223 lines
6 KiB
PHP
223 lines
6 KiB
PHP
<?php
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require_once "html2bbcode.php";
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function breaklines($line, $level, $wraplength = 75)
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{
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if ($wraplength == 0)
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$wraplength = 2000000;
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// return($line);
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$wraplen = $wraplength-$level;
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$newlines = array();
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do {
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$oldline = $line;
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$subline = substr($line, 0, $wraplen);
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$pos = strrpos($subline, ' ');
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if ($pos == 0)
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$pos = strpos($line, ' ');
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if (($pos > 0) and strlen($line) > $wraplen) {
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$newline = trim(substr($line, 0, $pos));
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if ($level > 0)
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$newline = str_repeat(">", $level).' '.$newline;
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$newlines[] = $newline." ";
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$line = substr($line, $pos+1);
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}
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} while ((strlen($line) > $wraplen) and !($oldline == $line));
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if ($level > 0)
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$line = str_repeat(">", $level).' '.$line;
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$newlines[] = $line;
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return(implode($newlines, "\n"));
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}
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function quotelevel($message, $wraplength = 75)
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{
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$lines = explode("\n", $message);
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$newlines = array();
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$level = 0;
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foreach($lines as $line) {;
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$line = trim($line);
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$startquote = false;
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while (strpos("*".$line, '[quote]') > 0) {
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$level++;
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$pos = strpos($line, '[quote]');
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$line = substr($line, 0, $pos).substr($line, $pos+7);
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$startquote = true;
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}
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$currlevel = $level;
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while (strpos("*".$line, '[/quote]') > 0) {
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$level--;
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if ($level < 0)
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$level = 0;
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$pos = strpos($line, '[/quote]');
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$line = substr($line, 0, $pos).substr($line, $pos+8);
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}
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if (!$startquote or ($line != ''))
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$newlines[] = breaklines($line, $currlevel, $wraplength);
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}
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return(implode($newlines, "\n"));
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}
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function collecturls($message) {
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$pattern = '/<a.*?href="(.*?)".*?>(.*?)<\/a>/is';
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preg_match_all($pattern, $message, $result, PREG_SET_ORDER);
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$urls = array();
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foreach ($result as $treffer) {
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// A list of some links that should be ignored
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$list = array("/user/", "/tag/", "/group/", "/profile/", "/search?search=", "mailto:", "/u/", "/node/",
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"//facebook.com/profile.php?id=", "//plus.google.com/");
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foreach ($list as $listitem)
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if (strpos($treffer[1], $listitem) !== false)
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$ignore = true;
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if ((strpos($treffer[1], "//plus.google.com/") !== false) and (strpos($treffer[1], "/posts") !== false))
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$ignore = false;
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if (!$ignore)
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$urls[$treffer[1]] = $treffer[1];
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}
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return($urls);
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}
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function html2plain($html, $wraplength = 75, $compact = false)
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{
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global $lang;
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$message = str_replace("\r", "", $html);
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$doc = new DOMDocument();
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$doc->preserveWhiteSpace = false;
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$message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
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@$doc->loadHTML($message);
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$xpath = new DomXPath($doc);
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$list = $xpath->query("//pre");
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foreach ($list as $node) {
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$node->nodeValue = str_replace("\n", "\r", $node->nodeValue);
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}
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$message = $doc->saveHTML();
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$message = str_replace(array("\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"), array("<", ">", "<br>", " ", ""), $message);
