Initial commit
Dieser Commit ist enthalten in:
Commit
b48c214318
3
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Normale Datei
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generiert
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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12
lixcraft-derive/Cargo.toml
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12
lixcraft-derive/Cargo.toml
Normale Datei
@ -0,0 +1,12 @@
|
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[package]
|
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name = "lixcraft-derive"
|
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version = "0.1.0"
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edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
[lib]
|
||||
proc-macro = true
|
||||
|
||||
[dependencies]
|
||||
syn = { version = "1.0", features = ["full"] }
|
||||
quote = "1.0"
|
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55
lixcraft-derive/src/lib.rs
Normale Datei
55
lixcraft-derive/src/lib.rs
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@ -0,0 +1,55 @@
|
||||
use proc_macro::TokenStream;
|
||||
use syn::{Data, DeriveInput, parse_macro_input};
|
||||
use quote::quote;
|
||||
|
||||
#[proc_macro_derive(Wrapper)]
|
||||
pub fn derive_wrapper(input: TokenStream) -> TokenStream {
|
||||
let input = parse_macro_input!(input as DeriveInput);
|
||||
|
||||
let ident = &input.ident;
|
||||
|
||||
match &input.data {
|
||||
Data::Struct(s) => {
|
||||
if s.fields.len() != 1 {
|
||||
panic!("#[derive(Wrapper)] only usable with one value")
|
||||
}
|
||||
for field in s.fields.iter() {
|
||||
if field.ident.is_some() {
|
||||
panic!("#[derive(Wrapper)] only usable on newtype structs")
|
||||
}
|
||||
|
||||
let field_type = &field.ty;
|
||||
let output = quote!{
|
||||
impl From<#ident> for #field_type {
|
||||
fn from(v: #ident) -> Self {
|
||||
v.0
|
||||
}
|
||||
}
|
||||
|
||||
impl Deref for #ident {
|
||||
type Target = #field_type;
|
||||
|
||||
fn deref(&self) -> &Self::Target {
|
||||
&self.0
|
||||
}
|
||||
}
|
||||
impl DerefMut for #ident {
|
||||
fn deref_mut(&mut self) -> &mut Self::Target {
|
||||
&mut self.0
|
||||
}
|
||||
}
|
||||
|
||||
impl From<#field_type> for #ident {
|
||||
fn from(v: #field_type) -> Self {
|
||||
#ident(v)
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
return output.into();
|
||||
}
|
||||
panic!("Unreachable")
|
||||
},
|
||||
_ => panic!("#[derive(Wrapper)] only usable on structs")
|
||||
}
|
||||
}
|
||||
134
src/datatypes.rs
Normale Datei
134
src/datatypes.rs
Normale Datei
@ -0,0 +1,134 @@
|
||||
use std::ops::{Deref, DerefMut};
|
||||
use serde::{Deserialize, Deserializer, Serialize, Serializer};
|
||||
use serde::de::Error;
|
||||
use lixcraft_derive::Wrapper;
|
||||
|
||||
#[derive(Copy, Clone, Debug, PartialEq, Eq, Wrapper)]
|
||||
pub struct VarInt(pub i32);
|
||||
|
||||
impl From<VarInt> for usize {
|
||||
fn from(v: VarInt) -> Self {
|
||||
v.0 as usize
|
||||
}
|
||||
}
|
||||
|
||||
impl From<usize> for VarInt {
|
||||
fn from(v: usize) -> Self {
|
||||
VarInt(v as i32)
|
||||
}
|
||||
}
|
||||
|
||||
impl Serialize for VarInt {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
|
||||
let mut v = self.0 as u32;
|
||||
loop {
|
||||
if v & 0x80 == 0 {
|
||||
return serializer.serialize_u8(v as u8);
|
||||
}
|
||||
|
||||
serializer.serialize_u8((v as u8 & 0x7f) | 0x80)?;
|
||||
v >>= 7;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de> Deserialize<'de> for VarInt {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'de> {
|
||||
let mut num_read = 0;
|
||||
let mut result = 0;
|
||||
loop {
|
||||
let read = u8::deserialize(deserializer)?;
|
||||
