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通过代理连接 Facebook 服务器时出错

发布于 2024-10-31 22:31:08 字数 7208 浏览 6 评论 0原文

我在从代理后面连接到 gtalk/facebook 服务器时遇到问题。在 doPost 下的登录servlet 中，我在与服务器建立连接之前指定了代理设置。代码如下：

package web;

import java.io.IOException;
import java.io.PrintWriter;

  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;

  import org.jivesoftware.smack.ConnectionConfiguration;
  import org.jivesoftware.smack.SASLAuthentication;
  import org.jivesoftware.smack.XMPPConnection;
  import org.jivesoftware.smack.XMPPException;
  import org.jivesoftware.smack.proxy.ProxyInfo;

  import dao.MySASLDigestMD5Mechanism;

   public class LoginFacebookServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

   public LoginFacebookServlet() {
    super();

  }
 XMPPConnection connection;
/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    String userName = request.getParameter("usrnm_fb");
    String password = request.getParameter("password_fb");

    response.setContentType("text/html");
    PrintWriter pw=response.getWriter();

    SASLAuthentication.registerSASLMechanism("DIGEST-MD5", MySASLDigestMD5Mechanism.class);
    //SASLAuthentication.supportSASLMechanism("DIGEST-MD5", 0);

  ProxyInfo proxyInfo = new ProxyInfo(ProxyInfo.ProxyType.HTTP,"proxy.xxx.com"  "talk.google.com",   port, "username", "password");
    ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222,proxyInfo);
    connection = new XMPPConnection(config);
   config.setSASLAuthenticationEnabled(true);
    try {
        connection.connect();
    } catch (XMPPException e) {
        e.printStackTrace();
    }
    try {
        connection.login(userName, password);
    } catch (XMPPException e) {
        e.printStackTrace();
    }
    System.out.println(connection.isAuthenticated());
   // System.out.println("Welcome!!you are now connected to facebook");
}

}

当我运行应用程序时，它仍然给我 500状态错误。以下是我检查的堆栈跟踪，

 XMPPError connecting to chat.facebook.com:5222.: remote-server-error(502) XMPPError      connecting to chat.facebook.com:5222.
  -- caused by: java.net.ConnectException: Connection timed out: connect
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:900)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1415)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Nested Exception: 
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at              org.jivesoftware.smack.proxy.DirectSocketFactory.createSocket(DirectSocketFactory.java:28)
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:888)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1415)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at       org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
 Apr 26, 2011 11:32:24 AM org.apache.catalina.core.StandardWrapperValve invoke
 SEVERE: Servlet.service() for servlet LoginFacebookServlet threw exception
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:382)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:349)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)

以查看是否有更多内容可以通过传递代理来添加，但我无法理解我哪里出错了？

谢谢：）

原文

I am having problems connecting to gtalk/facebook server from behind a proxy .In my loginservlet under doPost I specify the proxy settings before making a connection with the servers.The code is as follows:

package web;

import java.io.IOException;
import java.io.PrintWriter;

  import javax.servlet.ServletException;
  import javax.servlet.http.HttpServlet;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;

  import org.jivesoftware.smack.ConnectionConfiguration;
  import org.jivesoftware.smack.SASLAuthentication;
  import org.jivesoftware.smack.XMPPConnection;
  import org.jivesoftware.smack.XMPPException;
  import org.jivesoftware.smack.proxy.ProxyInfo;

  import dao.MySASLDigestMD5Mechanism;

   public class LoginFacebookServlet extends HttpServlet {
private static final long serialVersionUID = 1L;

   public LoginFacebookServlet() {
    super();

  }
 XMPPConnection connection;
/**
 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
 */
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    String userName = request.getParameter("usrnm_fb");
    String password = request.getParameter("password_fb");

    response.setContentType("text/html");
    PrintWriter pw=response.getWriter();

    SASLAuthentication.registerSASLMechanism("DIGEST-MD5", MySASLDigestMD5Mechanism.class);
    //SASLAuthentication.supportSASLMechanism("DIGEST-MD5", 0);

