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hell is over!

This commit is contained in:
core 2023-04-09 13:40:44 -04:00
parent dda1b9e50e
commit 5c97ea362e
Signed by: core
GPG Key ID: FDBF740DADDCEECF
11 changed files with 157 additions and 50 deletions
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1
Cargo.lock generated
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@ -76,6 +76,7 @@ dependencies = [
"console_log",
"futures",
"js-sys",
"lazy_static",
"log",
"protocol",
"rmp-serde",

1
client/Cargo.toml
View File

@ -21,3 +21,4 @@ protocol = { version = "0.1.0", path = "../protocol" }
rmp-serde = "1.1"
ws_stream_wasm = "0.7"
serde = { version = "1", features = ["derive"] }
lazy_static = "1.4"

19
client/src/chat.rs Normal file
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@ -0,0 +1,19 @@
use wasm_bindgen::prelude::*;
use protocol::MessageC2S;
use crate::CLIENT;
use futures::SinkExt;
#[wasm_bindgen]
pub async fn send_chat(message: &str) -> Result<(), JsError> {
let client_data = &mut CLIENT.write()?.client_data;
if let Some(data) = client_data {
send!(data.tx, &MessageC2S::Chat {
message: message.to_string()
}).await?;
} else {
return Err(JsError::new("Client not yet connected to server"));
}
Ok(())
}

74
client/src/lib.rs
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@ -1,7 +1,7 @@
use std::error::Error;
use futures::stream::{SplitSink, SplitStream};
use futures::StreamExt;
use log::{debug, error, info, Level, trace};
use log::{debug, error, info, Level, trace, warn};
use wasm_bindgen::prelude::*;
use ws_stream_wasm::{WsMessage, WsMeta, WsStream};
use protocol::State;
@ -9,20 +9,20 @@ use protocol::PROTOCOL_VERSION;
use protocol::MessageS2C;
use protocol::MessageC2S;
use futures::SinkExt;
use lazy_static::lazy_static;
use std::sync::Arc;
use std::sync::RwLock;
use futures::FutureExt;
#[macro_use]
pub mod macros;
pub mod chat;
#[wasm_bindgen]
extern {
pub fn alert(s: &str);
}
#[wasm_bindgen]
pub fn send_chat(chat: &str) {
info!("sending chat: {}", chat);
}
#[wasm_bindgen]
pub async fn rust_init(gateway: &str, username: &str) -> Result<(), JsError> {
console_log::init_with_level(Level::Debug).unwrap();
@ -37,17 +37,27 @@ pub async fn rust_init(gateway: &str, username: &str) -> Result<(), JsError> {
}
};
info!("Gateway client exited");
info!("Gateway client set up successfully");
Ok(())
}
pub struct Client {
pub client_data: Option<ClientData>,
}
pub struct ClientData {
pub state: State,
pub tx: SplitSink<WsStream, WsMessage>,
pub rx: SplitStream<WsStream>
}
lazy_static! {
pub static ref CLIENT: Arc<RwLock<Client>> = Arc::new(RwLock::new(Client {
client_data: None
}));
}
pub async fn main(gateway: &str, username: &str) -> Result<(), Box<dyn Error>> {
info!("FAST CONNECT: {}", gateway);
let gateway_url = url::Url::parse(gateway)?;
@ -56,7 +66,7 @@ pub async fn main(gateway: &str, username: &str) -> Result<(), Box<dyn Error>> {
trace!("Connected to gateway socket");
let (tx, rx) = ws_stream.split();
let mut client = Client {
let mut client_data = ClientData {
state: State::Handshake,
tx,
rx
@ -64,7 +74,7 @@ pub async fn main(gateway: &str, username: &str) -> Result<(), Box<dyn Error>> {
trace!("Split stream, handshaking with server");
send!(client.tx, &MessageC2S::Hello {
send!(client_data.tx, &MessageC2S::Hello {
next_state: State::Play,
version: PROTOCOL_VERSION,
requested_username: username.to_string()
@ -72,22 +82,64 @@ pub async fn main(gateway: &str, username: &str) -> Result<(), Box<dyn Error>> {
trace!("Sent handshake start packet");
if let Some(msg) = recv_now!(client.rx)? {
if let Some(msg) = recv_now!(client_data.rx)? {
let typed_msg: MessageS2C = msg;
match typed_msg {
MessageS2C::Hello { version, given_username, next_state } => {
info!("FAST CONNECT - connected to server protocol {} given username {}, switching to state {:?}", version, given_username, next_state);
client.state = next_state;
client_data.state = next_state;
},
MessageS2C::Goodbye { reason } => {
error!("server disconnected before finishing handshake: {:?}", reason);
return Err(format!("disconnected by server: {:?}", reason).into());
},
_ => {
warn!("received unexpected packet from server: {:?}", typed_msg);
}
}
} else {
error!("Server closed the connection")
}
CLIENT.write()?.client_data = Some(client_data);
Ok(())
}
#[wasm_bindgen]
pub async fn update_socket() -> Result<(), JsError> {
let mut client = CLIENT.write()?;
if client.client_data.is_none() {
return Err(JsError::new("Client not yet initialized"));
}
let client_data = client.client_data.as_mut().unwrap();
let maybe_msg: Option<MessageS2C> = match recv!(client_data.rx) {
Ok(r) => r,
Err(e) => {
return Err(JsError::new(e))
}
};
if let Some(msg) = maybe_msg {
match msg {
MessageS2C::Goodbye { reason } => {
info!("server sent disconnect: {:?}", reason);
client.client_data = None;
return Err(JsError::new("disconnected by server"));
}
MessageS2C::Chat { from, message } => {
info!("[CHAT] {}: {}", from, message);
// TODO: Handle
},
_ => {
warn!("server sent unexpected packet {:?}, ignoring", msg);
}
}
}
Ok(())
}

