<?php
/**
- * @copyright Copyright (C) 2020, Friendica
+ * @copyright Copyright (C) 2010-2021, the Friendica project
*
* @license GNU AGPL version 3 or any later version
*
use Friendica\DI;
use Friendica\Model\Contact;
use Friendica\Util\Network;
-use Friendica\Util\Proxy as ProxyUtils;
use Friendica\Util\Strings;
use Friendica\Util\XML;
use League\HTMLToMarkdown\HtmlConverter;
class HTML
{
- public static function sanitizeCSS($input)
- {
- $cleaned = "";
-
- $input = strtolower($input);
-
- for ($i = 0; $i < strlen($input); $i++) {
- $char = substr($input, $i, 1);
-
- if (($char >= "a") && ($char <= "z")) {
- $cleaned .= $char;
- }
-
- if (!(strpos(" #;:0123456789-_.%", $char) === false)) {
- $cleaned .= $char;
- }
- }
-
- return $cleaned;
- }
-
/**
* Search all instances of a specific HTML tag node in the provided DOM document and replaces them with BBCode text nodes.
*
*/
public static function toBBCode($message, $basepath = '')
{
+ DI::profiler()->startRecording('rendering');
$message = str_replace("\r", "", $message);
- // Removing code blocks before the whitespace removal processing below
- $codeblocks = [];
- $message = preg_replace_callback(
- '#<pre><code(?: class="language-([^"]*)")?>(.*)</code></pre>#iUs',
- function ($matches) use (&$codeblocks) {
- $return = '[codeblock-' . count($codeblocks) . ']';
-
- $prefix = '[code]';
- if ($matches[1] != '') {
- $prefix = '[code=' . $matches[1] . ']';
- }
-
- $codeblocks[] = $prefix . PHP_EOL . trim($matches[2]) . PHP_EOL . '[/code]';
- return $return;
- },
- $message
- );
-
- $message = str_replace(
- [
- "<li><p>",
- "</p></li>",
- ],
- [
- "<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, LIBXML_HTML_NODEFDTD);
-
- 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) {
- // Ensure to escape unescaped & - they will otherwise raise a warning
- $safe_value = preg_replace('/&(?!\w+;)/', '&', $node->nodeValue);
- $node->nodeValue = str_replace("\n", "\r", $safe_value);
- }
-
- $message = $doc->saveHTML();
- $message = str_replace(["\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"], ["<", ">", "<br />", " ", ""], $message);
- $message = preg_replace('= [\s]*=i', " ", $message);
-
- @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD);
-
- self::tagToBBCode($doc, 'html', [], "", "");
- self::tagToBBCode($doc, 'body', [], "", "");
-
- // Outlook-Quote - Variant 1
- self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal', 'style' => 'margin-left:35.4pt'], '[quote]', '[/quote]');
-
- // Outlook-Quote - Variant 2
- self::tagToBBCode(
- $doc,
- 'div',
- ['style' => 'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'],
- '[quote]',
- '[/quote]'
- );
-
- // MyBB-Stuff
- self::tagToBBCode($doc, 'span', ['style' => 'text-decoration: underline;'], '[u]', '[/u]');
- self::tagToBBCode($doc, 'span', ['style' => 'font-style: italic;'], '[i]', '[/i]');
- self::tagToBBCode($doc, 'span', ['style' => 'font-weight: bold;'], '[b]', '[/b]');
-
- /* self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[font=$1][size=$2][color=$3]', '[/color][/size][/font]');
- self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[size=$1][color=$2]', '[/color][/size]');
- self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(.+)/'), '[font=$1][size=$2]', '[/size][/font]');
- self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'color'=>'/(.+)/'), '[font=$1][color=$3]', '[/color][/font]');
- self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/'), '[font=$1]', '[/font]');
- self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/'), '[size=$1]', '[/size]');