let value = i32::from(read & 0b0111_1111);
|
||||
result |= value.overflowing_shl(7 * num_read).0;
|
||||
|
||||
num_read += 1;
|
||||
|
||||
if num_read > 5 {
|
||||
return Err(D::Error::custom("VarInt too large"));
|
||||
}
|
||||
if read & 0b1000_0000 == 0 {
|
||||
break;
|
||||
}
|
||||
}
|
||||
Ok(VarInt(result))
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub enum NextState {
|
||||
Status,
|
||||
Login
|
||||
}
|
||||
|
||||
impl Serialize for NextState {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
|
||||
VarInt::from(match self {
|
||||
NextState::Status => 1,
|
||||
NextState::Login => 2
|
||||
}).serialize(serializer)
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de> Deserialize<'de> for NextState {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'de> {
|
||||
match VarInt::deserialize(deserializer)? {
|
||||
VarInt(1) => Ok(NextState::Status),
|
||||
VarInt(2) => Ok(NextState::Login),
|
||||
_ => Err(D::Error::custom("Invalid NextState"))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[derive(Debug, Serialize, Deserialize)]
|
||||
pub struct StatusResponseVersion {
|
||||
name: String,
|
||||
protocol: i32
|
||||
}
|
||||
|
||||
#[derive(Debug, Serialize, Deserialize)]
|
||||
pub struct StatusResponseSample {
|
||||
name: String,
|
||||
id: String
|
||||
}
|
||||
|
||||
#[derive(Debug, Serialize, Deserialize)]
|
||||
pub struct StatusResponsePlayers {
|
||||
max: i32,
|
||||
online: i32,
|
||||
sample: Vec<StatusResponseSample>
|
||||
}
|
||||
|
||||
#[derive(Debug, Serialize, Deserialize)]
|
||||
pub struct StatusResponseDescription {
|
||||
text: String
|
||||
}
|
||||
|
||||
#[derive(Debug)]
|
||||
pub struct StatusResponse {
|
||||
version: StatusResponseVersion,
|
||||
players: StatusResponsePlayers,
|
||||
description: StatusResponseDescription,
|
||||
//#[serde(skip_serializing_if = "Option::is_none")]
|
||||
favicon: Option<String>
|
||||
}
|
||||
|
||||
impl Serialize for StatusResponse {
|
||||
fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error> where S: Serializer {
|
||||
serializer.serialize_str(&match serde_json::to_string(self) {
|
||||
Ok(v) => v,
|
||||
Err(_) => return Err(serde::ser::Error::custom("Could not serialize status response"))
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
impl<'de> Deserialize<'de> for StatusResponse {
|
||||
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error> where D: Deserializer<'de> {
|
||||
match String::deserialize(deserializer) {
|
||||
Ok(json) => match serde_json::from_str(&json) {
|
||||
Ok(v) => Ok(v),
|
||||
Err(_) => Err(D::Error::custom("Could not parse json status response"))
|
||||
},
|
||||
Err(err) => Err(err)
|
||||
}
|
||||
}
|
||||
}
|
||||
204
src/deserializer.rs
Normale Datei
204
src/deserializer.rs
Normale Datei
@ -0,0 +1,204 @@
|
||||
use std::fmt::{Debug, Display, Formatter};
|
||||
use bytes::{Buf, Bytes};
|
||||
use serde::de::{DeserializeSeed, Error, SeqAccess, StdError, Visitor};
|
||||
use serde::{Deserialize, Deserializer};
|
||||
use crate::datatypes::VarInt;
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
pub enum JavaDeserError {
|
||||
UnexpectedEnd,
|
||||
UnexpectedCustom,
|
||||
InvalidValue
|
||||
}
|
||||
|
||||
impl Display for JavaDeserError {
|
||||
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
|
||||
Debug::fmt(&self, f)
|
||||
}
|
||||
}
|
||||
|
||||
impl StdError for JavaDeserError{}
|
||||
|
||||
impl Error for JavaDeserError{
|
||||
fn custom<T>(msg: T) -> Self where T: Display {
|
||||
JavaDeserError::UnexpectedCustom
|
||||
}
|
||||
}
|
||||
|
||||
pub struct JavaDeserializer {
|
||||
input: Bytes
|
||||
}
|
||||
|
||||
impl JavaDeserializer {
|
||||
|
||||
