Mercurial > libervia-backend
annotate src/plugins/plugin_xep_0054.py @ 1955:633b5c21aefd
backend, frontend: messages refactoring (huge commit, not finished):
/!\ database schema has been modified, do a backup before updating
message have been refactored, here are the main changes:
- languages are now handled
- all messages have an uid (internal to SàT)
- message updating is anticipated
- subject is now first class
- new naming scheme is used newMessage => messageNew, getHistory => historyGet, sendMessage => messageSend
- minimal compatibility refactoring in quick_frontend/Primitivus, better refactoring should follow
- threads handling
- delayed messages are saved into history
- info messages may also be saved in history (e.g. to keep track of people joining/leaving a room)
- duplicate messages should be avoided
- historyGet return messages in right order, no need to sort again
- plugins have been updated to follow new features, some of them need to be reworked (e.g. OTR)
- XEP-0203 (Delayed Delivery) is now fully handled in core, the plugin just handle disco and creation of a delay element
- /!\ jp and Libervia are currently broken, as some features of Primitivus
It has been put in one huge commit to avoid breaking messaging between changes.
This is the main part of message refactoring, other commits will follow to take profit of the new features/behaviour.
author | Goffi <goffi@goffi.org> |
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date | Tue, 24 May 2016 22:11:04 +0200 |
parents | 2daf7b4c6756 |
children | 200cd707a46d |
rev | line source |
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1934
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1 #!/usr/bin/env python2 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SAT plugin for managing xep-0054 |
1766 | 5 # Copyright (C) 2009-2016 Jérôme Poisson (goffi@goffi.org) |
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6 # Copyright (C) 2014 Emmanuel Gil Peyrot (linkmauve@linkmauve.fr) |
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7 |
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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 |
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10 # the Free Software Foundation, either version 3 of the License, or |
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11 # (at your option) any later version. |
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12 |
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13 # This program is distributed in the hope that it will be useful, |
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 # GNU Affero General Public License for more details. |
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17 |
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18 # You should have received a copy of the GNU Affero General Public License |
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>. |
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20 |
771 | 21 from sat.core.i18n import _ |
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22 from sat.core.constants import Const as C |
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23 from sat.core.log import getLogger |
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24 log = getLogger(__name__) |
939 | 25 from twisted.internet import threads, defer |
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26 from twisted.words.protocols.jabber import jid |
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27 from twisted.words.protocols.jabber.xmlstream import IQ |
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28 from twisted.words.xish import domish |
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29 from twisted.python.failure import Failure |
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30 import os.path |
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31 |
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32 from zope.interface import implements |
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33 |
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34 from wokkel import disco, iwokkel |
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35 |
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36 from base64 import b64decode, b64encode |
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37 from hashlib import sha1 |
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38 from sat.core import exceptions |
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39 from sat.memory import persistent |
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40 try: |
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41 from PIL import Image |
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42 except: |
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43 raise exceptions.MissingModule(u"Missing module pillow, please download/install it from https://python-pillow.github.io") |
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44 from cStringIO import StringIO |
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45 |
48 | 46 try: |
47 from twisted.words.protocols.xmlstream import XMPPHandler | |
48 except ImportError: | |
49 from wokkel.subprotocols import XMPPHandler | |
50 | |
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51 AVATAR_PATH = "avatars" |
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52 AVATAR_DIM = (64, 64) |
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53 |
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54 IQ_GET = '/iq[@type="get"]' |
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55 NS_VCARD = 'vcard-temp' |
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56 VCARD_REQUEST = IQ_GET + '/vCard[@xmlns="' + NS_VCARD + '"]' # TODO: manage requests |
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57 |
48 | 58 PRESENCE = '/presence' |
59 NS_VCARD_UPDATE = 'vcard-temp:x:update' | |
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60 VCARD_UPDATE = PRESENCE + '/x[@xmlns="' + NS_VCARD_UPDATE + '"]' |
48 | 61 |
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62 CACHED_DATA = {'avatar', 'nick'} |
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63 |
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64 PLUGIN_INFO = { |
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65 "name": "XEP 0054 Plugin", |
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66 "import_name": "XEP-0054", |
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67 "type": "XEP", |
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68 "protocols": ["XEP-0054", "XEP-0153"], |
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69 "dependencies": [], |
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70 "recommendations": ["XEP-0045"], |
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71 "main": "XEP_0054", |
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72 "handler": "yes", |
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73 "description": _("""Implementation of vcard-temp""") |
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74 } |
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75 |
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76 |
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77 class XEP_0054(object): |
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78 #TODO: - check that nickname is ok |
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79 # - refactor the code/better use of Wokkel |
