Utils
Richtext.cs
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
namespace QQ.Framework.Utils
{
public clast Richtext
{
public List Snippets = new List();
public int Length => Snippets.Sum(s => s.Length);
public static Richtext Parse(BinaryReader reader)
{
var result = new Richtext();
// TODO: 解析富文本
try
{
var messageType = reader.ReadByte();
var dataLength = reader.BeReadUInt16();
var pos = reader.BaseStream.Position;
while (pos + dataLength < reader.BaseStream.Length)
{
reader.ReadByte();
switch (messageType)
{
case 0x01: // 纯文本消息、@
{
var messageStr = reader.BeReadString();
if (messageStr.StartsWith("@") && pos + dataLength - reader.BaseStream.Position == 16)
{
reader.ReadBytes(10);
result.Snippets.Add(new TextSnippet(messageStr, MessageType.At,
("Target", reader.BeReadLong32())));
}
else
{
result.Snippets.Add(messageStr);
}
break;
}
case 0x02: // Emoji(系统表情)
{
reader.BeReadUInt16(); // 这里的数字貌似总是1：系统表情只有208个。
result.Snippets.Add(new TextSnippet("", MessageType.Emoji, ("Type", reader.ReadByte())));
break;
}
case 0x03: // 图片
{
result.Snippets.Add(new TextSnippet(reader.BeReadString(), MessageType.Picture));
break;
}
case 0x0A: // 音频
{
result.Snippets.Add(new TextSnippet(reader.BeReadString(), MessageType.Audio));
break;
}
case 0x0E: // 未知
{
break;
}
case 0x12: // 群名片
{
break;
}
case 0x14: // XML
{
reader.ReadByte();
result.Snippets.Add(new TextSnippet(
GZipByteArray.DecompressString(reader.ReadBytes((int) (reader.BaseStream.Length - 1))),
MessageType.Xml));
break;
}
case 0x18: // 群文件
{
reader.ReadBytes(5);
var fileName = reader.BeReadString(); // 文件名称... 长度总是一个byte
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // 文件大小
result.Snippets.Add(new TextSnippet(fileName, MessageType.OfflineFile));
break;
}
case 0x19: // 红包秘钥段
{
if (reader.ReadByte() != 0xC2)
{
break;
}
reader.ReadBytes(19);
reader.ReadBytes(reader.ReadByte()); // 恭喜发财
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // 赶紧点击拆开吧
reader.ReadByte();
reader.ReadBytes(reader.ReadByte()); // QQ红包
reader.ReadBytes(5);
reader.ReadBytes(reader.ReadByte()); // [QQ红包]恭喜发财
reader.ReadBytes(22);
var redId = Encoding.UTF8.GetString(reader.ReadBytes(32)); //redid
reader.ReadBytes(12);
reader.ReadBytes(reader.BeReadUInt16());
reader.ReadBytes(0x10);
var key1 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key1
reader.BeReadUInt16();
var key2 = Encoding.UTF8.GetString(reader.ReadBytes(reader.ReadByte())); //Key2
result.Snippets.Add(new TextSnippet("", MessageType.RedBag, ("RedId", redId),
("Key1", key1), ("Key2", key2)));
break;
}
}
reader.ReadBytes((int) (pos + dataLength - reader.BaseStream.Position));
messageType = reader.ReadByte();
dataLength = reader.BeReadUInt16();
pos = reader.BaseStream.Position;
}
}
catch (Exception ex)
{
}
// 移除所有空白的片段
result.Snippets.RemoveAll(s => s.Type == MessageType.Normal && string.IsNullOrEmpty(s.Content));
// 若长度大于1，那么应该只含有普通文本、At、表情、图片。
// 虽然我看着别人好像视频也能通过转发什么的弄进来，但是反正我们现在不支持接收音视频，所以不管了
return result.Snippets.Count > 1 && result.Snippets.Any(s =>
s.Type != MessageType.Normal && s.Type != MessageType.At &&
s.Type != MessageType.Emoji && s.Type != MessageType.Picture)
? throw new NotSupportedException("富文本中包含多个非聊天代码")
: result;
}
public static Richtext FromLiteral(string message)
{
return new Richtext
{
Snippets = new List
{
new TextSnippet(message ?? "")
}
};
}
public static Richtext FromSnippets(params TextSnippet[] message)
{
return new Richtext
{
Snippets = message.ToList()
};
}
public override string ToString()
{
return string.Join("", Snippets);
}
public static implicit operator string(Richtext text)
{
return text?.ToString();
}
public static implicit operator Richtext(string text)
{
return FromLiteral(text);
}
public static implicit operator Richtext(TextSnippet text)
{
return FromSnippets(text);
}
}
public clast TextSnippet
{
public string Content;
public MessageType Type;
private readonly Dictionary _data = new Dictionary();
public object this[string key]
{
get => Get(key);
set => Set(key, value);
}
public T Get(string name, T value = default(T))
{
if (_data.ContainsKey(name))
{
return (T) _data[name];
}
return value;
}
public void Set(string name, T value)
{
_data[name] = value;
}
public TextSnippet(string message = "", MessageType type = MessageType.Normal,
params (string name, object value)[] data)
{
Content = message;
Type = type;
foreach (var valueTuple in data)
{
Set(valueTuple.name, valueTuple.value);
}
}
public int Length
{
get
{
switch (Type)
{
case MessageType.Normal:
return Encoding.UTF8.GetByteCount(Content);
case MessageType.Emoji:
return 12;
case MessageType.Picture:
case MessageType.Xml:
case MessageType.Json:
case MessageType.At:
case MessageType.Shake:
case MessageType.ExitGroup:
case MessageType.GetGroupImformation:
case MessageType.AddGroup:
case MessageType.RedBag:
case MessageType.Audio:
case MessageType.Video:
case MessageType.OfflineFile:
case MessageType.Mute:
return 0;
default:
throw new ArgumentOutOfRangeException();
}
}
}
public override string ToString()
{
switch (Type)
{
case MessageType.Normal:
return Content;
case MessageType.Shake:
return "[窗口抖动]";
case MessageType.Picture:
return $"[图片:{Content}]";
case MessageType.Xml:
return $"[XML代码:{Content}]";
case MessageType.Json:
return $"[JSON代码:{Content}]";
case MessageType.Emoji:
return $"[表情:{this["Type"]}]";
case MessageType.At:
return $"[@{this["Target"]}]";
case MessageType.Audio:
return $"[音频:{Content}]";
case MessageType.Video:
return $"[视频:{Content}]";
case MessageType.ExitGroup:
return "[退出群]";
case MessageType.GetGroupImformation:
return "[获取群信息]";
case MessageType.AddGroup:
return "[加群]";
case MessageType.OfflineFile:
return $"[离线文件:{Content}]";
case MessageType.RedBag:
return "[红包]";
case MessageType.Mute when (long) this["Time"] > 0:
return $"[禁言:{this["Muter"]}=>{this["Victim"]}({this["Time"]})]";
case MessageType.Mute:
return $"[解除禁言:{this["Muter"]}=>{this["Victim"]}]";
default:
return "[特殊代码]";
}
}
public static implicit operator string(TextSnippet text)
{
return text?.ToString();
}
public static implicit operator TextSnippet(string text)
{
return new TextSnippet(text);
}
}
}