org.geonode.security.GeoNodeAuthenticationProvider.java Source code

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Here is the source code for org.geonode.security.GeoNodeAuthenticationProvider.java

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/* Copyright (c) 2001 - 2007 TOPP - www.openplans.org. All rights reserved.
 * This code is licensed under the GPL 2.0 license, availible at the root
 * application directory.
 */
package org.geonode.security;

import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import org.geoserver.security.GeoServerAuthenticationProvider;
import org.geoserver.security.impl.GeoServerUser;

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

/**
 * An {@link AuthenticationProvider} provider passing the username/password to GeoNode for
 * authentication
 * 
 * @author Andrea Aime - OpenGeo
 * 
 */
public class GeoNodeAuthenticationProvider extends GeoServerAuthenticationProvider {

    private GeoNodeSecurityClient client;

    public GeoNodeAuthenticationProvider(GeoNodeSecurityClient client) {
        this.client = client;
    }

    @Override
    public Authentication authenticate(Authentication authentication, HttpServletRequest request)
            throws AuthenticationException {
        this.client.setRequestUrl("http://" + request.getServerName() + "/");
        if (authentication instanceof UsernamePasswordAuthenticationToken) {
            UsernamePasswordAuthenticationToken token = (UsernamePasswordAuthenticationToken) authentication;
            String username = token.getName();
            String password = (String) token.getCredentials();

            // ignore this - let the other provider(s) handle things
            if (GeoServerUser.ROOT_USERNAME.equals(username)
                    && GeoServerUser.DEFAULT_ADMIN_PASSWD.equals(username)) {
                return null;
            }

            try {
                if (username == "" && password == null) {
                    return client.authenticateAnonymous();
                } else {
                    // if an anonymous session cookie exists in the request but
                    // the user is logging in via the admin or other form mechanism,
                    // it's possible that the GeoNodeCookieProcessingFilter will
                    // 'overwrite' the credentials... it will check for this
                    Authentication auth = client.authenticateUserPwd(username, password);
                    if (auth.isAuthenticated()) {
                        SecurityContextHolder.getContext().setAuthentication(auth);
                    }
                    return auth;
                }
            } catch (IOException e) {
                throw new AuthenticationServiceException(
                        "Communication with GeoNode failed (UsernamePasswordAuthenticationToken)", e);
            }
        } else if (authentication instanceof GeoNodeSessionAuthToken) {
            try {
                return client.authenticateCookie((String) authentication.getCredentials());
            } catch (IOException e) {
                throw new AuthenticationServiceException(
                        "Communication with GeoNode failed (GeoNodeSessionAuthToken)", e);
            }
        } else if (authentication instanceof AnonymousGeoNodeAuthenticationToken) {
            try {
                return client.authenticateAnonymous();
            } catch (IOException e) {
                throw new AuthenticationServiceException(
                        "Communication with GeoNode failed (AnonymousGeoNodeAuthenticationToken)", e);
            }
        } else {
            throw new IllegalArgumentException(
                    "GeoNodeAuthenticationProvider accepts only UsernamePasswordAuthenticationToken and GeoNodeSessionAuthToken; received "
                            + authentication);
        }
    }

    @Override
    public boolean supports(Class<? extends Object> authentication, HttpServletRequest request) {
        return (UsernamePasswordAuthenticationToken.class.isAssignableFrom(authentication)
                || GeoNodeSessionAuthToken.class.isAssignableFrom(authentication))
                || AnonymousGeoNodeAuthenticationToken.class.isAssignableFrom(authentication);
    }

    /**
     * 
     * @param client
     */
    public void setClient(GeoNodeSecurityClient client) {
        this.client = client;
    }

}