mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-11 17:41:03 +01:00
527 lines
16 KiB
JavaScript
527 lines
16 KiB
JavaScript
/*******************************************************************************
|
|
|
|
uBlock Origin - a browser extension to block requests.
|
|
Copyright (C) 2014-2016 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
|
|
*/
|
|
|
|
/******************************************************************************/
|
|
|
|
(function(){
|
|
|
|
'use strict';
|
|
|
|
/******************************************************************************/
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/405
|
|
// Be more flexible with whitelist syntax
|
|
|
|
// Any special regexp char will be escaped
|
|
var whitelistDirectiveEscape = /[-\/\\^$+?.()|[\]{}]/g;
|
|
|
|
// All `*` will be expanded into `.*`
|
|
var whitelistDirectiveEscapeAsterisk = /\*/g;
|
|
|
|
// Probably manually entered whitelist directive
|
|
var isHandcraftedWhitelistDirective = function(directive) {
|
|
return directive.indexOf('/') !== -1 &&
|
|
directive.indexOf('*') !== -1;
|
|
};
|
|
|
|
var matchWhitelistDirective = function(url, hostname, directive) {
|
|
// Directive is a plain hostname
|
|
if ( directive.indexOf('/') === -1 ) {
|
|
return hostname.endsWith(directive) &&
|
|
(hostname.length === directive.length ||
|
|
hostname.charAt(hostname.length - directive.length - 1) === '.');
|
|
}
|
|
// Match URL exactly
|
|
if ( directive.indexOf('*') === -1 ) {
|
|
return url === directive;
|
|
}
|
|
// TODO: Revisit implementation to avoid creating a regex each time.
|
|
// Regex escape code inspired from:
|
|
// "Is there a RegExp.escape function in Javascript?"
|
|
// http://stackoverflow.com/a/3561711
|
|
var reStr = directive.replace(whitelistDirectiveEscape, '\\$&')
|
|
.replace(whitelistDirectiveEscapeAsterisk, '.*');
|
|
var re = new RegExp(reStr);
|
|
return re.test(url);
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.getNetFilteringSwitch = function(url) {
|
|
var netWhitelist = this.netWhitelist;
|
|
var buckets, i, pos;
|
|
var targetHostname = this.URI.hostnameFromURI(url);
|
|
var key = targetHostname;
|
|
for (;;) {
|
|
if ( netWhitelist.hasOwnProperty(key) ) {
|
|
buckets = netWhitelist[key];
|
|
i = buckets.length;
|
|
while ( i-- ) {
|
|
if ( matchWhitelistDirective(url, targetHostname, buckets[i]) ) {
|
|
// console.log('"%s" matche url "%s"', buckets[i], url);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
pos = key.indexOf('.');
|
|
if ( pos === -1 ) {
|
|
break;
|
|
}
|
|
key = key.slice(pos + 1);
|
|
}
|
|
return true;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.toggleNetFilteringSwitch = function(url, scope, newState) {
|
|
var currentState = this.getNetFilteringSwitch(url);
|
|
if ( newState === undefined ) {
|
|
newState = !currentState;
|
|
}
|
|
if ( newState === currentState ) {
|
|
return currentState;
|
|
}
|
|
|
|
var netWhitelist = this.netWhitelist;
|
|
var pos = url.indexOf('#');
|
|
var targetURL = pos !== -1 ? url.slice(0, pos) : url;
|
|
var targetHostname = this.URI.hostnameFromURI(targetURL);
|
|
var key = targetHostname;
|
|
var directive = scope === 'page' ? targetURL : targetHostname;
|
|
|
|
// Add to directive list
|
|
if ( newState === false ) {
|
|
if ( netWhitelist.hasOwnProperty(key) === false ) {
|
|
netWhitelist[key] = [];
|
|
}
|
|
netWhitelist[key].push(directive);
|
|
this.saveWhitelist();
|
|
return true;
|
|
}
|
|
|
|
// Remove from directive list whatever causes current URL to be whitelisted
|
|
var buckets, i;
|
|
for (;;) {
|
|
if ( netWhitelist.hasOwnProperty(key) ) {
|
|
buckets = netWhitelist[key];
|
|
i = buckets.length;
|
|
while ( i-- ) {
