Mercurial > libervia-backend
annotate src/plugins/plugin_misc_maildir.py @ 618:e2c33a16d235
plugin groupblog: fixed bad inialisation check
author | Goffi <goffi@goffi.org> |
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date | Mon, 17 Jun 2013 13:30:57 +0200 |
parents | 84a6e83157c2 |
children | 9a8fbf0e8691 |
rev | line source |
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253 | 1 #!/usr/bin/python |
2 # -*- coding: utf-8 -*- | |
3 | |
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4 # SàT plugin for managing Maildir type mail boxes |
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5 # Copyright (C) 2011 Jérôme Poisson (goffi@goffi.org) |
253 | 6 |
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7 # This program is free software: you can redistribute it and/or modify |
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8 # it under the terms of the GNU Affero General Public License as published by |
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9 # the Free Software Foundation, either version 3 of the License, or |
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10 # (at your option) any later version. |
253 | 11 |
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12 # This program is distributed in the hope that it will be useful, |
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 # GNU Affero General Public License for more details. |
253 | 16 |
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17 # You should have received a copy of the GNU Affero General Public License |
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
253 | 19 |
20 from logging import debug, info, error | |
21 import warnings | |
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22 warnings.filterwarnings('ignore', 'the MimeWriter', DeprecationWarning, 'twisted') # FIXME: to be removed, see http://twistedmatrix.com/trac/ticket/4038 |
253 | 23 from twisted.internet import protocol |
24 from twisted.words.protocols.jabber import error as jab_error | |
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25 from twisted.cred import portal, checkers |
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26 from twisted.mail import imap4, maildir |
253 | 27 from email.parser import Parser |
28 import email.message | |
29 from email.charset import Charset | |
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30 import os |
253 | 31 from cStringIO import StringIO |
32 from twisted.internet import reactor | |
33 import pdb | |
471 | 34 from sat.core.exceptions import ProfileUnknownError |
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35 from sat.memory.persistent import PersistentBinaryDict |
253 | 36 |
37 from zope.interface import implements | |
38 | |
39 PLUGIN_INFO = { | |
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40 "name": "Maildir Plugin", |
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41 "import_name": "Maildir", |
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42 "type": "Misc", |
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43 "protocols": [], |
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44 "dependencies": [], |
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45 "main": "MaildirBox", |
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46 "handler": "no", |
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47 "description": _("""Intercept "normal" type messages, and put them in a Maildir type box""") |
253 | 48 } |
49 | |
50 MAILDIR_PATH = "Maildir" | |
51 | |
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52 |
253 | 53 class MaildirError(Exception): |
54 pass | |
55 | |
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56 |
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57 class MaildirBox(object): |
587
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58 |
253 | 59 def __init__(self, host): |
60 info(_("Plugin Maildir initialization")) | |
61 self.host = host | |
62 | |
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63 self.__observed = {} |
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64 self.data = {} # list of profile spectific data. key = profile, value = PersistentBinaryDict where key=mailbox name, |
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65 # and value is a dictionnary with the following value |
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66 # - cur_idx: value of the current unique integer increment (UID) |
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67 # - message_id (as returned by MaildirMailbox): a tuple of (UID, [flag1, flag2, ...]) |
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68 pList = host.memory.getProfilesList # shorter :) |
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69 self.__mailboxes = {} # key: profile, value: {boxname: MailboxUser instance} |
253 | 70 |
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71 #the triggers |
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72 host.trigger.add("MessageReceived", self.messageReceivedTrigger) |
253 | 73 |
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74 def profileConnected(self, profile): |
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75 """Called on profile connection, create profile data""" |
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76 self.data[profile] = PersistentBinaryDict("plugin_maildir", profile) |
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77 self.__mailboxes[profile] = {} |
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78 |
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79 def dataLoaded(ignore): |
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80 if not self.data[profile]: |
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81 #the mailbox is new, we initiate the data |
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82 self.data[profile]["INBOX"] = {"cur_idx": 0} |
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83 self.data[profile].load().addCallback(dataLoaded) |
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84 |
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85 def profileDisconnected(self, profile): |
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86 """Called on profile disconnection, free profile's resources""" |
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87 del self.__mailboxes[profile] |
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88 del self.data[profile] |
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89 |
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90 def messageReceivedTrigger(self, message, profile): |
