Mercurial > libervia-backend

annotate sat/memory/disco.py @ 2635:eecd84a2530a

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0.7.0a1 release
author Goffi <goffi@goffi.org>
date Wed, 04 Jul 2018 07:26:20 +0200
parents 56f94936df1e
children c3f59c1dcb0a
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1934
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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
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24 log = getLogger(__name__)
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25 from twisted.words.protocols.jabber import jid
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26 from twisted.words.protocols.jabber.error import StanzaError
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27 from twisted.internet import defer
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28 from twisted.internet import reactor
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29 from twisted.python import failure
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30 from sat.core.constants import Const as C
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31 from sat.tools import xml_tools
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32 from sat.memory import persistent
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33 from wokkel import disco
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34 from base64 import b64encode
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35 from hashlib import sha1
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37
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38 TIMEOUT = 15
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39 CAP_HASH_ERROR = "ERROR"
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41
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42 class HashGenerationError(Exception):
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43 pass
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45
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46 class ByteIdentity(object):
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47 """This class manage identity as bytes (needed for i;octet sort), it is used for the hash generation"""
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49 def __init__(self, identity, lang=None):
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50 assert isinstance(identity, disco.DiscoIdentity)
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51 self.category = identity.category.encode("utf-8")
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52 self.idType = identity.type.encode("utf-8")
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53 self.name = identity.name.encode("utf-8") if identity.name else ""
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54 self.lang = lang.encode("utf-8") if lang is not None else ""
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55
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56 def __str__(self):
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57 return "%s/%s/%s/%s" % (self.category, self.idType, self.lang, self.name)
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58
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60 class HashManager(object):
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61 """map object which manage hashes
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62
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63 persistent storage is update when a new hash is added
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64 """
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65
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66 def __init__(self, persistent):
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67 self.hashes = {
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68 CAP_HASH_ERROR: disco.DiscoInfo() # used when we can't get disco infos
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69 }
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70 self.persistent = persistent
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71
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72 def __getitem__(self, key):
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73 return self.hashes[key]
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74
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75 def __setitem__(self, hash_, disco_info):
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76 if hash_ in self.hashes:
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77 log.debug(u"ignoring hash set: it is already known")
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78 return
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79 self.hashes[hash_] = disco_info
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80 self.persistent[hash_] = disco_info.toElement().toXml()
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81
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82 def __contains__(self, hash_):
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83 return self.hashes.__contains__(hash_)
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84
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85 def load(self):
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86 def fillHashes(hashes):
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87 for hash_, xml in hashes.iteritems():
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88 element = xml_tools.ElementParser()(xml)
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89 disco_info = disco.DiscoInfo.fromElement(element)
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90 if not disco_info.features and not disco_info.identities:
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91 log.warning(
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92 _(
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93 u"no feature/identity found in disco element (hash: {cap_hash}), ignoring: {xml}"
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94 ).format(cap_hash=hash_, xml=xml)
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95 )
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96 else:
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97 self.hashes[hash_] = disco_info
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98
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99 log.info(u"Disco hashes loaded")
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100
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101 d = self.persistent.load()
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102 d.addCallback(fillHashes)
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103 return d
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104
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105
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106 class Discovery(object):
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107 """ Manage capabilities of entities """
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108
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109 def __init__(self, host):
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110 self.host = host
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111 # TODO: remove legacy hashes
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112
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113 def load(self):
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114 """Load persistent hashes"""
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115 self.hashes = HashManager(persistent.PersistentDict("disco"))
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116 return self.hashes.load()
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117
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118 @defer.inlineCallbacks
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119 def hasFeature(self, client, feature, jid_=None, node=u""):
