Mercurial > libervia-backend

annotate libervia/backend/plugins/plugin_xep_0199.py @ 4242:8acf46ed7f36

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frontends: remote control implementation: This is the frontends common part of remote control implementation. It handle the creation of WebRTC session, and management of inputs. For now the reception use freedesktop.org Desktop portal, and works mostly with Wayland based Desktop Environments. rel 436
author Goffi <goffi@goffi.org>
date Sat, 11 May 2024 13:52:43 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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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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44
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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 try:
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54 self.text_cmds = self.host.plugins[C.TEXT_CMDS]
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55 except KeyError:
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56 log.info(_("Text commands not available"))
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57 else:
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58 self.text_cmds.register_text_commands(self)
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59
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60 def get_handler(self, client):
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61 return XEP_0199_handler(self)
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62
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63 def _ping_raise_if_failure(self, pong):
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64 """If ping didn't succeed, raise the failure, else return pong delay"""
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65 if pong[0] != "PONG":
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66 raise pong[0]
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67 return pong[1]
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68
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69 def _ping(self, jid_s, profile):
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70 client = self.host.get_client(profile)
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71 entity_jid = jid.JID(jid_s)
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72 d = self.ping(client, entity_jid)
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73 d.addCallback(self._ping_raise_if_failure)
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74 return d
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75
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76 def _ping_cb(self, iq_result, send_time):
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77 receive_time = time.time()
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78 return ("PONG", receive_time - send_time)
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79
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80 def _ping_eb(self, failure_, send_time):
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81 receive_time = time.time()
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82 return (failure_.value, receive_time - send_time)
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83
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84 def ping(self, client, entity_jid):
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85 """Ping an XMPP entity
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86
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87 @param entity_jid(jid.JID): entity to ping
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88 @return (tuple[(unicode,failure), float]): pong data:
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89 - either u"PONG" if it was successful, or failure
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90 - delay between sending time and reception time
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91 """
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92 iq_elt = client.IQ("get")
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93 iq_elt["to"] = entity_jid.full()
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94 iq_elt.addElement((NS_PING, "ping"))
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95 d = iq_elt.send()
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96 send_time = time.time()
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97 d.addCallback(self._ping_cb, send_time)
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98 d.addErrback(self._ping_eb, send_time)
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99 return d
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100
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101 def _cmd_ping_fb(self, pong, client, mess_data):
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102 """Send feedback to client when pong data is received"""
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103 txt_cmd = self.host.plugins[C.TEXT_CMDS]
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104
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105 if pong[0] == "PONG":
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106 txt_cmd.feed_back(client, "PONG ({time} s)".format(time=pong[1]), mess_data)
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107 else:
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108 txt_cmd.feed_back(
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109 client, _("ping error ({err_msg}). Response time: {time} s")
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110 .format(err_msg=pong[0], time=pong[1]), mess_data)
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111
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112 def cmd_ping(self, client, mess_data):
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113 """ping an entity
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114
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115 @command (all): [JID]
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116 - JID: jid of the entity to ping
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117 """
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118 if mess_data["unparsed"].strip():
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119 try:
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120 entity_jid = jid.JID(mess_data["unparsed"].strip())
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121 except RuntimeError:
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122 txt_cmd = self.host.plugins[C.TEXT_CMDS]
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123 txt_cmd.feed_back(client, _('Invalid jid: "{entity_jid}"').format(
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124 entity_jid=mess_data["unparsed"].strip()), mess_data)
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125 return False
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126 else:
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127 entity_jid = mess_data["to"]
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128 d = self.ping(client, entity_jid)
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129 d.addCallback(self._cmd_ping_fb, client, mess_data)
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130
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131 return False
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132
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133 def on_ping_request(self, iq_elt, client):
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134 log.info(_("XMPP PING received from {from_jid} [{profile}]").format(
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135 from_jid=iq_elt["from"], profile=client.profile))
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136 iq_elt.handled = True
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137 iq_result_elt = xmlstream.toResponse(iq_elt, "result")
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138 client.send(iq_result_elt)
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139
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140
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141 @implementer(iwokkel.IDisco)
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142 class XEP_0199_handler(xmlstream.XMPPHandler):
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143
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144 def __init__(self, plugin_parent):
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145 self.plugin_parent = plugin_parent
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146
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147 def connectionInitialized(self):
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148 self.xmlstream.addObserver(
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149 PING_REQUEST, self.plugin_parent.on_ping_request, client=self.parent
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150 )
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151
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152 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
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153 return [disco.DiscoFeature(NS_PING)]
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154
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155 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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156 return []