Android - 如何使用 HttpClient 接受任何证书并同时传递证书

发布于 2024-12-06 13:12:27 字数 2980 浏览 1 评论 0原文

我有一个场景,我必须将证书传递给我的服务器,然后服务器向我发送他的证书,我必须接受该证书才能访问服务器。我为此使用 HttpURLConnection ,没有任何问题。

但是,我最近遇到了 HttpURLConnection 的问题。我使用的代码从 HTTPS 服务器检索图像。如果图像很小(< 500kb),则不会出现任何问题。然而,对于较大的图像,我得到了这个:

javax.net.ssl.SSLProtocolException: Read error: ssl=0x3c97e8: Failure in SSL library, 通常是一个协议错误

我在互联网上读到了有关它的信息,很多人说使用 HttpClient 代替HttpURLConnection 是可行的方法(一个例子是这个网站 http://soan.tistory.com/62 ,认为这是用韩语写的,我看不懂,但我认为它就是这么说的)。

这是我的旧代码,使用 URLConnection:

    public static URLConnection CreateFromP12(String uri, String keyFilePath,
        String keyPass, TrustManager[] trustPolicy, HostnameVerifier hv) {
    try {

        SSLContext sslContext = SSLContext.getInstance("TLS");
        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509");

        keyStore.load(new FileInputStream(keyFilePath),
                keyPass.toCharArray());

        kmf.init(keyStore, keyPass.toCharArray());
        sslContext.init(kmf.getKeyManagers(), trustPolicy, null);

        HttpsURLConnection.setDefaultSSLSocketFactory(sslContext
                .getSocketFactory());
        HttpsURLConnection.setDefaultHostnameVerifier(hv);
    } catch (Exception ex) {
        return null;
    }

    URL url;
    URLConnection conn;
    try {
        url = new URL(uri);
        conn = url.openConnection();
    } catch (MalformedURLException e) {
        return null;
    } catch (IOException e) {
        return null;
    }

    return conn;
}

这是新代码,使用 HttpClient:

public class HttpC2Connection {

public static HttpEntity CreateHttpEntityFromP12(String uri,
        String keyFilePath, String keyPass) throws Exception {

    KeyStore keyStore = KeyStore.getInstance("PKCS12");
    keyStore.load(new FileInputStream(keyFilePath), keyPass.toCharArray());

    SSLSocketFactory sf = new MySSLSocketFactory(keyStore);
    sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_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("https", sf, 443));

    ClientConnectionManager ccm = new ThreadSafeClientConnManager(params,
            registry);

    HttpClient httpclient = new DefaultHttpClient(ccm, params);
    HttpGet httpget = new HttpGet(uri);
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();

    return entity;
}

但现在,使用 HttpClient,我的服务器返回一个错误,说我必须通过证书,所以我猜这

SSLSocketFactory sf = new MySSLSocketFactory(keyStore); 

没有加载我的证书。

那么,我怎样才能同时做以下两件事:

1.)将证书传递到我的服务器; 2.)

使用 HttpClient 类接受来自我的服务器的任何证书吗?

PS:我使用的是Android 3.0

谢谢

I have a scenario in which I must pass a certficate to my server, then the server sends me his certificate, which I must accept to access the server. I was using HttpURLConnection for this, with no problems.

However, I recently had a problem with HttpURLConnection. The code I was using retrieved an image from a HTTPS server. If the image was small (< 500kb), no problem whatsoever occured. However, with larger images I got this:

javax.net.ssl.SSLProtocolException: Read error: ssl=0x3c97e8: Failure in SSL library, usually a protocol error

I was reading about it on the Internet, and many people said that using HttpClient instead of HttpURLConnection was the way to go (an example is this site http://soan.tistory.com/62 , think that is written in korean, I can't read it but that's what I think it says).

