annotate src/plugins/plugin_xep_0054.py @ 412:62b17854254e

database integration: first draft - using SQLite as backend /!\ Not finished yet, break execution. SàT CAN'T LAUNCH PROPERLY IN THE CURRENT STATE
author Goffi <goffi@goffi.org>
date Sun, 30 Oct 2011 23:13:40 +0100
parents f964dcec1611
children c243f4cb2ad9
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 """
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5 SAT plugin for managing xep-0054
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6 Copyright (C) 2009, 2010, 2011 Jérôme Poisson (goffi@goffi.org)
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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 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 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 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 """
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21
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22 from logging import debug, info, error
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23 from twisted.words.xish import domish
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24 from twisted.internet import protocol, defer, threads, reactor
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25 from twisted.words.protocols.jabber import client, jid, xmlstream
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26 from twisted.words.protocols.jabber import error as jab_error
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27 from twisted.words.protocols.jabber.xmlstream import IQ
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28 import os.path
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29 import pdb
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30
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31 from zope.interface import implements
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32
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33 from wokkel import disco, iwokkel
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34
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35 from base64 import b64decode
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36 from hashlib import sha1
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37 from time import sleep
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38
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39 try:
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40 from twisted.words.protocols.xmlstream import XMPPHandler
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41 except ImportError:
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42 from wokkel.subprotocols import XMPPHandler
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43
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44 AVATAR_PATH = "avatars"
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45
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46 IQ_GET = '/iq[@type="get"]'
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47 NS_VCARD = 'vcard-temp'
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48 VCARD_REQUEST = IQ_GET + '/vCard[@xmlns="' + NS_VCARD + '"]' #TODO: manage requests
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49
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50 PRESENCE = '/presence'
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51 NS_VCARD_UPDATE = 'vcard-temp:x:update'
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52 VCARD_UPDATE = PRESENCE + '/x[@xmlns="' + NS_VCARD_UPDATE + '"]'
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53
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54 PLUGIN_INFO = {
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55 "name": "XEP 0054 Plugin",
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56 "import_name": "XEP-0054",
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57 "type": "XEP",
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58 "protocols": ["XEP-0054", "XEP-0153"],
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59 "dependencies": [],
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60 "main": "XEP_0054",
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61 "handler": "yes",
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62 "description": _("""Implementation of vcard-temp""")
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63 }
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64
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65 class XEP_0054():
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66
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67 def __init__(self, host):
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68 info(_("Plugin XEP_0054 initialization"))
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69 self.host = host
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70 self.avatar_path = os.path.join(self.host.memory.getConfig('', 'local_dir'), AVATAR_PATH)
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71 self.vcard_cache = host.memory.getPrivate("vcard_cache") or {} #used to store nicknames and avatar, key = jid
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72 if not os.path.exists(self.avatar_path):
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73 os.makedirs(self.avatar_path)
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74 host.bridge.addMethod("getCard", ".plugin", in_sign='ss', out_sign='s', method=self.getCard)
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75 host.bridge.addMethod("getAvatarFile", ".plugin", in_sign='s', out_sign='s', method=self.getAvatarFile)
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76 host.bridge.addMethod("getCardCache", ".plugin", in_sign='s', out_sign='a{ss}', method=self.getCardCache)
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77
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78 def getHandler(self, profile):
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79 return XEP_0054_handler(self)
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80
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81 def update_cache(self, jid, name, value, profile):
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82 """update cache value
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83 - save value in memory in case of change
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84 - send updatedValue signal if the value is new or updated
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85 @param jid: jid of the owner of the vcard
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86 @param name: name of the item which changed
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87 @param value: new value of the item
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88 @param profile: profile which received the update
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89 """
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90 if not self.vcard_cache.has_key(jid.userhost()):
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91 self.vcard_cache[jid.userhost()] = {}
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92
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93 cache = self.vcard_cache[jid.userhost()]
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94 old_value = cache[name] if cache.has_key(name) else None
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95 if not old_value or value != old_value:
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96 cache[name] = value