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80 # - get missing values |
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81 |
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82 def __init__(self, host): |
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83 log.info(_("Plugin XEP_0054 initialization")) |
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84 self.host = host |
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85 self.avatar_path = os.path.join(self.host.memory.getConfig('', 'local_dir'), AVATAR_PATH) |
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86 if not os.path.exists(self.avatar_path): |
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87 os.makedirs(self.avatar_path) |
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88 self.cache = {} |
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89 host.bridge.addMethod("getCard", ".plugin", in_sign='ss', out_sign='s', method=self._getCard) |
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90 host.bridge.addMethod("getAvatarFile", ".plugin", in_sign='s', out_sign='s', method=self.getAvatarFile) |
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91 host.bridge.addMethod("setAvatar", ".plugin", in_sign='ss', out_sign='', method=self.setAvatar, async=True) |
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92 host.trigger.add("presence_available", self.presenceAvailableTrigger) |
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93 host.memory.setSignalOnUpdate("avatar") |
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94 host.memory.setSignalOnUpdate("nick") |
64 | 95 |
72 | 96 def getHandler(self, profile): |
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97 return XEP_0054_handler(self) |
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98 |
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99 def presenceAvailableTrigger(self, presence_elt, client): |
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100 if client.jid.userhost() in self.cache[client.profile]: |
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101 try: |
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102 avatar_hash = self.cache[client.profile][client.jid.userhost()]['avatar'] |
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103 except KeyError: |
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104 log.info(u"No avatar in cache for {}".format(client.jid.userhost())) |
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105 return True |
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106 x_elt = domish.Element((NS_VCARD_UPDATE, 'x')) |
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107 x_elt.addElement('photo', content=avatar_hash) |
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108 presence_elt.addChild(x_elt) |
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109 |
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110 return True |
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111 |
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112 def isInRoom(self, entity_jid, profile): |
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113 """Tell if an full jid is a member of a room |
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114 |
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115 @param entity_jid(jid.JID): full jid of the entity |
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116 @return (bool): True if the bare jid of the entity is a room jid |
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117 """ |
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118 try: |
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119 return self.host.plugins['XEP-0045'].isRoom(entity_jid.userhostJID(), profile_key=profile) |
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120 except KeyError: |
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121 return False |
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122 |
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123 def _fillCachedValues(self, profile): |
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124 #FIXME: this is really suboptimal, need to be reworked |
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125 # the current naive approach keeps a map between all jids of all profiles |
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126 # in persistent cache, then put avatar hashs in memory. |
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127 # Hashes should be shared between profiles |
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128 for jid_s, data in self.cache[profile].iteritems(): |
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129 jid_ = jid.JID(jid_s) |
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130 for name in CACHED_DATA: |
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131 try: |
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132 self.host.memory.updateEntityData(jid_, name, data[name], silent=True, profile_key=profile) |
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133 except KeyError: |
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134 pass |
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135 |
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136 @defer.inlineCallbacks |
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137 def profileConnecting(self, profile): |
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138 self.cache[profile] = persistent.PersistentBinaryDict(NS_VCARD, profile) |
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139 yield self.cache[profile].load() |
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140 self._fillCachedValues(profile) |
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141 |
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142 def profileDisconnected(self, profile): |
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143 log.debug(u"Deleting profile cache for avatars") |
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144 del self.cache[profile] |
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145 |
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146 def updateCache(self, jid_, name, value, profile): |
48 | 147 """update cache value |
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148 |
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149 save value in memory in case of change |
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150 @param jid_(jid.JID): jid of the owner of the vcard |
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151 @param name(str): name of the item which changed |
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152 @param value(unicode): new value of the item |
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153 @param profile(unicode): profile which received the update |
48 | 154 """ |
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155 if jid_.resource: |
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156 if not self.isInRoom(jid_, profile): |
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157 # VCard are retrieved with bare jid |
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158 # but MUC room is a special case |
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159 jid_ = jid.userhostJID() |
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160 |
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161 self.host.memory.updateEntityData(jid_, name, value, profile_key=profile) |
