Merge pull request #78 from MlgmXyysd/dispatch-refactor

 Refact dispatch server

proxy.py

@@ -16,12 +16,14 @@
 #     - mitmdump from mitmproxy
 #
 #   @author MlgmXyysd
-#   @version 1.0
+#   @version 1.1
 #
 ##
 
 from mitmproxy import http
+from proxy_config import USE_SSL
 from proxy_config import REMOTE_HOST
+from proxy_config import REMOTE_PORT
 
 class MlgmXyysd_Genshin_Impact_Proxy:
 
@@ -60,7 +62,12 @@ class MlgmXyysd_Genshin_Impact_Proxy:
 
     def request(self, flow: http.HTTPFlow) -> None:
         if flow.request.host in self.LIST_DOMAINS:
+            if USE_SSL:
+                flow.request.scheme = "https"
+            else:
+                flow.request.scheme = "http"
             flow.request.host = REMOTE_HOST
+            flow.request.port = REMOTE_PORT
 
 addons = [
 	MlgmXyysd_Genshin_Impact_Proxy()

proxy_config.py

 # This can also be replaced with another IP address.
-REMOTE_HOST = "localhost"
+USE_SSL = True
\ No newline at end of file
+REMOTE_HOST = "127.0.0.1"
+REMOTE_PORT = 443
\ No newline at end of file

src/main/java/emu/grasscutter/Config.java

 package emu.grasscutter;
 
 public final class Config {
-	public String DispatchServerIp = "127.0.0.1";
-	public String DispatchServerPublicIp = "";
+	public String DispatchServerIp = "0.0.0.0";
+	public String DispatchServerPublicIp = "127.0.0.1";
 	public int DispatchServerPort = 443;
 	public String DispatchServerKeystorePath = "./keystore.p12";
 	public String DispatchServerKeystorePassword = "";
 	public Boolean UseSSL = true;
 	
 	public String GameServerName = "Test";
-	public String GameServerIp = "127.0.0.1";
-	public String GameServerPublicIp = "";
+	public String GameServerIp = "0.0.0.0";
+	public String GameServerPublicIp = "127.0.0.1";
 	public int GameServerPort = 22102;
-	
-	public int OverseaLogPort = 8888;
-	public int UploadLogPort = 80;
-	
+
 	public String DatabaseUrl = "mongodb://localhost:27017";
 	public String DatabaseCollection = "grasscutter";
-	
+
 	public String RESOURCE_FOLDER = "./resources/";
 	public String DATA_FOLDER = "./data/";
 	public String PACKETS_FOLDER = "./packets/";
@@ -28,21 +25,21 @@ public final class Config {
 
 	public GameRates Game = new GameRates();
 	public ServerOptions ServerOptions = new ServerOptions();
-	
+
 	public GameRates getGameRates() {
 		return Game;
 	}
-	
+
 	public ServerOptions getServerOptions() {
 		return ServerOptions;
 	}
-	
+
 	public static class GameRates {
 		public float ADVENTURE_EXP_RATE = 1.0f;
 		public float MORA_RATE = 1.0f;
 		public float DOMAIN_DROP_RATE = 1.0f;
 	}
-	
+
 	public static class ServerOptions {
 		public int InventoryLimitWeapon = 2000;
 		public int InventoryLimitRelic = 2000;

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

 package emu.grasscutter.server.dispatch;
 
