Mercurial > libervia-backend

annotate src/plugins/plugin_xep_0047.py @ 1573:6338677f3a89

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core (client): added a sendError method to easily build error response from <IQ\> stanza
author Goffi <goffi@goffi.org>
date Wed, 11 Nov 2015 14:56:05 +0100
parents 6a8dd91476f0
children 7fef6cdf5953
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/python
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for managing gateways (xep-0047)
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
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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 _
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21 from sat.core.log import getLogger
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22 log = getLogger(__name__)
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23 from sat.core.constants import Const as C
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24 from sat.core import exceptions
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25 from twisted.words.protocols.jabber import client as jabber_client
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26 from twisted.words.protocols.jabber import jid
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27 from twisted.words.protocols.jabber import xmlstream
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28 from twisted.words.protocols.jabber import error
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29 from twisted.internet import reactor
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30 from twisted.internet import defer
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31 from twisted.python import failure
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32
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33 from wokkel import disco, iwokkel
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34
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35 from zope.interface import implements
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36
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37 import base64
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38
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39 try:
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40 from twisted.words.protocols.xmlstream import XMPPHandler
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41 except ImportError:
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42 from wokkel.subprotocols import XMPPHandler
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43
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44 MESSAGE = '/message'
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45 IQ_SET = '/iq[@type="set"]'
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46 NS_IBB = 'http://jabber.org/protocol/ibb'
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47 IBB_OPEN = IQ_SET + '/open[@xmlns="' + NS_IBB + '"]'
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48 IBB_CLOSE = IQ_SET + '/close[@xmlns="' + NS_IBB + '" and @sid="{}"]'
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49 IBB_IQ_DATA = IQ_SET + '/data[@xmlns="' + NS_IBB + '" and @sid="{}"]'
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50 IBB_MESSAGE_DATA = MESSAGE + '/data[@xmlns="' + NS_IBB + '" and @sid="{}"]'
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51 TIMEOUT = 60 # timeout for workflow
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52 DEFER_KEY = 'finished' # key of the deferred used to track session end
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53
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54 PLUGIN_INFO = {
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55 "name": "In-Band Bytestream Plugin",
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56 "import_name": "XEP-0047",
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57 "type": "XEP",
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58 "protocols": ["XEP-0047"],
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59 "main": "XEP_0047",
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60 "handler": "yes",
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61 "description": _("""Implementation of In-Band Bytestreams""")
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62 }
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63
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64
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65 class XEP_0047(object):
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66 NAMESPACE = NS_IBB
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67 BLOCK_SIZE = 4096
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68
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69 def __init__(self, host):
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70 log.info(_("In-Band Bytestreams plugin initialization"))
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71 self.host = host
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72
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73 def getHandler(self, profile):
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74 return XEP_0047_handler(self)
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75
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76 def profileConnected(self, profile):
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77 client = self.host.getClient(profile)
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78 client.xep_0047_current_stream = {} # key: stream_id, value: data(dict)
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79
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80 def _timeOut(self, sid, client):
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81 """Delete current_stream id, called after timeout
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82
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83 @param sid(unicode): session id of client.xep_0047_current_stream
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84 @param client: %(doc_client)s
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85 """
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86 log.info(_("In-Band Bytestream: TimeOut reached for id {sid} [{profile}]")
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87 .format(sid=sid, profile=client.profile))
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88 self._killSession(sid, client, "TIMEOUT")
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89
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90 def _killSession(self, sid, client, failure_reason=None):
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91 """Delete a current_stream id, clean up associated observers
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92
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93 @param sid(unicode): session id
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94 @param client: %(doc_client)s
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95 @param failure_reason(None, unicode): if None the session is successful
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96 else, will be used to call failure_cb
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97 """
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98 try:
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99 session = client.xep_0047_current_stream[sid]
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100 except KeyError:
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101 log.warning(_("kill id called on a non existant id"))