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120 """Tell if an entity has the required feature
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121
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122 @param feature: feature namespace
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123 @param jid_: jid of the target, or None for profile's server
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124 @param node(unicode): optional node to use for disco request
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parents: 941
diff changeset
125 @return: a Deferred which fire a boolean (True if feature is available)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
126 """
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
127 disco_infos = yield self.getInfos(client, jid_, node)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
128 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
129
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
130 @defer.inlineCallbacks
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parents: 2587
diff changeset
131 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
132 """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
133
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
134 @param feature: feature namespace
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
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parents: 944
diff changeset
135 @param jid_: jid of the target, or None for profile's server
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
136 @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
137
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
138 @raise: exceptions.FeatureNotFound
027a054c6dda core (disco): added checkFeature method + fixed hasFeature test
Goffi <goffi@goffi.org>
parents: 944
diff changeset
139 """
2148
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parents: 2096
diff changeset
140 disco_infos = yield self.getInfos(client, jid_, node)
973
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
141 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
142 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
143
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
144 @defer.inlineCallbacks
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parents: 2587
diff changeset
145 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
146 """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
147
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 @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
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parents: 1484
diff changeset
149 @param jid_(jid.JID): jid of the target, or None for profile's server
2148
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parents: 2096
diff changeset
150 @param node(unicode): optional node to use for disco request
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Goffi <goffi@goffi.org>
parents: 1484
diff changeset
151 @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
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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 @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
154 """
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
155 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
156 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
157 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
158
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
159 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
160 raise failure.Failure(exceptions.FeatureNotFound())
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
Goffi <goffi@goffi.org>
parents:
diff changeset
161
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
162 def getInfos(self, client, jid_=None, node=u"", use_cache=True):
944
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Goffi <goffi@goffi.org>
parents: 941
diff changeset
163 """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
164
944
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diff changeset
165 @param jid_: jid of the target, or None for profile's server
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
166 @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
167 @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
168 @return: a Deferred which fire disco.DiscoInfo
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
169 """
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
170 if jid_ is None:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
171 jid_ = jid.JID(client.jid.host)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
172 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
173 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
174 # 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
175 raise KeyError
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
176 cap_hash = self.host.memory.getEntityData(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
177 jid_, [C.ENTITY_CAP_HASH], client.profile
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
178 )[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
179 except (KeyError, exceptions.UnknownEntityError):
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
180 # 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
181 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
182 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
183 self.hashes[cap_hash] = disco_infos
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
184 self.host.memory.updateEntityData(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
185 jid_, C.ENTITY_CAP_HASH, cap_hash, profile_key=client.profile
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
186 )
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
187 return disco_infos
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
188
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
189 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
190 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
191 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
192 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
193 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
194 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
195 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
196 reason = unicode(fail)
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
197 log.warning(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
198 u"Error while requesting disco infos from {jid}: {reason}".format(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
199 jid=jid_.full(), reason=reason
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
200 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
201 )
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
202 self.host.memory.updateEntityData(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
203 jid_, C.ENTITY_CAP_HASH, CAP_HASH_ERROR, profile_key=client.profile
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
204 )
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
205 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
206 return disco_infos
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
207
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
208 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
209 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
210 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
211 return d
1290
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
212 else:
faa1129559b8 core, frontends: refactoring to base Libervia on QuickFrontend (big mixed commit):
Goffi <goffi@goffi.org>
parents: 1216
diff changeset
213 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
214 return defer.succeed(disco_infos)
587
952322b1d490 Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
215
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
216 @defer.inlineCallbacks
