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Hostname.php

<?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 license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Validate
 * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Hostname.php 20358 2010-01-17 19:03:49Z thomas $
 */

/**
 * @see Zend_Validate_Abstract
 */
require_once 'Zend/Validate/Abstract.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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
00047 class Zend_Validate_Hostname extends Zend_Validate_Abstract
{
    const INVALID                 = 'hostnameInvalid';
    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';
    const CANNOT_DECODE_PUNYCODE  = 'hostnameCannotDecodePunycode';

    /**
     * @var array
     */
    protected $_messageTemplates = array(
        self::INVALID                 => "Invalid type given, value should be a string",
        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",
        self::CANNOT_DECODE_PUNYCODE  => "'%value%' appears to be a DNS hostname but the given punycode notation cannot be decoded",
    );

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

    /**
     * Allows Internet domain names (e.g., example.com)
     */
00086     const ALLOW_DNS   = 1;

    /**
     * Allows IP addresses
     */
00091     const ALLOW_IP    = 2;

    /**
     * Allows local network names (e.g., localhost, www.localdomain)
     */
00096     const ALLOW_LOCAL = 4;

    /**
     * Allows all types of hostnames
     */
00101     const ALLOW_ALL   = 7;

    /**
     * Array of valid top-level-domains
     *
     * @see ftp://data.iana.org/TLD/tlds-alpha-by-domain.txt  List of all TLDs by domain
     * @see http://www.iana.org/domains/root/db/ Official list of supported TLDs
     * @var array
     */
    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;

