diff options
Diffstat (limited to 'lib/pleroma/web/activity_pub')
17 files changed, 931 insertions, 449 deletions
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex index 4b865b342..7f6b59cc6 100644 --- a/lib/pleroma/web/activity_pub/activity_pub.ex +++ b/lib/pleroma/web/activity_pub/activity_pub.ex @@ -173,12 +173,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do BackgroundWorker.enqueue("fetch_data_for_activity", %{"activity_id" => activity.id}) - Notification.create_notifications(activity) - - conversation = create_or_bump_conversation(activity, map["actor"]) - participations = get_participations(conversation) - stream_out(activity) - stream_out_participations(participations) {:ok, activity} else %Activity{} = activity -> @@ -201,6 +195,15 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end + def notify_and_stream(activity) do + Notification.create_notifications(activity) + + conversation = create_or_bump_conversation(activity, activity.actor) + participations = get_participations(conversation) + stream_out(activity) + stream_out_participations(participations) + end + defp maybe_create_activity_expiration({:ok, %{data: %{"expires_at" => expires_at}} = activity}) do with {:ok, _} <- ActivityExpiration.create(activity, expires_at) do {:ok, activity} @@ -285,6 +288,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do _ <- increase_poll_votes_if_vote(create_data), {:quick_insert, false, activity} <- {:quick_insert, quick_insert?, activity}, {:ok, _actor} <- increase_note_count_if_public(actor, activity), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} else @@ -312,6 +316,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do additional ), {:ok, activity} <- insert(listen_data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} end @@ -336,6 +341,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do %{"to" => to, "type" => type, "actor" => actor.ap_id, "object" => object} |> Utils.maybe_put("id", activity_id), {:ok, activity} <- insert(data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} end @@ -355,140 +361,12 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do }, data <- Utils.maybe_put(data, "id", activity_id), {:ok, activity} <- insert(data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} end end - @spec react_with_emoji(User.t(), Object.t(), String.t(), keyword()) :: - {:ok, Activity.t(), Object.t()} | {:error, any()} - def react_with_emoji(user, object, emoji, options \\ []) do - with {:ok, result} <- - Repo.transaction(fn -> do_react_with_emoji(user, object, emoji, options) end) do - result - end - end - - defp do_react_with_emoji(user, object, emoji, options) do - with local <- Keyword.get(options, :local, true), - activity_id <- Keyword.get(options, :activity_id, nil), - true <- Pleroma.Emoji.is_unicode_emoji?(emoji), - reaction_data <- make_emoji_reaction_data(user, object, emoji, activity_id), - {:ok, activity} <- insert(reaction_data, local), - {:ok, object} <- add_emoji_reaction_to_object(activity, object), - :ok <- maybe_federate(activity) do - {:ok, activity, object} - else - false -> {:error, false} - {:error, error} -> Repo.rollback(error) - end - end - - @spec unreact_with_emoji(User.t(), String.t(), keyword()) :: - {:ok, Activity.t(), Object.t()} | {:error, any()} - def unreact_with_emoji(user, reaction_id, options \\ []) do - with {:ok, result} <- - Repo.transaction(fn -> do_unreact_with_emoji(user, reaction_id, options) end) do - result - end - end - - defp do_unreact_with_emoji(user, reaction_id, options) do - with local <- Keyword.get(options, :local, true), - activity_id <- Keyword.get(options, :activity_id, nil), - user_ap_id <- user.ap_id, - %Activity{actor: ^user_ap_id} = reaction_activity <- Activity.get_by_ap_id(reaction_id), - object <- Object.normalize(reaction_activity), - unreact_data <- make_undo_data(user, reaction_activity, activity_id), - {:ok, activity} <- insert(unreact_data, local), - {:ok, object} <- remove_emoji_reaction_from_object(reaction_activity, object), - :ok <- maybe_federate(activity) do - {:ok, activity, object} - else - {:error, error} -> Repo.rollback(error) - end - end - - @spec unlike(User.t(), Object.t(), String.t() | nil, boolean()) :: - {:ok, Activity.t(), Activity.t(), Object.t()} | {:ok, Object.t()} | {:error, any()} - def unlike(%User{} = actor, %Object{} = object, activity_id \\ nil, local \\ true) do - with {:ok, result} <- - Repo.transaction(fn -> do_unlike(actor, object, activity_id, local) end) do - result - end - end - - defp do_unlike(actor, object, activity_id, local) do - with %Activity{} = like_activity <- get_existing_like(actor.ap_id, object), - unlike_data <- make_unlike_data(actor, like_activity, activity_id), - {:ok, unlike_activity} <- insert(unlike_data, local), - {:ok, _activity} <- Repo.delete(like_activity), - {:ok, object} <- remove_like_from_object(like_activity, object), - :ok <- maybe_federate(unlike_activity) do - {:ok, unlike_activity, like_activity, object} - else - nil -> {:ok, object} - {:error, error} -> Repo.rollback(error) - end - end - - @spec announce(User.t(), Object.t(), String.t() | nil, boolean(), boolean()) :: - {:ok, Activity.t(), Object.t()} | {:error, any()} - def announce( - %User{ap_id: _} = user, - %Object{data: %{"id" => _}} = object, - activity_id \\ nil, - local \\ true, - public \\ true - ) do - with {:ok, result} <- - Repo.transaction(fn -> do_announce(user, object, activity_id, local, public) end) do - result - end - end - - defp do_announce(user, object, activity_id, local, public) do - with true <- is_announceable?(object, user, public), - object <- Object.get_by_id(object.id), - announce_data <- make_announce_data(user, object, activity_id, public), - {:ok, activity} <- insert(announce_data, local), - {:ok, object} <- add_announce_to_object(activity, object), - :ok <- maybe_federate(activity) do - {:ok, activity, object} - else - false -> {:error, false} - {:error, error} -> Repo.rollback(error) - end - end - - @spec unannounce(User.t(), Object.t(), String.t() | nil, boolean()) :: - {:ok, Activity.t(), Object.t()} | {:ok, Object.t()} | {:error, any()} - def unannounce( - %User{} = actor, - %Object{} = object, - activity_id \\ nil, - local \\ true - ) do - with {:ok, result} <- - Repo.transaction(fn -> do_unannounce(actor, object, activity_id, local) end) do - result - end - end - - defp do_unannounce(actor, object, activity_id, local) do - with %Activity{} = announce_activity <- get_existing_announce(actor.ap_id, object), - unannounce_data <- make_unannounce_data(actor, announce_activity, activity_id), - {:ok, unannounce_activity} <- insert(unannounce_data, local), - :ok <- maybe_federate(unannounce_activity), - {:ok, _activity} <- Repo.delete(announce_activity), - {:ok, object} <- remove_announce_from_object(announce_activity, object) do - {:ok, unannounce_activity, object} - else - nil -> {:ok, object} - {:error, error} -> Repo.rollback(error) - end - end - @spec follow(User.t(), User.t(), String.t() | nil, boolean()) :: {:ok, Activity.t()} | {:error, any()} def follow(follower, followed, activity_id \\ nil, local \\ true) do @@ -501,6 +379,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp do_follow(follower, followed, activity_id, local) do with data <- make_follow_data(follower, followed, activity_id), {:ok, activity} <- insert(data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} else @@ -522,6 +401,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do {:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"), unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id), {:ok, activity} <- insert(unfollow_data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} else @@ -530,67 +410,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end - @spec delete(User.t() | Object.t(), keyword()) :: {:ok, User.t() | Object.t()} | {:error, any()} - def delete(entity, options \\ []) do - with {:ok, result} <- Repo.transaction(fn -> do_delete(entity, options) end) do - result - end - end - - defp do_delete(%User{ap_id: ap_id, follower_address: follower_address} = user, _) do - with data <- %{ - "to" => [follower_address], - "type" => "Delete", - "actor" => ap_id, - "object" => %{"type" => "Person", "id" => ap_id} - }, - {:ok, activity} <- insert(data, true, true, true), - :ok <- maybe_federate(activity) do - {:ok, user} - end - end - - defp do_delete(%Object{data: %{"id" => id, "actor" => actor}} = object, options) do - local = Keyword.get(options, :local, true) - activity_id = Keyword.get(options, :activity_id, nil) - actor = Keyword.get(options, :actor, actor) - - user = User.get_cached_by_ap_id(actor) - to = (object.data["to"] || []) ++ (object.data["cc"] || []) - - with create_activity <- Activity.get_create_by_object_ap_id(id), - data <- - %{ - "type" => "Delete", - "actor" => actor, - "object" => id, - "to" => to, - "deleted_activity_id" => create_activity && create_activity.id - } - |> maybe_put("id", activity_id), - {:ok, activity} <- insert(data, local, false), - {:ok, object, _create_activity} <- Object.delete(object), - stream_out_participations(object, user), - _ <- decrease_replies_count_if_reply(object), - {:ok, _actor} <- decrease_note_count_if_public(user, object), - :ok <- maybe_federate(activity) do - {:ok, activity} - else - {:error, error} -> - Repo.rollback(error) - end - end - - defp do_delete(%Object{data: %{"type" => "Tombstone", "id" => ap_id}}, _) do - activity = - ap_id - |> Activity.Queries.by_object_id() - |> Activity.Queries.by_type("Delete") - |> Repo.one() - - {:ok, activity} - end - @spec block(User.t(), User.t(), String.t() | nil, boolean()) :: {:ok, Activity.t()} | {:error, any()} def block(blocker, blocked, activity_id \\ nil, local \\ true) do @@ -601,7 +420,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end defp do_block(blocker, blocked, activity_id, local) do - outgoing_blocks = Config.get([:activitypub, :outgoing_blocks]) unfollow_blocked = Config.get([:activitypub, :unfollow_blocked]) if unfollow_blocked do @@ -609,9 +427,9 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do if follow_activity, do: unfollow(blocker, blocked, nil, local) end - with true <- outgoing_blocks, - block_data <- make_block_data(blocker, blocked, activity_id), + with block_data <- make_block_data(blocker, blocked, activity_id), {:ok, activity} <- insert(block_data, local), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity} else @@ -619,27 +437,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do end end - @spec unblock(User.t(), User.t(), String.t() | nil, boolean()) :: - {:ok, Activity.t()} | {:error, any()} | nil - def unblock(blocker, blocked, activity_id \\ nil, local \\ true) do - with {:ok, result} <- - Repo.transaction(fn -> do_unblock(blocker, blocked, activity_id, local) end) do - result - end - end - - defp do_unblock(blocker, blocked, activity_id, local) do - with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked), - unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id), - {:ok, activity} <- insert(unblock_data, local), - :ok <- maybe_federate(activity) do - {:ok, activity} - else - nil -> nil - {:error, error} -> Repo.rollback(error) - end - end - @spec flag(map()) :: {:ok, Activity.t()} | {:error, any()} def flag( %{ @@ -666,6 +463,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do with flag_data <- make_flag_data(params, additional), {:ok, activity} <- insert(flag_data, local), {:ok, stripped_activity} <- strip_report_status_data(activity), + _ <- notify_and_stream(activity), :ok <- maybe_federate(stripped_activity) do User.all_superusers() |> Enum.filter(fn user -> not is_nil(user.email) end) @@ -689,7 +487,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do } with true <- origin.ap_id in target.also_known_as, - {:ok, activity} <- insert(params, local) do + {:ok, activity} <- insert(params, local), + _ <- notify_and_stream(activity) do maybe_federate(activity) BackgroundWorker.enqueue("move_following", %{ @@ -750,14 +549,27 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do |> Repo.one() end - @spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()] - def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do + @spec fetch_public_or_unlisted_activities(map(), Pagination.type()) :: [Activity.t()] + def fetch_public_or_unlisted_activities(opts \\ %{}, pagination \\ :keyset) do opts = Map.drop(opts, ["user"]) - [Constants.as_public()] - |> fetch_activities_query(opts) - |> restrict_unlisted() - |> Pagination.fetch_paginated(opts, pagination) + query = fetch_activities_query([Constants.as_public()], opts) + + query = + if opts["restrict_unlisted"] do + restrict_unlisted(query) + else + query + end + + Pagination.fetch_paginated(query, opts, pagination) + end + + @spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()] + def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do + opts + |> Map.put("restrict_unlisted", true) + |> fetch_public_or_unlisted_activities(pagination) end @valid_visibilities ~w[direct unlisted public private] @@ -1357,7 +1169,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do |> Activity.with_joined_object() |> Object.with_joined_activity() |> select([_like, object, activity], %{activity | object: object}) - |> order_by([like, _, _], desc: like.id) + |> order_by([like, _, _], desc_nulls_last: like.id) |> Pagination.fetch_paginated( Map.merge(params, %{"skip_order" => true}), pagination, diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex index f607931ab..28727d619 100644 --- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex +++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex @@ -21,6 +21,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do alias Pleroma.Web.ActivityPub.UserView alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Visibility + alias Pleroma.Web.Endpoint alias Pleroma.Web.FederatingPlug alias Pleroma.Web.Federator @@ -34,7 +35,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do plug( EnsureAuthenticatedPlug, - [unless_func: &FederatingPlug.federating?