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102 return
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103
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104 try:
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105 observer_cb = session['observer_cb']
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106 except KeyError:
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107 pass
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108 else:
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109 client.xmlstream.removeObserver(session["event_data"], observer_cb)
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110
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111 if session['timer'].active():
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112 session['timer'].cancel()
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113
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114 del client.xep_0047_current_stream[sid]
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115
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116 success = failure_reason is None
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117 stream_d = session[DEFER_KEY]
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118
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119 if success:
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120 stream_d.callback(None)
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121 else:
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diff changeset
122 stream_d.errback(failure.Failure(exceptions.DataError(failure_reason)))
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
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123
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
124 def createSession(self, *args, **kwargs):
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Goffi <goffi@goffi.org>
parents: 1409
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125 """like [_createSession] but return the session deferred instead of the whole session
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parents: 585
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126
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
127 session deferred is fired when transfer is finished
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
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128 """
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
129 return self._createSession(*args, **kwargs)[DEFER_KEY]
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Goffi <goffi@goffi.org>
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130
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
131 def _createSession(self, file_obj, to_jid, sid, profile):
384
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parents:
diff changeset
132 """Called when a bytestream is imminent
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133
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
134 @param file_obj(file): File object where data will be written
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
135 @param to_jid(jid.JId): jid of the other peer
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
136 @param sid(unicode): session id
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
137 @param profile: %(doc_profile)s
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
138 @return (dict): session data
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
139 """
538
2c4016921403 core, frontends, bridgen plugins: fixed methods which were unproperly managing multi-profiles
Goffi <goffi@goffi.org>
parents: 536
diff changeset
140 client = self.host.getClient(profile)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
141 if sid in client.xep_0047_current_stream:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
142 raise exceptions.ConflictError(u'A session with this id already exists !')
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
143 session_data = client.xep_0047_current_stream[sid] = \
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
144 {'id': sid,
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
145 DEFER_KEY: defer.Deferred(),
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
146 'to': to_jid,
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
147 'file_obj': file_obj,
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
148 'seq': -1,
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
149 'timer': reactor.callLater(TIMEOUT, self._timeOut, sid, client),
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Goffi <goffi@goffi.org>
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150 }
384
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151
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152 return session_data
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153
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
154 def _onIBBOpen(self, iq_elt, profile):
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
155 """"Called when an IBB <open> element is received
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Goffi <goffi@goffi.org>
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156
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
157 @param iq_elt(domish.Element): the whole <iq> stanza
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
158 @param profile: %(doc_profile)s
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Goffi <goffi@goffi.org>
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159 """
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
160 log.debug(_(u"IBB stream opening"))
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
161 iq_elt.handled = True
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parents: 536
diff changeset
162 client = self.host.getClient(profile)
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parents: 1409
diff changeset
163 open_elt = iq_elt.elements(NS_IBB, 'open').next()
384
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parents:
diff changeset
164 block_size = open_elt.getAttribute('block-size')
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Goffi <goffi@goffi.org>
parents:
diff changeset
165 sid = open_elt.getAttribute('sid')
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Goffi <goffi@goffi.org>
parents:
diff changeset
166 stanza = open_elt.getAttribute('stanza', 'iq')
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
167 if not sid or not block_size or int(block_size) > 65535:
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168 return self._sendError('not-acceptable', sid or None, iq_elt, client)
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Goffi <goffi@goffi.org>
parents: 536
diff changeset
169 if not sid in client.xep_0047_current_stream:
1409
3265a2639182 massive (preventive) addition of 'u' (unicode) before the strings passed to logging functions
souliane <souliane@mailoo.org>
parents: 1396
diff changeset
170 log.warning(_(u"Ignoring unexpected IBB transfer: %s" % sid))
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
171 return self._sendError('not-acceptable', sid or None, iq_elt, client)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
172 session_data = client.xep_0047_current_stream[sid]
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
173 if session_data["to"] != jid.JID(iq_elt['from']):
993
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parents: 941
diff changeset
174 log.warning(_("sended jid inconsistency (man in the middle attack attempt ?)"))
