feat(mfa): add MFA code input screen for /ro endpoint

We will show MFA screen when mfa is required for an user
and the customer is using the /ro endpoint instead of
popup or redirect mode (push notifications not allowed).

src/connection/database/actions.js

@@ -21,16 +21,33 @@ import  {
 } from './index';
 import * as i18n from '../../i18n';
 
-export function logIn(id) {
+export function logIn(id, needsMFA = false) {
   const m = read(getEntity, "lock", id);
   const usernameField = databaseLogInWithEmail(m) ? "email" : "username";
   const username = c.getFieldValue(m, usernameField);
 
-  coreLogIn(id, [usernameField, "password"], {
+  const params = {
     connection: databaseConnectionName(m),
     username: username,
     password: c.getFieldValue(m, "password")
-  });
+  };
+
+  const fields = [usernameField, "password"];
+
+  const mfaCode = c.getFieldValue(m, "mfa_code");
+  if (needsMFA) {
+    params["mfa_code"] = mfaCode;
+    fields.push("mfa_code");
+  }
+
+  coreLogIn(id, fields, params,
+    (id, error, fields, next) => {
+      if (error.error === "a0.mfa_required") {
+        return showLoginMFAActivity(id);
+      }
+
+      return next();
+    });
 }
 
 export function signUp(id) {
@@ -204,6 +221,14 @@ export function cancelResetPassword(id) {
  return showLoginActivity(id);
 }
 
+export function cancelMFALogin(id) {
+ return showLoginActivity(id);
+}
+
 export function toggleTermsAcceptance(id) {
   swap(updateEntity, "lock", id, switchTermsAcceptance);
 }
+
+export function showLoginMFAActivity(id, fields = ["mfa_code"]) {
+  swap(updateEntity, "lock", id, setScreen, "mfaLogin", fields);
+}

src/connection/database/index.js

@@ -189,6 +189,8 @@ function processScreenOptions(opts, defaults = {allowLogin: true, allowSignUp: t
     screens.push("forgotPassword");
   }
 
+  screens.push("mfaLogin");
+
   if (!assertMaybeEnum(opts, "initialScreen", screens)) {
     initialScreen = undefined;
   }
@@ -251,7 +253,7 @@ export function setScreen(m, name, fields = []) {
 export function getScreen(m) {
   const screen = tget(m, "screen");
   const initialScreen = getInitialScreen(m);
-  const screens = [screen, initialScreen, "login", "signUp", "forgotPassword"];
+  const screens = [screen, initialScreen, "login", "signUp", "forgotPassword", "mfaLogin"];
   const availableScreens = screens.filter(x => hasScreen(m, x));
   return availableScreens[0];
 }

src/connection/database/mfa_pane.jsx

@@ -0,0 +1,37 @@
+import React from 'react';
+import MFACodePane from '../../field/mfa-code/mfa_code_pane';
+
+export default class MFAPane extends React.Component {
+
+  render() {
+    const {
+      mfaInputPlaceholder,
+      i18n,
+      instructions,
+      lock,
+      title
+    } = this.props;
+
+    const headerText = instructions || null;
+    const header = headerText && <p>{headerText}</p>;
+
+    const pane = (<MFACodePane
+        i18n={i18n}
+        lock={lock}
+        placeholder={mfaInputPlaceholder}
+      />);
+
+    const titleElement = title && <h2>{ title }</h2>;
+
+    return (<div>{titleElement}{header}{pane}</div>);
+  }
+
+}
+
+MFAPane.propTypes = {
+  mfaInputPlaceholder: React.PropTypes.string.isRequired,
+  title: React.PropTypes.string.isRequired,
+  i18n: React.PropTypes.object.isRequired,
+  instructions: React.PropTypes.any,
+  lock: React.PropTypes.object.isRequired
+};

src/core/actions.js

@@ -141,19 +141,20 @@ export function validateAndSubmit(id, fields = [], f) {
   }
 }
 
-export function logIn(id, fields, params = {}) {
+export function logIn(id, fields, params = {},
+  logInErrorHandler = (err, next) => next()) {
+
   validateAndSubmit(id, fields, m => {
     webApi.logIn(id, params, l.auth.params(m).toJS(), (error, result) => {
       if (error) {
-        setTimeout(() => logInError(id, fields, error), 250);
+        setTimeout(() => logInError(id, fields, error, logInErrorHandler), 250)
       } else {
         logInSuccess(id, result);
       }
     });
   });
 }
 
-
 export function logInSuccess(id, result) {
   const m = read(getEntity, "lock", id);
 
