src/ddns/providers.py

   1 #!/usr/bin/python
   2 ###############################################################################
   3 #                                                                             #
   4 # ddns - A dynamic DNS client for IPFire                                      #
   5 # Copyright (C) 2012 IPFire development team                                  #
   6 #                                                                             #
   7 # This program is free software: you can redistribute it and/or modify        #
   8 # it under the terms of the GNU General Public License as published by        #
   9 # the Free Software Foundation, either version 3 of the License, or           #
  10 # (at your option) any later version.                                         #
  11 #                                                                             #
  12 # This program is distributed in the hope that it will be useful,             #
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of              #
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               #
  15 # GNU General Public License for more details.                                #
  16 #                                                                             #
  17 # You should have received a copy of the GNU General Public License           #
  18 # along with this program.  If not, see <http://www.gnu.org/licenses/>.       #
  19 #                                                                             #
  20 ###############################################################################
  21
  22 import logging
  23 import subprocess
  24 import urllib2
  25 import xml.dom.minidom
  26
  27 from i18n import _
  28
  29 # Import all possible exception types.
  30 from .errors import *
  31
  32 logger = logging.getLogger("ddns.providers")
  33 logger.propagate = 1
  34
  35 _providers = {}
  36
  37 def get():
  38         """
  39                 Returns a dict with all automatically registered providers.
  40         """
  41         return _providers.copy()
  42
  43 class DDNSProvider(object):
  44         # A short string that uniquely identifies
  45         # this provider.
  46         handle = None
  47
  48         # The full name of the provider.
  49         name = None
  50
  51         # A weburl to the homepage of the provider.
  52         # (Where to register a new account?)
  53         website = None
  54
  55         # A list of supported protocols.
  56         protocols = ("ipv6", "ipv4")
  57
  58         DEFAULT_SETTINGS = {}
  59
  60         # Automatically register all providers.
  61         class __metaclass__(type):
  62                 def __init__(provider, name, bases, dict):
  63                         type.__init__(provider, name, bases, dict)
  64
  65                         # The main class from which is inherited is not registered
  66                         # as a provider.
  67                         if name == "DDNSProvider":
  68                                 return
  69
  70                         if not all((provider.handle, provider.name, provider.website)):
  71                                 raise DDNSError(_("Provider is not properly configured"))
  72
  73                         assert not _providers.has_key(provider.handle), \
  74                                 "Provider '%s' has already been registered" % provider.handle
  75
  76                         _providers[provider.handle] = provider
  77
  78         def __init__(self, core, **settings):
  79                 self.core = core
  80
  81                 # Copy a set of default settings and
  82                 # update them by those from the configuration file.
  83                 self.settings = self.DEFAULT_SETTINGS.copy()
  84                 self.settings.update(settings)
  85
  86         def __repr__(self):
  87                 return "<DDNS Provider %s (%s)>" % (self.name, self.handle)
  88
  89         def __cmp__(self, other):
  90                 return cmp(self.hostname, other.hostname)
  91
  92         def get(self, key, default=None):
  93                 """
  94                         Get a setting from the settings dictionary.
  95                 """
  96                 return self.settings.get(key, default)
  97
  98         @property
  99         def hostname(self):
 100                 """
 101                         Fast access to the hostname.
 102                 """
 103                 return self.get("hostname")
 104
 105         @property
 106         def username(self):
 107                 """
 108                         Fast access to the username.
 109                 """
 110                 return self.get("username")
 111
 112         @property
 113         def password(self):
 114                 """
 115                         Fast access to the password.
 116                 """
 117                 return self.get("password")
 118
 119         @property
 120         def token(self):
 121                 """
 122                         Fast access to the token.
 123                 """
 124                 return self.get("token")
 125
 126         def __call__(self, force=False):
 127                 if force:
 128                         logger.debug(_("Updating %s forced") % self.hostname)
 129
 130                 # Check if we actually need to update this host.
