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annotate src/bridge/bridge_constructor/constructors/embedded/embedded_template.py @ 2520:25e16729413b

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plugin XEP-0329: fixed extra key serialisation before sending to bridge
author Goffi <goffi@goffi.org>
date Wed, 14 Mar 2018 08:10:31 +0100
parents 0046283a285d
children
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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: a XMPP 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.log import getLogger
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21 log = getLogger(__name__)
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22 from sat.core import exceptions
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23
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24
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25 class _Bridge(object):
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26 def __init__(self):
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27 log.debug(u"Init embedded bridge...")
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28 self._methods_cbs = {}
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29 self._signals_cbs = {
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30 "core": {},
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31 "plugin": {}
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32 }
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33
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34 def bridgeConnect(self, callback, errback):
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35 callback()
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36
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37 def register_method(self, name, callback):
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38 log.debug(u"registering embedded bridge method [{}]".format(name))
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39 if name in self._methods_cbs:
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40 raise exceptions.ConflictError(u"method {} is already regitered".format(name))
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41 self._methods_cbs[name] = callback
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42
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43 def register_signal(self, functionName, handler, iface="core"):
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44 iface_dict = self._signals_cbs[iface]
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45 if functionName in iface_dict:
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46 raise exceptions.ConflictError(u"signal {name} is already regitered for interface {iface}".format(name=functionName, iface=iface))
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47 iface_dict[functionName] = handler
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48
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49 def call_method(self, name, out_sign, async_, args, kwargs):
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50 callback = kwargs.pop("callback", None)
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51 errback = kwargs.pop("errback", None)
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52 if async_:
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53 d = self._methods_cbs[name](*args, **kwargs)
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54 if callback is not None:
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55 d.addCallback(callback if out_sign else lambda dummy: callback())
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56 if errback is None:
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57 d.addErrback(lambda failure_: log.error(failure_))
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58 else:
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59 d.addErrback(errback)
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60 return d
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61 else:
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62 try:
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63 ret = self._methods_cbs[name](*args, **kwargs)
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64 except Exception as e:
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65 if errback is not None:
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66 errback(e)
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67 else:
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68 raise e
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69 else:
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70 if callback is None:
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71 return ret
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72 else:
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73 if out_sign:
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74 callback(ret)
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75 else:
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76 callback()
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77
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78 def send_signal(self, name, args, kwargs):
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79 try:
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80 cb = self._signals_cbs["plugin"][name]
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81 except KeyError:
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82 log.debug(u"ignoring signal {}: no callback registered".format(name))
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83 else:
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84 cb(*args, **kwargs)
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85
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86 def addMethod(self, name, int_suffix, in_sign, out_sign, method, async=False, doc={}):
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87 #FIXME: doc parameter is kept only temporary, the time to remove it from calls
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88 log.debug("Adding method [{}] to embedded bridge".format(name))
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89 self.register_method(name, method)
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90 setattr(self.__class__, name, lambda self_, *args, **kwargs: self.call_method(name, out_sign, async, args, kwargs))
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91
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92 def addSignal(self, name, int_suffix, signature, doc={}):
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93 setattr(self.__class__, name, lambda self_, *args, **kwargs: self.send_signal(name, args, kwargs))
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94
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95 ## signals ##
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96
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97 ##SIGNALS_PART##
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98 ## methods ##
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99
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100 ##METHODS_PART##
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101
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102 # we want the same instance for both core and frontend
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103 bridge = None
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104 def Bridge():
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105 global bridge
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106 if bridge is None:
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107 bridge = _Bridge()
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108 return bridge