316 lines
8.6 KiB
PHP
316 lines
8.6 KiB
PHP
<?php
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/**
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* This class is used to negotiate language displayed to user.
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* Reads browser preferences and chooses the best language from list
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*/
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class LocaleNegotiator
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{
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private $accepted_langs = [];
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private $default_language;
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private $all_locales = array(
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'af_ZA' => 'Afrikaans',
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'am_ET' => 'አማርኛ',
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'ar_AE' => 'العربية',
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'ar_BH' => 'العربية',
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'ar_DZ' => 'العربية',
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'ar_EG' => 'العربية',
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'ar_IQ' => 'العربية',
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'ar_JO' => 'العربية',
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'ar_KW' => 'العربية',
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'ar_LB' => 'العربية',
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'ar_LY' => 'العربية',
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'ar_MA' => 'العربية',
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'arn_CL' => 'Mapuche',
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'ar_OM' => 'العربية',
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'ar_QA' => 'العربية',
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'ar_SA' => 'العربية',
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'ar_SY' => 'العربية',
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'ar_TN' => 'العربية',
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'ar_YE' => 'العربية',
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'as_IN' => 'অসমীয়া',
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'az_Cyrl_AZ' => 'Азәрбајҹан',
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'az_Latn_AZ' => 'Azərbaycan',
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'ba_RU' => 'Bashkir',
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'be_BY' => 'Беларуская',
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'bg_BG' => 'Български',
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'bn_BD' => 'বাংলা',
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'bn_IN' => 'বাংলা',
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'bo_CN' => 'བོད་སྐད་',
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'br_FR' => 'Brezhoneg',
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'bs_Cyrl_BA' => 'Босански',
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'bs_Latn_BA' => 'Bosanski',
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'ca_ES' => 'Català',
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'co_FR' => 'Corsican',
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'cs_CZ' => 'Čeština',
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'cy_GB' => 'Cymraeg',
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'da_DK' => 'Dansk',
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'de_AT' => 'Deutsch',
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'de_CH' => 'Deutsch',
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'de_DE' => 'Deutsch',
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'de_LI' => 'Deutsch',
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'de_LU' => 'Deutsch',
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'dsb_DE' => 'Dolnoserbšćina',
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'dv_MV' => 'Divehi',
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'el_GR' => 'Ελληνικά',
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'en_029' => 'English',
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'en_AU' => 'English',
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'en_BZ' => 'English',
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'en_CA' => 'English',
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'en_GB' => 'English',
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'en_IE' => 'English',
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'en_IN' => 'English',
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'en_JM' => 'English',
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'en_MY' => 'English',
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'en_NZ' => 'English',
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'en_PH' => 'English',
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'en_SG' => 'English',
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'en_TT' => 'English',
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'en_US' => 'English',
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'en_ZA' => 'English',
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'en_ZW' => 'English',
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'es_AR' => 'Español',
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'es_BO' => 'Español',
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'es_CL' => 'Español',
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'es_CO' => 'Español',
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'es_CR' => 'Español',
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'es_DO' => 'Español',
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'es_EC' => 'Español',
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'es_ES' => 'Español',
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'es_GT' => 'Español',
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'es_HN' => 'Español',
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'es_MX' => 'Español',
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'es_NI' => 'Español',
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'es_PA' => 'Español',
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'es_PE' => 'Español',
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'es_PR' => 'Español',
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'es_PY' => 'Español',
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'es_SV' => 'Español',
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'es_US' => 'Español',
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'es_UY' => 'Español',
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'es_VE' => 'Español',
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'et_EE' => 'Eesti',
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'eu_ES' => 'Euskara',
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'fa_IR' => 'فارسی',
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'fi_FI' => 'Suomi',
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'fil_PH' => 'Filipino',
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'fo_FO' => 'Føroyskt',
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'fr_BE' => 'Français',
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'fr_CA' => 'Français',
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'fr_CH' => 'Français',
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'fr_FR' => 'Français',
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'fr_LU' => 'Français',
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'fr_MC' => 'Français',
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'fy_NL' => 'West_frysk',
