mirror of
https://github.com/gorhill/uMatrix.git
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84 lines
2.4 KiB
JavaScript
84 lines
2.4 KiB
JavaScript
/*******************************************************************************
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uMatrix - a Chromium browser extension to black/white list requests.
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Copyright (C) 2014-2016 Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uMatrix
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*/
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/******************************************************************************/
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µMatrix.userAgentSpoofer = (function() {
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"use strict";
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/******************************************************************************/
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var userAgentRandomPicker = function() {
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var µm = µMatrix;
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var userAgents = µm.userSettings.spoofUserAgentWith.split(/[\n\r]+/);
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var i, s, pos;
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while ( userAgents.length ) {
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i = Math.floor(userAgents.length * Math.random());
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s = userAgents[i];
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if ( s.charAt(0) === '#' ) {
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s = '';
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} else {
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s = s.trim();
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}
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if ( s !== '' ) {
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return s;
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}
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userAgents.splice(i, 1);
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}
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return '';
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};
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/******************************************************************************/
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var userAgentSpoofer = function(force) {
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var µm = µMatrix;
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var uaStr = µm.userAgentReplaceStr;
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var obsolete = Date.now();
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if ( !force ) {
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obsolete -= µm.userSettings.spoofUserAgentEvery * 60 * 1000;
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}
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if ( µm.userAgentReplaceStrBirth < obsolete ) {
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uaStr = '';
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}
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if ( uaStr === '' ) {
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µm.userAgentReplaceStr = userAgentRandomPicker();
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µm.userAgentReplaceStrBirth = Date.now();
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}
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vAPI.setTimeout(userAgentSpoofer, 120 * 1000);
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};
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userAgentSpoofer();
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/******************************************************************************/
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return {
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shuffle: function() {
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userAgentSpoofer(true);
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}
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};
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})();
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/******************************************************************************/
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