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
217 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
218 """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
219
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
220 @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
221 @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
222 @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
223 @return: a Deferred which fire disco.DiscoItems
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
224 """
2407
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
225 server_jid = jid.JID(client.jid.host)
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
226 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
227 jid_ = server_jid
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
228
cf9b276f4a08 core (disco): do not cache disco items when node is set
Goffi <goffi@goffi.org>
parents: 2342
diff changeset
229 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
230 # 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
231 try:
2624
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
232 items = self.host.memory.getEntityData(
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
233 jid_, ["DISCO_ITEMS"], client.profile
56f94936df1e code style reformatting using black
Goffi <goffi@goffi.org>
parents: 2587
diff changeset
234 )["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
235 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
236 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
237 # 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
238 raise KeyError
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Goffi <goffi@goffi.org>
parents: 1216
diff changeset
239 except (KeyError, exceptions.UnknownEntityError):
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souliane <souliane@mailoo.org>
parents: 1396
diff changeset
240 log.debug(u"Caching [%s] disco items" % jid_.full())
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parents: 2096
diff changeset
241 items = yield client.disco.requestItems(jid_, nodeIdentifier=node)
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diff changeset
242 self.host.memory.updateEntityData(
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parents: 2587
diff changeset
243 jid_, "DISCO_ITEMS", items, profile_key=client.profile
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parents: 2587
diff changeset
244 )
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parents: 941
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245 else:
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parents: 1684
diff changeset
246 try:
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parents: 2096
diff changeset
247 items = yield client.disco.requestItems(jid_, nodeIdentifier=node)
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parents: 1684
diff changeset
248 except StanzaError as e:
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parents: 2587
diff changeset
249 log.warning(
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
250 u"Error while requesting items for {jid}: {reason}".format(
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
251 jid=jid_.full(), reason=e.condition
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parents: 2587
diff changeset
252 )
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parents: 2587
diff changeset
253 )
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Goffi <goffi@goffi.org>
parents: 1684
diff changeset
254 items = disco.DiscoItems()
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255
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parents: 941
diff changeset
256 defer.returnValue(items)
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
257
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Goffi <goffi@goffi.org>
parents: 1491
diff changeset
258 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
259 failure_.trap(StanzaError)
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parents: 2587
diff changeset
260 log.warning(
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parents: 2587
diff changeset
261 _(u"Error while requesting [%(jid)s]: %(error)s")
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parents: 2587
diff changeset
262 % {"jid": entity_jid.full(), "error": failure_.getErrorMessage()}
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parents: 2587
diff changeset
263 )
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parents: 963
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264
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parents: 2414
diff changeset
265 def findServiceEntity(self, client, category, type_, jid_=None):
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parents: 2414
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266 """Helper method to find first available entity from findServiceEntities
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parents: 2414
diff changeset
267
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parents: 2414
diff changeset
268 args are the same as for [findServiceEntities]
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parents: 2414
diff changeset
269 @return (jid.JID, None): found entity
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parents: 2414
diff changeset
270 """
a9fac72825a2 memory (disco): added findServiceEntity helper method to get first service of a kind
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parents: 2414
diff changeset
271 d = self.host.findServiceEntities(client, "pubsub", "service")
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parents: 2414
diff changeset
272 d.addCallback(lambda entities: entities.pop() if entities else None)
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parents: 2414
diff changeset
273 return d
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parents: 2414
diff changeset
274
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275 def findServiceEntities(self, client, category, type_, jid_=None):
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276 """Return all available items of an entity which correspond to (category, type_)
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parents: 572
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277
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278 @param category: identity's category
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diff changeset
279 @param type_: identitiy's type
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diff changeset
280 @param jid_: the jid of the target server (None for profile's server)
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Goffi <goffi@goffi.org>
parents: 1416
diff changeset
281 @return: a set of found entities
1675
fd143578fe89 plugin XEP-0065: fixed bad error handling
Goffi <goffi@goffi.org>
parents: 1552
diff changeset
282 @raise defer.CancelledError: the request timed out
944
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parents: 941
diff changeset
283 """
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
284 found_entities = set()
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
285
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
286 def infosCb(infos, entity_jid):
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parents: 941
diff changeset
287 if (category, type_) in infos.identities:
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parents: 963
diff changeset
288 found_entities.add(entity_jid)
282
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parents:
diff changeset
289
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parents: 963
diff changeset
290 def gotItems(items):
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
291 defers_list = []
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
292 for item in items:
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parents: 2096
diff changeset
293 info_d = self.getInfos(client, item.entity)
