diff options
Diffstat (limited to 'vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php')
-rw-r--r-- | vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php | 128 |
1 files changed, 0 insertions, 128 deletions
diff --git a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php b/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php deleted file mode 100644 index e7df800b1..000000000 --- a/vendor/ezyang/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php +++ /dev/null @@ -1,128 +0,0 @@ -<?php - -/** - * Validates a host according to the IPv4, IPv6 and DNS (future) specifications. - */ -class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef -{ - - /** - * IPv4 sub-validator. - * @type HTMLPurifier_AttrDef_URI_IPv4 - */ - protected $ipv4; - - /** - * IPv6 sub-validator. - * @type HTMLPurifier_AttrDef_URI_IPv6 - */ - protected $ipv6; - - public function __construct() - { - $this->ipv4 = new HTMLPurifier_AttrDef_URI_IPv4(); - $this->ipv6 = new HTMLPurifier_AttrDef_URI_IPv6(); - } - - /** - * @param string $string - * @param HTMLPurifier_Config $config - * @param HTMLPurifier_Context $context - * @return bool|string - */ - public function validate($string, $config, $context) - { - $length = strlen($string); - // empty hostname is OK; it's usually semantically equivalent: - // the default host as defined by a URI scheme is used: - // - // If the URI scheme defines a default for host, then that - // default applies when the host subcomponent is undefined - // or when the registered name is empty (zero length). - if ($string === '') { - return ''; - } - if ($length > 1 && $string[0] === '[' && $string[$length - 1] === ']') { - //IPv6 - $ip = substr($string, 1, $length - 2); - $valid = $this->ipv6->validate($ip, $config, $context); - if ($valid === false) { - return false; - } - return '[' . $valid . ']'; - } - - // need to do checks on unusual encodings too - $ipv4 = $this->ipv4->validate($string, $config, $context); - if ($ipv4 !== false) { - return $ipv4; - } - - // A regular domain name. - - // This doesn't match I18N domain names, but we don't have proper IRI support, - // so force users to insert Punycode. - - // There is not a good sense in which underscores should be - // allowed, since it's technically not! (And if you go as - // far to allow everything as specified by the DNS spec... - // well, that's literally everything, modulo some space limits - // for the components and the overall name (which, by the way, - // we are NOT checking!). So we (arbitrarily) decide this: - // let's allow underscores wherever we would have allowed - // hyphens, if they are enabled. This is a pretty good match - // for browser behavior, for example, a large number of browsers - // cannot handle foo_.example.com, but foo_bar.example.com is - // fairly well supported. - $underscore = $config->get('Core.AllowHostnameUnderscore') ? '_' : ''; - - // The productions describing this are: - $a = '[a-z]'; // alpha - $an = '[a-z0-9]'; // alphanum - $and = "[a-z0-9-$underscore]"; // alphanum | "-" - // domainlabel = alphanum | alphanum *( alphanum | "-" ) alphanum - $domainlabel = "$an($and*$an)?"; - // toplabel = alpha | alpha *( alphanum | "-" ) alphanum - $toplabel = "$a($and*$an)?"; - // hostname = *( domainlabel "." ) toplabel [ "." ] - if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) { - return $string; - } - - // If we have Net_IDNA2 support, we can support IRIs by - // punycoding them. (This is the most portable thing to do, - // since otherwise we have to assume browsers support - - if ($config->get('Core.EnableIDNA')) { - $idna = new Net_IDNA2(array('encoding' => 'utf8', 'overlong' => false, 'strict' => true)); - // we need to encode each period separately - $parts = explode('.', $string); - try { - $new_parts = array(); - foreach ($parts as $part) { - $encodable = false; - for ($i = 0, $c = strlen($part); $i < $c; $i++) { - if (ord($part[$i]) > 0x7a) { - $encodable = true; - break; - } - } - if (!$encodable) { - $new_parts[] = $part; - } else { - $new_parts[] = $idna->encode($part); - } - } - $string = implode('.', $new_parts); - if (preg_match("/^($domainlabel\.)*$toplabel\.?$/i", $string)) { - return $string; - } - } catch (Exception $e) { - // XXX error reporting - } - } - return false; - } -} - -// vim: et sw=4 sts=4 |