
+ server, before timing out.
+ @type timeout: float
+ @ivar lifetime: The total number of seconds to spend trying to get an
+ answer to the question. If the lifetime expires, a Timeout exception
+ will occur.
+ @type lifetime: float
+ @ivar keyring: The TSIG keyring to use. The default is None.
+ @type keyring: dict
+ @ivar keyname: The TSIG keyname to use. The default is None.
+ @type keyname: dns.name.Name object
+ @ivar edns: The EDNS level to use. The default is -1, no Edns.
+ @type edns: int
+ @ivar ednsflags: The EDNS flags
+ @type ednsflags: int
+ @ivar payload: The EDNS payload size. The default is 0.
+ @type payload: int
+ @ivar cache: The cache to use. The default is None.
+ @type cache: dns.resolver.Cache object
+ """
+ def __init__(self, filename='/etc/resolv.conf', configure=True):
+ """Initialize a resolver instance.
+
+ @param filename: The filename of a configuration file in
+ standard /etc/resolv.conf format. This parameter is meaningful
+ only when I{configure} is true and the platform is POSIX.
+ @type filename: string or file object
+ @param configure: If True (the default), the resolver instance
+ is configured in the normal fashion for the operating system
+ the resolver is running on. (I.e. a /etc/resolv.conf file on
+ POSIX systems and from the registry on Windows systems.)
+ @type configure: bool"""
+
+ self.reset()
+ if configure:
+ if sys.platform == 'win32':
+ self.read_registry()
+ elif filename:
+ self.read_resolv_conf(filename)
+
+ def reset(self):
+ """Reset all resolver configuration to the defaults."""
+ self.domain = \
+ dns.name.Name(dns.name.from_text(socket.gethostname())[1:])
+ if len(self.domain) == 0:
+ self.domain = dns.name.root
+ self.nameservers = []
+ self.search = []
+ self.port = 53
+ self.timeout = 2.0
+ self.lifetime = 30.0
+ self.keyring = None
+ self.keyname = None
+ self.edns = -1
+ self.ednsflags = 0
+ self.payload = 0
+ self.cache = None
+
+ def read_resolv_conf(self, f):
+ """Process f as a file in the /etc/resolv.conf format. If f is
+ a string, it is used as the name of the file to open; otherwise it
+ is treated as the file itself."""
+ if isinstance(f, str) or isinstance(f, unicode):
+ f = open(f, 'r')
+ want_close = True
+ else:
+ want_close = False
+ try:
+ for l in f:
+ if len(l) == 0 or l[0] == '#' or l[0] == ';':
+ continue
+ tokens = l.split()
+ if len(tokens) == 0:
+ continue
+ if tokens[0] == 'nameserver':
+ self.nameservers.append(tokens[1])
+ elif tokens[0] == 'domain':
+ self.domain = dns.name.from_text(tokens[1])
+ elif tokens[0] == 'search':
+ for suffix in tokens[1:]:
+ self.search.append(dns.name.from_text(suffix))
+ finally:
+ if want_close:
+ f.close()
+ if len(self.nameservers) == 0:
+ self.nameservers.append('127.0.0.1')
+
+ def _config_win32_nameservers(self, nameservers, split_char=','):
+ """Configure a NameServer registry entry."""
+ # we call str() on nameservers to convert it from unicode to ascii
+ ns_list = str(nameservers).split(split_char)
+ for ns in ns_list:
+ if not ns in self.nameservers:
+ self.nameservers.append(ns)
+
+ def _config_win32_domain(self, domain):
+ """Configure a Domain registry entry."""
+ # we call str() on domain to convert it from unicode to ascii
+ self.domain = dns.name.from_text(str(domain))
+
+ def _config_win32_search(self, search):
+ """Configure a Search registry entry."""
+ # we call str() on search to convert it from unicode to ascii
+ search_list = str(search).split(',')
+ for s in search_list:
+ if not s in self.search:
+ self.search.append(dns.name.from_text(s))
+
+ def _config_win32_fromkey(self, key):
+ """Extract DNS info from a registry key."""
+ try:
+ servers, rtype = _winreg.QueryValueEx(key, 'NameServer')
+ except WindowsError:
+ servers = None
+ if servers:
+ self._config_win32_nameservers(servers)
+ try:
+ dom, rtype = _winreg.QueryValueEx(key, 'Domain')
+ if dom:
+ self._config_win32_domain(servers)
+ except WindowsError:
+ pass
+ else:
+ try:
+ servers, rtype = _winreg.QueryValueEx(key, 'DhcpNameServer')
+ except WindowsError:
+ servers = None
+ if servers:
+ # Annoyingly, the DhcpNameServer list is apparently space
+ # separated instead of comma separated like NameServer.
+ self._config_win32_nameservers(servers, ' ')
+ try:
+ dom, rtype = _winreg.QueryValueEx(key, 'DhcpDomain')
+ if dom:
+ self._config_win32_domain(servers)
+ except WindowsError:
+ pass
+ try:
+ search, rtype = _winreg.QueryValueEx(key, 'SearchList')
+ except WindowsError:
+ search = None
+ if search:
+ self._config_win32_search(servers)
+
+ def read_registry(self):
+ """Extract resolver configuration from the Windows registry."""
+ lm = _winreg.ConnectRegistry(None, _winreg.HKEY_LOCAL_MACHINE)
+ want_scan = False
+ try:
+ try:
+ # XP, 2000
+ tcp_params = _winreg.OpenKey(lm,
+ r'SYSTEM\CurrentControlSet'
+ r'\Services\Tcpip\Parameters')
+ want_scan = True
+ except EnvironmentError:
+ # ME
+ tcp_params = _winreg.OpenKey(lm,
+ r'SYSTEM\CurrentControlSet'
+ r'\Services\VxD\MSTCP')
+ try:
+ self._config_win32_fromkey(tcp_params)
+ finally:
+ tcp_params.Close()
+ if want_scan:
+ interfaces = _winreg.OpenKey(lm,
+ r'SYSTEM\CurrentControlSet'
+ r'\Services\Tcpip\Parameters'
+ r'\Interfaces')
+ try:
+ i = 0
+ while True:
+ try:
+ guid = _winreg.EnumKey(interfaces, i)
+ i += 1
+ key = _winreg.OpenKey(interfaces, guid)
+ try:
+ # enabled interfaces seem to have a non-empty
+ # NTEContextList
+ try:
+ (nte, ttype) = _winreg.QueryValueEx(key,
+ 'NTEContextList')
+ except WindowsError:
+ nte = None
+ if nte:
+ self._config_win32_fromkey(key)
+ finally:
+ key.Close()
+ except EnvironmentError:
+ break
+ finally:
+ interfaces.Close()
+ finally:
+ lm.Close()
+
+ def query(self, qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
+ tcp=False):
+ """Query nameservers to find the answer to the question.
+
+ The I{qname}, I{rdtype}, and I{rdclass} parameters may be objects
+ of the appropriate type, or strings that can be converted into objects
+ of the appropriate type. E.g. For I{rdtype} the integer 2 and the
+ the string 'NS' both mean to query for records with DNS rdata type NS.
+
+ @param qname: the query name
+ @type qname: dns.name.Name object or string
+ @param rdtype: the query type
+ @type rdtype: int or string
+ @param rdclass: the query class
+ @type rdclass: int or string
+ @param tcp: use TCP to make the query (default is False).
+ @type tcp: bool
+ @rtype: dns.resolver.Answer instance
+ @raises Timeout: no answers could be found in the specified lifetime
+ @raises NXDOMAIN: the query name does not exist
+ @raises NoAnswer: the response did not contain an answer
+ @raises NoNameservers: no non-broken nameservers are available to
+ answer the question."""
+
+ if isinstance(qname, str):
+ qname = dns.name.from_text(qname, None)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(rdclass, str):
+ rdclass = dns.rdataclass.from_text(rdclass)
+ qnames_to_try = []
+ if qname.is_absolute():
+ qnames_to_try.append(qname)
+ else:
+ if len(qname) > 1:
+ qnames_to_try.append(qname.concatenate(dns.name.root))
+ if self.search:
+ for suffix in self.search:
+ qnames_to_try.append(qname.concatenate(suffix))
+ else:
+ qnames_to_try.append(qname.concatenate(self.domain))
+ all_nxdomain = True
+ start = time.time()
+ for qname in qnames_to_try:
+ if self.cache:
+ answer = self.cache.get((qname, rdtype, rdclass))
+ if answer:
+ return answer
+ request = dns.message.make_query(qname, rdtype, rdclass)
+ if not self.keyname is None:
+ request.use_tsig(self.keyring, self.keyname)
+ request.use_edns(self.edns, self.ednsflags, self.payload)
+ response = None
+ #
+ # make a copy of the servers list so we can alter it later.
+ #
+ nameservers = self.nameservers[:]
+ while response is None:
+ if len(nameservers) == 0:
+ raise NoNameservers
+ for nameserver in nameservers:
+ now = time.time()
+ if now < start:
+ # Time going backwards is bad. Just give up.
+ raise Timeout
+ duration = now - start
+ if duration >= self.lifetime:
+ raise Timeout
+ timeout = min(self.lifetime - duration, self.timeout)
+ try:
+ if tcp:
+ response = dns.query.tcp(request, nameserver,
+ timeout, self.port)
+ else:
+ response = dns.query.udp(request, nameserver,
+ timeout, self.port)
+ except socket.error:
+ #
+ # Communication failure or timeout. Go to the
+ # next server
+ #
+ response = None
+ continue
+ except dns.query.UnexpectedSource:
+ #
+ # Who knows? Keep going.
+ #
+ response = None
+ continue
+ except dns.exception.FormError:
+ #
+ # We don't understand what this server is
+ # saying. Take it out of the mix and
+ # continue.
+ #
+ nameservers.remove(nameserver)
+ response = None
+ continue
+ rcode = response.rcode()
+ if rcode == dns.rcode.NOERROR or \
+ rcode == dns.rcode.NXDOMAIN:
+ break
+ response = None
+ if response.rcode() == dns.rcode.NXDOMAIN:
+ continue
+ all_nxdomain = False
+ break
+ if all_nxdomain:
+ raise NXDOMAIN
+ answer = Answer(qname, rdtype, rdclass, response)
+ if self.cache:
+ self.cache.put((qname, rdtype, rdclass), answer)
+ return answer
+
+ def use_tsig(self, keyring, keyname=None):
+ """Add a TSIG signature to the query.
+
+ @param keyring: The TSIG keyring to use; defaults to None.
+ @type keyring: dict
+ @param keyname: The name of the TSIG key to use; defaults to None.
+ The key must be defined in the keyring. If a keyring is specified
+ but a keyname is not, then the key used will be the first key in the
+ keyring. Note that the order of keys in a dictionary is not defined,
+ so applications should supply a keyname when a keyring is used, unless
+ they know the keyring contains only one key."""
+ self.keyring = keyring
+ if keyname is None:
+ self.keyname = self.keyring.keys()[0]
+ else:
+ self.keyname = keyname
+
+ def use_edns(self, edns, ednsflags, payload):
+ """Configure Edns.
+
+ @param edns: The EDNS level to use. The default is -1, no Edns.
+ @type edns: int
+ @param ednsflags: The EDNS flags
+ @type ednsflags: int
+ @param payload: The EDNS payload size. The default is 0.
+ @type payload: int"""
+
+ if edns is None:
+ edns = -1
+ self.edns = edns
+ self.ednsflags = ednsflags
+ self.payload = payload
+
+default_resolver = None
+
+def query(qname, rdtype=dns.rdatatype.A, rdclass=dns.rdataclass.IN,
+ tcp=False):
+ """Query nameservers to find the answer to the question.
+
+ This is a convenience function that uses the default resolver
+ object to make the query.
+ @see: L{dns.resolver.Resolver.query} for more information on the
+ parameters."""
+ global default_resolver
+ if default_resolver is None:
+ default_resolver = Resolver()
+ return default_resolver.query(qname, rdtype, rdclass, tcp)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rrset.py,v 1.10 2004/03/19 00:17:27 halley Exp $
+
+"""DNS RRsets (an RRset is a named rdataset)"""
+
+import dns.name
+import dns.rdataset
+import dns.rdataclass
+import dns.renderer
+
+class RRset(dns.rdataset.Rdataset):
+ """A DNS RRset (named rdataset).
+
+ RRset inherits from Rdataset, and RRsets can be treated as
+ Rdatasets in most cases. There are, however, a few notable
+ exceptions. RRsets have different to_wire() and to_text() method
+ arguments, reflecting the fact that RRsets always have an owner
+ name.
+ """
+
+ __slots__ = ['name', 'deleting']
+
+ def __init__(self, name, rdclass, rdtype, covers=dns.rdatatype.NONE,
+ deleting=None):
+ """Create a new RRset."""
+
+ super(RRset, self).__init__(rdclass, rdtype)
+ self.name = name
+ self.deleting = deleting
+
+ def _clone(self):
+ obj = super(RRset, self)._clone()
+ obj.name = self.name
+ obj.deleting = self.deleting
+ return obj
+
+ def __repr__(self):
+ if self.covers == 0:
+ ctext = ''
+ else:
+ ctext = '(' + dns.rdatatype.to_text(self.covers) + ')'
+ if not self.deleting is None:
+ dtext = ' delete=' + dns.rdataclass.to_text(self.deleting)
+ else:
+ dtext = ''
+ return '<DNS ' + str(self.name) + ' ' + \
+ dns.rdataclass.to_text(self.rdclass) + ' ' + \
+ dns.rdatatype.to_text(self.rdtype) + ctext + dtext + ' RRset>'
+
+ def __str__(self):
+ return self.to_text()
+
+ def __eq__(self, other):
+ """Two RRsets are equal if they have the same name and the same
+ rdataset
+
+ @rtype: bool"""
+ if not isinstance(other, RRset):
+ return False
+ if self.name != other.name:
+ return False
+ return super(RRset, self).__eq__(other)
+
+ def match(self, name, rdclass, rdtype, covers, deleting=None):
+ """Returns True if this rrset matches the specified class, type,
+ covers, and deletion state."""
+
+ if not super(RRset, self).match(rdclass, rdtype, covers):
+ return False
+ if self.name != name or self.deleting != deleting:
+ return False
+ return True
+
+ def to_text(self, origin=None, relativize=True, **kw):
+ """Convert the RRset into DNS master file format.
+
+ @see: L{dns.name.Name.choose_relativity} for more information
+ on how I{origin} and I{relativize} determine the way names
+ are emitted.
+
+ Any additional keyword arguments are passed on to the rdata
+ to_text() method.
+
+ @param origin: The origin for relative names, or None.
+ @type origin: dns.name.Name object
+ @param relativize: True if names should names be relativized
+ @type relativize: bool"""
+
+ return super(RRset, self).to_text(self.name, origin, relativize,
+ self.deleting, **kw)
+
+ def to_wire(self, file, compress=None, origin=None, **kw):
+ """Convert the RRset to wire format."""
+
+ return super(RRset, self).to_wire(self.name, file, compress, origin,
+ self.deleting, **kw)
+
+
+def from_text_list(name, ttl, rdclass, rdtype, text_rdatas):
+ """Create an RRset with the specified name, TTL, class, and type, and with
+ the specified list of rdatas in text format.
+
+ @rtype: dns.rrset.RRset object
+ """
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ if isinstance(rdclass, str):
+ rdclass = dns.rdataclass.from_text(rdclass)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ r = RRset(name, rdclass, rdtype)
+ r.update_ttl(ttl)
+ for t in text_rdatas:
+ rd = dns.rdata.from_text(r.rdclass, r.rdtype, t)
+ r.add(rd)
+ return r
+
+def from_text(name, ttl, rdclass, rdtype, *text_rdatas):
+ """Create an RRset with the specified name, TTL, class, and type and with
+ the specified rdatas in text format.
+
+ @rtype: dns.rrset.RRset object
+ """
+
+ return from_text_list(name, ttl, rdclass, rdtype, text_rdatas)
+
+def from_rdata_list(name, ttl, rdatas):
+ """Create an RRset with the specified name and TTL, and with
+ the specified list of rdata objects.
+
+ @rtype: dns.rrset.RRset object
+ """
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+
+ if len(rdatas) == 0:
+ raise ValueError, "rdata list must not be empty"
+ r = None
+ for rd in rdatas:
+ if r is None:
+ r = RRset(name, rd.rdclass, rd.rdtype)
+ r.update_ttl(ttl)
+ first_time = False
+ r.add(rd)
+ return r
+
+def from_rdata(name, ttl, *rdatas):
+ """Create an RRset with the specified name and TTL, and with
+ the specified rdata objects.
+
+ @rtype: dns.rrset.RRset object
+ """
+
+ return from_rdata_list(name, ttl, rdatas)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: set.py,v 1.6 2004/03/19 00:17:27 halley Exp $
+
+"""A simple Set class."""
+
+class Set(object):
+ """A simple set class.
+
+ Sets are not in Python until 2.3, and rdata are not immutable so
+ we cannot use sets.Set anyway. This class implements subset of
+ the 2.3 Set interface using a list as the container.
+
+ @ivar items: A list of the items which are in the set
+ @type items: list"""
+
+ __slots__ = ['items']
+
+ def __init__(self, items=None):
+ """Initialize the set.
+
+ @param items: the initial set of items
+ @type items: any iterable or None
+ """
+
+ self.items = []
+ if not items is None:
+ for item in items:
+ self.add(item)
+
+ def __repr__(self):
+ return "dns.simpleset.Set(%s)" % repr(self.items)
+
+ def add(self, item):
+ """Add an item to the set."""
+ if not item in self.items:
+ self.items.append(item)
+
+ def remove(self, item):
+ """Remove an item from the set."""
+ self.items.remove(item)
+
+ def discard(self, item):
+ """Remove an item from the set if present."""
+ try:
+ self.items.remove(item)
+ except ValueError:
+ pass
+
+ def _clone(self):
+ """Make a (shallow) copy of the set.
+
+ There is a 'clone protocol' that subclasses of this class
+ should use. To make a copy, first call your super's _clone()
+ method, and use the object returned as the new instance. Then
+ make shallow copies of the attributes defined in the subclass.
+
+ This protocol allows us to write the set algorithms that
+ return new instances (e.g. union) once, and keep using them in
+ subclasses.
+ """
+
+ cls = self.__class__
+ obj = cls.__new__(cls)
+ obj.items = list(self.items)
+ return obj
+
+ def __copy__(self):
+ """Make a (shallow) copy of the set."""
+ return self._clone()
+
+ def copy(self):
+ """Make a (shallow) copy of the set."""
+ return self._clone()
+
+ def union_update(self, other):
+ """Update the set, adding any elements from other which are not
+ already in the set.
+ @param other: the collection of items with which to update the set
+ @type other: Set object
+ """
+ if not isinstance(other, Set):
+ raise ValueError, 'other must be a Set instance'
+ if self is other:
+ return
+ for item in other.items:
+ self.add(item)
+
+ def intersection_update(self, other):
+ """Update the set, removing any elements from other which are not
+ in both sets.
+ @param other: the collection of items with which to update the set
+ @type other: Set object
+ """
+ if not isinstance(other, Set):
+ raise ValueError, 'other must be a Set instance'
+ if self is other:
+ return
+ # we make a copy of the list so that we can remove items from
+ # the list without breaking the iterator.
+ for item in list(self.items):
+ if item not in other.items:
+ self.items.remove(item)
+
+ def difference_update(self, other):
+ """Update the set, removing any elements from other which are in
+ the set.
+ @param other: the collection of items with which to update the set
+ @type other: Set object
+ """
+ if not isinstance(other, Set):
+ raise ValueError, 'other must be a Set instance'
+ if self is other:
+ self.items = []
+ else:
+ for item in other.items:
+ self.discard(item)
+
+ def union(self, other):
+ """Return a new set which is the union of I{self} and I{other}.
+
+ @param other: the other set
+ @type other: Set object
+ @rtype: the same type as I{self}
+ """
+
+ obj = self._clone()
+ obj.union_update(other)
+ return obj
+
+ def intersection(self, other):
+ """Return a new set which is the intersection of I{self} and I{other}.
+
+ @param other: the other set
+ @type other: Set object
+ @rtype: the same type as I{self}
+ """
+
+ obj = self._clone()
+ obj.intersection_update(other)
+ return obj
+
+ def difference(self, other):
+ """Return a new set which I{self} - I{other}, i.e. the items
+ in I{self} which are not also in I{other}.
+
+ @param other: the other set
+ @type other: Set object
+ @rtype: the same type as I{self}
+ """
+
+ obj = self._clone()
+ obj.difference_update(other)
+ return obj
+
+ def __or__(self, other):
+ return self.union(other)
+
+ def __and__(self, other):
+ return self.intersection(other)
+
+ def __add__(self, other):
+ return self.union(other)
+
+ def __sub__(self, other):
+ return self.difference(other)
+
+ def __ior__(self, other):
+ self.union_update(other)
+ return self
+
+ def __iand__(self, other):
+ self.intersection_update(other)
+ return self
+
+ def __iadd__(self, other):
+ self.union_update(other)
+ return self
+
+ def __isub__(self, other):
+ self.difference_update(other)
+ return self
+
+ def update(self, other):
+ """Update the set, adding any elements from other which are not
+ already in the set.
+ @param other: the collection of items with which to update the set
+ @type other: any iterable type"""
+ for item in other:
+ self.add(item)
+
+ def clear(self):
+ """Make the set empty."""