|
|
directive = buckets[i];
|
|
if ( !matchWhitelistDirective(targetURL, targetHostname, directive) ) {
|
|
continue;
|
|
}
|
|
buckets.splice(i, 1);
|
|
// If it is a directive which can't be created easily through
|
|
// the user interface, keep it around as a commented out
|
|
// directive
|
|
if ( isHandcraftedWhitelistDirective(directive) ) {
|
|
netWhitelist['#'].push('# ' + directive);
|
|
}
|
|
}
|
|
if ( buckets.length === 0 ) {
|
|
delete netWhitelist[key];
|
|
}
|
|
}
|
|
pos = key.indexOf('.');
|
|
if ( pos === -1 ) {
|
|
break;
|
|
}
|
|
key = key.slice(pos + 1);
|
|
}
|
|
this.saveWhitelist();
|
|
return true;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.stringFromWhitelist = function(whitelist) {
|
|
var r = {};
|
|
var i, bucket;
|
|
for ( var key in whitelist ) {
|
|
if ( whitelist.hasOwnProperty(key) === false ) {
|
|
continue;
|
|
}
|
|
bucket = whitelist[key];
|
|
i = bucket.length;
|
|
while ( i-- ) {
|
|
r[bucket[i]] = true;
|
|
}
|
|
}
|
|
return Object.keys(r).sort(function(a,b){return a.localeCompare(b);}).join('\n');
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.whitelistFromString = function(s) {
|
|
var whitelist = {
|
|
'#': []
|
|
};
|
|
var reInvalidHostname = /[^a-z0-9.\-\[\]:]/;
|
|
var reHostnameExtractor = /([a-z0-9\[][a-z0-9.\-]*[a-z0-9\]])(?::[\d*]+)?\/(?:[^\x00-\x20\/]|$)[^\x00-\x20]*$/;
|
|
var lines = s.split(/[\n\r]+/);
|
|
var line, matches, key, directive;
|
|
for ( var i = 0; i < lines.length; i++ ) {
|
|
line = lines[i].trim();
|
|
// https://github.com/gorhill/uBlock/issues/171
|
|
// Skip empty lines
|
|
if ( line === '' ) {
|
|
continue;
|
|
}
|
|
|
|
// Don't throw out commented out lines: user might want to fix them
|
|
if ( line.startsWith('#') ) {
|
|
key = '#';
|
|
directive = line;
|
|
}
|
|
// Plain hostname
|
|
else if ( line.indexOf('/') === -1 ) {
|
|
if ( reInvalidHostname.test(line) ) {
|
|
key = '#';
|
|
directive = '# ' + line;
|
|
} else {
|
|
key = directive = line;
|
|
}
|
|
}
|
|
// URL, possibly wildcarded: there MUST be at least one hostname
|
|
// label (or else it would be just impossible to make an efficient
|
|
// dict.
|
|
else {
|
|
matches = reHostnameExtractor.exec(line);
|
|
if ( !matches || matches.length !== 2 ) {
|
|
key = '#';
|
|
directive = '# ' + line;
|
|
} else {
|
|
key = matches[1];
|
|
directive = line;
|
|
}
|
|
}
|
|
|
|
// https://github.com/gorhill/uBlock/issues/171
|
|
// Skip empty keys
|
|
if ( key === '' ) {
|
|
continue;
|
|
}
|
|
|
|
// Be sure this stays fixed:
|
|
// https://github.com/chrisaljoudi/uBlock/issues/185
|
|
if ( whitelist.hasOwnProperty(key) === false ) {
|
|
whitelist[key] = [];
|
|
}
|
|
whitelist[key].push(directive);
|
|
}
|
|
return whitelist;
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.changeUserSettings = function(name, value) {
|
|
var us = this.userSettings;
|
|
|
|
// Return all settings if none specified.
|
|
if ( name === undefined ) {
|
|
us = JSON.parse(JSON.stringify(us));
|
|
us.noCosmeticFiltering = this.hnSwitches.evaluate('no-cosmetic-filtering', '*') === 1;
|
|
us.noLargeMedia = this.hnSwitches.evaluate('no-large-media', '*') === 1;
|
|
us.noRemoteFonts = this.hnSwitches.evaluate('no-remote-fonts', '*') === 1;
|
|
return us;
|
|
}
|
|
|
|
if ( typeof name !== 'string' || name === '' ) {
|
|
return;
|
|
}
|
|
|
|
if ( value === undefined ) {
|
|
return us[name];
|
|
}
|
|
|
|
// Pre-change
|
|
switch ( name ) {
|
|
case 'largeMediaSize':
|
|
if ( typeof value !== 'number' ) {
|
|
value = parseInt(value, 10) || 0;
|
|
}
|
|
value = Math.ceil(Math.max(value, 0));
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
// Change -- but only if the user setting actually exists.
