Mercurial > libervia-backend
annotate libervia/backend/plugins/plugin_misc_text_commands.py @ 4335:430d5d99a740
plugin XEP-0358: "Publishing Available Jingle Sessions" implementation:
rel 453
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Tue, 03 Dec 2024 00:13:07 +0100 |
| parents | 0d7bb4df2343 |
| children |
| rev | line source |
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| 3028 | 1 #!/usr/bin/env python3 |
| 3137 | 2 |
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3 |
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4 # SàT plugin for managing text commands |
| 3479 | 5 # Copyright (C) 2009-2021 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 |
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20 from twisted.words.protocols.jabber import jid |
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21 from twisted.internet import defer |
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22 from twisted.python import failure |
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23 from libervia.backend.core.i18n import _ |
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24 from libervia.backend.core.constants import Const as C |
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25 from libervia.backend.core import exceptions |
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26 from libervia.backend.core.log import getLogger |
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27 from libervia.backend.tools import utils |
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28 |
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29 |
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30 log = getLogger(__name__) |
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31 |
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32 PLUGIN_INFO = { |
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33 C.PI_NAME: "Text commands", |
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34 C.PI_IMPORT_NAME: C.TEXT_CMDS, |
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35 C.PI_TYPE: "Misc", |
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36 C.PI_PROTOCOLS: ["XEP-0245"], |
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37 C.PI_DEPENDENCIES: [], |
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38 C.PI_MAIN: "TextCommands", |
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39 C.PI_HANDLER: "no", |
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40 C.PI_DESCRIPTION: _("""IRC like text commands"""), |
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41 } |
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42 |
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43 |
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44 class InvalidCommandSyntax(Exception): |
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45 """Throwed while parsing @command in docstring if syntax is invalid""" |
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46 |
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47 pass |
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48 |
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49 |
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50 CMD_KEY = "@command" |
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51 CMD_TYPES = ("group", "one2one", "all") |
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52 FEEDBACK_INFO_TYPE = "TEXT_CMD" |
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53 |
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54 |
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55 class TextCommands(object): |
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56 # FIXME: doc strings for commands have to be translatable |
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57 # plugins need a dynamic translation system (translation |
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58 # should be downloadable independently) |
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59 |
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60 HELP_SUGGESTION = _( |
| 3028 | 61 "Type '/help' to get a list of the available commands. If you didn't want to " |
| 62 "use a command, please start your message with '//' to escape the slash." | |
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63 ) |
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64 |
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65 def __init__(self, host): |
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66 log.info(_("Text commands initialization")) |
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67 self.host = host |
| 2128 | 68 # this is internal command, so we set high priority |
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69 host.trigger.add("sendMessage", self.send_message_trigger, priority=1000000) |
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70 self._commands = {} |
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71 self._whois = [] |
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72 self.register_text_commands(self) |
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73 |
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74 def _parse_doc_string(self, cmd, cmd_name): |
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75 """Parse a docstring to get text command data |
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76 |
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77 @param cmd: function or method callback for the command, |
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78 its docstring will be used for self documentation in the following way: |
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79 - first line is the command short documentation, shown with /help |
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81 see http://wiki.goffi.org/wiki/Coding_style/en for documentation |
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82 @return (dict): dictionary with parsed data where key can be: |
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83 - "doc_short_help" (default: ""): the untranslated short documentation |
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84 - "type" (default "all"): the command type as specified in documentation |
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85 - "args" (default: ""): the arguments available, using syntax specified in |
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86 documentation. |
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87 - "doc_arg_[name]": the doc of [name] argument |
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88 """ |
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89 data = { |
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90 "doc_short_help": "", |
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91 "type": "all", |
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92 "args": "", |
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93 } |
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94 docstring = cmd.__doc__ |
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95 if docstring is None: |
| 3028 | 96 log.warning("No docstring found for command {}".format(cmd_name)) |
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97 docstring = "" |
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98 |
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99 doc_data = docstring.split("\n") |
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100 data["doc_short_help"] = doc_data[0] |
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101 |
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102 try: |
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103 cmd_indent = 0 # >0 when @command is found are we are parsing it |
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104 |
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105 for line in doc_data: |
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106 stripped = line.strip() |
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107 if cmd_indent and line[cmd_indent : cmd_indent + 5] == " -": |
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108 colon_idx = line.find(":") |
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109 if colon_idx == -1: |
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110 raise InvalidCommandSyntax( |
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111 "No colon found in argument description" |
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112 ) |
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113 arg_name = line[cmd_indent + 6 : colon_idx].strip() |
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114 if not arg_name: |
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115 raise InvalidCommandSyntax( |