 131                 elif self.is_uptodate(self.protocols):
 132                         logger.debug(_("%s is already up to date") % self.hostname)
 133                         return
 134
 135                 # Execute the update.
 136                 self.update()
 137
 138         def update(self):
 139                 raise NotImplementedError
 140
 141         def is_uptodate(self, protos):
 142                 """
 143                         Returns True if this host is already up to date
 144                         and does not need to change the IP address on the
 145                         name server.
 146                 """
 147                 for proto in protos:
 148                         addresses = self.core.system.resolve(self.hostname, proto)
 149
 150                         current_address = self.get_address(proto)
 151
 152                         # If no addresses for the given protocol exist, we
 153                         # are fine...
 154                         if current_address is None and not addresses:
 155                                 continue
 156
 157                         if not current_address in addresses:
 158                                 return False
 159
 160                 return True
 161
 162         def send_request(self, *args, **kwargs):
 163                 """
 164                         Proxy connection to the send request
 165                         method.
 166                 """
 167                 return self.core.system.send_request(*args, **kwargs)
 168
 169         def get_address(self, proto, default=None):
 170                 """
 171                         Proxy method to get the current IP address.
 172                 """
 173                 return self.core.system.get_address(proto) or default
 174
 175
 176 class DDNSProtocolDynDNS2(object):
 177         """
 178                 This is an abstract class that implements the DynDNS updater
 179                 protocol version 2. As this is a popular way to update dynamic
 180                 DNS records, this class is supposed make the provider classes
 181                 shorter and simpler.
 182         """
 183
 184         # Information about the format of the request is to be found
 185         # http://dyn.com/support/developers/api/perform-update/
 186         # http://dyn.com/support/developers/api/return-codes/
 187
 188         def _prepare_request_data(self):
 189                 data = {
 190                         "hostname" : self.hostname,
 191                         "myip"     : self.get_address("ipv4"),
 192                 }
 193
 194                 return data
 195
 196         def update(self):
 197                 data = self._prepare_request_data()
 198
 199                 # Send update to the server.
 200                 response = self.send_request(self.url, data=data,
 201                         username=self.username, password=self.password)
 202
 203                 # Get the full response message.
 204                 output = response.read()
 205
 206                 # Handle success messages.
 207                 if output.startswith("good") or output.startswith("nochg"):
 208                         return
 209
 210                 # Handle error codes.
 211                 if output == "badauth":
 212                         raise DDNSAuthenticationError
 213                 elif output == "aduse":
 214                         raise DDNSAbuseError
 215                 elif output == "notfqdn":
 216                         raise DDNSRequestError(_("No valid FQDN was given."))
 217                 elif output == "nohost":
 218                         raise DDNSRequestError(_("Specified host does not exist."))
 219                 elif output == "911":
 220                         raise DDNSInternalServerError
 221                 elif output == "dnserr":
 222                         raise DDNSInternalServerError(_("DNS error encountered."))
 223
 224                 # If we got here, some other update error happened.
 225                 raise DDNSUpdateError(_("Server response: %s") % output)
 226
 227
 228 class DDNSResponseParserXML(object):
 229         """
 230                 This class provides a parser for XML responses which
 231                 will be sent by various providers. This class uses the python
 232                 shipped XML minidom module to walk through the XML tree and return
 233                 a requested element.
 234         """
 235
 236         def get_xml_tag_value(self, document, content):
 237                 # Send input to the parser.
 238                 xmldoc = xml.dom.minidom.parseString(document)
 239
 240                 # Get XML elements by the given content.
 241                 element = xmldoc.getElementsByTagName(content)
 242
 243                 # If no element has been found, we directly can return None.
 244                 if not element:
 245                         return None
 246
 247                 # Only get the first child from an element, even there are more than one.
 248                 firstchild = element[0].firstChild
 249
 250                 # Get the value of the child.
 251                 value = firstchild.nodeValue
 252
 253                 # Return the value.
