Merge remote-tracking branch 'friendica/master' into randomerror

1 files changed, 180 insertions, 0 deletions

diff --git a/include/html2plain.php b/include/html2plain.php
new file mode 100644
index 000000000..2a4cf6639
--- /dev/null
+++ b/include/html2plain.php
@@ -0,0 +1,180 @@
+<?php
+require_once "html2bbcode.php";
+
+function breaklines($line, $level)
+{
+	$wraplen = 75-$level;
+
+	$newlines = array();
+
+	do {
+		$oldline = $line;
+
+		$subline = substr($line, 0, $wraplen);
+
+		$pos = strrpos($subline, ' ');
+
+		if ($pos == 0)
+			$pos = strpos($line, ' ');
+
+		if (($pos > 0) and strlen($line) > $wraplen) {
+			$newline = trim(substr($line, 0, $pos));
+			if ($level > 0)
+                		$newline = str_repeat(">", $level).' '.$newline;
+
+			$newlines[] = $newline." ";
+			$line = substr($line, $pos+1);
+		}
+
+	} while ((strlen($line) > $wraplen) and !($oldline == $line));
+
+	if ($level > 0)
+		$line = str_repeat(">", $level).' '.$line;
+
+	$newlines[] = $line;
+
+
+	return(implode($newlines, "\n"));
+}
+
+function quotelevel($message)
+{
+	$lines = explode("\n", $message);
+
+	$newlines = array();
+	$level = 0;
+	foreach($lines as $line) {;
+		$line = trim($line);
+		$startquote = false;
+		while (strpos("*".$line, '[quote]') > 0) {
+			$level++;
+			$pos = strpos($line, '[quote]');
+			$line = substr($line, 0, $pos).substr($line, $pos+7);
+			$startquote = true;
+		}
+
+		$currlevel = $level;
+
+		while (strpos("*".$line, '[/quote]') > 0) {
+			$level--;
+			if ($level < 0)
+				$level = 0;
+
+			$pos = strpos($line, '[/quote]');
+			$line = substr($line, 0, $pos).substr($line, $pos+8);
+		}
+
+		if (!$startquote or ($line != ''))
+			$newlines[] = breaklines($line, $currlevel);
+	}
+	return(implode($newlines, "\n"));
+}
+
+function html2plain($html)
+{
+	global $lang;
+
+	$message = str_replace("\r", "", $html);
+
+	$doc = new DOMDocument();
+	$doc->preserveWhiteSpace = false;
+
+	$message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
+
+	@$doc->loadHTML($message);
+
+	$xpath = new DomXPath($doc);
+	$list = $xpath->query("//pre");
+	foreach ($list as $node) {
+		$node->nodeValue = str_replace("\n", "\r", $node->nodeValue);
+	}
+
+	$message = $doc->saveHTML();
+	$message = str_replace(array("\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"), array("<", ">", "<br>", " ", ""), $message);
+	$message = preg_replace('= [\s]*=i', " ", $message);
+
+	// nach <a href="...">...</a> suchen, die ... miteinander vergleichen und bei Gleichheit durch ein einzelnes ... ersetzen.
+	$pattern = '/<a.*?href="(.*?)".*?>(.*?)<\/a>/is';
+	preg_match_all($pattern, $message, $result, PREG_SET_ORDER);
+
+	foreach ($result as $treffer) {
+		if ($treffer[1] == $treffer[2]) {
+			$search = '<a href="'.$treffer[1].'" target="_blank">'.$treffer[1].'</a>';
+			$message = str_replace($search, $treffer[1], $message);
+		}
+	}
+	@$doc->loadHTML($message);
+
+	node2bbcode($doc, 'html', array(), '', '');
+	node2bbcode($doc, 'body', array(), '', '');
+
+	// MyBB-Auszeichnungen
+	node2bbcode($doc, 'span', array('style'=>'text-decoration: underline;'), '_', '_');
+	node2bbcode($doc, 'span', array('style'=>'font-style: italic;'), '/', '/');
+	node2bbcode($doc, 'span', array('style'=>'font-weight: bold;'), '*', '*');
+
+	node2bbcode($doc, 'strong', array(), '*', '*');
+	node2bbcode($doc, 'b', array(), '*', '*');
+	node2bbcode($doc, 'i', array(), '/', '/');
+	node2bbcode($doc, 'u', array(), '_', '_');
+
+	node2bbcode($doc, 'blockquote', array(), '[quote]', "[/quote]\n");
+
+	node2bbcode($doc, 'br', array(), "\n", '');
+
+	node2bbcode($doc, 'span', array(), "", "");
+	node2bbcode($doc, 'pre', array(), "", "");
+	node2bbcode($doc, 'div', array(), "\r", "\r");
+	node2bbcode($doc, 'p', array(), "\n", "\n");
+
+	//node2bbcode($doc, 'ul', array(), "\n[list]", "[/list]\n");
+	//node2bbcode($doc, 'ol', array(), "\n[list=1]", "[/list]\n");
+	node2bbcode($doc, 'li', array(), "\n* ", "\n");
+
+	node2bbcode($doc, 'hr', array(), str_repeat("-", 70), "");
+
+	node2bbcode($doc, 'tr', array(), "\n", "");
+	node2bbcode($doc, 'td', array(), "\t", "");
+
+	node2bbcode($doc, 'h1', array(), "\n\n*", "*\n");
+	node2bbcode($doc, 'h2', array(), "\n\n*", "*\n");
+	node2bbcode($doc, 'h3', array(), "\n\n*", "*\n");
+	node2bbcode($doc, 'h4', array(), "\n\n*", "*\n");
+	node2bbcode($doc, 'h5', array(), "\n\n*", "*\n");
+	node2bbcode($doc, 'h6', array(), "\n\n*", "*\n");
+
+	node2bbcode($doc, 'a', array('href'=>'/(.+)/'), ' $1', '', true);
+	node2bbcode($doc, 'img', array('alt'=>'/(.+)/'), '$1', '');
+	node2bbcode($doc, 'img', array('title'=>'/(.+)/'), '$1', '');
+	node2bbcode($doc, 'img', array(), '', '');
+	node2bbcode($doc, 'img', array('src'=>'/(.+)/'), '[img]$1', '[/img]');
+
+	$message = $doc->saveHTML();
+
+	$message = str_replace("[img]", "", $message);
+	$message = str_replace("[/img]", "", $message);
+
+	// was ersetze ich da?
+	// Irgendein stoerrisches UTF-Zeug
+	$message = str_replace(chr(194).chr(160), ' ', $message);
+
+	$message = str_replace("&nbsp;", " ", $message);
+
+	// Aufeinanderfolgende DIVs
+	$message = preg_replace('=\r *\r=i', "\n", $message);
+	$message = str_replace("\r", "\n", $message);
+
+	$message = strip_tags($message);
+
+	$message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
+
+	do {
+		$oldmessage = $message;
+		$message = str_replace("\n\n\n", "\n\n", $message);
+	} while ($oldmessage != $message);
+
+	$message = quotelevel(trim($message));
+
+	return(trim($message));
+}
+?>