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annotate sat/plugins/plugin_xep_0163.py @ 4048:04e21d6c9188

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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
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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 Personal Eventing Protocol (xep-0163)
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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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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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20 from typing import Optional, Callable
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21 from sat.core.i18n import _
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22 from sat.core import exceptions
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23 from sat.core.constants import Const as C
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24 from sat.core.log import getLogger
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26 from twisted.words.xish import domish
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28 from wokkel import disco, pubsub
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29 from wokkel.formats import Mood
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30 from sat.tools.common import data_format
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33 log = getLogger(__name__)
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34
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35 NS_USER_MOOD = "http://jabber.org/protocol/mood"
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37 PLUGIN_INFO = {
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38 C.PI_NAME: "Personal Eventing Protocol Plugin",
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39 C.PI_IMPORT_NAME: "XEP-0163",
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40 C.PI_TYPE: "XEP",
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41 C.PI_MODES: C.PLUG_MODE_BOTH,
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42 C.PI_PROTOCOLS: ["XEP-0163", "XEP-0107"],
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43 C.PI_DEPENDENCIES: ["XEP-0060"],
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44 C.PI_MAIN: "XEP_0163",
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45 C.PI_HANDLER: "no",
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46 C.PI_DESCRIPTION: _("""Implementation of Personal Eventing Protocol"""),
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47 }
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49
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50 class XEP_0163(object):
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51 def __init__(self, host):
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52 log.info(_("PEP plugin initialization"))
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53 self.host = host
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54 self.pep_events = set()
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55 self.pep_out_cb = {}
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56 host.trigger.add("PubSub Disco Info", self.diso_info_trigger)
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57 host.bridge.add_method(
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58 "pep_send",
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59 ".plugin",
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60 in_sign="sa{ss}s",
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61 out_sign="",
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62 method=self.pep_send,
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63 async_=True,
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64 ) # args: type(MOOD, TUNE, etc), data, profile_key;
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65 self.add_pep_event("MOOD", NS_USER_MOOD, self.user_mood_cb, self.send_mood)
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66
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67 def diso_info_trigger(self, disco_info, profile):
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68 """Add info from managed PEP
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69
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70 @param disco_info: list of disco feature as returned by PubSub,
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71 will be filled with PEP features
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72 @param profile: profile we are handling
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73 """
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74 disco_info.extend(list(map(disco.DiscoFeature, self.pep_events)))
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75 return True
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76
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77 def add_pep_event(
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78 self,
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79 event_type: Optional[str],
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80 node: str,
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81 in_callback: Callable,
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82 out_callback: Optional[Callable] = None,
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83 notify: bool = True
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84 ) -> None:
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85 """Add a Personal Eventing Protocol event manager
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86
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87 @param event_type: type of the event (stored uppercase),
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88 only used when out_callback is set.
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89 Can be MOOD, TUNE, etc.
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90 @param node: namespace of the node (e.g. http://jabber.org/protocol/mood
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91 for User Mood)
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92 @param in_callback: method to call when this event occur
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93 the callable will be called with (itemsEvent, profile) as arguments
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94 @param out_callback: method to call when we want to publish this
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95 event (must return a deferred)
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96 the callable will be called when send_pep_event is called
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97 @param notify: add autosubscribe (+notify) if True
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98 """
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99 if event_type and out_callback:
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100 event_type = event_type.upper()
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101 if event_type in self.pep_out_cb:
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102 raise exceptions.ConflictError(
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103 f"event_type {event_type!r} already exists"
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104 )
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105 self.pep_out_cb[event_type] = out_callback
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106 self.pep_events.add(node)
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107 if notify:
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108 self.pep_events.add(node + "+notify")
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109
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110 def filter_pep_event(client, itemsEvent):
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111 """Ignore messages which are not coming from PEP (i.e. a bare jid)
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112
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113 @param itemsEvent(pubsub.ItemsEvent): pubsub event
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114 """
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115 if not itemsEvent.sender.user or itemsEvent.sender.resource:
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116 log.debug(
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117 "ignoring non PEP event from {} (profile={})".format(
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118 itemsEvent.sender.full(), client.profile
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119 )
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120 )
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121 return
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122 in_callback(itemsEvent, client.profile)
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123
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124 self.host.plugins["XEP-0060"].add_managed_node(node, items_cb=filter_pep_event)
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125
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126 def send_pep_event(self, node, data, profile):
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127 """Publish the event data
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128
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129 @param node(unicode): node namespace
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130 @param data: domish.Element to use as payload
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131 @param profile: profile which send the data
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132 """
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133 client = self.host.get_client(profile)
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134 item = pubsub.Item(payload=data)
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135 return self.host.plugins["XEP-0060"].publish(client, None, node, [item])
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136
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137 def pep_send(self, event_type, data, profile_key=C.PROF_KEY_NONE):
286
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138 """Send personal event after checking the data is alright
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139
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140 @param event_type: type of event (eg: MOOD, TUNE),
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141 must be in self.pep_out_cb.keys()
286
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142 @param data: dict of {string:string} of event_type dependant data
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143 @param profile_key: profile who send the event
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144 """
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145 profile = self.host.memory.get_profile_name(profile_key)
286
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146 if not profile:
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147 log.error(
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148 _("Trying to send personal event with an unknown profile key [%s]")
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149 % profile_key
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150 )
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151 raise exceptions.ProfileUnknownError
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152 if not event_type in list(self.pep_out_cb.keys()):
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153 log.error(_("Trying to send personal event for an unknown type"))
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154 raise exceptions.DataError("Type unknown")
290
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155 return self.pep_out_cb[event_type](data, profile)
286
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156
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157 def user_mood_cb(self, itemsEvent, profile):
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158 if not itemsEvent.items:
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159 log.debug(_("No item found"))
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160 return
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161 try:
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162 mood_elt = [
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163 child for child in itemsEvent.items[0].elements() if child.name == "mood"
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164 ][0]
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165 except IndexError:
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166 log.error(_("Can't find mood element in mood event"))
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167 return
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168 mood = Mood.fromXml(mood_elt)
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169 if not mood:
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170 log.debug(_("No mood found"))
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171 return
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172 self.host.bridge.ps_event(
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173 C.PS_PEP,
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174 itemsEvent.sender.full(),
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175 itemsEvent.nodeIdentifier,
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176 "MOOD",
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parents: 2771
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177 data_format.serialise({"mood": mood.value or "", "text": mood.text or ""}),
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178 profile,
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179 )
286
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diff changeset
180
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181 def send_mood(self, data, profile):
286
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182 """Send XEP-0107's User Mood
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183
286
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184 @param data: must include mood and text
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185 @param profile: profile which send the mood"""
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186 try:
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187 value = data["mood"].lower()
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188 text = data["text"] if "text" in data else ""
286
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parents: 283
diff changeset
189 except KeyError:
704
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diff changeset
190 raise exceptions.DataError("Mood data must contain at least 'mood' key")
660
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191 mood = UserMood(value, text)
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192 return self.send_pep_event(NS_USER_MOOD, mood, profile)
286
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parents: 283
diff changeset
193
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parents: 588
diff changeset
194
286
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diff changeset
195 class UserMood(Mood, domish.Element):
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196 """Improved wokkel Mood which is also a domish.Element"""
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197
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diff changeset
198 def __init__(self, value, text=None):
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199 Mood.__init__(self, value, text)
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200 domish.Element.__init__(self, (NS_USER_MOOD, "mood"))
286
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diff changeset
201 self.addElement(value)
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202 if text:
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203 self.addElement("text", content=text)