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Hostname.php

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  1. <?php
  2. /**
  3.  * Zend Framework (http://framework.zend.com/)
  4.  *
  5.  * @link      http://github.com/zendframework/zf2 for the canonical source repository
  6.  * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
  7.  * @license   http://framework.zend.com/license/new-bsd New BSD License
  8.  */
  9.  
  10. namespace Zend\Validator;
  11.  
  12. use Zend\Stdlib\ErrorHandler;
  13. use Zend\Stdlib\StringUtils;
  14.  
  15. /**
  16.  * Please note there are two standalone test scripts for testing IDN characters due to problems
  17.  * with file encoding.
  18.  *
  19.  * The first is tests/Zend/Validator/HostnameTestStandalone.php which is designed to be run on
  20.  * the command line.
  21.  *
  22.  * The second is tests/Zend/Validator/HostnameTestForm.php which is designed to be run via HTML
  23.  * to allow users to test entering UTF-8 characters in a form.
  24.  */
  25. class Hostname extends AbstractValidator
  26. {
  27.     const CANNOT_DECODE_PUNYCODE  = 'hostnameCannotDecodePunycode';
  28.     const INVALID                 = 'hostnameInvalid';
  29.     const INVALID_DASH            = 'hostnameDashCharacter';
  30.     const INVALID_HOSTNAME        = 'hostnameInvalidHostname';
  31.     const INVALID_HOSTNAME_SCHEMA = 'hostnameInvalidHostnameSchema';
  32.     const INVALID_LOCAL_NAME      = 'hostnameInvalidLocalName';
  33.     const INVALID_URI             = 'hostnameInvalidUri';
  34.     const IP_ADDRESS_NOT_ALLOWED  = 'hostnameIpAddressNotAllowed';
  35.     const LOCAL_NAME_NOT_ALLOWED  = 'hostnameLocalNameNotAllowed';
  36.     const UNDECIPHERABLE_TLD      = 'hostnameUndecipherableTld';
  37.     const UNKNOWN_TLD             = 'hostnameUnknownTld';
  38.  
  39.     /**
  40.      * @var array
  41.      */
  42.     protected $messageTemplates = array(
  43.         self::CANNOT_DECODE_PUNYCODE  => "The input appears to be a DNS hostname but the given punycode notation cannot be decoded",
  44.         self::INVALID                 => "Invalid type given. String expected",
  45.         self::INVALID_DASH            => "The input appears to be a DNS hostname but contains a dash in an invalid position",
  46.         self::INVALID_HOSTNAME        => "The input does not match the expected structure for a DNS hostname",
  47.         self::INVALID_HOSTNAME_SCHEMA => "The input appears to be a DNS hostname but cannot match against hostname schema for TLD '%tld%'",
  48.         self::INVALID_LOCAL_NAME      => "The input does not appear to be a valid local network name",
  49.         self::INVALID_URI             => "The input does not appear to be a valid URI hostname",
  50.         self::IP_ADDRESS_NOT_ALLOWED  => "The input appears to be an IP address, but IP addresses are not allowed",
  51.         self::LOCAL_NAME_NOT_ALLOWED  => "The input appears to be a local network name but local network names are not allowed",
  52.         self::UNDECIPHERABLE_TLD      => "The input appears to be a DNS hostname but cannot extract TLD part",
  53.         self::UNKNOWN_TLD             => "The input appears to be a DNS hostname but cannot match TLD against known list",
  54.     );
  55.  
  56.     /**
  57.      * @var array
  58.      */
  59.     protected $messageVariables = array(
  60.         'tld' => 'tld',
  61.     );
  62.  
  63.     const ALLOW_DNS   = 1;  // Allows Internet domain names (e.g., example.com)
  64.     const ALLOW_IP    = 2;  // Allows IP addresses
  65.     const ALLOW_LOCAL = 4;  // Allows local network names (e.g., localhost, www.localdomain)
  66.     const ALLOW_URI   = 8;  // Allows URI hostnames
  67.     const ALLOW_ALL   = 15;  // Allows all types of hostnames
  68.  
  69.     /**
  70.      * Array of valid top-level-domains
  71.      *
  72.      * @see ftp://data.iana.org/TLD/tlds-alpha-by-domain.txt  List of all TLDs by domain
  73.      * @see http://www.iana.org/domains/root/db/ Official list of supported TLDs
  74.      * @var array
  75.      */
  76.     protected $validTlds = array(
