Mercurial > xib
annotate bridge.py @ 206:ba5ecd71065f
bugfix, we don't delete Bridge.reconnecting since 3518e463b82185bde91a61a810d38dbf58e55147
Signed-off-by: Charly COSTE <changaco@changaco.net>
author | Charly COSTE <changaco@changaco.net> |
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date | Sat, 27 Feb 2010 12:55:28 +0100 |
parents | 85a8b457c4b4 |
children | fbe40b397f67 |
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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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16 |
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17 |
124 | 18 import re |
19 import threading | |
20 import traceback | |
21 | |
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 |
124 | 26 |
27 from participant import Participant | |
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28 import say_levels |
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29 |
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30 |
124 | 31 class Bridge: |
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32 |
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33 modes = ['bypass', 'normal', 'limited', 'minimal'] |
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34 |
124 | 35 class NoSuchParticipantException(Exception): pass |
36 | |
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 |
187 | 46 self.irc_op = False |
103 | 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 self.reconnecting = False |
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51 if mode not in self.__class__.modes: |
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52 raise Exception('[Error] "'+mode+'" is not a correct value for a bridge\'s "mode" attribute') |
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53 self.mode = mode |
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54 |
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55 self.lock = threading.RLock() |
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56 |
103 | 57 self.init2() |
58 | |
59 | |
60 def init2(self): | |
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61 self.reconnecting = False |
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62 |
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63 # Join XMPP room |
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64 self.xmpp_room = xmpp.muc(self.xmpp_room_jid) |
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65 self.xmpp_room.join(self.bot.xmpp_c, self.bot.nickname, callback=self._xmpp_join_callback) |
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66 |
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67 # Join IRC room |
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68 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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69 self.irc_connection.connect(nick_callback=self._irc_nick_callback, charsets=self.irc_charsets) |
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70 |
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71 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 |
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74 def _join_irc_failed(self, reason): |
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75 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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76 self.stop(message='Failed to connect to the IRC chan, stopping bridge', log=False) |
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77 |
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78 |
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79 def _irc_nick_callback(self, error, arguments=[]): |
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80 if error == None: |
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81 if self.mode == None: |
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82 return |
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83 self.irc_connection.join(self.irc_room) |
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84 self.bot.error(3, 'successfully connected on IRC side of bridge "'+str(self)+'"', debug=True) |
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85 self.say(say_levels.notice, 'bridge "'+str(self)+'" is running in '+self.mode+' mode', on_xmpp=False) |
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86 if self.mode not in ['normal', 'bypass']: |
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87 self.show_participants_list_on(protocols=['irc']) |
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88 else: |
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89 self.mode = None |
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90 self.say(say_levels.error, 'failed to connect to the IRC chan, leaving ...', on_irc=False) |
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91 if error in ['nicknameinuse', 'nickcollision']: |
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92 reason = '"'+self.bot.nickname+'" is already used or reserved on the IRC server' |
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93 elif error == 'erroneusnickname': |
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94 reason = '"'+self.bot.nickname+'" got "erroneusnickname"' |
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95 elif error == 'nicknametoolong': |
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96 reason = '"'+self.bot.nickname+'" got "nicknametoolong", limit seems to be '+str(arguments[0]) |
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97 else: |
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98 reason = error |
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99 self._join_irc_failed(reason) |
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100 |
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101 |
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102 def _RemoteServerNotFound_handler(self): |
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103 server = xmpp.protocol.JID(self.xmpp_room_jid).getDomain() |
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104 bridges = self.bot.find_bridges([server]) |
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105 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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106 self.bot.restart_bridges_delayed(bridges, 300, error) |
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107 |
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108 |
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109 def _xmpp_join_callback(self, errors): |
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110 """Called by muc._xmpp_presence_handler""" |
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111 if len(errors) == 0: |
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112 self.reconnecting = False |
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113 if self.mode == None: |
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114 return |
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115 self.bot.error(3, 'succesfully connected on XMPP side of bridge "'+str(self)+'"', debug=True) |
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116 self.say(say_levels.notice, 'bridge "'+str(self)+'" is running in '+self.mode+' mode', on_irc=False) |
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117 else: |
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118 self.mode = None |
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119 self.say(say_levels.error, 'failed to connect to the XMPP room, leaving ...', on_xmpp=False) |
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120 for error in errors: |