+ self.items = []
+
+ def __eq__(self, other):
+ # Yes, this is inefficient but the sets we're dealing with are
+ # usually quite small, so it shouldn't hurt too much.
+ for item in self.items:
+ if not item in other.items:
+ return False
+ for item in other.items:
+ if not item in self.items:
+ return False
+ return True
+
+ def __ne__(self, other):
+ return not self.__eq__(other)
+
+ def __len__(self):
+ return len(self.items)
+
+ def __iter__(self):
+ return iter(self.items)
+
+ def issubset(self, other):
+ """Is I{self} a subset of I{other}?
+
+ @rtype: bool
+ """
+
+ if not isinstance(other, Set):
+ raise ValueError, 'other must be a Set instance'
+ for item in self.items:
+ if not item in other.items:
+ return False
+ return True
+
+ def issuperset(self, other):
+ """Is I{self} a superset of I{other}?
+
+ @rtype: bool
+ """
+
+ if not isinstance(other, Set):
+ raise ValueError, 'other must be a Set instance'
+ for item in other.items:
+ if not item in self.items:
+ return False
+ return True
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: tokenizer.py,v 1.24 2004/03/19 00:17:27 halley Exp $
+
+"""Tokenize DNS master file format"""
+
+import cStringIO
+import sys
+
+import dns.exception
+import dns.name
+
+_DELIMITERS = {
+ ' ' : True,
+ '\t' : True,
+ '\n' : True,
+ ';' : True,
+ '(' : True,
+ ')' : True,
+ '"' : True }
+
+_QUOTING_DELIMITERS = { '"' : True }
+
+EOF = 0
+EOL = 1
+WHITESPACE = 2
+IDENTIFIER = 3
+QUOTED_STRING = 4
+COMMENT = 5
+DELIMITER = 6
+
+class UngetBufferFull(dns.exception.DNSException):
+ """Raised when an attempt is made to unget a token when the unget
+ buffer is full."""
+ pass
+
+class Tokenizer(object):
+ """A DNS master file format tokenizer.
+
+ A token is a (type, value) tuple, where I{type} is an int, and
+ I{value} is a string. The valid types are EOF, EOL, WHITESPACE,
+ IDENTIFIER, QUOTED_STRING, COMMENT, and DELIMITER.
+
+ @ivar file: The file to tokenize
+ @type file: file
+ @ivar ungotten_char: The most recently ungotten character, or None.
+ @type ungotten_char: string
+ @ivar ungotten_token: The most recently ungotten token, or None.
+ @type ungotten_token: string
+ @ivar multiline: The current multiline level. This value is increased
+ by one every time a '(' delimiter is read, and decreased by one every time
+ a ')' delimiter is read.
+ @type multiline: int
+ @ivar quoting: This variable is true if the tokenizer is currently
+ reading a quoted string.
+ @type quoting: bool
+ @ivar eof: This variable is true if the tokenizer has encountered EOF.
+ @type eof: bool
+ @ivar delimiters: The current delimiter dictionary.
+ @type delimiters: dict
+ @ivar line_number: The current line number
+ @type line_number: int
+ @ivar filename: A filename that will be returned by the L{where} method.
+ @type filename: string
+ """
+
+ def __init__(self, f=sys.stdin, filename=None):
+ """Initialize a tokenizer instance.
+
+ @param f: The file to tokenize. The default is sys.stdin.
+ This parameter may also be a string, in which case the tokenizer
+ will take its input from the contents of the string.
+ @type f: file or string
+ @param filename: the name of the filename that the L{where} method
+ will return.
+ @type filename: string
+ """
+
+ if isinstance(f, str):
+ f = cStringIO.StringIO(f)
+ if filename is None:
+ filename = '<string>'
+ else:
+ if filename is None:
+ if f is sys.stdin:
+ filename = '<stdin>'
+ else:
+ filename = '<file>'
+ self.file = f
+ self.ungotten_char = None
+ self.ungotten_token = None
+ self.multiline = 0
+ self.quoting = False
+ self.eof = False
+ self.delimiters = _DELIMITERS
+ self.line_number = 1
+ self.filename = filename
+
+ def _get_char(self):
+ """Read a character from input.
+ @rtype: string
+ """
+
+ if self.ungotten_char is None:
+ if self.eof:
+ c = ''
+ else:
+ c = self.file.read(1)
+ if c == '':
+ self.eof = True
+ elif c == '\n':
+ self.line_number += 1
+ else:
+ c = self.ungotten_char
+ self.ungotten_char = None
+ return c
+
+ def where(self):
+ """Return the current location in the input.
+
+ @rtype: (string, int) tuple. The first item is the filename of
+ the input, the second is the current line number.
+ """
+
+ return (self.filename, self.line_number)
+
+ def _unget_char(self, c):
+ """Unget a character.
+
+ The unget buffer for characters is only one character large; it is
+ an error to try to unget a character when the unget buffer is not
+ empty.
+
+ @param c: the character to unget
+ @type c: string
+ @raises UngetBufferFull: there is already an ungotten char
+ """
+
+ if not self.ungotten_char is None:
+ raise UngetBufferFull
+ self.ungotten_char = c
+
+ def skip_whitespace(self):
+ """Consume input until a non-whitespace character is encountered.
+
+ The non-whitespace character is then ungotten, and the number of
+ whitespace characters consumed is returned.
+
+ If the tokenizer is in multiline mode, then newlines are whitespace.
+
+ @rtype: int
+ """
+
+ skipped = 0
+ while True:
+ c = self._get_char()
+ if c != ' ' and c != '\t':
+ if (c != '\n') or not self.multiline:
+ self._unget_char(c)
+ return skipped
+ skipped += 1
+
+ def get(self, want_leading = False, want_comment = False):
+ """Get the next token.
+
+ @param want_leading: If True, return a WHITESPACE token if the
+ first character read is whitespace. The default is False.
+ @type want_leading: bool
+ @param want_comment: If True, return a COMMENT token if the
+ first token read is a comment. The default is False.
+ @type want_comment: bool
+ @rtype: (int, string) tuple
+ @raises dns.exception.UnexpectedEnd: input ended prematurely
+ @raises dns.exception.SyntaxError: input was badly formed
+ """
+
+ if not self.ungotten_token is None:
+ token = self.ungotten_token
+ self.ungotten_token = None
+ if token[0] == WHITESPACE:
+ if want_leading:
+ return token
+ elif token[0] == COMMENT:
+ if want_comment:
+ return token
+ else:
+ return token
+ skipped = self.skip_whitespace()
+ if want_leading and skipped > 0:
+ return (WHITESPACE, ' ')
+ token = ''
+ ttype = IDENTIFIER
+ while True:
+ c = self._get_char()
+ if c == '' or c in self.delimiters:
+ if c == '' and self.quoting:
+ raise dns.exception.UnexpectedEnd
+ if token == '' and ttype != QUOTED_STRING:
+ if c == '(':
+ self.multiline += 1
+ self.skip_whitespace()
+ continue
+ elif c == ')':
+ if not self.multiline > 0:
+ raise dns.exception.SyntaxError
+ self.multiline -= 1
+ self.skip_whitespace()
+ continue
+ elif c == '"':
+ if not self.quoting:
+ self.quoting = True
+ self.delimiters = _QUOTING_DELIMITERS
+ ttype = QUOTED_STRING
+ continue
+ else:
+ self.quoting = False
+ self.delimiters = _DELIMITERS
+ self.skip_whitespace()
+ continue
+ elif c == '\n':
+ return (EOL, '\n')
+ elif c == ';':
+ while 1:
+ c = self._get_char()
+ if c == '\n' or c == '':
+ break
+ token += c
+ if want_comment:
+ self._unget_char(c)
+ return (COMMENT, token)
+ elif c == '':
+ if self.multiline:
+ raise dns.exception.SyntaxError, \
+ 'unbalanced parentheses'
+ return (EOF, '')
+ elif self.multiline:
+ self.skip_whitespace()
+ token = ''
+ continue
+ else:
+ return (EOL, '\n')
+ else:
+ # This code exists in case we ever want a
+ # delimiter to be returned. It never produces
+ # a token currently.
+ token = c
+ ttype = DELIMITER
+ else:
+ self._unget_char(c)
+ break
+ elif self.quoting:
+ if c == '\\':
+ c = self._get_char()
+ if c == '':
+ raise dns.exception.UnexpectedEnd
+ if c.isdigit():
+ c2 = self._get_char()
+ if c2 == '':
+ raise dns.exception.UnexpectedEnd
+ c3 = self._get_char()
+ if c == '':
+ raise dns.exception.UnexpectedEnd
+ if not (c2.isdigit() and c3.isdigit()):
+ raise dns.exception.SyntaxError
+ c = chr(int(c) * 100 + int(c2) * 10 + int(c3))
+ elif c == '\n':
+ raise dns.exception.SyntaxError, 'newline in quoted string'
+ elif c == '\\':
+ #
+ # Treat \ followed by a delimiter as the
+ # delimiter, otherwise leave it alone.
+ #
+ c = self._get_char()
+ if c == '' or not c in self.delimiters:
+ self._unget_char(c)
+ c = '\\'
+ token += c
+ if token == '' and ttype != QUOTED_STRING:
+ if self.multiline:
+ raise dns.exception.SyntaxError, 'unbalanced parentheses'
+ ttype = EOF
+ return (ttype, token)
+
+ def unget(self, token):
+ """Unget a token.
+
+ The unget buffer for tokens is only one token large; it is
+ an error to try to unget a token when the unget buffer is not
+ empty.
+
+ @param token: the token to unget
+ @type token: string
+ @raises UngetBufferFull: there is already an ungotten char
+ """
+
+ if not self.ungotten_token is None:
+ raise UngetBufferFull
+ self.ungotten_token = token
+
+ def next(self):
+ """Return the next item in an iteration.
+ @rtype: (int, string)
+ """
+
+ token = self.get()
+ if token[0] == EOF:
+ raise StopIteration
+ return token
+
+ def __iter__(self):
+ return self
+
+ # Helpers
+
+ def get_int(self):
+ """Read the next token and interpret it as an integer.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: int
+ """
+
+ (ttype, value) = self.get()
+ if ttype != IDENTIFIER:
+ raise dns.exception.SyntaxError, 'expecting an identifier'
+ if not value.isdigit():
+ raise dns.exception.SyntaxError, 'expecting an integer'
+ return int(value)
+
+ def get_uint8(self):
+ """Read the next token and interpret it as an 8-bit unsigned
+ integer.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: int
+ """
+
+ value = self.get_int()
+ if value < 0 or value > 255:
+ raise dns.exception.SyntaxError, \
+ '%d is not an unsigned 8-bit integer' % value
+ return value
+
+ def get_uint16(self):
+ """Read the next token and interpret it as a 16-bit unsigned
+ integer.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: int
+ """
+
+ value = self.get_int()
+ if value < 0 or value > 65535:
+ raise dns.exception.SyntaxError, \
+ '%d is not an unsigned 16-bit integer' % value
+ return value
+
+ def get_uint32(self):
+ """Read the next token and interpret it as a 32-bit unsigned
+ integer.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: int
+ """
+
+ (ttype, value) = self.get()
+ if ttype != IDENTIFIER:
+ raise dns.exception.SyntaxError, 'expecting an identifier'
+ if not value.isdigit():
+ raise dns.exception.SyntaxError, 'expecting an integer'
+ value = long(value)
+ if value < 0 or value > 4294967296L:
+ raise dns.exception.SyntaxError, \
+ '%d is not an unsigned 32-bit integer' % value
+ return value
+
+ def get_string(self, origin=None):
+ """Read the next token and interpret it as a string.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: string
+ """
+
+ (ttype, t) = self.get()
+ if ttype != IDENTIFIER and ttype != QUOTED_STRING:
+ raise dns.exception.SyntaxError, 'expecting a string'
+ return t
+
+ def get_name(self, origin=None):
+ """Read the next token and interpret it as a DNS name.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: dns.name.Name object"""
+
+ (ttype, t) = self.get()
+ if ttype != IDENTIFIER:
+ raise dns.exception.SyntaxError, 'expecting an identifier'
+ return dns.name.from_text(t, origin)
+
+ def get_eol(self):
+ """Read the next token and raise an exception if it isn't EOL or
+ EOF.
+
+ @raises dns.exception.SyntaxError:
+ @rtype: string
+ """
+
+ (ttype, t) = self.get()
+ if ttype != EOL and ttype != EOF:
+ raise dns.exception.SyntaxError, \
+ 'expected EOL or EOF, got %d "%s"' % (ttype, t)
+ return t
--- /dev/null
+# Copyright (C) 2001-2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: tsig.py,v 1.10 2004/03/19 00:17:27 halley Exp $
+
+"""DNS TSIG support."""
+
+import hmac
+import struct
+
+import dns.exception
+import dns.rdataclass
+import dns.name
+
+class BadTime(dns.exception.DNSException):
+ """Raised if the current time is not within the TSIG's validity time."""
+ pass
+
+class BadSignature(dns.exception.DNSException):
+ """Raised if the TSIG signature fails to verify."""
+ pass
+
+_alg_name = dns.name.from_text('HMAC-MD5.SIG-ALG.REG.INT.').to_digestable()
+
+def hmac_md5(wire, keyname, secret, time, fudge, original_id, error,
+ other_data, request_mac, ctx=None, multi=False, first=True):
+ """Return a (tsig_rdata, mac, ctx) tuple containing the HMAC-MD5 TSIG rdata
+ for the input parameters, the HMAC-MD5 MAC calculated by applying the
+ TSIG signature algorithm, and the TSIG digest context.
+ @rtype: (string, string, hmac.HMAC object)
+ @raises ValueError: I{other_data} is too long
+ """
+
+ if first:
+ ctx = hmac.new(secret)
+ ml = len(request_mac)
+ if ml > 0:
+ ctx.update(struct.pack('!H', ml))
+ ctx.update(request_mac)
+ id = struct.pack('!H', original_id)
+ ctx.update(id)
+ ctx.update(wire[2:])
+ if first:
+ ctx.update(keyname.to_digestable())
+ ctx.update(struct.pack('!H', dns.rdataclass.ANY))
+ ctx.update(struct.pack('!I', 0))
+ long_time = time + 0L
+ upper_time = (long_time >> 32) & 0xffffL
+ lower_time = long_time & 0xffffffffL
+ time_mac = struct.pack('!HIH', upper_time, lower_time, fudge)
+ pre_mac = _alg_name + time_mac
+ ol = len(other_data)
+ if ol > 65535:
+ raise ValueError, 'TSIG Other Data is > 65535 bytes'
+ post_mac = struct.pack('!HH', error, ol) + other_data
+ if first:
+ ctx.update(pre_mac)
+ ctx.update(post_mac)
+ else:
+ ctx.update(time_mac)
+ mac = ctx.digest()
+ mpack = struct.pack('!H', len(mac))
+ tsig_rdata = pre_mac + mpack + mac + id + post_mac
+ if multi:
+ ctx = hmac.new(secret)
+ ml = len(mac)
+ ctx.update(struct.pack('!H', ml))
+ ctx.update(mac)
+ else:
+ ctx = None
+ return (tsig_rdata, mac, ctx)
+
+def validate(wire, keyname, secret, now, request_mac, tsig_start, tsig_rdata,
+ tsig_rdlen, ctx=None, multi=False, first=True):
+ """Validate the specified TSIG rdata against the other input parameters.
+
+ @raises FormError: The TSIG is badly formed.
+ @raises BadTime: There is too much time skew between the client and the
+ server.
+ @raises BadSignature: The TSIG signature did not validate
+ @rtype: hmac.HMAC object"""
+
+ (adcount,) = struct.unpack("!H", wire[10:12])
+ if adcount == 0:
+ raise dns.exception.FormError
+ adcount -= 1
+ new_wire = wire[0:10] + struct.pack("!H", adcount) + wire[12:tsig_start]
+ current = tsig_rdata
+ (aname, used) = dns.name.from_wire(wire, current)
+ current = current + used
+ (upper_time, lower_time, fudge, mac_size) = \
+ struct.unpack("!HIHH", wire[current:current + 10])
+ time = ((upper_time + 0L) << 32) + (lower_time + 0L)
+ current += 10
+ mac = wire[current:current + mac_size]
+ current += mac_size
+ (original_id, error, other_size) = \
+ struct.unpack("!HHH", wire[current:current + 6])
+ current += 6
+ other_data = wire[current:current + other_size]
+ current += other_size
+ if current != tsig_rdata + tsig_rdlen:
+ raise dns.exception.FormError
+ time_low = time - fudge
+ time_high = time + fudge
+ if now < time_low or now > time_high:
+ raise BadTime
+ (junk, our_mac, ctx) = hmac_md5(new_wire, keyname, secret, time, fudge,
+ original_id, error, other_data,
+ request_mac, ctx, multi, first)
+ if (our_mac != mac):
+ raise BadSignature
+ return ctx
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: tsigkeyring.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+"""A place to store TSIG keys."""
+
+import base64
+
+import dns.name
+
+def from_text(textring):
+ """Convert a dictionary containing (textual DNS name, base64 secret) pairs
+ into a binary keyring which has (dns.name.Name, binary secret) pairs.
+ @rtype: dict"""
+
+ keyring = {}
+ for keytext in textring:
+ keyname = dns.name.from_text(keytext)
+ secret = base64.decodestring(textring[keytext])
+ keyring[keyname] = secret
+ return keyring
+
+def to_text(keyring):
+ """Convert a dictionary containing (dns.name.Name, binary secret) pairs
+ into a text keyring which has (textual DNS name, base64 secret) pairs.
+ @rtype: dict"""
+
+ textring = {}
+ for keyname in keyring:
+ keytext = dns.name.to_text(keyname)
+ secret = base64.encodestring(keyring[keyname])
+ textring[keytext] = secret
+ return textring
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ttl.py,v 1.2 2004/03/19 00:17:27 halley Exp $
+
+"""DNS TTL conversion."""
+
+import dns.exception
+
+class BadTTL(dns.exception.SyntaxError):
+ pass
+
+def from_text(text):
+ """Convert the text form of a TTL to an integer.
+
+ The BIND 8 units syntax for TTLs (e.g. '1w6d4h3m10s') is supported.
+
+ @param text: the textual TTL
+ @type text: string
+ @raises dns.ttl.BadTTL: the TTL is not well-formed
+ @rtype: int
+ """
+
+ if text.isdigit():
+ return int(text)
+ if not text[0].isdigit():
+ raise BadTTL
+ total = 0
+ current = 0
+ for c in text:
+ if c.isdigit():
+ current *= 10
+ current += int(c)
+ else:
+ c = c.lower()
+ if c == 'w':
+ total += current * 604800
+ elif c == 'd':
+ total += current * 86400
+ elif c == 'h':
+ total += current * 3600
+ elif c == 'm':
+ total += current * 60
+ elif c == 's':
+ total += current
+ else:
+ raise BadTTL, "unknown unit '%s'" % c
+ current = 0
+ if not current == 0:
+ raise BadTTL, "trailing integer"
+ return total
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: update.py,v 1.15 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Dynamic Update Support"""
+
+import dns.message
+import dns.name
+import dns.opcode
+import dns.rdata
+import dns.rdataclass
+import dns.rdataset
+
+class Update(dns.message.Message):
+ def __init__(self, zone, rdclass=dns.rdataclass.IN, keyring=None,
+ keyname=None):
+ """Initialize a new DNS Update object.
+
+ @param zone: The zone which is being updated.
+ @type zone: A dns.name.Name or string
+ @param rdclass: The class of the zone; defaults to dns.rdataclass.IN.
+ @type rdclass: An int designating the class, or a string whose value
+ is the name of a class.
+ @param keyring: The TSIG keyring to use; defaults to None.
+ @type keyring: dict
+ @param keyname: The name of the TSIG key to use; defaults to None.
+ The key must be defined in the keyring. If a keyring is specified
+ but a keyname is not, then the key used will be the first key in the
+ keyring. Note that the order of keys in a dictionary is not defined,
+ so applications should supply a keyname when a keyring is used, unless
+ they know the keyring contains only one key.
+ @type keyname: dns.name.Name or string
+ """
+ super(Update, self).__init__()
+ self.flags |= dns.opcode.to_flags(dns.opcode.UPDATE)
+ if isinstance(zone, str):
+ zone = dns.name.from_text(zone)
+ else:
+ zone = zone.copy()
+ self.origin = zone
+ if isinstance(rdclass, str):
+ rdclass = dns.rdataclass.from_text(rdclass)
+ self.zone_rdclass = rdclass
+ self.find_rrset(self.question, self.origin, rdclass, dns.rdatatype.SOA,
+ create=True, force_unique=True)
+ if not keyring is None:
+ self.use_tsig(keyring, keyname)
+
+ def _add_rr(self, name, ttl, rd, deleting=None, section=None):
+ """Add a single RR to the update section."""
+
+ if section is None:
+ section = self.authority
+ covers = rd.covers()
+ rrset = self.find_rrset(section, name, self.zone_rdclass, rd.rdtype,
+ covers, deleting, True, True)
+ rrset.add(rd, ttl)
+
+ def _add(self, replace, section, name, *args):
+ """Add records. The first argument is the replace mode. If
+ false, RRs are added to an existing RRset; if true, the RRset
+ is replaced with the specified contents. The second
+ argument is the section to add to. The third argument
+ is always a name. The other arguments can be:
+
+ - rdataset...