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.io.UnsupportedEncodingException;
-import java.net.InetSocketAddress;
-import java.net.URI;
-import java.net.URLDecoder;
-import java.security.KeyStore;
-import java.util.Base64;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Map;
-
-import javax.net.ssl.KeyManagerFactory;
-import javax.net.ssl.SSLContext;
-
 import com.google.gson.Gson;
 import com.google.gson.GsonBuilder;
 import com.google.protobuf.ByteString;
 import com.sun.net.httpserver.HttpExchange;
-import com.sun.net.httpserver.HttpHandler;
+import com.sun.net.httpserver.HttpServer;
 import com.sun.net.httpserver.HttpsConfigurator;
 import com.sun.net.httpserver.HttpsServer;
-
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.Account;
@@ -32,40 +14,44 @@ import emu.grasscutter.net.proto.QueryCurrRegionHttpRspOuterClass.QueryCurrRegio
 import emu.grasscutter.net.proto.QueryRegionListHttpRspOuterClass.QueryRegionListHttpRsp;
 import emu.grasscutter.net.proto.RegionInfoOuterClass.RegionInfo;
 import emu.grasscutter.net.proto.RegionSimpleInfoOuterClass.RegionSimpleInfo;
-import emu.grasscutter.server.dispatch.json.ComboTokenReqJson;
-import emu.grasscutter.server.dispatch.json.ComboTokenResJson;
-import emu.grasscutter.server.dispatch.json.LoginAccountRequestJson;
-import emu.grasscutter.server.dispatch.json.LoginResultJson;
-import emu.grasscutter.server.dispatch.json.LoginTokenRequestJson;
+import emu.grasscutter.server.dispatch.json.*;
 import emu.grasscutter.server.dispatch.json.ComboTokenReqJson.LoginTokenData;
 import emu.grasscutter.utils.FileUtils;
 import emu.grasscutter.utils.Utils;
 
-import com.sun.net.httpserver.HttpServer;
+import javax.net.ssl.KeyManagerFactory;
+import javax.net.ssl.SSLContext;
+import java.io.*;
+import java.net.InetSocketAddress;
+import java.net.URI;
+import java.net.URLDecoder;
+import java.security.KeyStore;
+import java.util.Base64;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Map;
 
 public final class DispatchServer {
+	public static String query_region_list = "";
+	public static String query_cur_region = "";
 	private final InetSocketAddress address;
 	private final Gson gson;
-	private QueryCurrRegionHttpRsp currRegion;
-	
 	public String regionListBase64;
 	public String regionCurrentBase64;
-	
-	public static String query_region_list = "";
-	public static String query_cur_region = "";
-	
+	private QueryCurrRegionHttpRsp currRegion;
+
 	public DispatchServer() {
 		this.address = new InetSocketAddress(Grasscutter.getConfig().DispatchServerIp, Grasscutter.getConfig().DispatchServerPort);
 		this.gson = new GsonBuilder().create();
-		
+
 		this.loadQueries();
 		this.initRegion();
 	}
-	
+
 	public InetSocketAddress getAddress() {
 		return address;
 	}
-	
+
 	public Gson getGsonFactory() {
 		return gson;
 	}
@@ -73,22 +59,22 @@ public final class DispatchServer {
 	public QueryCurrRegionHttpRsp getCurrRegion() {
 		return currRegion;
 	}
-	
+
 	public void loadQueries() {
 		File file;
-		
+
 		file = new File(Grasscutter.getConfig().DATA_FOLDER + "query_region_list.txt");
 		if (file.exists()) {
 			query_region_list = new String(FileUtils.read(file));
 		} else {
-			Grasscutter.getLogger().warn("query_region_list not found! Using default region list.");
+			Grasscutter.getLogger().warn("[Dispatch] query_region_list not found! Using default region list.");
 		}
-	
+
 		file = new File(Grasscutter.getConfig().DATA_FOLDER + "query_cur_region.txt");
 		if (file.exists()) {
 			query_cur_region = new String(FileUtils.read(file));
 		} else {
-			Grasscutter.getLogger().warn("query_cur_region not found! Using default current region.");
+			Grasscutter.getLogger().warn("[Dispatch] query_cur_region not found! Using default current region.");
 		}
 	}
 
