Merge remote-tracking branch 'origin/development' into development

README.md

@@ -110,8 +110,7 @@ There is a dummy user named "Server" in every player's friends list that you can
 | broadcast      | broadcast \<message>                               | server.broadcast          | Both side    | Sends a message to all the players.                          | b                                               |
 | coop           | coop \<playerId> \<target playerId>                 | server.coop               | Both side    | Forces someone to join the world of others.                  |                                                 |                                           
 | changescene    | changescene \<scene id>                            | player.changescene        | Client only  | Switch scenes by scene ID.                                   | scene                                           |
-| clearartifacts | clearartifacts                                    | player.clearartifacts     | Client only  | Deletes all unequipped and unlocked level 0 artifacts, including 5-star rarity ones from your inventory. | clearart                                        |
-| clearweapons   | clearweapons                                      | player.clearweapons       | Client only  | Deletes all unequipped and unlocked weapons, including 5-star rarity ones from your inventory. | clearwpns                                       |
+| clear          | clear <all\|wp\|art\|mat> [UID]                     | player.clearinv         | Client only  | Deletes all unequipped and unlocked level 0 artifacts(art)/weapons(wp)/material(all) or all, including 5-star rarity ones from your inventory. | clear                                        |
 | drop           | drop <itemID\|itemName> [amount]                  | server.drop               | Client only  | Drops an item around you.                                    | `d` `dropitem`                                  |
 | give           | give [player] <itemId\|itemName> [amount] [level] [finement] | player.give               | Both side    | Gives item(s) to you or the specified player. (finement option only weapon.)               | `g` `item` `giveitem`                           |
 | givechar       | givechar \<uid> \<avatarId>                 | player.givechar           | Both side    | Gives the player a specified character.                      | givec                                           |

README_zh-CN.md

@@ -111,8 +111,7 @@ chmod +x gradlew
 | broadcast      | broadcast <消息内容>                         | server.broadcast          | 均可使用 | 给所有玩家发送公告                         | b                                               |
 | coop           | coop \<uid> <目标uid>                 | server.coop               | 均可使用    | 强制某位玩家进入指定玩家的多人世界                  |                                                 |
 | changescene    | changescene <场景ID>                         | player.changescene        | 仅客户端 | 切换到指定场景                             | scene                                           |
-| clearartifacts | clearartifacts                               | player.clearartifacts     | 仅客户端 | 删除所有未装备及未解锁的圣遗物,包括五星    | clearart                                        |
-| clearweapons   | clearweapons                                 | player.clearweapons       | 仅客户端 | 删除所有未装备及未解锁的武器,包括五星      | clearwp                                         |
+| clear          | clear <all\|wp\|art\|mat> [UID]                     | player.clearinv     | 仅客户端 | 删除所有未装备及未解锁的圣遗物(art)或武器(wp)或材料(mat)或者所有(all),包括五星    | clear                                        |
 | drop           | drop <物品ID\|物品名称> [数量]               | server.drop               | 仅客户端 | 在指定玩家周围掉落指定物品                 | `d` `dropitem`                                  |
 | give           | give [uid] <物品ID\|物品名称> [数量] [等级] [精炼等级]  |                           |          | 给予指定玩家一定数量及等级的物品 (精炼等级仅适用于武器)        | `g` `item` `giveitem`                           |
 | givechar       | givechar \<uid> <角色ID> [等级]               | player.givechar           | 均可使用 | 给予指定玩家对应角色                       | givec                                           |

