mirror of
https://github.com/friendica/friendica
synced 2024-11-14 04:22:55 +00:00
Create Content\Text\HTML class
- Move BBCode::cleanCss to HTML::sanitizeCSS
This commit is contained in:
Hypolite Petovan
parent
e2fd882134
commit
1df4bb6db8
2 changed files with 676 additions and 23 deletions
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@ -764,27 +764,6 @@ class BBCode extends BaseObject
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return $text . "\n" . $data["after"];
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return $text . "\n" . $data["after"];
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}
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}
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private static function cleanCss($input)
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{
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$cleaned = "";
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$input = strtolower($input);
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for ($i = 0; $i < strlen($input); $i++) {
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$char = substr($input, $i, 1);
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if (($char >= "a") && ($char <= "z")) {
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$cleaned .= $char;
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}
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if (!(strpos(" #;:0123456789-_.%", $char) === false)) {
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$cleaned .= $char;
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}
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}
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return $cleaned;
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}
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/**
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/**
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* Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
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* Converts [url] BBCodes in a format that looks fine on Mastodon. (callback function)
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*
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*
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@ -1629,7 +1608,7 @@ class BBCode extends BaseObject
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$text = preg_replace_callback(
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$text = preg_replace_callback(
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"(\[style=(.*?)\](.*?)\[\/style\])ism",
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"(\[style=(.*?)\](.*?)\[\/style\])ism",
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function ($match) {
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function ($match) {
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return "<span style=\"" . self::cleanCss($match[1]) . ";\">" . $match[2] . "</span>";
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return "<span style=\"" . HTML::sanitizeCSS($match[1]) . ";\">" . $match[2] . "</span>";
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},
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},
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$text
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$text
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);
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);
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@ -1638,7 +1617,7 @@ class BBCode extends BaseObject
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$text = preg_replace_callback(
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$text = preg_replace_callback(
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"(\[class=(.*?)\](.*?)\[\/class\])ism",
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"(\[class=(.*?)\](.*?)\[\/class\])ism",
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function ($match) {
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function ($match) {
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return "<span class=\"" . self::cleanCss($match[1]) . "\">" . $match[2] . "</span>";
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return "<span class=\"" . HTML::sanitizeCSS($match[1]) . "\">" . $match[2] . "</span>";
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},
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},
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$text
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$text
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);
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);
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674
src/Content/Text/HTML.php
Normal file
674
src/Content/Text/HTML.php
Normal file
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@ -0,0 +1,674 @@
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<?php
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/**
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* @file src/Content/Text/HTML.php
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*/
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namespace Friendica\Content\Text;
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use DOMDocument;
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use DOMXPath;
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use Friendica\Core\Addon;
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use Friendica\Util\Network;
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use Friendica\Util\XML;
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class HTML
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{
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public static function sanitizeCSS($input)
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{
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$cleaned = "";
