src/main.rs

   1 #[macro_use]
   2 extern crate diesel_migrations;
   3
   4 use actix::prelude::*;
   5 use actix_web::{web::Data, *};
   6 use diesel::{
   7   r2d2::{ConnectionManager, Pool},
   8   PgConnection,
   9 };
  10 use doku::json::{AutoComments, Formatting};
  11 use lemmy_api::match_websocket_operation;
  12 use lemmy_api_common::{blocking, check_private_instance_and_federation_enabled};
  13 use lemmy_api_crud::match_websocket_operation_crud;
  14 use lemmy_apub_lib::activity_queue::create_activity_queue;
  15 use lemmy_db_schema::{get_database_url_from_env, source::secret::Secret};
  16 use lemmy_routes::{feeds, images, nodeinfo, webfinger};
  17 use lemmy_server::{
  18   api_routes,
  19   code_migrations::run_advanced_migrations,
  20   init_tracing,
  21   root_span_builder::QuieterRootSpanBuilder,
  22   scheduled_tasks,
  23 };
  24 use lemmy_utils::{
  25   rate_limit::{rate_limiter::RateLimiter, RateLimit},
  26   request::build_user_agent,
  27   settings::structs::Settings,
  28   LemmyError,
  29 };
  30 use lemmy_websocket::{chat_server::ChatServer, LemmyContext};
  31 use reqwest::Client;
  32 use reqwest_middleware::ClientBuilder;
  33 use reqwest_tracing::TracingMiddleware;
  34 use std::{env, sync::Arc, thread, time::Duration};
  35 use tokio::sync::Mutex;
  36 use tracing_actix_web::TracingLogger;
  37
  38 embed_migrations!();
  39
  40 #[actix_web::main]
  41 async fn main() -> Result<(), LemmyError> {
  42   let args: Vec<String> = env::args().collect();
  43   if args.len() == 2 && args[1] == "--print-config-docs" {
  44     let fmt = Formatting {
  45       auto_comments: AutoComments::none(),
  46       ..Default::default()
  47     };
  48     println!("{}", doku::to_json_fmt_val(&fmt, &Settings::default()));
  49     return Ok(());
  50   }
  51
  52   let settings = Settings::init().expect("Couldn't initialize settings.");
  53
  54   init_tracing(settings.opentelemetry_url.as_deref())?;
  55
  56   // Set up the r2d2 connection pool
  57   let db_url = match get_database_url_from_env() {
  58     Ok(url) => url,
  59     Err(_) => settings.get_database_url(),
  60   };
  61   let manager = ConnectionManager::<PgConnection>::new(&db_url);
  62   let pool = Pool::builder()
  63     .max_size(settings.database.pool_size)
  64     .build(manager)
  65     .unwrap_or_else(|_| panic!("Error connecting to {}", db_url));
  66
  67   // Run the migrations from code
  68   let protocol_and_hostname = settings.get_protocol_and_hostname();
  69   blocking(&pool, move |conn| {
  70     embedded_migrations::run(conn)?;
  71     run_advanced_migrations(conn, &protocol_and_hostname)?;
  72     Ok(()) as Result<(), LemmyError>
  73   })
  74   .await??;
  75
  76   // Schedules various cleanup tasks for the DB
  77   let pool2 = pool.clone();
  78   thread::spawn(move || {
  79     scheduled_tasks::setup(pool2).expect("Couldn't set up scheduled_tasks");
  80   });
  81
  82   // Set up the rate limiter
  83   let rate_limiter = RateLimit {
  84     rate_limiter: Arc::new(Mutex::new(RateLimiter::default())),
  85     rate_limit_config: settings.rate_limit.to_owned().unwrap_or_default(),
  86   };
  87
  88   // Initialize the secrets
  89   let conn = pool.get()?;
  90   let secret = Secret::init(&conn).expect("Couldn't initialize secrets.");
  91
  92   println!(
  93     "Starting http server at {}:{}",
  94     settings.bind, settings.port
  95   );
  96
  97   let client = Client::builder()
  98     .user_agent(build_user_agent(&settings))
  99     .timeout(Duration::from_secs(10))
 100     .build()?;
 101
 102   let client = ClientBuilder::new(client).with(TracingMiddleware).build();
 103
 104   let queue_manager = create_activity_queue(client.clone(), settings.federation.worker_count);
 105
 106   let activity_queue = queue_manager.queue_handle().clone();
 107
 108   check_private_instance_and_federation_enabled(&pool, &settings).await?;
 109
 110   let chat_server = ChatServer::startup(
 111     pool.clone(),
 112     rate_limiter.clone(),
 113     |c, i, o, d| Box::pin(match_websocket_operation(c, i, o, d)),
 114     |c, i, o, d| Box::pin(match_websocket_operation_crud(c, i, o, d)),
 115     client.clone(),
 116     activity_queue.clone(),
 117     settings.clone(),
 118     secret.clone(),
 119   )
 120   .start();
 121
 122   // Create Http server with websocket support
 123   let settings_bind = settings.clone();
 124   HttpServer::new(move || {
 125     let context = LemmyContext::create(
 126       pool.clone(),
 127       chat_server.to_owned(),
 128       client.clone(),
 129       activity_queue.to_owned(),
 130       settings.to_owned(),
 131       secret.to_owned(),
 132     );
 133     let rate_limiter = rate_limiter.clone();
 134     App::new()
 135       .wrap(actix_web::middleware::Logger::default())
 136       .wrap(TracingLogger::<QuieterRootSpanBuilder>::new())
 137       .app_data(Data::new(context))
 138       // The routes
 139       .configure(|cfg| api_routes::config(cfg, &rate_limiter))
 140       .configure(|cfg| lemmy_apub::http::routes::config(cfg, &settings))
 141       .configure(feeds::config)
 142       .configure(|cfg| images::config(cfg, client.clone(), &rate_limiter))
 143       .configure(nodeinfo::config)
 144       .configure(|cfg| webfinger::config(cfg, &settings))
 145   })
 146   .bind((settings_bind.bind, settings_bind.port))?
 147   .run()
 148   .await?;
 149
 150   drop(queue_manager);
 151
 152   Ok(())
 153 }