import { EventEmitter } from "events"; import ExtendedRequest from "./extended-request"; import { Sources, StolenDataEntry } from "./stolen-data-entry"; import { allSubhosts, isSameURL, reduceConcat, unique } from "./util"; const source_priority: Array = [ "cookie", "pathname", "queryparams", "header", ]; export class RequestCluster extends EventEmitter { public requests: ExtendedRequest[] = []; public representativeStolenData: StolenDataEntry[] = []; constructor(public id: string) { super(); } add(request: ExtendedRequest) { this.requests.push(request); this.emit("change"); } hasCookies() { for (const request of this.requests) { if (request.hasCookie()) { return true; } } return false; } calculatetRepresentativeStolenData( filter: { minValueLength: number; cookiesOnly: boolean; cookiesOrOriginOnly: boolean; } = { minValueLength: 0, cookiesOnly: false, cookiesOrOriginOnly: false } ): StolenDataEntry[] { this.representativeStolenData = this.requests .map((request) => request.stolenData) .reduce((a, b) => a.concat(b), []) .filter((entry) => { return entry.value.length >= filter.minValueLength; }) .filter((entry) => !filter.cookiesOnly || entry.source === "cookie") .filter( (entry) => !filter.cookiesOrOriginOnly || entry.source === "cookie" || entry.classification === "history" ) .sort((entry1, entry2) => { if (entry1.value > entry2.value) { return -1; } else if (entry1.value < entry2.value) { return 1; } else { const indexA = source_priority.indexOf(entry1.source); const indexB = source_priority.indexOf(entry2.source); if (indexA < indexB) { return -1; } else if (indexA > indexB) { return 1; } else if (entry1.value.length > entry2.value.length) { return -1; } else if (entry1.value.length < entry2.value.length) { return 1; } else if (entry1.isMarked && !entry2.isMarked) { return -1; } else if (!entry1.isMarked && entry2.isMarked) { return 1; } else { return 0; } } }) .filter((_, index, array) => { // removing value duplicates if (index == 0) { return true; } if ( array[index].getValuePreview() === array[index - 1].getValuePreview() || isSameURL(array[index].value, array[index - 1].value) ) { return false; } else { return true; } }) .sort((entry1, entry2) => { if (entry1.name < entry2.name) { return -1; } else if (entry1.name > entry2.name) { return 1; } else { if (entry1.value.length > entry2.value.length) { return 1; } else { return -1; } } }) .filter((_, index, array) => { // removing name duplicates, keeping only the first - which is the longest. Some data loss may occur. if (index == 0) { return true; } if (array[index].name === array[index - 1].name) { return false; } else { return true; } }) .sort((entry1, entry2) => entry1.getPriority() > entry2.getPriority() ? -1 : 1 ); return this.representativeStolenData; } static sortCompare(a: RequestCluster, b: RequestCluster) { if (a.hasCookies() == b.hasCookies()) { if (a.id < b.id) { return -1; } else { return 1; } } else { if (a.hasCookies()) { return -1; } else { return 1; } } } getMarkedRequests() { return this.requests.filter((request) => request.hasMark()); } getFullHosts() { return unique( this.requests .map((request) => allSubhosts(request.getHost())) .reduce((a, b) => a.concat(b), []) ); } hasMarks() { return this.requests.some((request) => request.hasMark()); } getMarkedEntries(): StolenDataEntry[] { return this.requests .map((request) => request.getMarkedEntries()) .reduce(reduceConcat, []); } exposesOrigin() { return this.requests.some((request) => request.exposesOrigin()); } autoMark() { this.calculatetRepresentativeStolenData(); this.representativeStolenData.forEach((entry) => { entry.autoMark(); }); } }