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|
use axum::extract::connect_info;
use axum::http::Request;
use axum::routing::{get, post};
use axum::Router;
use sqlx::postgres::PgPoolOptions;
use sqlx::{Pool, Postgres};
use hyper::body::Incoming;
use hyper_util::rt::{TokioExecutor, TokioIo};
use hyper_util::server;
use info_utils::prelude::*;
use serde::Deserialize;
use sqids::Sqids;
use tower::Service;
use url::Url;
use std::env;
use std::sync::Arc;
pub mod get;
pub mod post;
#[derive(Clone)]
pub struct ServerState {
pub db_pool: Pool<Postgres>,
pub host: String,
pub sqids: Sqids,
pub main_page_redirect: Option<Url>,
pub behind_proxy: bool,
pub uses_https: bool,
}
#[derive(Debug, Clone, sqlx::FromRow, PartialEq, Eq)]
pub struct UrlRow {
pub index: i64,
pub id: String,
pub url: String,
pub custom_id: bool,
}
#[derive(Debug, Clone, sqlx::FromRow, PartialEq, Eq)]
pub struct TrackingRow {
pub timestamp: chrono::DateTime<chrono::Utc>,
pub id: String,
pub ip: Option<String>,
pub referrer: Option<String>,
pub user_agent: Option<String>,
}
#[derive(Deserialize, Debug, Clone)]
pub struct CreateForm {
pub id: String,
pub url: url::Url,
}
#[derive(Clone)]
#[allow(dead_code)]
pub struct UdsConnectInfo {
pub peer_addr: Arc<tokio::net::unix::SocketAddr>,
pub peer_cred: tokio::net::unix::UCred,
}
impl connect_info::Connected<&tokio::net::UnixStream> for UdsConnectInfo {
fn connect_info(target: &tokio::net::UnixStream) -> Self {
let peer_addr = target.peer_addr().unwrap();
let peer_cred = target.peer_cred().unwrap();
Self {
peer_addr: Arc::new(peer_addr),
peer_cred,
}
}
}
#[tokio::main]
async fn main() -> eyre::Result<()> {
color_eyre::install()?;
let db_pool = init_db().await?;
let host = env::var("CHELA_HOST").unwrap_or("localhost".to_string());
let alphabet = env::var("CHELA_ALPHABET")
.unwrap_or("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ".to_string());
let sqids = Sqids::builder()
.alphabet(alphabet.chars().collect())
.blocklist(["create".to_string(), "tracking".to_string()].into())
.build()?;
let main_page_redirect = env::var("CHELA_MAIN_PAGE_REDIRECT").unwrap_or_default();
let behind_proxy = env::var("CHELA_BEHIND_PROXY").is_ok();
let uses_https = env::var("CHELA_USES_HTTPS").is_ok();
let server_state = ServerState {
db_pool,
host,
sqids,
main_page_redirect: Url::parse(&main_page_redirect).ok(),
behind_proxy,
uses_https
};
serve(server_state).await?;
Ok(())
}
async fn serve(state: ServerState) -> eyre::Result<()> {
let unix_socket = env::var("CHELA_UNIX_SOCKET").unwrap_or_default();
if unix_socket.is_empty() {
let router = Router::new()
.route("/", get(get::index))
.route("/create", get(get::create_id))
.route("/tracking", get(get::tracking))
.route("/tracking/:id", get(get::tracking_id))
.route("/:id", get(get::id))
.route("/", post(post::create_link))
.layer(axum::Extension(state));
let address = env::var("CHELA_LISTEN_ADDRESS").unwrap_or("0.0.0.0".to_string());
let port = 3000;
let listener = tokio::net::TcpListener::bind(format!("{address}:{port}")).await?;
log!("Listening at {}:{}", address, port);
axum::serve(
listener,
router.into_make_service_with_connect_info::<std::net::SocketAddr>(),
)
.await?;
} else {
let router = Router::new()
.route("/", get(get::index))
.route("/create", get(get::create_id))
.route("/tracking", get(get::tracking))
.route("/tracking/:id", get(get::tracking_id))
.route("/:id", get(get::id_unix))
.route("/", post(post::create_link))
.layer(axum::Extension(state));
let unix_socket_path = std::path::Path::new(&unix_socket);
if unix_socket_path.exists() {
tokio::fs::remove_file(unix_socket_path).await?;
}
let listener = tokio::net::UnixListener::bind(unix_socket_path)?;
log!("Listening via Unix socket at {}", unix_socket);
tokio::spawn(async move {
let mut service = router.into_make_service_with_connect_info::<UdsConnectInfo>();
loop {
let (socket, _remote_addr) = listener.accept().await.unwrap();
let tower_service = match service.call(&socket).await {
Ok(value) => value,
Err(err) => match err {},
};
tokio::spawn(async move {
let socket = TokioIo::new(socket);
let hyper_service =
hyper::service::service_fn(move |request: Request<Incoming>| {
tower_service.clone().call(request)
});
if let Err(err) = server::conn::auto::Builder::new(TokioExecutor::new())
.serve_connection_with_upgrades(socket, hyper_service)
.await
{
warn!("Failed to serve connection: {}", err);
}
});
}
})
.await?;
}
Ok(())
}
async fn init_db() -> eyre::Result<Pool<Postgres>> {
let db_pool = PgPoolOptions::new()
.max_connections(15)
.connect(
env::var("DATABASE_URL")
.expect("DATABASE_URL must be set")
.as_str(),
)
.await?;
log!("Successfully connected to database");
sqlx::query("CREATE SCHEMA IF NOT EXISTS chela")
.execute(&db_pool)
.await?;
log!("Created schema chela");
sqlx::query(
"
CREATE TABLE IF NOT EXISTS chela.urls (
index BIGSERIAL PRIMARY KEY,
id TEXT NOT NULL UNIQUE,
url TEXT NOT NULL,
custom_id BOOLEAN NOT NULL
)
",
)
.execute(&db_pool)
.await?;
log!("Created table chela.urls");
sqlx::query(
"
CREATE TABLE IF NOT EXISTS chela.tracking (
timestamp TIMESTAMPTZ DEFAULT CURRENT_TIMESTAMP,
id TEXT NOT NULL,
ip TEXT,
referrer TEXT,
user_agent TEXT
)
",
)
.execute(&db_pool)
.await?;
log!("Created table chela.tracking");
Ok(db_pool)
}
|