@@ -96,51 +82,51 @@ public final class DispatchServer {
 		try {
 			byte[] decoded = Base64.getDecoder().decode(query_region_list);
 			QueryRegionListHttpRsp rl = QueryRegionListHttpRsp.parseFrom(decoded);
-			
+
 			byte[] decoded2 = Base64.getDecoder().decode(query_cur_region);
 			QueryCurrRegionHttpRsp regionQuery = QueryCurrRegionHttpRsp.parseFrom(decoded2);
-			
+
 			RegionSimpleInfo server = RegionSimpleInfo.newBuilder()
 					.setName("os_usa")
 					.setTitle(Grasscutter.getConfig().GameServerName)
 					.setType("DEV_PUBLIC")
 					.setDispatchUrl("https://" + (Grasscutter.getConfig().DispatchServerPublicIp.isEmpty() ? Grasscutter.getConfig().DispatchServerIp : Grasscutter.getConfig().DispatchServerPublicIp) + ":" + getAddress().getPort() + "/query_cur_region")
 					.build();
-			
+
 			RegionSimpleInfo serverTest2 = RegionSimpleInfo.newBuilder()
 					.setName("os_euro")
 					.setTitle("Grasscutter")
 					.setType("DEV_PUBLIC")
 					.setDispatchUrl("https://" + (Grasscutter.getConfig().DispatchServerPublicIp.isEmpty() ? Grasscutter.getConfig().DispatchServerIp : Grasscutter.getConfig().DispatchServerPublicIp) + ":" + getAddress().getPort() + "/query_cur_region")
 					.build();
-				
+
 			QueryRegionListHttpRsp regionList = QueryRegionListHttpRsp.newBuilder()
-				.addServers(server)
-				.addServers(serverTest2)
-				.setClientSecretKey(rl.getClientSecretKey())
-			    .setClientCustomConfigEncrypted(rl.getClientCustomConfigEncrypted())
-			    .setEnableLoginPc(true)
-				.build();
-						
+					.addServers(server)
+					.addServers(serverTest2)
+					.setClientSecretKey(rl.getClientSecretKey())
+					.setClientCustomConfigEncrypted(rl.getClientCustomConfigEncrypted())
+					.setEnableLoginPc(true)
+					.build();
+
 			RegionInfo currentRegion = regionQuery.getRegionInfo().toBuilder()
 					.setIp((Grasscutter.getConfig().GameServerPublicIp.isEmpty() ? Grasscutter.getConfig().GameServerIp : Grasscutter.getConfig().GameServerPublicIp))
 					.setPort(Grasscutter.getConfig().GameServerPort)
 					.setSecretKey(ByteString.copyFrom(FileUtils.read(Grasscutter.getConfig().KEY_FOLDER + "dispatchSeed.bin")))
 					.build();
-			
+
 			QueryCurrRegionHttpRsp parsedRegionQuery = regionQuery.toBuilder().setRegionInfo(currentRegion).build();
 
 			this.regionListBase64 = Base64.getEncoder().encodeToString(regionList.toByteString().toByteArray());
 			this.regionCurrentBase64 = Base64.getEncoder().encodeToString(parsedRegionQuery.toByteString().toByteArray());
 			this.currRegion = parsedRegionQuery;
 		} catch (Exception e) {
-			Grasscutter.getLogger().error("Error while initializing region info!", e);
+			Grasscutter.getLogger().error("[Dispatch] Error while initializing region info!", e);
 		}
 	}
 
