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.get(1) == Some(&"--print-config-docs".to_string()) {
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 // Run the DB migrations
69 let db_url = get_database_url(Some(&settings));
70 run_migrations(&db_url);
72 // Set up the connection pool
73 let pool = build_db_pool(&settings).await?;
75 // Run the Code-required migrations
76 run_advanced_migrations(&pool, &settings).await?;
78 // Initialize the secrets
79 let secret = Secret::init(&pool)
81 .expect("Couldn't initialize secrets.");
83 // Make sure the local site is set up.
84 let site_view = SiteView::read_local(&pool)
86 .expect("local site not set up");
87 let local_site = site_view.local_site;
88 let federation_enabled = local_site.federation_enabled;
90 if federation_enabled {
91 println!("federation enabled, host is {}", &settings.hostname);
94 check_private_instance_and_federation_enabled(&local_site)?;
96 // Set up the rate limiter
97 let rate_limit_config =
98 local_site_rate_limit_to_rate_limit_config(&site_view.local_site_rate_limit);
99 let rate_limit_cell = RateLimitCell::new(rate_limit_config).await;
102 "Starting http server at {}:{}",
103 settings.bind, settings.port
106 let user_agent = build_user_agent(&settings);
107 let reqwest_client = Client::builder()
108 .user_agent(user_agent.clone())
109 .timeout(REQWEST_TIMEOUT)
112 let retry_policy = ExponentialBackoff {
114 max_retry_interval: REQWEST_TIMEOUT,
115 min_retry_interval: Duration::from_millis(100),
119 let client = ClientBuilder::new(reqwest_client.clone())
120 .with(TracingMiddleware::default())
121 .with(RetryTransientMiddleware::new_with_policy(retry_policy))
124 // Pictrs cannot use the retry middleware
125 let pictrs_client = ClientBuilder::new(reqwest_client.clone())
126 .with(TracingMiddleware::default())
129 // Schedules various cleanup tasks for the DB
130 thread::spawn(move || {
131 scheduled_tasks::setup(db_url, user_agent).expect("Couldn't set up scheduled_tasks");
134 let chat_server = Arc::new(ChatServer::startup());
136 // Create Http server with websocket support
137 let settings_bind = settings.clone();
138 HttpServer::new(move || {
139 let context = LemmyContext::create(
145 rate_limit_cell.clone(),
148 .wrap(middleware::Logger::default())
149 .wrap(TracingLogger::<QuieterRootSpanBuilder>::new())
150 .app_data(Data::new(context))
151 .app_data(Data::new(rate_limit_cell.clone()))
153 .configure(|cfg| api_routes_http::config(cfg, rate_limit_cell))
155 if federation_enabled {
156 lemmy_apub::http::routes::config(cfg);
157 webfinger::config(cfg);
160 .configure(feeds::config)
161 .configure(|cfg| images::config(cfg, pictrs_client.clone(), rate_limit_cell))
162 .configure(nodeinfo::config)
164 .bind((settings_bind.bind, settings_bind.port))?
171 pub fn init_logging(opentelemetry_url: &Option<Url>) -> Result<(), LemmyError> {
174 let log_description = std::env::var("RUST_LOG").unwrap_or_else(|_| "info".into());
176 let targets = log_description
179 .parse::<Targets>()?;
181 let format_layer = tracing_subscriber::fmt::layer().with_filter(targets.clone());
183 let subscriber = Registry::default()
185 .with(ErrorLayer::default());
187 if let Some(_url) = opentelemetry_url {
188 #[cfg(feature = "console")]
189 telemetry::init_tracing(_url.as_ref(), subscriber, targets)?;
190 #[cfg(not(feature = "console"))]
191 tracing::error!("Feature `console` must be enabled for opentelemetry tracing");
193 set_global_default(subscriber)?;