fn assert_remaining(&self, size: usize) -> Result<(), JavaDeserError> {
|
||||
match self.input.remaining() >= size {
|
||||
true => Ok(()),
|
||||
false => Err(JavaDeserError::UnexpectedEnd)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a, 'de> Deserializer<'de> for &'a mut JavaDeserializer {
|
||||
type Error = JavaDeserError;
|
||||
|
||||
fn deserialize_any<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Any not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_bool<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(1)?;
|
||||
match self.input.get_u8() {
|
||||
0x00 => visitor.visit_bool(false),
|
||||
0x01 => visitor.visit_bool(true),
|
||||
_ => Err(JavaDeserError::InvalidValue)
|
||||
}
|
||||
}
|
||||
|
||||
fn deserialize_i8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(1)?;
|
||||
visitor.visit_i8(self.input.get_i8())
|
||||
}
|
||||
|
||||
fn deserialize_i16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(2)?;
|
||||
visitor.visit_i16(self.input.get_i16())
|
||||
}
|
||||
|
||||
fn deserialize_i32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(4)?;
|
||||
visitor.visit_i32(self.input.get_i32())
|
||||
}
|
||||
|
||||
fn deserialize_i64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(8)?;
|
||||
visitor.visit_i64(self.input.get_i64())
|
||||
}
|
||||
|
||||
fn deserialize_u8<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(1)?;
|
||||
visitor.visit_u8(self.input.get_u8())
|
||||
}
|
||||
|
||||
fn deserialize_u16<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(2)?;
|
||||
visitor.visit_u16(self.input.get_u16())
|
||||
}
|
||||
|
||||
fn deserialize_u32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(4)?;
|
||||
visitor.visit_u32(self.input.get_u32())
|
||||
}
|
||||
|
||||
fn deserialize_u64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(8)?;
|
||||
visitor.visit_u64(self.input.get_u64())
|
||||
}
|
||||
|
||||
fn deserialize_f32<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(4)?;
|
||||
visitor.visit_f32(self.input.get_f32())
|
||||
}
|
||||
|
||||
fn deserialize_f64<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.assert_remaining(8)?;
|
||||
visitor.visit_f64(self.input.get_f64())
|
||||
}
|
||||
|
||||
fn deserialize_char<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Char not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_str<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
self.deserialize_string(visitor)
|
||||
}
|
||||
|
||||
fn deserialize_string<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
let size = VarInt::deserialize(self)?;
|
||||
if *size > 32767 {
|
||||
return Err(JavaDeserError::InvalidValue)
|
||||
}
|
||||
|
||||
self.assert_remaining(usize::from(size))?;
|
||||
visitor.visit_string(match String::from_utf8(self.input.copy_to_bytes(usize::from(size)).to_vec()) {
|
||||
Ok(v) => v,
|
||||
Err(_) => return Err(JavaDeserError::InvalidValue)
|
||||
})
|
||||
}
|
||||
|
||||
fn deserialize_bytes<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Bytes not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_byte_buf<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Byte buf not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_option<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Option not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_unit<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Unit not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_unit_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Unit struct not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_newtype_struct<V>(self, name: &'static str, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
visitor.visit_newtype_struct(self)
|
||||
}
|
||||
|
||||