  77.         'ac', 'academy', 'actor', 'ad', 'ae', 'aero', 'af', 'ag', 'agency', 'ai', 'al', 'am', 'an', 'ao', 'aq', 'ar',
  78.         'arpa', 'as', 'asia', 'at', 'au', 'aw', 'ax', 'az', 'ba', 'bar', 'bargains', 'bb', 'bd', 'be', 'berlin', 'best',
  79.         'bf', 'bg', 'bh', 'bi', 'bike', 'biz', 'bj', 'bl', 'blue', 'bm', 'bn', 'bo', 'boutique', 'bq', 'br', 'bs', 'bt',
  80.         'build', 'builders', 'buzz', 'bv', 'bw', 'by', 'bz', 'ca', 'cab', 'camera', 'camp', 'cards', 'careers', 'cat',
  81.         'catering', 'cc', 'cd', 'center', 'ceo', 'cf', 'cg', 'ch', 'cheap', 'christmas', 'ci', 'ck', 'cl', 'cleaning',
  82.         'clothing', 'club', 'cm', 'cn', 'co', 'codes', 'coffee', 'com', 'community', 'company', 'computer',
  83.         'construction', 'contractors', 'cool', 'coop', 'cr', 'cruises', 'cu', 'cv', 'cw', 'cx', 'cy', 'cz', 'dance',
  84.         'dating', 'de', 'democrat', 'diamonds', 'directory', 'dj', 'dk', 'dm', 'do', 'domains', 'dz', 'ec', 'edu',
  85.         'education', 'ee', 'eg', 'eh', 'email', 'enterprises', 'equipment', 'er', 'es', 'estate', 'et', 'eu', 'events',
  86.         'expert', 'exposed', 'farm', 'fi', 'fish', 'fj', 'fk', 'flights', 'florist', 'fm', 'fo', 'foundation', 'fr',
  87.         'futbol', 'ga', 'gallery', 'gb', 'gd', 'ge', 'gf', 'gg', 'gh', 'gi', 'gift', 'gl', 'glass', 'gm', 'gn', 'gov',
  88.         'gp', 'gq', 'gr', 'graphics', 'gs', 'gt', 'gu', 'guitars', 'guru', 'gw', 'gy', 'hk', 'hm', 'hn', 'holdings',
  89.         'holiday', 'house', 'hr', 'ht', 'hu', 'id', 'ie', 'il', 'im', 'immobilien', 'in', 'industries', 'info',
  90.         'institute', 'int', 'international', 'io', 'iq', 'ir', 'is', 'it', 'je', 'jm', 'jo', 'jobs', 'jp', 'kaufen',
  91.         'ke', 'kg', 'kh', 'ki', 'kim', 'kitchen', 'kiwi', 'km', 'kn', 'kp', 'kr', 'kred', 'kw', 'ky', 'kz', 'la',
  92.         'land', 'lb', 'lc', 'li', 'lighting', 'limo', 'link', 'lk', 'lr', 'ls', 'lt', 'lu', 'luxury', 'lv', 'ly', 'ma',
  93.         'management', 'mango', 'marketing', 'mc', 'md', 'me', 'menu', 'mf', 'mg', 'mh', 'mil', 'mk', 'ml', 'mm', 'mn',
  94.         'mo', 'mobi', 'moda', 'monash', 'mp', 'mq', 'mr', 'ms', 'mt', 'mu', 'museum', 'mv', 'mw', 'mx', 'my', 'mz',
  95.         'na', 'nagoya', 'name', 'nc', 'ne', 'net', 'neustar', 'nf', 'ng', 'ni', 'ninja', 'nl', 'no', 'np', 'nr', 'nu',
  96.         'nz', 'om', 'onl', 'org', 'pa', 'partners', 'parts', 'pe', 'pf', 'pg', 'ph', 'photo', 'photography', 'photos',
  97.         'pics', 'pink', 'pk', 'pl', 'plumbing', 'pm', 'pn', 'post', 'pr', 'pro', 'productions', 'properties', 'ps',
  98.         'pt', 'pub', 'pw', 'py', 'qa', 'qpon', 're', 'recipes', 'red', 'rentals', 'repair', 'report', 'reviews', 'rich',
  99.         'ro', 'rs', 'ru', 'ruhr', 'rw', 'sa', 'sb', 'sc', 'sd', 'se', 'sexy', 'sg', 'sh', 'shiksha', 'shoes', 'si',
  100.         'singles', 'sj', 'sk', 'sl', 'sm', 'sn', 'so', 'social', 'solar', 'solutions', 'sr', 'ss', 'st', 'su',
  101.         'supplies', 'supply', 'support', 'sv', 'sx', 'sy', 'systems', 'sz', 'tattoo', 'tc', 'td', 'technology', 'tel',
  102.         'tf', 'tg', 'th', 'tienda', 'tips', 'tj', 'tk', 'tl', 'tm', 'tn', 'to', 'today', 'tokyo', 'tools', 'tp', 'tr',
  103.         'training', 'travel', 'tt', 'tv', 'tw', 'tz', 'ua', 'ug', 'uk', 'um', 'uno', 'us', 'uy', 'uz', 'va',
  104.         'vacations', 'vc', 've', 'ventures', 'vg', 'vi', 'viajes', 'villas', 'vision', 'vn', 'voting', 'voyage', 'vu',
  105.         'wang', 'watch', 'wed', 'wf', 'wien', 'wiki', 'works', 'ws', '测试', 'परीक्षा', '集团', '在线', '한국', 'ভারত',
  106.         'বাংলা', '公益', '公司', '移动', '我爱你', 'испытание', 'қаз', 'онлайн', 'сайт', 'срб', '테스트', '삼성',
  107.         'சிங்கப்பூர்', 'дети', 'טעסט', '中文网', '中信', '中国', '中國', 'భారత్', 'ලංකා', '測試', 'ભારત', 'भारत',
  108.         'آزمایشی', 'பரிட்சை', '网络', 'укр', '香港', 'δοκιμή', 'إختبار', '台湾', '台灣', 'мон',
  109.         'الجزائر', 'عمان', 'ایران', 'امارات', 'بازار', 'پاکستان', 'الاردن', 'بھارت', 'المغرب', 'السعودية', 'سودان', 'مليسيا', 'شبكة', 'გე',
  110.         'ไทย', 'سورية', 'рф', 'تونس', 'みんな', 'ਭਾਰਤ', '游戏', 'مصر', 'قطر', 'இலங்கை', 'இந்தியா', '新加坡', 'فلسطين',
  111.         'テスト', '政务', 'xxx', 'xyz', 'ye', 'yt', 'za', 'zm', 'zone', 'zw'
  112.     );
  113.  
