annotate sat/plugins/plugin_xep_0297.py @ 4048:04e21d6c9188

plugin XEP-0320: Use of DTLS-SRTP in Jingle Sessions: rel 421
author Goffi <goffi@goffi.org>
date Mon, 15 May 2023 17:02:40 +0200
parents 524856bd7b19
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 Stanza Forwarding (XEP-0297)
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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 sat.core.constants import Const as C
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22 from sat.core.i18n import _, D_
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23 from sat.core.log import getLogger
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24
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25 from twisted.internet import defer
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26
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27 log = getLogger(__name__)
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29 from wokkel import disco, iwokkel
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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 from zope.interface import implementer
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36
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37 from twisted.words.xish import domish
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38
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39 PLUGIN_INFO = {
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40 C.PI_NAME: "Stanza Forwarding",
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41 C.PI_IMPORT_NAME: "XEP-0297",
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42 C.PI_TYPE: "XEP",
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43 C.PI_PROTOCOLS: ["XEP-0297"],
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44 C.PI_MAIN: "XEP_0297",
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45 C.PI_HANDLER: "yes",
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46 C.PI_DESCRIPTION: D_("""Implementation of Stanza Forwarding"""),
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47 }
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48
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49
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50 class XEP_0297(object):
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51 # FIXME: check this implementation which doesn't seems to be used
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52
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53 def __init__(self, host):
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54 log.info(_("Stanza Forwarding plugin initialization"))
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55 self.host = host
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56
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57 def get_handler(self, client):
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58 return XEP_0297_handler(self, client.profile)
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59
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60 @classmethod
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61 def update_uri(cls, element, uri):
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62 """Update recursively the element URI.
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63
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64 @param element (domish.Element): element to update
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65 @param uri (unicode): new URI
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66 """
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67 # XXX: we need this because changing the URI of an existing element
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68 # containing children doesn't update the children's blank URI.
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69 element.uri = uri
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70 element.defaultUri = uri
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71 for child in element.children:
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72 if isinstance(child, domish.Element) and not child.uri:
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73 XEP_0297.update_uri(child, uri)
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75 def forward(self, stanza, to_jid, stamp, body="", profile_key=C.PROF_KEY_NONE):
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76 """Forward a message to the given JID.
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77
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78 @param stanza (domish.Element): original stanza to be forwarded.
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79 @param to_jid (JID): recipient JID.
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80 @param stamp (datetime): offset-aware timestamp of the original reception.
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81 @param body (unicode): optional description.
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82 @param profile_key (unicode): %(doc_profile_key)s
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83 @return: a Deferred when the message has been sent
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84 """
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85 # FIXME: this method is not used and doesn't use mess_data which should be used for client.send_message_data
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86 # should it be deprecated? A method constructing the element without sending it seems more natural
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87 log.warning(
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88 "THIS METHOD IS DEPRECATED"
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89 ) #  FIXME: we use this warning until we check the method
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90 msg = domish.Element((None, "message"))
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91 msg["to"] = to_jid.full()
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92 msg["type"] = stanza["type"]
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93
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94 body_elt = domish.Element((None, "body"))
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95 if body:
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96 body_elt.addContent(body)
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97
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98 forwarded_elt = domish.Element((C.NS_FORWARD, "forwarded"))
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99 delay_elt = self.host.plugins["XEP-0203"].delay(stamp)
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100 forwarded_elt.addChild(delay_elt)
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101 if not stanza.uri: # None or ''
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102 XEP_0297.update_uri(stanza, "jabber:client")
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103 forwarded_elt.addChild(stanza)
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104
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105 msg.addChild(body_elt)
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106 msg.addChild(forwarded_elt)
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107
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108 client = self.host.get_client(profile_key)
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109 return defer.ensureDeferred(client.send_message_data({"xml": msg}))
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110
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111
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112 @implementer(iwokkel.IDisco)
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113 class XEP_0297_handler(XMPPHandler):
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114
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115 def __init__(self, plugin_parent, profile):
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116 self.plugin_parent = plugin_parent
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117 self.host = plugin_parent.host
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118 self.profile = profile
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119
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120 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
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121 return [disco.DiscoFeature(C.NS_FORWARD)]
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122
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123 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
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124 return []