Mercurial > libervia-backend

annotate src/plugins/plugin_exp_jingle_stream.py @ 2528:65e278997715

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component file sharing: comments metadata: new <comments> element is added to file metadata, it contains the URL to the comments virtual node and the count of comments (this way client knows if it make sense to request comments or not). Fixed triggers in plugin XEP-0264 (return value was missing). New trigger in plugin XEP-0329 to allow component to add metadata (used here for comments url).
author Goffi <goffi@goffi.org>
date Fri, 16 Mar 2018 18:43:11 +0100
parents e2a7bb875957
children
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rev   line source
1934
2daf7b4c6756 use of /usr/bin/env instead of /usr/bin/python in shebang
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1 #!/usr/bin/env python2
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for managing pipes (experimental)
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5 # Copyright (C) 2009-2018 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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11
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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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19
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20 from sat.core.i18n import _, D_
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21 from sat.core.constants import Const as C
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22 from sat.core import exceptions
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23 from sat.core.log import getLogger
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24 log = getLogger(__name__)
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25 from sat.tools import xml_tools
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26 from sat.tools import stream
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27 from twisted.words.xish import domish
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28 from twisted.words.protocols.jabber import jid
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29 from twisted.internet import defer
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30 from twisted.internet import protocol
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31 from twisted.internet import endpoints
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32 from twisted.internet import reactor
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33 from twisted.internet import error
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34 from twisted.internet import interfaces
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35 from zope import interface
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36 import errno
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37
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38 NS_STREAM = 'http://salut-a-toi.org/protocol/stream'
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39 SECURITY_LIMIT=30
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40 START_PORT = 8888
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41
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42 PLUGIN_INFO = {
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43 C.PI_NAME: "Jingle Stream Plugin",
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44 C.PI_IMPORT_NAME: "STREAM",
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45 C.PI_TYPE: "EXP",
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46 C.PI_PROTOCOLS: [],
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47 C.PI_DEPENDENCIES: ["XEP-0166"],
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48 C.PI_MAIN: "JingleStream",
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49 C.PI_HANDLER: "no",
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50 C.PI_DESCRIPTION: _("""Jingle Stream plugin""")
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51 }
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52
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53 CONFIRM = D_(u"{peer} wants to send you a stream, do you accept ?")
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54 CONFIRM_TITLE = D_(u"Stream Request")
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55
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56
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57 class StreamProtocol(protocol.Protocol):
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58
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59 def __init__(self):
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60 self.pause = False
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61
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62 def setPause(self, paused):
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63 # in Python 2.x, Twisted classes are old style
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64 # so we can use property and setter
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65 if paused:
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66 if not self.pause:
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67 self.transport.pauseProducing()
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68 self.pause = True
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69 else:
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70 if self.pause:
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71 self.transport.resumeProducing()
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72 self.pause = False
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73
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74 def disconnect(self):
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75 self.transport.loseConnection()
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76
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77 def connectionMade(self):
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78 if self.factory.client_conn is not None:
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79 self.transport.loseConnection()
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80 self.factory.setClientConn(self)
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81
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82 def dataReceived(self, data):
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83 self.factory.writeToConsumer(data)
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84
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85 def sendData(self, data):
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86 self.transport.write(data)
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87
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88 def connectionLost(self, reason):
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89 if self.factory.client_conn != self:
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90 # only the first connected client_conn is relevant
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91 return
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92
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93 if reason.type == error.ConnectionDone:
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94 self.factory.streamFinished()
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95 else:
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96 self.factory.streamFailed(reason)
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97
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98
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99 @interface.implementer(stream.IStreamProducer)
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100 @interface.implementer(interfaces.IPushProducer)
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101 @interface.implementer(interfaces.IConsumer)
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102 class StreamFactory(protocol.Factory):
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103 protocol = StreamProtocol
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104 consumer = None
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105 producer = None
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106 deferred = None
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107
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108 def __init__(self):
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109 self.client_conn = None
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110
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111 def setClientConn(self, stream_protocol):
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112 # in Python 2.x, Twisted classes are old style
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113 # so we can use property and setter
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114 assert self.client_conn is None
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115 self.client_conn = stream_protocol