fn deserialize_seq<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
let size = VarInt::deserialize(self)?;
|
||||
visitor.visit_seq(LengthPrefixedSeq { de: self, remaining: usize::from(size) })
|
||||
}
|
||||
|
||||
fn deserialize_tuple<V>(self, len: usize, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Tuple not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_tuple_struct<V>(self, name: &'static str, len: usize, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Tuple struct not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_map<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Map not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_struct<V>(self, name: &'static str, fields: &'static [&'static str], visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Struct (missing #[serde(flatten)]?) not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_enum<V>(self, name: &'static str, variants: &'static [&'static str], visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Enum not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_identifier<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Identifier not deserializable in Java protocol")
|
||||
}
|
||||
|
||||
fn deserialize_ignored_any<V>(self, visitor: V) -> Result<V::Value, Self::Error> where V: Visitor<'de> {
|
||||
panic!("Ignored any not deserializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
struct LengthPrefixedSeq<'a> {
|
||||
de: &'a mut JavaDeserializer,
|
||||
remaining: usize
|
||||
}
|
||||
|
||||
impl<'de, 'a> SeqAccess<'de> for LengthPrefixedSeq<'a> {
|
||||
type Error = <&'a mut JavaDeserializer as Deserializer<'de>>::Error;
|
||||
|
||||
fn next_element_seed<T>(&mut self, seed: T) -> Result<Option<T::Value>, Self::Error> where T: DeserializeSeed<'de> {
|
||||
match self.remaining {
|
||||
0 => Ok(None),
|
||||
_ => {
|
||||
self.remaining -= 1;
|
||||
seed.deserialize(self.de).map(Some)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
103
src/main.rs
Normale Datei
103
src/main.rs
Normale Datei
@ -0,0 +1,103 @@
|
||||
extern crate core;
|
||||
|
||||
mod serializer;
|
||||
mod datatypes;
|
||||
mod deserializer;
|
||||
mod packets;
|
||||
|
||||
use tokio::io::{AsyncRead};
|
||||
use tokio::net::{TcpListener, TcpStream};
|
||||
|
||||
use std::error::Error;
|
||||
use std::sync::Arc;
|
||||
use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
|
||||
use async_trait::async_trait;
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), Box<dyn Error>> {
|
||||
let listen_addr = String::from("127.0.0.1:25565");
|
||||
|
||||
println!("Listening on: {}", listen_addr);
|
||||
|
||||
let listener = TcpListener::bind(listen_addr).await?;
|
||||
|
||||
while let Ok((inbound, addr)) = listener.accept().await {
|
||||
//TODO
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
pub struct Stoppable {
|
||||
interruptor: tokio::sync::oneshot::Receiver<bool>,
|
||||
interrupted: tokio::sync::oneshot::Sender<bool>
|
||||
}
|
||||
|
||||
pub struct Stopper {
|
||||
interruptable: tokio::sync::oneshot::Sender<bool>,
|
||||
interrupted: tokio::sync::oneshot::Receiver<bool>
|
||||
}
|
||||
|
||||
impl Stopper {
|
||||
pub fn new() -> (Stopper, Stoppable) {
|
||||
let (interruptable, interruptor) = tokio::sync::oneshot::channel();
|
||||
let (interrupted_s, interrupted_r) = tokio::sync::oneshot::channel();
|
||||
|
||||
(Stopper {interruptable, interrupted: interrupted_r}, Stoppable {interruptor, interrupted: interrupted_s})
|
||||
}
|
||||
|
||||
pub async fn stop(&mut self) {
|
||||
if self.interruptable.is_closed() {
|
||||
return;
|
||||
}
|
||||
self.interruptable.send(true).unwrap_or_default();
|
||||
self.interrupted.await.expect_err("Send on Stopper.interrupted occured");
