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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,213 @@ | ||
| /*! | ||
| * Copyright (c) 2017-present Ghostery GmbH. All rights reserved. | ||
| * | ||
| * This Source Code Form is subject to the terms of the Mozilla Public | ||
| * License, v. 2.0. If a copy of the MPL was not distributed with this | ||
| * file, You can obtain one at https://mozilla.org/MPL/2.0/. | ||
| */ | ||
| import Config from '../../config.js'; | ||
| import { StaticDataView } from '../../data-view.js'; | ||
| import NetworkFilter from '../../filters/network.js'; | ||
| import CosmeticFilter from '../../filters/cosmetic.js'; | ||
| import Request from '../../request.js'; | ||
| import { noopOptimizeNetwork, optimizeNetwork, noopOptimizeCosmetic } from '../optimizer.js'; | ||
| import ReverseIndex from '../reverse-index.js'; | ||
| import { createLookupTokens } from './cosmetic.js'; | ||
|
|
||
| export default class HTMLBucket { | ||
| public static deserialize(buffer: StaticDataView, config: Config): HTMLBucket { | ||
| const bucket = new HTMLBucket({ config }); | ||
|
|
||
| bucket.networkIndex = ReverseIndex.deserialize( | ||
| buffer, | ||
| NetworkFilter.deserialize, | ||
| config.enableOptimizations ? optimizeNetwork : noopOptimizeNetwork, | ||
| config, | ||
| ); | ||
|
|
||
| bucket.exceptionsIndex = ReverseIndex.deserialize( | ||
| buffer, | ||
| NetworkFilter.deserialize, | ||
| config.enableOptimizations ? optimizeNetwork : noopOptimizeNetwork, | ||
| config, | ||
| ); | ||
|
|
||
| bucket.cosmeticIndex = ReverseIndex.deserialize( | ||
| buffer, | ||
| CosmeticFilter.deserialize, | ||
| noopOptimizeCosmetic, | ||
| config, | ||
| ); | ||
|
|
||
| bucket.unhideIndex = ReverseIndex.deserialize( | ||
| buffer, | ||
| CosmeticFilter.deserialize, | ||
| noopOptimizeCosmetic, | ||
| config, | ||
| ); | ||
|
|
||
| return bucket; | ||
| } | ||
|
|
||
| public networkIndex: ReverseIndex<NetworkFilter>; | ||
| public exceptionsIndex: ReverseIndex<NetworkFilter>; | ||
| public cosmeticIndex: ReverseIndex<CosmeticFilter>; | ||
| public unhideIndex: ReverseIndex<CosmeticFilter>; | ||
|
|
||
| constructor({ | ||
| filters = [], | ||
| config, | ||
| }: { | ||
| filters?: (CosmeticFilter | NetworkFilter)[]; | ||
| config: Config; | ||
| }) { | ||
| this.networkIndex = new ReverseIndex({ | ||
| config, | ||
| deserialize: NetworkFilter.deserialize, | ||
| filters: [], | ||
| optimize: config.enableOptimizations ? optimizeNetwork : noopOptimizeNetwork, | ||
| }); | ||
|
|
||
| this.exceptionsIndex = new ReverseIndex({ | ||
| config, | ||
| deserialize: NetworkFilter.deserialize, | ||
| filters: [], | ||
| optimize: config.enableOptimizations ? optimizeNetwork : noopOptimizeNetwork, | ||
| }); | ||
|
|
||
| this.cosmeticIndex = new ReverseIndex({ | ||
| config, | ||
| deserialize: CosmeticFilter.deserialize, | ||
| filters: [], | ||
| optimize: noopOptimizeCosmetic, | ||
| }); | ||
|
|
||
| this.unhideIndex = new ReverseIndex({ | ||
| config, | ||
| deserialize: CosmeticFilter.deserialize, | ||
| filters: [], | ||
| optimize: noopOptimizeCosmetic, | ||
| }); | ||
|
|
||
| if (filters.length !== 0) { | ||
| this.update(filters, undefined); | ||
| } | ||
| } | ||
|
|
||
| public update( | ||
| newFilters: (NetworkFilter | CosmeticFilter)[], | ||
| removedFilters: Set<number> | undefined, | ||
| ): void { | ||
| const networkFilters: NetworkFilter[] = []; | ||
| const exceptionFilters: NetworkFilter[] = []; | ||
| const cosmeticFilters: CosmeticFilter[] = []; | ||
| const unhideFilters: CosmeticFilter[] = []; | ||
|
|
||
| for (const filter of newFilters) { | ||