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$input = strtolower($input);
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for ($i = 0; $i < strlen($input); $i++) {
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$char = substr($input, $i, 1);
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if (($char >= "a") && ($char <= "z")) {
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$cleaned .= $char;
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}
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if (!(strpos(" #;:0123456789-_.%", $char) === false)) {
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$cleaned .= $char;
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}
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}
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return $cleaned;
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}
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private static function tagToBBCode(DOMDocument $doc, $tag, $attributes, $startbb, $endbb)
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{
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do {
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$done = self::tagToBBCodeSub($doc, $tag, $attributes, $startbb, $endbb);
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} while ($done);
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}
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private static function tagToBBCodeSub(DOMDocument $doc, $tag, $attributes, $startbb, $endbb)
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{
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$savestart = str_replace('$', '\x01', $startbb);
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$replace = false;
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$xpath = new DOMXPath($doc);
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$list = $xpath->query("//" . $tag);
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foreach ($list as $node) {
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$attr = [];
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if ($node->attributes->length) {
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foreach ($node->attributes as $attribute) {
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$attr[$attribute->name] = $attribute->value;
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}
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}
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$replace = true;
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$startbb = $savestart;
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$i = 0;
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foreach ($attributes as $attribute => $value) {
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$startbb = str_replace('\x01' . ++$i, '$1', $startbb);
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if (strpos('*' . $startbb, '$1') > 0) {
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if ($replace && (@$attr[$attribute] != '')) {
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$startbb = preg_replace($value, $startbb, $attr[$attribute], -1, $count);
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// If nothing could be changed
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if ($count == 0) {
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$replace = false;
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}
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} else {
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$replace = false;
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}
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} else {
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if (@$attr[$attribute] != $value) {
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$replace = false;
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}
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}
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}
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if ($replace) {
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$StartCode = $doc->createTextNode($startbb);
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$EndCode = $doc->createTextNode($endbb);
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$node->parentNode->insertBefore($StartCode, $node);
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if ($node->hasChildNodes()) {
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foreach ($node->childNodes as $child) {
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$newNode = $child->cloneNode(true);
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$node->parentNode->insertBefore($newNode, $node);
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}
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}
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$node->parentNode->insertBefore($EndCode, $node);
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$node->parentNode->removeChild($node);
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}
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}
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return $replace;
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}
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/**
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* Made by: ike@piratenpartei.de
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* Originally made for the syncom project: http://wiki.piratenpartei.de/Syncom
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* https://github.com/annando/Syncom
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*
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* @brief Converter for HTML to BBCode
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* @param string $message
