hostname.php

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<?php

/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to [e-mail] so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Validate
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Hostname.php 9432 2008-05-09 14:18:37Z jokke $
 */


/**
 * @see Zend_Validate_Abstract
 */
require_once 'Zend/Validate/Abstract.php';

/**
 * @see Zend_Loader
 */
require_once 'Zend/Loader.php';

/**
 * @see Zend_Validate_Ip
 */
require_once 'Zend/Validate/Ip.php';

/**
 * Please note there are two standalone test scripts for testing IDN characters due to problems
 * with file encoding.
 *
 * The first is tests/Zend/Validate/HostnameTestStandalone.php which is designed to be run on
 * the command line.
 *
 * The second is tests/Zend/Validate/HostnameTestForm.php which is designed to be run via HTML
 * to allow users to test entering UTF-8 characters in a form.
 *
 * @category   Zend
 * @package    Zend_Validate
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Validate_Hostname extends Zend_Validate_Abstract
{

    const IP_ADDRESS_NOT_ALLOWED  = 'hostnameIpAddressNotAllowed';
    const UNKNOWN_TLD             = 'hostnameUnknownTld';
    const INVALID_DASH            = 'hostnameDashCharacter';
    const INVALID_HOSTNAME_SCHEMA = 'hostnameInvalidHostnameSchema';
    const UNDECIPHERABLE_TLD      = 'hostnameUndecipherableTld';
    const INVALID_HOSTNAME        = 'hostnameInvalidHostname';
    const INVALID_LOCAL_NAME      = 'hostnameInvalidLocalName';
    const LOCAL_NAME_NOT_ALLOWED  = 'hostnameLocalNameNotAllowed';

    /**
     * @var array
     */
    protected $_messageTemplates = array(
        self::IP_ADDRESS_NOT_ALLOWED  => "'%value%' appears to be an IP address, but IP addresses are not allowed",
        self::UNKNOWN_TLD             => "'%value%' appears to be a DNS hostname but cannot match TLD against known list",
        self::INVALID_DASH            => "'%value%' appears to be a DNS hostname but contains a dash (-) in an invalid position",
        self::INVALID_HOSTNAME_SCHEMA => "'%value%' appears to be a DNS hostname but cannot match against hostname schema for TLD '%tld%'",
        self::UNDECIPHERABLE_TLD      => "'%value%' appears to be a DNS hostname but cannot extract TLD part",
        self::INVALID_HOSTNAME        => "'%value%' does not match the expected structure for a DNS hostname",
        self::INVALID_LOCAL_NAME      => "'%value%' does not appear to be a valid local network name",
        self::LOCAL_NAME_NOT_ALLOWED  => "'%value%' appears to be a local network name but local network names are not allowed"
    );

    /**
     * @var array
     */
    protected $_messageVariables = array(
        'tld' => '_tld'
    );

    /**
     * Allows Internet domain names (e.g., example.com)
     */
    const ALLOW_DNS   = 1;

    /**
     * Allows IP addresses
     */
    const ALLOW_IP    = 2;

    /**
     * Allows local network names (e.g., localhost, www.localdomain)
     */
    const ALLOW_LOCAL = 4;

    /**
     * Allows all types of hostnames
     */
    const ALLOW_ALL   = 7;

    /**
     * Whether IDN domains are validated
     *
     * @var boolean
     */
    private $_validateIdn = true;

    /**
     * Whether TLDs are validated against a known list
     *
     * @var boolean
     */
    private $_validateTld = true;

    /**
     * Bit field of ALLOW constants; determines which types of hostnames are allowed
     *
     * @var integer
     */
    protected $_allow;

    /**
     * Bit field of CHECK constants; determines what additional hostname checks to make
     *
     * @var unknown_type
     */
    // protected $_check;

