@moduledoc """
A module to handle coding from internal to wire ActivityPub and back.
"""
+ alias Pleroma.User
+ alias Pleroma.Object
+ alias Pleroma.Object.Containment
alias Pleroma.Activity
alias Pleroma.Object
alias Pleroma.Repo
require Logger
- def get_actor(%{"actor" => actor}) when is_binary(actor) do
- actor
- end
-
- def get_actor(%{"actor" => actor}) when is_list(actor) do
- if is_binary(Enum.at(actor, 0)) do
- Enum.at(actor, 0)
- else
- Enum.find(actor, fn %{"type" => type} -> type in ["Person", "Service", "Application"] end)
- |> Map.get("id")
- end
- end
-
- def get_actor(%{"actor" => %{"id" => id}}) when is_bitstring(id) do
- id
- end
-
- def get_actor(%{"actor" => nil, "attributedTo" => actor}) when not is_nil(actor) do
- get_actor(%{"actor" => actor})
- end
-
- @doc """
- Checks that an imported AP object's actor matches the domain it came from.
- """
- def contain_origin(_id, %{"actor" => nil}), do: :error
-
- def contain_origin(id, %{"actor" => _actor} = params) do
- id_uri = URI.parse(id)
- actor_uri = URI.parse(get_actor(params))
-
- if id_uri.host == actor_uri.host do
- :ok
- else
- :error
- end
- end
-
- def contain_origin_from_id(_id, %{"id" => nil}), do: :error
-
- def contain_origin_from_id(id, %{"id" => other_id} = _params) do
- id_uri = URI.parse(id)
- other_uri = URI.parse(other_id)
-
- if id_uri.host == other_uri.host do
- :ok
- else
- :error
- end
- end
-
@doc """
Modifies an incoming AP object (mastodon format) to our internal format.
"""
|> fix_content_map
|> fix_likes
|> fix_addressing
+ |> fix_summary
+ end
+
+ def fix_summary(%{"summary" => nil} = object) do
+ object
+ |> Map.put("summary", "")
+ end
+
+ def fix_summary(%{"summary" => _} = object) do
+ # summary is present, nothing to do
+ object
+ end
+
+ def fix_summary(object) do
+ object
+ |> Map.put("summary", "")
end
def fix_addressing_list(map, field) do
- if is_binary(map[field]) do
- map
- |> Map.put(field, [map[field]])
- else
- map
+ cond do
+ is_binary(map[field]) ->
+ Map.put(map, field, [map[field]])
+
+ is_nil(map[field]) ->
+ Map.put(map, field, [])
+
+ true ->
+ map
end
end
|> fix_explicit_addressing(explicit_mentions)
end
+ # if as:Public is addressed, then make sure the followers collection is also addressed
+ # so that the activities will be delivered to local users.
+ def fix_implicit_addressing(%{"to" => to, "cc" => cc} = object, followers_collection) do
+ recipients = to ++ cc
+
+ if followers_collection not in recipients do
+ cond do
+ "https://www.w3.org/ns/activitystreams#Public" in cc ->
+ to = to ++ [followers_collection]
+ Map.put(object, "to", to)
+
+ "https://www.w3.org/ns/activitystreams#Public" in to ->
+ cc = cc ++ [followers_collection]
+ Map.put(object, "cc", cc)
+
+ true ->
+ object
+ end
+ else
+ object
+ end
+ end
+
+ def fix_implicit_addressing(object, _), do: object
+
def fix_addressing(object) do
+ %User{} = user = User.get_or_fetch_by_ap_id(object["actor"])
+ followers_collection = User.ap_followers(user)
+
object
|> fix_addressing_list("to")
|> fix_addressing_list("cc")
|> fix_addressing_list("bto")
|> fix_addressing_list("bcc")
|> fix_explicit_addressing
+ |> fix_implicit_addressing(followers_collection)
end
def fix_actor(%{"attributedTo" => actor} = object) do
object
- |> Map.put("actor", get_actor(%{"actor" => actor}))
+ |> Map.put("actor", Containment.get_actor(%{"actor" => actor}))
end
# Check for standardisation
""
end
- case fetch_obj_helper(in_reply_to_id) do
+ case get_obj_helper(in_reply_to_id) do
{:ok, replied_object} ->
- with %Activity{} = activity <-
+ with %Activity{} = _activity <-
Activity.get_create_by_object_ap_id(replied_object.data["id"]) do
object
|> Map.put("inReplyTo", replied_object.data["id"])
|> Map.put("inReplyToAtomUri", object["inReplyToAtomUri"] || in_reply_to_id)
- |> Map.put("inReplyToStatusId", activity.id)
|> Map.put("conversation", replied_object.data["context"] || object["conversation"])
|> Map.put("context", replied_object.data["context"] || object["conversation"])
else
end
end
+ # Flag objects are placed ahead of the ID check because Mastodon 2.8 and earlier send them
+ # with nil ID.
+ def handle_incoming(%{"type" => "Flag", "object" => objects, "actor" => actor} = data) do
+ with context <- data["context"] || Utils.generate_context_id(),
+ content <- data["content"] || "",
+ %User{} = actor <- User.get_cached_by_ap_id(actor),
+
+ # Reduce the object list to find the reported user.
+ %User{} = account <-
+ Enum.reduce_while(objects, nil, fn ap_id, _ ->
+ with %User{} = user <- User.get_cached_by_ap_id(ap_id) do
+ {:halt, user}
+ else
+ _ -> {:cont, nil}
+ end
+ end),
+
+ # Remove the reported user from the object list.
