/** * Global Constants * Belongs to LocalCDN (since 2020-02-26) * (Origin: Decentraleyes) * * @author Thomas Rientjes * @since 2017-10-27 * * @author nobody * @since 2020-02-26 * * @license MPL 2.0 * * This Source Code Form is subject to the terms of the Mozilla Public * License, v. 2.0. If a copy of the MPL was not distributed with this file, * You can obtain one at http://mozilla.org/MPL/2.0/. */ 'use strict'; /** * Constants */ const Address = { 'ANY': '*://*/*', 'ANY_PATH': '/*', 'ANY_PROTOCOL': '*://', 'CHROME': 'chrome:', 'CHROME_EXTENSION': 'chrome-extension:', 'LOCALCDN': 'localcdn.org', 'EXAMPLE': 'example.org', 'HTTP': 'http:', 'HTTPS': 'https:', 'RESOURCE_PATH': '/resources', 'ROOT_PATH': '/', 'WWW_PREFIX': 'www.' }; const Environment = { 'STABLE': 'stable', 'STAGING': 'staging' }; const Header = { 'COOKIE': 'Cookie', 'ORIGIN': 'Origin', 'REFERER': 'Referer' }; const MessageResponse = { 'ASYNCHRONOUS': true, 'SYNCHRONOUS': false }; const Resource = { 'MAPPING_EXPRESSION': /\.map$/i, 'VERSION_EXPRESSION': /(?:\d{1,2}\.){1,3}\d{1,2}(?:-\d)?|latest/, 'SINGLE_NUMBER_EXPRESSION': /^\D+@?\d.*$/, 'MATHJAX': /\/\w.*(?:\d{1,2}\.){1,3}\d{1,2}(?:-\d)?\/|\/(mathjax\/)?latest\//, 'VERSION_PLACEHOLDER': '{version}' }; const BadgeSetting = { 'TYPE': 'default', 'COUNTER_PREVIEW_BADGE': 'counter-preview-badge', 'HTML_ICON_BADGE_PREVIEW': 'icon-badge-preview', 'PRE_BADGED_BACKGROUND_COLOR': 'pre-badged-background-color', 'BADGED_BACKGROUND_COLOR': 'badged-background-color', 'PRE_BADGED_TEXT_COLOR': 'pre-badged-text-color', 'BADGED_TEXT_COLOR': 'badged-text-color', 'RESTORE_BACKGROUND_COLOR': 'restore-background-color', 'RESTORE_TEXT_COLOR': 'restore-text-color', 'HEX_BACKGROUND_COLOR': '#666666', 'HEX_TEXT_COLOR': '#FFFFFF', }; const BadgeSettingHTMLFilter = { 'TYPE': 'html-filter', 'COUNTER_PREVIEW_BADGE': 'html-counter-preview-badge', 'HTML_ICON_BADGE_PREVIEW': 'html-icon-badge-preview', 'PRE_BADGED_BACKGROUND_COLOR': 'html-pre-badged-background-color', 'BADGED_BACKGROUND_COLOR': 'html-badged-background-color', 'PRE_BADGED_TEXT_COLOR': 'html-pre-badged-text-color', 'BADGED_TEXT_COLOR': 'html-badged-text-color', 'RESTORE_BACKGROUND_COLOR': 'html-restore-background-color', 'RESTORE_TEXT_COLOR': 'html-restore-text-color', 'HEX_BACKGROUND_COLOR': '#FF0000', 'HEX_TEXT_COLOR': '#FFFFFF', }; const BadgeSettingMissingResource = { 'TYPE': 'missing-resource', 'COUNTER_PREVIEW_BADGE': 'missing-counter-preview-badge', 'HTML_ICON_BADGE_PREVIEW': 'missing-icon-badge-preview', 'PRE_BADGED_BACKGROUND_COLOR': 'missing-pre-badged-background-color', 'BADGED_BACKGROUND_COLOR': 'missing-badged-background-color', 'PRE_BADGED_TEXT_COLOR': 'missing-pre-badged-text-color', 'BADGED_TEXT_COLOR': 'missing-badged-text-color', 'RESTORE_BACKGROUND_COLOR': 'missing-restore-background-color', 'RESTORE_TEXT_COLOR': 'missing-restore-text-color', 'HEX_BACKGROUND_COLOR': '#0000FF', 'HEX_TEXT_COLOR': '#FFFFFF', }; const Setting = { 'AMOUNT_INJECTED': 'amountInjected', 'BLOCK_MISSING': 'blockMissing', 'DISABLE_PREFETCH': 'disablePrefetch', 'ENFORCE_STAGING': 'enforceStaging', 