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162 if name in CACHED_DATA: |
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163 jid_s = jid_.userhost() |
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164 self.cache[profile].setdefault(jid_s, {})[name] = value |
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165 self.cache[profile].force(jid_s) |
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166 |
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167 def getCache(self, entity_jid, name, profile): |
48 | 168 """return cached value for jid |
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169 |
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170 @param entity_jid: target contact |
48 | 171 @param name: name of the value ('nick' or 'avatar') |
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172 @param profile: %(doc_profile)s |
48 | 173 @return: wanted value or None""" |
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174 if entity_jid.resource: |
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175 if not self.isInRoom(entity_jid, profile): |
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176 # VCard are retrieved with bare jid |
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177 # but MUC room is a special case |
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178 entity_jid = jid.userhostJID() |
48 | 179 try: |
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180 data = self.host.memory.getEntityData(entity_jid, [name], profile) |
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181 except exceptions.UnknownEntityError: |
48 | 182 return None |
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183 return data.get(name) |
48 | 184 |
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185 def _getFilename(self, hash_): |
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186 """Get filename from hash |
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187 |
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188 @param hash_: hash of the avatar |
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189 @return (str): absolute filename of the avatar |
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190 """ |
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191 return os.path.join(self.avatar_path, hash_) |
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192 |
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193 def saveAvatarFile(self, data, hash_): |
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194 """Save the avatar picture if it doesn't already exists |
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195 |
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196 @param data(str): binary image of the avatar |
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197 @param hash_(str): hash of the binary data (will be used for the filename) |
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198 """ |
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199 filename = self._getFilename(hash_) |
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200 if not os.path.exists(filename): |
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201 with open(filename, 'wb') as file_: |
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202 file_.write(data) |
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203 log.debug(_(u"file saved to %s") % hash_) |
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204 else: |
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205 log.debug(_(u"file [%s] already in cache") % hash_) |
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206 |
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207 def savePhoto(self, photo_xml): |
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208 """Parse a <PHOTO> elem and save the picture""" |
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209 for elem in photo_xml.elements(): |
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210 if elem.name == 'TYPE': |
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211 log.debug(_(u'Photo of type [%s] found') % str(elem)) |
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212 if elem.name == 'BINVAL': |
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213 log.debug(_('Decoding binary')) |
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214 decoded = b64decode(str(elem)) |
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215 image_hash = sha1(decoded).hexdigest() |
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216 self.saveAvatarFile(decoded, image_hash) |
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217 return image_hash |
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218 |
939 | 219 @defer.inlineCallbacks |
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220 def vCard2Dict(self, vcard, target, profile): |
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221 """Convert a VCard to a dict, and save binaries""" |
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222 log.debug(_("parsing vcard")) |
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223 dictionary = {} |
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224 |
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225 for elem in vcard.elements(): |
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226 if elem.name == 'FN': |
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227 dictionary['fullname'] = unicode(elem) |
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228 elif elem.name == 'NICKNAME': |
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229 dictionary['nick'] = unicode(elem) |
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230 self.updateCache(target, 'nick', dictionary['nick'], profile) |
42
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231 elif elem.name == 'URL': |
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232 dictionary['website'] = unicode(elem) |
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233 elif elem.name == 'EMAIL': |
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234 dictionary['email'] = unicode(elem) |
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235 elif elem.name == 'BDAY': |
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236 dictionary['birthday'] = unicode(elem) |
42
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237 elif elem.name == 'PHOTO': |
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238 dictionary["avatar"] = yield threads.deferToThread(self.savePhoto, elem) |
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239 if not dictionary["avatar"]: # can happen in case of e.g. empty photo elem |
48 | 240 del dictionary['avatar'] |
241 else: | |
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242 self.updateCache(target, 'avatar', dictionary['avatar'], profile) |
42
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243 else: |
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244 log.info(_('FIXME: [%s] VCard tag is not managed yet') % elem.name) |
42
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245 |
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246 # if a data in cache doesn't exist anymore, we need to reset it |
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247 # so we check CACHED_DATA no gotten (i.e. not in dictionary keys) |
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248 # and we reset them |