 	public void start() throws Exception {
 		HttpServer server;
-		if(Grasscutter.getConfig().UseSSL) {
+		if (Grasscutter.getConfig().UseSSL) {
 			HttpsServer httpsServer;
 			httpsServer = HttpsServer.create(getAddress(), 0);
 			SSLContext sslContext = SSLContext.getInstance("TLS");
@@ -150,61 +136,40 @@ public final class DispatchServer {
 				ks.load(fis, keystorePassword);
 				KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509");
 				kmf.init(ks, keystorePassword);
-				
+
 				sslContext.init(kmf.getKeyManagers(), null, null);
-				
+
 				httpsServer.setHttpsConfigurator(new HttpsConfigurator(sslContext));
 				server = httpsServer;
 			} catch (Exception e) {
-				Grasscutter.getLogger().error("No SSL cert found!");
-				return;
+				Grasscutter.getLogger().warn("[Dispatch] No SSL cert found! Falling back to HTTP server.");
+				Grasscutter.getConfig().UseSSL = false;
+				server = HttpServer.create(getAddress(), 0);
 			}
 		} else {
 			server = HttpServer.create(getAddress(), 0);
 		}
-		
-		server.createContext("/", t -> {
-			//Create a response form the request query parameters
-			String response = "Hello";
-			//Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("text/html; charset=UTF-8"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			//Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
-		});
-		
+
+		server.createContext("/", t -> responseHTML(t, "Hello"));
+
 		// Dispatch
 		server.createContext("/query_region_list", t -> {
 			// Log
-			Grasscutter.getLogger().info("Client request: query_region_list");
-			// Create a response form the request query parameters
-			String response = regionListBase64;
-			// Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("text/html; charset=UTF-8"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			// Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
+			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s request: query_region_list", t.getRemoteAddress()));
+
+			responseHTML(t, regionListBase64);
 		});
 		server.createContext("/query_cur_region", t -> {
 			// Log
-			Grasscutter.getLogger().info("Client request: query_cur_region");
+			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s request: query_cur_region", t.getRemoteAddress()));
 			// Create a response form the request query parameters
 			URI uri = t.getRequestURI();
 			String response = "CAESGE5vdCBGb3VuZCB2ZXJzaW9uIGNvbmZpZw==";
 			if (uri.getQuery() != null && uri.getQuery().length() > 0) {
 				response = regionCurrentBase64;
 			}
-			// Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("text/html; charset=UTF-8"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			// Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
+
+			responseHTML(t, response);
 		});
 		// Login via account
 		server.createContext("/hk4e_global/mdk/shield/api/login", t -> {
@@ -213,51 +178,58 @@ public final class DispatchServer {
 			try {
 				String body = Utils.toString(t.getRequestBody());
 				requestData = getGsonFactory().fromJson(body, LoginAccountRequestJson.class);
-			} catch (Exception e) {
-				
+			} catch (Exception ignored) {
 			}
 			// Create response json
 			if (requestData == null) {
 				return;
 			}
 			LoginResultJson responseData = new LoginResultJson();
-			
+
+			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s is trying to log in", t.getRemoteAddress()));
+
 			// Login
 			Account account = DatabaseHelper.getAccountByName(requestData.account);
-			
+
 			// Check if account exists, else create a new one.
 			if (account == null) {
 				// Account doesnt exist, so we can either auto create it if the config value is set
 				if (Grasscutter.getConfig().ServerOptions.AutomaticallyCreateAccounts) {
 					// This account has been created AUTOMATICALLY. There will be no permissions added.
 					account = DatabaseHelper.createAccountWithId(requestData.account, 0);
-					
-					responseData.message = "OK";
-					responseData.data.account.uid = account.getId();
-					responseData.data.account.token = account.generateSessionKey();
-					responseData.data.account.email = account.getEmail();
+
+					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(String.format("[Dispatch] Client %s failed to log in: Account %s created", t.getRemoteAddress(), responseData.data.account.uid));
+					} else {
+						responseData.retcode = -201;
+						responseData.message = "Username not found, create failed.";
+
+						Grasscutter.getLogger().info(String.format("[Dispatch] Client %s failed to log in: Account create failed", t.getRemoteAddress()));
+					}
 				} else {
 					responseData.retcode = -201;
 					responseData.message = "Username not found.";
-				} 
+
+					Grasscutter.getLogger().info(String.format("[Dispatch] Client %s failed to log in: Account no found", t.getRemoteAddress()));
+				}
 			} 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(String.format("[Dispatch] Client %s logged in as %s", t.getRemoteAddress(), responseData.data.account.uid));
 			}
-			
-			// Create a response
-			String response = getGsonFactory().toJson(responseData);
-			// Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("application/json"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			// Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
+
+			responseJSON(t, responseData);
 		});
+
 		// Login via token
 		server.createContext("/hk4e_global/mdk/shield/api/verify", t -> {
 			// Get post data
@@ -265,38 +237,34 @@ public final class DispatchServer {
 			try {
 				String body = Utils.toString(t.getRequestBody());
 				requestData = getGsonFactory().fromJson(body, LoginTokenRequestJson.class);
-			} catch (Exception e) {
-				
+			} catch (Exception ignored) {
 			}
 			// Create response json
 			if (requestData == null) {
 				return;
 			}
 			LoginResultJson responseData = new LoginResultJson();
+			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s is trying to log in via token", t.getRemoteAddress()));
 
