# Pleroma: A lightweight social networking server
-# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.ActivityPub.Utils do
alias Ecto.Changeset
alias Ecto.UUID
alias Pleroma.Activity
- alias Pleroma.Activity.Queries
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Repo
require Logger
require Pleroma.Constants
- @supported_object_types ["Article", "Note", "Video", "Page", "Question", "Answer", "Audio"]
+ @supported_object_types [
+ "Article",
+ "Note",
+ "Event",
+ "Video",
+ "Page",
+ "Question",
+ "Answer",
+ "Audio"
+ ]
@strip_status_report_states ~w(closed resolved)
@supported_report_states ~w(open closed resolved)
@valid_visibilities ~w(public unlisted private direct)
Map.put(params, "actor", get_ap_id(params["actor"]))
end
- @spec determine_explicit_mentions(map()) :: map()
- def determine_explicit_mentions(%{"tag" => tag} = _) when is_list(tag) do
+ @spec determine_explicit_mentions(map()) :: [any]
+ def determine_explicit_mentions(%{"tag" => tag}) when is_list(tag) do
Enum.flat_map(tag, fn
%{"type" => "Mention", "href" => href} -> [href]
_ -> []
|> Repo.one()
end
+ @doc """
+ Returns like activities targeting an object
+ """
+ def get_object_likes(%{data: %{"id" => id}}) do
+ id
+ |> Activity.Queries.by_object_id()
+ |> Activity.Queries.by_type("Like")
+ |> Repo.all()
+ end
+
@spec make_like_data(User.t(), map(), String.t()) :: map()
def make_like_data(
%User{ap_id: ap_id} = actor,
|> maybe_put("id", activity_id)
end
- @spec update_element_in_object(String.t(), list(any), Object.t()) ::
+ def make_emoji_reaction_data(user, object, emoji, activity_id) do
+ make_like_data(user, object, activity_id)
+ |> Map.put("type", "EmojiReact")
+ |> Map.put("content", emoji)
+ end
+
+ @spec update_element_in_object(String.t(), list(any), Object.t(), integer() | nil) ::
{:ok, Object.t()} | {:error, Ecto.Changeset.t()}
- def update_element_in_object(property, element, object) do
+ def update_element_in_object(property, element, object, count \\ nil) do
+ length =
+ count ||
+ length(element)
+
data =
Map.merge(
object.data,
- %{"#{property}_count" => length(element), "#{property}s" => element}
+ %{"#{property}_count" => length, "#{property}s" => element}
)
object
|> Object.update_and_set_cache()
end
+ @spec add_emoji_reaction_to_object(Activity.t(), Object.t()) ::
+ {:ok, Object.t()} | {:error, Ecto.Changeset.t()}
+
+ def add_emoji_reaction_to_object(
+ %Activity{data: %{"content" => emoji, "actor" => actor}},
+ object
+ ) do
+ reactions = get_cached_emoji_reactions(object)
+
+ new_reactions =
+ case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
+ nil ->
+ reactions ++ [[emoji, [actor]]]
+
+ index ->
+ List.update_at(
+ reactions,
+ index,
+ fn [emoji, users] -> [emoji, Enum.uniq([actor | users])] end
+ )
+ end
+
+ count = emoji_count(new_reactions)
+
+ update_element_in_object("reaction", new_reactions, object, count)
+ end
+
+ def emoji_count(reactions_list) do
+ Enum.reduce(reactions_list, 0, fn [_, users], acc -> acc + length(users) end)
+ end
+
+ def remove_emoji_reaction_from_object(
+ %Activity{data: %{"content" => emoji, "actor" => actor}},
+ object
+ ) do
+ reactions = get_cached_emoji_reactions(object)
+
+ new_reactions =
+ case Enum.find_index(reactions, fn [candidate, _] -> emoji == candidate end) do
+ nil ->
+ reactions
+
+ index ->
+ List.update_at(
+ reactions,
+ index,
+ fn [emoji, users] -> [emoji, List.delete(users, actor)] end
+ )
+ |> Enum.reject(fn [_, users] -> Enum.empty?(users) end)
+ end
+
+ count = emoji_count(new_reactions)
+ update_element_in_object("reaction", new_reactions, object, count)
+ end
+
+ def get_cached_emoji_reactions(object) do
+ if is_list(object.data["reactions"]) do
+ object.data["reactions"]
+ else
+ []
+ end
+ end
+
@spec add_like_to_object(Activity.t(), Object.t()) ::
{:ok, Object.t()} | {:error, Ecto.Changeset.t()}
def add_like_to_object(%Activity{data: %{"actor" => actor}}, object) do
@doc """
Updates a follow activity's state (for locked accounts).
