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
  24 from i18n import _
  25
  26 # Import all possible exception types.
  27 from .errors import *
  28
  29 logger = logging.getLogger("ddns.providers")
  30 logger.propagate = 1
  31
  32 class DDNSProvider(object):
  33         INFO = {
  34                 # A short string that uniquely identifies
  35                 # this provider.
  36                 "handle"    : None,
  37
  38                 # The full name of the provider.
  39                 "name"      : None,
  40
  41                 # A weburl to the homepage of the provider.
  42                 # (Where to register a new account?)
  43                 "website"   : None,
  44
  45                 # A list of supported protocols.
  46                 "protocols" : ["ipv6", "ipv4"],
  47         }
  48
  49         DEFAULT_SETTINGS = {}
  50
  51         def __init__(self, core, **settings):
  52                 self.core = core
  53
  54                 # Copy a set of default settings and
  55                 # update them by those from the configuration file.
  56                 self.settings = self.DEFAULT_SETTINGS.copy()
  57                 self.settings.update(settings)
  58
  59         def __repr__(self):
  60                 return "<DDNS Provider %s (%s)>" % (self.name, self.handle)
  61
  62         def __cmp__(self, other):
  63                 return cmp(self.hostname, other.hostname)
  64
  65         @property
  66         def name(self):
  67                 """
  68                         Returns the name of the provider.
  69                 """
  70                 return self.INFO.get("name")
  71
  72         @property
  73         def website(self):
  74                 """
  75                         Returns the website URL of the provider
  76                         or None if that is not available.
  77                 """
  78                 return self.INFO.get("website", None)
  79
  80         @property
  81         def handle(self):
  82                 """
  83                         Returns the handle of this provider.
  84                 """
  85                 return self.INFO.get("handle")
  86
  87         def get(self, key, default=None):
  88                 """
  89                         Get a setting from the settings dictionary.
  90                 """
  91                 return self.settings.get(key, default)
  92
  93         @property
  94         def hostname(self):
  95                 """
  96                         Fast access to the hostname.
  97                 """
  98                 return self.get("hostname")
  99
 100         @property
 101         def username(self):
 102                 """
 103                         Fast access to the username.
 104                 """
 105                 return self.get("username")
 106
 107         @property
 108         def password(self):
 109                 """
 110                         Fast access to the password.
 111                 """
 112                 return self.get("password")
 113
 114         @property
 115         def protocols(self):
 116                 return self.INFO.get("protocols")
 117
 118         def __call__(self, force=False):
 119                 if force:
 120                         logger.info(_("Updating %s forced") % self.hostname)
 121
 122                 # Check if we actually need to update this host.
 123                 elif self.is_uptodate(self.protocols):
 124                         logger.info(_("%s is already up to date") % self.hostname)
 125                         return
 126
 127                 # Execute the update.
 128                 self.update()
 129
 130         def update(self):
 131                 raise NotImplementedError
 132
 133         def is_uptodate(self, protos):
 134                 """
 135                         Returns True if this host is already up to date
 136                         and does not need to change the IP address on the
 137                         name server.
 138                 """
 139                 for proto in protos:
 140                         addresses = self.core.system.resolve(self.hostname, proto)
 141
 142                         current_address = self.get_address(proto)
 143
 144                         if not current_address in addresses:
 145                                 return False
 146
 147                 return True
 148
 149         def send_request(self, *args, **kwargs):
 150                 """
 151                         Proxy connection to the send request
 152                         method.
 153                 """
 154                 return self.core.system.send_request(*args, **kwargs)
 155
 156         def get_address(self, proto):
 157                 """
 158                         Proxy method to get the current IP address.
 159                 """
 160                 return self.core.system.get_address(proto)
 161
 162
 163 class DDNSProviderDHS(DDNSProvider):
 164         INFO = {
 165                 "handle"    : "dhs.org",
 166                 "name"      : "DHS International",
 167                 "website"   : "http://dhs.org/",
 168                 "protocols" : ["ipv4",]
 169         }
 170
 171         # No information about the used update api provided on webpage,
 172         # grabed from source code of ez-ipudate.
 173         url = "http://members.dhs.org/nic/hosts"
 174
 175         def update(self):
 176                 url = self.url % {
 177                         "username" : self.username,
 178                         "password" : self.password,
 179                 }
 180
 181                 data = {
 182                         "domain"       : self.hostname,
 183                         "ip"           : self.get_address("ipv4"),
 184                         "hostcmd"      : "edit",
 185                         "hostcmdstage" : "2",
 186                         "type"         : "4",
 187                 }
 188
 189                 # Send update to the server.