  114.     /**
  115.      * Array for valid Idns
  116.      * @see http://www.iana.org/domains/idn-tables/ Official list of supported IDN Chars
  117.      * (.AC) Ascension Island http://www.nic.ac/pdf/AC-IDN-Policy.pdf
  118.      * (.AR) Argentina http://www.nic.ar/faqidn.html
  119.      * (.AS) American Samoa http://www.nic.as/idn/chars.cfm
  120.      * (.AT) Austria http://www.nic.at/en/service/technical_information/idn/charset_converter/
  121.      * (.BIZ) International http://www.iana.org/domains/idn-tables/
  122.      * (.BR) Brazil http://registro.br/faq/faq6.html
  123.      * (.BV) Bouvett Island http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
  124.      * (.CAT) Catalan http://www.iana.org/domains/idn-tables/tables/cat_ca_1.0.html
  125.      * (.CH) Switzerland https://nic.switch.ch/reg/ocView.action?res=EF6GW2JBPVTG67DLNIQXU234MN6SC33JNQQGI7L6#anhang1
  126.      * (.CL) Chile http://www.iana.org/domains/idn-tables/tables/cl_latn_1.0.html
  127.      * (.COM) International http://www.verisign.com/information-services/naming-services/internationalized-domain-names/index.html
  128.      * (.DE) Germany http://www.denic.de/en/domains/idns/liste.html
  129.      * (.DK) Danmark http://www.dk-hostmaster.dk/index.php?id=151
  130.      * (.ES) Spain https://www.nic.es/media/2008-05/1210147705287.pdf
  131.      * (.FI) Finland http://www.ficora.fi/en/index/palvelut/fiverkkotunnukset/aakkostenkaytto.html
  132.      * (.GR) Greece https://grweb.ics.forth.gr/CharacterTable1_en.jsp
  133.      * (.HU) Hungary http://www.domain.hu/domain/English/szabalyzat/szabalyzat.html
  134.      * (.IL) Israel http://www.isoc.org.il/domains/il-domain-rules.html
  135.      * (.INFO) International http://www.nic.info/info/idn
  136.      * (.IO) British Indian Ocean Territory http://www.nic.io/IO-IDN-Policy.pdf
  137.      * (.IR) Iran http://www.nic.ir/Allowable_Characters_dot-iran
  138.      * (.IS) Iceland http://www.isnic.is/domain/rules.php
  139.      * (.KR) Korea http://www.iana.org/domains/idn-tables/tables/kr_ko-kr_1.0.html
  140.      * (.LI) Liechtenstein https://nic.switch.ch/reg/ocView.action?res=EF6GW2JBPVTG67DLNIQXU234MN6SC33JNQQGI7L6#anhang1
  141.      * (.LT) Lithuania http://www.domreg.lt/static/doc/public/idn_symbols-en.pdf
  142.      * (.MD) Moldova http://www.register.md/
  143.      * (.MUSEUM) International http://www.iana.org/domains/idn-tables/tables/museum_latn_1.0.html
  144.      * (.NET) International http://www.verisign.com/information-services/naming-services/internationalized-domain-names/index.html
  145.      * (.NO) Norway http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
  146.      * (.NU) Niue http://www.worldnames.net/
  147.      * (.ORG) International http://www.pir.org/index.php?db=content/FAQs&tbl=FAQs_Registrant&id=2
  148.      * (.PE) Peru https://www.nic.pe/nuevas_politicas_faq_2.php
  149.      * (.PL) Poland http://www.dns.pl/IDN/allowed_character_sets.pdf
  150.      * (.PR) Puerto Rico http://www.nic.pr/idn_rules.asp
  151.      * (.PT) Portugal https://online.dns.pt/dns_2008/do?com=DS;8216320233;111;+PAGE(4000058)+K-CAT-CODIGO(C.125)+RCNT(100);
  152.      * (.RU) Russia http://www.iana.org/domains/idn-tables/tables/ru_ru-ru_1.0.html
  153.      * (.SA) Saudi Arabia http://www.iana.org/domains/idn-tables/tables/sa_ar_1.0.html
  154.      * (.SE) Sweden http://www.iis.se/english/IDN_campaignsite.shtml?lang=en
  155.      * (.SH) Saint Helena http://www.nic.sh/SH-IDN-Policy.pdf
  156.      * (.SJ) Svalbard and Jan Mayen http://www.norid.no/domeneregistrering/idn/idn_nyetegn.en.html
  157.      * (.TH) Thailand http://www.iana.org/domains/idn-tables/tables/th_th-th_1.0.html
  158.      * (.TM) Turkmenistan http://www.nic.tm/TM-IDN-Policy.pdf
  159.      * (.TR) Turkey https://www.nic.tr/index.php
  160.      * (.UA) Ukraine http://www.iana.org/domains/idn-tables/tables/ua_cyrl_1.2.html
  161.      * (.VE) Venice http://www.iana.org/domains/idn-tables/tables/ve_es_1.0.html
  162.      * (.VN) Vietnam http://www.vnnic.vn/english/5-6-300-2-2-04-20071115.htm#1.%20Introduction
  163.      *
  164.      * @var array
  165.      */
  166.     protected $validIdns = array(
  167.         'AC'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēėęěĝġģĥħīįĵķĺļľŀłńņňŋőœŕŗřśŝşšţťŧūŭůűųŵŷźżž]{1,63}$/iu'),
  168.         'AR'  => array(1 => '/^[\x{002d}0-9a-zà-ãç-êìíñ-õü]{1,63}$/iu'),
  169.         'AS'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēĕėęěĝğġģĥħĩīĭįıĵķĸĺļľłńņňŋōŏőœŕŗřśŝşšţťŧũūŭůűųŵŷźż]{1,63}$/iu'),
  170.         'AT'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœšž]{1,63}$/iu'),
