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/*
* 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.tuscany.sca.policy.security.geronimo;
import java.security.AccessControlContext;
import java.util.List;
import javax.security.auth.Subject;
import javax.security.auth.callback.CallbackHandler;
import javax.security.auth.login.FailedLoginException;
import javax.security.auth.login.LoginContext;
import javax.security.auth.login.LoginException;
import javax.security.jacc.WebRoleRefPermission;
import org.apache.geronimo.security.ContextManager;
import org.apache.tuscany.sca.invocation.Message;
import org.apache.tuscany.sca.policy.authorization.AuthorizationPolicy;
import org.apache.tuscany.sca.policy.security.http.LDAPRealmAuthenticationCallbackHandler;
import org.apache.tuscany.sca.policy.security.http.LDAPRealmAuthenticationPolicy;
import org.apache.tuscany.sca.policy.security.http.extensibility.LDAPSecurityHandler;
import org.apache.tuscany.sca.policy.security.http.util.HttpSecurityUtil;
public class GeronimoLDAPSecurityHandler implements LDAPSecurityHandler {
public GeronimoLDAPSecurityHandler() {
}
/**
* The Http Service calls this method prior to servicing the specified request.
* This method controls whether the request is processed in the normal manner
* or an error is returned.
*
* If the request requires authentication and the Authorization header
* in the request is missing or not acceptable, then this method should
* set the WWW-Authenticate header in the response object, set the status
* in the response object to Unauthorized(401) and return false.
* See also RFC 2617: HTTP Authentication: Basic and Digest Access Authentication
* (available at http://www.ietf.org/rfc/rfc2617.txt).
*
* If the request requires a secure connection and the getScheme method
* in the request does not return 'https' or some other acceptable secure protocol,
* then this method should set the status in the response object to Forbidden(403)
* and return false.
*
* When this method returns false, the Http Service will send the response back to
* the client, thereby completing the request. When this method returns true, the
* Http Service will proceed with servicing the request.
*
* If the specified request has been authenticated, this method must set the
* AUTHENTICATION_TYPE request attribute to the type of authentication used,
* and the REMOTE_USER request attribute to the remote user
* (request attributes are set using the setAttribute method on the request).
* If this method does not perform any authentication, it must not set these attributes.
*
* @param msg
* @return
*/
public void handleSecurity(Message msg,
List<LDAPRealmAuthenticationPolicy> authenticationPolicies,
List<AuthorizationPolicy> authorizationPolicies) throws javax.security.auth.login.LoginException {
Subject subject = null;
Subject authenticatedSubject = null;
// Perform user authentication
LDAPRealmAuthenticationPolicy authenticationPolicy = authenticationPolicies.get(0);
if( authenticationPolicy != null) {
subject = HttpSecurityUtil.getSubject(msg);
CallbackHandler callbackHandler = new LDAPRealmAuthenticationCallbackHandler(subject);
/* Uses Geronimo to login */
try {
LoginContext geronimoLoginContext = ContextManager.login(authenticationPolicy.getRealmConfigurationName(), callbackHandler);
authenticatedSubject = geronimoLoginContext.getSubject();
ContextManager.setCallers(authenticatedSubject, authenticatedSubject);
if (authenticatedSubject != null) {
//TODO: add authenticated subject to the msg header ?
}
} catch(LoginException le) {
throw new FailedLoginException("Login failed: " + le.getMessage());
}
}
AuthorizationPolicy authorizationPolicy = authorizationPolicies.get(0);
if(authorizationPolicy != null) {
if(authorizationPolicy.getAccessControl() == AuthorizationPolicy.AcessControl.allow) {
/* Geronimo Specific code */
AccessControlContext acc = ContextManager.getCurrentContext();
boolean isAllowed = false;
for (String requiredRole : authorizationPolicy.getRoleNames()) {
isAllowed = isUserInRole(acc, requiredRole);
if(isAllowed) {
break;
}
}
if(! isAllowed ) {
throw new javax.security.auth.login.LoginException("Insufficient access rights !");
}
}
}
}
public boolean isUserInRole(AccessControlContext acc, String role) {
/* Geronimo Specific code */
try {
acc.checkPermission(new WebRoleRefPermission("", role));
} catch (Exception e) {
return false;
}
return true;
}
}
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