| /** |
| * 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.message; |
| |
| import java.nio.file.Path; |
| import java.util.List; |
| |
| import javax.security.auth.callback.CallbackHandler; |
| |
| import org.apache.wss4j.common.cache.EHCacheReplayCache; |
| import org.apache.wss4j.dom.WSConstants; |
| import org.apache.wss4j.dom.common.KeystoreCallbackHandler; |
| import org.apache.wss4j.dom.common.SAML2CallbackHandler; |
| import org.apache.wss4j.dom.common.SOAPUtil; |
| |
| import org.apache.wss4j.dom.common.UsernamePasswordCallbackHandler; |
| import org.apache.wss4j.dom.engine.WSSConfig; |
| import org.apache.wss4j.dom.engine.WSSecurityEngine; |
| import org.apache.wss4j.common.WSEncryptionPart; |
| import org.apache.wss4j.common.cache.MemoryReplayCache; |
| import org.apache.wss4j.common.cache.ReplayCache; |
| import org.apache.wss4j.common.crypto.Crypto; |
| import org.apache.wss4j.common.crypto.CryptoFactory; |
| import org.apache.wss4j.common.ext.WSSecurityException; |
| import org.apache.wss4j.common.saml.SAMLCallback; |
| import org.apache.wss4j.common.saml.SAMLUtil; |
| import org.apache.wss4j.common.saml.SamlAssertionWrapper; |
| import org.apache.wss4j.common.saml.bean.ConditionsBean; |
| import org.apache.wss4j.common.saml.builder.SAML2Constants; |
| import org.apache.wss4j.common.util.XMLUtils; |
| import org.apache.wss4j.dom.handler.RequestData; |
| import org.apache.wss4j.dom.handler.WSHandlerResult; |
| import org.apache.wss4j.dom.util.WSSecurityUtil; |
| import org.apache.wss4j.dom.validate.SamlAssertionValidator; |
| |
| import org.junit.jupiter.api.Test; |
| import org.junit.jupiter.api.io.TempDir; |
| import org.w3c.dom.Document; |
| import org.w3c.dom.Element; |
| |
| import static org.junit.jupiter.api.Assertions.assertTrue; |
| import static org.junit.jupiter.api.Assertions.fail; |
| |
| /** |
| * Some test-cases for replay attacks. |
| */ |
| public class ReplayTest { |
| private static final org.slf4j.Logger LOG = |
| org.slf4j.LoggerFactory.getLogger(ReplayTest.class); |
| |
| private CallbackHandler callbackHandler = new KeystoreCallbackHandler(); |
| private Crypto crypto; |
| |
| @TempDir |
| Path tempDir; |
| |
| public ReplayTest() throws Exception { |
| crypto = CryptoFactory.getInstance(); |
| } |
| |
| private ReplayCache createCache(String key) throws WSSecurityException { |
| return new EHCacheReplayCache(key, tempDir); |
| } |
| |
| @Test |
| public void testReplayedTimestamp() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(300); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.prepare(crypto); |
| |
| List<javax.xml.crypto.dsig.Reference> referenceList = |
| builder.addReferencesToSign(builder.getParts()); |
| |
| builder.computeSignature(referenceList, false, null); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| data.setTimestampReplayCache(new MemoryReplayCache()); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| } |
| |
| @Test |
| public void testEhCacheReplayedTimestamp() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(300); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.prepare(crypto); |
| |
| List<javax.xml.crypto.dsig.Reference> referenceList = |
| builder.addReferencesToSign(builder.getParts()); |
| |
| builder.computeSignature(referenceList, false, null); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| ReplayCache replayCache = createCache("wss4j.timestamp.cache-"); |
| data.setTimestampReplayCache(replayCache); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| |
| replayCache.close(); |
| } |
| |
| @Test |
| public void testReplayedTimestampBelowSignature() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(300); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.build(crypto); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| data.setTimestampReplayCache(new MemoryReplayCache()); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| } |
| |
| @Test |
| public void testEhCacheReplayedTimestampBelowSignature() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(300); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.build(crypto); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| ReplayCache replayCache = createCache("wss4j.timestamp.cache-"); |
