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Set the maximum number of player on the server through the config.json (#1001)

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* Show server status to three-party game launcher

* Set the maximum number of player on the server through the config.json

* modify the logical order and show the number of maxplayer to API /status/server

* Now even players who have token already cannot bypass the maxPlayer check
This commit is contained in:
ButterCookies
2022-05-20 20:47:47 +08:00
committed by GitHub
parent 2a467a48dc
commit 9125bacfce
8 changed files with 128 additions and 77 deletions
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173
src/main/java/emu/grasscutter/auth/DefaultAuthenticators.java
View File

@@ -23,32 +23,42 @@ public final class DefaultAuthenticators {
var requestData = request.getPasswordRequest();
assert requestData != null; // This should never be null.
int playerCount = Grasscutter.getGameServer().getPlayers().size();
boolean successfulLogin = false;
String address = request.getRequest().ip();
String responseMessage = translate("messages.dispatch.account.username_error");
String loggerMessage = "";
// Get account from database.
Account account = DatabaseHelper.getAccountByName(requestData.account);
// Check if account exists.
if(account == null && ACCOUNT.autoCreate) {
// This account has been created AUTOMATICALLY. There will be no permissions added.
account = DatabaseHelper.createAccountWithId(requestData.account, 0);
// Check if the account was created successfully.
if(account == null) {
responseMessage = translate("messages.dispatch.account.username_create_error");
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_error", address));
} else {
// Continue with login.
successfulLogin = true;
if (ACCOUNT.maxPlayer <= -1 || playerCount < ACCOUNT.maxPlayer) {
// Check if account exists.
if(account == null && ACCOUNT.autoCreate) {
// This account has been created AUTOMATICALLY. There will be no permissions added.
account = DatabaseHelper.createAccountWithId(requestData.account, 0);
// Check if the account was created successfully.
if(account == null) {
responseMessage = translate("messages.dispatch.account.username_create_error");
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_error", address));
} else {
// Continue with login.
successfulLogin = true;
// Log the creation.
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_success", address, response.data.account.uid));
}
} else if(account != null)
successfulLogin = true;
else
loggerMessage = translate("messages.dispatch.account.account_login_exist_error", address);
} else {
responseMessage = translate("messages.dispatch.account.server_max_player_limit");
loggerMessage = translate("messages.dispatch.account.login_max_player_limit", address);
}
// Log the creation.
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_success", address, response.data.account.uid));
}
} else if(account != null)
successfulLogin = true;
// Set response data.
if(successfulLogin) {
@@ -56,17 +66,15 @@ public final class DefaultAuthenticators {
response.data.account.uid = account.getId();
response.data.account.token = account.generateSessionKey();
response.data.account.email = account.getEmail();
// Log the login.
Grasscutter.getLogger().info(translate("messages.dispatch.account.login_success", address, account.getId()));
loggerMessage = translate("messages.dispatch.account.login_success", address, account.getId());
} else {
response.retcode = -201;
response.message = responseMessage;
// Log the failure.
Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_exist_error", address));
}
Grasscutter.getLogger().info(loggerMessage);
return response;
}
}
@@ -80,36 +88,48 @@ public final class DefaultAuthenticators {
var requestData = request.getTokenRequest();
assert requestData != null;
boolean successfulLogin;
String address = request.getRequest().ip();
String loggerMessage;
int playerCount = Grasscutter.getGameServer().getPlayers().size();
// Log the attempt.
Grasscutter.getLogger().info(translate("messages.dispatch.account.login_token_attempt", address));
// Get account from database.
Account account = DatabaseHelper.getAccountById(requestData.uid);
// Check if account exists/token is valid.
successfulLogin = account != null && account.getSessionKey().equals(requestData.token);
// Set response data.
if(successfulLogin) {
response.message = "OK";
response.data.account.uid = account.getId();
response.data.account.token = account.getSessionKey();
response.data.account.email = account.getEmail();
// Log the login.
Grasscutter.getLogger().info(translate("messages.dispatch.account.login_token_success", address, requestData.uid));
if (ACCOUNT.maxPlayer <= -1 || playerCount < ACCOUNT.maxPlayer) {
// Get account from database.
Account account = DatabaseHelper.getAccountById(requestData.uid);
// Check if account exists/token is valid.
successfulLogin = account != null && account.getSessionKey().equals(requestData.token);
// Set response data.
if(successfulLogin) {
response.message = "OK";
response.data.account.uid = account.getId();
response.data.account.token = account.getSessionKey();
response.data.account.email = account.getEmail();
// Log the login.
loggerMessage = translate("messages.dispatch.account.login_token_success", address, requestData.uid);
} else {
response.retcode = -201;
response.message = translate("messages.dispatch.account.account_cache_error");
// Log the failure.
loggerMessage = translate("messages.dispatch.account.login_token_error", address);
}
} else {
response.retcode = -201;
response.message = translate("messages.dispatch.account.account_cache_error");
// Log the failure.
Grasscutter.getLogger().info(translate("messages.dispatch.account.login_token_error", address));
response.message = translate("messages.dispatch.account.server_max_player_limit");
loggerMessage = translate("messages.dispatch.account.login_max_player_limit", address);
}
Grasscutter.getLogger().info(loggerMessage);
return response;
}
}
@@ -127,30 +147,41 @@ public final class DefaultAuthenticators {
boolean successfulLogin;
String address = request.getRequest().ip();
// Get account from database.
Account account = DatabaseHelper.getAccountById(loginData.uid);
// Check if account exists/token is valid.
successfulLogin = account != null && account.getSessionKey().equals(loginData.token);
// Set response data.
if(successfulLogin) {
response.message = "OK";
response.data.open_id = account.getId();
response.data.combo_id = "157795300";
response.data.combo_token = account.generateLoginToken();
// Log the login.
Grasscutter.getLogger().info(translate("messages.dispatch.account.combo_token_success", address));
String loggerMessage;
int playerCount = Grasscutter.getGameServer().getPlayers().size();
if (ACCOUNT.maxPlayer <= -1 || playerCount < ACCOUNT.maxPlayer) {
// Get account from database.
Account account = DatabaseHelper.getAccountById(loginData.uid);
// Check if account exists/token is valid.
successfulLogin = account != null && account.getSessionKey().equals(loginData.token);
// Set response data.
if(successfulLogin) {
response.message = "OK";
response.data.open_id = account.getId();
response.data.combo_id = "157795300";
response.data.combo_token = account.generateLoginToken();
// Log the login.
loggerMessage = translate("messages.dispatch.account.combo_token_success", address);
} else {
response.retcode = -201;
response.message = translate("messages.dispatch.account.session_key_error");
// Log the failure.
loggerMessage = translate("messages.dispatch.account.combo_token_error", address);
}
} else {
response.retcode = -201;
response.message = translate("messages.dispatch.account.session_key_error");
// Log the failure.
Grasscutter.getLogger().info(translate("messages.dispatch.account.combo_token_error", address));
response.message = translate("messages.dispatch.account.server_max_player_limit");
loggerMessage = translate("messages.dispatch.account.login_max_player_limit", address);
}
Grasscutter.getLogger().info(loggerMessage);
return response;
}
}

