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	diff --git a/lib/pleroma/web/activity_pub/utils.ex b/lib/pleroma/web/activity_pub/utils.ex
	index 7807fa9cd..82e2d8f76 100644
	--- a/lib/pleroma/web/activity_pub/utils.ex
	+++ b/lib/pleroma/web/activity_pub/utils.ex
	@@ -1,818 +1,831 @@
	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.ActivityPub.Utils do
	alias Ecto.Changeset
	alias Ecto.UUID
	alias Pleroma.Activity
	alias Pleroma.Notification
	alias Pleroma.Object
	alias Pleroma.Repo
	alias Pleroma.User
	alias Pleroma.Web
	alias Pleroma.Web.ActivityPub.Visibility
	alias Pleroma.Web.Endpoint
	alias Pleroma.Web.Router.Helpers

	import Ecto.Query

	require Logger
	require Pleroma.Constants

	@supported_object_types ["Article", "Note", "Video", "Page", "Question", "Answer", "Audio"]
	@supported_report_states ~w(open closed resolved)
	@valid_visibilities ~w(public unlisted private direct)

	# Some implementations send the actor URI as the actor field, others send the entire actor object,
	# so figure out what the actor's URI is based on what we have.
	def get_ap_id(%{"id" => id} = _), do: id
	def get_ap_id(id), do: id

	def normalize_params(params) do
	Map.put(params, "actor", get_ap_id(params["actor"]))
	end

	@spec determine_explicit_mentions(map()) :: map()
	def determine_explicit_mentions(%{"tag" => tag} = _) when is_list(tag) do
	Enum.flat_map(tag, fn
	%{"type" => "Mention", "href" => href} -> [href]
	_ -> []
	end)
	end

	def determine_explicit_mentions(%{"tag" => tag} = object) when is_map(tag) do
	object
	\|> Map.put("tag", [tag])
	\|> determine_explicit_mentions()
	end

	def determine_explicit_mentions(_), do: []

	@spec recipient_in_collection(any(), any()) :: boolean()
	defp recipient_in_collection(ap_id, coll) when is_binary(coll), do: ap_id == coll
	defp recipient_in_collection(ap_id, coll) when is_list(coll), do: ap_id in coll
	defp recipient_in_collection(_, _), do: false

	@spec recipient_in_message(User.t(), User.t(), map()) :: boolean()
	def recipient_in_message(%User{ap_id: ap_id} = recipient, %User{} = actor, params) do
	addresses = [params["to"], params["cc"], params["bto"], params["bcc"]]

	cond do
	Enum.any?(addresses, &recipient_in_collection(ap_id, &1)) -> true
	# if the message is unaddressed at all, then assume it is directly addressed
	# to the recipient
	Enum.all?(addresses, &is_nil(&1)) -> true
	# if the message is sent from somebody the user is following, then assume it
	# is addressed to the recipient
	User.following?(recipient, actor) -> true
	true -> false
	end
	end

	defp extract_list(target) when is_binary(target), do: [target]
	defp extract_list(lst) when is_list(lst), do: lst
	defp extract_list(_), do: []

	def maybe_splice_recipient(ap_id, params) do
	need_splice? =
	!recipient_in_collection(ap_id, params["to"]) &&
	!recipient_in_collection(ap_id, params["cc"])

	if need_splice? do
	cc_list = extract_list(params["cc"])
	Map.put(params, "cc", [ap_id \| cc_list])
	else
	params
	end
	end

	def make_json_ld_header do
	%{
	"@context" => [
	"https://www.w3.org/ns/activitystreams",
	"#{Web.base_url()}/schemas/litepub-0.1.jsonld",
	%{
	"@language" => "und"
	}
	]
	}
	end

	def make_date do
	DateTime.utc_now() \|> DateTime.to_iso8601()
	end

	def generate_activity_id do
	generate_id("activities")
	end

	def generate_context_id do
	generate_id("contexts")
	end

	def generate_object_id do
	Helpers.o_status_url(Endpoint, :object, UUID.generate())
	end

	def generate_id(type) do
	"#{Web.base_url()}/#{type}/#{UUID.generate()}"
	end

	def get_notified_from_object(%{"type" => type} = object) when type in @supported_object_types do
	fake_create_activity = %{
	"to" => object["to"],
	"cc" => object["cc"],
	"type" => "Create",
	"object" => object
	}

	get_notified_from_object(fake_create_activity)
	end

	def get_notified_from_object(object) do
	Notification.get_notified_from_activity(%Activity{data: object}, false)
	end

	def create_context(context) do
	context = context \|\| generate_id("contexts")