    /**
     * Array for valid Idns
     * @see http://www.iana.org/domains/idn-tables/ Official list of supported IDN Chars
     * (.AC) Ascension Island http://www.nic.ac/pdf/AC-IDN-Policy.pdf
     * (.AR) Argentinia http://www.nic.ar/faqidn.html
     * (.AS) American Samoa http://www.nic.as/idn/chars.cfm
     * (.AT) Austria http://www.nic.at/en/service/technical_information/idn/charset_converter/
     * (.BIZ) International http://www.iana.org/domains/idn-tables/
     * (.BR) Brazil http://registro.br/faq/faq6.html
     * (.BV) Bouvett Island http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
     * (.CAT) Catalan http://www.iana.org/domains/idn-tables/tables/cat_ca_1.0.html
     * (.CH) Switzerland https://nic.switch.ch/reg/ocView.action?res=EF6GW2JBPVTG67DLNIQXU234MN6SC33JNQQGI7L6#anhang1
     * (.CL) Chile http://www.iana.org/domains/idn-tables/tables/cl_latn_1.0.html
     * (.COM) International http://www.verisign.com/information-services/naming-services/internationalized-domain-names/index.html
     * (.DE) Germany http://www.denic.de/en/domains/idns/liste.html
     * (.DK) Danmark http://www.dk-hostmaster.dk/index.php?id=151
     * (.ES) Spain https://www.nic.es/media/2008-05/1210147705287.pdf
     * (.FI) Finland http://www.ficora.fi/en/index/palvelut/fiverkkotunnukset/aakkostenkaytto.html
     * (.GR) Greece https://grweb.ics.forth.gr/CharacterTable1_en.jsp
     * (.HU) Hungary http://www.domain.hu/domain/English/szabalyzat/szabalyzat.html
     * (.INFO) International http://www.nic.info/info/idn
     * (.IO) British Indian Ocean Territory http://www.nic.io/IO-IDN-Policy.pdf
     * (.IR) Iran http://www.nic.ir/Allowable_Characters_dot-iran
     * (.IS) Iceland http://www.isnic.is/domain/rules.php
     * (.KR) Korea http://www.iana.org/domains/idn-tables/tables/kr_ko-kr_1.0.html
     * (.LI) Liechtenstein https://nic.switch.ch/reg/ocView.action?res=EF6GW2JBPVTG67DLNIQXU234MN6SC33JNQQGI7L6#anhang1
     * (.LT) Lithuania http://www.domreg.lt/static/doc/public/idn_symbols-en.pdf
     * (.MD) Moldova http://www.register.md/
     * (.MUSEUM) International http://www.iana.org/domains/idn-tables/tables/museum_latn_1.0.html
     * (.NET) International http://www.verisign.com/information-services/naming-services/internationalized-domain-names/index.html
     * (.NO) Norway http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
     * (.NU) Niue http://www.worldnames.net/
     * (.ORG) International http://www.pir.org/index.php?db=content/FAQs&tbl=FAQs_Registrant&id=2
     * (.PE) Peru https://www.nic.pe/nuevas_politicas_faq_2.php
     * (.PL) Poland http://www.dns.pl/IDN/allowed_character_sets.pdf
     * (.PR) Puerto Rico http://www.nic.pr/idn_rules.asp
     * (.PT) Portugal https://online.dns.pt/dns_2008/do?com=DS;8216320233;111;+PAGE(4000058)+K-CAT-CODIGO(C.125)+RCNT(100);
     * (.RU) Russia http://www.iana.org/domains/idn-tables/tables/ru_ru-ru_1.0.html
     * (.SA) Saudi Arabia http://www.iana.org/domains/idn-tables/tables/sa_ar_1.0.html
     * (.SE) Sweden http://www.iis.se/english/IDN_campaignsite.shtml?lang=en
     * (.SH) Saint Helena http://www.nic.sh/SH-IDN-Policy.pdf
     * (.SJ) Svalbard and Jan Mayen http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
     * (.TH) Thailand http://www.iana.org/domains/idn-tables/tables/th_th-th_1.0.html
     * (.TM) Turkmenistan http://www.nic.tm/TM-IDN-Policy.pdf
     * (.TR) Turkey https://www.nic.tr/index.php
     * (.VE) Venice http://www.iana.org/domains/idn-tables/tables/ve_es_1.0.html
     * (.VN) Vietnam http://www.vnnic.vn/english/5-6-300-2-2-04-20071115.htm#1.%20Introduction
     *
     * @var array
     */
    protected $_validIdns = array(
        'AC'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēėęěĝġģĥħīįĵķĺļľŀłńņňŋőœŕŗřśŝşšţťŧūŭůűųŵŷźżž]{1,63}$/iu'),
        'AR'  => array(1 => '/^[\x{002d}0-9a-zà-ãç-êìíñ-õü]{1,63}$/iu'),
        'AS'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēĕėęěĝğġģĥħĩīĭįıĵķĸĺļľłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźż]{1,63}$/iu'),
        'AT'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœšž]{1,63}$/iu'),
        'BIZ' => 'Hostname/Biz.php',
        'BR'  => array(1 => '/^[\x{002d}0-9a-zà-ãçéíó-õúü]{1,63}$/iu'),
        'BV'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
        'CAT' => array(1 => '/^[\x{002d}0-9a-z·àç-éíïòóúü]{1,63}$/iu'),
        'CH'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
        'CL'  => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
        'CN'  => 'Hostname/Cn.php',
        'COM' => 'Zend/Validate/Hostname/Com.php',
        'DE'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
        'DK'  => array(1 => '/^[\x{002d}0-9a-zäéöü]{1,63}$/iu'),
        'ES'  => array(1 => '/^[\x{002d}0-9a-zàáçèéíïñòóúü·]{1,63}$/iu'),
        'FI'  => array(1 => '/^[\x{002d}0-9a-zäåö]{1,63}$/iu'),
        'GR'  => array(1 => '/^[\x{002d}0-9a-zΆΈΉΊΌΎ-ΡΣ-ώἀ-ἕἘ-Ἕἠ-ὅὈ-Ὅὐ-ὗὙὛὝὟ-ώᾀ-ᾴᾶ-ᾼῂῃῄῆ-ῌῐ-ΐῖ-Ίῠ-Ῥῲῳῴῶ-ῼ]{1,63}$/iu'),
        'HK'  => 'Zend/Validate/Hostname/Cn.php',
        'HU'  => array(1 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu'),
        'INFO'=> array(1 => '/^[\x{002d}0-9a-zäåæéöøü]{1,63}$/iu',