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* @param string $basepath
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* @return string
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*/
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public static function toBBCode($message, $basepath = '')
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{
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$message = str_replace("\r", "", $message);
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// Removing code blocks before the whitespace removal processing below
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$codeblocks = [];
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$message = preg_replace_callback(
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'#<pre><code(?: class="([^"]*)")?>(.*)</code></pre>#iUs',
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function ($matches) use (&$codeblocks) {
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$return = '[codeblock-' . count($codeblocks) . ']';
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$prefix = '[code]';
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if ($matches[1] != '') {
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$prefix = '[code=' . $matches[1] . ']';
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}
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$codeblocks[] = $prefix . trim($matches[2]) . '[/code]';
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return $return;
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},
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$message
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);
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$message = str_replace(
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[
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"<li><p>",
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"</p></li>",
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], [
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"<li>",
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"</li>",
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], $message
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);
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// remove namespaces
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$message = preg_replace('=<(\w+):(.+?)>=', '<removeme>', $message);
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$message = preg_replace('=</(\w+):(.+?)>=', '</removeme>', $message);
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$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($message);
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XML::deleteNode($doc, 'style');
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XML::deleteNode($doc, 'head');
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XML::deleteNode($doc, 'title');
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XML::deleteNode($doc, 'meta');
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XML::deleteNode($doc, 'xml');
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XML::deleteNode($doc, 'removeme');
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$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(["\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"], ["<", ">", "<br />", " ", ""], $message);
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$message = preg_replace('= [\s]*=i', " ", $message);
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@$doc->loadHTML($message);
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self::tagToBBCode($doc, 'html', [], "", "");
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self::tagToBBCode($doc, 'body', [], "", "");
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// Outlook-Quote - Variant 1
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self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal', 'style' => 'margin-left:35.4pt'], '[quote]', '[/quote]');
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// Outlook-Quote - Variant 2
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self::tagToBBCode($doc, 'div', ['style' => 'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'],
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'[quote]', '[/quote]');
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// MyBB-Stuff
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self::tagToBBCode($doc, 'span', ['style' => 'text-decoration: underline;'], '[u]', '[/u]');
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self::tagToBBCode($doc, 'span', ['style' => 'font-style: italic;'], '[i]', '[/i]');
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self::tagToBBCode($doc, 'span', ['style' => 'font-weight: bold;'], '[b]', '[/b]');
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/* self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[font=$1][size=$2][color=$3]', '[/color][/size][/font]');
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self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[size=$1][color=$2]', '[/color][/size]');
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self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(.+)/'), '[font=$1][size=$2]', '[/size][/font]');
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self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'color'=>'/(.+)/'), '[font=$1][color=$3]', '[/color][/font]');
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self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/'), '[font=$1]', '[/font]');
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self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/'), '[size=$1]', '[/size]');
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self::node2BBCode($doc, 'font', array('color'=>'/(.+)/'), '[color=$1]', '[/color]');
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*/