'SHOW_ICON_BADGE': 'showIconBadge', 'UPDATE_NOTIFICATION': 'updateNotification', 'STRIP_METADATA': 'stripMetadata', 'LAST_MAPPING_UPDATE': 'lastMappingUpdate', 'ALLOWLISTED_DOMAINS': 'allowlistedDomains', 'XHR_TEST_DOMAIN': 'xhrTestDomain', 'LOGGING': 'enableLogging', 'DOMAINS_MANIPULATE_DOM': 'domainsManipulateDOM', 'NEGATE_HTML_FILTER_LIST': 'negateHtmlFilterList', 'BLOCK_GOOGLE_FONTS': 'blockGoogleFonts', 'SELECTED_ICON': 'selectedIcon', 'INTERNAL_STATISTICS': 'internalStatistics', 'INTERNAL_STATISTICS_DATA': 'internalStatisticsData', 'DEFAULT_RANGE_STATISTIC': 'defaultRangeStatistic', 'ALLOWED_DOMAINS_GOOGLE_FONTS': 'allowedDomainsGoogleFonts', 'STORAGE_TYPE': 'storageType', 'BADGE_DEFAULT_BACKGROUND_COLOR': 'badgeDefaultBackgroundColor', 'BADGE_DEFAULT_TEXT_COLOR': 'badgeDefaultTextColor', 'BADGE_HTML_FILTER_BACKGROUND_COLOR': 'badgeHTMLFilterBackgroundColor', 'BADGE_HTML_FILTER_TEXT_COLOR': 'badgeHTMLfilterTextColor', 'BADGE_MISSING_RESOURCE_BACKGROUND_COLOR': 'badgeMissingResourceBackgroundColor', 'BADGE_MISSING_RESOURCE_TEXT_COLOR': 'badgeMissingResourceTextColor', 'HIDE_DONATION_BUTTON': 'hideDonationButton', 'CHANGE_BADGE_COLOR_MISSING_RESOURCES': 'changeBadgeColorMissingResources', }; const SettingDefaults = { [Setting.ALLOWED_DOMAINS_GOOGLE_FONTS]: {}, [Setting.AMOUNT_INJECTED]: 0, [Setting.BLOCK_GOOGLE_FONTS]: true, [Setting.BLOCK_MISSING]: false, [Setting.DISABLE_PREFETCH]: true, [Setting.DOMAINS_MANIPULATE_DOM]: {}, [Setting.LOGGING]: false, [Setting.ENFORCE_STAGING]: false, [Setting.UPDATE_NOTIFICATION]: 0, [Setting.INTERNAL_STATISTICS]: false, [Setting.INTERNAL_STATISTICS_DATA]: {}, [Setting.DEFAULT_RANGE_STATISTIC]: 'week', [Setting.LAST_MAPPING_UPDATE]: '2020-01-01', [Setting.NEGATE_HTML_FILTER_LIST]: false, [Setting.SELECTED_ICON]: 'Default', [Setting.SHOW_ICON_BADGE]: true, [Setting.STORAGE_TYPE]: 'local', [Setting.STRIP_METADATA]: true, [Setting.ALLOWLISTED_DOMAINS]: {}, [Setting.XHR_TEST_DOMAIN]: Address.LOCALCDN, [Setting.BADGE_DEFAULT_BACKGROUND_COLOR]: BadgeSetting.HEX_BACKGROUND_COLOR, [Setting.BADGE_DEFAULT_TEXT_COLOR]: BadgeSetting.HEX_TEXT_COLOR, [Setting.BADGE_HTML_FILTER_BACKGROUND_COLOR]: BadgeSettingHTMLFilter.HEX_BACKGROUND_COLOR, [Setting.BADGE_HTML_FILTER_TEXT_COLOR]: BadgeSettingHTMLFilter.HEX_TEXT_COLOR, [Setting.BADGE_MISSING_RESOURCE_BACKGROUND_COLOR]: BadgeSettingMissingResource.HEX_BACKGROUND_COLOR, [Setting.BADGE_MISSING_RESOURCE_TEXT_COLOR]: BadgeSettingMissingResource.HEX_TEXT_COLOR, [Setting.HIDE_DONATION_BUTTON]: false, [Setting.CHANGE_BADGE_COLOR_MISSING_RESOURCES]: false, }; const WebRequest = { 'GET': 'GET', 'BLOCKING': 'blocking', 'HEADERS': 'requestHeaders', 'RESPONSE_HEADERS': 'responseHeaders', 'EXTRA_HEADERS': 'extraHeaders' }; const WebRequestType = { 'MAIN_FRAME': 'main_frame', 'SUB_FRAME': 'sub_frame', 'XHR': 'xmlhttprequest' }; const Allowlist = { 'TRIM_EXPRESSION': /^\n+|\n+$/g, 'VALUE_SEPARATOR': '\n' }; const BrowserType = { 'CHROMIUM': chrome.runtime.getURL('/').startsWith('chrome-extension'), 'FIREFOX': chrome.runtime.getURL('/').startsWith('moz-extension') }; const