/**
* 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 java.util.Set;
import java.util.regex.Pattern;
import javax.servlet.http.HttpSession;
import net.socialgamer.cah.CahModule.BanList;
import net.socialgamer.cah.CahModule.MaxUsers;
import net.socialgamer.cah.Constants;
import net.socialgamer.cah.Constants.AjaxOperation;
import net.socialgamer.cah.Constants.AjaxRequest;
import net.socialgamer.cah.Constants.AjaxResponse;
import net.socialgamer.cah.Constants.ErrorCode;
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.User;
import com.google.inject.Inject;
/**
* Handler to register a name with the server and get connected.
*
* @author Andy Janata (ajanata@socialgamer.net)
*/
public class RegisterHandler extends Handler {
public static final String OP = AjaxOperation.REGISTER.toString();
private static final Pattern validName = Pattern.compile("[a-zA-Z_][a-zA-Z0-9_]{2,29}");
private final ConnectedUsers users;
private final Set<String> banList;
private final Integer maxUsers;
@Inject
public RegisterHandler(final ConnectedUsers users, @BanList final Set<String> banList,
@MaxUsers final Integer maxUsers) {
this.users = users;
this.banList = banList;
this.maxUsers = maxUsers;
}
@Override
public Map<ReturnableData, Object> handle(final RequestWrapper request,
final HttpSession session) {
final Map<ReturnableData, Object> data = new HashMap<ReturnableData, Object>();
if (banList.contains(request.getRemoteAddr())) {
return error(ErrorCode.BANNED);
}
if (request.getParameter(AjaxRequest.NICKNAME) == null) {
return error(ErrorCode.NO_NICK_SPECIFIED);
} else {
final String nick = request.getParameter(AjaxRequest.NICKNAME).trim();
if (!validName.matcher(nick).matches()) {
return error(ErrorCode.INVALID_NICK);
} else if ("xyzzy".equalsIgnoreCase(nick)) {
return error(ErrorCode.RESERVED_NICK);
} else {
final User user = new User(nick, request.getRemoteAddr(),
Constants.ADMIN_IP_ADDRESSES.contains(request.getRemoteAddr()));
final ErrorCode errorCode = users.checkAndAdd(user, maxUsers);
if (null == errorCode) {
// There is a findbugs warning on this line:
// cah/src/net/socialgamer/cah/handlers/RegisterHandler.java:85 Store of non serializable
// net.socialgamer.cah.data.User into HttpSession in
// net.socialgamer.cah.handlers.RegisterHandler.handle(RequestWrapper, HttpSession)
// I am choosing to ignore this for the time being as it works under light load, and I am
// intending on moving away from HttpSession for storing user data in the not too distant
// future, to fix issues with loading the game twice in the same browser.
session.setAttribute(SessionAttribute.USER, user);
data.put(AjaxResponse.NICKNAME, nick);
} else {
return error(errorCode);
}
}
}
return data;
}
}