| data.setTimestampReplayCache(replayCache); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| |
| replayCache.close(); |
| } |
| |
| @Test |
| public void testReplayedTimestampNoExpires() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(0); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.prepare(crypto); |
| |
| List<javax.xml.crypto.dsig.Reference> referenceList = |
| builder.addReferencesToSign(builder.getParts()); |
| |
| builder.computeSignature(referenceList, false, null); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| data.setTimestampReplayCache(new MemoryReplayCache()); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| } |
| |
| @Test |
| public void testEhCacheReplayedTimestampNoExpires() throws Exception { |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecTimestamp timestamp = new WSSecTimestamp(secHeader); |
| timestamp.setTimeToLive(0); |
| Document createdDoc = timestamp.build(); |
| |
| WSSecSignature builder = new WSSecSignature(secHeader); |
| builder.setUserInfo("16c73ab6-b892-458f-abf5-2f875f74882e", "security"); |
| builder.setKeyIdentifierType(WSConstants.ISSUER_SERIAL); |
| |
| WSEncryptionPart encP = |
| new WSEncryptionPart( |
| "Timestamp", WSConstants.WSU_NS, ""); |
| builder.getParts().add(encP); |
| |
| builder.prepare(crypto); |
| |
| List<javax.xml.crypto.dsig.Reference> referenceList = |
| builder.addReferencesToSign(builder.getParts()); |
| |
| builder.computeSignature(referenceList, false, null); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(createdDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| ReplayCache replayCache = createCache("wss4j.timestamp.cache-"); |
| data.setTimestampReplayCache(replayCache); |
| |
| // Successfully verify timestamp |
| verify(createdDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(createdDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| |
| replayCache.close(); |
| } |
| |
| @Test |
| public void testReplayedUsernameToken() throws Exception { |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecUsernameToken builder = new WSSecUsernameToken(secHeader); |
| builder.setUserInfo("wernerd", "verySecret"); |
| |
| Document signedDoc = builder.build(); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(signedDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setCallbackHandler(new UsernamePasswordCallbackHandler()); |
| data.setWssConfig(wssConfig); |
| data.setNonceReplayCache(new MemoryReplayCache()); |
| |
| // Successfully verify UsernameToken |
| verify(signedDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(signedDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| } |
| |
| @Test |
| public void testEhCacheReplayedUsernameToken() throws Exception { |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecUsernameToken builder = new WSSecUsernameToken(secHeader); |
| builder.setUserInfo("wernerd", "verySecret"); |
| |
| Document signedDoc = builder.build(); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = |
| XMLUtils.prettyDocumentToString(signedDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| RequestData data = new RequestData(); |
| data.setCallbackHandler(new UsernamePasswordCallbackHandler()); |
| data.setWssConfig(wssConfig); |
| ReplayCache replayCache = createCache("wss4j.nonce.cache-"); |
| data.setNonceReplayCache(replayCache); |
| |
| // Successfully verify UsernameToken |
| verify(signedDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(signedDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| |
| replayCache.close(); |
| } |
| |
| /** |
| * Test that creates, sends and processes an unsigned SAML 2 authentication assertion. This |
| * is just a sanity test to make sure that it is possible to send the SAML token twice, as |
| * no "OneTimeUse" Element is defined there is no problem with replaying it. |
| * with a OneTimeUse Element |
| */ |
| @Test |
| public void testEhCacheReplayedSAML2() throws Exception { |
| SAML2CallbackHandler callbackHandler = new SAML2CallbackHandler(); |
| callbackHandler.setStatement(SAML2CallbackHandler.Statement.AUTHN); |
| callbackHandler.setIssuer("www.example.com"); |
| callbackHandler.setConfirmationMethod(SAML2Constants.CONF_BEARER); |
| |
| ConditionsBean conditions = new ConditionsBean(); |
