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annotate sat/memory/disco.py @ 2607:4c086cf7af66

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core (version): added workaround for Pyjamas, avoiding crash when reading VERSION
author Goffi <goffi@goffi.org>
date Sun, 03 Jun 2018 13:54:35 +0200
parents e70023e84974
children 56f94936df1e
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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: a jabber client
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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 _
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21 from sat.core import exceptions
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22 from sat.core.log import getLogger
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23 log = getLogger(__name__)
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24 from twisted.words.protocols.jabber import jid
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25 from twisted.words.protocols.jabber.error import StanzaError
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26 from twisted.internet import defer
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27 from twisted.internet import reactor
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28 from twisted.python import failure
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29 from sat.core.constants import Const as C
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30 from sat.tools import xml_tools
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31 from sat.memory import persistent
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32 from wokkel import disco
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33 from base64 import b64encode
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34 from hashlib import sha1
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36
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37 TIMEOUT = 15
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38 CAP_HASH_ERROR = 'ERROR'
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40 class HashGenerationError(Exception):
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41 pass
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42
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43
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44 class ByteIdentity(object):
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45 """This class manage identity as bytes (needed for i;octet sort), it is used for the hash generation"""
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47 def __init__(self, identity, lang=None):
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48 assert isinstance(identity, disco.DiscoIdentity)
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49 self.category = identity.category.encode('utf-8')
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50 self.idType = identity.type.encode('utf-8')
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51 self.name = identity.name.encode('utf-8') if identity.name else ''
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52 self.lang = lang.encode('utf-8') if lang is not None else ''
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53
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54 def __str__(self):
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55 return "%s/%s/%s/%s" % (self.category, self.idType, self.lang, self.name)
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56
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57
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58 class HashManager(object):
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59 """map object which manage hashes
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61 persistent storage is update when a new hash is added
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62 """
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63
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64 def __init__(self, persistent):
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65 self.hashes = {
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66 CAP_HASH_ERROR: disco.DiscoInfo(), # used when we can't get disco infos
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67 }
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68 self.persistent = persistent
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69
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70 def __getitem__(self, key):
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71 return self.hashes[key]
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72
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73 def __setitem__(self, hash_, disco_info):
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74 if hash_ in self.hashes:
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75 log.debug(u"ignoring hash set: it is already known")
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76 return
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77 self.hashes[hash_] = disco_info
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78 self.persistent[hash_] = disco_info.toElement().toXml()
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79
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80 def __contains__(self, hash_):
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81 return self.hashes.__contains__(hash_)
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82
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83 def load(self):
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84 def fillHashes(hashes):
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85 for hash_, xml in hashes.iteritems():
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86 element = xml_tools.ElementParser()(xml)
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87 disco_info = disco.DiscoInfo.fromElement(element)
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88 if not disco_info.features and not disco_info.identities:
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89 log.warning(_(u"no feature/identity found in disco element (hash: {cap_hash}), ignoring: {xml}").format(
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90 cap_hash=hash_, xml=xml))
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91 else:
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92 self.hashes[hash_] = disco_info
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94 log.info(u"Disco hashes loaded")
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95 d = self.persistent.load()
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96 d.addCallback(fillHashes)
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97 return d
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98
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99
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100 class Discovery(object):
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101 """ Manage capabilities of entities """
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102
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103 def __init__(self, host):
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104 self.host = host
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105 # TODO: remove legacy hashes
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106
