/**
* Copyright (c) 2012, Andy Janata
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, are permitted
* provided that the following conditions are met:
*
* * Redistributions of source code must retain the above copyright notice, this list of conditions
* and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
* WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
package net.socialgamer.cah.handlers;
import java.util.HashMap;
import java.util.Map;
import javax.servlet.http.HttpSession;
import net.socialgamer.cah.Constants;
import net.socialgamer.cah.Constants.AjaxOperation;
import net.socialgamer.cah.Constants.AjaxRequest;
import net.socialgamer.cah.Constants.ErrorCode;
import net.socialgamer.cah.Constants.LongPollEvent;
import net.socialgamer.cah.Constants.LongPollResponse;
import net.socialgamer.cah.Constants.ReturnableData;
import net.socialgamer.cah.Constants.SessionAttribute;
import net.socialgamer.cah.RequestWrapper;
import net.socialgamer.cah.data.ConnectedUsers;
import net.socialgamer.cah.data.QueuedMessage.MessageType;
import net.socialgamer.cah.data.User;
import com.google.inject.Inject;
/**
* Handler for chat messages.
*
* @author Andy Janata (ajanata@socialgamer.net)
*/
public class ChatHandler extends Handler {
public static final String OP = AjaxOperation.CHAT.toString();
private final ConnectedUsers users;
@Inject
public ChatHandler(final ConnectedUsers users) {
this.users = users;
}
@Override
public Map<ReturnableData, Object> handle(final RequestWrapper request,
final HttpSession session) {
final Map<ReturnableData, Object> data = new HashMap<ReturnableData, Object>();
final User user = (User) session.getAttribute(SessionAttribute.USER);
assert (user != null);
final boolean wall = request.getParameter(AjaxRequest.WALL) != null
&& Boolean.valueOf(request.getParameter(AjaxRequest.WALL));
final boolean emote = request.getParameter(AjaxRequest.EMOTE) != null
&& Boolean.valueOf(request.getParameter(AjaxRequest.EMOTE));
if (request.getParameter(AjaxRequest.MESSAGE) == null) {
return error(ErrorCode.NO_MSG_SPECIFIED);
} else if (wall && !user.isAdmin()) {
return error(ErrorCode.NOT_ADMIN);
} else {
final String message = request.getParameter(AjaxRequest.MESSAGE).trim();
// Intentionally leaving flood protection as per-user, rather than
// changing it to per-user-per-game.
if (user.getLastMessageTimes().size() >= Constants.CHAT_FLOOD_MESSAGE_COUNT) {
final Long head = user.getLastMessageTimes().get(0);
if (System.currentTimeMillis() - head < Constants.CHAT_FLOOD_TIME) {
return error(ErrorCode.TOO_FAST);
}
user.getLastMessageTimes().remove(0);
}
if (message.length() > Constants.CHAT_MAX_LENGTH) {
return error(ErrorCode.MESSAGE_TOO_LONG);
} else if (message.length() == 0) {
return error(ErrorCode.NO_MSG_SPECIFIED);
} else {
user.getLastMessageTimes().add(System.currentTimeMillis());
final HashMap<ReturnableData, Object> broadcastData = new HashMap<ReturnableData, Object>();
broadcastData.put(LongPollResponse.EVENT, LongPollEvent.CHAT.toString());
broadcastData.put(LongPollResponse.FROM, user.getNickname());
broadcastData.put(LongPollResponse.MESSAGE, message);
if (user.isAdmin()) {
broadcastData.put(LongPollResponse.FROM_ADMIN, true);
}
if (wall) {
broadcastData.put(LongPollResponse.WALL, true);
}
if (emote) {
broadcastData.put(LongPollResponse.EMOTE, true);
}
users.broadcastToAll(MessageType.CHAT, broadcastData);
}
}
return data;
}
}