Refactor dispatch (now called HTTP) server (pt. 2)

src/main/java/emu/grasscutter/Grasscutter.java

@@ -11,9 +11,7 @@ import emu.grasscutter.plugin.api.ServerHook;
 import emu.grasscutter.scripts.ScriptLoader;
 import emu.grasscutter.server.http.HttpServer;
 import emu.grasscutter.server.http.dispatch.DispatchHandler;
-import emu.grasscutter.server.http.handlers.AnnouncementsHandler;
-import emu.grasscutter.server.http.handlers.GenericHandler;
-import emu.grasscutter.server.http.handlers.LogHandler;
+import emu.grasscutter.server.http.handlers.*;
 import emu.grasscutter.server.http.dispatch.RegionHandler;
 import emu.grasscutter.utils.ConfigContainer;
 import emu.grasscutter.utils.Utils;
@@ -33,7 +31,6 @@ import ch.qos.logback.classic.Logger;
 import emu.grasscutter.data.ResourceLoader;
 import emu.grasscutter.database.DatabaseManager;
 import emu.grasscutter.utils.Language;
-import emu.grasscutter.server.dispatch.DispatchServer;
 import emu.grasscutter.server.game.GameServer;
 import emu.grasscutter.tools.Tools;
 import emu.grasscutter.utils.Crypto;
@@ -54,7 +51,6 @@ public final class Grasscutter {
 
 	private static int day; // Current day of week.
 
-	private static DispatchServer dispatchServer;
 	private static HttpServer httpServer;
 	private static GameServer gameServer;
 	private static PluginManager pluginManager;
@@ -113,11 +109,10 @@ public final class Grasscutter {
 		authenticationSystem = new DefaultAuthentication();
 	
 		// Create server instances.
-		dispatchServer = new DispatchServer();
 		httpServer = new HttpServer();
 		gameServer = new GameServer();
 		// Create a server hook instance with both servers.
-		new ServerHook(gameServer, dispatchServer);
+		new ServerHook(gameServer, httpServer);
 		
 		// Create plugin manager instance.
 		pluginManager = new PluginManager();
@@ -129,14 +124,15 @@ public final class Grasscutter {
 		httpServer.addRouter(GenericHandler.class);
 		httpServer.addRouter(AnnouncementsHandler.class);
 		httpServer.addRouter(DispatchHandler.class);
+		httpServer.addRouter(LegacyAuthHandler.class);
+		httpServer.addRouter(GachaHandler.class);
 	
 		// Start servers.
 		var runMode = SERVER.runMode;
 		if (runMode == ServerRunMode.HYBRID) {
-			dispatchServer.start();
+			httpServer.start();
 			gameServer.start();
 		} else if (runMode == ServerRunMode.DISPATCH_ONLY) {
-			dispatchServer.start();
 			httpServer.start();
 		} else if (runMode == ServerRunMode.GAME_ONLY) {
 			gameServer.start();
@@ -258,8 +254,8 @@ public final class Grasscutter {
 		return gson;
 	}
 
-	public static DispatchServer getDispatchServer() {
-		return dispatchServer;
+	public static HttpServer getHttpServer() {
+		return httpServer;
 	}
 
 	public static GameServer getGameServer() {

src/main/java/emu/grasscutter/command/commands/ReloadCommand.java

@@ -21,7 +21,7 @@ public final class ReloadCommand implements CommandHandler {
         Grasscutter.getGameServer().getGachaManager().load();
         Grasscutter.getGameServer().getDropManager().load();
         Grasscutter.getGameServer().getShopManager().load();
-        Grasscutter.getDispatchServer().loadQueries();
+        // Grasscutter.getHttpServer().loadQueries(); // Is this practical?
         
