mirror of
https://github.com/G2-Games/minecraft_alpha_server.git
synced 2025-04-18 14:52:57 -05:00
Initial commit
This commit is contained in:
commit
d4bee28781
6 changed files with 589 additions and 0 deletions
1
.gitignore
vendored
Normal file
1
.gitignore
vendored
Normal file
|
|
@ -0,0 +1 @@
|
|||
/target
|
||||
330
Cargo.lock
generated
Normal file
330
Cargo.lock
generated
Normal file
|
|
@ -0,0 +1,330 @@
|
|||
# This file is automatically @generated by Cargo.
|
||||
# It is not intended for manual editing.
|
||||
version = 3
|
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|
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|
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"colorchoice",
|
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|
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|
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|
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|
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|
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|
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|
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|
||||
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|
||||
|
||||
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|
||||
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||||
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|
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|
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||||
|
||||
[[package]]
|
||||
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||||
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"windows_i686_msvc 0.48.5",
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"windows_x86_64_gnu 0.48.5",
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"windows_x86_64_gnullvm 0.48.5",
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"windows_x86_64_msvc 0.48.5",
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[[package]]
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"windows_i686_gnullvm",
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"windows_x86_64_gnu 0.52.6",
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"windows_x86_64_gnullvm 0.52.6",
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"windows_x86_64_msvc 0.52.6",
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[[package]]
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[[package]]
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name = "windows_x86_64_gnullvm"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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checksum = "24d5b23dc417412679681396f2b49f3de8c1473deb516bd34410872eff51ed0d"
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||||
|
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[[package]]
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name = "windows_x86_64_msvc"
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version = "0.48.5"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "ed94fce61571a4006852b7389a063ab983c02eb1bb37b47f8272ce92d06d9538"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
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version = "0.52.6"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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||||
checksum = "589f6da84c646204747d1270a2a5661ea66ed1cced2631d546fdfb155959f9ec"
|
||||
9
Cargo.toml
Normal file
9
Cargo.toml
Normal file
|
|
@ -0,0 +1,9 @@
|
|||
[package]
|
||||
name = "minecraft_server_impl"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
[dependencies]
|
||||
byteorder = "1.5.0"
|
||||
colog = "1.3.0"
|
||||
log = "0.4.22"
|
||||
150
src/main.rs
Normal file
150
src/main.rs
Normal file
|
|
@ -0,0 +1,150 @@
|
|||
mod utils;
|
||||
mod to_bytes;
|
||||
|
||||
use std::{io::{self, Write}, net::{TcpListener, TcpStream}};
|
||||
|
||||
use log::{info, warn};
|
||||
use byteorder::{ReadBytesExt, WriteBytesExt, BE};
|
||||
use to_bytes::ToBytes;
|
||||
use utils::{MCString, ReadMCString, WriteMCString};
|
||||
|
||||
|
||||
fn main() {
|
||||
colog::default_builder()
|
||||
.filter_level(log::LevelFilter::Debug)
|
||||
.init();
|
||||
|
||||
let listener = TcpListener::bind("0.0.0.0:25565").unwrap();
|
||||
|
||||
for mut connection in listener.incoming().filter_map(|c| c.ok()) {
|
||||
info!("Connected to client @ {}", connection.peer_addr().unwrap());
|
||||
while let Some(cmd) = connection.read_u8().ok() {
|
||||
let command = Command::try_from(cmd);
|
||||
info!("COMMAND: {command:?}");
|
||||
handle_command(&mut connection, command.unwrap()).unwrap();
|
||||
|
||||
}
|
||||
warn!("Lost connection to client");
|
||||
}
|
||||
}
|
||||
|
||||
fn handle_command(connection: &mut TcpStream, command: Command) -> Result<(), io::Error> {
|
||||
match command {
|
||||
Command::KeepAlive => todo!(),
|
||||
Command::Handshake => {
|
||||
let username = connection.read_mcstring()?;
|
||||
info!("Handshake: {username}");
|
||||
|
||||
connection.write_u8(0x02)?;
|
||||
connection.write_mcstring(&MCString::try_from("-").unwrap())?;
|
||||
},
|
||||
Command::Login => {
|
||||
info!("---");
|
||||
info!("Initiating login");
|
||||
let protocol_version = connection.read_u32::<BE>()?;
|
||||
let username = connection.read_mcstring()?;
|
||||
let _password = connection.read_mcstring()?;
|
||||