data/gacha_records.html

+<html>
+    <head>
+        <script>
+            // Debug entry
+            // record = [
+            //     {"time": 10000341, "item": 1001}, 
+            //     {"time": 10000342, "item": 1002}, 
+            //     {"time": 10000343, "item": 1003}, 
+            // ];
+            // maxPage = 5;
+
+            // in production environment
+            record = {{REPLACE_RECORD}};
+            maxPage = {{REPLACE_MAXPAGE}};
+
+            // TODO: implement this mapper by yourself
+            // I don't want to put real items' name here to avoid being DMCA'd
+            mappings = {
+                'en-us': {
+                    200: "Standard",
+                    301: "Event Avatar",
+                    302: "Event Weapon",
+                    1041 : ["M0n4", "yellow"],
+                    1032 : ["B4nn477", "purple"],
+                    1035 : ["77", "yellow"]
+                },
+                'zh-cn': {
+                        // encoding issues here, maybe we should consider load mappings remotely
+                        // will display as "锟斤铐锟斤铐锟斤铐", lmao
+                    // 200: "常驻", 
+                    // 301: "角色UP-1",
+                    // 302: "武器UP"
+                    200: "Standard",
+                    301: "Event Avatar",
+                    302: "Event Weapon",
+                }
+            };
+            mappings['default'] = mappings['en-us'];
+        </script>
+        <!-- TODO: Refine the CSS -->
+        <style>
+            a {
+                text-decoration: none !important;
+            }
+            .content {
+                width: 400px;
+                margin: auto;
+                display: flex;
+                flex-direction: column;
+                align-items: center;
+            }
+
+            .content .navbar {
+                margin: auto;
+                width: fit-content;
+                padding-top: 5px;
+                padding-bottom: 30px;
+            }
+
+            .yellow {
+                color: yellow;
+            }
+
+            .blue {
+                color: rgb(75, 107, 251);
+            }
+
+            .purple {
+                color: rgb(242, 40, 242);
+            }
+        </style>
+    </head>
+    <body style="background: skyblue;">
+        <div class="content">
+            <h1>Gacha Records</h1>
+            <h2 id="gacha-type"></h2>
+            <br/>
+            <div style="width: fit-content">
+                <table border="1">
+                    <tbody id="container">
+                        <tr>
+                            <th>Time</th>
+                            <th>Item</th>
+                        </tr>
+                    </tbody>
+                </table>
+            </div>
+            <div class="navbar">
+                <a href="" id="prev"> &lt; </a>
+                <span id="curpage">1</span>
+                <a href="" id="next"> &gt; </a>
+            </div>
+        </div>
+
+        <script>
+            var lang = new window.URLSearchParams(window.location.search).get("lang");
+            function itemMapper(itemID) {
+                if (mappings[lang] != null && mappings[lang][itemID] != null) {
+                    var entry = mappings[lang][itemID];
+                    if (entry){
+                        return "<span class='" + entry[1] + "'>" + entry[0] + "</span>";
+                    }
+                } else {
+                    if (mappings['default'][itemID] != null) {
+                        var entry = mappings['default'][itemID];
+                        if (entry){
+                            return "<span class='" + entry[1] + "'>" + entry[0] + "</span>";
+                        }
+                    }
+                }
+                return "<span class='blue'>" + itemID + "</span>";
+            }
+            function dateFormatter(timeStamp) {
+                var date = new Date(timeStamp);
+                if (lang == "en-us" || lang == null) { // MM/DD/YYYY hh:mm:ss.SSS
+                    return  String(date.getMonth()+1).padStart(2, "0") + 
+                        "/"+String(date.getDate()).padStart(2, "0")+
+                        "/"+date.getFullYear()+
+                        " "+String(date.getHours()).padStart(2, "0")+
+                        ":"+String(date.getMinutes()).padStart(2, "0")+
+                        ":"+String(date.getSeconds()).padStart(2, "0")+
+                        "."+date.getMilliseconds();
+                } else if (lang == "zh-cn") { // YYYY/MM/DD hh:mm:ss.SSS
+                    return date.getFullYear()+ 
+                        "/" + String(date.getMonth()+1).padStart(2, "0") + 
+                        "/"+String(date.getDate()).padStart(2, "0")+
+                        " "+String(date.getHours()).padStart(2, "0")+
+                        ":"+String(date.getMinutes()).padStart(2, "0")+
+                        ":"+String(date.getSeconds()).padStart(2, "0")+
+                        "."+date.getMilliseconds();
+                }
+            }
+            (function (){
+                var container = document.getElementById("container");
+                record.forEach(element => {
+                    var e = document.createElement("tr");
+                    
+                    e.innerHTML= "<td>" + dateFormatter(element.time) + "</td><td>" + itemMapper(element.item) + "</td>";
+                    container.appendChild(e);
+                });
+                // setup pagenation buttons
+                var page = parseInt(new window.URLSearchParams(window.location.search).get("p"));
+                if (!page){
+                    page = 0;
+                }
+                document.getElementById("curpage").innerText = page + 1;
+                var href = new URL(window.location);
+                href.searchParams.set("p", page - 1);
+                document.getElementById("prev").href = href.toString();
+                href.searchParams.set("p", page + 1);
+                document.getElementById("next").href = href.toString();
+
+                if (page <= 0) {
+                    document.getElementById("prev").style.display = "none";
+                }
+                if (page >= maxPage - 1) {
+                    document.getElementById("next").style.display = "none";
+                }
+
+                // setup gacha type info
+                var gachaType = new window.URLSearchParams(window.location.search).get("gachaType");
+                var gachaString;
+                if (mappings[lang] != null && mappings[lang][gachaType] != null) {
+                    gachaString = mappings[lang][gachaType];
+                }else{
+                    gachaString = mappings['default'][gachaType];
+                    if (gachaString == null) {
+                        gachaString = gachaType;
+                    }
+                }
+                document.getElementById("gacha-type").innerText = gachaString;
+        })();
+        </script>
+
+    </body>
+</html>
\ No newline at end of file