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116 "No name found in argument description" |
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117 ) |
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118 arg_help = line[colon_idx + 1 :].strip() |
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119 data["doc_arg_{}".format(arg_name)] = arg_help |
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120 elif cmd_indent: |
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121 # we are parsing command and indent level is not good, it's finished |
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122 break |
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123 elif stripped.startswith(CMD_KEY): |
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124 cmd_indent = line.find(CMD_KEY) |
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125 |
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126 # type |
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127 colon_idx = stripped.find(":") |
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128 if colon_idx == -1: |
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129 raise InvalidCommandSyntax("missing colon") |
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130 type_data = stripped[len(CMD_KEY) : colon_idx].strip() |
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131 if len(type_data) == 0: |
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132 type_data = "(all)" |
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133 elif ( |
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134 len(type_data) <= 2 or type_data[0] != "(" or type_data[-1] != ")" |
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135 ): |
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136 raise InvalidCommandSyntax("Bad type data syntax") |
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137 type_ = type_data[1:-1] |
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138 if type_ not in CMD_TYPES: |
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139 raise InvalidCommandSyntax("Unknown type {}".format(type_)) |
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140 data["type"] = type_ |
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141 |
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142 # args |
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143 data["args"] = stripped[colon_idx + 1 :].strip() |
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144 except InvalidCommandSyntax as e: |
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145 log.warning( |
| 3028 | 146 "Invalid command syntax for command {command}: {message}".format( |
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147 command=cmd_name, message=e.message |
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148 ) |
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149 ) |
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150 |
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151 return data |
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152 |
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153 def register_text_commands(self, instance): |
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154 """Add a text command |
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155 |
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156 @param instance: instance of a class containing text commands |
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157 """ |
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158 for attr in dir(instance): |
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159 if attr.startswith("cmd_"): |
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160 cmd = getattr(instance, attr) |
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161 if not callable(cmd): |
| 3028 | 162 log.warning(_("Skipping not callable [%s] attribute") % attr) |
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163 continue |
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164 cmd_name = attr[4:] |
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165 if not cmd_name: |
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166 log.warning(_("Skipping cmd_ method")) |
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167 if cmd_name in self._commands: |
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168 suff = 2 |
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169 while (cmd_name + str(suff)) in self._commands: |
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170 suff += 1 |
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171 new_name = cmd_name + str(suff) |
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172 log.warning( |
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173 _( |
| 3028 | 174 "Conflict for command [{old_name}], renaming it to [{new_name}]" |
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175 ).format(old_name=cmd_name, new_name=new_name) |
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176 ) |
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177 cmd_name = new_name |
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178 self._commands[cmd_name] = cmd_data = {"callback": cmd} |
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179 cmd_data.update(self._parse_doc_string(cmd, cmd_name)) |
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180 log.info(_("Registered text command [%s]") % cmd_name) |
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181 |
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182 def add_who_is_cb(self, callback, priority=0): |
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183 """Add a callback which give information to the /whois command |
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184 |
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185 @param callback: a callback which will be called with the following arguments |
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186 - whois_msg: list of information strings to display, callback need to append |
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187 its own strings to it |
| 1199 | 188 - target_jid: full jid from whom we want information |
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189 - profile: %(doc_profile)s |
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190 @param priority: priority of the information to show (the highest priority will |
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191 be displayed first) |
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192 """ |
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193 self._whois.append((priority, callback)) |
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194 self._whois.sort(key=lambda item: item[0], reverse=True) |
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195 |
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196 def send_message_trigger( |
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197 self, client, mess_data, pre_xml_treatments, post_xml_treatments |
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198 ): |
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199 """Install SendMessage command hook""" |
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200 pre_xml_treatments.addCallback(self._send_message_cmd_hook, client) |
| 921 | 201 return True |
| 202 | |
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203 def _send_message_cmd_hook(self, mess_data, client): |
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204 """Check text commands in message, and react consequently |
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205 |
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206 msg starting with / are potential command. If a command is found, it is executed, |
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207 else an help message is sent. |
| 921 | 208 msg starting with // are escaped: they are sent with a single / |
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209 commands can abord message sending (if they return anything evaluating to False), |
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210 or continue it (if they return True), eventually after modifying the message |
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211 an "unparsed" key is added to message, containing part of the message not yet |
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212 parsed. |
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213 Commands can be deferred or not |
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214 @param mess_data(dict): data comming from sendMessage trigger |
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215 @param profile: %(doc_profile)s |
| 921 | 216 """ |
|
