lemmy/server/src/routes/nodeinfo.rs

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Rust
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use crate::db::site_view::SiteView;
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use crate::version;
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use crate::Settings;
use actix_web::body::Body;
use actix_web::web;
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use actix_web::HttpResponse;
use diesel::r2d2::{ConnectionManager, Pool};
use diesel::PgConnection;
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use serde_json::json;
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pub fn config(cfg: &mut web::ServiceConfig) {
cfg
.route("/nodeinfo/2.0.json", web::get().to(node_info))
.route("/.well-known/nodeinfo", web::get().to(node_info_well_known));
}
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async fn node_info_well_known() -> HttpResponse<Body> {
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let json = json!({
"links": {
"rel": "http://nodeinfo.diaspora.software/ns/schema/2.0",
"href": format!("https://{}/nodeinfo/2.0.json", Settings::get().hostname),
}
});
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HttpResponse::Ok().json(json.to_string())
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}
async fn node_info(
db: web::Data<Pool<ConnectionManager<PgConnection>>>,
) -> Result<HttpResponse, actix_web::Error> {
let res = web::block(move || {
let conn = db.get()?;
let site_view = match SiteView::read(&conn) {
Ok(site_view) => site_view,
Err(_) => return Err(format_err!("not_found")),
};
let protocols = if Settings::get().federation_enabled {
vec!["activitypub"]
} else {
vec![]
};
Ok(json!({
"version": "2.0",
"software": {
"name": "lemmy",
"version": version::VERSION,
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},
"protocols": protocols,
"usage": {
"users": {
"total": site_view.number_of_users
},
"localPosts": site_view.number_of_posts,
"localComments": site_view.number_of_comments,
"openRegistrations": site_view.open_registration,
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}
}))
})
.await
.map(|json| HttpResponse::Ok().json(json))
.map_err(|_| HttpResponse::InternalServerError())?;
Ok(res)
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}