/*
 * Copyright (c) 2002-2020 Manorrock.com. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright notice, 
 *      this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *   3. Neither the name of the copyright holder nor the names of its 
 *      contributors may be used to endorse or promote products derived from
 *      this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package cloud.piranha.security.soteria;

import static javax.security.enterprise.identitystore.CredentialValidationResult.Status.VALID;

import javax.enterprise.inject.spi.CDI;
import javax.security.enterprise.credential.Password;
import javax.security.enterprise.credential.UsernamePasswordCredential;
import javax.security.enterprise.identitystore.CredentialValidationResult;
import javax.security.enterprise.identitystore.IdentityStoreHandler;
import javax.servlet.http.HttpServletRequest;

import cloud.piranha.webapp.impl.DefaultAuthenticatedIdentity;
import cloud.piranha.webapp.api.AuthenticatedIdentity;
import cloud.piranha.webapp.api.SecurityManager.UsernamePasswordLoginHandler;

/**
 * @author Arjan Tijms
 */
public class IdentityStoreLoginHandler implements UsernamePasswordLoginHandler {

    @Override
    public AuthenticatedIdentity login(HttpServletRequest request, String username, String password) {

        CredentialValidationResult result = CDI.current()
           .select(IdentityStoreHandler.class)
           .get()
           .validate(new UsernamePasswordCredential(username, new Password(password)));

        if (result.getStatus() == VALID) {
            return new DefaultAuthenticatedIdentity(result.getCallerPrincipal(), result.getCallerGroups());
        }
        
        return null;
    }

}