Friendica Communications Platform (please note that this is a clone of the repository at github, issues are handled there) https://friendi.ca
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<?php
/**
* @file include/html2bbcode.php
* @brief Converter for HTML to BBCode
*
* Made by: ike@piratenpartei.de
* Originally made for the syncom project: http://wiki.piratenpartei.de/Syncom
* https://github.com/annando/Syncom
*/
require_once("include/xml.php");
function node2bbcode(&$doc, $oldnode, $attributes, $startbb, $endbb)
{
do {
$done = node2bbcodesub($doc, $oldnode, $attributes, $startbb, $endbb);
} while ($done);
}
function node2bbcodesub(&$doc, $oldnode, $attributes, $startbb, $endbb)
{
$savestart = str_replace('$', '\x01', $startbb);
$replace = false;
$xpath = new DomXPath($doc);
$list = $xpath->query("//".$oldnode);
foreach ($list as $oldNode) {
$attr = array();
if ($oldNode->attributes->length)
foreach ($oldNode->attributes as $attribute)
$attr[$attribute->name] = $attribute->value;
$replace = true;
$startbb = $savestart;
$i = 0;
foreach ($attributes as $attribute => $value) {
$startbb = str_replace('\x01'.++$i, '$1', $startbb);
if (strpos('*'.$startbb, '$1') > 0) {
if ($replace and (@$attr[$attribute] != '')) {
$startbb = preg_replace($value, $startbb, $attr[$attribute], -1, $count);
// If nothing could be changed
if ($count == 0)
$replace = false;
} else
$replace = false;
} else {
if (@$attr[$attribute] != $value)
$replace = false;
}
}
if ($replace) {
$StartCode = $oldNode->ownerDocument->createTextNode($startbb);
$EndCode = $oldNode->ownerDocument->createTextNode($endbb);
$oldNode->parentNode->insertBefore($StartCode, $oldNode);
if ($oldNode->hasChildNodes()) {
foreach ($oldNode->childNodes as $child) {
$newNode = $child->cloneNode(true);
$oldNode->parentNode->insertBefore($newNode, $oldNode);
}
}
$oldNode->parentNode->insertBefore($EndCode, $oldNode);
$oldNode->parentNode->removeChild($oldNode);
}
}
return($replace);
}
function html2bbcode($message)
{
$message = str_replace("\r", "", $message);
// Removing code blocks before the whitespace removal processing below
$codeblocks = [];
$message = preg_replace_callback('#<pre><code(?: class="([^"]*)")?>(.*)</code></pre>#iUs',
function ($matches) use (&$codeblocks) {
$return = '[codeblock-' . count($codeblocks) . ']';
$prefix = '[code]';
if ($matches[1] != '') {
$prefix = '[code=' . $matches[1] . ']';
}
$codeblocks[] = $prefix . $matches[2] . '[/code]';
return $return;
}
, $message);
$message = str_replace(array(
"<li><p>",
"</p></li>",
),
array(
"<li>",
"</li>",
),
$message);
// remove namespaces
$message = preg_replace('=<(\w+):(.+?)>=', '<removeme>', $message);
$message = preg_replace('=</(\w+):(.+?)>=', '</removeme>', $message);
$doc = new DOMDocument();
$doc->preserveWhiteSpace = false;
$message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
@$doc->loadHTML($message);
xml::deleteNode($doc, 'style');
xml::deleteNode($doc, 'head');
xml::deleteNode($doc, 'title');
xml::deleteNode($doc, 'meta');
xml::deleteNode($doc, 'xml');
xml::deleteNode($doc, 'removeme');
$xpath = new DomXPath($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', " ", $message);
@$doc->loadHTML($message);
node2bbcode($doc, 'html', array(), "", "");
node2bbcode($doc, 'body', array(), "", "");
// Outlook-Quote - Variant 1
node2bbcode($doc, 'p', array('class'=>'MsoNormal', 'style'=>'margin-left:35.4pt'), '[quote]', '[/quote]');
// Outlook-Quote - Variant 2
