1 pub mod api_routes_http;
2 pub mod api_routes_websocket;
3 pub mod code_migrations;
4 pub mod root_span_builder;
5 pub mod scheduled_tasks;
6 #[cfg(feature = "console")]
9 use crate::{code_migrations::run_advanced_migrations, root_span_builder::QuieterRootSpanBuilder};
10 use actix_web::{middleware, web::Data, App, HttpServer, Result};
11 use doku::json::{AutoComments, CommentsStyle, Formatting, ObjectsStyle};
12 use lemmy_api_common::{
13 context::LemmyContext,
14 lemmy_db_views::structs::SiteView,
15 request::build_user_agent,
17 check_private_instance_and_federation_enabled,
18 local_site_rate_limit_to_rate_limit_config,
20 websocket::chat_server::ChatServer,
22 use lemmy_db_schema::{
23 source::secret::Secret,
24 utils::{build_db_pool, get_database_url, run_migrations},
26 use lemmy_routes::{feeds, images, nodeinfo, webfinger};
29 rate_limit::RateLimitCell,
30 settings::{structs::Settings, SETTINGS},
33 use reqwest_middleware::ClientBuilder;
34 use reqwest_retry::{policies::ExponentialBackoff, RetryTransientMiddleware};
35 use reqwest_tracing::TracingMiddleware;
36 use std::{env, sync::Arc, thread, time::Duration};
37 use tracing::subscriber::set_global_default;
38 use tracing_actix_web::TracingLogger;
39 use tracing_error::ErrorLayer;
40 use tracing_log::LogTracer;
41 use tracing_subscriber::{filter::Targets, layer::SubscriberExt, Layer, Registry};
44 /// Max timeout for http requests
45 pub(crate) const REQWEST_TIMEOUT: Duration = Duration::from_secs(10);
47 /// Placing the main function in lib.rs allows other crates to import it and embed Lemmy
48 pub async fn start_lemmy_server() -> Result<(), LemmyError> {
49 let args: Vec<String> = env::args().collect();
50 if args.len() == 2 && args[1] == "--print-config-docs" {
51 let fmt = Formatting {
52 auto_comments: AutoComments::none(),
53 comments_style: CommentsStyle {
54 separator: "#".to_owned(),
56 objects_style: ObjectsStyle {
57 surround_keys_with_quotes: false,
58 use_comma_as_separator: false,
62 println!("{}", doku::to_json_fmt_val(&fmt, &Settings::default()));
66 let settings = SETTINGS.to_owned();
68 // Set up the bb8 connection pool
69 let db_url = get_database_url(Some(&settings));
70 run_migrations(&db_url);
72 // Run the migrations from code
73 let pool = build_db_pool(&settings).await?;
74 run_advanced_migrations(&pool, &settings).await?;
76 // Initialize the secrets
77 let secret = Secret::init(&pool)
79 .expect("Couldn't initialize secrets.");
81 // Make sure the local site is set up.
82 let site_view = SiteView::read_local(&pool)
84 .expect("local site not set up");
85 let local_site = site_view.local_site;
86 let federation_enabled = local_site.federation_enabled;
88 if federation_enabled {
89 println!("federation enabled, host is {}", &settings.hostname);
92 check_private_instance_and_federation_enabled(&local_site)?;
94 // Set up the rate limiter
95 let rate_limit_config =
96 local_site_rate_limit_to_rate_limit_config(&site_view.local_site_rate_limit);
97 let rate_limit_cell = RateLimitCell::new(rate_limit_config).await;
100 "Starting http server at {}:{}",
101 settings.bind, settings.port
104 let user_agent = build_user_agent(&settings);
105 let reqwest_client = Client::builder()
106 .user_agent(user_agent.clone())
107 .timeout(REQWEST_TIMEOUT)
110 let retry_policy = ExponentialBackoff {
112 max_retry_interval: REQWEST_TIMEOUT,
113 min_retry_interval: Duration::from_millis(100),
117 let client = ClientBuilder::new(reqwest_client.clone())
118 .with(TracingMiddleware::default())
119 .with(RetryTransientMiddleware::new_with_policy(retry_policy))
122 // Pictrs cannot use the retry middleware
123 let pictrs_client = ClientBuilder::new(reqwest_client.clone())
124 .with(TracingMiddleware::default())
127 // Schedules various cleanup tasks for the DB
128 thread::spawn(move || {
129 scheduled_tasks::setup(db_url, user_agent).expect("Couldn't set up scheduled_tasks");
132 let chat_server = Arc::new(ChatServer::startup());
134 // Create Http server with websocket support
135 let settings_bind = settings.clone();
136 HttpServer::new(move || {
137 let context = LemmyContext::create(
143 rate_limit_cell.clone(),
146 .wrap(middleware::Logger::default())
147 .wrap(TracingLogger::<QuieterRootSpanBuilder>::new())
148 .app_data(Data::new(context))
149 .app_data(Data::new(rate_limit_cell.clone()))
151 .configure(|cfg| api_routes_http::config(cfg, rate_limit_cell))
153 if federation_enabled {
154 lemmy_apub::http::routes::config(cfg);
155 webfinger::config(cfg);
158 .configure(feeds::config)
159 .configure(|cfg| images::config(cfg, pictrs_client.clone(), rate_limit_cell))
160 .configure(nodeinfo::config)
162 .bind((settings_bind.bind, settings_bind.port))?
169 pub fn init_logging(opentelemetry_url: &Option<Url>) -> Result<(), LemmyError> {
172 let log_description = std::env::var("RUST_LOG").unwrap_or_else(|_| "info".into());
174 let targets = log_description
177 .parse::<Targets>()?;
179 let format_layer = tracing_subscriber::fmt::layer().with_filter(targets.clone());
181 let subscriber = Registry::default()
183 .with(ErrorLayer::default());
185 if let Some(_url) = opentelemetry_url {
186 #[cfg(feature = "console")]
187 telemetry::init_tracing(_url.as_ref(), subscriber, targets)?;
188 #[cfg(not(feature = "console"))]
189 tracing::error!("Feature `console` must be enabled for opentelemetry tracing");
191 set_global_default(subscriber)?;