@@ -168,15 +169,19 @@ export function logInSuccess(id, result) {
   }
 }
 
-function logInError(id, fields, error) {
-  const m = read(getEntity, "lock", id);
-  const errorMessage = l.loginErrorMessage(m, error, loginType(fields));
+function logInError(id, fields, error, localHandler) {
+  localHandler(id, error, fields, () => process.nextTick(() => {
+    const m = read(getEntity, "lock", id);
+    const errorMessage = l.loginErrorMessage(m, error, loginType(fields));
 
-  if (["blocked_user", "rule_error", "lock.unauthorized"].indexOf(error.code) > -1) {
-    l.emitAuthorizationErrorEvent(m, error);
-  }
+    if (["blocked_user", "rule_error", "lock.unauthorized"].indexOf(error.code) > -1) {
+      l.emitAuthorizationErrorEvent(m, error);
+    }
+
+    swap(updateEntity, "lock", id, l.setSubmitting, false, errorMessage);
+  }));
 
-  swap(updateEntity, "lock", id, l.setSubmitting, false, errorMessage);
+  swap(updateEntity, "lock", id, l.setSubmitting, false);
 }
 
 function loginType(fields) {

src/core/index.js

@@ -381,6 +381,14 @@ export function loginErrorMessage(m, error, type) {
     code = INVALID_MAP[type];
   }
 
+  if (code === "a0.mfa_registration_required") {
+    code = "lock.mfa_registration_required";
+  }
+
+  if (code === "a0.mfa_invalid_code") {
+    code = "lock.mfa_invalid_code";
+  }
+
   return i18n.str(m, ["error", "login", code])
     || i18n.str(m, ["error", "login", "lock.fallback"]);
 }

src/engine/classic.js

@@ -1,6 +1,7 @@
 import Base from '../index';
 import Login from './classic/login';
 import SignUp from './classic/sign_up_screen';
+import MFALoginScreen from './classic/mfa_login_screen';
 import ResetPassword from '../connection/database/reset_password';
 import { renderSSOScreens } from '../core/sso/index';
 import {
@@ -92,7 +93,8 @@ class Classic {
   static SCREENS = {
     login: Login,
     forgotPassword: ResetPassword,
-    signUp: SignUp
+    signUp: SignUp,
+    mfaLogin: MFALoginScreen
   };
 
   didInitialize(model, options) {

src/engine/classic/mfa_login_screen.jsx

@@ -0,0 +1,45 @@
+import React from 'react';
+import Screen from '../../core/screen';
+import MFAPane from '../../connection/database/mfa_pane';
+import * as i18n from '../../i18n';
+import { cancelMFALogin, logIn } from '../../connection/database/actions';
+import { hasScreen } from '../../connection/database/index';
+import { renderSignedInConfirmation } from '../../core/signed_in_confirmation';
+
+const Component = ({i18n, model}) => {
+
+  return <MFAPane
+    mfaInputPlaceholder={i18n.str("mfaInputPlaceholder")}
+    i18n={i18n}
+    instructions={i18n.str("mfaLoginInstructions")}
+    lock={model}
+    title={i18n.str("mfaLoginTitle")}
+    />;
+};
+
+export default class MFALoginScreen extends Screen {
+
+  constructor() {
+    super("mfa.mfaCode");
+  }
+
+  renderAuxiliaryPane(lock) {
+    return renderSignedInConfirmation(lock);
+  }
+
+  submitButtonLabel(m) {
+    return i18n.str(m, ["mfaSubmitLabel"]);
+  }
+
+  submitHandler(m) {
+    return (id) => logIn(id, true);
+  }
+
+  render() {
+    return Component;
+  }
+
+  backHandler(m) {
+    return hasScreen(m, "login") ? cancelMFALogin : undefined;
+  }
+}

src/field/index.js

@@ -148,6 +148,12 @@ export function username(m) {
   return getFieldValue(m, "username");
 }
 
+// mfa_code
+
+export function mfaCode(m) {
+  return getFieldValue(m, "mfa_code");
+}
+
 // select field options
 
 export function isSelecting(m) {

src/field/mfa-code/mfa_code_pane.jsx

@@ -0,0 +1,37 @@
+import React from 'react';
+import MFACodeInput from '../../ui/input/mfa_code_input';
+import * as c from '../index';
+import { swap, updateEntity } from '../../store/index';
+import * as l from '../../core/index';
+import { setMFACode, getMFACodeValidation } from '../mfa_code';
+
+export default class MFACodePane extends React.Component {
+
+  handleChange(e) {
+    const { lock } = this.props;
+    swap(updateEntity, "lock", l.id(lock), setMFACode, e.target.value);
+  }
+
+  render() {
+    const { i18n, lock, placeholder } = this.props;
+
+    return (
+      <MFACodeInput
+        value={c.getFieldValue(lock, "mfa_code")}
+        invalidHint={i18n.str("mfaCodeErrorHint", getMFACodeValidation().length)}
+        isValid={!c.isFieldVisiblyInvalid(lock, "mfa_code")}
+        onChange={::this.handleChange}
+        placeholder={placeholder}
+        disabled={l.submitting(lock)}
+      />
+    );
+  }
+
+}
+
+MFACodePane.propTypes = {
+  i18n: React.PropTypes.object.isRequired,
+  lock: React.PropTypes.object.isRequired,
+  onChange: React.PropTypes.func,
+  placeholder: React.PropTypes.string.isRequired
+};