22
client/src/macros.rs
View File

@ -18,24 +18,16 @@ macro_rules! recv {
{
if let Some(future_result) = $reader.next().now_or_never() {
if let Some(msg) = future_result {
match msg {
Ok(msg) => {
if msg.is_binary() {
match rmp_serde::from_slice(&msg.into_data()) {
Ok(d) => Ok(Some(d)),
Err(e) => {
log::error!("error deserializing message: {}", e);
Ok(None)
}
}
} else {
if let WsMessage::Binary(msg) = msg {
match rmp_serde::from_slice(&msg) {
Ok(d) => Ok(Some(d)),
Err(e) => {
log::error!("error deserializing message: {}", e);
Ok(None)
}
},
Err(e) => {
log::error!("error receiving message: {}", e);
Ok(None)
}
} else {
Ok(None)
}
} else {
log::error!("pipe closed");

11
protocol/src/lib.rs
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@ -2,7 +2,7 @@ use serde::{Deserialize, Serialize};
pub const PROTOCOL_VERSION: u32 = 1;
#[derive(Serialize, Deserialize, Debug, Clone)]
#[derive(Serialize, Deserialize, Debug, Clone, Copy)]
pub enum State {
Handshake,
Play
@ -18,6 +18,10 @@ pub enum MessageC2S {
Goodbye {
reason: GoodbyeReason
},
Chat {
message: String
}
}
@ -31,6 +35,11 @@ pub enum MessageS2C {
Goodbye {
reason: GoodbyeReason
},
Chat {
from: String,
message: String
}
}

