mobilizon/lib/web/controllers/node_info_controller.ex
Thomas Citharel f10977a99a
feat(activitypub): implement FEP-2677 to identify the application actor used for federation
Instead of always assuming it will be @relay@host.tld

Closes #1367

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
2023-12-14 16:31:58 +01:00

90 lines
2.5 KiB
Elixir

# Portions of this file are derived from Pleroma:
# Copyright © 2017-2018 Pleroma Authors <https://pleroma.social>
# SPDX-License-Identifier: AGPL-3.0-only
# Upstream: https://git.pleroma.social/pleroma/pleroma/blob/develop/lib/pleroma/web/nodeinfo/nodeinfo_controller.ex
defmodule Mobilizon.Web.NodeInfoController do
use Mobilizon.Web, :controller
alias Mobilizon.Config
alias Mobilizon.Federation.ActivityPub.Relay
alias Mobilizon.Service.Statistics
@node_info_supported_versions ["2.0", "2.1"]
@node_info_schema_uri "http://nodeinfo.diaspora.software/ns/schema/"
@application_uri "https://www.w3.org/ns/activitystreams#Application"
@spec schemas(Plug.Conn.t(), any) :: Plug.Conn.t()
def schemas(conn, _params) do
relay = Relay.get_actor()
links =
@node_info_supported_versions
|> Enum.map(fn version ->
%{
rel: @node_info_schema_uri <> version,
href: url(~p"/.well-known/nodeinfo/#{version}")
}
end)
|> Kernel.++([
%{
rel: @application_uri,
href: relay.url
}
])
json(conn, %{
links: links
})
end
# Schema definition: https://github.com/jhass/nodeinfo/blob/master/schemas/2.1/schema.json
@spec nodeinfo(Plug.Conn.t(), any()) :: Plug.Conn.t()
def nodeinfo(conn, %{"version" => version}) when version in @node_info_supported_versions do
response = %{
version: version,
software: %{
name: "Mobilizon",
version: Config.instance_version()
},
protocols: ["activitypub"],
services: %{
inbound: [],
outbound: ["atom1.0"]
},
openRegistrations: Config.instance_registrations_open?(),
usage: %{
users: %{
total: Statistics.get_cached_value(:local_users)
},
localPosts: Statistics.get_cached_value(:local_events),
localComments: Statistics.get_cached_value(:local_comments)
},
metadata: %{
nodeName: Config.instance_name(),
nodeDescription: Config.instance_description()
}
}
response =
if version == "2.1" do
put_in(response, [:software, :repository], Config.instance_repository())
else
response
end
conn
|> put_resp_header(
"content-type",
"application/json; profile=http://nodeinfo.diaspora.software/ns/schema/2.1#; charset=utf-8"
)
|> json(response)
end
def nodeinfo(conn, _) do
conn
|> put_status(404)
|> json(%{error: "Nodeinfo schema version not handled"})
end
end