annotate src/plugins/plugin_xep_0297.py @ 1573:6338677f3a89

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 069ad98b360d
children d17772b0fe22
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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 Stanza Forwarding (XEP-0297)
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5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014, 2015 Jérôme Poisson (goffi@goffi.org)
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6 # Copyright (C) 2013, 2014, 2015 Adrien Cossa (souliane@mailoo.org)
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7
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8 # This program is free software: you can redistribute it and/or modify
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9 # it under the terms of the GNU Affero General Public License as published by
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10 # the Free Software Foundation, either version 3 of the License, or
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11 # (at your option) any later version.
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12
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13 # This program is distributed in the hope that it will be useful,
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14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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16 # GNU Affero General Public License for more details.
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17
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18 # You should have received a copy of the GNU Affero General Public License
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19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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20
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21 from sat.core.constants import Const as C
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22 from sat.core.i18n import _
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23 from sat.core.log import getLogger
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24 log = getLogger(__name__)
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25
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26 from wokkel import disco, iwokkel
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27 try:
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28 from twisted.words.protocols.xmlstream import XMPPHandler
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29 except ImportError:
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30 from wokkel.subprotocols import XMPPHandler
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31 from zope.interface import implements
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32
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33 from twisted.words.xish import domish
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34
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35 NS_SF = 'urn:xmpp:forward:0'
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36
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37 PLUGIN_INFO = {
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38 "name": "Stanza Forwarding",
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39 "import_name": "XEP-0297",
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40 "type": "XEP",
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41 "protocols": ["XEP-0297"],
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42 "main": "XEP_0297",
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43 "handler": "yes",
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44 "description": _("""Implementation of Stanza Forwarding""")
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45 }
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46
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47
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48 class XEP_0297(object):
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49
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50 def __init__(self, host):
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51 log.info(_("Stanza Forwarding plugin initialization"))
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52 self.host = host
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53
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54 def getHandler(self, profile):
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55 return XEP_0297_handler(self, profile)
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56
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57 @classmethod
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58 def updateUri(cls, element, uri):
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59 """Update recursively the element URI.
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60
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61 @param element (domish.Element): element to update
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62 @param uri (unicode): new URI
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63 """
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64 # XXX: we need this because changing the URI of an existing element
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65 # containing children doesn't update the children's blank URI.
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66 element.uri = uri
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67 element.defaultUri = uri
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68 for child in element.children:
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69 if isinstance(child, domish.Element) and not child.uri:
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70 XEP_0297.updateUri(child, uri)
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71
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72 def forward(self, stanza, to_jid, stamp, body='', profile_key=C.PROF_KEY_NONE):
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73 """Forward a message to the given JID.
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74
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75 @param stanza (domish.Element): original stanza to be forwarded.
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76 @param to_jid (JID): recipient JID.
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77 @param stamp (datetime): offset-aware timestamp of the original reception.
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78 @param body (unicode): optional description.
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79 @param profile_key (unicode): %(doc_profile_key)s
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80 @return: a Deferred when the message has been sent
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81 """
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82 msg = domish.Element((None, 'message'))
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83 msg['to'] = to_jid.full()
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84 msg['type'] = stanza['type']
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85
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86 body_elt = domish.Element((None, 'body'))
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87 if body:
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88 body_elt.addContent(body)
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89
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90 forwarded_elt = domish.Element((NS_SF, 'forwarded'))
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91 delay_elt = self.host.plugins['XEP-0203'].delay(stamp)
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92 forwarded_elt.addChild(delay_elt)
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93 if not stanza.uri: # None or ''
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94 XEP_0297.updateUri(stanza, 'jabber:client')
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95 forwarded_elt.addChild(stanza)
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96
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97 msg.addChild(body_elt)
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98 msg.addChild(forwarded_elt)
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99
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100 client = self.host.getClient(profile_key)
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101 return client.xmlstream.send(msg.toXml())
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102
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103
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104 class XEP_0297_handler(XMPPHandler):
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105 implements(iwokkel.IDisco)
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106
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107 def __init__(self, plugin_parent, profile):
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108 self.plugin_parent = plugin_parent
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109 self.host = plugin_parent.host
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110 self.profile = profile
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111
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112 def getDiscoInfo(self, requestor, target, nodeIdentifier=''):
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113 return [disco.DiscoFeature(NS_SF)]
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114
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115 def getDiscoItems(self, requestor, target, nodeIdentifier=''):
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116 return []