  171.         'BIZ' => 'Hostname/Biz.php',
  172.         'BR'  => array(1 => '/^[\x{002d}0-9a-zà-ãçéíó-õúü]{1,63}$/iu'),
  173.         'BV'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
  174.         'CAT' => array(1 => '/^[\x{002d}0-9a-z·àç-éíïòóúü]{1,63}$/iu'),
  175.         'CH'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
  176.         'CL'  => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
  177.         'CN'  => 'Hostname/Cn.php',
  178.         'COM' => 'Hostname/Com.php',
  179.         'DE'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
  180.         'DK'  => array(1 => '/^[\x{002d}0-9a-zäéöü]{1,63}$/iu'),
  181.         'ES'  => array(1 => '/^[\x{002d}0-9a-zàáçèéíïñòóúü·]{1,63}$/iu'),
  182.         'EU'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿ]{1,63}$/iu',
  183.             2 => '/^[\x{002d}0-9a-zāăąćĉċčďđēĕėęěĝğġģĥħĩīĭįıĵķĺļľŀłńņňʼnŋōŏőœŕŗřśŝšťŧũūŭůűųŵŷźżž]{1,63}$/iu',
  184.             3 => '/^[\x{002d}0-9a-zșț]{1,63}$/iu',
  185.             4 => '/^[\x{002d}0-9a-zΐάέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ]{1,63}$/iu',
  186.             5 => '/^[\x{002d}0-9a-zабвгдежзийклмнопрстуфхцчшщъыьэюя]{1,63}$/iu',
  187.             6 => '/^[\x{002d}0-9a-zἀ-ἇἐ-ἕἠ-ἧἰ-ἷὀ-ὅὐ-ὗὠ-ὧὰ-ὼώᾀ-ᾇᾐ-ᾗᾠ-ᾧᾰ-ᾴᾶᾷῂῃῄῆῇῐ-ῒΐῖῗῠ-ῧῲῳῴῶῷ]{1,63}$/iu'),
  188.         'FI'  => array(1 => '/^[\x{002d}0-9a-zäåö]{1,63}$/iu'),
  189.         '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}$/iu'),
  190.         'HK'  => 'Hostname/Cn.php',
  191.         'HU'  => array(1 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu'),
  192.         'IL'  => array(1 => '/^[\x{002d}0-9\x{05D0}-\x{05EA}]{1,63}$/iu',
  193.             2 => '/^[\x{002d}0-9a-z]{1,63}$/i'),
  194.         'INFO'=> array(1 => '/^[\x{002d}0-9a-zäåæéöøü]{1,63}$/iu',
  195.             2 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu',
  196.             3 => '/^[\x{002d}0-9a-záæéíðóöúýþ]{1,63}$/iu',
  197.             4 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu',
  198.             5 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu',
  199.             6 => '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
  200.             7 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
  201.             8 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu'),
  202.         'IO'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
  203.         'IS'  => array(1 => '/^[\x{002d}0-9a-záéýúíóþæöð]{1,63}$/iu'),
  204.         'IT'  => array(1 => '/^[\x{002d}0-9a-zàâäèéêëìîïòôöùûüæœçÿß-]{1,63}$/iu'),
  205.         'JP'  => 'Hostname/Jp.php',
  206.         'KR'  => array(1 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu'),
  207.         'LI'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿœ]{1,63}$/iu'),
  208.         'LT'  => array(1 => '/^[\x{002d}0-9ąčęėįšųūž]{1,63}$/iu'),
  209.         'MD'  => array(1 => '/^[\x{002d}0-9ăâîşţ]{1,63}$/iu'),
  210.         'MUSEUM' => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćċčďđēėęěğġģħīįıķĺļľłńņňŋōőœŕŗřśşšţťŧūůűųŵŷźżžǎǐǒǔ\x{01E5}\x{01E7}\x{01E9}\x{01EF}ə\x{0292}ẁẃẅỳ]{1,63}$/iu'),
  211.         'NET' => 'Hostname/Com.php',
  212.         'NO'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
  213.         'NU'  => 'Hostname/Com.php',
  214.         'ORG' => array(1 => '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu',
  215.             2 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
  216.             3 => '/^[\x{002d}0-9a-záäåæéëíðóöøúüýþ]{1,63}$/iu',
  217.             4 => '/^[\x{002d}0-9a-záéíóöúüőű]{1,63}$/iu',
  218.             5 => '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
  219.             6 => '/^[\x{AC00}-\x{D7A3}]{1,17}$/iu',
  220.             7 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu'),
  221.         'PE'  => array(1 => '/^[\x{002d}0-9a-zñáéíóúü]{1,63}$/iu'),
  222.         'PL'  => array(1 => '/^[\x{002d}0-9a-zāčēģīķļņōŗšūž]{1,63}$/iu',
  223.             2 => '/^[\x{002d}а-ик-ш\x{0450}ѓѕјљњќџ]{1,63}$/iu',
  224.             3 => '/^[\x{002d}0-9a-zâîăşţ]{1,63}$/iu',
  225.             4 => '/^[\x{002d}0-9а-яё\x{04C2}]{1,63}$/iu',
  226.             5 => '/^[\x{002d}0-9a-zàáâèéêìíîòóôùúûċġħż]{1,63}$/iu',
  227.             6 => '/^[\x{002d}0-9a-zàäåæéêòóôöøü]{1,63}$/iu',
  228.             7 => '/^[\x{002d}0-9a-zóąćęłńśźż]{1,63}$/iu',
  229.             8 => '/^[\x{002d}0-9a-zàáâãçéêíòóôõúü]{1,63}$/iu',
  230.             9 => '/^[\x{002d}0-9a-zâîăşţ]{1,63}$/iu',
  231.             10=> '/^[\x{002d}0-9a-záäéíóôúýčďĺľňŕšťž]{1,63}$/iu',
  232.             11=> '/^[\x{002d}0-9a-zçë]{1,63}$/iu',