 			// Login
 			Account account = DatabaseHelper.getAccountById(requestData.uid);
-			
+
 			// Test
 			if (account == null || !account.getSessionKey().equals(requestData.token)) {
 				responseData.retcode = -111;
 				responseData.message = "Game account cache information error";
+
+				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s failed to log in via token", t.getRemoteAddress()));
 			} else {
 				responseData.message = "OK";
 				responseData.data.account.uid = requestData.uid;
 				responseData.data.account.token = requestData.token;
 				responseData.data.account.email = account.getEmail();
+
+				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s logged in via token as %s", t.getRemoteAddress(), responseData.data.account.uid));
 			}
-			
-			// Create a response
-			String response = getGsonFactory().toJson(responseData);
-			// Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("application/json"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			// Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
+
+			responseJSON(t, responseData);
 		});
 		// Exchange for combo token
 		server.createContext("/hk4e_global/combo/granter/login/v2/login", t -> {
@@ -305,8 +273,7 @@ public final class DispatchServer {
 			try {
 				String body = Utils.toString(t.getRequestBody());
 				requestData = getGsonFactory().fromJson(body, ComboTokenReqJson.class);
-			} catch (Exception e) {
-				
+			} catch (Exception ignored) {
 			}
 			// Create response json
 			if (requestData == null || requestData.data == null) {
@@ -317,40 +284,36 @@ public final class DispatchServer {
 
