397 lines
12 KiB
PHP
397 lines
12 KiB
PHP
<?php
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/**
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* [Discuz!] (C)2001-2099 Comsenz Inc.
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* This is NOT a freeware, use is subject to license terms
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*
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* $Id: editor.func.php 10469 2010-05-11 09:12:14Z monkey $
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*/
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function absoluteurl($url) {
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global $_G;
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if($url{0} == '/') {
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return 'http://'.$_SERVER['HTTP_HOST'].$url;
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} else {
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return $_G['siteurl'].$url;
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}
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}
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function atag($aoptions, $text) {
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$href = getoptionvalue('href', $aoptions);
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if(substr($href, 0, 7) == 'mailto:') {
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$tag = 'email';
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$href = substr($href, 7);
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} else {
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$tag = 'url';
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if(!preg_match("/^[a-z0-9]+:/i", $href)) {
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$href = absoluteurl($href);
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}
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}
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return "[$tag=$href]".trim(recursion('a', $text, 'atag'))."[/$tag]";
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}
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function divtag($divoptions, $text) {
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$prepend = $append = '';
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parsestyle($divoptions, $prepend, $append);
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$align = getoptionvalue('align', $divoptions);
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switch($align) {
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case 'left':
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case 'center':
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case 'right':
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break;
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default:
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$align = '';
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}
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if($align) {
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$prepend .= "[align=$align]";
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$append .= "[/align]";
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}
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$append .= "\n";
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return $prepend.recursion('div', $text, 'divtag').$append;
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}
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function fetchoptionvalue($option, $text) {
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if(($position = strpos($text, $option)) !== false) {
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$delimiter = $position + strlen($option);
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if($text{$delimiter} == '"') {
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$delimchar = '"';
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} elseif($text{$delimiter} == '\'') {
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$delimchar = '\'';
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} else {
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$delimchar = ' ';
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}
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$delimloc = strpos($text, $delimchar, $delimiter + 1);
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if($delimloc === false) {
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$delimloc = strlen($text);
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} elseif($delimchar == '"' OR $delimchar == '\'') {
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$delimiter++;
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}
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return trim(substr($text, $delimiter, $delimloc - $delimiter));
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} else {
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return '';
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}
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}
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function fonttag($fontoptions, $text) {
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$tags = array('font' => 'face=', 'size' => 'size=', 'color' => 'color=');
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$prependtags = $appendtags = '';
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foreach($tags as $bbcode => $locate) {
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$optionvalue = fetchoptionvalue($locate, $fontoptions);
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if($optionvalue) {
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$prependtags .= "[$bbcode=$optionvalue]";
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$appendtags = "[/$bbcode]$appendtags";
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}
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}
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parsestyle($fontoptions, $prependtags, $appendtags);
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return $prependtags.recursion('font', $text, 'fonttag').$appendtags;
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}
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function getoptionvalue($option, $text) {
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preg_match("/$option(\s+?)?\=(\s+?)?[\"']?(.+?)([\"']|$|>)/is", $text, $matches);
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return isset($matches[3]) ? trim($matches[3]) : '';
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}
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function html2bbcode($text) {
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$text = strip_tags($text, '<table><tr><td><b><strong><i><em><u><a><div><span><p><strike><blockquote><ol><ul><li><font><img><br><br/><h1><h2><h3><h4><h5><h6><script>');
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if(ismozilla()) {
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$text = preg_replace("/(?<!<br>|<br \/>|\r)(\r\n|\n|\r)/", ' ', $text);
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}
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$pregfind = array(
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"/<script.*>.*<\/script>/siU",
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'/on(mousewheel|mouseover|click|load|onload|submit|focus|blur)="[^"]*"/i',
