Mercurial > libervia-backend
annotate src/plugins/plugin_misc_text_commands.py @ 945:899dc9cd0f35
plugin XEP-0092: feature check before requesting version
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Fri, 28 Mar 2014 18:19:29 +0100 |
| parents | 059b56cbd247 |
| children | 301b342c697a |
| rev | line source |
|---|---|
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1 #!/usr/bin/python |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SàT plugin for managing text commands |
| 811 | 5 # Copyright (C) 2009, 2010, 2011, 2012, 2013, 2014 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 |
| 771 | 20 from sat.core.i18n import _ |
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21 from sat.core.constants import Const as C |
| 921 | 22 from sat.core.sat_main import MessageSentAndStored |
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23 from twisted.words.protocols.jabber import jid |
| 921 | 24 from twisted.internet import defer |
| 25 from twisted.python.failure import Failure | |
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26 from logging import debug, info, warning, error |
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27 |
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28 PLUGIN_INFO = { |
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29 "name": "Text commands", |
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30 "import_name": C.TEXT_CMDS, |
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31 "type": "Misc", |
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32 "protocols": [], |
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33 "dependencies": [], |
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34 "main": "TextCommands", |
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35 "handler": "no", |
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36 "description": _("""IRC like text commands""") |
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37 } |
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38 |
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39 |
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40 class TextCommands(object): |
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41 #FIXME: doc strings for commands have to be translatable |
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42 # plugins need a dynamic translation system (translation |
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43 # should be downloadable independently) |
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44 |
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45 def __init__(self, host): |
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46 info(_("Text commands initialization")) |
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47 self.host = host |
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48 host.trigger.add("sendMessage", self.sendMessageTrigger) |
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49 self._commands = {} |
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50 self._whois = [] |
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51 self.registerTextCommands(self) |
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52 |
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53 def registerTextCommands(self, instance): |
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54 """ Add a text command |
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55 @param instance: instance of a class containing text commands |
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56 |
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57 """ |
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58 for attr in dir(instance): |
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59 if attr.startswith('cmd_'): |
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60 cmd = getattr(instance, attr) |
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61 if not callable(cmd): |
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62 warning(_("Skipping not callable [%s] attribute") % attr) |
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63 continue |
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64 cmd_name = attr[4:] |
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65 if not cmd_name: |
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66 warning(_("Skipping cmd_ method")) |
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67 if cmd_name in self._commands: |
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68 suff=2 |
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69 while (cmd_name + str(suff)) in self._commands: |
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70 suff+=1 |
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71 new_name = cmd_name + str(suff) |
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72 warning(_("Conflict for command [%(old_name)s], renaming it to [%(new_name)s]") % {'old_name': cmd_name, 'new_name': new_name}) |
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73 cmd_name = new_name |
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74 self._commands[cmd_name] = cmd |
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75 info(_("Registered text command [%s]") % cmd_name) |
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76 |
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77 def addWhoIsCb(self, callback, priority=0): |
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78 """Add a callback which give information to the /whois command |
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79 @param callback: a callback which will be called with the following arguments |
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80 - whois_msg: list of information strings to display, callback need to append its own strings to it |
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81 - target_jid: full jid from who we want informations |
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82 - profile: %(doc_profile)s |
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83 @param priority: priority of the information to show (the highest priority will be displayed first) |
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84 |
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85 """ |
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86 self._whois.append((priority, callback)) |
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87 self._whois.sort(key=lambda item: item[0], reverse=True) |
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88 |
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89 def sendMessageTrigger(self, mess_data, pre_xml_treatments, post_xml_treatments, profile): |
| 921 | 90 """ Install SendMessage command hook """ |
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91 pre_xml_treatments.addCallback(self._sendMessageCmdHook, profile) |
| 921 | 92 return True |
| 93 | |
| 94 def _sendMessageCmdHook(self, mess_data, profile): | |
| 95 """ Check text commands in message, and react consequently | |
| 96 msg starting with / are potential command. If a command is found, it is executed, else message is sent normally | |
| 97 msg starting with // are escaped: they are sent with a single / | |
| 98 commands can abord message sending (if they return anything evaluating to False), or continue it (if they return True), eventually after modifying the message | |
| 99 an "unparsed" key is added to message, containing part of the message not yet parsed | |
| 100 commands can be deferred or not | |
| 101 | |
| 102 """ | |
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103 msg = mess_data["message"] |
| 921 | 104 try: |
| 105 if msg[:2] == '//': | |
| 106 # we have a double '/', it's the escape sequence | |
| 107 mess_data["message"] = msg[1:] | |
| 108 return mess_data | |
| 109 if msg[0] != '/': | |
| 110 return mess_data | |
| 111 except IndexError: | |
