Httpclient Authentication Helper

What is it?

A library that helps authenticate Httpclient 3 with services that use NTLM, KERBEROS and SSL authentication.

The design goal is to be as simple as possible to use. The library uses default configurations that apply to 99% of the use cases, so that the developer wont have to concern himself with the details of his chosen authentication mechanism.

The project has 3 parts:

CredentialsUtils

• support NTLM v1 and NTLMv2 (httpclient3.x does not support NTLMv2 and supports NTLMv1 only with the JCFIS package )
• support KERBEROS without the need for any external configuration files (login.conf , krb.ini )
• support basic authenticaion
• route request through a proxy

SSLUtils

support SSL in 3 modes-

• trust all certificates (only for testing),
• trust JDK truststore (cacerts),
• trust your own custom truststore

AuthUtils

various tools

• logging for security
• adding cryptography providers
• use browser user agent
• handle gzipped response and more ...

How to use?

Example:

    /*
        Example A: connect to a service that requires NTLMv2 auth and has an expired self signed certificate
    */
        DefaultHttpClient httpclient = new DefaultHttpClient();
        SSLUtils.trustAllSSLCertificates();
        CredentialsUtils.setNTLMCredentials(client, new UsernamePasswordCredentials("xxx", "xxx"), "mydomain");
        client.executeMethod(httpget);

    /*
        Example B: Connect to a service  that requires KERBEROS auth
        , has a certificate that is trusted by the JDK trust store and accepts only browser user agents.
        Also, log the kerberos handshake
    */
        DefaultHttpClient httpclient = new DefaultHttpClient();
        AuthUtils.securityLogging(SecurityLogType.KERBEROS,true)
        SSLUtils.trustJDKDefaultSSLCertificates();
        AuthUtils.useBrowserUserAgent();
        CredentialsUtils.setKerberosCredentials(client, new UsernamePasswordCredentials("xxx", "xxx"), "domain", "kdc");
        client.executeMethod(httpget);

TODO's

support httpclient 4

open for suggestions

Developer

Dov Amir

[email protected]

License

Apache License Version 2.0, January 2004 http://www.apache.org/licenses/