ti.ntlm.JCIFSEngine.java Source code

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Here is the source code for ti.ntlm.JCIFSEngine.java

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/**
 * Ti.Ntlm Module
 * Copyright (c) 2013 by Appcelerator, Inc. All Rights Reserved.
 * Please see the LICENSE included with this distribution for details.
 */

package ti.ntlm;

import java.io.IOException;

import jcifs.ntlmssp.NtlmFlags;
import jcifs.ntlmssp.Type1Message;
import jcifs.ntlmssp.Type2Message;
import jcifs.ntlmssp.Type3Message;
import jcifs.util.Base64;

import org.apache.http.impl.auth.NTLMEngine;
import org.apache.http.impl.auth.NTLMEngineException;

public class JCIFSEngine implements NTLMEngine {

    private static final int TYPE_1_FLAGS = NtlmFlags.NTLMSSP_NEGOTIATE_56 | NtlmFlags.NTLMSSP_NEGOTIATE_128
            | NtlmFlags.NTLMSSP_NEGOTIATE_NTLM2 | NtlmFlags.NTLMSSP_NEGOTIATE_ALWAYS_SIGN
            | NtlmFlags.NTLMSSP_REQUEST_TARGET;

    @Override
    public String generateType1Msg(String domain, String workstation) throws NTLMEngineException {

        final Type1Message type1Message = new Type1Message(TYPE_1_FLAGS, domain, workstation);
        return Base64.encode(type1Message.toByteArray());
    }

    @Override
    public String generateType3Msg(final String username, final String password, final String domain,
            final String workstation, final String challenge) throws NTLMEngineException {

        Type2Message type2Message;
        try {
            type2Message = new Type2Message(Base64.decode(challenge));
        } catch (final IOException exception) {
            throw new NTLMEngineException("Invalid NTLM type 2 message", exception);
        }
        final int type2Flags = type2Message.getFlags();
        final int type3Flags = type2Flags
                & (0xffffffff ^ (NtlmFlags.NTLMSSP_TARGET_TYPE_DOMAIN | NtlmFlags.NTLMSSP_TARGET_TYPE_SERVER));
        final Type3Message type3Message = new Type3Message(type2Message, password, domain, username, workstation,
                type3Flags);
        return Base64.encode(type3Message.toByteArray());
    }

}