            2 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu',
            3 => '/^[\x{002d}0-9a-záæéíðóöúýþ]{1,63}$/iu',
            4 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu',
            5 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu',
            6 => '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
            7 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
            8 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
        'IO'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
        'IS'  => array(1 => '/^[\x{002d}0-9a-záéýúíóþæöð]{1,63}$/iu'),
        'JP'  => 'Zend/Validate/Hostname/Jp.php',
        'KR'  => array(1 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu'),
        'LI'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
        'LT'  => array(1 => '/^[\x{002d}0-9ąčęėįšųūž]{1,63}$/iu'),
        'MD'  => array(1 => '/^[\x{002d}0-9ăâîşţ]{1,63}$/iu'),
        'MUSEUM' => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćċčďđēėęěğġģħīįıķĺļľłńņňŋōőœŕŗřśşšţťŧūůűųŵŷźżžǎǐǒǔ\x{01E5}\x{01E7}\x{01E9}\x{01EF}ə\x{0292}ẁẃẅỳ]{1,63}$/iu'),
        'NET' => 'Zend/Validate/Hostname/Com.php',
        'NO'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
        'NU'  => 'Zend/Validate/Hostname/Com.php',
        'ORG' => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu',
            2 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
            3 => '/^[\x{002d}0-9a-záäåæéëíðóöøúüýþ]{1,63}$/iu',
            4 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu',
            5 => '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
            6 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu',
            7 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu'),
        'PE'  => array(1 => '/^[\x{002d}0-9a-zñáéíóúü]{1,63}$/iu'),
        'PL'  => array(1 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu',
            2 => '/^[\x{002d}а-ик-ш\x{0450}ѓѕјљњќџ]{1,63}$/iu',
            3 => '/^[\x{002d}0-9a-zâîăşţ]{1,63}$/iu',
            4 => '/^[\x{002d}0-9а-яё\x{04C2}]{1,63}$/iu',
            5 => '/^[\x{002d}0-9a-zàáâèéêìíîòóôùúûċġħż]{1,63}$/iu',
            6 => '/^[\x{002d}0-9a-zàäåæéêòóôöøü]{1,63}$/iu',
            7 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
            8 => '/^[\x{002d}0-9a-zàáâãçéêíòóôõúü]{1,63}$/iu',
            9 => '/^[\x{002d}0-9a-zâîăşţ]{1,63}$/iu',
            10=> '/^[\x{002d}0-9a-záäéíóôúýčďĺľňŕšťž]{1,63}$/iu',
            11=> '/^[\x{002d}0-9a-zçë]{1,63}$/iu',
            12=> '/^[\x{002d}0-9а-ик-шђјљњћџ]{1,63}$/iu',
            13=> '/^[\x{002d}0-9a-zćčđšž]{1,63}$/iu',
            14=> '/^[\x{002d}0-9a-zâçöûüğış]{1,63}$/iu',
            15=> '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu',
            16=> '/^[\x{002d}0-9a-zäõöüšž]{1,63}$/iu',
            17=> '/^[\x{002d}0-9a-zĉĝĥĵŝŭ]{1,63}$/iu',
            18=> '/^[\x{002d}0-9a-zâäéëîô]{1,63}$/iu',
            19=> '/^[\x{002d}0-9a-zàáâäåæçèéêëìíîïðñòôöøùúûüýćčłńřśš]{1,63}$/iu',
            20=> '/^[\x{002d}0-9a-zäåæõöøüšž]{1,63}$/iu',
            21=> '/^[\x{002d}0-9a-zàáçèéìíòóùú]{1,63}$/iu',
            22=> '/^[\x{002d}0-9a-zàáéíóöúüőű]{1,63}$/iu',
            23=> '/^[\x{002d}0-9ΐά-ώ]{1,63}$/iu',
            24=> '/^[\x{002d}0-9a-zàáâåæçèéêëðóôöøüþœ]{1,63}$/iu',
            25=> '/^[\x{002d}0-9a-záäéíóöúüýčďěňřšťůž]{1,63}$/iu',
            26=> '/^[\x{002d}0-9a-z·àçèéíïòóúü]{1,63}$/iu',
            27=> '/^[\x{002d}0-9а-ъьюя\x{0450}\x{045D}]{1,63}$/iu',
            28=> '/^[\x{002d}0-9а-яёіў]{1,63}$/iu',
            29=> '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
            30=> '/^[\x{002d}0-9a-záäåæéëíðóöøúüýþ]{1,63}$/iu',
            31=> '/^[\x{002d}0-9a-zàâæçèéêëîïñôùûüÿœ]{1,63}$/iu',
            32=> '/^[\x{002d}0-9а-щъыьэюяёєіїґ]{1,63}$/iu',
            33=> '/^[\x{002d}0-9א-ת]{1,63}$/iu'),
        'PR'  => array(1 => '/^[\x{002d}0-9a-záéíóúñäëïüöâêîôûàèùæçœãõ]{1,63}$/iu'),
        'PT'  => array(1 => '/^[\x{002d}0-9a-záàâãçéêíóôõú]{1,63}$/iu'),
        'RU'  => array(1 => '/^[\x{002d}0-9а-яё]{1,63}$/iu'),
        'SA'  => array(1 => '/^[\x{002d}.0-9\x{0621}-\x{063A}\x{0641}-\x{064A}\x{0660}-\x{0669}]{1,63}$/iu'),
        'SE'  => array(1 => '/^[\x{002d}0-9a-zäåéöü]{1,63}$/iu'),
        'SH'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
        'SJ'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
        'TH'  => array(1 => '/^[\x{002d}0-9a-z\x{0E01}-\x{0E3A}\x{0E40}-\x{0E4D}\x{0E50}-\x{0E59}]{1,63}$/iu'),
        'TM'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēėęěĝġģĥħīįĵķĺļľŀłńņňŋőœŕŗřśŝşšţťŧūŭůűųŵŷźżž]{1,63}$/iu'),
        'TW'  => 'Zend/Validate/Hostname/Cn.php',
        'TR'  => array(1 => '/^[\x{002d}0-9a-zğıüşöç]{1,63}$/iu'),
        'VE'  => array(1 => '/^[\x{002d}0-9a-záéíóúüñ]{1,63}$/iu'),
        'VN'  => array(1 => '/^[ÀÁÂÃÈÉÊÌÍÒÓÔÕÙÚÝàáâãèéêìíòóôõùúýĂăĐđĨĩŨũƠơƯư\x{1EA0}-\x{1EF9}]{1,63}$/iu'),
        'ایران' => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
        '中国' => 'Zend/Validate/Hostname/Cn.php',
        '公司' => 'Zend/Validate/Hostname/Cn.php',
        '网络' => 'Zend/Validate/Hostname/Cn.php'
    );

