Adds a hasRole() and isAuthenticated() to determine the role membersh…

…ip or if the request is authenticated (#3006)

* Move parseJWT

* Adds isAuthenticated and hasRole to auth.js

* Moves parseJWT from api into api/auth

* Reformat auth.js template

* Update role and auth check logic

* Use roles instead of role

* Use roles

* Default auth ts uses roles

* Update auth templates to use roles instead of role

* Updates templates for other providers

* Updates dbauth auth template

* Simplify hasRole logic

* Update packages/cli/src/commands/setup/auth/templates/auth.js.template

Co-authored-by: Tobbe Lundberg <tobbe@tlundberg.com>

* Update packages/cli/src/commands/setup/auth/templates/auth.js.template

Co-authored-by: Tobbe Lundberg <tobbe@tlundberg.com>

* Clarify hasRole return value if no roles provided

Co-authored-by: Tobbe Lundberg <tobbe@tlundberg.com>

packages/api/src/auth/index.ts

@@ -1,3 +1,5 @@
+export * from './parseJWT'
+
 import type { APIGatewayProxyEvent, Context as LambdaContext } from 'aws-lambda'
 
 import type { SupportedAuthTypes } from '@redwoodjs/auth'

packages/api/src/functions/parseJWT.test.ts → packages/api/src/auth/parseJWT.test.ts

@@ -1,4 +1,4 @@
-import { parseJWT } from '../parseJWT'
+import { parseJWT } from './parseJWT'
 
 const JWT_CLAIMS = {
   iss: 'https://app.us.auth0.com/',
@@ -40,22 +40,22 @@ const JWT_WITH_ROLES_CLAIM = {
 
 describe('parseJWT', () => {
   describe('handle empty token cases', () => {
-    test('it handles null token and returns empty appMetdata and roles', () => {
+    test('it handles null token and returns empty appMetadata and roles', () => {
       const token = { decoded: null, namespace: null }
       expect(parseJWT(token)).toEqual({ appMetadata: {}, roles: [] })
     })
 
-    test('it handles an undefined token and returns empty appMetdata and roles', () => {
+    test('it handles an undefined token and returns empty appMetadata and roles', () => {
       const token = { decoded: undefined, namespace: undefined }
       expect(parseJWT(token)).toEqual({ appMetadata: {}, roles: [] })
     })
 
-    test('it handles an undefined decoded token and returns empty appMetdata and roles', () => {
+    test('it handles an undefined decoded token and returns empty appMetadata and roles', () => {
       const token = { decoded: undefined, namespace: null }
       expect(parseJWT(token)).toEqual({ appMetadata: {}, roles: [] })
     })
 
-    test('it handles an undefined namespace in token and returns empty appMetdata and roles', () => {
+    test('it handles an undefined namespace in token and returns empty appMetadata and roles', () => {
       const token = { decoded: null, namespace: undefined }
       expect(parseJWT(token)).toEqual({ appMetadata: {}, roles: [] })
     })

packages/api/src/index.ts

@@ -8,7 +8,6 @@ export * from './makeServices'
 export * from './makeMergedSchema/makeMergedSchema'
 export * from './functions/graphql'
 export * from './globalContext'
-export * from './parseJWT'
 export * from './types'
 export * from './functions/dbAuth/DbAuthHandler'
 export { dbAuthSession } from './functions/dbAuth/shared'

packages/cli/src/commands/setup/auth/templates/auth.js.template

@@ -1,4 +1,3 @@
-
 import { AuthenticationError, ForbiddenError, parseJWT } from '@redwoodjs/api'
 
 /**
@@ -13,42 +12,72 @@ import { AuthenticationError, ForbiddenError, parseJWT } from '@redwoodjs/api'
  *
  * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
  */
-export const getCurrentUser = async (decoded, { _token, _type }, { _event, _context }) => {
+export const getCurrentUser = async (
+  decoded,
+  { _token, _type },
+  { _event, _context }
+) => {
   return { ...decoded, roles: parseJWT({ decoded }).roles }
 }
 
