mirror of
https://github.com/wbbaddons/Tims-Chat.git
synced 2024-11-01 14:20:07 +00:00
8fe56d9e01
It provides better error messages for the user
120 lines
2.6 KiB
PHP
120 lines
2.6 KiB
PHP
<?php
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namespace chat\system\command;
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use \wcf\util\StringUtil;
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/**
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* Handles commands
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*
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* @author Tim Düsterhus
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* @copyright 2010-2013 Tim Düsterhus
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* @license Creative Commons Attribution-NonCommercial-ShareAlike <http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode>
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* @package be.bastelstu.chat
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* @subpackage system.chat.command
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*/
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final class CommandHandler {
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/**
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* char that indicates a command
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* @var string
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*/
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const COMMAND_CHAR = '/';
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/**
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* message text
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* @var string
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*/
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private $text = '';
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/**
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* current room
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* @var \chat\data\room\Room
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*/
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private $room = null;
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/**
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* Initialises the CommandHandler
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*
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* @param string $text
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* @param \chat\data\room\Room $room
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*/
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public function __construct($text, \chat\data\room\Room $room = null) {
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$this->text = $text;
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$this->room = $room;
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$aliases = self::getAliasMap();
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foreach ($aliases as $search => $replace) {
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$this->text = \wcf\system\Regex::compile('^'.preg_quote(self::COMMAND_CHAR.$search).'( |$)')->replace($this->text, self::COMMAND_CHAR.$replace.' ');
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}
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$this->text = \wcf\system\Regex::compile('^//')->replace($this->text, '/plain ');
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}
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/**
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* Returns the alias map. Key is the alias, value is the target.
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*
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* @return array<string>
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*/
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public static function getAliasMap() {
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$result = array();
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foreach (explode("\n", StringUtil::unifyNewlines(StringUtil::toLowerCase(CHAT_COMMAND_ALIASES))) as $line) {
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list($key, $val) = explode(':', $line, 2);
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$result[$key] = $val;
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}
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return $result;
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}
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/**
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* Checks whether the given text is a command.
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*/
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public function isCommand($text = null) {
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if ($text === null) $text = $this->text;
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return StringUtil::startsWith($text, static::COMMAND_CHAR);
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}
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/**
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* Returns the whole message.
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*
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* @return string
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*/
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public function getText() {
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return $this->text;
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}
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/**
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* Returns the current room.
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*
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* @return \chat\data\room\Room
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*/
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public function getRoom() {
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return $this->room;
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}
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/**
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* Returns the parameter-string.
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*
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* @return string
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*/
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public function getParameters() {
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$parts = explode(' ', StringUtil::substring($this->text, StringUtil::length(static::COMMAND_CHAR)), 2);
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if (!isset($parts[1])) return '';
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return $parts[1];
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}
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/**
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* Loads the command.
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*/
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public function loadCommand() {
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$parts = explode(' ', StringUtil::substring($this->text, StringUtil::length(static::COMMAND_CHAR)), 2);
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$class = '\chat\system\command\commands\\'.ucfirst(strtolower($parts[0])).'Command';
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if (!class_exists($class)) {
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throw new NotFoundException($parts[0]);
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}
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return new $class($this);
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}
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}
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