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

   1 /**
   2  * ============LICENSE_START=======================================================
   3  * org.onap.aai
   4  * ================================================================================
   5  * Copyright © 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  * ECOMP is a trademark and service mark of AT&T Intellectual Property.
  21  */
  22 package org.onap.aai.logging;
  23
  24 import ch.qos.logback.access.pattern.AccessConverter;
  25 import ch.qos.logback.access.spi.IAccessEvent;
  26
  27 import javax.security.auth.x500.X500Principal;
  28 import javax.servlet.http.HttpServletRequest;
  29 import java.security.cert.X509Certificate;
  30
  31 import static java.util.Base64.getDecoder;
  32
  33 public class CNName extends AccessConverter {
  34
  35         /**
  36          * Converts access events to String response codes
  37          *
  38          * @param accessEvent the IAccessEvent
  39          */
  40         public String convert(IAccessEvent accessEvent) {
  41                 if (!isStarted()) {
  42                         return "INACTIVE_HEADER_CONV";
  43                 }
  44
  45                 String cipherSuite = (String) accessEvent.getRequest().getAttribute("javax.servlet.request.cipher_suite");
  46                 String authUser = null;
  47                 if (cipherSuite != null) {
  48                         try {
  49                 X509Certificate certChain[] = (X509Certificate[]) accessEvent.getRequest()
  50                         .getAttribute("javax.servlet.request.X509Certificate");
  51                                 if(certChain == null || certChain.length == 0){
  52
  53                                         HttpServletRequest request = accessEvent.getRequest();
  54
  55                                         String authorization = request.getHeader("Authorization");
  56
  57                     // Set the auth user to "-" so if the authorization header is not found
  58                                         // Or if the decoded basic auth credentials are not found in the format required
  59                                         // it should return "-"
  60                                         // If the decoded string is in the right format, find the index of ":"
  61                     // Then get the substring of the starting point to the colon not including the colon
  62
  63                     authUser = "-";
  64
  65                                         if(authorization != null && authorization.startsWith("Basic ")){
  66                                                 String credentials = authorization.replace("Basic ", "");
  67                         byte[] userCredentials = getDecoder().decode(credentials.getBytes("utf-8"));
  68                         credentials = new String(userCredentials);
  69
  70                                                 int codePoint = credentials.indexOf(':');
  71
  72                                                 if(codePoint != -1){
  73                             authUser = credentials.substring(0, codePoint);
  74                                                 }
  75
  76                                         }
  77
  78                                         return authUser;
  79
  80                                 } else {
  81                                         X509Certificate clientCert = certChain[0];
  82                                         X500Principal subjectDN = clientCert.getSubjectX500Principal();
  83                                         authUser = subjectDN.toString();
  84                                         return authUser;
  85                                 }
  86                         } catch(Exception ex){
  87                                 return "-";
  88                         }
  89                 } else {
  90                         return "-";
  91                 }
  92         }
  93
  94 }