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https://github.com/lancedikson/bowser
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560 lines
16 KiB
HTML
560 lines
16 KiB
HTML
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<title>parser.js - Documentation</title>
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<nav >
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<h2><a href="index.html">Home</a></h2><h3>Classes</h3><ul><li><a href="Bowser.html">Bowser</a><ul class='methods'><li data-type='method'><a href="Bowser.html#.getParser">getParser</a></li><li data-type='method'><a href="Bowser.html#.parse">parse</a></li></ul></li><li><a href="Parser.html">Parser</a><ul class='methods'><li data-type='method'><a href="Parser.html#getBrowser">getBrowser</a></li><li data-type='method'><a href="Parser.html#getBrowserName">getBrowserName</a></li><li data-type='method'><a href="Parser.html#getBrowserVersion">getBrowserVersion</a></li><li data-type='method'><a href="Parser.html#getEngine">getEngine</a></li><li data-type='method'><a href="Parser.html#getEngineName">getEngineName</a></li><li data-type='method'><a href="Parser.html#getOS">getOS</a></li><li data-type='method'><a href="Parser.html#getOSName">getOSName</a></li><li data-type='method'><a href="Parser.html#getOSVersion">getOSVersion</a></li><li data-type='method'><a href="Parser.html#getPlatform">getPlatform</a></li><li data-type='method'><a href="Parser.html#getPlatformType">getPlatformType</a></li><li data-type='method'><a href="Parser.html#getResult">getResult</a></li><li data-type='method'><a href="Parser.html#getUA">getUA</a></li><li data-type='method'><a href="Parser.html#is">is</a></li><li data-type='method'><a href="Parser.html#isBrowser">isBrowser</a></li><li data-type='method'><a href="Parser.html#parse">parse</a></li><li data-type='method'><a href="Parser.html#parseBrowser">parseBrowser</a></li><li data-type='method'><a href="Parser.html#parseEngine">parseEngine</a></li><li data-type='method'><a href="Parser.html#parseOS">parseOS</a></li><li data-type='method'><a href="Parser.html#parsePlatform">parsePlatform</a></li><li data-type='method'><a href="Parser.html#satisfies">satisfies</a></li><li data-type='method'><a href="Parser.html#some">some</a></li><li data-type='method'><a href="Parser.html#test">test</a></li></ul></li></ul><h3>Global</h3><ul><li><a href="global.html#getAndroidVersionName">getAndroidVersionName</a></li><li><a href="global.html#getBrowserAlias">getBrowserAlias</a></li><li><a href="global.html#getBrowserTypeByAlias">getBrowserTypeByAlias</a></li><li><a href="global.html#getFirstMatch">getFirstMatch</a></li><li><a href="global.html#getMacOSVersionName">getMacOSVersionName</a></li><li><a href="global.html#getSecondMatch">getSecondMatch</a></li><li><a href="global.html#getVersionPrecision">getVersionPrecision</a></li><li><a href="global.html#map">map</a></li><li><a href="global.html#matchAndReturnConst">matchAndReturnConst</a></li></ul>
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<div id="main">
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<h1 class="page-title">parser.js</h1>
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<section>
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<article>
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<pre class="prettyprint source linenums"><code>import browserParsersList from './parser-browsers.js';
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import osParsersList from './parser-os.js';
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import platformParsersList from './parser-platforms.js';
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import enginesParsersList from './parser-engines.js';
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import Utils from './utils.js';
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/**
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* The main class that arranges the whole parsing process.