|
|
var mustSave = us.hasOwnProperty(name) &&
|
|
value !== us[name];
|
|
if ( mustSave ) {
|
|
us[name] = value;
|
|
}
|
|
|
|
// Post-change
|
|
switch ( name ) {
|
|
case 'collapseBlocked':
|
|
if ( value === false ) {
|
|
this.cosmeticFilteringEngine.removeFromSelectorCache('*', 'net');
|
|
}
|
|
break;
|
|
case 'contextMenuEnabled':
|
|
this.contextMenu.update(null);
|
|
break;
|
|
case 'hyperlinkAuditingDisabled':
|
|
vAPI.browserSettings.set({ 'hyperlinkAuditing': !value });
|
|
break;
|
|
case 'noCosmeticFiltering':
|
|
if ( this.hnSwitches.toggle('no-cosmetic-filtering', '*', value ? 1 : 0) ) {
|
|
this.saveHostnameSwitches();
|
|
}
|
|
break;
|
|
case 'noLargeMedia':
|
|
if ( this.hnSwitches.toggle('no-large-media', '*', value ? 1 : 0) ) {
|
|
this.saveHostnameSwitches();
|
|
}
|
|
break;
|
|
case 'noRemoteFonts':
|
|
if ( this.hnSwitches.toggle('no-remote-fonts', '*', value ? 1 : 0) ) {
|
|
this.saveHostnameSwitches();
|
|
}
|
|
break;
|
|
case 'prefetchingDisabled':
|
|
vAPI.browserSettings.set({ 'prefetching': !value });
|
|
break;
|
|
case 'webrtcIPAddressHidden':
|
|
vAPI.browserSettings.set({ 'webrtcIPAddress': !value });
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
if ( mustSave ) {
|
|
this.saveUserSettings();
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.elementPickerExec = function(tabId, targetElement) {
|
|
if ( vAPI.isBehindTheSceneTabId(tabId) ) {
|
|
return;
|
|
}
|
|
this.epickerTarget = targetElement || '';
|
|
this.scriptlets.inject(tabId, 'element-picker');
|
|
if ( typeof vAPI.tabs.select === 'function' ) {
|
|
vAPI.tabs.select(tabId);
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.toggleFirewallRule = function(details) {
|
|
var requestType = details.requestType;
|
|
|
|
if ( details.action !== 0 ) {
|
|
this.sessionFirewall.setCellZ(details.srcHostname, details.desHostname, requestType, details.action);
|
|
} else {
|
|
this.sessionFirewall.unsetCell(details.srcHostname, details.desHostname, requestType);
|
|
}
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/731#issuecomment-73937469
|
|
if ( details.persist ) {
|
|
if ( details.action !== 0 ) {
|
|
this.permanentFirewall.setCellZ(details.srcHostname, details.desHostname, requestType, details.action);
|
|
} else {
|
|
this.permanentFirewall.unsetCell(details.srcHostname, details.desHostname, requestType, details.action);
|
|
}
|
|
this.savePermanentFirewallRules();
|
|
}
|
|
|
|
// https://github.com/gorhill/uBlock/issues/1662
|
|
// Flush all cached `net` cosmetic filters if we are dealing with a
|
|
// collapsible type: any of the cached entries could be a resource on the
|
|
// target page.