"""
- @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity} | {:error, any()}
+ @spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity | nil}
def update_follow_state_for_all(
%Activity{data: %{"actor" => actor, "object" => object}} = activity,
state
|> update(set: [data: fragment("jsonb_set(data, '{state}', ?)", ^state)])
|> Repo.update_all([])
- User.set_follow_state_cache(actor, object, state)
-
activity = Activity.get_by_id(activity.id)
{:ok, activity}
end
def update_follow_state(
- %Activity{data: %{"actor" => actor, "object" => object}} = activity,
+ %Activity{} = activity,
state
) do
new_data = Map.put(activity.data, "state", state)
changeset = Changeset.change(activity, data: new_data)
with {:ok, activity} <- Repo.update(changeset) do
- User.set_follow_state_cache(actor, object, state)
{:ok, activity}
end
end
|> Repo.one()
end
+ def fetch_latest_undo(%User{ap_id: ap_id}) do
+ "Undo"
+ |> Activity.Queries.by_type()
+ |> where(actor: ^ap_id)
+ |> order_by([activity], fragment("? desc nulls last", activity.id))
+ |> limit(1)
+ |> Repo.one()
+ end
+
+ def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do
+ %{data: %{"object" => object_ap_id}} = Activity.get_by_id(internal_activity_id)
+
+ "EmojiReact"
+ |> Activity.Queries.by_type()
+ |> where(actor: ^ap_id)
+ |> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji))
+ |> Activity.Queries.by_object_id(object_ap_id)
+ |> order_by([activity], fragment("? desc nulls last", activity.id))
+ |> limit(1)
+ |> Repo.one()
+ end
+
#### Announce-related helpers
@doc """
|> maybe_put("id", activity_id)
end
+ def make_undo_data(
+ %User{ap_id: actor, follower_address: follower_address},
+ %Activity{
+ data: %{"id" => undone_activity_id, "context" => context},
+ actor: undone_activity_actor
+ },
+ activity_id \\ nil
+ ) do
+ %{
+ "type" => "Undo",
+ "actor" => actor,
+ "object" => undone_activity_id,
+ "to" => [follower_address, undone_activity_actor],
+ "cc" => [Pleroma.Constants.as_public()],
+ "context" => context
+ }
+ |> maybe_put("id", activity_id)
+ end
+
@spec add_announce_to_object(Activity.t(), Object.t()) ::
{:ok, Object.t()} | {:error, Ecto.Changeset.t()}
def add_announce_to_object(
def make_flag_data(_, _), do: %{}
defp build_flag_object(%{account: account, statuses: statuses} = _) do
- [account.ap_id] ++
- Enum.map(statuses || [], fn act ->
- id =
- case act do
- %Activity{} = act -> act.data["id"]
- act when is_map(act) -> act["id"]
- act when is_binary(act) -> act
- end
-
- activity = Activity.get_by_ap_id_with_object(id)
- actor = User.get_by_ap_id(activity.object.data["actor"])
+ [account.ap_id] ++ build_flag_object(%{statuses: statuses})
+ end
+
+ defp build_flag_object(%{statuses: statuses}) do
+ Enum.map(statuses || [], &build_flag_object/1)
+ end
+
+ defp build_flag_object(act) when is_map(act) or is_binary(act) do
+ id =
+ case act do
+ %Activity{} = act -> act.data["id"]
+ act when is_map(act) -> act["id"]
+ act when is_binary(act) -> act
+ end
+ case Activity.get_by_ap_id_with_object(id) do
+ %Activity{} = activity ->
%{
"type" => "Note",
"id" => activity.data["id"],
"content" => activity.object.data["content"],
"published" => activity.object.data["published"],
- "actor" => AccountView.render("show.json", %{user: actor})
+ "actor" =>
+ AccountView.render("show.json", %{
+ user: User.get_by_ap_id(activity.object.data["actor"])
+ })
}
- end)
- end
- defp build_flag_object(_), do: []
-
- @doc """
- Fetches the OrderedCollection/OrderedCollectionPage from `from`, limiting the amount of pages fetched after
- the first one to `pages_left` pages.
