Mercurial > libervia-backend
annotate src/plugins/plugin_misc_text_commands.py @ 2532:772447ec070f
jp: pubsub options refactoring:
There is now only "use_pubsub", and specification are set using "pubsub_flags" argument when instantiating CommandBase.
Options are more Python Zen compliant by using explicit arguments for item, draft, url instead of trying to guess with magic keyword and type detection.
Pubsub node and item are now always using respecively "-n" and "-i" even when required, this way shell history can be used to change command more easily, and it's globally less confusing for user.
if --pubsub-url is used, elements can be overwritten with individual option (e.g. change item id with --item).
New "use_draft" argument in CommandBase, to re-use current draft or open a file path as draft.
Item can now be specified when using a draft. If it already exists, its content will be added to current draft (with a separator), to avoid loosing data.
common.BaseEdit.getItemPath could be simplified thanks to those changes.
Pubsub URI handling has been moved to base.py.
author | Goffi <goffi@goffi.org> |
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date | Wed, 21 Mar 2018 19:13:22 +0100 |
parents | 0046283a285d |
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rev | line source |
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1934
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1 #!/usr/bin/env python2 |
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2 # -*- coding: utf-8 -*- |
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3 |
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4 # SàT plugin for managing text commands |
2483 | 5 # Copyright (C) 2009-2018 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 from collections import OrderedDict |
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29 |
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30 PLUGIN_INFO = { |
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31 C.PI_NAME: "Text commands", |
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32 C.PI_IMPORT_NAME: C.TEXT_CMDS, |
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33 C.PI_TYPE: "Misc", |
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34 C.PI_PROTOCOLS: ["XEP-0245"], |
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35 C.PI_DEPENDENCIES: [], |
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36 C.PI_MAIN: "TextCommands", |
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37 C.PI_HANDLER: "no", |
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38 C.PI_DESCRIPTION: _("""IRC like text commands""") |
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39 } |
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40 |
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41 |
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42 class InvalidCommandSyntax(Exception): |
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43 """Throwed while parsing @command in docstring if syntax is invalid""" |
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44 pass |
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45 |
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46 |
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47 CMD_KEY = "@command" |
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48 CMD_TYPES = ('group', 'one2one', 'all') |
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49 FEEDBACK_INFO_TYPE = "TEXT_CMD" |
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50 |
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51 |
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52 class TextCommands(object): |
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53 #FIXME: doc strings for commands have to be translatable |
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54 # plugins need a dynamic translation system (translation |
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55 # should be downloadable independently) |
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56 |
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57 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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58 |
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59 def __init__(self, host): |
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60 log.info(_("Text commands initialization")) |
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61 self.host = host |
2128 | 62 # this is internal command, so we set high priority |
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63 host.trigger.add("sendMessage", self.sendMessageTrigger, priority=1000000) |
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64 self._commands = {} |
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65 self._whois = [] |
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66 self.registerTextCommands(self) |
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67 |
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68 def _parseDocString(self, cmd, cmd_name): |
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69 """Parse a docstring to get text command data |
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70 |
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71 @param cmd: function or method callback for the command, |
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72 its docstring will be used for self documentation in the following way: |
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73 - first line is the command short documentation, shown with /help |
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74 - @command keyword can be used, see http://wiki.goffi.org/wiki/Coding_style/en for documentation |
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75 @return (dict): dictionary with parsed data where key can be: |
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76 - "doc_short_help" (default: ""): the untranslated short documentation |
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77 - "type" (default "all"): the command type as specified in documentation |
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78 - "args" (default: ""): the arguments available, using syntax specified in documentation. |
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79 - "doc_arg_[name]": the doc of [name] argument |
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80 """ |
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81 data = OrderedDict([('doc_short_help', ""), |
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82 ('type', 'all'), |
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83 ('args', '')]) |
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84 docstring = cmd.__doc__ |
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85 if docstring is None: |
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86 log.warning(u"Not docstring found for command {}".format(cmd_name)) |
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87 docstring = "" |
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88 |
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89 doc_data = docstring.split("\n") |
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90 data["doc_short_help"] = doc_data[0] |
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91 |
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92 try: |
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93 cmd_indent = 0 # >0 when @command is found are we are parsing it |
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94 |
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95 for line in doc_data: |
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96 stripped = line.strip() |
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97 if cmd_indent and line[cmd_indent:cmd_indent+5] == " -": |
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98 colon_idx = line.find(":") |
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99 if colon_idx == -1: |
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100 raise InvalidCommandSyntax("No colon found in argument description") |
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101 arg_name = line[cmd_indent+6:colon_idx].strip() |
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102 if not arg_name: |
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103 raise InvalidCommandSyntax("No name found in argument description") |
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104 arg_help = line[colon_idx+1:].strip() |
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105 data["doc_arg_{}".format(arg_name)] = arg_help |
