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annotate sat/plugins/plugin_xep_0092.py @ 2886:b06cb71079fa

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core (xmpp): new networkEnabled() and networkDisabled() methods: those methods can be called by platform specific plugins when network is known to be (un)available. This way, connection attempts can be cancelled when no network is available, saving resources (notably battery on mobile devices), or attempts can be restarted immediately when network is known to be available again.
author Goffi <goffi@goffi.org>
date Sat, 06 Apr 2019 19:05:57 +0200
parents 003b8b4b56a7
children ab2696e34d29
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 # SàT plugin for Software Version (XEP-0092)
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5 # Copyright (C) 2009-2019 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.constants import Const as C
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22 from twisted.internet import reactor, defer
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23 from twisted.words.protocols.jabber import jid
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24 from wokkel import compat
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25 from sat.core import exceptions
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26 from sat.core.log import getLogger
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27
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28 log = getLogger(__name__)
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29
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30 NS_VERSION = "jabber:iq:version"
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31 TIMEOUT = 10
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32
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33 PLUGIN_INFO = {
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34 C.PI_NAME: "Software Version Plugin",
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35 C.PI_IMPORT_NAME: "XEP-0092",
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36 C.PI_TYPE: "XEP",
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37 C.PI_PROTOCOLS: ["XEP-0092"],
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38 C.PI_DEPENDENCIES: [],
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39 C.PI_RECOMMENDATIONS: [C.TEXT_CMDS],
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40 C.PI_MAIN: "XEP_0092",
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41 C.PI_HANDLER: "no", # version is already handler in core.xmpp module
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42 C.PI_DESCRIPTION: _("""Implementation of Software Version"""),
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43 }
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44
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45
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46 class XEP_0092(object):
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47 def __init__(self, host):
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48 log.info(_("Plugin XEP_0092 initialization"))
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49 self.host = host
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50 host.bridge.addMethod(
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51 "getSoftwareVersion",
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52 ".plugin",
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53 in_sign="ss",
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54 out_sign="(sss)",
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55 method=self._getVersion,
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56 async=True,
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57 )
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58 try:
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59 self.host.plugins[C.TEXT_CMDS].addWhoIsCb(self._whois, 50)
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60 except KeyError:
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61 log.info(_("Text commands not available"))
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62
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63 def _getVersion(self, entity_jid_s, profile_key):
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64 def prepareForBridge(data):
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65 name, version, os = data
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66 return (name or "", version or "", os or "")
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67
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68 d = self.getVersion(jid.JID(entity_jid_s), profile_key)
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69 d.addCallback(prepareForBridge)
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70 return d
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71
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72 def getVersion(self, jid_, profile_key=C.PROF_KEY_NONE):
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73 """ Ask version of the client that jid_ is running
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74 @param jid_: jid from who we want to know client's version
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75 @param profile_key: %(doc_profile_key)s
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76 @return (tuple): a defered which fire a tuple with the following data (None if not available):
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77 - name: Natural language name of the software
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78 - version: specific version of the software
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79 - os: operating system of the queried entity
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80 """
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81 client = self.host.getClient(profile_key)
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82
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83 def getVersion(__):
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84 iq_elt = compat.IQ(client.xmlstream, "get")
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85 iq_elt["to"] = jid_.full()
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86 iq_elt.addElement("query", NS_VERSION)
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87 d = iq_elt.send()
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88 d.addCallback(self._gotVersion)
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89 return d
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90
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91 d = self.host.checkFeature(client, NS_VERSION, jid_)
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92 d.addCallback(getVersion)
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93 reactor.callLater(
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94 TIMEOUT, d.cancel
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95 ) # XXX: timeout needed because some clients don't answer the IQ
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96 return d
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97
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98 def _gotVersion(self, iq_elt):
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99 try:
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100 query_elt = iq_elt.elements(NS_VERSION, "query").next()
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101 except StopIteration:
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102 raise exceptions.DataError
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103 ret = []
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104 for name in ("name", "version", "os"):
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105 try:
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106 data_elt = query_elt.elements(NS_VERSION, name).next()
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107 ret.append(unicode(data_elt))
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108 except StopIteration:
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109 ret.append(None)
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110
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111 return tuple(ret)
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112
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113 def _whois(self, client, whois_msg, mess_data, target_jid):
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114 """ Add software/OS information to whois """
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115
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116 def versionCb(version_data):
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117 name, version, os = version_data
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118 if name:
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119 whois_msg.append(_("Client name: %s") % name)
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120 if version:
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121 whois_msg.append(_("Client version: %s") % version)
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122 if os:
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123 whois_msg.append(_("Operating system: %s") % os)
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124
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125 def versionEb(failure):
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91836a647515 plugin XEP-0092: use of checkFeature instead of hasFeature + timeout + message adapted to failure if software version is not available
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parents: 945
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126 failure.trap(exceptions.FeatureNotFound, defer.CancelledError)
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Goffi <goffi@goffi.org>
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127 if failure.check(failure, exceptions.FeatureNotFound):
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parents: 945
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128 whois_msg.append(_("Software version not available"))
91836a647515 plugin XEP-0092: use of checkFeature instead of hasFeature + timeout + message adapted to failure if software version is not available
Goffi <goffi@goffi.org>
parents: 945
diff changeset
129 else:
91836a647515 plugin XEP-0092: use of checkFeature instead of hasFeature + timeout + message adapted to failure if software version is not available
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parents: 945
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130 whois_msg.append(_("Client software version request timeout"))
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d609581bf74a plugin text commands: refactoring, text now only contain main commands, and other plugin can add commands themselve:
Goffi <goffi@goffi.org>
parents: 920
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131
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a2bc5089c2eb backend, frontends: message refactoring (huge commit):
Goffi <goffi@goffi.org>
parents: 1934
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132 d = self.getVersion(target_jid, client.profile)
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Goffi <goffi@goffi.org>
parents: 920
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133 d.addCallbacks(versionCb, versionEb)
d609581bf74a plugin text commands: refactoring, text now only contain main commands, and other plugin can add commands themselve:
Goffi <goffi@goffi.org>
parents: 920
diff changeset
134 return d