Mercurial > libervia-backend
annotate src/plugins/plugin_misc_imap.py @ 594:e629371a28d3
Fix pep8 support in src/plugins.
| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
|---|---|
| date | Fri, 18 Jan 2013 17:55:35 +0100 |
| parents | beaf6bec2fcd |
| children | 84a6e83157c2 |
| rev | line source |
|---|---|
| 253 | 1 #!/usr/bin/python |
| 2 # -*- coding: utf-8 -*- | |
| 3 | |
| 4 """ | |
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5 SàT plugin for managing imap server |
| 253 | 6 Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org) |
| 7 | |
| 8 This program is free software: you can redistribute it and/or modify | |
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9 it under the terms of the GNU Affero General Public License as published by |
| 253 | 10 the Free Software Foundation, either version 3 of the License, or |
| 11 (at your option) any later version. | |
| 12 | |
| 13 This program is distributed in the hope that it will be useful, | |
| 14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
|
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16 GNU Affero General Public License for more details. |
| 253 | 17 |
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18 You should have received a copy of the GNU Affero General Public License |
| 253 | 19 along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 """ | |
| 21 | |
| 22 from logging import debug, info, error | |
| 23 import warnings | |
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24 from twisted.internet import protocol, defer |
| 253 | 25 from twisted.words.protocols.jabber import error as jab_error |
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26 from twisted.cred import portal, checkers, credentials |
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27 from twisted.cred import error as cred_error |
| 253 | 28 from twisted.mail import imap4 |
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29 from twisted.python import failure |
| 253 | 30 from email.parser import Parser |
| 31 import email.message | |
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32 import os |
| 253 | 33 from cStringIO import StringIO |
| 34 from twisted.internet import reactor | |
| 35 import pdb | |
| 36 | |
| 37 from zope.interface import implements | |
| 38 | |
| 39 PLUGIN_INFO = { | |
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40 "name": "IMAP server Plugin", |
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41 "import_name": "IMAP", |
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42 "type": "Misc", |
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43 "protocols": [], |
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44 "dependencies": ["Maildir"], |
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45 "main": "IMAP_server", |
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46 "handler": "no", |
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47 "description": _("""Create an Imap server that you can use to read your "normal" type messages""") |
| 253 | 48 } |
| 49 | |
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50 |
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51 class IMAP_server(object): |
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52 #TODO: connect profile on mailbox request, once password is accepted |
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53 |
| 253 | 54 params = """ |
| 55 <params> | |
| 56 <general> | |
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57 <category name="Mail Server"> |
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58 <param name="IMAP Port" value="10143" type="string" /> |
| 253 | 59 </category> |
| 60 </general> | |
| 61 </params> | |
| 62 """ | |
| 63 | |
| 64 def __init__(self, host): | |
| 65 info(_("Plugin Imap Server initialization")) | |
| 66 self.host = host | |
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67 |
| 253 | 68 #parameters |
| 69 host.memory.importParams(self.params) | |
| 70 | |
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71 port = int(self.host.memory.getParamA("IMAP Port", "Mail Server")) |
| 253 | 72 info(_("Launching IMAP server on port %d"), port) |
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73 |
| 253 | 74 self.server_factory = ImapServerFactory(self.host) |
| 75 reactor.listenTCP(port, self.server_factory) | |
| 76 | |
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77 |
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78 class Message(object): |
| 253 | 79 implements(imap4.IMessage) |
| 80 | |
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81 def __init__(self, uid, flags, mess_fp): |
| 253 | 82 debug('Message Init') |
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83 self.uid = uid |
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84 self.flags = flags |
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85 self.mess_fp = mess_fp |
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86 self.message = Parser().parse(mess_fp) |
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87 |
| 253 | 88 def getUID(self): |
| 89 """Retrieve the unique identifier associated with this message. | |
| 90 """ | |
| 91 debug('getUID (message)') | |
| 92 return self.uid | |
| 93 | |
| 94 def getFlags(self): | |
| 95 """Retrieve the flags associated with this message. | |
