nbt 90%

src/data/mod.rs

@@ -1,4 +1,4 @@
-use std::io::{Read, Write};
+use std::io::{Cursor, Read, Write};
 
 use flate2::{read::ZlibDecoder, write::ZlibEncoder, Compression};
 
@@ -24,8 +24,11 @@ pub enum DataError {
 	SerializationError,
 	DeSerializationError,
 	ZlibError,
+	NBTError,
 }
 
+type Buffer = Cursor<Vec<u8>>;
+
 pub fn decompress(bytes: &[u8]) -> Result<Vec<u8>, DataError> {
 	let mut decoder = ZlibDecoder::new(bytes);
 	let mut output = Vec::new();

src/data/nbt.rs

@@ -1,5 +1,7 @@
 use std::io::Cursor;
 
+use super::{DataError, Reader};
+
 
 
 
@@ -17,7 +19,7 @@ const TAG_COMPOUND:   u8 = 10;
 const TAG_INT_ARRAY:  u8 = 11;
 const TAG_LONG_ARRAY: u8 = 12;
 
-enum TAG {
+pub enum TAG {
 	END,
 	COMPOUND(Vec<NBT>),
 	STRING(String),
@@ -27,10 +29,10 @@ enum TAG {
 	LONG(i64),
 	FLOAT(f32),
 	DOUBLE(f64),
-	// LIST
+	LIST(Vec<NBT>),
-	// BYTE_ARRAY
+	BYTE_ARRAY(Vec<i8>),
-	// INT_ARRAY
+	INT_ARRAY(Vec<i32>),
-	// LONG_ARRAY
+	LONG_ARRAY(Vec<i64>),
 }
 
 struct NBT {
@@ -39,15 +41,82 @@ struct NBT {
 }
 
 impl NBT {
-	fn new(key: String, value: TAG) -> Self {
+	fn new(key: &str, value: TAG) -> Self {
-		Self { key, value }
+		Self { key: key.to_string(), value }
 	}
 }
 
 pub trait NBT_Reader {
-
+	fn read_nbt(&mut self, root: bool, inet: bool, byte: Option<u8>) -> Result<NBT, DataError>;
 }
 
-impl NBT_Reader for Cursor<Vec<u8>> {
+impl NBT_Reader for dyn Reader {
+	fn read_nbt(&mut self, root: bool, inet: bool, byte: Option<u8>) -> Result<NBT, DataError> {
+		let mut byte = match byte { Some(v) => v, None => self.read_byte()? };
+		let key: String;
 
+		if root & inet {
+			key = "".to_string();
+			if byte != TAG_COMPOUND {
+				return Err(DataError::NBTError);
+			}
+		} else {
+			let size = self.read_short()? as usize;
+			let buf = self.read_bytes(size)?;
+			key = String::from_utf8_lossy(&buf).to_string();
+		}
+
+		match byte {
+			TAG_BYTE => { Ok(NBT::new(&key, TAG::BYTE(self.read_signed_byte()?))) },
+			TAG_SHORT => { Ok(NBT::new(&key, TAG::SHORT(self.read_signed_short()?))) },
+			TAG_INT => { Ok(NBT::new(&key, TAG::INT(self.read_signed_int()?))) },
+			TAG_LONG => { Ok(NBT::new(&key, TAG::LONG(self.read_signed_long()?))) },
+			TAG_FLOAT => { Ok(NBT::new(&key, TAG::FLOAT(self.read_float()?))) },
+			TAG_DOUBLE => { Ok(NBT::new(&key, TAG::DOUBLE(self.read_double()?))) },
+
+			TAG_STRING => {
+				let size = self.read_short()? as usize;
+				let buf = self.read_bytes(size)?;
+				Ok(NBT::new(&key, TAG::STRING(String::from_utf8_lossy(&buf).to_string())))
+			},
+
+			TAG_BYTE_ARRAY => {
+				let size = self.read_signed_int()? as usize;
+				let buf =  self.read_bytes(size)?.into_iter().map(|x| x as i8).collect();
+				Ok(NBT::new(&key, TAG::BYTE_ARRAY(buf)))
+			},
+
+			TAG_INT_ARRAY => {
+				let count = self.read_signed_int()? as usize;
+				let mut buf: Vec<i32> = Vec::with_capacity(count);
+				for _ in 0..count {
+					buf.push(self.read_signed_int()?);
+				}
+				Ok(NBT::new(&key, TAG::INT_ARRAY(buf)))
+			},
+
+			TAG_LONG_ARRAY => {
+				let count = self.read_signed_int()? as usize;
+				let mut buf: Vec<i64> = Vec::with_capacity(count);
+				for _ in 0..count {
+					buf.push(self.read_signed_long()?);
+				}
+				Ok(NBT::new(&key, TAG::LONG_ARRAY(buf)))
+			},
+
+			TAG_LIST => {
+				byte = self.read_byte()?;
+				let mut buf: Vec<NBT> = Vec::new();
+				let count = self.read_signed_int()? as usize;
+				for _ in 0..count {
+					buf.push(self.read_nbt(false, inet, Some(byte))?);
+				}
+				Ok(NBT::new(&key, TAG::LIST(buf)))
+			}
+
+
+			_ => Err(DataError::NBTError)
+		}
+
+	}
 }