| if (filter.isNetworkFilter()) { | ||
| const networkFilter = filter as NetworkFilter; | ||
| if (networkFilter.isException()) { | ||
| exceptionFilters.push(networkFilter); | ||
| } else { | ||
| networkFilters.push(networkFilter); | ||
| } | ||
| } else if (filter.isCosmeticFilter()) { | ||
| const cosmeticFilter = filter as CosmeticFilter; | ||
| if (cosmeticFilter.isUnhide()) { | ||
| unhideFilters.push(cosmeticFilter); | ||
| } else { | ||
| cosmeticFilters.push(cosmeticFilter); | ||
| } | ||
| } | ||
| } | ||
|
|
||
| this.networkIndex.update(networkFilters, removedFilters); | ||
| this.exceptionsIndex.update(exceptionFilters, removedFilters); | ||
| this.cosmeticIndex.update(cosmeticFilters, removedFilters); | ||
| this.unhideIndex.update(unhideFilters, removedFilters); | ||
| } | ||
|
|
||
| public serialize(buffer: StaticDataView): void { | ||
| this.networkIndex.serialize(buffer); | ||
| this.exceptionsIndex.serialize(buffer); | ||
| this.cosmeticIndex.serialize(buffer); | ||
| this.unhideIndex.serialize(buffer); | ||
| } | ||
|
|
||
| public getSerializedSize(): number { | ||
| return ( | ||
| this.networkIndex.getSerializedSize() + | ||
| this.exceptionsIndex.getSerializedSize() + | ||
| this.cosmeticIndex.getSerializedSize() + | ||
| this.unhideIndex.getSerializedSize() | ||
| ); | ||
| } | ||
|
|
||
| public getHTMLFilters( | ||
| request: Request, | ||
| isFilterExcluded?: (filter: NetworkFilter | CosmeticFilter) => boolean, | ||
| ): { | ||
| networkFilters: NetworkFilter[]; | ||
| cosmeticFilters: CosmeticFilter[]; | ||
| exceptions: NetworkFilter[]; | ||
| unhides: CosmeticFilter[]; | ||
| } { | ||
| const networkFilters: NetworkFilter[] = []; | ||
| const cosmeticFilters: CosmeticFilter[] = []; | ||
| const exceptions: NetworkFilter[] = []; | ||
| const unhides: CosmeticFilter[] = []; | ||
|
|
||
| this.networkIndex.iterMatchingFilters(request.getTokens(), (filter: NetworkFilter) => { | ||
| if (filter.match(request) && !isFilterExcluded?.(filter)) { | ||
| networkFilters.push(filter); | ||
| } | ||
| return true; | ||
| }); | ||
|
|
||
| this.exceptionsIndex.iterMatchingFilters(request.getTokens(), (filter: NetworkFilter) => { | ||
| if (filter.match(request) && !isFilterExcluded?.(filter)) { | ||
| exceptions.push(filter); | ||
| } | ||
| return true; | ||
| }); | ||
|
|
||
| if (request.isMainFrame()) { | ||
| const { hostname, domain = '' } = request; | ||
| const hostnameTokens = createLookupTokens(hostname, domain); | ||
| this.cosmeticIndex.iterMatchingFilters(hostnameTokens, (filter: CosmeticFilter) => { | ||
| if (filter.match(hostname, domain) && !isFilterExcluded?.(filter)) { | ||
| cosmeticFilters.push(filter); | ||
| } | ||
| return true; | ||
| }); | ||
|
|
||
| // If we found at least one candidate, check if we have unhidden rules. | ||
| if (cosmeticFilters.length !== 0) { | ||
| this.unhideIndex.iterMatchingFilters(hostnameTokens, (rule: CosmeticFilter) => { | ||
| if (rule.match(hostname, domain) && !isFilterExcluded?.(rule)) { | ||
| unhides.push(rule); | ||
| } | ||
|
|
||
| return true; | ||
| }); | ||
| } | ||
| } | ||
|
|
||
| return { | ||
| networkFilters, | ||
| cosmeticFilters, | ||
| unhides, | ||
| exceptions, | ||
| }; | ||
| } | ||
|
|
||
| public getFilters(): (NetworkFilter | CosmeticFilter)[] { | ||
| const filters: (NetworkFilter | CosmeticFilter)[] = []; | ||
| return filters.concat( | ||
| this.networkIndex.getFilters(), | ||
| this.exceptionsIndex.getFilters(), | ||
| this.cosmeticIndex.getFilters(), | ||
| this.unhideIndex.getFilters(), | ||
| ); | ||
| } | ||
| } |
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