	# Ecto has problems accessing the constraint inside the jsonb,
	# so we explicitly check for the existed object before insert
	object = Object.get_cached_by_ap_id(context)

	with true <- is_nil(object),
	changeset <- Object.context_mapping(context),
	{:ok, inserted_object} <- Repo.insert(changeset) do
	inserted_object
	else
	_ ->
	object
	end
	end

	@doc """
	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
	Pleroma.Web.Federator.publish(activity)
	end

	:ok
	end

	def maybe_federate(_), do: :ok

	@doc """
	Adds an id and a published data if they aren't there,
	also adds it to an included object
	"""
	@spec lazy_put_activity_defaults(map(), boolean) :: map()
	def lazy_put_activity_defaults(map, fake? \\ false)

	def lazy_put_activity_defaults(map, true) do
	map
	\|> Map.put_new("id", "pleroma:fakeid")
	\|> Map.put_new_lazy("published", &make_date/0)
	\|> Map.put_new("context", "pleroma:fakecontext")
	\|> Map.put_new("context_id", -1)
	\|> lazy_put_object_defaults(true)
	end

	def lazy_put_activity_defaults(map, _fake?) do
	%{data: %{"id" => context}, id: context_id} = create_context(map["context"])

	map
	\|> Map.put_new_lazy("id", &generate_activity_id/0)
	\|> Map.put_new_lazy("published", &make_date/0)
	\|> Map.put_new("context", context)
	\|> Map.put_new("context_id", context_id)
	\|> lazy_put_object_defaults(false)
	end

	# Adds an id and published date if they aren't there.
	#
	@spec lazy_put_object_defaults(map(), boolean()) :: map()
	defp lazy_put_object_defaults(%{"object" => map} = activity, true)
	when is_map(map) do
	object =
	map
	\|> Map.put_new("id", "pleroma:fake_object_id")
	\|> Map.put_new_lazy("published", &make_date/0)
	\|> Map.put_new("context", activity["context"])
	\|> Map.put_new("context_id", activity["context_id"])
	\|> Map.put_new("fake", true)

	%{activity \| "object" => object}
	end

	defp lazy_put_object_defaults(%{"object" => map} = activity, _)
	when is_map(map) do
	object =
	map
	\|> Map.put_new_lazy("id", &generate_object_id/0)
	\|> Map.put_new_lazy("published", &make_date/0)
	\|> Map.put_new("context", activity["context"])
	\|> Map.put_new("context_id", activity["context_id"])

	%{activity \| "object" => object}
	end

	defp lazy_put_object_defaults(activity, _), do: activity

	@doc """
	Inserts a full object if it is contained in an activity.
	"""
	def insert_full_object(%{"object" => %{"type" => type} = object_data} = map)
	when is_map(object_data) and type in @supported_object_types do
	with {:ok, object} <- Object.create(object_data) do
	map = Map.put(map, "object", object.data["id"])

	{:ok, map, object}
	end
	end

	def insert_full_object(map), do: {:ok, map, nil}

	#### Like-related helpers

	@doc """
	Returns an existing like if a user already liked an object
	"""
	@spec get_existing_like(String.t(), map()) :: Activity.t() \| nil
	def get_existing_like(actor, %{data: %{"id" => id}}) do
	actor
	\|> Activity.Queries.by_actor()
	\|> Activity.Queries.by_object_id(id)
	\|> Activity.Queries.by_type("Like")
	\|> limit(1)
	\|> Repo.one()
	end