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217 try: |
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218 msg = mess_data["message"][""] |
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219 msg_lang = "" |
|
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220 except KeyError: |
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221 try: |
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222 # we have not default message, we try to take the first found |
| 3028 | 223 msg_lang, msg = next(iter(mess_data["message"].items())) |
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224 except StopIteration: |
| 3028 | 225 log.debug("No message found, skipping text commands") |
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226 return mess_data |
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227 |
| 921 | 228 try: |
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229 if msg[:2] == "//": |
| 921 | 230 # we have a double '/', it's the escape sequence |
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231 mess_data["message"][msg_lang] = msg[1:] |
| 921 | 232 return mess_data |
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233 if msg[0] != "/": |
| 921 | 234 return mess_data |
| 235 except IndexError: | |
| 236 return mess_data | |
| 237 | |
| 238 # we have a command | |
| 239 d = None | |
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240 command = msg[1:].partition(" ")[0].lower().strip() |
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241 if not command.isidentifier(): |
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242 self.feed_back( |
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243 client, |
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244 _("Invalid command /%s. ") % command + self.HELP_SUGGESTION, |
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245 mess_data, |
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246 ) |
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247 raise failure.Failure(exceptions.CancelError()) |
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248 |
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249 # looks like an actual command, we try to call the corresponding method |
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250 def ret_handling(ret): |
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251 """Handle command return value: |
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252 if ret is True, normally send message (possibly modified by command) |
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253 else, abord message sending |
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254 """ |
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255 if ret: |
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256 return mess_data |
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257 else: |
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258 log.debug("text command detected ({})".format(command)) |
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259 raise failure.Failure(exceptions.CancelError()) |
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260 |
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261 def generic_errback(failure): |
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262 try: |
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263 msg = "with condition {}".format(failure.value.condition) |
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264 except AttributeError: |
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265 msg = "with error {}".format(failure.value) |
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266 self.feed_back(client, "Command failed {}".format(msg), mess_data) |
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267 return False |
| 921 | 268 |
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269 mess_data["unparsed"] = msg[ |
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270 1 + len(command) : |
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271 ] # part not yet parsed of the message |
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272 try: |
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273 cmd_data = self._commands[command] |
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274 except KeyError: |
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275 self.feed_back( |
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276 client, |
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277 _("Unknown command /%s. ") % command + self.HELP_SUGGESTION, |
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278 mess_data, |
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279 ) |
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280 log.debug("text command help message") |
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281 raise failure.Failure(exceptions.CancelError()) |
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282 else: |
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283 if not self._context_valid(mess_data, cmd_data): |
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284 # The command is not launched in the right context, we throw a message with help instructions |
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285 context_txt = ( |
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286 _("group discussions") |
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287 if cmd_data["type"] == "group" |
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288 else _("one to one discussions") |
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289 ) |
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290 feedback = _("/{command} command only applies in {context}.").format( |
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291 command=command, context=context_txt |
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292 ) |
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293 self.feed_back( |
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294 client, "{} {}".format(feedback, self.HELP_SUGGESTION), mess_data |
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295 ) |
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296 log.debug("text command invalid message") |
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297 raise failure.Failure(exceptions.CancelError()) |
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298 else: |
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299 d = utils.as_deferred(cmd_data["callback"], client, mess_data) |
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300 d.addErrback(generic_errback) |
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301 d.addCallback(ret_handling) |
| 921 | 302 |
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303 return d |
|
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304 |
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305 def _context_valid(self, mess_data, cmd_data): |
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306 """Tell if a command can be used in the given context |
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307 |
|
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308 @param mess_data(dict): message data as given in sendMessage trigger |
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309 @param cmd_data(dict): command data as returned by self._parse_doc_string |
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310 @return (bool): True if command can be used in this context |
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311 """ |
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312 if (cmd_data["type"] == "group" and mess_data["type"] != "groupchat") or ( |
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313 cmd_data["type"] == "one2one" and mess_data["type"] == "groupchat" |
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314 ): |
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315 return False |
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316 return True |
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317 |
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318 def get_room_jid(self, arg, service_jid): |
|
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319 """Return a room jid with a shortcut |
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320 |
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321 @param arg: argument: can be a full room jid (e.g.: sat@chat.jabberfr.org) |
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322 or a shortcut (e.g.: sat or sat@ for sat on current service) |
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323 @param service_jid: jid of the current service (e.g.: chat.jabberfr.org) |
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324 """ |