  ProxyInfo proxyInfo = new ProxyInfo(ProxyInfo.ProxyType.HTTP,"proxy.xxx.com"  "talk.google.com",   port, "username", "password");
    ConnectionConfiguration config = new ConnectionConfiguration("chat.facebook.com",5222,proxyInfo);
    connection = new XMPPConnection(config);
   config.setSASLAuthenticationEnabled(true);
    try {
        connection.connect();
    } catch (XMPPException e) {
        e.printStackTrace();
    }
    try {
        connection.login(userName, password);
    } catch (XMPPException e) {
        e.printStackTrace();
    }
    System.out.println(connection.isAuthenticated());
   // System.out.println("Welcome!!you are now connected to facebook");
}

}

When I run the application it still gives me 500 status error.Following is the stack trace

 XMPPError connecting to chat.facebook.com:5222.: remote-server-error(502) XMPPError      connecting to chat.facebook.com:5222.
  -- caused by: java.net.ConnectException: Connection timed out: connect
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:900)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1415)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
Nested Exception: 
java.net.ConnectException: Connection timed out: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.Socket.connect(Socket.java:529)
at java.net.Socket.connect(Socket.java:478)
at              org.jivesoftware.smack.proxy.DirectSocketFactory.createSocket(DirectSocketFactory.java:28)
at org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration(XMPPConnection.java:888)
at org.jivesoftware.smack.XMPPConnection.connect(XMPPConnection.java:1415)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:52)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at       org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)
 Apr 26, 2011 11:32:24 AM org.apache.catalina.core.StandardWrapperValve invoke
 SEVERE: Servlet.service() for servlet LoginFacebookServlet threw exception
java.lang.IllegalStateException: Not connected to server.
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:382)
at org.jivesoftware.smack.XMPPConnection.login(XMPPConnection.java:349)
at web.LoginFacebookServlet.doPost(LoginFacebookServlet.java:57)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
at java.lang.Thread.run(Thread.java:619)

I checked to see if any thing more was there to add for by passing proxy but am unable to understand as to where am I going wrong?

Thanks:)

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永不分离 2024-11-07 22:31:08

XMPP != HTTP 因此没有理由期望 XMPP 客户端将使用 HTTP 代理。然而，Smack 似乎添加了 HTTP 代理支持（除了之前的 SOCKS4 和 SOCKS5 代理支持）。 ConnectionConfiguration 可以接受 ProxyInfo 参数。

据我从 JavaDocs 可以看出，这就是您的需要做的事情：

ProxyInfo proxyInfo = new ProxyInfo(ProxyInfo.ProxyType.HTTP, "proxy.xxx.com", 8080, "username", "password")
ConnectionConfiguration config = new ConnectionConfiguration("facebook.com", 5222, proxyInfo);
XMPPConnection conn = new XMPPConnection(config);
conn.connect();

此外，对于将来的问题，请注意

  1. 虽然您的问题被标记为“Smack”，但您没有发布 Smack 特定代码。显示使用 URLConnection 的行毫无意义，因为这不是连接失败的地方。
  2. 您的问题标题指的是 Google Talk，但其他所有内容均指的是 Facebook。这是令人困惑和不明确的问题或代码，这不是您实际使用的代码，很可能会给您和其他成员带来挫败感。您应该尽可能发布 SSCCE。

XMPP != HTTP so there's no reason to expect that an HTTP proxy will be used by an XMPP client. However, it seems like Smack has added HTTP proxy support (in addition to SOCKS4 and SOCKS5 proxy support they had earlier). The ConnectionConfiguration can accept a ProxyInfo parameter.

As far as I can tell from the JavaDocs, this is what you need to do:

ProxyInfo proxyInfo = new ProxyInfo(ProxyInfo.ProxyType.HTTP, "proxy.xxx.com", 8080, "username", "password")
ConnectionConfiguration config = new ConnectionConfiguration("facebook.com", 5222, proxyInfo);
XMPPConnection conn = new XMPPConnection(config);
conn.connect();

Also, for future questions, please note

  1. Although your question is tagged 'Smack' you posted no Smack specific code. The lines showing use of the URLConnection are pointless since that's not where your connection is failing.
  2. Your question title indicates Google Talk, however everything else refers to Facebook. This is confusing and unclear questions or code that is NOT what you're actually working with will most likely lead to frustration for you and other members. As far as possible, you should post an SSCCE.
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