mage/Mage.Server/src/main/java/mage/server/UserManagerImpl.java

374 lines
13 KiB
Java

package mage.server;
import mage.server.managers.ManagerFactory;
import mage.server.managers.UserManager;
import mage.server.record.UserStats;
import mage.server.record.UserStatsRepository;
import mage.server.util.ServerMessagesUtil;
import mage.util.ThreadUtils;
import mage.util.XMageThreadFactory;
import mage.view.UserView;
import org.apache.log4j.Logger;
import java.util.*;
import java.util.concurrent.*;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReadWriteLock;
import java.util.concurrent.locks.ReentrantReadWriteLock;
/**
* Server: manage active user instances (connected to the server)
*
* @author BetaSteward_at_googlemail.com, JayDi85
*/
public class UserManagerImpl implements UserManager {
// timeouts on user's activity (on connection problems)
private static final int USER_CONNECTION_TIMEOUTS_CHECK_SECS = 30;
private static final int USER_CONNECTION_TIMEOUT_INFORM_AFTER_SECS = 30; // inform user's opponents about problem
private static final int USER_CONNECTION_TIMEOUT_SESSION_EXPIRE_AFTER_SECS = 3 * 60; // session expire - remove from all tables and chats (can't reconnect after it)
private static final int USER_CONNECTION_TIMEOUT_REMOVE_FROM_SERVER_SECS = 8 * 60; // removes from users list
private static final int SERVER_USERS_LIST_UPDATE_SECS = 10; // server side updates (client use own timeouts to request users list)
private static final Logger logger = Logger.getLogger(UserManagerImpl.class);
protected final ScheduledExecutorService CONNECTION_EXPIRED_EXECUTOR = Executors.newSingleThreadScheduledExecutor(
new XMageThreadFactory(ThreadUtils.THREAD_PREFIX_SERVICE_CONNECTION_EXPIRED_CHECK)
);
protected final ScheduledExecutorService USERS_LIST_REFRESH_EXECUTOR = Executors.newSingleThreadScheduledExecutor(
new XMageThreadFactory(ThreadUtils.THREAD_PREFIX_SERVICE_USERS_LIST_REFRESH)
);
private List<UserView> userInfoList = new ArrayList<>(); // all users list for main room/chat
private int maxUsersOnline = 0;
private final ManagerFactory managerFactory;
private final ReadWriteLock lock = new ReentrantReadWriteLock();
private final ConcurrentHashMap<UUID, User> users = new ConcurrentHashMap<>();
private ExecutorService USER_EXECUTOR;
public UserManagerImpl(ManagerFactory managerFactory) {
this.managerFactory = managerFactory;
}
public void init() {
USER_EXECUTOR = managerFactory.threadExecutor().getCallExecutor();
CONNECTION_EXPIRED_EXECUTOR.scheduleAtFixedRate(this::checkExpired, USER_CONNECTION_TIMEOUTS_CHECK_SECS, USER_CONNECTION_TIMEOUTS_CHECK_SECS, TimeUnit.SECONDS);
USERS_LIST_REFRESH_EXECUTOR.scheduleAtFixedRate(this::updateUserInfoList, SERVER_USERS_LIST_UPDATE_SECS, SERVER_USERS_LIST_UPDATE_SECS, TimeUnit.SECONDS);
}
@Override
public Optional<User> createUser(String userName, String host, AuthorizedUser authorizedUser) {
if (getUserByName(userName).isPresent()) {
return Optional.empty(); //user already exists
}
User user = new User(managerFactory, userName, host, authorizedUser);
final Lock w = lock.writeLock();
w.lock();
try {
users.put(user.getId(), user);
} finally {
w.unlock();
}
return Optional.of(user);
}
@Override
public Optional<User> getUser(UUID userId) {
if (userId == null) {
return Optional.empty();
}
final Lock r = lock.readLock();
r.lock();
try {
return Optional.ofNullable(users.getOrDefault(userId, null));
} finally {
r.unlock();
}
}
@Override
public Optional<User> getUserByName(String userName) {
final Lock r = lock.readLock();
r.lock();
try {
return users.values()
.stream()
.filter(user -> user.getName().equals(userName))
.findFirst();
} finally {
r.unlock();
}
}
@Override
public Collection<User> getUsers() {
List<User> userList = new ArrayList<>();
final Lock r = lock.readLock();
r.lock();
try {
userList.addAll(users.values());
} finally {
r.unlock();
}
return userList;
}
@Override
public boolean connectToSession(String sessionId, UUID userId) {
if (userId != null) {
Optional<User> user = getUser(userId);
if (user.isPresent()) {
user.get().setSessionId(sessionId);
return true;
}
}
return false;
}
@Override
public void disconnect(UUID userId, DisconnectReason reason) {
User user = getUser(userId).orElse(null);
if (user != null) {
user.onLostConnection(reason);
}
}
@Override
public boolean isAdmin(UUID userId) {
return getUser(userId)
.filter(u -> u.getName().equals(User.ADMIN_NAME))
.isPresent();
}
@Override
public void informUserOpponents(final UUID userId, final String message) {
if (userId != null) {
getUser(userId).ifPresent(user
-> USER_EXECUTOR.execute(
() -> {
try {
managerFactory.chatManager().sendMessageToUserChats(user.getId(), message);
} catch (Exception ex) {
handleException(ex);
}
}
));
}
}
@Override
public boolean extendUserSession(UUID userId, String pingInfo) {
if (userId != null) {
User user = users.get(userId);
if (user != null) {
user.updateLastActivity(pingInfo);
return true;
}
}
return false;
}
/**
* Is the connection lost for more than 3 minutes, the user will be set to