         CommandHandler.sendMessage(sender, translate(sender, "commands.reload.reload_done"));
     }

src/main/java/emu/grasscutter/game/gacha/GachaBanner.java

@@ -98,9 +98,9 @@ public class GachaBanner {
 	}
 	
 	public GachaInfo toProto(String sessionKey) {
-		String record = "http" + (DISPATCH_INFO.encryption.useInRouting ? "s" : "") + "://"
-						+ lr(DISPATCH_INFO.accessAddress, DISPATCH_INFO.bindAddress) + ":"
-						+ lr(DISPATCH_INFO.accessPort, DISPATCH_INFO.bindPort)
+		String record = "http" + (HTTP_ENCRYPTION.useInRouting ? "s" : "") + "://"
+						+ lr(HTTP_INFO.accessAddress, HTTP_INFO.bindAddress) + ":"
+						+ lr(HTTP_INFO.accessPort, HTTP_INFO.bindPort)
 						+ "/gacha?s=" + sessionKey + "&gachaType=" + gachaType;
 		// Grasscutter.getLogger().info("record = " + record);
 		GachaInfo.Builder info = GachaInfo.newBuilder()

src/main/java/emu/grasscutter/plugin/api/ServerHook.java

 package emu.grasscutter.plugin.api;
 
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.auth.AuthenticationSystem;
 import emu.grasscutter.command.Command;
 import emu.grasscutter.command.CommandHandler;
 import emu.grasscutter.game.player.Player;
-import emu.grasscutter.server.dispatch.DispatchServer;
 import emu.grasscutter.server.game.GameServer;
+import emu.grasscutter.server.http.HttpServer;
+import emu.grasscutter.server.http.Router;
 
 import java.util.LinkedList;
 import java.util.List;
@@ -15,7 +18,7 @@ import java.util.List;
 public final class ServerHook {
     private static ServerHook instance;
     private final GameServer gameServer;
-    private final DispatchServer dispatchServer;
+    private final HttpServer httpServer;
 
     /**
      * Gets the server hook instance.
@@ -28,11 +31,11 @@ public final class ServerHook {
     /**
      * Hooks into a server.
      * @param gameServer The game server to hook into.
-     * @param dispatchServer The dispatch server to hook into.
+     * @param httpServer The HTTP server to hook into.
      */
-    public ServerHook(GameServer gameServer, DispatchServer dispatchServer) {
+    public ServerHook(GameServer gameServer, HttpServer httpServer) {
         this.gameServer = gameServer;
-        this.dispatchServer = dispatchServer;
+        this.httpServer = httpServer;
 
         instance = this;
     }
@@ -45,10 +48,10 @@ public final class ServerHook {
     }
 
     /**
-     * @return The dispatch server.
+     * @return The HTTP server.
      */
-    public DispatchServer getDispatchServer() {
-        return this.dispatchServer;
+    public HttpServer getHttpServer() {
+        return this.httpServer;
     }
 
     /**
@@ -70,4 +73,28 @@ public final class ServerHook {
         Command commandData = clazz.getAnnotation(Command.class);
         this.gameServer.getCommandMap().registerCommand(commandData.label(), handler);
     }
+
+    /**
+     * Adds a router using an instance of a class.
+     * @param router A router instance.
+     */
+    public void addRouter(Router router) {
+        this.addRouter(router.getClass());
+    }
+
+    /**
+     * Adds a router using a class.
+     * @param router The class of the router.
+     */
+    public void addRouter(Class<? extends Router> router) {
+        this.httpServer.addRouter(router);
+    }
+
+    /**
+     * Sets the server's authentication system.
+     * @param authSystem An instance of the authentication system.
+     */
+    public void setAuthSystem(AuthenticationSystem authSystem) {
+        Grasscutter.setAuthenticationSystem(authSystem);
+    }
 }
\ No newline at end of file

src/main/java/emu/grasscutter/scripts/serializer/LuaSerializer.java

@@ -70,16 +70,14 @@ public class LuaSerializer implements Serializer {
 		}
 		
 		try {
+			//noinspection ConfusingArgumentToVarargsMethod
 			object = type.getDeclaredConstructor().newInstance(null);
 			
