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Add unlimitedStorage
to Firefox manifest; add timeout to IndexedDB access
Related issue: - https://github.com/uBlockOrigin/uBlock-issues/issues/416 The Chromium version of uBO has declared `unlimitedStorage` since the extension was first published in 2014. Declaring this permission in Firefox brings uBO inline with the Chromium version. I suspect some reported errors could be caused by IndexedDB eviction due to the lack of `unlimitedStorage` permission. Additionally, a timeout has been added when uBO tries to access its indexedDB storage. It's unclear whether this will help with the mentioned related issue though, the root cause is still to be identified.
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@ -74,6 +74,7 @@
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"privacy",
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"privacy",
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"storage",
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"storage",
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"tabs",
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"tabs",
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"unlimitedStorage",
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"webNavigation",
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"webNavigation",
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"webRequest",
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"webRequest",
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"webRequestBlocking",
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"webRequestBlocking",
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@ -226,19 +226,30 @@
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table.createIndex('value', 'value', { unique: false });
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table.createIndex('value', 'value', { unique: false });
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};
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};
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req.onsuccess = function(ev) {
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req.onsuccess = function(ev) {
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if ( resolve === undefined ) { return; }
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req = undefined;
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req = undefined;
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db = ev.target.result;
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db = ev.target.result;
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db.onerror = db.onabort = genericErrorHandler;
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db.onerror = db.onabort = genericErrorHandler;
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dbPromise = undefined;
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dbPromise = undefined;
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resolve(db);
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resolve(db);
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resolve = undefined;
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};
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};
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req.onerror = req.onblocked = function() {
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req.onerror = req.onblocked = function() {
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if ( resolve === undefined ) { return; }
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req = undefined;
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req = undefined;
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console.log(this.error);
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console.log(this.error);
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db = null;
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db = null;
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dbPromise = undefined;
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dbPromise = undefined;
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resolve(null);
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resolve(null);
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resolve = undefined;
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};
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};
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setTimeout(( ) => {
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if ( resolve === undefined ) { return; }
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db = null;
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dbPromise = undefined;
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resolve(null);
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resolve = undefined;
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}, 5000);
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});
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});
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return dbPromise;
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return dbPromise;
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};
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};
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@ -246,8 +257,8 @@
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const getFromDb = function(keys, keyvalStore, callback) {
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const getFromDb = function(keys, keyvalStore, callback) {
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if ( typeof callback !== 'function' ) { return; }
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if ( typeof callback !== 'function' ) { return; }
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if ( keys.length === 0 ) { return callback(keyvalStore); }
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if ( keys.length === 0 ) { return callback(keyvalStore); }
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let promises = [];
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const promises = [];
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let gotOne = function() {
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const gotOne = function() {
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if ( typeof this.result !== 'object' ) { return; }
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if ( typeof this.result !== 'object' ) { return; }
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keyvalStore[this.result.key] = this.result.value;
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keyvalStore[this.result.key] = this.result.value;
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if ( this.result.value instanceof Blob === false ) { return; }
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if ( this.result.value instanceof Blob === false ) { return; }
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@ -262,7 +273,7 @@
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};
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};
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getDb().then(db => {
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getDb().then(db => {
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if ( !db ) { return callback(); }
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if ( !db ) { return callback(); }
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const transaction = db.transaction(STORAGE_NAME);
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const transaction = db.transaction(STORAGE_NAME, 'readonly');
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transaction.oncomplete =
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transaction.oncomplete =
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transaction.onerror =
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transaction.onerror =
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transaction.onabort = ( ) => {
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transaction.onabort = ( ) => {
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@ -272,11 +283,13 @@
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};
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};
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const table = transaction.objectStore(STORAGE_NAME);
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const table = transaction.objectStore(STORAGE_NAME);
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for ( const key of keys ) {
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for ( const key of keys ) {
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let req = table.get(key);
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const req = table.get(key);
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req.onsuccess = gotOne;
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req.onsuccess = gotOne;
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req.onerror = noopfn;
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req.onerror = noopfn;
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req = undefined;
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}
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}
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}).catch(reason => {
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console.info(`cacheStorage.getFromDb() failed: ${reason}`);
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callback();
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});
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});
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};
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};
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