|
||||
}
|
||||
}
|
||||
|
||||
pub trait InputStream {}
|
||||
pub trait OutputStream {}
|
||||
|
||||
pub struct StoppableAsyncRead<T: AsyncRead> {
|
||||
inner: T,
|
||||
stoppable: Stoppable
|
||||
}
|
||||
|
||||
impl <T: AsyncRead> StoppableAsyncRead<T> {
|
||||
pub fn new(inner: T, stoppable: Stoppable) -> StoppableAsyncRead<T> {
|
||||
StoppableAsyncRead { inner, stoppable }
|
||||
}
|
||||
|
||||
pub fn unwrap(self) -> T {
|
||||
self.inner
|
||||
}
|
||||
}
|
||||
|
||||
impl <T: AsyncRead> InputStream for StoppableAsyncRead<T> {}
|
||||
|
||||
impl OutputStream for OwnedWriteHalf {}
|
||||
|
||||
#[async_trait]
|
||||
pub trait Reader<T: InputStream> {
|
||||
async fn run(self, stream: T, connection: Arc<Connection>);
|
||||
}
|
||||
|
||||
pub struct Connection {
|
||||
writer: Box<parking_lot::Mutex<dyn OutputStream>>,
|
||||
stopper: Stopper
|
||||
}
|
||||
|
||||
impl Connection {
|
||||
pub fn new<T: 'static + Reader<StoppableAsyncRead<OwnedReadHalf>>>(stream: TcpStream, reader: T) -> Arc<Connection> {
|
||||
let (read, write) = stream.into_split();
|
||||
let (stopper, stoppable) = Stopper::new();
|
||||
|
||||
let connection = Arc::new(Connection {
|
||||
writer: Box::new(parking_lot::Mutex::new(write)),
|
||||
stopper
|
||||
});
|
||||
|
||||
tokio::spawn(reader.run(StoppableAsyncRead::new(read, stoppable), connection.clone()));
|
||||
|
||||
connection
|
||||
}
|
||||
}
|
||||
31
src/packets.rs
Normale Datei
31
src/packets.rs
Normale Datei
@ -0,0 +1,31 @@
|
||||
mod handshake {
|
||||
use serde::{Serialize, Deserialize};
|
||||
use crate::datatypes::{NextState, VarInt};
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
pub struct HandshakePacket {
|
||||
protocol_version: VarInt,
|
||||
server_address: String,
|
||||
server_port: u16,
|
||||
next_state: NextState
|
||||
}
|
||||
}
|
||||
|
||||
mod status {
|
||||
use serde::{Serialize, Deserialize};
|
||||
use crate::datatypes::StatusResponse;
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
pub struct RequestPacket {}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
pub struct ResponsePacket {
|
||||
response: StatusResponse
|
||||
}
|
||||
|
||||
#[derive(Serialize, Deserialize, Debug)]
|
||||
pub struct PingPacket {
|
||||
payload: u64
|
||||
}
|
||||
}
|
||||
|
||||
135
src/passthroughmain.rs
Normale Datei
135
src/passthroughmain.rs
Normale Datei
@ -0,0 +1,135 @@
|
||||
extern crate core;
|
||||
|
||||
mod serializer;
|
||||
mod datatypes;
|
||||
mod deserializer;
|
||||
mod packets;
|
||||
|
||||
use tokio::io;
|
||||
use tokio::io::{AsyncRead, AsyncWriteExt};
|
||||
use tokio::net::{TcpListener, TcpStream};
|
||||
|
||||
use futures::FutureExt;
|
||||
use std::error::Error;
|
||||
use std::sync::Arc;
|
||||
use tokio::net::tcp::{OwnedReadHalf, OwnedWriteHalf};
|
||||
use async_trait::async_trait;
|
||||
|
||||
#[tokio::main]
|
||||
async fn main() -> Result<(), Box<dyn Error>> {
|
||||
let listen_addr = String::from("127.0.0.1:25565");
|
||||
let server_addr = String::from("steamwar.de:25565");
|
||||
|
||||
println!("Listening on: {}", listen_addr);
|
||||
println!("Proxying to: {}", server_addr);
|
||||
|
||||
let listener = TcpListener::bind(listen_addr).await?;
|
||||
|
||||
while let Ok((inbound, _)) = listener.accept().await {
|
||||
let transfer = transfer(inbound, server_addr.clone()).map(|r| {
|
||||
if let Err(e) = r {
|
||||
println!("Failed to transfer; error={}", e);
|
||||
}
|
||||
});
|
||||
|
||||
tokio::spawn(transfer);
|
||||
}
|
||||
|
||||
Ok(())
|
||||
}
|
||||
|
||||
pub struct Stoppable {
|
||||
interruptor: tokio::sync::oneshot::Receiver<bool>,
|
||||
interrupted: tokio::sync::oneshot::Sender<bool>
|
||||
}
|
||||
|
||||
pub struct Stopper {