 			LuaValue[] keys = table.keys();
 			for (LuaValue k : keys) {
 				try {
 					Field field = object.getClass().getDeclaredField(k.checkjstring());
-					if (field == null) {
-						continue;
-					}
-					
+
 					field.setAccessible(true);
 					LuaValue keyValue = table.get(k);
 

src/main/java/emu/grasscutter/server/dispatch/AnnouncementHandler.java

-package emu.grasscutter.server.dispatch;
-
-import emu.grasscutter.Grasscutter;
-import express.http.HttpContextHandler;
-import express.http.Request;
-import express.http.Response;
-
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.util.Objects;
-
-import static emu.grasscutter.Configuration.*;
-
-public final class AnnouncementHandler implements HttpContextHandler {
-    @Override
-    public void handle(Request request, Response response) throws IOException {//event
-        if (Objects.equals(request.baseUrl(), "/common/hk4e_global/announcement/api/getAnnContent")) {
-            response.send("{\"retcode\":0,\"message\":\"OK\",\"data\":" + readToString(new File(DATA("GameAnnouncement.json"))) +"}");
-        } else if (Objects.equals(request.baseUrl(), "/common/hk4e_global/announcement/api/getAnnList")) {
-            String data = readToString(new File(DATA("GameAnnouncementList.json"))).replace("System.currentTimeMillis()",String.valueOf(System.currentTimeMillis()));
-            response.send("{\"retcode\":0,\"message\":\"OK\",\"data\": "+data +"}");
-        }
-    }
-    @SuppressWarnings("ResultOfMethodCallIgnored")
-    private static String readToString(File file) {
-        long length = file.length();
-        byte[] content = new byte[(int) length];
-        try {
-            FileInputStream in = new FileInputStream(file);
-            in.read(content); in.close();
-        } catch (IOException ignored) {
-            Grasscutter.getLogger().warn("File not found: " + file.getAbsolutePath());
-        }
-        
-        return new String(content);
-    }
-}
\ No newline at end of file

src/main/java/emu/grasscutter/server/dispatch/ClientLogHandler.java

-package emu.grasscutter.server.dispatch;
-
-import express.http.HttpContextHandler;
-import express.http.Request;
-import express.http.Response;
-
-import java.io.IOException;
-
-/**
- * Used for processing crash dumps and logs generated by the game.
- * Logs are in JSON, and are sent to the server for logging.
- */
-public final class ClientLogHandler implements HttpContextHandler {
-    @Override
-    public void handle(Request request, Response response) throws IOException {
-        // TODO: Figure out how to dump request body and log to file.
-        response.send("{\"code\":0}");
-    }
-}

src/main/java/emu/grasscutter/server/dispatch/authentication/AuthenticationHandler.java

-package emu.grasscutter.server.dispatch.authentication;
-
-import emu.grasscutter.server.dispatch.json.LoginAccountRequestJson;
-import emu.grasscutter.server.dispatch.json.LoginResultJson;
-import express.http.Request;
-import express.http.Response;
-
-public interface AuthenticationHandler {
-
-    // This is in case plugins also want some sort of authentication
-    void handleLogin(Request req, Response res);
-    void handleRegister(Request req, Response res);
-    void handleChangePassword(Request req, Response res);
-
-    LoginResultJson handleGameLogin(Request req, LoginAccountRequestJson requestData);
-}

src/main/java/emu/grasscutter/server/dispatch/authentication/DefaultAuthenticationHandler.java