 254                 return value
 255
 256
 257 class DDNSProviderAllInkl(DDNSProvider):
 258         handle    = "all-inkl.com"
 259         name      = "All-inkl.com"
 260         website   = "http://all-inkl.com/"
 261         protocols = ("ipv4",)
 262
 263         # There are only information provided by the vendor how to
 264         # perform an update on a FRITZ Box. Grab requried informations
 265         # from the net.
 266         # http://all-inkl.goetze.it/v01/ddns-mit-einfachen-mitteln/
 267
 268         url = "http://dyndns.kasserver.com"
 269
 270         def update(self):
 271                 # There is no additional data required so we directly can
 272                 # send our request.
 273                 response = self.send_request(self.url, username=self.username, password=self.password)
 274
 275                 # Get the full response message.
 276                 output = response.read()
 277
 278                 # Handle success messages.
 279                 if output.startswith("good") or output.startswith("nochg"):
 280                         return
 281
 282                 # If we got here, some other update error happened.
 283                 raise DDNSUpdateError
 284
 285
 286 class DDNSProviderBindNsupdate(DDNSProvider):
 287         handle  = "nsupdate"
 288         name    = "BIND nsupdate utility"
 289         website = "http://en.wikipedia.org/wiki/Nsupdate"
 290
 291         DEFAULT_TTL = 60
 292
 293         def update(self):
 294                 scriptlet = self.__make_scriptlet()
 295
 296                 # -v enables TCP hence we transfer keys and other data that may
 297                 # exceed the size of one packet.
 298                 # -t sets the timeout
 299                 command = ["nsupdate", "-v", "-t", "60"]
 300
 301                 p = subprocess.Popen(command, shell=True,
 302                         stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
 303                 )
 304                 stdout, stderr = p.communicate(scriptlet)
 305
 306                 if p.returncode == 0:
 307                         return
 308
 309                 raise DDNSError("nsupdate terminated with error code: %s\n  %s" % (p.returncode, stderr))
 310
 311         def __make_scriptlet(self):
 312                 scriptlet = []
 313
 314                 # Set a different server the update is sent to.
 315                 server = self.get("server", None)
 316                 if server:
 317                         scriptlet.append("server %s" % server)
 318
 319                 key = self.get("key", None)
 320                 if key:
 321                         secret = self.get("secret")
 322
 323                         scriptlet.append("key %s %s" % (key, secret))
 324
 325                 ttl = self.get("ttl", self.DEFAULT_TTL)
 326
 327                 # Perform an update for each supported protocol.
 328                 for rrtype, proto in (("AAAA", "ipv6"), ("A", "ipv4")):
 329                         address = self.get_address(proto)
 330                         if not address:
 331                                 continue
 332
 333                         scriptlet.append("update delete %s. %s" % (self.hostname, rrtype))
 334                         scriptlet.append("update add %s. %s %s %s" % \
 335                                 (self.hostname, ttl, rrtype, address))
 336
 337                 # Send the actions to the server.
 338                 scriptlet.append("send")
 339                 scriptlet.append("quit")
 340
 341                 logger.debug(_("Scriptlet:"))
 342                 for line in scriptlet:
 343                         # Masquerade the line with the secret key.
 344                         if line.startswith("key"):
 345                                 line = "key **** ****"
 346
 347                         logger.debug("  %s" % line)
 348
 349                 return "\n".join(scriptlet)
 350
 351
 352 class DDNSProviderDHS(DDNSProvider):
 353         handle    = "dhs.org"
 354         name      = "DHS International"
 355         website   = "http://dhs.org/"
 356         protocols = ("ipv4",)
 357
 358         # No information about the used update api provided on webpage,
 359         # grabed from source code of ez-ipudate.
 360
 361         url = "http://members.dhs.org/nic/hosts"
 362
 363         def update(self):
 364                 data = {
 365                         "domain"       : self.hostname,
 366                         "ip"           : self.get_address("ipv4"),
 367                         "hostcmd"      : "edit",
 368                         "hostcmdstage" : "2",
 369                         "type"         : "4",
 370                 }
 371
 372                 # Send update to the server.