let _map_seed = connection.read_i64::<BE>()?;
|
||||
let _dimension = connection.read_i8()?;
|
||||
|
||||
info!("Protocol Version: {protocol_version}");
|
||||
info!("Username: {username}");
|
||||
|
||||
let login_packet = ServerLoginPacket {
|
||||
entity_id: 1,
|
||||
unknown1: MCString::default(),
|
||||
unknown2: MCString::default(),
|
||||
map_seed: 1715505462032542147,
|
||||
dimension: 0,
|
||||
};
|
||||
login_packet.write_into(connection)?;
|
||||
|
||||
info!("Responded to auth request");
|
||||
|
||||
let prechunk = PreChunk {
|
||||
x_coord: 0,
|
||||
z_coord: 0,
|
||||
mode: true,
|
||||
};
|
||||
|
||||
connection.write_u8(Command::PreChunk as u8)?;
|
||||
connection.write_all(&prechunk.to_bytes())?;
|
||||
},
|
||||
_ => unimplemented!("This command is probably `Server -> Client` only")
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
enum Command {
|
||||
KeepAlive = 0x00,
|
||||
Login = 0x01,
|
||||
Handshake = 0x02,
|
||||
PreChunk = 0x32,
|
||||
ChunkData = 0x33,
|
||||
Kick = 0xFF,
|
||||
}
|
||||
|
||||
#[derive(Debug, Clone, Copy)]
|
||||
struct CommandError {
|
||||
_id: u8,
|
||||
}
|
||||
|
||||
impl TryFrom<u8> for Command {
|
||||
type Error = CommandError;
|
||||
|
||||
fn try_from(value: u8) -> Result<Self, Self::Error> {
|
||||
Ok(match value {
|
||||
0x00 => Self::KeepAlive,
|
||||
0x01 => Self::Login,
|
||||
0x02 => Self::Handshake,
|
||||
0x32 => Self::PreChunk,
|
||||
0x33 => Self::ChunkData,
|
||||
0xFF => Self::Kick,
|
||||
v => return Err(CommandError{
|
||||
_id: v,
|
||||
}),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
struct ServerLoginPacket {
|
||||
entity_id: i32,
|
||||
unknown1: MCString,
|
||||
unknown2: MCString,
|
||||
map_seed: i64,
|
||||
dimension: i8,
|
||||
}
|
||||
|
||||
impl ServerLoginPacket {
|
||||
fn write_into<W: Write>(&self, stream: &mut W) -> Result<(), io::Error> {
|
||||
stream.write_i32::<BE>(self.entity_id)?;
|
||||
stream.write_mcstring(&self.unknown1)?;
|
||||
stream.write_mcstring(&self.unknown2)?;
|
||||
stream.write_i64::<BE>(self.map_seed)?;
|
||||
stream.write_i8(self.dimension)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
#[repr(C)]
|
||||
struct PreChunk {
|
||||
x_coord: i32,
|
||||
z_coord: i32,
|
||||
mode: bool, // True to load, False to unload
|
||||
}
|
||||
|
||||
impl ToBytes for PreChunk {
|
||||
type Bytes = [u8; 9];
|
||||
|
||||
fn to_bytes(self) -> Self::Bytes {
|
||||
let mut buffer = Vec::new();
|
||||
buffer.write_i32::<BE>(self.x_coord).unwrap();
|
||||
buffer.write_i32::<BE>(self.z_coord).unwrap();
|
||||
buffer.write_u8(self.mode as u8).unwrap();
|
||||
|
||||
buffer.try_into().unwrap()
|
||||
}
|
||||
}
|
||||
38
src/to_bytes.rs
Normal file
38
src/to_bytes.rs
Normal file
|
|
@ -0,0 +1,38 @@
|
|||
use std::ops;
|
||||
|
||||
pub trait ToBytes: Sized {
|
||||
/// A byte array which can store a packed representation of this type.
|
||||
type Bytes: ByteArray;
|
||||
|
||||
fn to_bytes(self) -> Self::Bytes;
|
||||
}
|
||||
|
||||
mod private {
|
||||
pub trait ByteArray {}
|
||||
|
||||
impl<const N: usize> ByteArray for [u8; N] {}
|
||||
}
|
||||
|
||||
|
||||
pub trait ByteArray:
|
||||
private::ByteArray
|
||||
+ ops::IndexMut<usize, Output = u8>
|
||||
+ ops::IndexMut<ops::Range<usize>, Output = [u8]>
|
||||
+ AsRef<[u8]>
|
||||
+ AsMut<[u8]>
|
||||
{
|
||||
/// The length of this byte array.
|
||||
const SIZE: usize;
|
||||
|
||||
/// Return the array with all zeros.
|
||||
/// Cannot use `Default` as it is not implemented for all array sizes.
|
||||
fn zeroed() -> Self;
|
||||
}
|
||||
|
||||
impl<const N: usize> ByteArray for [u8; N] {
|
||||
const SIZE: usize = N;
|
||||
|
||||
fn zeroed() -> Self {
|
||||
[0; N]
|
||||
}
|
||||
}
|
||||
61
src/utils.rs
Normal file
61
src/utils.rs
Normal file
|
|
@ -0,0 +1,61 @@
|
|||
use std::{fmt::Display, io::{self, Read, Write}};
|
||||
|
||||
use byteorder::{ReadBytesExt, WriteBytesExt, BE};
|
||||
|
||||
#[derive(Debug, Default, Clone)]
|
||||
pub struct MCString {
|
||||
len: u16,
|
||||
chars: Vec<u8>,
|
||||
}
|
||||
|
||||
impl TryFrom<&str> for MCString {
|
||||
type Error = ();
|
||||
|
||||
fn try_from(value: &str) -> Result<Self, Self::Error> {
|
||||
if value.len() > u16::MAX as usize {
|
||||
return Err(())
|
||||
}
|
||||
|
||||
Ok(Self {
|
||||
len: value.len() as u16,
|
||||
chars: value.as_bytes().to_vec(),
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl Display for MCString {
|
||||
fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
|
||||
write!(f, "{}", String::from_utf8(self.chars.clone()).unwrap())
|
||||
}
|
||||
}
|
||||
|
||||
pub trait ReadMCString: io::Read {
|
||||
#[inline]
|
||||
fn read_mcstring(&mut self) -> Result<MCString, io::Error> {
|
||||
let len = self.read_u16::<BE>()?;
|
||||
let mut string = vec![0; len as usize];
|
||||
self.read_exact(&mut string)?;
|
||||
|
||||
Ok(MCString {
|
||||
len,
|
||||
chars: string,
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl<R: Read> ReadMCString for R {}
|
||||
|
||||
pub trait WriteMCString: io::Write {
|
||||
#[inline]
|
||||
fn write_mcstring(&mut self, string: &MCString) -> Result<(), io::Error> {
|
||||
self.write_u16::<BE>(string.len)?;
|
||||
|
||||
if string.len != 0 {
|
||||
self.write_all(&string.chars)?;
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl<W: Write> WriteMCString for W {}
|
||||
Loading…
Reference in a new issue