    protected $_idnLength = array(
        'BIZ' => array(5 => 17, 11 => 15, 12 => 20),
        'CN'  => array(1 => 20),
        'COM' => array(3 => 17, 5 => 20),
        'HK'  => array(1 => 15),
        'INFO'=> array(4 => 17),
        'KR'  => array(1 => 17),
        'NET' => array(3 => 17, 5 => 20),
        'ORG' => array(6 => 17),
        'TW'  => array(1 => 20),
        'ایران' => array(1 => 30),
        '中国' => array(1 => 20),
        '公司' => array(1 => 20),
        '网络' => array(1 => 20),
    );

    protected $_options = array(
        'allow' => self::ALLOW_DNS,
        'idn'   => true,
        'tld'   => true,
        'ip'    => null
    );

    /**
     * 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 $ipValidator OPTIONAL
     * @return void
     * @see http://www.iana.org/cctld/specifications-policies-cctlds-01apr02.htm  Technical Specifications for ccTLDs
     */
00319     public function __construct($options = array())
    {
        if ($options instanceof Zend_Config) {
            $options = $options->toArray();
        } else if (!is_array($options)) {
            $options = func_get_args();
            $temp['allow'] = array_shift($options);
            if (!empty($options)) {
                $temp['idn'] = array_shift($options);
            }

            if (!empty($options)) {
                $temp['tld'] = array_shift($options);
            }

            if (!empty($options)) {
                $temp['ip'] = array_shift($options);
            }