+
+ - ttl, rdata...
+
+ - ttl, rdtype, string..."""
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ if isinstance(args[0], dns.rdataset.Rdataset):
+ for rds in args:
+ if replace:
+ self.delete(name, rds.rdtype)
+ for rd in rds:
+ self._add_rr(name, rds.ttl, rd, section=section)
+ else:
+ args = list(args)
+ ttl = int(args.pop(0))
+ if isinstance(args[0], dns.rdata.Rdata):
+ if replace:
+ self.delete(name, args[0].rdtype)
+ for rd in args:
+ self._add_rr(name, ttl, rd, section=section)
+ else:
+ rdtype = args.pop(0)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if replace:
+ self.delete(name, rdtype)
+ for s in args:
+ rd = dns.rdata.from_text(self.zone_rdclass, rdtype, s,
+ self.origin)
+ self._add_rr(name, ttl, rd, section=section)
+
+ def add(self, name, *args):
+ """Add records. The first argument is always a name. The other
+ arguments can be:
+
+ - rdataset...
+
+ - ttl, rdata...
+
+ - ttl, rdtype, string..."""
+ self._add(False, self.authority, name, *args)
+
+ def delete(self, name, *args):
+ """Delete records. The first argument is always a name. The other
+ arguments can be:
+
+ - I{nothing}
+
+ - rdataset...
+
+ - rdata...
+
+ - rdtype, [string...]"""
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ if len(args) == 0:
+ rrset = self.find_rrset(self.authority, name, dns.rdataclass.ANY,
+ dns.rdatatype.ANY, dns.rdatatype.NONE,
+ dns.rdatatype.ANY, True, True)
+ elif isinstance(args[0], dns.rdataset.Rdataset):
+ for rds in args:
+ for rd in rds:
+ self._add_rr(name, 0, rd, dns.rdatatype.NONE)
+ else:
+ args = list(args)
+ if isinstance(args[0], dns.rdata.Rdata):
+ for rd in args:
+ self._add_rr(name, 0, rd, dns.rdatatype.NONE)
+ else:
+ rdtype = args.pop(0)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if len(args) == 0:
+ rrset = self.find_rrset(self.authority, name,
+ self.zone_rdclass, rdtype,
+ dns.rdatatype.NONE,
+ dns.rdataclass.ANY,
+ True, True)
+ else:
+ for s in args:
+ rd = dns.rdata.from_text(self.zone_rdclass, rdtype, s,
+ self.origin)
+ self._add_rr(name, 0, rd, dns.rdataclass.NONE)
+
+ def replace(self, name, *args):
+ """Replace records. The first argument is always a name. The other
+ arguments can be:
+
+ - rdataset...
+
+ - ttl, rdata...
+
+ - ttl, rdtype, string...
+
+ Note that if you want to replace the entire node, you should do
+ a delete of the name followed by one or more calls to add."""
+
+ self._add(True, self.authority, name, *args)
+
+ def present(self, name, *args):
+ """Require that an owner name (and optionally an rdata type,
+ or specific rdataset) exists as a prerequisite to the
+ execution of the update. The first argument is always a name.
+ The other arguments can be:
+
+ - rdataset...
+
+ - rdata...
+
+ - rdtype, string..."""
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ if len(args) == 0:
+ rrset = self.find_rrset(self.answer, name,
+ dns.rdataclass.ANY, dns.rdatatype.ANY,
+ dns.rdatatype.NONE, None,
+ True, True)
+ elif isinstance(args[0], dns.rdataset.Rdataset) or \
+ isinstance(args[0], dns.rdata.Rdata) or \
+ len(args) > 1:
+ if len(args) > 1:
+ # Add a 0 TTL
+ args = list(args)
+ args.insert(0, 0)
+ self._add(False, self.answer, name, *args)
+ else:
+ rdtype = args[0]
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ rrset = self.find_rrset(self.answer, name,
+ dns.rdataclass.ANY, rdtype,
+ dns.rdatatype.NONE, None,
+ True, True)
+
+ def absent(self, name, rdtype=None):
+ """Require that an owner name (and optionally an rdata type) does
+ not exist as a prerequisite to the execution of the update."""
+
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ if rdtype is None:
+ rrset = self.find_rrset(self.answer, name,
+ dns.rdataclass.NONE, dns.rdatatype.ANY,
+ dns.rdatatype.NONE, None,
+ True, True)
+ else:
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ rrset = self.find_rrset(self.answer, name,
+ dns.rdataclass.NONE, rdtype,
+ dns.rdatatype.NONE, None,
+ True, True)
+
+ def to_wire(self, origin=None, max_size=65535):
+ """Return a string containing the update in DNS compressed wire
+ format.
+ @rtype: string"""
+ if origin is None:
+ origin = self.origin
+ return super(Update, self).to_wire(origin, max_size)
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: version.py,v 1.20 2004/03/19 00:17:27 halley Exp $
+
+"""dnspython release version information."""
+
+MAJOR = 1
+MINOR = 3
+MICRO = 0
+RELEASELEVEL = 0x0f
+SERIAL = 0
+
+if RELEASELEVEL == 0x0f:
+ version = '%d.%d.%d' % (MAJOR, MINOR, MICRO)
+elif RELEASELEVEL == 0x00:
+ version = '%d.%d.%dx%d' % \
+ (MAJOR, MINOR, MICRO, SERIAL)
+else:
+ version = '%d.%d.%d%x%d' % \
+ (MAJOR, MINOR, MICRO, RELEASELEVEL, SERIAL)
+
+hexversion = MAJOR << 24 | MINOR << 16 | MICRO << 8 | RELEASELEVEL << 4 | \
+ SERIAL
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: zone.py,v 1.45 2004/03/19 00:17:27 halley Exp $
+
+"""DNS Zones."""
+
+from __future__ import generators
+
+import sys
+
+import dns.exception
+import dns.name
+import dns.node
+import dns.rdataclass
+import dns.rdatatype
+import dns.rdata
+import dns.tokenizer
+import dns.ttl
+
+class BadZone(dns.exception.DNSException):
+ """The zone is malformed."""
+ pass
+
+class NoSOA(BadZone):
+ """The zone has no SOA RR at its origin."""
+ pass
+
+class NoNS(BadZone):
+ """The zone has no NS RRset at its origin."""
+ pass
+
+class Zone(object):
+ """A DNS zone.
+
+ A Zone is a mapping from names to nodes. The zone object may be
+ treated like a Python dictionary, e.g. zone[name] will retrieve
+ the node associated with that name. The I{name} may be a
+ dns.name.Name object, or it may be a string. In the either case,
+ if the name is relative it is treated as relative to the origin of
+ the zone.
+
+ @ivar rdclass: The zone's rdata class; the default is class IN.
+ @type rdclass: int
+ @ivar origin: The origin of the zone.
+ @type origin: dns.name.Name object
+ @ivar nodes: A dictionary mapping the names of nodes in the zone to the
+ nodes themselves.
+ @type nodes: dict
+ @ivar relativize: should names in the zone be relativized?
+ @type relativize: bool
+ @cvar node_factory: the factory used to create a new node
+ @type node_factory: class or callable
+ """
+
+ node_factory = dns.node.Node
+
+ __slots__ = ['rdclass', 'origin', 'nodes', 'relativize']
+
+ def __init__(self, origin, rdclass=dns.rdataclass.IN, relativize=True):
+ """Initialize a zone object.
+
+ @param origin: The origin of the zone.
+ @type origin: dns.name.Name object
+ @param rdclass: The zone's rdata class; the default is class IN.
+ @type rdclass: int"""
+
+ self.rdclass = rdclass
+ self.origin = origin
+ self.nodes = {}
+ self.relativize = relativize
+
+ def __eq__(self, other):
+ """Two zones are equal if they have the same origin, class, and
+ nodes.
+ @rtype: bool
+ """
+
+ if not isinstance(other, Zone):
+ return False
+ if self.rdclass != other.rdclass or \
+ self.origin != other.origin or \
+ self.nodes != other.nodes:
+ return False
+ return True
+
+ def __ne__(self, other):
+ """Are two zones not equal?
+ @rtype: bool
+ """
+
+ return not self.__eq__(other)
+
+ def _validate_name(self, name):
+ if isinstance(name, str):
+ name = dns.name.from_text(name, None)
+ elif not isinstance(name, dns.name.Name):
+ raise KeyError, \
+ "name parameter must be convertable to a DNS name"
+ if name.is_absolute():
+ if not name.is_subdomain(self.origin):
+ raise KeyError, \
+ "name parameter must be a subdomain of the zone origin"
+ if self.relativize:
+ name = name.relativize(self.origin)
+ return name
+
+ def __getitem__(self, key):
+ key = self._validate_name(key)
+ return self.nodes[key]
+
+ def __setitem__(self, key, value):
+ key = self._validate_name(key)
+ self.nodes[key] = value
+
+ def __delitem__(self, key):
+ key = self._validate_name(key)
+ del self.nodes[key]
+
+ def __iter__(self):
+ return self.nodes.iterkeys()
+
+ def iterkeys(self):
+ return self.nodes.iterkeys()
+
+ def keys(self):
+ return self.nodes.keys()
+
+ def itervalues(self):
+ return self.nodes.itervalues()
+
+ def values(self):
+ return self.nodes.values()
+
+ def iteritems(self):
+ return self.nodes.iteritems()
+
+ def items(self):
+ return self.nodes.items()
+
+ def get(self, key):
+ key = self._validate_name(key)
+ return self.nodes.get(key)
+
+ def __contains__(self, other):
+ return other in self.nodes
+
+ def find_node(self, name, create=False):
+ """Find a node in the zone, possibly creating it.
+
+ @param name: the name of the node to find
+ @type name: dns.name.Name object or string
+ @param create: should the node be created if it doesn't exist?
+ @type create: bool
+ @raises KeyError: the name is not known and create was not specified.
+ @rtype dns.node.Node object
+ """
+
+ name = self._validate_name(name)
+ node = self.nodes.get(name)
+ if node is None:
+ if not create:
+ raise KeyError
+ node = self.node_factory()
+ self.nodes[name] = node
+ return node
+
+ def get_node(self, name, create=False):
+ """Get a node in the zone, possibly creating it.
+
+ This method is like L{find_node}, except it returns None instead
+ of raising an exception if the node does not exist and creation
+ has not been requested.
+
+ @param name: the name of the node to find
+ @type name: dns.name.Name object or string
+ @param create: should the node be created if it doesn't exist?
+ @type create: bool
+ @rtype dns.node.Node object or None
+ """
+
+ try:
+ node = self.find_node(name, create)
+ except KeyError:
+ node = None
+ return node
+
+ def delete_node(self, name):
+ """Delete the specified node if it exists.
+
+ It is not an error if the node does not exist.
+ """
+
+ name = self._validate_name(name)
+ if self.nodes.has_key(name):
+ del self.nodes[name]
+
+ def find_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE,
+ create=False):
+ """Look for rdata with the specified name and type in the zone,
+ and return an rdataset encapsulating it.
+
+ The I{name}, I{rdtype}, and I{covers} parameters may be
+ strings, in which case they will be converted to their proper
+ type.
+
+ The rdataset returned is not a copy; changes to it will change
+ the zone.
+
+ KeyError is raised if the name or type are not found.
+ Use L{get_rdataset} if you want to have None returned instead.
+
+ @param name: the owner name to look for
+ @type name: DNS.name.Name object or string
+ @param rdtype: the rdata type desired
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ @param create: should the node and rdataset be created if they do not
+ exist?
+ @type create: bool
+ @raises KeyError: the node or rdata could not be found
+ @rtype: dns.rrset.RRset object
+ """
+
+ name = self._validate_name(name)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(covers, str):
+ covers = dns.rdatatype.from_text(covers)
+ node = self.find_node(name, create)
+ return node.find_rdataset(self.rdclass, rdtype, covers, create)
+
+ def get_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE,
+ create=False):
+ """Look for rdata with the specified name and type in the zone,
+ and return an rdataset encapsulating it.
+
+ The I{name}, I{rdtype}, and I{covers} parameters may be
+ strings, in which case they will be converted to their proper
+ type.
+
+ The rdataset returned is not a copy; changes to it will change
+ the zone.
+
+ None is returned if the name or type are not found.
+ Use L{find_rdataset} if you want to have KeyError raised instead.
+
+ @param name: the owner name to look for
+ @type name: DNS.name.Name object or string
+ @param rdtype: the rdata type desired
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ @param create: should the node and rdataset be created if they do not
+ exist?
+ @type create: bool
+ @rtype: dns.rrset.RRset object
+ """
+
+ try:
+ rdataset = self.find_rdataset(name, rdtype, covers, create)
+ except KeyError:
+ rdataset = None
+ return rdataset
+
+ def delete_rdataset(self, name, rdtype, covers=dns.rdatatype.NONE):
+ """Delete the rdataset matching I{rdtype} and I{covers}, if it
+ exists at the node specified by I{name}.
+
+ The I{name}, I{rdtype}, and I{covers} parameters may be
+ strings, in which case they will be converted to their proper
+ type.
+
+ It is not an error if the node does not exist, or if there is no
+ matching rdataset at the node.
+
+ If the node has no rdatasets after the deletion, it will itself
+ be deleted.
+
+ @param name: the owner name to look for
+ @type name: DNS.name.Name object or string
+ @param rdtype: the rdata type desired
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ """
+
+ name = self._validate_name(name)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(covers, str):
+ covers = dns.rdatatype.from_text(covers)
+ node = self.get_node(name)
+ if not node is None:
+ node.delete_rdataset(self.rdclass, rdtype, covers)
+ if len(node) == 0:
+ self.delete_node(name)
+
+ def replace_rdataset(self, name, replacement):
+ """Replace an rdataset at name.
+
+ It is not an error if there is no rdataset matching I{replacement}.
+
+ Ownership of the I{replacement} object is transferred to the zone;
+ in other words, this method does not store a copy of I{replacement}
+ at the node, it stores I{replacement} itself.
+
+ If the I{name} node does not exist, it is created.
+
+ @param name: the owner name
+ @type name: DNS.name.Name object or string
+ @param replacement: the replacement rdataset
+ @type replacement: dns.rdataset.Rdataset
+ """
+
+ if replacement.rdclass != self.rdclass:
+ raise ValueError, 'replacement.rdclass != zone.rdclass'
+ node = self.find_node(name, True)
+ node.replace_rdataset(replacement)
+
+ def find_rrset(self, name, rdtype, covers=dns.rdatatype.NONE):
+ """Look for rdata with the specified name and type in the zone,
+ and return an RRset encapsulating it.
+
+ The I{name}, I{rdtype}, and I{covers} parameters may be
+ strings, in which case they will be converted to their proper
+ type.
+
+ This method is less efficient than the similar
+ L{find_rdataset} because it creates an RRset instead of
+ returning the matching rdataset. It may be more convenient
+ for some uses since it returns an object which binds the owner
+ name to the rdata.
+
+ This method may not be used to create new nodes or rdatasets;
+ use L{find_rdataset} instead.
+
+ KeyError is raised if the name or type are not found.
+ Use L{get_rrset} if you want to have None returned instead.
+
+ @param name: the owner name to look for
+ @type name: DNS.name.Name object or string
+ @param rdtype: the rdata type desired
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ @raises KeyError: the node or rdata could not be found
+ @rtype: dns.rrset.RRset object
+ """
+
+ name = self._validate_name(name)
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(covers, str):
+ covers = dns.rdatatype.from_text(covers)
+ rdataset = self.nodes[name].find_rdataset(self.rdclass, rdtype, covers)
+ rrset = dns.rrset.RRset(name, self.rdclass, rdtype, covers)
+ rrset.update(rdataset)
+ return rrset
+
+ def get_rrset(self, name, rdtype, covers=dns.rdatatype.NONE):
+ """Look for rdata with the specified name and type in the zone,
+ and return an RRset encapsulating it.
+
+ The I{name}, I{rdtype}, and I{covers} parameters may be
+ strings, in which case they will be converted to their proper
+ type.
+
+ This method is less efficient than the similar L{get_rdataset}
+ because it creates an RRset instead of returning the matching
+ rdataset. It may be more convenient for some uses since it
+ returns an object which binds the owner name to the rdata.
+
+ This method may not be used to create new nodes or rdatasets;
+ use L{find_rdataset} instead.
+
+ None is returned if the name or type are not found.
+ Use L{find_rrset} if you want to have KeyError raised instead.
+
+ @param name: the owner name to look for
+ @type name: DNS.name.Name object or string
+ @param rdtype: the rdata type desired
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ @rtype: dns.rrset.RRset object
+ """
+
+ try:
+ rrset = self.find_rrset(name, rdtype, covers)
+ except KeyError:
+ rrset = None
+ return rrset
+
+ def iterate_rdatasets(self, rdtype=None, covers=dns.rdatatype.NONE):
+ """Return a generator which yields (name, rdataset) tuples for
+ all rdatasets in the zone which have the specified I{rdtype}
+ and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default,
+ then all rdatasets will be matched.
+
+ @param rdtype: int or string
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ """
+
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(covers, str):
+ covers = dns.rdatatype.from_text(covers)
+ for (name, node) in self.iteritems():
+ for rds in node:
+ if rdtype == dns.rdatatype.ANY or \
+ (rds.rdtype == rdtype and rds.covers == covers):
+ yield (name, rds)
+
+ def iterate_rdatas(self, rdtype=None, covers=dns.rdatatype.NONE):
+ """Return a generator which yields (name, ttl, rdata) tuples for
+ all rdatas in the zone which have the specified I{rdtype}
+ and I{covers}. If I{rdtype} is dns.rdatatype.ANY, the default,
+ then all rdatas will be matched.
+
+ @param rdtype: int or string
+ @type rdtype: int or string
+ @param covers: the covered type (defaults to None)
+ @type covers: int or string
+ """
+
+ if isinstance(rdtype, str):
+ rdtype = dns.rdatatype.from_text(rdtype)
+ if isinstance(covers, str):
+ covers = dns.rdatatype.from_text(covers)
+ for (name, node) in self.iteritems():
+ for rds in node:
+ if rdtype == dns.rdatatype.ANY or \
+ (rds.rdtype == rdtype and rds.covers == covers):
+ for rdata in rds:
+ yield (name, rds.ttl, rdata)
+
+ def to_file(self, f, sorted=True, relativize=True, nl=None):
+ """Write a zone to a file.
+
+ @param f: file or string. If I{f} is a string, it is treated
+ as the name of a file to open.
+ @param sorted: if True, the file will be written with the
+ names sorted in DNSSEC order from least to greatest. Otherwise
+ the names will be written in whatever order they happen to have
+ in the zone's dictionary.
+ @param relativize: if True, domain names in the output will be
+ relativized to the zone's origin (if possible).
+ @type relativize: bool
+ @param nl: The end of line string. If not specified, the
+ output will use the platform's native end-of-line marker (i.e.
+ LF on POSIX, CRLF on Windows, CR on Macintosh).
+ @type nl: string or None
+ """
+
+ if sys.hexversion >= 0x02030000:
+ # allow Unicode filenames
+ str_type = basestring
+ else:
+ str_type = str
+ if nl is None:
+ opts = 'w'
+ else:
+ opts = 'wb'
+ if isinstance(f, str_type):
+ f = file(f, opts)
+ want_close = True
+ else:
+ want_close = False
+ try:
+ if sorted:
+ names = self.keys()
+ names.sort()
+ else:
+ names = self.iterkeys()
+ for n in names:
+ l = self[n].to_text(n, origin=self.origin,
+ relativize=relativize)
+ if nl is None:
+ print >> f, l
+ else:
+ f.write(l)
+ f.write(nl)
+ finally:
+ if want_close:
+ f.close()
+
+ def check_origin(self):
+ """Do some simple checking of the zone's origin.
+
+ @raises dns.zone.NoSOA: there is no SOA RR
+ @raises dns.zone.NoNS: there is no NS RRset
+ @raises KeyError: there is no origin node
+ """
+ if self.relativize:
+ name = dns.name.empty
+ else:
+ name = self.origin
+ if self.get_rdataset(name, dns.rdatatype.SOA) is None:
+ raise NoSOA
+ if self.get_rdataset(name, dns.rdatatype.NS) is None:
+ raise NoNS
+
+
+class _MasterReader(object):
+ """Read a DNS master file
+
+ @ivar tok: The tokenizer
+ @type tok: dns.tokenizer.Tokenizer object
+ @ivar ttl: The default TTL
+ @type ttl: int
+ @ivar last_name: The last name read
+ @type last_name: dns.name.Name object
+ @ivar current_origin: The current origin
+ @type current_origin: dns.name.Name object
+ @ivar relativize: should names in the zone be relativized?
+ @type relativize: bool
+ @ivar zone: the zone
+ @type zone: dns.zone.Zone object
+ @ivar saved_state: saved reader state (used when processing $INCLUDE)
+ @type saved_state: list of (tokenizer, current_origin, last_name, file)
+ tuples.
+ @ivar current_file: the file object of the $INCLUDed file being parsed
+ (None if no $INCLUDE is active).
+ @ivar allow_include: is $INCLUDE allowed?
