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//--- BEGIN COPYRIGHT BLOCK ---
//This program is free software; you can redistribute it and/or modify
//it under the terms of the GNU General Public License as published by
//the Free Software Foundation; version 2 of the License.
//
//This program 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 General Public License for more details.
//
//You should have received a copy of the GNU General Public License along
//with this program; if not, write to the Free Software Foundation, Inc.,
//51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
//
//(C) 2013 Red Hat, Inc.
//All rights reserved.
//--- END COPYRIGHT BLOCK ---
package com.netscape.certsrv.authentication;
import java.io.IOException;
import java.lang.reflect.Method;
import java.net.URL;
import java.security.Principal;
import java.util.Collection;
import java.util.HashSet;
import java.util.Properties;
import javax.servlet.ServletContext;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.ext.Provider;
import org.jboss.resteasy.annotations.interception.Precedence;
import org.jboss.resteasy.annotations.interception.ServerInterceptor;
import org.jboss.resteasy.core.ResourceMethod;
import org.jboss.resteasy.core.ServerResponse;
import org.jboss.resteasy.spi.Failure;
import org.jboss.resteasy.spi.HttpRequest;
import org.jboss.resteasy.spi.interception.PreProcessInterceptor;
import com.netscape.certsrv.base.ForbiddenException;
import com.netscape.cmscore.realm.PKIPrincipal;
/**
* @author Endi S. Dewata
*/
@Provider
@ServerInterceptor
@Precedence("SECURITY")
public class AuthInterceptor implements PreProcessInterceptor {
Properties authProperties;
@Context
ServletContext servletContext;
@Context
SecurityContext securityContext;
public synchronized void loadAuthProperties() throws IOException {
if (authProperties != null) return;
URL url = servletContext.getResource("/WEB-INF/auth.properties");
authProperties = new Properties();
authProperties.load(url.openStream());
}
@Override
public ServerResponse preProcess(
HttpRequest request,
ResourceMethod resourceMethod
) throws Failure, ForbiddenException {
Class<?> clazz = resourceMethod.getResourceClass();
Method method = resourceMethod.getMethod();
System.out.println("AuthInterceptor: invoking "+clazz.getSimpleName()+"."+method.getName()+"()");
// Get authentication mapping for the method.
System.out.println("AuthInterceptor: checking method mapping");
AuthMapping authMapping = method.getAnnotation(AuthMapping.class);
// If not available, get authentication mapping for the class.
if (authMapping == null) {
System.out.println("AuthInterceptor: checking class mapping");
authMapping = clazz.getAnnotation(AuthMapping.class);
}
String name;
if (authMapping == null) {
// If not available, use the default mapping.
name = "default";
} else {
// Get the method label
name = authMapping.value();
}
System.out.println("AuthInterceptor: mapping ID: "+name);
try {
loadAuthProperties();
String value = authProperties.getProperty(name);
Collection<String> authMethods = new HashSet<String>();
if (value != null) {
for (String v : value.split(",")) {
authMethods.add(v.trim());
}
}
System.out.println("AuthInterceptor: auth methods: "+authMethods);
Principal principal = securityContext.getUserPrincipal();
// If unauthenticated, reject request.
if (principal == null) {
if (authMethods.isEmpty() || authMethods.contains("anonymous") || authMethods.contains("any")) {
System.out.println("AuthInterceptor: anonymous allowed");
return null;
}
System.out.println("AuthInterceptor: anonymous not allowed");
throw new ForbiddenException("No user principal provided.");
}
// If unrecognized principal, reject request.
if (!(principal instanceof PKIPrincipal)) {
System.out.println("AuthInterceptor: invalid principal");
throw new ForbiddenException("Invalid user principal");
}
PKIPrincipal pkiPrincipal = (PKIPrincipal)principal;
IAuthToken authToken = pkiPrincipal.getAuthToken();
// If missing auth token, reject request.
if (authToken == null) {
System.out.println("AuthInterceptor: missing authentication token");
throw new ForbiddenException("No authentication token present.");
}
Object authManager = authToken.get(AuthToken.TOKEN_AUTHMGR_INST_NAME);
System.out.println("Authentication manager: "+authManager);
// Allow request.
return null;
} catch (IOException e) {
e.printStackTrace();
throw new Failure(e);
}
}
}
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