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diff changeset
294 info_d.addCallbacks(
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diff changeset
295 infosCb, self._infosEb, [item.entity], None, [item.entity]
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parents: 2587
diff changeset
296 )
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parents: 963
diff changeset
297 defers_list.append(info_d)
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)
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parents: 963
diff changeset
298 return defer.DeferredList(defers_list)
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parents: 941
diff changeset
299
2148
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parents: 2096
diff changeset
300 d = self.getItems(client, jid_)
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parents: 963
diff changeset
301 d.addCallback(gotItems)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
302 d.addCallback(lambda dummy: found_entities)
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parents: 2587
diff changeset
303 reactor.callLater(
56f94936df1e code style reformatting using black
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parents: 2587
diff changeset
304 TIMEOUT, d.cancel
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parents: 2587
diff changeset
305 ) # FIXME: one bad service make a general timeout
973
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parents: 963
diff changeset
306 return d
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
307
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parents: 2096
diff changeset
308 def findFeaturesSet(self, client, features, identity=None, jid_=None):
944
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
309 """Return entities (including jid_ and its items) offering features
587
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Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents: 572
diff changeset
310
944
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parents: 941
diff changeset
311 @param features: iterable of features which must be present
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Goffi <goffi@goffi.org>
parents: 1484
diff changeset
312 @param identity(None, tuple(unicode, unicode)): if not None, accept only this (category/type) identity
944
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parents: 941
diff changeset
313 @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
314 @param profile: %(doc_profile)s
944
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parents: 941
diff changeset
315 @return: a set of found entities
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
316 """
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
317 if jid_ is None:
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
318 jid_ = jid.JID(client.jid.host)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
319 features = set(features)
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
320 found_entities = set()
282
6a0c6d8e119d added plugin xep-0115: entity capabilities
Goffi <goffi@goffi.org>
parents:
diff changeset
321
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
322 def infosCb(infos, entity):
2533
8d82a62fa098 core (disco), plugin XEP-0115: client use + capabilities hash improvment:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
323 if entity is None:
2624
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
324 log.warning(_(u"received an item without jid"))
2533
8d82a62fa098 core (disco), plugin XEP-0115: client use + capabilities hash improvment:
Goffi <goffi@goffi.org>
parents: 2483
diff changeset
325 return
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
326 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
327 return
944
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Goffi <goffi@goffi.org>
parents: 941
diff changeset
328 if features.issubset(infos.features):
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
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parents: 941
diff changeset
329 found_entities.add(entity)
282
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Goffi <goffi@goffi.org>
parents:
diff changeset
330
973
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
331 def gotItems(items):
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
332 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
333 for entity in [jid_] + [item.entity for item in items]:
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
334 infos_d = self.getInfos(client, entity)
973
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
335 infos_d.addCallbacks(infosCb, self._infosEb, [entity], None, [entity])
1484
05b821a0ff5a core (disco): fixed bad indentation resulting in bad result in findFeaturesSet
Goffi <goffi@goffi.org>
parents: 1460
diff changeset
336 defer_list.append(infos_d)
973
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
337 return defer.DeferredList(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
338
2148
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diff changeset
339 d = self.getItems(client, jid_)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
340 d.addCallback(gotItems)
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
341 d.addCallback(lambda dummy: found_entities)
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diff changeset
342 reactor.callLater(
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Goffi <goffi@goffi.org>
parents: 2587
diff changeset
343 TIMEOUT, d.cancel
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diff changeset
344 ) # FIXME: one bad service make a general timeout
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Goffi <goffi@goffi.org>
parents: 963
diff changeset
345 return d
944
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diff changeset
346
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
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diff changeset
347 def generateHash(self, services):
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
348 """ Generate a unique hash for given service
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
349
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
350 hash algorithm is the one described in XEP-0115
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
diff changeset
351 @param services: iterable of disco.DiscoIdentity/disco.DiscoFeature, as returned by discoHandler.info
e1842ebcb2f3 core, plugin XEP-0115: discovery refactoring:
Goffi <goffi@goffi.org>
parents: 941
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352
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353 """
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354 s = []
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355 byte_identities = [
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356 ByteIdentity(service)
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357 for service in services
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358 if isinstance(service, disco.DiscoIdentity)
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359 ] # FIXME: lang must be managed here
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360 byte_identities.sort(key=lambda i: i.lang)
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361 byte_identities.sort(key=lambda i: i.idType)
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362 byte_identities.sort(key=lambda i: i.category)
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363 for identity in byte_identities:
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364 s.append(str(identity))
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365 s.append("<")
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366 byte_features = [
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367 service.encode("utf-8")
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368 for service in services
