| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.ftpserver.usermanager.impl; |
| |
| import org.apache.ftpserver.ftplet.Authority; |
| import org.apache.ftpserver.ftplet.AuthorizationRequest; |
| |
| /** |
| * <strong>Internal class, do not use directly.</strong> |
| * |
| * The max upload rate permission |
| * |
| * @author <a href="http://mina.apache.org">Apache MINA Project</a> |
| */ |
| public class ConcurrentLoginPermission implements Authority { |
| |
| private final int maxConcurrentLogins; |
| |
| private final int maxConcurrentLoginsPerIP; |
| |
| public ConcurrentLoginPermission(int maxConcurrentLogins, |
| int maxConcurrentLoginsPerIP) { |
| this.maxConcurrentLogins = maxConcurrentLogins; |
| this.maxConcurrentLoginsPerIP = maxConcurrentLoginsPerIP; |
| } |
| |
| /** |
| * @see Authority#authorize(AuthorizationRequest) |
| */ |
| public AuthorizationRequest authorize(AuthorizationRequest request) { |
| if (request instanceof ConcurrentLoginRequest) { |
| ConcurrentLoginRequest concurrentLoginRequest = (ConcurrentLoginRequest) request; |
| |
| if (maxConcurrentLogins != 0 |
| && maxConcurrentLogins < concurrentLoginRequest |
| .getConcurrentLogins()) { |
| return null; |
| } else if (maxConcurrentLoginsPerIP != 0 |
| && maxConcurrentLoginsPerIP < concurrentLoginRequest |
| .getConcurrentLoginsFromThisIP()) { |
| return null; |
| } else { |
| concurrentLoginRequest |
| .setMaxConcurrentLogins(maxConcurrentLogins); |
| concurrentLoginRequest |
| .setMaxConcurrentLoginsPerIP(maxConcurrentLoginsPerIP); |
| |
| return concurrentLoginRequest; |
| } |
| } else { |
| return null; |
| } |
| } |
| |
| /** |
| * @see Authority#canAuthorize(AuthorizationRequest) |
| */ |
| public boolean canAuthorize(AuthorizationRequest request) { |
| return request instanceof ConcurrentLoginRequest; |
| } |
| } |