IconType = { 'Default': { 'Enabled': { '16': chrome.runtime.getURL('icons/action/default/icon16-default.png'), '18': chrome.runtime.getURL('icons/action/default/icon18-default.png'), '19': chrome.runtime.getURL('icons/action/default/icon19-default.png'), '32': chrome.runtime.getURL('icons/action/default/icon32-default.png'), '36': chrome.runtime.getURL('icons/action/default/icon36-default.png'), '38': chrome.runtime.getURL('icons/action/default/icon38-default.png'), '64': chrome.runtime.getURL('icons/action/default/icon64-default.png') }, 'Disabled': { '16': chrome.runtime.getURL('icons/action/default/icon16-disabled.png'), '18': chrome.runtime.getURL('icons/action/default/icon18-disabled.png'), '19': chrome.runtime.getURL('icons/action/default/icon19-disabled.png'), '32': chrome.runtime.getURL('icons/action/default/icon32-disabled.png'), '36': chrome.runtime.getURL('icons/action/default/icon36-disabled.png'), '38': chrome.runtime.getURL('icons/action/default/icon38-disabled.png'), '64': chrome.runtime.getURL('icons/action/default/icon64-disabled.png') } }, 'Light': { 'Enabled': { '16': chrome.runtime.getURL('icons/action/light/icon16-default.png'), '18': chrome.runtime.getURL('icons/action/light/icon18-default.png'), '19': chrome.runtime.getURL('icons/action/light/icon19-default.png'), '32': chrome.runtime.getURL('icons/action/light/icon32-default.png'), '36': chrome.runtime.getURL('icons/action/light/icon36-default.png'), '38': chrome.runtime.getURL('icons/action/light/icon38-default.png'), '64': chrome.runtime.getURL('icons/action/light/icon64-default.png') }, 'Disabled': { '16': chrome.runtime.getURL('icons/action/light/icon16-disabled.png'), '18': chrome.runtime.getURL('icons/action/light/icon18-disabled.png'), '19': chrome.runtime.getURL('icons/action/light/icon19-disabled.png'), '32': chrome.runtime.getURL('icons/action/light/icon32-disabled.png'), '36': chrome.runtime.getURL('icons/action/light/icon36-disabled.png'), '38': chrome.runtime.getURL('icons/action/light/icon38-disabled.png'), '64': chrome.runtime.getURL('icons/action/light/icon64-disabled.png') } }, 'Grey': { 'Enabled': { '16': chrome.runtime.getURL('icons/action/grey/icon16-default.png'), '18': chrome.runtime.getURL('icons/action/grey/icon18-default.png'), '19': chrome.runtime.getURL('icons/action/grey/icon19-default.png'), '32': chrome.runtime.getURL('icons/action/grey/icon32-default.png'), '36': chrome.runtime.getURL('icons/action/grey/icon36-default.png'), '38': chrome.runtime.getURL('icons/action/grey/icon38-default.png'), '64': chrome.runtime.getURL('icons/action/grey/icon64-default.png') }, 'Disabled': { '16': chrome.runtime.getURL('icons/action/grey/icon16-disabled.png'), '18': chrome.runtime.getURL('icons/action/grey/icon18-disabled.png'), '19': chrome.runtime.getURL('icons/action/grey/icon19-disabled.png'), '32': chrome.runtime.getURL('icons/action/grey/icon32-disabled.png'), '36': chrome.runtime.getURL('icons/action/grey/icon36-disabled.png'), '38': chrome.runtime.getURL('icons/action/grey/icon38-disabled.png'), '64': chrome.runtime.getURL('icons/action/grey/icon64-disabled.png') } } }; const Regex = { 'GOOGLE_FONTS': /fonts\.