|
||||
interruptable: tokio::sync::oneshot::Sender<bool>,
|
||||
interrupted: tokio::sync::oneshot::Receiver<bool>
|
||||
}
|
||||
|
||||
impl Stopper {
|
||||
pub fn new() -> (Stopper, Stoppable) {
|
||||
let (interruptable, interruptor) = tokio::sync::oneshot::channel();
|
||||
let (interrupted_s, interrupted_r) = tokio::sync::oneshot::channel();
|
||||
|
||||
(Stopper {interruptable, interrupted: interrupted_r}, Stoppable {interruptor, interrupted: interrupted_s})
|
||||
}
|
||||
|
||||
pub async fn stop(&mut self) {
|
||||
if self.interruptable.is_closed() {
|
||||
return;
|
||||
}
|
||||
self.interruptable.send(true).unwrap_or_default();
|
||||
self.interrupted.await.expect_err("Send on Stopper.interrupted occured");
|
||||
}
|
||||
}
|
||||
|
||||
pub trait InputStream {}
|
||||
pub trait OutputStream {}
|
||||
|
||||
pub struct StoppableAsyncRead<T: AsyncRead> {
|
||||
inner: T,
|
||||
stoppable: Stoppable
|
||||
}
|
||||
|
||||
impl <T: AsyncRead> StoppableAsyncRead<T> {
|
||||
pub fn new(inner: T, stoppable: Stoppable) -> StoppableAsyncRead<T> {
|
||||
StoppableAsyncRead { inner, stoppable }
|
||||
}
|
||||
|
||||
pub fn unwrap(self) -> T {
|
||||
self.inner
|
||||
}
|
||||
}
|
||||
|
||||
impl <T: AsyncRead> InputStream for StoppableAsyncRead<T> {}
|
||||
|
||||
impl OutputStream for OwnedWriteHalf {}
|
||||
|
||||
#[async_trait]
|
||||
pub trait Reader<T: InputStream> {
|
||||
async fn run(self, stream: T, connection: Arc<Connection>);
|
||||
}
|
||||
|
||||
pub struct Connection {
|
||||
writer: Box<parking_lot::Mutex<dyn OutputStream>>,
|
||||
stopper: Stopper
|
||||
}
|
||||
|
||||
impl Connection {
|
||||
pub fn new<T: 'static + Reader<StoppableAsyncRead<OwnedReadHalf>>>(stream: TcpStream, reader: T) -> Arc<Connection> {
|
||||
let (read, write) = stream.into_split();
|
||||
let (stopper, stoppable) = Stopper::new();
|
||||
|
||||
let connection = Arc::new(Connection {
|
||||
writer: Box::new(parking_lot::Mutex::new(write)),
|
||||
stopper
|
||||
});
|
||||
|
||||
tokio::spawn(reader.run(StoppableAsyncRead::new(read, stoppable), connection.clone()));
|
||||
|
||||
connection
|
||||
}
|
||||
}
|
||||
|
||||
async fn transfer(mut inbound: TcpStream, proxy_addr: String) -> Result<(), Box<dyn Error>> {
|
||||
let mut outbound = TcpStream::connect(proxy_addr).await?;
|
||||
|
||||
let (mut ri, mut wi) = inbound.split();
|
||||
let (mut ro, mut wo) = outbound.split();
|
||||
|
||||
let client_to_server = async {
|
||||
io::copy(&mut ri, &mut wo).await?;
|
||||
wo.shutdown().await
|
||||
};
|
||||
|
||||
let server_to_client = async {
|
||||
io::copy(&mut ro, &mut wi).await?;
|
||||
wi.shutdown().await
|
||||
};
|
||||
|
||||
tokio::try_join!(client_to_server, server_to_client)?;
|
||||
|
||||
Ok(())
|
||||
}
|
||||
282
src/serializer.rs
Normale Datei
282
src/serializer.rs
Normale Datei
@ -0,0 +1,282 @@
|
||||
use std::fmt::{Debug, Display, Formatter};
|
||||
use bytes::{BufMut, BytesMut};
|
||||
use serde::{Serialize, Serializer};
|
||||
use serde::ser::{SerializeMap, SerializeSeq, SerializeStruct, SerializeStructVariant, SerializeTuple, SerializeTupleStruct, SerializeTupleVariant, StdError};
|
||||
use crate::datatypes::VarInt;
|
||||
|
||||
#[derive(Copy, Clone, Debug)]
|
||||
struct JavaSerError();
|
||||
|
||||
impl StdError for JavaSerError {}
|
||||
|
||||
impl Display for JavaSerError {
|
||||
fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {
|
||||
Debug::fmt(&self, f)
|
||||
}
|
||||
}
|
||||
|
||||
impl serde::ser::Error for JavaSerError {
|
||||
fn custom<T>(msg: T) -> Self where T: Display {
|
||||
JavaSerError()
|
||||
}
|
||||
}
|
||||
|
||||
pub struct JavaSerializer {
|
||||
output: BytesMut
|
||||
}
|
||||
|
||||