src/data/reader.rs

@@ -1,10 +1,10 @@
 use std::io::{Cursor, Read};
 
-use super::{decompress, DataError, Packet};
+use super::{decompress, Buffer, DataError, Packet};
 
 
 
-impl<R: Read> Reader for R {
+impl Reader for Buffer {
 	fn read_bytes(&mut self, size: usize) -> Result<Vec<u8>, DataError> {
 		let mut buf = vec![0; size];
 		match self.read_exact(&mut buf) {
@@ -71,10 +71,10 @@ pub trait Reader {
 		Ok(self.read_short()? as i16)
 	}
 
-	fn read_string(&mut self) -> Result<String, DataError> {
+	fn read_signed_int(&mut self) -> Result<i32, DataError> {
-		let size = self.read_varint()?;
+		Ok(i32::from_be_bytes(
-		let vec = self.read_bytes(size as usize)?;
+			self.read_bytes(4)?.try_into().unwrap()
-		String::from_utf8(vec).or( Err(DataError::StringDecodeError))
+		))
 	}
 
 	fn read_long(&mut self) -> Result<u64, DataError> {
@@ -87,6 +87,24 @@ pub trait Reader {
 		Ok(self.read_long()? as i64)
 	}
 
+	fn read_float(&mut self) -> Result<f32, DataError> {
+		Ok(f32::from_be_bytes(
+			self.read_bytes(4)?.try_into().unwrap()
+		))
+	}
+
+	fn read_double(&mut self) -> Result<f64, DataError> {
+		Ok(f64::from_be_bytes(
+			self.read_bytes(8)?.try_into().unwrap()
+		))
+	}
+
+	fn read_string(&mut self) -> Result<String, DataError> {
+		let size = self.read_varint()?;
+		let vec = self.read_bytes(size as usize)?;
+		String::from_utf8(vec).or( Err(DataError::StringDecodeError))
+	}
+
 	fn read_uuid(&mut self) -> Result<u128, DataError> {
 		Ok(u128::from_be_bytes(
 			self.read_bytes(16)?.try_into().unwrap()

src/main.rs

@@ -9,16 +9,14 @@ mod cycle;
 
 #[tokio::main]
 async fn main() {
-	// let Ok(server) = Server::new("127.0.0.1:25565").await else {
+	let Ok(server) = Server::new("127.0.0.1:25565").await else {
-	// 	println!("Не удалось забиндить сервер");
+		println!("Не удалось забиндить сервер");
-	// 	return;
+		return;
-	// };
+	};
 
-	// loop {
+	loop {
-	// 	let stream = server.accept().await;
+		let stream = server.accept().await;
-	// 	tokio::spawn(cycle::main(stream));
+		tokio::spawn(cycle::main(stream));
-	// }
+	}
-
-	
 }