+ @type allow_include: bool
+ """
+
+ def __init__(self, tok, origin, rdclass, relativize, zone_factory=Zone,
+ allow_include=False):
+ if isinstance(origin, str):
+ origin = dns.name.from_text(origin)
+ self.tok = tok
+ self.current_origin = origin
+ self.relativize = relativize
+ self.ttl = 0
+ self.last_name = None
+ self.zone = zone_factory(origin, rdclass, relativize=relativize)
+ self.saved_state = []
+ self.current_file = None
+ self.allow_include = allow_include
+
+ def _eat_line(self):
+ while 1:
+ (ttype, t) = self.tok.get()
+ if ttype == dns.tokenizer.EOL or ttype == dns.tokenizer.EOF:
+ break
+
+ def _rr_line(self):
+ """Process one line from a DNS master file."""
+ # Name
+ token = self.tok.get(want_leading = True)
+ if token[0] != dns.tokenizer.WHITESPACE:
+ self.last_name = dns.name.from_text(token[1], self.current_origin)
+ name = self.last_name
+ if not name.is_subdomain(self.zone.origin):
+ self._eat_line()
+ return
+ if self.relativize:
+ name = name.relativize(self.zone.origin)
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ # TTL
+ try:
+ ttl = dns.ttl.from_text(token[1])
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ except dns.ttl.BadTTL:
+ ttl = self.ttl
+ # Class
+ try:
+ rdclass = dns.rdataclass.from_text(token[1])
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError
+ except dns.exception.SyntaxError:
+ raise dns.exception.SyntaxError
+ except:
+ rdclass = self.zone.rdclass
+ if rdclass != self.zone.rdclass:
+ raise dns.exception.SyntaxError, "RR class is not zone's class"
+ # Type
+ try:
+ rdtype = dns.rdatatype.from_text(token[1])
+ except:
+ raise dns.exception.SyntaxError, \
+ "unknown rdatatype '%s'" % token[1]
+ n = self.zone.nodes.get(name)
+ if n is None:
+ n = self.zone.node_factory()
+ self.zone.nodes[name] = n
+ try:
+ rd = dns.rdata.from_text(rdclass, rdtype, self.tok,
+ self.current_origin, False)
+ except dns.exception.SyntaxError:
+ # Catch and reraise.
+ (ty, va) = sys.exc_info()[:2]
+ raise ty, va
+ except:
+ # All exceptions that occur in the processing of rdata
+ # are treated as syntax errors. This is not strictly
+ # correct, but it is correct almost all of the time.
+ # We convert them to syntax errors so that we can emit
+ # helpful filename:line info.
+
+ (ty, va) = sys.exc_info()[:2]
+ raise dns.exception.SyntaxError, \
+ "caught exception %s: %s" % (str(ty), str(va))
+
+ rd.choose_relativity(self.zone.origin, self.relativize)
+ covers = rd.covers()
+ rds = n.find_rdataset(rdclass, rdtype, covers, True)
+ rds.add(rd, ttl)
+
+ def read(self):
+ """Read a DNS master file and build a zone object.
+
+ @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
+ @raises dns.zone.NoNS: No NS RRset was found at the zone origin
+ """
+
+ try:
+ while 1:
+ token = self.tok.get(True, True)
+ if token[0] == dns.tokenizer.EOF:
+ if not self.current_file is None:
+ self.current_file.close()
+ if len(self.saved_state) > 0:
+ (self.tok,
+ self.current_origin,
+ self.last_name,
+ self.current_file,
+ self.ttl) = self.saved_state.pop(-1)
+ continue
+ break
+ elif token[0] == dns.tokenizer.EOL:
+ continue
+ elif token[0] == dns.tokenizer.COMMENT:
+ self.tok.get_eol()
+ continue
+ elif token[1][0] == '$':
+ u = token[1].upper()
+ if u == '$TTL':
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.IDENTIFIER:
+ raise dns.exception.SyntaxError, "bad $TTL"
+ self.ttl = dns.ttl.from_text(token[1])
+ self.tok.get_eol()
+ elif u == '$ORIGIN':
+ self.current_origin = self.tok.get_name()
+ self.tok.get_eol()
+ elif u == '$INCLUDE' and self.allow_include:
+ token = self.tok.get()
+ if token[0] != dns.tokenizer.QUOTED_STRING:
+ raise dns.exception.SyntaxError, \
+ "bad filename in $INCLUDE"
+ filename = token[1]
+ token = self.tok.get()
+ if token[0] == dns.tokenizer.IDENTIFIER:
+ new_origin = dns.name.from_text(token[1], \
+ self.current_origin)
+ self.tok.get_eol()
+ elif token[0] != dns.tokenizer.EOL and \
+ token[0] != dns.tokenizer.EOF:
+ raise dns.exception.SyntaxError, \
+ "bad origin in $INCLUDE"
+ else:
+ new_origin = self.current_origin
+ self.saved_state.append((self.tok,
+ self.current_origin,
+ self.last_name,
+ self.current_file,
+ self.ttl))
+ self.current_file = file(filename, 'r')
+ self.tok = dns.tokenizer.Tokenizer(self.current_file,
+ filename)
+ self.current_origin = new_origin
+ else:
+ raise dns.exception.SyntaxError, \
+ "Unknown master file directive '" + u + "'"
+ continue
+ self.tok.unget(token)
+ self._rr_line()
+ except dns.exception.SyntaxError, detail:
+ (filename, line_number) = self.tok.where()
+ if detail is None:
+ detail = "syntax error"
+ raise dns.exception.SyntaxError, \
+ "%s:%d: %s" % (filename, line_number, detail)
+
+ # Now that we're done reading, do some basic checking of the zone.
+ self.zone.check_origin()
+
+def from_text(text, origin, rdclass = dns.rdataclass.IN, relativize = True,
+ zone_factory=Zone, filename=None, allow_include=False):
+ """Build a zone object from a master file format string.
+
+ @param text: the master file format input
+ @type text: string.
+ @param origin: The origin of the zone.
+ @type origin: dns.name.Name object or string
+ @param rdclass: The zone's rdata class; the default is class IN.
+ @type rdclass: int
+ @param relativize: should names be relativized? The default is True
+ @type relativize: bool
+ @param zone_factory: The zone factory to use
+ @type zone_factory: function returning a Zone
+ @param filename: The filename to emit when describing where an error
+ occurred; the default is '<string>'.
+ @param allow_include: is $INCLUDE allowed?
+ @type allow_include: bool
+ @type filename: string
+ @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
+ @raises dns.zone.NoNS: No NS RRset was found at the zone origin
+ @rtype: dns.zone.Zone object
+ """
+
+ # 'text' can also be a file, but we don't publish that fact
+ # since it's an implementation detail. The official file
+ # interface is from_file().
+
+ if filename is None:
+ filename = '<string>'
+ tok = dns.tokenizer.Tokenizer(text, filename)
+ reader = _MasterReader(tok, origin, rdclass, relativize, zone_factory,
+ allow_include=allow_include)
+ reader.read()
+ return reader.zone
+
+def from_file(f, origin, rdclass = dns.rdataclass.IN, relativize = True,
+ zone_factory=Zone, filename=None, allow_include=True):
+ """Read a master file and build a zone object.
+
+ @param f: file or string. If I{f} is a string, it is treated
+ as the name of a file to open.
+ @param origin: The origin of the zone.
+ @type origin: dns.name.Name object or string
+ @param rdclass: The zone's rdata class; the default is class IN.
+ @type rdclass: int
+ @param relativize: should names be relativized? The default is True
+ @type relativize: bool
+ @param zone_factory: The zone factory to use
+ @type zone_factory: function returning a Zone
+ @param filename: The filename to emit when describing where an error
+ occurred; the default is '<file>', or the value of I{f} if I{f} is a
+ string.
+ @type filename: string
+ @param allow_include: is $INCLUDE allowed?
+ @type allow_include: bool
+ @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
+ @raises dns.zone.NoNS: No NS RRset was found at the zone origin
+ @rtype: dns.zone.Zone object
+ """
+
+ if sys.hexversion >= 0x02030000:
+ # allow Unicode filenames; turn on universal newline support
+ str_type = basestring
+ opts = 'rU'
+ else:
+ str_type = str
+ opts = 'r'
+ if isinstance(f, str_type):
+ if filename is None:
+ filename = f
+ f = file(f, opts)
+ want_close = True
+ else:
+ if filename is None:
+ filename = '<file>'
+ want_close = False
+
+ try:
+ z = from_text(f, origin, rdclass, relativize, zone_factory,
+ filename, allow_include)
+ finally:
+ if want_close:
+ f.close()
+ return z
+
+def from_xfr(xfr, zone_factory=Zone, relativize=True):
+ """Convert the output of a zone transfer generator into a zone object.
+
+ @param xfr: The xfr generator
+ @type xfr: generator of dns.message.Message objects
+ @param relativize: should names be relativized? The default is True
+ @type relativize: bool
+ @raises dns.zone.NoSOA: No SOA RR was found at the zone origin
+ @raises dns.zone.NoNS: No NS RRset was found at the zone origin
+ @rtype: dns.zone.Zone object
+ """
+
+ z = None
+ for r in xfr:
+ if z is None:
+ origin = r.answer[0].name
+ rdclass = r.answer[0].rdclass
+ z = zone_factory(origin, rdclass, relativize=relativize)
+ for rrset in r.answer:
+ znode = z.nodes.get(rrset.name)
+ if not znode:
+ znode = z.node_factory()
+ z.nodes[rrset.name] = znode
+ zrds = znode.find_rdataset(rrset.rdclass, rrset.rdtype,
+ rrset.covers, True)
+ zrds.update_ttl(rrset.ttl)
+ for rd in rrset:
+ rd.choose_relativity(z.origin, relativize)
+ zrds.add(rd)
+ z.check_origin()
+ return z
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.7
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:59 2004 4771.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:59 2004 4771.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:59 2004 4771.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:59 2004 4771.3
--- /dev/null
+#!/usr/bin/env python
+
+import dns.resolver
+
+answers = dns.resolver.query('nominum.com', 'MX')
+for rdata in answers:
+ print 'Host', rdata.exchange, 'has preference', rdata.preference
--- /dev/null
+#!/usr/bin/env python
+
+import dns.name
+
+n = dns.name.from_text('www.dnspython.org')
+o = dns.name.from_text('dnspython.org')
+print n.is_subdomain(o) # True
+print n.is_superdomain(o) # False
+print n > o # True
+rel = n.relativize(o) # rel is the relative name www
+n2 = rel + o
+print n2 == n # True
+print n.labels # ['www', 'dnspython', 'org', '']
--- /dev/null
+#!/usr/bin/env python
+
+# Usage: reverse.py <zone_filename>...
+#
+# This demo script will load in all of the zones specified by the
+# filenames on the command line, find all the A RRs in them, and
+# construct a reverse mapping table that maps each IP address used to
+# the list of names mapping to that address. The table is then sorted
+# nicely and printed.
+#
+# Note! The zone name is taken from the basename of the filename, so
+# you must use filenames like "/wherever/you/like/dnspython.org" and
+# not something like "/wherever/you/like/foo.db" (unless you're
+# working with the ".db" GTLD, of course :)).
+#
+# If this weren't a demo script, there'd be a way of specifying the
+# origin for each zone instead of constructing it from the filename.
+
+import dns.zone
+import dns.ipv4
+import os.path
+import sys
+
+reverse_map = {}
+
+for filename in sys.argv[1:]:
+ zone = dns.zone.from_file(filename, os.path.basename(filename),
+ relativize=False)
+ for (name, ttl, rdata) in zone.iterate_rdatas('A'):
+ l = reverse_map.get(rdata.address)
+ if l is None:
+ l = []
+ reverse_map[rdata.address] = l
+ l.append(name)
+
+keys = reverse_map.keys()
+keys.sort(lambda a1, a2: cmp(dns.ipv4.inet_aton(a1), dns.ipv4.inet_aton(a2)))
+for k in keys:
+ v = reverse_map[k]
+ v.sort()
+ l = map(str, v) # convert names to strings for prettier output
+ print k, l
--- /dev/null
+#!/usr/bin/env python
+
+import dns.query
+import dns.zone
+
+z = dns.zone.from_xfr(dns.query.xfr('204.152.189.147', 'dnspython.org'))
+names = z.nodes.keys()
+names.sort()
+for n in names:
+ print z[n].to_text(n)
--- /dev/null
+#!/usr/bin/env python
+#
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: setup.py,v 1.26 2004/03/19 00:17:27 halley Exp $
+
+from distutils.core import setup
+
+setup(
+ name = "dnspython",
+ version = "1.3.0",
+ description = "DNS toolkit",
+ long_description = \
+ """dnspython is a DNS toolkit for Python. It supports almost all
+record types. It can be used for queries, zone transfers, and dynamic
+updates. It supports TSIG authenticated messages and EDNS0.
+
+dnspython provides both high and low level access to DNS. The high
+level classes perform queries for data of a given name, type, and
+class, and return an answer set. The low level classes allow
+direct manipulation of DNS zones, messages, names, and records.""",
+
+ author = "Bob Halley",
+ author_email = "halley@dnspython.org",
+ license = "BSD-like",
+ url = "http://www.dnspython.org",
+ packages = ['dns', 'dns.rdtypes', 'dns.rdtypes.IN', 'dns.rdtypes.ANY']
+ )
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.9
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:47 2004 4768.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:47 2004 4768.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:47 2004 4768.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:47 2004 4768.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.0
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.2
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.3
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.4
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.5
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.6
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.7
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.8
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.9
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.10
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:35 2004 4766.11
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: Makefile,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+PYTHON=python
+
+check: test
+
+test:
+ @for i in *.py; do \
+ echo "Running $$i:"; \
+ ${PYTHON} $$i || exit 1; \
+ done
--- /dev/null
+; Copyright (C) 2000, 2001 Internet Software Consortium.
+;
+; Permission to use, copy, modify, and distribute this software for any
+; purpose with or without fee is hereby granted, provided that the above
+; copyright notice and this permission notice appear in all copies.
+;
+; THE SOFTWARE IS PROVIDED "AS IS" AND INTERNET SOFTWARE CONSORTIUM
+; DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL
+; IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL
+; INTERNET SOFTWARE CONSORTIUM BE LIABLE FOR ANY SPECIAL, DIRECT,
+; INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
+; FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+; NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
+; WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+; $Id: example,v 1.13 2004/03/19 00:06:37 halley Exp $
+
+$ORIGIN .
+$TTL 300 ; 5 minutes
+example IN SOA ns1.example. hostmaster.example. (
+ 1 ; serial
+ 2000 ; refresh (2000 seconds)
+ 2000 ; retry (2000 seconds)
+ 1814400 ; expire (3 weeks)
+ 3600 ; minimum (1 hour)
+ )
+example. NS ns1.example.
+ns1.example. A 10.53.0.1
+example. NS ns2.example.
+ns2.example. A 10.53.0.2
+
+$ORIGIN example.
+* MX 10 mail
+a TXT "foo foo foo"
+ PTR foo.net.
+$TTL 3600 ; 1 hour
+a01 A 0.0.0.0
+a02 A 255.255.255.255
+;;
+;; XXXRTH dnspython doesn't currently implement A6, and since
+;; A6 records are effectively dead, it may never do so.
+;;
+;;a601 A6 0 ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
+;; A6 64 ::ffff:ffff:ffff:ffff foo.
+;; A6 127 ::1 foo.
+;; A6 128 .
+aaaa01 AAAA ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
+aaaa02 AAAA ::1
+afsdb01 AFSDB 0 hostname
+afsdb02 AFSDB 65535 .
+$TTL 300 ; 5 minutes
+b CNAME foo.net.
+c A 73.80.65.49
+$TTL 3600 ; 1 hour
+cert01 CERT 65534 65535 PRIVATEOID (
+ MxFcby9k/yvedMfQgKzhH5er0Mu/vILz45IkskceFGgi
+ WCn/GxHhai6VAuHAoNUz4YoU1tVfSCSqQYn6//11U6Nl
+ d80jEeC8aTrO+KKmCaY= )
+cname01 CNAME cname-target.
+cname02 CNAME cname-target
+cname03 CNAME .
+$TTL 300 ; 5 minutes
+d A 73.80.65.49
+$TTL 3600 ; 1 hour
+dname01 DNAME dname-target.
+dname02 DNAME dname-target
+dname03 DNAME .
+$TTL 300 ; 5 minutes
+e MX 10 mail
+ TXT "one"
+ TXT "three"
+ TXT "two"
+ A 73.80.65.49
+ A 73.80.65.50
+ A 73.80.65.52
+ A 73.80.65.51
+f A 73.80.65.52
+$TTL 3600 ; 1 hour
+gpos01 GPOS "-22.6882" "116.8652" "250.0"
+;;
+;; XXXRTH I have commented out the following line because I don't think
+;; it is a valid GPOS record.
+;;
+;;gpos02 GPOS "" "" ""
+hinfo01 HINFO "Generic PC clone" "NetBSD-1.4"
+hinfo02 HINFO "PC" "NetBSD"
+isdn01 ISDN "isdn-address"
+isdn02 ISDN "isdn-address" "subaddress"
+isdn03 ISDN "isdn-address"
+isdn04 ISDN "isdn-address" "subaddress"
+key01 KEY 512 255 1 (
+ AQMFD5raczCJHViKtLYhWGz8hMY9UGRuniJDBzC7w0aR
+ yzWZriO6i2odGWWQVucZqKVsENW91IOW4vqudngPZsY3
+ GvQ/xVA8/7pyFj6b7Esga60zyGW6LFe9r8n6paHrlG5o
+ jqf0BaqHT+8= )
+key02 KEY HOST|FLAG4 DNSSEC RSAMD5 (
+ AQMFD5raczCJHViKtLYhWGz8hMY9UGRuniJDBzC7w0aR
+ yzWZriO6i2odGWWQVucZqKVsENW91IOW4vqudngPZsY3
+ GvQ/xVA8/7pyFj6b7Esga60zyGW6LFe9r8n6paHrlG5o
+ jqf0BaqHT+8= )
+kx01 KX 10 kdc
+kx02 KX 10 .
+loc01 LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20m 2000m 20m
+loc02 LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20m 2000m 20m
+loc03 LOC 60 9 0.000 N 24 39 0.000 E 10.00m 90000000.00m 2000m 20m
+;;
+;; XXXRTH These are all obsolete and unused. dnspython doesn't implement
+;; them
+;;mb01 MG madname
+;;mb02 MG .
+;;mg01 MG mgmname
+;;mg02 MG .
+;;minfo01 MINFO rmailbx emailbx
+;;minfo02 MINFO . .
+;;mr01 MR mrname
+;;mr02 MR .
+mx01 MX 10 mail
+mx02 MX 10 .
+naptr01 NAPTR 0 0 "" "" "" .
+naptr02 NAPTR 65535 65535 "blurgh" "blorf" "blegh" foo.
+nsap-ptr01 NSAP-PTR foo.
+ NSAP-PTR .
+nsap01 NSAP 0x47000580005a0000000001e133ffffff00016100
+nsap02 NSAP 0x47.000580005a0000000001e133ffffff000161.00
+nxt01 NXT a.secure ( NS SOA MX SIG KEY LOC NXT )
+nxt02 NXT . ( NSAP-PTR NXT )
+nxt03 NXT . ( A )
+nxt04 NXT . ( 127 )
+ptr01 PTR example.
+px01 PX 65535 foo. bar.
+px02 PX 65535 . .
+rp01 RP mbox-dname txt-dname
+rp02 RP . .
+rt01 RT 0 intermediate-host
+rt02 RT 65535 .
+$TTL 300 ; 5 minutes
+s NS ns.s
+$ORIGIN s.example.
+ns A 73.80.65.49
+$ORIGIN example.
+$TTL 3600 ; 1 hour
+sig01 SIG NXT 1 3 3600 (
+ 20200101000000 20030101000000 2143 foo
+ MxFcby9k/yvedMfQgKzhH5er0Mu/vILz45IkskceFGgi
+ WCn/GxHhai6VAuHAoNUz4YoU1tVfSCSqQYn6//11U6Nl
+ d80jEeC8aTrO+KKmCaY= )
+srv01 SRV 0 0 0 .
+srv02 SRV 65535 65535 65535 old-slow-box.example.com.
+$TTL 301 ; 5 minutes 1 second
+t A 73.80.65.49
+$TTL 3600 ; 1 hour
+txt01 TXT "foo"
+txt02 TXT "foo" "bar"
+txt03 TXT "foo"
+txt04 TXT "foo" "bar"
+txt05 TXT "foo bar"
+txt06 TXT "foo bar"
+txt07 TXT "foo bar"
+txt08 TXT "foo\010bar"
+txt09 TXT "foo\010bar"
+txt10 TXT "foo bar"
+txt11 TXT "\"foo\""
+txt12 TXT "\"foo\""
+$TTL 300 ; 5 minutes
+u TXT "txt-not-in-nxt"
+$ORIGIN u.example.
+a A 73.80.65.49
+b A 73.80.65.49
+$ORIGIN example.
