Mercurial > libervia-backend
annotate src/plugins/plugin_misc_maildir.py @ 1862:6d9c87bdc452
jp (base): added a CommandBase.start method which is called by run or connected, so subclasses can implement it (this is for simplicity sake, as it's not always clear if run or connected must be used)
author | Goffi <goffi@goffi.org> |
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date | Mon, 29 Feb 2016 16:52:51 +0100 |
parents | 7a8a19e4fa6c |
children | 2daf7b4c6756 |
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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 |
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20 from sat.core.i18n import D_, _ |
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21 from sat.core.constants import Const as C |
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22 from sat.core.log import getLogger |
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23 log = getLogger(__name__) |
253 | 24 import warnings |
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25 warnings.filterwarnings('ignore', 'the MimeWriter', DeprecationWarning, 'twisted') # FIXME: to be removed, see http://twistedmatrix.com/trac/ticket/4038 |
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26 from twisted.mail import maildir |
253 | 27 import email.message |
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28 import email.utils |
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29 import os |
471 | 30 from sat.core.exceptions import ProfileUnknownError |
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31 from sat.memory.persistent import PersistentBinaryDict |
253 | 32 |
33 | |
34 PLUGIN_INFO = { | |
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35 "name": "Maildir Plugin", |
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36 "import_name": "Maildir", |
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37 "type": "Misc", |
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38 "protocols": [], |
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39 "dependencies": [], |
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40 "main": "MaildirBox", |
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41 "handler": "no", |
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42 "description": _("""Intercept "normal" type messages, and put them in a Maildir type box""") |
253 | 43 } |
44 | |
45 MAILDIR_PATH = "Maildir" | |
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46 CATEGORY = D_("Mail Server") |
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47 NAME = D_('Block "normal" messages propagation') |
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48 # FIXME: (very) old and (very) experimental code, need a big cleaning/review |
253 | 49 |
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50 |
253 | 51 class MaildirError(Exception): |
52 pass | |
53 | |
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54 |
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55 class MaildirBox(object): |
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56 params = """ |
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57 <params> |
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58 <individual> |
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59 <category name='{category_name}' label='{category_label}'> |
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60 <param name='{name}' label='{label}' value="false" type="bool" security="4" /> |
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61 </category> |
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62 </individual> |
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63 </params> |
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64 """.format(category_name=CATEGORY, |
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65 category_label=_(CATEGORY), |
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66 name=NAME, |
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67 label=_(NAME), |
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68 ) |
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69 |
253 | 70 def __init__(self, host): |
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71 log.info(_("Plugin Maildir initialization")) |
253 | 72 self.host = host |
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73 host.memory.updateParams(self.params) |
253 | 74 |
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75 self.__observed = {} |
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76 self.data = {} # list of profile spectific data. key = profile, value = PersistentBinaryDict where key=mailbox name, |
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77 # and value is a dictionnary with the following value |
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78 # - cur_idx: value of the current unique integer increment (UID) |
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79 # - message_id (as returned by MaildirMailbox): a tuple of (UID, [flag1, flag2, ...]) |
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80 self.__mailboxes = {} # key: profile, value: {boxname: MailboxUser instance} |
253 | 81 |
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82 #the triggers |
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83 host.trigger.add("MessageReceived", self.messageReceivedTrigger) |
253 | 84 |
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85 def profileConnected(self, profile): |
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86 """Called on profile connection, create profile data""" |
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87 self.data[profile] = PersistentBinaryDict("plugin_maildir", profile) |
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88 self.__mailboxes[profile] = {} |
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89 |
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90 def dataLoaded(ignore): |
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91 if not self.data[profile]: |
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92 #the mailbox is new, we initiate the data |
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93 self.data[profile]["INBOX"] = {"cur_idx": 0} |
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94 self.data[profile].load().addCallback(dataLoaded) |
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95 |
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96 def profileDisconnected(self, profile): |
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97 """Called on profile disconnection, free profile's resources""" |
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98 del self.__mailboxes[profile] |
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99 del self.data[profile] |
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100 |
