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

   1 /*\r
   2  *  Copyright © 2017-2018 AT&T Intellectual Property.\r
   3  *  Modifications Copyright © 2018 IBM.\r
   4  *  \r
   5  *  Licensed under the Apache License, Version 2.0 (the "License");\r
   6  *  you may not use this file except in compliance with the License.\r
   7  *  You may obtain a copy of the License at\r
   8  *\r
   9  *      http://www.apache.org/licenses/LICENSE-2.0\r
  10  *\r
  11  *  Unless required by applicable law or agreed to in writing, software\r
  12  *  distributed under the License is distributed on an "AS IS" BASIS,\r
  13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\r
  14  *  See the License for the specific language governing permissions and\r
  15  *  limitations under the License.\r
  16  */\r
  17 \r
  18 package org.onap.ccsdk.apps.controllerblueprints.filters;\r
  19 \r
  20 import org.springframework.http.HttpMethod;\r
  21 import org.springframework.stereotype.Component;\r
  22 import javax.servlet.*;\r
  23 import javax.servlet.annotation.WebFilter;\r
  24 import javax.servlet.http.HttpServletRequest;\r
  25 import javax.servlet.http.HttpServletResponse;\r
  26 import java.io.IOException;\r
  27 /**\r
  28  * CorsFilter.java Purpose: Provide Configuration Generator CorsFilter Information\r
  29  *\r
  30  * @author Brinda Santh\r
  31  */\r
  32 @Component\r
  33 @WebFilter(asyncSupported = true, urlPatterns = {"/*"})\r
  34 @SuppressWarnings("unused")\r
  35 public class CorsFilter implements Filter {\r
  36 \r
  37     public void destroy() {\r
  38         //method does nothing\r
  39     }\r
  40 \r
  41     public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain)\r
  42             throws IOException, ServletException {\r
  43 \r
  44         HttpServletRequest request = (HttpServletRequest) servletRequest;\r
  45         HttpServletResponse response = (HttpServletResponse) servletResponse;\r
  46 \r
  47         response.addHeader("Access-Control-Allow-Origin", "*");\r
  48         response.addHeader("Access-Control-Allow-Methods", "*");\r
  49         response.addHeader("Access-Control-Allow-Headers",\r
  50                 "DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range");\r
  51 \r
  52         if (request.getMethod().equals(HttpMethod.OPTIONS.toString())) {\r
  53             response.addHeader("Access-Control-Max-Age", "1728000");\r
  54             response.setStatus(HttpServletResponse.SC_ACCEPTED);\r
  55             return;\r
  56         }\r
  57         chain.doFilter(request, servletResponse);\r
  58     }\r
  59 \r
  60     public void init(FilterConfig fConfig) throws ServletException {\r
  61         //method does nothing\r
  62     }\r
  63 \r
  64 }