 373                 response = self.send_request(self.url, username=self.username, password=self.password,
 374                         data=data)
 375
 376                 # Handle success messages.
 377                 if response.code == 200:
 378                         return
 379
 380                 # If we got here, some other update error happened.
 381                 raise DDNSUpdateError
 382
 383
 384 class DDNSProviderDNSpark(DDNSProvider):
 385         handle    = "dnspark.com"
 386         name      = "DNS Park"
 387         website   = "http://dnspark.com/"
 388         protocols = ("ipv4",)
 389
 390         # Informations to the used api can be found here:
 391         # https://dnspark.zendesk.com/entries/31229348-Dynamic-DNS-API-Documentation
 392
 393         url = "https://control.dnspark.com/api/dynamic/update.php"
 394
 395         def update(self):
 396                 data = {
 397                         "domain" : self.hostname,
 398                         "ip"     : self.get_address("ipv4"),
 399                 }
 400
 401                 # Send update to the server.
 402                 response = self.send_request(self.url, username=self.username, password=self.password,
 403                         data=data)
 404
 405                 # Get the full response message.
 406                 output = response.read()
 407
 408                 # Handle success messages.
 409                 if output.startswith("ok") or output.startswith("nochange"):
 410                         return
 411
 412                 # Handle error codes.
 413                 if output == "unauth":
 414                         raise DDNSAuthenticationError
 415                 elif output == "abuse":
 416                         raise DDNSAbuseError
 417                 elif output == "blocked":
 418                         raise DDNSBlockedError
 419                 elif output == "nofqdn":
 420                         raise DDNSRequestError(_("No valid FQDN was given."))
 421                 elif output == "nohost":
 422                         raise DDNSRequestError(_("Invalid hostname specified."))
 423                 elif output == "notdyn":
 424                         raise DDNSRequestError(_("Hostname not marked as a dynamic host."))
 425                 elif output == "invalid":
 426                         raise DDNSRequestError(_("Invalid IP address has been sent."))
 427
 428                 # If we got here, some other update error happened.
 429                 raise DDNSUpdateError
 430
 431
 432 class DDNSProviderDtDNS(DDNSProvider):
 433         handle    = "dtdns.com"
 434         name      = "DtDNS"
 435         website   = "http://dtdns.com/"
 436         protocols = ("ipv4",)
 437
 438         # Information about the format of the HTTPS request is to be found
 439         # http://www.dtdns.com/dtsite/updatespec
 440
 441         url = "https://www.dtdns.com/api/autodns.cfm"
 442
 443         def update(self):
 444                 data = {
 445                         "ip" : self.get_address("ipv4"),
 446                         "id" : self.hostname,
 447                         "pw" : self.password
 448                 }
 449
 450                 # Send update to the server.
 451                 response = self.send_request(self.url, data=data)
 452
 453                 # Get the full response message.
 454                 output = response.read()
 455
 456                 # Remove all leading and trailing whitespace.
 457                 output = output.strip()
 458
 459                 # Handle success messages.
 460                 if "now points to" in output:
 461                         return
 462
 463                 # Handle error codes.
 464                 if output == "No hostname to update was supplied.":
 465                         raise DDNSRequestError(_("No hostname specified."))
 466
 467                 elif output == "The hostname you supplied is not valid.":
 468                         raise DDNSRequestError(_("Invalid hostname specified."))
 469
 470                 elif output == "The password you supplied is not valid.":
 471                         raise DDNSAuthenticationError
 472
 473                 elif output == "Administration has disabled this account.":
 474                         raise DDNSRequestError(_("Account has been disabled."))
 475
 476                 elif output == "Illegal character in IP.":
 477                         raise DDNSRequestError(_("Invalid IP address has been sent."))
 478
 479                 elif output == "Too many failed requests.":
 480                         raise DDNSRequestError(_("Too many failed requests."))
 481
 482                 # If we got here, some other update error happened.