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// Untested
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//self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*font-family:\s*(.+?)[,;].*color:\s*(.+?)[,;].*/'), '[size=$1][font=$2][color=$3]', '[/color][/font][/size]');
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//self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(\d+)[,;].*/'), '[size=$1]', '[/size]');
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//self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*/'), '[size=$1]', '[/size]');
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self::tagToBBCode($doc, 'span', ['style' => '/.*color:\s*(.+?)[,;].*/'], '[color="$1"]', '[/color]');
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//self::node2BBCode($doc, 'span', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
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//self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)pt.*/'), '[font=$1][size=$2]', '[/size][/font]');
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//self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)px.*/'), '[font=$1][size=$2]', '[/size][/font]');
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//self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
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// Importing the classes - interesting for importing of posts from third party networks that were exported from friendica
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// Test
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//self::node2BBCode($doc, 'span', array('class'=>'/([\w ]+)/'), '[class=$1]', '[/class]');
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self::tagToBBCode($doc, 'span', ['class' => 'type-link'], '[class=type-link]', '[/class]');
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self::tagToBBCode($doc, 'span', ['class' => 'type-video'], '[class=type-video]', '[/class]');
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self::tagToBBCode($doc, 'strong', [], '[b]', '[/b]');
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self::tagToBBCode($doc, 'em', [], '[i]', '[/i]');
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self::tagToBBCode($doc, 'b', [], '[b]', '[/b]');
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self::tagToBBCode($doc, 'i', [], '[i]', '[/i]');
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self::tagToBBCode($doc, 'u', [], '[u]', '[/u]');
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self::tagToBBCode($doc, 'big', [], "[size=large]", "[/size]");
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self::tagToBBCode($doc, 'small', [], "[size=small]", "[/size]");
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self::tagToBBCode($doc, 'blockquote', [], '[quote]', '[/quote]');
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self::tagToBBCode($doc, 'br', [], "\n", '');
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self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal'], "\n", "");
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self::tagToBBCode($doc, 'div', ['class' => 'MsoNormal'], "\r", "");
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self::tagToBBCode($doc, 'span', [], "", "");
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self::tagToBBCode($doc, 'span', [], "", "");
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self::tagToBBCode($doc, 'pre', [], "", "");
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self::tagToBBCode($doc, 'div', [], "\r", "\r");
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self::tagToBBCode($doc, 'p', [], "\n", "\n");
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self::tagToBBCode($doc, 'ul', [], "[list]", "[/list]");
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self::tagToBBCode($doc, 'ol', [], "[list=1]", "[/list]");
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self::tagToBBCode($doc, 'li', [], "[*]", "");
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self::tagToBBCode($doc, 'hr', [], "[hr]", "");
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self::tagToBBCode($doc, 'table', [], "", "");
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self::tagToBBCode($doc, 'tr', [], "\n", "");
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self::tagToBBCode($doc, 'td', [], "\t", "");
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//self::node2BBCode($doc, 'table', array(), "[table]", "[/table]");
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//self::node2BBCode($doc, 'th', array(), "[th]", "[/th]");
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//self::node2BBCode($doc, 'tr', array(), "[tr]", "[/tr]");
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//self::node2BBCode($doc, 'td', array(), "[td]", "[/td]");
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//self::node2BBCode($doc, 'h1', array(), "\n\n[size=xx-large][b]", "[/b][/size]\n");
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//self::node2BBCode($doc, 'h2', array(), "\n\n[size=x-large][b]", "[/b][/size]\n");
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//self::node2BBCode($doc, 'h3', array(), "\n\n[size=large][b]", "[/b][/size]\n");
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//self::node2BBCode($doc, 'h4', array(), "\n\n[size=medium][b]", "[/b][/size]\n");
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//self::node2BBCode($doc, 'h5', array(), "\n\n[size=small][b]", "[/b][/size]\n");
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//self::node2BBCode($doc, 'h6', array(), "\n\n[size=x-small][b]", "[/b][/size]\n");
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self::tagToBBCode($doc, 'h1', [], "[h1]", "[/h1]");
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self::tagToBBCode($doc, 'h2', [], "[h2]", "[/h2]");
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self::tagToBBCode($doc, 'h3', [], "[h3]", "[/h3]");