  233.             12=> '/^[\x{002d}0-9а-ик-шђјљњћџ]{1,63}$/iu',
  234.             13=> '/^[\x{002d}0-9a-zćčđšž]{1,63}$/iu',
  235.             14=> '/^[\x{002d}0-9a-zâçöûüğış]{1,63}$/iu',
  236.             15=> '/^[\x{002d}0-9a-záéíñóúü]{1,63}$/iu',
  237.             16=> '/^[\x{002d}0-9a-zäõöüšž]{1,63}$/iu',
  238.             17=> '/^[\x{002d}0-9a-zĉĝĥĵŝŭ]{1,63}$/iu',
  239.             18=> '/^[\x{002d}0-9a-zâäéëîô]{1,63}$/iu',
  240.             19=> '/^[\x{002d}0-9a-zàáâäåæçèéêëìíîïðñòôöøùúûüýćčłńřśš]{1,63}$/iu',
  241.             20=> '/^[\x{002d}0-9a-zäåæõöøüšž]{1,63}$/iu',
  242.             21=> '/^[\x{002d}0-9a-zàáçèéìíòóùú]{1,63}$/iu',
  243.             22=> '/^[\x{002d}0-9a-zàáéíóöúüőű]{1,63}$/iu',
  244.             23=> '/^[\x{002d}0-9ΐά-ώ]{1,63}$/iu',
  245.             24=> '/^[\x{002d}0-9a-zàáâåæçèéêëðóôöøüþœ]{1,63}$/iu',
  246.             25=> '/^[\x{002d}0-9a-záäéíóöúüýčďěňřšťůž]{1,63}$/iu',
  247.             26=> '/^[\x{002d}0-9a-z·àçèéíïòóúü]{1,63}$/iu',
  248.             27=> '/^[\x{002d}0-9а-ъьюя\x{0450}\x{045D}]{1,63}$/iu',
  249.             28=> '/^[\x{002d}0-9а-яёіў]{1,63}$/iu',
  250.             29=> '/^[\x{002d}0-9a-ząčėęįšūųž]{1,63}$/iu',
  251.             30=> '/^[\x{002d}0-9a-záäåæéëíðóöøúüýþ]{1,63}$/iu',
  252.             31=> '/^[\x{002d}0-9a-zàâæçèéêëîïñôùûüÿœ]{1,63}$/iu',
  253.             32=> '/^[\x{002d}0-9а-щъыьэюяёєіїґ]{1,63}$/iu',
  254.             33=> '/^[\x{002d}0-9א-ת]{1,63}$/iu'),
  255.         'PR'  => array(1 => '/^[\x{002d}0-9a-záéíóúñäëïüöâêîôûàèùæçœãõ]{1,63}$/iu'),
  256.         'PT'  => array(1 => '/^[\x{002d}0-9a-záàâãçéêíóôõú]{1,63}$/iu'),
  257.         'RU'  => array(1 => '/^[\x{002d}0-9а-яё]{1,63}$/iu'),
  258.         'SA'  => array(1 => '/^[\x{002d}.0-9\x{0621}-\x{063A}\x{0641}-\x{064A}\x{0660}-\x{0669}]{1,63}$/iu'),
  259.         'SE'  => array(1 => '/^[\x{002d}0-9a-zäåéöü]{1,63}$/iu'),
  260.         'SH'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿăąāćĉčċďđĕěėęēğĝġģĥħĭĩįīıĵķĺľļłńňņŋŏőōœĸŕřŗśŝšşťţŧŭůűũųūŵŷźžż]{1,63}$/iu'),
  261.         'SI'  => array(
  262.             1 => '/^[\x{002d}0-9a-zà-öø-ÿ]{1,63}$/iu',
  263.             2 => '/^[\x{002d}0-9a-zāăąćĉċčďđēĕėęěĝğġģĥħĩīĭįıĵķĺļľŀłńņňʼnŋōŏőœŕŗřśŝšťŧũūŭůűųŵŷźżž]{1,63}$/iu',
  264.             3 => '/^[\x{002d}0-9a-zșț]{1,63}$/iu'),
  265.         'SJ'  => array(1 => '/^[\x{002d}0-9a-zàáä-éêñ-ôöøüčđńŋšŧž]{1,63}$/iu'),
  266.         'TH'  => array(1 => '/^[\x{002d}0-9a-z\x{0E01}-\x{0E3A}\x{0E40}-\x{0E4D}\x{0E50}-\x{0E59}]{1,63}$/iu'),
  267.         'TM'  => array(1 => '/^[\x{002d}0-9a-zà-öø-ÿāăąćĉċčďđēėęěĝġģĥħīįĵķĺļľŀłńņňŋőœŕŗřśŝşšţťŧūŭůűųŵŷźżž]{1,63}$/iu'),
  268.         'TW'  => 'Hostname/Cn.php',
  269.         'TR'  => array(1 => '/^[\x{002d}0-9a-zğıüşöç]{1,63}$/iu'),
  270.         'UA'  => array(1 => '/^[\x{002d}0-9a-zабвгдежзийклмнопрстуфхцчшщъыьэюяѐёђѓєѕіїјљњћќѝўџґӂʼ]{1,63}$/iu'),
  271.         'VE'  => array(1 => '/^[\x{002d}0-9a-záéíóúüñ]{1,63}$/iu'),
  272.         'VN'  => array(1 => '/^[ÀÁÂÃÈÉÊÌÍÒÓÔÕÙÚÝàáâãèéêìíòóôõùúýĂăĐđĨĩŨũƠơƯư\x{1EA0}-\x{1EF9}]{1,63}$/iu'),
  273.         'мон' => array(1 => '/^[\x{002d}0-9\x{0430}-\x{044F}]{1,63}$/iu'),
  274.         'срб' => array(1 => '/^[\x{002d}0-9а-ик-шђјљњћџ]{1,63}$/iu'),
  275.         'сайт' => array(1 => '/^[\x{002d}0-9а-яёіїѝйўґг]{1,63}$/iu'),
  276.         'онлайн' => array(1 => '/^[\x{002d}0-9а-яёіїѝйўґг]{1,63}$/iu'),
  277.         '中国' => 'Hostname/Cn.php',
  278.         '中國' => 'Hostname/Cn.php',
  279.         'ලංකා' => array(1 => '/^[\x{0d80}-\x{0dff}]{1,63}$/iu'),
  280.         '香港' => 'Hostname/Cn.php',
  281.         '台湾' => 'Hostname/Cn.php',
  282.         '台灣' => 'Hostname/Cn.php',
  283.         'امارات'   => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
  284.         'الاردن'    => 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}$/iu'),
  285.         'السعودية' => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
  286.         'ไทย' => array(1 => '/^[\x{002d}0-9a-z\x{0E01}-\x{0E3A}\x{0E40}-\x{0E4D}\x{0E50}-\x{0E59}]{1,63}$/iu'),
  287.         'рф' => array(1 => '/^[\x{002d}0-9а-яё]{1,63}$/iu'),
  288.         'تونس' => 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}$/iu'),
  289.         'مصر' => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
  290.         'இலங்கை' => array(1 => '/^[\x{0b80}-\x{0bff}]{1,63}$/iu'),
  291.         'فلسطين' => array(1 => '/^[\x{0621}-\x{0624}\x{0626}-\x{063A}\x{0641}\x{0642}\x{0644}-\x{0648}\x{067E}\x{0686}\x{0698}\x{06A9}\x{06AF}\x{06CC}\x{06F0}-\x{06F9}]{1,30}$/iu'),
  292.         'شبكة'  => 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'),
  293.     );
  294.  
