+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
defmodule Pleroma.Web.ActivityPub.ActivityPubController do
use Pleroma.Web, :controller
- alias Pleroma.{User, Repo, Object, Activity}
- alias Pleroma.Web.ActivityPub.{ObjectView, UserView, Transmogrifier}
+
+ alias Pleroma.{Activity, User, Object}
+ alias Pleroma.Web.ActivityPub.{ObjectView, UserView}
alias Pleroma.Web.ActivityPub.ActivityPub
+ alias Pleroma.Web.ActivityPub.Relay
+ alias Pleroma.Web.ActivityPub.Utils
+ alias Pleroma.Web.ActivityPub.Transmogrifier
+ alias Pleroma.Web.Federator
require Logger
- action_fallback :errors
+ action_fallback(:errors)
+
+ plug(Pleroma.Web.FederatingPlug when action in [:inbox, :relay])
+ plug(:set_requester_reachable when action in [:inbox])
+ plug(:relay_active? when action in [:relay])
+
+ def relay_active?(conn, _) do
+ if Keyword.get(Application.get_env(:pleroma, :instance), :allow_relay) do
+ conn
+ else
+ conn
+ |> put_status(404)
+ |> json(%{error: "not found"})
+ |> halt
+ end
+ end
def user(conn, %{"nickname" => nickname}) do
with %User{} = user <- User.get_cached_by_nickname(nickname),
{:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
- json(conn, UserView.render("user.json", %{user: user}))
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("user.json", %{user: user}))
+ else
+ nil -> {:error, :not_found}
end
end
def object(conn, %{"uuid" => uuid}) do
with ap_id <- o_status_url(conn, :object, uuid),
- %Object{} = object <- Object.get_cached_by_ap_id(ap_id) do
- json(conn, ObjectView.render("object.json", %{object: object}))
+ %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
+ {_, true} <- {:public?, ActivityPub.is_public?(object)} do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(ObjectView.render("object.json", %{object: object}))
+ else
+ {:public?, false} ->
+ {:error, :not_found}
end
end
- # TODO: Ensure that this inbox is a recipient of the message
- def inbox(%{assigns: %{valid_signature: true}} = conn, params) do
- # File.write("/tmp/incoming.json", Poison.encode!(params))
- with {:ok, _user} <- ap_enabled_actor(params["actor"]),
- nil <- Activity.get_by_ap_id(params["id"]),
- {:ok, activity} <- Transmogrifier.handle_incoming(params) do
+ def object_likes(conn, %{"uuid" => uuid, "page" => page}) do
+ with ap_id <- o_status_url(conn, :object, uuid),
+ %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
+ {_, true} <- {:public?, ActivityPub.is_public?(object)},
+ likes <- Utils.get_object_likes(object) do
+ {page, _} = Integer.parse(page)
+
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(ObjectView.render("likes.json", ap_id, likes, page))
+ else
+ {:public?, false} ->
+ {:error, :not_found}
+ end
+ end
+
+ def object_likes(conn, %{"uuid" => uuid}) do
+ with ap_id <- o_status_url(conn, :object, uuid),
+ %Object{} = object <- Object.get_cached_by_ap_id(ap_id),
+ {_, true} <- {:public?, ActivityPub.is_public?(object)},
+ likes <- Utils.get_object_likes(object) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(ObjectView.render("likes.json", ap_id, likes))
+ else
+ {:public?, false} ->
+ {:error, :not_found}
+ end
+ end
+
+ def activity(conn, %{"uuid" => uuid}) do
+ with ap_id <- o_status_url(conn, :activity, uuid),
+ %Activity{} = activity <- Activity.normalize(ap_id),
+ {_, true} <- {:public?, ActivityPub.is_public?(activity)} do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(ObjectView.render("object.json", %{object: activity}))
+ else
+ {:public?, false} ->
+ {:error, :not_found}
+ end
+ end
+
+ def following(conn, %{"nickname" => nickname, "page" => page}) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ {page, _} = Integer.parse(page)
+
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("following.json", %{user: user, page: page}))
+ end
+ end
+
+ def following(conn, %{"nickname" => nickname}) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("following.json", %{user: user}))
+ end
+ end
+
+ def followers(conn, %{"nickname" => nickname, "page" => page}) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ {page, _} = Integer.parse(page)
+
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("followers.json", %{user: user, page: page}))
+ end
+ end
+
+ def followers(conn, %{"nickname" => nickname}) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("followers.json", %{user: user}))
+ end
+ end
+
+ def outbox(conn, %{"nickname" => nickname} = params) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("outbox.json", %{user: user, max_id: params["max_id"]}))
+ end
+ end
+
+ def inbox(%{assigns: %{valid_signature: true}} = conn, %{"nickname" => nickname} = params) do
+ with %User{} = user <- User.get_cached_by_nickname(nickname),
+ true <- Utils.recipient_in_message(user.ap_id, params),
+ params <- Utils.maybe_splice_recipient(user.ap_id, params) do
+ Federator.incoming_ap_doc(params)
json(conn, "ok")
+ end
+ end
+
+ def inbox(%{assigns: %{valid_signature: true}} = conn, params) do
+ Federator.incoming_ap_doc(params)
+ json(conn, "ok")
+ end
+
+ # only accept relayed Creates
+ def inbox(conn, %{"type" => "Create"} = params) do
+ Logger.info(
+ "Signature missing or not from author, relayed Create message, fetching object from source"
+ )
+
+ ActivityPub.fetch_object_from_id(params["object"]["id"])
+
+ json(conn, "ok")
+ end
+
+ def inbox(conn, params) do
+ headers = Enum.into(conn.req_headers, %{})
+
+ if String.contains?(headers["signature"], params["actor"]) do
+ Logger.info(
+ "Signature validation error for: #{params["actor"]}, make sure you are forwarding the HTTP Host header!"