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325 nb_arobas = arg.count("@") |
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326 if nb_arobas == 1: |
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327 if arg[-1] != "@": |
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328 return jid.JID(arg) |
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329 return jid.JID(arg + service_jid) |
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330 return jid.JID(f"{arg}@{service_jid}") |
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331 |
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332 def feed_back(self, client, message, mess_data, info_type=FEEDBACK_INFO_TYPE): |
|
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333 """Give a message back to the user""" |
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334 if mess_data["type"] == "groupchat": |
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335 to_ = mess_data["to"].userhostJID() |
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336 else: |
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337 to_ = client.jid |
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338 |
|
1963
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339 # we need to invert send message back, so sender need to original destinee |
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340 mess_data["from"] = mess_data["to"] |
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341 mess_data["to"] = to_ |
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342 mess_data["type"] = C.MESS_TYPE_INFO |
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343 mess_data["message"] = {"": message} |
|
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344 mess_data["extra"]["info_type"] = info_type |
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345 client.message_send_to_bridge(mess_data) |
|
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346 |
|
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347 def cmd_whois(self, client, mess_data): |
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348 """show informations on entity |
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349 |
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350 @command: [JID|ROOM_NICK] |
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351 - JID: entity to request |
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352 - ROOM_NICK: nick of the room to request |
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353 """ |
|
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354 log.debug("Catched whois command") |
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355 |
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356 entity = mess_data["unparsed"].strip() |
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357 |
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358 if mess_data["type"] == "groupchat": |
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359 room = mess_data["to"].userhostJID() |
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360 try: |
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361 if self.host.plugins["XEP-0045"].is_nick_in_room(client, room, entity): |
| 3028 | 362 entity = "%s/%s" % (room, entity) |
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363 except KeyError: |
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364 log.warning("plugin XEP-0045 is not present") |
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365 |
|
600
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366 if not entity: |
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367 target_jid = mess_data["to"] |
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368 else: |
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369 try: |
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370 target_jid = jid.JID(entity) |
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371 if not target_jid.user or not target_jid.host: |
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372 raise jid.InvalidFormat |
|
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373 except (RuntimeError, jid.InvalidFormat, AttributeError): |
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374 self.feed_back(client, _("Invalid jid, can't whois"), mess_data) |
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375 return False |
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376 |
| 921 | 377 if not target_jid.resource: |
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378 target_jid.resource = self.host.memory.main_resource_get(client, target_jid) |
| 921 | 379 |
| 3028 | 380 whois_msg = [_("whois for %(jid)s") % {"jid": target_jid}] |
|
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381 |
|
926
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382 d = defer.succeed(None) |
|
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383 for __, callback in self._whois: |
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384 d.addCallback(lambda __: callback(client, whois_msg, mess_data, target_jid)) |
| 921 | 385 |
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|
386 def feed_back(__): |
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387 self.feed_back(client, "\n".join(whois_msg), mess_data) |
| 921 | 388 return False |
| 389 | |
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|
390 d.addCallback(feed_back) |
| 921 | 391 return d |
|
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392 |
|
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|
393 def _get_args_help(self, cmd_data): |
|
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394 """Return help string for args of cmd_name, according to docstring data |
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395 |
|
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|
396 @param cmd_data: command data |
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|
397 @return (list[unicode]): help strings |
|
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|
398 """ |
|
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changeset
|
399 strings = [] |
| 3028 | 400 for doc_name, doc_help in cmd_data.items(): |
|
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|
401 if doc_name.startswith("doc_arg_"): |
|
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|
402 arg_name = doc_name[8:] |
|
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|
403 strings.append( |
| 3028 | 404 "- {name}: {doc_help}".format(name=arg_name, doc_help=_(doc_help)) |
|
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|
405 ) |
|
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changeset
|
406 |
|
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changeset
|
407 return strings |
|
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|
408 |
|
2055
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Goffi <goffi@goffi.org>
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changeset
|
409 def cmd_me(self, client, mess_data): |
|
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changeset
|
410 """display a message at third person |
|
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changeset
|
411 |
|
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diff
changeset
|
412 @command (all): message |
|
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diff
changeset
|
413 - message: message to show at third person |
|
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parents:
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diff
changeset
|
414 e.g.: "/me clenches his fist" will give "[YOUR_NICK] clenches his fist" |
|
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changeset
|
415 """ |
|
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diff
changeset
|
416 # We just ignore the command as the match is done on receiption by clients |
|
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|
417 return True |
|
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|
418 |
|
2111
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plugin text commands: added /whoami command which return current full jid
Goffi <goffi@goffi.org>
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diff
changeset
|
419 def cmd_whoami(self, client, mess_data): |
|
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|
420 """give your own jid""" |
|
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|
421 self.feed_back(client, client.jid.full(), mess_data) |
|
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|
422 |
|
1963
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|
423 def cmd_help(self, client, mess_data): |
|
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|
424 """show help on available commands |
|
587
952322b1d490
Remove trailing whitespaces.
Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
parents:
572
diff
changeset
|
425 |
|
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|
426 @command: [cmd_name] |
|
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|
427 - cmd_name: name of the command for detailed help |
|
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|
428 """ |
|
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changeset
|
429 cmd_name = mess_data["unparsed"].strip() |
|
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|
430 if cmd_name and cmd_name[0] == "/": |
|
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changeset
|
431 cmd_name = cmd_name[1:] |
|
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|
432 if cmd_name and cmd_name not in self._commands: |
|
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changeset
|
433 self.feed_back( |
| 3028 | 434 client, _("Invalid command name [{}]\n".format(cmd_name)), mess_data |
|
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|
435 ) |
|
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|
436 cmd_name = "" |
|
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|
437 if not cmd_name: |
|
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changeset
|
438 # we show the global help |
|
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Goffi <goffi@goffi.org>
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changeset
|
439 longuest = max([len(command) for command in self._commands]) |
|
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changeset
|
440 help_cmds = [] |
|
517
59b32c04e105
plugin text commands: added /help command
Goffi <goffi@goffi.org>
parents:
515
diff
changeset
|
441 |
|
1369
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Goffi <goffi@goffi.org>
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changeset
|
442 for command in sorted(self._commands): |
|
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Goffi <goffi@goffi.org>
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changeset
|
443 cmd_data = self._commands[command] |
|
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diff
changeset
|
444 if not self._context_valid(mess_data, cmd_data): |
|
1370
53c7678c27a6
plugin text commands: added _contextValid method:
Goffi <goffi@goffi.org>
parents:
1369
diff
changeset
|
445 continue |
|
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|
446 spaces = (longuest - len(command)) * " " |
|
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|
447 help_cmds.append( |
|
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Goffi <goffi@goffi.org>
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changeset
|
448 " /{command}: {spaces} {short_help}".format( |
|
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Goffi <goffi@goffi.org>
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|
449 command=command, |
|
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|
450 spaces=spaces, |
|
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changeset
|
451 short_help=cmd_data["doc_short_help"], |
|
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|
452 ) |
|
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Goffi <goffi@goffi.org>
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changeset
|
453 ) |
|
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changeset
|
454 |
| 3028 | 455 help_mess = _("Text commands available:\n%s") % ("\n".join(help_cmds),) |
|
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|
456 else: |
|
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plugin text commands: docstring parsing for commands, and better /help command:
Goffi <goffi@goffi.org>
parents:
1290
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457 # we show detailled help for a command |
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dd1a148bd3d8
plugin text commands: docstring parsing for commands, and better /help command:
Goffi <goffi@goffi.org>
parents:
1290
diff
changeset
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458 cmd_data = self._commands[cmd_name] |
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dd1a148bd3d8
plugin text commands: docstring parsing for commands, and better /help command:
Goffi <goffi@goffi.org>
parents:
1290
diff
changeset
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459 syntax = cmd_data["args"] |
| 3028 | 460 help_mess = _("/{name}: {short_help}\n{syntax}{args_help}").format( |
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dd1a148bd3d8
plugin text commands: docstring parsing for commands, and better /help command:
Goffi <goffi@goffi.org>
parents:
1290
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461 name=cmd_name, |
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code style reformatting using black
Goffi <goffi@goffi.org>
parents:
2562
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462 short_help=cmd_data["doc_short_help"], |
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code style reformatting using black
Goffi <goffi@goffi.org>
parents:
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463 syntax=_(" " * 4 + "syntax: {}\n").format(syntax) if syntax else "", |
| 3028 | 464 args_help="\n".join( |
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Goffi <goffi@goffi.org>
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465 [ |
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parents:
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466 " " * 8 + "{}".format(line) |
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parents:
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467 for line in self._get_args_help(cmd_data) |
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Goffi <goffi@goffi.org>
parents:
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468 ] |
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code style reformatting using black
Goffi <goffi@goffi.org>
parents:
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469 ), |
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code style reformatting using black
Goffi <goffi@goffi.org>
parents:
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changeset
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470 ) |
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plugin text commands: docstring parsing for commands, and better /help command:
Goffi <goffi@goffi.org>
parents:
1290
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471 |
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massive refactoring to switch from camelCase to snake_case:
Goffi <goffi@goffi.org>
parents:
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472 self.feed_back(client, help_mess, mess_data) |