  295.     protected $idnLength = array(
  296.         'BIZ' => array(5 => 17, 11 => 15, 12 => 20),
  297.         'CN'  => array(1 => 20),
  298.         'COM' => array(3 => 17, 5 => 20),
  299.         'HK'  => array(1 => 15),
  300.         'INFO'=> array(4 => 17),
  301.         'KR'  => array(1 => 17),
  302.         'NET' => array(3 => 17, 5 => 20),
  303.         'ORG' => array(6 => 17),
  304.         'TW'  => array(1 => 20),
  305.         'امارات' => array(1 => 30),
  306.         'الاردن' => array(1 => 30),
  307.         'السعودية' => array(1 => 30),
  308.         'تونس' => array(1 => 30),
  309.         'مصر' => array(1 => 30),
  310.         'فلسطين' => array(1 => 30),
  311.         'شبكة' => array(1 => 30),
  312.         '中国' => array(1 => 20),
  313.         '中國' => array(1 => 20),
  314.         '香港' => array(1 => 20),
  315.         '台湾' => array(1 => 20),
  316.         '台灣' => array(1 => 20),
  317.     );
  318.  
  319.     protected $tld;
  320.  
  321.     /**
  322.      * Options for the hostname validator
  323.      *
  324.      * @var array
  325.      */
  326.     protected $options = array(
  327.         'allow'       => self::ALLOW_DNS, // Allow these hostnames
  328.         'useIdnCheck' => true,  // Check IDN domains
  329.         'useTldCheck' => true,  // Check TLD elements
  330.         'ipValidator' => null,  // IP validator to use
  331.     );
  332.  
  333.     /**
  334.      * Sets validator options.
  335.      *
  336.      * @param int  $allow       OPTIONAL Set what types of hostname to allow (default ALLOW_DNS)
  337.      * @param bool $useIdnCheck OPTIONAL Set whether IDN domains are validated (default true)
  338.      * @param bool $useTldCheck Set whether the TLD element of a hostname is validated (default true)
  339.      * @param Ip   $ipValidator OPTIONAL
  340.      * @see http://www.iana.org/cctld/specifications-policies-cctlds-01apr02.htm  Technical Specifications for ccTLDs
  341.      */
  342.     public function __construct($options = array())
  343.     {
  344.         if (!is_array($options)) {
  345.             $options = func_get_args();
  346.             $temp['allow'] = array_shift($options);
  347.             if (!empty($options)) {
  348.                 $temp['useIdnCheck'] = array_shift($options);
  349.             }
  350.  
  351.             if (!empty($options)) {
  352.                 $temp['useTldCheck'] = array_shift($options);
  353.             }
  354.  
  355.             if (!empty($options)) {
  356.                 $temp['ipValidator'] = array_shift($options);
  357.             }
  358.  
  359.             $options = $temp;
  360.         }
  361.  
  362.         if (!array_key_exists('ipValidator', $options)) {
  363.             $options['ipValidator'] = null;
  364.         }
  365.  
  366.         parent::__construct($options);
  367.     }
  368.  
  369.     /**
  370.      * Returns the set ip validator
  371.      *
  372.      * @return Ip
  373.      */
  374.     public function getIpValidator()
  375.     {
  376.         return $this->options['ipValidator'];
  377.     }
  378.  
  379.     /**
  380.      *
  381.      * @param Ip $ipValidator OPTIONAL
  382.      * @return Hostname;
  383.      */
  384.     public function setIpValidator(Ip $ipValidator = null)
  385.     {
  386.         if ($ipValidator === null) {
  387.             $ipValidator = new Ip();
  388.         }
  389.  
  390.         $this->options['ipValidator'] = $ipValidator;
  391.         return $this;
  392.     }
  393.  
  394.     /**
  395.      * Returns the allow option
  396.      *
  397.      * @return int
  398.      */
  399.     public function getAllow()
  400.     {
  401.         return $this->options['allow'];
  402.     }
  403.  
  404.     /**
  405.      * Sets the allow option
  406.      *
  407.      * @param  int $allow
  408.      * @return Hostname Provides a fluent interface
  409.      */
  410.     public function setAllow($allow)
  411.     {
  412.         $this->options['allow'] = $allow;
  413.         return $this;
  414.     }
  415.  
  416.     /**
  417.      * Returns the set idn option
  418.      *
  419.      * @return bool
  420.      */
  421.     public function getIdnCheck()
  422.     {
  423.         return $this->options['useIdnCheck'];
  424.     }
  425.  
  426.     /**
  427.      * Set whether IDN domains are validated
  428.      *
  429.      * This only applies when DNS hostnames are validated
  430.      *
  431.      * @param  bool $useIdnCheck Set to true to validate IDN domains
  432.      * @return Hostname
  433.      */
  434.     public function useIdnCheck($useIdnCheck)
  435.     {
  436.         $this->options['useIdnCheck'] = (bool) $useIdnCheck;
  437.         return $this;
  438.     }
  439.  
  440.     /**
  441.      * Returns the set tld option
  442.      *
  443.      * @return bool
  444.      */
  445.     public function getTldCheck()
  446.     {
  447.         return $this->options['useTldCheck'];
  448.     }
  449.  
  450.     /**
  451.      * Set whether the TLD element of a hostname is validated
  452.      *
  453.      * This only applies when DNS hostnames are validated
  454.      *
  455.      * @param  bool $useTldCheck Set to true to validate TLD elements
  456.      * @return Hostname
  457.      */
  458.     public function useTldCheck($useTldCheck)
  459.     {
  460.         $this->options['useTldCheck'] = (bool) $useTldCheck;
  461.         return $this;
  462.     }
  463.  
  464.     /**
  465.      * Defined by Interface
  466.      *
  467.      * Returns true if and only if the $value is a valid hostname with respect to the current allow option
  468.      *
  469.      * @param  string $value
  470.      * @return bool
  471.      */
  472.     public function isValid($value)
  473.     {
  474.         if (!is_string($value)) {
  475.             $this->error(self::INVALID);
  476.             return false;
  477.         }
  478.  
  479.         $this->setValue($value);
  480.         // Check input against IP address schema
  481.         if (preg_match('/^[0-9a-f:.]*$/i', $value) && $this->getIpValidator()
  482.             ->setTranslator($this->getTranslator())
  483.             ->isValid($value)) {
  484.             if (!($this->getAllow() & self::ALLOW_IP)) {
  485.                 $this->error(self::IP_ADDRESS_NOT_ALLOWED);
  486.                 return false;
  487.             } else {
  488.                 return true;
  489.             }
  490.         }
  491.  