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91 """This trigger catch normal message and put the in the Maildir box. |
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92 If the message is not of "normal" type, do nothing |
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93 @param message: message xmlstrem |
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94 @return: False if it's a normal message, True else""" |
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95 for e in message.elements(): |
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96 if e.name == "body": |
264 | 97 mess_type = message['type'] if message.hasAttribute('type') else 'normal' |
98 if mess_type != 'normal': | |
259
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99 return True |
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100 self.accessMessageBox("INBOX", profile_key=profile).addMessage(message) |
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101 return False |
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102 |
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103 def accessMessageBox(self, boxname, observer=None, profile_key='@DEFAULT@'): |
253 | 104 """Create and return a MailboxUser instance |
105 @param boxname: name of the box | |
106 @param observer: method to call when a NewMessage arrive""" | |
257
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107 profile = self.host.memory.getProfileName(profile_key) |
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108 if not profile: |
471 | 109 raise ProfileUnknownError(profile_key) |
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110 if boxname not in self.__mailboxes[profile]: |
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111 self.__mailboxes[profile][boxname] = MailboxUser(self, boxname, observer, profile=profile) |
253 | 112 else: |
113 if observer: | |
257
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114 self.addObserver(observer, profile, boxname) |
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115 return self.__mailboxes[profile][boxname] |
253 | 116 |
257
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117 def _getProfilePath(self, profile): |
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118 """Return a unique path for profile's mailbox |
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119 The path must be unique, usable as a dir name, and bijectional""" |
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120 return profile.replace('/', '_').replace('..', '_') # FIXME: this is too naive to work well, must be improved |
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121 |
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122 def _removeBoxAccess(self, boxname, mailboxUser, profile): |
253 | 123 """Remove a reference to a box |
124 @param name: name of the box | |
125 @param mailboxUser: MailboxUser instance""" | |
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126 if boxname not in self.__mailboxes: |
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127 err_msg = _("Trying to remove an mailboxUser not referenced") |
253 | 128 error(_("INTERNAL ERROR: ") + err_msg) |
129 raise MaildirError(err_msg) | |
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130 assert self.__mailboxes[profile][boxname] == mailboxUser |
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131 del __mailboxes[profile][boxname] |
253 | 132 |
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133 def _checkBoxReference(self, boxname, profile): |
253 | 134 """Check if there is a reference on a box, and return it |
135 @param boxname: name of the box to check | |
136 @return: MailboxUser instance or None""" | |
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137 if profile in self.__mailboxes: |
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138 if boxname in self.__mailboxes[profile]: |
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139 return self.__mailboxes[profile][boxname] |
253 | 140 |
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141 def __getBoxData(self, boxname, profile): |
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142 """Return the date of a box""" |
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143 try: |
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144 return self.data[profile][boxname] # the boxname MUST exist in the data |
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145 except KeyError: |
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146 err_msg = _("Boxname doesn't exist in internal data") |
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147 error(_("INTERNAL ERROR: ") + err_msg) |
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148 raise MaildirError(err_msg) |
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149 |
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150 def getUid(self, boxname, message_id, profile): |
254
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151 """Return an unique integer, always ascending, for a message |
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152 This is mainly needed for the IMAP protocol |
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153 @param boxname: name of the box where the message is |
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154 @param message_id: unique id of the message as given by MaildirMailbox |
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155 @return: Integer UID""" |
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156 box_data = self.__getBoxData(boxname, profile) |
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157 if message_id in box_data: |
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158 ret = box_data[message_id][0] |
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159 else: |
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160 box_data['cur_idx'] += 1 |
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161 box_data[message_id] = [box_data['cur_idx'], []] |
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162 ret = box_data[message_id] |
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163 self.data[profile].force(boxname) |
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164 return ret |
253 | 165 |
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166 def getNextUid(self, boxname, profile): |
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167 """Return next unique integer that will generated |
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168 This is mainly needed for the IMAP protocol |
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169 @param boxname: name of the box where the message is |
