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annotate src/plugins/plugin_xep_0280.py @ 2108:70f23bc7859b

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core (xml_tools): fixed findAll - names and namespases arguments haven been inverted to be in the same order as for domish.Element.elements - fixed bad copy of elements in recursions - check if childrens are IElements - namespaces and names can now be basestrings instead of iterables
author Goffi <goffi@goffi.org>
date Tue, 03 Jan 2017 18:51:50 +0100
parents ad88808591ef
children 7de291c3cd0c
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2099
ad88808591ef plugin XEP-0280: Message Carbons first draft
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1 #!/usr/bin/env python2
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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) 2009-2016 Jérôme Poisson (goffi@goffi.org)
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6
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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
ad88808591ef plugin XEP-0280: Message Carbons first draft
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9 # the Free Software Foundation, either version 3 of the License, or
ad88808591ef plugin XEP-0280: Message Carbons first draft
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10 # (at your option) any later version.
ad88808591ef plugin XEP-0280: Message Carbons first draft
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11
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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
ad88808591ef plugin XEP-0280: Message Carbons first draft
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15 # GNU Affero General Public License for more details.
ad88808591ef plugin XEP-0280: Message Carbons first draft
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16
ad88808591ef plugin XEP-0280: Message Carbons first draft
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17 # You should have received a copy of the GNU Affero General Public License
ad88808591ef plugin XEP-0280: Message Carbons first draft
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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
ad88808591ef plugin XEP-0280: Message Carbons first draft
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41 PLUGIN_INFO = {
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42 "name": "XEP-0280 Plugin",
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43 "import_name": "XEP-0280",
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44 "type": "XEP",
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45 "protocols": ["XEP-0280"],
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46 "dependencies": [],
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47 "main": "XEP_0280",
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48 "handler": "yes",
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49 "description": _("""Implementation of Message Carbons""")
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50 }
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51
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52
ad88808591ef plugin XEP-0280: Message Carbons first draft
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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, profile):
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80 return XEP_0280_handler()
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81
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82 @defer.inlineCallbacks
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83 def profileConnected(self, profile):
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84 """activate message carbons on connection if possible and activated in config"""
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85 client = self.host.getClient(profile)
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86 activate = self.host.memory.getParamA(PARAM_NAME, PARAM_CATEGORY, profile_key=profile)
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87 if not activate:
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88 log.info(_(u"Not activating message carbons as requested in params"))
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89 return
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90 try:
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91 yield self.host.checkFeatures((NS_CARBONS,), profile=profile)
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92 except exceptions.FeatureNotFound:
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93 log.warning(_(u"server doesn't handle message carbons"))
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94 else:
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95 log.info(_(u"message carbons available, enabling it"))
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96 iq_elt = client.IQ()
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97 iq_elt.addElement((NS_CARBONS, 'enable'))
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98 try:
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99 yield iq_elt.send()
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100 except StanzaError as e:
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101 log.warning(u"Can't activate message carbons: {}".format(e))
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102 else:
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103 log.info(_(u"message carbons activated"))
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104
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105 def messageReceivedTrigger(self, client, message_elt, post_treat):
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106 """get message and handle it if carbons namespace is present"""
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107 carbons_elt = None
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108 for e in message_elt.elements():
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109 if e.uri == NS_CARBONS:
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110 carbons_elt = e
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111 break
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112
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113 if carbons_elt is None:
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114 # this is not a message carbons,
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115 # we continue normal behaviour
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116 return True
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117
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118 if message_elt['from'] != client.jid.userhost():
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119 log.warning(u"The message carbon received is not from our server, hack attempt?\n{xml}".format(
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120 xml = message_elt.toXml(),
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121 ))
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122 return
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123 forwarded_elt = next(carbons_elt.elements(C.NS_FORWARD, 'forwarded'))
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124 cc_message_elt = next(forwarded_elt.elements(C.NS_CLIENT, 'message'))
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125 if carbons_elt.name == 'received':
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126 # on receive we replace the wrapping message with the CCed one
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127 # and continue the normal behaviour
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128 message_elt['from'] = cc_message_elt['from']
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129 del message_elt.children[:]
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130 for c in cc_message_elt.children:
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131 message_elt.addChild(c)
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132 return True
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133 elif carbons_elt.name == 'sent':
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134 # on send we parse the message and just add it to history
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135 # and send it to frontends (without normal sending treatments)
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136 mess_data = SatMessageProtocol.parseMessage(cc_message_elt, client)
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137 if not mess_data['message'] and not mess_data['subject']:
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138 return False
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139 self.host.messageAddToHistory(mess_data, client)
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140 self.host.messageSendToBridge(mess_data, client)
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141 else:
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142 log.warning(u"invalid message carbons received:\n{xml}".format(
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143 xml = message_elt.toXml()))
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144 return False
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145
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146
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147 class XEP_0280_handler(XMPPHandler):
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148 implements(iwokkel.IDisco)
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149
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150 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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151 return [disco.DiscoFeature(NS_CARBONS)]
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152
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153 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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154 return []