  492.         // Local hostnames are allowed to be partial (ending '.')
  493.         if ($this->getAllow() & self::ALLOW_LOCAL) {
  494.             if (substr($value, -1) === '.') {
  495.                 $value = substr($value, 0, -1);
  496.                 if (substr($value, -1) === '.') {
  497.                     // Empty hostnames (ending '..') are not allowed
  498.                     $this->error(self::INVALID_LOCAL_NAME);
  499.                     return false;
  500.                 }
  501.             }
  502.         }
  503.  
  504.         $domainParts = explode('.', $value);
  505.  
  506.         // Prevent partial IP V4 addresses (ending '.')
  507.         if ((count($domainParts) == 4) && preg_match('/^[0-9.a-e:.]*$/i', $value) && $this->getIpValidator()
  508.             ->setTranslator($this->getTranslator())
  509.             ->isValid($value)) {
  510.             $this->error(self::INVALID_LOCAL_NAME);
  511.         }
  512.  
  513.         $utf8StrWrapper = StringUtils::getWrapper('UTF-8');
  514.  
  515.         // Check input against DNS hostname schema
  516.         if ((count($domainParts) > 1)
  517.             && ($utf8StrWrapper->strlen($value) >= 4)
  518.             && ($utf8StrWrapper->strlen($value) <= 254))
  519.         {
  520.             $status = false;
  521.  
  522.             do {
  523.                 // First check TLD
  524.                 $matches = array();
  525.                 if (preg_match('/([^.]{2,10})$/iu', end($domainParts), $matches)
  526.                     || (array_key_exists(end($domainParts), $this->validIdns))) {
  527.                     reset($domainParts);
  528.  
  529.                     // Hostname characters are: *(label dot)(label dot label); max 254 chars
  530.                     // label: id-prefix [*ldh{61} id-prefix]; max 63 chars
  531.                     // id-prefix: alpha / digit
  532.                     // ldh: alpha / digit / dash
  533.  
  534.                     // Match TLD against known list
  535.                     $this->tld = strtoupper($matches[1]);
  536.                     if ($this->getTldCheck()) {
  537.                         if (!in_array(strtolower($this->tld), $this->validTlds)
  538.                             && !in_array($this->tld, $this->validTlds)) {
  539.                             $this->error(self::UNKNOWN_TLD);
  540.                             $status = false;
  541.                             break;
  542.                         }
  543.                         // We have already validated that the TLD is fine. We don't want it to go through the below
  544.                         // checks as new UTF-8 TLDs will incorrectly fail if there is no IDN regex for it.
  545.                         array_pop($domainParts);
  546.                     }
  547.  
  548.                     /**
  549.                      * Match against IDN hostnames
  550.                      * Note: Keep label regex short to avoid issues with long patterns when matching IDN hostnames
  551.                      *
  552.                      * @see Hostname\Interface
  553.                      */
  554.                     $regexChars = array(0 => '/^[a-z0-9\x2d]{1,63}$/i');
  555.                     if ($this->getIdnCheck() && isset($this->validIdns[$this->tld])) {
  556.                         if (is_string($this->validIdns[$this->tld])) {
  557.                             $regexChars += include __DIR__ . '/' . $this->validIdns[$this->tld];
  558.                         } else {
  559.                             $regexChars += $this->validIdns[$this->tld];
  560.                         }
  561.                     }
  562.  
  563.                     // Check each hostname part
  564.                     $check = 0;
  565.                     foreach ($domainParts as $domainPart) {
  566.                         // Decode Punycode domain names to IDN
  567.                         if (strpos($domainPart, 'xn--') === 0) {
  568.                             $domainPart = $this->decodePunycode(substr($domainPart, 4));
  569.                             if ($domainPart === false) {
  570.                                 return false;
  571.                             }
  572.                         }
  573.  
  574.                         // Check dash (-) does not start, end or appear in 3rd and 4th positions
  575.                         if (($utf8StrWrapper->strpos($domainPart, '-') === 0)
  576.                             || (($utf8StrWrapper->strlen($domainPart) > 2) && ($utf8StrWrapper->strpos($domainPart, '-', 2) == 2) && ($utf8StrWrapper->strpos($domainPart, '-', 3) == 3))
  577.                             || ($utf8StrWrapper->strpos($domainPart, '-') === ($utf8StrWrapper->strlen($domainPart) - 1))) {
  578.                             $this->error(self::INVALID_DASH);
  579.                             $status = false;
  580.                             break 2;
  581.                         }
  582.  
  583.                         // Check each domain part
  584.                         $checked = false;
  585.                         foreach ($regexChars as $regexKey => $regexChar) {
  586.                             ErrorHandler::start();
  587.                             $status = preg_match($regexChar, $domainPart);
  588.                             ErrorHandler::stop();
  589.                             if ($status > 0) {
  590.                                 $length = 63;
  591.                                 if (array_key_exists($this->tld, $this->idnLength)
  592.                                     && (array_key_exists($regexKey, $this->idnLength[$this->tld]))) {
  593.                                     $length = $this->idnLength[$this->tld];
  594.                                 }
  595.  
  596.                                 if ($utf8StrWrapper->strlen($domainPart) > $length) {
  597.                                     $this->error(self::INVALID_HOSTNAME);
  598.                                     $status = false;
  599.                                 } else {
  600.                                     $checked = true;
  601.                                     break;
  602.                                 }
  603.                             }
  604.                         }
  605.  
  606.                         if ($checked) {
  607.                             ++$check;
  608.                         }
  609.                     }
  610.  
  611.                     // If one of the labels doesn't match, the hostname is invalid
  612.                     if ($check !== count($domainParts)) {
  613.                         $this->error(self::INVALID_HOSTNAME_SCHEMA);
  614.                         $status = false;
  615.                     }
  616.                 } else {
  617.                     // Hostname not long enough
  618.                     $this->error(self::UNDECIPHERABLE_TLD);
  619.                     $status = false;
  620.                 }
  621.             } while (false);
  622.  
