发布到GoogleCloudMessaging会返回400 InvalidTokenFormat [英] Post to GoogleCloudMessaging returns 400 InvalidTokenFormat

问题描述

我正在尝试发布到 Google Cloud Messaging Api（GCM），但我的请求失败，响应 HTTP / 1.1 400 InvalidTokenFormat 。

然而，如果我改变我的程序以便它连接而不是本地主机，而且我只是通过将请求传递给其他将请求传输到GCM的请求，请求成功。下面是失败的代码：

  import java.net.URL; 
导入java.net.HttpURLConnection; 
 import java.io.OutputStream; 
 
 public class GcmPostMe {
 public static void main（String [] args）{
 
 String data ={\to \：\ ***被审查的收件人标记*** \}; 
 String type =application / json; 
尝试{
网址u =新网址（https://android.googleapis.com/gcm/send/）; 
 HttpURLConnection conn =（HttpURLConnection）u.openConnection（）; 
 conn.setDoOutput（true）; 
 conn.setRequestMethod（POST）; 
 conn.setRequestProperty（Authorization，key =+*** censored api key ***）; 
 conn.setRequestProperty（Content-Type，type）; 
 conn.setRequestProperty（Content-Length，String.valueOf（data.length（）））; 
 OutputStream os = conn.getOutputStream（）; 
 os.write（data.getBytes（））; 
 System.out.println（conn.getResponseCode（）++ conn.getResponseMessage（））; 
 conn.disconnect（）; 
} catch（Exception e）{
 System.err.println（出错了）; 
} 
} 
} 
  

上述代码中的网址为 http：// localhost：10000 / gcm / send ，然后执行

  nc -l 10000 | sed -es / localhost：10000 / android.googleapis.com /| openssl s_client -connect android.googleapis.com:443 
  

在我运行程序之前。

解决方案

好的，我发现我的错误：路径错误，尾随 / 在某种程度上使它无法工作。

执行HTTP POST以 https://android.googleapis.com/gcm/send/ 为您提供HTTP / 1.1 400 InvalidTokenFormat

对http://android.googleapis.com/gcm/send （不带结尾符/）成功使用HTTP / 1.1 200 OK

以下工作：

  import java.net.URL; 
导入java.net.HttpURLConnection; 
 import java.io.OutputStream; 
 
 public class GcmPostMe {
 public static void main（String [] args）{
 
 String data ={\to \：\ ***被审查的收件人标记*** \}; 
 String type =application / json; 
尝试{
网址u =新网址（https://android.googleapis.com/gcm/send）; 
 HttpURLConnection conn =（HttpURLConnection）u.openConnection（）; 
 conn.setDoOutput（true）; 
 conn.setRequestMethod（POST）; 
 conn.setRequestProperty（Authorization，key =+*** censored api key ***）; 
 conn.setRequestProperty（Content-Type，type）; 
 conn.setRequestProperty（Content-Length，String.valueOf（data.length（）））; 
 OutputStream os = conn.getOutputStream（）; 
 os.write（data.getBytes（））; 
 System.out.println（conn.getResponseCode（）++ conn.getResponseMessage（））; 
 conn.disconnect（）; 
} catch（Exception e）{
 System.err.println（出错了）; 
} 
} 
} 
  

I'm trying to post to Googles Cloud Messaging Api (GCM), but my request fails with response HTTP/1.1 400 InvalidTokenFormat.

However, if I change my program so that it connects to localhost instead, and I simply pipe the request it makes through to something else that transmits the request to GCM, the request succeeds. Below is the code that fails:

import java.net.URL;
import java.net.HttpURLConnection;
import java.io.OutputStream;

public class GcmPostMe {
    public static void main (String[] args) {

        String data = "{\"to\":\" *** censored recipient token *** \"}";
        String type = "application/json";
        try {
            URL u = new URL("https://android.googleapis.com/gcm/send/");
            HttpURLConnection conn = (HttpURLConnection) u.openConnection();
            conn.setDoOutput(true);
            conn.setRequestMethod("POST");
            conn.setRequestProperty( "Authorization", "key=" + " *** censored api key *** " );
            conn.setRequestProperty( "Content-Type", type );
            conn.setRequestProperty( "Content-Length", String.valueOf(data.length()));
            OutputStream os = conn.getOutputStream();
            os.write(data.getBytes());
            System.out.println(conn.getResponseCode() + " " + conn.getResponseMessage() );
            conn.disconnect();
        } catch (Exception e) {
            System.err.println("Something went wrong");
        }
    }
}

It works when I change the URL in the code above to "http://localhost:10000/gcm/send" and do

nc -l 10000 | sed -e "s/localhost:10000/android.googleapis.com/" | openssl s_client -connect android.googleapis.com:443

before I run the program.

解决方案

Ok, I've found my mistake: the path was wrong, the trailing / in the path somehow makes it not work.

Doing HTTP POST to https://android.googleapis.com/gcm/send/ gives you HTTP/1.1 400 InvalidTokenFormat

Doing the same POST to http://android.googleapis.com/gcm/send (without the trailing /) succeeds with HTTP/1.1 200 OK

The following works:

import java.net.URL;
import java.net.HttpURLConnection;
import java.io.OutputStream;

public class GcmPostMe {
    public static void main (String[] args) {

        String data = "{\"to\":\" *** censored recipient token *** \"}";
        String type = "application/json";
        try {
            URL u = new URL("https://android.googleapis.com/gcm/send");
            HttpURLConnection conn = (HttpURLConnection) u.openConnection();
            conn.setDoOutput(true);
            conn.setRequestMethod("POST");
            conn.setRequestProperty( "Authorization", "key=" + " *** censored api key *** " );
            conn.setRequestProperty( "Content-Type", type );
            conn.setRequestProperty( "Content-Length", String.valueOf(data.length()));
            OutputStream os = conn.getOutputStream();
            os.write(data.getBytes());
            System.out.println(conn.getResponseCode() + " " + conn.getResponseMessage() );
            conn.disconnect();
        } catch (Exception e) {
            System.err.println("Something went wrong");
        }
    }
}

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