This is my old code, using URLConnection:

    public static URLConnection CreateFromP12(String uri, String keyFilePath,
        String keyPass, TrustManager[] trustPolicy, HostnameVerifier hv) {
    try {

        SSLContext sslContext = SSLContext.getInstance("TLS");
        KeyStore keyStore = KeyStore.getInstance("PKCS12");
        KeyManagerFactory kmf = KeyManagerFactory.getInstance("X509");

        keyStore.load(new FileInputStream(keyFilePath),
                keyPass.toCharArray());

        kmf.init(keyStore, keyPass.toCharArray());
        sslContext.init(kmf.getKeyManagers(), trustPolicy, null);

        HttpsURLConnection.setDefaultSSLSocketFactory(sslContext
                .getSocketFactory());
        HttpsURLConnection.setDefaultHostnameVerifier(hv);
    } catch (Exception ex) {
        return null;
    }

    URL url;
    URLConnection conn;
    try {
        url = new URL(uri);
        conn = url.openConnection();
    } catch (MalformedURLException e) {
        return null;
    } catch (IOException e) {
        return null;
    }

    return conn;
}

And this is the new one, using HttpClient:

public class HttpC2Connection {

public static HttpEntity CreateHttpEntityFromP12(String uri,
        String keyFilePath, String keyPass) throws Exception {

    KeyStore keyStore = KeyStore.getInstance("PKCS12");
    keyStore.load(new FileInputStream(keyFilePath), keyPass.toCharArray());

    SSLSocketFactory sf = new MySSLSocketFactory(keyStore);
    sf.setHostnameVerifier(SSLSocketFactory.ALLOW_ALL_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("https", sf, 443));

    ClientConnectionManager ccm = new ThreadSafeClientConnManager(params,
            registry);

    HttpClient httpclient = new DefaultHttpClient(ccm, params);
    HttpGet httpget = new HttpGet(uri);
    HttpResponse response = httpclient.execute(httpget);
    HttpEntity entity = response.getEntity();

    return entity;
}

But now, using HttpClient, my server returns me an error saying that I must pass a certificate, so I guess that

SSLSocketFactory sf = new MySSLSocketFactory(keyStore); 

isn't loading my certificate.

So, how can I do the following two things at the same time:

1.) Pass a certificate to my server;
2.) Accept any certificate from my server

Using the HttpClient class?

PS: I'm using Android 3.0

Thanks

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评论(2

一萌ing 2024-12-13 13:12:28

以下代码禁用对任何新 HttpsUrlConnection 实例的 SSL 证书检查:

https://gist.github.com/aembleton /889392

/**
 * Disables the SSL certificate checking for new instances of {@link HttpsURLConnection} This has been created to
 * aid testing on a local box, not for use on production.
 */
private static void disableSSLCertificateChecking() {
    TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        @Override
        public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }

        @Override
        public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }
    } };

    try {
        SSLContext sc = SSLContext.getInstance("TLS");

        sc.init(null, trustAllCerts, new java.security.SecureRandom());

        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
}

The following code disables SSL certificate checking for any new instances of HttpsUrlConnection:

https://gist.github.com/aembleton/889392

/**
 * Disables the SSL certificate checking for new instances of {@link HttpsURLConnection} This has been created to
 * aid testing on a local box, not for use on production.
 */
private static void disableSSLCertificateChecking() {
    TrustManager[] trustAllCerts = new TrustManager[] { new X509TrustManager() {
        public X509Certificate[] getAcceptedIssuers() {
            return null;
        }

        @Override
        public void checkClientTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }

        @Override
        public void checkServerTrusted(X509Certificate[] arg0, String arg1) throws CertificateException {
            // Not implemented
        }
    } };

    try {
        SSLContext sc = SSLContext.getInstance("TLS");

        sc.init(null, trustAllCerts, new java.security.SecureRandom());

        HttpsURLConnection.setDefaultSSLSocketFactory(sc.getSocketFactory());
    } catch (KeyManagementException e) {
        e.printStackTrace();
    } catch (NoSuchAlgorithmException e) {
        e.printStackTrace();
    }
}
留一抹残留的笑 2024-12-13 13:12:28

不要只接受任何证书。 不要使用自制的会损害安全性的SSLSocketFactory。使用 SDK 中的 SSLSocketFactory 并传递信任存储(包含服务器证书或颁发它的 CA 证书)和密钥存储(包含您的客户端证书和私钥)。您可以使用 this 构造函数来实现这一点,JavaDoc 有关于如何创建密钥存储的详细信息。

Don't just accept any certificates. Don't use home-made SSLSocketFactory's that compromise security. Use the SSLSocketFactory from the SDK, and pass both a trust store (containing the server certificate or the CA certificate that issued it) and a keystore (containing your client certificate and private key). You can use this constructor to achieve this, the JavaDoc has details on how to create the key stores.

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