edu.usu.sdl.openstorefront.security.HeaderRealm.java Source code

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Here is the source code for edu.usu.sdl.openstorefront.security.HeaderRealm.java

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/*
 * Copyright 2014 Space Dynamics Laboratory - Utah State University Research Foundation.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package edu.usu.sdl.openstorefront.security;

import edu.usu.sdl.openstorefront.service.ServiceProxy;
import edu.usu.sdl.openstorefront.storage.model.UserProfile;
import edu.usu.sdl.openstorefront.util.SecurityUtil;
import org.apache.commons.lang3.StringUtils;
import org.apache.shiro.authc.AuthenticationException;
import org.apache.shiro.authc.AuthenticationInfo;
import org.apache.shiro.authc.AuthenticationToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

/**
 * This is used to login based on Request Header info
 *
 * @author dshurtleff
 */
public class HeaderRealm extends AuthorizingRealm {

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        UserContext userContext = (UserContext) principals.getPrimaryPrincipal();
        HeaderAuthToken headerAuthToken = new HeaderAuthToken();
        headerAuthToken.setUserContext(userContext);
        return populateAccount(headerAuthToken);
    }

    @Override
    public boolean supports(AuthenticationToken token) {
        return (token instanceof HeaderAuthToken);
    }

    @Override
    protected void assertCredentialsMatch(AuthenticationToken token, AuthenticationInfo info)
            throws AuthenticationException {
        //just let this through
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        HeaderAuthToken headerAuthToken = (HeaderAuthToken) token;
        return populateAccount(headerAuthToken);
    }

    private HeaderAccount populateAccount(HeaderAuthToken headerAuthToken) {
        HeaderAccount headerAccount = new HeaderAccount();

        UserContext userContext = headerAuthToken.getUserContext();
        boolean admin = false;
        if (userContext == null) {
            ServiceProxy serviceProxy = new ServiceProxy();

            if (StringUtils.isBlank(headerAuthToken.getUsername())) {
                //They shouldn't get here unless open am is not configured
                throw new AuthenticationException("Unable to login.  No credentials passed.  Auth filter not set.");
            }

            UserProfile userProfile = new UserProfile();
            userProfile.setUsername(headerAuthToken.getUsername());
            userProfile.setFirstName(headerAuthToken.getFirstname());
            userProfile.setLastName(headerAuthToken.getLastname());
            userProfile.setOrganization(headerAuthToken.getOrganization());
            userProfile.setEmail(headerAuthToken.getEmail());
            userProfile.setExternalGuid(headerAuthToken.getGuid());

            if (StringUtils.isNotBlank(headerAuthToken.getGroup())
                    && StringUtils.isNotBlank(headerAuthToken.getAdminGroupName())) {
                admin = headerAuthToken.getGroup().contains(headerAuthToken.getAdminGroupName());
            }
            userContext = serviceProxy.getUserService().handleLogin(userProfile, headerAuthToken.getRequest(),
                    admin);
        } else {
            admin = userContext.isAdmin();
        }
        headerAccount.setCredentials(userContext);
        headerAccount.getSimplePrincipals().add(userContext, "Open Am Header User");
        if (admin) {
            headerAccount.getRoles().add(SecurityUtil.ADMIN_ROLE);
        }

        return headerAccount;
    }

}