+$TTL 3600 ; 1 hour
+wks01 WKS 10.0.0.1 6 ( 0 1 2 21 23 )
+wks02 WKS 10.0.0.1 17 ( 0 1 2 53 )
+wks03 WKS 10.0.0.2 6 ( 65535 )
+x2501 X25 "123456789"
+ds01 DS 12345 3 1 123456789abcdef67890123456789abcdef67890
+apl01 APL 1:192.168.32.0/21 !1:192.168.38.0/28
+apl02 APL 1:224.0.0.0/4 2:FF00:0:0:0:0:0:0:0/8
+unknown2 TYPE999 \# 8 0a0000010a000001
+rrsig01 RRSIG NSEC 1 3 3600 20200101000000 20030101000000 2143 foo MxFcby9k/yvedMfQgKzhH5er0Mu/ vILz45IkskceFGgiWCn/GxHhai6V AuHAoNUz4YoU1tVfSCSqQYn6//11 U6Nld80jEeC8aTrO+KKmCaY=
+nsec01 NSEC a.secure. A MX RRSIG NSEC TYPE1234
+nsec02 NSEC . NSAP-PTR NSEC
+nsec03 NSEC . NSEC TYPE65535
+dnskey01 DNSKEY 512 255 1 (
+ AQMFD5raczCJHViKtLYhWGz8hMY9UGRuniJDBzC7w0aR
+ yzWZriO6i2odGWWQVucZqKVsENW91IOW4vqudngPZsY3
+ GvQ/xVA8/7pyFj6b7Esga60zyGW6LFe9r8n6paHrlG5o
+ jqf0BaqHT+8= )
+dnskey02 DNSKEY HOST|FLAG4 DNSSEC RSAMD5 (
+ AQMFD5raczCJHViKtLYhWGz8hMY9UGRuniJDBzC7w0aR
+ yzWZriO6i2odGWWQVucZqKVsENW91IOW4vqudngPZsY3
+ GvQ/xVA8/7pyFj6b7Esga60zyGW6LFe9r8n6paHrlG5o
+ jqf0BaqHT+8= )
--- /dev/null
+@ 300 IN SOA ns1 hostmaster 1 2000 2000 1814400 3600
+@ 300 IN NS ns1
+@ 300 IN NS ns2
+* 300 IN MX 10 mail
+a 300 IN TXT "foo foo foo"
+a 300 IN PTR foo.net.
+a01 3600 IN A 0.0.0.0
+a02 3600 IN A 255.255.255.255
+aaaa01 3600 IN AAAA ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
+aaaa02 3600 IN AAAA ::1
+afsdb01 3600 IN AFSDB 0 hostname
+afsdb02 3600 IN AFSDB 65535 .
+apl01 3600 IN APL 1:192.168.32.0/21 !1:192.168.38.0/28
+apl02 3600 IN APL 1:224.0.0.0/4 2:FF00:0:0:0:0:0:0:0/8
+b 300 IN CNAME foo.net.
+c 300 IN A 73.80.65.49
+cert01 3600 IN CERT 65534 65535 PRIVATEOID MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+cname01 3600 IN CNAME cname-target.
+cname02 3600 IN CNAME cname-target
+cname03 3600 IN CNAME .
+d 300 IN A 73.80.65.49
+dname01 3600 IN DNAME dname-target.
+dname02 3600 IN DNAME dname-target
+dname03 3600 IN DNAME .
+dnskey01 3600 IN DNSKEY 512 255 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+dnskey02 3600 IN DNSKEY 2560 3 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+ds01 3600 IN DS 12345 3 1 123456789abcdef67890123456789abcdef67890
+e 300 IN MX 10 mail
+e 300 IN TXT "one"
+e 300 IN TXT "three"
+e 300 IN TXT "two"
+e 300 IN A 73.80.65.49
+e 300 IN A 73.80.65.50
+e 300 IN A 73.80.65.52
+e 300 IN A 73.80.65.51
+f 300 IN A 73.80.65.52
+gpos01 3600 IN GPOS -22.6882 116.8652 250.0
+hinfo01 3600 IN HINFO "Generic PC clone" "NetBSD-1.4"
+hinfo02 3600 IN HINFO "PC" "NetBSD"
+isdn01 3600 IN ISDN "isdn-address"
+isdn02 3600 IN ISDN "isdn-address" "subaddress"
+isdn03 3600 IN ISDN "isdn-address"
+isdn04 3600 IN ISDN "isdn-address" "subaddress"
+key01 3600 IN KEY 512 255 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+key02 3600 IN KEY 2560 3 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+kx01 3600 IN KX 10 kdc
+kx02 3600 IN KX 10 .
+loc01 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20.00m 2000.00m 20.00m
+loc02 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20.00m 2000.00m 20.00m
+loc03 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 90000000.00m 2000.00m 20.00m
+mx01 3600 IN MX 10 mail
+mx02 3600 IN MX 10 .
+naptr01 3600 IN NAPTR 0 0 "" "" "" .
+naptr02 3600 IN NAPTR 65535 65535 "blurgh" "blorf" "blegh" foo.
+ns1 300 IN A 10.53.0.1
+ns2 300 IN A 10.53.0.2
+nsap-ptr01 3600 IN NSAP-PTR foo.
+nsap-ptr01 3600 IN NSAP-PTR .
+nsap01 3600 IN NSAP 0x47000580005a0000000001e133ffffff00016100
+nsap02 3600 IN NSAP 0x47000580005a0000000001e133ffffff00016100
+nsec01 3600 IN NSEC a.secure. TYPE1234
+nsec02 3600 IN NSEC . NSAP-PTR NSEC
+nsec03 3600 IN NSEC . TYPE65535
+nxt01 3600 IN NXT a.secure NS SOA MX SIG KEY LOC NXT
+nxt02 3600 IN NXT . NSAP-PTR NXT
+nxt03 3600 IN NXT . A
+nxt04 3600 IN NXT . TYPE127
+ptr01 3600 IN PTR @
+px01 3600 IN PX 65535 foo. bar.
+px02 3600 IN PX 65535 . .
+rp01 3600 IN RP mbox-dname txt-dname
+rp02 3600 IN RP . .
+rrsig01 3600 IN RRSIG NSEC 1 3 3600 20200101000000 20030101000000 2143 foo MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+rt01 3600 IN RT 0 intermediate-host
+rt02 3600 IN RT 65535 .
+s 300 IN NS ns.s
+ns.s 300 IN A 73.80.65.49
+sig01 3600 IN SIG NXT 1 3 3600 20200101000000 20030101000000 2143 foo MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+srv01 3600 IN SRV 0 0 0 .
+srv02 3600 IN SRV 65535 65535 65535 old-slow-box.example.com.
+t 301 IN A 73.80.65.49
+txt01 3600 IN TXT "foo"
+txt02 3600 IN TXT "foo" "bar"
+txt03 3600 IN TXT "foo"
+txt04 3600 IN TXT "foo" "bar"
+txt05 3600 IN TXT "foo bar"
+txt06 3600 IN TXT "foo bar"
+txt07 3600 IN TXT "foo bar"
+txt08 3600 IN TXT "foo\010bar"
+txt09 3600 IN TXT "foo\010bar"
+txt10 3600 IN TXT "foo bar"
+txt11 3600 IN TXT "\"foo\""
+txt12 3600 IN TXT "\"foo\""
+u 300 IN TXT "txt-not-in-nxt"
+a.u 300 IN A 73.80.65.49
+b.u 300 IN A 73.80.65.49
+unknown2 3600 IN TYPE999 \# 8 0a0000010a000001
+wks01 3600 IN WKS 10.0.0.1 6 0 1 2 21 23
+wks02 3600 IN WKS 10.0.0.1 17 0 1 2 53
+wks03 3600 IN WKS 10.0.0.2 6 65535
+x2501 3600 IN X25 "123456789"
--- /dev/null
+example. 300 IN SOA ns1.example. hostmaster.example. 1 2000 2000 1814400 3600
+example. 300 IN NS ns1.example.
+example. 300 IN NS ns2.example.
+*.example. 300 IN MX 10 mail.example.
+a.example. 300 IN TXT "foo foo foo"
+a.example. 300 IN PTR foo.net.
+a01.example. 3600 IN A 0.0.0.0
+a02.example. 3600 IN A 255.255.255.255
+aaaa01.example. 3600 IN AAAA ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff
+aaaa02.example. 3600 IN AAAA ::1
+afsdb01.example. 3600 IN AFSDB 0 hostname.example.
+afsdb02.example. 3600 IN AFSDB 65535 .
+apl01.example. 3600 IN APL 1:192.168.32.0/21 !1:192.168.38.0/28
+apl02.example. 3600 IN APL 1:224.0.0.0/4 2:FF00:0:0:0:0:0:0:0/8
+b.example. 300 IN CNAME foo.net.
+c.example. 300 IN A 73.80.65.49
+cert01.example. 3600 IN CERT 65534 65535 PRIVATEOID MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+cname01.example. 3600 IN CNAME cname-target.
+cname02.example. 3600 IN CNAME cname-target.example.
+cname03.example. 3600 IN CNAME .
+d.example. 300 IN A 73.80.65.49
+dname01.example. 3600 IN DNAME dname-target.
+dname02.example. 3600 IN DNAME dname-target.example.
+dname03.example. 3600 IN DNAME .
+dnskey01.example. 3600 IN DNSKEY 512 255 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+dnskey02.example. 3600 IN DNSKEY 2560 3 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+ds01.example. 3600 IN DS 12345 3 1 123456789abcdef67890123456789abcdef67890
+e.example. 300 IN MX 10 mail.example.
+e.example. 300 IN TXT "one"
+e.example. 300 IN TXT "three"
+e.example. 300 IN TXT "two"
+e.example. 300 IN A 73.80.65.49
+e.example. 300 IN A 73.80.65.50
+e.example. 300 IN A 73.80.65.52
+e.example. 300 IN A 73.80.65.51
+f.example. 300 IN A 73.80.65.52
+gpos01.example. 3600 IN GPOS -22.6882 116.8652 250.0
+hinfo01.example. 3600 IN HINFO "Generic PC clone" "NetBSD-1.4"
+hinfo02.example. 3600 IN HINFO "PC" "NetBSD"
+isdn01.example. 3600 IN ISDN "isdn-address"
+isdn02.example. 3600 IN ISDN "isdn-address" "subaddress"
+isdn03.example. 3600 IN ISDN "isdn-address"
+isdn04.example. 3600 IN ISDN "isdn-address" "subaddress"
+key01.example. 3600 IN KEY 512 255 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+key02.example. 3600 IN KEY 2560 3 1 AQMFD5raczCJHViKtLYhWGz8hMY9UGRu niJDBzC7w0aRyzWZriO6i2odGWWQVucZ qKVsENW91IOW4vqudngPZsY3GvQ/xVA8 /7pyFj6b7Esga60zyGW6LFe9r8n6paHr lG5ojqf0BaqHT+8=
+kx01.example. 3600 IN KX 10 kdc.example.
+kx02.example. 3600 IN KX 10 .
+loc01.example. 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20.00m 2000.00m 20.00m
+loc02.example. 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 20.00m 2000.00m 20.00m
+loc03.example. 3600 IN LOC 60 9 0.000 N 24 39 0.000 E 10.00m 90000000.00m 2000.00m 20.00m
+mx01.example. 3600 IN MX 10 mail.example.
+mx02.example. 3600 IN MX 10 .
+naptr01.example. 3600 IN NAPTR 0 0 "" "" "" .
+naptr02.example. 3600 IN NAPTR 65535 65535 "blurgh" "blorf" "blegh" foo.
+ns1.example. 300 IN A 10.53.0.1
+ns2.example. 300 IN A 10.53.0.2
+nsap-ptr01.example. 3600 IN NSAP-PTR foo.
+nsap-ptr01.example. 3600 IN NSAP-PTR .
+nsap01.example. 3600 IN NSAP 0x47000580005a0000000001e133ffffff00016100
+nsap02.example. 3600 IN NSAP 0x47000580005a0000000001e133ffffff00016100
+nsec01.example. 3600 IN NSEC a.secure. TYPE1234
+nsec02.example. 3600 IN NSEC . NSAP-PTR NSEC
+nsec03.example. 3600 IN NSEC . TYPE65535
+nxt01.example. 3600 IN NXT a.secure.example. NS SOA MX SIG KEY LOC NXT
+nxt02.example. 3600 IN NXT . NSAP-PTR NXT
+nxt03.example. 3600 IN NXT . A
+nxt04.example. 3600 IN NXT . TYPE127
+ptr01.example. 3600 IN PTR example.
+px01.example. 3600 IN PX 65535 foo. bar.
+px02.example. 3600 IN PX 65535 . .
+rp01.example. 3600 IN RP mbox-dname.example. txt-dname.example.
+rp02.example. 3600 IN RP . .
+rrsig01.example. 3600 IN RRSIG NSEC 1 3 3600 20200101000000 20030101000000 2143 foo.example. MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+rt01.example. 3600 IN RT 0 intermediate-host.example.
+rt02.example. 3600 IN RT 65535 .
+s.example. 300 IN NS ns.s.example.
+ns.s.example. 300 IN A 73.80.65.49
+sig01.example. 3600 IN SIG NXT 1 3 3600 20200101000000 20030101000000 2143 foo.example. MxFcby9k/yvedMfQgKzhH5er0Mu/vILz 45IkskceFGgiWCn/GxHhai6VAuHAoNUz 4YoU1tVfSCSqQYn6//11U6Nld80jEeC8 aTrO+KKmCaY=
+srv01.example. 3600 IN SRV 0 0 0 .
+srv02.example. 3600 IN SRV 65535 65535 65535 old-slow-box.example.com.
+t.example. 301 IN A 73.80.65.49
+txt01.example. 3600 IN TXT "foo"
+txt02.example. 3600 IN TXT "foo" "bar"
+txt03.example. 3600 IN TXT "foo"
+txt04.example. 3600 IN TXT "foo" "bar"
+txt05.example. 3600 IN TXT "foo bar"
+txt06.example. 3600 IN TXT "foo bar"
+txt07.example. 3600 IN TXT "foo bar"
+txt08.example. 3600 IN TXT "foo\010bar"
+txt09.example. 3600 IN TXT "foo\010bar"
+txt10.example. 3600 IN TXT "foo bar"
+txt11.example. 3600 IN TXT "\"foo\""
+txt12.example. 3600 IN TXT "\"foo\""
+u.example. 300 IN TXT "txt-not-in-nxt"
+a.u.example. 300 IN A 73.80.65.49
+b.u.example. 300 IN A 73.80.65.49
+unknown2.example. 3600 IN TYPE999 \# 8 0a0000010a000001
+wks01.example. 3600 IN WKS 10.0.0.1 6 0 1 2 21 23
+wks02.example. 3600 IN WKS 10.0.0.1 17 0 1 2 53
+wks03.example. 3600 IN WKS 10.0.0.2 6 65535
+x2501.example. 3600 IN X25 "123456789"
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: flags.py,v 1.2 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.flags
+import dns.rcode
+import dns.opcode
+
+class FlagsTestCase(unittest.TestCase):
+
+ def test_rcode1(self):
+ self.failUnless(dns.rcode.from_text('FORMERR') == dns.rcode.FORMERR)
+
+ def test_rcode2(self):
+ self.failUnless(dns.rcode.to_text(dns.rcode.FORMERR) == "FORMERR")
+
+ def test_rcode3(self):
+ self.failUnless(dns.rcode.to_flags(dns.rcode.FORMERR) == (1, 0))
+
+ def test_rcode4(self):
+ self.failUnless(dns.rcode.to_flags(dns.rcode.BADVERS) == \
+ (0, 0x01000000))
+
+ def test_rcode6(self):
+ self.failUnless(dns.rcode.from_flags(0, 0x01000000) == \
+ dns.rcode.BADVERS)
+
+ def test_rcode6(self):
+ self.failUnless(dns.rcode.from_flags(5, 0) == dns.rcode.REFUSED)
+
+ def test_rcode7(self):
+ def bad():
+ dns.rcode.to_flags(4096)
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_flags1(self):
+ self.failUnless(dns.flags.from_text("RA RD AA QR") == \
+ dns.flags.QR|dns.flags.AA|dns.flags.RD|dns.flags.RA)
+
+ def test_flags2(self):
+ flags = dns.flags.QR|dns.flags.AA|dns.flags.RD|dns.flags.RA
+ self.failUnless(dns.flags.to_text(flags) == "QR AA RD RA")
+
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: message.py,v 1.8 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import os
+import unittest
+
+import dns.exception
+import dns.message
+
+query_text = """id 1234
+opcode QUERY
+rcode NOERROR
+flags RD
+edns 0
+eflags DO
+payload 4096
+;QUESTION
+wwww.dnspython.org. IN A
+;ANSWER
+;AUTHORITY
+;ADDITIONAL"""
+
+goodhex = '04d201000001000000000001047777777709646e73707974686f6e' \
+ '036f726700000100010000291000000080000000'
+
+goodwire = goodhex.decode('hex_codec')
+
+answer_text = """id 1234
+opcode QUERY
+rcode NOERROR
+flags QR AA RD
+;QUESTION
+dnspython.org. IN SOA
+;ANSWER
+dnspython.org. 3600 IN SOA woof.dnspython.org. hostmaster.dnspython.org. 2003052700 3600 1800 604800 3600
+;AUTHORITY
+dnspython.org. 3600 IN NS ns1.staff.nominum.org.
+dnspython.org. 3600 IN NS ns2.staff.nominum.org.
+dnspython.org. 3600 IN NS woof.play-bow.org.
+;ADDITIONAL
+woof.play-bow.org. 3600 IN A 204.152.186.150
+"""
+
+goodhex2 = '04d2 8500 0001 0001 0003 0001' \
+ '09646e73707974686f6e036f726700 0006 0001' \
+ 'c00c 0006 0001 00000e10 0028 ' \
+ '04776f6f66c00c 0a686f73746d6173746572c00c' \
+ '7764289c 00000e10 00000708 00093a80 00000e10' \
+ 'c00c 0002 0001 00000e10 0014' \
+ '036e7331057374616666076e6f6d696e756dc016' \
+ 'c00c 0002 0001 00000e10 0006 036e7332c063' \
+ 'c00c 0002 0001 00000e10 0010 04776f6f6608706c61792d626f77c016' \
+ 'c091 0001 0001 00000e10 0004 cc98ba96'
+
+
+goodwire2 = goodhex2.replace(' ', '').decode('hex_codec')
+
+query_text_2 = """id 1234
+opcode QUERY
+rcode 4095
+flags RD
+edns 0
+eflags DO
+payload 4096
+;QUESTION
+wwww.dnspython.org. IN A
+;ANSWER
+;AUTHORITY
+;ADDITIONAL"""
+
+goodhex3 = '04d2010f0001000000000001047777777709646e73707974686f6e' \
+ '036f726700000100010000291000ff0080000000'
+
+goodwire3 = goodhex3.decode('hex_codec')
+
+class MessageTestCase(unittest.TestCase):
+
+ def test_comparison_eq1(self):
+ q1 = dns.message.from_text(query_text)
+ q2 = dns.message.from_text(query_text)
+ self.failUnless(q1 == q2)
+
+ def test_comparison_ne1(self):
+ q1 = dns.message.from_text(query_text)
+ q2 = dns.message.from_text(query_text)
+ q2.id = 10
+ self.failUnless(q1 != q2)
+
+ def test_comparison_ne2(self):
+ q1 = dns.message.from_text(query_text)
+ q2 = dns.message.from_text(query_text)
+ q2.question = []
+ self.failUnless(q1 != q2)
+
+ def test_comparison_ne3(self):
+ q1 = dns.message.from_text(query_text)
+ self.failUnless(q1 != 1)
+
+ def test_EDNS_to_wire1(self):
+ q = dns.message.from_text(query_text)
+ w = q.to_wire()
+ self.failUnless(w == goodwire)
+
+ def test_EDNS_from_wire1(self):
+ m = dns.message.from_wire(goodwire)
+ self.failUnless(str(m) == query_text)
+
+ def test_EDNS_to_wire2(self):
+ q = dns.message.from_text(query_text_2)
+ w = q.to_wire()
+ self.failUnless(w == goodwire3)
+
+ def test_EDNS_from_wire2(self):
+ m = dns.message.from_wire(goodwire3)
+ self.failUnless(str(m) == query_text_2)
+
+ def test_TooBig(self):
+ def bad():
+ q = dns.message.from_text(query_text)
+ w = q.to_wire(max_size=15)
+ self.failUnlessRaises(dns.exception.TooBig, bad)
+
+ def test_answer1(self):
+ a = dns.message.from_text(answer_text)
+ wire = a.to_wire(want_shuffle=False)
+ self.failUnless(wire == goodwire2)
+
+ def test_TrailingJunk(self):
+ def bad():
+ badwire = goodwire + '\x00'
+ m = dns.message.from_wire(badwire)
+ self.failUnlessRaises(dns.message.TrailingJunk, bad)
+
+ def test_ShortHeader(self):
+ def bad():
+ badwire = '\x00' * 11
+ m = dns.message.from_wire(badwire)
+ self.failUnlessRaises(dns.message.ShortHeader, bad)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: name.py,v 1.13 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import cStringIO
+
+import dns.name
+
+class NameTestCase(unittest.TestCase):
+ def setUp(self):
+ self.origin = dns.name.from_text('example.')
+
+ def testFromTextRel1(self):
+ n = dns.name.from_text('foo.bar')
+ self.failUnless(n.labels == ('foo', 'bar', ''))
+
+ def testFromTextRel2(self):
+ n = dns.name.from_text('foo.bar', origin=self.origin)
+ self.failUnless(n.labels == ('foo', 'bar', 'example', ''))
+
+ def testFromTextRel3(self):
+ n = dns.name.from_text('foo.bar', origin=None)
+ self.failUnless(n.labels == ('foo', 'bar'))
+
+ def testFromTextRel4(self):
+ n = dns.name.from_text('@', origin=None)
+ self.failUnless(n == dns.name.empty)
+
+ def testFromTextRel5(self):
+ n = dns.name.from_text('@', origin=self.origin)
+ self.failUnless(n == self.origin)
+
+ def testFromTextAbs1(self):
+ n = dns.name.from_text('foo.bar.')
