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-rw-r--r--lib/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php101
1 files changed, 0 insertions, 101 deletions
diff --git a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php b/lib/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php
deleted file mode 100644
index 125decb2d..000000000
--- a/lib/htmlpurifier/library/HTMLPurifier/AttrDef/URI/Host.php
+++ /dev/null
@@ -1,101 +0,0 @@
-<?php
-
-/**
- * Validates a host according to the IPv4, IPv6 and DNS (future) specifications.
- */
-class HTMLPurifier_AttrDef_URI_Host extends HTMLPurifier_AttrDef
-{
-
- /**
- * Instance of HTMLPurifier_AttrDef_URI_IPv4 sub-validator
- */
- protected $ipv4;
-
- /**
- * Instance of HTMLPurifier_AttrDef_URI_IPv6 sub-validator
- */
- protected $ipv6;
-
- public function __construct() {
- $this->ipv4 = new HTMLPurifier_AttrDef_URI_IPv4();
- $this->ipv6 = new HTMLPurifier_AttrDef_URI_IPv6();
- }
-
- public function validate($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.
-
- // The productions describing this are:
- $a = '[a-z]'; // alpha
- $an = '[a-z0-9]'; // alphanum
- $and = '[a-z0-9-]'; // 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