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107 def load(self):
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108 """Load persistent hashes"""
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109 self.hashes = HashManager(persistent.PersistentDict("disco"))
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110 return self.hashes.load()
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111
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112 @defer.inlineCallbacks
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113 def hasFeature(self, client, feature, jid_=None, node=u''):
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114 """Tell if an entity has the required feature
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115
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116 @param feature: feature namespace
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117 @param jid_: jid of the target, or None for profile's server
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118 @param node(unicode): optional node to use for disco request
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119 @return: a Deferred which fire a boolean (True if feature is available)
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120 """
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121 disco_infos = yield self.getInfos(client, jid_, node)
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
122 defer.returnValue(feature in disco_infos.features)
951
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
123
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
124 @defer.inlineCallbacks
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
125 def checkFeature(self, client, feature, jid_=None, node=u''):
951
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
126 """Like hasFeature, but raise an exception is feature is not Found
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
127
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
128 @param feature: feature namespace
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
129 @param jid_: jid of the target, or None for profile's server
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
130 @param node(unicode): optional node to use for disco request
951
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
131
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
132 @raise: exceptions.FeatureNotFound
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
133 """
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
134 disco_infos = yield self.getInfos(client, jid_, node)
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
135 if not feature in disco_infos.features:
1493
1285c714a6cc core (disco): use of failure.Failure when raising FeatureNotFound to avoid a jump in debugger in debug mode
Goffi <goffi@goffi.org>
parents: 1491
diff changeset
136 raise failure.Failure(exceptions.FeatureNotFound)
1491
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
137
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
138 @defer.inlineCallbacks
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
139 def checkFeatures(self, client, features, jid_=None, identity=None, node=u''):
1491
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
140 """Like checkFeature, but check several features at once, and check also identity
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
141
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
142 @param features(iterable[unicode]): features to check
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
143 @param jid_(jid.JID): jid of the target, or None for profile's server
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
144 @param node(unicode): optional node to use for disco request
1491
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
145 @param identity(None, tuple(unicode, unicode): if not None, the entity must have an identity with this (category, type) tuple
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
146
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
147 @raise: exceptions.FeatureNotFound
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
148 """
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
149 disco_infos = yield self.getInfos(client, jid_, node)
1491
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
150 if not set(features).issubset(disco_infos.features):
1493
1285c714a6cc core (disco): use of failure.Failure when raising FeatureNotFound to avoid a jump in debugger in debug mode
Goffi <goffi@goffi.org>
parents: 1491
diff changeset
151 raise failure.Failure(exceptions.FeatureNotFound())
1491
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
152
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
153 if identity is not None and identity not in disco_infos.identities:
1493
1285c714a6cc core (disco): use of failure.Failure when raising FeatureNotFound to avoid a jump in debugger in debug mode
Goffi <goffi@goffi.org>
parents: 1491
diff changeset
154 raise failure.Failure(exceptions.FeatureNotFound())
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
Goffi <goffi@goffi.org>
parents:
diff changeset
155
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
156 def getInfos(self, client, jid_=None, node=u'', use_cache=True):
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
157 """get disco infos from jid_, filling capability hash if needed
594
e629371a28d3 Fix pep8 support in src/plugins.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 588
diff changeset
158
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
159 @param jid_: jid of the target, or None for profile's server
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
160 @param node(unicode): optional node to use for disco request
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
161 @param use_cache(bool): if True, use cached data if available
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
162 @return: a Deferred which fire disco.DiscoInfo
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
163 """
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
164 if jid_ is None:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
165 jid_ = jid.JID(client.jid.host)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
166 try:
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
167 if not use_cache:
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
168 # we ignore cache, so we pretend we haven't found it
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
169 raise KeyError
2587
e70023e84974 core (disco): fixed disco capabilities (empty disco was used)
Goffi <goffi@goffi.org>
parents: 2562
diff changeset
170 cap_hash = self.host.memory.getEntityData(jid_, [C.ENTITY_CAP_HASH], client.profile)[C.ENTITY_CAP_HASH]
1290
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
171 except (KeyError, exceptions.UnknownEntityError):
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
172 # capability hash is not available, we'll compute one
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
173 def infosCb(disco_infos):
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
174 cap_hash = self.generateHash(disco_infos)
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
175 self.hashes[cap_hash] = disco_infos
1315
be3a301540c0 core (memory): updateEntityData now accept a "silent" argument to avoid sending signal to frontends when updating an attribute with "signalOnUpdate" flag.
