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 datetime
  23 import logging
  24 import os
  25 import subprocess
  26 import urllib2
  27 import xml.dom.minidom
  28
  29 from i18n import _
  30
  31 # Import all possible exception types.
  32 from .errors import *
  33
  34 logger = logging.getLogger("ddns.providers")
  35 logger.propagate = 1
  36
  37 _providers = {}
  38
  39 def get():
  40         """
  41                 Returns a dict with all automatically registered providers.
  42         """
  43         return _providers.copy()
  44
  45 class DDNSProvider(object):
  46         # A short string that uniquely identifies
  47         # this provider.
  48         handle = None
  49
  50         # The full name of the provider.
  51         name = None
  52
  53         # A weburl to the homepage of the provider.
  54         # (Where to register a new account?)
  55         website = None
  56
  57         # A list of supported protocols.
  58         protocols = ("ipv6", "ipv4")
  59
  60         DEFAULT_SETTINGS = {}
  61
  62         # holdoff time - Number of days no update is performed unless
  63         # the IP address has changed.
  64         holdoff_days = 30
  65
  66         # holdoff time for update failures - Number of days no update
  67         # is tried after the last one has failed.
  68         holdoff_failure_days = 0.5
  69
  70         # True if the provider is able to remove records, too.
  71         # Required to remove AAAA records if IPv6 is absent again.
  72         can_remove_records = True
  73
  74         # Automatically register all providers.
  75         class __metaclass__(type):
  76                 def __init__(provider, name, bases, dict):
  77                         type.__init__(provider, name, bases, dict)
  78
  79                         # The main class from which is inherited is not registered
  80                         # as a provider.
  81                         if name == "DDNSProvider":
  82                                 return
  83
  84                         if not all((provider.handle, provider.name, provider.website)):
  85                                 raise DDNSError(_("Provider is not properly configured"))
  86
  87                         assert not _providers.has_key(provider.handle), \
  88                                 "Provider '%s' has already been registered" % provider.handle
  89
  90                         _providers[provider.handle] = provider
  91
  92         @staticmethod
  93         def supported():
  94                 """
  95                         Should be overwritten to check if the system the code is running
  96                         on has all the required tools to support this provider.
  97                 """
  98                 return True
  99
 100         def __init__(self, core, **settings):
 101                 self.core = core
 102
 103                 # Copy a set of default settings and
 104                 # update them by those from the configuration file.
 105                 self.settings = self.DEFAULT_SETTINGS.copy()
 106                 self.settings.update(settings)
 107
 108         def __repr__(self):
 109                 return "<DDNS Provider %s (%s)>" % (self.name, self.handle)
 110
 111         def __cmp__(self, other):
 112                 return cmp(self.hostname, other.hostname)
 113
 114         @property
 115         def db(self):
 116                 return self.core.db
 117
 118         def get(self, key, default=None):
 119                 """
 120                         Get a setting from the settings dictionary.
 121                 """
 122                 return self.settings.get(key, default)
 123
 124         @property
 125         def hostname(self):
 126                 """
 127                         Fast access to the hostname.
 128                 """
 129                 return self.get("hostname")
 130
 131         @property
 132         def username(self):
 133                 """
 134                         Fast access to the username.
 135                 """
 136                 return self.get("username")
 137
 138         @property
 139         def password(self):
 140                 """
 141                         Fast access to the password.
 142                 """
 143                 return self.get("password")
 144
 145         @property
 146         def token(self):
 147                 """
 148                         Fast access to the token.
 149                 """
 150                 return self.get("token")
 151
 152         def __call__(self, force=False):
 153                 if force:
 154                         logger.debug(_("Updating %s forced") % self.hostname)
 155
 156                 # Do nothing if the last update has failed or no update is required
 157                 elif self.has_failure or not self.requires_update:
 158                         return
 159
 160                 # Execute the update.
 161                 try:
 162                         self.update()
 163
 164                 # 1) Catch network errors early, because we do not want to log
 165                 # them to the database. They are usually temporary and caused
 166                 # by the client side, so that we will retry quickly.
 167                 # 2) If there is an internet server error (HTTP code 500) on the
 168                 # provider's site, we will not log a failure and try again
 169                 # shortly.
 170                 except (DDNSNetworkError, DDNSInternalServerError):
 171                         raise
 172
 173                 # In case of any errors, log the failed request and
 174                 # raise the exception.
 175                 except DDNSError as e:
 176                         self.core.db.log_failure(self.hostname, e)
 177                         raise
 178
 179                 logger.info(_("Dynamic DNS update for %(hostname)s (%(provider)s) successful") % \
 180                         { "hostname" : self.hostname, "provider" : self.name })
 181                 self.core.db.log_success(self.hostname)
 182
 183         def update(self):
 184                 for protocol in self.protocols:
 185                         if self.have_address(protocol):
 186                                 self.update_protocol(protocol)
 187                         elif self.can_remove_records:
 188                                 self.remove_protocol(protocol)
 189
 190         def update_protocol(self, proto):
 191                 raise NotImplementedError
 192
 193         def remove_protocol(self, proto):
 194                 if not self.can_remove_records:
 195                         raise RuntimeError, "can_remove_records is enabled, but remove_protocol() not implemented"
 196
 197                 raise NotImplementedError
 198
 199         @property
 200         def requires_update(self):
 201                 # If the IP addresses have changed, an update is required
 202                 if self.ip_address_changed(self.protocols):
 203                         logger.debug(_("An update for %(hostname)s (%(provider)s)"
 204                                 " is performed because of an IP address change") % \
 205                                 { "hostname" : self.hostname, "provider" : self.name })
 206
 207                         return True
 208
 209                 # If the holdoff time has expired, an update is required, too
 210                 if self.holdoff_time_expired():
 211                         logger.debug(_("An update for %(hostname)s (%(provider)s)"
 212                                 " is performed because the holdoff time has expired") % \
 213                                 { "hostname" : self.hostname, "provider" : self.name })
 214
 215                         return True
 216
 217                 # Otherwise, we don't need to perform an update
 218                 logger.debug(_("No update required for %(hostname)s (%(provider)s)") % \
 219                         { "hostname" : self.hostname, "provider" : self.name })
 220
 221                 return False
 222
 223         @property
 224         def has_failure(self):
 225                 """
 226                         Returns True when the last update has failed and no retry
 227                         should be performed, yet.
 228                 """
 229                 last_status = self.db.last_update_status(self.hostname)
 230
 231                 # Return False if the last update has not failed.
 232                 if not last_status == "failure":
 233                         return False
 234
 235                 # If there is no holdoff time, we won't update ever again.