- self::node2BBCode($doc, 'font', array('color'=>'/(.+)/'), '[color=$1]', '[/color]');
- */
- // Untested
- //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*font-family:\s*(.+?)[,;].*color:\s*(.+?)[,;].*/'), '[size=$1][font=$2][color=$3]', '[/color][/font][/size]');
- //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(\d+)[,;].*/'), '[size=$1]', '[/size]');
- //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*/'), '[size=$1]', '[/size]');
-
- self::tagToBBCode($doc, 'span', ['style' => '/.*color:\s*(.+?)[,;].*/'], '[color="$1"]', '[/color]');
-
- //self::node2BBCode($doc, 'span', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
- //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)pt.*/'), '[font=$1][size=$2]', '[/size][/font]');
- //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)px.*/'), '[font=$1][size=$2]', '[/size][/font]');
- //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
- // Importing the classes - interesting for importing of posts from third party networks that were exported from friendica
- // Test
- //self::node2BBCode($doc, 'span', array('class'=>'/([\w ]+)/'), '[class=$1]', '[/class]');
- self::tagToBBCode($doc, 'span', ['class' => 'type-link'], '[class=type-link]', '[/class]');
- self::tagToBBCode($doc, 'span', ['class' => 'type-video'], '[class=type-video]', '[/class]');
-
- self::tagToBBCode($doc, 'strong', [], '[b]', '[/b]');
- self::tagToBBCode($doc, 'em', [], '[i]', '[/i]');
- self::tagToBBCode($doc, 'b', [], '[b]', '[/b]');
- self::tagToBBCode($doc, 'i', [], '[i]', '[/i]');
- self::tagToBBCode($doc, 'u', [], '[u]', '[/u]');
- self::tagToBBCode($doc, 's', [], '[s]', '[/s]');
- self::tagToBBCode($doc, 'del', [], '[s]', '[/s]');
- self::tagToBBCode($doc, 'strike', [], '[s]', '[/s]');
-
- self::tagToBBCode($doc, 'big', [], "[size=large]", "[/size]");
- self::tagToBBCode($doc, 'small', [], "[size=small]", "[/size]");
-
- self::tagToBBCode($doc, 'blockquote', [], '[quote]', '[/quote]');
-
- self::tagToBBCode($doc, 'br', [], "\n", '');
-
- self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal'], "\n", "");
- self::tagToBBCode($doc, 'div', ['class' => 'MsoNormal'], "\r", "");
-
- self::tagToBBCode($doc, 'span', [], "", "");
-
- self::tagToBBCode($doc, 'span', [], "", "");
- self::tagToBBCode($doc, 'pre', [], "", "");
-
- self::tagToBBCode($doc, 'div', [], "\r", "\r");
- self::tagToBBCode($doc, 'p', [], "\n", "\n");
-
- self::tagToBBCode($doc, 'ul', [], "[list]", "[/list]");
- self::tagToBBCode($doc, 'ol', [], "[list=1]", "[/list]");
- self::tagToBBCode($doc, 'li', [], "[*]", "");
-
- self::tagToBBCode($doc, 'hr', [], "[hr]", "");
-
- self::tagToBBCode($doc, 'table', [], "[table]", "[/table]");
- self::tagToBBCode($doc, 'th', [], "[th]", "[/th]");
- self::tagToBBCode($doc, 'tr', [], "[tr]", "[/tr]");
- self::tagToBBCode($doc, 'td', [], "[td]", "[/td]");
-
- self::tagToBBCode($doc, 'h1', [], "[h1]", "[/h1]");
- self::tagToBBCode($doc, 'h2', [], "[h2]", "[/h2]");
- self::tagToBBCode($doc, 'h3', [], "[h3]", "[/h3]");
- self::tagToBBCode($doc, 'h4', [], "[h4]", "[/h4]");
- self::tagToBBCode($doc, 'h5', [], "[h5]", "[/h5]");
- self::tagToBBCode($doc, 'h6', [], "[h6]", "[/h6]");
+ $message = Strings::performWithEscapedBlocks($message, '#<pre><code.*</code></pre>#iUs', function ($message) {
+ $message = str_replace(
+ [
+ "<li><p>",
+ "</p></li>",
+ ],
+ [
+ "<li>",
+ "</li>",
+ ],
+ $message
+ );
- self::tagToBBCode($doc, 'a', ['href' => '/mailto:(.+)/'], '[mail=$1]', '[/mail]');
