| /* |
| * 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.pulsar.broker.web; |
| |
| import java.io.IOException; |
| import javax.servlet.Filter; |
| import javax.servlet.FilterChain; |
| import javax.servlet.FilterConfig; |
| import javax.servlet.ServletException; |
| import javax.servlet.ServletRequest; |
| import javax.servlet.ServletResponse; |
| import javax.servlet.http.HttpServletRequest; |
| import javax.servlet.http.HttpServletResponse; |
| |
| public class MaxRequestSizeFilter implements Filter { |
| |
| private final long maxSize; |
| |
| public MaxRequestSizeFilter(long maxSize) { |
| this.maxSize = maxSize; |
| } |
| |
| @Override |
| public void init(FilterConfig filterConfig) throws ServletException { |
| } |
| |
| @Override |
| public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) |
| throws IOException, ServletException { |
| |
| long size = request.getContentLengthLong(); |
| |
| if (size > maxSize || isChunked(request)) { |
| // Size it's either unknown or too large |
| HttpServletResponse httpResponse = (HttpServletResponse) response; |
| httpResponse.sendError(HttpServletResponse.SC_BAD_REQUEST, "Bad Request"); |
| } else { |
| chain.doFilter(request, response); |
| } |
| } |
| |
| private static boolean isChunked(ServletRequest request) { |
| if (request instanceof HttpServletRequest) { |
| HttpServletRequest req = (HttpServletRequest) request; |
| String encoding = req.getHeader("Transfer-Encoding"); |
| return encoding != null && encoding.contains("chunked"); |
| } else { |
| return false; |
| } |
| } |
| |
| @Override |
| public void destroy() { |
| } |
| } |