annotate bridge.py @ 216:d527d7b75f56

merged Bot.find_bridges and Bot.get_bridges into Bot.iter_bridges, btw we don't need to lock Bot.bridges because lists don't raise RuntimeError Signed-off-by: Charly COSTE <changaco@changaco.net>
author Charly COSTE <changaco@changaco.net>
date Sat, 06 Mar 2010 22:55:47 +0100
parents b900585bdbbb
children 63289aa1dea7
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1 #!/usr/bin/env python
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2 # -*- coding: utf-8 -*-
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3
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4 # This program is free software: you can redistribute it and/or modify
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5 # it under the terms of the GNU General Public License as published by
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6 # the Free Software Foundation, either version 3 of the License, or
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7 # (at your option) any later version.
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8 #
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9 # This program is distributed in the hope that it will be useful,
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10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 # GNU General Public License for more details.
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13 #
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14 # You should have received a copy of the GNU General Public License
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15 # along with this program. If not, see <http://www.gnu.org/licenses/>.
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17
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18 import re
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19 import threading
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20 import traceback
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21
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22 from irclib import ServerConnection
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23 import muc
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24 xmpp = muc.xmpp
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25 del muc
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26
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27 from participant import Participant
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28 import say_levels
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31 class Bridge:
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32
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33 modes = ['bypass', 'normal', 'limited', 'minimal']
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34
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35 class NoSuchParticipantException(Exception): pass
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36
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37
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38 def __init__(self, owner_bot, xmpp_room_jid, irc_room, irc_server, mode, say_level, irc_port=6667, irc_connection_interval=None, irc_charsets=None):
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39 """Create a new bridge."""
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40 self.bot = owner_bot
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41 self.irc_server = irc_server
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42 self.irc_port = irc_port
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43 self.irc_room = irc_room.lower()
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44 self.irc_connection_interval = irc_connection_interval
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45 self.irc_charsets = irc_charsets
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46 self.irc_op = False
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47 self.xmpp_room_jid = xmpp_room_jid
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48 self.say_level = say_level
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49 self.participants = []
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50 if mode not in self.__class__.modes:
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51 raise Exception('[Error] "'+mode+'" is not a correct value for a bridge\'s "mode" attribute')
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52 self.mode = mode
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53
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54 self.lock = threading.RLock()
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55
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56 self.init2()
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57
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58
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59 def init2(self):
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60 self.reconnecting = False
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61
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62 # Join XMPP room
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63 self.xmpp_room = xmpp.muc(self.xmpp_room_jid)
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64 self.xmpp_room.join(self.bot.xmpp_c, self.bot.nickname, callback=self._xmpp_join_callback)
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66 # Join IRC room
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67 self.irc_connection = self.bot.irc.open_connection(self.irc_server, self.irc_port, self.bot.nickname, delay=self.irc_connection_interval)
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68 self.irc_connection.connect(nick_callback=self._irc_nick_callback, charsets=self.irc_charsets)
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69
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70 self.bot.error(say_levels.notice, 'bridge "'+str(self)+'" is running in '+self.mode+' mode and a say_level of "'+str(self.say_level)+'"')
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72
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73 def _join_irc_failed(self, reason):
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74 self.bot.error(say_levels.error, 'failed to connect to the IRC chan of bridge '+str(self)+'\nreason: '+reason, send_to_admins=True)
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75 self.stop(message='Failed to connect to the IRC chan, stopping bridge', log=False)
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78 def _irc_nick_callback(self, error, arguments=[]):
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79 if error == None:
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80 if self.mode == None:
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81 return
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82 self.irc_connection.join(self.irc_room)
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83 self.bot.error(3, 'successfully connected on IRC side of bridge "'+str(self)+'"', debug=True)
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84 self.say(say_levels.notice, 'bridge "'+str(self)+'" is running in '+self.mode+' mode', on_xmpp=False)
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85 if self.mode not in ['normal', 'bypass']:
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86 self.show_participants_list_on(protocols=['irc'])
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87 else:
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88 self.mode = None
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89 self.say(say_levels.error, 'failed to connect to the IRC chan, leaving ...', on_irc=False)
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90 if error in ['nicknameinuse', 'nickcollision']:
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91 reason = '"'+self.bot.nickname+'" is already used or reserved on the IRC server'
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92 elif error == 'erroneusnickname':
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93 reason = '"'+self.bot.nickname+'" got "erroneusnickname"'
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94 elif error == 'nicknametoolong':
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95 reason = '"'+self.bot.nickname+'" got "nicknametoolong", limit seems to be '+str(arguments[0])
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96 else:
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97 reason = error
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98 self._join_irc_failed(reason)
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100
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101 def _RemoteServerNotFound_handler(self):
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102 server = xmpp.protocol.JID(self.xmpp_room_jid).getDomain()
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103 bridges = self.bot.iter_bridges(patterns=[server])
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104 error = [say_levels.warning, 'The MUC server '+server+' seems to be down, the bot will try to recreate all bridges related to this server in 5 minutes']
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105 self.bot.restart_bridges_delayed(bridges, 300, error)
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106
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107
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108 def _xmpp_join_callback(self, errors):
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109 """Called by muc._xmpp_presence_handler"""
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110 if len(errors) == 0:
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111 self.reconnecting = False
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112 if self.mode == None:
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113 return
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114 self.bot.error(3, 'succesfully connected on XMPP side of bridge "'+str(self)+'"', debug=True)
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115 self.say(say_levels.notice, 'bridge "'+str(self)+'" is running in '+self.mode+' mode', on_irc=False)
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116 else:
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117 self.mode = None
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118 self.say(say_levels.error, 'failed to connect to the XMPP room, leaving ...', on_xmpp=False)
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119 for error in errors:
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120 try:
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121 raise error
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122 except xmpp.muc.RemoteServerNotFound:
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123 self._RemoteServerNotFound_handler()
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124 except:
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125 trace = traceback.format_exc()
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126 self.bot.error(say_levels.error, 'failed to connect to the XMPP room of bridge "'+str(self)+'", stopping bridge\n'+trace, send_to_admins=True)
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127 self.stop(message='Failed to connect to the XMPP room, stopping bridge')
0
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128
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129
203
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130 def add_participant(self, from_protocol, nickname, real_jid=None, irc_id=None):
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131 """Add a participant to the bridge."""
175
8378da7844f2 minor fix in Bridge.addParticipant(), don't rely on Bridge.irc_connection or Bridge.xmpp_room when not necessary
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132 if (from_protocol == 'irc' and nickname == self.bot.nickname) or (from_protocol == 'xmpp' and nickname == self.bot.nickname):
180
102f895347ff added a required "importance" argument to Bot.error()
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133 self.bot.error(3, 'not adding self ('+self.bot.nickname+') to bridge "'+str(self)+'"', debug=True)
17
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diff changeset
134 return
0
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135 try:
203
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136 p = self.get_participant(nickname)
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6c4b841144f6 Better handling of participants
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diff changeset
137 if p.protocol != from_protocol:
120
de00bbe026a7 bugfix related to the bypass mode
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diff changeset
138 if from_protocol == 'irc' and isinstance(p.irc_connection, ServerConnection) and p.irc_connection.really_connected == True and p.irc_connection.real_nickname == nickname or from_protocol == 'xmpp' and isinstance(p.xmpp_c, xmpp.client.Client) and isinstance(p.muc, xmpp.muc) and p.xmpp_c.nickname == nickname:
115
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diff changeset
139 if irc_id:
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140 p.irc_connection.irc_id = irc_id
118