| 96 @return: The flags, represented as strings. | |
| 97 """ | |
| 98 debug('getFlags') | |
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99 return self.flags |
| 253 | 100 |
| 101 def getInternalDate(self): | |
| 102 """Retrieve the date internally associated with this message. | |
| 103 @return: An RFC822-formatted date string. | |
| 104 """ | |
| 105 debug('getInternalDate') | |
| 106 return self.message['Date'] | |
| 107 | |
| 108 def getHeaders(self, negate, *names): | |
| 109 """Retrieve a group of message headers. | |
| 110 @param names: The names of the headers to retrieve or omit. | |
| 111 @param negate: If True, indicates that the headers listed in names | |
| 112 should be omitted from the return value, rather than included. | |
| 113 @return: A mapping of header field names to header field values | |
| 114 """ | |
| 115 debug('getHeaders %s - %s' % (negate, names)) | |
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116 final_dict = {} |
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117 to_check = [name.lower() for name in names] |
| 253 | 118 for header in self.message.keys(): |
| 119 if (negate and not header.lower() in to_check) or \ | |
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120 (not negate and header.lower() in to_check): |
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121 final_dict[header] = self.message[header] |
| 253 | 122 return final_dict |
| 123 | |
| 124 def getBodyFile(self): | |
| 125 """Retrieve a file object containing only the body of this message. | |
| 126 """ | |
| 127 debug('getBodyFile') | |
| 128 return StringIO(self.message.get_payload()) | |
| 129 | |
| 130 def getSize(self): | |
| 131 """Retrieve the total size, in octets, of this message. | |
| 132 """ | |
| 133 debug('getSize') | |
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134 self.mess_fp.seek(0, os.SEEK_END) |
| 253 | 135 return self.mess_fp.tell() |
| 136 | |
| 137 def isMultipart(self): | |
| 138 """Indicate whether this message has subparts. | |
| 139 """ | |
| 140 debug('isMultipart') | |
| 141 return False | |
| 142 | |
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143 def getSubPart(self, part): |
| 253 | 144 """Retrieve a MIME sub-message |
| 145 @param part: The number of the part to retrieve, indexed from 0. | |
| 146 @return: The specified sub-part. | |
| 147 """ | |
| 148 debug('getSubPart') | |
| 149 return TypeError | |
| 150 | |
| 151 | |
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152 class SatMailbox(object): |
| 253 | 153 implements(imap4.IMailbox) |
| 154 | |
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155 def __init__(self, host, name, profile): |
| 253 | 156 self.host = host |
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157 self.listeners = set() |
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158 debug('Mailbox init (%s)', name) |
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159 if name != "INBOX": |
| 253 | 160 raise imap4.MailboxException("Only INBOX is managed for the moment") |
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161 self.mailbox = self.host.plugins["Maildir"].accessMessageBox(name, self.newMessage, profile) |
| 253 | 162 |
| 163 def newMessage(self): | |
| 164 """Called when a new message is in the mailbox""" | |
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165 debug("newMessage signal received") |
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166 nb_messages = self.getMessageCount() |
| 253 | 167 for listener in self.listeners: |
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168 listener.newMessages(nb_messages, None) |
| 253 | 169 |
| 170 def getUIDValidity(self): | |
| 171 """Return the unique validity identifier for this mailbox. | |
| 172 """ | |
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173 debug('getUIDValidity') |
| 253 | 174 return 0 |
| 175 | |
| 176 def getUIDNext(self): | |
| 177 """Return the likely UID for the next message added to this mailbox. | |
| 178 """ | |
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179 debug('getUIDNext') |
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180 return self.mailbox.getNextUid() |
| 253 | 181 |
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182 def getUID(self, message): |
| 253 | 183 """Return the UID of a message in the mailbox |
| 184 @param message: The message sequence number | |
| 185 @return: The UID of the message. | |
| 186 """ | |
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187 debug('getUID (%i)' % message) |
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188 #return self.mailbox.getUid(message-1) #XXX: it seems that this method get uid and not message sequence number |
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189 return message |
| 253 | 190 |
| 191 def getMessageCount(self): | |
| 192 """Return the number of messages in this mailbox. | |
| 193 """ | |
| 194 debug('getMessageCount') | |
| 195 ret = self.mailbox.getMessageCount() | |
| 196 debug("count = %i" % ret) | |
| 197 return ret | |
| 198 | |
| 199 def getRecentCount(self): | |
| 200 """Return the number of messages with the 'Recent' flag. | |
| 201 """ | |
| 202 debug('getRecentCount') | |
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203 return len(self.mailbox.getMessageIdsWithFlag('\\Recent')) |