+ self.failUnless(n.labels == ('foo', 'bar', ''))
+
+ def testImmutable1(self):
+ def bad():
+ self.origin.labels = ()
+ self.failUnlessRaises(TypeError, bad)
+
+ def testImmutable2(self):
+ def bad():
+ self.origin.labels[0] = 'foo'
+ self.failUnlessRaises(TypeError, bad)
+
+ def testAbs1(self):
+ self.failUnless(dns.name.root.is_absolute())
+
+ def testAbs2(self):
+ self.failUnless(not dns.name.empty.is_absolute())
+
+ def testAbs3(self):
+ self.failUnless(self.origin.is_absolute())
+
+ def testAbs3(self):
+ n = dns.name.from_text('foo', origin=None)
+ self.failUnless(not n.is_absolute())
+
+ def testWild1(self):
+ n = dns.name.from_text('*.foo', origin=None)
+ self.failUnless(n.is_wild())
+
+ def testWild2(self):
+ n = dns.name.from_text('*a.foo', origin=None)
+ self.failUnless(not n.is_wild())
+
+ def testWild3(self):
+ n = dns.name.from_text('a.*.foo', origin=None)
+ self.failUnless(not n.is_wild())
+
+ def testWild4(self):
+ self.failUnless(not dns.name.root.is_wild())
+
+ def testWild5(self):
+ self.failUnless(not dns.name.empty.is_wild())
+
+ def testHash1(self):
+ n1 = dns.name.from_text('fOo.COM')
+ n2 = dns.name.from_text('foo.com')
+ self.failUnless(hash(n1) == hash(n2))
+
+ def testCompare1(self):
+ n1 = dns.name.from_text('a')
+ n2 = dns.name.from_text('b')
+ self.failUnless(n1 < n2)
+ self.failUnless(n2 > n1)
+
+ def testCompare2(self):
+ n1 = dns.name.from_text('')
+ n2 = dns.name.from_text('b')
+ self.failUnless(n1 < n2)
+ self.failUnless(n2 > n1)
+
+ def testCompare3(self):
+ self.failUnless(dns.name.empty < dns.name.root)
+ self.failUnless(dns.name.root > dns.name.empty)
+
+ def testCompare4(self):
+ self.failUnless(dns.name.root != 1)
+
+ def testCompare5(self):
+ self.failUnless(dns.name.root < 1 or dns.name.root > 1)
+
+ def testSubdomain1(self):
+ self.failUnless(not dns.name.empty.is_subdomain(dns.name.root))
+
+ def testSubdomain2(self):
+ self.failUnless(not dns.name.root.is_subdomain(dns.name.empty))
+
+ def testSubdomain3(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(n.is_subdomain(self.origin))
+
+ def testSubdomain4(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(n.is_subdomain(dns.name.root))
+
+ def testSubdomain5(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(n.is_subdomain(n))
+
+ def testSuperdomain1(self):
+ self.failUnless(not dns.name.empty.is_superdomain(dns.name.root))
+
+ def testSuperdomain2(self):
+ self.failUnless(not dns.name.root.is_superdomain(dns.name.empty))
+
+ def testSuperdomain3(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(self.origin.is_superdomain(n))
+
+ def testSuperdomain4(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(dns.name.root.is_superdomain(n))
+
+ def testSuperdomain5(self):
+ n = dns.name.from_text('foo', origin=self.origin)
+ self.failUnless(n.is_superdomain(n))
+
+ def testCanonicalize1(self):
+ n = dns.name.from_text('FOO.bar', origin=self.origin)
+ c = n.canonicalize()
+ self.failUnless(c.labels == ('foo', 'bar', 'example', ''))
+
+ def testToText1(self):
+ n = dns.name.from_text('FOO.bar', origin=self.origin)
+ t = n.to_text()
+ self.failUnless(t == 'FOO.bar.example.')
+
+ def testToText2(self):
+ n = dns.name.from_text('FOO.bar', origin=self.origin)
+ t = n.to_text(True)
+ self.failUnless(t == 'FOO.bar.example')
+
+ def testToText3(self):
+ n = dns.name.from_text('FOO.bar', origin=None)
+ t = n.to_text()
+ self.failUnless(t == 'FOO.bar')
+
+ def testToText4(self):
+ t = dns.name.empty.to_text()
+ self.failUnless(t == '@')
+
+ def testToText5(self):
+ t = dns.name.root.to_text()
+ self.failUnless(t == '.')
+
+ def testToText6(self):
+ n = dns.name.from_text('FOO bar', origin=None)
+ t = n.to_text()
+ self.failUnless(t == r'FOO\032bar')
+
+ def testToText7(self):
+ n = dns.name.from_text(r'FOO\.bar', origin=None)
+ t = n.to_text()
+ self.failUnless(t == r'FOO\.bar')
+
+ def testToText8(self):
+ n = dns.name.from_text(r'\070OO\.bar', origin=None)
+ t = n.to_text()
+ self.failUnless(t == r'FOO\.bar')
+
+ def testSlice1(self):
+ n = dns.name.from_text(r'a.b.c.', origin=None)
+ s = n[:]
+ self.failUnless(s == ('a', 'b', 'c', ''))
+
+ def testSlice2(self):
+ n = dns.name.from_text(r'a.b.c.', origin=None)
+ s = n[:2]
+ self.failUnless(s == ('a', 'b'))
+
+ def testSlice3(self):
+ n = dns.name.from_text(r'a.b.c.', origin=None)
+ s = n[2:]
+ self.failUnless(s == ('c', ''))
+
+ def testEmptyLabel1(self):
+ def bad():
+ n = dns.name.Name(['a', '', 'b'])
+ self.failUnlessRaises(dns.name.EmptyLabel, bad)
+
+ def testEmptyLabel2(self):
+ def bad():
+ n = dns.name.Name(['', 'b'])
+ self.failUnlessRaises(dns.name.EmptyLabel, bad)
+
+ def testEmptyLabel3(self):
+ n = dns.name.Name(['b', ''])
+ self.failUnless(n)
+
+ def testLongLabel(self):
+ n = dns.name.Name(['a' * 63])
+ self.failUnless(n)
+
+ def testLabelTooLong(self):
+ def bad():
+ n = dns.name.Name(['a' * 64, 'b'])
+ self.failUnlessRaises(dns.name.LabelTooLong, bad)
+
+ def testLongName(self):
+ n = dns.name.Name(['a' * 63, 'a' * 63, 'a' * 63, 'a' * 62])
+ self.failUnless(n)
+
+ def testLabelTooLong(self):
+ def bad():
+ n = dns.name.Name(['a' * 63, 'a' * 63, 'a' * 63, 'a' * 63])
+ self.failUnlessRaises(dns.name.NameTooLong, bad)
+
+ def testConcat1(self):
+ n1 = dns.name.Name(['a', 'b'])
+ n2 = dns.name.Name(['c', 'd'])
+ e = dns.name.Name(['a', 'b', 'c', 'd'])
+ r = n1 + n2
+ self.failUnless(r == e)
+
+ def testConcat2(self):
+ n1 = dns.name.Name(['a', 'b'])
+ n2 = dns.name.Name([])
+ e = dns.name.Name(['a', 'b'])
+ r = n1 + n2
+ self.failUnless(r == e)
+
+ def testConcat2(self):
+ n1 = dns.name.Name([])
+ n2 = dns.name.Name(['a', 'b'])
+ e = dns.name.Name(['a', 'b'])
+ r = n1 + n2
+ self.failUnless(r == e)
+
+ def testConcat3(self):
+ n1 = dns.name.Name(['a', 'b', ''])
+ n2 = dns.name.Name([])
+ e = dns.name.Name(['a', 'b', ''])
+ r = n1 + n2
+ self.failUnless(r == e)
+
+ def testConcat4(self):
+ n1 = dns.name.Name(['a', 'b'])
+ n2 = dns.name.Name(['c', ''])
+ e = dns.name.Name(['a', 'b', 'c', ''])
+ r = n1 + n2
+ self.failUnless(r == e)
+
+ def testConcat5(self):
+ def bad():
+ n1 = dns.name.Name(['a', 'b', ''])
+ n2 = dns.name.Name(['c'])
+ r = n1 + n2
+ self.failUnlessRaises(dns.name.AbsoluteConcatenation, bad)
+
+ def testBadEscape(self):
+ def bad():
+ n = dns.name.from_text(r'a.b\0q1.c.')
+ print n
+ self.failUnlessRaises(dns.name.BadEscape, bad)
+
+ def testDigestable1(self):
+ n = dns.name.from_text('FOO.bar')
+ d = n.to_digestable()
+ self.failUnless(d == '\x03foo\x03bar\x00')
+
+ def testDigestable2(self):
+ n1 = dns.name.from_text('FOO.bar')
+ n2 = dns.name.from_text('foo.BAR.')
+ d1 = n1.to_digestable()
+ d2 = n2.to_digestable()
+ self.failUnless(d1 == d2)
+
+ def testDigestable3(self):
+ d = dns.name.root.to_digestable()
+ self.failUnless(d == '\x00')
+
+ def testDigestable4(self):
+ n = dns.name.from_text('FOO.bar', None)
+ d = n.to_digestable(dns.name.root)
+ self.failUnless(d == '\x03foo\x03bar\x00')
+
+ def testBadDigestable(self):
+ def bad():
+ n = dns.name.from_text('FOO.bar', None)
+ d = n.to_digestable()
+ self.failUnlessRaises(dns.name.NeedAbsoluteNameOrOrigin, bad)
+
+ def testToWire1(self):
+ n = dns.name.from_text('FOO.bar')
+ f = cStringIO.StringIO()
+ compress = {}
+ n.to_wire(f, compress)
+ self.failUnless(f.getvalue() == '\x03FOO\x03bar\x00')
+
+ def testToWire2(self):
+ n = dns.name.from_text('FOO.bar')
+ f = cStringIO.StringIO()
+ compress = {}
+ n.to_wire(f, compress)
+ n.to_wire(f, compress)
+ self.failUnless(f.getvalue() == '\x03FOO\x03bar\x00\xc0\x00')
+
+ def testToWire3(self):
+ n1 = dns.name.from_text('FOO.bar')
+ n2 = dns.name.from_text('foo.bar')
+ f = cStringIO.StringIO()
+ compress = {}
+ n1.to_wire(f, compress)
+ n2.to_wire(f, compress)
+ self.failUnless(f.getvalue() == '\x03FOO\x03bar\x00\xc0\x00')
+
+ def testToWire4(self):
+ n1 = dns.name.from_text('FOO.bar')
+ n2 = dns.name.from_text('a.foo.bar')
+ f = cStringIO.StringIO()
+ compress = {}
+ n1.to_wire(f, compress)
+ n2.to_wire(f, compress)
+ self.failUnless(f.getvalue() == '\x03FOO\x03bar\x00\x01\x61\xc0\x00')
+
+ def testToWire5(self):
+ n1 = dns.name.from_text('FOO.bar')
+ n2 = dns.name.from_text('a.foo.bar')
+ f = cStringIO.StringIO()
+ compress = {}
+ n1.to_wire(f, compress)
+ n2.to_wire(f, None)
+ self.failUnless(f.getvalue() == \
+ '\x03FOO\x03bar\x00\x01\x61\x03foo\x03bar\x00')
+
+ def testBadToWire(self):
+ def bad():
+ n = dns.name.from_text('FOO.bar', None)
+ f = cStringIO.StringIO()
+ compress = {}
+ n.to_wire(f, compress)
+ self.failUnlessRaises(dns.name.NeedAbsoluteNameOrOrigin, bad)
+
+ def testSplit1(self):
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(2)
+ ep = dns.name.from_text('foo', None)
+ es = dns.name.from_text('bar.', None)
+ self.failUnless(prefix == ep and suffix == es)
+
+ def testSplit2(self):
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(1)
+ ep = dns.name.from_text('foo.bar', None)
+ es = dns.name.from_text('.', None)
+ self.failUnless(prefix == ep and suffix == es)
+
+ def testSplit3(self):
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(0)
+ ep = dns.name.from_text('foo.bar.', None)
+ es = dns.name.from_text('', None)
+ self.failUnless(prefix == ep and suffix == es)
+
+ def testSplit4(self):
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(3)
+ ep = dns.name.from_text('', None)
+ es = dns.name.from_text('foo.bar.', None)
+ self.failUnless(prefix == ep and suffix == es)
+
+ def testBadSplit1(self):
+ def bad():
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(-1)
+ self.failUnlessRaises(ValueError, bad)
+
+ def testBadSplit2(self):
+ def bad():
+ n = dns.name.from_text('foo.bar.')
+ (prefix, suffix) = n.split(4)
+ self.failUnlessRaises(ValueError, bad)
+
+ def testRelativize1(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = dns.name.from_text('bar.', None)
+ e = dns.name.from_text('a.foo', None)
+ self.failUnless(n.relativize(o) == e)
+
+ def testRelativize2(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = n
+ e = dns.name.empty
+ self.failUnless(n.relativize(o) == e)
+
+ def testRelativize3(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = dns.name.from_text('blaz.', None)
+ e = n
+ self.failUnless(n.relativize(o) == e)
+
+ def testRelativize4(self):
+ n = dns.name.from_text('a.foo', None)
+ o = dns.name.root
+ e = n
+ self.failUnless(n.relativize(o) == e)
+
+ def testDerelativize1(self):
+ n = dns.name.from_text('a.foo', None)
+ o = dns.name.from_text('bar.', None)
+ e = dns.name.from_text('a.foo.bar.', None)
+ self.failUnless(n.derelativize(o) == e)
+
+ def testDerelativize2(self):
+ n = dns.name.empty
+ o = dns.name.from_text('a.foo.bar.', None)
+ e = o
+ self.failUnless(n.derelativize(o) == e)
+
+ def testDerelativize3(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = dns.name.from_text('blaz.', None)
+ e = n
+ self.failUnless(n.derelativize(o) == e)
+
+ def testChooseRelativity1(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = dns.name.from_text('bar.', None)
+ e = dns.name.from_text('a.foo', None)
+ self.failUnless(n.choose_relativity(o, True) == e)
+
+ def testChooseRelativity2(self):
+ n = dns.name.from_text('a.foo.bar.', None)
+ o = dns.name.from_text('bar.', None)
+ e = n
+ self.failUnless(n.choose_relativity(o, False) == e)
+
+ def testChooseRelativity3(self):
+ n = dns.name.from_text('a.foo', None)
+ o = dns.name.from_text('bar.', None)
+ e = dns.name.from_text('a.foo.bar.', None)
+ self.failUnless(n.choose_relativity(o, False) == e)
+
+ def testChooseRelativity4(self):
+ n = dns.name.from_text('a.foo', None)
+ o = None
+ e = n
+ self.failUnless(n.choose_relativity(o, True) == e)
+
+ def testChooseRelativity5(self):
+ n = dns.name.from_text('a.foo', None)
+ o = None
+ e = n
+ self.failUnless(n.choose_relativity(o, False) == e)
+
+ def testChooseRelativity6(self):
+ n = dns.name.from_text('a.foo.', None)
+ o = None
+ e = n
+ self.failUnless(n.choose_relativity(o, True) == e)
+
+ def testChooseRelativity7(self):
+ n = dns.name.from_text('a.foo.', None)
+ o = None
+ e = n
+ self.failUnless(n.choose_relativity(o, False) == e)
+
+ def testFromWire1(self):
+ w = '\x03foo\x00\xc0\x00'
+ (n1, cused1) = dns.name.from_wire(w, 0)
+ (n2, cused2) = dns.name.from_wire(w, cused1)
+ en1 = dns.name.from_text('foo.')
+ en2 = en1
+ ecused1 = 5
+ ecused2 = 2
+ self.failUnless(n1 == en1 and cused1 == ecused1 and \
+ n2 == en2 and cused2 == ecused2)
+
+ def testFromWire1(self):
+ w = '\x03foo\x00\x01a\xc0\x00\x01b\xc0\x05'
+ current = 0
+ (n1, cused1) = dns.name.from_wire(w, current)
+ current += cused1
+ (n2, cused2) = dns.name.from_wire(w, current)
+ current += cused2
+ (n3, cused3) = dns.name.from_wire(w, current)
+ en1 = dns.name.from_text('foo.')
+ en2 = dns.name.from_text('a.foo.')
+ en3 = dns.name.from_text('b.a.foo.')
+ ecused1 = 5
+ ecused2 = 4
+ ecused3 = 4
+ self.failUnless(n1 == en1 and cused1 == ecused1 and \
+ n2 == en2 and cused2 == ecused2 and \
+ n3 == en3 and cused3 == ecused3)
+
+ def testBadFromWire1(self):
+ def bad():
+ w = '\x03foo\xc0\x04'
+ (n, cused) = dns.name.from_wire(w, 0)
+ self.failUnlessRaises(dns.name.BadPointer, bad)
+
+ def testBadFromWire2(self):
+ def bad():
+ w = '\x03foo\xc0\x05'
+ (n, cused) = dns.name.from_wire(w, 0)
+ self.failUnlessRaises(dns.name.BadPointer, bad)
+
+ def testBadFromWire3(self):
+ def bad():
+ w = '\xbffoo'
+ (n, cused) = dns.name.from_wire(w, 0)
+ self.failUnlessRaises(dns.name.BadLabelType, bad)
+
+ def testBadFromWire4(self):
+ def bad():
+ w = '\x41foo'
+ (n, cused) = dns.name.from_wire(w, 0)
+ self.failUnlessRaises(dns.name.BadLabelType, bad)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: namedict.py,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.name
+import dns.namedict
+
+class NameTestCase(unittest.TestCase):
+
+ def setUp(self):
+ self.ndict = dns.namedict.NameDict()
+ n1 = dns.name.from_text('foo.bar.')
+ n2 = dns.name.from_text('bar.')
+ self.ndict[n1] = 1
+ self.ndict[n2] = 2
+ self.rndict = dns.namedict.NameDict()
+ n1 = dns.name.from_text('foo.bar', None)
+ n2 = dns.name.from_text('bar', None)
+ self.rndict[n1] = 1
+ self.rndict[n2] = 2
+
+ def testDepth(self):
+ self.failUnless(self.ndict.max_depth == 3)
+
+ def testLookup1(self):
+ k = dns.name.from_text('foo.bar.')
+ self.failUnless(self.ndict[k] == 1)
+
+ def testLookup2(self):
+ k = dns.name.from_text('foo.bar.')
+ self.failUnless(self.ndict.get_deepest_match(k)[1] == 1)
+
+ def testLookup3(self):
+ k = dns.name.from_text('a.b.c.foo.bar.')
+ self.failUnless(self.ndict.get_deepest_match(k)[1] == 1)
+
+ def testLookup4(self):
+ k = dns.name.from_text('a.b.c.bar.')
+ self.failUnless(self.ndict.get_deepest_match(k)[1] == 2)
+
+ def testLookup5(self):
+ def bad():
+ n = dns.name.from_text('a.b.c.')
+ (k, v) = self.ndict.get_deepest_match(n)
+ self.failUnlessRaises(KeyError, bad)
+
+ def testLookup6(self):
+ def bad():
+ (k, v) = self.ndict.get_deepest_match(dns.name.empty)
+ self.failUnlessRaises(KeyError, bad)
+
+ def testLookup7(self):
+ self.ndict[dns.name.empty] = 100
+ n = dns.name.from_text('a.b.c.')
