Mercurial > libervia-backend
annotate sat/bridge/bridge_constructor/constructors/pb/pb_core_template.py @ 3028:ab2696e34d29
Python 3 port:
/!\ this is a huge commit
/!\ starting from this commit, SàT is needs Python 3.6+
/!\ SàT maybe be instable or some feature may not work anymore, this will improve with time
This patch port backend, bridge and frontends to Python 3.
Roughly this has been done this way:
- 2to3 tools has been applied (with python 3.7)
- all references to python2 have been replaced with python3 (notably shebangs)
- fixed files not handled by 2to3 (notably the shell script)
- several manual fixes
- fixed issues reported by Python 3 that where not handled in Python 2
- replaced "async" with "async_" when needed (it's a reserved word from Python 3.7)
- replaced zope's "implements" with @implementer decorator
- temporary hack to handle data pickled in database, as str or bytes may be returned,
to be checked later
- fixed hash comparison for password
- removed some code which is not needed anymore with Python 3
- deactivated some code which needs to be checked (notably certificate validation)
- tested with jp, fixed reported issues until some basic commands worked
- ported Primitivus (after porting dependencies like urwid satext)
- more manual fixes
author | Goffi <goffi@goffi.org> |
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date | Tue, 13 Aug 2019 19:08:41 +0200 |
parents | 0f277708e2ae |
children | a1bc34f90fa5 |
rev | line source |
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3028 | 1 #!/usr/bin/env python3 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SAT: a jabber client |
2771 | 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 |
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21 from sat.core.log import getLogger |
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22 |
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23 from twisted.spread import jelly, pb |
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24 from twisted.internet import reactor |
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25 log = getLogger(__name__) |
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26 |
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27 |
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28 ## jelly hack |
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29 # we monkey patch jelly to handle namedtuple |
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30 ori_jelly = jelly._Jellier.jelly |
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31 |
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32 |
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33 def fixed_jelly(self, obj): |
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34 """this method fix handling of namedtuple""" |
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35 if isinstance(obj, tuple) and not obj is tuple: |
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36 obj = tuple(obj) |
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37 return ori_jelly(self, obj) |
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38 |
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39 |
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40 jelly._Jellier.jelly = fixed_jelly |
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41 |
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42 |
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43 class PBRoot(pb.Root): |
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44 def __init__(self): |
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45 self.signals_handlers = [] |
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46 |
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47 def remote_initBridge(self, signals_handler): |
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48 self.signals_handlers.append(signals_handler) |
3028 | 49 log.info("registered signal handler") |
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50 |
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51 def sendSignalEb(self, failure, signal_name): |
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52 log.error( |
3028 | 53 "Error while sending signal {name}: {msg}".format( |
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54 name=signal_name, msg=failure |
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55 ) |
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56 ) |
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57 |
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58 def sendSignal(self, name, args, kwargs): |
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59 to_remove = [] |
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60 for handler in self.signals_handlers: |
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61 try: |
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62 d = handler.callRemote(name, *args, **kwargs) |
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63 except pb.DeadReferenceError: |
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64 to_remove.append(handler) |
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65 else: |
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66 d.addErrback(self.sendSignalEb, name) |
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67 if to_remove: |
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68 for handler in to_remove: |
3028 | 69 log.debug("Removing signal handler for dead frontend") |
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70 self.signals_handlers.remove(handler) |
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71 |
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72 def _bridgeDeactivateSignals(self): |
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73 if hasattr(self, "signals_paused"): |
3028 | 74 log.warning("bridge signals already deactivated") |
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75 if self.signals_handler: |
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76 self.signals_paused.extend(self.signals_handler) |
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77 else: |
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78 self.signals_paused = self.signals_handlers |
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79 self.signals_handlers = [] |
3028 | 80 log.debug("bridge signals have been deactivated") |
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81 |
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82 def _bridgeReactivateSignals(self): |
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83 try: |
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84 self.signals_handlers = self.signals_paused |
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85 except AttributeError: |
3028 | 86 log.debug("signals were already activated") |
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87 else: |
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88 del self.signals_paused |
3028 | 89 log.debug("bridge signals have been reactivated") |
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90 |
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91 ##METHODS_PART## |
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92 |
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93 |
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94 class Bridge(object): |
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95 def __init__(self): |
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96 log.info("Init Perspective Broker...") |
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97 self.root = PBRoot() |
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98 reactor.listenTCP(8789, pb.PBServerFactory(self.root)) |
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99 |
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100 def sendSignal(self, name, *args, **kwargs): |
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101 self.root.sendSignal(name, args, kwargs) |
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102 |
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103 def remote_initBridge(self, signals_handler): |
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104 self.signals_handlers.append(signals_handler) |
3028 | 105 log.info("registered signal handler") |
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106 |
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107 def register_method(self, name, callback): |
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108 log.debug("registering PB bridge method [%s]" % name) |
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109 setattr(self.root, "remote_" + name, callback) |
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110 # self.root.register_method(name, callback) |
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111 |
3028 | 112 def addMethod(self, name, int_suffix, in_sign, out_sign, method, async_=False, doc={}): |
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113 """Dynamically add a method to PB Bridge""" |
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114 # FIXME: doc parameter is kept only temporary, the time to remove it from calls |
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115 log.debug("Adding method {name} to PB bridge".format(name=name)) |
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116 self.register_method(name, method) |
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117 |
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118 def addSignal(self, name, int_suffix, signature, doc={}): |
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119 log.debug("Adding signal {name} to PB bridge".format(name=name)) |
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120 setattr( |
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121 self, name, lambda *args, **kwargs: self.sendSignal(name, *args, **kwargs) |
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122 ) |
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123 |
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124 def bridgeDeactivateSignals(self): |
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125 """Stop sending signals to bridge |
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126 |
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127 Mainly used for mobile frontends, when the frontend is paused |
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128 """ |
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129 self.root._bridgeDeactivateSignals() |
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130 |
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131 def bridgeReactivateSignals(self): |
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132 """Send again signals to bridge |
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133 |
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134 Should only be used after bridgeDeactivateSignals has been called |
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135 """ |
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136 self.root._bridgeReactivateSignals() |
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137 |
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138 ##SIGNALS_PART## |