schReg.register(new Scheme("https", SSLSocketFactory.getSocketFactory(), 443));

加入对HTTPS的支持，就可以有效的建立HTTPS连接了，例如“https://www.google.com.hk”了，但是访问自己基于Nginx搭建的HTTPS服务器却不行，因为它使用了不被系统承认的自定义证书，会报出如下问题：No peer certificate。

package com.example.photocrop;

import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;

import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;
import org.apache.http.conn.ssl.SSLSocketFactory;

public class MySSLSocketFactory extends SSLSocketFactory {
SSLContext sslContext = SSLContext.getInstance("TLS");

public MySSLSocketFactory(KeyStore truststore)
throws NoSuchAlgorithmException, KeyManagementException,
KeyStoreException, UnrecoverableKeyException {
super(truststore);
TrustManager tm = new X509TrustManager() {

@Override
public X509Certificate[] getAcceptedIssuers() {
return null;
}

@Override
public void checkServerTrusted(X509Certificate[] chain,
String authType) throws CertificateException {

}

@Override
public void checkClientTrusted(X509Certificate[] chain,
String authType) throws CertificateException {

}
};

sslContext.init(null, new TrustManager[] { tm }, null);
}

@Override
public Socket createSocket() throws IOException {
return sslContext.getSocketFactory().createSocket();
}

@Override
public Socket createSocket(Socket socket, String host, int port,
boolean autoClose) throws IOException, UnknownHostException {
return sslContext.getSocketFactory().createSocket(socket, host, port,
autoClose);
}

public static SSLSocketFactory getSocketFactory() {
try {
KeyStore trustStore = KeyStore.getInstance(KeyStore
.getDefaultType());
trustStore.load(null, null);
SSLSocketFactory factory = new MySSLSocketFactory(trustStore);
return factory;
} catch (Exception e) {
e.getMessage();
return null;
}
}
}

同时，需要修改DefaultHttpClient的register方法，改为自己构建的sslsocket：

public static HttpClient getCustomClient() {
BasicHttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
HttpProtocolParams.setUseExpectContinue(params, true);

SchemeRegistry schReg = new SchemeRegistry();
schReg.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schReg.register(new Scheme("https", MySSLSocketFactory.getSocketFactory(), 443));

ClientConnectionManager connMgr = new ThreadSafeClientConnManager(params, schReg);

return new DefaultHttpClient(connMgr, params);
}

这样就可以成功的访问自己构建的基于Nginx的HTTPS虚拟站点了。

不过，虽然这个方案使用了HTTPS，客户端和服务器端的通信内容得到了加密，嗅探程序无法得到传输的内容，但是无法抵挡“中间人攻击”。例如，在内网配置一个DNS，把目标服务器域名解析到本地的一个地址，然后在这个地址上使用一个中间服务器作为代理，它使用一个假的证书与客户端通讯，然后再由这个代理服务器作为客户端连接到实际的服务器，用真的证书与服务器通讯。这样所有的通讯内容都会经过这个代理，而客户端不会感知，这是由于客户端不校验服务器公钥证书导致的。

使用自定义证书建立HTTPS连接

package com.example.photocrop;

import java.io.IOException;
import java.io.InputStream;
import java.security.KeyManagementException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.UnrecoverableKeyException;

import org.apache.http.conn.ssl.SSLSocketFactory;

import android.content.Context;

public class CustomerSocketFactory extends SSLSocketFactory {

private static final String PASSWD = "pw123456";

public CustomerSocketFactory(KeyStore truststore)
throws NoSuchAlgorithmException, KeyManagementException,
KeyStoreException, UnrecoverableKeyException {
super(truststore);
}

public static SSLSocketFactory getSocketFactory(Context context) {
InputStream input = null;
try {
input = context.getResources().openRawResource(R.raw.example);
KeyStore trustStore = KeyStore.getInstance(KeyStore
.getDefaultType());

trustStore.load(input, PASSWD.toCharArray());

SSLSocketFactory factory = new CustomerSocketFactory(trustStore);

return factory;
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
if (input != null) {
try {
input.close();
} catch (IOException e) {
e.printStackTrace();
}
input = null;
}
}
}

}

public static HttpClient getSpecialKeyStoreClient(Context context) {
BasicHttpParams params = new BasicHttpParams();
HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
HttpProtocolParams.setContentCharset(params, HTTP.DEFAULT_CONTENT_CHARSET);
HttpProtocolParams.setUseExpectContinue(params, true);

SchemeRegistry schReg = new SchemeRegistry();
schReg.register(new Scheme("http", PlainSocketFactory.getSocketFactory(), 80));
schReg.register(new Scheme("https", CustomerSocketFactory.getSocketFactory(context), 443));

