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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.drill.exec.server.rest.auth;
import org.apache.drill.exec.server.rest.WebServerConstants;
import org.glassfish.jersey.server.model.AnnotatedMethod;
import javax.annotation.Priority;
import javax.annotation.security.PermitAll;
import javax.annotation.security.RolesAllowed;
import javax.ws.rs.Priorities;
import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.DynamicFeature;
import javax.ws.rs.container.ResourceInfo;
import javax.ws.rs.core.FeatureContext;
import javax.ws.rs.core.Response;
import javax.ws.rs.core.SecurityContext;
import java.io.IOException;
import java.net.URI;
import java.net.URLEncoder;
/**
* Implementation of {@link DynamicFeature}. As part of the setup it adds the auth check filter {@link AuthCheckFilter}
* for resources that need to have user authenticated. If authentication is not done, request is forwarded to login
* page.
*/
public class AuthDynamicFeature implements DynamicFeature {
private static final org.slf4j.Logger logger = org.slf4j.LoggerFactory.getLogger(AuthDynamicFeature.class);
@Override
public void configure(final ResourceInfo resourceInfo, final FeatureContext configuration) {
AnnotatedMethod am = new AnnotatedMethod(resourceInfo.getResourceMethod());
// RolesAllowed on the method takes precedence over PermitAll
RolesAllowed ra = am.getAnnotation(RolesAllowed.class);
if (ra != null) {
configuration.register(AuthCheckFilter.INSTANCE);
return;
}
// PermitAll takes precedence over RolesAllowed on the class
// This avoids putting AuthCheckFilter in the request flow for all path's which
// are defined under PermitAll annotation. That is requests for "/", "/login", "/mainLogin" and "/spnegoLogin"
// path's doesn't go through AuthCheckFilter.
if (am.isAnnotationPresent(PermitAll.class)) {
// Do nothing.
return;
}
// RolesAllowed on the class takes precedence over PermitAll
ra = resourceInfo.getResourceClass().getAnnotation(RolesAllowed.class);
if (ra != null) {
configuration.register(AuthCheckFilter.INSTANCE);
}
}
@Priority(Priorities.AUTHENTICATION) // authentication filter - should go first before all other filters.
private static class AuthCheckFilter implements ContainerRequestFilter {
private static AuthCheckFilter INSTANCE = new AuthCheckFilter();
@Override
public void filter(ContainerRequestContext requestContext) throws IOException {
final SecurityContext sc = requestContext.getSecurityContext();
if (!isUserLoggedIn(sc)) {
try {
final String destResource =
URLEncoder.encode(requestContext.getUriInfo().getRequestUri().toString(), "UTF-8");
final URI loginURI = requestContext.getUriInfo().getBaseUriBuilder()
.path(WebServerConstants.MAIN_LOGIN_RESOURCE_NAME)
.queryParam(WebServerConstants.REDIRECT_QUERY_PARM, destResource)
.build();
requestContext.abortWith(Response.temporaryRedirect(loginURI).build()
);
} catch (final Exception ex) {
final String errMsg = String.format("Failed to forward the request to login page: %s", ex.getMessage());
logger.error(errMsg, ex);
requestContext.abortWith(
Response.serverError()
.entity(errMsg)
.build());
}
}
}
}
public static boolean isUserLoggedIn(final SecurityContext sc) {
return sc != null && sc.getUserPrincipal() != null;
}
}
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