 236                 if self.holdoff_failure_days is None:
 237                         logger.warning(_("An update has not been performed because earlier updates failed for %s") \
 238                                 % self.hostname)
 239                         logger.warning(_("There will be no retries"))
 240
 241                         return True
 242
 243                 # Determine when the holdoff time ends
 244                 last_update = self.db.last_update(self.hostname, status=last_status)
 245                 holdoff_end = last_update + datetime.timedelta(days=self.holdoff_failure_days)
 246
 247                 now = datetime.datetime.utcnow()
 248                 if now < holdoff_end:
 249                         failure_message = self.db.last_update_failure_message(self.hostname)
 250
 251                         logger.warning(_("An update has not been performed because earlier updates failed for %s") \
 252                                 % self.hostname)
 253
 254                         if failure_message:
 255                                 logger.warning(_("Last failure message:"))
 256
 257                                 for line in failure_message.splitlines():
 258                                         logger.warning("  %s" % line)
 259
 260                         logger.warning(_("Further updates will be withheld until %s") % holdoff_end)
 261
 262                         return True
 263
 264                 return False
 265
 266         def ip_address_changed(self, protos):
 267                 """
 268                         Returns True if this host is already up to date
 269                         and does not need to change the IP address on the
 270                         name server.
 271                 """
 272                 for proto in protos:
 273                         addresses = self.core.system.resolve(self.hostname, proto)
 274                         current_address = self.get_address(proto)
 275
 276                         # Handle if the system has not got any IP address from a protocol
 277                         # (i.e. had full dual-stack connectivity which it has not any more)
 278                         if current_address is None:
 279                                 # If addresses still exists in the DNS system and if this provider
 280                                 # is able to remove records, we will do that.
 281                                 if addresses and self.can_remove_records:
 282                                         return True
 283
 284                                 # Otherwise, we cannot go on...
 285                                 continue
 286
 287                         if not current_address in addresses:
 288                                 return True
 289
 290                 return False
 291
 292         def holdoff_time_expired(self):
 293                 """
 294                         Returns true if the holdoff time has expired
 295                         and the host requires an update
 296                 """
 297                 # If no holdoff days is defined, we cannot go on
 298                 if not self.holdoff_days:
 299                         return False
 300
 301                 # Get the timestamp of the last successfull update
 302                 last_update = self.db.last_update(self.hostname, status="success")
 303
 304                 # If no timestamp has been recorded, no update has been
 305                 # performed. An update should be performed now.
 306                 if not last_update:
 307                         return True
 308
 309                 # Determine when the holdoff time ends
 310                 holdoff_end = last_update + datetime.timedelta(days=self.holdoff_days)
 311
 312                 now = datetime.datetime.utcnow()
 313
 314                 if now >= holdoff_end:
 315                         logger.debug("The holdoff time has expired for %s" % self.hostname)
 316                         return True
 317                 else:
 318                         logger.debug("Updates for %s are held off until %s" % \
 319                                 (self.hostname, holdoff_end))
 320                         return False
 321
 322         def send_request(self, *args, **kwargs):
 323                 """
 324                         Proxy connection to the send request
 325                         method.
 326                 """
 327                 return self.core.system.send_request(*args, **kwargs)
 328
 329         def get_address(self, proto, default=None):
 330                 """
 331                         Proxy method to get the current IP address.
 332                 """
 333                 return self.core.system.get_address(proto) or default
 334
 335         def have_address(self, proto):
 336                 """
 337                         Returns True if an IP address for the given protocol
 338                         is known and usable.
 339                 """
 340                 address = self.get_address(proto)
 341
 342                 if address:
 343                         return True
 344
 345                 return False
 346
 347
 348 class DDNSProtocolDynDNS2(object):
 349         """
 350                 This is an abstract class that implements the DynDNS updater
 351                 protocol version 2. As this is a popular way to update dynamic
 352                 DNS records, this class is supposed make the provider classes
 353                 shorter and simpler.
 354         """
 355
 356         # Information about the format of the request is to be found
 357         # http://dyn.com/support/developers/api/perform-update/
 358         # http://dyn.com/support/developers/api/return-codes/
 359
 360         # The DynDNS protocol version 2 does not allow to remove records
 361         can_remove_records = False
 362
 363         def prepare_request_data(self, proto):
 364                 data = {
 365                         "hostname" : self.hostname,
 366                         "myip"     : self.get_address(proto),
 367                 }
 368
 369                 return data
 370
 371         def update_protocol(self, proto):
 372                 data = self.prepare_request_data(proto)
 373
 374                 return self.send_request(data)
 375
 376         def send_request(self, data):
 377                 # Send update to the server.
 378                 response = DDNSProvider.send_request(self, self.url, data=data,
 379                         username=self.username, password=self.password)
 380
 381                 # Get the full response message.
 382                 output = response.read()
 383
 384                 # Handle success messages.
 385                 if output.startswith("good") or output.startswith("nochg"):
 386                         return
 387
 388                 # Handle error codes.
 389                 if output == "badauth":
 390                         raise DDNSAuthenticationError
 391                 elif output == "abuse":
 392                         raise DDNSAbuseError
 393                 elif output == "notfqdn":
 394                         raise DDNSRequestError(_("No valid FQDN was given"))
 395                 elif output == "nohost":
 396                         raise DDNSRequestError(_("Specified host does not exist"))
 397                 elif output == "911":
 398                         raise DDNSInternalServerError
 399                 elif output == "dnserr":
 400                         raise DDNSInternalServerError(_("DNS error encountered"))
 401                 elif output == "badagent":
 402                         raise DDNSBlockedError
 403
 404                 # If we got here, some other update error happened.
 405                 raise DDNSUpdateError(_("Server response: %s") % output)
 406
 407
 408 class DDNSResponseParserXML(object):
 409         """
 410                 This class provides a parser for XML responses which
 411                 will be sent by various providers. This class uses the python
 412                 shipped XML minidom module to walk through the XML tree and return
 413                 a requested element.
 414         """
 415
 416         def get_xml_tag_value(self, document, content):
 417                 # Send input to the parser.
 418                 xmldoc = xml.dom.minidom.parseString(document)
 419
 420                 # Get XML elements by the given content.
 421                 element = xmldoc.getElementsByTagName(content)
 422
 423                 # If no element has been found, we directly can return None.
 424                 if not element:
 425                         return None
 426
 427                 # Only get the first child from an element, even there are more than one.
 428                 firstchild = element[0].firstChild
 429
 430                 # Get the value of the child.
 431                 value = firstchild.nodeValue
 432
 433                 # Return the value.
 434                 return value
 435
 436
 437 class DDNSProviderAllInkl(DDNSProvider):
 438         handle    = "all-inkl.com"
 439         name      = "All-inkl.com"
 440         website   = "http://all-inkl.com/"
 441         protocols = ("ipv4",)
 442
 443         # There are only information provided by the vendor how to
 444         # perform an update on a FRITZ Box. Grab requried informations
 445         # from the net.
 446         # http://all-inkl.goetze.it/v01/ddns-mit-einfachen-mitteln/
 447
 448         url = "http://dyndns.kasserver.com"
 449         can_remove_records = False
 450
 451         def update(self):
 452                 # There is no additional data required so we directly can
 453                 # send our request.
 454                 response = self.send_request(self.url, username=self.username, password=self.password)
 455
 456                 # Get the full response message.
 457                 output = response.read()
 458
 459                 # Handle success messages.
 460                 if output.startswith("good") or output.startswith("nochg"):
 461                         return
 462
 463                 # If we got here, some other update error happened.