/0] when action not in @federating_only_actions + [unless_func: &FederatingPlug.federating?/1] when action not in @federating_only_actions ) # Note: :following and :followers must be served even without authentication (as via :api) @@ -75,8 +76,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do end end - def object(conn, %{"uuid" => uuid}) do - with ap_id <- o_status_url(conn, :object, uuid), + def object(conn, _) do + with ap_id <- Endpoint.url() <> conn.request_path, %Object{} = object <- Object.get_cached_by_ap_id(ap_id), {_, true} <- {:public?, Visibility.is_public?(object)} do conn @@ -101,8 +102,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do conn end - def activity(conn, %{"uuid" => uuid}) do - with ap_id <- o_status_url(conn, :activity, uuid), + def activity(conn, _params) do + with ap_id <- Endpoint.url() <> conn.request_path, %Activity{} = activity <- Activity.normalize(ap_id), {_, true} <- {:public?, Visibility.is_public?(activity)} do conn @@ -396,7 +397,10 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do |> json(err) end - defp handle_user_activity(%User{} = user, %{"type" => "Create"} = params) do + defp handle_user_activity( + %User{} = user, + %{"type" => "Create", "object" => %{"type" => "Note"}} = params + ) do object = params["object"] |> Map.merge(Map.take(params, ["to", "cc"])) @@ -415,7 +419,8 @@ defmodule Pleroma.Web.ActivityPub.ActivityPubController do defp handle_user_activity(%User{} = user, %{"type" => "Delete"} = params) do with %Object{} = object <- Object.normalize(params["object"]), true <- user.is_moderator || user.ap_id == object.data["actor"], - {:ok, delete} <- ActivityPub.delete(object) do + {:ok, delete_data, _} <- Builder.delete(user, object.data["id"]), + {:ok, delete, _} <- Pipeline.common_pipeline(delete_data, local: true) do {:ok, delete} else _ -> {:error, dgettext("errors", "Can't delete object")} diff --git a/lib/pleroma/web/activity_pub/builder.ex b/lib/pleroma/web/activity_pub/builder.ex index 429a510b8..51b74414a 100644 --- a/lib/pleroma/web/activity_pub/builder.ex +++ b/lib/pleroma/web/activity_pub/builder.ex @@ -7,11 +7,115 @@ defmodule Pleroma.Web.ActivityPub.Builder do alias Pleroma.Object alias Pleroma.User + alias Pleroma.Web.ActivityPub.Relay alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Visibility + require Pleroma.Constants + + @spec emoji_react(User.t(), Object.t(), String.t()) :: {:ok, map(), keyword()} + def emoji_react(actor, object, emoji) do + with {:ok, data, meta} <- object_action(actor, object) do + data = + data + |> Map.put("content", emoji) + |> Map.put("type", "EmojiReact") + + {:ok, data, meta} + end + end + + @spec undo(User.t(), Activity.t()) :: {:ok, map(), keyword()} + def undo(actor, object) do + {:ok, + %{ + "id" => Utils.generate_activity_id(), + "actor" => actor.ap_id, + "type" => "Undo", + "object" => object.data["id"], + "to" => object.data["to"] || [], + "cc" => object.data["cc"] || [] + }, []} + end + + @spec delete(User.t(), String.t()) :: {:ok, map(), keyword()} + def delete(actor, object_id) do + object = Object.normalize(object_id, false) + + user = !object && User.get_cached_by_ap_id(object_id) + + to = + case {object, user} do + {%Object{}, _} -> + # We are deleting an object, address everyone who was originally mentioned + (object.data["to"] || []) ++ (object.data["cc"] || []) + + {_, %User{follower_address: follower_address}} -> + # We are deleting a user, address the followers of that user + [follower_address] + end + + {:ok, + %{ + "id" => Utils.generate_activity_id(), + "actor" => actor.ap_id, + "object" => object_id, + "to" => to, + "type" => "Delete" + }, []} + end + + @spec tombstone(String.t(), String.t()) :: {:ok, map(), keyword()} + def tombstone(actor, id) do + {:ok, + %{ + "id" => id, + "actor" => actor, + "type" => "Tombstone" + }, []} + end + @spec like(User.t(), Object.t()) :: {:ok, map(), keyword()} def like(actor, object) do + with {:ok, data, meta} <- object_action(actor, object) do + data = + data + |> Map.put("type", "Like") + + {:ok, data, meta} + end + end + + @spec announce(User.t(), Object.t(), keyword()) :: {:ok, map(), keyword()} + def announce(actor, object, options \\ []) do + public? = Keyword.get(options, :public, false) + + to = + cond do + actor.ap_id == Relay.relay_ap_id() -> + [actor.follower_address] + + public? -> + [actor.follower_address, object.data["actor"], Pleroma.Constants.as_public()] + + true -> + [actor.follower_address, object.data["actor"]] + end + + {:ok, + %{ + "id" => Utils.generate_activity_id(), + "actor" => actor.ap_id, + "object" => object.data["id"], + "to" => to, + "context" => object.data["context"], + "type" => "Announce", + "published" => Utils.make_date() + }, []} + end + + @spec object_action(User.t(), Object.t()) :: {:ok, map(), keyword()} + defp object_action(actor, object) do object_actor = User.get_cached_by_ap_id(object.data["actor"]) # Address the actor of the object, and our actor's follower collection if the post is public. @@ -33,7 +137,6 @@ defmodule Pleroma.Web.ActivityPub.Builder do %{ "id" => Utils.generate_activity_id(), "actor" => actor.ap_id, - "type" => "Like", "object" => object.data["id"], "to" => to, "cc" => cc, diff --git a/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex b/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex new file mode 100644 index 000000000..2858af9eb --- /dev/null +++ b/lib/pleroma/web/activity_pub/mrf/steal_emoji_policy.ex @@ -0,0 +1,97 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.MRF.StealEmojiPolicy do + require Logger + + alias Pleroma.Config + + @moduledoc "Detect new emojis by their shortcode and steals them" + @behaviour Pleroma.Web.ActivityPub.MRF + + defp remote_host?(host), do: host != Config.get([Pleroma.Web.Endpoint, :url, :host]) + + defp accept_host?