Android：Cloud End Point的Firebase身份验证不起作用 [英] Android: Firebase auth for Cloud End Point not working

问题描述

我已经按照链接完成了服务器上的配置

 / users：
发表：
描述：<描述> 
 operationId：< OperationID> 
产生：
  - application / json
响应：
 200：
描述：user List
模式：
 $ ref ：＃/ definitions / echoMessage
参数：
  -  description：搜索标准
 in：body 
名称：message 
 required：true 
 schema：
 $ ref：＃/ definitions / echoMessage
 security：
  -  firebase：[] 
  

和

  firebase：
 authorizationUrl：
流：隐式
类型：oauth2
 x-google-issuer：https://securetoken.google.com/<Project-ID> 
 x-google-jwks_uri：https://www.googleapis.com/service_accounts/v1/metadata/x509/[e-mail]
  

在通过JWT标准之后，我开始知道在调用这个服务的时候，我们必须在Bearer中添加Authorization头，所以我添加了如下的头文件

授权：持票人

我最初尝试使用

  String token = FirebaseInstanceId.getInstance（）。getToken（）; 
  

但它给了错误，所以我尝试了，

  FirebaseUser firebaseUser = FirebaseAuth.getInstance（）。getCurrentUser（）; 
 if（firebaseUser！= null）{
 
 firebaseUser.getIdToken（true）
 .addOnSuccessListener（new OnSuccessListener< GetTokenResult>（）{
 @Override 
）public void onSuccess（GetTokenResult getTokenResult）{
 String token = getTokenResult.getToken（）; 
 SharedPreferences.Editor editor = mSharedPreferences.edit（）; 
 editor.putString（Constants.PREFS_FCM_TOKEN，token ）; 
 editor.apply（）; 
} 
}）; 
 
 
 
 
 
 $ b 
但是即使对于这两个代码，我也会收到错误401和invalid_token 
解决方案
 
经过这么多天的努力，我能够解决这个问题。
 
 
我解决了这个问题，
 
 
 / users：
 post：
 description： <描述> 中
 operationId：< OperationID> 
产生：
  - application / json
响应：
 200：
描述：user List
模式：
 $ ref ：＃/ definitions / echoMessage
参数：
  -  description：搜索标准
 in：body 
名称：message 
 required：true 
 schema：
 $ ref：＃/ definitions / echoMessage
 security：
  -  firebase：[] 
  
和
 
 
  firebase：
 authorizationUrl：
流：隐式
类型：oauth2
 x-google-issuer：https://securetoken.google.com/<Project-ID> 
 x-google-jwks_uri：https://www.googleapis.com/service_accounts/v1/metadata/x509/[e-mail]
 x-google-audiences：<项目-ID>中//我添加了这个，这是主要的罪魁祸首。 
  
如评论中提到的，我错过了
 
 
 
 
 x-google-audiences：
 
 
在服务器配置中。
 
 
 
另一个说明使用哪个标记：我们必须使用第二种方法，我在问题中提到过，如下所示：
 
 
  FirebaseUser firebaseUser = FirebaseAuth.getInstance（）。getCurrentUser（）; 
 if（firebaseUser！= null）{
 
 firebaseUser.getIdToken（true）
 .addOnSuccessListener（new OnSuccessListener< GetTokenResult>（）{
 @Override 
）public void onSuccess（GetTokenResult getTokenResult）{
 String token = getTokenResult.getToken（）; 
 SharedPreferences.Editor editor = mSharedPreferences.edit（）; 
 editor.putString（Constants.PREFS_FCM_TOKEN，token ）; 
 editor.apply（）; 
} 
}）; 
} 
  
 
I have followed the link and have done the configuration on the server as mentioned.
"/users":
post:
  description: "<Description>"
  operationId: "<OperationID>"
  produces:
  - "application/json"
  responses:
    200:
      description: "user List"
      schema:
        $ref: "#/definitions/echoMessage"
  parameters:
  - description: "Search Criteria"
    in: body
    name: message
    required: true
    schema:
      $ref: "#/definitions/echoMessage"
  security:
    - firebase: []
and
  firebase:
authorizationUrl: ""
flow: "implicit"
type: "oauth2"
x-google-issuer: "https://securetoken.google.com/<Project-ID>"
x-google-jwks_uri: "https://www.googleapis.com/service_accounts/v1/metadata/x509/[e-mail]"
And after going through JWT standards I came to know that while calling calling the service we have to add Authorization header with Bearer so I have added the header as follows,

Authorization: Bearer 

I initially tried with 
String token = FirebaseInstanceId.getInstance().getToken();
But it gave error so I tried with,
FirebaseUser firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
    if (firebaseUser != null) {

        firebaseUser.getIdToken(true)
                .addOnSuccessListener(new OnSuccessListener<GetTokenResult>() {
                    @Override
                    public void onSuccess(GetTokenResult getTokenResult) {
                        String token = getTokenResult.getToken();
                        SharedPreferences.Editor editor = mSharedPreferences.edit();
                        editor.putString(Constants.PREFS_FCM_TOKEN, token);
                        editor.apply();
                    }
                });
    }
But even with both codes I am getting error as 401 and invalid_token
解决方案
After so many days of struggle I am able to solve the issue.

I solved the issue by following this,
    "/users":
post:
  description: "<Description>"
  operationId: "<OperationID>"
  produces:
  - "application/json"
  responses:
    200:
      description: "user List"
      schema:
        $ref: "#/definitions/echoMessage"
  parameters:
  - description: "Search Criteria"
    in: body
    name: message
    required: true
    schema:
      $ref: "#/definitions/echoMessage"
  security:
    - firebase: []
and
firebase:
authorizationUrl: ""
flow: "implicit"
type: "oauth2"
x-google-issuer: "https://securetoken.google.com/<Project-ID>"
x-google-jwks_uri: "https://www.googleapis.com/service_accounts/v1/metadata/x509/[e-mail]"
x-google-audiences: "<Project-ID>" //I have added this, this was the main culprit.
as mentioned in the comment, I was missing 

  
x-google-audiences: ""
in the server configuration.

And for another clarification for which token to use: We have to use the second approach that I have mentioned in the question, i.e, as below,
FirebaseUser firebaseUser = FirebaseAuth.getInstance().getCurrentUser();
    if (firebaseUser != null) { 

        firebaseUser.getIdToken(true)
                .addOnSuccessListener(new OnSuccessListener<GetTokenResult>() { 
                    @Override 
                    public void onSuccess(GetTokenResult getTokenResult) {
                        String token = getTokenResult.getToken();
                        SharedPreferences.Editor editor = mSharedPreferences.edit();
                        editor.putString(Constants.PREFS_FCM_TOKEN, token);
                        editor.apply();
                    } 
                }); 
    }


                        
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