Mercurial > libervia-backend
annotate src/plugins/plugin_misc_text_commands.py @ 1244:c3884a63efde
plugin XEP-0115: better disco error handling
| author | souliane <souliane@mailoo.org> |
|---|---|
| date | Sun, 19 Oct 2014 11:54:07 +0200 |
| parents | 96fb74a4714d |
| children | faa1129559b8 |
| 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 |
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22 from sat.core import exceptions |
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23 from twisted.words.protocols.jabber import jid |
| 921 | 24 from twisted.internet import defer |
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25 from sat.core.log import getLogger |
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26 log = getLogger(__name__) |
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27 from twisted.python import failure |
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28 |
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29 PLUGIN_INFO = { |
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30 "name": "Text commands", |
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31 "import_name": C.TEXT_CMDS, |
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32 "type": "Misc", |
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33 "protocols": [], |
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34 "dependencies": [], |
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35 "main": "TextCommands", |
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36 "handler": "no", |
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37 "description": _("""IRC like text commands""") |
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38 } |
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39 |
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40 |
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41 class TextCommands(object): |
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42 #FIXME: doc strings for commands have to be translatable |
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43 # plugins need a dynamic translation system (translation |
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44 # should be downloadable independently) |
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45 |
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46 HELP_SUGGESTION = _("Type '/help' to get a list of the available commands. If you didn't want to use a command, please start your message with '//' to escape the slash.") |
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47 |
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48 def __init__(self, host): |
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49 log.info(_("Text commands initialization")) |
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50 self.host = host |
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51 host.trigger.add("sendMessage", self.sendMessageTrigger) |
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52 self._commands = {} |
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53 self._whois = [] |
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54 self.registerTextCommands(self) |
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55 |
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56 def registerTextCommands(self, instance): |
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57 """ Add a text command |
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58 @param instance: instance of a class containing text commands |
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59 |
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60 """ |
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61 for attr in dir(instance): |
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62 if attr.startswith('cmd_'): |
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63 cmd = getattr(instance, attr) |
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64 if not callable(cmd): |
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65 log.warning(_("Skipping not callable [%s] attribute") % attr) |
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66 continue |
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67 cmd_name = attr[4:] |
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68 if not cmd_name: |
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69 log.warning(_("Skipping cmd_ method")) |
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70 if cmd_name in self._commands: |
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71 suff=2 |
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72 while (cmd_name + str(suff)) in self._commands: |
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73 suff+=1 |
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74 new_name = cmd_name + str(suff) |
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75 log.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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76 cmd_name = new_name |
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77 self._commands[cmd_name] = cmd |
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78 log.info(_("Registered text command [%s]") % cmd_name) |
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79 |
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80 def addWhoIsCb(self, callback, priority=0): |
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81 """Add a callback which give information to the /whois command |
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82 @param callback: a callback which will be called with the following arguments |
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83 - whois_msg: list of information strings to display, callback need to append its own strings to it |
| 1199 | 84 - target_jid: full jid from whom we want information |
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85 - profile: %(doc_profile)s |
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86 @param priority: priority of the information to show (the highest priority will be displayed first) |
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87 |
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88 """ |
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89 self._whois.append((priority, callback)) |
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90 self._whois.sort(key=lambda item: item[0], reverse=True) |
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91 |
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92 def sendMessageTrigger(self, mess_data, pre_xml_treatments, post_xml_treatments, profile): |
| 921 | 93 """ Install SendMessage command hook """ |
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94 pre_xml_treatments.addCallback(self._sendMessageCmdHook, profile) |
| 921 | 95 return True |
| 96 | |
| 97 def _sendMessageCmdHook(self, mess_data, profile): | |
| 98 """ Check text commands in message, and react consequently | |
| 99 msg starting with / are potential command. If a command is found, it is executed, else message is sent normally | |
| 100 msg starting with // are escaped: they are sent with a single / | |
| 101 commands can abord message sending (if they return anything evaluating to False), or continue it (if they return True), eventually after modifying the message | |
| 102 an "unparsed" key is added to message, containing part of the message not yet parsed | |
| 103 commands can be deferred or not | |
| 104 | |
| 105 """ | |
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106 msg = mess_data["message"] |
| 921 | 107 try: |
| 108 if msg[:2] == '//': | |
| 109 # we have a double '/', it's the escape sequence | |
| 110 mess_data["message"] = msg[1:] | |
| 111 return mess_data | |
| 112 if msg[0] != '/': | |
| 113 return mess_data | |
| 114 except IndexError: | |
| 115 return mess_data | |
| 116 | |
| 117 # we have a command | |
| 118 d = None | |
| 119 command = msg[1:].partition(' ')[0].lower() | |
| 120 if command.isalpha(): | |
| 121 # looks like an actual command, we try to call the corresponding method | |
| 122 def retHandling(ret): | |
| 123 """ Handle command return value: | |
| 124 if ret is True, normally send message (possibly modified by command) | |
| 125 else, abord message sending | |
| 126 | |
| 127 """ | |
| 128 if ret: | |
| 129 return mess_data | |
| 130 else: | |
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131 log.debug("text commands took over") |
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132 raise failure.Failure(exceptions.CancelError()) |
| 921 | 133 |
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134 def genericErrback(failure): |
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135 self.feedBack("Command failed with condition '%s'" % failure.value.condition, mess_data, profile) |
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136 return False |
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137 |
| 921 | 138 try: |
| 139 mess_data["unparsed"] = msg[1 + len(command):] # part not yet parsed of the message | |
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140 d = defer.maybeDeferred(self._commands[command], mess_data, profile) |
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141 d.addCallbacks(lambda ret: ret, genericErrback) # XXX: dummy callback is needed |
| 921 | 142 d.addCallback(retHandling) |
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143 |
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144 except KeyError: |