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'ga_IE' => 'Gaeilge',
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'gd_GB' => 'Gàidhlig',
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'gl_ES' => 'Galego',
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'gsw_FR' => 'Schwiizertüütsch',
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'gu_IN' => 'ગુજરાતી',
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'ha_Latn_NG' => 'Hausa',
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'he_IL' => 'עברית',
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'hi_IN' => 'हिन्दी',
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'hr_BA' => 'Hrvatski',
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'hr_HR' => 'Hrvatski',
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'hsb_DE' => 'Hornjoserbšćina',
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'hu_HU' => 'Magyar',
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'hy_AM' => 'Հայերեն',
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'id_ID' => 'Bahasa indonesia',
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'ig_NG' => 'Igbo',
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'ii_CN' => 'ꆈꌠꉙ',
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'is_IS' => 'Íslenska',
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'it_CH' => 'Italiano',
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'it_IT' => 'Italiano',
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'iu_Cans_CA' => 'Inuktitut',
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'iu_Latn_CA' => 'Inuktitut',
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'ja_JP' => '日本語',
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'ka_GE' => 'ქართული',
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'kk_KZ' => 'Қазақ тілі',
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'kl_GL' => 'Kalaallisut',
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'km_KH' => 'ខ្មែរ',
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'kn_IN' => 'ಕನ್ನಡ',
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'kok_IN' => 'कोंकणी',
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'ko_KR' => '한국어',
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'ky_KG' => 'Кыргызча',
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'lb_LU' => 'Lëtzebuergesch',
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'lo_LA' => 'ລາວ',
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'lt_LT' => 'Lietuvių',
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'lv_LV' => 'Latviešu',
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'mi_NZ' => 'Maori',
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'mk_MK' => 'Македонски',
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'ml_IN' => 'മലയാളം',
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'mn_MN' => 'Монгол',
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'mn_Mong_CN' => 'Монгол',
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'moh_CA' => 'Mohawk',
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'mr_IN' => 'मराठी',
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'ms_BN' => 'Bahasa melayu',
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'ms_MY' => 'Bahasa melayu',
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'mt_MT' => 'Malti',
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'nb_NO' => 'Norsk bokmål',
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'ne_NP' => 'नेपाली',
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'nl_BE' => 'Nederlands',
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'nl_NL' => 'Nederlands',
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'nn_NO' => 'Nynorsk',
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'nb_NO' => 'Norsk Bokmål',
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'nso_ZA' => 'Northern sotho',
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'oc_FR' => 'Occitan',
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'or_IN' => 'ଓଡ଼ିଆ',
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'pa_IN' => 'ਪੰਜਾਬੀ',
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'pl_PL' => 'Polski',
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'prs_AF' => 'Prs',
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'ps_AF' => 'پښتو',
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'pt_BR' => 'Português',
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'pt_PT' => 'Português',
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'qut_GT' => 'Qut',
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'quz_BO' => 'Quz',
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'quz_EC' => 'Quz',
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'quz_PE' => 'Quz',
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'rm_CH' => 'Rumantsch',
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'ro_RO' => 'Română',
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'ru_RU' => 'Русский',
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'rw_RW' => 'Kinyarwanda',
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'sah_RU' => 'Саха тыла',
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'sa_IN' => 'Sanskrit',
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'se_FI' => 'Davvisámegiella',
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'se_NO' => 'Davvisámegiella',
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'se_SE' => 'Davvisámegiella',
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'si_LK' => 'සිංහල',
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'sk_SK' => 'Slovenčina',
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'sl_SI' => 'Slovenščina',
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'sma_NO' => 'Southern sami',
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'sma_SE' => 'Southern sami',
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'smj_NO' => 'Lule sami',
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'smj_SE' => 'Lule sami',
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'smn_FI' => 'Anarâškielâ',
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'sms_FI' => 'Skolt sami',
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'sq_AL' => 'Shqip',
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'sr_Cyrl_BA' => 'Српски',
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'sr_Cyrl_CS' => 'Српски',
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'sr_Cyrl_ME' => 'Српски',
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'sr_Cyrl_RS' => 'Српски',
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'sr_Latn_BA' => 'Srpski',
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'sr_Latn_CS' => 'Srpski',
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'sr_Latn_ME' => 'Srpski',
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'sr_Latn_RS' => 'Srpski',
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'sr_RS' => 'Srpski',
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'sv_FI' => 'Svenska',
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'sv_SE' => 'Svenska',
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'sw_KE' => 'Kiswahili',
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'syr_SY' => 'Syriac',
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'ta_IN' => 'தமிழ்',
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'te_IN' => 'తెలుగు',
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'tg_Cyrl_TJ' => 'Tajik',
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'th_TH' => 'ไทย',
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'tk_TM' => 'Turkmen',
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'tn_ZA' => 'Tswana',
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'tr_TR' => 'Türkçe',
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'tt_RU' => 'Tatar',