 464                 raise DDNSUpdateError
 465
 466
 467 class DDNSProviderBindNsupdate(DDNSProvider):
 468         handle  = "nsupdate"
 469         name    = "BIND nsupdate utility"
 470         website = "http://en.wikipedia.org/wiki/Nsupdate"
 471
 472         DEFAULT_TTL = 60
 473
 474         @staticmethod
 475         def supported():
 476                 # Search if the nsupdate utility is available
 477                 paths = os.environ.get("PATH")
 478
 479                 for path in paths.split(":"):
 480                         executable = os.path.join(path, "nsupdate")
 481
 482                         if os.path.exists(executable):
 483                                 return True
 484
 485                 return False
 486
 487         def update(self):
 488                 scriptlet = self.__make_scriptlet()
 489
 490                 # -v enables TCP hence we transfer keys and other data that may
 491                 # exceed the size of one packet.
 492                 # -t sets the timeout
 493                 command = ["nsupdate", "-v", "-t", "60"]
 494
 495                 p = subprocess.Popen(command, shell=True,
 496                         stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE,
 497                 )
 498                 stdout, stderr = p.communicate(scriptlet)
 499
 500                 if p.returncode == 0:
 501                         return
 502
 503                 raise DDNSError("nsupdate terminated with error code: %s\n  %s" % (p.returncode, stderr))
 504
 505         def __make_scriptlet(self):
 506                 scriptlet = []
 507
 508                 # Set a different server the update is sent to.
 509                 server = self.get("server", None)
 510                 if server:
 511                         scriptlet.append("server %s" % server)
 512
 513                 # Set the DNS zone the host should be added to.
 514                 zone = self.get("zone", None)
 515                 if zone:
 516                         scriptlet.append("zone %s" % zone)
 517
 518                 key = self.get("key", None)
 519                 if key:
 520                         secret = self.get("secret")
 521
 522                         scriptlet.append("key %s %s" % (key, secret))
 523
 524                 ttl = self.get("ttl", self.DEFAULT_TTL)
 525
 526                 # Perform an update for each supported protocol.
 527                 for rrtype, proto in (("AAAA", "ipv6"), ("A", "ipv4")):
 528                         address = self.get_address(proto)
 529                         if not address:
 530                                 continue
 531
 532                         scriptlet.append("update delete %s. %s" % (self.hostname, rrtype))
 533                         scriptlet.append("update add %s. %s %s %s" % \
 534                                 (self.hostname, ttl, rrtype, address))
 535
 536                 # Send the actions to the server.
 537                 scriptlet.append("send")
 538                 scriptlet.append("quit")
 539
 540                 logger.debug(_("Scriptlet:"))
 541                 for line in scriptlet:
 542                         # Masquerade the line with the secret key.
 543                         if line.startswith("key"):
 544                                 line = "key **** ****"
 545
 546                         logger.debug("  %s" % line)
 547
 548                 return "\n".join(scriptlet)
 549
 550
 551 class DDNSProviderChangeIP(DDNSProvider):
 552         handle    = "changeip.com"
 553         name      = "ChangeIP.com"
 554         website   = "https://changeip.com"
 555         protocols = ("ipv4",)
 556
 557         # Detailed information about the update api can be found here.
 558         # http://www.changeip.com/accounts/knowledgebase.php?action=displayarticle&id=34
 559
 560         url = "https://nic.changeip.com/nic/update"
 561         can_remove_records = False
 562
 563         def update_protocol(self, proto):
 564                 data = {
 565                         "hostname" : self.hostname,
 566                         "myip"     : self.get_address(proto),
 567                 }
 568
 569                 # Send update to the server.
 570                 try:
 571                         response = self.send_request(self.url, username=self.username, password=self.password,
 572                                 data=data)
 573
 574                 # Handle error codes.
 575                 except urllib2.HTTPError, e:
 576                         if e.code == 422:
 577                                 raise DDNSRequestError(_("Domain not found."))
 578
 579                         raise
 580
 581                 # Handle success message.
 582                 if response.code == 200:
 583                         return
 584
 585                 # If we got here, some other update error happened.
 586                 raise DDNSUpdateError(_("Server response: %s") % output)
 587
 588
 589 class DDNSProviderDesecIO(DDNSProtocolDynDNS2, DDNSProvider):
 590         handle    = "desec.io"
 591         name      = "desec.io"
 592         website   = "https://www.desec.io"
 593         protocols = ("ipv6", "ipv4",)
 594
 595         # ipv4 / ipv6 records are automatically removed when the update
 596         # request originates from the respectively other protocol and no
 597         # address is explicitly provided for the unused protocol.
 598
 599         url = "https://update.dedyn.io"
 600
 601         # desec.io sends the IPv6 and IPv4 address in one request
 602
 603         def update(self):
 604                 data = DDNSProtocolDynDNS2.prepare_request_data(self, "ipv4")
 605
 606                 # This one supports IPv6
 607                 myipv6 = self.get_address("ipv6")
 608
 609                 # Add update information if we have an IPv6 address.
 610                 if myipv6:
 611                         data["myipv6"] = myipv6
 612
 613                 self.send_request(data)
 614
 615
 616 class DDNSProviderDDNSS(DDNSProvider):
 617         handle    = "ddnss.de"
 618         name      = "DDNSS"
 619         website   = "http://www.ddnss.de"
 620         protocols = ("ipv4",)
 621
 622         # Detailed information about how to send the update request and possible response
 623         # codes can be obtained from here.
 624         # http://www.ddnss.de/info.php
 625         # http://www.megacomputing.de/2014/08/dyndns-service-response-time/#more-919
 626
 627         url = "http://www.ddnss.de/upd.php"
 628         can_remove_records = False
 629
 630         def update_protocol(self, proto):
 631                 data = {
 632                         "ip"   : self.get_address(proto),
 633                         "host" : self.hostname,
 634                 }
 635
 636                 # Check if a token has been set.
 637                 if self.token:
 638                         data["key"] = self.token
 639
 640                 # Check if username and hostname are given.
 641                 elif self.username and self.password:
 642                         data.update({
 643                                 "user" : self.username,
 644                                 "pwd"  : self.password,
 645                         })
 646
 647                 # Raise an error if no auth details are given.
 648                 else:
 649                         raise DDNSConfigurationError
 650
 651                 # Send update to the server.
 652                 response = self.send_request(self.url, data=data)
 653
 654                 # This provider sends the response code as part of the header.
 655                 header = response.info()
 656
 657                 # Get status information from the header.
 658                 output = header.getheader('ddnss-response')
 659
 660                 # Handle success messages.
 661                 if output == "good" or output == "nochg":
 662                         return
 663
 664                 # Handle error codes.
 665                 if output == "badauth":
 666                         raise DDNSAuthenticationError
 667                 elif output == "notfqdn":
 668                         raise DDNSRequestError(_("No valid FQDN was given"))
 669                 elif output == "nohost":
 670                         raise DDNSRequestError(_("Specified host does not exist"))
 671                 elif output == "911":
 672                         raise DDNSInternalServerError
 673                 elif output == "dnserr":
 674                         raise DDNSInternalServerError(_("DNS error encountered"))
 675                 elif output == "disabled":
 676                         raise DDNSRequestError(_("Account disabled or locked"))
 677
 678                 # If we got here, some other update error happened.