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*/
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class Parser {
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/**
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* Create instance of Parser
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*
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* @param {String} UA User-Agent string
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* @param {Boolean} [skipParsing=false] parser can skip parsing in purpose of performance
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* improvements if you need to make a more particular parsing
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* like {@link Parser#parseBrowser} or {@link Parser#parsePlatform}
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*
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* @throw {Error} in case of empty UA String
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*
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* @constructor
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*/
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constructor(UA, skipParsing = false) {
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if (UA === void (0) || UA === null || UA === '') {
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throw new Error("UserAgent parameter can't be empty");
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}
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this._ua = UA;
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/**
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* @typedef ParsedResult
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* @property {Object} browser
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* @property {String|undefined} [browser.name]
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* Browser name, like `"Chrome"` or `"Internet Explorer"`
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* @property {String|undefined} [browser.version] Browser version as a String `"12.01.45334.10"`
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* @property {Object} os
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* @property {String|undefined} [os.name] OS name, like `"Windows"` or `"macOS"`
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* @property {String|undefined} [os.version] OS version, like `"NT 5.1"` or `"10.11.1"`
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* @property {String|undefined} [os.versionName] OS name, like `"XP"` or `"High Sierra"`
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* @property {Object} platform
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* @property {String|undefined} [platform.type]
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* platform type, can be either `"desktop"`, `"tablet"` or `"mobile"`
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* @property {String|undefined} [platform.vendor] Vendor of the device,
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* like `"Apple"` or `"Samsung"`
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* @property {String|undefined} [platform.model] Device model,
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* like `"iPhone"` or `"Kindle Fire HD 7"`
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* @property {Object} engine
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* @property {String|undefined} [engine.name]
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* Can be any of this: `WebKit`, `Blink`, `Gecko`, `Trident`, `Presto`, `EdgeHTML`
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* @property {String|undefined} [engine.version] String version of the engine
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*/
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this.parsedResult = {};
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if (skipParsing !== true) {
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this.parse();
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}
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}
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/**
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* Get UserAgent string of current Parser instance
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* @return {String} User-Agent String of the current <Parser> object
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*
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* @public
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*/
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getUA() {
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return this._ua;
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}
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/**
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* Test a UA string for a regexp
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* @param {RegExp} regex
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* @return {Boolean}
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*/
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test(regex) {
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return regex.test(this._ua);
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}
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/**
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* Get parsed browser object
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* @return {Object}
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*/
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parseBrowser() {
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this.parsedResult.browser = {};
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const browserDescriptor = browserParsersList.find((_browser) => {
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if (typeof _browser.test === 'function') {
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return _browser.test(this);
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}
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if (_browser.test instanceof Array) {
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return _browser.test.some(condition => this.test(condition));
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}
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throw new Error("Browser's test function is not valid");
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});
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if (browserDescriptor) {
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this.parsedResult.browser = browserDescriptor.describe(this.getUA());
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}
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return this.parsedResult.browser;
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}
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/**
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* Get parsed browser object
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* @return {Object}
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*
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* @public
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*/
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getBrowser() {
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if (this.parsedResult.browser) {
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return this.parsedResult.browser;
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}
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return this.parseBrowser();
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}
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/**
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* Get browser's name
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* @return {String} Browser's name or an empty string
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*
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* @public
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*/
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getBrowserName(toLowerCase) {
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if (toLowerCase) {
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return String(this.getBrowser().name).toLowerCase() || '';
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}
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return this.getBrowser().name || '';
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}
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/**
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* Get browser's version
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* @return {String} version of browser
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*
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* @public
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*/
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getBrowserVersion() {
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return this.getBrowser().version;
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}
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/**
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* Get OS
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* @return {Object}
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*
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* @example
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* this.getOS();
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* {
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* name: 'macOS',
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* version: '10.11.12'
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* }
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*/
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getOS() {
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if (this.parsedResult.os) {
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return this.parsedResult.os;
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}
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return this.parseOS();
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}
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/**
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* Parse OS and save it to this.parsedResult.os
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* @return {*|{}}
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*/
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parseOS() {
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this.parsedResult.os = {};
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const os = osParsersList.find((_os) => {
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if (typeof _os.test === 'function') {
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return _os.test(this);
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}
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if (_os.test instanceof Array) {
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return _os.test.some(condition => this.test(condition));
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}
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throw new Error("Browser's test function is not valid");
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});
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if (os) {
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this.parsedResult.os = os.describe(this.getUA());
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}
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return this.parsedResult.os;
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}
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/**
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* Get OS name
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* @param {Boolean} [toLowerCase] return lower-cased value
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* @return {String} name of the OS — macOS, Windows, Linux, etc.