 190                 response = self.send_request(url, username=self.username, password=self.password,
 191                         data=data)
 192
 193                 # Handle success messages.
 194                 if response.code == 200:
 195                         return
 196
 197                 # Handle error codes.
 198                 elif response.code == 401:
 199                         raise DDNSAuthenticationError
 200
 201                 # If we got here, some other update error happened.
 202                 raise DDNSUpdateError
 203
 204
 205 class DDNSProviderDNSpark(DDNSProvider):
 206         INFO = {
 207                 "handle"    : "dnspark.com",
 208                 "name"      : "DNS Park",
 209                 "website"   : "http://dnspark.com/",
 210                 "protocols" : ["ipv4",]
 211         }
 212
 213         # Informations to the used api can be found here:
 214         # https://dnspark.zendesk.com/entries/31229348-Dynamic-DNS-API-Documentation
 215         url = "https://control.dnspark.com/api/dynamic/update.php"
 216
 217         def update(self):
 218                 url = self.url % {
 219                         "username" : self.username,
 220                         "password" : self.password,
 221                 }
 222
 223                 data = {
 224                         "domain" : self.hostname,
 225                         "ip"     : self.get_address("ipv4"),
 226                 }
 227
 228                 # Send update to the server.
 229                 response = self.send_request(url, username=self.username, password=self.password,
 230                         data=data)
 231
 232                 # Get the full response message.
 233                 output = response.read()
 234
 235                 # Handle success messages.
 236                 if output.startswith("ok") or output.startswith("nochange"):
 237                         return
 238
 239                 # Handle error codes.
 240                 if output == "unauth":
 241                         raise DDNSAuthenticationError
 242                 elif output == "abuse":
 243                         raise DDNSAbuseError
 244                 elif output == "blocked":
 245                         raise DDNSBlockedError
 246                 elif output == "nofqdn":
 247                         raise DDNSRequestError(_("No valid FQDN was given."))
 248                 elif output == "nohost":
 249                         raise DDNSRequestError(_("Invalid hostname specified."))
 250                 elif output == "notdyn":
 251                         raise DDNSRequestError(_("Hostname not marked as a dynamic host."))
 252                 elif output == "invalid":
 253                         raise DDNSRequestError(_("Invalid IP address has been sent."))
 254
 255                 # If we got here, some other update error happened.
 256                 raise DDNSUpdateError
 257
 258
 259 class DDNSProviderDtDNS(DDNSProvider):
 260         INFO = {
 261                 "handle"    : "dtdns.com",
 262                 "name"      : "DtDNS",
 263                 "website"   : "http://dtdns.com/",
 264                 "protocols" : ["ipv4",]
 265                 }
 266
 267         # Information about the format of the HTTPS request is to be found
 268         # http://www.dtdns.com/dtsite/updatespec
 269         url = "https://www.dtdns.com/api/autodns.cfm"
 270
 271
 272         def update(self):
 273                 data = {
 274                         "ip" : self.get_address("ipv4"),
 275                         "id" : self.hostname,
 276                         "pw" : self.password
 277                 }
 278
 279                 # Send update to the server.
 280                 response = self.send_request(self.url, data=data)
 281
 282                 # Get the full response message.
 283                 output = response.read()
 284
 285                 # Remove all leading and trailing whitespace.
 286                 output = output.strip()
 287
 288                 # Handle success messages.
 289                 if "now points to" in output:
 290                         return
 291
 292                 # Handle error codes.
 293                 if output == "No hostname to update was supplied.":
 294                         raise DDNSRequestError(_("No hostname specified."))
 295
 296                 elif output == "The hostname you supplied is not valid.":
 297                         raise DDNSRequestError(_("Invalid hostname specified."))
 298
 299                 elif output == "The password you supplied is not valid.":
 300                         raise DDNSAuthenticationError
 301
 302                 elif output == "Administration has disabled this account.":
 303                         raise DDNSRequestError(_("Account has been disabled."))
 304
 305                 elif output == "Illegal character in IP.":
 306                         raise DDNSRequestError(_("Invalid IP address has been sent."))
 307
 308                 elif output == "Too many failed requests.":
 309                         raise DDNSRequestError(_("Too many failed requests."))
 310
 311                 # If we got here, some other update error happened.
