Check TOTP token with window of 1

A window of 1 means the token is checked against current time slot T
as well as at time slot T-1 and T+1.
A time slot is 30 seconds by default in Authelia.

package.json

@@ -71,7 +71,6 @@
     "@types/request-promise": "^4.1.38",
     "@types/selenium-webdriver": "^3.0.4",
     "@types/sinon": "^2.2.1",
-    "@types/speakeasy": "^2.0.1",
     "@types/tmp": "0.0.33",
     "@types/winston": "^2.3.2",
     "@types/yamljs": "^0.2.30",

server/src/lib/TOTPGenerator.ts

@@ -1,16 +1,24 @@
 
-import * as speakeasy from "speakeasy";
-import { Speakeasy } from "../../types/Dependencies";
+import Speakeasy = require("speakeasy");
 import BluebirdPromise = require("bluebird");
+import { TOTPSecret } from "../../types/TOTPSecret";
+
+interface GenerateSecretOptions {
+  length?: number;
+  symbols?: boolean;
+  otpauth_url?: boolean;
+  name?: string;
+  issuer?: string;
+}
 
 export class TOTPGenerator {
-  private speakeasy: Speakeasy;
+  private speakeasy: typeof Speakeasy;
 
-  constructor(speakeasy: Speakeasy) {
+  constructor(speakeasy: typeof Speakeasy) {
     this.speakeasy = speakeasy;
   }
 
-  generate(options?: speakeasy.GenerateOptions): speakeasy.Key {
+  generate(options?: GenerateSecretOptions): TOTPSecret {
     return this.speakeasy.generateSecret(options);
   }
 }

server/src/lib/TOTPValidator.ts

@@ -1,23 +1,27 @@
-
-import { Speakeasy } from "../../types/Dependencies";
+import Speakeasy = require("speakeasy");
 import BluebirdPromise = require("bluebird");
 
 const TOTP_ENCODING = "base32";
+const WINDOW: number = 1;
 
 export class TOTPValidator {
-  private speakeasy: Speakeasy;
+  private speakeasy: typeof Speakeasy;
 
-  constructor(speakeasy: Speakeasy) {
+  constructor(speakeasy: typeof Speakeasy) {
     this.speakeasy = speakeasy;
   }
 
   validate(token: string, secret: string): BluebirdPromise<void> {
-    const real_token = this.speakeasy.totp({
+    const isValid = this.speakeasy.totp.verify({
       secret: secret,
-      encoding: TOTP_ENCODING
-    });
+      encoding: TOTP_ENCODING,
+      token: token,
+      window: WINDOW
+    } as any);
 
-    if (token == real_token) return BluebirdPromise.resolve();
-    return BluebirdPromise.reject(new Error("Wrong challenge"));
+    if (isValid)
+      return BluebirdPromise.resolve();
+    else
+      return BluebirdPromise.reject(new Error("Wrong TOTP token."));
   }
 }

server/test/TOTPValidator.test.ts

@@ -1,26 +1,37 @@
 
 import { TOTPValidator } from "../src/lib/TOTPValidator";
-import sinon = require("sinon");
-import Promise = require("bluebird");
-import SpeakeasyMock = require("./mocks/speakeasy");
+import Sinon = require("sinon");
+import Speakeasy = require("speakeasy");
 
 describe("test TOTP validation", function() {
   let totpValidator: TOTPValidator;
+  let totpValidateStub: Sinon.SinonStub;
 
   beforeEach(() => {
-    SpeakeasyMock.totp.returns("token");
-    totpValidator = new TOTPValidator(SpeakeasyMock as any);
+    totpValidateStub = Sinon.stub(Speakeasy.totp, "verify");
+    totpValidator = new TOTPValidator(Speakeasy);
+  });
+
+  afterEach(function() {
+    totpValidateStub.restore();
   });
 
   it("should validate the TOTP token", function() {
     const totp_secret = "NBD2ZV64R9UV1O7K";
     const token = "token";
+    totpValidateStub.withArgs({
+      secret: totp_secret,
+      token: token,
+      encoding: "base32",
+      window: 1
+    }).returns(true);
     return totpValidator.validate(token, totp_secret);
   });
 
