rentgen/request-cluster.ts

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import { EventEmitter } from 'events';
import ExtendedRequest from './extended-request';
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import { SaferEmitter } from './safer-emitter';
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import { Sources, StolenDataEntry } from './stolen-data-entry';
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import { allSubhosts, isSameURL, reduceConcat, unique } from './util';
const source_priority: Array<Sources> = ['cookie', 'pathname', 'queryparams', 'header'];
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export class RequestCluster extends SaferEmitter {
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public requests: ExtendedRequest[] = [];
public representativeStolenData: StolenDataEntry[] = [];
public expanded: boolean;
constructor(public id: string) {
super();
}
add(request: ExtendedRequest) {
this.requests.push(request);
this.emit('change');
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}
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toggleExpanded(state: boolean) {
this.expanded = state;
this.emit('change');
}
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hasCookies() {
for (const request of this.requests) {
if (request.hasCookie()) {
return true;
}
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}
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return false;
}
hasMarkedCookies() {
return this.getMarkedEntries().some((entry) => entry.source === 'cookie');
}
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calculateRepresentativeStolenData(
filter: {
minValueLength: number;
cookiesOnly: boolean;
cookiesOrOriginOnly: boolean;
} = {
minValueLength: 0,
cookiesOnly: false,
cookiesOrOriginOnly: false,
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}
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): 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() ||
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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));
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return this.representativeStolenData;
}
static sortCompare(a: RequestCluster, b: RequestCluster) {
if (a.hasCookies() == b.hasCookies()) {
if (a.id < b.id) {
return -1;
} else {
return 1;
}
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} else {
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if (a.hasCookies()) {
return -1;
} else {
return 1;
}
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}
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}
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getMarkedRequests() {
return this.requests.filter((request) => request.hasMark());
}
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getFullHosts() {
return unique(
this.requests
.map((request) => allSubhosts(request.getHost()))
.reduce((a, b) => a.concat(b), [])
);
}
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hasMarks() {
return this.requests.some((request) => request.hasMark());
}
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getMarkedEntries(): StolenDataEntry[] {
return this.requests.map((request) => request.getMarkedEntries()).reduce(reduceConcat, []);
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}
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exposesOrigin() {
return this.requests.some((request) => request.exposesOrigin());
}
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autoMark() {
this.calculateRepresentativeStolenData();
this.representativeStolenData.forEach((entry) => {
entry.autoMark();
});
}
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undoMark() {
this.calculateRepresentativeStolenData();
this.representativeStolenData.forEach((entry) => {
entry.unmark();
});
}
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getDataTypeDescription(noun = 'Twojej') {
let types_of_data: string[] = [];
if (this.exposesOrigin()) {
types_of_data.push(`część ${noun} historii przeglądania`);
}
if (this.hasMarkedCookies()) {
types_of_data.push('unikalne ID z cookies');
}
return types_of_data.join(', ');
}
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}