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using System.Collections.Generic;
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using Newtonsoft.Json.Linq;
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namespace BarrageGrab.Modles.BiliProtoEntity
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{
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/// <summary>
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/// B站直播弹幕WS协议操作码
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/// </summary>
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public enum BiliOperation
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{
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/// <summary>客户端心跳</summary>
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HEARTBEAT = 2,
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/// <summary>服务器心跳回复 (人气值)</summary>
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HEARTBEAT_REPLY = 3,
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/// <summary>普通消息 (弹幕/礼物/进房等)</summary>
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MESSAGE = 5,
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/// <summary>客户端认证请求</summary>
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AUTH = 7,
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/// <summary>服务器认证回复</summary>
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AUTH_REPLY = 8
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}
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/// <summary>
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/// B站WS协议版本 (影响Payload压缩方式)
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/// </summary>
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public enum BiliProtocolVersion
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{
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/// <summary>JSON明文</summary>
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PLAIN = 0,
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/// <summary>认证用JSON</summary>
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PLAIN_AUTH = 1,
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/// <summary>Zlib压缩 (内部可能含多个包)</summary>
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ZLIB = 2,
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/// <summary>Brotli压缩 (内部可能含多个包)</summary>
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BROTLI = 3
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}
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/// <summary>
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/// B站WS协议帧头 (16字节, Big-Endian)
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/// </summary>
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public struct BiliSocketFrame
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{
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/// <summary>整个包长度 (header+body)</summary>
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public uint PacketLength;
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/// <summary>头长度 (固定16)</summary>
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public ushort HeaderLength;
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/// <summary>协议版本</summary>
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public BiliProtocolVersion ProtocolVersion;
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/// <summary>操作码</summary>
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public BiliOperation Operation;
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/// <summary>序列号 (固定1)</summary>
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public uint SequenceId;
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public const int HEADER_SIZE = 16;
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/// <summary>从字节缓冲区解析帧头</summary>
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public static bool TryParse(byte[] buffer, int offset, int count, out BiliSocketFrame frame)
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{
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frame = default(BiliSocketFrame);
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if (buffer == null || count < HEADER_SIZE) return false;
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// Big-Endian 解析
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frame.PacketLength = ReadUInt32BE(buffer, offset);
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frame.HeaderLength = ReadUInt16BE(buffer, offset + 4);
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frame.ProtocolVersion = (BiliProtocolVersion)ReadUInt16BE(buffer, offset + 6);
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frame.Operation = (BiliOperation)ReadUInt32BE(buffer, offset + 8);
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frame.SequenceId = ReadUInt32BE(buffer, offset + 12);
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return frame.HeaderLength >= HEADER_SIZE && frame.PacketLength >= HEADER_SIZE;
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}
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/// <summary>帧体数据 (从 HeaderLength 开始到 PacketLength)</summary>
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public static byte[] GetPayload(byte[] buffer, int offset, BiliSocketFrame frame)
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{
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int bodyLen = (int)frame.PacketLength - frame.HeaderLength;
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if (bodyLen <= 0) return new byte[0];
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var data = new byte[bodyLen];
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System.Array.Copy(buffer, offset + frame.HeaderLength, data, 0, bodyLen);
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return data;
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}
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public static uint ReadUInt32BE(byte[] buf, int off)
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{
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return (uint)((buf[off] << 24) | (buf[off + 1] << 16) | (buf[off + 2] << 8) | buf[off + 3]);
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}
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public static ushort ReadUInt16BE(byte[] buf, int off)
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{
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return (ushort)((buf[off] << 8) | buf[off + 1]);
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}
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}
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/// <summary>
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/// B站弹幕消息 (cmd字段用于路由)
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/// </summary>
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public class BiliMessage
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{
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/// <summary>消息类型 (DANMU_MSG / SEND_GIFT / INTERACT_WORD 等)</summary>
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public string Cmd { get; set; }
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/// <summary>原始数据</summary>
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public JObject Raw { get; set; }
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}
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/// <summary>
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/// B站弹幕消息 cmd 列表 (用于识别已知类型)
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/// </summary>
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public static class BiliCmd
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{
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public const string DANMU_MSG = "DANMU_MSG";
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public const string SEND_GIFT = "SEND_GIFT";
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public const string INTERACT_WORD = "INTERACT_WORD";
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public const string LIKE_INFO_V3_CLICK = "LIKE_INFO_V3_CLICK";
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public const string ONLINE_RANK_COUNT = "ONLINE_RANK_COUNT";
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public const string WATCHED_CHANGE = "WATCHED_CHANGE";
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public const string LIVE = "LIVE";
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public const string PREPARING = "PREPARING";
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public const string ROOM_REAL_TIME_MESSAGE_UPDATE = "ROOM_REAL_TIME_MESSAGE_UPDATE";
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public const string SUPER_CHAT_MESSAGE = "SUPER_CHAT_MESSAGE";
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}
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/// <summary>
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/// B站弹幕消息(DANMU_MSG)简化结构
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/// </summary>
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public class BiliDanmuMsg
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{
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/// <summary>弹幕内容 (info[1])</summary>
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public string Content { get; set; }
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/// <summary>用户UID (info[2][0])</summary>
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public long Uid { get; set; }
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/// <summary>用户昵称 (info[2][1])</summary>
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public string Uname { get; set; }
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/// <summary>管理员? (info[2][2]==1)</summary>
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public bool IsAdmin { get; set; }
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/// <summary>主播? (info[2][4]存在)</summary>
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public bool IsAnchor { get; set; }
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}
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/// <summary>
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/// B站礼物消息(SEND_GIFT.data)简化结构
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/// </summary>
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public class BiliGiftData
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{
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public long Uid { get; set; }
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public string Uname { get; set; }
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public string Face { get; set; }
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public uint GiftId { get; set; }
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public string GiftName { get; set; }
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/// <summary>礼物数量</summary>
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public uint Num { get; set; }
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/// <summary>本批次礼物数 (连击时为本次增量)</summary>
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public uint ComboNum { get; set; }
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/// <summary>礼物连击总数</summary>
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public uint SuperBatchNum { get; set; }
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/// <summary>价格 (1 = 1000金瓜子)</summary>
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public long Price { get; set; }
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/// <summary>金币类型 gold=付费 silver=免费</summary>
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public string CoinType { get; set; }
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/// <summary>礼物图片</summary>
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public string GifUrl { get; set; }
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}
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/// <summary>
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/// B站进房/关注消息(INTERACT_WORD.data)简化结构
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/// </summary>
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public class BiliInteractData
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{
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public long Uid { get; set; }
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public string Uname { get; set; }
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/// <summary>1=进入 2=关注 3=分享</summary>
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public int MsgType { get; set; }
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}
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/// <summary>
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/// B站点赞消息(LIKE_INFO_V3_CLICK.data)简化结构
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/// </summary>
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public class BiliLikeData
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{
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public long Uid { get; set; }
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public string Uname { get; set; }
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public string LikeText { get; set; }
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}
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/// <summary>
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/// B站房间统计(ONLINE_RANK_COUNT.data / ROOM_REAL_TIME_MESSAGE_UPDATE.data)简化结构
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/// </summary>
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public class BiliRoomStats
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{
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/// <summary>在线人数</summary>
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public long Online { get; set; }
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/// <summary>看过人数</summary>
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public long Watched { get; set; }
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}
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}
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