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170 @return: Integer UID""" |
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171 box_data = self.__getBoxData(boxname, profile) |
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172 return box_data['cur_idx'] + 1 |
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173 |
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174 def getNextExistingUid(self, boxname, uid, profile): |
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175 """Give the next uid of existing message |
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176 @param boxname: name of the box where the message is |
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177 @param uid: uid to start from |
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178 @return: uid or None if the is no more message""" |
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179 box_data = self.__getBoxData(boxname, profile) |
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180 idx = uid + 1 |
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181 while self.getIdFromUid(boxname, idx, profile) is None: # TODO: this is highly inefficient because getIdfromUid is inefficient, fix this |
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182 idx += 1 |
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183 if idx > box_data['cur_idx']: |
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184 return None |
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185 return idx |
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186 |
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187 def getMaxUid(self, boxname, profile): |
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188 """Give the max existing uid |
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189 @param boxname: name of the box where the message is |
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190 @return: uid""" |
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191 box_data = self.__getBoxData(boxname, profile) |
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192 return box_data['cur_idx'] |
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193 |
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194 def getIdFromUid(self, boxname, message_uid, profile): |
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195 """Return the message unique id from it's integer UID |
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196 @param boxname: name of the box where the message is |
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197 @param message_uid: unique integer identifier |
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198 @return: unique id of the message as given by MaildirMailbox or None if not found""" |
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199 box_data = self.__getBoxData(boxname, profile) |
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200 for message_id in box_data.keys(): # TODO: this is highly inefficient on big mailbox, must be replaced in the future |
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201 if message_id == 'cur_idx': |
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202 continue |
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203 if box_data[message_id][0] == message_uid: |
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204 return message_id |
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205 return None |
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206 |
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207 def getFlags(self, boxname, mess_id, profile): |
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208 """Return the messages flags |
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209 @param boxname: name of the box where the message is |
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210 @param message_idx: message id as given by MaildirMailbox |
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211 @return: list of strings""" |
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212 box_data = self.__getBoxData(boxname, profile) |
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213 if mess_id not in box_data: |
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214 raise MailboxException("Trying to get flags from an unexisting message") |
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215 return box_data[mess_id][1] |
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216 |
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217 def setFlags(self, boxname, mess_id, flags, profile): |
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218 """Change the flags of the message |
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219 @param boxname: name of the box where the message is |
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220 @param message_idx: message id as given by MaildirMailbox |
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221 @param flags: list of strings |
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222 """ |
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223 box_data = self.__getBoxData(boxname, profile) |
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224 assert(type(flags) == list) |
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225 flags = [flag.upper() for flag in flags] # we store every flag UPPERCASE |
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226 if mess_id not in box_data: |
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227 raise MailboxException("Trying to set flags for an unexisting message") |
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228 box_data[mess_id][1] = flags |
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229 self.data[profile].force(boxname) |
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230 |
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231 def getMessageIdsWithFlag(self, boxname, flag, profile): |
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232 """Return ids of messages where a flag is set |
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233 @param boxname: name of the box where the message is |
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234 @param flag: flag to check |
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235 @return: list of id (as given by MaildirMailbox)""" |
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236 box_data = self.__getBoxData(boxname, profile) |
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237 assert(isinstance(flag, basestring)) |
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238 flag = flag.upper() |