 483                 raise DDNSUpdateError
 484
 485
 486 class DDNSProviderDynDNS(DDNSProtocolDynDNS2, DDNSProvider):
 487         handle    = "dyndns.org"
 488         name      = "Dyn"
 489         website   = "http://dyn.com/dns/"
 490         protocols = ("ipv4",)
 491
 492         # Information about the format of the request is to be found
 493         # http://http://dyn.com/support/developers/api/perform-update/
 494         # http://dyn.com/support/developers/api/return-codes/
 495
 496         url = "https://members.dyndns.org/nic/update"
 497
 498
 499 class DDNSProviderDynU(DDNSProtocolDynDNS2, DDNSProvider):
 500         handle    = "dynu.com"
 501         name      = "Dynu"
 502         website   = "http://dynu.com/"
 503         protocols = ("ipv6", "ipv4",)
 504
 505         # Detailed information about the request and response codes
 506         # are available on the providers webpage.
 507         # http://dynu.com/Default.aspx?page=dnsapi
 508
 509         url = "https://api.dynu.com/nic/update"
 510
 511         def _prepare_request_data(self):
 512                 data = DDNSProviderDynDNS._prepare_request_data(self)
 513
 514                 # This one supports IPv6
 515                 data.update({
 516                         "myipv6"   : self.get_address("ipv6"),
 517                 })
 518
 519                 return data
 520
 521
 522 class DDNSProviderEasyDNS(DDNSProtocolDynDNS2, DDNSProvider):
 523         handle    = "easydns.com"
 524         name      = "EasyDNS"
 525         website   = "http://www.easydns.com/"
 526         protocols = ("ipv4",)
 527
 528         # There is only some basic documentation provided by the vendor,
 529         # also searching the web gain very poor results.
 530         # http://mediawiki.easydns.com/index.php/Dynamic_DNS
 531
 532         url = "http://api.cp.easydns.com/dyn/tomato.php"
 533
 534
 535 class DDNSProviderFreeDNSAfraidOrg(DDNSProvider):
 536         handle    = "freedns.afraid.org"
 537         name      = "freedns.afraid.org"
 538         website   = "http://freedns.afraid.org/"
 539
 540         # No information about the request or response could be found on the vendor
 541         # page. All used values have been collected by testing.
 542         url = "https://freedns.afraid.org/dynamic/update.php"
 543
 544         @property
 545         def proto(self):
 546                 return self.get("proto")
 547
 548         def update(self):
 549                 address = self.get_address(self.proto)
 550
 551                 data = {
 552                         "address" : address,
 553                 }
 554
 555                 # Add auth token to the update url.
 556                 url = "%s?%s" % (self.url, self.token)
 557
 558                 # Send update to the server.
 559                 response = self.send_request(url, data=data)
 560
 561                 if output.startswith("Updated") or "has not changed" in output:
 562                         return
 563
 564                 # Handle error codes.
 565                 if output == "ERROR: Unable to locate this record":
 566                         raise DDNSAuthenticationError
 567                 elif "is an invalid IP address" in output:
 568                         raise DDNSRequestError(_("Invalid IP address has been sent."))
 569
 570                 # If we got here, some other update error happened.
 571                 raise DDNSUpdateError
 572
 573
 574 class DDNSProviderLightningWireLabs(DDNSProvider):
 575         handle    = "dns.lightningwirelabs.com"
 576         name      = "Lightning Wire Labs DNS Service"
 577         website   = "http://dns.lightningwirelabs.com/"
 578
 579         # Information about the format of the HTTPS request is to be found
 580         # https://dns.lightningwirelabs.com/knowledge-base/api/ddns
 581
 582         url = "https://dns.lightningwirelabs.com/update"
 583
 584         def update(self):
 585                 data =  {
 586                         "hostname" : self.hostname,
 587                         "address6" : self.get_address("ipv6", "-"),
 588                         "address4" : self.get_address("ipv4", "-"),
 589                 }
 590
 591                 # Check if a token has been set.