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
175 return self._sendError('not-acceptable', sid, iq_elt, client)
384
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parents:
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176
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diff changeset
177 # at this stage, the session looks ok and will be accepted
384
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178
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diff changeset
179 # we reset the timeout:
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
180 session_data["timer"].reset(TIMEOUT)
384
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181
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diff changeset
182 # we save the xmlstream, events and observer data to allow observer removal
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
183 session_data["event_data"] = event_data = (IBB_MESSAGE_DATA if stanza == 'message' else IBB_IQ_DATA).format(sid)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
184 session_data["observer_cb"] = observer_cb = self._onIBBData
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
185 event_close = IBB_CLOSE.format(sid)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
186 # we now set the stream observer to look after data packet
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
187 # FIXME: if we never get the events, the observers stay.
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
188 # would be better to have generic observer and check id once triggered
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
189 client.xmlstream.addObserver(event_data, observer_cb, profile=profile)
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diff changeset
190 client.xmlstream.addOnetimeObserver(event_close, self._onIBBClose, profile=profile)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
191 # finally, we send the accept stanza
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
192 iq_result_elt = xmlstream.toResponse(iq_elt, 'result')
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parents: 1409
diff changeset
193 client.xmlstream.send(iq_result_elt)
384
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diff changeset
194
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diff changeset
195 def _onIBBClose(self, iq_elt, profile):
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
196 """"Called when an IBB <close> element is received
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
197
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
198 @param iq_elt(domish.Element): the whole <iq> stanza
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
199 @param profile: %(doc_profile)s
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Goffi <goffi@goffi.org>
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diff changeset
200 """
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
201 iq_elt.handled = True
538
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Goffi <goffi@goffi.org>
parents: 536
diff changeset
202 client = self.host.getClient(profile)
993
301b342c697a core: use of the new core.log module:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
203 log.debug(_("IBB stream closing"))
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
204 close_elt = iq_elt.elements(NS_IBB, 'close').next()
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
205 # XXX: this observer is only triggered on valid sid, so we don't need to check it
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parents: 1409
diff changeset
206 sid = close_elt['sid']
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
207
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
208 iq_result_elt = xmlstream.toResponse(iq_elt, 'result')
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
209 client.xmlstream.send(iq_result_elt)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
210 self._killSession(sid, client)
384
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parents:
diff changeset
211
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diff changeset
212 def _onIBBData(self, element, profile):
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parents: 1409
diff changeset
213 """Observer called on <iq> or <message> stanzas with data element
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parents: 1409
diff changeset
214
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
215 Manage the data elelement (check validity and write to the file_obj)
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
216 @param element(domish.Element): <iq> or <message> stanza
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
217 @param profile: %(doc_profile)s
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
218 """
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
219 element.handled = True
538
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Goffi <goffi@goffi.org>
parents: 536
diff changeset
220 client = self.host.getClient(profile)
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parents: 1409
diff changeset
221 data_elt = element.elements(NS_IBB, 'data').next()
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
222 sid = data_elt['sid']
384
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parents:
diff changeset
223
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
224 try:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
225 session_data = client.xep_0047_current_stream[sid]
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
226 except KeyError:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
227 log.warning(_(u"Received data for an unknown session id"))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
228 return self._sendError('item-not-found', None, element, client)
384
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parents:
diff changeset
229
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parents: 1409
diff changeset
230 from_jid = session_data["to"]
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
231 file_obj = session_data["file_obj"]
384
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parents:
diff changeset
232
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parents: 1409
diff changeset
233 if from_jid.full() != element['from']:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
234 log.warning(_(u"sended jid inconsistency (man in the middle attack attempt ?)\ninitial={initial}\ngiven={given}").format(initial=from_jid, given=element['from']))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
235 if element.name == 'iq':
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