 			// Login
 			Account account = DatabaseHelper.getAccountById(loginData.uid);
-			
+
 			// Test
 			if (account == null || !account.getSessionKey().equals(loginData.token)) {
 				responseData.retcode = -201;
 				responseData.message = "Wrong session key.";
+
+				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s failed to exchange combo token", t.getRemoteAddress()));
 			} else {
 				responseData.message = "OK";
 				responseData.data.open_id = loginData.uid;
 				responseData.data.combo_id = "157795300";
 				responseData.data.combo_token = account.generateLoginToken();
+
+				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s succeed to exchange combo token", t.getRemoteAddress()));
 			}
-			
-			// Create a response
-			String response = getGsonFactory().toJson(responseData);
-			// Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("application/json"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			// Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
+
+			responseJSON(t, responseData);
 		});
 		// Agreement and Protocol
 		server.createContext( // hk4e-sdk-os.hoyoverse.com
-				"/hk4e_global/mdk/agreement/api/getAgreementInfos", 
+				"/hk4e_global/mdk/agreement/api/getAgreementInfos",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"marketing_agreements\":[]}}")
 		);
 		server.createContext( // hk4e-sdk-os.hoyoverse.com
-				"/hk4e_global/combo/granter/api/compareProtocolVersion", 
+				"/hk4e_global/combo/granter/api/compareProtocolVersion",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"modified\":true,\"protocol\":{\"id\":0,\"app_id\":4,\"language\":\"en\",\"user_proto\":\"\",\"priv_proto\":\"\",\"major\":7,\"minimum\":0,\"create_time\":\"0\",\"teenager_proto\":\"\",\"third_proto\":\"\"}}}")
 		);
 		// Game data
 		server.createContext( // hk4e-api-os.hoyoverse.com
-				"/common/hk4e_global/announcement/api/getAlertPic", 
+				"/common/hk4e_global/announcement/api/getAlertPic",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"total\":0,\"list\":[]}}")
 		);
 		server.createContext( // hk4e-api-os.hoyoverse.com
@@ -358,110 +321,119 @@ public final class DispatchServer {
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"alert\":false,\"alert_id\":0,\"remind\":true}}")
 		);
 		server.createContext( // hk4e-api-os.hoyoverse.com
-				"/common/hk4e_global/announcement/api/getAnnList", 
+				"/common/hk4e_global/announcement/api/getAnnList",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"list\":[],\"total\":0,\"type_list\":[],\"alert\":false,\"alert_id\":0,\"timezone\":0,\"t\":\"" + System.currentTimeMillis() + "\"}}")
 		);
 		server.createContext( // hk4e-api-os-static.hoyoverse.com
-				"/common/hk4e_global/announcement/api/getAnnContent", 
+				"/common/hk4e_global/announcement/api/getAnnContent",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"list\":[],\"total\":0}}")
 		);
 		server.createContext( // hk4e-sdk-os.hoyoverse.com
-				"/hk4e_global/mdk/shopwindow/shopwindow/listPriceTier", 
+				"/hk4e_global/mdk/shopwindow/shopwindow/listPriceTier",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"suggest_currency\":\"USD\",\"tiers\":[]}}")
 		);
 		// Captcha
 		server.createContext( // api-account-os.hoyoverse.com
-				"/account/risky/api/check", 
+				"/account/risky/api/check",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"id\":\"c8820f246a5241ab9973f71df3ddd791\",\"action\":\"\",\"geetest\":{\"challenge\":\"\",\"gt\":\"\",\"new_captcha\":0,\"success\":1}}}")
 		);
 		// Config	
 		server.createContext( // sdk-os-static.hoyoverse.com
-				"/combo/box/api/config/sdk/combo", 
+				"/combo/box/api/config/sdk/combo",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"vals\":{\"disable_email_bind_skip\":\"false\",\"email_bind_remind_interval\":\"7\",\"email_bind_remind\":\"true\"}}}")
 		);
 		server.createContext( // hk4e-sdk-os-static.hoyoverse.com
-				"/hk4e_global/combo/granter/api/getConfig", 