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97 self.host.memory.setPrivate("vcard_cache", self.vcard_cache)
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98 self.host.bridge.updatedValue('card_'+name, {'jid':jid.userhost(), name:value}, profile)
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99
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100 def get_cache(self, jid, name):
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101 """return cached value for jid
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102 @param jid: target contact
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103 @param name: name of the value ('nick' or 'avatar')
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104 @return: wanted value or None"""
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105 try:
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106 return self.vcard_cache[jid.userhost()][name]
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107 except KeyError:
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108 return None
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109
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110
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111 def save_photo(self, photo_xml):
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112 """Parse a <PHOTO> elem and save the picture"""
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113 for elem in photo_xml.elements():
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114 if elem.name == 'TYPE':
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115 info(_('Photo of type [%s] found') % str(elem))
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116 if elem.name == 'BINVAL':
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117 debug(_('Decoding binary'))
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118 decoded = b64decode(str(elem))
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119 hash = sha1(decoded).hexdigest()
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120 filename = self.avatar_path+'/'+hash
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121 if not os.path.exists(filename):
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122 with open(filename,'wb') as file:
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123 file.write(decoded)
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124 debug(_("file saved to %s") % hash)
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125 else:
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126 debug(_("file [%s] already in cache") % hash)
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127 return hash
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128
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129 @defer.deferredGenerator
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130 def vCard2Dict(self, vcard, target, profile):
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131 """Convert a VCard to a dict, and save binaries"""
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132 debug (_("parsing vcard"))
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133 dictionary = {}
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134 d = defer.Deferred()
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135
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136 for elem in vcard.elements():
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137 if elem.name == 'FN':
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diff changeset
138 dictionary['fullname'] = unicode(elem)
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139 elif elem.name == 'NICKNAME':
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140 dictionary['nick'] = unicode(elem)
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141 self.update_cache(target, 'nick', dictionary['nick'], profile)
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142 elif elem.name == 'URL':
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143 dictionary['website'] = unicode(elem)
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144 elif elem.name == 'EMAIL':
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145 dictionary['email'] = unicode(elem)
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146 elif elem.name == 'BDAY':
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147 dictionary['birthday'] = unicode(elem)
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148 elif elem.name == 'PHOTO':
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149 d2 = defer.waitForDeferred(
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150 threads.deferToThread(self.save_photo, elem))
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151 yield d2
43
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152 dictionary["avatar"] = d2.getResult()
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153 if not dictionary["avatar"]: #can happen in case of e.g. empty photo elem
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154 del dictionary['avatar']
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155 else:
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156 self.update_cache(target, 'avatar', dictionary['avatar'], profile)
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157 else:
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158 info (_('FIXME: [%s] VCard tag is not managed yet') % elem.name)
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159
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160 yield dictionary
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161
372
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162 def vcard_ok(self, answer, profile):
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163 """Called after the first get IQ"""
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164 debug (_("VCard found"))
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165
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166 if answer.firstChildElement().name == "vCard":
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167 d = self.vCard2Dict(answer.firstChildElement(), jid.JID(answer["from"]), profile)
42
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168 d.addCallback(lambda data: self.host.bridge.actionResult("RESULT", answer['id'], data))
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169 else:
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170 error (_("FIXME: vCard not found as first child element"))
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parents:
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171 self.host.bridge.actionResult("SUPPRESS", answer['id'], {}) #FIXME: maybe an error message would be best
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parents:
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172
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173 def vcard_err(self, failure):
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174 """Called when something is wrong with registration"""
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175 error (_("Can't find VCard of %s") % failure.value.stanza['from'])
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parents:
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176 self.host.bridge.actionResult("SUPPRESS", failure.value.stanza['id'], {}) #FIXME: maybe an error message would be best
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parents:
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177
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diff changeset
