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package org.openslx.imagemaster.server;
import org.apache.log4j.Logger;
import org.openslx.imagemaster.session.Authenticator;
import org.openslx.imagemaster.session.Session;
import org.openslx.imagemaster.session.SessionManager;
import org.openslx.imagemaster.session.User;
import org.openslx.imagemaster.thrift.iface.AuthenticationError;
import org.openslx.imagemaster.thrift.iface.AuthenticationException;
import org.openslx.imagemaster.thrift.iface.InvalidTokenException;
import org.openslx.imagemaster.thrift.iface.SessionData;
import org.openslx.imagemaster.thrift.iface.UserInfo;
/**
* API Server This is where all the requests from the outside arrive. We don't
* handle them directly in the Thrift handlers, as we might be adding other APIs
* later, like JSON/SOAP/REST/HTTP/XML or some other stuff. They'd all just
* interface with this static class here. Note that we use the exceptions from
* the thrift interface that you can simply catch in any other API handler and
* eg. transform into error codes, if the API doesn't support exceptions.
*
* This will be accessed from multiple threads, so use synchronization when
* needed (or in doubt)
*/
public class ApiServer
{
@SuppressWarnings( "unused" )
private static Logger log = Logger.getLogger( ApiServer.class );
/**
* Request for authentication
* @param login (username@organization)
* @param password
* @return SessionData struct with session id/token iff login successful
* @throws AuthenticationException if login not successful
*/
public static SessionData authenticate( String login, String password )
throws AuthenticationException {
if ( login == null || password == null ) {
throw new AuthenticationException( AuthenticationError.INVALID_CREDENTIALS, "Empty username or password!" );
}
final User user = Authenticator.authenticate( login, password );
final Session session = new Session( user );
return SessionManager.addSession( session );
}
/**
* Request information about user for given token
* @param token - a user's token
* @return UserInfo struct for given token's user
* @throws InvalidTokenException if no user matches the given token
*/
public static UserInfo getUserFromToken( String token )
throws InvalidTokenException
{
final Session session = SessionManager.getSession( token );
if ( session == null )
throw new InvalidTokenException();
return new UserInfo( session.getUserId(), session.getFirstName(), session.getLastName(), session.getEMail() );
}
}
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