-package emu.grasscutter.server.dispatch.authentication;
-
-import emu.grasscutter.Grasscutter;
-import emu.grasscutter.database.DatabaseHelper;
-import emu.grasscutter.game.Account;
-import emu.grasscutter.server.dispatch.json.LoginAccountRequestJson;
-import emu.grasscutter.server.dispatch.json.LoginResultJson;
-import express.http.Request;
-import express.http.Response;
-
-import static emu.grasscutter.utils.Language.translate;
-import static emu.grasscutter.Configuration.*;
-
-public class DefaultAuthenticationHandler implements AuthenticationHandler {
-
-    @Override
-    public void handleLogin(Request req, Response res) {
-        res.send("Authentication is not available with the default authentication method");
-    }
-
-    @Override
-    public void handleRegister(Request req, Response res) {
-        res.send("Authentication is not available with the default authentication method");
-    }
-
-    @Override
-    public void handleChangePassword(Request req, Response res) {
-        res.send("Authentication is not available with the default authentication method");
-    }
-
-    @Override
-    public LoginResultJson handleGameLogin(Request req, LoginAccountRequestJson requestData) {
-        LoginResultJson responseData = new LoginResultJson();
-
-        // Login
-        Account account = DatabaseHelper.getAccountByName(requestData.account);
-
-        // Check if account exists, else create a new one.
-        if (account == null) {
-            // Account doesn't exist, so we can either auto create it if the config value is set.
-            if (ACCOUNT.autoCreate) {
-                // This account has been created AUTOMATICALLY. There will be no permissions added.
-                account = DatabaseHelper.createAccountWithId(requestData.account, 0);
-
-                for (String permission : ACCOUNT.defaultPermissions) {
-                    account.addPermission(permission);
-                }
-
-                if (account != null) {
-                    responseData.message = "OK";
-                    responseData.data.account.uid = account.getId();
-                    responseData.data.account.token = account.generateSessionKey();
-                    responseData.data.account.email = account.getEmail();
-
-                    Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_success", req.ip(), responseData.data.account.uid));
-                } else {
-                    responseData.retcode = -201;
-                    responseData.message = translate("messages.dispatch.account.username_create_error");
-
-                    Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_create_error", req.ip()));
-                }
-            } else {
-                responseData.retcode = -201;
-                responseData.message = translate("messages.dispatch.account.username_error");
-
-                Grasscutter.getLogger().info(translate("messages.dispatch.account.account_login_exist_error", req.ip()));
-            }
-        } else {
-            // Account was found, log the player in
-            responseData.message = "OK";
-            responseData.data.account.uid = account.getId();
-            responseData.data.account.token = account.generateSessionKey();
-            responseData.data.account.email = account.getEmail();
-
-            Grasscutter.getLogger().info(translate("messages.dispatch.account.login_success", req.ip(), responseData.data.account.uid));
-        }
-
-        return responseData;
-    }
-}

src/main/java/emu/grasscutter/server/dispatch/http/GachaRecordHandler.java

-package emu.grasscutter.server.dispatch.http;
-
-import java.io.File;
-import java.io.IOException;
-
-import emu.grasscutter.database.DatabaseHelper;
-import emu.grasscutter.game.Account;
-import emu.grasscutter.utils.FileUtils;
-import emu.grasscutter.utils.Utils;
-import express.http.HttpContextHandler;
-import express.http.Request;
-import express.http.Response;
-
-import static emu.grasscutter.Configuration.*;
-
-public final class GachaRecordHandler implements HttpContextHandler {
-	String render_template;
-	public GachaRecordHandler() {
-		File template = new File(Utils.toFilePath(DATA("/gacha_records.html")));
-		if (template.exists()) {
-			// Load from cache
-			render_template = new String(FileUtils.read(template));
-		} else {
-			render_template = "{{REPLACE_RECORD}}";
-		}
-	}
-
-	@Override
-	public void handle(Request req, Response res) throws IOException {
-		// Grasscutter.getLogger().info( req.query().toString() );
-		String sessionKey = req.query("s");
-		int page = 0;
-		int gachaType = 0;
-		if (req.query("p") != null) {
-			page = Integer.parseInt(req.query("p"));
-		}
-
-		if (req.query("gachaType") != null) {
-			gachaType = Integer.parseInt(req.query("gachaType"));
-		}
-
-		Account account = DatabaseHelper.getAccountBySessionKey(sessionKey);
-		if (account != null) {
-			String records = DatabaseHelper.getGachaRecords(account.getPlayerUid(), page, gachaType).toString();
-			// Grasscutter.getLogger().info(records);
-			String response = render_template.replace("{{REPLACE_RECORD}}", records)
-							.replace("{{REPLACE_MAXPAGE}}", String.valueOf(DatabaseHelper.getGachaRecordsMaxPage(account.getPlayerUid(), page, gachaType)));
-
-			res.send(response);
-		} else {
-			res.send("No account found.");
-		}
-	}
-}

src/main/java/emu/grasscutter/server/dispatch/json/ComboTokenReqJson.java

-package emu.grasscutter.server.dispatch.json;
-
-public class ComboTokenReqJson {
-	public int app_id;
-	public int channel_id;
-	public String data;
-	public String device;
-	public String sign;
-	
-	public static class LoginTokenData {
-		public String uid;
-		public String token;
-		public boolean guest;
-	}
-}

src/main/java/emu/grasscutter/server/dispatch/json/ComboTokenResJson.java

-package emu.grasscutter.server.dispatch.json;
-
-public class ComboTokenResJson {
-	public String message;
-	public int retcode;
-	public LoginData data = new LoginData();
-	
-	public static class LoginData {
-		public int account_type = 1;
-		public boolean heartbeat;
-		public String combo_id;
-		public String combo_token;
-		public String open_id;
-		public String data = "{\"guest\":false}";
-		public String fatigue_remind = null; // ?
-	}
-}

