110 lines
3.9 KiB
JavaScript
110 lines
3.9 KiB
JavaScript
/**
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; under version 2
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* of the License (non-upgradable).
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* Copyright (c) 2016-2021 (original work) Open Assessment Technologies SA ;
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*/
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define(['core/request', 'util/url', 'taoClientDiagnostic/tools/getConfig'], function(request, urlHelper, getConfig) {
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'use strict';
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/**
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* Some default values
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* @type {object}
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* @private
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*/
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const defaultConfig = {
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browserVersionAction: 'whichBrowser',
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browserVersionController: 'CompatibilityChecker',
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browserVersionExtension: 'taoClientDiagnostic'
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};
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/**
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* Gets the URL of the platform tester
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* @param {Window} win
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* @param {string} action
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* @param {string} controller
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* @param {string} extension
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* @returns {string}
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* @private
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*/
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function getTesterUrl(win, action, controller, extension) {
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const document = win.document;
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const navigator = win.navigator;
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const screen = win.screen;
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const params = {};
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let e = 0;
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let f = 0;
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// append the browser user agent
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params.ua = navigator.userAgent;
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// detect browser family
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e |= win.ActiveXObject ? 1 : 0;
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e |= win.opera ? 2 : 0;
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e |= win.chrome ? 4 : 0;
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e |= 'getBoxObjectFor' in document || 'mozInnerScreenX' in win ? 8 : 0;
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e |=
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'WebKitCSSMatrix' in win || 'WebKitPoint' in win || 'webkitStorageInfo' in win || 'webkitURL' in win
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? 16
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: 0;
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e |= e & 16 && {}.toString.toString().indexOf('\n') === -1 ? 32 : 0;
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params.e = e;
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// gather info about browser functionality
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f |= 'sandbox' in document.createElement('iframe') ? 1 : 0;
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f |= 'WebSocket' in win ? 2 : 0;
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f |= win.Worker ? 4 : 0;
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f |= win.applicationCache ? 8 : 0;
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f |= win.history && win.history.pushState ? 16 : 0;
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f |= document.documentElement.webkitRequestFullScreen ? 32 : 0;
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f |= 'FileReader' in win ? 64 : 0;
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params.f = f;
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// append a unique ID
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params.r = Math.random()
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.toString(36)
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.substring(7);
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// get the screen size
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params.w = screen.width;
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params.h = screen.height;
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return urlHelper.route(action, controller, extension, params);
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}
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/**
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* Check the user browser and os.
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*
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* This helper performs a server request to gather information about the user browser and os.
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* @param {Window} window - Need an access to the window object
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* @param {object} config
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* @param {string} config.browserVersionAction - The name of the action to call to get the browser checker
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* @param {string} config.browserVersionController - The name of the controller to call to get the browser checker
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* @param {string} config.browserVersionExtension - The name of the extension containing the controller to call to get the browser checker
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* @returns {Promise}
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*/
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return function getPlatformInfo(win, config) {
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config = getConfig(config, defaultConfig);
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const url = getTesterUrl(
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win,
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config.browserVersionAction,
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config.browserVersionController,
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config.browserVersionExtension
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);
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return request({ url, noToken: true });
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};
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});
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