diff options
Diffstat (limited to 'game_server/src')
-rw-r--r-- | game_server/src/backend_connection.rs | 31 | ||||
-rw-r--r-- | game_server/src/gameserver.rs | 147 | ||||
-rw-r--r-- | game_server/src/group.rs | 8 | ||||
-rw-r--r-- | game_server/src/lobby.rs | 35 | ||||
-rw-r--r-- | game_server/src/main.rs | 20 | ||||
-rw-r--r-- | game_server/src/test_group.rs | 28 | ||||
-rw-r--r-- | game_server/src/ws_test.html | 66 |
7 files changed, 335 insertions, 0 deletions
diff --git a/game_server/src/backend_connection.rs b/game_server/src/backend_connection.rs new file mode 100644 index 0000000..9307c4a --- /dev/null +++ b/game_server/src/backend_connection.rs @@ -0,0 +1,31 @@ +use reqwest::{Response, Client, Url, UrlError, Error as ReqError}; + +pub struct BackendConnection { + host: String, + client: Client, + last_response: Option<Result<Response, ReqError>> +} + +impl BackendConnection { + pub fn new(host: &str) -> Self { + BackendConnection { + host: host.to_string(), + client: Client::new(), + last_response: None + } + } + + pub fn request(&mut self, location: &str) -> Result<(), UrlError> { + Ok(self.last_response = + Some(self.client.get(Url::parse(&format!("{}{}", self.host, location))?) + .send())) + } + + pub fn get_response(&self) -> &Option<Result<Response, ReqError>> { + &self.last_response + } + + pub fn host_name<'a>(&'a self) -> &'a str { + &self.host + } +} diff --git a/game_server/src/gameserver.rs b/game_server/src/gameserver.rs new file mode 100644 index 0000000..9334a27 --- /dev/null +++ b/game_server/src/gameserver.rs @@ -0,0 +1,147 @@ +use websocket::{OwnedMessage, + sync::Server, + client::sync::Client, + server::{NoTlsAcceptor, InvalidConnection, + sync::AcceptResult}}; +use std::net::{SocketAddr, ToSocketAddrs, TcpStream}; +use std::sync::mpsc; +use std::sync::mpsc::{Sender, Receiver}; +use super::lobby::Lobby; +use super::backend_connection::BackendConnection; + +const PROTOCOL: &str = "tuesday"; + +type Token = u32; + +#[derive(Debug)] +pub enum GameServerError { + BindError(std::io::Error), + HandshakeRequestError, + InvalidProtocolError, + AcceptError(std::io::Error) +} + +pub struct GameServer { + addr: SocketAddr, + lobby: Lobby, + backend: BackendConnection, +} + +pub struct GameClient { + addr: SocketAddr, + client: Client<TcpStream>, +} + +impl GameClient { + fn from_raw(client: Client<TcpStream>) -> Result<Self, ()> { + let addr = client.peer_addr().map_err(|_| ())?; + info!("got a client connection from: {}", addr); + Ok(GameClient { + addr, + client, + }) + } + + fn require_token(&mut self) -> Option<Token> { + let message = self.client + .recv_message() + .ok()?; + if let OwnedMessage::Text(text) = message { + text.parse::<Token>().ok() + } else { + None + } + } +} + +type ClientConnection = Result<GameClient, GameServerError>; + +impl GameServer { + pub fn new<T: ToSocketAddrs>(addr: T) -> Self { + let addr = addr.to_socket_addrs().unwrap().next().unwrap(); + debug!("ws address: {}", addr); + info!("create lobby"); + let lobby = Lobby::new(); + let backend = BackendConnection::new("https://kobert.dev"); + info!("got a C# backend connection"); + GameServer { + addr, + lobby, + backend, + } + } + + pub fn run(&self) -> Result<(), GameServerError> { + let reader = self.read_clients(); + loop { + let mut connection = reader.recv().unwrap()?; + self.add_client(connection); + } + Ok(()) + } + + fn add_client(&self, mut client: GameClient) { + std::thread::spawn(move || { + println!("Token: {:?}", client.require_token()); + loop { std::thread::sleep(std::time::Duration::from_millis(100)); } + }); + } + + fn read_clients(&self) -> Receiver<ClientConnection> { + let (s, r): (Sender<ClientConnection>, Receiver<ClientConnection>) + = mpsc::channel(); + let addr = self.addr; + std::thread::spawn(move || { + let result = Self::handle_requests(addr, &s).or_else(|e| s.send(Err(e))); + }); + r + } + + fn handle_requests(addr: SocketAddr, s: &Sender<ClientConnection>) -> Result<(), GameServerError> { + let server = match Server::<NoTlsAcceptor>::bind(addr) { + Ok(v) => v, + Err(e) => { + error!("websocket binding error"); + Err(GameServerError::BindError(e))? + }, + }; + info!("webserver is being launched"); + for req in server { + s.send(Ok(Self::handle_request(req)?)).unwrap(); + } + info!("webserver is being shut down"); + Ok(()) + } + + fn handle_request(req: AcceptResult<TcpStream>) -> ClientConnection { + match req { + Ok(req) => { + if !req.protocols().contains(&PROTOCOL.to_string()) { + warn!("a client tried to connect without {} protocol", PROTOCOL); + req.reject().unwrap(); + Err(GameServerError::InvalidProtocolError) + } else { + match req.use_protocol(PROTOCOL).accept() { + Ok(client) => { + match GameClient::from_raw(client) { + Ok(client) => Ok(client), + Err(_) => { + error!