+ statuses <- Enum.filter(objects, fn ap_id -> ap_id != account.ap_id end) do
+ params = %{
+ actor: actor,
+ context: context,
+ account: account,
+ statuses: statuses,
+ content: content,
+ additional: %{
+ "cc" => [account.ap_id]
+ }
+ }
+
+ ActivityPub.flag(params)
+ end
+ end
+
# disallow objects with bogus IDs
def handle_incoming(%{"id" => nil}), do: :error
def handle_incoming(%{"id" => ""}), do: :error
# - emoji
def handle_incoming(%{"type" => "Create", "object" => %{"type" => objtype} = object} = data)
when objtype in ["Article", "Note", "Video", "Page"] do
- actor = get_actor(data)
+ actor = Containment.get_actor(data)
data =
Map.put(data, "actor", actor)
def handle_incoming(
%{"type" => "Accept", "object" => follow_object, "actor" => _actor, "id" => _id} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = followed <- User.get_or_fetch_by_ap_id(actor),
{:ok, follow_activity} <- get_follow_activity(follow_object, followed),
{:ok, follow_activity} <- Utils.update_follow_state(follow_activity, "accept"),
def handle_incoming(
%{"type" => "Reject", "object" => follow_object, "actor" => _actor, "id" => _id} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = followed <- User.get_or_fetch_by_ap_id(actor),
{:ok, follow_activity} <- get_follow_activity(follow_object, followed),
{:ok, follow_activity} <- Utils.update_follow_state(follow_activity, "reject"),
def handle_incoming(
%{"type" => "Like", "object" => object_id, "actor" => _actor, "id" => id} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = actor <- User.get_or_fetch_by_ap_id(actor),
- {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
+ {:ok, object} <- get_obj_helper(object_id),
{:ok, activity, _object} <- ActivityPub.like(actor, object, id, false) do
{:ok, activity}
else
def handle_incoming(
%{"type" => "Announce", "object" => object_id, "actor" => _actor, "id" => id} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = actor <- User.get_or_fetch_by_ap_id(actor),
- {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
+ {:ok, object} <- get_obj_helper(object_id),
public <- Visibility.is_public?(data),
{:ok, activity, _object} <- ActivityPub.announce(actor, object, id, false, public) do
{:ok, activity}
) do
object_id = Utils.get_ap_id(object_id)
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = actor <- User.get_or_fetch_by_ap_id(actor),
- {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
- :ok <- contain_origin(actor.ap_id, object.data),
+ {:ok, object} <- get_obj_helper(object_id),
+ :ok <- Containment.contain_origin(actor.ap_id, object.data),
{:ok, activity} <- ActivityPub.delete(object, false) do
{:ok, activity}
else
"id" => id
} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = actor <- User.get_or_fetch_by_ap_id(actor),
- {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
+ {:ok, object} <- get_obj_helper(object_id),
{:ok, activity, _} <- ActivityPub.unannounce(actor, object, id, false) do
{:ok, activity}
else
"id" => id
} = data
) do
- with actor <- get_actor(data),
+ with actor <- Containment.get_actor(data),
%User{} = actor <- User.get_or_fetch_by_ap_id(actor),
- {:ok, object} <- get_obj_helper(object_id) || fetch_obj_helper(object_id),
+ {:ok, object} <- get_obj_helper(object_id),
{:ok, activity, _, _} <- ActivityPub.unlike(actor, object, id, false) do
{:ok, activity}
else
def handle_incoming(_), do: :error
- def fetch_obj_helper(id) when is_bitstring(id), do: ActivityPub.fetch_object_from_id(id)
- def fetch_obj_helper(obj) when is_map(obj), do: ActivityPub.fetch_object_from_id(obj["id"])
-
def get_obj_helper(id) do
if object = Object.normalize(id), do: {:ok, object}, else: nil
end
# internal -> Mastodon
# """
- def prepare_outgoing(%{"type" => "Create", "object" => object} = data) do
+ def prepare_outgoing(%{"type" => "Create", "object" => object_id} = data) do
object =
- object
+ Object.normalize(object_id).data
|> prepare_object
data =
def maybe_fix_object_url(data) do
if is_binary(data["object"]) and not String.starts_with?(data["object"], "http") do
- case fetch_obj_helper(data["object"]) do
+ case get_obj_helper(data["object"]) do
{:ok, relative_object} ->
if relative_object.data["external_url"] do
_data =
defp strip_internal_tags(object), do: object
- defp user_upgrade_task(user) do
- old_follower_address = User.ap_followers(user)
+ def perform(:user_upgrade, user) do
+ # we pass a fake user so that the followers collection is stripped away
+ old_follower_address = User.ap_followers(%User{nickname: user.nickname})
q =
from(
Repo.update_all(q, [])
end
- def upgrade_user_from_ap_id(ap_id, async \\ true) do
+ def upgrade_user_from_ap_id(ap_id) do
with %User{local: false} = user <- User.get_by_ap_id(ap_id),
- {:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id) do
- already_ap = User.ap_enabled?(user)
-
- {:ok, user} =
- User.upgrade_changeset(user, data)
- |> Repo.update()
-
- if !already_ap do
- # This could potentially take a long time, do it in the background
- if async do
- Task.start(fn ->
- user_upgrade_task(user)
- end)
- else
- user_upgrade_task(user)
- end
+ {:ok, data} <- ActivityPub.fetch_and_prepare_user_from_ap_id(ap_id),
+ already_ap <- User.ap_enabled?(user),
+ {:ok, user} <- user |> User.upgrade_changeset(data) |> User.update_and_set_cache() do
+ unless already_ap do
+ PleromaJobQueue.enqueue(:transmogrifier, __MODULE__, [:user_upgrade, user])
end
{:ok, user}
else
+ %User{} = user -> {:ok, user}
e -> e
end
end
projects / akkoma / blobdiff