            $options = $temp;
        }

        $options += $this->_options;
        $this->setOptions($options);
    }

    /**
     * Returns all set options
     *
     * @return array
     */
00350     public function getOptions()
    {
        return $this->_options;
    }

    /**
     * Sets the options for this validator
     *
     * @param array $options
     * @return Zend_Validate_Hostname
     */
00361     public function setOptions($options)
    {
        if (array_key_exists('allow', $options)) {
            $this->setAllow($options['allow']);
        }

        if (array_key_exists('idn', $options)) {
            $this->setValidateIdn($options['idn']);
        }

        if (array_key_exists('tld', $options)) {
            $this->setValidateTld($options['tld']);
        }

        if (array_key_exists('ip', $options)) {
            $this->setIpValidator($options['ip']);
        }

        return $this;
    }

    /**
     * Returns the set ip validator
     *
     * @return Zend_Validate_Ip
     */
00387     public function getIpValidator()
    {
        return $this->_options['ip'];
    }

    /**
     * @param Zend_Validate_Ip $ipValidator OPTIONAL
     * @return void;
     */
00396     public function setIpValidator(Zend_Validate_Ip $ipValidator = null)
    {
        if ($ipValidator === null) {
            $ipValidator = new Zend_Validate_Ip();
        }

        $this->_options['ip'] = $ipValidator;
        return $this;
    }

    /**
     * Returns the allow option
     *
     * @return integer
     */
00411     public function getAllow()
    {
        return $this->_options['allow'];
    }

    /**
     * Sets the allow option
     *
     * @param  integer $allow
     * @return Zend_Validate_Hostname Provides a fluent interface
     */
00422     public function setAllow($allow)
    {
        $this->_options['allow'] = $allow;
        return $this;
    }

    /**
     * Returns the set idn option
     *
     * @return boolean
     */
00433     public function getValidateIdn()
    {
        return $this->_options['idn'];
    }

    /**
     * Set whether IDN domains are validated
     *
     * This only applies when DNS hostnames are validated
     *
     * @param boolean $allowed Set allowed to true to validate IDNs, and false to not validate them
     */
00445     public function setValidateIdn ($allowed)
    {
        $this->_options['idn'] = (bool) $allowed;
        return $this;
    }

    /**
     * Returns the set tld option
     *
     * @return boolean
     */
00456     public function getValidateTld()
    {
        return $this->_options['tld'];
    }

    /**
     * Set whether the TLD element of a hostname is validated
     *
     * This only applies when DNS hostnames are validated
     *
     * @param boolean $allowed Set allowed to true to validate TLDs, and false to not validate them
     */
00468     public function setValidateTld ($allowed)
    {
        $this->_options['tld'] = (bool) $allowed;
        return $this;
    }

    /**
     * Defined by Zend_Validate_Interface
     *
     * Returns true if and only if the $value is a valid hostname with respect to the current allow option
     *
     * @param  string $value
     * @throws Zend_Validate_Exception if a fatal error occurs for validation process
     * @return boolean
     */
00483     public function isValid($value)
    {
        if (!is_string($value)) {
            $this->_error(self::INVALID);
            return false;
        }

        $this->_setValue($value);
        // Check input against IP address schema
        if (preg_match('/^[0-9.a-e:.]*$/i', $value) &&
            $this->_options['ip']->setTranslator($this->getTranslator())->isValid($value)) {
            if (!($this->_options['allow'] & self::ALLOW_IP)) {
                $this->_error(self::IP_ADDRESS_NOT_ALLOWED);
                return false;
            } else {
                return true;
            }
        }

        // Check input against DNS hostname schema
        $domainParts = explode('.', $value);
        if ((count($domainParts) > 1) && (strlen($value) >= 4) && (strlen($value) <= 254)) {
            $status = false;

            $origenc = iconv_get_encoding('internal_encoding');
            iconv_set_encoding('internal_encoding', 'UTF-8');
            do {
                // First check TLD
                $matches = array();
                if (preg_match('/([^.]{2,10})$/i', end($domainParts), $matches) ||
                    (end($domainParts) == 'ایران') || (end($domainParts) == '中国') ||
                    (end($domainParts) == '公司') || (end($domainParts) == '网络')) {

                    reset($domainParts);

