227 lines
		
	
	
	
		
			8.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			227 lines
		
	
	
	
		
			8.5 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
<?php
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/**
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 * @file include/Smilies.php
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 * @brief This file contains the Smilies class which contains functions to handle smiles
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 *
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 * @todo Use the shortcodes from here:
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 * https://github.com/iamcal/emoji-data/blob/master/emoji_pretty.json?raw=true
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 * https://raw.githubusercontent.com/emojione/emojione/master/extras/alpha-codes/eac.json?raw=true
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 * https://github.com/johannhof/emoji-helper/blob/master/data/emoji.json?raw=true
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 *
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 * Have also a look here:
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 * https://www.webpagefx.com/tools/emoji-cheat-sheet/
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 */
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use Friendica\App;
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use Friendica\Core\Config;
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use Friendica\Core\PConfig;
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use Friendica\Core\System;
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/**
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 * This class contains functions to handle smiles
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 */
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class Smilies {
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	/**
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	 * @brief Replaces/adds the emoticon list
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	 *
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	 * This function should be used whenever emoticons are added
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	 *
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	 * @param array $b Array of emoticons
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	 * @param string $smiley The text smilie
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	 * @param string $representation The replacement
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	 */
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	public static function add(&$b, $smiley, $representation) {
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		$found = array_search($smiley, $b['texts']);
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		if (!is_int($found)) {
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			$b['texts'][] = $smiley;
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			$b['icons'][] = $representation;
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		} else {
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			$b['icons'][$found] = $representation;
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		}
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	}
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	/**
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	 * @brief Function to list all smilies
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	 *
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	 * Get an array of all smilies, both internal and from addons.
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	 *
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	 * @return array
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	 *	'texts' => smilie shortcut
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	 *	'icons' => icon in html
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	 *
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	 * @hook smilie ('texts' => smilies texts array, 'icons' => smilies html array)
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	 */
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	public static function get_list() {
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		$texts =  array(
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			'<3',
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			'</3',
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			'<\\3',
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			':-)',
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			';-)',
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			':-(',
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			':-P',
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			':-p',
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			':-"',
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			':-"',
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			':-x',
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			':-X',
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			':-D',
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			'8-|',
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			'8-O',
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			':-O',
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			'\\o/',
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			'o.O',
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			'O.o',
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			'o_O',
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			'O_o',
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			":'(",
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			":-!",
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			":-/",
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			":-[",
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			"8-)",
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			':beer',
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			':homebrew',
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			':coffee',
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			':facepalm',
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			':like',
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			':dislike',
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			'~friendica',
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			'red#',
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			'red#matrix'
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		);
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		$icons = array(
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-heart.gif" alt="<3" title="<3" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-brokenheart.gif" alt="</3" title="</3" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-brokenheart.gif" alt="<\\3" title="<\\3" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-smile.gif" alt=":-)" title=":-)" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-wink.gif" alt=";-)" title=";-)" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-frown.gif" alt=":-(" title=":-(" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-tongue-out.gif" alt=":-P" title=":-P" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-tongue-out.gif" alt=":-p" title=":-P" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-kiss.gif" alt=":-\" title=":-\" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-kiss.gif" alt=":-\" title=":-\" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-kiss.gif" alt=":-x" title=":-x" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-kiss.gif" alt=":-X" title=":-X" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-laughing.gif" alt=":-D" title=":-D"  />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-surprised.gif" alt="8-|" title="8-|" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-surprised.gif" alt="8-O" title="8-O" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-surprised.gif" alt=":-O" title="8-O" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-thumbsup.gif" alt="\\o/" title="\\o/" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-Oo.gif" alt="o.O" title="o.O" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-Oo.gif" alt="O.o" title="O.o" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-Oo.gif" alt="o_O" title="o_O" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-Oo.gif" alt="O_o" title="O_o" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-cry.gif" alt=":\'(" title=":\'("/>',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-foot-in-mouth.gif" alt=":-!" title=":-!" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-undecided.gif" alt=":-/" title=":-/" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-embarassed.gif" alt=":-[" title=":-[" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-cool.gif" alt="8-)" title="8-)" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/beer_mug.gif" alt=":beer" title=":beer" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/beer_mug.gif" alt=":homebrew" title=":homebrew" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/coffee.gif" alt=":coffee" title=":coffee" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/smiley-facepalm.gif" alt=":facepalm" title=":facepalm" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/like.gif" alt=":like" title=":like" />',
