uBlock/js/messaging-handlers.js

580 lines
15 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
*/
/* global chrome, µBlock, YaMD5 */
/******************************************************************************/
/******************************************************************************/
(function() {
// popup.js
/******************************************************************************/
var getStats = function(request) {
var µb = µBlock;
var r = {
globalBlockedRequestCount: µb.localSettings.blockedRequestCount,
globalAllowedRequestCount: µb.localSettings.allowedRequestCount,
tabId: request.tabId,
pageURL: '',
pageBlockedRequestCount: 0,
pageAllowedRequestCount: 0,
netFilteringSwitch: false,
cosmeticFilteringSwitch: false,
logRequests: µb.userSettings.logRequests
};
var pageStore = µb.pageStoreFromTabId(request.tabId);
if ( pageStore ) {
r.pageURL = pageStore.pageURL;
r.pageHostname = pageStore.pageHostname;
r.pageBlockedRequestCount = pageStore.perLoadBlockedRequestCount;
r.pageAllowedRequestCount = pageStore.perLoadAllowedRequestCount;
r.netFilteringSwitch = pageStore.getNetFilteringSwitch();
}
return r;
};
/******************************************************************************/
var onMessage = function(request, sender, callback) {
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
switch ( request.what ) {
case 'stats':
response = getStats(request);
break;
case 'toggleNetFiltering':
µBlock.toggleNetFilteringSwitch(
request.url,
request.scope,
request.state
);
µBlock.updateBadgeAsync(request.tabId);
break;
case 'gotoPick':
chrome.tabs.executeScript(request.tabId, { file: 'js/element-picker.js' });
break;
default:
return µBlock.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('popup.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// contentscript-start.js
(function() {
var µb = µBlock;
var onMessage = function(request, sender, callback) {
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
var pageStore;
if ( sender && sender.tab ) {
pageStore = µb.pageStoreFromTabId(sender.tab.id);
}
switch ( request.what ) {
case 'retrieveDomainCosmeticSelectors':
if ( pageStore && pageStore.getNetFilteringSwitch() ) {
response = µb.cosmeticFilteringEngine.retrieveDomainSelectors(request);
}
break;
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µb.messaging.listen('contentscript-start.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// contentscript-end.js
(function() {
var µb = µBlock;
/******************************************************************************/
var tagNameToRequestTypeMap = {
'embed': 'object',
'iframe': 'sub_frame',
'img': 'image',
'object': 'object'
};
/******************************************************************************/
// Evaluate many requests
var filterRequests = function(pageStore, details) {
details.pageDomain = µb.URI.domainFromHostname(details.pageHostname);
var inRequests = details.requests;
var outRequests = [];
var request, result;
var i = inRequests.length;
while ( i-- ) {
request = inRequests[i];
if ( tagNameToRequestTypeMap.hasOwnProperty(request.tagName) === false ) {
continue;
}
result = pageStore.filterRequest(
details,
tagNameToRequestTypeMap[request.tagName],
request.url
);
if ( pageStore.boolFromResult(result) ) {
outRequests.push(request);
}
}
return {
collapse: µb.userSettings.collapseBlocked,
requests: outRequests
};
};
/******************************************************************************/
// Evaluate a single request
var filterRequest = function(pageStore, details) {
if ( tagNameToRequestTypeMap.hasOwnProperty(details.tagName) === false ) {
return;
}
details.pageDomain = µb.URI.domainFromHostname(details.pageHostname);
var result = pageStore.filterRequest(
details,
tagNameToRequestTypeMap[details.tagName],
details.requestURL
);
if ( pageStore.boolFromResult(result) ) {
return { collapse: µb.userSettings.collapseBlocked };
}
};
/******************************************************************************/
var onMessage = function(details, sender, callback) {
// Async
switch ( details.what ) {
default:
break;
}
// Sync
var response;
var pageStore;
if ( sender && sender.tab ) {
pageStore = µb.pageStoreFromTabId(sender.tab.id);
}
switch ( details.what ) {
case 'retrieveGenericCosmeticSelectors':
if ( pageStore && pageStore.getNetFilteringSwitch() ) {
response = µb.cosmeticFilteringEngine.retrieveGenericSelectors(details);
}
break;
case 'injectedSelectors':
µb.cosmeticFilteringEngine.addToSelectorCache(details);
break;
// Evaluate many requests
case 'filterRequests':
if ( pageStore && pageStore.getNetFilteringSwitch() ) {
response = filterRequests(pageStore, details);
}
break;
// Evaluate a single request
case 'filterRequest':
if ( pageStore && pageStore.getNetFilteringSwitch() ) {
response = filterRequest(pageStore, details);
}
break;
default:
return µb.messaging.defaultHandler(details, sender, callback);
}
callback(response);
};
µb.messaging.listen('contentscript-end.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// element-picker.js
(function() {
var onMessage = function(request, sender, callback) {