| 112 return mess_data | |
| 113 | |
| 114 # we have a command | |
| 115 d = None | |
| 116 command = msg[1:].partition(' ')[0].lower() | |
| 117 if command.isalpha(): | |
| 118 # looks like an actual command, we try to call the corresponding method | |
| 119 def retHandling(ret): | |
| 120 """ Handle command return value: | |
| 121 if ret is True, normally send message (possibly modified by command) | |
| 122 else, abord message sending | |
| 123 | |
| 124 """ | |
| 125 if ret: | |
| 126 return mess_data | |
| 127 else: | |
| 128 return Failure(MessageSentAndStored("text commands took over", mess_data)) | |
| 129 | |
| 130 try: | |
| 131 mess_data["unparsed"] = msg[1 + len(command):] # part not yet parsed of the message | |
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132 d = defer.maybeDeferred(self._commands[command], mess_data, profile) |
| 921 | 133 d.addCallback(retHandling) |
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134 except KeyError: |
| 921 | 135 pass |
| 136 | |
| 137 return d or mess_data # if a command is detected, we should have a deferred, else be send the message normally | |
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138 |
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139 def getRoomJID(self, arg, service_jid): |
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140 """Return a room jid with a shortcut |
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141 @param arg: argument: can be a full room jid (e.g.: sat@chat.jabberfr.org) |
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142 or a shortcut (e.g.: sat or sat@ for sat on current service) |
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143 @param service_jid: jid of the current service (e.g.: chat.jabberfr.org) |
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144 """ |
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145 nb_arobas = arg.count('@') |
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146 if nb_arobas == 1: |
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147 if arg[-1] != '@': |
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148 return jid.JID(arg) |
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149 return jid.JID(arg + service_jid) |
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150 return jid.JID(u"%s@%s" % (arg, service_jid)) |
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151 |
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152 def feedBack(self, message, mess_data, profile): |
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153 """Give a message back to the user""" |
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154 if mess_data["type"] == 'groupchat': |
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155 _from = mess_data["to"].userhostJID() |
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156 else: |
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157 _from = self.host.getJidNStream(profile)[0] |
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158 |
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159 self.host.bridge.newMessage(unicode(mess_data["to"]), message, mess_data['type'], unicode(_from), {}, profile=profile) |
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160 |
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161 def cmd_whois(self, mess_data, profile): |
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162 """show informations on entity""" |
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163 debug("Catched whois command") |
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164 |
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165 entity = mess_data["unparsed"].strip() |
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166 |
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167 if mess_data['type'] == "groupchat": |
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168 room = mess_data["to"].userhostJID() |
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169 try: |
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170 if self.host.plugins["XEP-0045"].isNickInRoom(room, entity, profile): |
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171 entity = u"%s/%s" % (room, entity) |
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172 except KeyError: |
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173 warning("plugin XEP-0045 is not present") |
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174 |
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175 if not entity: |
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176 target_jid = mess_data["to"] |
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177 else: |
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178 try: |
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179 target_jid = jid.JID(entity) |
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180 if not target_jid.user or not target_jid.host: |
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181 raise jid.InvalidFormat |
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182 except (jid.InvalidFormat, RuntimeError): |
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183 self.feedBack(_("Invalid jid, can't whois"), mess_data, profile) |
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184 return False |
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185 |
| 921 | 186 if not target_jid.resource: |
| 187 target_jid.resource = self.host.memory.getLastResource(target_jid, profile) | |
| 188 | |
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189 whois_msg = [_(u"whois for %(jid)s") % {'jid': target_jid}] |
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190 |
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191 d = defer.succeed(None) |
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192 for ignore, callback in self._whois: |
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193 d.addCallback(lambda ignore: callback(whois_msg, mess_data, target_jid, profile)) |
| 921 | 194 |
| 195 def feedBack(ignore): | |
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196 self.feedBack(u"\n".join(whois_msg), mess_data, profile) |
| 921 | 197 return False |
| 198 | |
| 199 d.addCallback(feedBack) | |
| 200 return d | |
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201 |
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202 def cmd_help(self, mess_data, profile): |
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203 """show help on available commands""" |
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204 commands = filter(lambda method: method.startswith('cmd_'), dir(self)) |
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205 longuest = max([len(command) for command in commands]) |
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206 help_cmds = [] |
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207 |
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208 for command in sorted(self._commands): |
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209 method = self._commands[command] |
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210 try: |
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211 help_str = method.__doc__.split('\n')[0] |
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212 except AttributeError: |
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213 help_str = '' |
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214 spaces = (longuest - len(command)) * ' ' |
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215 help_cmds.append(" /%s: %s %s" % (command, spaces, help_str)) |
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216 |
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217 help_mess = _(u"Text commands available:\n%s") % (u'\n'.join(help_cmds), ) |
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218 self.feedBack(help_mess, mess_data, profile) |