 679                 raise DDNSUpdateError
 680
 681
 682 class DDNSProviderDHS(DDNSProvider):
 683         handle    = "dhs.org"
 684         name      = "DHS International"
 685         website   = "http://dhs.org/"
 686         protocols = ("ipv4",)
 687
 688         # No information about the used update api provided on webpage,
 689         # grabed from source code of ez-ipudate.
 690
 691         url = "http://members.dhs.org/nic/hosts"
 692         can_remove_records = False
 693
 694         def update_protocol(self, proto):
 695                 data = {
 696                         "domain"       : self.hostname,
 697                         "ip"           : self.get_address(proto),
 698                         "hostcmd"      : "edit",
 699                         "hostcmdstage" : "2",
 700                         "type"         : "4",
 701                 }
 702
 703                 # Send update to the server.
 704                 response = self.send_request(self.url, username=self.username, password=self.password,
 705                         data=data)
 706
 707                 # Handle success messages.
 708                 if response.code == 200:
 709                         return
 710
 711                 # If we got here, some other update error happened.
 712                 raise DDNSUpdateError
 713
 714
 715 class DDNSProviderDNSpark(DDNSProvider):
 716         handle    = "dnspark.com"
 717         name      = "DNS Park"
 718         website   = "http://dnspark.com/"
 719         protocols = ("ipv4",)
 720
 721         # Informations to the used api can be found here:
 722         # https://dnspark.zendesk.com/entries/31229348-Dynamic-DNS-API-Documentation
 723
 724         url = "https://control.dnspark.com/api/dynamic/update.php"
 725         can_remove_records = False
 726
 727         def update_protocol(self, proto):
 728                 data = {
 729                         "domain" : self.hostname,
 730                         "ip"     : self.get_address(proto),
 731                 }
 732
 733                 # Send update to the server.
 734                 response = self.send_request(self.url, username=self.username, password=self.password,
 735                         data=data)
 736
 737                 # Get the full response message.
 738                 output = response.read()
 739
 740                 # Handle success messages.
 741                 if output.startswith("ok") or output.startswith("nochange"):
 742                         return
 743
 744                 # Handle error codes.
 745                 if output == "unauth":
 746                         raise DDNSAuthenticationError
 747                 elif output == "abuse":
 748                         raise DDNSAbuseError
 749                 elif output == "blocked":
 750                         raise DDNSBlockedError
 751                 elif output == "nofqdn":
 752                         raise DDNSRequestError(_("No valid FQDN was given"))
 753                 elif output == "nohost":
 754                         raise DDNSRequestError(_("Invalid hostname specified"))
 755                 elif output == "notdyn":
 756                         raise DDNSRequestError(_("Hostname not marked as a dynamic host"))
 757                 elif output == "invalid":
 758                         raise DDNSRequestError(_("Invalid IP address has been sent"))
 759
 760                 # If we got here, some other update error happened.
 761                 raise DDNSUpdateError
 762
 763
 764 class DDNSProviderDtDNS(DDNSProvider):
 765         handle    = "dtdns.com"
 766         name      = "DtDNS"
 767         website   = "http://dtdns.com/"
 768         protocols = ("ipv4",)
 769
 770         # Information about the format of the HTTPS request is to be found
 771         # http://www.dtdns.com/dtsite/updatespec
 772
 773         url = "https://www.dtdns.com/api/autodns.cfm"
 774         can_remove_records = False
 775
 776         def update_protocol(self, proto):
 777                 data = {
 778                         "ip" : self.get_address(proto),
 779                         "id" : self.hostname,
 780                         "pw" : self.password
 781                 }
 782
 783                 # Send update to the server.
 784                 response = self.send_request(self.url, data=data)
 785
 786                 # Get the full response message.
 787                 output = response.read()
 788
 789                 # Remove all leading and trailing whitespace.
 790                 output = output.strip()
 791
 792                 # Handle success messages.
 793                 if "now points to" in output:
 794                         return
 795
 796                 # Handle error codes.
 797                 if output == "No hostname to update was supplied.":
 798                         raise DDNSRequestError(_("No hostname specified"))
 799
 800                 elif output == "The hostname you supplied is not valid.":
 801                         raise DDNSRequestError(_("Invalid hostname specified"))
 802
 803                 elif output == "The password you supplied is not valid.":
 804                         raise DDNSAuthenticationError
 805
 806                 elif output == "Administration has disabled this account.":
 807                         raise DDNSRequestError(_("Account has been disabled"))
 808
 809                 elif output == "Illegal character in IP.":
 810                         raise DDNSRequestError(_("Invalid IP address has been sent"))
 811
 812                 elif output == "Too many failed requests.":
 813                         raise DDNSRequestError(_("Too many failed requests"))
 814
 815                 # If we got here, some other update error happened.
 816                 raise DDNSUpdateError
 817
 818
 819 class DDNSProviderDuckDNS(DDNSProtocolDynDNS2, DDNSProvider):
 820         handle    = "duckdns.org"
 821         name      = "Duck DNS"
 822         website   = "http://www.duckdns.org/"
 823         protocols = ("ipv4",)
 824
 825         # Information about the format of the request is to be found
 826         # https://www.duckdns.org/install.jsp
 827
 828         url = "https://www.duckdns.org/nic/update"
 829
 830
 831 class DDNSProviderDynDNS(DDNSProtocolDynDNS2, DDNSProvider):
 832         handle    = "dyndns.org"
 833         name      = "Dyn"
 834         website   = "http://dyn.com/dns/"
 835         protocols = ("ipv4",)
 836
 837         # Information about the format of the request is to be found
 838         # http://http://dyn.com/support/developers/api/perform-update/
 839         # http://dyn.com/support/developers/api/return-codes/
 840
 841         url = "https://members.dyndns.org/nic/update"
 842
 843
 844 class DDNSProviderDynU(DDNSProtocolDynDNS2, DDNSProvider):
 845         handle    = "dynu.com"
 846         name      = "Dynu"
 847         website   = "http://dynu.com/"
 848         protocols = ("ipv6", "ipv4",)
 849
 850         # Detailed information about the request and response codes
 851         # are available on the providers webpage.
 852         # http://dynu.com/Default.aspx?page=dnsapi
 853
 854         url = "https://api.dynu.com/nic/update"
 855
 856         # DynU sends the IPv6 and IPv4 address in one request
 857
 858         def update(self):
 859                 data = DDNSProtocolDynDNS2.prepare_request_data(self, "ipv4")
 860
 861                 # This one supports IPv6
 862                 myipv6 = self.get_address("ipv6")
 863
 864                 # Add update information if we have an IPv6 address.
 865                 if myipv6:
 866                         data["myipv6"] = myipv6
 867
 868                 self.send_request(data)
 869
 870
 871 class DDNSProviderEasyDNS(DDNSProvider):
 872         handle    = "easydns.com"
 873         name      = "EasyDNS"
 874         website   = "http://www.easydns.com/"
 875         protocols = ("ipv4",)
 876
 877         # Detailed information about the request and response codes
 878         # (API 1.3) are available on the providers webpage.
 879         # https://fusion.easydns.com/index.php?/Knowledgebase/Article/View/102/7/dynamic-dns
 880
 881         url = "http://api.cp.easydns.com/dyn/tomato.php"
 882
 883         def update_protocol(self, proto):
 884                 data = {
 885                         "myip"     : self.get_address(proto, "-"),
 886                         "hostname" : self.hostname,
 887                 }
 888
 889                 # Send update to the server.
