/******************************************************************************* 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 */ /* 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) { // console.debug('onBeforeRequestHandler()> "%s": %o', details.url, details); // Do not block behind the scene requests. var tabId = details.tabId; if ( tabId < 0 ) { return; } var µb = µBlock; var requestType = details.type; // Never block root main doc. if ( requestType === 'main_frame' && details.parentFrameId < 0 ) { µb.bindTabToPageStats(tabId, details.url); return; } var requestURL = details.url; var µburi = µb.URI.set(details.url); // Ignore non-http schemes var requestScheme = µburi.scheme; if ( requestScheme.indexOf('http') !== 0 ) { return; } var requestHostname = µburi.hostname; var requestPath = µburi.path; // 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(tabId) || {}; var reason = false; if ( µb.getNetFilteringSwitch(pageStore.pageHostname) ) { //quickProfiler.start('abpFilters.matchString'); reason = µb.abpFilters.matchString(pageStore, requestURL, requestType, requestHostname); //quickProfiler.stop(); } // Record what happened. if ( pageStore.recordRequest ) { pageStore.recordRequest(requestType, requestURL, reason); } // Not blocked? if ( reason === false ) { return; } // Blocked //console.debug('µBlock> onBeforeRequestHandler()> BLOCK "%s" because "%s"', details.url, reason); // https://github.com/gorhill/uBlock/issues/18 // Do not use redirection, we need to block outright to be sure the request // will not be made. There can be no such guarantee with redirection. 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()); /******************************************************************************/ })(); /******************************************************************************/