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

@@ -73,6 +73,12 @@ public final class GiveCharCommand implements CommandHandler {
             return;
         }
 
+        // Check level.
+        if (level > 90) {
+            CommandHandler.sendMessage(sender, "Invalid avatar level.");
+            return;
+        }
+
         // Calculate ascension level.
         if (level <= 40) {
             ascension = (int) Math.ceil(level / 20f);
@@ -88,6 +94,6 @@ public final class GiveCharCommand implements CommandHandler {
         avatar.recalcStats();
 
         targetPlayer.addAvatar(avatar);
-        CommandHandler.sendMessage(sender, String.format("Given %s to %s.", avatarId, target));
+        CommandHandler.sendMessage(sender, String.format("Given %s with level %s to %s.", avatarId, level, target));
     }
 }

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

@@ -28,9 +28,21 @@ public final class SetStatsCommand implements CommandHandler {
         String stat = args.get(0);
         switch (stat) {
             default:
-                CommandHandler.sendMessage(sender, "Usage: /setstats|stats <hp | def | atk | em | er | crate | cdmg> <value> for basic stats");
+                CommandHandler.sendMessage(sender, "Usage: /setstats|stats <hp | mhp | def | atk | em | er | crate | cdmg> <value> for basic stats");
                 CommandHandler.sendMessage(sender, "Usage: /stats <epyro | ecryo | ehydro | egeo | edend | eelec | ephys> <amount> for elemental bonus");
                 return;
+            case "mhp":
+                try {
+                    int health = Integer.parseInt(args.get(1));
+                    EntityAvatar entity = sender.getTeamManager().getCurrentAvatarEntity();
+                    entity.setFightProperty(FightProperty.FIGHT_PROP_MAX_HP, health);
+                    entity.getWorld().broadcastPacket(new PacketEntityFightPropUpdateNotify(entity, FightProperty.FIGHT_PROP_MAX_HP));
+                    CommandHandler.sendMessage(sender, "MAX HP set to " + health + ".");
+                } catch (NumberFormatException ignored) {
+                    CommandHandler.sendMessage(sender, "Invalid Max HP value.");
+                    return;
+                }
+                break;
             case "hp":
                 try {
                     int health = Integer.parseInt(args.get(1));

