FlagPhotoFormHandler.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.agents.AsyncTaskExecutor;
import org.wahlzeit.model.AccessRights;
import org.wahlzeit.model.FlagReason;
import org.wahlzeit.model.ModelConfig;
import org.wahlzeit.model.Photo;
import org.wahlzeit.model.PhotoCase;
import org.wahlzeit.model.PhotoCaseManager;
import org.wahlzeit.model.PhotoManager;
import org.wahlzeit.model.UserSession;
import org.wahlzeit.services.EmailAddress;
import org.wahlzeit.services.LogBuilder;
import org.wahlzeit.services.mailing.EmailService;
import org.wahlzeit.services.mailing.EmailServiceManager;
import org.wahlzeit.utils.StringUtil;
import org.wahlzeit.webparts.WebPart;

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

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

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


	/**
	 *
	 */
	public FlagPhotoFormHandler() {
		initialize(PartUtil.FLAG_PHOTO_FORM_FILE, AccessRights.GUEST);
	}

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

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

		String id = us.getAsString(args, Photo.ID);
		Photo photo = PhotoManager.getInstance().getPhoto(id);
		part.addString(Photo.ID, id);
		part.addString(Photo.THUMB, getPhotoThumb(us, photo));
		part.maskAndAddStringFromArgsWithDefault(args, PhotoCase.FLAGGER, us.getClient().getEmailAddress().asString());
		part.addSelect(PhotoCase.REASON, FlagReason.MISMATCH);
		part.maskAndAddStringFromArgs(args, PhotoCase.EXPLANATION);
	}

	/**
	 *
	 */
	protected String doHandlePost(UserSession us, Map args) {
		String id = us.getAndSaveAsString(args, Photo.ID);
		String flagger = us.getAndSaveAsString(args, PhotoCase.FLAGGER);
		FlagReason reason = FlagReason.getFromString(us.getAndSaveAsString(args, PhotoCase.REASON));
		String explanation = us.getAndSaveAsString(args, PhotoCase.EXPLANATION);
		ModelConfig config = us.getClient().getLanguageConfiguration();

		if (StringUtil.isNullOrEmptyString(flagger)) {
			us.setMessage(config.getEmailAddressIsMissing());
			return PartUtil.FLAG_PHOTO_PAGE_NAME;
		} else if (!StringUtil.isValidStrictEmailAddress(flagger)) {
			us.setMessage(config.getEmailAddressIsInvalid());
			return PartUtil.FLAG_PHOTO_PAGE_NAME;
		} else if (explanation.length() > 1024) {
			us.setMessage(config.getInputIsTooLong());
			return PartUtil.FLAG_PHOTO_PAGE_NAME;
		}

		Photo photo = PhotoManager.getInstance().getPhoto(id);
		photo.setStatus(photo.getStatus().asFlagged(true));
		AsyncTaskExecutor.savePhotoAsync(id);

		PhotoCase photoCase = new PhotoCase(photo);
		photoCase.setFlagger(flagger);
		photoCase.setReason(reason);
		photoCase.setExplanation(explanation);
		PhotoCaseManager pcm = PhotoCaseManager.getInstance();
		pcm.addPhotoCase(photoCase);

		EmailService emailService = EmailServiceManager.getDefaultService();

		EmailAddress to = config.getModeratorEmailAddress();

		String emailSubject = "Photo: " + id + " of user: " + photo.getOwnerId() + " got flagged";
		String emailBody = "Photo: " + us.getSiteUrl() + id + ".html\n\n";
		emailBody += "Reason: " + reason + "\n\n";
		emailBody += "Explanation: " + explanation + "\n\n";

		emailService.sendEmailIgnoreException(to, config.getAuditEmailAddress(), emailSubject, emailBody);

		log.info(LogBuilder.createUserMessage()
				.addAction("Flag Photo")
				.addParameter("Photo", photo.getId().asString()).toString());

		us.setTwoLineMessage(config.getModeratorWasInformed(), config.getContinueWithShowPhoto());

		return PartUtil.SHOW_NOTE_PAGE_NAME;
	}

}