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<?php
namespace Bitrix\Crm\Format;
class TextHelper
{
public static function convertHtmlToBbCode($html)
{
$html = strval($html);
if($html === '')
{
return '';
}
$eventManager = \Bitrix\Main\EventManager::getInstance();
$eventKey = $eventManager->addEventHandlerCompatible("main", "TextParserBeforeTags", array("\Bitrix\Crm\Format\TextHelper", "onTextParserBeforeTags"));
$textParser = new \CTextParser();
$textParser->allow = array("HTML" => "N", "ANCHOR" => "Y", "BIU" => "Y", "IMG" => "Y", "QUOTE" => "Y", "CODE" => "Y", "FONT" => "Y", "LIST" => "Y", "SMILES" => "Y", "NL2BR" => "N", "VIDEO" => "Y", "TABLE" => "Y", "CUT_ANCHOR" => "Y", "ALIGN" => "Y");
$result = $textParser->convertText($html);
$result = preg_replace("/\<br\s*\/*\>/is".BX_UTF_PCRE_MODIFIER,"\n", $result);
$eventManager->removeEventHandler("main", "TextParserBeforeTags", $eventKey);
return $result;
}
public static function onTextParserBeforeTags(&$text, &$textParser)
{
$text = preg_replace(array("/\</is".BX_UTF_PCRE_MODIFIER, "/\>/is".BX_UTF_PCRE_MODIFIER),array('<', '>'),$text);
$text = preg_replace("/\<br\s*\/*\>/is".BX_UTF_PCRE_MODIFIER,"\n", $text);
$text = preg_replace("/ /is".BX_UTF_PCRE_MODIFIER,"", $text);
$text = preg_replace("/\<(\w+)[^>]*\>(.+?)\<\/\\1[^>]*\>/is".BX_UTF_PCRE_MODIFIER,"\\2",$text);
$text = preg_replace("/\<*\/li\>/is".BX_UTF_PCRE_MODIFIER,"", $text);
$text = str_replace(array("<", ">"),array("<", ">"),$text);
$textParser->allow = array();
return true;
}
public static function sanitizeHtml($html)
{
$html = strval($html);
if($html === '' || strpos($html, '<') === false)
{
return $html;
}
$sanitizer = new \CBXSanitizer();
$sanitizer->ApplyDoubleEncode(false);
//region Method #1 (Disable when CBXSanitizer::DeleteAttributes will be released)
$tags = array(
'a' => array('href', 'title','name','style','class','shape','coords','alt','target'),
'b' => array('style','class'),
'br' => array('style','class'),
'big' => array('style','class'),
'blockquote' => array('title','style','class'),
'caption' => array('style','class'),
'code' => array('style','class'),
'del' => array('title','style','class'),
'div' => array('title','style','class','align'),
'dt' => array('style','class'),
'dd' => array('style','class'),
'font' => array('color','size','face','style','class'),
'h1' => array('style','class','align'),
'h2' => array('style','class','align'),
'h3' => array('style','class','align'),
'h4' => array('style','class','align'),
'h5' => array('style','class','align'),
'h6' => array('style','class','align'),
'hr' => array('style','class'),
'i' => array('style','class'),
'img' => array('style','class','src','alt','height','width','title'),
'ins' => array('title','style','class'),
'li' => array('style','class'),
'map' => array('shape','coords','href','alt','title','style','class','name'),
'ol' => array('style','class'),
'p' => array('style','class','align'),
'pre' => array('style','class'),
's' => array('style','class'),
'small' => array('style','class'),
'strong' => array('style','class'),
'span' => array('title','style','class','align'),
'sub' => array('style','class'),
'sup' => array('style','class'),
'table' => array('border','width','style','class','cellspacing','cellpadding'),
'tbody' => array('align','valign','style','class'),
'td' => array('width','height','style','class','align','valign','colspan','rowspan'),
'tfoot' => array('align','valign','style','class','align','valign'),
'th' => array('width','height','style','class','colspan','rowspan'),
'thead' => array('align','valign','style','class'),
'tr' => array('align','valign','style','class'),
'u' => array('style','class'),
'ul' => array('style','class')
);
$sanitizer->DelAllTags();
$sanitizer->AddTags($tags);
//endregion
//region Method #2 (Enable when CBXSanitizer::DeleteAttributes will be released)
//$sanitizer->SetLevel(\CBXSanitizer::SECURE_LEVEL_LOW);
//$sanitizer->DeleteAttributes(array('id'));
//endregion
return $sanitizer->SanitizeHtml($html);
}
}