- self::tagToBBCode($doc, 'a', ['href' => '/(.+)/'], '[url=$1]', '[/url]');
+ // remove namespaces
+ $message = preg_replace('=<(\w+):(.+?)>=', '<removeme>', $message);
+ $message = preg_replace('=</(\w+):(.+?)>=', '</removeme>', $message);
- self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'alt' => '/(.+)/'], '[img=$1]$2', '[/img]', true);
- self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'width' => '/(\d+)/', 'height' => '/(\d+)/'], '[img=$2x$3]$1', '[/img]', true);
- self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], '[img]$1', '[/img]', true);
+ $doc = new DOMDocument();
+ $doc->preserveWhiteSpace = false;
+ $message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
- self::tagToBBCode($doc, 'video', ['src' => '/(.+)/'], '[video]$1', '[/video]', true);
- self::tagToBBCode($doc, 'audio', ['src' => '/(.+)/'], '[audio]$1', '[/audio]', true);
- self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], '[iframe]$1', '[/iframe]', true);
+ if (empty($message)) {
+ return '';
+ }
- self::tagToBBCode($doc, 'key', [], '[code]', '[/code]');
- self::tagToBBCode($doc, 'code', [], '[code]', '[/code]');
+ @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD);
+
+ 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) {
+ // Ensure to escape unescaped & - they will otherwise raise a warning
+ $safe_value = preg_replace('/&(?!\w+;)/', '&', $node->nodeValue);
+ $node->nodeValue = str_replace("\n", "\r", $safe_value);
+ }
- $message = $doc->saveHTML();
+ $message = $doc->saveHTML();
+ $message = str_replace(["\n<", ">\n", "\r", "\n", "\xC3\x82\xC2\xA0"], ["<", ">", "<br />", " ", ""], $message);
+ $message = preg_replace('= [\s]*=i', " ", $message);
- // I'm removing something really disturbing
- // Don't know exactly what it is
- $message = str_replace(chr(194) . chr(160), ' ', $message);
+ if (empty($message)) {
+ return '';
+ }
- $message = str_replace(" ", " ", $message);
+ @$doc->loadHTML($message, LIBXML_HTML_NODEFDTD);
- // removing multiple DIVs
- $message = preg_replace('=\r *\r=i', "\n", $message);
- $message = str_replace("\r", "\n", $message);
+ self::tagToBBCode($doc, 'html', [], "", "");
+ self::tagToBBCode($doc, 'body', [], "", "");
- Hook::callAll('html2bbcode', $message);
+ // Outlook-Quote - Variant 1
+ self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal', 'style' => 'margin-left:35.4pt'], '[quote]', '[/quote]');
- $message = strip_tags($message);
+ // Outlook-Quote - Variant 2
+ self::tagToBBCode(
+ $doc,
+ 'div',
+ ['style' => 'border:none;border-left:solid blue 1.5pt;padding:0cm 0cm 0cm 4.0pt'],
+ '[quote]',
+ '[/quote]'
+ );
- $message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
+ // MyBB-Stuff
+ self::tagToBBCode($doc, 'span', ['style' => 'text-decoration: underline;'], '[u]', '[/u]');
+ self::tagToBBCode($doc, 'span', ['style' => 'font-style: italic;'], '[i]', '[/i]');
+ self::tagToBBCode($doc, 'span', ['style' => 'font-weight: bold;'], '[b]', '[/b]');
- // remove quotes if they don't make sense
- $message = preg_replace('=\[/quote\][\s]*\[quote\]=i', "\n", $message);
+ /* self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[font=$1][size=$2][color=$3]', '[/color][/size][/font]');
+ self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/', 'color'=>'/(.+)/'), '[size=$1][color=$2]', '[/color][/size]');
+ self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'size'=>'/(.+)/'), '[font=$1][size=$2]', '[/size][/font]');
+ self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/', 'color'=>'/(.+)/'), '[font=$1][color=$3]', '[/color][/font]');