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"/(\r\n|\n|\r)/",
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"/<table([^>]*(width|background|background-color|bgcolor)[^>]*)>/siUe",
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"/<table.*>/siU",
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"/<tr.*>/siU",
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"/<td>/i",
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"/<td(.+)>/siUe",
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"/<\/td>/i",
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"/<\/tr>/i",
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"/<\/table>/i",
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'/<h([0-9]+)[^>]*>(.*)<\/h\\1>/siU',
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"/<img[^>]+smilieid=\"(\d+)\".*>/esiU",
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"/<img([^>]*src[^>]*)>/eiU",
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"/<a\s+?name=.+?\".\">(.+?)<\/a>/is",
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"/<br.*>/siU",
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"/<span\s+?style=\"float:\s+(left|right);\">(.+?)<\/span>/is",
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"/<div class=\"quote\"><span class=\"q\">(.*?)<\/span><\/div>/is",
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"/<div class=\"quote\"><blockquote>(.*?)<\/blockquote><\/div>/is",
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);
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$pregreplace = array(
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'',
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'',
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'',
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"tabletag('\\1')",
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'[table]',
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'[tr]',
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'[td]',
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"tdtag('\\1')",
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'[/td]',
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'[/tr]',
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'[/table]',
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"[size=\\1]\\2[/size]\n\n",
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"smileycode('\\1')",
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"imgtag('\\1')",
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'\1',
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"\n",
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"[float=\\1]\\2[/float]",
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"[quote]\\1[/quote]",
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"[quote]\\1[/quote]",
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);
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$text = preg_replace($pregfind, $pregreplace, $text);
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$text = recursion('b', $text, 'simpletag', 'b');
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$text = recursion('strong', $text, 'simpletag', 'b');
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$text = recursion('i', $text, 'simpletag', 'i');
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$text = recursion('em', $text, 'simpletag', 'i');
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$text = recursion('u', $text, 'simpletag', 'u');
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$text = recursion('a', $text, 'atag');
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$text = recursion('font', $text, 'fonttag');
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$text = recursion('blockquote', $text, 'simpletag', 'indent');
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$text = recursion('ol', $text, 'listtag');
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$text = recursion('ul', $text, 'listtag');
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$text = recursion('div', $text, 'divtag');
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$text = recursion('span', $text, 'spantag');
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$text = recursion('p', $text, 'ptag');
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$pregfind = array("/(?<!\r|\n|^)\[(\/list|list|\*)\]/", "/<li>(.*)((?=<li>)|<\/li>)/iU", "/<p.*>/iU", "/<p><\/p>/i", "/(<a>|<\/a>|<\/li>)/is", "/<\/?(A|LI|FONT|DIV|SPAN)>/siU", "/\[url[^\]]*\]\[\/url\]/i", "/\[url=javascript:[^\]]*\](.+?)\[\/url\]/is");
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$pregreplace = array("\n[\\1]", "\\1\n", "\n", '', '', '', '', "\\1");
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$text = preg_replace($pregfind, $pregreplace, $text);
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$strfind = array(' ', '<', '>', '&');
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$strreplace = array(' ', '<', '>', '&');
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$text = str_replace($strfind, $strreplace, $text);
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return htmlspecialchars(trim($text));
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}
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function imgtag($attributes) {
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$value = array('src' => '', 'width' => '', 'height' => '');
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preg_match_all("/(src|width|height)=([\"|\']?)([^\"']+)(\\2)/is", dstripslashes($attributes), $matches);
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if(is_array($matches[1])) {
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foreach($matches[1] as $key => $attribute) {
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$value[strtolower($attribute)] = $matches[3][$key];
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}
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}
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@extract($value);
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if(!preg_match("/^http:\/\//i", $src)) {
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$src = absoluteurl($src);
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}
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return $src ? ($width && $height ? '[img='.$width.','.$height.']'.$src.'[/img]' : '[img]'.$src.'[/img]') : '';
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}
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function ismozilla() {
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$useragent = strtolower($_SERVER['HTTP_USER_AGENT']);
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if(strpos($useragent, 'gecko') !== FALSE) {
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preg_match("/gecko\/(\d+)/", $useragent, $regs);
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return $regs[1];
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}
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return FALSE;
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}
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function litag($listoptions, $text) {
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return '[*]'.rtrim($text);
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}