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diff changeset
141 return p
123
75a03f10a863 Code refactoring (new method participant.set_both_sides())
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diff changeset
142 p.set_both_sides()
109
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diff changeset
143 return p
124
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diff changeset
144 except self.NoSuchParticipantException:
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145 pass
118
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diff changeset
146
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147 if nickname == 'ChanServ' and from_protocol == 'irc':
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148 return
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149
180
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150 self.bot.error(3, 'adding participant "'+nickname+'" from "'+from_protocol+'" to bridge "'+str(self)+'"', debug=True)
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diff changeset
151 try:
124
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152 p = Participant(self, from_protocol, nickname, real_jid=real_jid)
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153 except:
201
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154 self.bot.error(say_levels.debug, 'unknown error while adding participant "'+nickname+'" from "'+from_protocol+'" to bridge "'+str(self)+'"\n'+traceback.format_exc())
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diff changeset
155 return
191
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156 self.lock.acquire()
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157 self.participants.append(p)
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158 self.lock.release()
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159 if self.mode not in ['normal', 'bypass']:
102
b3eba9489329 In minimal mode, display the participants' list on XMPP when someone joins on IRC
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160 if from_protocol == 'xmpp':
152
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161 self.show_participants_list_on(protocols=['irc'])
102
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diff changeset
162 elif self.mode == 'minimal' and from_protocol == 'irc':
152
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163 self.show_participants_list_on(protocols=['xmpp'])
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164 return p
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165
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166
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167 def create_duplicates_on(self, protocols):
132
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168 for p in self.participants:
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169 if p.protocol == 'xmpp' and 'irc' in protocols:
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170 p.create_duplicate_on_irc()
132
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171 elif p.protocol == 'irc' and 'xmpp' in protocols:
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172 p.create_duplicate_on_xmpp()
132
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173
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174
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175 def change_mode(self, new_mode):
118
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176 if new_mode == self.mode:
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177 return 'Mode is already equal to '+self.mode
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178
132
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179 old_mode = self.mode
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180 self.mode = new_mode
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181
6a6885dbed25 handle more mode changing cases (added bridge.createDuplicatesOn())
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182 unhandled = False
118
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183
b29fd5696a78 new mode bypass and new method bridge.changeMode
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184 if new_mode in ['normal', 'bypass']:
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185
152
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186 if old_mode == 'limited':
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187 # From limited to {normal,bypass}
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188 self.create_duplicates_on(['irc'])
118
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189
132
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diff changeset
190 elif old_mode in ['minimal', 'normal']:
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diff changeset
191 # From {minimal,normal} to {normal,bypass}
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192 self.create_duplicates_on(['irc', 'xmpp'])
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diff changeset
193
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194 elif old_mode == 'bypass':
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195 # From bypass to normal
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196 pass # Handled below
118
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197
b29fd5696a78 new mode bypass and new method bridge.changeMode
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198 else:
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199 # Unhandled mode changing
132
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diff changeset
200 unhandled = True
118
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diff changeset
201
152
17305e57f71d removed automatic switching to limited mode (created Bridge.show_participants_list_on())
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diff changeset
202 elif new_mode == 'limited':
118
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diff changeset
203
139
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parents: 137
diff changeset
204 if old_mode == 'minimal':
203
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diff changeset
205 self.create_duplicates_on(['xmpp'])
139
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diff changeset
206
118
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diff changeset
207 i = 0
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diff changeset
208 for p in self.participants:
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diff changeset
209 if p.protocol == 'xmpp':
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diff changeset
210 i += 1
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diff changeset
