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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.hive.service.auth.saml;
import com.google.common.base.Preconditions;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.hadoop.hive.conf.HiveConf;
import org.apache.http.HttpStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class HiveSamlHttpServlet extends HttpServlet {
private static final Logger LOG = LoggerFactory
.getLogger(HiveSamlHttpServlet.class);
private final HiveConf conf;
private final ISAMLAuthTokenGenerator tokenGenerator;
public HiveSamlHttpServlet(HiveConf conf) {
this.conf = Preconditions.checkNotNull(conf);
tokenGenerator = HiveSamlAuthTokenGenerator.get(conf);
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response) {
String nameId;
String relayState;
int port;
try {
relayState = HiveSamlRelayStateStore.get().getRelayStateInfo(request, response);
port = HiveSamlRelayStateStore.get().getRelayStateInfo(relayState).getPort();
} catch (HttpSamlAuthenticationException e) {
LOG.error("Invalid relay state" ,e);
response.setStatus(HttpStatus.SC_UNAUTHORIZED);
return;
}
try {
LOG.info("RelayState = {}. Driver side port on loopback address is {}", relayState,
port);
nameId = HiveSaml2Client.get(conf).validate(request, response);
} catch (HttpSamlAuthenticationException e) {
if (e instanceof HttpSamlNoGroupsMatchedException) {
LOG.error("Could not authenticate user since the groups didn't match", e);
} else {
LOG.error("SAML response could not be validated", e);
}
generateFormData(response, HiveSamlUtils.getLoopBackAddress(port), null, false,
"SAML assertion could not be validated. Check server logs for more details.");
return;
}
Preconditions.checkState(nameId != null);
LOG.info(
"Successfully validated saml response for user {}. Forwarding the token to port {}",
nameId, port);
generateFormData(response, HiveSamlUtils.getLoopBackAddress(port),
tokenGenerator.get(nameId, relayState), true, "");
}
private void generateFormData(HttpServletResponse response, String url, String token,
boolean success, String msg) {
StringBuilder sb = new StringBuilder();
sb.append("");
sb.append("");
sb.append(String.format("");
sb.append("");
sb.append("");
response.setContentType("text/html");
try {
response.getWriter().write(sb.toString());
response.getWriter().flush();
} catch (IOException e) {
LOG.error("Could not generate the form data for sending a response to url " + url,
e);
// if there is an error set a response code to internal error.
response.setStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR);
}
}
}