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function listtag($listoptions, $text, $tagname) {
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$text = preg_replace('/<li>((.(?!<\/li))*)(?=<\/?ol|<\/?ul|<li|\[list|\[\/list)/siU', '<li>\\1</li>', $text);
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$text = recursion('li', $text, 'litag');
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if($tagname == 'ol') {
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$listtype = fetchoptionvalue('type=', $listoptions) ? fetchoptionvalue('type=', $listoptions) : 1;
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if(in_array($listtype, array('1', 'a', 'A'))) {
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$opentag = '[list='.$listtype.']';
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}
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} else {
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$opentag = '[list]';
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}
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return $text ? $opentag.recursion($tagname, $text, 'listtag').'[/list]' : FALSE;
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}
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function parsestyle($tagoptions, &$prependtags, &$appendtags) {
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$searchlist = array(
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array('tag' => 'align', 'option' => TRUE, 'regex' => 'text-align:\s*(left);?', 'match' => 1),
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array('tag' => 'align', 'option' => TRUE, 'regex' => 'text-align:\s*(center);?', 'match' => 1),
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array('tag' => 'align', 'option' => TRUE, 'regex' => 'text-align:\s*(right);?', 'match' => 1),
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array('tag' => 'color', 'option' => TRUE, 'regex' => '(?<![a-z0-9-])color:\s*([^;]+);?', 'match' => 1),
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array('tag' => 'font', 'option' => TRUE, 'regex' => 'font-family:\s*([^;]+);?', 'match' => 1),
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array('tag' => 'size', 'option' => TRUE, 'regex' => 'font-size:\s*(\d+(\.\d+)?(px|pt|in|cm|mm|pc|em|ex|%|));?', 'match' => 1),
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array('tag' => 'b', 'option' => FALSE, 'regex' => 'font-weight:\s*(bold);?'),
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array('tag' => 'i', 'option' => FALSE, 'regex' => 'font-style:\s*(italic);?'),
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array('tag' => 'u', 'option' => FALSE, 'regex' => 'text-decoration:\s*(underline);?')
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);
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$style = getoptionvalue('style', $tagoptions);
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$style = preg_replace(
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"/(?<![a-z0-9-])color:\s*rgb\((\d+),\s*(\d+),\s*(\d+)\)(;?)/ie",
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'sprintf("color: #%02X%02X%02X$4", $1, $2, $3)',
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$style
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);
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foreach($searchlist as $searchtag) {
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if(preg_match('/'.$searchtag['regex'].'/i', $style, $match)) {
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$opnvalue = $match["$searchtag[match]"];
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$prependtags .= '['.$searchtag['tag'].($searchtag['option'] == TRUE ? '='.$opnvalue.']' : ']');
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$appendtags = '[/'.$searchtag['tag']."]$appendtags";
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}
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}
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}
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function ptag($poptions, $text) {
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$align = getoptionvalue('align', $poptions);
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switch($align) {
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case 'left':
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case 'center':
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case 'right':
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break;
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default:
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$align = '';
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}
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$prepend = $append = '';
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parsestyle($poptions, $prepend, $append);
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if($align) {
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$prepend .= "[align=$align]";
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$append .= "[/align]";
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}
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$append .= "\n";
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return $prepend.recursion('p', $text, 'ptag').$append;
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}
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function recursion($tagname, $text, $function, $extraargs = '') {
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$tagname = strtolower($tagname);
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$open_tag = "<$tagname";
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$open_tag_len = strlen($open_tag);
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$close_tag = "</$tagname>";
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$close_tag_len = strlen($close_tag);
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$beginsearchpos = 0;
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do {
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$textlower = strtolower($text);
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$tagbegin = @strpos($textlower, $open_tag, $beginsearchpos);
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if($tagbegin === FALSE) {
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break;
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}
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$strlen = strlen($text);
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$inquote = '';
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$found = FALSE;
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$tagnameend = FALSE;
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for($optionend = $tagbegin; $optionend <= $strlen; $optionend++) {
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$char = $text{$optionend};
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if(($char == '"' || $char == "'") && $inquote == '') {
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$inquote = $char;
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} elseif(($char == '"' || $char == "'") && $inquote == $char) {
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$inquote = '';
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} elseif($char == '>' && !$inquote) {
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$found = TRUE;
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break;