- If the amount of pages is higher than the collection has, it returns whatever was there.
- """
- def fetch_ordered_collection(from, pages_left, acc \\ []) do
- with {:ok, response} <- Tesla.get(from),
- {:ok, collection} <- Jason.decode(response.body) do
- case collection["type"] do
- "OrderedCollection" ->
- # If we've encountered the OrderedCollection and not the page,
- # just call the same function on the page address
- fetch_ordered_collection(collection["first"], pages_left)
-
- "OrderedCollectionPage" ->
- if pages_left > 0 do
- # There are still more pages
- if Map.has_key?(collection, "next") do
- # There are still more pages, go deeper saving what we have into the accumulator
- fetch_ordered_collection(
- collection["next"],
- pages_left - 1,
- acc ++ collection["orderedItems"]
- )
- else
- # No more pages left, just return whatever we already have
- acc ++ collection["orderedItems"]
- end
- else
- # Got the amount of pages needed, add them all to the accumulator
- acc ++ collection["orderedItems"]
- end
-
- _ ->
- {:error, "Not an OrderedCollection or OrderedCollectionPage"}
- end
+ _ ->
+ %{"id" => id, "deleted" => true}
end
end
+ defp build_flag_object(_), do: []
+
#### Report-related helpers
def get_reports(params, page, page_size) do
params =
params
|> Map.put("type", "Flag")
|> Map.put("skip_preload", true)
+ |> Map.put("preload_report_notes", true)
|> Map.put("total", true)
|> Map.put("limit", page_size)
|> Map.put("offset", (page - 1) * page_size)
ActivityPub.fetch_activities([], params, :offset)
end
- @spec get_reports_grouped_by_status() :: %{
- required(:groups) => [
- %{
- required(:date) => String.t(),
- required(:account) => %User{},
- required(:status) => %Activity{},
- required(:actors) => [%User{}],
- required(:reports) => [%Activity{}]
- }
- ],
- required(:total) => integer
- }
- def get_reports_grouped_by_status do
- paginated_activities = get_reported_status_ids()
-
- groups =
- paginated_activities
- |> Enum.map(fn entry ->
- status =
- Activity
- |> Queries.by_ap_id(entry[:activity_id])
- |> Activity.with_preloaded_object(:left)
- |> Activity.with_preloaded_user_actor()
- |> Repo.one()
-
- reports = get_reports_by_status_id(status.data["id"])
-
- max_date =
- Enum.max_by(reports, &Pleroma.Web.CommonAPI.Utils.to_masto_date(&1.data["published"])).data[
- "published"
- ]
-
- actors = Enum.map(reports, & &1.user_actor)
-
- %{
- date: max_date,
- account: status.user_actor,
- status: status,
- actors: actors,
- reports: reports
- }
- end)
-
- %{
- groups: groups
- }
- end
-
- def get_reports_by_status_id(status_id) do
- from(a in Activity,
- where: fragment("(?)->>'type' = 'Flag'", a.data),
- where: fragment("(?)->'object' \\? (?)", a.data, ^status_id)
- )
- |> Activity.with_preloaded_user_actor()
- |> Repo.all()
- end
-
- @spec get_reported_status_ids() :: %{
- required(:items) => [%Activity{}],
- required(:total) => integer
- }
- def get_reported_status_ids do
- from(a in Activity,
- where: fragment("(?)->>'type' = 'Flag'", a.data),
- select: %{
- date: fragment("max(?->>'published') date", a.data),
- activity_id:
- fragment("jsonb_array_elements_text((? #- '{object,0}')->'object') activity_id", a.data)
- },
- group_by: fragment("activity_id"),
- order_by: fragment("date DESC")
- )
- |> Repo.all()
- end
-
def update_report_state(%Activity{} = activity, state)
when state in @strip_status_report_states do
{:ok, stripped_activity} = strip_report_status_data(activity)
def strip_report_status_data(activity) do
[actor | reported_activities] = activity.data["object"]
- stripped_activities = Enum.map(reported_activities, & &1["id"])
+
+ stripped_activities =
+ Enum.map(reported_activities, fn
+ act when is_map(act) -> act["id"]
+ act when is_binary(act) -> act
+ end)
+
new_data = put_in(activity.data, ["object"], [actor | stripped_activities])
{:ok, %{activity | data: new_data}}
projects / akkoma / blobdiff