 592                 if self.token:
 593                         data["token"] = self.token
 594
 595                 # Check for username and password.
 596                 elif self.username and self.password:
 597                         data.update({
 598                                 "username" : self.username,
 599                                 "password" : self.password,
 600                         })
 601
 602                 # Raise an error if no auth details are given.
 603                 else:
 604                         raise DDNSConfigurationError
 605
 606                 # Send update to the server.
 607                 response = self.send_request(self.url, data=data)
 608
 609                 # Handle success messages.
 610                 if response.code == 200:
 611                         return
 612
 613                 # If we got here, some other update error happened.
 614                 raise DDNSUpdateError
 615
 616
 617 class DDNSProviderNamecheap(DDNSResponseParserXML, DDNSProvider):
 618         handle    = "namecheap.com"
 619         name      = "Namecheap"
 620         website   = "http://namecheap.com"
 621         protocols = ("ipv4",)
 622
 623         # Information about the format of the HTTP request is to be found
 624         # https://www.namecheap.com/support/knowledgebase/article.aspx/9249/0/nc-dynamic-dns-to-dyndns-adapter
 625         # https://community.namecheap.com/forums/viewtopic.php?f=6&t=6772
 626
 627         url = "https://dynamicdns.park-your-domain.com/update"
 628
 629         def update(self):
 630                 # Namecheap requires the hostname splitted into a host and domain part.
 631                 host, domain = self.hostname.split(".", 1)
 632
 633                 data = {
 634                         "ip"       : self.get_address("ipv4"),
 635                         "password" : self.password,
 636                         "host"     : host,
 637                         "domain"   : domain
 638                 }
 639
 640                 # Send update to the server.
 641                 response = self.send_request(self.url, data=data)
 642
 643                 # Get the full response message.
 644                 output = response.read()
 645
 646                 # Handle success messages.
 647                 if self.get_xml_tag_value(output, "IP") == self.get_address("ipv4"):
 648                         return
 649
 650                 # Handle error codes.
 651                 errorcode = self.get_xml_tag_value(output, "ResponseNumber")
 652
 653                 if errorcode == "304156":
 654                         raise DDNSAuthenticationError
 655                 elif errorcode == "316153":
 656                         raise DDNSRequestError(_("Domain not found."))
 657                 elif errorcode == "316154":
 658                         raise DDNSRequestError(_("Domain not active."))
 659                 elif errorcode in ("380098", "380099"):
 660                         raise DDNSInternalServerError
 661
 662                 # If we got here, some other update error happened.
 663                 raise DDNSUpdateError
 664
 665
 666 class DDNSProviderNOIP(DDNSProtocolDynDNS2, DDNSProvider):
 667         handle    = "no-ip.com"
 668         name      = "No-IP"
 669         website   = "http://www.no-ip.com/"
 670         protocols = ("ipv4",)
 671
 672         # Information about the format of the HTTP request is to be found
 673         # here: http://www.no-ip.com/integrate/request and
 674         # here: http://www.no-ip.com/integrate/response
 675
 676         url = "http://dynupdate.no-ip.com/nic/update"
 677
 678         def _prepare_request_data(self):
 679                 data = {
 680                         "hostname" : self.hostname,
 681                         "address"  : self.get_address("ipv4"),
 682                 }
 683
 684                 return data
 685
 686
 687 class DDNSProviderOVH(DDNSProtocolDynDNS2, DDNSProvider):
 688         handle    = "ovh.com"
 689         name      = "OVH"
 690         website   = "http://www.ovh.com/"
 691         protocols = ("ipv4",)
 692
 693         # OVH only provides very limited information about how to
 694         # update a DynDNS host. They only provide the update url
 695         # on the their german subpage.