	@doc """
	Returns like activities targeting an object
	"""
	def get_object_likes(%{data: %{"id" => id}}) do
	id
	\|> Activity.Queries.by_object_id()
	\|> Activity.Queries.by_type("Like")
	\|> Repo.all()
	end

	def make_emoji_reaction_data(user, object, emoji, activity_id) do
	make_like_data(user, object, activity_id)
	\|> Map.put("type", "EmojiReaction")
	\|> Map.put("content", emoji)
	end

	@spec make_like_data(User.t(), map(), String.t()) :: map()
	def make_like_data(
	%User{ap_id: ap_id} = actor,
	%{data: %{"actor" => object_actor_id, "id" => id}} = object,
	activity_id
	) do
	object_actor = User.get_cached_by_ap_id(object_actor_id)

	to =
	if Visibility.is_public?(object) do
	[actor.follower_address, object.data["actor"]]
	else
	[object.data["actor"]]
	end

	cc =
	(object.data["to"] ++ (object.data["cc"] \|\| []))
	\|> List.delete(actor.ap_id)
	\|> List.delete(object_actor.follower_address)

	%{
	"type" => "Like",
	"actor" => ap_id,
	"object" => id,
	"to" => to,
	"cc" => cc,
	"context" => object.data["context"]
	}
	\|> maybe_put("id", activity_id)
	end

	@spec update_element_in_object(String.t(), list(any), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}
	def update_element_in_object(property, element, object) do
	length =
	if is_map(element) do
	element
	\|> Map.values()
	\|> List.flatten()
	\|> length()
	else
	element
	\|> length()
	end

	data =
	Map.merge(
	object.data,
	%{"#{property}_count" => length, "#{property}s" => element}
	)

	object
	\|> Changeset.change(data: data)
	\|> Object.update_and_set_cache()
	end

	@spec add_emoji_reaction_to_object(Activity.t(), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}

	def add_emoji_reaction_to_object(
	%Activity{data: %{"content" => emoji, "actor" => actor}},
	object
	) do
	reactions = object.data["reactions"] \|\| %{}
	emoji_actors = reactions[emoji] \|\| []
	new_emoji_actors = [actor \| emoji_actors] \|> Enum.uniq()
	new_reactions = Map.put(reactions, emoji, new_emoji_actors)
	update_element_in_object("reaction", new_reactions, object)
	end

	def remove_emoji_reaction_from_object(
	%Activity{data: %{"content" => emoji, "actor" => actor}},
	object
	) do
	reactions = object.data["reactions"] \|\| %{}
	emoji_actors = reactions[emoji] \|\| []
	new_emoji_actors = List.delete(emoji_actors, actor)

	new_reactions =
	if new_emoji_actors == [] do
	Map.delete(reactions, emoji)
	else
	Map.put(reactions, emoji, new_emoji_actors)
	end

	update_element_in_object("reaction", new_reactions, object)
	end

	@spec add_like_to_object(Activity.t(), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}
	def add_like_to_object(%Activity{data: %{"actor" => actor}}, object) do
	[actor \| fetch_likes(object)]
	\|> Enum.uniq()
	\|> update_likes_in_object(object)
	end

	@spec remove_like_from_object(Activity.t(), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}
	def remove_like_from_object(%Activity{data: %{"actor" => actor}}, object) do
	object
	\|> fetch_likes()
	\|> List.delete(actor)
	\|> update_likes_in_object(object)
	end

	defp update_likes_in_object(likes, object) do
	update_element_in_object("like", likes, object)
	end

	defp fetch_likes(object) do
	if is_list(object.data["likes"]) do
	object.data["likes"]
	else
	[]
	end
	end