663 | 101 def messageReceivedTrigger(self, message, post_treat, profile): |
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102 """This trigger catch normal message and put the in the Maildir box. |
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103 If the message is not of "normal" type, do nothing |
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104 @param message: message xmlstrem |
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105 @return: False if it's a normal message, True else""" |
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106 for e in message.elements(): |
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107 if e.name == "body": |
264 | 108 mess_type = message['type'] if message.hasAttribute('type') else 'normal' |
109 if mess_type != 'normal': | |
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110 return True |
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111 self.accessMessageBox("INBOX", profile_key=profile).addMessage(message) |
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112 return not self.host.memory.getParamA(NAME, CATEGORY, profile_key=profile) |
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113 |
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114 def accessMessageBox(self, boxname, observer=None, profile_key=C.PROF_KEY_NONE): |
253 | 115 """Create and return a MailboxUser instance |
116 @param boxname: name of the box | |
117 @param observer: method to call when a NewMessage arrive""" | |
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118 profile = self.host.memory.getProfileName(profile_key) |
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119 if not profile: |
471 | 120 raise ProfileUnknownError(profile_key) |
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121 if boxname not in self.__mailboxes[profile]: |
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122 self.__mailboxes[profile][boxname] = MailboxUser(self, boxname, observer, profile=profile) |
253 | 123 else: |
124 if observer: | |
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125 self.addObserver(observer, profile, boxname) |
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126 return self.__mailboxes[profile][boxname] |
253 | 127 |
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128 def _getProfilePath(self, profile): |
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129 """Return a unique path for profile's mailbox |
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130 The path must be unique, usable as a dir name, and bijectional""" |
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131 return profile.replace('/', '_').replace('..', '_') # FIXME: this is too naive to work well, must be improved |
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132 |
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133 def _removeBoxAccess(self, boxname, mailboxUser, profile): |
253 | 134 """Remove a reference to a box |
135 @param name: name of the box | |
136 @param mailboxUser: MailboxUser instance""" | |
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137 if boxname not in self.__mailboxes: |
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138 err_msg = _("Trying to remove an mailboxUser not referenced") |
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139 log.error(_(u"INTERNAL ERROR: ") + err_msg) |
253 | 140 raise MaildirError(err_msg) |
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141 assert self.__mailboxes[profile][boxname] == mailboxUser |
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142 del self.__mailboxes[profile][boxname] |
253 | 143 |
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144 def _checkBoxReference(self, boxname, profile): |
253 | 145 """Check if there is a reference on a box, and return it |
146 @param boxname: name of the box to check | |
147 @return: MailboxUser instance or None""" | |
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148 if profile in self.__mailboxes: |
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149 if boxname in self.__mailboxes[profile]: |
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150 return self.__mailboxes[profile][boxname] |
253 | 151 |
257
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152 def __getBoxData(self, boxname, profile): |
255
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153 """Return the date of a box""" |
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154 try: |
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155 return self.data[profile][boxname] # the boxname MUST exist in the data |
255
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156 except KeyError: |
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157 err_msg = _("Boxname doesn't exist in internal data") |
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158 log.error(_(u"INTERNAL ERROR: ") + err_msg) |
255
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159 raise MaildirError(err_msg) |
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160 |
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161 def getUid(self, boxname, message_id, profile): |
254
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162 """Return an unique integer, always ascending, for a message |
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163 This is mainly needed for the IMAP protocol |
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164 @param boxname: name of the box where the message is |
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165 @param message_id: unique id of the message as given by MaildirMailbox |
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166 @return: Integer UID""" |
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167 box_data = self.__getBoxData(boxname, profile) |
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168 if message_id in box_data: |
254
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169 ret = box_data[message_id][0] |
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170 else: |
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171 box_data['cur_idx'] += 1 |
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172 box_data[message_id] = [box_data['cur_idx'], []] |
254
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173 ret = box_data[message_id] |
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174 self.data[profile].force(boxname) |
254
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175 return ret |
253 | 176 |
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177 def getNextUid(self, boxname, profile): |
254
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178 """Return next unique integer that will generated |
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179 This is mainly needed for the IMAP protocol |