236 self._sendError('not-acceptable', sid, element, client)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
237 return
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
238
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
239 session_data["seq"] = (session_data["seq"] + 1) % 65535
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
240 if int(data_elt.getAttribute("seq", -1)) != session_data["seq"]:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
241 log.warning(_(u"Sequence error"))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
242 if element.name == 'iq':
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
243 reason = 'not-acceptable'
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
244 self._sendError(reason, sid, element, client)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
245 self.terminateStream(session_data, client, reason)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
246 return
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
247
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
248 # we reset the timeout:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
249 session_data["timer"].reset(TIMEOUT)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
250
1524
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
251 # we can now decode the data
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
252 try:
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
253 file_obj.write(base64.b64decode(str(data_elt)))
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
254 except TypeError:
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7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
255 # The base64 data is invalid
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
256 log.warning(_(u"Invalid base64 data"))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
257 if element.name == 'iq':
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
258 self._sendError('not-acceptable', sid, element, client)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
259 self.terminateStream(session_data, client, reason)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
260 return
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
261
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
262 # we can now ack success
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
263 if element.name == 'iq':
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
264 iq_result_elt = xmlstream.toResponse(element, 'result')
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
265 client.xmlstream.send(iq_result_elt)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
266
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
267 def _sendError(self, error_condition, sid, iq_elt, client):
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
268 """Send error stanza
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
269
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
270 @param error_condition: one of twisted.words.protocols.jabber.error.STANZA_CONDITIONS keys
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
271 @param sid(unicode,None): jingle session id, or None, if session must not be destroyed
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
272 @param iq_elt(domish.Element): full <iq> stanza
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
273 @param client: %(doc_client)s
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
274 """
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
275 iq_elt = error.StanzaError(error_condition).toResponse(iq_elt)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
276 log.warning(u"Error while managing in-band bytestream session, cancelling: {}".format(error_condition))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
277 if sid is not None:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
278 self._killSession(sid, client, error_condition)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
279 client.xmlstream.send(iq_elt)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
280
1558
6a8dd91476f0 plugin XEP-0047: minor improvements
Goffi <goffi@goffi.org>
parents: 1524
diff changeset
281 def startStream(self, file_obj, to_jid, sid, block_size=None, profile=C.PROF_KEY_NONE):
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
282 """Launch the stream workflow
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
283
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
284 @param file_obj(file): file_obj to send
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
285 @param to_jid(jid.JID): JID of the recipient
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
286 @param sid(unicode): Stream session id
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
287 @param block_size(int, None): size of the block (or None for default)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
288 @param profile: %(doc_profile)s
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
289 """
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
290 session_data = self._createSession(file_obj, to_jid, sid, profile)
538
2c4016921403 core, frontends, bridgen plugins: fixed methods which were unproperly managing multi-profiles
Goffi <goffi@goffi.org>
parents: 536
diff changeset
291 client = self.host.getClient(profile)
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
292
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
293 if block_size is None:
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
294 block_size = XEP_0047.BLOCK_SIZE
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
295 assert block_size <= 65535
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
296 session_data["block_size"] = block_size
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
297
1558
6a8dd91476f0 plugin XEP-0047: minor improvements
Goffi <goffi@goffi.org>
parents: 1524
diff changeset
298 iq_elt = jabber_client.IQ(client.xmlstream, 'set') # FIXME: use client.IQ here
538
2c4016921403 core, frontends, bridgen plugins: fixed methods which were unproperly managing multi-profiles
Goffi <goffi@goffi.org>
parents: 536
diff changeset
299 iq_elt['from'] = client.jid.full()
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
300 iq_elt['to'] = to_jid.full()
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
301 open_elt = iq_elt.addElement('open', NS_IBB)
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
302 open_elt['block-size'] = str(block_size)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
303 open_elt['sid'] = sid
1524
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
304 open_elt['stanza'] = 'iq' # TODO: manage <message> stanza ?