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		'<img class="smiley" src="' . System::baseUrl() . '/images/dislike.gif" alt=":dislike" title=":dislike" />',
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		'<a href="https://friendi.ca">~friendica <img class="smiley" src="' . System::baseUrl() . '/images/friendica-16.png" alt="~friendica" title="~friendica" /></a>',
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		'<a href="http://redmatrix.me/">red<img class="smiley" src="' . System::baseUrl() . '/images/rm-16.png" alt="red#" title="red#" />matrix</a>',
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		'<a href="http://redmatrix.me/">red<img class="smiley" src="' . System::baseUrl() . '/images/rm-16.png" alt="red#matrix" title="red#matrix" />matrix</a>'
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		);
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		$params = array('texts' => $texts, 'icons' => $icons);
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		call_hooks('smilie', $params);
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		return $params;
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	}
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	/**
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	 * @brief Replaces text emoticons with graphical images
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	 *
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	 * It is expected that this function will be called using HTML text.
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	 * We will escape text between HTML pre and code blocks from being
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	 * processed.
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	 *
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	 * At a higher level, the bbcode [nosmile] tag can be used to prevent this
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	 * function from being executed by the prepare_text() routine when preparing
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	 * bbcode source for HTML display
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	 *
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	 * @param string $s Text that should be replaced
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	 * @param boolean $sample
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	 * @param boolean $no_images Only replace emoticons without images
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	 *
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	 * @return string HML Output of the Smilie
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	 */
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	public static function replace($s, $sample = false, $no_images = false) {
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		if(intval(Config::get('system','no_smilies'))
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			|| (local_user() && intval(PConfig::get(local_user(),'system','no_smilies'))))
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			return $s;
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		$s = preg_replace_callback('/<pre>(.*?)<\/pre>/ism','self::encode',$s);
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		$s = preg_replace_callback('/<code>(.*?)<\/code>/ism','self::encode',$s);
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		$params = self::get_list();
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		if ($no_images) {
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			$cleaned = array('texts' => array(), 'icons' => array());
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			$icons = $params['icons'];
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			foreach ($icons AS $key => $icon) {
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				if (!strstr($icon, '<img ')) {
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					$cleaned['texts'][] = $params['texts'][$key];
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					$cleaned['icons'][] = $params['icons'][$key];
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				}
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			}
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			$params = $cleaned;
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		}
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		$params['string'] = $s;
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		if($sample) {
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			$s = '<div class="smiley-sample">';
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			for($x = 0; $x < count($params['texts']); $x ++) {
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				$s .= '<dl><dt>' . $params['texts'][$x] . '</dt><dd>' . $params['icons'][$x] . '</dd></dl>';
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			}
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		}
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		else {
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			$params['string'] = preg_replace_callback('/<(3+)/','self::preg_heart',$params['string']);
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			$s = str_replace($params['texts'],$params['icons'],$params['string']);
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		}
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		$s = preg_replace_callback('/<pre>(.*?)<\/pre>/ism','self::decode',$s);
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		$s = preg_replace_callback('/<code>(.*?)<\/code>/ism','self::decode',$s);
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		return $s;
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	}
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	private static function encode($m) {
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		return(str_replace($m[1],base64url_encode($m[1]),$m[0]));
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	}
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	private static function decode($m) {
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		return(str_replace($m[1],base64url_decode($m[1]),$m[0]));
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	}
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	/**
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	 * @brief expand <3333 to the correct number of hearts
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	 *
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	 * @param string $x
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	 * @return string HTML Output
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	 *
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	 * @todo: Rework because it doesn't work correctly
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	 */
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	private static function preg_heart($x) {
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		if(strlen($x[1]) == 1)
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			return $x[0];
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		$t = '';
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		for($cnt = 0; $cnt < strlen($x[1]); $cnt ++)
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			$t .= '<img class="smiley" src="' . System::baseUrl() . '/images/smiley-heart.gif" alt="<3" />';
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		$r =  str_replace($x[0],$t,$x[0]);
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		return $r;
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	}
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}
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