	#### Follow-related helpers

	@doc """
	Updates a follow activity's state (for locked accounts).
	"""
	@spec update_follow_state_for_all(Activity.t(), String.t()) :: {:ok, Activity} \| {:error, any()}
	def update_follow_state_for_all(
	%Activity{data: %{"actor" => actor, "object" => object}} = activity,
	state
	) do
	"Follow"
	\|> Activity.Queries.by_type()
	\|> Activity.Queries.by_actor(actor)
	\|> Activity.Queries.by_object_id(object)
	\|> where(fragment("data->>'state' = 'pending'"))
	\|> update(set: [data: fragment("jsonb_set(data, '{state}', ?)", ^state)])
	\|> Repo.update_all([])

	User.set_follow_state_cache(actor, object, state)

	activity = Activity.get_by_id(activity.id)

	{:ok, activity}
	end

	def update_follow_state(
	%Activity{data: %{"actor" => actor, "object" => object}} = activity,
	state
	) do
	new_data = Map.put(activity.data, "state", state)
	changeset = Changeset.change(activity, data: new_data)

	with {:ok, activity} <- Repo.update(changeset) do
	User.set_follow_state_cache(actor, object, state)
	{:ok, activity}
	end
	end

	@doc """
	Makes a follow activity data for the given follower and followed
	"""
	def make_follow_data(
	%User{ap_id: follower_id},
	%User{ap_id: followed_id} = _followed,
	activity_id
	) do
	%{
	"type" => "Follow",
	"actor" => follower_id,
	"to" => [followed_id],
	"cc" => [Pleroma.Constants.as_public()],
	"object" => followed_id,
	"state" => "pending"
	}
	\|> maybe_put("id", activity_id)
	end

	def fetch_latest_follow(%User{ap_id: follower_id}, %User{ap_id: followed_id}) do
	"Follow"
	\|> Activity.Queries.by_type()
	\|> where(actor: ^follower_id)
	# this is to use the index
	\|> Activity.Queries.by_object_id(followed_id)
	\|> order_by([activity], fragment("? desc nulls last", activity.id))
	\|> limit(1)
	\|> Repo.one()
	end

	+ def get_latest_reaction(internal_activity_id, %{ap_id: ap_id}, emoji) do
	+ %{data: %{"object" => object_ap_id}} = Activity.get_by_id(internal_activity_id)
	+
	+ "EmojiReaction"
	+ \|> Activity.Queries.by_type()
	+ \|> where(actor: ^ap_id)
	+ \|> where([activity], fragment("?->>'content' = ?", activity.data, ^emoji))
	+ \|> Activity.Queries.by_object_id(object_ap_id)
	+ \|> order_by([activity], fragment("? desc nulls last", activity.id))
	+ \|> limit(1)
	+ \|> Repo.one()
	+ end
	+
	#### Announce-related helpers

	@doc """
	Retruns 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
	"Announce"
	\|> Activity.Queries.by_type()
	\|> where(actor: ^actor)
	# this is to use the index
	\|> Activity.Queries.by_object_id(ap_id)
	\|> Repo.one()
	end

	@doc """
	Make announce activity data for the given actor and object
	"""
	# for relayed messages, we only want to send to subscribers
	def make_announce_data(
	%User{ap_id: ap_id} = user,
	%Object{data: %{"id" => id}} = object,
	activity_id,
	false
	) do
	%{
	"type" => "Announce",
	"actor" => ap_id,
	"object" => id,
	"to" => [user.follower_address],
	"cc" => [],
	"context" => object.data["context"]
	}
	\|> maybe_put("id", activity_id)
	end

	def make_announce_data(
	%User{ap_id: ap_id} = user,
	%Object{data: %{"id" => id}} = object,
	activity_id,
	true
	) do
	%{
	"type" => "Announce",
	"actor" => ap_id,
	"object" => id,
	"to" => [user.follower_address, object.data["actor"]],
	"cc" => [Pleroma.Constants.as_public()],
	"context" => object.data["context"]
	}
	\|> 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}} = activity,
	activity_id
	) do
	%{
	"type" => "Undo",
	"actor" => ap_id,
	"object" => activity.data,
	"to" => [user.follower_address, activity.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}} = activity,
	activity_id
	) do
	%{
	"type" => "Undo",
	"actor" => ap_id,
	"object" => activity.data,
	"to" => [user.follower_address, activity.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{
	data: %{"id" => undone_activity_id, "context" => context},
	actor: undone_activity_actor
	},
	activity_id \\ nil
	) do
	%{
	"type" => "Undo",
	"actor" => actor,
	"object" => undone_activity_id,
	"to" => [follower_address, undone_activity_actor],
	"cc" => [Pleroma.Constants.as_public()],
	"context" => context
	}
	\|> maybe_put("id", activity_id)
	end

