cadi/core/src/main/java/org/onap/aaf/cadi/wsse/WSSEParser.java

   1 /**
   2  * ============LICENSE_START====================================================
   3  * org.onap.aaf
   4  * ===========================================================================
   5  * Copyright (c) 2018 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
  22 package org.onap.aaf.cadi.wsse;
  23
  24 import java.io.InputStream;
  25
  26 import javax.xml.stream.XMLStreamException;
  27
  28 import org.onap.aaf.cadi.BasicCred;
  29
  30
  31 /**
  32  * WSSE Parser
  33  *
  34  * Read the User and Password from WSSE Formatted SOAP Messages
  35  *
  36  * This class uses StAX so that processing is stopped as soon as the Security User/Password are read into BasicCred, or the Header Ends
  37  *
  38  * This class is intended to be created once (or very few times) and reused as much as possible.
  39  *
  40  * It is as thread safe as StAX parsing is.
  41  *
  42  * @author Jonathan
  43  */
  44 public class WSSEParser {
  45         private static final String SOAP_NS = "http://schemas.xmlsoap.org/soap/envelope/";
  46         private static final String WSSE_NS = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd";
  47         private Match<BasicCred> parseTree;
  48
  49         public WSSEParser() {
  50                 // soap:Envelope/soap:Header/wsse:Security/wsse:UsernameToken/[wsse:Password&wsse:Username]
  51                 parseTree = new Match<BasicCred>(SOAP_NS,"root", // need a root level to start from... Doesn't matter what the tag is
  52                         new Match<BasicCred>(SOAP_NS,"Envelope",
  53                                 new Match<BasicCred>(SOAP_NS,"Header",
  54                                         new Match<BasicCred>(WSSE_NS,"Security",
  55                                                 new Match<BasicCred>(WSSE_NS,"UsernameToken",
  56                                                         new Match<BasicCred>(WSSE_NS,"Password").set(new Action<BasicCred>() {
  57                                                                 public boolean content(BasicCred bc,String text) {
  58                                                                         bc.setCred(text.getBytes());
  59                                                                         return true;
  60                                                                 }
  61                                                         }),
  62                                                         new Match<BasicCred>(WSSE_NS,"Username").set(new Action<BasicCred>() {
  63                                                                 public boolean content(BasicCred bc,String text) {
  64                                                                         bc.setUser(text);
  65                                                                         return true;
  66                                                                 }
  67                                                         })
  68                                                 ).stopAfter() // if found, end when UsernameToken ends (no further processing needed)
  69                                         )
  70                                 ).stopAfter() // Stop Processing when Header Ends
  71                         ).exclusive()// Envelope must match Header, and no other.  FYI, Body comes after Header short circuits (see above), so it's ok
  72                 ).exclusive(); // root must be Envelope
  73         }
  74
  75         public XMLStreamException parse(BasicCred bc, InputStream is) {
  76                 try {
  77                         parseTree.onMatch(bc, new XReader(is));
  78                         return null;
  79                 } catch (XMLStreamException e) {
  80                         return e;
  81                 }
  82         }
  83 }