| conditions.setTokenPeriodMinutes(5); |
| |
| callbackHandler.setConditions(conditions); |
| |
| SAMLCallback samlCallback = new SAMLCallback(); |
| SAMLUtil.doSAMLCallback(callbackHandler, samlCallback); |
| SamlAssertionWrapper samlAssertion = new SamlAssertionWrapper(samlCallback); |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecSAMLToken wsSign = new WSSecSAMLToken(secHeader); |
| |
| Document unsignedDoc = wsSign.build(samlAssertion); |
| |
| if (LOG.isDebugEnabled()) { |
| String outputString = XMLUtils.prettyDocumentToString(unsignedDoc); |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| SamlAssertionValidator assertionValidator = new SamlAssertionValidator(); |
| assertionValidator.setRequireBearerSignature(false); |
| wssConfig.setValidator(WSConstants.SAML_TOKEN, assertionValidator); |
| wssConfig.setValidator(WSConstants.SAML2_TOKEN, assertionValidator); |
| |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| ReplayCache replayCache = createCache("wss4j.saml.one.time.use.cache-"); |
| data.setSamlOneTimeUseReplayCache(replayCache); |
| |
| // Successfully verify SAML Token |
| verify(unsignedDoc, wssConfig, data); |
| |
| // Now try again - this should work fine as well |
| verify(unsignedDoc, wssConfig, data); |
| |
| replayCache.close(); |
| } |
| |
| /** |
| * Test that creates, sends and processes an unsigned SAML 2 authentication assertion |
| * with a OneTimeUse Element |
| */ |
| @Test |
| public void testEhCacheReplayedSAML2OneTimeUse() throws Exception { |
| SAML2CallbackHandler callbackHandler = new SAML2CallbackHandler(); |
| callbackHandler.setStatement(SAML2CallbackHandler.Statement.AUTHN); |
| callbackHandler.setIssuer("www.example.com"); |
| callbackHandler.setConfirmationMethod(SAML2Constants.CONF_BEARER); |
| |
| ConditionsBean conditions = new ConditionsBean(); |
| conditions.setTokenPeriodMinutes(5); |
| conditions.setOneTimeUse(true); |
| |
| callbackHandler.setConditions(conditions); |
| |
| SAMLCallback samlCallback = new SAMLCallback(); |
| SAMLUtil.doSAMLCallback(callbackHandler, samlCallback); |
| SamlAssertionWrapper samlAssertion = new SamlAssertionWrapper(samlCallback); |
| |
| Document doc = SOAPUtil.toSOAPPart(SOAPUtil.SAMPLE_SOAP_MSG); |
| WSSecHeader secHeader = new WSSecHeader(doc); |
| secHeader.insertSecurityHeader(); |
| |
| WSSecSAMLToken wsSign = new WSSecSAMLToken(secHeader); |
| |
| Document unsignedDoc = wsSign.build(samlAssertion); |
| |
| String outputString = |
| XMLUtils.prettyDocumentToString(unsignedDoc); |
| assertTrue(outputString.contains("OneTimeUse")); |
| if (LOG.isDebugEnabled()) { |
| LOG.debug(outputString); |
| } |
| |
| WSSConfig wssConfig = WSSConfig.getNewInstance(); |
| SamlAssertionValidator assertionValidator = new SamlAssertionValidator(); |
| assertionValidator.setRequireBearerSignature(false); |
| wssConfig.setValidator(WSConstants.SAML_TOKEN, assertionValidator); |
| wssConfig.setValidator(WSConstants.SAML2_TOKEN, assertionValidator); |
| |
| RequestData data = new RequestData(); |
| data.setWssConfig(wssConfig); |
| data.setCallbackHandler(callbackHandler); |
| ReplayCache replayCache = createCache("wss4j.saml.one.time.use.cache-"); |
| data.setSamlOneTimeUseReplayCache(replayCache); |
| |
| // Successfully verify SAML Token |
| verify(unsignedDoc, wssConfig, data); |
| |
| // Now try again - a replay attack should be detected |
| try { |
| verify(unsignedDoc, wssConfig, data); |
| fail("Expected failure on a replay attack"); |
| } catch (WSSecurityException ex) { |
| assertTrue(ex.getErrorCode() == WSSecurityException.ErrorCode.INVALID_SECURITY); |
| } |
| |
| replayCache.close(); |
| } |
| |
| /** |
| * Verifies the soap envelope |
| * |
| * @param env soap envelope |
| * @param wssConfig |
| * @throws java.lang.Exception Thrown when there is a problem in verification |
| */ |
| private WSHandlerResult verify( |
| Document doc, WSSConfig wssConfig, RequestData data |
| ) throws Exception { |
| WSSecurityEngine secEngine = new WSSecurityEngine(); |
| secEngine.setWssConfig(wssConfig); |
| Element elem = WSSecurityUtil.getSecurityHeader(doc, null); |
| data.setSigVerCrypto(crypto); |
| return secEngine.processSecurityHeader(elem, data); |
| } |
| |
| |
| } |