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180 @param boxname: name of the box where the message is |
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181 @return: Integer UID""" |
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182 box_data = self.__getBoxData(boxname, profile) |
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183 return box_data['cur_idx'] + 1 |
254
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184 |
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185 def getNextExistingUid(self, boxname, uid, profile): |
254
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186 """Give the next uid of existing message |
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187 @param boxname: name of the box where the message is |
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188 @param uid: uid to start from |
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189 @return: uid or None if the is no more message""" |
257
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190 box_data = self.__getBoxData(boxname, profile) |
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191 idx = uid + 1 |
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192 while self.getIdFromUid(boxname, idx, profile) is None: # TODO: this is highly inefficient because getIdfromUid is inefficient, fix this |
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193 idx += 1 |
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194 if idx > box_data['cur_idx']: |
254
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195 return None |
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196 return idx |
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197 |
257
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198 def getMaxUid(self, boxname, profile): |
254
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199 """Give the max existing uid |
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200 @param boxname: name of the box where the message is |
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201 @return: uid""" |
257
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202 box_data = self.__getBoxData(boxname, profile) |
254
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203 return box_data['cur_idx'] |
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204 |
257
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205 def getIdFromUid(self, boxname, message_uid, profile): |
254
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206 """Return the message unique id from it's integer UID |
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207 @param boxname: name of the box where the message is |
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208 @param message_uid: unique integer identifier |
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209 @return: unique id of the message as given by MaildirMailbox or None if not found""" |
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210 box_data = self.__getBoxData(boxname, profile) |
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211 for message_id in box_data.keys(): # TODO: this is highly inefficient on big mailbox, must be replaced in the future |
254
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212 if message_id == 'cur_idx': |
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213 continue |
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214 if box_data[message_id][0] == message_uid: |
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215 return message_id |
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216 return None |
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217 |
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218 def getFlags(self, boxname, mess_id, profile): |
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219 """Return the messages flags |
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220 @param boxname: name of the box where the message is |
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221 @param message_idx: message id as given by MaildirMailbox |
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222 @return: list of strings""" |
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223 box_data = self.__getBoxData(boxname, profile) |
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224 if mess_id not in box_data: |
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225 raise MaildirError("Trying to get flags from an unexisting message") |
255
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226 return box_data[mess_id][1] |
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227 |
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228 def setFlags(self, boxname, mess_id, flags, profile): |
255
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229 """Change the flags of the message |
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230 @param boxname: name of the box where the message is |
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231 @param message_idx: message id as given by MaildirMailbox |
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232 @param flags: list of strings |
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233 """ |
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234 box_data = self.__getBoxData(boxname, profile) |
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235 assert(type(flags) == list) |
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236 flags = [flag.upper() for flag in flags] # we store every flag UPPERCASE |
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237 if mess_id not in box_data: |
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238 raise MaildirError("Trying to set flags for an unexisting message") |
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239 box_data[mess_id][1] = flags |
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240 self.data[profile].force(boxname) |
255
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241 |
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242 def getMessageIdsWithFlag(self, boxname, flag, profile): |
255
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243 """Return ids of messages where a flag is set |
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244 @param boxname: name of the box where the message is |
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245 @param flag: flag to check |
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246 @return: list of id (as given by MaildirMailbox)""" |
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247 box_data = self.__getBoxData(boxname, profile) |
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248 assert(isinstance(flag, basestring)) |
