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use serde_json::json;
use std::{collections::HashMap, env, str::FromStr, sync::Arc};
use uuid::Uuid;
use auth::AuthenticatedSession;
use axum::{
extract::{Extension, Path, Query},
response::{Html, Redirect},
routing::{delete, get, post},
Json, Router,
};
use protocol::{Table, UserInfo};
use protocol::bridge_engine::{GameStatePlayerView, Player};
use server::ContextExtension;
use tower_cookies::{Cookie, CookieManagerLayer, Cookies};
use tower_http::trace::TraceLayer;
use tracing::{info, log::warn};
use tracing_subscriber::{layer::SubscriberExt, util::SubscriberInitExt};
mod auth;
mod error;
mod play;
mod server;
#[cfg(debug_assertions)]
mod fake_auth;
use crate::{
auth::{OauthAuthenticator, SessionId},
server::ServerContext,
};
use crate::{
error::BridgeError,
play::{DbJournal, Journal},
};
use sqlx::{postgres::PgPoolOptions, PgPool};
use auth::Authenticator;
async fn create_default_authenticator(db_pool: &PgPool) -> Box<dyn Authenticator + Send + Sync> {
Box::new(OauthAuthenticator::from_env(db_pool.clone()).await)
}
#[cfg(debug_assertions)]
async fn create_authenticator(db_pool: &PgPool) -> Box<dyn Authenticator + Send + Sync> {
const FAKE_AUTHENTICATOR: &str = "fake";
if std::env::var("AUTHENTICATOR").unwrap_or("".to_string()) == FAKE_AUTHENTICATOR {
Box::new(fake_auth::FakeAuthenticator::new())
} else {
create_default_authenticator(db_pool).await
}
}
#[cfg(not(debug_assertions))]
async fn create_authenticator(db_pool: &PgPool) -> Box<dyn Authenticator + Send + Sync> {
create_default_authenticator(db_pool)
}
#[tokio::main]
async fn main() {
dotenv::dotenv().ok();
tracing_subscriber::registry()
.with(tracing_subscriber::EnvFilter::new(
std::env::var("RUST_LOG").unwrap_or_else(|_| "".into()),
))
.with(tracing_subscriber::fmt::layer())
.init();
info!("Opening database connection");
let db_url = env::var("DATABASE_URL").unwrap();
let db_pool: PgPool = PgPoolOptions::new()
.max_connections(10)
.connect(&db_url)
.await
.expect("db connection");
info!("Running db migrations");
sqlx::migrate!().run(&db_pool).await.expect("db migration");
let mut jnl = DbJournal::new(db_pool.clone(), Uuid::new_v4());
jnl.append(0, json!("starting server"))
.await
.expect("new object");
let bind_address = env::var("BIND_ADDRESS").unwrap();
info!("Starting server on {}", bind_address);
let app_url = env::var("APP_URL").unwrap();
#[cfg(debug_assertions)]
warn!("Running a debug build.");
let state = Arc::new(ServerContext {
app_url,
authenticator: create_authenticator(&db_pool).await,
db: db_pool,
});
let app = Router::new();
#[cfg(debug_assertions)]
let app = app
.route("/api/fake_login", get(fake_login));
let app = app
.route("/api/user/info", get(user_info))
.route("/api/table", post(create_table))
.route("/api/table", delete(leave_table))
.route("/api/table/:id", get(get_table_view))
// .route("/api/user/table", get(user_table))
.route("/api/login", get(login))
.route(auth::LOGIN_CALLBACK, get(login_callback))
.layer(CookieManagerLayer::new())
.layer(Extension(state))
.layer(TraceLayer::new_for_http());
axum::Server::bind(&bind_address.parse().unwrap())
.serve(app.into_make_service())
.await
.unwrap();
}
#[cfg(debug_assertions)]
async fn fake_login() -> Html<&'static str> {
use axum::response::Html;
Html(r#"
<!DOCTYPE html>
<html lang="en">
<body>
<p>Log in as:</p>
<ul>
<li><a href="/api/login_callback?user=alice">alice</a></li>
</ul>
</body>
</html>
"#)
}
async fn get_table_view(
_session: AuthenticatedSession,
extension: ContextExtension,
Path(id): Path<Uuid>,
) -> Result<Json<protocol::bridge_engine::GameStatePlayerView>, BridgeError> {
info!("Getting table state for {id:}");
let jnl = DbJournal::new(extension.db.clone(), id);
let table = play::Table::new_or_replay(jnl).await?;
let response =
Json(GameStatePlayerView::from_game_state(table.game(), Player::South));
info!("Response: {response:#?}");
Ok(response)
}
async fn leave_table(
session: AuthenticatedSession,
extension: ContextExtension,
) -> Result<(), BridgeError> {
sqlx::query!(
r#"
delete from table_players where player_id = $1
"#,
session.player_id
)
.execute(&extension.db)
.await?;
Ok(())
}
async fn create_table(
session: AuthenticatedSession,
extension: ContextExtension,
) -> Result<Json<Uuid>, BridgeError> {
let txn = extension.db.begin().await?;
let table_id = sqlx::query!(
r#"
insert into active_tables (id)
values ($1)
returning id
"#,
Uuid::new_v4()
)
.fetch_one(&extension.db)
.await?
.id;
sqlx::query!(
r#"
insert into table_players (active_tables_id,
player_id,
position)
values ($1, $2, 'south')
"#,
table_id,
session.player_id
)
.execute(&extension.db)
.await?;
txn.commit().await?;
Ok(Json(table_id))
}
async fn user_info(
session: Option<AuthenticatedSession>,
extension: ContextExtension,
) -> Result<Json<Option<UserInfo>>, BridgeError> {
let mut session = match session {
None => return Ok(Json(None)),
Some(s) => s,
};
Ok(Json(Some(UserInfo {
username: extension.authenticator.user_info(&mut session).await?,
table: user_table(extension, &session).await?,
})))
}
async fn user_table(
extension: ContextExtension,
session: &AuthenticatedSession,
) -> Result<Option<Table>, BridgeError> {
Ok(sqlx::query_as!(
Table,
r#"
select tables.id
from table_players players
natural join active_tables tables
where player_id = $1
"#,
session.player_id
)
.fetch_optional(&extension.db)
.await?)
}
async fn login_callback(
cookies: Cookies,
Query(params): Query<HashMap<String, String>>,
extension: ContextExtension,
) -> Result<Redirect, BridgeError> {
let cookie = cookies.get("user-id").unwrap();
let user_id: SessionId = SessionId::from_str(cookie.value())?;
let session = extension
.authenticator
.authenticate(&extension.db, user_id, params)
.await?;
info!("Logged in session: {session:?}");
Ok(Redirect::temporary(&extension.app_url))
}
async fn login(cookies: Cookies, extension: ContextExtension) -> Redirect {
let (user_id, auth_url) = extension.authenticator.get_login_url().await;
info!("Creating auth url for {user_id:?}");
let user_id = serde_json::to_string(&user_id).unwrap();
let mut cookie = Cookie::new("user-id", user_id.to_string());
cookie.set_http_only(true);
cookie.set_secure(true);
cookie.set_same_site(cookie::SameSite::Lax);
cookies.add(cookie);
Redirect::temporary(auth_url.as_str())
}
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