Hexbear is the engine that powers Chapochat. It is a customization of the Lemmy project.
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#[macro_use]
extern crate diesel_migrations;
#[macro_use]
pub extern crate lazy_static;
use actix::prelude::*;
use actix_cors::Cors;
use actix_web::{*, body::Body, dev::{Service, ServiceRequest, ServiceResponse}, http::{
header::{CACHE_CONTROL, CONTENT_TYPE},
HeaderValue,
}, web::Data};
use diesel::{
r2d2::{ConnectionManager, Pool},
PgConnection,
};
use futures::Future;
use lemmy_db::get_database_url_from_env;
use lemmy_rate_limit::{rate_limiter::RateLimiter, RateLimit};
use lemmy_server::{
apub::activity_queue::create_activity_queue, blocking, routes::*, twofactor::CodeCacheHandler,
websocket::chat_server::ChatServer, LemmyContext,
};
use lemmy_utils::{
settings::Settings, LemmyError, CACHE_CONTROL_APPLICATION_REGEX, CACHE_CONTROL_IMAGE_REGEX,
};
use reqwest::Client;
use std::sync::{Arc, Mutex};
lazy_static! {
// static ref CACHE_CONTROL_VALUE: String = format!("public, max-age={}", 365 * 24 * 60 * 60);
// Test out 1 hour here, this is breaking some things
static ref CACHE_CONTROL_IMAGE_VALUE: String = format!("public, max-age={}", 12 * 60 * 60);
static ref CACHE_CONTROL_APPLICATION_VALUE: String = format!("public, no-cache, max-age={}", 0);
}
embed_migrations!();
#[actix_rt::main]
async fn main() -> Result<(), LemmyError> {
env_logger::init();
let settings = Settings::get();
// 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));
// Run the migrations from code
blocking(&pool, move |conn| {
embedded_migrations::run(conn)?;
// uncomment if there's an advanced migration we need to run
// run_advanced_migrations(conn)?;
Ok(()) as Result<(), LemmyError>
})
.await??;
// Set up the rate limiter
let rate_limiter = RateLimit {
rate_limiter: Arc::new(Mutex::new(RateLimiter::default())),
};
println!(
"Starting http server at {}:{}",
settings.bind, settings.port
);
let activity_queue = create_activity_queue();
let cache_handler = Arc::new(CodeCacheHandler::new());
let chat_server = ChatServer::startup(
pool.clone(),
rate_limiter.clone(),
Client::default(),
activity_queue.clone(),
cache_handler.clone(),
)
.start();
// Create Http server with websocket support
HttpServer::new(move || {
let context = LemmyContext::create(
pool.clone(),
chat_server.to_owned(),
Client::default(),
activity_queue.to_owned(),
cache_handler.clone(),
);
let cors = Cors::default()
.allow_any_origin()
.supports_credentials()
.allowed_methods(vec!["GET", "POST", "PUT", "OPTIONS"])
.allow_any_header()
.max_age(3600);
let rate_limiter = rate_limiter.clone();
App::new()
.wrap_fn(add_cache_headers)
.wrap(cors)
.wrap(middleware::Logger::default())
.app_data(Data::new(context))
// The routes
.configure(|cfg| api::config(cfg, &rate_limiter))
.configure(federation::config)
.configure(feeds::config)
.configure(|cfg| images::config(cfg, &rate_limiter))
.configure(nodeinfo::config)
.configure(webfinger::config)
})
.bind((settings.bind, settings.port))?
.run()
.await?;
Ok(())
}
fn add_cache_headers<S>(
req: ServiceRequest,
srv: &S,
) -> impl Future<Output = Result<ServiceResponse, Error>>
where
S: Service<ServiceRequest, Response = ServiceResponse<Body>, Error = Error>
{
let fut = srv.call(req);
async move {
let mut res = fut.await?;
if let Some(content_type) = res.headers().get(CONTENT_TYPE) {
if CACHE_CONTROL_IMAGE_REGEX.is_match(content_type.to_str().unwrap()) {
let header_val = HeaderValue::from_static(&CACHE_CONTROL_IMAGE_VALUE);
res.headers_mut().insert(CACHE_CONTROL, header_val);
} else if CACHE_CONTROL_APPLICATION_REGEX.is_match(content_type.to_str().unwrap()) {
let header_val = HeaderValue::from_static(&CACHE_CONTROL_APPLICATION_VALUE);
res.headers_mut().insert(CACHE_CONTROL, header_val);
}
}
Ok(res)
}
}