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249 flag = flag.upper() |
255
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250 result = [] |
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251 for key in box_data: |
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252 if key == 'cur_idx': |
255
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253 continue |
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254 if flag in box_data[key][1]: |
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255 result.append(key) |
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256 return result |
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257 |
257
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258 def purgeDeleted(self, boxname, profile): |
255
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259 """Remove data for messages with flag "\\Deleted" |
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260 @param boxname: name of the box where the message is |
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261 """ |
257
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262 box_data = self.__getBoxData(boxname, profile) |
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263 for mess_id in self.getMessageIdsWithFlag(boxname, "\\Deleted", profile): |
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264 del(box_data[mess_id]) |
445
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265 self.data[profile].force(boxname) |
587
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266 |
257
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267 def cleanTable(self, boxname, existant_id, profile): |
254
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268 """Remove mails which no longuer exist from the table |
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269 @param boxname: name of the box to clean |
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270 @param existant_id: list of id which actually exist""" |
257
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271 box_data = self.__getBoxData(boxname, profile) |
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272 to_remove = [] |
254
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273 for key in box_data: |
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274 if key not in existant_id and key != "cur_idx": |
254
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275 to_remove.append(key) |
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276 for key in to_remove: |
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277 del box_data[key] |
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278 |
257
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279 def addObserver(self, callback, profile, boxname, signal="NEW_MESSAGE"): |
253 | 280 """Add an observer for maildir box changes |
281 @param callback: method to call when the the box is updated | |
282 @param boxname: name of the box to observe | |
283 @param signal: which signal is observed by the caller""" | |
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284 if (profile, boxname) not in self.__observed: |
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285 self.__observed[(profile, boxname)] = {} |
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286 if signal not in self.__observed[(profile, boxname)]: |
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287 self.__observed[(profile, boxname)][signal] = set() |
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288 self.__observed[(profile, boxname)][signal].add(callback) |
253 | 289 |
257
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290 def removeObserver(self, callback, profile, boxname, signal="NEW_MESSAGE"): |
253 | 291 """Remove an observer of maildir box changes |
292 @param callback: method to remove from obervers | |
293 @param boxname: name of the box which was observed | |
294 @param signal: which signal was observed by the caller""" | |
594
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295 if (profile, boxname) not in self.__observed: |
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296 err_msg = _(u"Trying to remove an observer for an inexistant mailbox") |
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297 log.error(_(u"INTERNAL ERROR: ") + err_msg) |
253 | 298 raise MaildirError(err_msg) |
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299 if signal not in self.__observed[(profile, boxname)]: |
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300 err_msg = _(u"Trying to remove an inexistant observer, no observer for this signal") |
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301 log.error(_(u"INTERNAL ERROR: ") + err_msg) |
253 | 302 raise MaildirError(err_msg) |
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303 if not callback in self.__observed[(profile, boxname)][signal]: |
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304 err_msg = _(u"Trying to remove an inexistant observer") |
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305 log.error(_(u"INTERNAL ERROR: ") + err_msg) |
253 | 306 raise MaildirError(err_msg) |
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307 self.__observed[(profile, boxname)][signal].remove(callback) |
253 | 308 |
257
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309 def emitSignal(self, profile, boxname, signal_name): |
253 | 310 """Emit the signal to observer""" |
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311 log.debug(u'emitSignal %s %s %s' % (profile, boxname, signal_name)) |
253 | 312 try: |
257
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313 for observer_cb in self.__observed[(profile, boxname)][signal_name]: |
253 | 314 observer_cb() |
315 except KeyError: | |
316 pass | |
317 | |
318 | |
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319 class MailboxUser(object): |
253 | 320 """This class is used to access a mailbox""" |
321 | |
322 def xmppMessage2mail(self, message): | |
323 """Convert the XMPP's XML message to a basic rfc2822 message | |
324 @param xml: domish.Element of the message | |
325 @return: string email""" | |
326 mail = email.message.Message() | |
327 mail['MIME-Version'] = "1.0" | |
328 mail['Content-Type'] = "text/plain; charset=UTF-8; format=flowed" | |
329 mail['Content-Transfer-Encoding'] = "8bit" | |
330 mail['From'] = message['from'].encode('utf-8') | |
331 mail['To'] = message['to'].encode('utf-8') | |
332 mail['Date'] = email.utils.formatdate().encode('utf-8') | |
333 #TODO: save thread id | |
334 for e in message.elements(): | |
335 if e.name == "body": | |
336 mail.set_payload(e.children[0].encode('utf-8')) | |
337 elif e.name == "subject": | |
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338 mail['Subject'] = e.children[0].encode('utf-8') |
