fix(authentication-local): Local Auth - Nested username & Password fields (#3091)

Author: eXigentCoder

docs/api/authentication/local.md

@@ -51,8 +51,8 @@ export const authentication = (app: Application) => {
 
 Options are set in the [authentication configuration](./service.md#configuration) under the strategy name. Available options are:
 
-- `usernameField`: Name of the username field (e.g. `'email'`)
-- `passwordField`: Name of the password field (e.g. `'password'`)
+- `usernameField`: Name of the username field (e.g. `'email'`), may be a nested property (e.g. `'auth.email'`)
+- `passwordField`: Name of the password field (e.g. `'password'`), may be a nested property (e.g. `'auth.password'`)
 - `hashSize` (default: `10`): The BCrypt salt length
 - `errorMessage` (default: `'Invalid login'`): The error message to return on errors
 - `entityUsernameField` (default: `usernameField`): Name of the username field on the entity if authentication request data and entity field names are different

packages/authentication-local/src/strategy.ts

@@ -122,16 +122,15 @@ export class LocalStrategy extends AuthenticationBaseStrategy {
 
   async authenticate(data: AuthenticationRequest, params: Params) {
     const { passwordField, usernameField, entity, errorMessage } = this.configuration
-    const username = data[usernameField]
-    const password = data[passwordField]
+    const username = get(data, usernameField)
+    const password = get(data, passwordField)
 
     if (!password) {
       // exit early if there is no password
       throw new NotAuthenticated(errorMessage)
     }
 
     const result = await this.findEntity(username, omit(params, 'provider'))
-
     await this.comparePassword(result, password)
 
     return {

packages/authentication-local/test/fixture.ts

@@ -10,10 +10,13 @@ export type ServiceTypes = {
   users: MemoryService
 }
 
-export function createApplication(app = feathers<ServiceTypes>()) {
+export function createApplication(
+  app = feathers<ServiceTypes>(),
+  authOptionOverrides: Record<string, unknown> = {}
+) {
   const authentication = new AuthenticationService(app)
 
-  app.set('authentication', {
+  const authConfig = {
     entity: 'user',
     service: 'users',
     secret: 'supersecret',
@@ -22,8 +25,10 @@ export function createApplication(app = feathers<ServiceTypes>()) {
     local: {
       usernameField: 'email',
       passwordField: 'password'
-    }
-  })
+    },
+    ...authOptionOverrides
+  }
+  app.set('authentication', authConfig)
 
   authentication.register('jwt', new JWTStrategy())
   authentication.register('local', new LocalStrategy())
@@ -40,9 +45,9 @@ export function createApplication(app = feathers<ServiceTypes>()) {
     })
   )
 
-  app.service('users').hooks([protect('password')])
+  app.service('users').hooks([protect(authConfig.local.passwordField)])
   app.service('users').hooks({
-    create: [hashPassword('password')],
+    create: [hashPassword(authConfig.local.passwordField)],
     get: [
       async (context, next) => {
         await next()

packages/authentication-local/test/strategy.test.ts

@@ -195,4 +195,30 @@ describe('@feathersjs/authentication-local/strategy', () => {
 
     assert.notStrictEqual(resolvedData.password, 'supersecret')
   })
+  it('should allow for nested values in the usernameField', async () => {
+    const appWithNestedFieldOverride = createApplication(undefined, {
+      local: {
+        usernameField: 'auth.email',
+        passwordField: 'auth.password'
+      }
+    })
+    const nestedUser = await appWithNestedFieldOverride.service('users').create({ auth: { email, password } })
+    const authService = appWithNestedFieldOverride.service('authentication')
+    const authResult = await authService.create({
+      strategy: 'local',
+      auth: {
+        email,
+        password
+      }
+    })
+    const { accessToken } = authResult
+
+    assert.ok(accessToken)
+    assert.strictEqual(authResult.user.auth.email, email)
+
+    const decoded = await authService.verifyAccessToken(accessToken)
+
+    assert.strictEqual(decoded.sub, `${nestedUser.id}`)
+    //
+  })
 })