| 253 | 204 |
| 205 def getUnseenCount(self): | |
| 206 """Return the number of messages with the 'Unseen' flag. | |
| 207 """ | |
| 208 debug('getUnseenCount') | |
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209 return self.getMessageCount() - len(self.mailbox.getMessageIdsWithFlag('\\SEEN')) |
| 253 | 210 |
| 211 def isWriteable(self): | |
| 212 """Get the read/write status of the mailbox. | |
| 213 @return: A true value if write permission is allowed, a false value otherwise. | |
| 214 """ | |
| 215 debug('isWriteable') | |
| 216 return True | |
| 217 | |
| 218 def destroy(self): | |
| 219 """Called before this mailbox is deleted, permanently. | |
| 220 """ | |
| 221 debug('destroy') | |
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222 |
| 253 | 223 def requestStatus(self, names): |
| 224 """Return status information about this mailbox. | |
| 225 @param names: The status names to return information regarding. | |
| 226 The possible values for each name are: MESSAGES, RECENT, UIDNEXT, | |
| 227 UIDVALIDITY, UNSEEN. | |
| 228 @return: A dictionary containing status information about the | |
| 229 requested names is returned. If the process of looking this | |
| 230 information up would be costly, a deferred whose callback will | |
| 231 eventually be passed this dictionary is returned instead. | |
| 232 """ | |
| 233 debug('requestStatus') | |
| 234 return imap4.statusRequestHelper(self, names) | |
| 235 | |
| 236 def addListener(self, listener): | |
| 237 """Add a mailbox change listener | |
| 238 | |
| 239 @type listener: Any object which implements C{IMailboxListener} | |
| 240 @param listener: An object to add to the set of those which will | |
| 241 be notified when the contents of this mailbox change. | |
| 242 """ | |
| 243 debug('addListener %s' % listener) | |
| 244 self.listeners.add(listener) | |
| 245 | |
| 246 def removeListener(self, listener): | |
| 247 """Remove a mailbox change listener | |
| 248 | |
| 249 @type listener: Any object previously added to and not removed from | |
| 250 this mailbox as a listener. | |
| 251 @param listener: The object to remove from the set of listeners. | |
| 252 | |
| 253 @raise ValueError: Raised when the given object is not a listener for | |
| 254 this mailbox. | |
| 255 """ | |
| 256 debug('removeListener') | |
| 257 if listener in self.listeners: | |
| 258 self.listeners.remove(listener) | |
| 259 else: | |
| 260 raise imap4.MailboxException('Trying to remove an unknown listener') | |
| 261 | |
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262 def addMessage(self, message, flags=(), date=None): |
| 253 | 263 """Add the given message to this mailbox. |
| 264 @param message: The RFC822 formatted message | |
| 265 @param flags: The flags to associate with this message | |
| 266 @param date: If specified, the date to associate with this | |
| 267 @return: A deferred whose callback is invoked with the message | |
| 268 id if the message is added successfully and whose errback is | |
| 269 invoked otherwise. | |
| 270 """ | |
| 271 debug('addMessage') | |
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272 raise imap4.MailboxException("Client message addition not implemented yet") |
| 253 | 273 |
| 274 def expunge(self): | |
| 275 """Remove all messages flagged \\Deleted. | |
| 276 @return: The list of message sequence numbers which were deleted, | |
| 277 or a Deferred whose callback will be invoked with such a list. | |
| 278 """ | |
| 279 debug('expunge') | |
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280 self.mailbox.removeDeleted() |
| 253 | 281 |
| 282 def fetch(self, messages, uid): | |
| 283 """Retrieve one or more messages. | |
| 284 @param messages: The identifiers of messages to retrieve information | |
| 285 about | |
| 286 @param uid: If true, the IDs specified in the query are UIDs; | |
| 287 """ | |
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288 debug('fetch (%s, %s)' % (messages, uid)) |
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289 if uid: |
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290 messages.last = self.mailbox.getMaxUid() |
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291 messages.getnext = self.mailbox.getNextExistingUid |
|
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292 for mess_uid in messages: |
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293 if mess_uid is None: |
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294 debug('stopping iteration') |
|
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295 raise StopIteration |
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296 try: |
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297 yield (mess_uid, Message(mess_uid, self.mailbox.getFlagsUid(mess_uid), self.mailbox.getMessageUid(mess_uid))) |
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298 except IndexError: |
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299 continue |
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300 else: |
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301 messages.last = self.getMessageCount() |
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302 for mess_idx in messages: |
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303 if mess_idx > self.getMessageCount(): |
