mirror of
https://github.com/gorhill/uBlock.git
synced 2024-08-31 16:19:39 +02:00
138 lines
4.0 KiB
JavaScript
138 lines
4.0 KiB
JavaScript
/*******************************************************************************
|
|
|
|
µBlock - a Chromium browser extension to block 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/uBlock
|
|
*/
|
|
|
|
/* jshint multistr: true */
|
|
/* global chrome, µBlock */
|
|
|
|
/******************************************************************************/
|
|
|
|
// Start isolation from global scope
|
|
|
|
µBlock.webRequest = (function() {
|
|
|
|
/******************************************************************************/
|
|
|
|
// Intercept and filter web requests according to white and black lists.
|
|
|
|
var onBeforeRequestHandler = function(details) {
|
|
var requestType = details.type;
|
|
|
|
// console.debug('onBeforeRequestHandler()> "%s": %o', details.url, details);
|
|
|
|
// Do not block behind the scene requests.
|
|
if ( details.tabId < 0 ) {
|
|
return;
|
|
}
|
|
|
|
// Never block root main doc.
|
|
if ( requestType === 'main_frame' && details.parentFrameId < 0 ) {
|
|
return;
|
|
}
|
|
|
|
var µb = µBlock;
|
|
var µburi = µb.URI;
|
|
var requestURL = µburi.set(details.url).normalizedURI();
|
|
var requestScheme = µburi.scheme;
|
|
var requestHostname = µburi.hostname;
|
|
var requestPath = µburi.path;
|
|
|
|
// Ignore non-http schemes
|
|
if ( requestScheme.indexOf('http') !== 0 ) {
|
|
return;
|
|
}
|
|
|
|
// Do not block myself from updating assets
|
|
if ( requestType === 'xmlhttprequest' && requestURL.slice(0, µb.projectServerRoot.length) === µb.projectServerRoot ) {
|
|
return;
|
|
}
|
|
|
|
// rhill 2013-12-15:
|
|
// Try to transpose generic `other` category into something more
|
|
// meaningful.
|
|
if ( requestType === 'other' ) {
|
|
requestType = µb.transposeType(requestType, requestPath);
|
|
}
|
|
|
|
// Lookup the page store associated with this tab id.
|
|
var pageStore = µb.pageStoreFromTabId(details.tabId) || {};
|
|
|
|
var reason = false;
|
|
if ( µb.getNetFilteringSwitch(pageStore.pageHostname) ) {
|
|
reason = µb.abpFilters.matchString(pageStore, requestURL, requestType, requestHostname);
|
|
}
|
|
|
|
// Block using ABP filters?
|
|
pageStore.recordRequest(requestType, requestURL, reason);
|
|
|
|
// whitelisted?
|
|
if ( reason === false ) {
|
|
return;
|
|
}
|
|
|
|
// blacklisted
|
|
// console.debug('onBeforeRequestHandler()> BLOCK "%s": %o', details.url, details);
|
|
|
|
// If it's a blacklisted frame, redirect to something harmless.
|
|
if ( requestType === 'sub_frame' ) {
|
|
return { 'redirectUrl': 'about:blank' };
|
|
}
|
|
|
|
return { 'cancel': true };
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
chrome.webRequest.onBeforeRequest.addListener(
|
|
//function(details) {
|
|
// quickProfiler.start('onBeforeRequest');
|
|
// var r = onBeforeRequestHandler(details);
|
|
// quickProfiler.stop();
|
|
// return r;
|
|
//},
|
|
onBeforeRequestHandler,
|
|
{
|
|
"urls": [
|
|
"http://*/*",
|
|
"https://*/*",
|
|
],
|
|
"types": [
|
|
"main_frame",
|
|
"sub_frame",
|
|
'stylesheet',
|
|
"script",
|
|
"image",
|
|
"object",
|
|
"xmlhttprequest",
|
|
"other"
|
|
]
|
|
},
|
|
[ "blocking" ]
|
|
);
|
|
|
|
console.log('µBlock> Beginning to intercept net requests at %s', (new Date()).toISOString());
|
|
|
|
/******************************************************************************/
|
|
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|