+ self::node2BBCode($doc, 'font', array('face'=>'/([\w ]+)/'), '[font=$1]', '[/font]');
+ self::node2BBCode($doc, 'font', array('size'=>'/(\d+)/'), '[size=$1]', '[/size]');
+ self::node2BBCode($doc, 'font', array('color'=>'/(.+)/'), '[color=$1]', '[/color]');
+ */
+ // Untested
+ //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*font-family:\s*(.+?)[,;].*color:\s*(.+?)[,;].*/'), '[size=$1][font=$2][color=$3]', '[/color][/font][/size]');
+ //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(\d+)[,;].*/'), '[size=$1]', '[/size]');
+ //self::node2BBCode($doc, 'span', array('style'=>'/.*font-size:\s*(.+?)[,;].*/'), '[size=$1]', '[/size]');
- $message = preg_replace('=\[quote\]\s*=i', "[quote]", $message);
- $message = preg_replace('=\s*\[/quote\]=i', "[/quote]", $message);
+ self::tagToBBCode($doc, 'span', ['style' => '/.*color:\s*(.+?)[,;].*/'], '[color="$1"]', '[/color]');
- do {
- $oldmessage = $message;
- $message = str_replace("\n \n", "\n\n", $message);
- } while ($oldmessage != $message);
+ //self::node2BBCode($doc, 'span', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
+ //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)pt.*/'), '[font=$1][size=$2]', '[/size][/font]');
+ //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*font-size:\s*(\d+?)px.*/'), '[font=$1][size=$2]', '[/size][/font]');
+ //self::node2BBCode($doc, 'div', array('style'=>'/.*font-family:\s*(.+?)[,;].*/'), '[font=$1]', '[/font]');
+ // Importing the classes - interesting for importing of posts from third party networks that were exported from friendica
+ // Test
+ //self::node2BBCode($doc, 'span', array('class'=>'/([\w ]+)/'), '[class=$1]', '[/class]');
+ self::tagToBBCode($doc, 'span', ['class' => 'type-link'], '[class=type-link]', '[/class]');
+ self::tagToBBCode($doc, 'span', ['class' => 'type-video'], '[class=type-video]', '[/class]');
- do {
- $oldmessage = $message;
- $message = str_replace("\n\n\n", "\n\n", $message);
- } while ($oldmessage != $message);
+ self::tagToBBCode($doc, 'strong', [], '[b]', '[/b]');
+ self::tagToBBCode($doc, 'em', [], '[i]', '[/i]');
+ self::tagToBBCode($doc, 'b', [], '[b]', '[/b]');
+ self::tagToBBCode($doc, 'i', [], '[i]', '[/i]');
+ self::tagToBBCode($doc, 'u', [], '[u]', '[/u]');
+ self::tagToBBCode($doc, 's', [], '[s]', '[/s]');
+ self::tagToBBCode($doc, 'del', [], '[s]', '[/s]');
+ self::tagToBBCode($doc, 'strike', [], '[s]', '[/s]');
+
+ self::tagToBBCode($doc, 'big', [], "[size=large]", "[/size]");
+ self::tagToBBCode($doc, 'small', [], "[size=small]", "[/size]");
+
+ self::tagToBBCode($doc, 'blockquote', [], '[quote]', '[/quote]');
+
+ self::tagToBBCode($doc, 'br', [], "\n", '');
+
+ self::tagToBBCode($doc, 'p', ['class' => 'MsoNormal'], "\n", "");
+ self::tagToBBCode($doc, 'div', ['class' => 'MsoNormal'], "\r", "");
+
+ self::tagToBBCode($doc, 'span', [], "", "");
+
+ self::tagToBBCode($doc, 'span', [], "", "");
+ self::tagToBBCode($doc, 'pre', [], "", "");
+
+ self::tagToBBCode($doc, 'div', [], "\r", "\r");
+ self::tagToBBCode($doc, 'p', [], "\n", "\n");
+
+ self::tagToBBCode($doc, 'ul', [], "[list]", "[/list]");
+ self::tagToBBCode($doc, 'ol', [], "[list=1]", "[/list]");
+ self::tagToBBCode($doc, 'li', [], "[*]", "");
+
+ self::tagToBBCode($doc, 'hr', [], "[hr]", "");
+
+ self::tagToBBCode($doc, 'table', [], "[table]", "[/table]");
+ self::tagToBBCode($doc, 'th', [], "[th]", "[/th]");
+ self::tagToBBCode($doc, 'tr', [], "[tr]", "[/tr]");
+ self::tagToBBCode($doc, 'td', [], "[td]", "[/td]");
+
+ self::tagToBBCode($doc, 'h1', [], "[h1]", "[/h1]");
