证书处理：apache httpclient 4.0.1 和 4.1.2 之间的区别？

Question

我尝试连接到使用证书的服务器。我在连接之前调用此代码以确保所有证书都被接受。使用 apache httpclient 4.0.1 效果很好。但最近我更新到 4.1.2，现在出现以下错误。

import java.security.KeyManagementException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;

public class CertificateAcceptor {

    public void initializeTrustManager() {
        try {
            SSLContext context = SSLContext.getInstance("SSL");
            context.init(null, trustAllCerts, new SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());
            System.out.println("Certificate");
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }
    }

    TrustManager[] trustAllCerts = new TrustManager[] {
            new X509TrustManager() {
                   public X509Certificate[] getAcceptedIssuers() {
                       return null;
                   }

                @Override
                public void checkClientTrusted(X509Certificate[] chain,
                        String authType) throws CertificateException {
                    // TODO Auto-generated method stub

                }

                @Override
                public void checkServerTrusted(X509Certificate[] chain,
                        String authType) throws CertificateException {
                    // TODO Auto-generated method stub

                }

            }
            };


}

尽管如此，我总是收到此错误消息：

javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated
    at com.sun.net.ssl.internal.ssl.SSLSessionImpl.getPeerCertificates(Unknown Source)
    at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:128)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:397)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:148)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:149)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:121)
    at org.apache.http.impl.client.DefaultRequestDirector.tryConnect(DefaultRequestDirector.java:573)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:425)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:820)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:754)..
...

这可能是什么原因？

Answer 1

4.1 版之前的 Apache HttpClient 过去常常错误地从 javax.net.ssl.HttpsURLConnection 获取默认 SSL 设置。从 4.1 版本开始，情况不再如此。

请使用 HttpClient 本机 API 为 HTTPS 连接配置 SSL 上下文。