  623.             // If the input passes as an Internet domain name, and domain names are allowed, then the hostname
  624.             // passes validation
  625.             if ($status && ($this->getAllow() & self::ALLOW_DNS)) {
  626.                 return true;
  627.             }
  628.         } elseif ($this->getAllow() & self::ALLOW_DNS) {
  629.             $this->error(self::INVALID_HOSTNAME);
  630.             $status = false;
  631.         }
  632.  
  633.         // Check for URI Syntax (RFC3986)
  634.         if ($this->getAllow() & self::ALLOW_URI) {
  635.             if (preg_match("/^([a-zA-Z0-9-._~!$&\'()*+,;=]|%[[:xdigit:]]{2}){1,254}$/i", $value)) {
  636.                 return true;
  637.             } else {
  638.                 $this->error(self::INVALID_URI);
  639.             }
  640.         }
  641.  
  642.         // Check input against local network name schema; last chance to pass validation
  643.         ErrorHandler::start();
  644.         $regexLocal = '/^(([a-zA-Z0-9\x2d]{1,63}\x2e)*[a-zA-Z0-9\x2d]{1,63}[\x2e]{0,1}){1,254}$/';
  645.         $status = preg_match($regexLocal, $value);
  646.         ErrorHandler::stop();
  647.  
  648.         // If the input passes as a local network name, and local network names are allowed, then the
  649.         // hostname passes validation
  650.         $allowLocal = $this->getAllow() & self::ALLOW_LOCAL;
  651.         if ($status && $allowLocal) {
  652.             return true;
  653.         }
  654.  
  655.         // If the input does not pass as a local network name, add a message
  656.         if (!$status) {
  657.             $this->error(self::INVALID_LOCAL_NAME);
  658.         }
  659.  
  660.         // If local network names are not allowed, add a message
  661.         if ($status && !$allowLocal) {
  662.             $this->error(self::LOCAL_NAME_NOT_ALLOWED);
  663.         }
  664.  
  665.         return false;
  666.     }
  667.  
  668.     /**
  669.      * Decodes a punycode encoded string to it's original utf8 string
  670.      * Returns false in case of a decoding failure.
  671.      *
  672.      * @param  string $encoded Punycode encoded string to decode
  673.      * @return string|false
  674.      */
  675.     protected function decodePunycode($encoded)
  676.     {
  677.         if (!preg_match('/^[a-z0-9-]+$/i', $encoded)) {
  678.             // no punycode encoded string
  679.             $this->error(self::CANNOT_DECODE_PUNYCODE);
  680.             return false;
  681.         }
  682.  
  683.         $decoded = array();
  684.         $separator = strrpos($encoded, '-');
  685.         if ($separator > 0) {
  686.             for ($x = 0; $x < $separator; ++$x) {
  687.                 // prepare decoding matrix
  688.                 $decoded[] = ord($encoded[$x]);
  689.             }
  690.         }
  691.  
  692.         $lengthd = count($decoded);
  693.         $lengthe = strlen($encoded);
  694.  
  695.         // decoding
  696.         $init  = true;
  697.         $base  = 72;
  698.         $index = 0;
  699.         $char  = 0x80;
  700.  
  701.         for ($indexe = ($separator) ? ($separator + 1) : 0; $indexe < $lengthe; ++$lengthd) {
  702.             for ($oldIndex = $index, $pos = 1, $key = 36; 1; $key += 36) {
  703.                 $hex   = ord($encoded[$indexe++]);
  704.                 $digit = ($hex - 48 < 10) ? $hex - 22
  705.                        : (($hex - 65 < 26) ? $hex - 65
  706.                        : (($hex - 97 < 26) ? $hex - 97
  707.                        : 36));
  708.  
  709.                 $index += $digit * $pos;
  710.                 $tag    = ($key <= $base) ? 1 : (($key >= $base + 26) ? 26 : ($key - $base));
  711.                 if ($digit < $tag) {
  712.                     break;
  713.                 }
  714.  
  715.                 $pos = (int) ($pos * (36 - $tag));
  716.             }
  717.  
  718.             $delta   = intval($init ? (($index - $oldIndex) / 700) : (($index - $oldIndex) / 2));
  719.             $delta  += intval($delta / ($lengthd + 1));
  720.             for ($key = 0; $delta > 910 / 2; $key += 36) {
  721.                 $delta = intval($delta / 35);
  722.             }
  723.  
  724.             $base   = intval($key + 36 * $delta / ($delta + 38));
  725.             $init   = false;
  726.             $char  += (int) ($index / ($lengthd + 1));
  727.             $index %= ($lengthd + 1);
  728.             if ($lengthd > 0) {
  729.                 for ($i = $lengthd; $i > $index; $i--) {
  730.                     $decoded[$i] = $decoded[($i - 1)];
  731.                 }
  732.             }
  733.  
  734.             $decoded[$index++] = $char;
  735.         }
  736.  
  737.         // convert decoded ucs4 to utf8 string
  738.         foreach ($decoded as $key => $value) {
  739.             if ($value < 128) {
  740.                 $decoded[$key] = chr($value);
  741.             } elseif ($value < (1 << 11)) {
  742.                 $decoded[$key]  = chr(192 + ($value >> 6));
  743.                 $decoded[$key] .= chr(128 + ($value & 63));
  744.             } elseif ($value < (1 << 16)) {
  745.                 $decoded[$key]  = chr(224 + ($value >> 12));
  746.                 $decoded[$key] .= chr(128 + (($value >> 6) & 63));
  747.                 $decoded[$key] .= chr(128 + ($value & 63));
  748.             } elseif ($value < (1 << 21)) {
  749.                 $decoded[$key]  = chr(240 + ($value >> 18));
  750.                 $decoded[$key] .= chr(128 + (($value >> 12) & 63));
  751.                 $decoded[$key] .= chr(128 + (($value >> 6) & 63));
  752.                 $decoded[$key] .= chr(128 + ($value & 63));
  753.             } else {
  754.                 $this->error(self::CANNOT_DECODE_PUNYCODE);
  755.                 return false;
  756.             }
  757.         }
  758.  
  759.         return implode($decoded);
  760.     }
  761. }
# Change User Description Committed
#1 18334 Liz Lam initial add of jambox 9 years ago