Add NodeInfo endpoints (fixes #11)

src/routes/instance.rs

@@ -1,11 +1,12 @@
 use rocket::{request::Form, response::Redirect};
-use rocket_contrib::Template;
+use rocket_contrib::{Json, Template};
 use serde_json;
 
 use BASE_URL;
 use activity_pub::inbox::Inbox;
 use db_conn::DbConn;
 use models::{
+    comments::Comment,
     posts::Post,
     users::User,
     instance::*
@@ -75,3 +76,28 @@ fn shared_inbox(conn: DbConn, data: String) -> String {
     instance.received(&*conn, act);
     String::from("")
 }
+
+#[get("/nodeinfo")]
+fn nodeinfo(conn: DbConn) -> Json {
+    Json(json!({
+        "version": "2.0",
+        "software": {
+            "name": "Plume",
+            "version": "0.1.0"
+        },
+        "protocols": ["activitypub"],
+        "services": {
+            "inbound": [],
+            "outbound": []
+        },
+        "openRegistrations": true,
+        "usage": {
+            "users": {
+                "total": User::count_local(&*conn)
+            },
+            "localPosts": Post::count_local(&*conn),
+            "localComments": Comment::count_local(&*conn)
+        },
+        "metadata": {}
+    }))
+}

src/routes/well_known.rs

@@ -6,6 +6,18 @@ use activity_pub::{ap_url, webfinger::Webfinger};
 use db_conn::DbConn;
 use models::{blogs::Blog, users::User};
 
+#[get("/.well-known/nodeinfo")]
+fn nodeinfo() -> Content<String> {
+    Content(ContentType::new("application", "jrd+json"), json!({
+        "links": [
+            {
+                "rel": "http://nodeinfo.diaspora.software/ns/schema/2.0",
+                "href": ap_url(format!("{domain}/nodeinfo", domain = BASE_URL.as_str()))
+            }
+        ]
+    }).to_string())
+}
+
 #[get("/.well-known/host-meta", format = "application/xml")]
 fn host_meta() -> String {
     format!(r#"