Add DtDNS as new provider.

[ddns.git] / src / ddns / providers.py

diff --git a/src/ddns/providers.py b/src/ddns/providers.py
index f95aa2acb52159da023b5e6edb40491c9eddf4fa..2788c9722ae86aa1ac89d8aab32e72129e0a0209 100644 (file)
--- a/src/ddns/providers.py
+++ b/src/ddns/providers.py
@@ -19,9 +19,16 @@
 #                                                                             #
 ###############################################################################
 
+import logging
+
+from i18n import _
+
 # Import all possible exception types.
 from .errors import *
 
+logger = logging.getLogger("ddns.providers")
+logger.propagate = 1
+
 class DDNSProvider(object):
        INFO = {
                # A short string that uniquely identifies
@@ -104,12 +111,41 @@ class DDNSProvider(object):
                """
                return self.get("password")
 
-       def __call__(self):
+       @property
+       def protocols(self):
+               return self.INFO.get("protocols")
+
+       def __call__(self, force=False):
+               if force:
+                       logger.info(_("Updating %s forced") % self.hostname)
+
+               # Check if we actually need to update this host.
+               elif self.is_uptodate(self.protocols):
+                       logger.info(_("%s is already up to date") % self.hostname)
+                       return
+
+               # Execute the update.
                self.update()
 
        def update(self):
                raise NotImplementedError
 
+       def is_uptodate(self, protos):
+               """
+                       Returns True if this host is already up to date
+                       and does not need to change the IP address on the
+                       name server.
+               """
+               for proto in protos:
+                       addresses = self.core.system.resolve(self.hostname, proto)
+
+                       current_address = self.get_address(proto)
+
+                       if not current_address in addresses:
+                               return False
+
+               return True
+
        def send_request(self, *args, **kwargs):
                """
                        Proxy connection to the send request
@@ -159,7 +195,7 @@ class DDNSProviderDHS(DDNSProvider):
                        return
 
                # Handle error codes.
-               elif response.code == "401":
+               elif response.code == 401:
                        raise DDNSAuthenticationError
 
                # If we got here, some other update error happened.
@@ -219,7 +255,63 @@ class DDNSProviderDNSpark(DDNSProvider):
                # If we got here, some other update error happened.
                raise DDNSUpdateError
 
-               
+
+class DDNSProviderDtDNS(DDNSProvider):
+       INFO = {
+               "handle"    : "dtdns.com",
+               "name"      : "DtDNS",
+               "website"   : "http://dtdns.com/",
+               "protocols" : ["ipv4",]
+               }
+
+       # Information about the format of the HTTPS request is to be found
+       # http://www.dtdns.com/dtsite/updatespec
+       url = "https://www.dtdns.com/api/autodns.cfm"
+
+
+       def update(self):
+               data = {
+                       "ip" : self.get_address("ipv4"),
+                       "id" : self.hostname,
+                       "pw" : self.password
+               }
+
+               # Send update to the server.
+               response = self.send_request(self.url, data=data)
+
+               # Get the full response message.
+               output = response.read()
+
+               # Remove all leading and trailing whitespace.
+               output = output.strip()
+
+               # Handle success messages.
+               if "now points to" in output:
+                       return
+
+               # Handle error codes.
+               if output == "No hostname to update was supplied.":
+                       raise DDNSRequestError(_("No hostname specified."))
+
+               elif output == "The hostname you supplied is not valid.":
+                       raise DDNSRequestError(_("Invalid hostname specified."))
+
+               elif output == "The password you supplied is not valid.":
+                       raise DDNSAuthenticationError
+
+               elif output == "Administration has disabled this account.":
+                       raise DDNSRequestError(_("Account has been disabled."))
+
+               elif output == "Illegal character in IP.":
+                       raise DDNSRequestError(_("Invalid IP address has been sent."))
+
+               elif output == "Too many failed requests.":
+                       raise DDNSRequestError(_("Too many failed requests."))
+
+               # If we got here, some other update error happened.
+               raise DDNSUpdateError
+
+
 class DDNSProviderLightningWireLabs(DDNSProvider):
        INFO = {
                "handle"    : "dns.lightningwirelabs.com",
@@ -281,9 +373,9 @@ class DDNSProviderLightningWireLabs(DDNSProvider):
                        return
 
                # Handle error codes.
-               if response.code == "403":
+               if response.code == 403:
                        raise DDNSAuthenticationError
-               elif response.code == "400":
+               elif response.code == 400:
                        raise DDNSRequestError
 
                # If we got here, some other update error happened.