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249 for datum in CACHED_DATA.difference(dictionary.keys()): |
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250 log.debug(u"reseting vcard datum [{datum}] for {entity}".format(datum=datum, entity=target.full())) |
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251 self.updateCache(target, datum, '', profile) |
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252 |
939 | 253 defer.returnValue(dictionary) |
42
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254 |
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255 def _VCardCb(self, answer, profile): |
42
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256 """Called after the first get IQ""" |
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257 log.debug(_("VCard found")) |
42
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258 |
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259 if answer.firstChildElement().name == "vCard": |
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260 _jid, steam = self.host.getJidNStream(profile) |
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261 try: |
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262 from_jid = jid.JID(answer["from"]) |
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263 except KeyError: |
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264 from_jid = _jid.userhostJID() |
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265 d = self.vCard2Dict(answer.firstChildElement(), from_jid, profile) |
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266 d.addCallback(lambda data: self.host.bridge.actionResult("RESULT", answer['id'], data, profile)) |
42
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267 else: |
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268 log.error(_("FIXME: vCard not found as first child element")) |
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269 self.host.bridge.actionResult("SUPPRESS", answer['id'], {}, profile) # FIXME: maybe an error message would be better |
42
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270 |
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271 def _VCardEb(self, failure, profile): |
42
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272 """Called when something is wrong with registration""" |
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273 try: |
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274 self.host.bridge.actionResult("SUPPRESS", failure.value.stanza['id'], {}, profile) # FIXME: maybe an error message would be better |
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275 log.warning(_(u"Can't find VCard of %s") % failure.value.stanza['from']) |
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276 self.updateCache(jid.JID(failure.value.stanza['from']), "avatar", '', profile) |
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277 except (AttributeError, KeyError): |
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278 # 'ConnectionLost' object has no attribute 'stanza' + sometimes 'from' key doesn't exist |
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279 log.warning(_(u"Can't find VCard: %s") % failure.getErrorMessage()) |
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280 |
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281 def _getCard(self, target_s, profile_key=C.PROF_KEY_NONE): |
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282 return self.getCard(jid.JID(target_s), profile_key) |
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283 |
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284 def getCard(self, target, profile_key=C.PROF_KEY_NONE): |
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285 """Ask server for VCard |
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286 |
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287 @param target(jid.JID): jid from which we want the VCard |
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288 @result: id to retrieve the profile |
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289 """ |
64 | 290 current_jid, xmlstream = self.host.getJidNStream(profile_key) |
291 if not xmlstream: | |
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292 raise exceptions.ProfileUnknownError('Asking vcard for a non-existant or not connected profile ({})'.format(profile_key)) |
372
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293 profile = self.host.memory.getProfileName(profile_key) |
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294 to_jid = target.userhostJID() |
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295 log.debug(_(u"Asking for %s's VCard") % to_jid.userhost()) |
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296 reg_request = IQ(xmlstream, 'get') |
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297 reg_request["from"] = current_jid.full() |
48 | 298 reg_request["to"] = to_jid.userhost() |
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299 reg_request.addElement('vCard', NS_VCARD) |
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300 reg_request.send(to_jid.userhost()).addCallbacks(self._VCardCb, self._VCardEb, callbackArgs=[profile], errbackArgs=[profile]) |
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301 return reg_request["id"] |
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302 |
562
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303 def getAvatarFile(self, avatar_hash): |
43 | 304 """Give the full path of avatar from hash |
305 @param hash: SHA1 hash | |
306 @return full_path | |
307 """ | |
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308 filename = self.avatar_path + '/' + avatar_hash |
43 | 309 if not os.path.exists(filename): |
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310 log.error(_(u"Asking for an uncached avatar [%s]") % avatar_hash) |
43 | 311 return "" |
312 return filename | |
313 | |
570
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314 def _buildSetAvatar(self, vcard_set, filepath): |
562
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315 try: |
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316 img = Image.open(filepath) |
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317 except IOError: |
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318 return Failure(exceptions.DataError("Can't open image")) |
562
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319 |
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320 if img.size != AVATAR_DIM: |
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321 img.thumbnail(AVATAR_DIM, Image.ANTIALIAS) |
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322 if img.size[0] != img.size[1]: # we need to crop first |
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323 left, upper = (0, 0) |
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324 right, lower = img.size |
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325 offset = abs(right - lower) / 2 |
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326 if right == min(img.size): |
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327 upper += offset |
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328 lower -= offset |
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329 else: |
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330 left += offset |
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331 right -= offset |
