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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;
import org.apache.drill.shaded.guava.com.google.common.annotations.VisibleForTesting;
import org.apache.commons.lang3.StringUtils;
import org.apache.drill.common.config.DrillConfig;
import org.apache.drill.exec.ExecConstants;
import org.apache.drill.exec.server.rest.auth.AuthDynamicFeature;
import org.apache.drill.exec.server.rest.auth.DrillHttpSecurityHandlerProvider;
import org.apache.drill.exec.work.WorkManager;
import org.eclipse.jetty.security.authentication.FormAuthenticator;
import org.eclipse.jetty.util.security.Constraint;
import org.glassfish.jersey.server.mvc.Viewable;
import javax.annotation.security.PermitAll;
import javax.inject.Inject;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.ws.rs.GET;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.QueryParam;
import javax.ws.rs.core.Context;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.SecurityContext;
import javax.ws.rs.core.UriBuilder;
import javax.ws.rs.core.UriInfo;
import java.net.URI;
import java.net.URLDecoder;
import java.util.Set;
@Path(WebServerConstants.WEBSERVER_ROOT_PATH)
@PermitAll
public class LogInLogOutResources {
@Inject
WorkManager workManager;
/**
* Update the destination URI to be redirect URI if specified in the request URL so that after the login is
* successful, request is forwarded to redirect page.
*
* @param redirect - Redirect parameter in the request URI
* @param request - Http Servlet Request
* @throws Exception
*/
private void updateSessionRedirectInfo(String redirect, HttpServletRequest request) throws Exception {
if (!StringUtils.isEmpty(redirect)) {
// If the URL has redirect in it, set the redirect URI in session, so that after the login is successful, request
// is forwarded to the redirect page.
final HttpSession session = request.getSession(true);
final URI destURI = UriBuilder.fromUri(URLDecoder.decode(redirect, "UTF-8")).build();
session.setAttribute(FormAuthenticator.__J_URI, destURI.getPath());
}
}
@GET
@Path(WebServerConstants.FORM_LOGIN_RESOURCE_PATH)
@Produces(MediaType.TEXT_HTML)
public Viewable getLoginPage(@Context HttpServletRequest request, @Context HttpServletResponse response,
@Context SecurityContext sc, @Context UriInfo uriInfo,
@QueryParam(WebServerConstants.REDIRECT_QUERY_PARM) String redirect) throws Exception {
if (AuthDynamicFeature.isUserLoggedIn(sc)) {
// if the user is already login, forward the request to homepage.
request.getRequestDispatcher(WebServerConstants.WEBSERVER_ROOT_PATH).forward(request, response);
return null;
}
updateSessionRedirectInfo(redirect, request);
return ViewableWithPermissions.createLoginPage(null);
}
@GET
@Path(WebServerConstants.SPENGO_LOGIN_RESOURCE_PATH)
@Produces(MediaType.TEXT_HTML)
public Viewable getSpnegoLogin(@Context HttpServletRequest request, @Context HttpServletResponse response,
@Context SecurityContext sc, @Context UriInfo uriInfo,
@QueryParam(WebServerConstants.REDIRECT_QUERY_PARM) String redirect) throws Exception {
if (AuthDynamicFeature.isUserLoggedIn(sc)) {
request.getRequestDispatcher(WebServerConstants.WEBSERVER_ROOT_PATH).forward(request, response);
return null;
}
final String errorString = "Invalid SPNEGO credentials or SPNEGO is not configured";
final MainLoginPageModel model = new MainLoginPageModel(errorString);
return ViewableWithPermissions.createMainLoginPage(model);
}
// Request type is POST because POST request which contains the login credentials are invalid and the request is
// dispatched here directly.
@POST
@Path(WebServerConstants.FORM_LOGIN_RESOURCE_PATH)
@Produces(MediaType.TEXT_HTML)
public Viewable getLoginPageAfterValidationError() {
return ViewableWithPermissions.createLoginPage("Invalid username/password credentials.");
}
@GET
@Path(WebServerConstants.LOGOUT_RESOURCE_PATH)
public void logout(@Context HttpServletRequest req, @Context HttpServletResponse resp) throws Exception {
final HttpSession session = req.getSession();
if (session != null) {
session.invalidate();
}
req.getRequestDispatcher(WebServerConstants.WEBSERVER_ROOT_PATH).forward(req, resp);
}
@GET
@Path(WebServerConstants.MAIN_LOGIN_RESOURCE_PATH)
@Produces(MediaType.TEXT_HTML)
public Viewable getMainLoginPage(@Context HttpServletRequest request, @Context HttpServletResponse response,
@Context SecurityContext sc, @Context UriInfo uriInfo,
@QueryParam(WebServerConstants.REDIRECT_QUERY_PARM) String redirect) throws Exception {
updateSessionRedirectInfo(redirect, request);
final MainLoginPageModel model = new MainLoginPageModel(null);
return ViewableWithPermissions.createMainLoginPage(model);
}
/**
* This class should be public for it's method's to be accessible by mainLogin.ftl file
*/
@VisibleForTesting
public class MainLoginPageModel {
private final String error;
private final boolean authEnabled;
private final Set<String> configuredMechs;
MainLoginPageModel(String error) {
this.error = error;
final DrillConfig config = workManager.getContext().getConfig();
authEnabled = config.getBoolean(ExecConstants.USER_AUTHENTICATION_ENABLED);
configuredMechs = DrillHttpSecurityHandlerProvider.getHttpAuthMechanisms(config);
}
public boolean isSpnegoEnabled() {
return authEnabled && configuredMechs.contains(Constraint.__SPNEGO_AUTH);
}
public boolean isFormEnabled() {
return authEnabled && configuredMechs.contains(Constraint.__FORM_AUTH);
}
public String getError() {
return error;
}
}
}
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