36
server/src/client_handler.rs
View File

@ -13,19 +13,24 @@ use crate::{send, recv};
pub async fn handle_client(mgr: ClientManager, remote_addr: SocketAddr, mut rx: Receiver<ClientHandlerMessage>, mut client_tx: SplitSink<WebSocketStream<Upgraded>, Message>, mut client_rx: SplitStream<WebSocketStream<Upgraded>>) -> Result<(), Box<dyn Error>> {
let mut state = State::Handshake;
let mut username = String::new();
loop {
if let Some(msg) = rx.recv().await {
match msg {
ClientHandlerMessage::Tick => {} // this intentionally does nothing
ClientHandlerMessage::Tick => {} // this intentionally does nothing,
ClientHandlerMessage::ChatMessage { from, message } => {
send!(client_tx, &MessageS2C::Chat {
message,
from
}).await?;
}
}
} else {
info!("channel closed, shutting down");
break;
}
info!("here");
if let Some(pkt) = recv!(client_rx)? {
match state {
State::Handshake => {
@ -69,13 +74,22 @@ pub async fn handle_client(mgr: ClientManager, remote_addr: SocketAddr, mut rx:
send!(client_tx, &MessageS2C::Hello {
version,
given_username: requested_username,
given_username: requested_username.clone(),
next_state,
}).await?;
state = next_state;
username = requested_username;
},
MessageC2S::Goodbye { reason } => {
info!("client sent goodbye: {:?}", reason);
break;
},
MessageC2S::Chat { .. } => {
error!("client sent unexpected packet {:?} for state {:?}", pkt, state);
send!(client_tx, &MessageS2C::Goodbye {
reason: GoodbyeReason::UnexpectedPacket,
}).await?;
break;
}
}
}
@ -87,10 +101,22 @@ pub async fn handle_client(mgr: ClientManager, remote_addr: SocketAddr, mut rx:
reason: GoodbyeReason::UnexpectedPacket,
}).await?;
break;
}
},
MessageC2S::Goodbye { reason } => {
info!("client sent goodbye: {:?}", reason);
break;
},
MessageC2S::Chat { message } => {
info!("[{}] CHAT: [{}] {}", remote_addr, username, message);
for (addr, client_thread) in mgr.handlers.read().await.iter() {
match client_thread.tx.send(ClientHandlerMessage::ChatMessage { from: username.clone(), message: message.clone() }).await {
Ok(_) => (),
Err(e) => {
error!("unable to update a client thread: {}", e);
}
}
}
}
}
}

3
server/src/handler.rs
View File

@ -20,5 +20,6 @@ pub struct ClientHandler {
}
pub enum ClientHandlerMessage {
Tick
Tick,
ChatMessage { from: String, message: String }
}

4
server/src/main.rs
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@ -7,7 +7,7 @@ use tokio_tungstenite::WebSocketStream;
use tungstenite::{Error, handshake};
use futures::stream::StreamExt;
use lazy_static::lazy_static;
use log::{error, info};
use log::{error, info, Level};
use tokio::sync::RwLock;
use protocol::State;
use crate::handler::{ClientHandler, ClientManager};
@ -117,7 +117,7 @@ lazy_static! {
#[tokio::main]
async fn main() {
simple_logger::init_with_env().expect("Unable to start logging service");
simple_logger::init_with_level(Level::Debug).expect("Unable to start logging service");
let addr = SocketAddr::from(([127, 0, 0, 1], 3000));

18
web/index.html
View File

@ -6,14 +6,14 @@
</head>
<body>
<script type="module">
// If you're getting build errors here | you need to run `just build_client_bundle` first, to compile client code
// v
import init from "./dist/client.js";
init().then(() => {
// wasm-pack code here
})
</script>
<form target="/play.html" method="GET">
<label for="server">Gateway server</label>
<input type="text" name="server" id="server" value="ws://localhost:3000/ws" required />
<br>
<label for="username">Username</label>
<input type="text" name="username" id="username" required />
<br>
<button>Launch!</button>
</form>
</body>
</html>

16
web/play.html
View File

@ -20,13 +20,19 @@
<script type="module">
// If you're getting build errors here | you need to run `just build_client_bundle` first, to compile client code
// v
import init, { rust_init, send_chat } from "./dist/client.js";
import init, { rust_init, send_chat, update_socket } from "./dist/client.js";
init().then(() => {
rust_init("ws://localhost:3000/ws", "core");
const urlSearchParams = new URLSearchParams(window.location.search);
document.getElementById("chat-submit").addEventListener("click", e => {
send_chat(document.getElementById("chat-value").value);
})
rust_init(urlSearchParams.get("server"), urlSearchParams.get("username")).then(() => {
document.getElementById("chat-submit").addEventListener("click", e => {
send_chat(document.getElementById("chat-value").value);
});
setInterval(() => {
update_socket();
}, 5);
});
})
</script>
</body>