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annotate src/plugins/plugin_xep_0070.py @ 2138:6e509ee853a8

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plugin OTR, core; use of new sendMessage + OTR mini refactoring: - new client.sendMessage method is used instead of sendMessageToStream - client.feedback is used in OTR - OTR now add message processing hints and carbon private element as recommanded by XEP-0364. Explicit Message Encryption is still TODO - OTR use the new sendMessageFinish trigger, this has a number of advantages: * there is little risk that OTR is skipped by other plugins (they have to use client.sendMessage as recommanded) * being at the end of the chain, OTR can check and remove any HTML or other leaking elements * OTR doesn't have to skip other plugins anymore, this means that things like delivery receipts are now working with OTR (but because there is not full stanza encryption, they can leak metadata) * OTR can decide to follow storage hint by letting or deleting "history" key
author Goffi <goffi@goffi.org>
date Sun, 05 Feb 2017 15:00:01 +0100
parents 6a66c8c5a567
children 1d3f73e065e1
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rev   line source
2005
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
diff changeset
1 #!/usr/bin/python
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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2 # -*- coding: utf-8 -*-
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3
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4 # SAT plugin for managing xep-0070
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5 # Copyright (C) 2009-2016 Geoffrey POUZET (chteufleur@kingpenguin.tk)
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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
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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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 from sat.core.i18n import _, D_
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20 from sat.core.log import getLogger
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21 from twisted.words.protocols.jabber import xmlstream
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22 from twisted.words.protocols import jabber
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23 log = getLogger(__name__)
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24 from sat.tools import xml_tools
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25
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26 from wokkel import disco, iwokkel
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27 from zope.interface import implements
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28 try:
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29 from twisted.words.protocols.xmlstream import XMPPHandler
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30 except ImportError:
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31 from wokkel.subprotocols import XMPPHandler
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32
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33
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34 NS_HTTP_AUTH = 'http://jabber.org/protocol/http-auth'
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35
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36 IQ = 'iq'
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37 IQ_GET = '/'+IQ+'[@type="get"]'
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38 IQ_HTTP_AUTH_REQUEST = IQ_GET + '/confirm[@xmlns="' + NS_HTTP_AUTH + '"]'
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39
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40 MSG = 'message'
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41 MSG_GET = '/'+MSG+'[@type="normal"]'
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42 MSG_HTTP_AUTH_REQUEST = MSG_GET + '/confirm[@xmlns="' + NS_HTTP_AUTH + '"]'
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45 PLUGIN_INFO = {
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46 "name": "XEP-0070 Plugin",
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47 "import_name": "XEP-0070",
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48 "type": "XEP",
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49 "protocols": ["XEP-0070"],
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50 "dependencies": [],
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51 "main": "XEP_0070",
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52 "handler": "yes",
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53 "description": _("""Implementation of HTTP Requests via XMPP""")
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54 }
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55
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56
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57 class XEP_0070(object):
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58 """
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59 Implementation for XEP 0070.
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60 """
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61
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62 def __init__(self, host):
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63 log.info(_(u"Plugin XEP_0070 initialization"))
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64 self.host = host
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65 self._dictRequest = dict()
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66
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67 def getHandler(self, profile):
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68 return XEP_0070_handler(self, profile)
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69
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70 def onHttpAuthRequestIQ(self, iq_elt, client):
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71 """This method is called on confirmation request received (XEP-0070 #4.5)
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72
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73 @param iq_elt: IQ element
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74 @param client: %(doc_client)s
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75 """
2005
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76 log.info(_("XEP-0070 Verifying HTTP Requests via XMPP (iq)"))
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77 self._treatHttpAuthRequest(iq_elt, IQ, client)
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78
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79 def onHttpAuthRequestMsg(self, msg_elt, client):
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80 """This method is called on confirmation request received (XEP-0070 #4.5)
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81
2005
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82 @param msg_elt: message element
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83 @param client: %(doc_client)s
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84 """
2005
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85 log.info(_("XEP-0070 Verifying HTTP Requests via XMPP (message)"))
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86 self._treatHttpAuthRequest(msg_elt, MSG, client)
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87
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88 def _treatHttpAuthRequest(self, elt, stanzaType, client):
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89 elt.handled = True
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90 auth_elt = elt.elements(NS_HTTP_AUTH, 'confirm').next()
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91 auth_id = auth_elt['id']
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92 auth_method = auth_elt['method']
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93 auth_url = auth_elt['url']
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94 self._dictRequest[client] = (auth_id, auth_method, auth_url, stanzaType, elt)
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95
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96 confirm_ui = xml_tools.XMLUI("form", title=D_(u"Auth confirmation"), submit_id='')
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97 confirm_ui.addText(D_(u"{} needs to validate your identity, do you agree ?".format(auth_url)))
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98 confirm_ui.addText(D_(u"Validation code : {}".format(auth_id)))
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99 confirm_ui.addText(D_(u"Please check that this code is the same as on {}".format(auth_url)))
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100 confirm_ui.addText(u"")
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101 confirm_ui.addText(D_(u"Submit to authorize, cancel otherwise."))