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'tzm_Latn_DZ' => 'Tamaziɣt',
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'ug_CN' => 'ئۇيغۇرچە',
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'uk_UA' => 'Українська',
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'ur_PK' => 'اردو',
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'uz_Cyrl_UZ' => 'Ўзбек',
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'uz_Latn_UZ' => 'Oʻzbekcha',
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'vi_VN' => 'Tiếng việt',
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'wo_SN' => 'Wolof',
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'xh_ZA' => 'Xhosa',
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'yo_NG' => 'Èdè yorùbá',
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'zh_CN' => '中文',
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'zh_HK' => '中文',
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'zh_MO' => '中文',
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'zh_SG' => '中文',
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'zh_TW' => '中文',
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'zu_ZA' => 'Isizulu',
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);
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/**
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* This method scans for languages and creates a list of language and its name (localized ofc.)
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* @param String $default_language language displayed to user in case no suitable lang is found
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*/
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function __construct($default_language)
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{
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$tmp = glob(__DIR__ . '/../locale/*' , GLOB_ONLYDIR);
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$this->default_language = $default_language;
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//Works only if the server supports the locale
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//This basically means $accepted_langs[<lang_code>] = "<lang name>";
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foreach ($tmp as $value) {
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$lang = basename($value);
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$this->accepted_langs[$lang] = $this->all_locales[$lang];
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}
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}
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/**
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* Returns list of accepted langs so it can be reused for rendering language list for switching...
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*/
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public function get_accepted_langs(){
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return $this->accepted_langs;
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}
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/**
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* This method does the actual negotiation. It has override parameter in case user wants to switch
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* languages.
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* @param String $override adds language to list of preffered languages with highest priority
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* @return String language code that matched best with browser preferences
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*/
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public function negotiate($override = null){
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$langs = [];
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if (isset($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
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$http_accept_language = str_replace("-", "_", $_SERVER['HTTP_ACCEPT_LANGUAGE']);
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preg_match_all('/([a-z]{1,8}(-[a-z]{1,8})?)\s*(;\s*q\s*=\s*(1|0\.[0-9]+))?/i', $http_accept_language, $lang_parse);
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if (count($lang_parse[1])) {
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$langs = array_combine($lang_parse[1], $lang_parse[4]);
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foreach ($langs as $lang => $val) {
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//If browser didn't send quality of language, it is 1 by default
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if ($val === '') $langs[$lang] = 1;
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}
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if (isset($override))
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{
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//More important than the best lang of browser
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$langs[$override] = 2;
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}
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arsort($langs, SORT_NUMERIC);
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}
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}
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//So we have lang code as value
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$langs = array_flip($langs);
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//False unless we set it, so we know to set default locale
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$best_match = false;
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//So we have also lang code as value
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$accepted_langs = array_flip($this->accepted_langs);
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global $lang;
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foreach ($langs as $lang) {
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if (strlen($lang)>2){
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if (in_array($lang, $accepted_langs)){
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$best_match = $lang;
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break;
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}
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}else{
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$possible = array_filter($accepted_langs, function($key) {
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global $lang;
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return strpos($key, $lang) === 0;
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});
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if (count($possible)){
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foreach ($possible as $value) {
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$best_match = $value;
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}
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break;
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}
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}
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}
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if ($best_match === false){
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$best_match = $this->default_language;
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}
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return $best_match;
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}
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}
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