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304 raise StopIteration |
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305 yield (mess_idx, Message(mess_idx, self.mailbox.getFlags(mess_idx), self.mailbox.getMessage(mess_idx - 1))) |
| 253 | 306 |
| 307 def store(self, messages, flags, mode, uid): | |
| 308 """Set the flags of one or more messages. | |
| 309 @param messages: The identifiers of the messages to set the flags of. | |
| 310 @param flags: The flags to set, unset, or add. | |
| 311 @param mode: If mode is -1, these flags should be removed from the | |
| 312 specified messages. If mode is 1, these flags should be added to | |
| 313 the specified messages. If mode is 0, all existing flags should be | |
| 314 cleared and these flags should be added. | |
| 315 @param uid: If true, the IDs specified in the query are UIDs; | |
| 316 otherwise they are message sequence IDs. | |
| 317 @return: A dict mapping message sequence numbers to sequences of str | |
| 318 representing the flags set on the message after this operation has | |
| 319 been performed, or a Deferred whose callback will be invoked with | |
| 320 such a dict. | |
| 321 """ | |
| 322 debug('store') | |
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323 |
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324 flags = [flag.upper() for flag in flags] |
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325 |
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326 def updateFlags(getF, setF): |
|
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327 ret = {} |
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328 for mess_id in messages: |
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329 if (uid and mess_id is None) or (not uid and mess_id > self.getMessageCount()): |
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330 break |
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331 _flags = set(getF(mess_id) if mode else []) |
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332 if mode == -1: |
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333 _flags.difference_update(set(flags)) |
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334 else: |
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335 _flags.update(set(flags)) |
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336 new_flags = list(_flags) |
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337 setF(mess_id, new_flags) |
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338 ret[mess_id] = tuple(new_flags) |
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339 return ret |
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340 |
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341 if uid: |
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342 messages.last = self.mailbox.getMaxUid() |
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343 messages.getnext = self.mailbox.getNextExistingUid |
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344 ret = updateFlags(self.mailbox.getFlagsUid, self.mailbox.setFlagsUid) |
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345 for listener in self.listeners: |
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346 listener.flagsChanged(ret) |
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347 return ret |
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348 |
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349 else: |
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350 messages.last = self.getMessageCount() |
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351 ret = updateFlags(self.mailbox.getFlags, self.mailbox.setFlags) |
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352 newFlags = {} |
|
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353 for idx in ret: |
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354 #we have to convert idx to uid for the listeners |
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355 newFlags[self.mailbox.getUid(idx)] = ret[idx] |
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356 for listener in self.listeners: |
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357 listener.flagsChanged(newFlags) |
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358 return ret |
| 253 | 359 |
| 360 def getFlags(self): | |
| 361 """Return the flags defined in this mailbox | |
| 362 Flags with the \\ prefix are reserved for use as system flags. | |
| 363 @return: A list of the flags that can be set on messages in this mailbox. | |
| 364 """ | |
| 365 debug('getFlags') | |
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366 return ['\\SEEN', '\\ANSWERED', '\\FLAGGED', '\\DELETED', '\\DRAFT'] # TODO: add '\\RECENT' |
| 253 | 367 |
| 368 def getHierarchicalDelimiter(self): | |
| 369 """Get the character which delimits namespaces for in this mailbox. | |
| 370 """ | |
| 371 debug('getHierarchicalDelimiter') | |
| 372 return '.' | |
| 373 | |
|
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374 |
|
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375 class ImapSatAccount(imap4.MemoryAccount): |
| 253 | 376 #implements(imap4.IAccount) |
| 377 | |
|
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378 def __init__(self, host, profile): |
| 253 | 379 debug("ImapAccount init") |
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380 self.host = host |