node2bbcode($doc, 'div', array('style'=>'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'), '[quote]', '[/quote]');
// MyBB-Stuff
node2bbcode($doc, 'span', array('style'=>'text-decoration: underline;'), '[u]', '[/u]');
node2bbcode($doc, 'span', array('style'=>'font-style: italic;'), '[i]', '[/i]');
node2bbcode($doc, 'span', array('style'=>'font-weight: bold;'), '[b]', '[/b]');
/*node2bbcode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[font=$1][size=$2][color=$3]', '[/color][/size][/font]');
node2bbcode($doc, 'font', array('size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[size=$1][color=$2]', '[/color][/size]');
node2bbcode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(.+)/'), '[font=$1][size=$2]', '[/size][/font]');
node2bbcode($doc, 'font', array('face'=>'/([\w ]+)/', 'color'=>'/(.+)/'), '[font=$1][color=$3]', '[/color][/font]');
node2bbcode($doc, 'font', array('face'=>'/([\w ]+)/'), '[font=$1]', '[/font]');
node2bbcode($doc, 'font', array('size'=>'/(\d+)/'), '[size=$1]', '[/size]');
node2bbcode($doc, 'font', array('color'=>'/(.+)/'), '[color=$1]', '[/color]');
*/
// Untested
//node2bbcode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*font-family:\s*(.+?)[,;].*color:\s*(.+?)[,;].*/'), '[size=$1][font=$2][color=$3]', '[/color][/font][/size]');
//node2bbcode($doc, 'span', array('style'=>'/.*font-size:\s*(\d+)[,;].*/'), '[size=$1]', '[/size]');
//node2bbcode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*/'), '[size=$1]', '[/size]');
node2bbcode($doc, 'span', array('style'=>'/.*color:\s*(.+?)[,;].*/'), '[color="$1"]', '[/color]');
//node2bbcode($doc, 'span', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
//node2bbcode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)pt.*/'), '[font=$1][size=$2]', '[/size][/font]');
//node2bbcode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)px.*/'), '[font=$1][size=$2]', '[/size][/font]');
//node2bbcode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
// Importing the classes - interesting for importing of posts from third party networks that were exported from friendica
// Test
//node2bbcode($doc, 'span', array('class'=>'/([\w ]+)/'), '[class=$1]', '[/class]');
node2bbcode($doc, 'span', array('class'=>'type-link'), '[class=type-link]', '[/class]');
node2bbcode($doc, 'span', array('class'=>'type-video'), '[class=type-video]', '[/class]');
node2bbcode($doc, 'strong', array(), '[b]', '[/b]');
node2bbcode($doc, 'em', array(), '[i]', '[/i]');
node2bbcode($doc, 'b', array(), '[b]', '[/b]');
node2bbcode($doc, 'i', array(), '[i]', '[/i]');
node2bbcode($doc, 'u', array(), '[u]', '[/u]');
node2bbcode($doc, 'big', array(), "[size=large]", "[/size]");
node2bbcode($doc, 'small', array(), "[size=small]", "[/size]");
node2bbcode($doc, 'blockquote', array(), '[quote]', '[/quote]');
node2bbcode($doc, 'br', array(), "\n", '');
node2bbcode($doc, 'p', array('class'=>'MsoNormal'), "\n", "");
node2bbcode($doc, 'div', array('class'=>'MsoNormal'), "\r", "");
node2bbcode($doc, 'span', array(), "", "");
node2bbcode($doc, 'span', array(), "", "");
node2bbcode($doc, 'pre', array(), "", "");
node2bbcode($doc, 'div', array(), "\r", "\r");
node2bbcode($doc, 'p', array(), "\n", "\n");
node2bbcode($doc, 'ul', array(), "[list]", "[/list]");
node2bbcode($doc, 'ol', array(), "[list=1]", "[/list]");
node2bbcode($doc, 'li', array(), "[*]", "");
node2bbcode($doc, 'hr', array(), "[hr]", "");
node2bbcode($doc, 'table', array(), "", "");
node2bbcode($doc, 'tr', array(), "\n", "");
node2bbcode($doc, 'td', array(), "\t", "");
