/**
* 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.cxf.rs.security.oauth2.services;
import java.security.Principal;
import java.security.cert.Certificate;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.List;
import javax.security.auth.x500.X500Principal;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.MultivaluedMap;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.Response.ResponseBuilder;
import javax.ws.rs.core.SecurityContext;
import org.apache.cxf.common.util.Base64Utility;
import org.apache.cxf.common.util.StringUtils;
import org.apache.cxf.jaxrs.utils.ExceptionUtils;
import org.apache.cxf.jaxrs.utils.JAXRSUtils;
import org.apache.cxf.rs.security.oauth2.common.Client;
import org.apache.cxf.rs.security.oauth2.common.OAuthError;
import org.apache.cxf.rs.security.oauth2.provider.ClientIdProvider;
import org.apache.cxf.rs.security.oauth2.provider.OAuthServiceException;
import org.apache.cxf.rs.security.oauth2.utils.AuthorizationUtils;
import org.apache.cxf.rs.security.oauth2.utils.OAuthConstants;
import org.apache.cxf.security.transport.TLSSessionInfo;
public class AbstractTokenService extends AbstractOAuthService {
private boolean canSupportPublicClients;
private boolean writeCustomErrors;
private ClientIdProvider clientIdProvider;
/**
* Make sure the client is authenticated
*/
protected Client authenticateClientIfNeeded(MultivaluedMap<String, String> params) {
Client client = null;
SecurityContext sc = getMessageContext().getSecurityContext();
Principal principal = sc.getUserPrincipal();
if (principal == null) {
String clientId = retrieveClientId(params);
if (clientId != null) {
client = getAndValidateClientFromIdAndSecret(clientId,
params.getFirst(OAuthConstants.CLIENT_SECRET));
}
} else if (principal.getName() != null) {
client = getClient(principal.getName());
} else {
String clientId = retrieveClientId(params);
if (clientId != null) {
client = getClient(clientId);
}
}
if (client == null) {
client = getClientFromTLSCertificates(sc, getTlsSessionInfo());
if (client == null) {
// Basic Authentication is expected by default
client = getClientFromBasicAuthScheme();
}
}
if (client != null && !client.getApplicationCertificates().isEmpty()) {
// Validate the client application certificates
compareTlsCertificates(getTlsSessionInfo(), client.getApplicationCertificates());
}
if (client == null) {
reportInvalidClient();
}
return client;
}
private TLSSessionInfo getTlsSessionInfo() {
return (TLSSessionInfo)getMessageContext().get(TLSSessionInfo.class.getName());
}
protected String retrieveClientId(MultivaluedMap<String, String> params) {
String clientId = params.getFirst(OAuthConstants.CLIENT_ID);
if (clientId == null) {
clientId = (String)getMessageContext().get(OAuthConstants.CLIENT_ID);
}
if (clientId == null && clientIdProvider != null) {
clientId = clientIdProvider.getClientId(getMessageContext());
}
return clientId;
}
// Get the Client and check the id and secret
protected Client getAndValidateClientFromIdAndSecret(String clientId, String clientSecret) {
Client client = getClient(clientId);
if (canSupportPublicClients
&& !client.isConfidential()
&& client.getClientSecret() == null
&& clientSecret == null) {
return client;
}
if (clientSecret == null || client.getClientSecret() == null
|| !client.getClientId().equals(clientId)
|| !client.getClientSecret().equals(clientSecret)) {
throw ExceptionUtils.toNotAuthorizedException(null, null);
}
return client;
}
protected Client getClientFromBasicAuthScheme() {
String[] parts = AuthorizationUtils.getAuthorizationParts(getMessageContext());
if (OAuthConstants.BASIC_SCHEME.equalsIgnoreCase(parts[0])) {
String[] authInfo = AuthorizationUtils.getBasicAuthParts(parts[1]);
return getAndValidateClientFromIdAndSecret(authInfo[0], authInfo[1]);
} else {
return null;
}
}
protected Client getClientFromTLSCertificates(SecurityContext sc, TLSSessionInfo tlsSessionInfo) {
Client client = null;
if (tlsSessionInfo != null && StringUtils.isEmpty(sc.getAuthenticationScheme())) {
// Pure 2-way TLS authentication
String clientId = getClientIdFromTLSCertificates(sc, tlsSessionInfo);
if (!StringUtils.isEmpty(clientId)) {
client = getClient(clientId);
}
}
return client;
}
protected String getClientIdFromTLSCertificates(SecurityContext sc, TLSSessionInfo tlsInfo) {
Certificate[] clientCerts = tlsInfo.getPeerCertificates();
if (clientCerts != null && clientCerts.length > 0) {
X500Principal x509Principal = ((X509Certificate)clientCerts[0]).getSubjectX500Principal();
return x509Principal.getName();
}
return null;
}
protected void compareTlsCertificates(TLSSessionInfo tlsInfo,
List<String> base64EncodedCerts) {
if (tlsInfo != null) {
Certificate[] clientCerts = tlsInfo.getPeerCertificates();
if (clientCerts.length == base64EncodedCerts.size()) {
try {
for (int i = 0; i < clientCerts.length; i++) {
X509Certificate x509Cert = (X509Certificate)clientCerts[i];
byte[] encodedKey = x509Cert.getEncoded();
byte[] clientKey = Base64Utility.decode(base64EncodedCerts.get(i));
if (!Arrays.equals(encodedKey, clientKey)) {
reportInvalidClient();
}
}
return;
} catch (Exception ex) {
// throw exception later
}
}
}
reportInvalidClient();
}
protected Response handleException(OAuthServiceException ex, String error) {
OAuthError customError = ex.getError();
if (writeCustomErrors && customError != null) {
return createErrorResponseFromBean(customError);
} else {
return createErrorResponseFromBean(new OAuthError(error));
}
}
protected Response createErrorResponse(MultivaluedMap<String, String> params,
String error) {
return createErrorResponseFromBean(new OAuthError(error));
}
protected Response createErrorResponseFromBean(OAuthError errorBean) {
return JAXRSUtils.toResponseBuilder(400).entity(errorBean).build();
}
/**
* Get the {@link Client} reference
* @param clientId the provided client id
* @return Client the client reference
* @throws {@link javax.ws.rs.WebApplicationException} if no matching Client is found
*/
protected Client getClient(String clientId) {
if (clientId == null) {
reportInvalidRequestError("Client ID is null");
return null;
}
Client client = null;
try {
client = getValidClient(clientId);
} catch (OAuthServiceException ex) {
if (ex.getError() != null) {
reportInvalidClient(ex.getError());
return null;
}
}
if (client == null) {
reportInvalidClient();
}
return client;
}
protected void reportInvalidClient() {
reportInvalidClient(new OAuthError(OAuthConstants.INVALID_CLIENT));
}
protected void reportInvalidClient(OAuthError error) {
ResponseBuilder rb = JAXRSUtils.toResponseBuilder(401);
throw ExceptionUtils.toNotAuthorizedException(null,
rb.type(MediaType.APPLICATION_JSON_TYPE).entity(error).build());
}
public void setCanSupportPublicClients(boolean support) {
this.canSupportPublicClients = support;
}
public boolean isCanSupportPublicClients() {
return canSupportPublicClients;
}
public void setWriteCustomErrors(boolean writeCustomErrors) {
this.writeCustomErrors = writeCustomErrors;
}
public void setClientIdProvider(ClientIdProvider clientIdProvider) {
this.clientIdProvider = clientIdProvider;
}
}