Goffi <goffi@goffi.org>
parents: 1290
diff changeset
176 self.host.memory.updateEntityData(jid_, C.ENTITY_CAP_HASH, cap_hash, profile_key=client.profile)
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
177 return disco_infos
1752
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
178 def infosEb(fail):
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
179 if fail.check(defer.CancelledError):
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
180 reason = u"request time-out"
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
181 else:
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
182 try:
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
183 reason = unicode(fail.value)
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
184 except AttributeError:
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
185 reason = unicode(fail)
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
186 log.warning(u"Error while requesting disco infos from {jid}: {reason}".format(jid=jid_.full(), reason=reason))
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
187 self.host.memory.updateEntityData(jid_, C.ENTITY_CAP_HASH, CAP_HASH_ERROR, profile_key=client.profile)
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
188 disco_infos = self.hashes[CAP_HASH_ERROR]
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
189 return disco_infos
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
190 d = client.disco.requestInfo(jid_, nodeIdentifier=node)
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
191 d.addCallback(infosCb)
1752
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
192 d.addErrback(infosEb)
973
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
193 return d
1290
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
194 else:
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
195 disco_infos = self.hashes[cap_hash]
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
196 return defer.succeed(disco_infos)
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
197
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
198 @defer.inlineCallbacks
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
199 def getItems(self, client, jid_=None, node=u'', use_cache=True):
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
200 """get disco items from jid_, cache them for our own server
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
201
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
202 @param jid_(jid.JID): jid of the target, or None for profile's server
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
203 @param node(unicode): optional node to use for disco request
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
204 @param use_cache(bool): if True, use cached data if available
963
723f28cd15c7 core (disco): added discoInfos and discoItems bridge methods
Goffi <goffi@goffi.org>
parents: 961
diff changeset
205 @return: a Deferred which fire disco.DiscoItems
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
206 """
2407
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
207 server_jid = jid.JID(client.jid.host)
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
208 if jid_ is None:
2407
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
209 jid_ = server_jid
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
210
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
211 if jid_ == server_jid and not node:
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
212 # we cache items only for our own server and if node is not set
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
213 try:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
214 items = self.host.memory.getEntityData(jid_, ["DISCO_ITEMS"], client.profile)["DISCO_ITEMS"]
1409
3265a2639182 massive (preventive) addition of 'u' (unicode) before the strings passed to logging functions
souliane <souliane@mailoo.org>
parents: 1396
diff changeset
215 log.debug(u"[%s] disco items are in cache" % jid_.full())
2342
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
216 if not use_cache:
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
217 # we ignore cache, so we pretend we haven't found it
f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
Goffi <goffi@goffi.org>
parents: 2150
diff changeset
218 raise KeyError
1290
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
219 except (KeyError, exceptions.UnknownEntityError):
1409
3265a2639182 massive (preventive) addition of 'u' (unicode) before the strings passed to logging functions
souliane <souliane@mailoo.org>
parents: 1396
diff changeset
220 log.debug(u"Caching [%s] disco items" % jid_.full())
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
221 items = yield client.disco.requestItems(jid_, nodeIdentifier=node)
1315
be3a301540c0 core (memory): updateEntityData now accept a "silent" argument to avoid sending signal to frontends when updating an attribute with "signalOnUpdate" flag.
Goffi <goffi@goffi.org>
parents: 1290
diff changeset
222 self.host.memory.updateEntityData(jid_, "DISCO_ITEMS", items, profile_key=client.profile)
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
223 else:
1752
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
224 try:
2148
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
225 items = yield client.disco.requestItems(jid_, nodeIdentifier=node)
1752
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
226 except StanzaError as e:
cbcc223c323a core (disco): display a warning when a disco info/items request failed, and return empty DiscoInfo/DiscoITems
Goffi <goffi@goffi.org>
parents: 1684
diff changeset
227 log.warning(u"Error while requesting items for {jid}: {reason}"
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parents: 1684
diff changeset
228 .format(jid=jid_.full(), reason=e.condition))
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parents: 1684
diff changeset
229 items = disco.DiscoItems()
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230
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231 defer.returnValue(items)
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232
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diff changeset
233
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parents: 1491
diff changeset
234 def _infosEb(self, failure_, entity_jid):
1285c714a6cc core (disco): use of failure.Failure when raising FeatureNotFound to avoid a jump in debugger in debug mode
Goffi <goffi@goffi.org>
parents: 1491
diff changeset
235 failure_.trap(StanzaError)
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souliane <souliane@mailoo.org>
parents: 1396
diff changeset
236 log.warning(_(u"Error while requesting [%(jid)s]: %(error)s") % {'jid': entity_jid.full(),
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parents: 1491
diff changeset
237 'error': failure_.getErrorMessage()})
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238
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parents: 2414
diff changeset
239 def findServiceEntity(self, client, category, type_, jid_=None):
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parents: 2414
diff changeset
240 """Helper method to find first available entity from findServiceEntities
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241
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parents: 2414
diff changeset
242 args are the same as for [findServiceEntities]
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parents: 2414
diff changeset
243 @return (jid.JID, None): found entity
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parents: 2414
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244 """
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parents: 2414
diff changeset
245 d = self.host.findServiceEntities(client, "pubsub", "service")
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parents: 2414
diff changeset
246 d.addCallback(lambda entities: entities.pop() if entities else None)
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parents: 2414