                    // Hostname characters are: *(label dot)(label dot label); max 254 chars
                    // label: id-prefix [*ldh{61} id-prefix]; max 63 chars
                    // id-prefix: alpha / digit
                    // ldh: alpha / digit / dash

                    // Match TLD against known list
                    $this->_tld = strtolower($matches[1]);
                    if ($this->_options['tld']) {
                        if (!in_array($this->_tld, $this->_validTlds)) {
                            $this->_error(self::UNKNOWN_TLD);
                            $status = false;
                            break;
                        }
                    }

                    /**
                     * Match against IDN hostnames
                     * Note: Keep label regex short to avoid issues with long patterns when matching IDN hostnames
                     * @see Zend_Validate_Hostname_Interface
                     */
                    $regexChars = array(0 => '/^[a-z0-9\x2d]{1,63}$/i');
                    if ($this->_options['idn'] &&  isset($this->_validIdns[strtoupper($this->_tld)])) {
                        if (is_string($this->_validIdns[strtoupper($this->_tld)])) {
                            $regexChars += include($this->_validIdns[strtoupper($this->_tld)]);
                        } else {
                            $regexChars += $this->_validIdns[strtoupper($this->_tld)];
                        }
                    }

                    // Check each hostname part
                    $check = 0;
                    foreach ($domainParts as $domainPart) {
                        // Decode Punycode domainnames to IDN
                        if (strpos($domainPart, 'xn--') === 0) {
                            $domainPart = $this->decodePunycode(substr($domainPart, 4));
                            if ($domainPart === false) {
                                return false;
                            }
                        }

                        // Check dash (-) does not start, end or appear in 3rd and 4th positions
                        if ((strpos($domainPart, '-') === 0)
                            || ((strlen($domainPart) > 2) && (strpos($domainPart, '-', 2) == 2) && (strpos($domainPart, '-', 3) == 3))
                            || (strpos($domainPart, '-') === (strlen($domainPart) - 1))) {
                                $this->_error(self::INVALID_DASH);
                            $status = false;
                            break 2;
                        }

                        // Check each domain part
                        $checked = false;
                        foreach($regexChars as $regexKey => $regexChar) {
                            $status = @preg_match($regexChar, $domainPart);
                            if ($status > 0) {
                                $length = 63;
                                if (array_key_exists(strtoupper($this->_tld), $this->_idnLength)
                                    && (array_key_exists($regexKey, $this->_idnLength[strtoupper($this->_tld)]))) {
                                    $length = $this->_idnLength[strtoupper($this->_tld)];
                                }

                                if (iconv_strlen($domainPart, 'UTF-8') > $length) {
                                    $this->_error(self::INVALID_HOSTNAME);
                                } else {
                                    $checked = true;
                                    break;
                                }
                            }
                        }

                        if ($checked) {
                            ++$check;
                        }
                    }

                    // If one of the labels doesn't match, the hostname is invalid
                    if ($check !== count($domainParts)) {
                        $this->_error(self::INVALID_HOSTNAME_SCHEMA);
                        $status = false;
                    }
                } else {
                    // Hostname not long enough
                    $this->_error(self::UNDECIPHERABLE_TLD);
                    $status = false;
                }
            } while (false);

            iconv_set_encoding('internal_encoding', $origenc);
            // If the input passes as an Internet domain name, and domain names are allowed, then the hostname
            // passes validation
            if ($status && ($this->_options['allow'] & self::ALLOW_DNS)) {
                return true;
            }
        } else if ($this->_options['allow'] & self::ALLOW_DNS) {
            $this->_error(self::INVALID_HOSTNAME);
        }

        // Check input against local network name schema; last chance to pass validation
        $regexLocal = '/^(([a-zA-Z0-9\x2d]{1,63}\x2e)*[a-zA-Z0-9\x2d]{1,63}){1,254}$/';
        $status = @preg_match($regexLocal, $value);