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106 elif cmd_indent: |
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107 # we are parsing command and indent level is not good, it's finished |
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108 break |
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109 elif stripped.startswith(CMD_KEY): |
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110 cmd_indent = line.find(CMD_KEY) |
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111 |
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112 # type |
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113 colon_idx = stripped.find(":") |
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114 if colon_idx == -1: |
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115 raise InvalidCommandSyntax("missing colon") |
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116 type_data = stripped[len(CMD_KEY):colon_idx].strip() |
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117 if len(type_data) == 0: |
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118 type_data="(all)" |
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119 elif len(type_data) <= 2 or type_data[0] != '(' or type_data[-1] != ')': |
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120 raise InvalidCommandSyntax("Bad type data syntax") |
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121 type_ = type_data[1:-1] |
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122 if type_ not in CMD_TYPES: |
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123 raise InvalidCommandSyntax("Unknown type {}".format(type_)) |
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124 data["type"] = type_ |
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125 |
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126 #args |
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127 data["args"] = stripped[colon_idx+1:].strip() |
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128 except InvalidCommandSyntax as e: |
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129 log.warning(u"Invalid command syntax for command {command}: {message}".format(command=cmd_name, message=e.message)) |
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130 |
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131 return data |
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132 |
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133 |
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134 def registerTextCommands(self, instance): |
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135 """ Add a text command |
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136 |
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137 @param instance: instance of a class containing text commands |
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138 """ |
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139 for attr in dir(instance): |
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140 if attr.startswith('cmd_'): |
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141 cmd = getattr(instance, attr) |
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142 if not callable(cmd): |
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143 log.warning(_(u"Skipping not callable [%s] attribute") % attr) |
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144 continue |
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145 cmd_name = attr[4:] |
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146 if not cmd_name: |
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147 log.warning(_("Skipping cmd_ method")) |
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148 if cmd_name in self._commands: |
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149 suff=2 |
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150 while (cmd_name + str(suff)) in self._commands: |
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151 suff+=1 |
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152 new_name = cmd_name + str(suff) |
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153 log.warning(_(u"Conflict for command [{old_name}], renaming it to [{new_name}]").format(old_name=cmd_name, new_name=new_name)) |
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154 cmd_name = new_name |
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155 self._commands[cmd_name] = cmd_data = OrderedDict({'callback':cmd}) # We use an Ordered dict to keep documenation order |
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156 cmd_data.update(self._parseDocString(cmd, cmd_name)) |
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157 log.info(_("Registered text command [%s]") % cmd_name) |
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158 |
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159 def addWhoIsCb(self, callback, priority=0): |
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160 """Add a callback which give information to the /whois command |
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161 |
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162 @param callback: a callback which will be called with the following arguments |
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163 - whois_msg: list of information strings to display, callback need to append its own strings to it |
1199 | 164 - target_jid: full jid from whom we want information |
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165 - profile: %(doc_profile)s |
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166 @param priority: priority of the information to show (the highest priority will be displayed first) |
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167 """ |
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168 self._whois.append((priority, callback)) |
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169 self._whois.sort(key=lambda item: item[0], reverse=True) |
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170 |
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171 def sendMessageTrigger(self, client, mess_data, pre_xml_treatments, post_xml_treatments): |
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172 """Install SendMessage command hook """ |
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173 pre_xml_treatments.addCallback(self._sendMessageCmdHook, client) |
921 | 174 return True |
175 | |
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176 def _sendMessageCmdHook(self, mess_data, client): |
921 | 177 """ Check text commands in message, and react consequently |
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178 |
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179 msg starting with / are potential command. If a command is found, it is executed, else and help message is sent |
921 | 180 msg starting with // are escaped: they are sent with a single / |
181 commands can abord message sending (if they return anything evaluating to False), or continue it (if they return True), eventually after modifying the message | |
182 an "unparsed" key is added to message, containing part of the message not yet parsed | |
183 commands can be deferred or not | |
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184 @param mess_data(dict): data comming from sendMessage trigger |
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185 @param profile: %(doc_profile)s |
921 | 186 """ |
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187 try: |
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188 msg = mess_data["message"][''] |
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189 msg_lang = '' |
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190 except KeyError: |
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191 try: |
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192 # we have not default message, we try to take the first found |
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193 msg_lang, msg = mess_data["message"].iteritems().next() |
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194 except StopIteration: |
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195 log.debug(u"No message found, skipping text commands") |
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196 return mess_data |
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197 |
921 | 198 try: |
199 if msg[:2] == '//': | |
200 # we have a double '/', it's the escape sequence | |
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201 mess_data["message"][msg_lang] = msg[1:] |
921 | 202 return mess_data |
203 if msg[0] != '/': | |
204 return mess_data | |