diff changeset
247 return d
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parents: 2414
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248
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249 def findServiceEntities(self, client, category, type_, jid_=None):
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250 """Return all available items of an entity which correspond to (category, type_)
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251
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252 @param category: identity's category
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253 @param type_: identitiy's type
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254 @param jid_: the jid of the target server (None for profile's server)
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parents: 1416
diff changeset
255 @return: a set of found entities
1675
fd143578fe89 plugin XEP-0065: fixed bad error handling
Goffi <goffi@goffi.org>
parents: 1552
diff changeset
256 @raise defer.CancelledError: the request timed out
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parents: 941
diff changeset
257 """
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parents: 963
diff changeset
258 found_entities = set()
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parents: 963
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259
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parents: 963
diff changeset
260 def infosCb(infos, entity_jid):
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parents: 941
diff changeset
261 if (category, type_) in infos.identities:
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parents: 963
diff changeset
262 found_entities.add(entity_jid)
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parents:
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263
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diff changeset
264 def gotItems(items):
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diff changeset
265 defers_list = []
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parents: 963
diff changeset
266 for item in items:
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parents: 2096
diff changeset
267 info_d = self.getInfos(client, item.entity)
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parents: 963
diff changeset
268 info_d.addCallbacks(infosCb, self._infosEb, [item.entity], None, [item.entity])
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parents: 963
diff changeset
269 defers_list.append(info_d)
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parents: 963
diff changeset
270 return defer.DeferredList(defers_list)
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diff changeset
271
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diff changeset
272 d = self.getItems(client, jid_)
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parents: 963
diff changeset
273 d.addCallback(gotItems)
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parents: 963
diff changeset
274 d.addCallback(lambda dummy: found_entities)
1189
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parents: 993
diff changeset
275 reactor.callLater(TIMEOUT, d.cancel) # FIXME: one bad service make a general timeout
973
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diff changeset
276 return d
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parents: 963
diff changeset
277
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diff changeset
278 def findFeaturesSet(self, client, features, identity=None, jid_=None):
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diff changeset
279 """Return entities (including jid_ and its items) offering features
587
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parents: 572
diff changeset
280
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diff changeset
281 @param features: iterable of features which must be present
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parents: 1484
diff changeset
282 @param identity(None, tuple(unicode, unicode)): if not None, accept only this (category/type) identity
944
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parents: 941
diff changeset
283 @param jid_: the jid of the target server (None for profile's server)
1552
e0bde0d0b321 core (disco): use of “profile” instead of “profile_key” in several disco methods
Goffi <goffi@goffi.org>
parents: 1493
diff changeset
284 @param profile: %(doc_profile)s
944
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diff changeset
285 @return: a set of found entities
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
286 """
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
287 if jid_ is None:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
288 jid_ = jid.JID(client.jid.host)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
289 features = set(features)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
290 found_entities = set()
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
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parents:
diff changeset
291
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parents: 963
diff changeset
292 def infosCb(infos, entity):
2533
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Goffi <goffi@goffi.org>
parents: 2483
diff changeset
293 if entity is None:
8d82a62fa098 core (disco), plugin XEP-0115: client use + capabilities hash improvment:
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parents: 2483
diff changeset
294 log.warning(_(u'received an item without jid'))
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parents: 2483
diff changeset
295 return
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Goffi <goffi@goffi.org>
parents: 1484
diff changeset
296 if identity is not None and identity not in infos.identities:
704ca56f5ca9 core (disco): added checkFeatures to check several features at once + identities are now managed with a tuple in findFeaturesSet and checkFeatures
Goffi <goffi@goffi.org>
parents: 1484
diff changeset
297 return
944
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diff changeset
298 if features.issubset(infos.features):
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
299 found_entities.add(entity)
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
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parents:
diff changeset
300
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parents: 963
diff changeset
301 def gotItems(items):
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
302 defer_list = []
4a8903021fda core (disco): findFeaturesSet and findServiceEntities don't use inlineCallbacks anymore, that allow a better error management (no more anonying debugger raise when discoInfo fails in debug mode)
Goffi <goffi@goffi.org>
parents: 963
diff changeset
303 for entity in [jid_] + [item.entity for item in items]:
2148
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parents: 2096
diff changeset
304 infos_d = self.getInfos(client, entity)
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parents: 963
diff changeset
305 infos_d.addCallbacks(infosCb, self._infosEb, [entity], None, [entity])
1484
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Goffi <goffi@goffi.org>
parents: 1460
diff changeset
306 defer_list.append(infos_d)
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parents: 963
diff changeset
307 return defer.DeferredList(defer_list)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
308
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parents: 2096
diff changeset
309 d = self.getItems(client, jid_)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
310 d.addCallback(gotItems)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
311 d.addCallback(lambda dummy: found_entities)
1189
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Goffi <goffi@goffi.org>
parents: 993
diff changeset
312 reactor.callLater(TIMEOUT, d.cancel) # FIXME: one bad service make a general timeout