//node2bbcode($doc, 'table', array(), "[table]", "[/table]");
//node2bbcode($doc, 'th', array(), "[th]", "[/th]");
//node2bbcode($doc, 'tr', array(), "[tr]", "[/tr]");
//node2bbcode($doc, 'td', array(), "[td]", "[/td]");
//node2bbcode($doc, 'h1', array(), "\n\n[size=xx-large][b]", "[/b][/size]\n");
//node2bbcode($doc, 'h2', array(), "\n\n[size=x-large][b]", "[/b][/size]\n");
//node2bbcode($doc, 'h3', array(), "\n\n[size=large][b]", "[/b][/size]\n");
//node2bbcode($doc, 'h4', array(), "\n\n[size=medium][b]", "[/b][/size]\n");
//node2bbcode($doc, 'h5', array(), "\n\n[size=small][b]", "[/b][/size]\n");
//node2bbcode($doc, 'h6', array(), "\n\n[size=x-small][b]", "[/b][/size]\n");
node2bbcode($doc, 'h1', array(), "\n\n[h1]", "[/h1]\n");
node2bbcode($doc, 'h2', array(), "\n\n[h2]", "[/h2]\n");
node2bbcode($doc, 'h3', array(), "\n\n[h3]", "[/h3]\n");
node2bbcode($doc, 'h4', array(), "\n\n[h4]", "[/h4]\n");
node2bbcode($doc, 'h5', array(), "\n\n[h5]", "[/h5]\n");
node2bbcode($doc, 'h6', array(), "\n\n[h6]", "[/h6]\n");
node2bbcode($doc, 'a', array('href'=>'/mailto:(.+)/'), '[mail=$1]', '[/mail]');
node2bbcode($doc, 'a', array('href'=>'/(.+)/'), '[url=$1]', '[/url]');
node2bbcode($doc, 'img', array('src'=>'/(.+)/', 'width'=>'/(\d+)/', 'height'=>'/(\d+)/'), '[img=$2x$3]$1', '[/img]');
node2bbcode($doc, 'img', array('src'=>'/(.+)/'), '[img]$1', '[/img]');
node2bbcode($doc, 'video', array('src'=>'/(.+)/'), '[video]$1', '[/video]');
node2bbcode($doc, 'audio', array('src'=>'/(.+)/'), '[audio]$1', '[/audio]');
node2bbcode($doc, 'iframe', array('src'=>'/(.+)/'), '[iframe]$1', '[/iframe]');
node2bbcode($doc, 'key', array(), '[code]', '[/code]');
$message = $doc->saveHTML();
// I'm removing something really disturbing
// Don't know exactly what it is
$message = str_replace(chr(194).chr(160), ' ', $message);
$message = str_replace("&nbsp;", " ", $message);
// removing multiple DIVs
$message = preg_replace('=\r *\r=i', "\n", $message);
$message = str_replace("\r", "\n", $message);
call_hooks('html2bbcode', $message);
$message = strip_tags($message);
$message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
$message = str_replace(array("<"), array("&lt;"), $message);
// remove quotes if they don't make sense
$message = preg_replace('=\[/quote\][\s]*\[quote\]=i', "\n", $message);
$message = preg_replace('=\[quote\]\s*=i', "[quote]", $message);
$message = preg_replace('=\s*\[/quote\]=i', "[/quote]", $message);
do {
$oldmessage = $message;
$message = str_replace("\n \n", "\n\n", $message);
} while ($oldmessage != $message);
do {
$oldmessage = $message;
$message = str_replace("\n\n\n", "\n\n", $message);
} while ($oldmessage != $message);
do {
$oldmessage = $message;
$message = str_replace(array(
"[/size]\n\n",
"\n[hr]",
"[hr]\n",
"\n[list",
"[/list]\n",
"\n[/",
"[list]\n",
"[list=1]\n",
"\n[*]"),
array(
"[/size]\n",
"[hr]",
"[hr]",
"[list",
"[/list]",
"[/",
"[list]",
"[list=1]",
"[*]"),
$message);
} while ($message != $oldmessage);
$message = str_replace(array('[b][b]', '[/b][/b]', '[i][i]', '[/i][/i]'),
array('[b]', '[/b]', '[i]', '[/i]'), $message);
// Handling Yahoo style of mails
$message = str_replace('[hr][b]From:[/b]', '[quote][b]From:[/b]', $message);
// Restore code blocks
$message = preg_replace_callback('#\[codeblock-([0-9]+)\]#iU',
function ($matches) use ($codeblocks) {
$return = '';
if (isset($codeblocks[intval($matches[1])])) {
$return = $codeblocks[$matches[1]];
}
return $return;
}
, $message);
$message = trim($message);
return $message;
}
?>