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

@@ -53,7 +53,7 @@ public final class TalentCommand implements CommandHandler {
                             CommandHandler.sendMessage(sender, "To get talent ID: /talent getid");
                             return;
                         }
-                        if (nextLevel > 16){ 
+                        if (nextLevel >= 16){ 
                             CommandHandler.sendMessage(sender, "Invalid talent level. Level should be lower than 16");
                             return;
                         }
@@ -117,7 +117,7 @@ public final class TalentCommand implements CommandHandler {
                         CommandHandler.sendMessage(sender, "To set talent level: /talent <n or e or q> <value>");
                         return;
                     }
-                    if (nextLevel > 16){
+                    if (nextLevel >= 16){
                         CommandHandler.sendMessage(sender, "Invalid talent level. Level should be lower than 16");
                         return;
                     }

src/main/java/emu/grasscutter/database/DatabaseHelper.java

@@ -3,11 +3,14 @@ package emu.grasscutter.database;
 import java.util.List;
 
 import com.mongodb.client.result.DeleteResult;
+import dev.morphia.query.FindOptions;
+import dev.morphia.query.Sort;
 import dev.morphia.query.experimental.filters.Filters;
 import emu.grasscutter.GameConstants;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.game.avatar.Avatar;
 import emu.grasscutter.game.friends.Friendship;
+import emu.grasscutter.game.gacha.GachaRecord;
 import emu.grasscutter.game.inventory.GameItem;
 import emu.grasscutter.game.player.Player;
 
@@ -78,6 +81,11 @@ public final class DatabaseHelper {
 		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("token", token)).first();
 	}
 
+	public static Account getAccountBySessionKey(String sessionKey) {
+		if(sessionKey == null) return null;
+		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("sessionKey", sessionKey)).first();
+	}
+
 	public static Account getAccountById(String uid) {
 		return DatabaseManager.getDatastore().find(Account.class).filter(Filters.eq("_id", uid)).first();
 	}
@@ -181,5 +189,36 @@ public final class DatabaseHelper {
 		)).first();
 	}
 
+	public static List<GachaRecord> getGachaRecords(int ownerId, int page, int gachaType){
+		return getGachaRecords(ownerId, page, gachaType, 10);
+	}
+
+	public static List<GachaRecord> getGachaRecords(int ownerId, int page, int gachaType, int pageSize){
+		return DatabaseManager.getDatastore().find(GachaRecord.class).filter(
+			Filters.eq("ownerId", ownerId),
+			Filters.eq("gachaType", gachaType)
+		).iterator(new FindOptions()
+				.sort(Sort.descending("transactionDate"))
+				.skip(pageSize * page)
+				.limit(pageSize)
+		).toList();
+	}
+
+	public static long getGachaRecordsMaxPage(int ownerId, int page, int gachaType){
+		return getGachaRecordsMaxPage(ownerId, page, gachaType, 10);
+	}
+
+	public static long getGachaRecordsMaxPage(int ownerId, int page, int gachaType, int pageSize){
+		long count = DatabaseManager.getDatastore().find(GachaRecord.class).filter(
+			Filters.eq("ownerId", ownerId),
+			Filters.eq("gachaType", gachaType)
+		).count();
+		return count / 10 + (count % 10 > 0 ? 1 : 0 );
+	}
+
+	public static void saveGachaRecord(GachaRecord gachaRecord){
+		DatabaseManager.getDatastore().save(gachaRecord);
+	}
+
 	public static char AWJVN = 'e';
 }

src/main/java/emu/grasscutter/database/DatabaseManager.java

@@ -16,6 +16,7 @@ import emu.grasscutter.Grasscutter.ServerRunMode;
 import emu.grasscutter.game.Account;
 import emu.grasscutter.game.avatar.Avatar;
 import emu.grasscutter.game.friends.Friendship;
+import emu.grasscutter.game.gacha.GachaRecord;
 import emu.grasscutter.game.inventory.GameItem;
 import emu.grasscutter.game.player.Player;
 