("could not create a client"); + Err(GameServerError::HandshakeRequestError) + } + } + }, + Err((_, e)) => { + warn!("client handshake failed"); + Err(GameServerError::AcceptError(e)) + } + } + } + }, + Err(e) => { + warn!("invalid client request"); + Err(GameServerError::HandshakeRequestError) + } + } + } +} diff --git a/game_server/src/group.rs b/game_server/src/group.rs new file mode 100644 index 0000000..55e4fbf --- /dev/null +++ b/game_server/src/group.rs @@ -0,0 +1,8 @@ +pub type GroupId = u32; + +pub trait Group { + fn id(&self) -> GroupId; + fn name(&self) -> String; + + fn run(&self); +} diff --git a/game_server/src/lobby.rs b/game_server/src/lobby.rs new file mode 100644 index 0000000..fe3bdee --- /dev/null +++ b/game_server/src/lobby.rs @@ -0,0 +1,35 @@ +use std::collections::HashMap; + +use super::group::{Group, GroupId}; + +pub struct Lobby { + groups: HashMap<GroupId, Box<Group>>, +} + +impl Lobby { + pub fn new() -> Lobby { + Self { + groups: HashMap::new(), + } + } + + pub fn add_group(&mut self, group: Box<Group>) { + self.groups.insert(group.id(), group); + } + + pub fn iter<'a>(&'a self) -> GroupIterator<'a> { + GroupIterator { groups: self.groups.values() } + } +} + +pub struct GroupIterator<'a> { + groups: std::collections::hash_map::Values<'a, GroupId, Box<Group>> +} + +impl<'a> Iterator for GroupIterator<'a> { + type Item = &'a Box<Group>; + + fn next(&mut self) -> Option<Self::Item> { + self.groups.next() + } +} diff --git a/game_server/src/main.rs b/game_server/src/main.rs new file mode 100644 index 0000000..e129283 --- /dev/null +++ b/game_server/src/main.rs @@ -0,0 +1,20 @@ +mod group; +mod test_group; +mod lobby; +mod gameserver; +mod backend_connection; + +#[macro_use] extern crate log; +use pretty_env_logger; + +use backend_connection::BackendConnection; + +fn main() { + pretty_env_logger::init(); + + let addr = ("127.0.0.1", 5001); + info!("create game server on {:?}", addr); + let gameserver = gameserver::GameServer::new(addr); + gameserver.run().unwrap(); + +} diff --git a/game_server/src/test_group.rs b/game_server/src/test_group.rs new file mode 100644 index 0000000..bd570e3 --- /dev/null +++ b/game_server/src/test_group.rs @@ -0,0 +1,28 @@ +use super::group::{Group, GroupId}; + +pub struct TestGroup { + id: GroupId, + name: String, +} + +impl Group for TestGroup { + fn id(&self) -> GroupId { + self.id + } + + fn name(&self) -> String { + self.name.clone() + } + + fn run(&self) { + let id = self.id; + let name = self.name.to_owned(); + std::thread::spawn(move || /*loop { println!("> group nr.{} wishes you: '{}'", id, name) }*/()); + } +} + +impl TestGroup { + pub fn new(id: GroupId, name: String) -> Self { + TestGroup { id, name } + } +} diff --git a/game_server/src/ws_test.html b/game_server/src/ws_test.html new file mode 100644 index 0000000..ea259b7 --- /dev/null +++ b/game_server/src/ws_test.html @@ -0,0 +1,66 @@ +<!doctype html> +<html> + <head> + <title>WS Test</title> + <style> +.b { + border-bottom: 1px solid black; +} + </style> + </head> + <body style='background: black; color: white'> + <div id='cons'>connected</div><br> + <button onclick='test_connection()'>Launch</button><br> + <span>Server address: </span><input id='addr'></input> + <div id='chat' style='background: rgb(20, 20, 20); padding-left: 20px; margin: 40px' /> + </body> + <script> +function get_addr() { + return document.getElementById('addr').value; +} + +function test_connection() { + let a = 'ws://' + get_addr(); + add_text('create a new connection at "' + a + '"'); + const ws = new WebSocket(a, 'tuesday'); + ws.addEventListener('open', function (event) { + add_text('connection established'); + toggle_connected(true); + ws.send('1230123'); + }); + ws.addEventListener('error', function (event) { + add_text('ws error occured: "' + event + '"'); + toggle_connected(false); + }); + ws.addEventListener('close', function (event) { + add_text('ws is closed now'); + toggle_connected(false); + }); + ws.addEventListener('message', function (event) { + add_text('got ws message: ' + event.data); + }); +} + +function add_text(text, color='white') { + let c = document.getElementById('chat'); + let n = document.createElement('span'); + n.setAttribute('class', 'b'); + n.style = 'color: ' + color; + n.textContent = (new Date()).toTimeString().substring(0, 8) + '|> '+ text; + c.appendChild(n); + c.appendChild(document.createElement('br')); +} +function toggle_connected(con) { + let c = document.getElementById('cons'); + if (con) { + c.style = 'background: green' + c.textContent = 'connected'; + } else { + c.style = 'background: red' + c.textContent = 'not connected'; + } +} +toggle_connected(false); +add_text("JS loaded"); + </script> +</html> |