+ (k, v) = self.ndict.get_deepest_match(n)
+ self.failUnless(v == 100)
+
+ def testLookup8(self):
+ def bad():
+ self.ndict['foo'] = 100
+ self.failUnlessRaises(ValueError, bad)
+
+ def testRelDepth(self):
+ self.failUnless(self.rndict.max_depth == 2)
+
+ def testRelLookup1(self):
+ k = dns.name.from_text('foo.bar', None)
+ self.failUnless(self.rndict[k] == 1)
+
+ def testRelLookup2(self):
+ k = dns.name.from_text('foo.bar', None)
+ self.failUnless(self.rndict.get_deepest_match(k)[1] == 1)
+
+ def testRelLookup3(self):
+ k = dns.name.from_text('a.b.c.foo.bar', None)
+ self.failUnless(self.rndict.get_deepest_match(k)[1] == 1)
+
+ def testRelLookup4(self):
+ k = dns.name.from_text('a.b.c.bar', None)
+ self.failUnless(self.rndict.get_deepest_match(k)[1] == 2)
+
+ def testRelLookup7(self):
+ self.rndict[dns.name.empty] = 100
+ n = dns.name.from_text('a.b.c', None)
+ (k, v) = self.rndict.get_deepest_match(n)
+ self.failUnless(v == 100)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: ntoaaton.py,v 1.6 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.exception
+import dns.ipv6
+
+class NtoAAtoNTestCase(unittest.TestCase):
+
+ def test_aton1(self):
+ a = dns.ipv6.inet_aton('::')
+ self.failUnless(a == '\x00' * 16)
+
+ def test_aton2(self):
+ a = dns.ipv6.inet_aton('::1')
+ self.failUnless(a == '\x00' * 15 + '\x01')
+
+ def test_aton3(self):
+ a = dns.ipv6.inet_aton('::10.0.0.1')
+ self.failUnless(a == '\x00' * 12 + '\x0a\x00\x00\x01')
+
+ def test_aton4(self):
+ a = dns.ipv6.inet_aton('abcd::dcba')
+ self.failUnless(a == '\xab\xcd' + '\x00' * 12 + '\xdc\xba')
+
+ def test_aton5(self):
+ a = dns.ipv6.inet_aton('1:2:3:4:5:6:7:8')
+ self.failUnless(a == \
+ '00010002000300040005000600070008'.decode('hex_codec'))
+
+ def test_bad_aton1(self):
+ def bad():
+ a = dns.ipv6.inet_aton('abcd:dcba')
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def test_bad_aton2(self):
+ def bad():
+ a = dns.ipv6.inet_aton('abcd::dcba::1')
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def test_bad_aton3(self):
+ def bad():
+ a = dns.ipv6.inet_aton('1:2:3:4:5:6:7:8:9')
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def test_aton1(self):
+ a = dns.ipv6.inet_aton('::')
+ self.failUnless(a == '\x00' * 16)
+
+ def test_aton2(self):
+ a = dns.ipv6.inet_aton('::1')
+ self.failUnless(a == '\x00' * 15 + '\x01')
+
+ def test_aton3(self):
+ a = dns.ipv6.inet_aton('::10.0.0.1')
+ self.failUnless(a == '\x00' * 12 + '\x0a\x00\x00\x01')
+
+ def test_aton4(self):
+ a = dns.ipv6.inet_aton('abcd::dcba')
+ self.failUnless(a == '\xab\xcd' + '\x00' * 12 + '\xdc\xba')
+
+ def test_ntoa1(self):
+ b = '00010002000300040005000600070008'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '1:2:3:4:5:6:7:8')
+
+ def test_ntoa2(self):
+ b = '\x00' * 16
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::')
+
+ def test_ntoa3(self):
+ b = '\x00' * 15 + '\x01'
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::1')
+
+ def test_ntoa4(self):
+ b = '\x80' + '\x00' * 15
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '8000::')
+
+ def test_ntoa5(self):
+ b = '\x01\xcd' + '\x00' * 12 + '\x03\xef'
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '1cd::3ef')
+
+ def test_ntoa6(self):
+ b = 'ffff00000000ffff000000000000ffff'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == 'ffff:0:0:ffff::ffff')
+
+ def test_ntoa7(self):
+ b = '00000000ffff000000000000ffffffff'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '0:0:ffff::ffff:ffff')
+
+ def test_ntoa8(self):
+ b = 'ffff0000ffff00000000ffff00000000'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == 'ffff:0:ffff::ffff:0:0')
+
+ def test_ntoa9(self):
+ b = '0000000000000000000000000a000001'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::10.0.0.1')
+
+ def test_ntoa10(self):
+ b = '0000000000000000000000010a000001'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::1:a00:1')
+
+ def test_ntoa11(self):
+ b = '00000000000000000000ffff0a000001'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::ffff:10.0.0.1')
+
+ def test_ntoa12(self):
+ b = '000000000000000000000000ffffffff'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::255.255.255.255')
+
+ def test_ntoa13(self):
+ b = '00000000000000000000ffffffffffff'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::ffff:255.255.255.255')
+
+ def test_ntoa14(self):
+ b = '0000000000000000000000000001ffff'.decode('hex_codec')
+ t = dns.ipv6.inet_ntoa(b)
+ self.failUnless(t == '::0.1.255.255')
+
+ def test_bad_ntoa1(self):
+ def bad():
+ a = dns.ipv6.inet_ntoa('')
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_bad_ntoa2(self):
+ def bad():
+ a = dns.ipv6.inet_ntoa('\x00' * 17)
+ self.failUnlessRaises(ValueError, bad)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rdtypeandclass.py,v 1.3 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.rdataclass
+import dns.rdatatype
+
+class RdTypeAndClassTestCase(unittest.TestCase):
+
+ # Classes
+
+ def test_class_meta1(self):
+ self.failUnless(dns.rdataclass.is_metaclass(dns.rdataclass.ANY))
+
+ def test_class_meta2(self):
+ self.failUnless(not dns.rdataclass.is_metaclass(dns.rdataclass.IN))
+
+ def test_class_bytext1(self):
+ self.failUnless(dns.rdataclass.from_text('IN') == dns.rdataclass.IN)
+
+ def test_class_bytext2(self):
+ self.failUnless(dns.rdataclass.from_text('CLASS1') ==
+ dns.rdataclass.IN)
+
+ def test_class_bytext_bounds1(self):
+ self.failUnless(dns.rdataclass.from_text('CLASS0') == 0)
+ self.failUnless(dns.rdataclass.from_text('CLASS65535') == 65535)
+
+ def test_class_bytext_bounds2(self):
+ def bad():
+ junk = dns.rdataclass.from_text('CLASS65536')
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_class_bytext_unknown(self):
+ def bad():
+ junk = dns.rdataclass.from_text('XXX')
+ self.failUnlessRaises(dns.rdataclass.UnknownRdataclass, bad)
+
+ def test_class_totext1(self):
+ self.failUnless(dns.rdataclass.to_text(dns.rdataclass.IN) == 'IN')
+
+ def test_class_totext1(self):
+ self.failUnless(dns.rdataclass.to_text(999) == 'CLASS999')
+
+ def test_class_totext_bounds1(self):
+ def bad():
+ junk = dns.rdataclass.to_text(-1)
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_class_totext_bounds2(self):
+ def bad():
+ junk = dns.rdataclass.to_text(65536)
+ self.failUnlessRaises(ValueError, bad)
+
+ # Types
+
+ def test_type_meta1(self):
+ self.failUnless(dns.rdatatype.is_metatype(dns.rdatatype.ANY))
+
+ def test_type_meta2(self):
+ self.failUnless(dns.rdatatype.is_metatype(dns.rdatatype.OPT))
+
+ def test_type_meta3(self):
+ self.failUnless(not dns.rdatatype.is_metatype(dns.rdatatype.A))
+
+ def test_type_singleton1(self):
+ self.failUnless(dns.rdatatype.is_singleton(dns.rdatatype.SOA))
+
+ def test_type_singleton2(self):
+ self.failUnless(not dns.rdatatype.is_singleton(dns.rdatatype.A))
+
+ def test_type_bytext1(self):
+ self.failUnless(dns.rdatatype.from_text('A') == dns.rdatatype.A)
+
+ def test_type_bytext2(self):
+ self.failUnless(dns.rdatatype.from_text('TYPE1') ==
+ dns.rdatatype.A)
+
+ def test_type_bytext_bounds1(self):
+ self.failUnless(dns.rdatatype.from_text('TYPE0') == 0)
+ self.failUnless(dns.rdatatype.from_text('TYPE65535') == 65535)
+
+ def test_type_bytext_bounds2(self):
+ def bad():
+ junk = dns.rdatatype.from_text('TYPE65536')
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_type_bytext_unknown(self):
+ def bad():
+ junk = dns.rdatatype.from_text('XXX')
+ self.failUnlessRaises(dns.rdatatype.UnknownRdatatype, bad)
+
+ def test_type_totext1(self):
+ self.failUnless(dns.rdatatype.to_text(dns.rdatatype.A) == 'A')
+
+ def test_type_totext1(self):
+ self.failUnless(dns.rdatatype.to_text(999) == 'TYPE999')
+
+ def test_type_totext_bounds1(self):
+ def bad():
+ junk = dns.rdatatype.to_text(-1)
+ self.failUnlessRaises(ValueError, bad)
+
+ def test_type_totext_bounds2(self):
+ def bad():
+ junk = dns.rdatatype.to_text(65536)
+ self.failUnlessRaises(ValueError, bad)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: resolver.py,v 1.4 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import sys
+import time
+import unittest
+
+import dns.name
+import dns.message
+import dns.name
+import dns.rdataclass
+import dns.rdatatype
+import dns.resolver
+
+resolv_conf = """
+ /t/t
+# comment 1
+; comment 2
+domain foo
+nameserver 10.0.0.1
+nameserver 10.0.0.2
+"""
+
+message_text = """id 1234
+opcode QUERY
+rcode NOERROR
+flags QR AA RD
+;QUESTION
+example. IN A
+;ANSWER
+example. 1 IN A 10.0.0.1
+;AUTHORITY
+;ADDITIONAL
+"""
+
+class ResolverTestCase(unittest.TestCase):
+
+ if sys.platform != 'win32':
+ def testRead(self):
+ f = cStringIO.StringIO(resolv_conf)
+ r = dns.resolver.Resolver(f)
+ self.failUnless(r.nameservers == ['10.0.0.1', '10.0.0.2'] and
+ r.domain == dns.name.from_text('foo'))
+
+ def testCacheExpiration(self):
+ message = dns.message.from_text(message_text)
+ name = dns.name.from_text('example.')
+ answer = dns.resolver.Answer(name, dns.rdatatype.A, dns.rdataclass.IN,
+ message)
+ cache = dns.resolver.Cache()
+ cache.put((name, dns.rdatatype.A, dns.rdataclass.IN), answer)
+ time.sleep(2)
+ self.failUnless(cache.get((name, dns.rdatatype.A, dns.rdataclass.IN))
+ is None)
+
+ def testCacheCleaning(self):
+ message = dns.message.from_text(message_text)
+ name = dns.name.from_text('example.')
+ answer = dns.resolver.Answer(name, dns.rdatatype.A, dns.rdataclass.IN,
+ message)
+ cache = dns.resolver.Cache(cleaning_interval=1.0)
+ cache.put((name, dns.rdatatype.A, dns.rdataclass.IN), answer)
+ time.sleep(2)
+ self.failUnless(cache.get((name, dns.rdatatype.A, dns.rdataclass.IN))
+ is None)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: rrset.py,v 1.2 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.rrset
+
+class RRsetTestCase(unittest.TestCase):
+
+ def testEqual1(self):
+ r1 = dns.rrset.from_text('foo', 300, 'in', 'a', '10.0.0.1', '10.0.0.2')
+ r2 = dns.rrset.from_text('FOO', 300, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 == r2)
+
+ def testEqual2(self):
+ r1 = dns.rrset.from_text('foo', 300, 'in', 'a', '10.0.0.1', '10.0.0.2')
+ r2 = dns.rrset.from_text('FOO', 600, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 == r2)
+
+ def testNotEqual1(self):
+ r1 = dns.rrset.from_text('fooa', 30, 'in', 'a', '10.0.0.1', '10.0.0.2')
+ r2 = dns.rrset.from_text('FOO', 30, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 != r2)
+
+ def testNotEqual2(self):
+ r1 = dns.rrset.from_text('foo', 30, 'in', 'a', '10.0.0.1', '10.0.0.3')
+ r2 = dns.rrset.from_text('FOO', 30, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 != r2)
+
+ def testNotEqual3(self):
+ r1 = dns.rrset.from_text('foo', 30, 'in', 'a', '10.0.0.1', '10.0.0.2',
+ '10.0.0.3')
+ r2 = dns.rrset.from_text('FOO', 30, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 != r2)
+
+ def testNotEqual4(self):
+ r1 = dns.rrset.from_text('foo', 30, 'in', 'a', '10.0.0.1')
+ r2 = dns.rrset.from_text('FOO', 30, 'in', 'a', '10.0.0.2', '10.0.0.1')
+ self.failUnless(r1 != r2)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: set.py,v 1.4 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.set
+
+# for convenience
+S = dns.set.Set
+
+class SimpleSetTestCase(unittest.TestCase):
+
+ def testLen1(self):
+ s1 = S()
+ self.failUnless(len(s1) == 0)
+
+ def testLen2(self):
+ s1 = S([1, 2, 3])
+ self.failUnless(len(s1) == 3)
+
+ def testLen3(self):
+ s1 = S([1, 2, 3, 3, 3])
+ self.failUnless(len(s1) == 3)
+
+ def testUnion1(self):
+ s1 = S([1, 2, 3])
+ s2 = S([1, 2, 3])
+ e = S([1, 2, 3])
+ self.failUnless(s1 | s2 == e)
+
+ def testUnion2(self):
+ s1 = S([1, 2, 3])
+ s2 = S([])
+ e = S([1, 2, 3])
+ self.failUnless(s1 | s2 == e)
+
+ def testUnion3(self):
+ s1 = S([1, 2, 3])
+ s2 = S([3, 4])
+ e = S([1, 2, 3, 4])
+ self.failUnless(s1 | s2 == e)
+
+ def testIntersection1(self):
+ s1 = S([1, 2, 3])
+ s2 = S([1, 2, 3])
+ e = S([1, 2, 3])
+ self.failUnless(s1 & s2 == e)
+
+ def testIntersection2(self):
+ s1 = S([0, 1, 2, 3])
+ s2 = S([1, 2, 3, 4])
+ e = S([1, 2, 3])
+ self.failUnless(s1 & s2 == e)
+
+ def testIntersection3(self):
+ s1 = S([1, 2, 3])
+ s2 = S([])
+ e = S([])
+ self.failUnless(s1 & s2 == e)
+
+ def testIntersection4(self):
+ s1 = S([1, 2, 3])
+ s2 = S([5, 4])
+ e = S([])
+ self.failUnless(s1 & s2 == e)
+
+ def testDifference1(self):
+ s1 = S([1, 2, 3])
+ s2 = S([5, 4])
+ e = S([1, 2, 3])
+ self.failUnless(s1 - s2 == e)
+
+ def testDifference2(self):
+ s1 = S([1, 2, 3])
+ s2 = S([])
+ e = S([1, 2, 3])
+ self.failUnless(s1 - s2 == e)
+
+ def testDifference3(self):
+ s1 = S([1, 2, 3])
+ s2 = S([3, 2])
+ e = S([1])
+ self.failUnless(s1 - s2 == e)
+
+ def testDifference4(self):
+ s1 = S([1, 2, 3])
+ s2 = S([3, 2, 1])
+ e = S([])
+ self.failUnless(s1 - s2 == e)
+
+ def testSubset1(self):
+ s1 = S([1, 2, 3])
+ s2 = S([3, 2, 1])
+ self.failUnless(s1.issubset(s2))
+
+ def testSubset2(self):
+ s1 = S([1, 2, 3])
+ self.failUnless(s1.issubset(s1))
+
+ def testSubset3(self):
+ s1 = S([])
+ s2 = S([1, 2, 3])
+ self.failUnless(s1.issubset(s2))
+
+ def testSubset4(self):
+ s1 = S([1])
+ s2 = S([1, 2, 3])
+ self.failUnless(s1.issubset(s2))
+
+ def testSubset5(self):
+ s1 = S([])
+ s2 = S([])
+ self.failUnless(s1.issubset(s2))
+
+ def testSubset6(self):
+ s1 = S([1, 4])
+ s2 = S([1, 2, 3])
+ self.failUnless(not s1.issubset(s2))
+
+ def testSuperset1(self):
+ s1 = S([1, 2, 3])
+ s2 = S([3, 2, 1])
+ self.failUnless(s1.issuperset(s2))
+
+ def testSuperset2(self):
+ s1 = S([1, 2, 3])
+ self.failUnless(s1.issuperset(s1))
+
+ def testSuperset3(self):
+ s1 = S([1, 2, 3])
+ s2 = S([])
+ self.failUnless(s1.issuperset(s2))
+
+ def testSuperset4(self):
+ s1 = S([1, 2, 3])
+ s2 = S([1])
+ self.failUnless(s1.issuperset(s2))
+
+ def testSuperset5(self):
+ s1 = S([])
+ s2 = S([])
+ self.failUnless(s1.issuperset(s2))
+
+ def testSuperset6(self):
+ s1 = S([1, 2, 3])
+ s2 = S([1, 4])
+ self.failUnless(not s1.issuperset(s2))
+
+ def testUpdate1(self):
+ s1 = S([1, 2, 3])
+ u = (4, 5, 6)
+ e = S([1, 2, 3, 4, 5, 6])
+ s1.update(u)
+ self.failUnless(s1 == e)
+
+ def testUpdate2(self):
+ s1 = S([1, 2, 3])
+ u = []
+ e = S([1, 2, 3])
+ s1.update(u)
+ self.failUnless(s1 == e)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: tokenizer.py,v 1.7 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.exception
+import dns.tokenizer
+
+class TokenizerTestCase(unittest.TestCase):
+
+ def testQuotedString1(self):
+ tok = dns.tokenizer.Tokenizer(r'"foo"')
+ (ttype, value) = tok.get()
+ self.failUnless(ttype == dns.tokenizer.QUOTED_STRING and
+ value == 'foo')
+
+ def testQuotedString2(self):
+ tok = dns.tokenizer.Tokenizer(r'""')
+ (ttype, value) = tok.get()
+ self.failUnless(ttype == dns.tokenizer.QUOTED_STRING and
+ value == '')
+
+ def testQuotedString3(self):
+ tok = dns.tokenizer.Tokenizer(r'"\"foo\""')
+ (ttype, value) = tok.get()
+ self.failUnless(ttype == dns.tokenizer.QUOTED_STRING and
+ value == '"foo"')
+
+ def testQuotedString4(self):
+ tok = dns.tokenizer.Tokenizer(r'"foo\010bar"')
+ (ttype, value) = tok.get()
+ self.failUnless(ttype == dns.tokenizer.QUOTED_STRING and
+ value == 'foo\x0abar')
+
+ def testQuotedString5(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer(r'"foo')
+ (ttype, value) = tok.get()
+ self.failUnlessRaises(dns.exception.UnexpectedEnd, bad)
+
+ def testQuotedString6(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer(r'"foo\01')
+ (ttype, value) = tok.get()
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def testQuotedString7(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer('"foo\nbar"')
+ (ttype, value) = tok.get()
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def testEmpty1(self):
+ tok = dns.tokenizer.Tokenizer('')
+ (ttype, value) = tok.get()
+ self.failUnless(ttype == dns.tokenizer.EOF)
+
+ def testEmpty2(self):
+ tok = dns.tokenizer.Tokenizer('')
+ (ttype1, value1) = tok.get()
+ (ttype2, value2) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.EOF and
+ ttype2 == dns.tokenizer.EOF)
+
+ def testEOL(self):
+ tok = dns.tokenizer.Tokenizer('\n')
+ (ttype1, value1) = tok.get()
+ (ttype2, value2) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.EOL and
+ ttype2 == dns.tokenizer.EOF)
+
+ def testWS1(self):
+ tok = dns.tokenizer.Tokenizer(' \n')
+ (ttype1, value1) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.EOL)
+
+ def testWS2(self):
+ tok = dns.tokenizer.Tokenizer(' \n')
+ (ttype1, value1) = tok.get(want_leading=True)
+ self.failUnless(ttype1 == dns.tokenizer.WHITESPACE)
+
+ def testComment1(self):
+ tok = dns.tokenizer.Tokenizer(' ;foo\n')
+ (ttype1, value1) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.EOL)
+
+ def testComment2(self):
+ tok = dns.tokenizer.Tokenizer(' ;foo\n')
+ (ttype1, value1) = tok.get(want_comment = True)
+ (ttype2, value2) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.COMMENT and
+ value1 == 'foo' and
+ ttype2 == dns.tokenizer.EOL)
+
+ def testComment3(self):
+ tok = dns.tokenizer.Tokenizer(' ;foo bar\n')
+ (ttype1, value1) = tok.get(want_comment = True)
+ (ttype2, value2) = tok.get()
+ self.failUnless(ttype1 == dns.tokenizer.COMMENT and
+ value1 == 'foo bar' and
+ ttype2 == dns.tokenizer.EOL)
+
+ def testMultiline1(self):
+ tok = dns.tokenizer.Tokenizer('( foo\n\n bar\n)')
+ tokens = list(iter(tok))
+ self.failUnless(tokens == [(dns.tokenizer.IDENTIFIER, 'foo'),
+ (dns.tokenizer.IDENTIFIER, 'bar')])
+
+ def testMultiline2(self):
+ tok = dns.tokenizer.Tokenizer('( foo\n\n bar\n)\n')
+ tokens = list(iter(tok))
+ self.failUnless(tokens == [(dns.tokenizer.IDENTIFIER, 'foo'),
+ (dns.tokenizer.IDENTIFIER, 'bar'),
+ (dns.tokenizer.EOL, '\n')])
+ def testMultiline3(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer('foo)')
+ tokens = list(iter(tok))
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def testMultiline4(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer('((foo)')
+ tokens = list(iter(tok))
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+ def testUnget1(self):
+ tok = dns.tokenizer.Tokenizer('foo')
+ t1 = tok.get()
+ tok.unget(t1)
+ t2 = tok.get()
+ self.failUnless(t1 == t2 and t1 == (dns.tokenizer.IDENTIFIER, 'foo'))
+
+ def testUnget2(self):
+ def bad():
+ tok = dns.tokenizer.Tokenizer('foo')
+ t1 = tok.get()
+ tok.unget(t1)
+ tok.unget(t1)
+ self.failUnlessRaises(dns.tokenizer.UngetBufferFull, bad)
+
+ def testGetEOL1(self):
+ tok = dns.tokenizer.Tokenizer('\n')
+ t = tok.get_eol()
+ self.failUnless(t == '\n')
+
+ def testGetEOL2(self):
+ tok = dns.tokenizer.Tokenizer('')
+ t = tok.get_eol()
+ self.failUnless(t == '')
+
+ def testEscapedDelimiter1(self):
+ tok = dns.tokenizer.Tokenizer(r'ch\ ld')
+ t = tok.get()
+ self.failUnless(t == (dns.tokenizer.IDENTIFIER, r'ch ld'))
+
+ def testEscapedDelimiter2(self):
+ tok = dns.tokenizer.Tokenizer(r'ch\0ld')
+ t = tok.get()
+ self.failUnless(t == (dns.tokenizer.IDENTIFIER, r'ch\0ld'))
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: update.py,v 1.5 2004/03/19 00:17:27 halley Exp $
+
+import unittest
+
+import dns.update
+import dns.rdata
+import dns.rdataset
+
+goodhex = '0001 2800 0001 0005 0007 0000' \
+ '076578616d706c6500 0006 0001' \
+ '03666f6fc00c 00ff 00ff 00000000 0000' \
+ 'c019 0001 00ff 00000000 0000' \
+ '03626172c00c 0001 0001 00000000 0004 0a000005' \
+ '05626c617a32c00c 00ff 00fe 00000000 0000' \
+ 'c049 0001 00fe 00000000 0000' \
+ 'c019 0001 00ff 00000000 0000' \
+ 'c019 0001 0001 0000012c 0004 0a000001' \
+ 'c019 0001 0001 0000012c 0004 0a000002' \
+ 'c035 0001 0001 0000012c 0004 0a000003' \
+ 'c035 0001 00fe 00000000 0004 0a000004' \
+ '04626c617ac00c 0001 00ff 00000000 0000' \
+ 'c049 00ff 00ff 00000000 0000'
+
+goodwire = goodhex.replace(' ', '').decode('hex_codec')
+
+update_text="""id 1
+opcode UPDATE
+rcode NOERROR
+;ZONE
+example. IN SOA
+;PREREQ
+foo ANY ANY
+foo ANY A
+bar 0 IN A 10.0.0.5
+blaz2 NONE ANY
+blaz2 NONE A
+;UPDATE
+foo ANY A
+foo 300 IN A 10.0.0.1
+foo 300 IN A 10.0.0.2
+bar 300 IN A 10.0.0.3
+bar 0 NONE A 10.0.0.4
+blaz ANY A
+blaz2 ANY ANY
+"""
+
+class UpdateTestCase(unittest.TestCase):
+
+ def test_to_wire1(self):
+ update = dns.update.Update('example')
+ update.id = 1
+ update.present('foo')
+ update.present('foo', 'a')
+ update.present('bar', 'a', '10.0.0.5')
+ update.absent('blaz2')
+ update.absent('blaz2', 'a')
+ update.replace('foo', 300, 'a', '10.0.0.1', '10.0.0.2')
+ update.add('bar', 300, 'a', '10.0.0.3')
+ update.delete('bar', 'a', '10.0.0.4')
+ update.delete('blaz','a')
+ update.delete('blaz2')
+ self.failUnless(update.to_wire() == goodwire)
+
+ def test_to_wire2(self):
+ update = dns.update.Update('example')
+ update.id = 1
+ update.present('foo')
+ update.present('foo', 'a')
+ update.present('bar', 'a', '10.0.0.5')
+ update.absent('blaz2')
+ update.absent('blaz2', 'a')
+ update.replace('foo', 300, 'a', '10.0.0.1', '10.0.0.2')
+ update.add('bar', 300, dns.rdata.from_text(1, 1, '10.0.0.3'))
+ update.delete('bar', 'a', '10.0.0.4')
+ update.delete('blaz','a')
+ update.delete('blaz2')
+ self.failUnless(update.to_wire() == goodwire)
+
+ def test_to_wire3(self):
+ update = dns.update.Update('example')
+ update.id = 1
+ update.present('foo')
+ update.present('foo', 'a')
+ update.present('bar', 'a', '10.0.0.5')
+ update.absent('blaz2')
+ update.absent('blaz2', 'a')
+ update.replace('foo', 300, 'a', '10.0.0.1', '10.0.0.2')
+ update.add('bar', dns.rdataset.from_text(1, 1, 300, '10.0.0.3'))
+ update.delete('bar', 'a', '10.0.0.4')
+ update.delete('blaz','a')
+ update.delete('blaz2')
+ self.failUnless(update.to_wire() == goodwire)
+
+ def test_from_text1(self):
+ update = dns.message.from_text(update_text)
+ w = update.to_wire(origin=dns.name.from_text('example'),
+ want_shuffle=False)
+ self.failUnless(w == goodwire)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+# Copyright (C) 2003, 2004 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+# $Id: zone.py,v 1.21 2004/03/19 00:17:27 halley Exp $
+
+import cStringIO
+import filecmp
+import os
+import unittest
+
+import dns.exception
+import dns.rdata
+import dns.rdataclass
+import dns.rdatatype
+import dns.rrset
+import dns.zone
+
+example_text = """$TTL 3600
+$ORIGIN example.
