aai-core/src/main/java/org/openecomp/aai/logging/CNName.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * org.openecomp.aai
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Licensed under the Apache License, Version 2.0 (the "License");
   8  * you may not use this file except in compliance with the License.
   9  * You may obtain a copy of the License at
  10  *
  11  *      http://www.apache.org/licenses/LICENSE-2.0
  12  *
  13  * Unless required by applicable law or agreed to in writing, software
  14  * distributed under the License is distributed on an "AS IS" BASIS,
  15  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16  * See the License for the specific language governing permissions and
  17  * limitations under the License.
  18  * ============LICENSE_END=========================================================
  19  */
  20
  21 package org.openecomp.aai.logging;
  22
  23 import ch.qos.logback.access.pattern.AccessConverter;
  24 import ch.qos.logback.access.spi.IAccessEvent;
  25
  26 import javax.security.auth.x500.X500Principal;
  27 import javax.servlet.http.HttpServletRequest;
  28 import java.security.cert.X509Certificate;
  29
  30 import static java.util.Base64.getDecoder;
  31
  32 public class CNName extends AccessConverter {
  33
  34         /**
  35          * Converts access events to String response codes
  36          *
  37          * @param accessEvent the IAccessEvent
  38          */
  39         public String convert(IAccessEvent accessEvent) {
  40                 if (!isStarted()) {
  41                         return "INACTIVE_HEADER_CONV";
  42                 }
  43
  44                 String cipherSuite = (String) accessEvent.getRequest().getAttribute("javax.servlet.request.cipher_suite");
  45                 String authUser = null;
  46                 if (cipherSuite != null) {
  47                         try {
  48                 X509Certificate certChain[] = (X509Certificate[]) accessEvent.getRequest()
  49                         .getAttribute("javax.servlet.request.X509Certificate");
  50                                 if(certChain == null || certChain.length == 0){
  51
  52                                         HttpServletRequest request = accessEvent.getRequest();
  53
  54                                         String authorization = request.getHeader("Authorization");
  55
  56                     // Set the auth user to "-" so if the authorization header is not found
  57                                         // Or if the decoded basic auth credentials are not found in the format required
  58                                         // it should return "-"
  59                                         // If the decoded string is in the right format, find the index of ":"
  60                     // Then get the substring of the starting point to the colon not including the colon
  61
  62                     authUser = "-";
  63
  64                                         if(authorization != null && authorization.startsWith("Basic ")){
  65                                                 String credentials = authorization.replace("Basic ", "");
  66                         byte[] userCredentials = getDecoder().decode(credentials.getBytes("utf-8"));
  67                         credentials = new String(userCredentials);
  68
  69                                                 int codePoint = credentials.indexOf(':');
  70
  71                                                 if(codePoint != -1){
  72                             authUser = credentials.substring(0, codePoint);
  73                                                 }
  74
  75                                         }
  76
  77                                         return authUser;
  78
  79                                 } else {
  80                                         X509Certificate clientCert = certChain[0];
  81                                         X500Principal subjectDN = clientCert.getSubjectX500Principal();
  82                                         authUser = subjectDN.toString();
  83                                         return authUser;
  84                                 }
  85                         } catch(Exception ex){
  86                                 return "-";
  87                         }
  88                 } else {
  89                         return "-";
  90                 }
  91         }
  92
  93 }