	@spec add_announce_to_object(Activity.t(), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}
	def add_announce_to_object(
	%Activity{data: %{"actor" => actor}},
	object
	) do
	announcements = take_announcements(object)

	with announcements <- Enum.uniq([actor \| announcements]) do
	update_element_in_object("announcement", announcements, object)
	end
	end

	def add_announce_to_object(_, object), do: {:ok, object}

	@spec remove_announce_from_object(Activity.t(), Object.t()) ::
	{:ok, Object.t()} \| {:error, Ecto.Changeset.t()}
	def remove_announce_from_object(%Activity{data: %{"actor" => actor}}, object) do
	with announcements <- List.delete(take_announcements(object), actor) do
	update_element_in_object("announcement", announcements, object)
	end
	end

	defp take_announcements(%{data: %{"announcements" => announcements}} = _)
	when is_list(announcements),
	do: announcements

	defp take_announcements(_), do: []

	#### Unfollow-related helpers

	def make_unfollow_data(follower, followed, follow_activity, activity_id) do
	%{
	"type" => "Undo",
	"actor" => follower.ap_id,
	"to" => [followed.ap_id],
	"object" => follow_activity.data
	}
	\|> maybe_put("id", activity_id)
	end

	#### Block-related helpers
	@spec fetch_latest_block(User.t(), User.t()) :: Activity.t() \| nil
	def fetch_latest_block(%User{ap_id: blocker_id}, %User{ap_id: blocked_id}) do
	"Block"
	\|> Activity.Queries.by_type()
	\|> where(actor: ^blocker_id)
	# this is to use the index
	\|> Activity.Queries.by_object_id(blocked_id)
	\|> order_by([activity], fragment("? desc nulls last", activity.id))
	\|> limit(1)
	\|> Repo.one()
	end

	def make_block_data(blocker, blocked, activity_id) do
	%{
	"type" => "Block",
	"actor" => blocker.ap_id,
	"to" => [blocked.ap_id],
	"object" => blocked.ap_id
	}
	\|> 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
	published = params.published \|\| make_date()

	%{
	"type" => "Create",
	"to" => params.to \|> Enum.uniq(),
	"actor" => params.actor.ap_id,
	"object" => params.object,
	"published" => published,
	"context" => params.context
	}
	\|> Map.merge(additional)
	end

	#### Listen-related helpers
	def make_listen_data(params, additional) do
	published = params.published \|\| make_date()

	%{
	"type" => "Listen",
	"to" => params.to \|> Enum.uniq(),
	"actor" => params.actor.ap_id,
	"object" => params.object,
	"published" => published,
	"context" => params.context
	}
	\|> Map.merge(additional)
	end

	#### Flag-related helpers
	@spec make_flag_data(map(), map()) :: map()
	def make_flag_data(%{actor: actor, context: context, content: content} = params, additional) do
	%{
	"type" => "Flag",
	"actor" => actor.ap_id,
	"content" => content,
	"object" => build_flag_object(params),
	"context" => context,
	"state" => "open"
	}
	\|> Map.merge(additional)
	end

	def make_flag_data(_, _), do: %{}

	defp build_flag_object(%{account: account, statuses: statuses} = _) do
	[account.ap_id] ++
	Enum.map(statuses \|\| [], fn
	%Activity{} = act -> act.data["id"]
	act when is_map(act) -> act["id"]
	act when is_binary(act) -> act
	end)
	end

	defp build_flag_object(_), do: []

