Reddit oAuth 2适用于Android“无用户”应用程序

Question

我试图实现Reddit oAuth2（每一个应用程序，利用Reddit的内容必须有这个实现）在基于Android的“无用户”应用程序，我遵循的指导方针。

1. 我注册了一个应用程序，并获得了相应的client_id.
2. 为了正确编写Android代码，我遵循以下API指南和更新指南。

因此，我编写了两种方法来解决这个问题，似乎都不起作用。对于这两个选项，适当片段中的调用是相同的，如下所示：

    public void oAuth(){

    String bodyString = "grant_type=" + "https://oauth.reddit.com/grants/installed_client"
                       + "&device_id=" + UUID.randomUUID().toString();

    TypedInput requestBody = new TypedByteArray("application/x-www-form-urlencoded", bodyString.getBytes(Charset.forName("UTF-8")));

    RedditAPI.sRedditAuth().redditAuth(requestBody, new Callback<TokenResponse>() {
        @Override
        public void success(TokenResponse tokenResponse, Response response) {
            Log.d("OATH_TAG", "oAuth() | YAY! :)");
        }

        @Override
        public void failure(RetrofitError error) {
            Log.d("OATH_TAG", "oAuth() | NOOOOOoooooo.... :(");
        }
      });
    }

  public interface RedditAuthInterface {
  @POST(Urlz.REDDIT_OATH2_PATH)
  void redditAuth(@Body TypedInput body, Callback<TokenResponse> result);

 }

   //the adapter
   public static RedditAuthInterface sRedditAuth() {
   if (sRedditAuthInterface == null) {
   RestAdapter restAdapter = new RestAdapter
                                  .Builder()
                                  .setClient(getAuthClient())
                                  .setEndpoint(Urlz.BASE_REDDIT_URL)
                                  .build();
    sRedditAuthInterface = restAdapter.create(RedditAuthInterface.class);
  }

  return sRedditAuthInterface;
 }


/* support methods */
private static OkClient getAuthClient() {

final OkHttpClient okHttpClient = new OkHttpClient();
okHttpClient.setReadTimeout(Static.READ_TIMEOUT, TimeUnit.SECONDS);
okHttpClient.setConnectTimeout(Static.CONNECT_TIMEOUT, TimeUnit.SECONDS);
/*okHttpClient.setAuthenticator(new Authenticator() {
    @Override
    public Request authenticate(Proxy proxy, Response response) throws IOException {
        String credential = Credentials.basic(BldCnfg.REDDIT_CLIENT_ID, BldCnfg.REDDIT_PASS);
        return response.request().newBuilder().header("Authorization", credential).build();
    }

    @Override
    public Request authenticateProxy(Proxy proxy, Response response) throws IOException {
        return null;
    }
 });*/

 okHttpClient.networkInterceptors().add(OAUTH_INTERCEPTOR);

  return new OkClient(okHttpClient);
}

private static final Interceptor OAUTH_INTERCEPTOR = new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
    Response originalResponse = chain.proceed(chain.request());
    String credentials = BldCnfg.REDDIT_CLIENT_ID + ":" + BldCnfg.REDDIT_PASS; // REDDIT_PASS = "" as by API guides
    String string = "Basic " + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP);

    originalResponse.header("Authorization", string);
    originalResponse.header("Accept", "application/json");
    return originalResponse;
     }
 };

   public interface RedditAuthInterface {
  @POST(Urlz.REDDIT_OATH2_PATH)
  void redditAuth(@Body TypedInput body, Callback<TokenResponse> result);

   }


     //the adapter
      public static RedditAuthInterface sRedditAuth() {
      if (sRedditAuthInterface == null) {
    RestAdapter restAdapter = new RestAdapter
                                  .Builder()
                                  .setClient(getConfuguredClient())
                                    .setRequestInterceptor(getRequestInerceptorPass())
                                  .setEndpoint(Urlz.BASE_REDDIT_URL)
                                  .build();
    sRedditAuthInterface = restAdapter.create(RedditAuthInterface.class);
}

return sRedditAuthInterface;
}


/* support methods */

public static RequestInterceptor getRequestInerceptorPass() {
RequestInterceptor rqInter = new RequestInterceptor() {
    @Override
    public void intercept(RequestFacade request) {

        String credentials = BldCnfg.REDDIT_CLIENT_ID + ":" + BldCnfg.REDDIT_PASS; // REDDIT_PASS = "" as by API guides
        String string = "Basic " + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP);
        request.addHeader("Authorization", string);
        request.addHeader("Accept", "application/json");
      }
    };

return rqInter;
}


private static OkClient getConfuguredClient() {

final OkHttpClient okHttpClient = new OkHttpClient();
okHttpClient.setReadTimeout(Static.READ_TIMEOUT, TimeUnit.SECONDS);
okHttpClient.setConnectTimeout(Static.CONNECT_TIMEOUT, TimeUnit.SECONDS);
return new OkClient(okHttpClient);
}

似乎我得到的响应是空的（范围只得到“*”）。成功的响应如下所示：

标题如下所示：

你知道我做错了什么吗？有人这么做过吗？

官方的Reddit github维基缺少Android的例子（不过几乎所有其他语言都有）。

Answer 1

我以前也经历过同样的问题，并在Android中把这个库制作成handel OAuth2。该库是一个改型的扩展，它简化了针对OAuth2提供程序的身份验证过程。