diff options
Diffstat (limited to 'lib/pleroma/web/activity_pub')
13 files changed, 487 insertions, 341 deletions
diff --git a/lib/pleroma/web/activity_pub/activity_pub.ex b/lib/pleroma/web/activity_pub/activity_pub.ex index 1f4a09370..5abeb94c6 100644 --- a/lib/pleroma/web/activity_pub/activity_pub.ex +++ b/lib/pleroma/web/activity_pub/activity_pub.ex @@ -170,12 +170,6 @@ 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 -> @@ -198,6 +192,15 @@ 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 create_or_bump_conversation(activity, actor) do with {:ok, conversation} <- Conversation.create_or_bump_for(activity), %User{} = user <- User.get_cached_by_ap_id(actor), @@ -274,6 +277,7 @@ 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 @@ -301,6 +305,7 @@ 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 @@ -325,6 +330,7 @@ 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 @@ -344,6 +350,7 @@ 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 @@ -365,6 +372,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do 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), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity, object} else @@ -373,54 +381,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do 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( @@ -442,6 +402,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do announce_data <- make_announce_data(user, object, activity_id, public), {:ok, activity} <- insert(announce_data, local), {:ok, object} <- add_announce_to_object(activity, object), + _ <- notify_and_stream(activity), :ok <- maybe_federate(activity) do {:ok, activity, object} else @@ -450,34 +411,6 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do 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 @@ -490,6 +423,7 @@ 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 @@ -511,6 +445,7 @@ 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 @@ -519,67 +454,6 @@ 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 @@ -601,6 +475,7 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do with true <- outgoing_blocks, 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 @@ -608,27 +483,6 @@ 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( %{ @@ -655,6 +509,7 @@ 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) @@ -678,7 +533,8 @@ 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", %{ @@ -1530,21 +1386,34 @@ defmodule Pleroma.Web.ActivityPub.ActivityPub do defp normalize_counter(counter) when is_integer(counter), do: counter defp normalize_counter(_), do: 0 - defp maybe_update_follow_information(data) do + def maybe_update_follow_information(user_data) do with {:enabled, true} <- {:enabled, Config.get([:instance, :external_user_synchronization])}, - {:ok, info} <- fetch_follow_information_for_user(data) do - info = Map.merge(data[:info] || %{}, info) - Map.put(data, :info, info) + {_, true} <- {:user_type_check, user_data[:type] in ["Person", "Service"]}, + {_, true} <- + {:collections_available, + !!(user_data[:following_address] && user_data[:follower_address])}, + {:ok, info} <- + fetch_follow_information_for_user(user_data) do + info = Map.merge(user_data[:info] || %{}, info) + + user_data + |> Map.put(:info, info) else + {:user_type_check, false} -> + user_data + + {:collections_available, false} -> + user_data + {:enabled, false} -> - data + user_data e -> Logger.error( - "Follower/Following counter update for #{data.ap_id} failed.\n" <> inspect(e) + "Follower/Following counter update for #{user_data.ap_id} failed.\n" <> inspect(e) ) - data + user_data end end diff --git a/lib/pleroma/web/activity_pub/activity_pub_controller.ex b/lib/pleroma/web/activity_pub/activity_pub_controller.ex index 504eed4f4..62ad15d85 100644 --- a/lib/pleroma/web/activity_pub/activity_pub_controller.ex +++ b/lib/pleroma/web/activity_pub/activity_pub_controller.ex @@ -34,7 +34,7 @@ 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) @@ -418,7 +418,8 @@ 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..b0f447e28 100644 --- a/lib/pleroma/web/activity_pub/builder.ex +++ b/lib/pleroma/web/activity_pub/builder.ex @@ -10,6 +10,46 @@ defmodule Pleroma.Web.ActivityPub.Builder do alias Pleroma.Web.ActivityPub.Utils alias Pleroma.Web.ActivityPub.Visibility + @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 like(User.t(), Object.t()) :: {:ok, map(), keyword()} def like(actor, object) do object_actor = User.get_cached_by_ap_id(object.data["actor"]) diff --git a/lib/pleroma/web/activity_pub/object_validator.ex b/lib/pleroma/web/activity_pub/object_validator.ex index dc4bce059..4782cd8f3 100644 --- a/lib/pleroma/web/activity_pub/object_validator.ex +++ b/lib/pleroma/web/activity_pub/object_validator.ex @@ -11,11 +11,34 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do alias Pleroma.Object alias Pleroma.User + alias Pleroma.Web.ActivityPub.ObjectValidators.DeleteValidator 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 @@ -24,13 +47,25 @@ defmodule Pleroma.Web.ActivityPub.ObjectValidator do 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"]) + fetch_actor(object) Object.normalize(object["object"]) :ok 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..e06de3dff --- /dev/null +++ b/lib/pleroma/web/activity_pub/object_validators/delete_validator.ex @@ -0,0 +1,99 @@ +# 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 + } + 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/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..657cdfdb1 100644 --- a/lib/pleroma/web/activity_pub/pipeline.ex +++ b/lib/pleroma/web/activity_pub/pipeline.ex @@ -44,7 +44,9 @@ 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] + + if !do_not_federate && local do Federator.publish(activity) {:ok, :federated} else diff --git a/lib/pleroma/web/activity_pub/side_effects.ex b/lib/pleroma/web/activity_pub/side_effects.ex index 6a8f1af96..5049cb54e 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 +27,95 @@ defmodule Pleroma.Web.ActivityPub.SideEffects do {: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: + # - 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..26b5bda0e 100644 --- a/lib/pleroma/web/activity_pub/transmogrifier.ex +++ b/lib/pleroma/web/activity_pub/transmogrifier.ex @@ -735,55 +735,12 @@ 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 - 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 +766,29 @@ 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 +811,6 @@ 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, @@ -1195,6 +1105,10 @@ 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..09b80fa57 100644 --- a/lib/pleroma/web/activity_pub/utils.ex +++ b/lib/pleroma/web/activity_pub/utils.ex @@ -512,7 +512,7 @@ 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 +562,6 @@ 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 +649,6 @@ 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 |