 890                 response = self.send_request(self.url, data=data,
 891                         username=self.username, password=self.password)
 892
 893                 # Get the full response message.
 894                 output = response.read()
 895
 896                 # Remove all leading and trailing whitespace.
 897                 output = output.strip()
 898
 899                 # Handle success messages.
 900                 if output.startswith("NOERROR"):
 901                         return
 902
 903                 # Handle error codes.
 904                 if output.startswith("NOACCESS"):
 905                         raise DDNSAuthenticationError
 906
 907                 elif output.startswith("NOSERVICE"):
 908                         raise DDNSRequestError(_("Dynamic DNS is not turned on for this domain"))
 909
 910                 elif output.startswith("ILLEGAL INPUT"):
 911                         raise DDNSRequestError(_("Invalid data has been sent"))
 912
 913                 elif output.startswith("TOOSOON"):
 914                         raise DDNSRequestError(_("Too frequent update requests have been sent"))
 915
 916                 # If we got here, some other update error happened.
 917                 raise DDNSUpdateError
 918
 919
 920 class DDNSProviderDomopoli(DDNSProtocolDynDNS2, DDNSProvider):
 921         handle    = "domopoli.de"
 922         name      = "domopoli.de"
 923         website   = "http://domopoli.de/"
 924         protocols = ("ipv4",)
 925
 926         # https://www.domopoli.de/?page=howto#DynDns_start
 927
 928         url = "http://dyndns.domopoli.de/nic/update"
 929
 930
 931 class DDNSProviderDynsNet(DDNSProvider):
 932         handle    = "dyns.net"
 933         name      = "DyNS"
 934         website   = "http://www.dyns.net/"
 935         protocols = ("ipv4",)
 936         can_remove_records = False
 937
 938         # There is very detailed informatio about how to send the update request and
 939         # the possible response codes. (Currently we are using the v1.1 proto)
 940         # http://www.dyns.net/documentation/technical/protocol/
 941
 942         url = "http://www.dyns.net/postscript011.php"
 943
 944         def update_protocol(self, proto):
 945                 data = {
 946                         "ip"       : self.get_address(proto),
 947                         "host"     : self.hostname,
 948                         "username" : self.username,
 949                         "password" : self.password,
 950                 }
 951
 952                 # Send update to the server.
 953                 response = self.send_request(self.url, data=data)
 954
 955                 # Get the full response message.
 956                 output = response.read()
 957
 958                 # Handle success messages.
 959                 if output.startswith("200"):
 960                         return
 961
 962                 # Handle error codes.
 963                 if output.startswith("400"):
 964                         raise DDNSRequestError(_("Malformed request has been sent"))
 965                 elif output.startswith("401"):
 966                         raise DDNSAuthenticationError
 967                 elif output.startswith("402"):
 968                         raise DDNSRequestError(_("Too frequent update requests have been sent"))
 969                 elif output.startswith("403"):
 970                         raise DDNSInternalServerError
 971
 972                 # If we got here, some other update error happened.
 973                 raise DDNSUpdateError(_("Server response: %s") % output)
 974
 975
 976 class DDNSProviderEnomCom(DDNSResponseParserXML, DDNSProvider):
 977         handle    = "enom.com"
 978         name      = "eNom Inc."
 979         website   = "http://www.enom.com/"
 980         protocols = ("ipv4",)
 981
 982         # There are very detailed information about how to send an update request and
 983         # the respone codes.
 984         # http://www.enom.com/APICommandCatalog/
 985
 986         url = "https://dynamic.name-services.com/interface.asp"
 987         can_remove_records = False
 988
 989         def update_protocol(self, proto):
 990                 data = {
 991                         "command"        : "setdnshost",
 992                         "responsetype"   : "xml",
 993                         "address"        : self.get_address(proto),
 994                         "domainpassword" : self.password,
 995                         "zone"           : self.hostname
 996                 }
 997
 998                 # Send update to the server.
 999                 response = self.send_request(self.url, data=data)
1000
1001                 # Get the full response message.
1002                 output = response.read()
1003
1004                 # Handle success messages.
1005                 if self.get_xml_tag_value(output, "ErrCount") == "0":
1006                         return
1007
1008                 # Handle error codes.
1009                 errorcode = self.get_xml_tag_value(output, "ResponseNumber")
1010
1011                 if errorcode == "304155":
1012                         raise DDNSAuthenticationError
1013                 elif errorcode == "304153":
1014                         raise DDNSRequestError(_("Domain not found"))
1015
1016                 # If we got here, some other update error happened.
1017                 raise DDNSUpdateError
1018
1019
1020 class DDNSProviderEntryDNS(DDNSProvider):
1021         handle    = "entrydns.net"
1022         name      = "EntryDNS"
1023         website   = "http://entrydns.net/"
1024         protocols = ("ipv4",)
1025
1026         # Some very tiny details about their so called "Simple API" can be found
1027         # here: https://entrydns.net/help
1028         url = "https://entrydns.net/records/modify"
1029         can_remove_records = False
1030
1031         def update_protocol(self, proto):
1032                 data = {
1033                         "ip" : self.get_address(proto),
1034                 }
1035
1036                 # Add auth token to the update url.
1037                 url = "%s/%s" % (self.url, self.token)
1038
1039                 # Send update to the server.
1040                 try:
1041                         response = self.send_request(url, data=data)
1042
1043                 # Handle error codes
1044                 except urllib2.HTTPError, e:
1045                         if e.code == 404:
1046                                 raise DDNSAuthenticationError
1047
1048                         elif e.code == 422:
1049                                 raise DDNSRequestError(_("An invalid IP address was submitted"))
1050
1051                         raise
1052
1053                 # Handle success messages.
1054                 if response.code == 200:
1055                         return
1056
1057                 # If we got here, some other update error happened.
1058                 raise DDNSUpdateError
1059
1060
1061 class DDNSProviderFreeDNSAfraidOrg(DDNSProvider):
1062         handle    = "freedns.afraid.org"
1063         name      = "freedns.afraid.org"
1064         website   = "http://freedns.afraid.org/"
1065
1066         # No information about the request or response could be found on the vendor
1067         # page. All used values have been collected by testing.
1068         url = "https://freedns.afraid.org/dynamic/update.php"
1069         can_remove_records = False
1070
1071         def update_protocol(self, proto):
1072                 data = {
1073                         "address" : self.get_address(proto),
1074                 }
1075
1076                 # Add auth token to the update url.
1077                 url = "%s?%s" % (self.url, self.token)
1078
1079                 # Send update to the server.
1080                 response = self.send_request(url, data=data)
1081
1082                 # Get the full response message.
1083                 output = response.read()
1084
1085                 # Handle success messages.
1086                 if output.startswith("Updated") or "has not changed" in output:
1087                         return
1088
1089                 # Handle error codes.
1090                 if output == "ERROR: Unable to locate this record":
1091                         raise DDNSAuthenticationError
1092                 elif "is an invalid IP address" in output:
1093                         raise DDNSRequestError(_("Invalid IP address has been sent"))
1094
1095                 # If we got here, some other update error happened.
