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annotate libervia/backend/plugins/plugin_xep_0199.py @ 4291:39ac821ebbdb

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plugin XEP-0167: handle conferences: - SDP can now be answered by component instead of frontend. This is useful for A/V conferences component to handle A/V call jingle sessions. - new `call_update` and method, and `content-add` action preparation. This is not yet used by A/V conference, but it's a preparation for a potential future use. - Add NS_AV_CONFERENCES to features as required by the newly proposed A/V Conferences protoXEP. rel 447
author Goffi <goffi@goffi.org>
date Mon, 29 Jul 2024 03:31:09 +0200
parents 0d7bb4df2343
children
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1 #!/usr/bin/env python3
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2
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3
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4 # SAT plugin for Delayed Delivery (XEP-0199)
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5 # Copyright (C) 2009-2021 Jérôme Poisson (goffi@goffi.org)
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6 # Copyright (C) 2013-2016 Adrien Cossa (souliane@mailoo.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 Affero 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 Affero 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 Affero 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 from libervia.backend.core.i18n import _, D_
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22 from libervia.backend.core.log import getLogger
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23
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24 log = getLogger(__name__)
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25 from libervia.backend.core.constants import Const as C
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26 from wokkel import disco, iwokkel
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27 from twisted.words.protocols.jabber import xmlstream, jid
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28 from zope.interface import implementer
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29 import time
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30
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31
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32 PLUGIN_INFO = {
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33 C.PI_NAME: "XMPP PING",
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34 C.PI_IMPORT_NAME: "XEP-0199",
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35 C.PI_TYPE: "XEP",
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36 C.PI_PROTOCOLS: ["XEP-199"],
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37 C.PI_MAIN: "XEP_0199",
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38 C.PI_HANDLER: "yes",
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39 C.PI_DESCRIPTION: D_("""Implementation of XMPP Ping"""),
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40 }
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41
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42 NS_PING = "urn:xmpp:ping"
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43 PING_REQUEST = C.IQ_GET + '/ping[@xmlns="' + NS_PING + '"]'
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45
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46 class XEP_0199(object):
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47
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48 def __init__(self, host):
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49 log.info(_("XMPP Ping plugin initialization"))
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50 self.host = host
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51 host.bridge.add_method(
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52 "ping", ".plugin", in_sign="ss", out_sign="d", method=self._ping, async_=True
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53 )
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54 try:
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55 self.text_cmds = self.host.plugins[C.TEXT_CMDS]
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56 except KeyError:
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57 log.info(_("Text commands not available"))
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58 else:
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59 self.text_cmds.register_text_commands(self)
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60
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61 def get_handler(self, client):
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62 return XEP_0199_handler(self)
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63
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64 def _ping_raise_if_failure(self, pong):
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65 """If ping didn't succeed, raise the failure, else return pong delay"""
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66 if pong[0] != "PONG":
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67 raise pong[0]
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68 return pong[1]
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69
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70 def _ping(self, jid_s, profile):
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71 client = self.host.get_client(profile)
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72 entity_jid = jid.JID(jid_s)
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73 d = self.ping(client, entity_jid)
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74 d.addCallback(self._ping_raise_if_failure)
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75 return d
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76
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77 def _ping_cb(self, iq_result, send_time):
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78 receive_time = time.time()
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79 return ("PONG", receive_time - send_time)
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80
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81 def _ping_eb(self, failure_, send_time):
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82 receive_time = time.time()
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83 return (failure_.value, receive_time - send_time)
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84
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85 def ping(self, client, entity_jid):
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86 """Ping an XMPP entity
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87
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88 @param entity_jid(jid.JID): entity to ping
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89 @return (tuple[(unicode,failure), float]): pong data:
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90 - either u"PONG" if it was successful, or failure
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91 - delay between sending time and reception time
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92 """
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93 iq_elt = client.IQ("get")
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94 iq_elt["to"] = entity_jid.full()
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95 iq_elt.addElement((NS_PING, "ping"))
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96 d = iq_elt.send()
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97 send_time = time.time()
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98 d.addCallback(self._ping_cb, send_time)
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99 d.addErrback(self._ping_eb, send_time)
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100 return d
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101
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102 def _cmd_ping_fb(self, pong, client, mess_data):
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103 """Send feedback to client when pong data is received"""
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104 txt_cmd = self.host.plugins[C.TEXT_CMDS]
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105
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106 if pong[0] == "PONG":
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107 txt_cmd.feed_back(client, "PONG ({time} s)".format(time=pong[1]), mess_data)
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108 else:
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109 txt_cmd.feed_back(
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110 client,
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111 _("ping error ({err_msg}). Response time: {time} s").format(
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112 err_msg=pong[0], time=pong[1]
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113 ),
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114 mess_data,
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115 )
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116
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117 def cmd_ping(self, client, mess_data):
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118 """ping an entity
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119
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120 @command (all): [JID]
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121 - JID: jid of the entity to ping
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122 """
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123 if mess_data["unparsed"].strip():
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124 try:
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125 entity_jid = jid.JID(mess_data["unparsed"].strip())
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126 except RuntimeError:
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127 txt_cmd = self.host.plugins[C.TEXT_CMDS]
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128 txt_cmd.feed_back(
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129 client,
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130 _('Invalid jid: "{entity_jid}"').format(
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131 entity_jid=mess_data["unparsed"].strip()
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132 ),
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133 mess_data,
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134 )
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135 return False
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136 else:
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137 entity_jid = mess_data["to"]
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138 d = self.ping(client, entity_jid)
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139 d.addCallback(self._cmd_ping_fb, client, mess_data)
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140
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141 return False
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142
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143 def on_ping_request(self, iq_elt, client):
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144 log.info(
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145 _("XMPP PING received from {from_jid} [{profile}]").format(
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146 from_jid=iq_elt["from"], profile=client.profile
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147 )
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148 )
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149 iq_elt.handled = True
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150 iq_result_elt = xmlstream.toResponse(iq_elt, "result")
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151 client.send(iq_result_elt)
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152
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153
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154 @implementer(iwokkel.IDisco)
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155 class XEP_0199_handler(xmlstream.XMPPHandler):
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156
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157 def __init__(self, plugin_parent):
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158 self.plugin_parent = plugin_parent
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159
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160 def connectionInitialized(self):
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161 self.xmlstream.addObserver(
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162 PING_REQUEST, self.plugin_parent.on_ping_request, client=self.parent
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163 )
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164
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165 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
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166 return [disco.DiscoFeature(NS_PING)]
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167
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168 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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169 return []