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|
use crate::types::*;
use std::{
sync::Arc,
net::SocketAddr,
};
use tokio::sync::RwLock;
use futures_util::{SinkExt, StreamExt, TryStreamExt, stream::SplitStream};
use warp::ws::{ WebSocket, Message };
use ammonia;
pub async fn lobby(socket: WebSocket, addr: SocketAddr, room: Arc<RwLock<Room>>) {
let (tx, mut rx) = tokio::sync::mpsc::unbounded_channel();
// server <-> client comms
let (mut outgoing, mut incoming) = socket.split();
println!("Incoming TCP connection from: {}", addr);
let mut registered = false;
while !registered {
match incoming.try_next().await {
Ok(cmd) => {
if let Some(cmd) = cmd {
// if it ain't text we can't handle it
if !cmd.is_text() { return; }
let cmd = cmd.to_str().to_owned().unwrap();
let mut fields = cmd.split(" ");
if fields.next() == Some("register") {
let mut all_fields = fields.collect::<Vec<&str>>();
let clr = all_fields.pop().expect("register without color").chars().filter(|c| c.is_digit(16) || *c == '#').collect::<String>();
let name = {
let def = "anon".to_string();
if all_fields.is_empty() { def }
else {
let n = ammonia::clean(&all_fields.join(" "));
if n.is_empty() { def } else { n }
}
};
println!("registered \"{name}@{addr}\"");
let uid = {
// new scope cuz paranoid bout deadlocks
let conn = Conn { addr, tx: tx.clone() };
room.write().await.players.insert_conn(conn, name.clone(), clr).await
};
tx.send(Message::text(format!("regack {} {uid} {}", name.replace(" ", " "), room.read().await.board_conf))).expect("couldn't send register ack");
if let Err(e) = room.read().await.cmd_stream.send(MetaMove::Dump) {
println!("couldn't request game dump in behalf of {addr}: {e}");
}
registered = true;
}
}
},
Err(e) => {
println!("error reading socket {addr}: {e}");
}
}
}
let drive_game = handle_room(incoming, addr, room.clone());
let send_to_client = async move {
while let Some(m) = rx.recv().await {
if let Err(e) = outgoing.send(m).await {
println!("something went bad lol: {e}");
}
}
};
tokio::select! {
_ = drive_game => (),
_ = send_to_client => { println!("anomalous close for {addr}"); }
};
let room_lock = room.read().await;
let mut players = room_lock.players.write().await;
if let Some(disconn_p) = players.remove(&addr) {
for p in players.values() {
if let Err(e) = p.conn.tx.send(Message::text(format!("logoff {}", disconn_p.uid))) {
println!("couldn't deliver logoff info to {}: {}", p, e);
}
}
println!("{disconn_p} disconnected");
} else {
println!("{addr} disconnected");
}
}
pub async fn handle_room(mut incoming: SplitStream<WebSocket>, addr: SocketAddr, room: Arc<RwLock<Room>>) {
let (players, cmd_tx) = {
let room = room.read().await;
(room.players.clone(), room.cmd_stream.clone())
};
while let Ok(cmd) = incoming.try_next().await {
if let Some(cmd) = cmd {
// if it ain't text we can't handle it
if !cmd.is_text() { continue; }
let cmd = cmd.to_str().to_owned().unwrap();
let mut fields = cmd.split(" ");
let parse_pos = |mut fields: std::str::Split<&str>| -> Option<(usize, usize)> {
let x = fields.next().and_then(|xstr| xstr.parse::<usize>().ok());
let y = fields.next().and_then(|ystr| ystr.parse::<usize>().ok());
x.zip(y)
};
if let Some(cmd_name) = fields.next() {
use crate::minesweeper::{Move,MoveType};
let me_lock = players.read().await;
let me = me_lock.get(&addr).expect("player not found");
match cmd_name {
"pos" => {
match parse_pos(fields) {
Some(pos) => {
drop(me);
drop(me_lock); // So the read lock isn't held
let (name, clr, uid) = {
let mut players = players.write().await;
let mut entry = players.get_mut(&addr).unwrap();
entry.position = pos.clone();
(entry.name.clone(), entry.clr.clone(), entry.uid)
};
let sanitized_name = name.replace(" ", " ").to_string();
{
let players = players.read().await;
for peer_tx in players.iter().filter(|(s, _)| **s != addr).map(|(_,p)| &p.conn.tx) {
let r = peer_tx.send(Message::text(format!("pos {uid} {sanitized_name} {} {} {}", clr, pos.0, pos.1)));
if let Err(e) = r {
println!("error sending pos update: {e}");
}
}
}
},
None => {
println!("bad position update from {}", me);
},
}
},
"reveal" => {
match parse_pos(fields) {
Some(pos) => {
println!("{cmd} from {me}");
if let Err(e) = cmd_tx.send(MetaMove::Move(Move { t: MoveType::Reveal, pos }, addr)) {
println!("couldn't process {me}'s reveal command: {e}");
};
},
None => {
println!("bad reveal from {me}");
}
}
},
"flag" => {
match parse_pos(fields) {
Some(pos) => {
println!("{cmd} from {me}");
if let Err(e) = cmd_tx.send(MetaMove::Move(Move { t: MoveType::ToggleFlag, pos }, addr)) {
println!("couldn't process {me}'s flag command: {e}");
};
},
None => {
println!("bad flag from {me}");
}
}
},
"reset" => {
println!("{cmd} from {me}");
if let Err(e) = cmd_tx.send(MetaMove::Reset) {
println!("couldn't request game dump in behalf of {me}: {e}");
}
},
e => println!("unknown command {e:?} from {me}, \"{cmd}\""),
}
}
} else {
println!("reached end of stream for {addr}");
break;
}
}
}
|