(googleapis|gstatic)\.com\/(?!.*(Material\+Icons|materialicons).*).*/, 'GOOGLE_MATERIAL_ICONS': /fonts\.(googleapis|gstatic)\.com\/.*\?family=.*Material\+Icons/, 'JSDELIVR_COMBINE': /cdn\.jsdelivr\.net.*\/combine.*jquery.*hogan.*algoliasearch.*autocomplete.*/, 'BOOTSTRAP_DATEPICKER_3': /\/bootstrap-datepicker3.*\.css/, 'BOOTSTRAP_DATEPICKER': /\/bootstrap-datepicker.*\.css/, 'FONT_AWESOME': /use\.fontawesome\.com\/fa-loader\.css/, 'FONT_AWESOME_WITH_CODE': /use\.fontawesome\.com\/[a-z0-9]{10}\.(js|css)/, 'FONT_AWESOME_FONTS_ONLY': /\/font-?awesome\/(?:\d{1,2}\.){1,3}\d{1,2}\/fonts\//, 'BOOTSTRAP_FONTS_ONLY': /\/bootstrap\/(?:\d{1,2}\.){1,3}\d{1,2}\/fonts\//, 'ROCKET_LOADER': /ajax\.cloudflare\.com\/cdn-cgi\/scripts\/[\d\w]{8}\/cloudflare-static\/rocket-loader\.min\.js/ }; const MaterialIcons = { 'DEFAULT': 'flUhRq6tzZclQEJ-Vdg-IuiaDsNc.woff2' }; const Links = { 'CODEBERG_HTML_FILTER': 'https://codeberg.org/nobody/LocalCDN/wiki/Home#user-content-7-a-website-looks-weird-or-cannot-be-used-if-i-deactivate-localcdn-everything-works-what-is-the-problem', 'CODEBERG_RULESET': 'https://codeberg.org/nobody/LocalCDN/wiki/Home#user-content-6-why-do-i-need-this-rule-generator-i-use-an-adblocker-and-want-to-import-these-rules-how-does-it-work', 'WELCOME': chrome.runtime.getURL('pages/welcome/welcome.html'), 'DONATE': chrome.runtime.getURL('pages/donate/donate.html'), 'CHANGELOG': chrome.runtime.getURL('pages/updates/updates.html'), 'FAQ': chrome.runtime.getURL('pages/help/help.html'), 'FAQ_HTML_FILTER': chrome.runtime.getURL('pages/help/help.html#html-filter'), 'STATISTICS': chrome.runtime.getURL('pages/statistics/statistics.html'), 'LOCALCDN_TEST': 'https://www.localcdn.org/test', 'LOCALCDN_TEST_WEBSITE': 'https://www.localcdn.org/test/check', 'WEBLATE': 'https://hosted.weblate.org/projects/localcdn/localcdn/', 'LOGGING': chrome.runtime.getURL('pages/logging/logging.html'), }; const CDNs = { 'ajax.googleapis.com': 'Google Hosted Libraries', 'ajax.aspnetcdn.com': 'Microsoft Ajax CDN', 'ajax.microsoft.com': 'Microsoft Ajax CDN [Deprecated]', 'cdnjs.cloudflare.com': 'CDNJS (Cloudflare)', 'code.jquery.com': 'jQuery CDN (StackPath)', 'cdn.jsdelivr.net': 'jsDelivr (Cloudflare)', 'yastatic.net': 'Yandex CDN', 'yandex.st': 'Yandex CDN [Deprecated]', 'apps.bdimg.com': 'Baidu CDN', 'libs.baidu.com': 'Baidu CDN [Deprecated]', 'lib.sinaapp.com': 'Sina Public Resources', 'upcdn.b0.upaiyun.com': 'UpYun Library', 'cdn.bootcss.com': 'BootCDN #1', 'sdn.geekzu.org': 'Geekzu Public Service [Mirror]', 'ajax.proxy.ustclug.org': 'USTC Linux User Group [Mirror]', 'unpkg.com': 'UNPKG (Cloudflare)', 'stackpath.bootstrapcdn.com': 'StackPath BootstrapCDN', 'maxcdn.bootstrapcdn.com': 'MaxCDN Bootstrap CDN', 'use.fontawesome.com': 'Font Awesome CDN', 'ajax.cloudflare.com': 'Cloudflare CDN', 'akamai-webcdn.kgstatic.net': 'Akamai WebCDN', 'netdna.bootstrapcdn.com': 'NetDNA', 'pagecdn.io': 'PageCDN', 'fonts.googleapis.com': 'Google', 'fonts.gstatic.com': 'Google', 'gitcdn.github.io': 