uk.ac.diamond.scisoft.feedback.FeedbackRequest.java Source code

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Here is the source code for uk.ac.diamond.scisoft.feedback.FeedbackRequest.java

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/*
 * Copyright (c) 2012 Diamond Light Source Ltd.
 *
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 */

package uk.ac.diamond.scisoft.feedback;

import java.io.File;
import java.util.List;

import org.apache.http.HttpHost;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.conn.params.ConnRoutePNames;
import org.apache.http.entity.mime.MultipartEntity;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.entity.mime.content.StringBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Class that submits a request to the DAWNFeedback Servlet
 */
public class FeedbackRequest {

    private static Logger logger = LoggerFactory.getLogger(FeedbackRequest.class);
    // this is the URL of the GAE servlet
    // public static final String SERVLET_URL = "http://localhost:8888/";
    public static final String SERVLET_URL = "http://dawnsci-feedback.appspot.com/";
    public static final String SERVLET_NAME = "dawnfeedback";
    // proxy
    private static String host;
    private static int port;

    /**
     * Method used to submit a form data/file through HTTP to a GAE servlet
     * 
     * @param email
     * @param to
     * @param name
     * @param subject
     * @param messageBody
     * @param attachmentFiles
     * @param monitor
     */
    public static IStatus doRequest(String email, String to, String name, String subject, String messageBody,
            List<File> attachmentFiles, IProgressMonitor monitor) throws Exception {
        Status status = null;
        DefaultHttpClient httpclient = new DefaultHttpClient();

        FeedbackProxy.init();
        host = FeedbackProxy.getHost();
        port = FeedbackProxy.getPort();

        if (monitor.isCanceled())
            return Status.CANCEL_STATUS;

        // if there is a proxy
        if (host != null) {
            HttpHost proxy = new HttpHost(host, port);
            httpclient.getParams().setParameter(ConnRoutePNames.DEFAULT_PROXY, proxy);
        }

        if (monitor.isCanceled())
            return Status.CANCEL_STATUS;

        try {
            HttpPost httpost = new HttpPost(SERVLET_URL + SERVLET_NAME);

            MultipartEntity entity = new MultipartEntity();
            entity.addPart("name", new StringBody(name));
            entity.addPart("email", new StringBody(email));
            entity.addPart("to", new StringBody(to));
            entity.addPart("subject", new StringBody(subject));
            entity.addPart("message", new StringBody(messageBody));

            // add attachement files to the multipart entity
            for (int i = 0; i < attachmentFiles.size(); i++) {
                if (attachmentFiles.get(i) != null && attachmentFiles.get(i).exists())
                    entity.addPart("attachment" + i + ".html", new FileBody(attachmentFiles.get(i)));
            }

            if (monitor.isCanceled())
                return Status.CANCEL_STATUS;

            httpost.setEntity(entity);

            // HttpPost post = new HttpPost("http://dawnsci-feedback.appspot.com/dawnfeedback?name=baha&email=baha@email.com&subject=thisisasubject&message=thisisthemessage");
            HttpResponse response = httpclient.execute(httpost);

            if (monitor.isCanceled())
                return Status.CANCEL_STATUS;

            final String reasonPhrase = response.getStatusLine().getReasonPhrase();
            int statusCode = response.getStatusLine().getStatusCode();
            if (statusCode == 200) {
                logger.debug("Status code 200");
                status = new Status(IStatus.OK, "Feedback successfully sent", "Thank you for your contribution");
            } else {
                logger.debug("Feedback email not sent - HTTP response: " + reasonPhrase);
                status = new Status(IStatus.WARNING, "Feedback not sent",
                        "The response from the server is the following:\n" + reasonPhrase
                                + "\nClick on OK to submit your feedback using the online feedback form available at http://dawnsci-feedback.appspot.com/");
            }
            logger.debug("HTTP Response: " + response.getStatusLine());
        } finally {
            // When HttpClient instance is no longer needed,
            // shut down the connection manager to ensure
            // immediate deallocation of all system resources
            httpclient.getConnectionManager().shutdown();
        }
        return status;
    }
}