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} elseif(($char == '=' || $char == ' ') && !$tagnameend) {
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$tagnameend = $optionend;
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}
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}
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if(!$found) {
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break;
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}
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if(!$tagnameend) {
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$tagnameend = $optionend;
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}
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$offset = $optionend - ($tagbegin + $open_tag_len);
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$tagoptions = substr($text, $tagbegin + $open_tag_len, $offset);
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$acttagname = substr($textlower, $tagbegin + 1, $tagnameend - $tagbegin - 1);
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if($acttagname != $tagname) {
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$beginsearchpos = $optionend;
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continue;
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}
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$tagend = strpos($textlower, $close_tag, $optionend);
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if($tagend === FALSE) {
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break;
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}
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$nestedopenpos = strpos($textlower, $open_tag, $optionend);
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while($nestedopenpos !== FALSE && $tagend !== FALSE) {
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if($nestedopenpos > $tagend) {
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break;
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}
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$tagend = strpos($textlower, $close_tag, $tagend + $close_tag_len);
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$nestedopenpos = strpos($textlower, $open_tag, $nestedopenpos + $open_tag_len);
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}
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if($tagend === FALSE) {
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$beginsearchpos = $optionend;
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continue;
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}
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$localbegin = $optionend + 1;
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$localtext = $function($tagoptions, substr($text, $localbegin, $tagend - $localbegin), $tagname, $extraargs);
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$text = substr_replace($text, $localtext, $tagbegin, $tagend + $close_tag_len - $tagbegin);
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$beginsearchpos = $tagbegin + strlen($localtext);
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} while($tagbegin !== FALSE);
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return $text;
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}
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function simpletag($options, $text, $tagname, $parseto) {
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if(trim($text) == '') {
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return '';
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}
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$text = recursion($tagname, $text, 'simpletag', $parseto);
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return "[$parseto]{$text}[/$parseto]";
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}
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function smileycode($smileyid) {
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return $smileyid;
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}
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function spantag($spanoptions, $text) {
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$prependtags = $appendtags = '';
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parsestyle($spanoptions, $prependtags, $appendtags);
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return $prependtags.recursion('span', $text, 'spantag').$appendtags;
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}
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function tabletag($attributes) {
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$attributes = dstripslashes($attributes);
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$width = '';
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if(preg_match("/width=([\"|\']?)(\d{1,4}%?)(\\1)/is", $attributes, $matches)) {
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$width = substr($matches[2], -1) == '%' ? (substr($matches[2], 0, -1) <= 98 ? $matches[2] : '98%') : ($matches[2] <= 560 ? $matches[2] : '560');
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} elseif(preg_match("/width\s?:\s?(\d{1,4})([px|%])/is", $attributes, $matches)) {
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$width = $matches[2] == '%' ? ($matches[1] <= 98 ? $matches[1] : '98%') : ($matches[1] <= 560 ? $matches[1] : '560');
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}
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if(preg_match("/(?:background|background-color|bgcolor)[:=]\s*([\"']?)((rgb\(\d{1,3}%?,\s*\d{1,3}%?,\s*\d{1,3}%?\))|(#[0-9a-fA-F]{3,6})|([a-zA-Z]{1,20}))(\\1)/i", $attributes, $matches)) {
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$bgcolor = $matches[2];
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$width = $width ? $width : '98%';
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} else {
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$bgcolor = '';
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}
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return $bgcolor ? "[table=$width,$bgcolor]" :($width ? "[table=$width]" : '[table]');
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}
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function tdtag($attributes) {
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$value = array('colspan' => 1, 'rowspan' => 1, 'width' => '');
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preg_match_all("/(colspan|rowspan|width)=([\"|\']?)(\d{1,4}%?)(\\2)/is", dstripslashes($attributes), $matches);
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if(is_array($matches[1])) {
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foreach($matches[1] as $key => $attribute) {
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$value[strtolower($attribute)] = $matches[3][$key];
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}
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}
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@extract($value);
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return $width == '' ? ($colspan == 1 && $rowspan == 1 ? '[td]' : "[td=$colspan,$rowspan]") : "[td=$colspan,$rowspan,$width]";
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}
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?>
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