205 except IndexError: | |
206 return mess_data | |
207 | |
208 # we have a command | |
209 d = None | |
210 command = msg[1:].partition(' ')[0].lower() | |
211 if command.isalpha(): | |
212 # looks like an actual command, we try to call the corresponding method | |
213 def retHandling(ret): | |
214 """ Handle command return value: | |
215 if ret is True, normally send message (possibly modified by command) | |
216 else, abord message sending | |
217 """ | |
218 if ret: | |
219 return mess_data | |
220 else: | |
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221 log.debug(u"text command detected ({})".format(command)) |
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222 raise failure.Failure(exceptions.CancelError()) |
921 | 223 |
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224 def genericErrback(failure): |
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225 try: |
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226 msg = u"with condition {}".format(failure.value.condition) |
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227 except AttributeError: |
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228 msg = u"with error {}".format(failure.value) |
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229 self.feedBack(client, u"Command failed {}".format(msg), mess_data) |
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230 return False |
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231 |
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232 mess_data["unparsed"] = msg[1 + len(command):] # part not yet parsed of the message |
921 | 233 try: |
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234 cmd_data = self._commands[command] |
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235 except KeyError: |
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236 self.feedBack(client, _("Unknown command /%s. ") % command + self.HELP_SUGGESTION, mess_data) |
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237 log.debug("text command help message") |
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238 raise failure.Failure(exceptions.CancelError()) |
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239 else: |
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240 if not self._contextValid(mess_data, cmd_data): |
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241 # The command is not launched in the right context, we throw a message with help instructions |
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242 context_txt = _("group discussions") if cmd_data["type"] == "group" else _("one to one discussions") |
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243 feedback = _("/{command} command only applies in {context}.").format(command=command, context=context_txt) |
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244 self.feedBack(client, u"{} {}".format(feedback, self.HELP_SUGGESTION), mess_data) |
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245 log.debug("text command invalid message") |
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246 raise failure.Failure(exceptions.CancelError()) |
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247 else: |
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248 d = defer.maybeDeferred(cmd_data["callback"], client, mess_data) |
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249 d.addErrback(genericErrback) |
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250 d.addCallback(retHandling) |
921 | 251 |
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252 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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253 |
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254 def _contextValid(self, mess_data, cmd_data): |
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255 """Tell if a command can be used in the given context |
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256 |
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257 @param mess_data(dict): message data as given in sendMessage trigger |
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258 @param cmd_data(dict): command data as returned by self._parseDocString |
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259 @return (bool): True if command can be used in this context |
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260 """ |
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261 if ((cmd_data['type'] == "group" and mess_data["type"] != "groupchat") or |
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262 (cmd_data['type'] == 'one2one' and mess_data["type"] == "groupchat")): |
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263 return False |
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264 return True |
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265 |
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266 def getRoomJID(self, arg, service_jid): |
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267 """Return a room jid with a shortcut |
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268 |
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269 @param arg: argument: can be a full room jid (e.g.: sat@chat.jabberfr.org) |
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270 or a shortcut (e.g.: sat or sat@ for sat on current service) |
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271 @param service_jid: jid of the current service (e.g.: chat.jabberfr.org) |
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272 """ |
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273 nb_arobas = arg.count('@') |
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274 if nb_arobas == 1: |
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275 if arg[-1] != '@': |
508
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276 return jid.JID(arg) |
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277 return jid.JID(arg + service_jid) |
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278 return jid.JID(u"%s@%s" % (arg, service_jid)) |
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279 |
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280 def feedBack(self, client, message, mess_data, info_type=FEEDBACK_INFO_TYPE): |
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281 """Give a message back to the user""" |
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282 if mess_data["type"] == 'groupchat': |
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283 to_ = mess_data["to"].userhostJID() |
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284 else: |
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285 to_ = client.jid |
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286 |
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287 # we need to invert send message back, so sender need to original destinee |
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288 mess_data["from"] = mess_data["to"] |
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289 mess_data["to"] = to_ |
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290 mess_data["type"] = C.MESS_TYPE_INFO |
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291 mess_data["message"] = {'': message} |
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292 mess_data["extra"]["info_type"] = info_type |
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plugins XEP-0033, XEP-0280, text commands: fixed method renaming after client refactoring
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293 client.messageSendToBridge(mess_data) |
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294 |
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295 def cmd_whois(self, client, mess_data): |
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296 """show informations on entity |
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297 |
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298 @command: [JID|ROOM_NICK] |
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299 - JID: entity to request |
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300 - ROOM_NICK: nick of the room to request |
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301 """ |
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302 log.debug("Catched whois command") |
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303 |
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304 entity = mess_data["unparsed"].strip() |
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305 |
600
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306 if mess_data['type'] == "groupchat": |