'GitHub', 'cdn.bootcdn.net': 'BootCDN #2', 'vjs.zencdn.net': 'Video.js CDN', 'cdn.plyr.io': 'Plyr CDN', 'cdn.materialdesignicons.com': 'MaterialDesign', 'cdn.ravenjs.com': 'Raven.js', 'js.appboycdn.com': 'Appboy CDN', 'cdn.embed.ly': 'embedly', 'cdn.datatables.net': 'DataTables', 'mathjax.rstudio.com': 'MathJax RStudio', 'cdn.mathjax.org': 'MathJax CDN', }; const IgnoredHost = { 'fonts.googleapis.com': true, 'fonts.gstatic.com': true, }; /** * MathJax is a very large library with over 30,000 files. * That is why it is better to specify each one here. * * https://codeberg.org/nobody/LocalCDN/issues/75 */ const MathJaxFiles = { 'config/default.js': true, 'config/MML_HTMLorMML.js': true, 'config/TeX-AMS_CHTML.js': true, 'config/TeX-AMS_HTML.js': true, 'config/TeX-AMS_HTML-full.js': true, 'config/TeX-AMS-MML_HTMLorMML.js': true, 'config/TeX-MML-AM_CHTML.js': true, 'extensions/TeX/begingroup.js': true, 'extensions/TeX/cancel.js': true, 'extensions/TeX/color.js': true, 'extensions/TeX/mhchem3/mhchem.js': true, 'extensions/asciimath2jax.js': true, 'extensions/MathEvents.js': true, 'extensions/MathMenu.js': true, 'extensions/MathML/content-mathml.js': true, 'extensions/MathML/mml3.js': true, 'extensions/MathZoom.js': true, 'extensions/mml2jax.js': true, 'extensions/tex2jax.js': true, 'fonts/HTML-CSS/TeX/woff/MathJax_Main-Regular.woff': true, 'fonts/HTML-CSS/TeX/woff/MathJax_Math-Italic.woff': true, 'fonts/HTML-CSS/TeX/woff/MathJax_Size1-Regular.woff': true, 'fonts/HTML-CSS/TeX/woff/MathJax_Size2-Regular.woff': true, 'fonts/HTML-CSS/TeX/woff/MathJax_Size3-Regular.woff': true, 'jax/element/mml/jax.js': true, 'jax/element/mml/optable/BasicLatin.js': true, 'jax/element/mml/optable/GeneralPunctuation.js': true, 'jax/element/mml/optable/GreekAndCoptic.js': true, 'jax/element/mml/optable/Latin1Supplement.js': true, 'jax/element/mml/optable/MathOperators.js': true, 'jax/element/mml/optable/SuppMathOperators.js': true, 'jax/input/TeX/config.js': true, 'jax/input/TeX/jax.js': true, 'jax/output/CommonHTML/fonts/TeX/AMS-Regular.js': true, 'jax/output/CommonHTML/fonts/TeX/fontdata.js': true, 'jax/output/CommonHTML/autoload/mtable.js': true, 'jax/output/CommonHTML/jax.js': true, 'jax/output/CommonHTML/config.js': true, 'jax/output/HTML-CSS/autoload/menclose.js': true, 'jax/output/HTML-CSS/autoload/mtable.js': true, 'jax/output/HTML-CSS/autoload/multiline.js': true, 'jax/output/HTML-CSS/config.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Latin1Supplement.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscSymbols.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/SuppMathOperators.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MathOperators.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Main.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/BoxDrawing.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/BBBold.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/LetterlikeSymbols.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/EnclosedAlphanum.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Dingbats.