@@ -28,7 +29,7 @@ public final class DatabaseManager {
 	private static Datastore dispatchDatastore;
 	
 	private static final Class<?>[] mappedClasses = new Class<?>[] {
-		DatabaseCounter.class, Account.class, Player.class, Avatar.class, GameItem.class, Friendship.class
+		DatabaseCounter.class, Account.class, Player.class, Avatar.class, GameItem.class, Friendship.class, GachaRecord.class
 	};
     
     public static Datastore getDatastore() {

src/main/java/emu/grasscutter/game/Account.java

@@ -74,7 +74,11 @@ public class Account {
 	}
 	
 	public String getEmail() {
+		if(email != null && !email.isEmpty()) {
 			return email;
+		} else {
+			return "";
+		}
 	}
 
 	public void setEmail(String email) {

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

@@ -91,9 +91,21 @@ public class GachaBanner {
 		return eventChance;
 	}
 
+	@Deprecated
 	public GachaInfo toProto() {
-		String record = "http://" + (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? Grasscutter.getConfig().getDispatchOptions().Ip : Grasscutter.getConfig().getDispatchOptions().PublicIp) + "/gacha";
-		
+		return toProto("");
+	}
+	public GachaInfo toProto(String sessionKey) {
+		String record = "https://"
+						+ (Grasscutter.getConfig().getDispatchOptions().PublicIp.isEmpty() ? 
+							Grasscutter.getConfig().getDispatchOptions().Ip : 
+							Grasscutter.getConfig().getDispatchOptions().PublicIp)
+						+ ":"
+						+ Integer.toString(Grasscutter.getConfig().getDispatchOptions().PublicPort == 0 ?
+							Grasscutter.getConfig().getDispatchOptions().Port : 
+							Grasscutter.getConfig().getDispatchOptions().PublicPort)
+						+ "/gacha?s=" + sessionKey + "&gachaType=" + gachaType;
+		// Grasscutter.getLogger().info("record = " + record);
 		GachaInfo.Builder info = GachaInfo.newBuilder()
 				.setGachaType(this.getGachaType())
 				.setScheduleId(this.getScheduleId())

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

@@ -14,6 +14,7 @@ import com.sun.nio.file.SensitivityWatchEventModifier;
 import emu.grasscutter.Grasscutter;
 import emu.grasscutter.data.GameData;
 import emu.grasscutter.data.def.ItemData;
+import emu.grasscutter.database.DatabaseHelper;
 import emu.grasscutter.game.avatar.Avatar;
 import emu.grasscutter.game.gacha.GachaBanner.BannerType;
 import emu.grasscutter.game.inventory.GameItem;
@@ -197,6 +198,10 @@ public class GachaManager {
 				continue;
 			}
 
+			// Write gacha record
+			GachaRecord gachaRecord = new GachaRecord(itemId, player.getUid(), gachaType);
+			DatabaseHelper.saveGachaRecord(gachaRecord);
+			
 			// Create gacha item
 			GachaItem.Builder gachaItem = GachaItem.newBuilder();
 			int addStardust = 0, addStarglitter = 0;
@@ -321,6 +326,7 @@ public class GachaManager {
 		}
 	}
 	
+	@Deprecated
 	private synchronized GetGachaInfoRsp createProto() {
 		GetGachaInfoRsp.Builder proto = GetGachaInfoRsp.newBuilder().setGachaRandom(12345);
 		
