diff options
author | Klaus Weidenbach <Klaus.Weidenbach@gmx.net> | 2017-03-18 17:50:05 +0100 |
---|---|---|
committer | Klaus Weidenbach <Klaus.Weidenbach@gmx.net> | 2017-03-26 00:41:27 +0100 |
commit | f718e2b0db0fe3477212a8dd6c3ec067f4432862 (patch) | |
tree | 8dfbd3b3d4bdcd967b50f1ee4655440bcdef5bb8 /vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php | |
parent | 2115eb26a7fd2ca937286bd4e98ab74c7d6e9525 (diff) | |
download | volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.tar.gz volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.tar.bz2 volse-hubzilla-f718e2b0db0fe3477212a8dd6c3ec067f4432862.zip |
:arrow_up: Update HTML Purifier library.
Updated HTML Purifier from 4.6.0 to 4.9.2 with better PHP7 compatibility.
Used composer to manage this library.
Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php')
-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php new file mode 100644 index 000000000..2a55cea64 --- /dev/null +++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/Lang.php @@ -0,0 +1,86 @@ +<?php + +/** + * Validates the HTML attribute lang, effectively a language code. + * @note Built according to RFC 3066, which obsoleted RFC 1766 + */ +class HTMLPurifier_AttrDef_Lang extends HTMLPurifier_AttrDef +{ + + /** + * @param string $string + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return bool|string + */ + public function validate($string, $config, $context) + { + $string = trim($string); + if (!$string) { + return false; + } + + $subtags = explode('-', $string); + $num_subtags = count($subtags); + + if ($num_subtags == 0) { // sanity check + return false; + } + + // process primary subtag : $subtags[0] + $length = strlen($subtags[0]); + switch ($length) { + case 0: + return false; + case 1: + if (!($subtags[0] == 'x' || $subtags[0] == 'i')) { + return false; + } + break; + case 2: + case 3: + if (!ctype_alpha($subtags[0])) { + return false; + } elseif (!ctype_lower($subtags[0])) { + $subtags[0] = strtolower($subtags[0]); + } + break; + default: + return false; + } + + $new_string = $subtags[0]; + if ($num_subtags == 1) { + return $new_string; + } + + // process second subtag : $subtags[1] + $length = strlen($subtags[1]); + if ($length == 0 || ($length == 1 && $subtags[1] != 'x') || $length > 8 || !ctype_alnum($subtags[1])) { + return $new_string; + } + if (!ctype_lower($subtags[1])) { + $subtags[1] = strtolower($subtags[1]); + } + + $new_string .= '-' . $subtags[1]; + if ($num_subtags == 2) { + return $new_string; + } + + // process all other subtags, index 2 and up + for ($i = 2; $i < $num_subtags; $i++) { + $length = strlen($subtags[$i]); + if ($length == 0 || $length > 8 || !ctype_alnum($subtags[$i])) { + return $new_string; + } + if (!ctype_lower($subtags[$i])) { + $subtags[$i] = strtolower($subtags[$i]); + } + $new_string .= '-' . $subtags[$i]; + } + return $new_string; + } +} + +// vim: et sw=4 sts=4 |