org.alfresco.web.bean.ajax.PresenceProxyBean.java Source code

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Here is the source code for org.alfresco.web.bean.ajax.PresenceProxyBean.java

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/*
 * #%L
 * Alfresco Repository WAR Community
 * %%
 * Copyright (C) 2005 - 2016 Alfresco Software Limited
 * %%
 * This file is part of the Alfresco software. 
 * If the software was purchased under a paid Alfresco license, the terms of 
 * the paid license agreement will prevail.  Otherwise, the software is 
 * provided under the following open source license terms:
 * 
 * Alfresco is free software: you can redistribute it and/or modify
 * 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.
 * 
 * Alfresco 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 Alfresco. If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.alfresco.web.bean.ajax;

import java.io.IOException;
import java.io.Serializable;
import java.util.Map;

import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;

import org.alfresco.repo.content.MimetypeMap;
import org.alfresco.web.app.servlet.ajax.InvokeCommand;
import org.apache.commons.httpclient.DefaultHttpMethodRetryHandler;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.HttpMethod;
import org.apache.commons.httpclient.HttpStatus;
import org.apache.commons.httpclient.methods.GetMethod;
import org.apache.commons.httpclient.params.HttpMethodParams;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;

/**
 * Bean which proxies requests to online presence servers.
 * 
 * @author Mike Hatfield
 */
public class PresenceProxyBean implements Serializable {
    private static final long serialVersionUID = -3041576848188629589L;

    private static Log logger = LogFactory.getLog(PresenceProxyBean.class);

    @InvokeCommand.ResponseMimetype(value = MimetypeMap.MIMETYPE_HTML)
    public void proxyRequest() throws Exception {
        FacesContext fc = FacesContext.getCurrentInstance();
        ResponseWriter out = fc.getResponseWriter();

        Map<String, String> requestMap = fc.getExternalContext().getRequestParameterMap();
        String url = (String) requestMap.get("url");

        if (logger.isDebugEnabled())
            logger.debug("PresenceProxyBean.proxyRequest() url=" + url);

        if (url != null) {
            String response = getUrlResponse(url);
            out.write(response);
        }
    }

    /**
     * Perform request
     */
    public String getUrlResponse(String requestUrl) {
        String response = "";
        HttpClient client = new HttpClient();
        HttpMethod method = new GetMethod(requestUrl);
        method.setRequestHeader("Accept", "*/*");
        client.getParams().setParameter(HttpMethodParams.RETRY_HANDLER, new DefaultHttpMethodRetryHandler());
        try {
            int statusCode = client.executeMethod(method);
            if (statusCode == HttpStatus.SC_OK) {
                response = method.getResponseBodyAsString();
            } else {
                response = method.getStatusText();
            }
        } catch (HttpException e) {
            response = e.getMessage();
        } catch (IOException e) {
            response = e.getMessage();
        } finally {
            // Release the connection.
            method.releaseConnection();
        }

        return response;
    }
}