211 p._close_irc_connection('Bridge is switching to limited mode')
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diff changeset
212
152
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diff changeset
213 self.show_participants_list_on(protocols=['irc'])
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diff changeset
214
b29fd5696a78 new mode bypass and new method bridge.changeMode
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diff changeset
215 elif new_mode == 'minimal':
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diff changeset
216 for p in self.participants:
132
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diff changeset
217 p.leave('Bridge is switching to minimal mode')
118
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diff changeset
218
b29fd5696a78 new mode bypass and new method bridge.changeMode
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diff changeset
219 else:
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diff changeset
220 # Unhandled mode changing
132
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diff changeset
221 unhandled = True
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diff changeset
222
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diff changeset
223 if unhandled:
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diff changeset
224 self.mode = old_mode
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diff changeset
225 return 'Error: unhandled mode changing from '+self.mode+' to '+new_mode
118
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diff changeset
226
132
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diff changeset
227 if old_mode == 'bypass':
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diff changeset
228 # From bypass to *
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diff changeset
229 for p in self.participants:
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diff changeset
230 if p.nickname != p.duplicate_nickname:
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diff changeset
231 p.leave('Bridge is switching to '+new_mode+' mode')
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parents: 131
diff changeset
232
180
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diff changeset
233 self.say(say_levels.notice, 'Bridge is switching from '+old_mode+' to '+new_mode+' mode.', log=True)
118
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diff changeset
234
b29fd5696a78 new mode bypass and new method bridge.changeMode
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diff changeset
235
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diff changeset
236 def get_participant(self, nickname):
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diff changeset
237 """Returns a participant object if there is a participant using nickname in the bridge. Raises a NoSuchParticipantException otherwise."""
24
4e1f27ea527b First hack at locks for thread safety. Some other minor changes.
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diff changeset
238 self.lock.acquire()
118
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diff changeset
239 for p in self.participants:
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diff changeset
240 if nickname in [p.nickname, p.duplicate_nickname]:
24
4e1f27ea527b First hack at locks for thread safety. Some other minor changes.
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diff changeset
241 self.lock.release()
118
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diff changeset
242 return p
24
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diff changeset
243 self.lock.release()
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diff changeset
244 raise self.NoSuchParticipantException('there is no participant using the nickname "'+nickname+'" in this bridge')
0
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245
4c842d23d4ce Initial commit, version 0.1
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246
17
32a35f7eff70 Rewrote/modified many things, multiple bridges should now work and are preferred over multiple bots.
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diff changeset
247 def get_participants_nicknames_list(self, protocols=['irc', 'xmpp']):
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diff changeset
248 """Returns a list of the nicknames of the bridge's participants that are connected on the XMPP side."""
24
4e1f27ea527b First hack at locks for thread safety. Some other minor changes.
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parents: 22
diff changeset
249 self.lock.acquire()
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diff changeset
250 participants_nicknames = []
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diff changeset
251 for p in self.participants:
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parents: 15
diff changeset
252 if p.protocol in protocols:
18
3cdf7bb580da Fixed bot.respond(), boosted XMPP thread to lower latency, fixed mode notice.
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parents: 17
diff changeset
253 participants_nicknames.append('"'+p.nickname+'"')
24
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parents: 22
diff changeset
254 self.lock.release()
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parents: 15
diff changeset
255 return participants_nicknames
11
79b0a7f48a3e Introduced the command mechanism and fixed a bug
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parents: 10
diff changeset
256
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parents: 10
diff changeset
257
203
2a81c480439a renamed camelCased functions
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diff changeset
258 def has_participant(self, nickname):
62
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diff changeset
259 try:
203
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260 self.get_participant(nickname)
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261 return True
124
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262 except self.NoSuchParticipantException:
62
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263 return False
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264
61491895c607 Added bridge.hasParticipant() and fixed participant.changeNickname()
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265
203
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266 def remove_participant(self, left_protocol, nickname, leave_message):
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267 """Remove the participant using nickname from the bridge. Raises a NoSuchParticipantException if nickname is not used in the bridge."""
