com.agiletec.plugins.jpcasclient.aps.system.services.controller.control.CasClientTicketValidationUtil.java Source code

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Here is the source code for com.agiletec.plugins.jpcasclient.aps.system.services.controller.control.CasClientTicketValidationUtil.java

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/*
 * Copyright 2015-Present Entando Inc. (http://www.entando.com) All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
package com.agiletec.plugins.jpcasclient.aps.system.services.controller.control;

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.MultiThreadedHttpConnectionManager;
import org.apache.commons.httpclient.NameValuePair;
import org.apache.commons.httpclient.cookie.CookiePolicy;
import org.apache.commons.httpclient.methods.GetMethod;
import org.jasig.cas.client.validation.Assertion;
import org.jasig.cas.client.validation.AssertionImpl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.agiletec.aps.system.ApsSystemUtils;
import com.agiletec.aps.system.exception.ApsSystemException;

/**
 * Utility for CAS ticket validation
 * 
 * @author G.Cocco
 * */
public class CasClientTicketValidationUtil {

    private static final Logger _logger = LoggerFactory.getLogger(CasClientTicketValidationUtil.class);

    public CasClientTicketValidationUtil(String urlCasValidate) {
        this._urlCasValidate = urlCasValidate;
    }

    /**
     * ticket validation 
     * */
    public Assertion validateTicket(String service, String ticket_key) throws ApsSystemException {
        Assertion assertion = null;
        MultiThreadedHttpConnectionManager connectionManager = new MultiThreadedHttpConnectionManager();
        _client = new HttpClient(connectionManager);
        GetMethod authget = new GetMethod();
        Map<String, String> params = new HashMap<String, String>();
        params.put("service", service);
        params.put("ticket", ticket_key);
        authget.getParams().setCookiePolicy(CookiePolicy.DEFAULT);
        String responseBodyValidation = null;
        String responseAssertion = null;
        String responseUser = null;
        responseBodyValidation = this.CASgetMethod(authget, _client, this._urlCasValidate, params);
        try {
            //    controllo della risposta sulla richiesta validazione ticket
            if (null != responseBodyValidation && responseBodyValidation.length() > 0) {
                InputStreamReader reader;
                reader = new InputStreamReader(authget.getResponseBodyAsStream());
                BufferedReader bufferedReader = new BufferedReader(reader);
                responseAssertion = bufferedReader.readLine();
                if (responseAssertion.equals(_positiveResponse)) {
                    responseUser = bufferedReader.readLine();
                }
                ApsSystemUtils.getLogger().info("CasClientTicketValidationUtil - Assertion: " + responseAssertion
                        + " user: " + responseUser);
            }
        } catch (Throwable t) {
            _logger.error("Error in CasClientTicketValidationUtil - validateTicket", t);
            throw new ApsSystemException("Error in CasClientTicketValidationUtil - validateTicket", t);
        }
        if (null != responseAssertion && null != responseUser
                && responseAssertion.equalsIgnoreCase(_positiveResponse) && responseUser.length() > 0) {
            assertion = new AssertionImpl(responseUser);
        }
        return assertion;
    }

    /**
     * Service method for execution of get request. 
     * */
    public String CASgetMethod(GetMethod authget, HttpClient client, String url, Map<String, String> params) {
        String body = null;
        authget.setPath(url);
        int i = 0;
        if (null != params && params.size() > 0) {
            NameValuePair[] services = new NameValuePair[params.size()];
            for (Iterator iter = params.entrySet().iterator(); iter.hasNext();) {
                Map.Entry entry = (Map.Entry) iter.next();
                String key = (String) entry.getKey();
                String value = (String) entry.getValue();
                services[i++] = new NameValuePair(key, value);
            }
            authget.setQueryString(services);
        }
        try {
            client.executeMethod(authget);
            body = authget.getResponseBodyAsString();
        } catch (Throwable t) {
            _logger.error("Error in CasClientTicketValidationUtil - CASgetMethod", t);
            throw new RuntimeException("Error in CasClientTicketValidationUtil - CASgetMethod", t);
        } finally {
            authget.releaseConnection();
        }
        return body;
    }

    private final static String _positiveResponse = "yes";
    private HttpClient _client;
    private String _urlCasValidate;

}