Merge branch 'feature/nodeinfo' into 'develop'

Implements the nodeinfo endpoints

See merge request pleroma/pleroma!140

lib/pleroma/web/nodeinfo/nodeinfo.ex

+

lib/pleroma/web/nodeinfo/nodeinfo_controller.ex

+defmodule Pleroma.Web.Nodeinfo.NodeinfoController do
+  use Pleroma.Web, :controller
+
+  alias Pleroma.Web.Nodeinfo
+  alias Pleroma.Stats
+  alias Pleroma.Web
+
+  @instance Application.get_env(:pleroma, :instance)
+
+  def schemas(conn, _params) do
+    response = %{
+      links: [
+        %{
+          rel: "http://nodeinfo.diaspora.software/ns/schema/2.0",
+          href: Web.base_url() <> "/nodeinfo/2.0.json"
+        }
+      ]
+    }
+
+    json(conn, response)
+  end
+
+  # Schema definition: https://github.com/jhass/nodeinfo/blob/master/schemas/2.0/schema.json
+  def nodeinfo(conn, %{"version" => "2.0"}) do
+    stats = Stats.get_stats()
+
+    response = %{
+      version: "2.0",
+      software: %{
+        name: "pleroma",
+        version: Keyword.get(@instance, :version)
+      },
+      protocols: ["ostatus", "activitypub"],
+      services: %{
+        inbound: [],
+        outbound: []
+      },
+      openRegistrations: Keyword.get(@instance, :registrations_open),
+      usage: %{
+        users: %{
+          total: stats.user_count || 0
+        },
+        localPosts: stats.status_count || 0
+      },
+      metadata: %{
+        nodeName: Keyword.get(@instance, :name)
+      }
+    }
+
+    conn
+    |> put_resp_header(
+      "content-type",
+      "application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.0#; charset=utf-8"
+    )
+    |> json(response)
+  end
+
+  def nodeinfo(conn, _) do
+    conn
+    |> put_status(404)
+    |> json(%{error: "Nodeinfo schema version not handled"})
+  end
+end

lib/pleroma/web/router.ex

@@ -295,6 +295,11 @@ def user_fetcher(username) do
 
       get("/host-meta", WebFinger.WebFingerController, :host_meta)
       get("/webfinger", WebFinger.WebFingerController, :webfinger)
+      get("/nodeinfo", Nodeinfo.NodeinfoController, :schemas)
+    end
+
+    scope "/nodeinfo", Pleroma.Web do
+      get("/:version", Nodeinfo.NodeinfoController, :nodeinfo)
     end
   end