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268
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269 was_on_both = None
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270 p = self.get_participant(nickname)
189
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271
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272 if p.left:
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273 self.lock.acquire()
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274 self.participants.remove(p)
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275 del p
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276 self.lock.release()
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277 return
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278
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279 if p.protocol == 'xmpp':
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280 if p.irc_connection == 'both':
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281 was_on_both = True
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282 if left_protocol == 'xmpp':
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283 p.protocol = 'irc'
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284 p.create_duplicate_on_xmpp()
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285 elif left_protocol == 'irc':
203
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286 p.create_duplicate_on_irc()
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287 else:
100
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288 if left_protocol == 'xmpp':
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289 was_on_both = False
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290 elif left_protocol == 'irc':
189
e04410e7e527 split the leaving process in two, first call to Bridge.removeParticipant() calls Participant.leave(), second call (when the bot receives the part or quit event) removes it from Bridge.participants
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291 # got disconnected somehow
131
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292 if isinstance(p.irc_connection, ServerConnection):
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293 p.irc_connection.join(self.irc_room)
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294 else:
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295 c = self.bot.irc.get_connection(self.irc_server, self.irc_port, p.duplicate_nickname)
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296 if not (c and self.irc_room in c.left_channels):
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297 p._close_irc_connection(leave_message)
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298 p.create_duplicate_on_irc()
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299 return
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300
32a35f7eff70 Rewrote/modified many things, multiple bridges should now work and are preferred over multiple bots.
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301 elif p.protocol == 'irc':
84
844ccdcf66be Fixed callbacks, addParticipant, removeParticipant and __del__ in bridge.py
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302 if p.xmpp_c == 'both':
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303 was_on_both = True
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304 if left_protocol == 'irc':
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305 p.protocol = 'xmpp'
203
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306 p.create_duplicate_on_irc()
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diff changeset
307 elif left_protocol == 'xmpp':
203
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308 p.create_duplicate_on_xmpp()
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309 else:
100
6289ac5a2db7 Reconnect when a connection is closed
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310 if left_protocol == 'irc':
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311 was_on_both = False
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312 elif left_protocol == 'xmpp':
189
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313 # got disconnected somehow
100
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314 if isinstance(p.xmpp_c, xmpp.client.Client):
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315 self.bot.reopen_xmpp_connection(p.xmpp_c)
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diff changeset
316 return
17
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diff changeset
317
0
4c842d23d4ce Initial commit, version 0.1
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318 else:
19
c1b84196c100 Changed format of non-debug error messages, fixed IRC namreply handling, prevented crash when receiving bad XMPP stanza.
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319 raise Exception('[Internal Error] bad protocol')
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320
32a35f7eff70 Rewrote/modified many things, multiple bridges should now work and are preferred over multiple bots.
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321 if was_on_both == True:
180
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322 self.bot.error(3, '"'+nickname+'" was on both sides of bridge "'+str(self)+'" but left '+left_protocol, debug=True)
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323
32a35f7eff70 Rewrote/modified many things, multiple bridges should now work and are preferred over multiple bots.
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324 elif was_on_both == False:
180
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325 self.bot.error(3, 'removing participant "'+nickname+'" from bridge "'+str(self)+'"', debug=True)
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326 p.leave(leave_message)
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327 if left_protocol == 'xmpp':
118
b29fd5696a78 new mode bypass and new method bridge.changeMode
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diff changeset
328 if self.mode not in ['normal', 'bypass']:
152
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329 self.show_participants_list_on(protocols=['irc'])
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330 elif left_protocol == 'irc':
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4e1f27ea527b First hack at locks for thread safety. Some other minor changes.