(host), do: host in Config.get([:mrf_steal_emoji, :hosts], []) + + defp steal_emoji({shortcode, url}) do + url = Pleroma.Web.MediaProxy.url(url) + {:ok, response} = Pleroma.HTTP.get(url) + size_limit = Config.get([:mrf_steal_emoji, :size_limit], 50_000) + + if byte_size(response.body) <= size_limit do + emoji_dir_path = + Config.get( + [:mrf_steal_emoji, :path], + Path.join(Config.get([:instance, :static_dir]), "emoji/stolen") + ) + + extension = + url + |> URI.parse() + |> Map.get(:path) + |> Path.basename() + |> Path.extname() + + file_path = Path.join([emoji_dir_path, shortcode <> (extension || ".png")]) + + try do + :ok = File.write(file_path, response.body) + + shortcode + rescue + e -> + Logger.warn("MRF.StealEmojiPolicy: Failed to write to #{file_path}: #{inspect(e)}") + nil + end + else + Logger.debug( + "MRF.StealEmojiPolicy: :#{shortcode}: at #{url} (#{byte_size(response.body)} B) over size limit (#{ + size_limit + } B)" + ) + + nil + end + rescue + e -> + Logger.warn("MRF.StealEmojiPolicy: Failed to fetch #{url}: #{inspect(e)}") + nil + end + + @impl true + def filter(%{"object" => %{"emoji" => foreign_emojis, "actor" => actor}} = message) do + host = URI.parse(actor).host + + if remote_host?(host) and accept_host?(host) do + installed_emoji = Pleroma.Emoji.get_all() |> Enum.map(fn {k, _} -> k end) + + new_emojis = + foreign_emojis + |> Enum.filter(fn {shortcode, _url} -> shortcode not in installed_emoji end) + |> Enum.filter(fn {shortcode, _url} -> + reject_emoji? = + Config.get([:mrf_steal_emoji, :rejected_shortcodes], []) + |> Enum.find(false, fn regex -> String.match?(shortcode, regex) end) + + !reject_emoji? + end) + |> Enum.map(&steal_emoji(&1)) + |> Enum.filter(& &1) + + if !Enum.empty?(new_emojis) do + Logger.info("Stole new emojis: #{inspect(new_emojis)}") + Pleroma.Emoji.reload() + end + end + + {:ok, message} + end + + def filter(message), do: {:ok, message} + + @impl true + def describe do + {:ok, %{}} + end +end diff --git a/lib/pleroma/web/activity_pub/object_validator.ex b/lib/pleroma/web/activity_pub/object_validator.ex index dc4bce059..2599067a8 100644 --- a/lib/pleroma/web/activity_pub/object_validator.ex +++ b/lib/pleroma/web/activity_pub/object_validator.ex @@ -11,11 +11,36 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do alias Pleroma.Object alias Pleroma.User + alias Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator + alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator + alias Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator alias Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator + alias Pleroma.Web.ActivityPub.ObjectValidators.Types + alias Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator @spec validate(map(), keyword()) :: {:ok, map(), keyword()} | {:error, any()} def validate(object, meta) + def validate(%{"type" => "Undo"} = object, meta) do + with {:ok, object} <- + object + |> UndoValidator.cast_and_validate() + |> Ecto.Changeset.apply_action(:insert) do + object = stringify_keys(object) + {:ok, object, meta} + end + end + + def validate(%{"type" => "Delete"} = object, meta) do + with cng <- DeleteValidator.cast_and_validate(object), + do_not_federate <- DeleteValidator.do_not_federate?(cng), + {:ok, object} <- Ecto.Changeset.apply_action(cng, :insert) do + object = stringify_keys(object) + meta = Keyword.put(meta, :do_not_federate, do_not_federate) + {:ok, object, meta} + end + end + def validate(%{"type" => "Like"} = object, meta) do with {:ok, object} <- object |> LikeValidator.cast_and_validate() |> Ecto.Changeset.apply_action(:insert) do @@ -24,14 +49,46 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do end end + def validate(%{"type" => "EmojiReact"} = object, meta) do + with {:ok, object} <- + object + |> EmojiReactValidator.cast_and_validate() + |> Ecto.Changeset.apply_action(:insert) do + object = stringify_keys(object |> Map.from_struct()) + {:ok, object, meta} + end + end + + def validate(%{"type" => "Announce"} = object, meta) do + with {:ok, object} <- + object + |> AnnounceValidator.cast_and_validate() + |> Ecto.Changeset.apply_action(:insert) do + object = stringify_keys(object |> Map.from_struct()) + {:ok, object, meta} + end + end + + def stringify_keys(%{__struct__: _} = object) do + object + |> Map.from_struct() + |> stringify_keys + end + def stringify_keys(object) do object |> Map.new(fn {key, val} -> {to_string(key), val} end) end + def fetch_actor(object) do + with {:ok, actor} <- Types.ObjectID.cast(object["actor"]) do + User.get_or_fetch_by_ap_id(actor) + end + end + def fetch_actor_and_object(object) do - User.get_or_fetch_by_ap_id(object["actor"]) - Object.normalize(object["object"]) + fetch_actor(object) + Object.normalize(object["object"], true) :ok end end diff --git a/lib/pleroma/web/activity_pub/object_validators/announce_validator.ex b/lib/pleroma/web/activity_pub/object_validators/announce_validator.ex new file mode 100644 index 000000000..40f861f47 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/announce_validator.ex @@ -0,0 +1,101 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.ObjectValidators.AnnounceValidator do + use Ecto.Schema + + alias Pleroma.Object + alias Pleroma.User + alias Pleroma.Web.ActivityPub.ObjectValidators.Types + alias Pleroma.Web.ActivityPub.Utils + alias Pleroma.Web.ActivityPub.Visibility + + import Ecto.Changeset + import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations + + require Pleroma.Constants + + @primary_key false + + embedded_schema do + field(:id, Types.ObjectID, primary_key: true) + field(:type, :string) + field(:object, Types.ObjectID) + field(:actor, Types.ObjectID) + field(:context, :string, autogenerate: {Utils, :generate_context_id, []}) + field(:to, Types.Recipients, default: []) + field(:cc, Types.Recipients, default: []) + field(:published, Types.DateTime) + end + + def cast_and_validate(data) do + data + |> cast_data() + |> validate_data() + end + + def cast_data(data) do + %__MODULE__{} + |> changeset(data) + end + + def changeset(struct, data) do + struct + |> cast(data, __schema__(:fields)) + |> fix_after_cast() + end + + def fix_after_cast(cng) do + cng + end + + def validate_data(data_cng) do + data_cng + |> validate_inclusion(:type, ["Announce"]) + |> validate_required([:id, :type, :object, :actor, :to, :cc]) + |> validate_actor_presence() + |> validate_object_presence() + |> validate_existing_announce() + |> validate_announcable() + end + + def validate_announcable(cng) do + with actor when is_binary(actor) <- get_field(cng, :actor), + object when is_binary(object) <- get_field(cng, :object), + %User{} = actor <- User.get_cached_by_ap_id(actor), + %Object{} = object <- Object.get_cached_by_ap_id(object), + false <- Visibility.is_public?