+ )
+
+ Logger.info(inspect(conn.req_headers))
+ end
+
+ json(conn, "error")
+ end
+
+ def relay(conn, _params) do
+ with %User{} = user <- Relay.get_actor(),
+ {:ok, user} <- Pleroma.Web.WebFinger.ensure_keys_present(user) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("user.json", %{user: user}))
+ else
+ nil -> {:error, :not_found}
+ end
+ end
+
+ def whoami(%{assigns: %{user: %User{} = user}} = conn, _params) do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("user.json", %{user: user}))
+ end
+
+ def whoami(_conn, _params), do: {:error, :not_found}
+
+ def read_inbox(%{assigns: %{user: user}} = conn, %{"nickname" => nickname} = params) do
+ if nickname == user.nickname do
+ conn
+ |> put_resp_header("content-type", "application/activity+json")
+ |> json(UserView.render("inbox.json", %{user: user, max_id: params["max_id"]}))
else
- %Activity{} ->
- Logger.info("Already had #{params["id"]}")
- json(conn, "ok")
- e ->
- # Just drop those for now
- Logger.info("Unhandled activity")
- Logger.info(Poison.encode!(params, [pretty: 2]))
- json(conn, "ok")
+ conn
+ |> put_status(:forbidden)
+ |> json("can't read inbox of #{nickname} as #{user.nickname}")
end
end
- def ap_enabled_actor(id) do
- user = User.get_by_ap_id(id)
- if User.ap_enabled?(user) do
- {:ok, user}
+ def handle_user_activity(user, %{"type" => "Create"} = params) do
+ object =
+ params["object"]
+ |> Map.merge(Map.take(params, ["to", "cc"]))
+ |> Map.put("attributedTo", user.ap_id())
+ |> Transmogrifier.fix_object()
+
+ ActivityPub.create(%{
+ to: params["to"],
+ actor: user,
+ context: object["context"],
+ object: object,
+ additional: Map.take(params, ["cc"])
+ })
+ end
+
+ def handle_user_activity(user, %{"type" => "Delete"} = params) do
+ with %Object{} = object <- Object.normalize(params["object"]),
+ true <- user.info.is_moderator || user.ap_id == object.data["actor"],
+ {:ok, delete} <- ActivityPub.delete(object) do
+ {:ok, delete}
else
- ActivityPub.make_user_from_ap_id(id)
+ _ -> {:error, "Can't delete object"}
end
end
+ def handle_user_activity(user, %{"type" => "Like"} = params) do
+ with %Object{} = object <- Object.normalize(params["object"]),
+ {:ok, activity, _object} <- ActivityPub.like(user, object) do
+ {:ok, activity}
+ else
+ _ -> {:error, "Can't like object"}
+ end
+ end
+
+ def handle_user_activity(_, _) do
+ {:error, "Unhandled activity type"}
+ end
+
+ def update_outbox(
+ %{assigns: %{user: user}} = conn,
+ %{"nickname" => nickname} = params
+ ) do
+ if nickname == user.nickname do
+ actor = user.ap_id()
+
+ params =
+ params
+ |> Map.drop(["id"])
+ |> Map.put("actor", actor)
+ |> Transmogrifier.fix_addressing()
+
+ with {:ok, %Activity{} = activity} <- handle_user_activity(user, params) do
+ conn
+ |> put_status(:created)
+ |> put_resp_header("location", activity.data["id"])
+ |> json(activity.data)
+ else
+ {:error, message} ->
+ conn
+ |> put_status(:bad_request)
+ |> json(message)
+ end
+ else
+ conn
+ |> put_status(:forbidden)
+ |> json("can't update outbox of #{nickname} as #{user.nickname}")
+ end
+ end
+
+ def errors(conn, {:error, :not_found}) do
+ conn
+ |> put_status(404)
+ |> json("Not found")
+ end
+
def errors(conn, _e) do
conn
|> put_status(500)
|> json("error")
end
+
+ defp set_requester_reachable(%Plug.Conn{} = conn, _) do
+ with actor <- conn.params["actor"],
+ true <- is_binary(actor) do
+ Pleroma.Instances.set_reachable(actor)
+ end
+
+ conn
+ end
end
projects / akkoma / blobdiff