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annotate libervia/backend/plugins/plugin_xep_0298.py @ 4292:dd0891d0b22b

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plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation: This is the first draft of XEP-0298 implementation. The focus is to implement elements needed for A/V Conferences protoXEP. rel 447
author Goffi <goffi@goffi.org>
date Mon, 29 Jul 2024 03:31:13 +0200
parents
children a0ed5c976bf8
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4292
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
1 #!/usr/bin/env python3
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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2
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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3
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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4 # Libervia plugin to handle events
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5 # Copyright (C) 2009-2022 Jérôme Poisson (goffi@goffi.org)
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6
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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7 # This program is free software: you can redistribute it and/or modify
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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8 # it under the terms of the GNU Affero General Public License as published by
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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9 # the Free Software Foundation, either version 3 of the License, or
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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10 # (at your option) any later version.
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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11
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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12 # This program is distributed in the hope that it will be useful,
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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15 # GNU Affero General Public License for more details.
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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16
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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17 # You should have received a copy of the GNU Affero General Public License
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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18 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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19
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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20 from urllib.parse import quote, unquote
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21 from twisted.words.protocols.jabber import jid
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22 from twisted.words.xish import domish
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23 from libervia.backend.core.i18n import _
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24 from libervia.backend.core.constants import Const as C
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25 from libervia.backend.core.log import getLogger
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26 from wokkel import disco, iwokkel
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27 from zope.interface import implementer
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28 from twisted.words.protocols.jabber.xmlstream import XMPPHandler
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29
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30 log = getLogger(__name__)
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31
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32
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33 PLUGIN_INFO = {
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34 C.PI_NAME: "Events",
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35 C.PI_IMPORT_NAME: "XEP-0298",
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36 C.PI_TYPE: "XEP",
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37 C.PI_MODES: C.PLUG_MODE_BOTH,
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38 C.PI_PROTOCOLS: [],
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39 C.PI_DEPENDENCIES: [],
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40 C.PI_MAIN: "XEP_0298",
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41 C.PI_HANDLER: "yes",
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42 C.PI_DESCRIPTION: _(
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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43 "Delivering Conference Information to Jingle Participants (Coin). This plugin "
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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44 "is used to associate metadata about uses an call states in multi-party calls."
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45 ),
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46 }
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47
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48 NS_COIN = "urn:xmpp:coin:1"
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49 NS_CONFERENCE_INFO = "urn:ietf:params:xml:ns:conference-info"
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50
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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51
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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52 class XEP_0298:
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53 namespace = NS_COIN
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54
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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55 def __init__(self, host):
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56 log.info(f"plugin {PLUGIN_INFO[C.PI_NAME]!r} initialization")
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57 self.host = host
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58
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59 def get_handler(self, client):
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60 return CoinHandler(self)
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61
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62 def add_conference_info(
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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63 self, jingle_elt: domish.Element, is_focus: bool = False, **kwargs
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
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64 ) -> domish.Element:
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65 """Create and return a <conference_info> element
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66
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67 @param jingle_elt: parent element
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68 @param kwargs: attributes of the element.
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69 @return: created <conference-info> element.
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70 """
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71 conference_info_elt = jingle_elt.addElement(
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72 (NS_CONFERENCE_INFO, "conference-info"),
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73 )
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74 if is_focus:
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75 conference_info_elt["isfocus"] = C.BOOL_TRUE
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76 conference_info_elt.attributes.update(kwargs)
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77 return conference_info_elt
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78
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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79 def add_user(
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80 self, conference_info_elt: domish.Element, entity: jid.JID
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81 ) -> domish.Element:
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82 """Add an user to a cconference info element.
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83
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84 If the parent <users> doesn't exist, it will be created.
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85 @param conference_info_elt: <conference-info> element where the <user> element
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86 need to be added
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87 @param entity: XMPP JID to use as entity.
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88 @return: created <user> element.
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89 """
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90 try:
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91 users_elt = next(conference_info_elt.elements(NS_CONFERENCE_INFO, "users"))
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92 except StopIteration:
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93 users_elt = conference_info_elt.addElement("users")
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94
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95 user_elt = users_elt.addElement("user")
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96 user_elt["entity"] = f"xmpp:{quote(entity.userhost())}"
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97 return user_elt
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98
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99 def parse(self, jingle_elt: domish.Element) -> dict:
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100 """Parse a Jingle element and return a dictionary with conference info if present.
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101
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102 @param jingle_elt: Jingle element to parse.
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103 @return: Dictionary with "info" key if conference info is found.
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104 """
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105 try:
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106 conference_info_elt = next(
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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107 jingle_elt.elements((NS_CONFERENCE_INFO, "conference-info"))
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108 )
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109 except StopIteration:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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110 return {}
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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111
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112 users = []
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113 try:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
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114 users_elt = next(conference_info_elt.elements(NS_CONFERENCE_INFO, "users"))
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Goffi <goffi@goffi.org>
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115 for user_elt in users_elt.elements(NS_CONFERENCE_INFO, "user"):
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116 entity = user_elt.getAttribute("entity")
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117 if entity.startswith("xmpp:"):
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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118 try:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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119 entity = jid.JID(unquote(entity[5:]))
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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120 users.append(entity)
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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121 except Exception as e:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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122 log.warning(f"Failed to parse entity {entity!r}: {e}")
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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123 else:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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124 log.warning(f"Ignoring non-XMPP entity {entity!r}")
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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125 except StopIteration:
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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126 pass
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
127
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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128 return {"info": {"users": users}}
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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129
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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130
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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131 @implementer(iwokkel.IDisco)
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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132 class CoinHandler(XMPPHandler):
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
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133
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
134 def __init__(self, plugin_parent):
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
135 self.plugin_parent = plugin_parent
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
136
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
137 def getDiscoInfo(self, requestor, target, nodeIdentifier=""):
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
138 return [
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
139 disco.DiscoFeature(NS_COIN),
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
140 ]
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
141
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
142 def getDiscoItems(self, requestor, target, nodeIdentifier=""):
dd0891d0b22b plugin XEP-0298: Delivering Conference Information to Jingle Participants (Coin) implementation:
Goffi <goffi@goffi.org>
parents:
diff changeset
143 return []