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332 img = img.crop((left, upper, right, lower)) |
562
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333 img_buf = StringIO() |
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334 img.save(img_buf, 'PNG') |
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335 |
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336 vcard_elt = vcard_set.addElement('vCard', NS_VCARD) |
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337 photo_elt = vcard_elt.addElement('PHOTO') |
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338 photo_elt.addElement('TYPE', content='image/png') |
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339 photo_elt.addElement('BINVAL', content=b64encode(img_buf.getvalue())) |
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340 img_hash = sha1(img_buf.getvalue()).hexdigest() |
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341 self.saveAvatarFile(img_buf.getvalue(), img_hash) |
562
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342 return (vcard_set, img_hash) |
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343 |
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344 def setAvatar(self, filepath, profile_key=C.PROF_KEY_NONE): |
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345 """Set avatar of the profile |
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346 @param filepath: path of the image of the avatar""" |
1199 | 347 #TODO: This is a temporary way of setting the avatar, as other VCard information is not managed. |
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348 # A proper full VCard management should be done (and more generaly a public/private profile) |
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349 client = self.host.getClient(profile_key) |
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350 |
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351 vcard_set = IQ(client.xmlstream, 'set') |
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352 d = threads.deferToThread(self._buildSetAvatar, vcard_set, filepath) |
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353 |
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354 def elementBuilt(result): |
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355 """Called once the image is at the right size/format, and the vcard set element is build""" |
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356 set_avatar_elt, img_hash = result |
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357 self.updateCache(client.jid.userhostJID(), 'avatar', img_hash, client.profile) |
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358 return set_avatar_elt.send().addCallback(lambda ignore: client.presence.available()) # FIXME: should send the current presence, not always "available" ! |
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359 |
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360 d.addCallback(elementBuilt) |
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361 |
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362 return d |
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363 |
64 | 364 |
365 class XEP_0054_handler(XMPPHandler): | |
366 implements(iwokkel.IDisco) | |
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367 |
64 | 368 def __init__(self, plugin_parent): |
369 self.plugin_parent = plugin_parent | |
370 self.host = plugin_parent.host | |
371 | |
372 def connectionInitialized(self): | |
373 self.xmlstream.addObserver(VCARD_UPDATE, self.update) | |
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374 |
64 | 375 def getDiscoInfo(self, requestor, target, nodeIdentifier=''): |
376 return [disco.DiscoFeature(NS_VCARD)] | |
377 | |
378 def getDiscoItems(self, requestor, target, nodeIdentifier=''): | |
379 return [] | |
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380 |
48 | 381 def update(self, presence): |
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382 """Called on <presence/> stanza with vcard data |
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383 |
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384 Check for avatar information, and get VCard if needed |
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385 @param presend(domish.Element): <presence/> stanza |
48 | 386 """ |
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387 from_jid = jid.JID(presence['from']) |
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388 if from_jid.resource and not self.plugin_parent.isInRoom(from_jid, self.parent.profile): |
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389 from_jid = from_jid.userhostJID() |
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390 #FIXME: wokkel's data_form should be used here |
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391 try: |
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392 x_elt = presence.elements(NS_VCARD_UPDATE, 'x').next() |
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393 except StopIteration: |
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394 return |
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395 |
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396 try: |
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397 photo_elt = x_elt.elements(NS_VCARD_UPDATE, 'photo').next() |
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398 except StopIteration: |
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399 return |
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400 |
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401 hash_ = str(photo_elt) |
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402 if not hash_: |
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403 return |
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404 old_avatar = self.plugin_parent.getCache(from_jid, 'avatar', self.parent.profile) |
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405 filename = self.plugin_parent._getFilename(hash_) |
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406 if not old_avatar or old_avatar != hash_: |
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407 if os.path.exists(filename): |
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408 log.debug(u"New avatar found for [{}], it's already in cache, we use it".format(from_jid.full())) |
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409 self.plugin_parent.updateCache(from_jid, 'avatar', hash_, self.parent.profile) |
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410 else: |
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411 log.debug(u'New avatar found for [{}], requesting vcard'.format(from_jid.full())) |
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412 self.plugin_parent.getCard(from_jid, self.parent.profile) |
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413 else: |
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414 if os.path.exists(filename): |
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415 log.debug(u"avatar for {} already in cache".format(from_jid.full())) |
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416 else: |
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417 log.error(u"Avatar for [{}] should be in cache but it is not ! We get it".format(from_jid.full())) |
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418 self.plugin_parent.getCard(from_jid, self.parent.profile) |
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419 |