1096                 raise DDNSUpdateError
1097
1098
1099 class DDNSProviderJoker(DDNSProtocolDynDNS2, DDNSProvider):
1100                 handle  = "joker.com"
1101                 name    = "Joker.com Dynamic DNS"
1102                 website = "https://joker.com/"
1103                 protocols = ("ipv4",)
1104
1105                 # Information about the request can be found here:
1106                 # https://joker.com/faq/content/11/427/en/what-is-dynamic-dns-dyndns.html
1107                 # Using DynDNS V2 protocol over HTTPS here
1108
1109                 url = "https://svc.joker.com/nic/update"
1110
1111
1112 class DDNSProviderGoogle(DDNSProtocolDynDNS2, DDNSProvider):
1113         handle    = "domains.google.com"
1114         name      = "Google Domains"
1115         website   = "https://domains.google.com/"
1116         protocols = ("ipv4",)
1117
1118         # Information about the format of the HTTP request is to be found
1119         # here: https://support.google.com/domains/answer/6147083?hl=en
1120
1121         url = "https://domains.google.com/nic/update"
1122
1123
1124 class DDNSProviderLightningWireLabs(DDNSProvider):
1125         handle    = "dns.lightningwirelabs.com"
1126         name      = "Lightning Wire Labs DNS Service"
1127         website   = "http://dns.lightningwirelabs.com/"
1128
1129         # Information about the format of the HTTPS request is to be found
1130         # https://dns.lightningwirelabs.com/knowledge-base/api/ddns
1131
1132         url = "https://dns.lightningwirelabs.com/update"
1133
1134         def update(self):
1135                 data =  {
1136                         "hostname" : self.hostname,
1137                         "address6" : self.get_address("ipv6", "-"),
1138                         "address4" : self.get_address("ipv4", "-"),
1139                 }
1140
1141                 # Check if a token has been set.
1142                 if self.token:
1143                         data["token"] = self.token
1144
1145                 # Check for username and password.
1146                 elif self.username and self.password:
1147                         data.update({
1148                                 "username" : self.username,
1149                                 "password" : self.password,
1150                         })
1151
1152                 # Raise an error if no auth details are given.
1153                 else:
1154                         raise DDNSConfigurationError
1155
1156                 # Send update to the server.
1157                 response = self.send_request(self.url, data=data)
1158
1159                 # Handle success messages.
1160                 if response.code == 200:
1161                         return
1162
1163                 # If we got here, some other update error happened.
1164                 raise DDNSUpdateError
1165
1166
1167 class DDNSProviderLoopia(DDNSProtocolDynDNS2, DDNSProvider):
1168         handle    = "loopia.se"
1169         name      = "Loopia AB"
1170         website   = "https://www.loopia.com"
1171         protocols = ("ipv4",)
1172
1173         # Information about the format of the HTTP request is to be found
1174         # here: https://support.loopia.com/wiki/About_the_DynDNS_support
1175
1176         url = "https://dns.loopia.se/XDynDNSServer/XDynDNS.php"
1177
1178
1179 class DDNSProviderMyOnlinePortal(DDNSProtocolDynDNS2, DDNSProvider):
1180         handle    = "myonlineportal.net"
1181         name      = "myonlineportal.net"
1182         website   = "https:/myonlineportal.net/"
1183
1184         # Information about the request and response can be obtained here:
1185         # https://myonlineportal.net/howto_dyndns
1186
1187         url = "https://myonlineportal.net/updateddns"
1188
1189         def prepare_request_data(self, proto):
1190                 data = {
1191                         "hostname" : self.hostname,
1192                         "ip"     : self.get_address(proto),
1193                 }
1194
1195                 return data
1196
1197
1198 class DDNSProviderNamecheap(DDNSResponseParserXML, DDNSProvider):
1199         handle    = "namecheap.com"
1200         name      = "Namecheap"
1201         website   = "http://namecheap.com"
1202         protocols = ("ipv4",)
1203
1204         # Information about the format of the HTTP request is to be found
1205         # https://www.namecheap.com/support/knowledgebase/article.aspx/9249/0/nc-dynamic-dns-to-dyndns-adapter
1206         # https://community.namecheap.com/forums/viewtopic.php?f=6&t=6772
1207
1208         url = "https://dynamicdns.park-your-domain.com/update"
1209         can_remove_records = False
1210
1211         def update_protocol(self, proto):
1212                 # Namecheap requires the hostname splitted into a host and domain part.
1213                 host, domain = self.hostname.split(".", 1)
1214
1215                 # Get and store curent IP address.
1216                 address = self.get_address(proto)
1217
1218                 data = {
1219                         "ip"       : address,
1220                         "password" : self.password,
1221                         "host"     : host,
1222                         "domain"   : domain
1223                 }
1224
1225                 # Send update to the server.
1226                 response = self.send_request(self.url, data=data)
1227
1228                 # Get the full response message.
1229                 output = response.read()
1230
1231                 # Handle success messages.
1232                 if self.get_xml_tag_value(output, "IP") == address:
1233                         return
1234
1235                 # Handle error codes.
1236                 errorcode = self.get_xml_tag_value(output, "ResponseNumber")
1237
1238                 if errorcode == "304156":
1239                         raise DDNSAuthenticationError
1240                 elif errorcode == "316153":
1241                         raise DDNSRequestError(_("Domain not found"))
1242                 elif errorcode == "316154":
1243                         raise DDNSRequestError(_("Domain not active"))
1244                 elif errorcode in ("380098", "380099"):
1245                         raise DDNSInternalServerError
1246
1247                 # If we got here, some other update error happened.
1248                 raise DDNSUpdateError
1249
1250
1251 class DDNSProviderNOIP(DDNSProtocolDynDNS2, DDNSProvider):
1252         handle    = "no-ip.com"
1253         name      = "No-IP"
1254         website   = "http://www.no-ip.com/"
1255         protocols = ("ipv4",)
1256
1257         # Information about the format of the HTTP request is to be found
1258         # here: http://www.no-ip.com/integrate/request and
1259         # here: http://www.no-ip.com/integrate/response
1260
1261         url = "http://dynupdate.no-ip.com/nic/update"
1262
1263         def prepare_request_data(self, proto):
1264                 assert proto == "ipv4"
1265
1266                 data = {
1267                         "hostname" : self.hostname,
1268                         "address"  : self.get_address(proto),
1269                 }
1270
1271                 return data
1272
1273
1274 class DDNSProviderNsupdateINFO(DDNSProtocolDynDNS2, DDNSProvider):
1275         handle    = "nsupdate.info"
1276         name      = "nsupdate.info"
1277         website   = "http://nsupdate.info/"
1278         protocols = ("ipv6", "ipv4",)
1279
1280         # Information about the format of the HTTP request can be found
1281         # after login on the provider user interface and here:
1282         # http://nsupdateinfo.readthedocs.org/en/latest/user.html
1283
1284         url = "https://nsupdate.info/nic/update"
1285
1286         # TODO nsupdate.info can actually do this, but the functionality
1287         # has not been implemented here, yet.