253 | 339 return mail.as_string() |
587
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340 |
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341 def __init__(self, _maildir, name, observer=None, profile=C.PROF_KEY_NONE): |
253 | 342 """@param _maildir: the main MaildirBox instance |
343 @param name: name of the mailbox | |
257
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344 @param profile: real profile (ie not a profile_key) |
253 | 345 THIS OBJECT MUST NOT BE USED DIRECTLY: use MaildirBox.accessMessageBox instead""" |
257
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346 if _maildir._checkBoxReference(name, profile): |
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347 log.error(u"INTERNAL ERROR: MailboxUser MUST NOT be instancied directly") |
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348 raise MaildirError('double MailboxUser instanciation') |
594
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349 if name != "INBOX": |
253 | 350 raise NotImplementedError |
594
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351 self.name = name |
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352 self.profile = profile |
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353 self.maildir = _maildir |
257
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354 profile_path = self.maildir._getProfilePath(profile) |
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355 full_profile_path = os.path.join(self.maildir.host.memory.getConfig('', 'local_dir'), 'maildir', profile_path) |
257
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356 if not os.path.exists(full_profile_path): |
594
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357 os.makedirs(full_profile_path, 0700) |
257
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358 mailbox_path = os.path.join(full_profile_path, MAILDIR_PATH) |
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359 self.mailbox_path = mailbox_path |
253 | 360 self.mailbox = maildir.MaildirMailbox(mailbox_path) |
594
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361 self.observer = observer |
254
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362 self.__uid_table_update() |
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363 |
253 | 364 if observer: |
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365 log.debug(u"adding observer for %s (%s)" % (name, profile)) |
257
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366 self.maildir.addObserver(observer, profile, name, "NEW_MESSAGE") |
253 | 367 |
254
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368 def __uid_table_update(self): |
594
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369 existant_id = [] |
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370 for mess_idx in range(self.getMessageCount()): |
254
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371 #we update the uid table |
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372 existant_id.append(self.getId(mess_idx)) |
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373 self.getUid(mess_idx) |
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374 self.maildir.cleanTable(self.name, existant_id, profile=self.profile) |
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375 |
255
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376 def __del__(self): |
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377 if self.observer: |
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378 log.debug(u"removing observer for %s" % self.name) |
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379 self._maildir.removeObserver(self.observer, self.name, "NEW_MESSAGE") |
257
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380 self.maildir._removeBoxAccess(self.name, self, profile=self.profile) |
253 | 381 |
382 def addMessage(self, message): | |
383 """Add a message to the box | |
384 @param message: XMPP XML message""" | |
385 self.mailbox.appendMessage(self.xmppMessage2mail(message)).addCallback(self.emitSignal, "NEW_MESSAGE") | |
386 | |
387 def emitSignal(self, ignore, signal): | |
388 """Emit the signal to the observers""" | |
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389 if signal == "NEW_MESSAGE": |
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390 self.getUid(self.getMessageCount() - 1) # XXX: we make an uid for the last message added |
257
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391 self.maildir.emitSignal(self.profile, self.name, signal) |
253 | 392 |
393 def getId(self, mess_idx): | |
394 """Return the Unique ID of the message | |
395 @mess_idx: message index""" | |
396 return self.mailbox.getUidl(mess_idx) | |
397 | |
254
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398 def getUid(self, mess_idx): |
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399 """Return a unique interger id for the message, always ascending""" |
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400 mess_id = self.getId(mess_idx) |
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401 return self.maildir.getUid(self.name, mess_id, profile=self.profile) |
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402 |
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403 def getNextUid(self): |
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404 return self.maildir.getNextUid(self.name, profile=self.profile) |
254
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405 |
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406 def getNextExistingUid(self, uid): |
257
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407 return self.maildir.getNextExistingUid(self.name, uid, profile=self.profile) |
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408 |
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409 def getMaxUid(self): |
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410 return self.maildir.getMaxUid(self.name, profile=self.profile) |
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411 |
253 | 412 def getMessageCount(self): |
413 """Return number of mails present in this box""" | |
254
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414 return len(self.mailbox.list) |
253 | 415 |
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416 def getMessageIdx(self, mess_idx): |
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417 """Return the full message |
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418 @mess_idx: message index""" |
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419 return self.mailbox.getMessage(mess_idx) |
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420 |
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421 def getIdxFromUid(self, mess_uid): |
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422 """Return the message index from the uid |
