X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=lib%2Fpleroma%2Fweb%2Factivity_pub%2Factivity_pub_controller.ex;h=47937beef430a6437dc782394c1b86762fd0be25;hb=92a0210fb03ca3e0aefe769fb6b0ab7bda6e5336;hp=8080a2b1e5afcd8f5e566ca0345c650a4e378f4c;hpb=68752b20475162705837421e446166892421cf21;p=akkoma

diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
index 8080a2b1e..7091d6927 100644
--- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex
+++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex
@@ -1,48 +1,315 @@
+# 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}
-  alias Pleroma.Web.ActivityPub.{ObjectView, UserView, Transmogrifier}
+
+  alias Pleroma.Activity
+  alias Pleroma.Object
+  alias Pleroma.User
   alias Pleroma.Web.ActivityPub.ActivityPub
+  alias Pleroma.Web.ActivityPub.ObjectView
+  alias Pleroma.Web.ActivityPub.Relay
+  alias Pleroma.Web.ActivityPub.Transmogrifier
+  alias Pleroma.Web.ActivityPub.UserView
+  alias Pleroma.Web.ActivityPub.Utils
+  alias Pleroma.Web.ActivityPub.Visibility
+  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?, Visibility.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"]),
-         {: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?, Visibility.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?, Visibility.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?, Visibility.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
-      e -> IO.inspect(e)
+      nil -> {:error, :not_found}
     end
   end
 
-  def ap_enabled_actor(id) do
-    user = User.get_by_ap_id(id)
-    if User.ap_enabled?(user) do
-      {:ok, user}
+  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
-      ActivityPub.make_user_from_ap_id(id)
+      conn
+      |> put_status(:forbidden)
+      |> json("can't read inbox of #{nickname} as #{user.nickname}")
     end
   end
 
+  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
+      _ -> {: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