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https://github.com/gorhill/uBlock.git
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code review
This commit is contained in:
gorhill
parent
c67e126734
commit
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75
js/assets.js
75
js/assets.js
@ -67,7 +67,7 @@ var RepoMetadata = function() {
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this.waiting = [];
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};
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var repoMeta = null;
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var repoMetadata = null;
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/******************************************************************************/
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@ -217,7 +217,7 @@ var getTextFileFromURL = function(url, onLoad, onError) {
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var updateLocalChecksums = function() {
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var localChecksums = [];
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var entries = repoMeta.entries;
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var entries = repoMetadata.entries;
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var entry;
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for ( var path in entries ) {
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if ( entries.hasOwnProperty(path) === false ) {
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@ -235,17 +235,17 @@ var updateLocalChecksums = function() {
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// Gather meta data of all assets.
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var getRepoMeta = function(callback, update) {
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var getRepoMetadata = function(callback, update) {
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callback = callback || nullFunc;
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if ( update ) {
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repoMeta = null;
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repoMetadata = null;
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}
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if ( repoMeta !== null ) {
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if ( repoMeta.waiting.length !== 0 ) {
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repoMeta.waiting.push(callback);
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if ( repoMetadata !== null ) {
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if ( repoMetadata.waiting.length !== 0 ) {
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repoMetadata.waiting.push(callback);
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} else {
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callback(repoMeta);
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callback(repoMetadata);
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}
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return;
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}
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@ -253,7 +253,7 @@ var getRepoMeta = function(callback, update) {
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// https://github.com/gorhill/uBlock/issues/84
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// First try to load from the actual home server of a third-party.
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var parseHomeURLs = function(text) {
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var entries = repoMeta.entries;
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var entries = repoMetadata.entries;
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var urlPairs = text.split(/\n\n+/);
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var i = urlPairs.length;
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var pair, pos, k, v;
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@ -273,8 +273,8 @@ var getRepoMeta = function(callback, update) {
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}
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entries[k].homeURL = v;
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}
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while ( callback = repoMeta.waiting.pop() ) {
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callback(repoMeta);
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while ( callback = repoMetadata.waiting.pop() ) {
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callback(repoMetadata);
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}
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};
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@ -285,7 +285,7 @@ var getRepoMeta = function(callback, update) {
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};
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var onRepoHomeURLsLoaded = function(details) {
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var entries = repoMeta.entries;
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var entries = repoMetadata.entries;
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var entry = entries[pathToHomeURLs];
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if ( YaMD5.hashStr(details.content) !== entry.repoChecksum ) {
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entry.repoChecksum = entry.localChecksum;
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@ -295,17 +295,15 @@ var getRepoMeta = function(callback, update) {
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cachedAssetsManager.save(pathToHomeURLs, details.content, onLocalHomeURLsLoaded);
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};
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var checksumCountdown = 2;
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var localChecksums = '';
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var repoChecksums = '';
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var localChecksums;
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var repoChecksums;
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var checksumsReceived = function() {
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checksumCountdown -= 1;
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if ( checksumCountdown !== 0 ) {
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if ( localChecksums === undefined || repoChecksums === undefined ) {
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return;
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}
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// Remove from cache assets which no longer exist
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var entries = repoMeta.entries;
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// Remove from cache assets which no longer exist in the repo
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var entries = repoMetadata.entries;
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var checksumsChanged = false;
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var entry;
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for ( var path in entries ) {
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@ -347,7 +345,7 @@ var getRepoMeta = function(callback, update) {
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};
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var parseChecksums = function(text, which) {
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var entries = repoMeta.entries;
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var entries = repoMetadata.entries;
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var lines = text.split(/\n+/);
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var i = lines.length;
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var fields, assetPath;
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@ -378,8 +376,8 @@ var getRepoMeta = function(callback, update) {
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checksumsReceived();
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};
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repoMeta = new RepoMetadata();
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repoMeta.waiting.push(callback);
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repoMetadata = new RepoMetadata();
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repoMetadata.waiting.push(callback);
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readRepoFile('assets/checksums.txt', onRepoChecksumsLoaded);
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readLocalFile('assets/checksums.txt', onLocalChecksumsLoaded);
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};
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@ -388,6 +386,9 @@ var getRepoMeta = function(callback, update) {
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/******************************************************************************/
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// Get a local asset, do not look-up repo or remote location if local asset
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// is not found.