178 def getCard(self, target, profile_key='@DEFAULT@'):
42
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179 """Ask server for VCard
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180 @param target: jid from which we want the VCard
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181 @result: id to retrieve the profile"""
64
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parents: 57
diff changeset
182 current_jid, xmlstream = self.host.getJidNStream(profile_key)
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parents: 57
diff changeset
183 if not xmlstream:
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parents: 66
diff changeset
184 error (_('Asking vcard for an non-existant or not connected profile'))
64
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parents: 57
diff changeset
185 return ""
372
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diff changeset
186 profile = self.host.memory.getProfileName(profile_key)
42
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parents:
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187 to_jid = jid.JID(target)
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parents: 66
diff changeset
188 debug(_("Asking for %s's VCard") % to_jid.userhost())
64
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
189 reg_request=IQ(xmlstream,'get')
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parents: 57
diff changeset
190 reg_request["from"]=current_jid.full()
48
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parents: 44
diff changeset
191 reg_request["to"] = to_jid.userhost()
42
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parents:
diff changeset
192 query=reg_request.addElement('vCard', NS_VCARD)
372
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parents: 365
diff changeset
193 reg_request.send(to_jid.userhost()).addCallbacks(self.vcard_ok, self.vcard_err, [profile])
42
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parents:
diff changeset
194 return reg_request["id"]
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parents:
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195
43
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
196 def getAvatarFile(self, hash):
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
197 """Give the full path of avatar from hash
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parents: 42
diff changeset
198 @param hash: SHA1 hash
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parents: 42
diff changeset
199 @return full_path
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
200 """
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
201 filename = self.avatar_path+'/'+hash
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
202 if not os.path.exists(filename):
69
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parents: 66
diff changeset
203 error (_("Asking for an uncached avatar [%s]") % hash)
43
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
204 return ""
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
205 return filename
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Goffi <goffi@goffi.org>
parents: 42
diff changeset
206
64
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parents: 57
diff changeset
207 def getCardCache(self, target):
48
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parents: 44
diff changeset
208 """Request for cached values of profile
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
209 return the cached nickname and avatar if exists, else get VCard
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
210 """
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
211 to_jid = jid.JID(target)
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
212 result = {}
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
213 nick = self.get_cache(to_jid, 'nick')
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
214 if nick:
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
215 result['nick'] = nick
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
216 avatar = self.get_cache(to_jid, 'avatar')
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
217 if avatar:
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
218 result['avatar'] = avatar
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
219 return result
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parents: 44
diff changeset
220
64
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parents: 57
diff changeset
221
d46f849664aa SàT: multi-profile, plugins updated
Goffi <goffi@goffi.org>
parents: 57
diff changeset
222
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
223 class XEP_0054_handler(XMPPHandler):
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
224 implements(iwokkel.IDisco)
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
225
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
226 def __init__(self, plugin_parent):
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diff changeset
227 self.plugin_parent = plugin_parent
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
228 self.host = plugin_parent.host
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
229
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
230 def connectionInitialized(self):
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
231 self.xmlstream.addObserver(VCARD_UPDATE, self.update)
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
232
d46f849664aa SàT: multi-profile, plugins updated
Goffi <goffi@goffi.org>
parents: 57
diff changeset
233 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
234 return [disco.DiscoFeature(NS_VCARD)]
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
235
d46f849664aa SàT: multi-profile, plugins updated
Goffi <goffi@goffi.org>
parents: 57
diff changeset
236 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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Goffi <goffi@goffi.org>
parents: 57
diff changeset
237 return []
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parents: 57
diff changeset
238
48
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
239 def update(self, presence):
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
240 """Request for VCard's nickname
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
241 return the cached nickname if exists, else get VCard
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
242 """
281
Goffi <goffi@goffi.org>
parents: 228
diff changeset
243 from_jid = jid.JID(presence['from'])
48
4392f1fdb064 plugins improvement
Goffi <goffi@goffi.org>
parents: 44
diff changeset
244 x_elem = filter (lambda x:x.name == "x", presence.elements())[0] #We only want the "x" element
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
245 for elem in x_elem.elements():
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Goffi <goffi@goffi.org>
parents: 44
diff changeset
246 if elem.name == 'photo':
4392f1fdb064 plugins improvement
Goffi <goffi@goffi.org>
parents: 44
diff changeset
247 hash = str(elem)
281
Goffi <goffi@goffi.org>
parents: 228
diff changeset
248 old_avatar = self.plugin_parent.get_cache(from_jid, 'avatar')
48
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parents: 44
diff changeset
249 if not old_avatar or old_avatar != hash:
69
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Goffi <goffi@goffi.org>
parents: 66
diff changeset
250 debug(_('New avatar found, requesting vcard'))
281
Goffi <goffi@goffi.org>
parents: 228
diff changeset
251 self.plugin_parent.getCard(from_jid.userhost(), self.parent.profile)