@@ -331,11 +337,25 @@ public class GachaManager {
 		return proto.build();
 	}
 
+	private synchronized GetGachaInfoRsp createProto(String sessionKey) {
+		GetGachaInfoRsp.Builder proto = GetGachaInfoRsp.newBuilder().setGachaRandom(12345);
+		
+		for (GachaBanner banner : getGachaBanners().values()) {
+			proto.addGachaInfoList(banner.toProto(sessionKey));
+		}
+				
+		return proto.build();
+	}
+	
+	@Deprecated
 	public GetGachaInfoRsp toProto() {
 		if (this.cachedProto == null) {
 			this.cachedProto = createProto();
 		}
-		
 		return this.cachedProto;
 	}
+
+	public GetGachaInfoRsp toProto(String sessionKey) {
+		return createProto(sessionKey);
+	}
 }

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

+package emu.grasscutter.game.gacha;
+
+import java.util.Date;
+
+import org.bson.types.ObjectId;
+
+import dev.morphia.annotations.*;
+
+@Entity(value = "gachas", useDiscriminator = false)
+public class GachaRecord {
+    @Id private ObjectId id;
+    
+    @Indexed private int ownerId;
+
+    private Date transactionDate; 
+    private int itemID;
+    @Indexed private int gachaType;
+
+    public GachaRecord() {}
+
+    public GachaRecord(int itemId ,int ownerId, int gachaType){
+        this.transactionDate = new Date();
+        this.itemID = itemId;
+        this.ownerId = ownerId;
+        this.gachaType = gachaType;
+    }
+    
+    public int getOwnerId() {
+        return ownerId;
+    }
+
+    public void setOwnerId(int ownerId) {
+        this.ownerId = ownerId;
+    }
+
+    public int getGachaType() {
+        return gachaType;
+    }
+
+    public void setGachaType(int type) {
+        this.gachaType = type;
+    }
+
+    public Date getTransactionDate() {
+        return transactionDate;
+    }
+    
+    public void setTransactionDate(Date transactionDate) {
+        this.transactionDate = transactionDate;
+    }
+
+    public int getItemID() {
+        return itemID;
+    }
+
+    public void setItemID(int itemID) {
+        this.itemID = itemID;
+    }
+
+    public ObjectId getId(){
+        return id;
+    }
+
+    public void setId(ObjectId id) {
+        this.id = id;
+    }
+
+    public String toString() {
+        return toJsonString();
+    }
+    public String toJsonString() {
+        return "{\"time\": " + this.transactionDate.getTime() + ",\"item\":" + this.itemID + "}";
+    }
+    
+}

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

@@ -32,7 +32,7 @@ public final class DispatchHttpJsonHandler implements HttpContextHandler {
 	public void handle(Request req, Response res) throws IOException {
 		// Checking for ALL here isn't required as when ALL is enabled enableDevLogging() gets enabled
 		if(Grasscutter.getConfig().DebugMode == ServerDebugMode.MISSING && Arrays.stream(missingRoutes).anyMatch(x -> x == req.baseUrl())) {
-			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s %s request: ", req.ip(), req.method(), req.baseUrl()) + (Grasscutter.getConfig().DebugMode == ServerDebugMode.MISSING ? "(MISSING)" : ""));
+			Grasscutter.getLogger().info(String.format("[Dispatch] Client %s %s request: %s", req.ip(), req.method(), req.baseUrl()) + (Grasscutter.getConfig().DebugMode == ServerDebugMode.MISSING ? "(MISSING)" : ""));
 		}
 		res.send(response);
 	}

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

@@ -18,6 +18,7 @@ import emu.grasscutter.server.dispatch.json.*;
 import emu.grasscutter.server.dispatch.json.ComboTokenReqJson.LoginTokenData;
 import emu.grasscutter.server.event.dispatch.QueryAllRegionsEvent;
 import emu.grasscutter.server.event.dispatch.QueryCurrentRegionEvent;
+import emu.grasscutter.server.http.gacha.GachaRecordHandler;
 import emu.grasscutter.utils.FileUtils;
 import express.Express;
 import org.eclipse.jetty.server.Connector;
@@ -319,9 +320,6 @@ public final class DispatchServer {
 						responseData.data.account.uid = account.getId();
 						responseData.data.account.token = account.generateSessionKey();
 						responseData.data.account.email = account.getEmail();
-						if (responseData.data.account.email == null) {
-							responseData.data.account.email = "";
-						}
 
