SendEmailFormHandler.java

/*
 * Copyright (c) 2006-2009 by Dirk Riehle, http://dirkriehle.com
 *
 * This file is part of the Wahlzeit photo rating application.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public
 * License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 */

package org.wahlzeit.handlers;

import org.wahlzeit.model.AccessRights;
import org.wahlzeit.model.ModelConfig;
import org.wahlzeit.model.Photo;
import org.wahlzeit.model.PhotoManager;
import org.wahlzeit.model.User;
import org.wahlzeit.model.UserManager;
import org.wahlzeit.model.UserSession;
import org.wahlzeit.services.LogBuilder;
import org.wahlzeit.services.mailing.EmailService;
import org.wahlzeit.services.mailing.EmailServiceManager;
import org.wahlzeit.webparts.WebPart;

import java.util.Map;
import java.util.logging.Logger;

/**
 * A handler class for a specific web form.
 */
public class SendEmailFormHandler extends AbstractWebFormHandler {

	/**
	 *
	 */
	public static final String USER = "user";
	public static final String USER_LANGUAGE = "userLanguage";
	public static final String EMAIL_SUBJECT = "emailSubject";
	public static final String EMAIL_BODY = "emailBody";

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

	/**
	 *
	 */
	public SendEmailFormHandler() {
		initialize(PartUtil.SEND_EMAIL_FORM_FILE, AccessRights.GUEST);
	}

	/**
	 *
	 */
	public boolean isWellFormedGet(UserSession us, String link, Map args) {
		return hasSavedPhotoId(us);
	}

	/**
	 *
	 */
	protected String doHandleGet(UserSession us, String link, Map args) {
		if (!(us.getClient() instanceof User)) {
			us.setHeading(us.getClient().getLanguageConfiguration().getInformation());
			us.setMessage(us.getClient().getLanguageConfiguration().getNeedToSignupFirst());
			return PartUtil.SHOW_NOTE_PAGE_NAME;
		}

		return super.doHandleGet(us, link, args);
	}

	/**
	 *
	 */
	protected void doMakeWebPart(UserSession us, WebPart part) {
		Map args = us.getSavedArgs();
		part.addStringFromArgs(args, UserSession.MESSAGE);

		String id = us.getAndSaveAsString(args, Photo.ID);
		part.addString(Photo.ID, id);
		Photo photo = PhotoManager.getInstance().getPhoto(id);
		part.addString(Photo.THUMB, getPhotoThumb(us, photo));

		part.maskAndAddString(USER, photo.getOwnerId());

		User user = (User) us.getClient();
		part.addString(USER_LANGUAGE, user.getLanguageConfiguration().asValueString(user.getLanguage()));

		part.maskAndAddStringFromArgs(args, EMAIL_SUBJECT);
		part.maskAndAddStringFromArgs(args, EMAIL_BODY);
	}

	/**
	 *
	 */
	protected boolean isWellFormedPost(UserSession us, Map args) {
		return PhotoManager.getInstance().getPhoto(us.getAsString(args, Photo.ID)) != null;
	}

	/**
	 *
	 */
	protected String doHandlePost(UserSession us, Map args) {
		String id = us.getAndSaveAsString(args, Photo.ID);
		Photo photo = PhotoManager.getInstance().getPhoto(id);

		String emailSubject = us.getAndSaveAsString(args, EMAIL_SUBJECT);
		String emailBody = us.getAndSaveAsString(args, EMAIL_BODY);
		ModelConfig config = us.getClient().getLanguageConfiguration();
		if ((emailSubject.length() > 128) || (emailBody.length() > 1024)) {
			us.setMessage(config.getInputIsTooLong());
			return PartUtil.SEND_EMAIL_PAGE_NAME;
		}

		UserManager userManager = UserManager.getInstance();
		User toUser = userManager.getUserById(photo.getOwnerId());

		emailSubject = config.getSendEmailSubjectPrefix() + emailSubject;
		emailBody = config.getSendEmailBodyPrefix() + emailBody + config.getSendEmailBodyPostfix();

		EmailService emailService = EmailServiceManager.getDefaultService();
		emailService.sendEmailIgnoreException(toUser.getEmailAddress(), config.getAuditEmailAddress(), emailSubject,
				emailBody);

		log.info(LogBuilder.createUserMessage().
				addAction("Send E-Mail").
				addParameter("Recipient", toUser.getNickName()).toString());

		us.setMessage(config.getEmailWasSent() + toUser.getNickName() + "!");

		return PartUtil.SHOW_NOTE_PAGE_NAME;
	}

}