/*
*
* 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.airavata.security.userstore;
import org.apache.airavata.security.UserStoreException;
import org.apache.airavata.common.utils.DBUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.NodeList;
import sun.reflect.generics.reflectiveObjects.NotImplementedException;
import java.sql.SQLException;
/**
* User store which works on sessions. Will talk to database to check whether session ids are stored in the database.
*/
public class SessionDBUserStore extends AbstractJDBCUserStore {
private String sessionTable;
private String sessionColumn;
private String comparingColumn;
protected DBUtil dbUtil;
protected static Logger log = LoggerFactory.getLogger(SessionDBUserStore.class);
@Override
public boolean authenticate(String userName, Object credentials) throws UserStoreException {
// This user store only supports session tokens.
throw new NotImplementedException();
}
@Override
public boolean authenticate(Object credentials) throws UserStoreException {
String sessionTicket = (String) credentials;
try {
String sessionString = dbUtil.getMatchingColumnValue(sessionTable, sessionColumn, sessionTicket);
return (sessionString != null);
} catch (SQLException e) {
throw new UserStoreException("Error querying database for session information.", e);
}
}
@Override
public void configure(Node node) throws UserStoreException {
super.configure(node);
/**
* <specificConfigurations> <sessionTable> </sessionTable> <sessionColumn></sessionColumn>
* <comparingColumn></comparingColumn> </specificConfigurations>
*/
NodeList databaseNodeList = node.getChildNodes();
Node databaseNode = null;
for (int k = 0; k < databaseNodeList.getLength(); ++k) {
Node n = databaseNodeList.item(k);
if (n != null && n.getNodeType() == Node.ELEMENT_NODE) {
databaseNode = n;
}
}
if (databaseNode != null) {
NodeList nodeList = databaseNode.getChildNodes();
for (int i = 0; i < nodeList.getLength(); ++i) {
Node n = nodeList.item(i);
if (n.getNodeType() == Node.ELEMENT_NODE) {
Element element = (Element) n;
if (element.getNodeName().equals("sessionTable")) {
sessionTable = element.getFirstChild().getNodeValue();
} else if (element.getNodeName().equals("sessionColumn")) {
sessionColumn = element.getFirstChild().getNodeValue();
} else if (element.getNodeName().equals("comparingColumn")) {
comparingColumn = element.getFirstChild().getNodeValue();
}
}
}
}
initializeDatabaseLookup();
StringBuilder stringBuilder = new StringBuilder(
"Configuring DB parameters for authenticator with Session Table - ");
stringBuilder.append(sessionTable).append(" Session column - ").append(sessionColumn)
.append(" Comparing column - ").append(comparingColumn);
log.debug(stringBuilder.toString());
}
private void initializeDatabaseLookup() throws RuntimeException {
this.dbUtil = new DBUtil(getDatabaseURL(), getDatabaseUserName(), getDatabasePassword(), getDatabaseDriver());
try {
this.dbUtil.init();
} catch (ClassNotFoundException e) {
throw new RuntimeException("Error loading database driver. Driver class not found.", e);
} catch (InstantiationException e) {
throw new RuntimeException("Error loading database driver. Error instantiating driver object.", e);
} catch (IllegalAccessException e) {
throw new RuntimeException("Error loading database driver. Illegal access to driver object.", e);
}
}
}