 312                 raise DDNSUpdateError
 313
 314
 315 class DDNSProviderLightningWireLabs(DDNSProvider):
 316         INFO = {
 317                 "handle"    : "dns.lightningwirelabs.com",
 318                 "name"      : "Lightning Wire Labs",
 319                 "website"   : "http://dns.lightningwirelabs.com/",
 320                 "protocols" : ["ipv6", "ipv4",]
 321         }
 322
 323         # Information about the format of the HTTPS request is to be found
 324         # https://dns.lightningwirelabs.com/knowledge-base/api/ddns
 325         url = "https://dns.lightningwirelabs.com/update"
 326
 327         @property
 328         def token(self):
 329                 """
 330                         Fast access to the token.
 331                 """
 332                 return self.get("token")
 333
 334         def update(self):
 335                 data =  {
 336                         "hostname" : self.hostname,
 337                 }
 338
 339                 # Check if we update an IPv6 address.
 340                 address6 = self.get_address("ipv6")
 341                 if address6:
 342                         data["address6"] = address6
 343
 344                 # Check if we update an IPv4 address.
 345                 address4 = self.get_address("ipv4")
 346                 if address4:
 347                         data["address4"] = address4
 348
 349                 # Raise an error if none address is given.
 350                 if not data.has_key("address6") and not data.has_key("address4"):
 351                         raise DDNSConfigurationError
 352
 353                 # Check if a token has been set.
 354                 if self.token:
 355                         data["token"] = self.token
 356
 357                 # Check for username and password.
 358                 elif self.username and self.password:
 359                         data.update({
 360                                 "username" : self.username,
 361                                 "password" : self.password,
 362                         })
 363
 364                 # Raise an error if no auth details are given.
 365                 else:
 366                         raise DDNSConfigurationError
 367
 368                 # Send update to the server.
 369                 response = self.send_request(self.url, data=data)
 370
 371                 # Handle success messages.
 372                 if response.code == 200:
 373                         return
 374
 375                 # Handle error codes.
 376                 if response.code == 403:
 377                         raise DDNSAuthenticationError
 378                 elif response.code == 400:
 379                         raise DDNSRequestError
 380
 381                 # If we got here, some other update error happened.
 382                 raise DDNSUpdateError
 383
 384
 385 class DDNSProviderNOIP(DDNSProvider):
 386         INFO = {
 387                 "handle"    : "no-ip.com",
 388                 "name"      : "No-IP",
 389                 "website"   : "http://www.no-ip.com/",
 390                 "protocols" : ["ipv4",]
 391         }
 392
 393         # Information about the format of the HTTP request is to be found
 394         # here: http://www.no-ip.com/integrate/request and
 395         # here: http://www.no-ip.com/integrate/response
 396
 397         url = "http://%(username)s:%(password)s@dynupdate.no-ip.com/nic/update"
 398
 399         def update(self):
 400                 url = self.url % {
 401                         "username" : self.username,
 402                         "password" : self.password,
 403                 }
 404
 405                 data = {
 406                         "hostname" : self.hostname,
 407                         "address"  : self.get_address("ipv4"),
 408                 }
 409
 410                 # Send update to the server.
 411                 response = self.send_request(url, data=data)
 412
 413                 # Get the full response message.
 414                 output = response.read()
 415
 416                 # Handle success messages.
 417                 if output.startswith("good") or output.startswith("nochg"):
 418                         return
 419
 420                 # Handle error codes.
 421                 if output == "badauth":
 422                         raise DDNSAuthenticationError
 423                 elif output == "aduse":
 424                         raise DDNSAbuseError
 425                 elif output == "911":
 426                         raise DDNSInternalServerError
 427
 428                 # If we got here, some other update error happened.
 429                 raise DDNSUpdateError
 430
 431
 432 class DDNSProviderSelfhost(DDNSProvider):
 433         INFO = {
 434                 "handle"    : "selfhost.de",
 435                 "name"      : "Selfhost.de",
 436                 "website"   : "http://www.selfhost.de/",
 437                 "protocols" : ["ipv4",],
 438         }
 439
 440         url = "https://carol.selfhost.de/update"
 441
 442         def update(self):
 443                 data = {
 444                         "username" : self.username,
 445                         "password" : self.password,
 446                         "textmodi" : "1",
 447                 }
 448
 449                 response = self.send_request(self.url, data=data)
 450
 451                 match = re.search("status=20(0|4)", response.read())
 452                 if not match:
 453                         raise DDNSUpdateError