 						Grasscutter.getLogger()
 								.info(String.format("[Dispatch] Client %s failed to log in: Account %s created",
@@ -346,9 +344,6 @@ public final class DispatchServer {
 				responseData.data.account.uid = account.getId();
 				responseData.data.account.token = account.generateSessionKey();
 				responseData.data.account.email = account.getEmail();
-				if (responseData.data.account.email == null) {
-					responseData.data.account.email = "";
-				}
 
 				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s logged in as %s", req.ip(),
 						responseData.data.account.uid));
@@ -389,9 +384,6 @@ public final class DispatchServer {
 				responseData.data.account.uid = requestData.uid;
 				responseData.data.account.token = requestData.token;
 				responseData.data.account.email = account.getEmail();
-				if (responseData.data.account.email == null) { // null will trigger crash in some client
-					responseData.data.account.email = "";
-				}
 
 				Grasscutter.getLogger().info(String.format("[Dispatch] Client %s logged in via token as %s",
 						req.ip(), responseData.data.account.uid));
@@ -494,7 +486,7 @@ public final class DispatchServer {
 		// webstatic-sea.hoyoverse.com
 		httpServer.get("/admin/mi18n/plat_oversea/m202003048/m202003048-version.json", new DispatchHttpJsonHandler("{\"version\":51}"));
 
-		httpServer.get("/gacha", (req, res) -> res.send("<!doctype html><html lang=\"en\"><head><title>Gacha</title></head><body></body></html>"));
+		httpServer.get("/gacha", new GachaRecordHandler());
 
 		httpServer.listen(Grasscutter.getConfig().getDispatchOptions().Port);
 		Grasscutter.getLogger().info("[Dispatch] Dispatch server started on port " + httpServer.raw().port());

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

@@ -16,7 +16,7 @@ public class LoginResultJson {
 	public static class VerifyAccountData {
 		public String uid;
 		public String name = "";
-		public String email;
+		public String email = "";
 		public String mobile = "";
 		public String is_email_verify = "0";
 		public String realname = "";

src/main/java/emu/grasscutter/server/game/GameServerPacketHandler.java

@@ -23,21 +23,15 @@ public class GameServerPacketHandler {
 		this.registerHandlers(handlerClass);
 	}
 
-	public void registerHandlers(Class<? extends PacketHandler> handlerClass) {
-		Reflections reflections = new Reflections("emu.grasscutter.server.packet");
-		Set<?> handlerClasses = reflections.getSubTypesOf(handlerClass);
-		
-		for (Object obj : handlerClasses) {
-			Class<?> c = (Class<?>) obj;
-			
+	public void registerPacketHandler(Class<? extends PacketHandler> handlerClass) {
 		try {
-				Opcodes opcode = c.getAnnotation(Opcodes.class);
+			Opcodes opcode = handlerClass.getAnnotation(Opcodes.class);
 
 			if (opcode == null || opcode.disabled() || opcode.value() <= 0) {
-					continue;
+				return;
 			}
 
-				PacketHandler packetHandler = (PacketHandler) c.newInstance();
+			PacketHandler packetHandler = (PacketHandler) handlerClass.newInstance();
 
 			this.handlers.put(opcode.value(), packetHandler);
 		} catch (Exception e) {
@@ -45,6 +39,14 @@ public class GameServerPacketHandler {
 		}
 	}
 
+	public void registerHandlers(Class<? extends PacketHandler> handlerClass) {
+		Reflections reflections = new Reflections("emu.grasscutter.server.packet");
+		Set<?> handlerClasses = reflections.getSubTypesOf(handlerClass);
+		
+		for (Object obj : handlerClasses) {
+			this.registerPacketHandler((Class<? extends PacketHandler>) obj);
+		}
+		
 		// Debug
 		Grasscutter.getLogger().info("Registered " + this.handlers.size() + " " + handlerClass.getSimpleName() + "s");
 	}