1288         can_remove_records = False
1289
1290         # After a failed update, there will be no retries
1291         # https://bugzilla.ipfire.org/show_bug.cgi?id=10603
1292         holdoff_failure_days = None
1293
1294         # Nsupdate.info uses the hostname as user part for the HTTP basic auth,
1295         # and for the password a so called secret.
1296         @property
1297         def username(self):
1298                 return self.get("hostname")
1299
1300         @property
1301         def password(self):
1302                 return self.token or self.get("secret")
1303
1304         def prepare_request_data(self, proto):
1305                 data = {
1306                         "myip" : self.get_address(proto),
1307                 }
1308
1309                 return data
1310
1311
1312 class DDNSProviderOpenDNS(DDNSProtocolDynDNS2, DDNSProvider):
1313         handle    = "opendns.com"
1314         name      = "OpenDNS"
1315         website   = "http://www.opendns.com"
1316
1317         # Detailed information about the update request and possible
1318         # response codes can be obtained from here:
1319         # https://support.opendns.com/entries/23891440
1320
1321         url = "https://updates.opendns.com/nic/update"
1322
1323         def prepare_request_data(self, proto):
1324                 data = {
1325                         "hostname" : self.hostname,
1326                         "myip"     : self.get_address(proto),
1327                 }
1328
1329                 return data
1330
1331
1332 class DDNSProviderOVH(DDNSProtocolDynDNS2, DDNSProvider):
1333         handle    = "ovh.com"
1334         name      = "OVH"
1335         website   = "http://www.ovh.com/"
1336         protocols = ("ipv4",)
1337
1338         # OVH only provides very limited information about how to
1339         # update a DynDNS host. They only provide the update url
1340         # on the their german subpage.
1341         #
1342         # http://hilfe.ovh.de/DomainDynHost
1343
1344         url = "https://www.ovh.com/nic/update"
1345
1346         def prepare_request_data(self, proto):
1347                 data = DDNSProtocolDynDNS2.prepare_request_data(self, proto)
1348                 data.update({
1349                         "system" : "dyndns",
1350                 })
1351
1352                 return data
1353
1354
1355 class DDNSProviderRegfish(DDNSProvider):
1356         handle  = "regfish.com"
1357         name    = "Regfish GmbH"
1358         website = "http://www.regfish.com/"
1359
1360         # A full documentation to the providers api can be found here
1361         # but is only available in german.
1362         # https://www.regfish.de/domains/dyndns/dokumentation
1363
1364         url = "https://dyndns.regfish.de/"
1365         can_remove_records = False
1366
1367         def update(self):
1368                 data = {
1369                         "fqdn" : self.hostname,
1370                 }
1371
1372                 # Check if we update an IPv6 address.
1373                 address6 = self.get_address("ipv6")
1374                 if address6:
1375                         data["ipv6"] = address6
1376
1377                 # Check if we update an IPv4 address.
1378                 address4 = self.get_address("ipv4")
1379                 if address4:
1380                         data["ipv4"] = address4
1381
1382                 # Raise an error if none address is given.
1383                 if not data.has_key("ipv6") and not data.has_key("ipv4"):
1384                         raise DDNSConfigurationError
1385
1386                 # Check if a token has been set.
1387                 if self.token:
1388                         data["token"] = self.token
1389
1390                 # Raise an error if no token and no useranem and password
1391                 # are given.
1392                 elif not self.username and not self.password:
1393                         raise DDNSConfigurationError(_("No Auth details specified"))
1394
1395                 # HTTP Basic Auth is only allowed if no token is used.
1396                 if self.token:
1397                         # Send update to the server.
1398                         response = self.send_request(self.url, data=data)
1399                 else:
1400                         # Send update to the server.
1401                         response = self.send_request(self.url, username=self.username, password=self.password,
1402                                 data=data)
1403
1404                 # Get the full response message.
1405                 output = response.read()
1406
1407                 # Handle success messages.
1408                 if "100" in output or "101" in output:
1409                         return
1410
1411                 # Handle error codes.
1412                 if "401" or "402" in output:
1413                         raise DDNSAuthenticationError
1414                 elif "408" in output:
1415                         raise DDNSRequestError(_("Invalid IPv4 address has been sent"))
1416                 elif "409" in output:
1417                         raise DDNSRequestError(_("Invalid IPv6 address has been sent"))
1418                 elif "412" in output:
1419                         raise DDNSRequestError(_("No valid FQDN was given"))
1420                 elif "414" in output:
1421                         raise DDNSInternalServerError
1422
1423                 # If we got here, some other update error happened.
1424                 raise DDNSUpdateError
1425
1426
1427 class DDNSProviderSchokokeksDNS(DDNSProtocolDynDNS2, DDNSProvider):
1428         handle    = "schokokeks.org"
1429         name      = "Schokokeks"
1430         website   = "http://www.schokokeks.org/"
1431         protocols = ("ipv4",)
1432
1433         # Information about the format of the request is to be found
1434         # https://wiki.schokokeks.org/DynDNS
1435         url = "https://dyndns.schokokeks.org/nic/update"
1436
1437
1438 class DDNSProviderSelfhost(DDNSProtocolDynDNS2, DDNSProvider):
1439         handle    = "selfhost.de"
1440         name      = "Selfhost.de"
1441         website   = "http://www.selfhost.de/"
1442         protocols = ("ipv4",)
1443
1444         url = "https://carol.selfhost.de/nic/update"
1445
1446         def prepare_request_data(self, proto):
1447                 data = DDNSProtocolDynDNS2.prepare_request_data(self, proto)
1448                 data.update({
1449                         "hostname" : "1",
1450                 })
1451
1452                 return data
1453
1454
1455 class DDNSProviderSPDNS(DDNSProtocolDynDNS2, DDNSProvider):
1456         handle    = "spdns.org"
1457         name      = "SPDYN"
1458         website   = "https://www.spdyn.de/"
1459
1460         # Detailed information about request and response codes are provided
1461         # by the vendor. They are using almost the same mechanism and status
1462         # codes as dyndns.org so we can inherit all those stuff.