(object) do + same_actor = object.data["actor"] == actor.ap_id + is_public = Pleroma.Constants.as_public() in (get_field(cng, :to) ++ get_field(cng, :cc)) + + cond do + same_actor && is_public -> + cng + |> add_error(:actor, "can not announce this object publicly") + + !same_actor -> + cng + |> add_error(:actor, "can not announce this object") + + true -> + cng + end + else + _ -> cng + end + end + + def validate_existing_announce(cng) do + actor = get_field(cng, :actor) + object = get_field(cng, :object) + + if actor && object && Utils.get_existing_announce(actor, %{data: %{"id" => object}}) do + cng + |> add_error(:actor, "already announced this object") + |> add_error(:object, "already announced by this actor") + else + cng + end + end +end diff --git a/lib/pleroma/web/activity_pub/object_validators/common_validations.ex b/lib/pleroma/web/activity_pub/object_validators/common_validations.ex index b479c3918..aeef31945 100644 --- a/lib/pleroma/web/activity_pub/object_validators/common_validations.ex +++ b/lib/pleroma/web/activity_pub/object_validators/common_validations.ex @@ -5,10 +5,33 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations do import Ecto.Changeset + alias Pleroma.Activity alias Pleroma.Object alias Pleroma.User - def validate_actor_presence(cng, field_name \\ :actor) do + def validate_recipients_presence(cng, fields \\ [:to, :cc]) do + non_empty = + fields + |> Enum.map(fn field -> get_field(cng, field) end) + |> Enum.any?(fn + [] -> false + _ -> true + end) + + if non_empty do + cng + else + fields + |> Enum.reduce(cng, fn field, cng -> + cng + |> add_error(field, "no recipients in any field") + end) + end + end + + def validate_actor_presence(cng, options \\ []) do + field_name = Keyword.get(options, :field_name, :actor) + cng |> validate_change(field_name, fn field_name, actor -> if User.get_cached_by_ap_id(actor) do @@ -19,14 +42,39 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations do end) end - def validate_object_presence(cng, field_name \\ :object) do + def validate_object_presence(cng, options \\ []) do + field_name = Keyword.get(options, :field_name, :object) + allowed_types = Keyword.get(options, :allowed_types, false) + cng - |> validate_change(field_name, fn field_name, object -> - if Object.get_cached_by_ap_id(object) do - [] - else - [{field_name, "can't find object"}] + |> validate_change(field_name, fn field_name, object_id -> + object = Object.get_cached_by_ap_id(object_id) || Activity.get_by_ap_id(object_id) + + cond do + !object -> + [{field_name, "can't find object"}] + + object && allowed_types && object.data["type"] not in allowed_types -> + [{field_name, "object not in allowed types"}] + + true -> + [] end end) end + + def validate_object_or_user_presence(cng, options \\ []) do + field_name = Keyword.get(options, :field_name, :object) + options = Keyword.put(options, :field_name, field_name) + + actor_cng = + cng + |> validate_actor_presence(options) + + object_cng = + cng + |> validate_object_presence(options) + + if actor_cng.valid?, do: actor_cng, else: object_cng + end end diff --git a/lib/pleroma/web/activity_pub/object_validators/delete_validator.ex b/lib/pleroma/web/activity_pub/object_validators/delete_validator.ex new file mode 100644 index 000000000..f42c03510 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/delete_validator.ex @@ -0,0 +1,100 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator do + use Ecto.Schema + + alias Pleroma.Activity + alias Pleroma.User + alias Pleroma.Web.ActivityPub.ObjectValidators.Types + + import Ecto.Changeset + import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations + + @primary_key false + + embedded_schema do + field(:id, Types.ObjectID, primary_key: true) + field(:type, :string) + field(:actor, Types.ObjectID) + field(:to, Types.Recipients, default: []) + field(:cc, Types.Recipients, default: []) + field(:deleted_activity_id, Types.ObjectID) + field(:object, Types.ObjectID) + end + + def cast_data(data) do + %__MODULE__{} + |> cast(data, __schema__(:fields)) + end + + def add_deleted_activity_id(cng) do + object = + cng + |> get_field(:object) + + with %Activity{id: id} <- Activity.get_create_by_object_ap_id(object) do + cng + |> put_change(:deleted_activity_id, id) + else + _ -> cng + end + end + + @deletable_types ~w{ + Answer + Article + Audio + Event + Note + Page + Question + Video + Tombstone + } + def validate_data(cng) do + cng + |> validate_required([:id, :type, :actor, :to, :cc, :object]) + |> validate_inclusion(:type, ["Delete"]) + |> validate_actor_presence() + |> validate_deletion_rights() + |> validate_object_or_user_presence(allowed_types: @deletable_types) + |> add_deleted_activity_id() + end + + def do_not_federate?(cng) do + !same_domain?(cng) + end + + defp same_domain?(cng) do + actor_uri = + cng + |> get_field(:actor) + |> URI.parse() + + object_uri = + cng + |> get_field(:object) + |> URI.parse() + + object_uri.host == actor_uri.host + end + + def validate_deletion_rights(cng) do + actor = User.get_cached_by_ap_id(get_field(cng, :actor)) + + if User.superuser?(actor) || same_domain?(cng) do + cng + else + cng + |> add_error(:actor, "is not allowed to delete object") + end + end + + def cast_and_validate(data) do + data + |> cast_data + |> validate_data + end +end diff --git a/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex b/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex new file mode 100644 index 000000000..e87519c59 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/emoji_react_validator.ex @@ -0,0 +1,81 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.ObjectValidators.EmojiReactValidator do + use Ecto.Schema + + alias Pleroma.Object + alias Pleroma.Web.ActivityPub.ObjectValidators.Types + + import Ecto.Changeset + import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations + + @primary_key false + + embedded_schema do + field(:id, Types.ObjectID, primary_key: true) + field(:type, :string) + field(:object, Types.ObjectID) + field(:actor, Types.ObjectID) + field(:context, :string) + field(:content, :string) + field(:to, {:array, :string}, default: []) + field(:cc, {:array, :string}, default: []) + end + + def cast_and_validate(data) do + data + |> cast_data() + |> validate_data() + end + + def cast_data(data) do + %__MODULE__{} + |> changeset(data) + end + + def changeset(struct, data) do + struct + |> cast(data, __schema__(:fields)) + |> fix_after_cast() + end + + def fix_after_cast(cng) do + cng + |> fix_context() + end + + def fix_context(cng) do + object = get_field(cng, :object) + + with nil <- get_field(cng, :context), + %Object{data: %{"context" => context}} <- Object.get_cached_by_ap_id(object) do + cng + |> put_change(:context, context) + else + _ -> + cng + end + end + + def validate_emoji(cng) do + content = get_field(cng, :content) + + if Pleroma.Emoji.is_unicode_emoji?