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369 if isinstance(service, disco.DiscoFeature)
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370 ]
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371 byte_features.sort() # XXX: the default sort has the same behaviour as the requested RFC 4790 i;octet sort
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parents: 941
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372 for feature in byte_features:
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373 s.append(feature)
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374 s.append("<")
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375 # TODO: manage XEP-0128 data form here
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376 cap_hash = b64encode(sha1("".join(s)).digest())
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377 log.debug(_(u"Capability hash generated: [%s]") % cap_hash)
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378 return cap_hash
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379
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380 @defer.inlineCallbacks
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381 def _discoInfos(
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382 self, entity_jid_s, node=u"", use_cache=True, profile_key=C.PROF_KEY_NONE
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383 ):
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384 """ Discovery method for the bridge
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parents: 961
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385 @param entity_jid_s: entity we want to discover
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386 @param use_cache(bool): if True, use cached data if available
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parents: 2148
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387 @param node(unicode): optional node to use
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388
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389 @return: list of tuples
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390 """
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parents: 2096
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391 client = self.host.getClient(profile_key)
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parents: 961
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392 entity = jid.JID(entity_jid_s)
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393 disco_infos = yield self.getInfos(client, entity, node, use_cache)
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394 extensions = {}
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395 for form_type, form in disco_infos.extensions.items():
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396 fields = []
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397 for field in form.fieldList:
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398 data = {"type": field.fieldType}
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399 for attr in ("var", "label", "desc"):
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400 value = getattr(field, attr)
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401 if value is not None:
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402 data[attr] = value
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403
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parents: 1414
diff changeset
404 values = [field.value] if field.value is not None else field.values
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405 fields.append((data, values))
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406
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407 extensions[form_type or ""] = fields
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408
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409 defer.returnValue(
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410 (
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411 disco_infos.features,
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412 [
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413 (cat, type_, name or "")
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414 for (cat, type_), name in disco_infos.identities.items()
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415 ],
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416 extensions,
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417 )
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parents: 2587
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418 )
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419
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420 def items2tuples(self, disco_items):
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421 """convert disco items to tuple of strings
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parents: 2096
diff changeset
422
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423 @param disco_items(iterable[disco.DiscoItem]): items
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424 @return G(tuple[unicode,unicode,unicode]): serialised items
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425 """
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
426 for item in disco_items:
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
427 if not item.entity:
a543eda2c923 core (memory/disco): getInfos now handle node + use client instead of profile in many methods
Goffi <goffi@goffi.org>
parents: 2096
diff changeset
428 log.warning(_(u"invalid item (no jid)"))
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429 continue
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430 yield (item.entity.full(), item.nodeIdentifier or "", item.name or "")
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431
963
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432 @defer.inlineCallbacks
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433 def _discoItems(
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parents: 2587
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434 self, entity_jid_s, node=u"", use_cache=True, profile_key=C.PROF_KEY_NONE
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parents: 2587
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435 ):
963
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parents: 961
diff changeset
436 """ Discovery method for the bridge
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
437
963
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Goffi <goffi@goffi.org>
parents: 961
diff changeset
438 @param entity_jid_s: entity we want to discover
2150
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parents: 2148
diff changeset
439 @param node(unicode): optional node to use
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f047d5410040 core (memory/disco): added use_cache parameter to discoInfos/discoItems (set to False to ignore cache)
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parents: 2150
diff changeset
440 @param use_cache(bool): if True, use cached data if available
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parents: 1493
diff changeset
441 @return: list of tuples"""
2148
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Goffi <goffi@goffi.org>
parents: 2096
diff changeset
442 client = self.host.getClient(profile_key)
963
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parents: 961
diff changeset
443 entity = jid.JID(entity_jid_s)
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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
444 disco_items = yield self.getItems(client, entity, node, use_cache)
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
445 ret = list(self.items2tuples(disco_items))
2096
efe31f0881fb core (memory/disco): recover getItems on bridge's discoItems method if an item is empty
Goffi <goffi@goffi.org>
parents: 1934
diff changeset
446 defer.returnValue(ret)