mirror of
https://github.com/gorhill/uBlock.git
synced 2024-11-17 16:02:33 +01:00
fa83744b58
The purpose of using a custom base128 encoder is to convert array buffers into strings, to allow a direct string-to-array buffer conversion at load time: string => array buffer Whereas a JSON array would require an extra step: JSON array as string => JS array => array buffer Turns out that the current use of a custom base128 encoding results in a significantly larger selfie storage usage when converting array buffers into strings. Speculation: possibly the browser convert the strings to save into JSON strings internally. Since the custom base128 encoder is likely to cause the resulting string to contain a lot of unprintable ASCII characters, these will need to be escaped when converted to JSON -- escaped characters occupy more space than non-escaped ones. Using a sequence of base 64 numbers means only printable will be present in the output string, hence no escaping necessary. I have observed significant reduction in storage usage for selfie purpose.
191 lines
6.1 KiB
JavaScript
191 lines
6.1 KiB
JavaScript
/*******************************************************************************
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uBlock Origin - a browser extension to block requests.
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Copyright (C) 2014-present Raymond Hill
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see {http://www.gnu.org/licenses/}.
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Home: https://github.com/gorhill/uBlock
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*/
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'use strict';
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/******************************************************************************/
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// Not all platforms may have properly declared vAPI.webextFlavor.
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if ( vAPI.webextFlavor === undefined ) {
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vAPI.webextFlavor = { major: 0, soup: new Set([ 'ublock' ]) };
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}
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/******************************************************************************/
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const µBlock = (function() { // jshint ignore:line
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const hiddenSettingsDefault = {
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assetFetchTimeout: 30,
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autoCommentFilterTemplate: '{{date}} {{origin}}',
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autoUpdateAssetFetchPeriod: 120,
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autoUpdatePeriod: 7,
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cacheStorageAPI: 'unset',
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cacheStorageCompression: true,
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cacheControlForFirefox1376932: 'no-cache, no-store, must-revalidate',
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consoleLogLevel: 'unset',
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debugScriptlets: false,
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disableWebAssembly: false,
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ignoreRedirectFilters: false,
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ignoreScriptInjectFilters: false,
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manualUpdateAssetFetchPeriod: 500,
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popupFontSize: 'unset',
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requestJournalProcessPeriod: 1000,
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selfieAfter: 11,
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strictBlockingBypassDuration: 120,
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suspendTabsUntilReady: 'unset',
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userResourcesLocation: 'unset'
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};
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const whitelistDefault = [
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'about-scheme',
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'chrome-extension-scheme',
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'chrome-scheme',
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'moz-extension-scheme',
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'opera-scheme',
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'vivaldi-scheme',
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'wyciwyg-scheme', // Firefox's "What-You-Cache-Is-What-You-Get"
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];
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return {
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firstInstall: false,
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userSettings: {
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advancedUserEnabled: false,
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alwaysDetachLogger: true,
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autoUpdate: true,
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cloudStorageEnabled: false,
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collapseBlocked: true,
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colorBlindFriendly: false,
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contextMenuEnabled: true,
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dynamicFilteringEnabled: false,
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externalLists: [],
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firewallPaneMinimized: true,
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hyperlinkAuditingDisabled: true,
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ignoreGenericCosmeticFilters: false,
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largeMediaSize: 50,
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parseAllABPHideFilters: true,
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prefetchingDisabled: true,
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requestLogMaxEntries: 1000,
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showIconBadge: true,
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tooltipsDisabled: false,
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webrtcIPAddressHidden: false
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},
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hiddenSettingsDefault: hiddenSettingsDefault,
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hiddenSettings: (function() {
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const out = Object.assign({}, hiddenSettingsDefault);
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const json = vAPI.localStorage.getItem('immediateHiddenSettings');
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if ( typeof json !== 'string' ) { return out; }
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try {
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const o = JSON.parse(json);
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if ( o instanceof Object ) {
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for ( const k in o ) {
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if ( out.hasOwnProperty(k) ) { out[k] = o[k]; }
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}
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self.log.verbosity = out.consoleLogLevel;
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if ( typeof out.suspendTabsUntilReady === 'boolean' ) {
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out.suspendTabsUntilReady = out.suspendTabsUntilReady
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? 'yes'
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: 'unset';
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}
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}
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}
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catch(ex) {
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}
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return out;
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})(),
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// Features detection.
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privacySettingsSupported: vAPI.browserSettings instanceof Object,
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cloudStorageSupported: vAPI.cloud instanceof Object,
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canFilterResponseData: typeof browser.webRequest.filterResponseData === 'function',
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canInjectScriptletsNow: vAPI.webextFlavor.soup.has('chromium'),
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// https://github.com/chrisaljoudi/uBlock/issues/180
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// Whitelist directives need to be loaded once the PSL is available
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netWhitelist: {},
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netWhitelistModifyTime: 0,
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netWhitelistDefault: whitelistDefault.join('\n'),
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localSettings: {
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blockedRequestCount: 0,
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allowedRequestCount: 0
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},
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localSettingsLastModified: 0,
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localSettingsLastSaved: 0,
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// Read-only
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systemSettings: {
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compiledMagic: 10, // Increase when compiled format changes
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selfieMagic: 11 // Increase when selfie format changes
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},
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restoreBackupSettings: {
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lastRestoreFile: '',
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lastRestoreTime: 0,
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lastBackupFile: '',
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lastBackupTime: 0
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},
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commandShortcuts: new Map(),
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// Allows to fully customize uBO's assets, typically set through admin
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// settings. The content of 'assets.json' will also tell which filter
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// lists to enable by default when uBO is first installed.
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assetsBootstrapLocation: 'assets/assets.json',
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userFiltersPath: 'user-filters',
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pslAssetKey: 'public_suffix_list.dat',
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selectedFilterLists: [],
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availableFilterLists: {},
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pageStores: new Map(),
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pageStoresToken: 0,
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storageQuota: vAPI.storage.QUOTA_BYTES,
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storageUsed: 0,
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noopFunc: function(){},
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apiErrorCount: 0,
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mouseEventRegister: {
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tabId: '',
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x: -1,
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y: -1,
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url: ''
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},
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epickerTarget: '',
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epickerZap: false,
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epickerEprom: null,
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scriptlets: {},
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};
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})();
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/******************************************************************************/
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