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239 result = [] |
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240 for key in box_data: |
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241 if key == 'cur_idx': |
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242 continue |
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243 if flag in box_data[key][1]: |
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244 result.append(key) |
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245 return result |
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246 |
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247 def purgeDeleted(self, boxname, profile): |
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248 """Remove data for messages with flag "\\Deleted" |
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249 @param boxname: name of the box where the message is |
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250 """ |
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251 box_data = self.__getBoxData(boxname, profile) |
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252 for mess_id in self.getMessageIdsWithFlag(boxname, "\\Deleted", profile): |
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253 del(box_data[mess_id]) |
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254 self.data[profile].force(boxname) |
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255 |
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256 def cleanTable(self, boxname, existant_id, profile): |
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257 """Remove mails which no longuer exist from the table |
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258 @param boxname: name of the box to clean |
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259 @param existant_id: list of id which actually exist""" |
257
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260 box_data = self.__getBoxData(boxname, profile) |
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261 to_remove = [] |
254
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262 for key in box_data: |
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263 if key not in existant_id and key != "cur_idx": |
254
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264 to_remove.append(key) |
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265 for key in to_remove: |
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266 del box_data[key] |
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267 |
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268 def addObserver(self, callback, profile, boxname, signal="NEW_MESSAGE"): |
253 | 269 """Add an observer for maildir box changes |
270 @param callback: method to call when the the box is updated | |
271 @param boxname: name of the box to observe | |
272 @param signal: which signal is observed by the caller""" | |
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273 if (profile, boxname) not in self.__observed: |
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274 self.__observed[(profile, boxname)] = {} |
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275 if signal not in self.__observed[(profile, boxname)]: |
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276 self.__observed[(profile, boxname)][signal] = set() |
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277 self.__observed[(profile, boxname)][signal].add(callback) |
253 | 278 |
257
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279 def removeObserver(self, callback, profile, boxname, signal="NEW_MESSAGE"): |
253 | 280 """Remove an observer of maildir box changes |
281 @param callback: method to remove from obervers | |
282 @param boxname: name of the box which was observed | |
283 @param signal: which signal was observed by the caller""" | |
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284 if (profile, boxname) not in self.__observed: |
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285 err_msg = _("Trying to remove an observer for an inexistant mailbox") |
253 | 286 error(_("INTERNAL ERROR: ") + err_msg) |
287 raise MaildirError(err_msg) | |
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288 if signal not in self.__observed[(profile, boxname)]: |
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289 err_msg = _("Trying to remove an inexistant observer, no observer for this signal") |
253 | 290 error(_("INTERNAL ERROR: ") + err_msg) |
291 raise MaildirError(err_msg) | |
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292 if not callback in self.__observed[(profile, boxname)][signal]: |
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293 err_msg = _("Trying to remove an inexistant observer") |
253 | 294 error(_("INTERNAL ERROR: ") + err_msg) |
295 raise MaildirError(err_msg) | |
594
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296 self.__observed[(profile, boxname)][signal].remove(callback) |
253 | 297 |
257
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298 def emitSignal(self, profile, boxname, signal_name): |
253 | 299 """Emit the signal to observer""" |
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300 debug('emitSignal %s %s %s' % (profile, boxname, signal_name)) |
253 | 301 try: |
257
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302 for observer_cb in self.__observed[(profile, boxname)][signal_name]: |
253 | 303 observer_cb() |
304 except KeyError: | |
305 pass | |
306 | |
307 | |
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308 class MailboxUser(object): |
253 | 309 """This class is used to access a mailbox""" |
310 | |
311 def xmppMessage2mail(self, message): | |
312 """Convert the XMPP's XML message to a basic rfc2822 message | |
313 @param xml: domish.Element of the message | |
314 @return: string email""" | |
315 mail = email.message.Message() | |
316 mail['MIME-Version'] = "1.0" | |
317 mail['Content-Type'] = "text/plain; charset=UTF-8; format=flowed" | |
318 mail['Content-Transfer-Encoding'] = "8bit" | |
319 mail['From'] = message['from'].encode('utf-8') | |
320 mail['To'] = message['to'].encode('utf-8') | |
321 mail['Date'] = email.utils.formatdate().encode('utf-8') | |
322 #TODO: save thread id | |
323 for e in message.elements(): | |
324 if e.name == "body": | |
325 mail.set_payload(e.children[0].encode('utf-8')) | |
326 elif e.name == "subject": | |
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327 mail['Subject'] = e.children[0].encode('utf-8') |
253 | 328 return mail.as_string() |
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329 |
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330 def __init__(self, _maildir, name, observer=None, profile="@NONE@"): |
