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Fixed inconsistent output in PHP < 7.3 in e_parser::cleanHtml()

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- FIX: Workaround for https://bugs.php.net/bug.php?id=76285 present in PHP versions below 7.3 that maintains compatibility for PHP >= 7.3
This commit is contained in:
Nick Liu 2019-12-25 12:21:13 -08:00
parent 8c7d32c523
commit b3cf8df03c
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GPG Key ID: 1167C5F9C9897637
1 changed files with 16 additions and 23 deletions
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39
e107_handlers/e_parse_class.php
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@ -3830,7 +3830,7 @@ class e_parser
*/
function init()
{
$this->domObj = new DOMDocument();
$this->domObj = new DOMDocument('1.0', 'utf-8');
if(defined('FONTAWESOME'))
{
@ -5265,12 +5265,14 @@ return;
{
if(empty($html)){ return ''; }
$html = str_replace('&nbsp;', '@nbsp;', $html); // prevent replacement of &nbsp; with spaces.
$html = str_replace('&nbsp;', '{E_PARSER_CLEAN_HTML_NON_BREAKING_SPACE}', $html); // prevent replacement of &nbsp; with spaces.
// Workaround for https://bugs.php.net/bug.php?id=76285
// Part 1 of 2
$html = str_replace("\n", "{E_PARSER_CLEAN_HTML_LINE_BREAK}", $html);
if(strpos($html, "<body")===false) // HTML Fragment
{
$html = '<?xml version="1.0" encoding="utf-8"?><!DOCTYPE html><html><head><meta charset="utf-8"></head><body>'.$html.'</body></html>';
$html = '<body>'.$html.'</body>';
}
else // Full HTML page.
{
@ -5297,24 +5299,16 @@ return;
// Set it up for processing.
// libxml_use_internal_errors(true); // hides errors.
$doc = $this->domObj;
libxml_use_internal_errors(true);
// @$doc->loadHTML($html);
if(function_exists('mb_convert_encoding'))
{
$html = mb_convert_encoding($html, 'HTML-ENTITIES', "UTF-8");
}
@$doc->loadHTML($html);
@$doc->loadHTML($html, LIBXML_HTML_NOIMPLIED | LIBXML_HTML_NODEFDTD);
// $doc->encoding = 'UTF-8';
// $doc->resolveExternals = true;
// $tmp = $doc->getElementsByTagName('*');
$this->nodesToConvert = array(); // required.
$this->nodesToConvert = array(); // required.
$this->nodesToDelete = array(); // required.
$this->removedList = array();
@ -5483,20 +5477,19 @@ return;
}
*/
$cleaned = $doc->saveHTML($doc->documentElement); // $doc->documentElement fixes utf-8/entities issue. @see http://stackoverflow.com/questions/8218230/php-domdocument-loadhtml-not-encoding-utf-8-correctly
$cleaned = str_replace('@nbsp;', '&nbsp;', $cleaned); // prevent replacement of &nbsp; with spaces. - convert back.
$cleaned = $doc->saveHTML($doc->documentElement); // $doc->documentElement fixes utf-8/entities issue. @see http://stackoverflow.com/questions/8218230/php-domdocument-loadhtml-not-encoding-utf-8-correctly
// Workaround for https://bugs.php.net/bug.php?id=76285
// Part 2 of 2
$cleaned = str_replace("\n", "", $cleaned);
$cleaned = str_replace("{E_PARSER_CLEAN_HTML_LINE_BREAK}", "\n", $cleaned);
$cleaned = str_replace('{E_PARSER_CLEAN_HTML_NON_BREAKING_SPACE}', '&nbsp;', $cleaned); // prevent replacement of &nbsp; with spaces. - convert back.
$cleaned = str_replace('{{{','&#123;', $cleaned); // convert shortcode temporary triple-curly braces back to entities.
$cleaned = str_replace('}}}','&#125;', $cleaned); // convert shortcode temporary triple-curly braces back to entities.
$cleaned = str_replace('}}}','&#125;', $cleaned); // convert shortcode temporary triple-curly braces back to entities.
$cleaned = str_replace(array('<body>','</body>','<html>','</html>','<!DOCTYPE html>','<meta charset="UTF-8">','<?xml version="1.0" encoding="utf-8"?>'),'',$cleaned); // filter out tags.
$cleaned = str_replace(array('<body>','</body>'),'', $cleaned); // filter out tags.
// $cleaned = html_entity_decode($cleaned, ENT_QUOTES, 'UTF-8');
return trim($cleaned);
}