+/**
+ * The user is authenticated if there is a currentUser in the context
+ *
+ * @returns {boolean} - If the currentUser is authenticated
+ */
+export const isAuthenticated = () => {
+  return !!context.currentUser
+}
+
+/**
+ * Checks if the currentUser is authenticated (and assigned one of the given roles)
+ *
+ * @param {string | string[]} roles - A single role or list of roles to check if the user belongs to
+ *
+ * @returns {boolean} - Returns true if the currentUser is authenticated (and assigned one of the given roles)
+ * or false if not (or no roles provided)
+ */
+export const hasRole = ({ roles }) => {
+  if (!isAuthenticated()) {
+    return false
+  }
+
+  if(!!roles) {
+    if (Array.isArray(roles) {
+      return context.currentUser.roles?.some((r) => roles.includes(r))
+    }
+
+    if (typeof roles === 'string') {
+      return context.currentUser.roles?.includes(roles)
+    }
+
+    // roles not found
+    return false
+  }
+
+  return false
+}
+
 /**
  * Use requireAuth in your services to check that a user is logged in,
  * whether or not they are assigned a role, and optionally raise an
  * error if they're not.
  *
- * @param {string=} roles - An optional role or list of roles
- * @param {string[]=} roles - An optional list of roles
- * @returns {boolean} - If the currentUser is authenticated (and assigned one of the given roles)
+ * @param {string= | string[]=} roles - A single role or list of roles to check if the user belongs to
+ *
+ * @returns - If the currentUser is authenticated (and assigned one of the given roles)
  *
  * @throws {AuthenticationError} - If the currentUser is not authenticated
  * @throws {ForbiddenError} If the currentUser is not allowed due to role permissions
  *
  * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
  */
-export const requireAuth = ({ role } = {}) => {
-  if (!context.currentUser) {
+export const requireAuth = ({ roles } = {}) => {
+  if (!isAuthenticated) {
     throw new AuthenticationError("You don't have permission to do that.")
   }
 
-  if (
-    typeof role !== 'undefined' &&
-    typeof role === 'string' &&
-    !context.currentUser.roles?.includes(role)
-  ) {
-    throw new ForbiddenError("You don't have access to do that.")
-  }
-
-  if (
-    typeof role !== 'undefined' &&
-    Array.isArray(role) &&
-    !context.currentUser.roles?.some((r) => role.includes(r))
-  ) {
+  if (!hasRole({ roles })) {
     throw new ForbiddenError("You don't have access to do that.")
   }
 }

packages/cli/src/commands/setup/auth/templates/azureActiveDirectory.auth.js.template

@@ -1,61 +1,82 @@
-// Define what you want `currentUser` to return throughout your app. For example,
-// to return a real user from your database, you could do something like:
-//
-//   export const getCurrentUser = async ({ email }) => {
-//     return await db.user.findUnique({ where: { email } })
-//   }
-
 import { AuthenticationError, ForbiddenError, parseJWT } from '@redwoodjs/api'
 
-export const getCurrentUser = async (decoded, { token, type }) => {
-  return {
-    email: decoded.preferred_username ?? null,
-    ...decoded,
-    roles: parseJWT({ decoded }).roles
-  }
+/**
+ * getCurrentUser returns the user information together with
+ * an optional collection of roles used by requireAuth() to check
+ * if the user is authenticated or has role-based access
+ *
+ * @param decoded - The decoded access token containing user info and JWT claims like `sub`
+ * @param { token, SupportedAuthTypes type } - The access token itself as well as the auth provider type
+ * @param { APIGatewayEvent event, Context context } - An object which contains information from the invoker
+ * such as headers and cookies, and the context information about the invocation such as IP Address
+ *
+ * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
+ */
+export const getCurrentUser = async (
+  decoded,
+  { _token, _type },
+  { _event, _context }
+) => {
+  return { ...decoded, roles: parseJWT({ decoded }).roles }
 }
 
-// Use this function in your services to check that a user is logged in, and
-// optionally raise an error if they're not.
+/**
+ * The user is authenticated if there is a currentUser in the context
+ *
+ * @returns {boolean} - If the currentUser is authenticated
+ */
+export const isAuthenticated = () => {
+  return !!context.currentUser
+}
+
+/**
+ * Checks if the currentUser is authenticated (and assigned one of the given roles)
+ *
+ * @param {string= | string[]=} roles - A single role or list of roles to check if the user belongs to
+ *
+ * @returns {boolean} - Returns true if the currentUser is authenticated (and assigned one of the given roles)
+ */
+export const hasRole = ({ roles }) => {
+  if (!isAuthenticated()) {
+    return false
+  }
+
+  if(!!roles) {
+    if (Array.isArray(roles) {
+      return context.currentUser.roles?.some((r) => roles.includes(r))
+    }
+
+    if (typeof roles === 'string') {
+      return context.currentUser.roles?.includes(roles)
+      }
+
+    // roles not found
+    return false
+  }
+
+  return false
+}
 
 /**
  * Use requireAuth in your services to check that a user is logged in,
  * whether or not they are assigned a role, and optionally raise an
  * error if they're not.
  *
- * @param {string=} roles - An optional role or list of roles
- * @param {string[]=} roles - An optional list of roles
-
- * @example
+ * @param {string= | string[]=} roles - A single role or list of roles to check if the user belongs to
  *
- * // checks if currentUser is authenticated
- * requireAuth()
+ * @returns - If the currentUser is authenticated (and assigned one of the given roles)
  *
- * @example
+ * @throws {AuthenticationError} - If the currentUser is not authenticated
+ * @throws {ForbiddenError} If the currentUser is not allowed due to role permissions
  *
- * // checks if currentUser is authenticated and assigned one of the given roles
- * requireAuth({ role: 'admin' })
- * requireAuth({ role: ['editor', 'author'] })
- * requireAuth({ role: ['publisher'] })
+ * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
  */
-export const requireAuth = ({ role } = {}) => {
-  if (!context.currentUser) {
+export const requireAuth = ({ roles } = {}) => {
+  if (!isAuthenticated) {
     throw new AuthenticationError("You don't have permission to do that.")
   }
 