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
305 iq_elt.addCallback(self._IQDataStream, session_data, client)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
306 iq_elt.send()
1558
6a8dd91476f0 plugin XEP-0047: minor improvements
Goffi <goffi@goffi.org>
parents: 1524
diff changeset
307 return session_data[DEFER_KEY]
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
308
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
309 def _IQDataStream(self, session_data, client, iq_elt):
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
310 """Called during the whole data streaming
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
311
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
312 @param session_data(dict): data of this streaming session
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
313 @param client: %(doc_client)s
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
314 @param iq_elt(domish.Element): iq result
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
315 """
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
316 if iq_elt['type'] == 'error':
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
317 log.warning(_(u"IBB transfer failed: {}").format(iq_elt))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
318 self.terminateStream(session_data, client, "IQ_ERROR")
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
319 return
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
320
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
321 session_data["timer"].reset(TIMEOUT)
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
322
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
323 buffer_ = session_data["file_obj"].read(session_data["block_size"])
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
324 if buffer_:
1558
6a8dd91476f0 plugin XEP-0047: minor improvements
Goffi <goffi@goffi.org>
parents: 1524
diff changeset
325 next_iq_elt = jabber_client.IQ(client.xmlstream, 'set') # FIXME: use client.IQ here
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
326 next_iq_elt['to'] = session_data["to"].full()
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
327 data_elt = next_iq_elt.addElement('data', NS_IBB)
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
328 seq = session_data['seq'] = (session_data['seq'] + 1) % 65535
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
329 data_elt['seq'] = unicode(seq)
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
330 data_elt['sid'] = session_data['id']
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
331 data_elt.addContent(base64.b64encode(buffer_))
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
332 next_iq_elt.addCallback(self._IQDataStream, session_data, client)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
333 next_iq_elt.send()
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
334 else:
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
335 self.terminateStream(session_data, client)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
336
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
337 def terminateStream(self, session_data, client, failure_reason=None):
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
338 """Terminate the stream session
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
339
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
340 @param session_data(dict): data of this streaming session
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
341 @param client: %(doc_client)s
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
342 @param failure_reason(unicode, None): reason of the failure, or None if steam was successful
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
343 """
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
344 iq_elt = jabber_client.IQ(client.xmlstream, 'set')
1524
7b0fcefd52d4 plugin XEP-0047, XEP-0096: In-Band Bystream plugin cleaning:
Goffi <goffi@goffi.org>
parents: 1409
diff changeset
345 iq_elt['to'] = session_data["to"].full()
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
346 close_elt = iq_elt.addElement('close', NS_IBB)
1524
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
347 close_elt['sid'] = session_data['id']
384
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Goffi <goffi@goffi.org>
parents:
diff changeset
348 iq_elt.send()
1524
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
349 self._killSession(session_data['id'], client, failure_reason)
384
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Goffi <goffi@goffi.org>
parents:
diff changeset
350
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
351
384
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Goffi <goffi@goffi.org>
parents:
diff changeset
352 class XEP_0047_handler(XMPPHandler):
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
353 implements(iwokkel.IDisco)
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
354
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
355 def __init__(self, parent):
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
356 self.plugin_parent = parent
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 585
diff changeset
357
384
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Goffi <goffi@goffi.org>
parents:
diff changeset
358 def connectionInitialized(self):
1524
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Goffi <goffi@goffi.org>
parents: 1409
diff changeset
359 self.xmlstream.addObserver(IBB_OPEN, self.plugin_parent._onIBBOpen, profile=self.parent.profile)
384
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
360
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
361 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
362 return [disco.DiscoFeature(NS_IBB)]
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
363
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
364 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
785420cd63f7 plugins: In-Band Bytestreams (XEP-0047) implementation
Goffi <goffi@goffi.org>
parents:
diff changeset
365 return []