/**
* Creates a character for a account of a player
*
* @param username player's username
* @param character
* @param template the template we are going to use to create the object.
* @param address ip address of client
* @return a Result indicating if account creation was done successfully or if it is not the
* cause.
*/
public CharacterResult createCharacter(
String username, String character, RPObject template, String address) {
try {
if (!Boolean.parseBoolean(
Configuration.getConfiguration().get("allow_account_creation", "true"))) {
return new CharacterResult(Result.FAILED_CREATE_ON_MAIN_INSTEAD, character, template);
}
} catch (IOException e) {
logger.error(e, e);
}
// check account creation limits
try {
if (DAORegister.get()
.get(CharacterDAO.class)
.isCharacterCreationLimitReached(username, address)) {
return new CharacterResult(Result.FAILED_TOO_MANY, character, template);
}
} catch (SQLException e) {
logger.error(e, e);
return new CharacterResult(Result.FAILED_EXCEPTION, character, template);
} catch (IOException e) {
logger.error(e, e);
return new CharacterResult(Result.FAILED_EXCEPTION, character, template);
}
return ruleProcessor.createCharacter(username, character, template);
}
/**
* reads a file into a map
*
* @param is InputStream
* @param resultMap content is store in this map
*/
private static void readFile(InputStream is, Map<String, String> resultMap) {
BufferedReader reader = null;
try {
reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
String line = reader.readLine();
while (line != null) {
int pos = line.indexOf("=");
if (pos > -1) {
String key = line.substring(0, pos);
String value = line.substring(pos + 1);
resultMap.put(key, value);
}
line = reader.readLine();
}
} catch (IOException e) {
logger.error(e, e);
}
if (reader != null) {
try {
reader.close();
} catch (IOException e) {
logger.error(e, e);
}
}
}
private void buildPerceptions() {
playersToRemove.clear();
/** We reset the cache at Perceptions */
MessageS2CPerception.clearPrecomputedPerception();
for (PlayerEntry entry : playerContainer) {
try {
// Before creating the perception we check the player is still there.
if (entry.isTimeout()) {
logger.info("Request (TIMEOUT) disconnection of Player " + entry.getAddress());
playersToRemove.add(entry);
continue;
}
if (entry.state == ClientState.GAME_BEGIN) {
Perception perception = getPlayerPerception(entry);
sendPlayerPerception(entry, perception, entry.object);
}
} catch (Exception e) {
logger.error(
"Removing player("
+ entry.clientid
+ ") because it caused a Exception while contacting it",
e);
playersToRemove.add(entry);
}
}
for (PlayerEntry entry : playersToRemove) {
logger.warn("RP Disconnecting entry: " + entry);
netMan.disconnectClient(entry.channel);
}
}
/**
* Adds an action for the next turn
*
* @param object the object that casted the action
* @param action the action itself
* @throws ActionInvalidException
*/
public void addRPAction(RPObject object, RPAction action) throws ActionInvalidException {
if (logger.isDebugEnabled()) {
logger.debug("Added action: " + action);
}
scheduler.addRPAction(object, action, ruleProcessor);
}
/**
* Creates an account for a player in the game.
*
* @param username player's username
* @param password player's password
* @param email player's email
* @param address ip address of client
* @return a Result indicating if account creation was done successfully or not.
*/
public AccountResult createAccount(
String username, String password, String email, String address) {
try {
if (!Boolean.parseBoolean(
Configuration.getConfiguration().get("allow_account_creation", "true"))) {
return new AccountResult(Result.FAILED_CREATE_ON_MAIN_INSTEAD, username);
}
} catch (IOException e) {
logger.error(e, e);
}
// check account creation limits
try {
if (DAORegister.get().get(AccountDAO.class).isAccountCreationLimitReached(address)) {
return new AccountResult(Result.FAILED_TOO_MANY, username);
}
} catch (SQLException e) {
logger.error(e, e);
return new AccountResult(Result.FAILED_EXCEPTION, username);
} catch (IOException e) {
logger.error(e, e);
return new AccountResult(Result.FAILED_EXCEPTION, username);
}
// forward the creation request to the game
return ruleProcessor.createAccount(username, password, email);
}
private void sendPlayerPerception(
PlayerEntry entry, Perception perception, RPObject playerObject) {
if (perception == null) {
/** Until player enters game perception is null */
return;
}
MessageS2CPerception messages2cPerception = new MessageS2CPerception(entry.channel, perception);
stats.add("Perceptions " + (perception.type == 0 ? "DELTA" : "SYNC"), 1);
/*
* The perception is build of two parts: the general information and the
* private information about our object. This private information
* consists only of attributes that are not visible to every player but
* the owner, because visible attributes are already stored in the
* perception.
