807: Authentication for UI in production mode (#851)

* Reinstate auth stack in CDK app, but without Azure as IdP
* Add login to UI in prod mode only
* Add authentication header to UI requests in prod mode only

cloud/bin/cloud.ts

@@ -8,6 +8,7 @@ import {
 	resourceDescription,
 	stackName,
 	ApiStack,
+	AuthStack,
 	UiStack,
 } from '../lib';
 
@@ -23,7 +24,6 @@ const tags = {
 	classification: 'unrestricted',
 	'environment-type': environmentName(app),
 	'keep-alive': '8-6-without-weekends',
-	IaC: 'CDK',
 };
 
 const generateStackName = stackName(app);
@@ -35,15 +35,12 @@ const uiStack = new UiStack(app, generateStackName('ui'), {
 	tags,
 });
 
-// Don't need this stack yet.
-/*
-const authStack = new AuthStack(app, generateStackName('auth'), {
+/*const authStack = */ new AuthStack(app, generateStackName('auth'), {
 	description: generateDescription('Auth stack'),
 	env,
 	tags,
 	webappUrl: uiStack.cloudfrontUrl,
 });
-*/
 
 new ApiStack(app, generateStackName('api'), {
 	description: generateDescription('API stack'),

cloud/cdk.context.json

@@ -1,7 +1,7 @@
 {
-	"availability-zones:account=600982866784:region=eu-west-1": [
-		"eu-west-1a",
-		"eu-west-1b",
-		"eu-west-1c"
+	"availability-zones:account=992382568770:region=eu-north-1": [
+		"eu-north-1a",
+		"eu-north-1b",
+		"eu-north-1c"
 	]
 }

cloud/lib/auth-stack.ts

@@ -1,15 +1,19 @@
 import {
+	AdvancedSecurityMode,
 	Mfa,
 	OAuthScope,
-	ProviderAttribute,
 	UserPool,
 	UserPoolClient,
-	UserPoolClientIdentityProvider,
 	UserPoolDomain,
-	UserPoolIdentityProviderSaml,
-	UserPoolIdentityProviderSamlMetadata,
 } from 'aws-cdk-lib/aws-cognito';
-import { CfnOutput, Duration, Stack, StackProps, Tags } from 'aws-cdk-lib/core';
+import {
+	CfnOutput,
+	Duration,
+	RemovalPolicy,
+	Stack,
+	StackProps,
+	Tags,
+} from 'aws-cdk-lib/core';
 import { Construct } from 'constructs';
 
 import { resourceName } from './resourceNamingUtils';
@@ -26,14 +30,6 @@ export class AuthStack extends Stack {
 	constructor(scope: Construct, id: string, props: AuthStackProps) {
 		super(scope, id, props);
 
-		const azureTenantId = process.env.AZURE_TENANT_ID;
-		const azureApplicationId = process.env.AZURE_APPLICATION_ID;
-		if (!azureTenantId || !azureApplicationId) {
-			throw new Error(
-				'Need AZURE_TENANT_ID and AZURE_APPLICATION_ID environment vars!'
-			);
-		}
-
 		const generateResourceName = resourceName(scope);
 
 		// Cognito UserPool
@@ -42,7 +38,6 @@ export class AuthStack extends Stack {
 			userPoolName,
 			enableSmsRole: false,
 			mfa: Mfa.OFF,
-			//email // not configured, we're not going to send email from here
 			signInCaseSensitive: false,
 			autoVerify: { email: false }, // will be sending email invite anyway
 			selfSignUpEnabled: false, // only users we explicity allow
@@ -52,7 +47,16 @@ export class AuthStack extends Stack {
 				email: { required: true },
 			},
 			signInAliases: { email: true },
+			advancedSecurityMode: AdvancedSecurityMode.AUDIT,
+			passwordPolicy: {
+				minLength: 16,
+				requireSymbols: false,
+				requireLowercase: true,
+				requireUppercase: true,
+				requireDigits: true,
+			},
 			deletionProtection: false,
+			removalPolicy: RemovalPolicy.DESTROY,
 		});
 		// Tags not correctly assigned from parent stack: https://github.com/aws/aws-cdk/issues/14127
 		Object.entries(props.tags ?? {}).forEach(([key, value]) => {
@@ -62,30 +66,6 @@ export class AuthStack extends Stack {
 		new CfnOutput(this, 'UserPool.Identifier', {
 			value: `urn:amazon:cognito:sp:${this.userPool.userPoolId}`,
 		});
-		new CfnOutput(this, 'UserPool.ReplyUrl', {
-			value: `https://${userPoolName}.auth.${this.region}.amazoncognito.com/saml2/idpresponse`,
-		});
-
-		const idpName = generateResourceName('userpool-idp');
-		const identityProvider = new UserPoolIdentityProviderSaml(this, idpName, {
-			name: idpName,
-			idpSignout: true,
-			metadata: UserPoolIdentityProviderSamlMetadata.url(
-				`https://login.microsoftonline.com/${azureTenantId}/federationmetadata/2007-06/federationmetadata.xml?appid=${azureApplicationId}`
-			),
-			userPool: this.userPool,
-			attributeMapping: {
-				email: ProviderAttribute.other(
-					'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name'
-				),
-				familyName: ProviderAttribute.other(
-					'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname'
-				),
-				givenName: ProviderAttribute.other(
-					'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname'
-				),
-			},
-		});
 
 		const callbackUrls = [`${props.webappUrl}/`];
 		const userPoolClientName = generateResourceName('userpool-client');
@@ -94,10 +74,6 @@ export class AuthStack extends Stack {
 			authFlows: {
 				userSrp: true,
 			},
-			supportedIdentityProviders: [
-				UserPoolClientIdentityProvider.custom(identityProvider.providerName),
-			],
-			generateSecret: true,
 			oAuth: {
 				flows: {
 					authorizationCodeGrant: true,
@@ -108,8 +84,7 @@ export class AuthStack extends Stack {
 			},
 			accessTokenValidity: Duration.minutes(60),
 			idTokenValidity: Duration.minutes(60),
-			refreshTokenValidity: Duration.days(30),
-			authSessionValidity: Duration.minutes(3),
+			refreshTokenValidity: Duration.days(14),
 			enableTokenRevocation: true,
 			preventUserExistenceErrors: true,
 		});

frontend/.env.example

@@ -1 +1,2 @@
 VITE_BACKEND_URL=http://localhost:3001/
+VITE_COGNITO_REDIRECT_URL=http://localhost:4173/

frontend/.stylelintrc.cjs

@@ -1,4 +1,7 @@
 module.exports = {
 	extends: ['stylelint-config-standard', 'stylelint-config-hudochenkov/order'],
 	ignoreFiles: ['node_modules/**/*', 'dist/**/*'],
+	rules: {
+		'selector-class-pattern': null,
+	},
 };