AndroidHttpClient 需要更多信息。自签名 SSL。可能的？

Question

关于 AndroidHttpClient 的信息非常少，特别是我找不到任何好的例子。从我读到的内容来看——我可以使用这个客户端，它是为 SSL 预先配置的。我的目标是 2.2+，所以它很适合我。

1. 关于我如何使用它有什么好的示例吗？专用于 REST 服务 POST
2. 是否有关于如何允许自签名证书的示例？我不介意只允许任何证书而不是将特定证书导入本地商店。

谢谢!

我自己的回答(见下面的代码)。

1. 我有带自签名证书的 IIS 服务器。我不得不采取额外的步骤并生成与外部名称相匹配的证书，而不是服务器名称。
2. 我使用 AndroidHttpClient。据推测，此客户端具有适用于 Android 的所有“正确”设置，并从版本 8 开始支持
3. 我在 Application 对象中创建 AndroidHttpClient 并共享。
4. 我在注入(inject)自定义证书的地方分离了代码，以便以后很容易摆脱它。我注意到应用程序启动时确实需要一些时间才能从资源中加载证书。

我的应用单例版本。请参阅顶部的评论，其中包含有关我用来生成所有内容的命令行的详细信息。始终使用相同的密码以确保其有效。 PKS 文件密码必须匹配。

import android.net.http.AndroidHttpClient;
import android.app.Application;
import android.util.Log;
import idatt.mobile.android.providers.DBLog;
import org.apache.http.conn.ClientConnectionManager;
import org.apache.http.conn.scheme.Scheme;
import org.apache.http.conn.scheme.SchemeRegistry;
import org.apache.http.conn.ssl.SSLSocketFactory;

import java.io.InputStream;
import java.security.KeyStore;

/*
To generate PKS:
1. Created cert in IIS7 and then exported as pfx. Follow instruction on SelfSSL: http://www.robbagby.com/iis/self-signed-certificates-on-iis-7-the-easy-way-and-the-most-effective-way/
1a. Download tool: http://cid-3c8d41bb553e84f5.skydrive.live.com/browse.aspx/SelfSSL
1b. Run: SelfSSL /N:CN=mydomainname /V:1000 /S:1 /P:8081
 I use port 8081 on my server
1c. Export from IIS manager to cert.pfx
2. Run command line in SSL to convert file into X.509:
openssl pkcs12 -in C:\cert.pfx -out C:\cert.cer -nodes
3. Edit file and delete all except -----BEGIN.... END CERTIFICATE----- IMPORTANT! It was working when I got proper (5) amount of dashes and put tags and data on separate lines
4. use keytool. C:\Java\JDK\bcprov.jar was downloaded separately
 C:\Users\Ivan>keytool -import -v -trustcacerts -alias key_alias -file C:\cert.cer -keystore C:\mystore.bks -storetype BKS -provider org.bouncycastle.jce.provider.BouncyCastleProvider -providerpath C:\Java\JDK\bcprov.jar -storepass 123456

*/

public class MyApplication extends Application
{
    private static final String LOG_TAG = "MyApplication";
    private AndroidHttpClient androidHttpClient;

    @Override
    public void onCreate()
    {
        super.onCreate();
        androidHttpClient = createAndroidHttpClient();
    }

    @Override
    public void onLowMemory()
    {
        super.onLowMemory();
        shutdownAndroidHttpClient();
    }

    @Override
    public void onTerminate()
    {
        super.onTerminate();
        shutdownAndroidHttpClient();
    }


    private AndroidHttpClient createAndroidHttpClient()
    {
        Log.d(LOG_TAG,"createAndroidHttpClient");

        AndroidHttpClient client = AndroidHttpClient.newInstance("Android");

        //This is optional call to inject custom BKS that was created from self-signed certificate
        client = addCustomCertificate(client);

        return client;
    }

    public AndroidHttpClient getAndroidHttpClient()
    {
        return androidHttpClient;
    }

    private void shutdownAndroidHttpClient()
    {
        if(androidHttpClient!=null && androidHttpClient.getConnectionManager()!=null)
        {
            androidHttpClient.getConnectionManager().shutdown();
        }
    }

    private AndroidHttpClient addCustomCertificate(AndroidHttpClient client)
    {
        SSLSocketFactory sf = SSLSocketFactory.getSocketFactory();

        try
        {
            InputStream in = getResources().openRawResource(R.raw.home_server);

            KeyStore trustStore = KeyStore.getInstance("BKS");

            trustStore.load(in, "123456".toCharArray());
            in.close();

            sf = new SSLSocketFactory(trustStore);
            sf.setHostnameVerifier(SSLSocketFactory.STRICT_HOSTNAME_VERIFIER);
        }
        catch (Exception t)
        {
            DBLog.InsertError(this, t);
        }

        //Lets register our custom factory here
        client.getConnectionManager().getSchemeRegistry().register(new Scheme("https", sf, 443));

        return client;
    }
}

下面是我如何使用这个客户端(我在 AsyncTask 中调用它)

private String processPOST(String url, String requestData)
{
    String responseData = null;
    application = (MyApplication)getApplication();
    AndroidHttpClient client = application.getAndroidHttpClient();
    HttpPost request = new HttpPost(url);

    try
    {
        StringEntity entity = new StringEntity(requestData);
        entity.setContentType(new BasicHeader(HTTP.CONTENT_TYPE, "application/json"));
        request.setEntity(entity);
        ResponseHandler<String> handler = new BasicResponseHandler();
        responseData = client.execute(request, handler);
    }
    catch (Throwable e)
    {
        DBLog.InsertError(ctxt, e);
    }

    return responseData;
}

这个组合似乎 100% 在 2.2 和 2.3 设备上工作。当我将代码 fragment 与 DefaultHttpClient 一起使用时，我遇到了 2.3.1 请求超时问题 (Nexus S)

Answer 1

您可以使用 Apache HttpClient。

    public HttpClient getNewHttpClient() {
    try {
        KeyStore trustStore = KeyStore.getInstance("BKS");
        InputStream in = getResources().openRawResource(R.raw.mykeystore);
        try {
            trustStore.load(in, "mypassword".toCharArray());
        } finally {
            in.close();
        }

        SSLSocketFactory sf = new SSLSocketFactory(trustStore);
        sf.setHostnameVerifier(SSLSocketFactory.STRICT_HOSTNAME_VERIFIER);

        HttpParams params = new BasicHttpParams();
        HttpProtocolParams.setVersion(params, HttpVersion.HTTP_1_1);
        HttpProtocolParams.setContentCharset(params, HTTP.UTF_8);

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

        ClientConnectionManager ccm = new ThreadSafeClientConnManager(params, registry);
        return new DefaultHttpClient(ccm, params);
    } catch (Exception e) {
        return new DefaultHttpClient();
    }
}

在Web服务器中，IIS可以创建自签名证书并导出为PFX，然后使用openssl工具将其转换为PEM，将其编辑为conatin only证书，然后使用JDK和Bouncy CaSTLe的keytool创建包含证书的 keystore jar 。如上代码所示，可以将创建的 keystore 导入到您的项目中。