+@ soa foo bar 1 2 3 4 5
+@ ns ns1
+@ ns ns2
+ns1 a 10.0.0.1
+ns2 a 10.0.0.2
+$TTL 300
+$ORIGIN foo.example.
+bar mx 0 blaz
+"""
+
+example_text_output = """@ 3600 IN SOA foo bar 1 2 3 4 5
+@ 3600 IN NS ns1
+@ 3600 IN NS ns2
+bar.foo 300 IN MX 0 blaz.foo
+ns1 3600 IN A 10.0.0.1
+ns2 3600 IN A 10.0.0.2
+"""
+
+something_quite_similar = """@ 3600 IN SOA foo bar 1 2 3 4 5
+@ 3600 IN NS ns1
+@ 3600 IN NS ns2
+bar.foo 300 IN MX 0 blaz.foo
+ns1 3600 IN A 10.0.0.1
+ns2 3600 IN A 10.0.0.3
+"""
+
+something_different = """@ 3600 IN SOA fooa bar 1 2 3 4 5
+@ 3600 IN NS ns11
+@ 3600 IN NS ns21
+bar.fooa 300 IN MX 0 blaz.fooa
+ns11 3600 IN A 10.0.0.11
+ns21 3600 IN A 10.0.0.21
+"""
+
+ttl_example_text = """$TTL 1h
+$ORIGIN example.
+@ soa foo bar 1 2 3 4 5
+@ ns ns1
+@ ns ns2
+ns1 1d1s a 10.0.0.1
+ns2 1w1D1h1m1S a 10.0.0.2
+"""
+
+no_soa_text = """$TTL 1h
+$ORIGIN example.
+@ ns ns1
+@ ns ns2
+ns1 1d1s a 10.0.0.1
+ns2 1w1D1h1m1S a 10.0.0.2
+"""
+
+no_ns_text = """$TTL 1h
+$ORIGIN example.
+@ soa foo bar 1 2 3 4 5
+"""
+
+include_text = """$INCLUDE "example"
+"""
+
+bad_directive_text = """$FOO bar
+$ORIGIN example.
+@ soa foo bar 1 2 3 4 5
+@ ns ns1
+@ ns ns2
+ns1 1d1s a 10.0.0.1
+ns2 1w1D1h1m1S a 10.0.0.2
+"""
+
+class ZoneTestCase(unittest.TestCase):
+
+ def testFromFile1(self):
+ z = dns.zone.from_file('example', 'example')
+ ok = False
+ try:
+ z.to_file('example1.out', nl='\x0a')
+ ok = filecmp.cmp('example1.out', 'example1.good')
+ finally:
+ os.unlink('example1.out')
+ self.failUnless(ok)
+
+ def testFromFile2(self):
+ z = dns.zone.from_file('example', 'example', relativize=False)
+ ok = False
+ try:
+ z.to_file('example2.out', relativize=False, nl='\x0a')
+ ok = filecmp.cmp('example2.out', 'example2.good')
+ finally:
+ os.unlink('example2.out')
+ self.failUnless(ok)
+
+ def testFromText(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ f = cStringIO.StringIO()
+ names = z.nodes.keys()
+ names.sort()
+ for n in names:
+ print >> f, z[n].to_text(n)
+ self.failUnless(f.getvalue() == example_text_output)
+
+ def testTorture1(self):
+ #
+ # Read a zone containing all our supported RR types, and
+ # for each RR in the zone, convert the rdata into wire format
+ # and then back out, and see if we get equal rdatas.
+ #
+ f = cStringIO.StringIO()
+ o = dns.name.from_text('example.')
+ z = dns.zone.from_file('example', o)
+ for (name, node) in z.iteritems():
+ for rds in node:
+ for rd in rds:
+ f.seek(0)
+ f.truncate()
+ rd.to_wire(f, origin=o)
+ wire = f.getvalue()
+ rd2 = dns.rdata.from_wire(rds.rdclass, rds.rdtype,
+ wire, 0, len(wire),
+ origin = o)
+ self.failUnless(rd == rd2)
+
+ def testEqual(self):
+ z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z2 = dns.zone.from_text(example_text_output, 'example.',
+ relativize=True)
+ self.failUnless(z1 == z2)
+
+ def testNotEqual1(self):
+ z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z2 = dns.zone.from_text(something_quite_similar, 'example.',
+ relativize=True)
+ self.failUnless(z1 != z2)
+
+ def testNotEqual2(self):
+ z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z2 = dns.zone.from_text(something_different, 'example.',
+ relativize=True)
+ self.failUnless(z1 != z2)
+
+ def testNotEqual3(self):
+ z1 = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z2 = dns.zone.from_text(something_different, 'example2.',
+ relativize=True)
+ self.failUnless(z1 != z2)
+
+ def testFindRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rds = z.find_rdataset('@', 'soa')
+ exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
+ self.failUnless(rds == exrds)
+
+ def testFindRdataset2(self):
+ def bad():
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rds = z.find_rdataset('@', 'loc')
+ self.failUnlessRaises(KeyError, bad)
+
+ def testFindRRset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rrs = z.find_rrset('@', 'soa')
+ exrrs = dns.rrset.from_text('@', 300, 'IN', 'SOA', 'foo bar 1 2 3 4 5')
+ self.failUnless(rrs == exrrs)
+
+ def testFindRRset2(self):
+ def bad():
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rrs = z.find_rrset('@', 'loc')
+ self.failUnlessRaises(KeyError, bad)
+
+ def testGetRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rds = z.get_rdataset('@', 'soa')
+ exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
+ self.failUnless(rds == exrds)
+
+ def testGetRdataset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rds = z.get_rdataset('@', 'loc')
+ self.failUnless(rds == None)
+
+ def testGetRRset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rrs = z.get_rrset('@', 'soa')
+ exrrs = dns.rrset.from_text('@', 300, 'IN', 'SOA', 'foo bar 1 2 3 4 5')
+ self.failUnless(rrs == exrrs)
+
+ def testGetRRset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rrs = z.get_rrset('@', 'loc')
+ self.failUnless(rrs == None)
+
+ def testReplaceRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rdataset = dns.rdataset.from_text('in', 'ns', 300, 'ns3', 'ns4')
+ z.replace_rdataset('@', rdataset)
+ rds = z.get_rdataset('@', 'ns')
+ self.failUnless(rds is rdataset)
+
+ def testReplaceRdataset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ rdataset = dns.rdataset.from_text('in', 'txt', 300, '"foo"')
+ z.replace_rdataset('@', rdataset)
+ rds = z.get_rdataset('@', 'txt')
+ self.failUnless(rds is rdataset)
+
+ def testDeleteRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z.delete_rdataset('@', 'ns')
+ rds = z.get_rdataset('@', 'ns')
+ self.failUnless(rds is None)
+
+ def testDeleteRdataset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ z.delete_rdataset('ns1', 'a')
+ node = z.get_node('ns1')
+ self.failUnless(node is None)
+
+ def testNodeFindRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.find_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
+ exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
+ self.failUnless(rds == exrds)
+
+ def testNodeFindRdataset2(self):
+ def bad():
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.find_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
+ self.failUnlessRaises(KeyError, bad)
+
+ def testNodeGetRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
+ exrds = dns.rdataset.from_text('IN', 'SOA', 300, 'foo bar 1 2 3 4 5')
+ self.failUnless(rds == exrds)
+
+ def testNodeGetRdataset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
+ self.failUnless(rds == None)
+
+ def testNodeDeleteRdataset1(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.delete_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
+ rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
+ self.failUnless(rds == None)
+
+ def testNodeDeleteRdataset2(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ node = z['@']
+ rds = node.delete_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
+ rds = node.get_rdataset(dns.rdataclass.IN, dns.rdatatype.LOC)
+ self.failUnless(rds == None)
+
+ def testIterateRdatasets(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ ns = [n for n, r in z.iterate_rdatasets('A')]
+ ns.sort()
+ self.failUnless(ns == [dns.name.from_text('ns1', None),
+ dns.name.from_text('ns2', None)])
+
+ def testIterateRdatas(self):
+ z = dns.zone.from_text(example_text, 'example.', relativize=True)
+ l = list(z.iterate_rdatas('A'))
+ l.sort()
+ exl = [(dns.name.from_text('ns1', None),
+ 3600,
+ dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
+ '10.0.0.1')),
+ (dns.name.from_text('ns2', None),
+ 3600,
+ dns.rdata.from_text(dns.rdataclass.IN, dns.rdatatype.A,
+ '10.0.0.2'))]
+ self.failUnless(l == exl)
+
+ def testTTLs(self):
+ z = dns.zone.from_text(ttl_example_text, 'example.', relativize=True)
+ n = z['@']
+ rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.SOA)
+ self.failUnless(rds.ttl == 3600)
+ n = z['ns1']
+ rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.A)
+ self.failUnless(rds.ttl == 86401)
+ n = z['ns2']
+ rds = n.get_rdataset(dns.rdataclass.IN, dns.rdatatype.A)
+ self.failUnless(rds.ttl == 694861)
+
+ def testNoSOA(self):
+ def bad():
+ z = dns.zone.from_text(no_soa_text, 'example.',
+ relativize=True)
+ self.failUnlessRaises(dns.zone.NoSOA, bad)
+
+ def testNoNS(self):
+ def bad():
+ z = dns.zone.from_text(no_ns_text, 'example.',
+ relativize=True)
+ self.failUnlessRaises(dns.zone.NoNS, bad)
+
+ def testInclude(self):
+ z1 = dns.zone.from_text(include_text, 'example.', relativize=True,
+ allow_include=True)
+ z2 = dns.zone.from_file('example', 'example.', relativize=True)
+ self.failUnless(z1 == z2)
+
+ def testBadDirective(self):
+ def bad():
+ z = dns.zone.from_text(bad_directive_text, 'example.',
+ relativize=True)
+ self.failUnlessRaises(dns.exception.SyntaxError, bad)
+
+if __name__ == '__main__':
+ unittest.main()
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:21:09 2004 4751.10
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:29 2004 4765.1
--- /dev/null
+Bob Halley <halley@dnspython.org> Wed Mar 24 08:22:29 2004 4765.0
--- /dev/null
+Copyright (C) @YEARS@ Nominum, Inc.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose with or without fee is hereby granted,
+provided that the above copyright notice and this permission notice
+appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
--- /dev/null
+./.cvsignore X 2003,2004
+./ChangeLog X 2003,2004
+./LICENSE X 2003,2004
+./MANIFEST.in X 2003,2004
+./Makefile MAKE 2003,2004
+./README X 2003,2004
+./TODO X 2003,2004
+./dns/__init__.py PYTHON 2003,2004
+./dns/dnssec.py PYTHON 2003,2004
+./dns/exception.py PYTHON 2003,2004
+./dns/flags.py PYTHON 2001,2002,2003,2004
+./dns/inet.py PYTHON 2003,2004
+./dns/ipv4.py PYTHON 2003,2004
+./dns/ipv6.py PYTHON 2003,2004
+./dns/message.py PYTHON 2001,2002,2003,2004
+./dns/name.py PYTHON 2001,2002,2003,2004
+./dns/namedict.py PYTHON 2003,2004
+./dns/node.py PYTHON 2001,2002,2003,2004
+./dns/opcode.py PYTHON 2001,2002,2003,2004
+./dns/query.py PYTHON 2003,2004
+./dns/rcode.py PYTHON 2001,2002,2003,2004
+./dns/rdata.py PYTHON 2001,2002,2003,2004
+./dns/rdataclass.py PYTHON 2001,2002,2003,2004
+./dns/rdataset.py PYTHON 2001,2002,2003,2004
+./dns/rdatatype.py PYTHON 2001,2002,2003,2004
+./dns/rdtypes/ANY/AFSDB.py PYTHON 2003,2004
+./dns/rdtypes/ANY/CERT.py PYTHON 2003,2004
+./dns/rdtypes/ANY/CNAME.py PYTHON 2003,2004
+./dns/rdtypes/ANY/DNAME.py PYTHON 2003,2004
+./dns/rdtypes/ANY/DNSKEY.py PYTHON 2004
+./dns/rdtypes/ANY/DS.py PYTHON 2003,2004
+./dns/rdtypes/ANY/GPOS.py PYTHON 2003,2004
+./dns/rdtypes/ANY/HINFO.py PYTHON 2003,2004
+./dns/rdtypes/ANY/ISDN.py PYTHON 2003,2004
+./dns/rdtypes/ANY/KEY.py PYTHON 2003,2004
+./dns/rdtypes/ANY/LOC.py PYTHON 2003,2004
+./dns/rdtypes/ANY/MX.py PYTHON 2003,2004
+./dns/rdtypes/ANY/NS.py PYTHON 2003,2004
+./dns/rdtypes/ANY/NSEC.py PYTHON 2004
+./dns/rdtypes/ANY/NXT.py PYTHON 2003,2004
+./dns/rdtypes/ANY/PTR.py PYTHON 2003,2004
+./dns/rdtypes/ANY/RP.py PYTHON 2003,2004
+./dns/rdtypes/ANY/RRSIG.py PYTHON 2004
+./dns/rdtypes/ANY/RT.py PYTHON 2003,2004
+./dns/rdtypes/ANY/SIG.py PYTHON 2003,2004
+./dns/rdtypes/ANY/SOA.py PYTHON 2003,2004
+./dns/rdtypes/ANY/TXT.py PYTHON 2003,2004
+./dns/rdtypes/ANY/X25.py PYTHON 2003,2004
+./dns/rdtypes/ANY/__init__.py PYTHON 2003,2004
+./dns/rdtypes/IN/A.py PYTHON 2003,2004
+./dns/rdtypes/IN/AAAA.py PYTHON 2003,2004
+./dns/rdtypes/IN/APL.py PYTHON 2003,2004
+./dns/rdtypes/IN/KX.py PYTHON 2003,2004
+./dns/rdtypes/IN/NAPTR.py PYTHON 2003,2004
+./dns/rdtypes/IN/NSAP.py PYTHON 2003,2004
+./dns/rdtypes/IN/NSAP_PTR.py PYTHON 2003,2004
+./dns/rdtypes/IN/PX.py PYTHON 2003,2004
+./dns/rdtypes/IN/SRV.py PYTHON 2003,2004
+./dns/rdtypes/IN/WKS.py PYTHON 2003,2004
+./dns/rdtypes/IN/__init__.py PYTHON 2003,2004
+./dns/rdtypes/__init__.py PYTHON 2003,2004
+./dns/rdtypes/keybase.py PYTHON 2004
+./dns/rdtypes/mxbase.py PYTHON 2003,2004
+./dns/rdtypes/nsbase.py PYTHON 2003,2004
+./dns/rdtypes/sigbase.py PYTHON 2004
+./dns/renderer.py PYTHON 2001,2002,2003,2004
+./dns/resolver.py PYTHON 2003,2004
+./dns/rrset.py PYTHON 2003,2004
+./dns/set.py PYTHON 2003,2004
+./dns/tokenizer.py PYTHON 2003,2004
+./dns/tsig.py PYTHON 2001,2002,2003,2004
+./dns/tsigkeyring.py PYTHON 2003,2004
+./dns/ttl.py PYTHON 2003,2004
+./dns/update.py PYTHON 2003,2004
+./dns/version.py PYTHON 2003,2004
+./dns/zone.py PYTHON 2003,2004
+./examples/mx.py X 2003,2004
+./examples/name.py X 2003,2004
+./examples/reverse.py X 2003,2004
+./examples/xfr.py X 2003,2004
+./setup.py PYTHON 2003,2004
+./tests/.cvsignore X 2003,2004
+./tests/Makefile MAKE 2003,2004
+./tests/example X 2003,2004
+./tests/example1.good X 2003,2004
+./tests/example2.good X 2003,2004
+./tests/flags.py PYTHON 2003,2004
+./tests/message.py PYTHON 2003,2004
+./tests/name.py PYTHON 2003,2004
+./tests/namedict.py PYTHON 2003,2004
+./tests/ntoaaton.py PYTHON 2003,2004
+./tests/rdtypeandclass.py PYTHON 2003,2004
+./tests/resolver.py PYTHON 2003,2004
+./tests/rrset.py PYTHON 2003,2004
+./tests/set.py PYTHON 2003,2004
+./tests/tokenizer.py PYTHON 2003,2004
+./tests/update.py PYTHON 2003,2004
+./tests/zone.py PYTHON 2003,2004
+./util/COPYRIGHT X 2003,2004
+./util/copyrights X 2003,2004
projects / thirdparty / dnspython.git / commitdiff
