HttpUnit WebConversation SSL Issues

Question

How can I ignore SSL certificate issues from the context of the WebConversation or WebRequest object? I know I can create a fake TrustManager that accepts all certificates but how can I set this in the HttpUnit context?

Here is the exception I am getting:

[Security:090508]Certificate chain received from my.domain.com - NUM.NUM.NUM.NUM was incomplete., 
[Security:090477]Certificate chain received from my.domain.com - NUM.NUM.NUM.NUM was not trusted causing SSL handshake failure. 

I need to somehow set the SSLSocket settings to the WebConversation or WebRequest object; looking at the JavaDocs for HttpUnit there is no such method or constructor to do so. Is there a way I can wrap this inside some object which has exposed SSLSocket properties?

Answer 1

According to this FAQ entry, it seems that HttpUnit is using the SSL implementation provided by the Java standard library. Writing and installing an "accept all" TrustManager is straightforward:

private static class AnyTrustManager implements X509TrustManager
{
    public void checkClientTrusted(X509Certificate[] chain, String authType)
    {
    }

    public void checkServerTrusted(X509Certificate[] chain, String authType)
    {
    }

    public X509Certificate[] getAcceptedIssuers()
    {
        return new X509Certificate[0];
    }
}

static {
    try {
        SSLContext ssl = SSLContext.getInstance("SSL");
        ssl.init(null, new X509TrustManager[] {new AnyTrustManager()}, null);
        HttpsURLConnection.setDefaultSSLSocketFactory(ssl.getSocketFactory());
    } catch (NoSuchAlgorithmException ex) {
        throw new Error(ex);
    } catch (KeyManagementException ex) {
        throw new Error(ex);
    }
}

However you should keep in mind that this code sample may need some modifications to work with HttpUnit (for instance if the library establishes the connections using a custom SocketFactory)

Since it seems that HttpUnit does not provide any API to set a custom SSLSocketFactry here is an alternative solution setting the default SSL context (Java 6 only)

static {
    try {
        SSLContext ssl = SSLContext.getDefault();
        ssl.init(null, new X509TrustManager[] {new AnyTrustManager()}, null);
    } catch (NoSuchAlgorithmException ex) {
        throw new Error(ex);
    } catch (KeyManagementException ex) {
        throw new Error(ex);
    }
}