253 | 331 """@param _maildir: the main MaildirBox instance |
332 @param name: name of the mailbox | |
257
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333 @param profile: real profile (ie not a profile_key) |
253 | 334 THIS OBJECT MUST NOT BE USED DIRECTLY: use MaildirBox.accessMessageBox instead""" |
257
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335 if _maildir._checkBoxReference(name, profile): |
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336 error("INTERNAL ERROR: MailboxUser MUST NOT be instancied directly") |
253 | 337 raise MailboxException('double MailboxUser instanciation') |
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338 if name != "INBOX": |
253 | 339 raise NotImplementedError |
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340 self.name = name |
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341 self.profile = profile |
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342 self.maildir = _maildir |
257
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343 profile_path = self.maildir._getProfilePath(profile) |
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344 full_profile_path = os.path.join(self.maildir.host.memory.getConfig('', 'local_dir'), profile_path) |
257
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345 if not os.path.exists(full_profile_path): |
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346 os.makedirs(full_profile_path, 0700) |
257
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347 mailbox_path = os.path.join(full_profile_path, MAILDIR_PATH) |
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348 self.mailbox_path = mailbox_path |
253 | 349 self.mailbox = maildir.MaildirMailbox(mailbox_path) |
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350 self.observer = observer |
254
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351 self.__uid_table_update() |
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352 |
253 | 353 if observer: |
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354 debug("adding observer for %s (%s)" % (name, profile)) |
257
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355 self.maildir.addObserver(observer, profile, name, "NEW_MESSAGE") |
253 | 356 |
254
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357 def __uid_table_update(self): |
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358 existant_id = [] |
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359 for mess_idx in range(self.getMessageCount()): |
254
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360 #we update the uid table |
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361 existant_id.append(self.getId(mess_idx)) |
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362 self.getUid(mess_idx) |
257
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363 self.maildir.cleanTable(self.name, existant_id, profile=self.profile) |
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364 |
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365 def __del__(self): |
253 | 366 if observer: |
367 debug("removing observer for %s" % self.name) | |
368 self._maildir.removeObserver(observer, self.name, "NEW_MESSAGE") | |
257
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369 self.maildir._removeBoxAccess(self.name, self, profile=self.profile) |
253 | 370 |
371 def addMessage(self, message): | |
372 """Add a message to the box | |
373 @param message: XMPP XML message""" | |
374 self.mailbox.appendMessage(self.xmppMessage2mail(message)).addCallback(self.emitSignal, "NEW_MESSAGE") | |
375 | |
376 def emitSignal(self, ignore, signal): | |
377 """Emit the signal to the observers""" | |
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378 if signal == "NEW_MESSAGE": |
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379 self.getUid(self.getMessageCount() - 1) # XXX: we make an uid for the last message added |
257
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380 self.maildir.emitSignal(self.profile, self.name, signal) |
253 | 381 |
382 def getId(self, mess_idx): | |
383 """Return the Unique ID of the message | |
384 @mess_idx: message index""" | |
385 return self.mailbox.getUidl(mess_idx) | |
386 | |
254
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387 def getUid(self, mess_idx): |
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388 """Return a unique interger id for the message, always ascending""" |
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389 mess_id = self.getId(mess_idx) |
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390 return self.maildir.getUid(self.name, mess_id, profile=self.profile) |
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391 |
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392 def getNextUid(self): |
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393 return self.maildir.getNextUid(self.name, profile=self.profile) |
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394 |
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395 def getNextExistingUid(self, uid): |
257
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396 return self.maildir.getNextExistingUid(self.name, uid, profile=self.profile) |
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397 |
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398 def getMaxUid(self): |
257
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399 return self.maildir.getMaxUid(self.name, profile=self.profile) |
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400 |
253 | 401 def getMessageCount(self): |
402 """Return number of mails present in this box""" | |
254
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403 return len(self.mailbox.list) |
253 | 404 |
254
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405 def getMessageIdx(self, mess_idx): |
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406 """Return the full message |
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407 @mess_idx: message index""" |
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408 return self.mailbox.getMessage(mess_idx) |
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409 |
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410 def getIdxFromUid(self, mess_uid): |
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411 """Return the message index from the uid |
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412 @param mess_uid: message unique identifier |
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413 @return: message index, as managed by MaildirMailbox""" |