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var readLocalFile = function(path, callback) {
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var reportBack = function(content, err) {
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var details = {
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@ -400,31 +401,39 @@ var readLocalFile = function(path, callback) {
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callback(details);
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};
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var onLocalFileLoaded = function() {
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// console.log('µBlock> onLocalFileLoaded()');
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var onInstallFileLoaded = function() {
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// console.log('µBlock> readLocalFile("%s") / onInstallFileLoaded()', path);
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reportBack(this.responseText);
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this.onload = this.onerror = null;
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};
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var onLocalFileError = function() {
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console.error('µBlock> readLocalFile() / onLocalFileError("%s")', path);
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var onInstallFileError = function() {
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console.error('µBlock> readLocalFile("%s") / onInstallFileError()', path);
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reportBack('', 'Error');
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this.onload = this.onerror = null;
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};
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var onCachedContentLoaded = function(details) {
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// console.log('µBlock> readLocalFile() / onCacheFileLoaded()');
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// console.log('µBlock> readLocalFile("%s") / onCachedContentLoaded()', path);
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reportBack(details.content);
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};
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var onCachedContentError = function(details) {
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// console.error('µBlock> readLocalFile() / onCacheFileError("%s")', path);
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getTextFileFromURL(chrome.runtime.getURL(details.path), onLocalFileLoaded, onLocalFileError);
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// console.error('µBlock> readLocalFile("%s") / onCachedContentError()', path);
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if ( reIsExternalPath.test(path) ) {
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reportBack('', 'Error: asset not found');
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return;
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}
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getTextFileFromURL(chrome.runtime.getURL(details.path), onInstallFileLoaded, onInstallFileError);
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};
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cachedAssetsManager.load(path, onCachedContentLoaded, onCachedContentError);
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};
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exports.getLocal = readLocalFile;
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// https://www.youtube.com/watch?v=r9KVpuFPtHc
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/******************************************************************************/
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// Get the repository copy of a built-in asset.
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@ -654,7 +663,7 @@ var readRepoCopyAsset = function(path, callback) {
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cachedAssetsManager.entries(onCacheMetaReady);
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};
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getRepoMeta(onRepoMetaReady);
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getRepoMetadata(onRepoMetaReady);
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};
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// https://www.youtube.com/watch?v=uvUW4ozs7pY
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@ -753,7 +762,7 @@ var readRepoOnlyAsset = function(path, callback) {
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cachedAssetsManager.load(path, onCachedContentLoaded, onCachedContentError);
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};
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getRepoMeta(onRepoMetaReady);
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getRepoMetadata(onRepoMetaReady);
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};
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/******************************************************************************/
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@ -927,7 +936,7 @@ exports.get = function(path, callback) {
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readRepoOnlyAsset(path, callback);
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};
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getRepoMeta(onRepoMetaReady);
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getRepoMetadata(onRepoMetaReady);
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};
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// https://www.youtube.com/watch?v=98y0Q7nLGWk
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@ -991,7 +1000,7 @@ exports.metadata = function(callback) {
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entryOut.homeURL = path;
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}
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}
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getRepoMeta(onRepoMetaReady);
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getRepoMetadata(onRepoMetaReady);
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};
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cachedAssetsManager.entries(onCacheMetaReady);
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@ -140,7 +140,7 @@ function defaultHandler(request, sender, callback) {
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// Async
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switch ( request.what ) {
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case 'getAssetContent':
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return µBlock.assets.get(request.url, callback);
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return µBlock.assets.getLocal(request.url, callback);
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case 'loadUbiquitousAllowRules':
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return µBlock.loadUbiquitousWhitelists();
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@ -123,7 +123,7 @@ exports.formatCount = function(count) {
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return s;
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};
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// https://www.youtube.com/watch?v=uvUW4ozs7pY
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// https://www.youtube.com/watch?v=DyvzfyqYm_s
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/******************************************************************************/
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