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diff changeset
331 if self.mode == 'minimal':
152
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332 self.show_participants_list_on(protocols=['xmpp'])
189
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333
17
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diff changeset
334 else:
201
de574314990e log some more things when Bot.debug is False
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diff changeset
335 self.bot.error(say_levels.debug, 'Bad decision tree, p.protocol='+p.protocol+' left_protocol='+left_protocol+'\np.xmpp_c='+str(p.xmpp_c)+'\np.irc_connection='+str(p.irc_connection), send_to_admins=True)
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336
4c842d23d4ce Initial commit, version 0.1
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parents:
diff changeset
337
205
85a8b457c4b4 bugfix, added optional "message" argument to Bridge.restart(), needed since fa73f1292eafabf2ef868c2b056fe045a0704e97
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diff changeset
338 def restart(self, message='Restarting bridge', log=True):
103
23416c27b592 New command system
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diff changeset
339 """Restart the bridge"""
23416c27b592 New command system
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340
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341 # Stop the bridge
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342 self.stop(message=message, log=log)
103
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343
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344 # Recreate the bridge
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345 self.init2()
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346
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347
180
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diff changeset
348 def say(self, importance, message, on_irc=True, on_xmpp=True, log=False, send_to_admins=False):
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349 """Make the bot say something."""
180
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350 if log or send_to_admins:
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351 self.bot.error(importance, message+' ('+str(self)+')', send_to_admins=send_to_admins)
197
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diff changeset
352 if importance != -1:
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353 message = self.bot.format_message(importance, message)
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diff changeset
354 if importance < self.say_level:
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diff changeset
355 return
213
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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356 if on_xmpp:
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357 self._say_on_xmpp(message)
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diff changeset
358 if on_irc:
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
359 self._say_on_irc(message)
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diff changeset
360
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
361
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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362 def say_on_behalf(self, nickname, message, on_protocol, action=False):
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diff changeset
363 if action:
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diff changeset
364 message = '* '+nickname+' '+message
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diff changeset
365 else:
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366 message = '<'+nickname+'> '+message
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diff changeset
367
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
368 if on_protocol == 'xmpp':
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diff changeset
369 self._say_on_xmpp(message)
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370 elif on_protocol == 'irc':
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diff changeset
371 self._say_on_irc(message)
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diff changeset
372
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
373
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
374 def _say_on_irc(self, message):
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diff changeset
375 self.irc_connection.privmsg(self.irc_room, message)
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diff changeset
376
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
377
fbe40b397f67 created Bridge.say_on_behalf in order to avoid code repetition in participant.py
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diff changeset
378 def _say_on_xmpp(self, message):
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diff changeset
379 self.xmpp_room.say(message)
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381
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382 def show_participants_list_on(self, protocols=[]):
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383 if 'irc' in protocols and self.irc_connection.really_connected:
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384 xmpp_participants_nicknames = self.get_participants_nicknames_list(protocols=['xmpp'])
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385 self.say(say_levels.info, 'Participants on XMPP: '+' '.join(xmpp_participants_nicknames), on_xmpp=False)
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386 if 'xmpp' in protocols:
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387 irc_participants_nicknames = self.get_participants_nicknames_list(protocols=['irc'])
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388 self.say(say_levels.info, 'Participants on IRC: '+' '.join(irc_participants_nicknames), on_irc=False)
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390
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391 def stop(self, message='Stopping bridge', log=True):
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392 """Stop the bridge"""
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393
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394 # Close IRC connection if not used by an other bridge, just leave the room otherwise
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395 if isinstance(self.irc_connection, ServerConnection):
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396 self.irc_connection.used_by -= 1
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397 if self.irc_connection.used_by < 1:
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398 self.irc_connection.close(message)
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399 else:
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400 self.irc_connection.part(self.irc_room, message=message)
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401 self.irc_connection = None
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402
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403 # Leave the MUC
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404 if isinstance(self.xmpp_room, xmpp.muc):
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405 self.xmpp_room.leave(message=message)
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406 self.xmpp_room.__del__()
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407 self.xmpp_room = None
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408
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409 # Delete participants objects
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410 for p in self.participants:
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411 p.leave(message)
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412 self.participants = []
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414 if log:
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415 self.bot.error(-1, message+' '+str(self), send_to_admins=True)
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417
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418 def __str__(self):
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419 return self.irc_room+'@'+self.irc_server+' <-> '+self.xmpp_room_jid
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422 def __del__(self):
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423 self.stop(message='Removing bridge')