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convert totp service to jslib

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This commit is contained in:
Kyle Spearrin 2018-01-09 17:45:17 -05:00
parent cfbd67060a
commit 79aca025d0
3 changed files with 4 additions and 120 deletions
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5
src/background/main.background.ts
View File

@ -5,6 +5,7 @@ import {
AppIdService,
CryptoService,
TokenService,
TotpService,
UserService,
UtilsService,
} from 'jslib/services';
@ -17,6 +18,7 @@ import {
PlatformUtilsService as PlatformUtilsServiceAbstraction,
StorageService as StorageServiceAbstraction,
TokenService as TokenServiceAbstraction,
TotpService as TotpServiceAbstraction,
UserService as UserServiceAbstraction,
UtilsService as UtilsServiceAbstraction,
} from 'jslib/abstractions';
@ -46,7 +48,6 @@ import LockService from '../services/lock.service';
import PasswordGenerationService from '../services/passwordGeneration.service';
import SettingsService from '../services/settings.service';
import SyncService from '../services/sync.service';
import TotpService from '../services/totp.service';
export default class MainBackground {
messagingService: MessagingServiceAbstraction;
@ -68,7 +69,7 @@ export default class MainBackground {
lockService: LockService;
syncService: SyncService;
passwordGenerationService: PasswordGenerationService;
totpService: TotpService;
totpService: TotpServiceAbstraction;
autofillService: AutofillService;
containerService: ContainerService;

2
src/services/autofill.service.ts
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@ -8,13 +8,13 @@ import AutofillPageDetails from '../models/domain/autofillPageDetails';
import AutofillScript from '../models/domain/autofillScript';
import CipherService from './cipher.service';
import TotpService from './totp.service';
import { UtilsService } from 'jslib/services';
import {
PlatformUtilsService,
TokenService,
TotpService,
UtilsService as UtilsServiceAbstraction,
} from 'jslib/abstractions';

117
src/services/totp.service.ts
View File

@ -1,117 +0,0 @@
import ConstantsService from './constants.service';
import { StorageService } from 'jslib/abstractions';
const b32Chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ234567';
const TotpAlgorithm = {
name: 'HMAC',
hash: { name: 'SHA-1' },
};
export default class TotpService {
constructor(private storageService: StorageService) {
}
async getCode(keyb32: string): Promise<string> {
const epoch = Math.round(new Date().getTime() / 1000.0);
const timeHex = this.leftpad(this.dec2hex(Math.floor(epoch / 30)), 16, '0');
const timeBytes = this.hex2bytes(timeHex);
const keyBytes = this.b32tobytes(keyb32);
if (!keyBytes.length || !timeBytes.length) {
return null;
}
const hashHex = await this.sign(keyBytes, timeBytes);
if (!hashHex) {
return null;
}
const offset = this.hex2dec(hashHex.substring(hashHex.length - 1));
// tslint:disable-next-line
let otp = (this.hex2dec(hashHex.substr(offset * 2, 8)) & this.hex2dec('7fffffff')) + '';
otp = (otp).substr(otp.length - 6, 6);
return otp;
}
async isAutoCopyEnabled(): Promise<boolean> {
return !(await this.storageService.get<boolean>(ConstantsService.disableAutoTotpCopyKey));
}
// Helpers
private leftpad(s: string, l: number, p: string): string {
if (l + 1 >= s.length) {
s = Array(l + 1 - s.length).join(p) + s;
}
return s;
}
private dec2hex(d: number): string {
return (d < 15.5 ? '0' : '') + Math.round(d).toString(16);
}
private hex2dec(s: string): number {
return parseInt(s, 16);
}
private hex2bytes(s: string): Uint8Array {
const bytes = new Uint8Array(s.length / 2);
for (let i = 0; i < s.length; i += 2) {
bytes[i / 2] = parseInt(s.substr(i, 2), 16);
}
return bytes;
}
private buff2hex(buff: ArrayBuffer): string {
const bytes = new Uint8Array(buff);
const hex: string[] = [];
bytes.forEach((b) => {
// tslint:disable-next-line
hex.push((b >>> 4).toString(16));
// tslint:disable-next-line
hex.push((b & 0xF).toString(16));
});
return hex.join('');
}
private b32tohex(s: string): string {
s = s.toUpperCase();
let cleanedInput = '';
for (let i = 0; i < s.length; i++) {
if (b32Chars.indexOf(s[i]) < 0) {
continue;
}
cleanedInput += s[i];
}
s = cleanedInput;
let bits = '';
let hex = '';
for (let i = 0; i < s.length; i++) {
const byteIndex = b32Chars.indexOf(s.charAt(i));
if (byteIndex < 0) {
continue;
}
bits += this.leftpad(byteIndex.toString(2), 5, '0');
}
for (let i = 0; i + 4 <= bits.length; i += 4) {
const chunk = bits.substr(i, 4);
hex = hex + parseInt(chunk, 2).toString(16);
}
return hex;
}
private b32tobytes(s: string): Uint8Array {
return this.hex2bytes(this.b32tohex(s));
}
private async sign(keyBytes: Uint8Array, timeBytes: Uint8Array) {
const key = await window.crypto.subtle.importKey('raw', keyBytes, TotpAlgorithm, false, ['sign']);
const signature = await window.crypto.subtle.sign(TotpAlgorithm, key, timeBytes);
return this.buff2hex(signature);
}
}