        // If the input passes as a local network name, and local network names are allowed, then the
        // hostname passes validation
        $allowLocal = $this->_options['allow'] & self::ALLOW_LOCAL;
        if ($status && $allowLocal) {
            return true;
        }

        // If the input does not pass as a local network name, add a message
        if (!$status) {
            $this->_error(self::INVALID_LOCAL_NAME);
        }

        // If local network names are not allowed, add a message
        if ($status && !$allowLocal) {
            $this->_error(self::LOCAL_NAME_NOT_ALLOWED);
        }

        return false;
    }

    /**
     * Decodes a punycode encoded string to it's original utf8 string
     * In case of a decoding failure the original string is returned
     *
     * @param  string $encoded Punycode encoded string to decode
     * @return string
     */
00645     protected function decodePunycode($encoded)
    {
        $found = preg_match('/([^a-z0-9\x2d]{1,10})$/i', $encoded);
        if (empty($encoded) || ($found > 0)) {
            // no punycode encoded string, return as is
            $this->_error(self::CANNOT_DECODE_PUNYCODE);
            return false;
        }

        $separator = strrpos($encoded, '-');
        if ($separator > 0) {
            for ($x = 0; $x < $separator; ++$x) {
                // prepare decoding matrix
                $decoded[] = ord($encoded[$x]);
            }
        } else {
            $this->_error(self::CANNOT_DECODE_PUNYCODE);
            return false;
        }

        $lengthd = count($decoded);
        $lengthe = strlen($encoded);

        // decoding
        $init  = true;
        $base  = 72;
        $index = 0;
        $char  = 0x80;

        for ($indexe = ($separator) ? ($separator + 1) : 0; $indexe < $lengthe; ++$lengthd) {
            for ($old_index = $index, $pos = 1, $key = 36; 1 ; $key += 36) {
                $hex   = ord($encoded[$indexe++]);
                $digit = ($hex - 48 < 10) ? $hex - 22
                       : (($hex - 65 < 26) ? $hex - 65
                       : (($hex - 97 < 26) ? $hex - 97
                       : 36));

                $index += $digit * $pos;
                $tag    = ($key <= $base) ? 1 : (($key >= $base + 26) ? 26 : ($key - $base));
                if ($digit < $tag) {
                    break;
                }

                $pos = (int) ($pos * (36 - $tag));
            }

            $delta   = intval($init ? (($index - $old_index) / 700) : (($index - $old_index) / 2));
            $delta  += intval($delta / ($lengthd + 1));
            for ($key = 0; $delta > 910 / 2; $key += 36) {
                $delta = intval($delta / 35);
            }

            $base   = intval($key + 36 * $delta / ($delta + 38));
            $init   = false;
            $char  += (int) ($index / ($lengthd + 1));
            $index %= ($lengthd + 1);
            if ($lengthd > 0) {
                for ($i = $lengthd; $i > $index; $i--) {
                    $decoded[$i] = $decoded[($i - 1)];
                }
            }

            $decoded[$index++] = $char;
        }

        // convert decoded ucs4 to utf8 string
        foreach ($decoded as $key => $value) {
            if ($value < 128) {
                $decoded[$key] = chr($value);
            } elseif ($value < (1 << 11)) {
                $decoded[$key]  = chr(192 + ($value >> 6));
                $decoded[$key] .= chr(128 + ($value & 63));
            } elseif ($value < (1 << 16)) {
                $decoded[$key]  = chr(224 + ($value >> 12));
                $decoded[$key] .= chr(128 + (($value >> 6) & 63));
                $decoded[$key] .= chr(128 + ($value & 63));
            } elseif ($value < (1 << 21)) {
                $decoded[$key]  = chr(240 + ($value >> 18));
                $decoded[$key] .= chr(128 + (($value >> 12) & 63));
                $decoded[$key] .= chr(128 + (($value >> 6) & 63));
                $decoded[$key] .= chr(128 + ($value & 63));
            } else {
                $this->_error(self::CANNOT_DECODE_PUNYCODE);
                return false;
            }
        }

        return implode($decoded);
    }
}

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