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$message = preg_replace('= [\s]*=i', " ", $message);
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// Collecting all links
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$urls = collecturls($message);
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@$doc->loadHTML($message);
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node2bbcode($doc, 'html', array(), '', '');
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node2bbcode($doc, 'body', array(), '', '');
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// MyBB-Auszeichnungen
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/*
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node2bbcode($doc, 'span', array('style'=>'text-decoration: underline;'), '_', '_');
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node2bbcode($doc, 'span', array('style'=>'font-style: italic;'), '/', '/');
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node2bbcode($doc, 'span', array('style'=>'font-weight: bold;'), '*', '*');
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node2bbcode($doc, 'strong', array(), '*', '*');
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node2bbcode($doc, 'b', array(), '*', '*');
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node2bbcode($doc, 'i', array(), '/', '/');
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node2bbcode($doc, 'u', array(), '_', '_');
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*/
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if ($compact)
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node2bbcode($doc, 'blockquote', array(), "»", "«");
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else
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node2bbcode($doc, 'blockquote', array(), '[quote]', "[/quote]\n");
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node2bbcode($doc, 'br', array(), "\n", '');
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node2bbcode($doc, 'span', array(), "", "");
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node2bbcode($doc, 'pre', array(), "", "");
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node2bbcode($doc, 'div', array(), "\r", "\r");
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node2bbcode($doc, 'p', array(), "\n", "\n");
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//node2bbcode($doc, 'ul', array(), "\n[list]", "[/list]\n");
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//node2bbcode($doc, 'ol', array(), "\n[list=1]", "[/list]\n");
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node2bbcode($doc, 'li', array(), "\n* ", "\n");
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node2bbcode($doc, 'hr', array(), "\n".str_repeat("-", 70)."\n", "");
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node2bbcode($doc, 'tr', array(), "\n", "");
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node2bbcode($doc, 'td', array(), "\t", "");
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node2bbcode($doc, 'h1', array(), "\n\n*", "*\n");
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node2bbcode($doc, 'h2', array(), "\n\n*", "*\n");
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node2bbcode($doc, 'h3', array(), "\n\n*", "*\n");
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node2bbcode($doc, 'h4', array(), "\n\n*", "*\n");
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node2bbcode($doc, 'h5', array(), "\n\n*", "*\n");
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node2bbcode($doc, 'h6', array(), "\n\n*", "*\n");
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// Problem: there is no reliable way to detect if it is a link to a tag or profile
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//node2bbcode($doc, 'a', array('href'=>'/(.+)/'), ' $1 ', '', true);
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node2bbcode($doc, 'a', array('href'=>'/(.+)/', 'rel'=>'oembed'), ' $1 ', '', true);
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//node2bbcode($doc, 'img', array('alt'=>'/(.+)/'), '$1', '');
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//node2bbcode($doc, 'img', array('title'=>'/(.+)/'), '$1', '');
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//node2bbcode($doc, 'img', array(), '', '');
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if (!$compact)
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node2bbcode($doc, 'img', array('src'=>'/(.+)/'), '[img]$1', '[/img]');
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else
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node2bbcode($doc, 'img', array('src'=>'/(.+)/'), '', '');
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node2bbcode($doc, 'iframe', array('src'=>'/(.+)/'), ' $1 ', '', true);
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$message = $doc->saveHTML();
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if (!$compact) {
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$message = str_replace("[img]", "", $message);
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$message = str_replace("[/img]", "", $message);
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}
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// was ersetze ich da?
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// Irgendein stoerrisches UTF-Zeug
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$message = str_replace(chr(194).chr(160), ' ', $message);
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$message = str_replace(" ", " ", $message);
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// Aufeinanderfolgende DIVs
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$message = preg_replace('=\r *\r=i', "\n", $message);
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$message = str_replace("\r", "\n", $message);
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$message = strip_tags($message);
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$message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
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if (!$compact) {
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$counter = 1;
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foreach ($urls as $id=>$url)
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if (strpos($message, $url) == false)
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$message .= "\n".$url." ";
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//$message .= "\n[".($counter++)."] ".$url;
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}
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do {
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$oldmessage = $message;
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$message = str_replace("\n\n\n", "\n\n", $message);
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} while ($oldmessage != $message);
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$message = quotelevel(trim($message), $wraplength);
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return(trim($message));
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}
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?>
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