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423 @param mess_uid: message unique identifier |
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424 @return: message index, as managed by MaildirMailbox""" |
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425 for mess_idx in range(self.getMessageCount()): |
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426 if self.getUid(mess_idx) == mess_uid: |
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427 return mess_idx |
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428 raise IndexError |
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429 |
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430 def getIdxFromId(self, mess_id): |
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431 """Return the message index from the unique index |
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432 @param mess_id: message unique index as given by MaildirMailbox |
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433 @return: message sequence index""" |
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434 for mess_idx in range(self.getMessageCount()): |
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435 if self.mailbox.getUidl(mess_idx) == mess_id: |
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436 return mess_idx |
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437 raise IndexError |
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438 |
253 | 439 def getMessage(self, mess_idx): |
440 """Return the full message | |
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441 @param mess_idx: message index""" |
253 | 442 return self.mailbox.getMessage(mess_idx) |
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443 |
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444 def getMessageUid(self, mess_uid): |
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445 """Return the full message |
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446 @param mess_idx: message unique identifier""" |
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447 return self.mailbox.getMessage(self.getIdxFromUid(mess_uid)) |
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448 |
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449 def getFlags(self, mess_idx): |
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450 """Return the flags of the message |
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451 @param mess_idx: message index |
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452 @return: list of strings""" |
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453 id = self.getId(mess_idx) |
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454 return self.maildir.getFlags(self.name, id, profile=self.profile) |
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455 |
255
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456 def getFlagsUid(self, mess_uid): |
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457 """Return the flags of the message |
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458 @param mess_uid: message unique identifier |
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459 @return: list of strings""" |
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460 id = self.maildir.getIdFromUid(self.name, mess_uid, profile=self.profile) |
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461 return self.maildir.getFlags(self.name, id, profile=self.profile) |
255
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462 |
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463 def setFlags(self, mess_idx, flags): |
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464 """Change the flags of the message |
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465 @param mess_idx: message index |
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466 @param flags: list of strings |
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467 """ |
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468 id = self.getId(mess_idx) |
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469 self.maildir.setFlags(self.name, id, flags, profile=self.profile) |
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470 |
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471 def setFlagsUid(self, mess_uid, flags): |
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472 """Change the flags of the message |
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473 @param mess_uid: message unique identifier |
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474 @param flags: list of strings |
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475 """ |
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476 id = self.maildir.getIdFromUid(self.name, mess_uid, profile=self.profile) |
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477 return self.maildir.setFlags(self.name, id, flags, profile=self.profile) |
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478 |
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479 def getMessageIdsWithFlag(self, flag): |
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480 """Return ids of messages where a flag is set |
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481 @param flag: flag to check |
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482 @return: list of id (as given by MaildirMailbox)""" |
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483 return self.maildir.getMessageIdsWithFlag(self.name, flag, profile=self.profile) |
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484 |
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485 def removeDeleted(self): |
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486 """Actually delete message flagged "\\Deleted" |
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487 Also purge the internal data of these messages |
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488 """ |
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489 for mess_id in self.getMessageIdsWithFlag("\\Deleted"): |
338 | 490 print ("Deleting %s" % mess_id) |
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491 self.mailbox.deleteMessage(self.getIdxFromId(mess_id)) |
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492 self.mailbox = maildir.MaildirMailbox(self.mailbox_path) # We need to reparse the dir to have coherent indexing |
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493 self.maildir.purgeDeleted(self.name, profile=self.profile) |
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494 |
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495 def emptyTrash(self): |
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496 """Delete everything in the .Trash dir""" |
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497 pass #TODO |