973
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parents: 963
diff changeset
313 return d
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diff changeset
314
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
315 def generateHash(self, services):
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
316 """ Generate a unique hash for given service
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parents: 941
diff changeset
317
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
318 hash algorithm is the one described in XEP-0115
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
319 @param services: iterable of disco.DiscoIdentity/disco.DiscoFeature, as returned by discoHandler.info
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parents: 941
diff changeset
320
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
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parents:
diff changeset
321 """
944
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parents: 941
diff changeset
322 s = []
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
323 byte_identities = [ByteIdentity(service) for service in services if isinstance(service, disco.DiscoIdentity)] # FIXME: lang must be managed here
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
324 byte_identities.sort(key=lambda i: i.lang)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
325 byte_identities.sort(key=lambda i: i.idType)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
326 byte_identities.sort(key=lambda i: i.category)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
327 for identity in byte_identities:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
328 s.append(str(identity))
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
329 s.append('<')
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
330 byte_features = [service.encode('utf-8') for service in services if isinstance(service, disco.DiscoFeature)]
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
331 byte_features.sort() # XXX: the default sort has the same behaviour as the requested RFC 4790 i;octet sort
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
332 for feature in byte_features:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
333 s.append(feature)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
334 s.append('<')
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
335 #TODO: manage XEP-0128 data form here
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
336 cap_hash = b64encode(sha1(''.join(s)).digest())
1409
3265a2639182 massive (preventive) addition of 'u' (unicode) before the strings passed to logging functions
souliane <souliane@mailoo.org>
parents: 1396
diff changeset
337 log.debug(_(u'Capability hash generated: [%s]') % cap_hash)
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338 return cap_hash
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339
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340 @defer.inlineCallbacks
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341 def _discoInfos(self, entity_jid_s, node=u'', use_cache=True, profile_key=C.PROF_KEY_NONE):
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342 """ Discovery method for the bridge
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343 @param entity_jid_s: entity we want to discover
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344 @param use_cache(bool): if True, use cached data if available
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345 @param node(unicode): optional node to use
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346
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347 @return: list of tuples
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348 """
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349 client = self.host.getClient(profile_key)
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350 entity = jid.JID(entity_jid_s)
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351 disco_infos = yield self.getInfos(client, entity, node, use_cache)
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352 extensions = {}
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353 for form_type, form in disco_infos.extensions.items():
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354 fields = []
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355 for field in form.fieldList:
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356 data = {'type': field.fieldType}
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357 for attr in ('var', 'label', 'desc'):
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358 value = getattr(field, attr)
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359 if value is not None:
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360 data[attr] = value
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361
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362 values = [field.value] if field.value is not None else field.values
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363 fields.append((data, values))
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364
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365 extensions[form_type or ""] = fields
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366
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367 defer.returnValue((disco_infos.features,
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368 [(cat, type_, name or '') for (cat, type_), name in disco_infos.identities.items()],
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369 extensions))
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370
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371 def items2tuples(self, disco_items):
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372 """convert disco items to tuple of strings
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373
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374 @param disco_items(iterable[disco.DiscoItem]): items
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375 @return G(tuple[unicode,unicode,unicode]): serialised items
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376 """
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377 for item in disco_items:
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378 if not item.entity:
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379 log.warning(_(u"invalid item (no jid)"))
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380 continue
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381 yield (item.entity.full(), item.nodeIdentifier or '', item.name or '')
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382
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383 @defer.inlineCallbacks
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384 def _discoItems(self, entity_jid_s, node=u'', use_cache=True, profile_key=C.PROF_KEY_NONE):
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385 """ Discovery method for the bridge
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386
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387 @param entity_jid_s: entity we want to discover
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388 @param node(unicode): optional node to use
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389 @param use_cache(bool): if True, use cached data if available
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390 @return: list of tuples"""
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391 client = self.host.getClient(profile_key)
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392 entity = jid.JID(entity_jid_s)
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393 disco_items = yield self.getItems(client, entity, node, use_cache)
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394 ret = list(self.items2tuples(disco_items))
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diff changeset
395 defer.returnValue(ret)