(content) do + cng + else + cng + |> add_error(:content, "must be a single character emoji") + end + end + + def validate_data(data_cng) do + data_cng + |> validate_inclusion(:type, ["EmojiReact"]) + |> validate_required([:id, :type, :object, :actor, :context, :to, :cc, :content]) + |> validate_actor_presence() + |> validate_object_presence() + |> validate_emoji() + end +end diff --git a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex index 1bce739bd..034f25492 100644 --- a/lib/pleroma/web/activity_pub/object_validators/like_validator.ex +++ b/lib/pleroma/web/activity_pub/object_validators/like_validator.ex @@ -20,8 +20,8 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidators.LikeValidator do field(:object, Types.ObjectID) field(:actor, Types.ObjectID) field(:context, :string) - field(:to, {:array, :string}, default: []) - field(:cc, {:array, :string}, default: []) + field(:to, Types.Recipients, default: []) + field(:cc, Types.Recipients, default: []) end def cast_and_validate(data) do diff --git a/lib/pleroma/web/activity_pub/object_validators/types/recipients.ex b/lib/pleroma/web/activity_pub/object_validators/types/recipients.ex new file mode 100644 index 000000000..48fe61e1a --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/types/recipients.ex @@ -0,0 +1,34 @@ +defmodule Pleroma.Web.ActivityPub.ObjectValidators.Types.Recipients do + use Ecto.Type + + alias Pleroma.Web.ActivityPub.ObjectValidators.Types.ObjectID + + def type, do: {:array, ObjectID} + + def cast(object) when is_binary(object) do + cast([object]) + end + + def cast(data) when is_list(data) do + data + |> Enum.reduce({:ok, []}, fn element, acc -> + case {acc, ObjectID.cast(element)} do + {:error, _} -> :error + {_, :error} -> :error + {{:ok, list}, {:ok, id}} -> {:ok, [id | list]} + end + end) + end + + def cast(_) do + :error + end + + def dump(data) do + {:ok, data} + end + + def load(data) do + {:ok, data} + end +end diff --git a/lib/pleroma/web/activity_pub/object_validators/undo_validator.ex b/lib/pleroma/web/activity_pub/object_validators/undo_validator.ex new file mode 100644 index 000000000..d0ba418e8 --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/undo_validator.ex @@ -0,0 +1,62 @@ +# Pleroma: A lightweight social networking server +# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/> +# SPDX-License-Identifier: AGPL-3.0-only + +defmodule Pleroma.Web.ActivityPub.ObjectValidators.UndoValidator do + use Ecto.Schema + + alias Pleroma.Activity + alias Pleroma.Web.ActivityPub.ObjectValidators.Types + + import Ecto.Changeset + import Pleroma.Web.ActivityPub.ObjectValidators.CommonValidations + + @primary_key false + + embedded_schema do + field(:id, Types.ObjectID, primary_key: true) + field(:type, :string) + field(:object, Types.ObjectID) + field(:actor, Types.ObjectID) + field(:to, {:array, :string}, default: []) + field(:cc, {:array, :string}, default: []) + end + + def cast_and_validate(data) do + data + |> cast_data() + |> validate_data() + end + + def cast_data(data) do + %__MODULE__{} + |> changeset(data) + end + + def changeset(struct, data) do + struct + |> cast(data, __schema__(:fields)) + end + + def validate_data(data_cng) do + data_cng + |> validate_inclusion(:type, ["Undo"]) + |> validate_required([:id, :type, :object, :actor, :to, :cc]) + |> validate_actor_presence() + |> validate_object_presence() + |> validate_undo_rights() + end + + def validate_undo_rights(cng) do + actor = get_field(cng, :actor) + object = get_field(cng, :object) + + with %Activity{data: %{"actor" => object_actor}} <- Activity.get_by_ap_id(object), + true <- object_actor != actor do + cng + |> add_error(:actor, "not the same as object actor") + else + _ -> cng + end + end +end diff --git a/lib/pleroma/web/activity_pub/pipeline.ex b/lib/pleroma/web/activity_pub/pipeline.ex index d5abb7567..0c54c4b23 100644 --- a/lib/pleroma/web/activity_pub/pipeline.ex +++ b/lib/pleroma/web/activity_pub/pipeline.ex @@ -4,6 +4,7 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do alias Pleroma.Activity + alias Pleroma.Config alias Pleroma.Object alias Pleroma.Repo alias Pleroma.Web.ActivityPub.ActivityPub @@ -44,7 +45,9 @@ defmodule Pleroma.Web.ActivityPub.Pipeline do defp maybe_federate(%Activity{} = activity, meta) do with {:ok, local} <- Keyword.fetch(meta, :local) do - if local do + do_not_federate = meta[:do_not_federate] || !Config.get([:instance, :federating]) + + if !do_not_federate && local do Federator.publish(activity) {:ok, :federated} else diff --git a/lib/pleroma/web/activity_pub/relay.ex b/lib/pleroma/web/activity_pub/relay.ex index 729c23af7..484178edd 100644 --- a/lib/pleroma/web/activity_pub/relay.ex +++ b/lib/pleroma/web/activity_pub/relay.ex @@ -4,9 +4,10 @@ defmodule Pleroma.Web.ActivityPub.Relay do alias Pleroma.Activity - alias Pleroma.Object alias Pleroma.User alias Pleroma.Web.ActivityPub.ActivityPub + alias Pleroma.Web.ActivityPub.Visibility + alias Pleroma.Web.CommonAPI require Logger @relay_nickname "relay" @@ -48,11 +49,11 @@ defmodule Pleroma.Web.ActivityPub.Relay do end end - @spec publish(any()) :: {:ok, Activity.t(), Object.t()} | {:error, any()} + @spec publish(any()) :: {:ok, Activity.t()} | {:error, any()} def publish(%Activity{data: %{"type" => "Create"}} = activity) do with %User{} = user <- get_actor(), - %Object{} = object <- Object.normalize(activity) do - ActivityPub.announce(user, object, nil, true, false) + true <- Visibility.is_public?(activity) do + CommonAPI.repeat(activity.id, user) else error -> format_error(error) end diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex index 6a8f1af96..fb6275450 100644 --- a/lib/pleroma/web/activity_pub/side_effects.ex +++ b/lib/pleroma/web/activity_pub/side_effects.ex @@ -5,8 +5,12 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do liked object, a `Follow` activity will add the user to the follower collection, and so on. """ + alias Pleroma.Activity alias Pleroma.Notification alias Pleroma.Object + alias Pleroma.Repo + alias Pleroma.User + alias Pleroma.Web.ActivityPub.ActivityPub alias Pleroma.Web.ActivityPub.Utils def handle(object, meta \\ []) @@ -23,8 +27,125 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do {:ok, object, meta} end + # Tasks this handles: + # - Add announce to object + # - Set up notification + # - Stream out the announce + def handle(%{data: %{"type" => "Announce"}} = object, meta) do + announced_object = Object.get_by_ap_id(object.data["object"]) + user = User.get_cached_by_ap_id(object.data["actor"]) + + Utils.add_announce_to_object(object, announced_object) + + if !User.is_internal_user?