   it("should not validate a wrong TOTP token", function(done) {
     const totp_secret = "NBD2ZV64R9UV1O7K";
     const token = "wrong token";
+    totpValidateStub.returns(false);
     totpValidator.validate(token, totp_secret)
     .catch(function() {
       done();

server/test/storage/UserDataStore.test.ts

@@ -29,7 +29,12 @@ describe("test user data store", function () {
     totpSecret = {
       ascii: "abc",
       base32: "ABCDKZLEFZGREJK",
-      otpauth_url: "totp://test"
+      otpauth_url: "totp://test",
+      google_auth_qr: "dummy",
+      hex: "dummy",
+      qr_code_ascii: "dummy",
+      qr_code_base32: "dummy",
+      qr_code_hex: "dummy"
     };
 
     u2fRegistration = {

server/types/TOTPSecret.ts

@@ -1,6 +1,11 @@
 
 export interface TOTPSecret {
-    base32: string;
     ascii: string;
-    otpauth_url?: string;
+    hex: string;
+    base32: string;
+    qr_code_ascii: string;
+    qr_code_hex: string;
+    qr_code_base32: string;
+    google_auth_qr: string;
+    otpauth_url: string;
   }

server/types/speakeasy.d.ts

@@ -0,0 +1,96 @@
+declare module "speakeasy" {
+  export = speakeasy
+
+  interface SharedOptions {
+    encoding?: string
+    algorithm?: string
+  }
+
+  interface DigestOptions extends SharedOptions {
+    secret: string
+    counter: number
+  }
+
+  interface HOTPOptions extends SharedOptions {
+    secret: string
+    counter: number
+    digest?: Buffer
+    digits?: number
+  }
+
+  interface HOTPVerifyOptions extends SharedOptions {
+    secret: string
+    token: string
+    counter: number
+    digits?: number
+    window?: number
+  }
+
+  interface TOTPOptions extends SharedOptions {
+    secret: string
+    time?: number
+    step?: number
+    epoch?: number
+    counter?: number
+    digits?: number
+  }
+
+  interface TOTPVerifyOptions extends SharedOptions {
+    secret: string
+    token: string
+    time?: number
+    step?: number
+    epoch?: number
+    counter?: number
+    digits?: number
+    window?: number
+  }
+
+  interface GenerateSecretOptions {
+    length?: number
+    symbols?: boolean
+    otpauth_url?: boolean
+    name?: string
+    issuer?: string
+  }
+
+  interface GeneratedSecret {
+    ascii: string
+    hex: string
+    base32: string
+    qr_code_ascii: string
+    qr_code_hex: string
+    qr_code_base32: string
+    google_auth_qr: string
+    otpauth_url: string
+  }
+
+  interface OTPAuthURLOptions extends SharedOptions {
+    secret: string
+    label: string
+    type?: string
+    counter?: number
+    issuer?: string
+    digits?: number
+    period?: number
+  }
+
+  interface Speakeasy {
+    digest: (options: DigestOptions) => Buffer
+    hotp: {
+      (options: HOTPOptions): string,
+      verifyDelta: (options: HOTPVerifyOptions) => boolean,
+      verify: (options: HOTPVerifyOptions) => boolean,
+    }
+    totp: {
+      (options: TOTPOptions): string
+      verifyDelta: (options: TOTPVerifyOptions) => boolean,
+      verify: (options: TOTPVerifyOptions) => boolean,
+    }
+    generateSecret: (options?: GenerateSecretOptions) => GeneratedSecret
+    generateSecretASCII: (length?: number, symbols?: boolean) => string
+    otpauthURL: (options: OTPAuthURLOptions) => string
+  }
+
+  const speakeasy: Speakeasy
+}

test/features/support/world.ts

@@ -21,6 +21,7 @@ function CustomWorld() {
   };
 
   this.setFieldTo = function (fieldName: string, content: string) {
+    const that = this;
     return this.driver.findElement(seleniumWebdriver.By.id(fieldName))
       .sendKeys(content);
   };
@@ -49,9 +50,6 @@ function CustomWorld() {
           .findElement(seleniumWebdriver.By.tagName("button"))
           .findElement(seleniumWebdriver.By.xpath("//button[contains(.,'" + buttonText + "')]"))
           .click();
-      })
-      .then(function () {
-        return that.driver.sleep(1000);
       });
   };