*/
if (perception.type == Perception.SYNC) {
RPObject copy = new RPObject();
copy.fill(playerObject);
if (!playerObject.isHidden()) {
copy.clearVisible(true);
}
messages2cPerception.setMyRPObject(copy, null);
} else {
RPObject added = new RPObject();
RPObject deleted = new RPObject();
try {
playerObject.getDifferences(added, deleted);
if (!playerObject.isHidden()) {
added.clearVisible(false);
deleted.clearVisible(false);
}
if (added.size() == 0) {
added = null;
}
if (deleted.size() == 0) {
deleted = null;
}
} catch (Exception e) {
logger.error("Error getting object differences", e);
logger.error(playerObject);
added = null;
deleted = null;
}
messages2cPerception.setMyRPObject(added, deleted);
}
messages2cPerception.setClientID(entry.clientid);
messages2cPerception.setPerceptionTimestamp(entry.getPerceptionTimestamp());
messages2cPerception.setProtocolVersion(entry.getProtocolVersion());
netMan.sendMessage(messages2cPerception);
}
/**
* gets the decrypted password
*
* @return the decrypted password hash
*/
public byte[] getDecryptedPasswordHash() {
byte[] b1 = key.decodeByteArray(password);
byte[] b2 = Hash.xor(clientNonce, serverNonce);
if (b2 == null) {
logger.debug("B2 is null");
return null;
}
byte[] passwordHash = Hash.xor(b1, b2);
if (password == null) {
logger.debug("Password is null");
return null;
}
return passwordHash;
}
/**
* Constructor
*
* @param netMan the NetworkServerManager so that we can send message
* @throws Exception in case of an unexpected error
*/
public RPServerManager(INetworkServerManager netMan) throws Exception {
super("RPServerManager");
try {
stats = Statistics.getStatistics();
keepRunning = true;
isfinished = false;
scheduler = new RPScheduler();
contentsToTransfer = new HashMap<RPObject, List<TransferContent>>();
playerContainer = PlayerEntryContainer.getContainer();
playersToRemove = new LinkedList<PlayerEntry>();
this.netMan = netMan;
Configuration conf = Configuration.getConfiguration();
/*
* This method loads the extensions that implement the game server
* code.
*/
initializeExtensions(conf);
String duration = conf.get("turn_length");
turnDuration = Long.parseLong(duration);
turn = 0;
} catch (Exception e) {
logger.warn("ABORT: Unable to create RPZone, RPRuleProcessor or RPAIManager instances", e);
throw e;
}
}
/**
* Takes the given RPObject as the new RPObject representing the user's character. Does nothing if
* the provided RPObject isn't the user's character object as determined by
* isCharacter(newCharacter) or the provided RPObject is the same as the current one.