(user) do + Notification.create_notifications(object) + ActivityPub.stream_out(object) + end + + {:ok, object, meta} + end + + def handle(%{data: %{"type" => "Undo", "object" => undone_object}} = object, meta) do + with undone_object <- Activity.get_by_ap_id(undone_object), + :ok <- handle_undoing(undone_object) do + {:ok, object, meta} + end + end + + # Tasks this handles: + # - Add reaction to object + # - Set up notification + def handle(%{data: %{"type" => "EmojiReact"}} = object, meta) do + reacted_object = Object.get_by_ap_id(object.data["object"]) + Utils.add_emoji_reaction_to_object(object, reacted_object) + + Notification.create_notifications(object) + + {:ok, object, meta} + end + + # Tasks this handles: + # - Delete and unpins the create activity + # - Replace object with Tombstone + # - Set up notification + # - Reduce the user note count + # - Reduce the reply count + # - Stream out the activity + def handle(%{data: %{"type" => "Delete", "object" => deleted_object}} = object, meta) do + deleted_object = + Object.normalize(deleted_object, false) || User.get_cached_by_ap_id(deleted_object) + + result = + case deleted_object do + %Object{} -> + with {:ok, deleted_object, activity} <- Object.delete(deleted_object), + %User{} = user <- User.get_cached_by_ap_id(deleted_object.data["actor"]) do + User.remove_pinnned_activity(user, activity) + + {:ok, user} = ActivityPub.decrease_note_count_if_public(user, deleted_object) + + if in_reply_to = deleted_object.data["inReplyTo"] do + Object.decrease_replies_count(in_reply_to) + end + + ActivityPub.stream_out(object) + ActivityPub.stream_out_participations(deleted_object, user) + :ok + end + + %User{} -> + with {:ok, _} <- User.delete(deleted_object) do + :ok + end + end + + if result == :ok do + Notification.create_notifications(object) + {:ok, object, meta} + else + {:error, result} + end + end + # Nothing to do def handle(object, meta) do {:ok, object, meta} end + + def handle_undoing(%{data: %{"type" => "Like"}} = object) do + with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]), + {:ok, _} <- Utils.remove_like_from_object(object, liked_object), + {:ok, _} <- Repo.delete(object) do + :ok + end + end + + def handle_undoing(%{data: %{"type" => "EmojiReact"}} = object) do + with %Object{} = reacted_object <- Object.get_by_ap_id(object.data["object"]), + {:ok, _} <- Utils.remove_emoji_reaction_from_object(object, reacted_object), + {:ok, _} <- Repo.delete(object) do + :ok + end + end + + def handle_undoing(%{data: %{"type" => "Announce"}} = object) do + with %Object{} = liked_object <- Object.get_by_ap_id(object.data["object"]), + {:ok, _} <- Utils.remove_announce_from_object(object, liked_object), + {:ok, _} <- Repo.delete(object) do + :ok + end + end + + def handle_undoing( + %{data: %{"type" => "Block", "actor" => blocker, "object" => blocked}} = object + ) do + with %User{} = blocker <- User.get_cached_by_ap_id(blocker), + %User{} = blocked <- User.get_cached_by_ap_id(blocked), + {:ok, _} <- User.unblock(blocker, blocked), + {:ok, _} <- Repo.delete(object) do + :ok + end + end + + def handle_undoing(object), do: {:error, ["don't know how to handle", object]} end diff --git a/lib/pleroma/web/activity_pub/transmogrifier.ex b/lib/pleroma/web/activity_pub/transmogrifier.ex index 581e7040b..8443c284c 100644 --- a/lib/pleroma/web/activity_pub/transmogrifier.ex +++ b/lib/pleroma/web/activity_pub/transmogrifier.ex @@ -14,7 +14,9 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do alias Pleroma.Repo alias Pleroma.User alias Pleroma.Web.ActivityPub.ActivityPub + alias Pleroma.Web.ActivityPub.Builder alias Pleroma.Web.ActivityPub.ObjectValidator + alias Pleroma.Web.ActivityPub.ObjectValidators.Types alias Pleroma.Web.ActivityPub.Pipeline alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Visibility @@ -590,6 +592,9 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do {:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"), %User{local: true} = follower <- User.get_cached_by_ap_id(follow_activity.data["actor"]), {:ok, _relationship} <- FollowingRelationship.update(follower, followed, :follow_accept) do + User.update_follower_count(followed) + User.update_following_count(follower) + ActivityPub.accept(%{ to: follow_activity.data["to"], type: "Accept", @@ -599,7 +604,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do activity_id: id }) else - _e -> :error + _e -> + :error end end @@ -656,7 +662,8 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do |> handle_incoming(options) end - def handle_incoming(%{"type" => "Like"} = data, _options) do + def handle_incoming(%{"type" => type} = data, _options) + when type in ["Like", "EmojiReact", "Announce"] do with :ok <- ObjectValidator.fetch_actor_and_object(data), {:ok, activity, _meta} <- Pipeline.common_pipeline(data, local: false) do @@ -667,42 +674,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do end def handle_incoming( - %{ - "type" => "EmojiReact", - "object" => object_id, - "actor" => _actor, - "id" => id, - "content" => emoji - } = data, - _options - ) do - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, object} <- get_obj_helper(object_id), - {:ok, activity, _object} <- - ActivityPub.react_with_emoji(actor, object, emoji, activity_id: id, local: false) do - {:ok, activity} - else - _e -> :error - end - end - - def handle_incoming( - %{"type" => "Announce", "object" => object_id, "actor" => _actor, "id" => id} = data, - _options - ) do - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, object} <- get_embedded_obj_helper(object_id, actor), - public <- Visibility.is_public?(data), - {:ok, activity, _object} <- ActivityPub.announce(actor, object, id, false, public) do - {:ok, activity} - else - _e -> :error - end - end - - def handle_incoming( %{"type" => "Update", "object" => %{"type" => object_type} = object, "actor" => actor_id} = data, _options @@ -735,55 +706,25 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do end end - # TODO: We presently assume that any actor on the same origin domain as the object being - # deleted has the rights to delete that object. A better way to validate whether or not - # the object should be deleted is to refetch the object URI, which should return either - # an error or a tombstone. This would allow us to verify that a deletion actually took - # place. def handle_incoming( - %{"type" => "Delete", "object" => object_id, "actor" => actor, "id" => id} = data, + %{"type" => "Delete"} = data, _options ) do - object_id = Utils.get_ap_id(object_id) - - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, object} <- get_obj_helper(object_id), - :ok <- Containment.contain_origin(actor.ap_id, object.data), - {:ok, activity} <- - ActivityPub.delete(object, local: false, activity_id: id, actor: actor.ap_id) do + with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do {:ok, activity} else - nil -> - case User.get_cached_by_ap_id(object_id) do - %User{ap_id: ^actor} = user -> - User.delete(user) - - nil -> - :error + {:error, {:validate_object, _}} = e -> + # Check if we have a create activity for this + with {:ok, object_id} <- Types.ObjectID.cast(data["object"]), + %Activity{data: %{"actor" => actor}} <- + Activity.create_by_object_ap_id(object_id) |> Repo.one(), + # We have one, insert a tombstone and retry + {:ok, tombstone_data, _} <- Builder.tombstone(actor, object_id), + {:ok, _tombstone} <- Object.create(tombstone_data) do + handle_incoming(data) + else + _ -> e end - - _e -> - :error - end - end - - def handle_incoming( - %{ - "type" => "Undo", - "object" => %{"type" => "Announce", "object" => object_id}, - "actor" => _actor, - "id" => id - } = data, - _options - ) do - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, object} <- get_obj_helper(object_id), - {:ok, activity, _} <- ActivityPub.unannounce(actor, object, id, false) do - {:ok, activity} - else - _e -> :error end end @@ -809,39 +750,29 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do def handle_incoming( %{ "type" => "Undo", - "object" => %{"type" => "EmojiReact", "id" => reaction_activity_id}, - "actor" => _actor, - "id" => id + "object" => %{"type" => type} } = data, _options - ) do - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, activity, _} <- - ActivityPub.unreact_with_emoji(actor, reaction_activity_id, - activity_id: id, - local: false - ) do + ) + when type in ["Like", "EmojiReact", "Announce", "Block"] do + with {:ok, activity, _} <- Pipeline.common_pipeline(data, local: false) do {:ok, activity} - else - _e -> :error end end + # For Undos that don't have the complete object attached, try to find it in our database. def handle_incoming( %{ "type" => "Undo", - "object" => %{"type" => "Block", "object" => blocked}, - "actor" => blocker, - "id" => id - } = _data, - _options - ) do - with %User{local: true} = blocked <- User.get_cached_by_ap_id(blocked), - {:ok, %User{} = blocker} <- User.get_or_fetch_by_ap_id(blocker), - {:ok, activity} <- ActivityPub.unblock(blocker, blocked, id, false) do - User.unblock(blocker, blocked) - {:ok, activity} + "object" => object + } = activity, + options + ) + when is_binary(object) do + with %Activity{data: data} <- Activity.get_by_ap_id(object) do + activity + |> Map.put("object", data) + |> handle_incoming(options) else _e -> :error end @@ -864,43 +795,6 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do def handle_incoming( %{ - "type" => "Undo", - "object" => %{"type" => "Like", "object" => object_id}, - "actor" => _actor, - "id" => id - } = data, - _options - ) do - with actor <- Containment.get_actor(data), - {:ok, %User{} = actor} <- User.get_or_fetch_by_ap_id(actor), - {:ok, object} <- get_obj_helper(object_id), - {:ok, activity, _, _} <- ActivityPub.unlike(actor, object, id, false) do - {:ok, activity} - else - _e -> :error - end - end - - # For Undos that don't have the complete object attached, try to find it in our database. - def handle_incoming( - %{ - "type" => "Undo", - "object" => object - } = activity, - options - ) - when is_binary(object) do - with %Activity{data: data} <- Activity.get_by_ap_id(object) do - activity - |> Map.put("object", data) - |> handle_incoming(options) - else - _e -> :error - end - end - - def handle_incoming( - %{ "type" => "Move", "actor" => origin_actor, "object" => origin_actor, @@ -1151,10 +1045,14 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do Map.put(object, "tag", tags) end + # TODO These should be added on our side on insertion, it doesn't make much + # sense to regenerate these all the time def add_mention_tags(object) do - {enabled_receivers, disabled_receivers} = Utils.get_notified_from_object(object) - potential_receivers = enabled_receivers ++ disabled_receivers - mentions = Enum.map(potential_receivers, &build_mention_tag/1) + to = object["to"] || [] + cc = object["cc"] || [] + mentioned = User.get_users_from_set(to ++ cc, local_only: false) + + mentions = Enum.map(mentioned, &build_mention_tag/1) tags = object["tag"] || [] Map.put(object, "tag", tags ++ mentions) @@ -1195,6 +1093,10 @@ defmodule Pleroma.Web.ActivityPub.Transmogrifier do Map.put(object, "conversation", object["context"]) end + def set_sensitive(%{"sensitive" => true} = object) do + object + end + def set_sensitive(object) do tags = object["tag"] || [] Map.put(object, "sensitive", "nsfw" in tags) diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex index 2d685ecc0..f2375bcc4 100644 --- a/lib/pleroma/web/activity_pub/utils.ex +++ b/lib/pleroma/web/activity_pub/utils.ex @@ -6,6 +6,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do alias Ecto.Changeset alias Ecto.UUID alias Pleroma.Activity + alias Pleroma.Config alias Pleroma.Notification alias Pleroma.Object alias Pleroma.Repo @@ -169,8 +170,11 @@ defmodule Pleroma.Web.ActivityPub.Utils do Enqueues an activity for federation if it's local """ @spec maybe_federate(any()) :: :ok - def maybe_federate(%Activity{local: true} = activity) do - if Pleroma.Config.get!([:instance, :federating]) do + def maybe_federate(%Activity{local: true, data: %{"type" => type}} = activity) do + outgoing_blocks = Config.get([:activitypub, :outgoing_blocks]) + + with true <- Config.get!([:instance, :federating]), + true <- type != "Block" || outgoing_blocks do Pleroma.Web.Federator.publish(activity) end @@ -512,7 +516,7 @@ defmodule Pleroma.Web.ActivityPub.Utils do #### Announce-related helpers @doc """ - Retruns an existing announce activity if the notice has already been announced + Returns an existing announce activity if the notice has already been announced """ @spec get_existing_announce(String.t(), map()) :: Activity.t() | nil def get_existing_announce(actor, %{data: %{"id" => ap_id}}) do @@ -562,45 +566,6 @@ defmodule Pleroma.Web.ActivityPub.Utils do |> maybe_put("id", activity_id) end - @doc """ - Make unannounce activity data for the given actor and object - """ - def make_unannounce_data( - %User{ap_id: ap_id} = user, - %Activity{data: %{"context" => context, "object" => object}} = activity, - activity_id - ) do - object = Object.normalize(object) - - %{ - "type" => "Undo", - "actor" => ap_id, - "object" => activity.data, - "to" => [user.follower_address, object.data["actor"]], - "cc" => [Pleroma.Constants.as_public()], - "context" => context - } - |> maybe_put("id", activity_id) - end - - def make_unlike_data( - %User{ap_id: ap_id} = user, - %Activity{data: %{"context" => context, "object" => object}} = activity, - activity_id - ) do - object = Object.normalize(object) - - %{ - "type" => "Undo", - "actor" => ap_id, - "object" => activity.data, - "to" => [user.follower_address, object.data["actor"]], - "cc" => [Pleroma.Constants.as_public()], - "context" => context - } - |> maybe_put("id", activity_id) - end - def make_undo_data( %User{ap_id: actor, follower_address: follower_address}, %Activity{ @@ -688,16 +653,6 @@ defmodule Pleroma.Web.ActivityPub.Utils do |> maybe_put("id", activity_id) end - def make_unblock_data(blocker, blocked, block_activity, activity_id) do - %{ - "type" => "Undo", - "actor" => blocker.ap_id, - "to" => [blocked.ap_id], - "object" => block_activity.data - } - |> maybe_put("id", activity_id) - end - #### Create-related helpers def make_create_data(params, additional) do |