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381 self.profile = profile |
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382 imap4.MemoryAccount.__init__(self, profile) |
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383 self.addMailbox("Inbox") # We only manage Inbox for the moment |
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384 debug('INBOX added') |
| 253 | 385 |
| 386 def _emptyMailbox(self, name, id): | |
|
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387 return SatMailbox(self.host, name, self.profile) |
| 253 | 388 |
| 389 | |
|
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390 class ImapRealm(object): |
| 253 | 391 implements(portal.IRealm) |
| 392 | |
|
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393 def __init__(self, host): |
| 253 | 394 self.host = host |
| 395 | |
| 396 def requestAvatar(self, avatarID, mind, *interfaces): | |
| 397 debug('requestAvatar') | |
|
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398 profile = avatarID.decode('utf-8') |
| 253 | 399 if imap4.IAccount not in interfaces: |
| 400 raise NotImplementedError | |
|
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401 return imap4.IAccount, ImapSatAccount(self.host, profile), lambda: None |
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402 |
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403 |
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404 class SatProfileCredentialChecker(object): |
|
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405 """ |
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406 This credential checker check against SàT's profile and associated jabber's password |
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407 Check if the profile exists, and if the password is OK |
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408 Return the profile as avatarId |
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409 """ |
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410 implements(checkers.ICredentialsChecker) |
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411 credentialInterfaces = (credentials.IUsernamePassword, |
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412 credentials.IUsernameHashedPassword) |
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413 |
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414 def __init__(self, host): |
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415 self.host = host |
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416 |
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417 def _cbPasswordMatch(self, matched, profile): |
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418 if matched: |
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419 return profile.encode('utf-8') |
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420 else: |
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421 return failure.Failure(cred_error.UnauthorizedLogin()) |
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422 |
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423 def requestAvatarId(self, credentials): |
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424 profiles = self.host.memory.getProfilesList() |
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425 if not credentials.username in profiles: |
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426 return defer.fail(cred_error.UnauthorizedLogin()) |
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427 d = self.host.memory.asyncGetParamA("Password", "Connection", profile_key=credentials.username) |
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428 d.addCallback(lambda password: credentials.checkPassword(password)) |
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429 d.addCallback(self._cbPasswordMatch, credentials.username) |
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430 return d |
| 253 | 431 |
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432 |
| 253 | 433 class ImapServerFactory(protocol.ServerFactory): |
| 434 protocol = imap4.IMAP4Server | |
| 435 | |
| 436 def __init__(self, host): | |
|
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437 self.host = host |
| 253 | 438 |
| 439 def startedConnecting(self, connector): | |
|
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440 debug(_("IMAP server connection started")) |
| 253 | 441 |
| 442 def clientConnectionLost(self, connector, reason): | |
|
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443 debug(_("IMAP server connection lost (reason: %s)"), reason) |
| 253 | 444 |
| 445 def buildProtocol(self, addr): | |
|
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Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
588
diff
changeset
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446 debug("Building protocol") |
| 253 | 447 prot = protocol.ServerFactory.buildProtocol(self, addr) |
| 448 prot.portal = portal.Portal(ImapRealm(self.host)) | |
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257
012c38b56cdd
plugin IMAP, plugin Maildir: profile management
Goffi <goffi@goffi.org>
parents:
255
diff
changeset
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449 prot.portal.registerChecker(SatProfileCredentialChecker(self.host)) |
| 253 | 450 return prot |