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307 room = mess_data["to"].userhostJID() |
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308 try: |
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309 if self.host.plugins["XEP-0045"].isNickInRoom(client, room, entity): |
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310 entity = u"%s/%s" % (room, entity) |
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311 except KeyError: |
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312 log.warning("plugin XEP-0045 is not present") |
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313 |
600
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314 if not entity: |
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315 target_jid = mess_data["to"] |
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316 else: |
600
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317 try: |
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318 target_jid = jid.JID(entity) |
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319 if not target_jid.user or not target_jid.host: |
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320 raise jid.InvalidFormat |
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321 except (RuntimeError, jid.InvalidFormat, AttributeError): |
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322 self.feedBack(client, _("Invalid jid, can't whois"), mess_data) |
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323 return False |
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324 |
921 | 325 if not target_jid.resource: |
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326 target_jid.resource = self.host.memory.getMainResource(client, target_jid) |
921 | 327 |
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328 whois_msg = [_(u"whois for %(jid)s") % {'jid': target_jid}] |
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329 |
926
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330 d = defer.succeed(None) |
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331 for ignore, callback in self._whois: |
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332 d.addCallback(lambda ignore: callback(client, whois_msg, mess_data, target_jid)) |
921 | 333 |
334 def feedBack(ignore): | |
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335 self.feedBack(client, u"\n".join(whois_msg), mess_data) |
921 | 336 return False |
337 | |
338 d.addCallback(feedBack) | |
339 return d | |
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340 |
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341 def _getArgsHelp(self, cmd_data): |
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342 """Return help string for args of cmd_name, according to docstring data |
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343 |
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344 @param cmd_data: command data |
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345 @return (list[unicode]): help strings |
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346 """ |
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347 strings = [] |
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348 for doc_name, doc_help in cmd_data.iteritems(): |
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349 if doc_name.startswith("doc_arg_"): |
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350 arg_name = doc_name[8:] |
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351 strings.append(u"- {name}: {doc_help}".format(name=arg_name, doc_help=_(doc_help))) |
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352 |
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353 return strings |
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354 |
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355 def cmd_me(self, client, mess_data): |
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356 """display a message at third person |
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357 |
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358 @command (all): message |
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359 - message: message to show at third person |
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360 e.g.: "/me clenches his fist" will give "[YOUR_NICK] clenches his fist" |
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361 """ |
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362 # We just ignore the command as the match is done on receiption by clients |
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363 return True |
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364 |
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365 def cmd_whoami(self, client, mess_data): |
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366 """give your own jid""" |
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367 self.feedBack(client, client.jid.full(), mess_data) |
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368 |
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369 def cmd_help(self, client, mess_data): |
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370 """show help on available commands |
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371 |
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372 @command: [cmd_name] |
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373 - cmd_name: name of the command for detailed help |
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374 """ |
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375 cmd_name = mess_data["unparsed"].strip() |
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376 if cmd_name and cmd_name[0] == "/": |
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377 cmd_name = cmd_name[1:] |
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378 if cmd_name and cmd_name not in self._commands: |
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379 self.feedBack(client, _(u"Invalid command name [{}]\n".format(cmd_name)), mess_data) |
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380 cmd_name = "" |
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381 if not cmd_name: |
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382 # we show the global help |
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383 longuest = max([len(command) for command in self._commands]) |
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384 help_cmds = [] |
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385 |
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386 for command in sorted(self._commands): |
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387 cmd_data = self._commands[command] |
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388 if not self._contextValid(mess_data, cmd_data): |
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389 continue |
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390 spaces = (longuest - len(command)) * ' ' |
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391 help_cmds.append(" /{command}: {spaces} {short_help}".format( |
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392 command=command, |
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393 spaces=spaces, |
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394 short_help=cmd_data["doc_short_help"] |
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395 )) |
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396 |
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397 help_mess = _(u"Text commands available:\n%s") % (u'\n'.join(help_cmds), ) |
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398 else: |
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399 # we show detailled help for a command |
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400 cmd_data = self._commands[cmd_name] |
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401 syntax = cmd_data["args"] |
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402 help_mess = _(u"/{name}: {short_help}\n{syntax}{args_help}").format( |
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403 name=cmd_name, |
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404 short_help=cmd_data['doc_short_help'], |
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405 syntax=_(" "*4+"syntax: {}\n").format(syntax) if syntax else "", |
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406 args_help=u'\n'.join([u" "*8+"{}".format(line) for line in self._getArgsHelp(cmd_data)])) |
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407 |
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408 self.feedBack(client, help_mess, mess_data) |