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*/
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getOSName(toLowerCase) {
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const { name } = this.getOS();
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if (toLowerCase) {
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return String(name).toLowerCase() || '';
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}
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return name || '';
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}
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/**
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* Get OS version
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* @return {String} full version with dots ('10.11.12', '5.6', etc)
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*/
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getOSVersion() {
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return this.getOS().version;
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}
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/**
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* Get parsed platform
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* @return {{}}
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*/
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getPlatform() {
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if (this.parsedResult.platform) {
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return this.parsedResult.platform;
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}
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return this.parsePlatform();
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}
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/**
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* Get platform name
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* @param {Boolean} [toLowerCase=false]
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* @return {*}
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*/
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getPlatformType(toLowerCase = false) {
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const { type } = this.getPlatform();
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if (toLowerCase) {
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return String(type).toLowerCase() || '';
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}
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return type || '';
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}
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/**
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* Get parsed platform
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* @return {{}}
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*/
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parsePlatform() {
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this.parsedResult.platform = {};
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const platform = platformParsersList.find((_platform) => {
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if (typeof _platform.test === 'function') {
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return _platform.test(this);
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}
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if (_platform.test instanceof Array) {
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return _platform.test.some(condition => this.test(condition));
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}
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throw new Error("Browser's test function is not valid");
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});
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if (platform) {
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this.parsedResult.platform = platform.describe(this.getUA());
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}
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return this.parsedResult.platform;
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}
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/**
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* Get parsed engine
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* @return {{}}
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*/
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getEngine() {
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if (this.parsedResult.engine) {
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return this.parsedResult.engine;
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}
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return this.parseEngine();
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}
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/**
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* Get engines's name
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* @return {String} Engines's name or an empty string
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*
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* @public
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*/
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getEngineName(toLowerCase) {
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if (toLowerCase) {
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return String(this.getEngine().name).toLowerCase() || '';
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}
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return this.getEngine().name || '';
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}
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/**
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* Get parsed platform
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* @return {{}}
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*/
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parseEngine() {
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this.parsedResult.engine = {};
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const engine = enginesParsersList.find((_engine) => {
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if (typeof _engine.test === 'function') {
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return _engine.test(this);
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}
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if (_engine.test instanceof Array) {
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return _engine.test.some(condition => this.test(condition));
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}
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throw new Error("Browser's test function is not valid");
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});
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if (engine) {
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this.parsedResult.engine = engine.describe(this.getUA());
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}
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return this.parsedResult.engine;
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}
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/**
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* Parse full information about the browser
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*/
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parse() {
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this.parseBrowser();
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this.parseOS();
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this.parsePlatform();
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this.parseEngine();
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return this;
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}
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/**
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* Get parsed result
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* @return {ParsedResult}
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*/
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getResult() {
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return Object.assign({}, this.parsedResult);
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}
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/**
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* Check if parsed browser matches certain conditions
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*
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* @param {Object} checkTree It's one or two layered object,
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* which can include a platform or an OS on the first layer
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* and should have browsers specs on the bottom-laying layer
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*
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* @returns {Boolean|undefined} Whether the browser satisfies the set conditions or not.
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* Returns `undefined` when the browser is no described in the checkTree object.