1463         #
1464         # http://wiki.securepoint.de/index.php/SPDNS_FAQ
1465         # http://wiki.securepoint.de/index.php/SPDNS_Update-Tokens
1466
1467         url = "https://update.spdyn.de/nic/update"
1468
1469         @property
1470         def username(self):
1471                 return self.get("username") or self.hostname
1472
1473         @property
1474         def password(self):
1475                 return self.get("password") or self.token
1476
1477
1478 class DDNSProviderStrato(DDNSProtocolDynDNS2, DDNSProvider):
1479         handle    = "strato.com"
1480         name      = "Strato AG"
1481         website   = "http:/www.strato.com/"
1482         protocols = ("ipv4",)
1483
1484         # Information about the request and response can be obtained here:
1485         # http://www.strato-faq.de/article/671/So-einfach-richten-Sie-DynDNS-f%C3%BCr-Ihre-Domains-ein.html
1486
1487         url = "https://dyndns.strato.com/nic/update"
1488
1489         def prepare_request_data(self, proto):
1490                 data = DDNSProtocolDynDNS2.prepare_request_data(self, proto)
1491                 data.update({
1492                         "mx" : "NOCHG",
1493                         "backupmx" : "NOCHG"
1494                 })
1495
1496                 return data
1497
1498
1499 class DDNSProviderTwoDNS(DDNSProtocolDynDNS2, DDNSProvider):
1500         handle    = "twodns.de"
1501         name      = "TwoDNS"
1502         website   = "http://www.twodns.de"
1503         protocols = ("ipv4",)
1504
1505         # Detailed information about the request can be found here
1506         # http://twodns.de/en/faqs
1507         # http://twodns.de/en/api
1508
1509         url = "https://update.twodns.de/update"
1510
1511         def prepare_request_data(self, proto):
1512                 assert proto == "ipv4"
1513
1514                 data = {
1515                         "ip"       : self.get_address(proto),
1516                         "hostname" : self.hostname
1517                 }
1518
1519                 return data
1520
1521
1522 class DDNSProviderUdmedia(DDNSProtocolDynDNS2, DDNSProvider):
1523         handle    = "udmedia.de"
1524         name      = "Udmedia GmbH"
1525         website   = "http://www.udmedia.de"
1526         protocols = ("ipv4",)
1527
1528         # Information about the request can be found here
1529         # http://www.udmedia.de/faq/content/47/288/de/wie-lege-ich-einen-dyndns_eintrag-an.html
1530
1531         url = "https://www.udmedia.de/nic/update"
1532
1533
1534 class DDNSProviderVariomedia(DDNSProtocolDynDNS2, DDNSProvider):
1535         handle    = "variomedia.de"
1536         name      = "Variomedia"
1537         website   = "http://www.variomedia.de/"
1538         protocols = ("ipv6", "ipv4",)
1539
1540         # Detailed information about the request can be found here
1541         # https://dyndns.variomedia.de/
1542
1543         url = "https://dyndns.variomedia.de/nic/update"
1544
1545         def prepare_request_data(self, proto):
1546                 data = {
1547                         "hostname" : self.hostname,
1548                         "myip"     : self.get_address(proto),
1549                 }
1550
1551                 return data
1552
1553
1554 class DDNSProviderXLhost(DDNSProtocolDynDNS2, DDNSProvider):
1555         handle    = "xlhost.de"
1556         name      = "XLhost"
1557         website   = "http://xlhost.de/"
1558         protocols = ("ipv4",)
1559
1560         # Information about the format of the HTTP request is to be found
1561         # here: https://xlhost.de/faq/index_html?topicId=CQA2ELIPO4SQ
1562
1563         url = "https://nsupdate.xlhost.de/"
1564
1565
1566 class DDNSProviderZoneedit(DDNSProvider):
1567         handle    = "zoneedit.com"
1568         name      = "Zoneedit"
1569         website   = "http://www.zoneedit.com"
1570         protocols = ("ipv4",)
1571
1572         # Detailed information about the request and the response codes can be
1573         # obtained here:
1574         # http://www.zoneedit.com/doc/api/other.html
1575         # http://www.zoneedit.com/faq.html
1576
1577         url = "https://dynamic.zoneedit.com/auth/dynamic.html"
1578
1579         def update_protocol(self, proto):
1580                 data = {
1581                         "dnsto" : self.get_address(proto),
1582                         "host"  : self.hostname
1583                 }
1584
1585                 # Send update to the server.
1586                 response = self.send_request(self.url, username=self.username, password=self.password,
1587                         data=data)
1588
1589                 # Get the full response message.
1590                 output = response.read()
1591
1592                 # Handle success messages.
1593                 if output.startswith("<SUCCESS"):
1594                         return
1595
1596                 # Handle error codes.
1597                 if output.startswith("invalid login"):
1598                         raise DDNSAuthenticationError
1599                 elif output.startswith("<ERROR CODE=\"704\""):
1600                         raise DDNSRequestError(_("No valid FQDN was given"))
1601                 elif output.startswith("<ERROR CODE=\"702\""):
1602                         raise DDNSRequestError(_("Too frequent update requests have been sent"))
1603
1604                 # If we got here, some other update error happened.
1605                 raise DDNSUpdateError
1606
1607
1608 class DDNSProviderDNSmadeEasy(DDNSProvider):
1609         handle    = "dnsmadeeasy.com"
1610         name      = "DNSmadeEasy.com"
1611         website   = "http://www.dnsmadeeasy.com/"
1612         protocols = ("ipv4",)
1613
1614         # DNS Made Easy Nameserver Provider also offering Dynamic DNS
1615         # Documentation can be found here:
1616         # http://www.dnsmadeeasy.com/dynamic-dns/
1617
1618         url = "https://cp.dnsmadeeasy.com/servlet/updateip?"
1619         can_remove_records = False
1620
1621         def update_protocol(self, proto):
1622                 data = {
1623                         "ip" : self.get_address(proto),
1624                         "id" : self.hostname,
1625                         "username" : self.username,
1626                         "password" : self.password,
1627                 }
1628
1629                 # Send update to the server.
1630                 response = self.send_request(self.url, data=data)
1631
1632                 # Get the full response message.
1633                 output = response.read()
1634
1635                 # Handle success messages.
1636                 if output.startswith("success") or output.startswith("error-record-ip-same"):
1637                         return
1638
1639                 # Handle error codes.
1640                 if output.startswith("error-auth-suspend"):
1641                         raise DDNSRequestError(_("Account has been suspended"))
1642
1643                 elif output.startswith("error-auth-voided"):
1644                         raise DDNSRequestError(_("Account has been revoked"))
1645
1646                 elif output.startswith("error-record-invalid"):
1647                         raise DDNSRequestError(_("Specified host does not exist"))
1648
1649                 elif output.startswith("error-auth"):
1650                         raise DDNSAuthenticationError
1651
1652                 # If we got here, some other update error happened.
1653                 raise DDNSUpdateError(_("Server response: %s") % output)
1654
1655
1656 class DDNSProviderZZZZ(DDNSProvider):
1657         handle    = "zzzz.io"
1658         name      = "zzzz"
1659         website   = "https://zzzz.io"
1660         protocols = ("ipv6", "ipv4",)
1661
1662         # Detailed information about the update request can be found here:
1663         # https://zzzz.io/faq/
1664
1665         # Details about the possible response codes have been provided in the bugtracker:
1666         # https://bugzilla.ipfire.org/show_bug.cgi?id=10584#c2
1667
1668         url = "https://zzzz.io/api/v1/update"
1669         can_remove_records = False
1670
1671         def update_protocol(self, proto):
1672                 data = {
1673                         "ip"    : self.get_address(proto),
1674                         "token" : self.token,
1675                 }
1676
1677                 if proto == "ipv6":
1678                         data["type"] = "aaaa"
1679
1680                 # zzzz uses the host from the full hostname as part
1681                 # of the update url.
1682                 host, domain = self.hostname.split(".", 1)
1683
1684                 # Add host value to the update url.
1685                 url = "%s/%s" % (self.url, host)
1686
1687                 # Send update to the server.
1688                 try:
1689                         response = self.send_request(url, data=data)
1690
1691                 # Handle error codes.
1692                 except DDNSNotFound:
1693                         raise DDNSRequestError(_("Invalid hostname specified"))
1694
1695                 # Handle success messages.
1696                 if response.code == 200:
1697                         return
1698
1699                 # If we got here, some other update error happened.
1700                 raise DDNSUpdateError