Mercurial > libervia-backend

annotate libervia/backend/bridge/bridge_constructor/constructors/embedded/embedded_template.py @ 4118:07370d2a9bde

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plugin XEP-0167: keep media order when starting a call: media content order is relevant when building Jingle contents/SDP notably for bundling. This patch fixes the previous behaviour of always using the same order by keeping the order of the data (i.e. order of original SDP offer). Previous behaviour could lead to call failure. rel 424
author Goffi <goffi@goffi.org>
date Tue, 03 Oct 2023 15:15:24 +0200
parents 4b842c1fb686
children 0d7bb4df2343
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1 #!/usr/bin/env python3
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2
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3
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4 # Libervia: an XMPP client
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5 # Copyright (C) 2009-2021 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 libervia.backend.core.log import getLogger
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21
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22 log = getLogger(__name__)
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23 from libervia.backend.core import exceptions
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25
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26 class _Bridge(object):
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27 def __init__(self):
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28 log.debug("Init embedded bridge...")
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29 self._methods_cbs = {}
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30 self._signals_cbs = {"core": {}, "plugin": {}}
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31
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32 def bridge_connect(self, callback, errback):
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33 callback()
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34
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35 def register_method(self, name, callback):
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36 log.debug("registering embedded bridge method [{}]".format(name))
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37 if name in self._methods_cbs:
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38 raise exceptions.ConflictError("method {} is already regitered".format(name))
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39 self._methods_cbs[name] = callback
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40
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41 def register_signal(self, functionName, handler, iface="core"):
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42 iface_dict = self._signals_cbs[iface]
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43 if functionName in iface_dict:
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44 raise exceptions.ConflictError(
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45 "signal {name} is already regitered for interface {iface}".format(
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46 name=functionName, iface=iface
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47 )
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48 )
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49 iface_dict[functionName] = handler
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50
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51 def call_method(self, name, out_sign, async_, args, kwargs):
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52 callback = kwargs.pop("callback", None)
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53 errback = kwargs.pop("errback", None)
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54 if async_:
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55 d = self._methods_cbs[name](*args, **kwargs)
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56 if callback is not None:
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57 d.addCallback(callback if out_sign else lambda __: callback())
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58 if errback is None:
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59 d.addErrback(lambda failure_: log.error(failure_))
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60 else:
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61 d.addErrback(errback)
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62 return d
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63 else:
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64 try:
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65 ret = self._methods_cbs[name](*args, **kwargs)
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66 except Exception as e:
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67 if errback is not None:
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68 errback(e)
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69 else:
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70 raise e
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71 else:
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72 if callback is None:
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73 return ret
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74 else:
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75 if out_sign:
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76 callback(ret)
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77 else:
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78 callback()
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79
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80 def send_signal(self, name, args, kwargs):
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81 try:
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82 cb = self._signals_cbs["plugin"][name]
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83 except KeyError:
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84 log.debug("ignoring signal {}: no callback registered".format(name))
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85 else:
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86 cb(*args, **kwargs)
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88 def add_method(self, name, int_suffix, in_sign, out_sign, method, async_=False, doc={}):
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89 # FIXME: doc parameter is kept only temporary, the time to remove it from calls
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90 log.debug("Adding method [{}] to embedded bridge".format(name))
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91 self.register_method(name, method)
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92 setattr(
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93 self.__class__,
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94 name,
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95 lambda self_, *args, **kwargs: self.call_method(
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96 name, out_sign, async_, args, kwargs
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97 ),
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98 )
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99
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100 def add_signal(self, name, int_suffix, signature, doc={}):
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101 setattr(
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102 self.__class__,
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103 name,
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104 lambda self_, *args, **kwargs: self.send_signal(name, args, kwargs),
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105 )
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106
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107 ## signals ##
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108
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109
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110 ##SIGNALS_PART##
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111 ## methods ##
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112
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113 ##METHODS_PART##
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114
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115 # we want the same instance for both core and frontend
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116 bridge = None
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117
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118
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119 def bridge():
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120 global bridge
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121 if bridge is None:
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122 bridge = _Bridge()
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123 return bridge