Mercurial > libervia-backend
annotate sat/plugins/plugin_xep_0280.py @ 2661:661f66d41215
core (xmpp): send initial presence only after all profileConnected have been treated:
presence is now sent after profileConnected methods are done, this avoid to have to deal with synchronisation in connection event.
For instance, PEP events should not be sent before presence is sent, so profileConnected methods can assume PEP events are not
done yet, and do needed initialisation using async method if necessary.
This has been done to avoid overcomplicated synchronisation in XEP-0384 plugin (network calls are needed to initialise session,
but PEP events need an initialised session to be treated).
author | Goffi <goffi@goffi.org> |
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date | Sat, 11 Aug 2018 18:24:55 +0200 |
parents | 56f94936df1e |
children | 5060cbeec01e |
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 |
2483 | 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 |
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23 log = getLogger(__name__) |
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24 from sat.core import exceptions |
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25 from sat.core.constants import Const as C |
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26 from sat.core.xmpp import SatMessageProtocol |
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27 from twisted.words.protocols.jabber.error import StanzaError |
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28 from twisted.internet import defer |
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29 from wokkel import disco, iwokkel |
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30 from zope.interface import implements |
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31 |
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32 try: |
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33 from twisted.words.protocols.xmlstream import XMPPHandler |
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34 except ImportError: |
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35 from wokkel.subprotocols import XMPPHandler |
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36 |
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37 |
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38 PARAM_CATEGORY = "Misc" |
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39 PARAM_NAME = "carbon" |
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40 PARAM_LABEL = D_(u"Message carbons") |
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41 NS_CARBONS = "urn:xmpp:carbons:2" |
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42 |
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43 PLUGIN_INFO = { |
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44 C.PI_NAME: u"XEP-0280 Plugin", |
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45 C.PI_IMPORT_NAME: u"XEP-0280", |
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46 C.PI_TYPE: u"XEP", |
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47 C.PI_PROTOCOLS: [u"XEP-0280"], |
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48 C.PI_DEPENDENCIES: [], |
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49 C.PI_MAIN: u"XEP_0280", |
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50 C.PI_HANDLER: u"yes", |
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51 C.PI_DESCRIPTION: D_(u"""Implementation of Message Carbons"""), |
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52 } |
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53 |
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54 |
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55 class XEP_0280(object): |
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56 # TODO: param is only checked at profile connection |
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57 # activate carbons on param change even after profile connection |
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58 # TODO: chat state notifications are not handled yet (and potentially other XEPs?) |
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59 |
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60 params = """ |
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61 <params> |
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62 <individual> |
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63 <category name="{category_name}" label="{category_label}"> |
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64 <param name="{param_name}" label="{param_label}" value="true" type="bool" security="0" /> |
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65 </category> |
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66 </individual> |
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67 </params> |
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68 """.format( |
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69 category_name=PARAM_CATEGORY, |
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70 category_label=D_(PARAM_CATEGORY), |
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71 param_name=PARAM_NAME, |
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72 param_label=PARAM_LABEL, |
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73 ) |
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74 |
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75 def __init__(self, host): |
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76 log.info(_("Plugin XEP_0280 initialization")) |
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77 self.host = host |
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78 host.memory.updateParams(self.params) |
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79 host.trigger.add("MessageReceived", self.messageReceivedTrigger, priority=1000) |
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80 |
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81 def getHandler(self, client): |
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82 return XEP_0280_handler() |
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83 |
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84 def setPrivate(self, message_elt): |
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85 """Add a <private/> element to a message |
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86 |
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87 this method is intented to be called on final domish.Element by other plugins |
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88 (in particular end 2 end encryption plugins) |
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89 @param message_elt(domish.Element): <message> stanza |
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90 """ |
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91 if message_elt.name != u"message": |
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92 log.error(u"addPrivateElt must be used with <message> stanzas") |
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93 return |
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94 message_elt.addElement((NS_CARBONS, u"private")) |
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95 |
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96 @defer.inlineCallbacks |
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97 def profileConnected(self, client): |
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98 """activate message carbons on connection if possible and activated in config""" |
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99 activate = self.host.memory.getParamA( |
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100 PARAM_NAME, PARAM_CATEGORY, profile_key=client.profile |
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101 ) |
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102 if not activate: |
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103 log.info(_(u"Not activating message carbons as requested in params")) |
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104 return |
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105 try: |
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106 yield self.host.checkFeatures(client, (NS_CARBONS,)) |
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107 except exceptions.FeatureNotFound: |
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108 log.warning(_(u"server doesn't handle message carbons")) |
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109 else: |
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110 log.info(_(u"message carbons available, enabling it")) |
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111 iq_elt = client.IQ() |
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112 iq_elt.addElement((NS_CARBONS, "enable")) |
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113 try: |
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114 yield iq_elt.send() |
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115 except StanzaError as e: |
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116 log.warning(u"Can't activate message carbons: {}".format(e)) |
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117 else: |
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118 log.info(_(u"message carbons activated")) |
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119 |
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120 def messageReceivedTrigger(self, client, message_elt, post_treat): |
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121 """get message and handle it if carbons namespace is present""" |
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122 carbons_elt = None |
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123 for e in message_elt.elements(): |
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124 if e.uri == NS_CARBONS: |
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125 carbons_elt = e |
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126 break |
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127 |
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128 if carbons_elt is None: |
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129 # this is not a message carbons, |
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130 # we continue normal behaviour |
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131 return True |
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132 |
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133 if message_elt["from"] != client.jid.userhost(): |
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134 log.warning( |
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135 u"The message carbon received is not from our server, hack attempt?\n{xml}".format( |
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136 xml=message_elt.toXml() |
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137 ) |
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138 ) |
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139 return |
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140 forwarded_elt = next(carbons_elt.elements(C.NS_FORWARD, "forwarded")) |
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141 cc_message_elt = next(forwarded_elt.elements(C.NS_CLIENT, "message")) |
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142 if carbons_elt.name == "received": |
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143 # on receive we replace the wrapping message with the CCed one |
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144 # and continue the normal behaviour |
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145 message_elt["from"] = cc_message_elt["from"] |
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146 del message_elt.children[:] |
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147 for c in cc_message_elt.children: |
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148 message_elt.addChild(c) |
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149 return True |
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150 elif carbons_elt.name == "sent": |
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151 # on send we parse the message and just add it to history |
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152 # and send it to frontends (without normal sending treatments) |
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153 mess_data = SatMessageProtocol.parseMessage(cc_message_elt, client) |
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154 if not mess_data["message"] and not mess_data["subject"]: |
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155 return False |
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156 client.messageAddToHistory(mess_data) |
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157 client.messageSendToBridge(mess_data) |
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158 else: |
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159 log.warning( |
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160 u"invalid message carbons received:\n{xml}".format( |
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161 xml=message_elt.toXml() |
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162 ) |
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163 ) |
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164 return False |
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165 |
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166 |
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167 class XEP_0280_handler(XMPPHandler): |
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168 implements(iwokkel.IDisco) |
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169 |
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170 def getDiscoInfo(self, requestor, target, nodeIdentifier=""): |
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171 return [disco.DiscoFeature(NS_CARBONS)] |
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172 |
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173 def getDiscoItems(self, requestor, target, nodeIdentifier=""): |
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174 return [] |