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author | Klaus Weidenbach <Klaus.Weidenbach@gmx.net> | 2017-03-18 17:50:05 +0100 |
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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/URI/IPv6.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/URI/IPv6.php')
-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/IPv6.php | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/IPv6.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/IPv6.php new file mode 100644 index 000000000..f243793ee --- /dev/null +++ b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/IPv6.php @@ -0,0 +1,89 @@ +<?php + +/** + * Validates an IPv6 address. + * @author Feyd @ forums.devnetwork.net (public domain) + * @note This function requires brackets to have been removed from address + * in URI. + */ +class HTMLPurifier_AttrDef_URI_IPv6 extends HTMLPurifier_AttrDef_URI_IPv4 +{ + + /** + * @param string $aIP + * @param HTMLPurifier_Config $config + * @param HTMLPurifier_Context $context + * @return bool|string + */ + public function validate($aIP, $config, $context) + { + if (!$this->ip4) { + $this->_loadRegex(); + } + + $original = $aIP; + + $hex = '[0-9a-fA-F]'; + $blk = '(?:' . $hex . '{1,4})'; + $pre = '(?:/(?:12[0-8]|1[0-1][0-9]|[1-9][0-9]|[0-9]))'; // /0 - /128 + + // prefix check + if (strpos($aIP, '/') !== false) { + if (preg_match('#' . $pre . '$#s', $aIP, $find)) { + $aIP = substr($aIP, 0, 0 - strlen($find[0])); + unset($find); + } else { + return false; + } + } + + // IPv4-compatiblity check + if (preg_match('#(?<=:' . ')' . $this->ip4 . '$#s', $aIP, $find)) { + $aIP = substr($aIP, 0, 0 - strlen($find[0])); + $ip = explode('.', $find[0]); + $ip = array_map('dechex', $ip); + $aIP .= $ip[0] . $ip[1] . ':' . $ip[2] . $ip[3]; + unset($find, $ip); + } + + // compression check + $aIP = explode('::', $aIP); + $c = count($aIP); + if ($c > 2) { + return false; + } elseif ($c == 2) { + list($first, $second) = $aIP; + $first = explode(':', $first); + $second = explode(':', $second); + + if (count($first) + count($second) > 8) { + return false; + } + + while (count($first) < 8) { + array_push($first, '0'); + } + + array_splice($first, 8 - count($second), 8, $second); + $aIP = $first; + unset($first, $second); + } else { + $aIP = explode(':', $aIP[0]); + } + $c = count($aIP); + + if ($c != 8) { + return false; + } + + // All the pieces should be 16-bit hex strings. Are they? + foreach ($aIP as $piece) { + if (!preg_match('#^[0-9a-fA-F]{4}$#s', sprintf('%04s', $piece))) { + return false; + } + } + return $original; + } +} + +// vim: et sw=4 sts=4 |