+ self::tagToBBCode($doc, 'h2', [], "[h2]", "[/h2]");
+ self::tagToBBCode($doc, 'h3', [], "[h3]", "[/h3]");
+ self::tagToBBCode($doc, 'h4', [], "[h4]", "[/h4]");
+ self::tagToBBCode($doc, 'h5', [], "[h5]", "[/h5]");
+ self::tagToBBCode($doc, 'h6', [], "[h6]", "[/h6]");
+
+ self::tagToBBCode($doc, 'a', ['href' => '/mailto:(.+)/'], '[mail=$1]', '[/mail]');
+ self::tagToBBCode($doc, 'a', ['href' => '/(.+)/'], '[url=$1]', '[/url]');
+
+ self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'alt' => '/(.+)/'], '[img=$1]$2', '[/img]', true);
+ self::tagToBBCode($doc, 'img', ['src' => '/(.+)/', 'width' => '/(\d+)/', 'height' => '/(\d+)/'], '[img=$2x$3]$1', '[/img]', true);
+ self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], '[img]$1', '[/img]', true);
+
+
+ self::tagToBBCode($doc, 'video', ['src' => '/(.+)/'], '[video]$1', '[/video]', true);
+ self::tagToBBCode($doc, 'audio', ['src' => '/(.+)/'], '[audio]$1', '[/audio]', true);
+ // Backward compatibility, [iframe] support has been removed in version 2020.12
+ self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], '[url]$1', '[/url]', true);
+
+ self::tagToBBCode($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);
+
+ Hook::callAll('html2bbcode', $message);
+
+ $message = strip_tags($message);
+
+ $message = html_entity_decode($message, ENT_QUOTES, 'UTF-8');
+
+ // 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);
- 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]",
- "[*]"],
+ ['[b][b]', '[/b][/b]', '[i][i]', '[/i][/i]'],
+ ['[b]', '[/b]', '[i]', '[/i]'],
$message
);
- } while ($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);
- // Handling Yahoo style of mails
- $message = str_replace('[hr][b]From:[/b]', '[quote][b]From:[/b]', $message);
+ return $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]];
+ '#<pre><code(?: class="language-([^"]*)")?>(.*)</code></pre>#iUs',
+ function ($matches) {
+ $prefix = '[code]';
+ if ($matches[1] != '') {
+ $prefix = '[code=' . $matches[1] . ']';
}
- return $return;
+
+ return $prefix . PHP_EOL . trim($matches[2]) . PHP_EOL . '[/code]';
},
$message
);
$message = self::qualifyURLs($message, $basepath);
}
+ DI::profiler()->stopRecording();
return $message;
}
*/
public static function toPlaintext(string $html, $wraplength = 75, $compact = false)
{
+ DI::profiler()->startRecording('rendering');
$message = str_replace("\r", "", $html);
$doc = new DOMDocument();
$message = mb_convert_encoding($message, 'HTML-ENTITIES', "UTF-8");
+ if (empty($message)) {
+ DI::profiler()->stopRecording();
+ return '';
+ }
+
@$doc->loadHTML($message, LIBXML_HTML_NODEFDTD);
$message = $doc->saveHTML();
// Collecting all links
$urls = self::collectURLs($message);
+ if (empty($message)) {
+ DI::profiler()->stopRecording();
+ return '';
+ }
+
@$doc->loadHTML($message, LIBXML_HTML_NODEFDTD);
self::tagToBBCode($doc, 'html', [], '', '');
self::tagToBBCode($doc, 'img', ['src' => '/(.+)/'], ' ', ' ');
}
+ // Backward compatibility, [iframe] support has been removed in version 2020.12
self::tagToBBCode($doc, 'iframe', ['src' => '/(.+)/'], ' $1 ', '');
$message = $doc->saveHTML();
$message = self::quoteLevel(trim($message), $wraplength);
+ DI::profiler()->stopRecording();
return trim($message);
}
*/
public static function toMarkdown($html)
{
+ DI::profiler()->startRecording('rendering');
$converter = new HtmlConverter(['hard_break' => true]);
$markdown = $converter->convert($html);
+ DI::profiler()->stopRecording();
return $markdown;
}
]);
}
- /**
- * Get html for contact block.