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self::tagToBBCode($doc, 'h4', [], "[h4]", "[/h4]");
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self::tagToBBCode($doc, 'h5', [], "[h5]", "[/h5]");
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self::tagToBBCode($doc, 'h6', [], "[h6]", "[/h6]");
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self::tagToBBCode($doc, 'a', ['href' => '/mailto:(.+)/'], '[mail=$1]', '[/mail]');
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self::tagToBBCode($doc, 'a', ['href' => '/(.+)/'], '[url=$1]', '[/url]');
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self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'width' => '/(\d+)/', 'height' => '/(\d+)/'], '[img=$2x$3]$1',
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'[/img]');
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||||||
|
self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], '[img]$1', '[/img]');
|
||||||
|
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'video', ['src' => '/(.+)/'], '[video]$1', '[/video]');
|
||||||
|
self::tagToBBCode($doc, 'audio', ['src' => '/(.+)/'], '[audio]$1', '[/audio]');
|
||||||
|
self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], '[iframe]$1', '[/iframe]');
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'key', [], '[code]', '[/code]');
|
||||||
|
self::tagToBBCode($doc, 'code', [], '[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(" ", " ", $message);
|
||||||
|
|
||||||
|
// removing multiple DIVs
|
||||||
|
$message = preg_replace('=\r *\r=i', "\n", $message);
|
||||||
|
$message = str_replace("\r", "\n", $message);
|
||||||
|
|
||||||
|
Addon::callHooks('html2bbcode', $message);
|
||||||
|
|
||||||
|
$message = strip_tags($message);
|
||||||
|
|
||||||
|
$message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
|
||||||
|
|
||||||
|
$message = str_replace(["<"], ["<"], $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(
|
||||||
|
[
|
||||||
|
"[/size]\n\n",
|
||||||
|
"\n[hr]",
|
||||||
|
"[hr]\n",
|
||||||
|
"\n[list",
|
||||||
|
"[/list]\n",
|
||||||
|
"\n[/",
|
||||||
|
"[list]\n",
|
||||||
|
"[list=1]\n",
|
||||||
|
"\n[*]"],
|
||||||
|
[
|
||||||
|
"[/size]\n",
|
||||||
|
"[hr]",
|
||||||
|
"[hr]",
|
||||||
|
"[list",
|
||||||
|
"[/list]",
|
||||||
|
"[/",
|
||||||
|
"[list]",
|
||||||
|
"[list=1]",
|
||||||
|
"[*]"], $message
|
||||||
|
);
|
||||||
|
} while ($message != $oldmessage);
|
||||||
|
|
||||||
|
$message = str_replace(
|
||||||
|
['[b][b]', '[/b][/b]', '[i][i]', '[/i][/i]'], ['[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);
|
||||||
|
|
||||||
|
if ($basepath != '') {
|
||||||
|
$message = self::qualifyURLs($message, $basepath);
|
||||||
|
}
|
||||||
|
|
||||||
|
return $message;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Sub function to complete incomplete URL
|
||||||
|
*
|
||||||
|
* @param array $matches Result of preg_replace_callback
|
||||||
|
* @param string $basepath Basepath that is used to complete the URL
|
||||||
|
*
|
||||||
|
* @return string The expanded URL
|
||||||
|
*/
|
||||||
|
private static function qualifyURLsSub($matches, $basepath)
|
||||||
|
{
|
||||||
|
$base = parse_url($basepath);
|
||||||
|
unset($base['query']);
|
||||||
|
unset($base['fragment']);
|
||||||
|
|
||||||
|
$link = $matches[0];
|
||||||
|
$url = $matches[1];
|
||||||
|
|
||||||
|
$parts = array_merge($base, parse_url($url));
|
||||||
|
$url2 = Network::unparseURL($parts);
|
||||||
|
|
||||||
|
return str_replace($url, $url2, $link);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* @brief Complete incomplete URLs in BBCode
|
||||||
|
*
|
||||||
|
* @param string $body Body with URLs
|
||||||
|
* @param string $basepath Base path that is used to complete the URL
|
||||||
|
*
|
||||||
|
* @return string Body with expanded URLs
|
||||||
|
*/
|
||||||
|
private static function qualifyURLs($body, $basepath)
|
||||||
|
{
|
||||||
|
$URLSearchString = "^\[\]";
|
||||||
|
|
||||||
|
$matches = ["/\[url\=([$URLSearchString]*)\].*?\[\/url\]/ism",
|
||||||
|
"/\[url\]([$URLSearchString]*)\[\/url\]/ism",
|
||||||
|
"/\[img\=[0-9]*x[0-9]*\](.*?)\[\/img\]/ism",
|
||||||
|
"/\[img\](.*?)\[\/img\]/ism",
|
||||||
|
"/\[zmg\=[0-9]*x[0-9]*\](.*?)\[\/img\]/ism",
|
||||||
|
"/\[zmg\](.*?)\[\/zmg\]/ism",
|
||||||
|
"/\[video\](.*?)\[\/video\]/ism",
|
||||||
|
"/\[audio\](.*?)\[\/audio\]/ism",
|
||||||
|
];
|
||||||
|
|
||||||
|
foreach ($matches as $match) {
|
||||||
|
$body = preg_replace_callback(
|
||||||
|
$match, function ($match) use ($basepath) {
|
||||||
|
return self::qualifyURLsSub($match, $basepath);
|
||||||
|
},
|
||||||
|
$body
|
||||||
|
);
|
||||||
|
}
|
||||||
|
return $body;
|
||||||
|
}
|
||||||
|
|
||||||
|
private static function breakLines($line, $level, $wraplength = 75)
|
||||||
|
{
|
||||||
|
if ($wraplength == 0) {
|
||||||
|
$wraplength = 2000000;
|
||||||
|
}
|
||||||
|
|
||||||
|
$wraplen = $wraplength - $level;
|
||||||
|
|
||||||
|
$newlines = [];
|
||||||
|
|
||||||
|
do {
|
||||||
|
$oldline = $line;
|
||||||
|
|
||||||
|
$subline = substr($line, 0, $wraplen);
|
||||||
|
|
||||||
|
$pos = strrpos($subline, ' ');
|
||||||
|
|
||||||
|
if ($pos == 0) {
|
||||||
|
$pos = strpos($line, ' ');
|
||||||
|
}
|
||||||
|
|
||||||
|
if (($pos > 0) && strlen($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) > $wraplen) && !($oldline == $line));
|
||||||
|
|
||||||
|
if ($level > 0) {
|
||||||
|
$line = str_repeat(">", $level) . ' ' . $line;
|
||||||
|
}
|
||||||
|
|
||||||
|
$newlines[] = $line;
|
||||||
|
|
||||||
|
return implode($newlines, "\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
private static function quoteLevel($message, $wraplength = 75)
|
||||||
|
{
|
||||||
|
$lines = explode("\n", $message);
|
||||||
|
|
||||||
|
$newlines = [];
|
||||||
|
$level = 0;
|
||||||
|
foreach ($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 || ($line != '')) {
|
||||||
|