impl JavaSerializer {
|
||||
pub fn serialize<T: Serialize>(value: &T) -> BytesMut {
|
||||
let mut serializer = JavaSerializer {
|
||||
output: BytesMut::with_capacity(256)
|
||||
};
|
||||
|
||||
match value.serialize(&mut serializer) {
|
||||
Ok(()) => serializer.output,
|
||||
Err(_) => panic!("Serialization error")
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> Serializer for &'a mut JavaSerializer {
|
||||
type Ok = ();
|
||||
type Error = JavaSerError;
|
||||
type SerializeSeq = Self;
|
||||
type SerializeTuple = Self;
|
||||
type SerializeTupleStruct = Self;
|
||||
type SerializeTupleVariant = Self;
|
||||
type SerializeMap = Self;
|
||||
type SerializeStruct = Self;
|
||||
type SerializeStructVariant = Self;
|
||||
|
||||
fn serialize_bool(self, v: bool) -> Result<Self::Ok, Self::Error> {
|
||||
match v {
|
||||
true => self.output.put_u8(0x00),
|
||||
false => self.output.put_u8(0x01),
|
||||
};
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_i8(self, v: i8) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_i8(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_i16(self, v: i16) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_i16(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_i32(self, v: i32) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_i32(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_i64(self, v: i64) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_i64(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_u8(self, v: u8) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_u8(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_u16(self, v: u16) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_u16(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_u32(self, v: u32) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_u32(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_u64(self, v: u64) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_u64(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_f32(self, v: f32) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_f32(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_f64(self, v: f64) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_f64(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_char(self, v: char) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Char not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_str(self, v: &str) -> Result<Self::Ok, Self::Error> {
|
||||
let v = v.as_bytes();
|
||||
VarInt::serialize(&VarInt::from(v.len()), self)?;
|
||||
self.serialize_bytes(v)
|
||||
}
|
||||
|
||||
fn serialize_bytes(self, v: &[u8]) -> Result<Self::Ok, Self::Error> {
|
||||
self.output.put_slice(v);
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_none(self) -> Result<Self::Ok, Self::Error> {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn serialize_some<T: ?Sized>(self, value: &T) -> Result<Self::Ok, Self::Error> where T: Serialize {
|
||||
value.serialize(self)
|
||||
}
|
||||
|
||||
fn serialize_unit(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Unit not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_unit_struct(self, name: &'static str) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Unit struct not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_unit_variant(self, name: &'static str, variant_index: u32, variant: &'static str) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Variant not serializable in Java protocol")
|
||||
//VarInt::from(variant_index as i32).serialize(self)
|
||||
}
|
||||
|
||||
fn serialize_newtype_struct<T: ?Sized>(self, name: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where T: Serialize {
|
||||
value.serialize(self)
|
||||
}
|
||||
|
||||