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

+package emu.grasscutter.server.http.gacha;
+
+import java.io.File;
+import java.io.IOException;
+
+import emu.grasscutter.Grasscutter;
+import emu.grasscutter.database.DatabaseHelper;
+import emu.grasscutter.game.Account;
+import emu.grasscutter.utils.FileUtils;
+import express.http.HttpContextHandler;
+import express.http.Request;
+import express.http.Response;
+
+public final class GachaRecordHandler implements HttpContextHandler {
+	String render_template;
+	public GachaRecordHandler() {
+		File template = new File(Grasscutter.getConfig().DATA_FOLDER + "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.valueOf(req.query("p"));
+		}
+
+		if (req.query("gachaType") != null) {
+			gachaType = Integer.valueOf(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("404");
+		}
+	}
+}

src/main/java/emu/grasscutter/server/packet/recv/HandlerBuyGoodsReq.java

@@ -54,7 +54,7 @@ public class HandlerBuyGoodsReq extends PacketHandler {
                 session.getPlayer().save();
             }
 
-            if (bought + buyGoodsReq.getBoughtNum() > sg.getBuyLimit()) {
+            if ((bought + buyGoodsReq.getBoughtNum() > sg.getBuyLimit()) && sg.getBuyLimit() != 0) {
                 return;
             }
 

src/main/java/emu/grasscutter/server/packet/recv/HandlerGetGachaInfoReq.java

@@ -11,7 +11,10 @@ public class HandlerGetGachaInfoReq extends PacketHandler {
 	
 	@Override
 	public void handle(GameSession session, byte[] header, byte[] payload) throws Exception {
-		session.send(new PacketGetGachaInfoRsp(session.getServer().getGachaManager()));
+		session.send(new PacketGetGachaInfoRsp(session.getServer().getGachaManager(),
+					// TODO: use other Nonce/key insteadof session key to ensure the overall security for the player
+					session.getPlayer().getAccount().getSessionKey())
+					);
 	}
 
 }

src/main/java/emu/grasscutter/server/packet/recv/HandlerMcoinExchangeHcoinReq.java

@@ -4,6 +4,7 @@ import emu.grasscutter.net.packet.Opcodes;
 import emu.grasscutter.net.packet.PacketHandler;
 import emu.grasscutter.net.packet.PacketOpcodes;
 import emu.grasscutter.net.proto.McoinExchangeHcoinReqOuterClass;
+import emu.grasscutter.net.proto.RetcodeOuterClass;
 import emu.grasscutter.server.game.GameSession;
 import emu.grasscutter.server.packet.send.PacketMcoinExchangeHcoinRsp;
 
@@ -15,13 +16,13 @@ public class HandlerMcoinExchangeHcoinReq extends PacketHandler {
         McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq exchangeReq = McoinExchangeHcoinReqOuterClass.McoinExchangeHcoinReq.parseFrom(payload);
         
         if (session.getPlayer().getCrystals() < exchangeReq.getMCoinNum() && exchangeReq.getMCoinNum() == exchangeReq.getHCoinNum()) {
+            session.send(new PacketMcoinExchangeHcoinRsp(RetcodeOuterClass.Retcode.RET_UNKNOWN_ERROR_VALUE));
             return;
         }
         
         session.getPlayer().setCrystals(session.getPlayer().getCrystals() - exchangeReq.getMCoinNum());
         session.getPlayer().setPrimogems(session.getPlayer().getPrimogems() + exchangeReq.getHCoinNum());
         session.getPlayer().save();
-        
-        session.send(new PacketMcoinExchangeHcoinRsp(session.getPlayer().getCrystals(), session.getPlayer().getPrimogems()));
+        session.send(new PacketMcoinExchangeHcoinRsp(RetcodeOuterClass.Retcode.RET_SUCC_VALUE));
     }
 }