$newlines[] = self::breakLines($line, $currlevel, $wraplength);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return implode($newlines, "\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
private static function collectURLs($message)
|
||||||
|
{
|
||||||
|
$pattern = '/<a.*?href="(.*?)".*?>(.*?)<\/a>/is';
|
||||||
|
preg_match_all($pattern, $message, $result, PREG_SET_ORDER);
|
||||||
|
|
||||||
|
$urls = [];
|
||||||
|
foreach ($result as $treffer) {
|
||||||
|
$ignore = false;
|
||||||
|
|
||||||
|
// A list of some links that should be ignored
|
||||||
|
$list = ["/user/", "/tag/", "/group/", "/profile/", "/search?search=", "/search?tag=", "mailto:", "/u/", "/node/",
|
||||||
|
"//facebook.com/profile.php?id=", "//plus.google.com/", "//twitter.com/"];
|
||||||
|
foreach ($list as $listitem) {
|
||||||
|
if (strpos($treffer[1], $listitem) !== false) {
|
||||||
|
$ignore = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((strpos($treffer[1], "//twitter.com/") !== false) && (strpos($treffer[1], "/status/") !== false)) {
|
||||||
|
$ignore = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((strpos($treffer[1], "//plus.google.com/") !== false) && (strpos($treffer[1], "/posts") !== false)) {
|
||||||
|
$ignore = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if ((strpos($treffer[1], "//plus.google.com/") !== false) && (strpos($treffer[1], "/photos") !== false)) {
|
||||||
|
$ignore = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (!$ignore) {
|
||||||
|
$urls[$treffer[1]] = $treffer[1];
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
return $urls;
|
||||||
|
}
|
||||||
|
|
||||||
|
public static function toPlaintext($html, $wraplength = 75, $compact = false)
|
||||||
|
{
|
||||||
|
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(["\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"], ["<", ">", "<br>", " ", ""], $message);
|
||||||
|
$message = preg_replace('= [\s]*=i', " ", $message);
|
||||||
|
|
||||||
|
// Collecting all links
|
||||||
|
$urls = self::collectURLs($message);
|
||||||
|
|
||||||
|
@$doc->loadHTML($message);
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'html', [], '', '');
|
||||||
|
self::tagToBBCode($doc, 'body', [], '', '');
|
||||||
|
|
||||||
|
// MyBB-Auszeichnungen
|
||||||
|
/*
|
||||||
|
self::node2BBCode($doc, 'span', array('style'=>'text-decoration: underline;'), '_', '_');
|
||||||
|
self::node2BBCode($doc, 'span', array('style'=>'font-style: italic;'), '/', '/');
|
||||||
|
self::node2BBCode($doc, 'span', array('style'=>'font-weight: bold;'), '*', '*');
|
||||||
|
|
||||||
|
self::node2BBCode($doc, 'strong', array(), '*', '*');
|
||||||
|
self::node2BBCode($doc, 'b', array(), '*', '*');
|
||||||
|
self::node2BBCode($doc, 'i', array(), '/', '/');
|
||||||
|
self::node2BBCode($doc, 'u', array(), '_', '_');
|
||||||
|
*/
|
||||||
|
|
||||||
|
if ($compact) {
|
||||||
|
self::tagToBBCode($doc, 'blockquote', [], "»", "«");
|
||||||
|
} else {
|
||||||
|
self::tagToBBCode($doc, 'blockquote', [], '[quote]', "[/quote]\n");
|
||||||
|
}
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'br', [], "\n", '');
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'span', [], "", "");
|
||||||
|
self::tagToBBCode($doc, 'pre', [], "", "");
|
||||||
|
self::tagToBBCode($doc, 'div', [], "\r", "\r");
|
||||||
|
self::tagToBBCode($doc, 'p', [], "\n", "\n");
|
||||||
|
|
||||||
|
//self::node2BBCode($doc, 'ul', array(), "\n[list]", "[/list]\n");
|
||||||
|
//self::node2BBCode($doc, 'ol', array(), "\n[list=1]", "[/list]\n");
|
||||||
|
self::tagToBBCode($doc, 'li', [], "\n* ", "\n");
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'hr', [], "\n" . str_repeat("-", 70) . "\n", "");
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'tr', [], "\n", "");
|
||||||
|
self::tagToBBCode($doc, 'td', [], "\t", "");
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'h1', [], "\n\n*", "*\n");
|
||||||
|
self::tagToBBCode($doc, 'h2', [], "\n\n*", "*\n");
|
||||||
|
self::tagToBBCode($doc, 'h3', [], "\n\n*", "*\n");
|
||||||
|
self::tagToBBCode($doc, 'h4', [], "\n\n*", "*\n");
|
||||||
|
self::tagToBBCode($doc, 'h5', [], "\n\n*", "*\n");
|
||||||
|
self::tagToBBCode($doc, 'h6', [], "\n\n*", "*\n");
|
||||||
|
|
||||||
|
// Problem: there is no reliable way to detect if it is a link to a tag or profile
|
||||||
|
//self::node2BBCode($doc, 'a', array('href'=>'/(.+)/'), ' $1 ', ' ', true);
|
||||||
|
//self::node2BBCode($doc, 'a', array('href'=>'/(.+)/', 'rel'=>'oembed'), ' $1 ', '', true);
|
||||||
|
//self::node2BBCode($doc, 'img', array('alt'=>'/(.+)/'), '$1', '');
|
||||||
|
//self::node2BBCode($doc, 'img', array('title'=>'/(.+)/'), '$1', '');
|
||||||
|
//self::node2BBCode($doc, 'img', array(), '', '');
|
||||||
|
if (!$compact) {
|
||||||
|
self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], ' [img]$1', '[/img] ');
|
||||||
|
} else {
|
||||||
|
self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], ' ', ' ');
|
||||||
|
}
|
||||||
|
|
||||||
|
self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], ' $1 ', '');
|
||||||
|
|
||||||
|
$message = $doc->saveHTML();
|
||||||
|
|
||||||
|
if (!$compact) {
|
||||||
|
$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(" ", " ", $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');
|
||||||
|
|
||||||
|
if (!$compact && ($message != '')) {
|
||||||
|
foreach ($urls as $id => $url) {
|
||||||
|
if ($url != '' && strpos($message, $url) === false) {
|
||||||
|
$message .= "\n" . $url . ' ';
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
$message = str_replace("\n«", "«\n", $message);
|
||||||
|
$message = str_replace("»\n", "\n»", $message);
|
||||||
|
|
||||||
|
do {
|
||||||
|
$oldmessage = $message;
|
||||||
|
$message = str_replace("\n\n\n", "\n\n", $message);
|
||||||
|
} while ($oldmessage != $message);
|
||||||
|
|
||||||
|
$message = self::quoteLevel(trim($message), $wraplength);
|
||||||
|
|
||||||
|
return trim($message);
|
||||||
|
}
|
||||||
|
}
|
||||||
Loading…
Reference in a new issue