+				"/hk4e_global/combo/granter/api/getConfig",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"protocol\":true,\"qr_enabled\":false,\"log_level\":\"INFO\",\"announce_url\":\"https://webstatic-sea.hoyoverse.com/hk4e/announcement/index.html?sdk_presentation_style=fullscreen\\u0026sdk_screen_transparent=true\\u0026game_biz=hk4e_global\\u0026auth_appid=announcement\\u0026game=hk4e#/\",\"push_alias_type\":2,\"disable_ysdk_guard\":false,\"enable_announce_pic_popup\":true}}")
 		);
 		server.createContext( // hk4e-sdk-os-static.hoyoverse.com
-				"/hk4e_global/mdk/shield/api/loadConfig", 
+				"/hk4e_global/mdk/shield/api/loadConfig",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"message\":\"OK\",\"data\":{\"id\":6,\"game_key\":\"hk4e_global\",\"client\":\"PC\",\"identity\":\"I_IDENTITY\",\"guest\":false,\"ignore_versions\":\"\",\"scene\":\"S_NORMAL\",\"name\":\"原神海外\",\"disable_regist\":false,\"enable_email_captcha\":false,\"thirdparty\":[\"fb\",\"tw\"],\"disable_mmt\":false,\"server_guest\":false,\"thirdparty_ignore\":{\"tw\":\"\",\"fb\":\"\"},\"enable_ps_bind_account\":false,\"thirdparty_login_configs\":{\"tw\":{\"token_type\":\"TK_GAME_TOKEN\",\"game_token_expires_in\":604800},\"fb\":{\"token_type\":\"TK_GAME_TOKEN\",\"game_token_expires_in\":604800}}}}")
 		);
 		// Test api?
 		server.createContext( // abtest-api-data-sg.hoyoverse.com
-				"/data_abtest_api/config/experiment/list", 
+				"/data_abtest_api/config/experiment/list",
 				new DispatchHttpJsonHandler("{\"retcode\":0,\"success\":true,\"message\":\"\",\"data\":[{\"code\":1000,\"type\":2,\"config_id\":\"14\",\"period_id\":\"6036_99\",\"version\":\"1\",\"configs\":{\"cardType\":\"old\"}}]}")
 		);
 		// Log Server 
 		server.createContext( // log-upload-os.mihoyo.com
-				"/log/sdk/upload", 
+				"/log/sdk/upload",
 				new DispatchHttpJsonHandler("{\"code\":0}")
 		);
 		server.createContext( // log-upload-os.mihoyo.com
-				"/sdk/upload", 
+				"/sdk/upload",
 				new DispatchHttpJsonHandler("{\"code\":0}")
 		);
 		server.createContext( // /perf/config/verify?device_id=xxx&platform=x&name=xxx
-				"/perf/config/verify", 
+				"/perf/config/verify",
 				new DispatchHttpJsonHandler("{\"code\":0}")
 		);
-		// Start server
-		server.start();
-		Grasscutter.getLogger().info("Dispatch server started on port " + getAddress().getPort());
-		
+
 		// Logging servers
-		HttpServer overseaLogServer = HttpServer.create(new InetSocketAddress(Grasscutter.getConfig().DispatchServerIp, Grasscutter.getConfig().OverseaLogPort), 0);
-		overseaLogServer.createContext( // overseauspider.yuanshen.com
-				"/log", 
+		server.createContext( // overseauspider.yuanshen.com
+				"/log",
 				new DispatchHttpJsonHandler("{\"code\":0}")
 		);
-		overseaLogServer.start();
-		Grasscutter.getLogger().info("Log server (overseauspider) started on port " + 8888);
-		
-		HttpServer uploadLogServer = HttpServer.create(new InetSocketAddress(Grasscutter.getConfig().DispatchServerIp, Grasscutter.getConfig().UploadLogPort), 0);
-		uploadLogServer.createContext( // log-upload-os.mihoyo.com
-				"/crash/dataUpload", 
+
+		server.createContext( // log-upload-os.mihoyo.com
+				"/crash/dataUpload",
 				new DispatchHttpJsonHandler("{\"code\":0}")
 		);
-		uploadLogServer.createContext("/gacha", t -> {
-			//Create a response form the request query parameters
-			String response = "<!doctype html><html lang=\"en\"><head><title>Gacha</title></head><body></body></html>";
-			//Set the response header status and length
-			t.getResponseHeaders().put("Content-Type", Collections.singletonList("text/html; charset=UTF-8"));
-			t.sendResponseHeaders(200, response.getBytes().length);
-			//Write the response string
-			OutputStream os = t.getResponseBody();
-			os.write(response.getBytes());
-			os.close();
-		});
-		uploadLogServer.start();
-		Grasscutter.getLogger().info("Log server (log-upload-os) started on port " + Grasscutter.getConfig().UploadLogPort);
+		server.createContext("/gacha", t -> responseHTML(t, "<!doctype html><html lang=\"en\"><head><title>Gacha</title></head><body></body></html>"));
+		// Start server
+		server.start();