 696         #
 697         # http://hilfe.ovh.de/DomainDynHost
 698
 699         url = "https://www.ovh.com/nic/update"
 700
 701         def _prepare_request_data(self):
 702                 data = DDNSProtocolDynDNS2._prepare_request_data(self)
 703                 data.update({
 704                         "system" : "dyndns",
 705                 })
 706
 707                 return data
 708
 709
 710 class DDNSProviderRegfish(DDNSProvider):
 711         handle  = "regfish.com"
 712         name    = "Regfish GmbH"
 713         website = "http://www.regfish.com/"
 714
 715         # A full documentation to the providers api can be found here
 716         # but is only available in german.
 717         # https://www.regfish.de/domains/dyndns/dokumentation
 718
 719         url = "https://dyndns.regfish.de/"
 720
 721         def update(self):
 722                 data = {
 723                         "fqdn" : self.hostname,
 724                 }
 725
 726                 # Check if we update an IPv6 address.
 727                 address6 = self.get_address("ipv6")
 728                 if address6:
 729                         data["ipv6"] = address6
 730
 731                 # Check if we update an IPv4 address.
 732                 address4 = self.get_address("ipv4")
 733                 if address4:
 734                         data["ipv4"] = address4
 735
 736                 # Raise an error if none address is given.
 737                 if not data.has_key("ipv6") and not data.has_key("ipv4"):
 738                         raise DDNSConfigurationError
 739
 740                 # Check if a token has been set.
 741                 if self.token:
 742                         data["token"] = self.token
 743
 744                 # Raise an error if no token and no useranem and password
 745                 # are given.
 746                 elif not self.username and not self.password:
 747                         raise DDNSConfigurationError(_("No Auth details specified."))
 748
 749                 # HTTP Basic Auth is only allowed if no token is used.
 750                 if self.token:
 751                         # Send update to the server.
 752                         response = self.send_request(self.url, data=data)
 753                 else:
 754                         # Send update to the server.
 755                         response = self.send_request(self.url, username=self.username, password=self.password,
 756                                 data=data)
 757
 758                 # Get the full response message.
 759                 output = response.read()
 760
 761                 # Handle success messages.
 762                 if "100" in output or "101" in output:
 763                         return
 764
 765                 # Handle error codes.
 766                 if "401" or "402" in output:
 767                         raise DDNSAuthenticationError
 768                 elif "408" in output:
 769                         raise DDNSRequestError(_("Invalid IPv4 address has been sent."))
 770                 elif "409" in output:
 771                         raise DDNSRequestError(_("Invalid IPv6 address has been sent."))
 772                 elif "412" in output:
 773                         raise DDNSRequestError(_("No valid FQDN was given."))
 774                 elif "414" in output:
 775                         raise DDNSInternalServerError
 776
 777                 # If we got here, some other update error happened.
 778                 raise DDNSUpdateError
 779
 780
 781 class DDNSProviderSelfhost(DDNSProtocolDynDNS2, DDNSProvider):
 782         handle    = "selfhost.de"
 783         name      = "Selfhost.de"
 784         website   = "http://www.selfhost.de/"
 785         protocols = ("ipv4",)
 786
 787         url = "https://carol.selfhost.de/nic/update"
 788
 789         def _prepare_request_data(self):
 790                 data = DDNSProviderDynDNS._prepare_request_data(self)
 791                 data.update({
 792                         "hostname" : "1",
 793                 })
 794
 795                 return data
 796
 797
 798 class DDNSProviderSPDNS(DDNSProtocolDynDNS2, DDNSProvider):
 799         handle    = "spdns.org"
 800         name      = "SPDNS"
 801         website   = "http://spdns.org/"
 802         protocols = ("ipv4",)
 803
 804         # Detailed information about request and response codes are provided
 805         # by the vendor. They are using almost the same mechanism and status
 806         # codes as dyndns.org so we can inherit all those stuff.
