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

Question

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。我为此使用了 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，对于更大的图像，我得到了这个:

javax.net.ssl.SSLProtocolException: Read error: ssl=0x3c97e8: Failure in SSL library, 通常是协议(protocol)错误

我在 Internet 上看到它，很多人说使用 HttpClient 而不是 HttpURLConnection 是可行的方法(一个例子是这个网站 http://soan.tistory.com/62，认为它是用韩语写的，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;
}

这是新的，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;
}

但是现在，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

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.) 接受来 self 的服务器的任何证书

使用 HttpClient 类？

PS:我用的是安卓3.0

谢谢

Answer 1

以下代码禁用对 HttpsUrlConnection 的任何新实例的 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();
    }
}