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145 self.feedBack(_("Unknown command /%s. ") % command + self.HELP_SUGGESTION, mess_data, profile) |
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146 log.debug("text commands took over") |
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147 raise failure.Failure(exceptions.CancelError()) |
| 921 | 148 |
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149 return d or mess_data # if a command is detected, we should have a deferred, else we send the message normally |
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150 |
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151 def getRoomJID(self, arg, service_jid): |
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152 """Return a room jid with a shortcut |
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153 @param arg: argument: can be a full room jid (e.g.: sat@chat.jabberfr.org) |
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154 or a shortcut (e.g.: sat or sat@ for sat on current service) |
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155 @param service_jid: jid of the current service (e.g.: chat.jabberfr.org) |
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156 """ |
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157 nb_arobas = arg.count('@') |
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158 if nb_arobas == 1: |
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159 if arg[-1] != '@': |
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160 return jid.JID(arg) |
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161 return jid.JID(arg + service_jid) |
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162 return jid.JID(u"%s@%s" % (arg, service_jid)) |
|
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163 |
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164 def feedBack(self, message, mess_data, profile): |
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165 """Give a message back to the user""" |
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166 if mess_data["type"] == 'groupchat': |
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167 _from = mess_data["to"].userhostJID() |
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168 else: |
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169 _from = self.host.getJidNStream(profile)[0] |
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170 |
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171 self.host.bridge.newMessage(unicode(mess_data["to"]), message, C.MESS_TYPE_INFO, unicode(_from), {}, profile=profile) |
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172 |
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173 def feedBackWrongContext(self, command, types, mess_data, profile): |
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174 """Give a generic message to the user when a command has been used in a wrong context. |
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175 |
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176 @param command (string): the command name (without the slash) |
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177 @param types (string, list): the message types to which the command applies. |
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178 @param mess_data (dict): original message data |
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179 @param profile: %(doc_profile)s |
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180 """ |
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181 if not isinstance(types, str): |
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182 types = _(' or ').join(types) |
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183 feedback = _("/%(command)s command only applies on %(type)s messages. ") % {'command': command, 'type': types} |
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184 self.host.plugins[C.TEXT_CMDS].feedBack(feedback + self.HELP_SUGGESTION, mess_data, profile) |
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185 |
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186 def cmd_whois(self, mess_data, profile): |
| 1199 | 187 """show information on entity""" |
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188 log.debug("Catched whois command") |
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189 |
|
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190 entity = mess_data["unparsed"].strip() |
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191 |
|
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192 if mess_data['type'] == "groupchat": |
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193 room = mess_data["to"].userhostJID() |
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194 try: |
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195 if self.host.plugins["XEP-0045"].isNickInRoom(room, entity, profile): |
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196 entity = u"%s/%s" % (room, entity) |
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197 except KeyError: |
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198 log.warning("plugin XEP-0045 is not present") |
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199 |
|
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200 if not entity: |
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201 target_jid = mess_data["to"] |
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202 else: |
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203 try: |
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204 target_jid = jid.JID(entity) |
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205 if not target_jid.user or not target_jid.host: |
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206 raise jid.InvalidFormat |
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207 except (jid.InvalidFormat, RuntimeError): |
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208 self.feedBack(_("Invalid jid, can't whois"), mess_data, profile) |
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209 return False |
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210 |
| 921 | 211 if not target_jid.resource: |
| 212 target_jid.resource = self.host.memory.getLastResource(target_jid, profile) | |
| 213 | |
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214 whois_msg = [_(u"whois for %(jid)s") % {'jid': target_jid}] |
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215 |
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216 d = defer.succeed(None) |
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217 for ignore, callback in self._whois: |
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218 d.addCallback(lambda ignore: callback(whois_msg, mess_data, target_jid, profile)) |
| 921 | 219 |
| 220 def feedBack(ignore): | |
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221 self.feedBack(u"\n".join(whois_msg), mess_data, profile) |
| 921 | 222 return False |
| 223 | |
| 224 d.addCallback(feedBack) | |
| 225 return d | |
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226 |
|
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227 def cmd_help(self, mess_data, profile): |
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228 """show help on available commands""" |
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229 commands = filter(lambda method: method.startswith('cmd_'), dir(self)) |
|
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230 longuest = max([len(command) for command in commands]) |
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231 help_cmds = [] |
|
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232 |
|
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233 for command in sorted(self._commands): |
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234 method = self._commands[command] |
|
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235 try: |
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236 help_str = method.__doc__.split('\n')[0] |
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237 except AttributeError: |
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238 help_str = '' |
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239 spaces = (longuest - len(command)) * ' ' |
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240 help_cmds.append(" /%s: %s %s" % (command, spaces, help_str)) |
|
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241 |
|
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242 help_mess = _(u"Text commands available:\n%s") % (u'\n'.join(help_cmds), ) |
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243 self.feedBack(help_mess, mess_data, profile) |
|
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244 |
|
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245 def cmd_me(self, mess_data, profile): |
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246 """Display a message at third person""" |
|
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plugin text commands: added /me command to avoid the need to escape the /
Goffi <goffi@goffi.org>
parents:
1002
diff
changeset
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247 # We just catch the method and continue it as the frontends should manage /me display |
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24fe24cfb363
plugin text commands: added /me command to avoid the need to escape the /
Goffi <goffi@goffi.org>
parents:
1002
diff
changeset
|
248 return True |