Migrate auth to component platform (#2317)

* Mirgrate Auth to component framework

* format auth

* fixed indentations

Author: Feiyang1

packages/app-types/index.d.ts

@@ -1,3 +1,5 @@
+import { Provider } from '@firebase/component';
+
 /**
  * @license
  * Copyright 2017 Google Inc.

packages/auth-interop-types/README.md

@@ -0,0 +1,3 @@
+# @firebase/auth-interop-types
+
+**This package is not intended for direct usage, and should only be used via the officially supported [firebase](https://www.npmjs.com/package/firebase) package.**

packages/auth-interop-types/index.d.ts

@@ -0,0 +1,35 @@
+/**
+ * @license
+ * Copyright 2019 Google Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+export interface FirebaseAuthTokenData {
+  accessToken: string;
+}
+
+export interface FirebaseAuthInternal {
+  getToken(refreshToken?: boolean): Promise<FirebaseAuthTokenData | null>;
+  getUid(): string | null;
+  addAuthTokenListener(fn: (token: string | null) => void): void;
+  removeAuthTokenListener(fn: (token: string | null) => void): void;
+}
+
+declare module '@firebase/component' {
+  interface ComponentContainer {
+    getProvider(name: 'auth-internal'): Provider<FirebaseAuthInternal>;
+  }
+
+  interface Provider<T> {}
+}

packages/auth-interop-types/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "@firebase/auth-interop-types",
+  "version": "0.1.0",
+  "description": "@firebase/auth interop Types",
+  "author": "Firebase <[email protected]> (https://firebase.google.com/)",
+  "license": "Apache-2.0",
+  "scripts": {
+    "test": "tsc"
+  },
+  "files": [
+    "index.d.ts"
+  ],
+  "peerDependencies": {
+    "@firebase/app-types": "0.x",
+    "@firebase/util": "0.x"
+  },
+  "repository": {
+    "directory": "packages/auth-types",
+    "type": "git",
+    "url": "https://github.com/firebase/firebase-js-sdk.git"
+  },
+  "bugs": {
+    "url": "https://github.com/firebase/firebase-js-sdk/issues"
+  },
+  "devDependencies": {
+    "typescript": "3.6.4"
+  }
+}

packages/auth-interop-types/tsconfig.json

@@ -0,0 +1,9 @@
+{
+  "extends": "../../config/tsconfig.base.json",
+  "compilerOptions": {
+    "noEmit": true
+  },
+  "exclude": [
+    "dist/**/*"
+  ]
+}

packages/auth/src/exports_auth.js

@@ -618,27 +618,10 @@ fireauth.exportlib.exportFunction(
 
 (function() {
   if (typeof firebase === 'undefined' || !firebase.INTERNAL ||
-      !firebase.INTERNAL.registerService) {
+      !firebase.INTERNAL.registerComponent) {
     throw new Error('Cannot find the firebase namespace; be sure to include ' +
         'firebase-app.js before this library.');
   } else {
-    /** @type {!firebase.ServiceFactory} */
-    var factory = function(app, extendApp) {
-      var auth = new fireauth.Auth(app);
-      extendApp({
-        'INTERNAL': {
-          // Extend app.INTERNAL.getUid.
-          'getUid': goog.bind(auth.getUid, auth),
-          'getToken': goog.bind(auth.getIdTokenInternal, auth),
-          'addAuthTokenListener':
-              goog.bind(auth.addAuthTokenListenerInternal, auth),
-          'removeAuthTokenListener':
-              goog.bind(auth.removeAuthTokenListenerInternal, auth)
-        }
-      });
-      return auth;
-    };
-
     var namespace = {
       // Exports firebase.auth.ActionCodeInfo.Operation.
       'ActionCodeInfo': {
@@ -687,34 +670,43 @@ fireauth.exportlib.exportFunction(
     fireauth.exportlib.exportFunction(namespace,
         'ActionCodeURL', fireauth.ActionCodeURL, []);
 
-    // Register Auth service with firebase.App.
-    firebase.INTERNAL.registerService(
-        fireauth.exportlib.AUTH_TYPE,
-        factory,
-        namespace,
-        // Initialize Auth when an App is created, so that tokens and Auth state
-        // listeners are available.
-        function (event, app) {
-          if (event === 'create') {
-            try {
-              app[fireauth.exportlib.AUTH_TYPE]();
-            } catch (e) {
-              // This is a silent operation in the background. If the auth
-              // initialization fails, it should not cause a fatal error.
-              // Instead when the developer tries to initialize again manually,
-              // the error will be thrown.
-              // One specific use case here is the initialization for the nodejs
-              // client when no API key is provided. This is commonly used
-              // for unauthenticated database access.
-            }
-          }
-        }
-        );
-
+    // Create auth components to register with firebase
+    const authComponent = { // provides Auth public APIs
+      'name': fireauth.exportlib.AUTH_TYPE,
+      'instanceFactory': function(container) {
+        var app = container['getProvider']('app')['getImmediate']();
+        return new fireauth.Auth(app);
+      },
+      'multipleInstances': false,
+      'serviceProps': namespace,
+      'instantiationMode': 'LAZY',
+      'type':  'PUBLIC'
+    };
+  
+    const authInteropComponent = { // provides Auth internal APIs
+      'name': 'auth-internal',
+      'instanceFactory': function(container) {
+        var auth = container['getProvider'](fireauth.exportlib.AUTH_TYPE)['getImmediate']();
+        return {
+          'getUid': goog.bind(auth.getUid, auth),
+          'getToken': goog.bind(auth.getIdTokenInternal, auth),
+          'addAuthTokenListener':
+            goog.bind(auth.addAuthTokenListenerInternal, auth),
+          'removeAuthTokenListener':
+            goog.bind(auth.removeAuthTokenListenerInternal, auth)
+        };
+      },
+      'multipleInstances': false,
+      'instantiationMode': 'LAZY',
+      'type':  'PRIVATE'
+    };
+  
+    firebase.INTERNAL.registerComponent(authComponent);
+    firebase.INTERNAL.registerComponent(authInteropComponent);
 
     // Expose User as firebase.User.
     firebase.INTERNAL.extendNamespace({
       'User': fireauth.AuthUser
     });
   }
-})();
+})();

packages/firebase/externs/firebase-app-internal-externs.js

@@ -20,21 +20,9 @@
  */
 
 /**
- * @param {string} name Service name
- * @param {!firebase.ServiceFactory} createService
- * @param {Object=} serviceProperties
- * @param {(function(string, !firebase.app.App): void)=} appHook
- * @param {boolean=} allowMultipleInstances Whether the service registered
- *   supports multiple instances on the same app.
- * @return {firebase.ServiceNamespace}
- */
-firebase.INTERNAL.registerService = function(
-  name,
-  createService,
-  serviceProperties,
-  appHook,
-  allowMultipleInstances
-) {};
+ * @param {!firebase.FirebaseComponent}
+ */
+firebase.INTERNAL.registerComponent = function(component) {};
 
 /** @param {!Object} props */
 firebase.INTERNAL.extendNamespace = function(props) {};