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414 for mess_idx in range(self.getMessageCount()): |
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415 if self.getUid(mess_idx) == mess_uid: |
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416 return mess_idx |
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417 raise IndexError |
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418 |
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419 def getIdxFromId(self, mess_id): |
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420 """Return the message index from the unique index |
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421 @param mess_id: message unique index as given by MaildirMailbox |
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422 @return: message sequence index""" |
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423 for mess_idx in range(self.getMessageCount()): |
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424 if self.mailbox.getUidl(mess_idx) == mess_id: |
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425 return mess_idx |
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426 raise IndexError |
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427 |
253 | 428 def getMessage(self, mess_idx): |
429 """Return the full message | |
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430 @param mess_idx: message index""" |
253 | 431 return self.mailbox.getMessage(mess_idx) |
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432 |
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433 def getMessageUid(self, mess_uid): |
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434 """Return the full message |
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435 @param mess_idx: message unique identifier""" |
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436 return self.mailbox.getMessage(self.getIdxFromUid(mess_uid)) |
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437 |
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438 def getFlags(self, mess_idx): |
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439 """Return the flags of the message |
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440 @param mess_idx: message index |
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441 @return: list of strings""" |
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442 id = self.getId(mess_idx) |
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443 return self.maildir.getFlags(self.name, id, profile=self.profile) |
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444 |
255
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445 def getFlagsUid(self, mess_uid): |
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446 """Return the flags of the message |
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447 @param mess_uid: message unique identifier |
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448 @return: list of strings""" |
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449 id = self.maildir.getIdFromUid(self.name, mess_uid, profile=self.profile) |
257
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450 return self.maildir.getFlags(self.name, id, profile=self.profile) |
255
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451 |
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452 def setFlags(self, mess_idx, flags): |
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453 """Change the flags of the message |
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454 @param mess_idx: message index |
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455 @param flags: list of strings |
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456 """ |
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457 id = self.getId(mess_idx) |
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458 self.maildir.setFlags(self.name, id, flags, profile=self.profile) |
255
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459 |
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460 def setFlagsUid(self, mess_uid, flags): |
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461 """Change the flags of the message |
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462 @param mess_uid: message unique identifier |
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463 @param flags: list of strings |
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464 """ |
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465 id = self.maildir.getIdFromUid(self.name, mess_uid, profile=self.profile) |
257
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466 return self.maildir.setFlags(self.name, id, flags, profile=self.profile) |
255
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467 |
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468 def getMessageIdsWithFlag(self, flag): |
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469 """Return ids of messages where a flag is set |
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470 @param flag: flag to check |
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471 @return: list of id (as given by MaildirMailbox)""" |
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472 return self.maildir.getMessageIdsWithFlag(self.name, flag, profile=self.profile) |
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473 |
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474 def removeDeleted(self): |
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475 """Actually delete message flagged "\\Deleted" |
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476 Also purge the internal data of these messages |
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477 """ |
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478 for mess_id in self.getMessageIdsWithFlag("\\Deleted"): |
338 | 479 print ("Deleting %s" % mess_id) |
255
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480 self.mailbox.deleteMessage(self.getIdxFromId(mess_id)) |
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481 self.mailbox = maildir.MaildirMailbox(self.mailbox_path) # We need to reparse the dir to have coherent indexing |
257
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482 self.maildir.purgeDeleted(self.name, profile=self.profile) |
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483 |
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484 def emptyTrash(self): |
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485 """Delete everything in the .Trash dir""" |
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486 import shutils |
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487 pdb.set_trace() |