lemmy/src/main.rs

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#[macro_use]
extern crate diesel_migrations;
use actix::prelude::*;
use actix_web::{web::Data, *};
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use diesel::{
r2d2::{ConnectionManager, Pool},
PgConnection,
};
use doku::json::{AutoComments, Formatting};
use lemmy_api::match_websocket_operation;
use lemmy_api_common::blocking;
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use lemmy_api_crud::match_websocket_operation_crud;
use lemmy_apub_lib::activity_queue::create_activity_queue;
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use lemmy_db_schema::{get_database_url_from_env, source::secret::Secret};
use lemmy_routes::{feeds, images, nodeinfo, webfinger};
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use lemmy_server::{
api_routes,
code_migrations::run_advanced_migrations,
init_tracing,
scheduled_tasks,
};
use lemmy_utils::{
rate_limit::{rate_limiter::RateLimiter, RateLimit},
request::build_user_agent,
settings::structs::Settings,
LemmyError,
};
use lemmy_websocket::{chat_server::ChatServer, LemmyContext};
use reqwest::Client;
use std::{env, sync::Arc, thread};
use tokio::sync::Mutex;
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use tracing_actix_web::TracingLogger;
embed_migrations!();
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#[actix_web::main]
async fn main() -> Result<(), LemmyError> {
let args: Vec<String> = env::args().collect();
if args.len() == 2 && args[1] == "--print-config-docs" {
let fmt = Formatting {
auto_comments: AutoComments::none(),
..Default::default()
};
println!("{}", doku::to_json_fmt_val(&fmt, &Settings::default()));
return Ok(());
}
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init_tracing()?;
let settings = Settings::init().expect("Couldn't initialize settings.");
// Set up the r2d2 connection pool
let db_url = match get_database_url_from_env() {
Ok(url) => url,
Err(_) => settings.get_database_url(),
};
let manager = ConnectionManager::<PgConnection>::new(&db_url);
let pool = Pool::builder()
.max_size(settings.database.pool_size)
.build(manager)
.unwrap_or_else(|_| panic!("Error connecting to {}", db_url));
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// Run the migrations from code
let protocol_and_hostname = settings.get_protocol_and_hostname();
blocking(&pool, move |conn| {
embedded_migrations::run(conn)?;
run_advanced_migrations(conn, &protocol_and_hostname)?;
Ok(()) as Result<(), LemmyError>
})
.await??;
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let pool2 = pool.clone();
thread::spawn(move || {
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scheduled_tasks::setup(pool2).expect("Couldn't set up scheduled_tasks");
});
// Set up the rate limiter
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let rate_limiter = RateLimit {
rate_limiter: Arc::new(Mutex::new(RateLimiter::default())),
rate_limit_config: settings.rate_limit.to_owned().unwrap_or_default(),
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};
// Initialize the secrets
let conn = pool.get()?;
let secret = Secret::init(&conn).expect("Couldn't initialize secrets.");
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println!(
"Starting http server at {}:{}",
settings.bind, settings.port
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);
let client = Client::builder()
.user_agent(build_user_agent(&settings))
.build()?;
let activity_queue = create_activity_queue();
let chat_server = ChatServer::startup(
pool.clone(),
rate_limiter.clone(),
|c, i, o, d| Box::pin(match_websocket_operation(c, i, o, d)),
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|c, i, o, d| Box::pin(match_websocket_operation_crud(c, i, o, d)),
client.clone(),
activity_queue.clone(),
settings.clone(),
secret.clone(),
)
.start();
// Create Http server with websocket support
let settings_bind = settings.clone();
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HttpServer::new(move || {
let context = LemmyContext::create(
pool.clone(),
chat_server.to_owned(),
client.clone(),
activity_queue.to_owned(),
settings.to_owned(),
secret.to_owned(),
);
let rate_limiter = rate_limiter.clone();
App::new()
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.wrap(TracingLogger::default())
.app_data(Data::new(context))
// The routes
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.configure(|cfg| api_routes::config(cfg, &rate_limiter))
.configure(|cfg| lemmy_apub::http::routes::config(cfg, &settings))
.configure(feeds::config)
.configure(|cfg| images::config(cfg, &rate_limiter))
.configure(nodeinfo::config)
.configure(|cfg| webfinger::config(cfg, &settings))
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})
.bind((settings_bind.bind, settings_bind.port))?
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.run()
.await?;
Ok(())
}