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121 try: |
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122 raise error |
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123 except xmpp.muc.RemoteServerNotFound: |
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124 self._RemoteServerNotFound_handler() |
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125 except: |
176
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126 trace = traceback.format_exc() |
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127 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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128 self.stop(message='Failed to connect to the XMPP room, stopping bridge') |
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129 |
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130 |
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131 def add_participant(self, from_protocol, nickname, real_jid=None, irc_id=None): |
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132 """Add a participant to the bridge.""" |
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133 if (from_protocol == 'irc' and nickname == self.bot.nickname) or (from_protocol == 'xmpp' and nickname == self.bot.nickname): |
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134 self.bot.error(3, 'not adding self ('+self.bot.nickname+') to bridge "'+str(self)+'"', debug=True) |
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135 return |
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136 try: |
203
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137 p = self.get_participant(nickname) |
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138 if p.protocol != from_protocol: |
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139 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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140 if irc_id: |
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141 p.irc_connection.irc_id = irc_id |
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142 return p |
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143 p.set_both_sides() |
109 | 144 return p |
124 | 145 except self.NoSuchParticipantException: |
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146 pass |
118
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147 |
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148 if nickname == 'ChanServ' and from_protocol == 'irc': |
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149 return |
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150 |
180
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151 self.bot.error(3, 'adding participant "'+nickname+'" from "'+from_protocol+'" to bridge "'+str(self)+'"', debug=True) |
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152 try: |
124 | 153 p = Participant(self, from_protocol, nickname, real_jid=real_jid) |
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154 except: |
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155 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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156 return |
191
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157 self.lock.acquire() |
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158 self.participants.append(p) |
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159 self.lock.release() |
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160 if self.mode not in ['normal', 'bypass']: |
102
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161 if from_protocol == 'xmpp': |
152
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162 self.show_participants_list_on(protocols=['irc']) |
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163 elif self.mode == 'minimal' and from_protocol == 'irc': |
152
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164 self.show_participants_list_on(protocols=['xmpp']) |
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165 return p |
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166 |
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167 |
203
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168 def create_duplicates_on(self, protocols): |
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169 for p in self.participants: |
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170 if p.protocol == 'xmpp' and 'irc' in protocols: |
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171 p.create_duplicate_on_irc() |
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172 elif p.protocol == 'irc' and 'xmpp' in protocols: |
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173 p.create_duplicate_on_xmpp() |
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174 |
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175 |
203
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176 def change_mode(self, new_mode): |
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177 if new_mode == self.mode: |
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178 return 'Mode is already equal to '+self.mode |
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179 |
132
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180 old_mode = self.mode |
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181 self.mode = new_mode |
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182 |
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183 unhandled = False |
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184 |
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185 if new_mode in ['normal', 'bypass']: |
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186 |
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187 if old_mode == 'limited': |
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188 # From limited to {normal,bypass} |
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189 self.create_duplicates_on(['irc']) |
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190 |
132
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191 elif old_mode in ['minimal', 'normal']: |
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192 # From {minimal,normal} to {normal,bypass} |
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193 self.create_duplicates_on(['irc', 'xmpp']) |
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194 |
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195 elif old_mode == 'bypass': |
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196 # From bypass to normal |
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197 pass # Handled below |
118
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198 |
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199 else: |
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200 # Unhandled mode changing |
132
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201 unhandled = True |
118
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202 |
152
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203 elif new_mode == 'limited': |
118
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204 |
139
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205 if old_mode == 'minimal': |
203
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206 self.create_duplicates_on(['xmpp']) |
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207 |
118
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208 i = 0 |
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209 for p in self.participants: |
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210 if p.protocol == 'xmpp': |
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211 i += 1 |