    /**
     * Array of valid top-level-domains
     *
     * @var array
     * @see ftp://data.iana.org/TLD/tlds-alpha-by-domain.txt  List of all TLDs by domain
     */
    protected $_validTlds = array(
        'ac', 'ad', 'ae', 'aero', 'af', 'ag', 'ai', 'al', 'am', 'an', 'ao',
        'aq', 'ar', 'arpa', 'as', 'asia', 'at', 'au', 'aw', 'ax', 'az', 'ba', 'bb',
        'bd', 'be', 'bf', 'bg', 'bh', 'bi', 'biz', 'bj', 'bm', 'bn', 'bo',
        'br', 'bs', 'bt', 'bv', 'bw', 'by', 'bz', 'ca', 'cat', 'cc', 'cd',
        'cf', 'cg', 'ch', 'ci', 'ck', 'cl', 'cm', 'cn', 'co', 'com', 'coop',
        'cr', 'cu', 'cv', 'cx', 'cy', 'cz', 'de', 'dj', 'dk', 'dm', 'do',
        'dz', 'ec', 'edu', 'ee', 'eg', 'er', 'es', 'et', 'eu', 'fi', 'fj',
        'fk', 'fm', 'fo', 'fr', 'ga', 'gb', 'gd', 'ge', 'gf', 'gg', 'gh',
        'gi', 'gl', 'gm', 'gn', 'gov', 'gp', 'gq', 'gr', 'gs', 'gt', 'gu',
        'gw', 'gy', 'hk', 'hm', 'hn', 'hr', 'ht', 'hu', 'id', 'ie', 'il',
        'im', 'in', 'info', 'int', 'io', 'iq', 'ir', 'is', 'it', 'je', 'jm',
        'jo', 'jobs', 'jp', 'ke', 'kg', 'kh', 'ki', 'km', 'kn', 'kp', 'kr', 'kw',
        'ky', 'kz', 'la', 'lb', 'lc', 'li', 'lk', 'lr', 'ls', 'lt', 'lu',
        'lv', 'ly', 'ma', 'mc', 'md', 'me', 'mg', 'mh', 'mil', 'mk', 'ml', 'mm',
        'mn', 'mo', 'mobi', 'mp', 'mq', 'mr', 'ms', 'mt', 'mu', 'museum', 'mv',
        'mw', 'mx', 'my', 'mz', 'na', 'name', 'nc', 'ne', 'net', 'nf', 'ng',
        'ni', 'nl', 'no', 'np', 'nr', 'nu', 'nz', 'om', 'org', 'pa', 'pe',
        'pf', 'pg', 'ph', 'pk', 'pl', 'pm', 'pn', 'pr', 'pro', 'ps', 'pt',
        'pw', 'py', 'qa', 're', 'ro', 'rs', 'ru', 'rw', 'sa', 'sb', 'sc', 'sd',
        'se', 'sg', 'sh', 'si', 'sj', 'sk', 'sl', 'sm', 'sn', 'so', 'sr',
        'st', 'su', 'sv', 'sy', 'sz', 'tc', 'td', 'tel', 'tf', 'tg', 'th', 'tj',
        'tk', 'tl', 'tm', 'tn', 'to', 'tp', 'tr', 'travel', 'tt', 'tv', 'tw',
        'tz', 'ua', 'ug', 'uk', 'um', 'us', 'uy', 'uz', 'va', 'vc', 've',
        'vg', 'vi', 'vn', 'vu', 'wf', 'ws', 'ye', 'yt', 'yu', 'za', 'zm',
        'zw'
        );

    /**
     * @var string
     */
    protected $_tld;

    /**
     * Sets validator options
     *
     * @param integer          $allow       OPTIONAL Set what types of hostname to allow (default ALLOW_DNS)
     * @param boolean          $validateIdn OPTIONAL Set whether IDN domains are validated (default true)
     * @param boolean          $validateTld OPTIONAL Set whether the TLD element of a hostname is validated (default true)
     * @param Zend_Validate_Ip $ipValidator OPTIONAL
     * @return void
     * @see http://www.iana.org/cctld/specifications-policies-cctlds-01apr02.htm  Technical Specifications for ccTLDs
     */
    public function __construct($allow = self::ALLOW_DNS, $validateIdn = true, $validateTld = true, Zend_Validate_Ip $ipValidator = null)
    {
        // Set allow options
        $this->setAllow($allow);

        // Set validation options
        $this->_validateIdn = $validateIdn;
        $this->_validateTld = $validateTld;

        $this->setIpValidator($ipValidator);
    }

    /**
     * @param Zend_Validate_Ip $ipValidator OPTIONAL
     * @return void;
     */
    public function setIpValidator(Zend_Validate_Ip $ipValidator = null)
    {
        if ($ipValidator === null) {
            $ipValidator = new Zend_Validate_Ip();
        }
        $this->_ipValidator = $ipValidator;
    }

    /**
     * Returns the allow option
     *
     * @return integer
     */
    public function getAllow()
    {
        return $this->_allow;
    }

    /**
     * Sets the allow option
     *
     * @param  integer $allow
     * @return Zend_Validate_Hostname Provides a fluent interface
     */