 807         #
 808         # http://wiki.securepoint.de/index.php/SPDNS_FAQ
 809         # http://wiki.securepoint.de/index.php/SPDNS_Update-Tokens
 810
 811         url = "https://update.spdns.de/nic/update"
 812
 813
 814 class DDNSProviderStrato(DDNSProtocolDynDNS2, DDNSProvider):
 815         handle    = "strato.com"
 816         name      = "Strato AG"
 817         website   = "http:/www.strato.com/"
 818         protocols = ("ipv4",)
 819
 820         # Information about the request and response can be obtained here:
 821         # http://www.strato-faq.de/article/671/So-einfach-richten-Sie-DynDNS-f%C3%BCr-Ihre-Domains-ein.html
 822
 823         url = "https://dyndns.strato.com/nic/update"
 824
 825
 826 class DDNSProviderTwoDNS(DDNSProtocolDynDNS2, DDNSProvider):
 827         handle    = "twodns.de"
 828         name      = "TwoDNS"
 829         website   = "http://www.twodns.de"
 830         protocols = ("ipv4",)
 831
 832         # Detailed information about the request can be found here
 833         # http://twodns.de/en/faqs
 834         # http://twodns.de/en/api
 835
 836         url = "https://update.twodns.de/update"
 837
 838         def _prepare_request_data(self):
 839                 data = {
 840                         "ip" : self.get_address("ipv4"),
 841                         "hostname" : self.hostname
 842                 }
 843
 844                 return data
 845
 846
 847 class DDNSProviderUdmedia(DDNSProtocolDynDNS2, DDNSProvider):
 848         handle    = "udmedia.de"
 849         name      = "Udmedia GmbH"
 850         website   = "http://www.udmedia.de"
 851         protocols = ("ipv4",)
 852
 853         # Information about the request can be found here
 854         # http://www.udmedia.de/faq/content/47/288/de/wie-lege-ich-einen-dyndns_eintrag-an.html
 855
 856         url = "https://www.udmedia.de/nic/update"
 857
 858
 859 class DDNSProviderVariomedia(DDNSProtocolDynDNS2, DDNSProvider):
 860         handle    = "variomedia.de"
 861         name      = "Variomedia"
 862         website   = "http://www.variomedia.de/"
 863         protocols = ("ipv6", "ipv4",)
 864
 865         # Detailed information about the request can be found here
 866         # https://dyndns.variomedia.de/
 867
 868         url = "https://dyndns.variomedia.de/nic/update"
 869
 870         @property
 871         def proto(self):
 872                 return self.get("proto")
 873
 874         def _prepare_request_data(self):
 875                 data = {
 876                         "hostname" : self.hostname,
 877                         "myip"     : self.get_address(self.proto)
 878                 }
 879
 880                 return data
 881
 882
 883 class DDNSProviderZoneedit(DDNSProtocolDynDNS2, DDNSProvider):
 884         handle    = "zoneedit.com"
 885         name      = "Zoneedit"
 886         website   = "http://www.zoneedit.com"
 887         protocols = ("ipv4",)
 888
 889         # Detailed information about the request and the response codes can be
 890         # obtained here:
 891         # http://www.zoneedit.com/doc/api/other.html
 892         # http://www.zoneedit.com/faq.html
 893
 894         url = "https://dynamic.zoneedit.com/auth/dynamic.html"
 895
 896         @property
 897         def proto(self):
 898                 return self.get("proto")
 899
 900         def update(self):
 901                 data = {
 902                         "dnsto" : self.get_address(self.proto),
 903                         "host"  : self.hostname
 904                 }
 905
 906                 # Send update to the server.
 907                 response = self.send_request(self.url, username=self.username, password=self.password,
 908                         data=data)
 909
 910                 # Get the full response message.
 911                 output = response.read()
 912
 913                 # Handle success messages.
 914                 if output.startswith("<SUCCESS"):
 915                         return
 916
 917                 # Handle error codes.
 918                 if output.startswith("invalid login"):
 919                         raise DDNSAuthenticationError
 920                 elif output.startswith("<ERROR CODE=\"704\""):
 921                         raise DDNSRequestError(_("No valid FQDN was given."))
 922                 elif output.startswith("<ERROR CODE=\"702\""):
 923                         raise DDNSInternalServerError
 924
 925                 # If we got here, some other update error happened.
 926                 raise DDNSUpdateError