-  if (
-    typeof role !== 'undefined' &&
-    typeof role === 'string' &&
-    !context.currentUser.roles?.includes(role)
-  ) {
-    throw new ForbiddenError("You don't have access to do that.")
-  }
-
-  if (
-    typeof role !== 'undefined' &&
-    Array.isArray(role) &&
-    !context.currentUser.roles?.some((r) => role.includes(r))
-  ) {
+  if (!hasRole({ roles })) {
     throw new ForbiddenError("You don't have access to do that.")
   }
 }

packages/cli/src/commands/setup/auth/templates/dbAuth.auth.js.template

@@ -15,24 +15,63 @@ export const getCurrentUser = async (session) => {
   return await db.user.findUnique({ where: { id: session.id } })
 }
 
-export const requireAuth = ({ role } = {}) => {
-  if (!context.currentUser) {
-    throw new AuthenticationError("You don't have permission to do that.")
+/**
+ * The user is authenticated if there is a currentUser in the context
+ *
+ * @returns {boolean} - If the currentUser is authenticated
+ */
+export const isAuthenticated = () => {
+  return !!context.currentUser
+}
+
+/**
+ * Checks if the currentUser is authenticated (and assigned one of the given roles)
+ *
+ * @param {string= | string[]=} roles - A single role or list of roles to check if the user belongs to
+ *
+ * @returns {boolean} - Returns true if the currentUser is authenticated (and assigned one of the given roles)
+ */
+export const hasRole = ({ roles }) => {
+  if (!isAuthenticated()) {
+    return false
   }
 
-  if (
-    typeof role !== 'undefined' &&
-    typeof role === 'string' &&
-    !context.currentUser.roles?.includes(role)
-  ) {
-    throw new ForbiddenError("You don't have access to do that.")
+  if(!!roles) {
+    if (Array.isArray(roles) {
+      return context.currentUser.roles?.some((r) => roles.includes(r))
+    }
+
+    if (typeof roles === 'string') {
+      return context.currentUser.roles?.includes(roles)
+      }
+
+    // roles not found
+    return false
+  }
+
+  return false
+}
+
+/**
+ * Use requireAuth in your services to check that a user is logged in,
+ * whether or not they are assigned a role, and optionally raise an
+ * error if they're not.
+ *
+ * @param {string= | string[]=} roles - A single role or list of roles to check if the user belongs to
+ *
+ * @returns - If the currentUser is authenticated (and assigned one of the given roles)
+ *
+ * @throws {AuthenticationError} - If the currentUser is not authenticated
+ * @throws {ForbiddenError} If the currentUser is not allowed due to role permissions
+ *
+ * @see https://github.com/redwoodjs/redwood/tree/main/packages/auth for examples
+ */
+export const requireAuth = ({ roles } = {}) => {
+  if (!isAuthenticated) {
+    throw new AuthenticationError("You don't have permission to do that.")
   }
 
-  if (
-    typeof role !== 'undefined' &&
-    Array.isArray(role) &&
-    !context.currentUser.roles?.some((r) => role.includes(r))
-  ) {
+  if (!hasRole({ roles })) {
     throw new ForbiddenError("You don't have access to do that.")
   }
 }

packages/cli/src/commands/setup/auth/templates/ethereum.auth.js.template

@@ -9,6 +9,15 @@ export const getCurrentUser = async (decoded) => {
   return db.user.findUnique({ where: { address: decoded.address } })
 }
 
+/**
+ * The user is authenticated if there is a currentUser in the context
+ *
+ * @returns {boolean} - If the currentUser is authenticated
+ */
+export const isAuthenticated = () => {
+  return !!context.currentUser
+}
+
 // Use this function in your services to check that a user is logged in, and
 // optionally raise an error if they're not.
 

packages/cli/src/commands/setup/auth/templates/firebase.auth.js.template

@@ -27,6 +27,15 @@ export const getCurrentUser = async (decoded, { token, type }) => {
   return { email, uid }
 }
 
+/**
+ * The user is authenticated if there is a currentUser in the context
+ *
+ * @returns {boolean} - If the currentUser is authenticated
+ */
+export const isAuthenticated = () => {
+  return !!context.currentUser
+}
+
 // Use this function in your services to check that a user is logged in, and
 // optionally raise an error if they're not.
 

packages/create-redwood-app/template/api/src/lib/auth.ts

@@ -8,6 +8,14 @@
  * See https://redwoodjs.com/docs/authentication for more info.
  */
 
-export const requireAuth = () => {
+export const isAuthenticated = () => {
   return true
 }
+
+export const hasRole = ({ roles }) => {
+  return roles !== undefined
+}
+
+export const requireAuth = () => {
+  return isAuthenticated()
+}