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102 d = xml_tools.deferredUI(self.host, confirm_ui, chained=False)
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103 d.addCallback(self._authRequestCallback, client.profile)
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104 self.host.actionNew({u"xmlui": confirm_ui.toXml()}, profile=client.profile)
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105
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106 def _authRequestCallback(self, result, profile):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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107 client = self.host.getClient(profile)
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108 try:
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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109 cancelled = result['cancelled']
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110 except KeyError:
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parents:
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111 cancelled = False
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parents:
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112
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113 authorized = False
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114
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115 if cancelled:
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116 auth_id, auth_method, auth_url, stanzaType, elt = self._dictRequest[client]
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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117 del self._dictRequest[client]
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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118 authorized = False
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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119 else:
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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120 try:
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parents:
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121 auth_id, auth_method, auth_url, stanzaType, elt = self._dictRequest[client]
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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122 del self._dictRequest[client]
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123 authorized = True
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124 except KeyError:
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parents:
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125 authorized = False
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126
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127 if authorized:
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128 if (stanzaType == IQ):
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129 # iq
2094
438a49dbfe87 xep-0070: fixed use of byte string instead of unicode
Goffi <goffi@goffi.org>
parents: 2014
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130 log.debug(_(u"XEP-0070 reply iq"))
2005
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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131 iq_result_elt = xmlstream.toResponse(elt, 'result')
2129
6a66c8c5a567 core: replaced calls to client.xmlstream.send by client.send which is the right method to use. client.xmlstream should not be used directly
Goffi <goffi@goffi.org>
parents: 2094
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132 client.send(iq_result_elt)
2005
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133 elif (stanzaType == MSG):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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134 # message
2094
438a49dbfe87 xep-0070: fixed use of byte string instead of unicode
Goffi <goffi@goffi.org>
parents: 2014
diff changeset
135 log.debug(_(u"XEP-0070 reply message"))
2005
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parents:
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136 msg_result_elt = xmlstream.toResponse(elt, 'result')
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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137 msg_result_elt.addChild(elt.elements(NS_HTTP_AUTH, 'confirm').next())
2129
6a66c8c5a567 core: replaced calls to client.xmlstream.send by client.send which is the right method to use. client.xmlstream should not be used directly
Goffi <goffi@goffi.org>
parents: 2094
diff changeset
138 client.send(msg_result_elt)
2005
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parents:
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139 else:
2094
438a49dbfe87 xep-0070: fixed use of byte string instead of unicode
Goffi <goffi@goffi.org>
parents: 2014
diff changeset
140 log.debug(_(u"XEP-0070 reply error"))
2005
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
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141 result_elt = jabber.error.StanzaError("not-authorized").toResponse(elt)
2129
6a66c8c5a567 core: replaced calls to client.xmlstream.send by client.send which is the right method to use. client.xmlstream should not be used directly
Goffi <goffi@goffi.org>
parents: 2094
diff changeset
142 client.send(result_elt)
2005
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parents:
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143
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144
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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145 class XEP_0070_handler(XMPPHandler):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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146 implements(iwokkel.IDisco)
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parents:
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147
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parents:
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148 def __init__(self, plugin_parent, profile):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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149 self.plugin_parent = plugin_parent
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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150 self.host = plugin_parent.host
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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151 self.profile = profile
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152
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parents:
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153 def connectionInitialized(self):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
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154 self.xmlstream.addObserver(IQ_HTTP_AUTH_REQUEST, self.plugin_parent.onHttpAuthRequestIQ, client=self.parent)
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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155 self.xmlstream.addObserver(MSG_HTTP_AUTH_REQUEST, self.plugin_parent.onHttpAuthRequestMsg, client=self.parent)
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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156
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
diff changeset
157 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
diff changeset
158 return [disco.DiscoFeature(NS_HTTP_AUTH)]
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
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parents:
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159
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
diff changeset
160 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
2afd5bd781ef plugin XEP-0070: implementation of XEP-0070 (verifying HTTP request via XMPP)
Geoffrey POUZET <chteufleur@kingpenguin.tk>
parents:
diff changeset
161 return []