com.sitewhere.security.SitewhereAuthenticationProvider.java Source code

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Here is the source code for com.sitewhere.security.SitewhereAuthenticationProvider.java

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/*
 * $Id$
 * --------------------------------------------------------------------------------------
 * Copyright (c) Reveal Technologies, LLC. All rights reserved. http://www.reveal-tech.com
 *
 * The software in this package is published under the terms of the CPAL v1.0
 * license, a copy of which has been included with this distribution in the
 * LICENSE.txt file.
 */

package com.sitewhere.security;

import java.util.List;

import org.springframework.security.authentication.AuthenticationProvider;
import org.springframework.security.authentication.AuthenticationServiceException;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.AuthenticationException;

import com.sitewhere.server.SiteWhereServer;
import com.sitewhere.spi.SiteWhereException;
import com.sitewhere.spi.user.IGrantedAuthority;
import com.sitewhere.spi.user.IUser;

/**
 * Spring authentication provider backed by Atlas.
 * 
 * @author Derek
 */
public class SitewhereAuthenticationProvider implements AuthenticationProvider {

    /*
     * (non-Javadoc)
     * 
     * @seeorg.springframework.security.providers.AuthenticationProvider#authenticate(org.
     * springframework.security. Authentication)
     */
    public Authentication authenticate(Authentication input) throws AuthenticationException {
        try {
            if (input instanceof UsernamePasswordAuthenticationToken) {
                String username = (String) input.getPrincipal();
                String password = (String) input.getCredentials();
                IUser user = SiteWhereServer.getInstance().getUserManagement().authenticate(username, password);
                List<IGrantedAuthority> auths = SiteWhereServer.getInstance().getUserManagement()
                        .getGrantedAuthorities(user.getUsername());
                SitewhereUserDetails details = new SitewhereUserDetails(user, auths);
                return new SitewhereAuthentication(details, password);
            } else if (input instanceof SitewhereAuthentication) {
                return input;
            } else {
                throw new AuthenticationServiceException("Unknown authentication: " + input.getClass().getName());
            }
        } catch (SiteWhereException e) {
            throw new BadCredentialsException("Unable to authenticate.", e);
        }
    }

    /*
     * (non-Javadoc)
     * 
     * @see org.springframework.security.providers.AuthenticationProvider#supports(java.lang.Class)
     */
    @SuppressWarnings("rawtypes")
    public boolean supports(Class clazz) {
        return true;
    }
}