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116 if self.consumer is None:
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117 self.client_conn.setPause(True)
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118
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119 def startStream(self, consumer):
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120 if self.consumer is not None:
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121 raise exceptions.InternalError(_(u"stream can't be used with multiple consumers"))
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122 assert self.deferred is None
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123 self.consumer = consumer
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124 consumer.registerProducer(self, True)
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125 self.deferred = defer.Deferred()
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126 if self.client_conn is not None:
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127 self.client_conn.setPause(False)
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parents: 2483
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128 return self.deferred
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129
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130 def streamFinished(self):
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131 self.client_conn = None
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132 if self.consumer:
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133 self.consumer.unregisterProducer()
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parents: 2483
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134 self.port_listening.stopListening()
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parents: 2483
diff changeset
135 self.deferred.callback(None)
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136
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137 def streamFailed(self, failure_):
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138 self.client_conn = None
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139 if self.consumer:
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diff changeset
140 self.consumer.unregisterProducer()
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parents: 2483
diff changeset
141 self.port_listening.stopListening()
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Goffi <goffi@goffi.org>
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142 self.deferred.errback(failure_)
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Goffi <goffi@goffi.org>
parents: 2483
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143 elif self.producer:
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Goffi <goffi@goffi.org>
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diff changeset
144 self.producer.stopProducing()
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145
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Goffi <goffi@goffi.org>
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146 def stopStream(self):
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147 if self.client_conn is not None:
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148 self.client_conn.disconnect()
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149
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150 def registerProducer(self, producer, streaming):
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151 self.producer = producer
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152
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153 def pauseProducing(self):
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154 self.client_conn.setPause(True)
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155
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156 def resumeProducing(self):
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157 self.client_conn.setPause(False)
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158
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Goffi <goffi@goffi.org>
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159 def stopProducing(self):
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Goffi <goffi@goffi.org>
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160 if self.client_conn:
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Goffi <goffi@goffi.org>
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diff changeset
161 self.client_conn.disconnect()
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162
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Goffi <goffi@goffi.org>
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163 def write(self, data):
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Goffi <goffi@goffi.org>
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164 try:
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165 self.client_conn.sendData(data)
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Goffi <goffi@goffi.org>
parents: 2483
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166 except AttributeError:
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Goffi <goffi@goffi.org>
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diff changeset
167 log.warning(_(u"No client connected, can't send data"))
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168
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diff changeset
169 def writeToConsumer(self, data):
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170 self.consumer.write(data)
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diff changeset
171
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172
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Goffi <goffi@goffi.org>
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diff changeset
173 class JingleStream(object):
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Goffi <goffi@goffi.org>
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174 """This non standard jingle application send byte stream"""
401
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
175
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
176 def __init__(self, host):
2489
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177 log.info(_("Plugin Stream initialization"))
401
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
178 self.host = host
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179 self._j = host.plugins["XEP-0166"] # shortcut to access jingle
2489
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180 self._j.registerApplication(NS_STREAM, self)
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diff changeset
181 host.bridge.addMethod("streamOut", ".plugin", in_sign='ss', out_sign='s', method=self._streamOut, async=True)
1669
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Goffi <goffi@goffi.org>
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diff changeset
182 # jingle callbacks
401
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parents:
diff changeset
183
2489
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184 def _streamOut(self, to_jid_s, profile_key):
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diff changeset
185 client = self.host.getClient(profile_key)
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parents: 2483
diff changeset
186 return self.streamOut(client, jid.JID(to_jid_s))
401
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
187
2489
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diff changeset
188 @defer.inlineCallbacks
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Goffi <goffi@goffi.org>
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diff changeset
189 def streamOut(self, client, to_jid):
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parents: 2483
diff changeset
190 """send a stream
401
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
191
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parents: 1409
diff changeset
192 @param peer_jid(jid.JID): recipient
401
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
193 @return: an unique id to identify the transfer
b2caa2615c4c jp roster name manegement + Pipe transfer
Goffi <goffi@goffi.org>
parents:
diff changeset
194 """
2489
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195 port = START_PORT
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
196 factory = StreamFactory()
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
197 while True:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
198 endpoint = endpoints.TCP4ServerEndpoint(reactor, port)
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
199 try:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
200 port_listening = yield endpoint.listen(factory)
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
201 except error.CannotListenError as e:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
202 if e.socketError.errno == errno.EADDRINUSE:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
203 port += 1
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
