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nodeinfo.rs
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nodeinfo.rs
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use actix_web::{error::ErrorBadRequest, web, Error, HttpResponse, Result};
use anyhow::anyhow;
use lemmy_api_common::context::LemmyContext;
use lemmy_db_schema::RegistrationMode;
use lemmy_db_views::structs::SiteView;
use lemmy_utils::{
cache_header::{cache_1hour, cache_3days},
error::{LemmyError, LemmyResult},
VERSION,
};
use serde::{Deserialize, Serialize};
use std::collections::HashMap;
use url::Url;
/// A description of the nodeinfo endpoint is here:
/// https://github.com/jhass/nodeinfo/blob/main/PROTOCOL.md
pub fn config(cfg: &mut web::ServiceConfig) {
cfg
.route(
"/nodeinfo/2.1",
web::get().to(node_info).wrap(cache_1hour()),
)
.service(web::redirect("/version", "/nodeinfo/2.1"))
// For backwards compatibility, can be removed after Lemmy 0.20
.service(web::redirect("/nodeinfo/2.0.json", "/nodeinfo/2.1"))
.service(web::redirect("/nodeinfo/2.1.json", "/nodeinfo/2.1"))
.route(
"/.well-known/nodeinfo",
web::get().to(node_info_well_known).wrap(cache_3days()),
);
}
async fn node_info_well_known(context: web::Data<LemmyContext>) -> LemmyResult<HttpResponse> {
let node_info = NodeInfoWellKnown {
links: vec![NodeInfoWellKnownLinks {
rel: Url::parse("http://nodeinfo.diaspora.software/ns/schema/2.1")?,
href: Url::parse(&format!(
"{}/nodeinfo/2.1",
&context.settings().get_protocol_and_hostname(),
))?,
}],
};
Ok(HttpResponse::Ok().json(node_info))
}
async fn node_info(context: web::Data<LemmyContext>) -> Result<HttpResponse, Error> {
let site_view = SiteView::read_local(&mut context.pool())
.await
.map_err(|_| ErrorBadRequest(LemmyError::from(anyhow!("not_found"))))?
.ok_or(ErrorBadRequest(LemmyError::from(anyhow!("not_found"))))?;
// Since there are 3 registration options,
// we need to set open_registrations as true if RegistrationMode is not Closed.
let open_registrations = Some(site_view.local_site.registration_mode != RegistrationMode::Closed);
let json = NodeInfo {
version: Some("2.1".to_string()),
software: Some(NodeInfoSoftware {
name: Some("lemmy".to_string()),
version: Some(VERSION.to_string()),
repository: Some("https://github.com/LemmyNet/lemmy".to_string()),
homepage: Some("https://join-lemmy.org/".to_string()),
}),
protocols: Some(vec!["activitypub".to_string()]),
usage: Some(NodeInfoUsage {
users: Some(NodeInfoUsers {
total: Some(site_view.counts.users),
active_halfyear: Some(site_view.counts.users_active_half_year),
active_month: Some(site_view.counts.users_active_month),
}),
local_posts: Some(site_view.counts.posts),
local_comments: Some(site_view.counts.comments),
}),
open_registrations,
services: Some(NodeInfoServices {
inbound: Some(vec![]),
outbound: Some(vec![]),
}),
metadata: Some(HashMap::new()),
};
Ok(HttpResponse::Ok().json(json))
}
#[derive(Serialize, Deserialize, Debug)]
pub struct NodeInfoWellKnown {
pub links: Vec<NodeInfoWellKnownLinks>,
}
#[derive(Serialize, Deserialize, Debug)]
pub struct NodeInfoWellKnownLinks {
pub rel: Url,
pub href: Url,
}
/// Nodeinfo spec: http://nodeinfo.diaspora.software/docson/index.html#/ns/schema/2.1
#[derive(Serialize, Deserialize, Debug, Default)]
#[serde(rename_all = "camelCase", default)]
pub struct NodeInfo {
pub version: Option<String>,
pub software: Option<NodeInfoSoftware>,
pub protocols: Option<Vec<String>>,
pub usage: Option<NodeInfoUsage>,
pub open_registrations: Option<bool>,
/// These fields are required by the spec for no reason
pub services: Option<NodeInfoServices>,
pub metadata: Option<HashMap<String, String>>,
}
#[derive(Serialize, Deserialize, Debug, Default)]
#[serde(default)]
pub struct NodeInfoSoftware {
pub name: Option<String>,
pub version: Option<String>,
pub repository: Option<String>,
pub homepage: Option<String>,
}
#[derive(Serialize, Deserialize, Debug, Default)]
#[serde(rename_all = "camelCase", default)]
pub struct NodeInfoUsage {
pub users: Option<NodeInfoUsers>,
pub local_posts: Option<i64>,
pub local_comments: Option<i64>,
}
#[derive(Serialize, Deserialize, Debug, Default)]
#[serde(rename_all = "camelCase", default)]
pub struct NodeInfoUsers {
pub total: Option<i64>,
pub active_halfyear: Option<i64>,
pub active_month: Option<i64>,
}
#[derive(Serialize, Deserialize, Debug, Default)]
#[serde(rename_all = "camelCase", default)]
pub struct NodeInfoServices {
pub inbound: Option<Vec<String>>,
pub outbound: Option<Vec<String>>,
}