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212 p._close_irc_connection('Bridge is switching to limited mode') |
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213 |
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214 self.show_participants_list_on(protocols=['irc']) |
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215 |
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216 elif new_mode == 'minimal': |
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217 for p in self.participants: |
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218 p.leave('Bridge is switching to minimal mode') |
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219 |
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220 else: |
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221 # Unhandled mode changing |
132
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222 unhandled = True |
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223 |
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224 if unhandled: |
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225 self.mode = old_mode |
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226 return 'Error: unhandled mode changing from '+self.mode+' to '+new_mode |
118
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227 |
132
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228 if old_mode == 'bypass': |
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229 # From bypass to * |
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230 for p in self.participants: |
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231 if p.nickname != p.duplicate_nickname: |
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232 p.leave('Bridge is switching to '+new_mode+' mode') |
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233 |
180
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234 self.say(say_levels.notice, 'Bridge is switching from '+old_mode+' to '+new_mode+' mode.', log=True) |
118
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235 |
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236 |
203
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237 def get_participant(self, nickname): |
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238 """Returns a participant object if there is a participant using nickname in the bridge. Raises a NoSuchParticipantException otherwise.""" |
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239 self.lock.acquire() |
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240 for p in self.participants: |
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241 if nickname in [p.nickname, p.duplicate_nickname]: |
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242 self.lock.release() |
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243 return p |
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244 self.lock.release() |
124 | 245 raise self.NoSuchParticipantException('there is no participant using the nickname "'+nickname+'" in this bridge') |
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246 |
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247 |
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248 def get_participants_nicknames_list(self, protocols=['irc', 'xmpp']): |
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249 """Returns a list of the nicknames of the bridge's participants that are connected on the XMPP side.""" |
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250 self.lock.acquire() |
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251 participants_nicknames = [] |
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252 for p in self.participants: |
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253 if p.protocol in protocols: |
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254 participants_nicknames.append('"'+p.nickname+'"') |
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255 self.lock.release() |
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256 return participants_nicknames |
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257 |
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258 |
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259 def has_participant(self, nickname): |
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260 try: |
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261 self.get_participant(nickname) |
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262 return True |
124 | 263 except self.NoSuchParticipantException: |
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264 return False |
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265 |
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266 |
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267 def remove_participant(self, left_protocol, nickname, leave_message): |
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268 """Remove the participant using nickname from the bridge. Raises a NoSuchParticipantException if nickname is not used in the bridge.""" |
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269 |
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270 was_on_both = None |
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271 p = self.get_participant(nickname) |
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272 |
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273 if p.left: |
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274 self.lock.acquire() |
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275 self.participants.remove(p) |
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276 del p |
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277 self.lock.release() |
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278 return |
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279 |
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280 if p.protocol == 'xmpp': |
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281 if p.irc_connection == 'both': |
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282 was_on_both = True |
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283 if left_protocol == 'xmpp': |
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284 p.protocol = 'irc' |
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285 p.create_duplicate_on_xmpp() |
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286 elif left_protocol == 'irc': |
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287 p.create_duplicate_on_irc() |
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288 else: |
100
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289 if left_protocol == 'xmpp': |
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290 was_on_both = False |
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291 elif left_protocol == 'irc': |
189
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292 # got disconnected somehow |
131
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293 if isinstance(p.irc_connection, ServerConnection): |
100
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294 p.irc_connection.join(self.irc_room) |
131
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295 else: |
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296 c = self.bot.irc.get_connection(self.irc_server, self.irc_port, p.duplicate_nickname) |
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297 if not (c and self.irc_room in c.left_channels): |
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298 p._close_irc_connection(leave_message) |
203
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299 p.create_duplicate_on_irc() |
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300 return |
