zdm/envoy
zdm/envoy
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Implemented method to check for the validity of logins

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Warning: will only work once f/advanced_login of envoy-common will be merged into develop
This commit is contained in:
delvh 2020-02-07 23:37:33 +01:00
parent e73ad7b871
commit 65b016b9b7
1 changed files with 53 additions and 15 deletions
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68
src/main/java/envoy/server/processors/LoginCredentialProcessor.java
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@ -3,14 +3,18 @@ package envoy.server.processors;
import java.io.IOException;
import java.util.Arrays;
import java.util.Date;
import java.util.InputMismatchException;
import java.util.List;
import java.util.stream.Collectors;
import javax.persistence.NoResultException;
import envoy.data.Contacts;
import envoy.data.LoginCredentials;
import envoy.data.Message.MessageStatus;
import envoy.data.User;
import envoy.data.User.UserStatus;
import envoy.event.HandshakeRejectionEvent;
import envoy.server.ConnectionManager;
import envoy.server.ObjectProcessor;
import envoy.server.data.Message;
@ -40,7 +44,7 @@ public class LoginCredentialProcessor implements ObjectProcessor<LoginCredential
UserStatusChangeProcessor.setWriteProxy(writeProxy);
System.out.println(String.format("Received login credentials %s from socket ID %d", input, socketId));
envoy.server.data.User user = getUser(input);
envoy.server.data.User user = getUser(input, writeProxy);
// Not logged in successfully
if (user == null) return;
@ -72,23 +76,57 @@ public class LoginCredentialProcessor implements ObjectProcessor<LoginCredential
}
}
private envoy.server.data.User getUser(LoginCredentials credentials) {
envoy.server.data.User user;
private envoy.server.data.User getUser(LoginCredentials credentials, ObjectWriteProxy writeProxy) throws IOException {
return credentials.isRegistration() ? newUser(credentials) : checkForExistingUser(credentials, writeProxy);
}
if (credentials.isRegistration()) {
user = new envoy.server.data.User();
user.setName(credentials.getName());
user.setLastSeen(new Date());
user.setStatus(User.UserStatus.ONLINE);
user.setPasswordHash(credentials.getPasswordHash());
user.setContacts(PersistenceManager.getPersistenceManager().getContacts(user));
persistenceManager.addUser(user);
} else {
user = persistenceManager.getUserByName(credentials.getName());
// TODO: Implement error when user does not exist
if (!Arrays.equals(credentials.getPasswordHash(), user.getPasswordHash())) // TODO: Wrong Password Response
/**
* @param credentials the input to evaluate
* @param writeProxy the {@link ObjectWriteProxy} to use if login was not
* successful
* @throws IOException if sending the failed login back to the client failed
* @since Envoy Server Standalone v0.1-alpha
*/
private envoy.server.data.User checkForExistingUser(LoginCredentials credentials, ObjectWriteProxy writeProxy) throws IOException {
envoy.server.data.User user;
ConnectionManager connectionManager = ConnectionManager.getInstance();
long userId = credentials.getId();
long socketId = connectionManager.getSocketId(userId);
try {
// Checking if user is already online
if (connectionManager.isOnline(userId)) {
writeProxy.write(socketId, new HandshakeRejectionEvent(HandshakeRejectionEvent.ALREADY_ONLINE));
return null;
}
user = persistenceManager.getUserById(userId);
// Evaluating the correctness of the password hash
if (!Arrays.equals(credentials.getPasswordHash(), user.getPasswordHash()))
throw new InputMismatchException("User " + credentials.getName() + "tried logging in using a wrong password");
return user;
} catch (NoResultException e) {
// Checking if user exists
writeProxy.write(socketId, new HandshakeRejectionEvent(HandshakeRejectionEvent.USER_DOES_NOT_EXIST));
} catch (InputMismatchException e) {
// Checking if the given password hash is correct
writeProxy.write(socketId, new HandshakeRejectionEvent(HandshakeRejectionEvent.INCORRECT_PASSWORD));
}
return null;
}
/**
* @param credentials the credentials upon which to create the new {@link User}
* @return the newly created {@link User}
* @since Envoy Server Standalone v0.1-alpha
*/
private envoy.server.data.User newUser(LoginCredentials credentials) {
envoy.server.data.User user;
user = new envoy.server.data.User();
user.setName(credentials.getName());
user.setLastSeen(new Date());
user.setStatus(User.UserStatus.ONLINE);
user.setPasswordHash(credentials.getPasswordHash());
user.setContacts(PersistenceManager.getPersistenceManager().getContacts(user));
persistenceManager.addUser(user);
return user;
}
}