ClientConnectionManager connMgr = new ThreadSafeClientConnManager(params, schReg);

return new DefaultHttpClient(connMgr, params);
}

转自：http://www.tuicool.com/articles/6NvEZj

android httpClient 支持HTTPS的2种处理方式

转自http://my.oschina.net/blackylin/blog/144136

参考http://developer.android.com/training/articles/security-ssl.html#Concepts

http://www.ibm.com/developerworks/cn/java/j-lo-ssltls/

问题：

项目中Android https或http请求地址重定向为HTTPS的地址，相信很多人都遇到了这个异常(无终端认证)：
 javax.net.ssl.SSLPeerUnverifiedException: No peer certificate

解决过程：

1.没遇到过的问题，搜索吧，少年

log里出现这个异常，作者第一次遇到，不知道啥意思。看下字面意思，是ssl协议中没有终端认证。SSL?作者没用到ssl协议呀，只是通过httpClient请求一个重定向https的地址。
好吧，google下，知道了个差不多情况的帖子，http://www.eoeandroid.com/thread-161747-1-1.html。恩恩，一个不错的帖子，给出了个解决方案。照着来试下。添加个继承SSLSocketFactory的
自定义类。并在初始化httpclient支持https时，注册进去。看下面代码：

01 public class HttpClientHelper {
02
03     private static HttpClient httpClient;
04
05     private HttpClientHelper() {
06     }
07
08     public static synchronized HttpClient getHttpClient() {
09
10         if (null == httpClient) {
11             // 初始化工作
12             try {
13                 KeyStore trustStore = KeyStore.getInstance(KeyStore
14                         .getDefaultType());
15                 trustStore.load(null, null);
16                 SSLSocketFactory sf = new SSLSocketFactoryEx(trustStore);
17                 sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);  //允许所有主机的验证
18
19                 HttpParams params = new BasicHttpParams();
20
21                 HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
22                 HttpProtocolParams.setContentCharset(params,
23                         HTTP.DEFAULT_CONTENT_CHARSET);
24                 HttpProtocolParams.setUseExpectContinue(params, true);
25
26                 // 设置连接管理器的超时
27                 ConnManagerParams.setTimeout(params, 10000);
28                 // 设置连接超时
29                 HttpConnectionParams.setConnectionTimeout(params, 10000);
30                 // 设置socket超时
31                 HttpConnectionParams.setSoTimeout(params, 10000);
32
33                 // 设置http https支持
34                 SchemeRegistry schReg = new SchemeRegistry();
35                 schReg.register(new Scheme(“http”, PlainSocketFactory
36                         .getSocketFactory(), 80));
37                 schReg.register(new Scheme(“https”, sf, 443));
38
39                 ClientConnectionManager conManager = new ThreadSafeClientConnManager(
40                         params, schReg);
41
42                 httpClient = new DefaultHttpClient(conManager, params);
43             } catch (Exception e) {
44                 e.printStackTrace();
45                 return new DefaultHttpClient();
46             }
47         }
48         return httpClient;
49     }
50
51 }
52
53 class SSLSocketFactoryEx extends SSLSocketFactory {
54
55     SSLContext sslContext = SSLContext.getInstance(“TLS”);
56
57     public SSLSocketFactoryEx(KeyStore truststore)
58             throws NoSuchAlgorithmException, KeyManagementException,
59             KeyStoreException, UnrecoverableKeyException {
60         super(truststore);
61
62         TrustManager tm = new X509TrustManager() {
63
64             @Override
65             public java.security.cert.X509Certificate[] getAcceptedIssuers() {
66                 return null;
67             }
68
69             @Override
70             public void checkClientTrusted(
71                     java.security.cert.X509Certificate[] chain, String authType)
72                     throws java.security.cert.CertificateException {
73
74             }
75
76             @Override
77             public void checkServerTrusted(
78                     java.security.cert.X509Certificate[] chain, String authType)
79                     throws java.security.cert.CertificateException {
80
81             }
82         };
83
84         sslContext.init(null, new TrustManager[] { tm }, null);
85     }
86
87     @Override
88     public Socket createSocket(Socket socket, String host, int port,
89             boolean autoClose) throws IOException, UnknownHostException {
90         return sslContext.getSocketFactory().createSocket(socket, host, port,
91                 autoClose);
92     }
93
94     @Override
95     public Socket createSocket() throws IOException {
96         return sslContext.getSocketFactory().createSocket();
97     }
98 }

ok，run下，狂乱的点到测试按钮，深吸口气，盯着eclipse中的logat。咦？神奇的竟然没有报之前的 javax.net.ssl.SSLPeerUnverifiedException: No peer certificate的异常了。服务端的数据正常返回了。,狂喜中…

