io.lavagna.web.helper.CardCommentOwnershipChecker.java Source code

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Here is the source code for io.lavagna.web.helper.CardCommentOwnershipChecker.java

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/**
 * This file is part of lavagna.
 *
 * lavagna is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * lavagna 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with lavagna.  If not, see <http://www.gnu.org/licenses/>.
 */
package io.lavagna.web.helper;

import io.lavagna.model.UserWithPermission;
import io.lavagna.model.Event.EventType;
import io.lavagna.service.EventRepository;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

@Component
public class CardCommentOwnershipChecker implements OwnershipChecker {

    private final Pattern pattern = Pattern.compile("^.*/comment/(\\d+)$");

    private final EventRepository eventRepository;

    @Autowired
    public CardCommentOwnershipChecker(EventRepository eventRepository) {
        this.eventRepository = eventRepository;
    }

    @Override
    public boolean hasOwnership(HttpServletRequest request, UserWithPermission user) {

        Matcher matcher = pattern.matcher(request.getRequestURI());
        try {
            if (matcher.matches()) {
                int userId = UserSession.getUserId(request);
                int commentId = Integer.parseInt(matcher.group(1), 10);
                return eventRepository.findUsersIdFor(commentId, EventType.COMMENT_CREATE).contains(userId);
            }
        } catch (NumberFormatException nfe) {
            return false;
        }

        return false;
    }
}