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。 所以我正在使用org.apache.http.impl.client.ProxyClient通过代理隧道连接到目标主机。 这给我返回了一个通过代理服务器连接到目标主机的套接字。 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。 但是我不知道如何通过套接字访问那些https服务。 下面是我的示例程序。 需要调用的服务的示例网址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();
    }
}

随着上面的代码得到下面的错误响应
HTTP / 1.1 400错误X后端传输：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，您需要将此套接字传递给SSLSocket，如下所示

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从套接字读取/写入

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

完整示例如下：

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