5
src/main/java/emu/grasscutter/server/http/handlers/GenericHandler.java
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@@ -9,6 +9,8 @@ import express.http.Request;
import express.http.Response;
import io.javalin.Javalin;
import static emu.grasscutter.Configuration.ACCOUNT;
/**
* Handles all generic, hard-coded responses.
*/
@@ -48,8 +50,9 @@ public final class GenericHandler implements Router {
private static void serverStatus(Request request, Response response) {
int playerCount = Grasscutter.getGameServer().getPlayers().size();
int maxPlayer = ACCOUNT.maxPlayer;
String version = GameConstants.VERSION;
response.send("{\"retcode\":0,\"status\":{\"playerCount\":" + playerCount + ",\"version\":\"" + version + "\"}}");
response.send("{\"retcode\":0,\"status\":{\"playerCount\":" + playerCount + ",\"maxPlayer\":" + maxPlayer + ",\"version\":\"" + version + "\"}}");
}
}

10
src/main/java/emu/grasscutter/server/packet/recv/HandlerPlayerLoginReq.java
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@@ -1,5 +1,6 @@
package emu.grasscutter.server.packet.recv;
import emu.grasscutter.Grasscutter;
import emu.grasscutter.database.DatabaseHelper;
import emu.grasscutter.game.player.Player;
import emu.grasscutter.net.packet.BasePacket;
@@ -12,6 +13,8 @@ import emu.grasscutter.server.game.GameSession.SessionState;
import emu.grasscutter.server.packet.send.PacketPlayerLoginRsp;
import emu.grasscutter.server.packet.send.PacketTakeAchievementRewardReq;
import static emu.grasscutter.Configuration.ACCOUNT;
@Opcodes(PacketOpcodes.PlayerLoginReq) // Sends initial data packets
public class HandlerPlayerLoginReq extends PacketHandler {
@@ -21,7 +24,12 @@ public class HandlerPlayerLoginReq extends PacketHandler {
if (session.getAccount() == null) {
return;
}
// Max players limit
if (ACCOUNT.maxPlayer > -1 && Grasscutter.getGameServer().getPlayers().size() >= ACCOUNT.maxPlayer) {
return;
}
// Parse request
PlayerLoginReq req = PlayerLoginReq.parseFrom(payload);

1
src/main/java/emu/grasscutter/utils/ConfigContainer.java
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@@ -110,6 +110,7 @@ public class ConfigContainer {
public static class Account {
public boolean autoCreate = false;
public String[] defaultPermissions = {};
public int maxPlayer = -1;
}
/* Server options. */