忽略Apache HTTPClient 4.5中的自签名证书

Question

我试图接受所有证书,和/或使用Apache HTTPClient 4.5版接受自签名证书(这里的教程链接)

我已经从SO上的一堆帖子中解决了这个问题.到目前为止,他们都没有工作过.

我一直收到这个错误: Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

Apache文档:

• Apache v4.5教程
• SSL/TLS定制
• Apache有版本3 的指南,但不是版本4.

相关的StackOverflow问题 - 以下是我尝试过的解决方案的一些链接:

• 忽略Apache HttpClient 4.3中的SSL证书
• 如何忽略Apache HttpClient 4.0中的SSL证书错误
• 使用Java忽略SSL证书错误
• 使用Spring开发期间需要信任所有证书
• 如何使用Apache HttpClient处理无效的SSL证书？

请注意,在所有这些示例中,我还传递了我之前定义的cookie存储和代理凭据提供程序.这些都在工作,我只是想添加SSL支持.

试试#1

使用创建我自己的ssl上下文SSLContextBuilder并信任所有自签名策略TrustSelfSignedStrategy.

SSLContextBuilder sshbuilder = new SSLContextBuilder();
sshbuilder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(sshbuilder.build());

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .build();

结果:没有用.拿到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

试试#2

与上面相同,但添加一个 PoolingHttpClientConnectionManager

SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustSelfSignedStrategy());
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build(),SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory>create()
        .register("http", new PlainConnectionSocketFactory())
        .register("https", sslsf)
        .build();
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(registry);
cm.setMaxTotal(2000);//max connection

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .setConnectionManager(cm)
    .build();

结果:没有用.拿到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

试试#3

只需通过覆盖TrustStrategy(不建议这样做)接受所有证书

SSLContextBuilder builder = new SSLContextBuilder();
builder.loadTrustMaterial(null, new TrustStrategy() {
    @Override
    public boolean isTrusted(X509Certificate[] chain, String authType) throws CertificateException {
        return true;
    }
});
SSLConnectionSocketFactory sslsf = new SSLConnectionSocketFactory(builder.build(),
    SSLConnectionSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);

CloseableHttpClient httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslsf)
    .build();

结果:没有用.拿到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

试试#4

我发现有用的东西,从这个答案:

从版本4.5开始,HttpClient默认禁用SSLv3协议版本

这是他给出的解决方案:

SSLContext sslcontext = SSLContexts.createSystemDefault();
SSLConnectionSocketFactory sslConnectionSocketFactory = new SSLConnectionSocketFactory(
        sslcontext, new String[] { "TLSv1", "SSLv3" }, null,
        SSLConnectionSocketFactory.getDefaultHostnameVerifier());

Registry<ConnectionSocketFactory> socketFactoryRegistry = RegistryBuilder.<ConnectionSocketFactory>create()
        .register("http", PlainConnectionSocketFactory.INSTANCE)
        .register("https", sslConnectionSocketFactory)
        .build();
PoolingHttpClientConnectionManager cm = new PoolingHttpClientConnectionManager(socketFactoryRegistry);

httpclient = HttpClients.custom()
    .setDefaultCredentialsProvider(credsProvider)
    .setDefaultCookieStore(cookieStore)
    .setSSLSocketFactory(sslConnectionSocketFactory)
    .setConnectionManager(cm)
    .build();

结果:没有用.拿到Error while trying to execute request. javax.net.ssl.SSLHandshakeException: Remote host closed connection during handshake

Answer 1

我使用Apache HttpClient 4.5.3并且上述解决方案都没有帮助.我总是得到错误

PKIX路径构建失败

.

我在http://www.baeldung.com/httpclient-ssl找到了解决方案

这是我的代码:

try {
    SSLContext sslContext = new SSLContextBuilder()
            .loadTrustMaterial(null, (certificate, authType) -> true).build();
    httpClient = HttpClients.custom().setSSLContext(sslContext)
            .setSSLHostnameVerifier(new NoopHostnameVerifier())
            .build();
} catch (NoSuchAlgorithmException | KeyManagementException | KeyStoreException e) {
    e.printStackTrace();
}

Answer 2

很多时候，您不仅需要支持自签名证书，而且还需要调用多线程请求，因此需要使用池连接管理器。这是我的方法：

private CloseableHttpClient newClient() throws KeyManagementException, NoSuchAlgorithmException, KeyStoreException {
    SSLContext context = SSLContexts.custom()
            .loadTrustMaterial(TrustSelfSignedStrategy.INSTANCE)
            .build();

    Registry<ConnectionSocketFactory> registry = RegistryBuilder.<ConnectionSocketFactory> create()
            .register("http", PlainConnectionSocketFactory.INSTANCE)
            .register("https", new SSLConnectionSocketFactory(context, NoopHostnameVerifier.INSTANCE))
            .build();

    PoolingHttpClientConnectionManager connectionManager = new PoolingHttpClientConnectionManager(registry);

    return HttpClients.custom()
            .setConnectionManager(connectionManager)
            .build();
}

Answer 3

上述方法之一应该适用于自签名证书，但奇怪的是您在所有方法中都会遇到相同的异常。

我觉得在 SSL 会话建立或握手协议期间，客户端或服务器都没有接受。

这里最好的解决方案是调试应用程序。

如果是tomcat，请在setenv.sh或setenv.bat文件中添加-Djavax.net.debug=all，然后重新启动服务器。

或者您可以按照本教程进行操作。

OP 只需要在连接 SSL 时更改端口：

//For HTTPS
HttpHost httpstarget = new HttpHost("mysite.com", 443, "https");

//For HTTP
HttpHost httptarget = new HttpHost("mysite.com", 80, "http");