* offline status. The user will be removed in validity check after 8
* minutes of no activities
*/
private void checkExpired() {
try {
Calendar calInform = Calendar.getInstance();
calInform.add(Calendar.SECOND, -1 * USER_CONNECTION_TIMEOUT_INFORM_AFTER_SECS);
Calendar calSessionExpire = Calendar.getInstance();
calSessionExpire.add(Calendar.SECOND, -1 * USER_CONNECTION_TIMEOUT_SESSION_EXPIRE_AFTER_SECS);
Calendar calUserRemove = Calendar.getInstance();
calUserRemove.add(Calendar.SECOND, -1 * USER_CONNECTION_TIMEOUT_REMOVE_FROM_SERVER_SECS);
List<User> usersToRemove = new ArrayList<>();
logger.debug("Start Check Expired");
List<User> userList = new ArrayList<>();
final Lock r = lock.readLock();
r.lock();
try {
userList.addAll(users.values());
} finally {
r.unlock();
}
for (User user : userList) {
try {
// expire logic:
// - any user actions will update user's last activity date
// - expire code schedules to check last activity every few seconds (minutes)
// - if something outdated then it will be removed from a server
// - user lifecycle: created -> connected/disconnected (bad connection, bad session) -> offline
boolean isBadConnection = user.isExpired(calInform.getTime());
boolean isBadSession = user.isExpired(calSessionExpire.getTime());
boolean isBadUser = user.isExpired(calUserRemove.getTime());
switch (user.getUserState()) {
case Created: {
// ignore
break;
}
case Offline: {
// remove user from a server (users list for GUI)
if (isBadUser) {
usersToRemove.add(user);
}
break;
}
case Connected:
case Disconnected: {
if (isBadConnection) {
long secsInfo = (Calendar.getInstance().getTimeInMillis() - user.getLastActivity().getTime()) / 1000;
informUserOpponents(user.getId(), String.format("%s catch connection problems for %s secs (left before expire: %d secs)",
user.getName(),
secsInfo,
Math.max(0, USER_CONNECTION_TIMEOUT_SESSION_EXPIRE_AFTER_SECS - secsInfo)
));
}
if (isBadSession) {
// full disconnect
disconnect(user.getId(), DisconnectReason.SessionExpired);
}
break;
}
default: {
throw new IllegalArgumentException("Unknown user state: " + user.getUserState());
}
}
} catch (Exception ex) {
handleException(ex);
}
}
logger.debug("Users to remove " + usersToRemove.size());
final Lock w = lock.writeLock();
w.lock();
try {
for (User user : usersToRemove) {
users.remove(user.getId());
}
} finally {
w.unlock();
}
logger.debug("End Check Expired");
} catch (Exception ex) {
handleException(ex);
}
}
/**
* Remove user instance from a server
* Warning, call it after all tables/chats and other user related data removes
*
* @param userId
*/
@Override
public void removeUser(UUID userId) {
try {
final Lock w = lock.writeLock();
w.lock();
try {
users.remove(userId);
} finally {
w.unlock();
}
} catch (Exception e) {
handleException(e);
}
}
/**
* This method recreated the user list that will be sent to all clients
*/
private void updateUserInfoList() {
try {
List<UserView> newUserInfoList = new ArrayList<>();
int currentOnlineCount = 0;
for (User user : getUsers()) {
newUserInfoList.add(new UserView(
user.getName(),
user.getHost(),
user.getSessionId(),
user.getConnectionTime(),
user.getLastActivity(),
user.getGameInfo(),
user.getUserState().toString(),
user.getChatLockedUntil(),
user.getClientVersion(),
user.getEmail(),
user.getUserIdStr()
));
if (user.isOnlineUser()) {
currentOnlineCount++;
}
}
userInfoList = newUserInfoList;
// max users online stats
if (currentOnlineCount > maxUsersOnline) {
maxUsersOnline = currentOnlineCount;
// TODO: if server get too much logs after restart (on massive reconnect) then add logs timeout here
logger.info(String.format("New max users online: %d", maxUsersOnline));
ServerMessagesUtil.instance.setMaxUsersOnline(maxUsersOnline); // update online stats for news panel
}
} catch (Exception ex) {
handleException(ex);
}
}
@Override
public List<UserView> getUserInfoList() {
return userInfoList;
}
@Override
public void handleException(Exception ex) {
if (ex != null) {
logger.fatal("User manager exception ", ex);
if (ex.getStackTrace() != null) {
logger.fatal(ex.getStackTrace());
}
} else {
logger.fatal("User manager exception - null");
}
}
@Override
public String getUserHistory(String userName) {
Optional<User> user = getUserByName(userName);
if (user.isPresent()) {
return "History of user " + userName + " - " + user.get().getUserData().getHistory();
}
UserStats userStats = UserStatsRepository.instance.getUser(userName);
if (userStats != null) {
return "History of user " + userName + " - " + User.userStatsToHistory(userStats.getProto());
}
return "User " + userName + " not found";
}
@Override
public void updateUserHistory() {
USER_EXECUTOR.execute(() -> {
for (String updatedUser : UserStatsRepository.instance.updateUserStats()) {
getUserByName(updatedUser).ifPresent(User::resetUserStats);
}
});
}
@Override
public void checkHealth() {
//logger.info("Checking users...");
// TODO: add broken users check and report (too long without sessions)
}
}