|
|
var srcHostname = details.srcHostname;
|
|
if (
|
|
(srcHostname !== '*') &&
|
|
(requestType === '*' || requestType === 'image' || requestType === '3p' || requestType === '3p-frame')
|
|
) {
|
|
srcHostname = '*';
|
|
}
|
|
|
|
// https://github.com/chrisaljoudi/uBlock/issues/420
|
|
this.cosmeticFilteringEngine.removeFromSelectorCache(srcHostname, 'net');
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.toggleURLFilteringRule = function(details) {
|
|
var changed = this.sessionURLFiltering.setRule(
|
|
details.context,
|
|
details.url,
|
|
details.type,
|
|
details.action
|
|
);
|
|
|
|
if ( !changed ) {
|
|
return;
|
|
}
|
|
|
|
this.cosmeticFilteringEngine.removeFromSelectorCache(details.context, 'net');
|
|
|
|
if ( !details.persist ) {
|
|
return;
|
|
}
|
|
|
|
changed = this.permanentURLFiltering.setRule(
|
|
details.context,
|
|
details.url,
|
|
details.type,
|
|
details.action
|
|
);
|
|
|
|
if ( changed ) {
|
|
this.savePermanentFirewallRules();
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.isBlockResult = function(result) {
|
|
return typeof result === 'string' && result.charAt(1) === 'b';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.isAllowResult = function(result) {
|
|
return typeof result !== 'string' || result.charAt(1) !== 'b';
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.toggleHostnameSwitch = function(details) {
|
|
if ( this.hnSwitches.toggleZ(details.name, details.hostname, !!details.deep, details.state) ) {
|
|
this.saveHostnameSwitches();
|
|
}
|
|
|
|
// Take action if needed
|
|
switch ( details.name ) {
|
|
case 'no-cosmetic-filtering':
|
|
this.scriptlets.injectDeep(
|
|
details.tabId,
|
|
details.state ? 'cosmetic-off' : 'cosmetic-on'
|
|
);
|
|
break;
|
|
case 'no-large-media':
|
|
if ( details.state === false ) {
|
|
var pageStore = this.pageStoreFromTabId(details.tabId);
|
|
if ( pageStore !== null ) {
|
|
pageStore.temporarilyAllowLargeMediaElements();
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
};
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.logCosmeticFilters = (function() {
|
|
var tabIdToTimerMap = {};
|
|
|
|
var injectNow = function(tabId) {
|
|
delete tabIdToTimerMap[tabId];
|
|
µBlock.scriptlets.injectDeep(tabId, 'cosmetic-logger');
|
|
};
|
|
|
|
var injectAsync = function(tabId) {
|
|
if ( tabIdToTimerMap.hasOwnProperty(tabId) ) {
|
|
return;
|
|
}
|
|
tabIdToTimerMap[tabId] = vAPI.setTimeout(
|
|
injectNow.bind(null, tabId),
|
|
100
|
|
);
|
|
};
|
|
|
|
return injectAsync;
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
µBlock.scriptlets = (function() {
|
|
var pendingEntries = Object.create(null);
|
|
|
|
var Entry = function(tabId, scriptlet, callback) {
|
|
this.tabId = tabId;
|
|
this.scriptlet = scriptlet;
|
|
this.callback = callback;
|
|
this.timer = vAPI.setTimeout(this.service.bind(this), 1000);
|
|
};
|
|
|
|
Entry.prototype.service = function(response) {
|
|
if ( this.timer !== null ) {
|
|
clearTimeout(this.timer);
|
|
}
|
|
delete pendingEntries[makeKey(this.tabId, this.scriptlet)];
|
|
this.callback(response);
|
|
};
|
|
|
|
var makeKey = function(tabId, scriptlet) {
|
|
return tabId + ' ' + scriptlet;
|
|
};
|
|
|
|
var report = function(tabId, scriptlet, response) {
|
|
var key = makeKey(tabId, scriptlet);
|
|
var entry = pendingEntries[key];
|
|
if ( entry === undefined ) {
|
|
return;
|
|
}
|
|
entry.service(response);
|
|
};
|
|
|
|
var inject = function(tabId, scriptlet, callback) {
|
|
if ( typeof callback === 'function' ) {
|
|
if ( vAPI.isBehindTheSceneTabId(tabId) ) {
|
|
callback();
|
|
return;
|
|
}
|
|
var key = makeKey(tabId, scriptlet);
|
|
if ( pendingEntries[key] !== undefined ) {
|
|
callback();
|
|
return;
|
|
}
|
|
pendingEntries[key] = new Entry(tabId, scriptlet, callback);
|
|
}
|
|
vAPI.tabs.injectScript(tabId, { file: 'js/scriptlets/' + scriptlet + '.js' });
|
|
};
|
|
|
|
// TODO: think about a callback mechanism.
|
|
var injectDeep = function(tabId, scriptlet) {
|
|
vAPI.tabs.injectScript(tabId, {
|
|
file: 'js/scriptlets/' + scriptlet + '.js',
|
|
allFrames: true
|
|
});
|
|
};
|
|
|
|
return {
|
|
inject: inject,
|
|
injectDeep: injectDeep,
|
|
report: report
|
|
};
|
|
})();
|
|
|
|
/******************************************************************************/
|
|
|
|
})();
|