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/LatinExtendedA.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/CombDiacritMarks.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscTechnical.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/Arrows.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GeometricShapes.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GeneralPunctuation.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/PUA.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/SpacingModLetters.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/MiscMathSymbolsB.js': true, 'jax/output/HTML-CSS/fonts/TeX/AMS/Regular/GreekAndCoptic.js': true, 'jax/output/HTML-CSS/fonts/TeX/fontdata-extra.js': true, 'jax/output/HTML-CSS/fonts/TeX/fontdata.js': true, 'jax/output/HTML-CSS/imageFonts.js': true, 'jax/output/HTML-CSS/jax.js': true, }; const MathJax3Files = { 'es5/output/chtml/fonts/woff-v2/MathJax_Main-Regular.woff': true, 'es5/output/chtml/fonts/woff-v2/MathJax_Zero.woff': true, 'es5/tex-mml-chtml.js': true, }; /** * To block bad resources, e.g. fingerprint * * Required if the user has not enabled the "Block requests for missing resources" option. * * https://codeberg.org/nobody/LocalCDN/issues/703 */ const BadResources = { 'cdn.jsdelivr.net/npm/@fingerprintjs/': true, 'cdnjs.cloudflare.com/ajax/libs/fingerprintjs/': true, 'cdnjs.cloudflare.com/ajax/libs/fingerprintjs2/': true, 'cdnjs.cloudflare.com/ajax/libs/ClientJS/': true, }; const LogString = { 'PREFIX': '[ LocalCDN ]', 'FONT_AWESOME': 'Font Awesome is not fully supported by your browser.', 'GOOGLE_MATERIAL_ICONS': 'Google Material Icons are not fully supported by your browser.', 'YANDEX': 'Workaround. Disable LocalCDN if website and CDN are the same', 'REPLACED_RESOURCE': 'Replaced resource:', 'MISSING_RESOURCE': 'Missing resource:', 'EVIL_RESOURCE_BLOCKED': 'Evil resource blocked:', }; // Supported charsets for TextDecoder() // https://developer.mozilla.org/en-US/docs/Web/API/TextDecoder/TextDecoder const EncodingTypes = { 'unicode-1-1-utf-8': true, 'utf-8': true, 'utf8': true, '866': true, 'cp866': true, 'csibm866': true, 'ibm866': true, 'csisolatin2': true, 'iso-8859-2': true, 'iso-ir-101': true, 'iso8859-2': true, 'iso88592': true, 'iso_8859-2': true, 'iso_8859-2:1987': true, 'l2': true, 'latin2': true, 'csisolatin3': true, 'iso-8859-3': true, 'iso-ir-109': true, 'iso8859-3': true, 'iso88593': true, 'iso_8859-3': true, 'iso_8859-3:1988': true, 'l3': true, 'latin3': true, 'csisolatin4': true, 'iso-8859-4': true, 'iso-ir-110': true, 'iso8859-4': true, 'iso88594': true, 'iso_8859-4': true, 'iso_8859-4:1988': true, 'l4': true, 'latin4': true, 'csisolatincyrillic': true, 'cyrillic': true, 'iso-8859-5': true, 'iso-ir-144': true, 'iso88595': true, 'iso_8859-5': true, 'iso_8859-5:1988': true, 'arabic': true, 'asmo-708': true, 'csiso88596e': true, 'csiso88596i': true, 'csisolatinarabic': true, 'ecma-114': true, 'iso-8859-6': true, 'iso-8859-6-e': true, 'iso-8859-6-i': true, 'iso-ir-127': true, 'iso8859-6': true, 'iso88596': true, 'iso_8859-6': true, 