204 else:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
205 raise e
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
206 else:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
207 factory.port_listening = port_listening
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
208 break
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
209 self._j.initiate(client,
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
210 to_jid,
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
211 [{'app_ns': NS_STREAM,
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
212 'senders': self._j.ROLE_INITIATOR,
2489
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parents: 2483
diff changeset
213 'app_kwargs': {'stream_object': factory},
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
214 }])
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
215 defer.returnValue(unicode(port))
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
216
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
217 def jingleSessionInit(self, client, session, content_name, stream_object):
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
218 content_data = session['contents'][content_name]
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
219 application_data = content_data['application_data']
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
220 assert 'stream_object' not in application_data
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
221 application_data['stream_object'] = stream_object
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
222 desc_elt = domish.Element((NS_STREAM, 'description'))
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
223 return desc_elt
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
224
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
225 @defer.inlineCallbacks
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
226 def jingleRequestConfirmation(self, client, action, session, content_name, desc_elt):
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
227 """This method request confirmation for a jingle session"""
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
228 content_data = session['contents'][content_name]
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
229 if content_data['senders'] not in (self._j.ROLE_INITIATOR, self._j.ROLE_RESPONDER):
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
230 log.warning(u"Bad sender, assuming initiator")
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
231 content_data['senders'] = self._j.ROLE_INITIATOR
587
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
232
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
233 confirm_data = yield xml_tools.deferDialog(self.host,
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
234 _(CONFIRM).format(peer=session['peer_jid'].full()),
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
235 _(CONFIRM_TITLE),
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
236 type_=C.XMLUI_DIALOG_CONFIRM,
1669
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
237 action_extra={'meta_from_jid': session['peer_jid'].full(),
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
238 'meta_type': "STREAM",
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
239 },
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
240 security_limit=SECURITY_LIMIT,
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
241 profile=client.profile)
1669
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
242
2489
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
243 if not C.bool(confirm_data['answer']):
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Goffi <goffi@goffi.org>
parents: 2483
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244 defer.returnValue(False)
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Goffi <goffi@goffi.org>
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245 try:
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Goffi <goffi@goffi.org>
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246 port = int(confirm_data['port'])
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247 except (ValueError, KeyError):
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248 raise exceptions.DataError(_(u'given port is invalid'))
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249 endpoint = endpoints.TCP4ClientEndpoint(reactor, 'localhost', port)
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250 factory = StreamFactory()
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Goffi <goffi@goffi.org>
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251 yield endpoint.connect(factory)
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252 content_data['stream_object'] = factory
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parents: 2483
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253 finished_d = content_data['finished_d'] = defer.Deferred()
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parents: 2483
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254 args = [client, session, content_name, content_data]
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255 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args)
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parents: 2483
diff changeset
256 defer.returnValue(True)
401
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parents:
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257
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258 def jingleHandler(self, client, action, session, content_name, desc_elt):
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parents: 1409
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259 content_data = session['contents'][content_name]
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260 application_data = content_data['application_data']
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parents: 1409
diff changeset
261 if action in (self._j.A_ACCEPTED_ACK, self._j.A_SESSION_INITIATE):
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
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parents: 1409
diff changeset
262 pass
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
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parents: 1409
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263 elif action == self._j.A_SESSION_ACCEPT:
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
264 assert not 'stream_object' in content_data
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parents: 2483
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265 content_data['stream_object'] = application_data['stream_object']
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parents: 1409
diff changeset
266 finished_d = content_data['finished_d'] = defer.Deferred()
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parents: 2483
diff changeset
267 args = [client, session, content_name, content_data]
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697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
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parents: 1409
diff changeset
268 finished_d.addCallbacks(self._finishedCb, self._finishedEb, args, None, args)
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
269 else:
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
270 log.warning(u"FIXME: unmanaged action {}".format(action))
697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
271 return desc_elt
401
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272
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273 def _finishedCb(self, dummy, client, session, content_name, content_data):
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parents: 1409
diff changeset
274 log.info(u"Pipe transfer completed")
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parents: 2483
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275 self._j.contentTerminate(client, session, content_name)
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
276 content_data['stream_object'].stopStream()
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697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
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277
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parents: 2483
diff changeset
278 def _finishedEb(self, failure, client, session, content_name, content_data):
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697effba0310 plugin pipe: rewritten plugin as a jingle application. The current implentation can, in some cases, block the backend, and is experimental only. Improvments are needed in the future.
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
279 log.warning(u"Error while streaming pipe: {}".format(failure))
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parents: 2483
diff changeset
280 self._j.contentTerminate(client, session, content_name, reason=self._j.REASON_FAILED_TRANSPORT)
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
281 content_data['stream_object'].stopStream()