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annotate src/plugins/plugin_xep_0280.py @ 2528:65e278997715

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component file sharing: comments metadata: new <comments> element is added to file metadata, it contains the URL to the comments virtual node and the count of comments (this way client knows if it make sense to request comments or not). Fixed triggers in plugin XEP-0264 (return value was missing). New trigger in plugin XEP-0329 to allow component to add metadata (used here for comments url).
author Goffi <goffi@goffi.org>
date Fri, 16 Mar 2018 18:43:11 +0100
parents 0046283a285d
children
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rev   line source
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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-0280
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5 # Copyright (C) 2009-2018 Jérôme Poisson (goffi@goffi.org)
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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.
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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.
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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/>.
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19
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20 from sat.core.i18n import _, D_
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from sat.core import exceptions
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24 from sat.core.constants import Const as C
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25 from sat.core.xmpp import SatMessageProtocol
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26 from twisted.words.protocols.jabber.error import StanzaError
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27 from twisted.internet import defer
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28 from wokkel import disco, iwokkel
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29 from zope.interface import implements
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30 try:
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31 from twisted.words.protocols.xmlstream import XMPPHandler
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32 except ImportError:
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33 from wokkel.subprotocols import XMPPHandler
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34
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35
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36 PARAM_CATEGORY = "Misc"
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37 PARAM_NAME = "carbon"
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38 PARAM_LABEL = D_(u"Message carbons")
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39 NS_CARBONS = 'urn:xmpp:carbons:2'
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40
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41 PLUGIN_INFO = {
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42 C.PI_NAME: u"XEP-0280 Plugin",
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43 C.PI_IMPORT_NAME: u"XEP-0280",
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44 C.PI_TYPE: u"XEP",
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45 C.PI_PROTOCOLS: [u"XEP-0280"],
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46 C.PI_DEPENDENCIES: [],
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47 C.PI_MAIN: u"XEP_0280",
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48 C.PI_HANDLER: u"yes",
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49 C.PI_DESCRIPTION: D_(u"""Implementation of Message Carbons""")
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50 }
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51
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52
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53 class XEP_0280(object):
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54 # TODO: param is only checked at profile connection
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55 # activate carbons on param change even after profile connection
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56 # TODO: chat state notifications are not handled yet (and potentially other XEPs?)
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57
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58 params = """
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59 <params>
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60 <individual>
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61 <category name="{category_name}" label="{category_label}">
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62 <param name="{param_name}" label="{param_label}" value="true" type="bool" security="0" />
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63 </category>
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64 </individual>
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65 </params>
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66 """.format(
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67 category_name = PARAM_CATEGORY,
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68 category_label = D_(PARAM_CATEGORY),
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69 param_name = PARAM_NAME,
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70 param_label = PARAM_LABEL,
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71 )
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72
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73 def __init__(self, host):
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74 log.info(_("Plugin XEP_0280 initialization"))
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75 self.host = host
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76 host.memory.updateParams(self.params)
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77 host.trigger.add("MessageReceived", self.messageReceivedTrigger, priority=1000)
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78
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79 def getHandler(self, client):
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80 return XEP_0280_handler()
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81
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82 def setPrivate(self, message_elt):
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83 """Add a <private/> element to a message
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84
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85 this method is intented to be called on final domish.Element by other plugins
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86 (in particular end 2 end encryption plugins)
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87 @param message_elt(domish.Element): <message> stanza
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88 """
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89 if message_elt.name != u'message':
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90 log.error(u"addPrivateElt must be used with <message> stanzas")
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91 return
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92 message_elt.addElement((NS_CARBONS, u'private'))
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93
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94 @defer.inlineCallbacks
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95 def profileConnected(self, client):
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96 """activate message carbons on connection if possible and activated in config"""
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97 activate = self.host.memory.getParamA(PARAM_NAME, PARAM_CATEGORY, profile_key=client.profile)
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98 if not activate:
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99 log.info(_(u"Not activating message carbons as requested in params"))
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100 return
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101 try:
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102 yield self.host.checkFeatures(client, (NS_CARBONS,))
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103 except exceptions.FeatureNotFound:
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104 log.warning(_(u"server doesn't handle message carbons"))
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105 else:
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106 log.info(_(u"message carbons available, enabling it"))
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107 iq_elt = client.IQ()
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108 iq_elt.addElement((NS_CARBONS, 'enable'))
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109 try:
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110 yield iq_elt.send()
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111 except StanzaError as e:
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112 log.warning(u"Can't activate message carbons: {}".format(e))
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113 else:
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114 log.info(_(u"message carbons activated"))
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115
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116 def messageReceivedTrigger(self, client, message_elt, post_treat):
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117 """get message and handle it if carbons namespace is present"""
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118 carbons_elt = None
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119 for e in message_elt.elements():
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120 if e.uri == NS_CARBONS:
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121 carbons_elt = e
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122 break
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123
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124 if carbons_elt is None:
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125 # this is not a message carbons,
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126 # we continue normal behaviour
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127 return True
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128
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129 if message_elt['from'] != client.jid.userhost():
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130 log.warning(u"The message carbon received is not from our server, hack attempt?\n{xml}".format(
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131 xml = message_elt.toXml(),
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132 ))
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133 return
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134 forwarded_elt = next(carbons_elt.elements(C.NS_FORWARD, 'forwarded'))
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135 cc_message_elt = next(forwarded_elt.elements(C.NS_CLIENT, 'message'))
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136 if carbons_elt.name == 'received':
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137 # on receive we replace the wrapping message with the CCed one
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138 # and continue the normal behaviour
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139 message_elt['from'] = cc_message_elt['from']
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140 del message_elt.children[:]
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141 for c in cc_message_elt.children:
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142 message_elt.addChild(c)
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143 return True
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144 elif carbons_elt.name == 'sent':
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145 # on send we parse the message and just add it to history
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146 # and send it to frontends (without normal sending treatments)
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147 mess_data = SatMessageProtocol.parseMessage(cc_message_elt, client)
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148 if not mess_data['message'] and not mess_data['subject']:
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149 return False
2152
6a004a22dd9e plugins XEP-0033, XEP-0280, text commands: fixed method renaming after client refactoring
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150 client.messageAddToHistory(mess_data)
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151 client.messageSendToBridge(mess_data)
2099
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152 else:
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153 log.warning(u"invalid message carbons received:\n{xml}".format(
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154 xml = message_elt.toXml()))
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155 return False
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156
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157
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158 class XEP_0280_handler(XMPPHandler):
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159 implements(iwokkel.IDisco)
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160
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161 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
ad88808591ef plugin XEP-0280: Message Carbons first draft
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162 return [disco.DiscoFeature(NS_CARBONS)]
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163
ad88808591ef plugin XEP-0280: Message Carbons first draft
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164 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
ad88808591ef plugin XEP-0280: Message Carbons first draft
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165 return []