You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
128 lines
4.6 KiB
128 lines
4.6 KiB
/*******************************************************************************
|
|
|
|
µMatrix - a Chromium browser extension to black/white list requests.
|
|
Copyright (C) 2014 Raymond Hill
|
|
|
|
This program is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see {http://www.gnu.org/licenses/}.
|
|
|
|
Home: https://github.com/gorhill/uMatrix
|
|
*/
|
|
|
|
/* global vAPI */
|
|
/* jshint multistr: true */
|
|
|
|
// Injected into content pages
|
|
|
|
/******************************************************************************/
|
|
|
|
(function() {
|
|
|
|
'use strict';
|
|
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/464
|
|
if ( document instanceof HTMLDocument === false ) {
|
|
//console.debug('contentscript-start.js > not a HTLMDocument');
|
|
return false;
|
|
}
|
|
|
|
// This can happen
|
|
if ( !vAPI ) {
|
|
//console.debug('contentscript-start.js > vAPI not found');
|
|
return;
|
|
}
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/456
|
|
// Already injected?
|
|
if ( vAPI.contentscriptStartInjected ) {
|
|
//console.debug('contentscript-end.js > content script already injected');
|
|
return;
|
|
}
|
|
vAPI.contentscriptStartInjected = true;
|
|
|
|
/******************************************************************************/
|
|
|
|
var localMessager = vAPI.messaging.channel('contentscript-start.js');
|
|
|
|
/******************************************************************************/
|
|
|
|
// If you play with this code, mind:
|
|
// https://github.com/gorhill/httpswitchboard/issues/261
|
|
// https://github.com/gorhill/httpswitchboard/issues/252
|
|
|
|
var navigatorSpoofer = " \
|
|
;(function() { \n \
|
|
try { \n \
|
|
/* https://github.com/gorhill/uMatrix/issues/61#issuecomment-63814351 */ \n \
|
|
var navigator = window.navigator; \n \
|
|
var spoofedUserAgent = {{ua-json}}; \n \
|
|
if ( spoofedUserAgent === navigator.userAgent ) { \n \
|
|
return; \n \
|
|
} \n \
|
|
var pos = spoofedUserAgent.indexOf('/'); \n \
|
|
var appName = pos === -1 ? '' : spoofedUserAgent.slice(0, pos); \n \
|
|
var appVersion = pos === -1 ? spoofedUserAgent : spoofedUserAgent.slice(pos + 1); \n \
|
|
Object.defineProperty(navigator, 'userAgent', { get: function(){ return spoofedUserAgent; } }); \n \
|
|
Object.defineProperty(navigator, 'appName', { get: function(){ return appName; } }); \n \
|
|
Object.defineProperty(navigator, 'appVersion', { get: function(){ return appVersion; } }); \n \
|
|
} catch (e) { \n \
|
|
} \n \
|
|
})();";
|
|
|
|
/******************************************************************************/
|
|
|
|
// Because window.userAgent is read-only, we need to create a fake Navigator
|
|
// object to contain our fake user-agent string.
|
|
// Because objects created by a content script are local to the content script
|
|
// and not visible to the web page itself (and vice versa), we need the context
|
|
// of the web page to create the fake Navigator object directly, and the only
|
|
// way to do this is to inject appropriate javascript code into the web page.
|
|
|
|
var injectNavigatorSpoofer = function(spoofedUserAgent) {
|
|
if ( typeof spoofedUserAgent !== 'string' ) {
|
|
return;
|
|
}
|
|
if ( spoofedUserAgent === navigator.userAgent ) {
|
|
return;
|
|
}
|
|
var script = document.createElement('script');
|
|
script.type = 'text/javascript';
|
|
script.id = 'umatrix-ua-spoofer';
|
|
var js = document.createTextNode(navigatorSpoofer.replace('{{ua-json}}', JSON.stringify(spoofedUserAgent)));
|
|
script.appendChild(js);
|
|
|
|
try {
|
|
var parent = document.head || document.documentElement;
|
|
parent.appendChild(script);
|
|
}
|
|
catch (e) {
|
|
}
|
|
|
|
// The port will never be used again at this point, disconnecting allows
|
|
// to browser to flush this script from memory.
|
|
localMessager.close();
|
|
};
|
|
|
|
localMessager.send({
|
|
what: 'getUserAgentReplaceStr',
|
|
hostname: window.location.hostname
|
|
}, injectNavigatorSpoofer);
|
|
|
|
/******************************************************************************/
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
/******************************************************************************/
|