在Android上设置Google登录时出现"FirebaseError:提供的身份验证凭据无效"错误

Question

我一直在尝试为我的应用设置谷歌登录.

我按照这里的教程:

https://developers.google.com/identity/sign-in/android/start-integrating

我做了一切.我可以登录登录并退出.

然后我添加了一个异步任务来获取一个令牌,它似乎成功检索.它实现如下:

private class GetIdTokenTask extends AsyncTask<Void, Void, String> {


            private static final  String SERVER_CLIEdNT_ID = "749433126040-ca4gfj7ucuh0m2suo3230u03o3d7doni.apps.googleusercontent.com";

        @Override
        protected String doInBackground(Void... params) {

            String accountName = Plus.AccountApi.getAccountName(mGoogleApiClient);
            Account account = new Account(accountName, GoogleAuthUtil.GOOGLE_ACCOUNT_TYPE);
            String scopes = "audience:server:client_id:" + SERVER_CLIEdNT_ID; // Not the app's client ID.
            try {
                return GoogleAuthUtil.getToken(getApplicationContext(), account, scopes);
            } catch (IOException e) {
                Log.e(TAG, "Error retrieving ID token.", e);
                return null;
            } catch (GoogleAuthException e) {
                Log.e(TAG, "Error retrieving ID token. Google exception", e);
                return null;
            }
        }

        @Override
        protected void onPostExecute(String result) {
            Log.i(TAG, "ID token: " + result);
            if (result != null) {

                idToken = result;

                Toast.makeText(context, "token is " + result, Toast.LENGTH_LONG).show();


            } else {
                // There was some error getting the ID Token
                // ...
                Toast.makeText(context, "token is null", Toast.LENGTH_LONG).show();
            }
        }

    }

因此,在运行该方法并获取令牌后,我运行通用firebase代码以连接到Firebase(已经设置了谷歌应用程序,将客户端ID放入firebase,启用它等)我从https获取代码:/ /www.firebase.com/docs/android/guide/login/google.html

并实现如下:

 public void loginFireBase() {


    Firebase ref = new Firebase("https://boiling-fire-944.firebaseio.com");
    ref.authWithOAuthToken("google", idToken, new Firebase.AuthResultHandler() {


        @Override
        public void onAuthenticated(AuthData authData) {
            // the Google user is now authenticated with your Firebase app

            Toast.makeText(context, "user succesfully authenticated with firebase", Toast.LENGTH_LONG).show();
            Toast.makeText(context, idToken, Toast.LENGTH_LONG).show();
        }

        @Override
        public void onAuthenticationError(FirebaseError firebaseError) {
   ///////THIS IS THE PART WHERE THE ERROR IS GENEREATED  FROM//////////

            Log.v("firebase problem", firebaseError.toString());
            Toast.makeText(context, "I'm an authenticated error" + "id Token was " + idToken, Toast.LENGTH_LONG).show();


        }
    });
}

}

所以最终,我登录,我得到一个令牌,然后将其传递给firebase authWithOAuthToken方法,然后我得到错误:

FirebaseError:提供的身份验证凭据无效.

谁能在我的代码中看到任何问题？我有一种感觉,令牌无效,但无法找到检查其有效性的方法.

告诉我,如果你需要我发布更多,我试着保持简短.

感谢任何可以提供帮助的人!

Answer 1

每当我需要在Android上使用Firebase进行身份验证时,我都会回到Firebase Android登录演示.以下是该应用获取Google身份验证的OAuth令牌的方式:

String scope = String.format("oauth2:%s", Scopes.PLUS_LOGIN);
token = GoogleAuthUtil.getToken(
                                GoogleOAuthActivity.this, 
                                Plus.AccountApi.getAccountName(mGoogleApiClient), 
                                scope);

看起来您正在为用户获取跨客户端ID,这不是有效的OAuth令牌.

更新(20160308):现在我改为查看FirebaseUI库,其中包含此功能并且更新.