fn serialize_newtype_variant<T: ?Sized>(self, name: &'static str, variant_index: u32, variant: &'static str, value: &T) -> Result<Self::Ok, Self::Error> where T: Serialize {
|
||||
panic!("Newtype variant not serializable in Java protocol")
|
||||
//VarInt::from(variant_index as i32).serialize(self)?;
|
||||
//value.serialize(self)
|
||||
}
|
||||
|
||||
fn serialize_seq(self, len: Option<usize>) -> Result<Self::SerializeSeq, Self::Error> {
|
||||
match len {
|
||||
Some(v) => VarInt::from(v).serialize(self)?,
|
||||
None => ()
|
||||
}
|
||||
Ok(self)
|
||||
}
|
||||
|
||||
fn serialize_tuple(self, len: usize) -> Result<Self::SerializeTuple, Self::Error> {
|
||||
panic!("Tuple not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_tuple_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeTupleStruct, Self::Error> {
|
||||
panic!("Tuple struct not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_tuple_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeTupleVariant, Self::Error> {
|
||||
panic!("Tuple struct variant not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_map(self, len: Option<usize>) -> Result<Self::SerializeMap, Self::Error> {
|
||||
panic!("Maps not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_struct(self, name: &'static str, len: usize) -> Result<Self::SerializeStruct, Self::Error> {
|
||||
Ok(self)
|
||||
}
|
||||
|
||||
fn serialize_struct_variant(self, name: &'static str, variant_index: u32, variant: &'static str, len: usize) -> Result<Self::SerializeStructVariant, Self::Error> {
|
||||
panic!("Struct variant not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeSeq for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
value.serialize(*self)
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeStruct for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
value.serialize(*self)
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
Ok(())
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeTuple for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_element<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Tuple not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Tuple not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeTupleStruct for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Tuple struct not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Tuple struct not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeTupleVariant for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_field<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Tuple variant not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Tuple variant not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeMap for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_key<T: ?Sized>(&mut self, key: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Map not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn serialize_value<T: ?Sized>(&mut self, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Map not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Map not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
|
||||
impl<'a> SerializeStructVariant for &'a mut JavaSerializer {
|
||||
type Ok = <&'a mut JavaSerializer as Serializer>::Ok;
|
||||
type Error = <&'a mut JavaSerializer as Serializer>::Error;
|
||||
|
||||
fn serialize_field<T: ?Sized>(&mut self, key: &'static str, value: &T) -> Result<(), Self::Error> where T: Serialize {
|
||||
panic!("Struct variant not serializable in Java protocol")
|
||||
}
|
||||
|
||||
fn end(self) -> Result<Self::Ok, Self::Error> {
|
||||
panic!("Struct variant not serializable in Java protocol")
|
||||
}
|
||||
}
|
||||
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