2018-02-28 21:15:10 +01:00
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import { AuditService as AuditServiceAbstraction } from '../abstractions/audit.service';
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2018-04-22 05:55:21 +02:00
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import { CryptoFunctionService } from '../abstractions/cryptoFunction.service';
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import { Utils } from '../misc/utils';
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2018-02-28 16:52:35 +01:00
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const PwnedPasswordsApi = 'https://api.pwnedpasswords.com/range/';
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2018-02-28 21:15:10 +01:00
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export class AuditService implements AuditServiceAbstraction {
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2018-04-22 05:55:21 +02:00
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constructor(private cryptoFunctionService: CryptoFunctionService) { }
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2018-02-28 16:52:35 +01:00
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async passwordLeaked(password: string): Promise<number> {
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2018-04-22 05:55:21 +02:00
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const hashBytes = await this.cryptoFunctionService.hash(password, 'sha1');
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const hash = Utils.fromBufferToHex(hashBytes).toUpperCase();
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2018-02-28 16:58:34 +01:00
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const hashStart = hash.substr(0, 5);
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const hashEnding = hash.substr(5);
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2018-02-28 16:52:35 +01:00
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2018-02-28 16:58:34 +01:00
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const response = await fetch(PwnedPasswordsApi + hashStart);
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2018-02-28 16:52:35 +01:00
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const leakedHashes = await response.text();
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2018-02-28 16:58:34 +01:00
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const match = leakedHashes.split(/\r?\n/).find((v) => {
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return v.split(':')[0] === hashEnding;
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});
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2018-02-28 16:52:35 +01:00
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2018-02-28 16:58:34 +01:00
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return match != null ? parseInt(match.split(':')[1], 10) : 0;
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2018-02-28 16:52:35 +01:00
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}
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}
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