com.nimbusds.common.id.AuthzIdResolver Maven / Gradle / Ivy

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Common Connect2id software classes

There is a newer version: 3.4

package com.nimbusds.common.id;


import com.unboundid.ldap.sdk.*;

import java.text.ParseException;


/**
 * Resolves the authorisation identity (authzId) associated with a bind (auth) 
 * request.
 */
public class AuthzIdResolver {

	
	/**
	 * Resolves the authzId (user) of a simple bind request.
	 *
	 * @param bindRequest The bind request, must not be {@code null}.
	 *
	 * @return The authzId, {@code null} if it couldn't be resolved.
	 */
	public static AuthzId resolve(final SimpleBindRequest bindRequest) {
	
		if (bindRequest == null)
			throw new IllegalArgumentException("The bind request must not be null");
	
		DN user;
		
		try {
			user = new DN(bindRequest.getBindDN());
			
		} catch (LDAPException e ) {
		
			return null;
		}
		
		return new AuthzId(user);
	}
	
	
	/**
	 * Resolves the authzId (user) of a plain SASL bind request. If a
	 * target user is specified, the authorisation identity is returned,
	 * else the authentication identity.
	 *
	 * @param bindRequest The bind request, must not be {@code null}.
	 *
	 * @return The authzId, {@code null} if it couldn't be resolved.
	 */
	public static AuthzId resolve(final PLAINBindRequest bindRequest) {
	
		if (bindRequest == null)
			throw new IllegalArgumentException("The bind request must not be null");
		
		String user;
		
		if (bindRequest.getAuthorizationID() != null)
			user = bindRequest.getAuthorizationID();
		else
			user = bindRequest.getAuthenticationID();
			
		try {
			return AuthzId.parse(user);
		
		} catch (ParseException e) {
		
			return null;
		}
	}
	
	
	/**
	 * Resolves the authzId (user) of a bind request.
	 *
	 * @param bindRequest The bind request, must not be {@code null}.
	 *
	 * @return The authzId, {@code null} if it couldn't be resolved or the
	 *         bind request type is not supported.
	 */
	public static AuthzId resolve(final BindRequest bindRequest) {
	
		if (bindRequest == null)
			throw new IllegalArgumentException("The bind request must not be null");
		
		if (bindRequest instanceof SimpleBindRequest)
			return resolve((SimpleBindRequest)bindRequest);
			
		else if (bindRequest instanceof PLAINBindRequest)
			return resolve((PLAINBindRequest)bindRequest);
			
		else
			return null;
	}
	
	
	
	/**
	 * Public instantiation disabled.
	 */
	private AuthzIdResolver() {
	
		// empty
	}
}