gerrit.onap Code Review - ccsdk/cds.git/blob

   1 /*\r
   2  *  Copyright © 2017-2018 AT&T Intellectual Property.\r
   3  *\r
   4  *  Licensed under the Apache License, Version 2.0 (the "License");\r
   5  *  you may not use this file except in compliance with the License.\r
   6  *  You may obtain a copy of the License at\r
   7  *\r
   8  *      http://www.apache.org/licenses/LICENSE-2.0\r
   9  *\r
  10  *  Unless required by applicable law or agreed to in writing, software\r
  11  *  distributed under the License is distributed on an "AS IS" BASIS,\r
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  13  *  See the License for the specific language governing permissions and\r
  14  *  limitations under the License.\r
  15  */\r
  16 \r
  17 package org.onap.ccsdk.apps.controllerblueprints.filters;\r
  18 \r
  19 import org.springframework.http.HttpMethod;\r
  20 import org.springframework.stereotype.Component;\r
  21 import javax.servlet.*;\r
  22 import javax.servlet.annotation.WebFilter;\r
  23 import javax.servlet.http.HttpServletRequest;\r
  24 import javax.servlet.http.HttpServletResponse;\r
  25 import java.io.IOException;\r
  26 /**\r
  27  * CorsFilter.java Purpose: Provide Configuration Generator CorsFilter Information\r
  28  *\r
  29  * @author Brinda Santh\r
  30  */\r
  31 @Component\r
  32 @WebFilter(asyncSupported = true, urlPatterns = {"/*"})\r
  33 @SuppressWarnings("unused")\r
  34 public class CorsFilter implements Filter {\r
  35 \r
  36     public void destroy() {\r
  37     }\r
  38 \r
  39     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)\r
  40             throws IOException, ServletException {\r
  41 \r
  42         HttpServletRequest request = (HttpServletRequest) servletRequest;\r
  43         HttpServletResponse response = (HttpServletResponse) servletResponse;\r
  44 \r
  45         response.addHeader("Access-Control-Allow-Origin", "*");\r
  46         response.addHeader("Access-Control-Allow-Methods", "*");\r
  47         response.addHeader("Access-Control-Allow-Headers",\r
  48                 "DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range");\r
  49 \r
  50         if (request.getMethod().equals(HttpMethod.OPTIONS.toString())) {\r
  51             response.addHeader("Access-Control-Max-Age", "1728000");\r
  52             response.setStatus(HttpServletResponse.SC_ACCEPTED);\r
  53             return;\r
  54         }\r
  55         chain.doFilter(request, servletResponse);\r
  56     }\r
  57 \r
  58     public void init(FilterConfig fConfig) throws ServletException {\r
  59     }\r
  60 \r
  61 }