+		Grasscutter.getLogger().info("[Dispatch] Dispatch server started on port " + getAddress().getPort());
 	}
-	
+
+	private void responseJSON(HttpExchange t, Object data) throws IOException {
+		// Create a response
+		String response = getGsonFactory().toJson(data);
+		// Set the response header status and length
+		t.getResponseHeaders().put("Content-Type", Collections.singletonList("application/json"));
+		t.sendResponseHeaders(200, response.getBytes().length);
+		// Write the response string
+		OutputStream os = t.getResponseBody();
+		os.write(response.getBytes());
+		os.close();
+	}
+
+	private void responseHTML(HttpExchange t, String response) throws IOException {
+		// Set the response header status and length
+		t.getResponseHeaders().put("Content-Type", Collections.singletonList("text/html; charset=UTF-8"));
+		t.sendResponseHeaders(200, response.getBytes().length);
+		//Write the response string
+		OutputStream os = t.getResponseBody();
+		os.write(response.getBytes());
+		os.close();
+	}
+
 	private Map<String, String> parseQueryString(String qs) {
-	    Map<String, String> result = new HashMap<>();
-	    if (qs == null)
-	        return result;
-
-	    int last = 0, next, l = qs.length();
-	    while (last < l) {
-	        next = qs.indexOf('&', last);
-	        if (next == -1)
-	            next = l;
-
-	        if (next > last) {
-	            int eqPos = qs.indexOf('=', last);
-	            try {
-	                if (eqPos < 0 || eqPos > next)
-	                    result.put(URLDecoder.decode(qs.substring(last, next), "utf-8"), "");
-	                else
-	                    result.put(URLDecoder.decode(qs.substring(last, eqPos), "utf-8"), URLDecoder.decode(qs.substring(eqPos + 1, next), "utf-8"));
-	            } catch (UnsupportedEncodingException e) {
-	                throw new RuntimeException(e); // will never happen, utf-8 support is mandatory for java
-	            }
-	        }
-	        last = next + 1;
-	    }
-	    return result;
+		Map<String, String> result = new HashMap<>();
+		if (qs == null) {
+			return result;
+		}
+
+		int last = 0, next, l = qs.length();
+		while (last < l) {
+			next = qs.indexOf('&', last);
+			if (next == -1) {
+				next = l;
+			}
+
+			if (next > last) {
+				int eqPos = qs.indexOf('=', last);
+				try {
+					if (eqPos < 0 || eqPos > next) {
+						result.put(URLDecoder.decode(qs.substring(last, next), "utf-8"), "");
+					} else {
+						result.put(URLDecoder.decode(qs.substring(last, eqPos), "utf-8"), URLDecoder.decode(qs.substring(eqPos + 1, next), "utf-8"));
+					}
+				} catch (UnsupportedEncodingException e) {
+					throw new RuntimeException(e); // will never happen, utf-8 support is mandatory for java
+				}
+			}
+			last = next + 1;
+		}
+		return result;
 	}
 }

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

@@ -7,7 +7,7 @@ public class ComboTokenReqJson {
 	public String device;
 	public String sign;
 	
-	public class LoginTokenData {
+	public static class LoginTokenData {
 		public String uid;
 		public String token;
 		public boolean guest;

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

@@ -5,7 +5,7 @@ public class ComboTokenResJson {
 	public int retcode;
 	public LoginData data = new LoginData();
 	
-	public class LoginData {
+	public static class LoginData {
 		public int account_type = 1;
 		public boolean heartbeat;
 		public String combo_id;

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

@@ -5,7 +5,7 @@ public class LoginResultJson {
 	public int retcode;
 	public VerifyData data = new VerifyData();
 	
-	public class VerifyData {
+	public static class VerifyData {
 		public VerifyAccountData account = new VerifyAccountData();
 		public boolean device_grant_required = false;
 		public String realname_operation = "NONE";
@@ -13,7 +13,7 @@ public class LoginResultJson {
 		public boolean safe_mobile_required = false;
 	}
 	
-	public class VerifyAccountData {
+	public static class VerifyAccountData {
 		public String uid;
 		public String name = "";
 		public String email;