| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package org.apache.wss4j.dom.processor; |
| |
| import org.apache.wss4j.dom.WSConstants; |
| import org.apache.wss4j.dom.engine.WSSecurityEngineResult; |
| import org.apache.wss4j.common.ext.WSPasswordCallback; |
| import org.apache.wss4j.common.ext.WSSecurityException; |
| import org.apache.wss4j.common.util.XMLUtils; |
| import org.apache.wss4j.dom.handler.RequestData; |
| import org.apache.wss4j.dom.message.token.SecurityContextToken; |
| import org.apache.wss4j.dom.validate.Credential; |
| import org.apache.wss4j.dom.validate.Validator; |
| import org.w3c.dom.Element; |
| |
| import javax.security.auth.callback.Callback; |
| import javax.security.auth.callback.CallbackHandler; |
| import javax.security.auth.callback.UnsupportedCallbackException; |
| import javax.xml.namespace.QName; |
| |
| import java.util.List; |
| import java.io.IOException; |
| |
| /** |
| * The processor to process <code>wsc:SecurityContextToken</code>. |
| */ |
| public class SecurityContextTokenProcessor implements Processor { |
| |
| public List<WSSecurityEngineResult> handleToken( |
| Element elem, |
| RequestData data |
| ) throws WSSecurityException { |
| SecurityContextToken sct = new SecurityContextToken(elem); |
| |
| Validator validator = |
| data.getValidator(new QName(elem.getNamespaceURI(), elem.getLocalName())); |
| |
| WSSecurityEngineResult result = |
| new WSSecurityEngineResult(WSConstants.SCT, sct); |
| if (validator != null) { |
| // Hook to allow the user to validate the SecurityContextToken |
| Credential credential = new Credential(); |
| credential.setSecurityContextToken(sct); |
| |
| Credential returnedCredential = validator.validate(credential, data); |
| result.put(WSSecurityEngineResult.TAG_VALIDATED_TOKEN, Boolean.TRUE); |
| String tokenId = sct.getID(); |
| if (!"".equals(tokenId)) { |
| result.put(WSSecurityEngineResult.TAG_ID, tokenId); |
| } |
| result.put(WSSecurityEngineResult.TAG_SECRET, returnedCredential.getSecretKey()); |
| } else { |
| String id = sct.getID(); |
| id = XMLUtils.getIDFromReference(id); |
| |
| byte[] secret = null; |
| try { |
| secret = getSecret(data.getCallbackHandler(), sct.getIdentifier()); |
| } catch (WSSecurityException ex) { |
| secret = getSecret(data.getCallbackHandler(), id); |
| } |
| if (secret == null || secret.length == 0) { |
| secret = getSecret(data.getCallbackHandler(), id); |
| } |
| result.put(WSSecurityEngineResult.TAG_ID, sct.getID()); |
| result.put(WSSecurityEngineResult.TAG_SECRET, secret); |
| } |
| |
| data.getWsDocInfo().addTokenElement(elem); |
| data.getWsDocInfo().addResult(result); |
| return java.util.Collections.singletonList(result); |
| } |
| |
| /** |
| * Get the secret from the provided callback handler and return it. |
| * |
| * @param cb |
| * @param identifier |
| * @return The key collected using the callback handler |
| */ |
| private byte[] getSecret(CallbackHandler cb, String identifier) |
| throws WSSecurityException { |
| |
| if (cb == null) { |
| throw new WSSecurityException(WSSecurityException.ErrorCode.FAILURE, "noCallback"); |
| } |
| |
| WSPasswordCallback callback = |
| new WSPasswordCallback(identifier, WSPasswordCallback.SECURITY_CONTEXT_TOKEN); |
| try { |
| Callback[] callbacks = new Callback[]{callback}; |
| cb.handle(callbacks); |
| } catch (IOException | UnsupportedCallbackException e) { |
| throw new WSSecurityException( |
| WSSecurityException.ErrorCode.FAILURE, e, |
| "noKey", |
| new Object[] {identifier}); |
| } |
| |
| return callback.getKey(); |
| } |
| |
| } |