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package org.openslx.imagemaster.session;
import java.sql.SQLException;
import java.util.Iterator;
import java.util.LinkedHashMap;
import java.util.List;
import java.util.Map;
import java.util.UUID;
import java.util.concurrent.TimeUnit;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.openslx.bwlp.thrift.iface.ClientSessionData;
import org.openslx.bwlp.thrift.iface.Satellite;
import org.openslx.bwlp.thrift.iface.UserInfo;
import org.openslx.imagemaster.db.mappers.DbSatellite;
import org.openslx.imagemaster.util.Hash;
import org.openslx.util.QuickTimer;
import org.openslx.util.QuickTimer.Task;
/**
* Class for managing active user sessions. This class and all its function are
* (supposed to be) thread-safe.
*/
public class SessionManager
{
private static Logger log = LogManager.getLogger( SessionManager.class );
// Map of currently known sessions
private static final Map<String, Session> sessions = new LinkedHashMap<>();
public static ClientSessionData addSession( Session session )
{
final String authToken = Hash.md5( UUID.randomUUID().toString() );
final String sessionId = Hash.sha256( UUID.randomUUID().toString() );
synchronized ( sessions ) {
sessions.put( authToken, session );
sessions.put( sessionId, session );
}
UserInfo ui = session.getUserInfo();
List<Satellite> sats;
try {
sats = DbSatellite.getSatellites( ui );
} catch ( SQLException e ) {
sats = null;
}
return new ClientSessionData( sessionId, authToken, sats, ui );
}
static {
QuickTimer.scheduleAtFixedDelay( new Task() {
@Override
public void fire()
{
synchronized ( sessions ) {
Iterator<Session> it = sessions.values().iterator();
while ( it.hasNext() ) {
final Session s = it.next();
if ( s.timedOut() ) {
it.remove();
}
}
}
}
}, 123, TimeUnit.MINUTES.toMillis( 13 ) );
}
public static Session getSessionFromToken( String token )
{
if ( token == null || token.length() != 32 ) {
log.debug( "invalid token format: " + token );
return null;
}
final Session session;
synchronized ( sessions ) {
session = sessions.get( token );
}
if ( session == null || session.timedOut() ) {
return null;
}
return session;
}
public static Session getSessionFromSessionId( String sessionId )
{
if ( sessionId == null || sessionId.length() != 64 ) {
log.debug( "invalid sessionid format: " + sessionId );
return null;
}
final Session session;
synchronized ( sessions ) {
session = sessions.get( sessionId );
}
if ( session == null || session.timedOut() ) {
return null;
}
session.refresh();
return session;
}
public static Session getSessionFromSessionIdOrToken( String sessionId )
{
final Session session;
synchronized ( sessions ) {
session = sessions.get( sessionId );
}
if ( session == null || session.timedOut() ) {
return null;
}
return session;
}
public static void invalidate( String sessionId )
{
if ( sessionId == null || sessionId.length() != 64 ) {
log.debug( "invalidate: invalid sessionid format: " + sessionId );
return;
}
synchronized ( sessions ) {
Session session = sessions.get( sessionId );
if ( session != null ) {
session.invalidate();
}
}
}
}
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