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

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Here is the source code for edu.usu.sdl.openstorefront.security.OpenAmRealm.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.common.manager.PropertiesManager;
import java.util.Objects;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
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.authc.UsernamePasswordToken;
import org.apache.shiro.authz.AuthorizationInfo;
import org.apache.shiro.realm.AuthorizingRealm;
import org.apache.shiro.subject.PrincipalCollection;

/**
 * This is used to when connect to open am directly...use HeaderRelam for
 * indirect handling
 *
 * @author dshurtleff
 */
public class OpenAmRealm extends AuthorizingRealm {

    private static final Logger log = Logger.getLogger(OpenAmRealm.class.getName());

    @Override
    protected AuthorizationInfo doGetAuthorizationInfo(PrincipalCollection principals) {
        Objects.requireNonNull(principals, "Principals Required");
        OpenAmUser openAmUser = (OpenAmUser) principals.getPrimaryPrincipal();
        if (openAmUser != null) {
            return populateAccount(openAmUser.getTokenId(), openAmUser.getUsername());
        } else {
            log.log(Level.SEVERE, "Unable to get Primary Principle.  The primary principal is not set.");
            return null;
        }
    }

    @Override
    protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
        WebTarget target = restClient("json/authenticate");
        UsernamePasswordToken usernamePasswordToken = (UsernamePasswordToken) token;
        Response response = target.request(MediaType.APPLICATION_JSON)
                .header("X-OpenAM-Username", usernamePasswordToken.getUsername())
                .header("X-OpenAM-Password", String.valueOf(usernamePasswordToken.getPassword())).post(null);

        OpenAmResponse openAmResponse = response.readEntity(OpenAmResponse.class);
        if (StringUtils.isNotBlank(openAmResponse.getTokenId())) {
            OpenAmAccount account = populateAccount(openAmResponse.getTokenId(), token.getPrincipal().toString());
            account.setCredentials(usernamePasswordToken.getPassword());
            return account;
        } else {
            throw new AuthenticationException(openAmResponse.getReason());
        }
    }

    private OpenAmAccount populateAccount(String token, String username) {
        //TODO: Check to see if this should be cached
        OpenAmAccount openAmAccount = new OpenAmAccount();
        OpenAmUser openAmUser = new OpenAmUser();
        openAmUser.setTokenId(token);
        openAmUser.setUsername(username);
        openAmAccount.getSimplePrincipals().add(openAmUser, "Open AM");

        //Add Authorization info   We just need to know if the user is an admin or not.
        WebTarget target = restClient("identity/authorize");
        Response response = target.queryParam("uri", "/admin").queryParam("subjectid", token)
                .request(MediaType.APPLICATION_JSON).get();

        String data = response.readEntity(String.class);
        if (StringUtils.isNotBlank(data) && data.equalsIgnoreCase("boolean=true\n")) {
            openAmUser.setAdmin(true);
            openAmAccount.getRoles().add("administrator");
        }

        return openAmAccount;
    }

    private WebTarget restClient(String operationURL) {
        Client client = ClientBuilder.newClient();
        String server = PropertiesManager.getValue("openam.url", "http://openam.example.com:6800/openam/");
        if (server.endsWith("/") == false) {
            server += "/";
        }
        WebTarget webTarget = client.target(server + operationURL);
        return webTarget;
    }

}