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*
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* @example
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* const browser = Bowser.getParser(window.navigator.userAgent);
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* if (browser.satisfies({chrome: '>118.01.1322' }))
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* // or with os
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* if (browser.satisfies({windows: { chrome: '>118.01.1322' } }))
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* // or with platforms
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* if (browser.satisfies({desktop: { chrome: '>118.01.1322' } }))
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*/
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satisfies(checkTree) {
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const platformsAndOSes = {};
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let platformsAndOSCounter = 0;
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const browsers = {};
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let browsersCounter = 0;
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const allDefinitions = Object.keys(checkTree);
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allDefinitions.forEach((key) => {
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const currentDefinition = checkTree[key];
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if (typeof currentDefinition === 'string') {
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browsers[key] = currentDefinition;
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browsersCounter += 1;
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} else if (typeof currentDefinition === 'object') {
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platformsAndOSes[key] = currentDefinition;
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platformsAndOSCounter += 1;
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}
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});
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if (platformsAndOSCounter > 0) {
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const platformsAndOSNames = Object.keys(platformsAndOSes);
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const OSMatchingDefinition = platformsAndOSNames.find(name => (this.isOS(name)));
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if (OSMatchingDefinition) {
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const osResult = this.satisfies(platformsAndOSes[OSMatchingDefinition]);
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if (osResult !== void 0) {
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return osResult;
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}
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}
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const platformMatchingDefinition = platformsAndOSNames.find(name => (this.isPlatform(name)));
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if (platformMatchingDefinition) {
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const platformResult = this.satisfies(platformsAndOSes[platformMatchingDefinition]);
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if (platformResult !== void 0) {
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return platformResult;
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}
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}
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}
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if (browsersCounter > 0) {
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const browserNames = Object.keys(browsers);
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const matchingDefinition = browserNames.find(name => (this.isBrowser(name, true)));
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if (matchingDefinition !== void 0) {
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return this.compareVersion(browsers[matchingDefinition]);
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}
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}
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return undefined;
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}
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/**
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* Check if the browser name equals the passed string
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* @param browserName The string to compare with the browser name
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* @param [includingAlias=false] The flag showing whether alias will be included into comparison
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* @returns {boolean}
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*/
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isBrowser(browserName, includingAlias = false) {
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const defaultBrowserName = this.getBrowserName().toLowerCase();
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let browserNameLower = browserName.toLowerCase();
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const alias = Utils.getBrowserTypeByAlias(browserNameLower);
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if (includingAlias && alias) {
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browserNameLower = alias.toLowerCase();
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}
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return browserNameLower === defaultBrowserName;
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}
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compareVersion(version) {
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let expectedResults = [0];
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let comparableVersion = version;
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let isLoose = false;
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const currentBrowserVersion = this.getBrowserVersion();
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if (typeof currentBrowserVersion !== 'string') {
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return void 0;
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}
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if (version[0] === '>' || version[0] === '<') {
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comparableVersion = version.substr(1);
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if (version[1] === '=') {
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isLoose = true;
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comparableVersion = version.substr(2);
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} else {
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expectedResults = [];
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}
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if (version[0] === '>') {
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expectedResults.push(1);
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} else {
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expectedResults.push(-1);
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}
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} else if (version[0] === '=') {
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comparableVersion = version.substr(1);
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} else if (version[0] === '~') {
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isLoose = true;
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comparableVersion = version.substr(1);
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}
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return expectedResults.indexOf(
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Utils.compareVersions(currentBrowserVersion, comparableVersion, isLoose),
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) > -1;
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}
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isOS(osName) {
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return this.getOSName(true) === String(osName).toLowerCase();
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}
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isPlatform(platformType) {
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return this.getPlatformType(true) === String(platformType).toLowerCase();
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}
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isEngine(engineName) {
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return this.getEngineName(true) === String(engineName).toLowerCase();
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}
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/**
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* Is anything? Check if the browser is called "anything",
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* the OS called "anything" or the platform called "anything"
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* @param {String} anything
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* @returns {Boolean}
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*/
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is(anything) {
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return this.isBrowser(anything) || this.isOS(anything) || this.isPlatform(anything);
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}
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/**
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* Check if any of the given values satisfies this.is(anything)
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* @param {String[]} anythings
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* @returns {Boolean}
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*/
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some(anythings = []) {
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return anythings.some(anything => this.is(anything));
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}
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}
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export default Parser;
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</code></pre>
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</article>
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Documentation generated by <a href="https://github.com/jsdoc3/jsdoc">JSDoc 3.6.3</a> on Sun Aug 04 2019 23:53:02 GMT+0300 (Eastern European Summer Time) using the <a href="https://github.com/clenemt/docdash">docdash</a> theme.
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