'iso_8859-6:1987': true, 'csisolatingreek': true, 'ecma-118': true, 'elot_928': true, 'greek': true, 'greek8': true, 'iso-8859-7': true, 'iso-ir-126': true, 'iso8859-7': true, 'iso88597': true, 'iso_8859-7': true, 'iso_8859-7:1987': true, 'sun_eu_greek': true, 'csiso88598e': true, 'csisolatinhebrew': true, 'hebrew': true, 'iso-8859-8': true, 'iso-8859-8-e': true, 'iso-ir-138': true, 'iso8859-8': true, 'iso88598': true, 'iso_8859-8': true, 'iso_8859-8:1988': true, 'visual': true, 'csiso88598i': true, 'iso-8859-8-i': true, 'logical': true, 'csisolatin6': true, 'iso-8859-10': true, 'iso-ir-157': true, 'iso8859-10': true, 'iso885910': true, 'l6': true, 'latin6': true, 'iso-8859-13': true, 'iso8859-13': true, 'iso885913': true, 'iso-8859-14': true, 'iso8859-14': true, 'iso885914': true, 'csisolatin9': true, 'iso-8859-15': true, 'iso8859-15': true, 'iso885915': true, 'l9': true, 'latin9': true, 'iso-8859-16': true, 'cskoi8r': true, 'koi': true, 'koi8': true, 'koi8-r': true, 'koi8_r': true, 'koi8-u': true, 'csmacintosh': true, 'mac': true, 'macintosh': true, 'x-mac-roman': true, 'dos-874': true, 'iso-8859-11': true, 'iso8859-11': true, 'iso885911': true, 'tis-620': true, 'windows-874': true, 'cp1250': true, 'windows-1250': true, 'x-cp1250': true, 'cp1251': true, 'windows-1251': true, 'x-cp1251': true, 'ansi_x3.4-1968': true, 'ascii': true, 'cp1252': true, 'cp819': true, 'csisolatin1': true, 'ibm819': true, 'iso-8859-1': true, 'iso-ir-100': true, 'iso8859-1': true, 'iso88591': true, 'iso_8859-1': true, 'iso_8859-1:1987': true, 'l1': true, 'latin1': true, 'us-ascii': true, 'windows-1252': true, 'x-cp1252': true, 'cp1253': true, 'windows-1253': true, 'x-cp1253': true, 'cp1254': true, 'csisolatin5': true, 'iso-8859-9': true, 'iso-ir-148': true, 'iso8859-9': true, 'iso88599': true, 'iso_8859-9': true, 'iso_8859-9:1989': true, 'l5': true, 'latin5': true, 'windows-1254': true, 'x-cp1254': true, 'cp1255': true, 'windows-1255': true, 'x-cp1255': true, 'cp1256': true, 'windows-1256': true, 'x-cp1256': true, 'cp1257': true, 'windows-1257': true, 'x-cp1257': true, 'cp1258': true, 'windows-1258': true, 'x-cp1258': true, 'x-mac-cyrillic': true, 'x-mac-ukrainian': true, 'chinese': true, 'csgb2312': true, 'csiso58gb231280': true, 'gb2312': true, 'gb_2312': true, 'gb_2312-80': true, 'gbk': true, 'iso-ir-58': true, 'x-gbk': true, 'gb18030': true, 'hz-gb-2312': true, 'big5': true, 'big5-hkscs': true, 'cn-big5': true, 'csbig5': true, 'x-x-big5': true, 'cseucpkdfmtjapanese': true, 'euc-jp': true, 'x-euc-jp': true, 'csiso2022jp': true, 'iso-2022-jp': true, 'iso-2022-jp-2': true, 'csshiftjis': true, 'ms_kanji': true, 'shift-jis': true, 'shift_jis': true, 'sjis': true, 'windows-31j': true, 'x-sjis': true, 'cseuckr': true, 'csksc56011987': true, 'euc-kr': true, 'iso-ir-149': true, 'korean': true, 'ks_c_5601-1987': true, 'ks_c_5601-1989': true, 'ksc5601': true, 'ksc_5601': true, 'windows-949': true, 'csiso2022kr': true, 'iso-2022-kr': true, 'utf-16be': true, 'utf-16': true, 'utf-16le': true, 'x-user-defined': true, 'iso-2022-cn': true, 'iso-2022-cn-ext': true };