Mercurial > libervia-backend
annotate libervia/backend/plugins/plugin_xep_0280.py @ 4294:a0ed5c976bf8 default tip @
component conferences, plugin XEP-0167, XEP-0298: add stream user metadata:
A/V conference now adds user metadata about the stream it is forwarding through XEP-0298.
This is parsed and added to metadata during confirmation on client side.
rel 448
author | Goffi <goffi@goffi.org> |
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date | Tue, 06 Aug 2024 23:43:11 +0200 |
parents | 0d7bb4df2343 |
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rev | line source |
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3028 | 1 #!/usr/bin/env python3 |
3137 | 2 |
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3 |
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4 # SAT plugin for managing xep-0280 |
3479 | 5 # Copyright (C) 2009-2021 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 libervia.backend.core.i18n import _, D_ |
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21 from libervia.backend.core.log import getLogger |
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22 |
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23 log = getLogger(__name__) |
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24 from libervia.backend.core import exceptions |
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25 from libervia.backend.core.constants import Const as C |
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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 |
3028 | 29 from zope.interface import implementer |
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30 |
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31 try: |
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32 from twisted.words.protocols.xmlstream import XMPPHandler |
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33 except ImportError: |
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34 from wokkel.subprotocols import XMPPHandler |
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35 |
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36 |
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37 PARAM_CATEGORY = "Misc" |
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38 PARAM_NAME = "carbon" |
3028 | 39 PARAM_LABEL = D_("Message carbons") |
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40 NS_CARBONS = "urn:xmpp:carbons:2" |
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41 |
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42 PLUGIN_INFO = { |
3028 | 43 C.PI_NAME: "XEP-0280 Plugin", |
44 C.PI_IMPORT_NAME: "XEP-0280", | |
45 C.PI_TYPE: "XEP", | |
46 C.PI_PROTOCOLS: ["XEP-0280"], | |
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47 C.PI_DEPENDENCIES: [], |
3028 | 48 C.PI_MAIN: "XEP_0280", |
49 C.PI_HANDLER: "yes", | |
50 C.PI_DESCRIPTION: D_("""Implementation of Message Carbons"""), | |
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51 } |
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52 |
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53 |
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54 class XEP_0280(object): |
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55 # TODO: param is only checked at profile connection |
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56 # activate carbons on param change even after profile connection |
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57 # TODO: chat state notifications are not handled yet (and potentially other XEPs?) |
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58 |
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59 params = """ |
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60 <params> |
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61 <individual> |
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62 <category name="{category_name}" label="{category_label}"> |
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63 <param name="{param_name}" label="{param_label}" value="true" type="bool" security="0" /> |
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64 </category> |
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65 </individual> |
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66 </params> |
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67 """.format( |
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68 category_name=PARAM_CATEGORY, |
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69 category_label=D_(PARAM_CATEGORY), |
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70 param_name=PARAM_NAME, |
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71 param_label=PARAM_LABEL, |
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72 ) |
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73 |
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74 def __init__(self, host): |
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75 log.info(_("Plugin XEP_0280 initialization")) |
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76 self.host = host |
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77 host.memory.update_params(self.params) |
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78 host.trigger.add( |
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79 "message_received", self.message_received_trigger, priority=200000 |
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80 ) |
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81 |
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82 def get_handler(self, client): |
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83 return XEP_0280_handler() |
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84 |
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85 def set_private(self, message_elt): |
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86 """Add a <private/> element to a message |
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87 |
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88 this method is intented to be called on final domish.Element by other plugins |
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89 (in particular end 2 end encryption plugins) |
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90 @param message_elt(domish.Element): <message> stanza |
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91 """ |
3028 | 92 if message_elt.name != "message": |
93 log.error("addPrivateElt must be used with <message> stanzas") | |
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94 return |
3028 | 95 message_elt.addElement((NS_CARBONS, "private")) |
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96 |
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97 @defer.inlineCallbacks |
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98 def profile_connected(self, client): |
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99 """activate message carbons on connection if possible and activated in config""" |
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100 activate = self.host.memory.param_get_a( |
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101 PARAM_NAME, PARAM_CATEGORY, profile_key=client.profile |
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102 ) |
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103 if not activate: |
3028 | 104 log.info(_("Not activating message carbons as requested in params")) |
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105 return |
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106 try: |
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107 yield self.host.check_features(client, (NS_CARBONS,)) |
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108 except exceptions.FeatureNotFound: |
3028 | 109 log.warning(_("server doesn't handle message carbons")) |
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110 else: |
3028 | 111 log.info(_("message carbons available, enabling it")) |
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112 iq_elt = client.IQ() |
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113 iq_elt.addElement((NS_CARBONS, "enable")) |
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114 try: |
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115 yield iq_elt.send() |
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116 except StanzaError as e: |
3028 | 117 log.warning("Can't activate message carbons: {}".format(e)) |
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118 else: |
3028 | 119 log.info(_("message carbons activated")) |
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120 |
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121 def message_received_trigger(self, client, message_elt, post_treat): |
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122 """get message and handle it if carbons namespace is present""" |
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123 for e in message_elt.elements(): |
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124 if e.uri == NS_CARBONS and e.name in ("received", "sent"): |
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125 carbons_elt = e |
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126 break |
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127 else: |
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128 # this is not a message carbons, |
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129 # we continue normal behaviour |
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130 return True |
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131 |
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132 if message_elt["from"] != client.jid.userhost(): |
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133 log.warning( |
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135 xml=message_elt.toXml() |
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136 ) |
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137 ) |
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138 return |
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139 forwarded_elt = next(carbons_elt.elements(C.NS_FORWARD, "forwarded")) |
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140 cc_message_elt = next(forwarded_elt.elements(C.NS_CLIENT, "message")) |
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141 |
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142 # we replace the wrapping message with the CCed one |
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143 # and continue the normal behaviour |
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144 message_elt["type"] = cc_message_elt.getAttribute("type", C.MESS_TYPE_NORMAL) |
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145 mess_id = cc_message_elt.getAttribute("id") |
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146 if mess_id: |
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147 message_elt[mess_id] = mess_id |
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148 if carbons_elt.name == "received": |
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149 message_elt["from"] = cc_message_elt["from"] |
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150 lang = cc_message_elt.getAttribute("xml:lang") |
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151 if lang: |
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152 message_elt["xml:lang"] = lang |
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153 elif carbons_elt.name == "sent": |
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154 # the cc_message_elt is the full JID, so we copy it |
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155 message_elt["from"] = cc_message_elt["from"] |
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156 try: |
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157 message_elt["to"] = cc_message_elt["to"] |
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158 except KeyError: |
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159 # we may not have "to" in case of message from ourself (from an other |
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160 # device) |
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161 pass |
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162 else: |
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163 log.warning( |
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164 "invalid message carbons received:\n{xml}".format(xml=message_elt.toXml()) |
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165 ) |
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166 return False |
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167 |
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168 del message_elt.children[:] |
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169 for c in cc_message_elt.children: |
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170 message_elt.addChild(c) |
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171 |
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172 return True |
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173 |
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174 |
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176 class XEP_0280_handler(XMPPHandler): |
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177 |
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178 def getDiscoInfo(self, requestor, target, nodeIdentifier=""): |
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179 return [disco.DiscoFeature(NS_CARBONS)] |
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180 |
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181 def getDiscoItems(self, requestor, target, nodeIdentifier=""): |
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182 return [] |