tetratto/crates/app/src/main.rs

mod assets;
mod image;
mod macros;
mod routes;
mod sanitize;

use assets::{init_dirs, write_assets};
use tetratto_core::model::{permissions::FinePermission, uploads::CustomEmoji};
pub use tetratto_core::*;

use axum::{Extension, Router};
use reqwest::Client;
use tera::{Tera, Value};
use tower_http::{
    trace::{self, TraceLayer},
    catch_panic::CatchPanicLayer,
};
use tower_governor::{GovernorLayer, governor::GovernorConfigBuilder};
use tracing::{Level, info};

use std::{collections::HashMap, env::var, net::SocketAddr, process::exit, sync::Arc, time::Duration};
use tokio::sync::RwLock;

pub(crate) type State = Arc<RwLock<(DataManager, Tera, Client)>>;

fn render_markdown(value: &Value, _: &HashMap<String, Value>) -> tera::Result<Value> {
    Ok(
        CustomEmoji::replace(&tetratto_shared::markdown::render_markdown(
            value.as_str().unwrap(),
        ))
        .into(),
    )
}

fn color_escape(value: &Value, _: &HashMap<String, Value>) -> tera::Result<Value> {
    Ok(sanitize::color_escape(value.as_str().unwrap()).into())
}

fn check_supporter(value: &Value, _: &HashMap<String, Value>) -> tera::Result<Value> {
    Ok(FinePermission::from_bits(value.as_u64().unwrap() as u32)
        .unwrap()
        .check(FinePermission::SUPPORTER)
        .into())
}

#[tokio::main(flavor = "multi_thread")]
async fn main() {
    tracing_subscriber::fmt()
        .with_target(false)
        .compact()
        .init();

    let config = config::Config::get_config();

    // init
    init_dirs(&config).await;
    let html_path = write_assets(&config).await;

    // governor
    let governor_config = Arc::new(
        GovernorConfigBuilder::default()
            .per_millisecond(75)
            .burst_size(32)
            .finish()
            .unwrap(),
    );

    let governor_limiter = governor_config.limiter().clone();
    let governor_interval = Duration::from_secs(60);

    std::thread::spawn(move || {
        loop {
            std::thread::sleep(governor_interval);
            tracing::info!("rate limiting storage size: {}", governor_limiter.len());
            governor_limiter.retain_recent();
        }
    });

    // ...
    let database = DataManager::new(config.clone()).await.unwrap();
    database.init().await.unwrap();

    let mut tera = match Tera::new(&format!("{html_path}/**/*")) {
        Ok(t) => t,
        Err(e) => {
            println!("{e}");
            exit(1);
        }
    };

    tera.register_filter("markdown", render_markdown);
    tera.register_filter("color", color_escape);
    tera.register_filter("has_supporter", check_supporter);

    let client = Client::new();

    let app = Router::new()
        .merge(routes::routes(&config))
        .layer(Extension(Arc::new(RwLock::new((database, tera, client)))))
        .layer(axum::extract::DefaultBodyLimit::max(
            var("BODY_LIMIT")
                .unwrap_or("8388608".to_string())
                .parse::<usize>()
                .unwrap(),
        ))
        .layer(
            TraceLayer::new_for_http()
                .make_span_with(trace::DefaultMakeSpan::new().level(Level::INFO))
                .on_response(trace::DefaultOnResponse::new().level(Level::INFO)),
        )
        .layer(CatchPanicLayer::new())
        .layer(GovernorLayer {
            config: governor_config,
        });

    let listener = tokio::net::TcpListener::bind(format!("0.0.0.0:{}", config.port))
        .await
        .unwrap();

    info!("🐇 tetratto.");
    info!("listening on http://0.0.0.0:{}", config.port);
    axum::serve(
        listener,
        app.into_make_service_with_connect_info::<SocketAddr>(),
    )
    .await
    .unwrap();
}