io.github.springboot.httpclient.auth.cifs.JCIFSEngine Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of spring-boot-starter-httpclient-security-ntlm Show documentation

Spring Boot starter for ntlm jcifs and httpClient integration

There is a newer version: 2.0.0

Show newest version

package io.github.springboot.httpclient.auth.cifs;

import java.io.IOException;

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

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

public final 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(final String domain, final 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());
	}

}