Add MFA support

app/controllers/auth/Forms.controller.js

@@ -17,6 +17,13 @@ class Forms extends FormController {
             }),
         })
     }
+
+    async logout_provider_present_success(req, res, next) {
+        return this.Vue.auth_message(res, {
+            message: 'You have been successfully logged out.',
+            next_destination: '/',
+        })
+    }
 }
 
 module.exports = exports = Forms

app/controllers/auth/MFA.controller.js

@@ -0,0 +1,44 @@
+const { Controller } = require('libflitter')
+
+class MFAController extends Controller {
+    static get services() {
+        return [...super.services, 'Vue', 'configs']
+    }
+
+    async setup(req, res, next) {
+        if ( req.user.mfa_enabled ) {
+            // Already set up!
+            return this.Vue.auth_message(res, {
+                message: 'It looks like your account is already set up for multi-factor authentication. Unable to continue with MFA setup.',
+                next_destination: '/', // TODO update this
+                button_text: 'Okay',
+            })
+        }
+
+        // Display the token setup page
+        return res.page('auth:mfa:setup', {
+            ...this.Vue.data()
+        })
+    }
+
+    async challenge(req, res, next) {
+        if ( !req.user.mfa_enabled ) {
+            return this.Vue.auth_message(res, {
+                message: 'Your account is not configured to use multi-factor authentication. Would you like to configure it now?',
+                next_destination: '/auth/mfa/setup',
+                button_text: 'Setup MFA',
+            })
+        }
+
+        if ( !req.session.auth.in_dmz ) {
+            return res.redirect(req.session.auth.flow)
+        }
+
+        // Display the MFA challenge page
+        return res.page('auth:mfa:challenge', {
+            ...this.Vue.data()
+        })
+    }
+}
+
+module.exports = exports = MFAController