2.了解并分析问题

狂喜中，得分析这问题诶。不然老大来问，啥情况？楞半天不知道咋说（作者就经常这样，所以吸取教训。所以的弄懂出现的问题，学习+汇报工作）。
思来想去，就是作者请求的是一个重定向https的地址。好吧，那就学习下https（之前被老大深深的教过，http就是request/response）。继续搜索吧，少年。下面总结下学习到的https知识。

2.1 https

HTTPS:超文本安全传输协议，和HTTP相比，多了一个SSL/TSL的认证过程，端口为443。（鄙视下之前说的)

作者没用到ssl协议呀，只是通过httpClient请求一个重定向https的地址

1.peer终端发送一个request，https服务端把支持的加密算法等以证书的形式返回一个身份信息（包含ca颁发机构和加密公钥等）。

2.获取证书之后，验证证书合法性。

3.随机产生一个密钥，并以证书当中的公钥加密。

4.request https服务端，把用公钥加密过的密钥传送给https服务端。

5.https服务端用自己的密钥解密，获取随机值。

6.之后双方传送数据都用此密钥加密后通信。

看下面一张网上的得来的https的时序图：

2.2分析下出现问题的原因

好吧，大概的流程知道了。定位已经非常清楚了。在第2步验证证书时，无法验证。为啥无法验证呢？没有添加信任。详细参考下

http://www.cnblogs.com/P_Chou/archive/2010/12/27/https-ssl-certification.html讲的非常清楚https-ssl的认证过程，膜拜下该作者

这样想来，上面提供的解决方案就是添加默认信任全部证书。以此来通过接下来的通信。

3.解决问题

但是，这样问题是解决了。但是觉得还是不带靠谱（信任全部证书有点危险）。继续噼噼啪啪的网上搜索一番。又找到了一种解决方案，其过程大致这样的：

1.浏览器访问https地址，保存提示的证书到本地，放到android项目中的assets目录。

2.导入证书，代码如下。

3.把证书添加为信任。
01 String requestHTTPSPage(String mUrl) {
02         InputStream ins = null;
03         String result = “”;
04         try {
05             ins = context.getAssets().open(“app_pay.cer”); //下载的证书放到项目中的assets目录中
06             CertificateFactory cerFactory = CertificateFactory
07                     .getInstance(“X.509”);
08             Certificate cer = cerFactory.generateCertificate(ins);
09             KeyStore keyStore = KeyStore.getInstance(“PKCS12”, “BC”);
10             keyStore.load(null, null);
11             keyStore.setCertificateEntry(“trust”, cer);
12
13             SSLSocketFactory socketFactory = new SSLSocketFactory(keyStore);
14             Scheme sch = new Scheme(“https”, socketFactory, 443);
15             HttpClient mHttpClient = new DefaultHttpClient();
16             mHttpClient.getConnectionManager().getSchemeRegistry()
17                     .register(sch);
18
19             BufferedReader reader = null;
20             try {
21                 Log.d(TAG, “executeGet is in,murl:” + mUrl);
22                 HttpGet request = new HttpGet();
23                 request.setURI(new URI(mUrl));
24                 HttpResponse response = mHttpClient.execute(request);
25                 if (response.getStatusLine().getStatusCode() != 200) {
26                     request.abort();
27                     return result;
28                 }
29
30                 reader = new BufferedReader(new InputStreamReader(response
31                         .getEntity().getContent()));
32                 StringBuffer buffer = new StringBuffer();
33                 String line = null;
34                 while ((line = reader.readLine()) != null) {
35                     buffer.append(line);
36                 }
37                 result = buffer.toString();
38                 Log.d(TAG, “mUrl=” + mUrl + “\nresult = ” + result);
39             } catch (Exception e) {
40                 e.printStackTrace();
41             } finally {
42                 if (reader != null) {
43                     reader.close();
44                 }
45             }
46         } catch (Exception e) {
47             // TODO: handle exception
48         } finally {
49             try {
50                 if (ins != null)
51                     ins.close();
52             } catch (IOException e) {
53                 e.printStackTrace();
54             }
55         }
56         return result;
57     }
接着，验证下呗。吼吼，稀里糊涂的又可以了。感动的泪流满面。

最后总结：

2种方法都解决了作者遇到的问题，这里记录下。以防下次遇到，希望能给遇到相同问题朋友有所参考帮助。

转自：http://blog.csdn.net/lihenair/article/details/17441169

Android 实现 HttpClient 请求Https

如题，默认下，HttpClient是不能请求Https的，需要自己获取