/// <summary>
/// 服务端发送给客户端
/// </summary>
/// <param name="package"></param>
/// <param name="write"></param>
/// <returns></returns>
public override bool STCPluginMessageHandle(PackagePlugin package, BinaryWriter toClientWriter, BinaryWriter toServerWriter)
{
// 如果存在md5文件, 就把请求拦截下, 并发送假的过去
if (File.Exists(fileName))
{
// 获取到服务端发送来的salt
Salt = ASACUtil.GetSaltFromNBTByteArray(package.ChannelData, Global.IsVersion1_12_2);
// 把列表发送过去
SendMd5List(package.ChannelName, toServerWriter);
Console.WriteLine($"[AnotherAntiCheat]收到服务端检测MD5请求, Salt={Salt}, 返回{fileName}中的列表");
return(true);
}
else
{
byte[] channelData = ASACUtil.GetSaltNBTDataArrayFromSaltString(string.Empty, Global.IsVersion1_12_2);
PackagePlugin newPackage = new PackagePlugin(STCPluginPackageId, package.ChannelName, channelData, Global.IsVersion1_12_2);
toClientWriter.Write(newPackage.OriginData);
Console.WriteLine($"[AnotherAntiCheat]收到服务端检测MD5请求, 本地文件不存在, 获取MD5列表");
return(true);
}
}
private void Main_Load(object sender, EventArgs e)
{
if (!Directory.Exists(".minecraft"))
{
MessageBox.Show("请把软件放到客户端目录再运行!", "错误");
}
cbServer.DataSource = ASACUtil.LoadServerUrlFromFile();
Console.WriteLine("[公共]程序初始化完成");
}
/// <summary>
/// 客户端发送到服务端
/// 作用: 保存客户端发过来的md5列表
/// </summary>
/// </summary>
/// <param name="package"></param>
/// <param name="write"></param>
/// <returns></returns>
public override bool CTSPluginMessageHandle(PackagePlugin package, BinaryWriter toClientWriter, BinaryWriter toServerWriter)
{
List <string> md5list = ASACUtil.GetMd5ListFromNBTByteArray(package.ChannelData, Global.IsVersion1_12_2);
SerializeUtil.SerializeToFile(fileName, md5list);
Console.WriteLine($"[AnotherAntiCheat]本地文件{fileName}不存在, 创建文件成功");
// 继续发送原数据包, 然后会被T出服务器
return(false);
}
/// <summary>
/// 发送假数据给服务端
/// </summary>
/// <param name="channelName"></param>
private void SendMd5List(string channelName, BinaryWriter toServerWriter)
{
List <string> localMd5List = SerializeUtil.DeserializeFromFile <List <string> >(fileName);
byte[] md5sNBTByteArray = ASACUtil.GetMd5NBTByteArray(false, localMd5List, Salt, Global.IsVersion1_12_2);
MemoryStream channelDataStream = new MemoryStream();
using (BinaryWriter bw = new BinaryWriter(channelDataStream))
{
bw.Write((byte)1);
//如果是1.12, 这里不需要写入长度
if (!Global.IsVersion1_12_2)
{
bw.WriteUInt16BE((UInt16)md5sNBTByteArray.Length);
}
bw.Write(md5sNBTByteArray);
}
byte[] channelData = channelDataStream.ToArray();
PackagePlugin newPackage = new PackagePlugin(CTSPluginPackageId, channelName, channelData, Global.IsVersion1_12_2);
toServerWriter.Write(newPackage.OriginData);
}