*
* @param newCharacter the new RPObject representing the users character
*/
public void setCharacter(final RPObject newCharacter) {
if (isCharacter(newCharacter) && this.myCharacter != newCharacter) {
myCharacter = newCharacter;
name = newCharacter.get("name");
} else {
log.warn("Character not set because it's not our character.");
}
}
private void deliverTransferContent() {
synchronized (contentsToTransfer) {
for (Map.Entry<RPObject, List<TransferContent>> val : contentsToTransfer.entrySet()) {
RPObject target = val.getKey();
List<TransferContent> content = val.getValue();
PlayerEntry entry = playerContainer.get(target);
if (entry == null) {
logger.warn(
"Entry for player (" + target + ") does not exist: " + playerContainer,
new Throwable());
continue;
}
if (content == null) {
logger.warn("content is null");
}
if (!entry.contentToTransfer.isEmpty()) {
// prevent DoS if the client never confirms the Transfer offer
if (entry.contentToTransfer.size() > 30) {
synchronized (entry.contentToTransfer) {
for (int i = 0; i < 10; i++) {
entry.contentToTransfer.remove(0);
}
}
}
logger.warn(
"Adding to existing contentToTransfer for player "
+ entry.character
+ " old: "
+ entry.contentToTransfer
+ " added "
+ content);
}
entry.contentToTransfer.addAll(content);
MessageS2CTransferREQ mes = new MessageS2CTransferREQ(entry.channel, content);
mes.setClientID(entry.clientid);
mes.setProtocolVersion(entry.getProtocolVersion());
netMan.sendMessage(mes);
}
contentsToTransfer.clear();
}
}
/**
* counts the number of connections from this ip-address
*
* @param playerContainer PlayerEntryContainer
* @return number of active connections
*/
public int countConnectionsFromSameIPAddress(PlayerEntryContainer playerContainer) {
if (address == null) {
return 0;
}
int counter = 0;
for (PlayerEntry playerEntry : playerContainer) {
try {
if ((playerEntry.getAddress() != null)
&& address.getHostAddress().equals(playerEntry.getAddress().getHostAddress())) {
counter++;
}
} catch (NullPointerException e) {
logger.error(address);
logger.error(address.getHostAddress());
logger.error(playerEntry);
logger.error(playerEntry);
logger.error(playerEntry.getAddress());
logger.error(e, e);
}
}
return counter;
}
/**
* This method finishes the thread that runs the RPServerManager. It calls the RPWorld.onFinish()
* method.
*/
public void finish() {
keepRunning = false;
while (!isfinished) {
Thread.yield();
}
try {
world.onFinish();
} catch (Exception e) {
logger.error("error while finishing RPServerManager", e);
}
}
@Override
public void readObject(marauroa.common.net.InputSerializer in) throws IOException {
super.readObject(in);
try {
reason = Result.values()[in.readByte()];
} catch (ArrayIndexOutOfBoundsException e) {
logger.error(e, e);
reason = Result.FAILED_EXCEPTION;
}
if (type != MessageType.S2C_CREATEACCOUNT_NACK) {
throw new IOException();
}
}
/**
* This method disconnects a player from the server.
*
* @param object the player object that we want to disconnect from world
*/
public void disconnectPlayer(RPObject object) {
PlayerEntry entry = playerContainer.get(object);
if (entry == null) {
/*
* There is no player entry for such channel This is not necesaryly
* an error, as the connection could be anything else but an arianne
* client or we are just disconnecting a player that logout
* correctly.
*/
logger.warn("There is no PlayerEntry associated to this RPObject.");
return;
}
netMan.disconnectClient(entry.channel);
}
/**
* This method creates the real connection to database.
*
* @param connInfo connection information like url, username and password
* @return a connection to the database
* @throws DatabaseConnectionException if the connection cannot be established.
*/
protected Connection createConnection(Properties connInfo) throws DatabaseConnectionException {
try {
// instantiate the Driver class
try {
if (connInfo.get("jdbc_class") != null) {
Class.forName((String) connInfo.get("jdbc_class")).newInstance();
}
} catch (Exception e) {
throw new DatabaseConnectionException(
"Cannot load driver class " + connInfo.get("jdbc_class"), e);
}
Properties connectionInfo = new Properties();
if (connInfo.get("jdbc_user") != null) {
connectionInfo.put("user", connInfo.get("jdbc_user"));
}
if (connInfo.get("jdbc_pwd") != null) {
connectionInfo.put("password", connInfo.get("jdbc_pwd"));
}
connectionInfo.put("charSet", "UTF-8");
Connection conn =
DriverManager.getConnection((String) connInfo.get("jdbc_url"), connectionInfo);
// enable transaction support
conn.setAutoCommit(false);
conn.setTransactionIsolation(Connection.TRANSACTION_READ_COMMITTED);
DatabaseMetaData meta = conn.getMetaData();
logger.info(
"Connected to "
+ connInfo.get("jdbc_url")
+ ": "
+ meta.getDatabaseProductName()
+ " "
+ meta.getDatabaseProductVersion()
+ " with driver "
+ meta.getDriverName()
+ " "
+ meta.getDriverVersion());
return conn;
} catch (SQLException e) {
throw new DatabaseConnectionException(
"Unable to create a connection to: " + connInfo.get("jdbc_url"), e);
}
}
private void savePlayersPeriodicly() {
for (PlayerEntry entry : playerContainer) {
try {
// do not use = 0 because we need a little time until the
// player object is fully initialized (e. g. has a charname)
if (entry.getThisPerceptionTimestamp() % 2000 == 1999) {
entry.storeRPObject(entry.object);
}
} catch (Exception e) {
String name = "null";
if (entry != null) {
name = entry.character;
}
logger.error("Error while storing player " + name, e);
}
}
}
/**
* Add a login event to database each time player login, even if it fails.