src/main/java/emu/grasscutter/server/dispatch/json/LoginAccountRequestJson.java

-package emu.grasscutter.server.dispatch.json;
-
-public class LoginAccountRequestJson {
-	public String account;
-	public String password;
-	public boolean is_crypto;
-}

src/main/java/emu/grasscutter/server/dispatch/json/LoginResultJson.java

-package emu.grasscutter.server.dispatch.json;
-
-public class LoginResultJson {
-	public String message;
-	public int retcode;
-	public VerifyData data = new VerifyData();
-	
-	public static class VerifyData {
-		public VerifyAccountData account = new VerifyAccountData();
-		public boolean device_grant_required = false;
-		public String realname_operation = "NONE";
-		public boolean realperson_required = false;
-		public boolean safe_mobile_required = false;
-	}
-	
-	public static class VerifyAccountData {
-		public String uid;
-		public String name = "";
-		public String email = "";
-		public String mobile = "";
-		public String is_email_verify = "0";
-		public String realname = "";
-		public String identity_card = "";
-		public String token;
-		public String safe_mobile = "";
-		public String facebook_name = "";
-		public String twitter_name = "";
-		public String game_center_name = "";
-		public String google_name = "";
-		public String apple_name = "";
-		public String sony_name = "";
-		public String tap_name = "";
-		public String country = "US";
-		public String reactivate_ticket = "";
-		public String area_code = "**";
-		public String device_grant_ticket = "";
-	}
-}

src/main/java/emu/grasscutter/server/dispatch/json/LoginTokenRequestJson.java

-package emu.grasscutter.server.dispatch.json;
-
-public class LoginTokenRequestJson {
-	public String uid;
-	public String token;
-}

src/main/java/emu/grasscutter/server/http/HttpServer.java

@@ -162,11 +162,11 @@ public final class HttpServer {
                         <!DOCTYPE html>
                         <html>
                             <head>
-                                <meta charset=\\"utf8\\">
+                                <meta charset="utf8">
                             </head>
                             
                             <body>
-                                <img src=\\"https://http.cat/404\\" />
+                                <img src="https://http.cat/404" />
                             </body>
                         </html>
                         """);

src/main/java/emu/grasscutter/server/http/dispatch/RegionHandler.java

@@ -151,8 +151,10 @@ public final class RegionHandler implements Router {
         
         // Get region data.
         String regionData = "CAESGE5vdCBGb3VuZCB2ZXJzaW9uIGNvbmZpZw==";
-        if (request.query().values().size() > 0)
-            regionData = regions.get(regionName).getBase64();
+        if (request.query().values().size() > 0) {
+            var region = regions.get(regionName);
+            if(region != null) regionData = region.getBase64();
+        }
         
         // Invoke event.
         QueryCurrentRegionEvent event = new QueryCurrentRegionEvent(regionData); event.call();
@@ -183,4 +185,12 @@ public final class RegionHandler implements Router {
             return this.base64;
         }
     }
+
+    /**
+     * Gets the current region query.
+     * @return A {@link QueryCurrRegionHttpRsp} object.
+     */
+    public static QueryCurrRegionHttpRsp getCurrentRegion() {
+        return SERVER.runMode == ServerRunMode.HYBRID ? regions.get("os_usa").getRegionQuery() : null;
+    }
 }

src/main/java/emu/grasscutter/server/http/handlers/AnnouncementsHandler.java

 package emu.grasscutter.server.http.handlers;
 