- *
- * @deprecated since version 2019.03
- * @see ContactBlock::getHTML()
- * @return string
- * @throws \Friendica\Network\HTTPException\InternalServerErrorException
- * @throws \ImagickException
- */
- public static function contactBlock()
- {
- $a = DI::app();
-
- return ContactBlock::getHTML($a->profile);
- }
-
/**
* Format contacts as picture links or as text links
*
$redir = false;
if ($redirect) {
- $url = Contact::magicLink($contact['url']);
+ $url = Contact::magicLinkByContact($contact);
if (strpos($url, 'redir/') === 0) {
$sparkle = ' sparkle';
}
'$click' => $contact['click'] ?? '',
'$class' => $class,
'$url' => $url,
- '$photo' => ProxyUtils::proxifyUrl($contact['thumb'], false, ProxyUtils::SIZE_THUMB),
+ '$photo' => Contact::getThumb($contact),
'$name' => $contact['name'],
'title' => $contact['name'] . ' [' . $contact['addr'] . ']',
'$parkle' => $sparkle,
{
return str_replace('&', '&', $s);
}
+
+ /**
+ * Clean an HTML text for potentially harmful code
+ *
+ * @param string $text
+ * @param array $allowedIframeDomains List of allowed iframe source domains without the scheme
+ * @return string
+ */
+ public static function purify(string $text, array $allowedIframeDomains = []): string
+ {
+ // Allows cid: URL scheme
+ \HTMLPurifier_URISchemeRegistry::instance()->register('cid', new HTMLPurifier_URIScheme_cid());
+
+ $config = \HTMLPurifier_HTML5Config::createDefault();
+ $config->set('HTML.Doctype', 'HTML5');
+
+ // Used to remove iframe with src attribute filtered out
+ $config->set('AutoFormat.RemoveEmpty', true);
+
+ $config->set('HTML.SafeIframe', true);
+
+ array_walk($allowedIframeDomains, function (&$domain) {
+ // Allow the domain and all its eventual sub-domains
+ $domain = '(?:(?!-)[A-Za-z0-9-]{1,63}(?<!-)\.)*' . preg_quote(trim($domain, '/'), '%');
+ });
+
+ $config->set('URI.SafeIframeRegexp',
+ '%^https://(?:
+ ' . implode('|', $allowedIframeDomains) . '
+ )
+ (?:/|$) # Prevents bogus domains like youtube.com.fake.tld
+ %xi'
+ );
+
+ $config->set('Attr.AllowedRel', [
+ 'noreferrer' => true,
+ 'noopener' => true,
+ ]);
+ $config->set('Attr.AllowedFrameTargets', [
+ '_blank' => true,
+ ]);
+
+ $config->set('AutoFormat.RemoveEmpty.Predicate', [
+ 'colgroup' => [], // |
+ 'th' => [], // |
+ 'td' => [], // |
+ 'iframe' => ['src'], // ↳ Default HTMLPurify values
+ 'i' => ['class'], // Allows forkawesome icons
+ ]);
+
+ // Uncomment to debug HTMLPurifier behavior
+ //$config->set('Core.CollectErrors', true);
+ //$config->set('Core.MaintainLineNumbers', true);
+
+ $HTMLPurifier = new \HTMLPurifier($config);
+
+ $text = $HTMLPurifier->purify($text);
+
+ /** @var \HTMLPurifier_ErrorCollector $errorCollector */
+ // Uncomment to debug HTML Purifier behavior
+ //$errorCollector = $HTMLPurifier->context->get('ErrorCollector');
+ //var_dump($errorCollector->getRaw());
+
+ return $text;
+ }
}
projects / friendica.git / blobdiff