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   REQWEST_TIMEOUT,
  30 };
  31 use lemmy_websocket::{chat_server::ChatServer, LemmyContext};
  32 use parking_lot::Mutex;
  33 use reqwest::Client;
  34 use reqwest_middleware::ClientBuilder;
  35 use reqwest_tracing::TracingMiddleware;
  36 use std::{env, sync::Arc, thread};
  37 use tracing_actix_web::TracingLogger;
  38
  39 embed_migrations!();
  40
  41 #[actix_web::main]
  42 async fn main() -> Result<(), LemmyError> {
  43   let args: Vec<String> = env::args().collect();
  44   if args.len() == 2 && args[1] == "--print-config-docs" {
  45     let fmt = Formatting {
  46       auto_comments: AutoComments::none(),
  47       ..Default::default()
  48     };
  49     println!("{}", doku::to_json_fmt_val(&fmt, &Settings::default()));
  50     return Ok(());
  51   }
  52
  53   let settings = Settings::init().expect("Couldn't initialize settings.");
  54
  55   init_tracing(settings.opentelemetry_url.as_deref())?;
  56
  57   // Set up the r2d2 connection pool
  58   let db_url = match get_database_url_from_env() {
  59     Ok(url) => url,
  60     Err(_) => settings.get_database_url(),
  61   };
  62   let manager = ConnectionManager::<PgConnection>::new(&db_url);
  63   let pool = Pool::builder()
  64     .max_size(settings.database.pool_size)
  65     .build(manager)
  66     .unwrap_or_else(|_| panic!("Error connecting to {}", db_url));
  67
  68   // Run the migrations from code
  69   let protocol_and_hostname = settings.get_protocol_and_hostname();
  70   blocking(&pool, move |conn| {
  71     embedded_migrations::run(conn)?;
  72     run_advanced_migrations(conn, &protocol_and_hostname)?;
  73     Ok(()) as Result<(), LemmyError>
  74   })
  75   .await??;
  76
  77   // Schedules various cleanup tasks for the DB
  78   let pool2 = pool.clone();
  79   thread::spawn(move || {
  80     scheduled_tasks::setup(pool2).expect("Couldn't set up scheduled_tasks");
  81   });
  82
  83   // Set up the rate limiter
  84   let rate_limiter = RateLimit {
  85     rate_limiter: Arc::new(Mutex::new(RateLimiter::default())),
  86     rate_limit_config: settings.rate_limit.to_owned().unwrap_or_default(),
  87   };
  88
  89   // Initialize the secrets
  90   let conn = pool.get()?;
  91   let secret = Secret::init(&conn).expect("Couldn't initialize secrets.");
  92
  93   println!(
  94     "Starting http server at {}:{}",
  95     settings.bind, settings.port
  96   );
  97
  98   let client = Client::builder()
  99     .user_agent(build_user_agent(&settings))
 100     .timeout(REQWEST_TIMEOUT)
 101     .build()?;
 102
 103   let client = ClientBuilder::new(client).with(TracingMiddleware).build();
 104
 105   let queue_manager = create_activity_queue(client.clone(), settings.federation.worker_count);
 106
 107   let activity_queue = queue_manager.queue_handle().clone();
 108
 109   check_private_instance_and_federation_enabled(&pool, &settings).await?;
 110
 111   let chat_server = ChatServer::startup(
 112     pool.clone(),
 113     rate_limiter.clone(),
 114     |c, i, o, d| Box::pin(match_websocket_operation(c, i, o, d)),
 115     |c, i, o, d| Box::pin(match_websocket_operation_crud(c, i, o, d)),
 116     client.clone(),
 117     activity_queue.clone(),
 118     settings.clone(),
 119     secret.clone(),
 120   )
 121   .start();
 122
 123   // Create Http server with websocket support
 124   let settings_bind = settings.clone();
 125   HttpServer::new(move || {
 126     let context = LemmyContext::create(
 127       pool.clone(),
 128       chat_server.to_owned(),
 129       client.clone(),
 130       activity_queue.to_owned(),
 131       settings.to_owned(),
 132       secret.to_owned(),
 133     );
 134     let rate_limiter = rate_limiter.clone();
 135     App::new()
 136       .wrap(actix_web::middleware::Logger::default())
 137       .wrap(TracingLogger::<QuieterRootSpanBuilder>::new())
 138       .app_data(Data::new(context))
 139       .app_data(Data::new(rate_limiter.clone()))
 140       // The routes
 141       .configure(|cfg| api_routes::config(cfg, &rate_limiter))
 142       .configure(|cfg| lemmy_apub::http::routes::config(cfg, &settings))
 143       .configure(feeds::config)
 144       .configure(|cfg| images::config(cfg, client.clone(), &rate_limiter))
 145       .configure(nodeinfo::config)
 146       .configure(|cfg| webfinger::config(cfg, &settings))
 147   })
 148   .bind((settings_bind.bind, settings_bind.port))?
 149   .run()
 150   .await?;
 151
 152   drop(queue_manager);
 153
 154   Ok(())
 155 }