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
switch ( request.what ) {
case 'i18n':
response = {
create: chrome.i18n.getMessage('pickerCreate'),
pick: chrome.i18n.getMessage('pickerPick'),
quit: chrome.i18n.getMessage('pickerQuit'),
netFilters: chrome.i18n.getMessage('pickerNetFilters'),
cosmeticFilters: chrome.i18n.getMessage('pickerCosmeticFilters')
};
break;
case 'createUserFilter':
µBlock.appendUserFilters(request.filters);
break;
default:
return µBlock.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('element-picker.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// 3p-filters.js
(function() {
var getLists = function(callback) {
var µb = µBlock;
var r = {
available: null,
current: µb.remoteBlacklists,
cosmetic: µb.userSettings.parseAllABPHideFilters,
netFilterCount: µb.netFilteringEngine.getFilterCount(),
cosmeticFilterCount: µb.cosmeticFilteringEngine.getFilterCount(),
autoUpdate: µb.userSettings.autoUpdate,
userFiltersPath: µb.userFiltersPath,
cache: null
};
var onMetadataReady = function(entries) {
r.cache = entries;
callback(r);
};
var onLists = function(lists) {
r.available = lists;
µb.assets.metadata(onMetadataReady);
};
µb.getAvailableLists(onLists);
};
/******************************************************************************/
var onMessage = function(request, sender, callback) {
var µb = µBlock;
// Async
switch ( request.what ) {
case 'getLists':
return getLists(callback);
case 'getLists':
return getLists(callback);
case 'purgeAllCaches':
return µb.assets.purgeAll(callback);
case 'writeUserUbiquitousBlockRules':
return µb.assets.put(µb.userFiltersPath, request.content, callback);
default:
break;
}
// Sync
var response;
switch ( request.what ) {
case 'purgeCache':
µb.assets.purge(request.path);
break;
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('3p-filters.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// 1p-filters.js
(function() {
var onMessage = function(request, sender, callback) {
var µb = µBlock;
// Async
switch ( request.what ) {
case 'readUserFilters':
return µb.assets.get(µb.userFiltersPath, callback);
case 'writeUserFilters':
return µb.assets.put(µb.userFiltersPath, request.content, callback);
default:
break;
}
// Sync
var response;
switch ( request.what ) {
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('1p-filters.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// whitelist.js
(function() {
var onMessage = function(request, sender, callback) {
var µb = µBlock;
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
switch ( request.what ) {
case 'getWhitelist':
response = µb.stringFromWhitelist(µb.netWhitelist);
break;
case 'setWhitelist':
µb.netWhitelist = µb.whitelistFromString(request.whitelist);
µb.saveWhitelist();
break;
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('whitelist.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// stats.js
(function() {
var getPageDetails = function(µb, tabId) {
var r = {
blockedRequests: [],
allowedRequests: [],
hash: ''
};
var pageStore = µb.pageStores[tabId];
if ( !pageStore ) {
return r;
}
var prepareRequests = function(wantBlocked, hasher) {
var µburi = µb.URI;
var dict = pageStore.netFilteringCache.fetchAll();
var r = [];
var details, pos, result, hostname, domain;
for ( var url in dict ) {
if ( dict.hasOwnProperty(url) === false ) {
continue;
}
details = dict[url].data;
if ( typeof details !== 'string' ) {
continue;
}
pos = details.indexOf('\t');
result = details.slice(pos + 1);
if ( wantBlocked !== pageStore.boolFromResult(result) ) {
continue;
}
hasher.appendStr(url);
hasher.appendStr(details);
hostname = µburi.hostnameFromURI(url);
domain = µburi.domainFromHostname(hostname) || hostname;
r.push({
type: details.slice(0, pos),
domain: domain,
url: url,
reason: result
});
}
return r;
};
var hasher = new YaMD5();
if ( µb.userSettings.logRequests ) {
r.blockedRequests = prepareRequests(true, hasher);
r.allowedRequests = prepareRequests(false, hasher);
}
r.hash = hasher.end();
return r;
};
/******************************************************************************/
var onMessage = function(request, sender, callback) {
var µb = µBlock;
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
switch ( request.what ) {
case 'getPageSelectors':
response = Object.keys(µb.pageStores);
break;
case 'getPageDetails':
response = getPageDetails(µb, request.tabId);
break;
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('stats.js', onMessage);
})();
/******************************************************************************/
/******************************************************************************/
// about.js
(function() {
var onMessage = function(request, sender, callback) {
var µb = µBlock;
// Async
switch ( request.what ) {
default:
break;
}
// Sync
var response;
switch ( request.what ) {
default:
return µb.messaging.defaultHandler(request, sender, callback);
}
callback(response);
};
µBlock.messaging.listen('about.js', onMessage);
})();
// https://www.youtube.com/watch?v=3_WcygKJP1k
/******************************************************************************/