 import emu.grasscutter.Grasscutter;
-import emu.grasscutter.server.dispatch.DispatchHttpJsonHandler;
+import emu.grasscutter.server.http.objects.HttpJsonResponse;
 import emu.grasscutter.server.http.Router;
 import express.Express;
 import express.http.Request;
@@ -21,15 +21,15 @@ import static emu.grasscutter.Configuration.DATA;
 public final class AnnouncementsHandler implements Router {
     @Override public void applyRoutes(Express express, Javalin handle) {
         // hk4e-api-os.hoyoverse.com
-        express.all("/common/hk4e_global/announcement/api/getAlertPic", new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"total\":0,\"list\":[]}}"));
+        express.all("/common/hk4e_global/announcement/api/getAlertPic", new HttpJsonResponse("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"total\":0,\"list\":[]}}"));
         // hk4e-api-os.hoyoverse.com
-        express.all("/common/hk4e_global/announcement/api/getAlertAnn", new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"alert\":false,\"alert_id\":0,\"remind\":true}}"));
+        express.all("/common/hk4e_global/announcement/api/getAlertAnn", new HttpJsonResponse("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"alert\":false,\"alert_id\":0,\"remind\":true}}"));
         // hk4e-api-os.hoyoverse.com
         express.all("/common/hk4e_global/announcement/api/getAnnList", AnnouncementsHandler::getAnnouncement);
         // hk4e-api-os-static.hoyoverse.com
         express.all("/common/hk4e_global/announcement/api/getAnnContent", AnnouncementsHandler::getAnnouncement);
         // hk4e-sdk-os.hoyoverse.com
-        express.all("/hk4e_global/mdk/shopwindow/shopwindow/listPriceTier", new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"suggest_currency\":\"USD\",\"tiers\":[]}}"));
+        express.all("/hk4e_global/mdk/shopwindow/shopwindow/listPriceTier", new HttpJsonResponse("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"suggest_currency\":\"USD\",\"tiers\":[]}}"));
     }
     
     private static void getAnnouncement(Request request, Response response) {

src/main/java/emu/grasscutter/server/http/handlers/GachaHandler.java

+package emu.grasscutter.server.http.handlers;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.database.DatabaseHelper;
+import emu.grasscutter.server.http.Router;
+import emu.grasscutter.tools.Tools;
+import emu.grasscutter.utils.FileUtils;
+import emu.grasscutter.utils.Utils;
+import express.Express;
+import express.http.Request;
+import express.http.Response;
+import io.javalin.Javalin;
+import io.javalin.http.staticfiles.Location;
+
+import java.io.File;
+
+import static emu.grasscutter.Configuration.DATA;
+
+/**
+ * Handles all gacha-related HTTP requests.
+ */
+public final class GachaHandler implements Router {
+    private final String gachaMappings;
+    
+    private static String frontendTemplate = "{{REPLACE_RECORD}}";
+    
+    public GachaHandler() {
+        this.gachaMappings = Utils.toFilePath(DATA("/gacha_mappings.js"));
+        if(!(new File(this.gachaMappings).exists())) {
+            try {
+                Tools.createGachaMapping(this.gachaMappings);
+            } catch (Exception exception) {
+                Grasscutter.getLogger().warn("Failed to create gacha mappings.", exception);
+            }
+        }
+        
+        var templateFile = new File(DATA("/gacha_records.html"));
+        if(templateFile.exists())
+            frontendTemplate = new String(FileUtils.read(templateFile));
+    }
+    
+    @Override public void applyRoutes(Express express, Javalin handle) {
+        express.get("/gacha", GachaHandler::gachaRecords);
+        
+        express.useStaticFallback("/gacha/mappings", this.gachaMappings, Location.EXTERNAL);
+    }
+    
+    private static void gachaRecords(Request request, Response response) {
+        var sessionKey = request.query("s");
+        
+        int page = 0, gachaType = 0;
+        if(request.query("p") != null)
+            page = Integer.parseInt(request.query("p"));
+        if(request.query("gachaType") != null)
+            gachaType = Integer.parseInt(request.query("gachaType"));
+        
+        // Get account from session key.
+        var account = DatabaseHelper.getAccountBySessionKey(sessionKey);
+        
+        if(account == null) // Send response.
+            response.status(404).send("Unable to find account.");
+        else {
+            String records = DatabaseHelper.getGachaRecords(account.getPlayerUid(), gachaType, page).toString();
+            long maxPage = DatabaseHelper.getGachaRecordsMaxPage(account.getPlayerUid(), page, gachaType);
+            
+            response.send(frontendTemplate
+                    .replace("{{REPLACE_RECORD}}", records)
+                    .replace("{{REPLACE_MAXPAGE}}", String.valueOf(maxPage)));
+        }
+    }
+}