src/field/mfa_code.js

@@ -0,0 +1,34 @@
+import { setField } from './index';
+import { validateEmail } from './email';
+import { databaseConnection } from '../connection/database';
+import trim from 'trim';
+
+
+const DEFAULT_VALIDATION = { mfa_code: { length: 6 } };
+const regExp = /^[0-9]+$/;
+
+function validateMFACode(str, settings = DEFAULT_VALIDATION.mfa_code) {
+  const value = trim(str);
+
+  // check min value matched
+  if (value.length < settings.length) {
+    return false;
+  }
+
+  // check max value matched
+  if (value.length > settings.length) {
+    return false;
+  }
+
+  // check allowed characters matched
+  const result = regExp.exec(value);
+  return result && result[0];
+}
+
+export function setMFACode(m, str) {
+  return setField(m, "mfa_code", str, validateMFACode);
+}
+
+export function getMFACodeValidation(m) {
+  return DEFAULT_VALIDATION.mfa_code;
+}

src/i18n/en.js

@@ -14,6 +14,8 @@ export default {
       "lock.network": "We could not reach the server. Please check your connection and try again.",
       "lock.popup_closed": "Popup window closed. Try again.",
       "lock.unauthorized": "Permissions were not granted. Try again.",
+      "lock.mfa_registration_required": "Multifactor authentication is required but your device is not enrolled. Please enroll it before moving on.",
+      "lock.mfa_invalid_code": "Wrong code. Please try again.",
       "password_change_required": "You need to update your password because this is the first time you are logging in, or because your password has expired.", // TODO: verify error code
       "password_leaked": "This login has been blocked because your password has been leaked in another website. We’ve sent you an email with instructions on how to unblock it.",
       "too_many_attempts": "Your account has been blocked after multiple consecutive login attempts."
@@ -98,5 +100,10 @@ export default {
   title: "Auth0",
   welcome: "Welcome %s!",
   windowsAuthInstructions: "You are connected from your corporate network…",
-  windowsAuthLabel: "Windows Authentication"
+  windowsAuthLabel: "Windows Authentication",
+  mfaInputPlaceholder: "Code",
+  mfaLoginTitle: "2-Step Verification",
+  mfaLoginInstructions: "Please enter the verification code generated by your mobile application.",
+  mfaSubmitLabel: "Log In",
+  mfaCodeErrorHint: "Use %d numbers"
 };

src/i18n/es.js

@@ -16,7 +16,9 @@ export default {
       "lock.unauthorized": "Acceso denegado. Por favor, intente nuevamente.",
       "password_change_required": "Debe actualizar su contraseña porque es la primera vez que ingresa o porque la contraseña está vencida.",
       "password_leaked": "Este intento ha sido bloqueado ya que usted utilizó la misma contraseña para registrarse en otra aplicación que tuvo una filtración reciente. Hemos enviado un email con las instrucciones.",
-      "too_many_attempts": "Su cuenta ha sido bloqueada luego de múltiples intentos de inicio de sesión consecutivos."
+      "too_many_attempts": "Su cuenta ha sido bloqueada luego de múltiples intentos de inicio de sesión consecutivos.",
+      "lock.mfa_registration_required": "Por favor enrole su dispositivo antes de continuar con el segundo factor.",
+      "lock.mfa_invalid_code": "Código incorrecto. Por favor vuelva a intentarlo.",
     },
     passwordless: {
       "bad.email": "Correo inválido",
@@ -98,5 +100,10 @@ export default {
   title: "Auth0",
   welcome: "Bienvenido %s!",
   windowsAuthInstructions: "Usted se encuentra conectado desde su red corporativa…",
-  windowsAuthLabel: "Autenticación de Windows"
+  windowsAuthLabel: "Autenticación de Windows",
+  mfaInputPlaceholder: "Código",
+  mfaLoginTitle: "Segundo Factor",
+  mfaLoginInstructions: "Por favor ingrese el código de verificación generado por su aplicación móvil.",
+  mfaSubmitLabel: "Enviar",
+  mfaCodeErrorHint: "%d números"
 };