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301 |
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302 elif p.protocol == 'irc': |
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303 if p.xmpp_c == 'both': |
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304 was_on_both = True |
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305 if left_protocol == 'irc': |
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306 p.protocol = 'xmpp' |
203
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307 p.create_duplicate_on_irc() |
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308 elif left_protocol == 'xmpp': |
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309 p.create_duplicate_on_xmpp() |
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310 else: |
100
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311 if left_protocol == 'irc': |
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312 was_on_both = False |
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313 elif left_protocol == 'xmpp': |
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314 # got disconnected somehow |
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315 if isinstance(p.xmpp_c, xmpp.client.Client): |
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316 self.bot.reopen_xmpp_connection(p.xmpp_c) |
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317 return |
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318 |
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319 else: |
19
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320 raise Exception('[Internal Error] bad protocol') |
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321 |
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322 if was_on_both == True: |
180
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323 self.bot.error(3, '"'+nickname+'" was on both sides of bridge "'+str(self)+'" but left '+left_protocol, debug=True) |
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324 |
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325 elif was_on_both == False: |
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326 self.bot.error(3, 'removing participant "'+nickname+'" from bridge "'+str(self)+'"', debug=True) |
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327 p.leave(leave_message) |
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328 if left_protocol == 'xmpp': |
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329 if self.mode not in ['normal', 'bypass']: |
152
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330 self.show_participants_list_on(protocols=['irc']) |
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331 elif left_protocol == 'irc': |
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332 if self.mode == 'minimal': |
152
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333 self.show_participants_list_on(protocols=['xmpp']) |
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334 |
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335 else: |
201
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336 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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337 |
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338 |
205
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339 def restart(self, message='Restarting bridge', log=True): |
103 | 340 """Restart the bridge""" |
341 | |
342 # Stop the bridge | |
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343 self.stop(message=message, log=log) |
103 | 344 |
345 # Recreate the bridge | |
346 self.init2() | |
347 | |
348 | |
180
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349 def say(self, importance, message, on_irc=True, on_xmpp=True, log=False, send_to_admins=False): |
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350 """Make the bot say something.""" |
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351 if log or send_to_admins: |
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352 self.bot.error(importance, message+' ('+str(self)+')', send_to_admins=send_to_admins) |
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353 if importance != -1: |
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354 message = self.bot.format_message(importance, message) |
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355 if importance < self.say_level: |
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356 return |
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357 if on_xmpp and isinstance(self.xmpp_room, xmpp.muc) and self.xmpp_room.connected: |
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358 self.xmpp_room.say(message) |
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359 if on_irc and isinstance(self.irc_connection, ServerConnection) and self.irc_connection.really_connected: |
56 | 360 self.irc_connection.privmsg(self.irc_room, message) |
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361 |
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362 |
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363 def show_participants_list_on(self, protocols=[]): |
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364 if 'irc' in protocols and self.irc_connection.really_connected: |
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365 xmpp_participants_nicknames = self.get_participants_nicknames_list(protocols=['xmpp']) |
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366 self.say(say_levels.info, 'Participants on XMPP: '+' '.join(xmpp_participants_nicknames), on_xmpp=False) |
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367 if 'xmpp' in protocols: |
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368 irc_participants_nicknames = self.get_participants_nicknames_list(protocols=['irc']) |
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369 self.say(say_levels.info, 'Participants on IRC: '+' '.join(irc_participants_nicknames), on_irc=False) |
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370 |
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371 |
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372 def stop(self, message='Stopping bridge', log=True): |
103 | 373 """Stop the bridge""" |
374 | |
375 # Close IRC connection if not used by an other bridge, just leave the room otherwise | |
109 | 376 if isinstance(self.irc_connection, ServerConnection): |
377 self.irc_connection.used_by -= 1 | |
378 if self.irc_connection.used_by < 1: | |
379 self.irc_connection.close(message) | |
380 else: | |
381 self.irc_connection.part(self.irc_room, message=message) | |
382 self.irc_connection = None | |
103 | 383 |
384 # Leave the MUC | |
109 | 385 if isinstance(self.xmpp_room, xmpp.muc): |
386 self.xmpp_room.leave(message=message) | |
387 self.xmpp_room.__del__() | |
388 self.xmpp_room = None | |
103 | 389 |
390 # Delete participants objects | |
391 for p in self.participants: | |
392 p.leave(message) | |
393 self.participants = [] | |
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394 |
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395 if log: |
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396 self.bot.error(-1, message+' '+str(self), send_to_admins=True) |
103 | 397 |
398 | |
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399 def __str__(self): |
103 | 400 return self.irc_room+'@'+self.irc_server+' <-> '+self.xmpp_room_jid |
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401 |
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402 |
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403 def __del__(self): |
103 | 404 self.stop(message='Removing bridge') |