使用 org.apache.http.impl.client.ProxyClient 通过代理隧道访问 HTTPS Web 服务

Question

我需要通过 http 代理隧道访问一些 https soap 服务。所以我使用 org.apache.http.impl.client.ProxyClient 通过代理隧道连接到目标主机。其中returns我一个socket通过代理服务器连接到目标主机。返回的套接字已正确连接到目标系统。现在我需要调用目标系统中托管的 soap 服务。但我不知道如何通过套接字访问这些 https 服务。下面是我的示例程序。需要调用的服务示例url https://XX.XX.XX.XX:44330/sampleService/1.0

public static void proxyTunnelDemo(String url,String soapRequestBody) throws IOException, HttpException {
    ProxyClient proxyClient = new ProxyClient();
    HttpHost target = new HttpHost("XX.XX.XX.XX", 44330);
    HttpHost proxy = new HttpHost("YY.YY.YY.YY", 9293);
    UsernamePasswordCredentials credentials = new UsernamePasswordCredentials("********", "********");
    Socket socket = proxyClient.tunnel(proxy, target, credentials);

    // Need to access Web service through socket .
    // request method GET 
    // PORT  = 44330
    // url = https://XX.XX.XX.XX:44330/sampleService/1
    //soapRequestBody =  soap message needs to be sent.
String SOAP_CREDENTIALS = "*********";
SSLSocketFactory factory =  (SSLSocketFactory)SSLSocketFactory.getDefault();
    SSLSocket sslSocket = (SSLSocket)factory.createSocket(socket, target.getHostName(), target.getPort(), true);
    sslSocket.startHandshake();

try {


        //Send header
        BufferedWriter wr = new BufferedWriter(new OutputStreamWriter(sslSocket.getOutputStream(), StandardCharsets.UTF_8));
        String authorization  =  new BASE64Encoder().encode(SOAP_CREDENTIALS.getBytes());
        // You can use "UTF8" for compatibility with the Microsoft virtual machine.

        wr.write("GET / HTTP/1.1\r\n");
        wr.write("Host: "+target.getHostName()+"\r\n");
        wr.write("Content-Length:"+ soapRequestBody.length() + "\r\n");
        wr.write("Content-Type: text/html\"\r\n");
        wr.write("SOAPAction:"+url+"\r\n");
        wr.write("Authorization: Basic "+authorization+"\r\n");
        wr.write("\r\n ");           //Send data
        wr.write(soapRequestBody);
        wr.flush();

        BufferedReader in = new BufferedReader(
                new InputStreamReader(sslSocket.getInputStream(), StandardCharsets.UTF_8));
        String line = null;
        while ((line = in.readLine()) != null) {
            System.out.println(line);
        }

    } finally {
        socket.close();
        sslSocket.close();
    }
}

上面的代码得到下面的错误响应
HTTP/1.1 400 错误 X-Backside-Transport：失败失败内容类型：text/xml 连接：关闭

Answer 1

您已经在端口 44330 上与 XX.XX.XX.XX 建立了连接。接下来您需要像这样将此套接字传递给 SSLSocket

SSLSocketFactory factory =  (SSLSocketFactory)SSLSocketFactory.getDefault();
 SSLSocket sslSocket = (SSLSocket)factory.createSocket(socket, host, port, true);

然后您可以与网络服务器进行 SSL 握手

socket.startHandShake();

然后使用 printwriter 从 socketread/write

https://docs.oracle.com/javase/tutorial/networking/sockets/readingWriting.html

这里有完整的例子：

https://docs.oracle.com/javase/7/docs/technotes/guides/security/jsse/samples/sockets/client/SSLSocketClientWithTunneling.java

使用 org.apache.http.impl.client.ProxyClient 通过代理隧道访问 HTTPS Web 服务

Accessing HTTPS web services through proxy tunnel using org.apache.http.impl.client.ProxyClient

java

sockets

proxy

web-services

proxytunnel