/*
* JBoss, Home of Professional Open Source.
* Copyright 2013, Red Hat, Inc., and individual contributors
* as indicated by the @author tags. See the copyright.txt file in the
* distribution for a full listing of individual contributors.
*
* This is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this software; if not, write to the Free
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
* 02110-1301 USA, or see the FSF site: http://www.fsf.org.
*/
package org.wildfly.extension.undertow.security;
import io.undertow.predicate.Predicates;
import io.undertow.server.HandlerWrapper;
import io.undertow.server.HttpHandler;
import io.undertow.server.HttpServerExchange;
import io.undertow.server.handlers.PredicateHandler;
import io.undertow.servlet.handlers.ServletChain;
import io.undertow.servlet.handlers.ServletRequestContext;
import io.undertow.servlet.predicate.DispatcherTypePredicate;
import org.jboss.metadata.javaee.jboss.RunAsIdentityMetaData;
import org.jboss.security.RunAs;
import org.jboss.security.RunAsIdentity;
import org.jboss.security.SecurityContext;
import org.wildfly.extension.undertow.logging.UndertowLogger;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Map;
import javax.servlet.ServletRequest;
public class SecurityContextAssociationHandler implements HttpHandler {
private final Map<String, RunAsIdentityMetaData> runAsIdentityMetaDataMap;
private final HttpHandler next;
private static final PrivilegedAction<ServletRequestContext> CURRENT_CONTEXT = new PrivilegedAction<ServletRequestContext>() {
@Override
public ServletRequestContext run() {
return ServletRequestContext.current();
}
};
public SecurityContextAssociationHandler(final Map<String, RunAsIdentityMetaData> runAsIdentityMetaDataMap, final HttpHandler next) {
this.runAsIdentityMetaDataMap = runAsIdentityMetaDataMap;
this.next = next;
}
@Override
public void handleRequest(final HttpServerExchange exchange) throws Exception {
SecurityContext sc = exchange.getAttachment(UndertowSecurityAttachments.SECURITY_CONTEXT_ATTACHMENT);
RunAsIdentityMetaData identity = null;
RunAs old = null;
try {
final ServletChain servlet = exchange.getAttachment(ServletRequestContext.ATTACHMENT_KEY).getCurrentServlet();
identity = runAsIdentityMetaDataMap.get(servlet.getManagedServlet().getServletInfo().getName());
RunAsIdentity runAsIdentity = null;
if (identity != null) {
UndertowLogger.ROOT_LOGGER.tracef("%s, runAs: %s", servlet.getManagedServlet().getServletInfo().getName(), identity);
runAsIdentity = new RunAsIdentity(identity.getRoleName(), identity.getPrincipalName(), identity.getRunAsRoles());
}
old = SecurityActions.setRunAsIdentity(runAsIdentity, sc);
// Perform the request
next.handleRequest(exchange);
} finally {
if (identity != null) {
SecurityActions.setRunAsIdentity(old, sc);
}
}
}
public static HandlerWrapper wrapper(final Map<String, RunAsIdentityMetaData> runAsIdentityMetaDataMap) {
return new HandlerWrapper() {
@Override
public HttpHandler wrap(final HttpHandler handler) {
//we only run this on REQUEST or ASYNC invocations
return new PredicateHandler(Predicates.or(DispatcherTypePredicate.REQUEST, DispatcherTypePredicate.ASYNC), new SecurityContextAssociationHandler(runAsIdentityMetaDataMap, handler), handler);
}
};
}
public static ServletRequest getActiveRequest() {
ServletRequestContext current;
if(System.getSecurityManager() == null) {
current = ServletRequestContext.current();
} else {
current = AccessController.doPrivileged(CURRENT_CONTEXT);
}
if(current == null) {
return null;
}
return current.getServletRequest();
}
}