*
* @param transaction DBTransactions
* @param address the IP address that originated the request.
* @param result 0 failed password, 1 successful login, 2 banned, 3 inactive, 4 blocked, 5 merged
* @throws SQLException if there is any database problem.
*/
public void addLoginEvent(DBTransaction transaction, InetAddress address, int result)
throws SQLException {
String service = null;
try {
Configuration conf = Configuration.getConfiguration();
if (conf.has("server_service")) {
service = conf.get("server_service");
} else {
service = conf.get("server_typeGame");
}
} catch (IOException e) {
logger.error(e, e);
}
DAORegister.get()
.get(LoginEventDAO.class)
.addLoginEvent(transaction, username, address, service, seed, result);
}
@Override
public void run() {
try {
long start = System.nanoTime();
long stop;
long delay;
long timeStart = 0;
long[] timeEnds = new long[12];
while (keepRunning) {
stop = System.nanoTime();
logger.debug("Turn time elapsed: " + ((stop - start) / 1000) + " microsecs");
delay = turnDuration - ((stop - start) / 1000000);
if (delay < 0) {
StringBuilder sb = new StringBuilder();
for (long timeEnd : timeEnds) {
sb.append(" " + (timeEnd - timeStart));
}
logger.warn("Turn duration overflow by " + (-delay) + " ms: " + sb.toString());
} else if (delay > turnDuration) {
logger.error(
"Delay bigger than Turn duration. [delay: "
+ delay
+ "] [turnDuration:"
+ turnDuration
+ "]");
delay = 0;
}
// only sleep when the turn delay is > 0
if (delay > 0) {
try {
Thread.sleep(delay);
} catch (InterruptedException e) {
// ignore
}
}
start = System.nanoTime();
timeStart = System.currentTimeMillis();
playerContainer.getLock().requestWriteLock();
try {
timeEnds[0] = System.currentTimeMillis();
/* Get actions that players send */
scheduler.nextTurn();
timeEnds[1] = System.currentTimeMillis();
/* Execute them all */
scheduler.visit(ruleProcessor);
timeEnds[2] = System.currentTimeMillis();
/* Compute game RP rules to move to the next turn */
ruleProcessor.endTurn();
timeEnds[3] = System.currentTimeMillis();
/* Send content that is waiting to players */
deliverTransferContent();
timeEnds[4] = System.currentTimeMillis();
/* Tell player what happened */
buildPerceptions();
timeEnds[5] = System.currentTimeMillis();
/* save players regularly to the db */
savePlayersPeriodicly();
timeEnds[6] = System.currentTimeMillis();
/* Move zone to the next turn */
world.nextTurn();
timeEnds[7] = System.currentTimeMillis();
turn++;
ruleProcessor.beginTurn();
timeEnds[8] = System.currentTimeMillis();
} finally {
playerContainer.getLock().releaseLock();
timeEnds[9] = System.currentTimeMillis();
}
try {
stats.set("Objects now", world.size());
} catch (ConcurrentModificationException e) {
// TODO: size is obviously not threadsafe as it asks the underlying zone.objects for its
// sizes, which are not threadsafe.
}
timeEnds[10] = System.currentTimeMillis();
TransactionPool.get().kickHangingTransactionsOfThisThread();
timeEnds[11] = System.currentTimeMillis();
}
} catch (Throwable e) {
logger.error("Unhandled exception, server will shut down.", e);
} finally {
isfinished = true;
}
}
