org.atomsphere.management.authentication.AuthenticationUtils.java Source code

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Here is the source code for org.atomsphere.management.authentication.AuthenticationUtils.java

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/**
 * Atomsphere is an enterprise mobile application server.
 * Copyright (C) 2011 JatakaSource Ltd.
 *
 * it under the terms of the GNU Lesser General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * Atomsphere is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with Atomsphere.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.atomsphere.management.authentication;

import java.util.ArrayList;
import java.util.Collection;

import org.apache.commons.codec.binary.Base64;
import org.atomsphere.management.model.authentication.User;
import org.springframework.security.authentication.encoding.MessageDigestPasswordEncoder;
import org.springframework.security.authentication.encoding.ShaPasswordEncoder;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.core.authority.SimpleGrantedAuthority;
import org.springframework.security.core.context.SecurityContextHolder;

public class AuthenticationUtils {

    private static final String ROLE_ADMIN = "ROLE_ADMIN";
    private static final String ROLE_USER = "ROLE_USER";
    public static final int SLAT_SIZE = 10;

    /**
     * Accepts list of Roles and return array[] of ACEGI GrantedAuthorityImpl
     */
    public static Collection<GrantedAuthority> toGrantedAuthority(User user) {
        if (user.getAuthorities() != null && user.getAuthorities().size() > 0) {
            return user.getAuthorities();
        }

        Collection<GrantedAuthority> grantedAuthorities = new ArrayList<GrantedAuthority>();

        if (user.isAdministrator()) {
            grantedAuthorities.add(new SimpleGrantedAuthority(ROLE_ADMIN));
        } else {
            grantedAuthorities.add(new SimpleGrantedAuthority(ROLE_USER));
        }

        return grantedAuthorities;
    }

    public static Authentication getAuthentication() {
        return SecurityContextHolder.getContext().getAuthentication();
    }

    // Print password example (use this method when adding new user to csv) 
    public static void main(String[] args) {
        MessageDigestPasswordEncoder encoder = new ShaPasswordEncoder();
        encoder.setEncodeHashAsBase64(true);
        System.out.println(encoder.encodePassword("password", "?"));

        basicAuthentication();
    }

    /**
     * Output for basic authentication password, -H example 
     * -H "Authorization: Basic YWRtaW46cGFzc3dvcmQ="
     */
    public static void basicAuthentication() {
        String credentials = String.format("%s:%s", "admin", "password");
        byte[] authEncBytes = Base64.encodeBase64(credentials.getBytes());
        String authStringEnc = new String(authEncBytes);

        System.out.println(authStringEnc);
    }
}