	@doc """
	Fetches the OrderedCollection/OrderedCollectionPage from `from`, limiting the amount of pages fetched after
	the first one to `pages_left` pages.
	If the amount of pages is higher than the collection has, it returns whatever was there.
	"""
	def fetch_ordered_collection(from, pages_left, acc \\ []) do
	with {:ok, response} <- Tesla.get(from),
	{:ok, collection} <- Jason.decode(response.body) do
	case collection["type"] do
	"OrderedCollection" ->
	# If we've encountered the OrderedCollection and not the page,
	# just call the same function on the page address
	fetch_ordered_collection(collection["first"], pages_left)

	"OrderedCollectionPage" ->
	if pages_left > 0 do
	# There are still more pages
	if Map.has_key?(collection, "next") do
	# There are still more pages, go deeper saving what we have into the accumulator
	fetch_ordered_collection(
	collection["next"],
	pages_left - 1,
	acc ++ collection["orderedItems"]
	)
	else
	# No more pages left, just return whatever we already have
	acc ++ collection["orderedItems"]
	end
	else
	# Got the amount of pages needed, add them all to the accumulator
	acc ++ collection["orderedItems"]
	end

	_ ->
	{:error, "Not an OrderedCollection or OrderedCollectionPage"}
	end
	end
	end

	#### Report-related helpers

	def update_report_state(%Activity{} = activity, state) when state in @supported_report_states do
	new_data = Map.put(activity.data, "state", state)

	activity
	\|> Changeset.change(data: new_data)
	\|> Repo.update()
	end

	def update_report_state(_, _), do: {:error, "Unsupported state"}

	def update_activity_visibility(activity, visibility) when visibility in @valid_visibilities do
	[to, cc, recipients] =
	activity
	\|> get_updated_targets(visibility)
	\|> Enum.map(&Enum.uniq/1)

	object_data =
	activity.object.data
	\|> Map.put("to", to)
	\|> Map.put("cc", cc)

	{:ok, object} =
	activity.object
	\|> Object.change(%{data: object_data})
	\|> Object.update_and_set_cache()

	activity_data =
	activity.data
	\|> Map.put("to", to)
	\|> Map.put("cc", cc)

	activity
	\|> Map.put(:object, object)
	\|> Activity.change(%{data: activity_data, recipients: recipients})
	\|> Repo.update()
	end

	def update_activity_visibility(_, _), do: {:error, "Unsupported visibility"}

	defp get_updated_targets(
	%Activity{data: %{"to" => to} = data, recipients: recipients},
	visibility
	) do
	cc = Map.get(data, "cc", [])
	follower_address = User.get_cached_by_ap_id(data["actor"]).follower_address
	public = Pleroma.Constants.as_public()

	case visibility do
	"public" ->
	to = [public \| List.delete(to, follower_address)]
	cc = [follower_address \| List.delete(cc, public)]
	recipients = [public \| recipients]
	[to, cc, recipients]

	"private" ->
	to = [follower_address \| List.delete(to, public)]
	cc = List.delete(cc, public)
	recipients = List.delete(recipients, public)
	[to, cc, recipients]

	"unlisted" ->
	to = [follower_address \| List.delete(to, public)]
	cc = [public \| List.delete(cc, follower_address)]
	recipients = recipients ++ [follower_address, public]
	[to, cc, recipients]

	_ ->
	[to, cc, recipients]
	end
	end

	def get_existing_votes(actor, %{data: %{"id" => id}}) do
	actor
	\|> Activity.Queries.by_actor()
	\|> Activity.Queries.by_type("Create")
	\|> Activity.with_preloaded_object()
	\|> where([a, object: o], fragment("(?)->>'inReplyTo' = ?", o.data, ^to_string(id)))
	\|> where([a, object: o], fragment("(?)->>'type' = 'Answer'", o.data))
	\|> Repo.all()
	end

	defp maybe_put(map, _key, nil), do: map
	defp maybe_put(map, key, value), do: Map.put(map, key, value)
	end
	diff --git a/lib/pleroma/web/common_api/common_api.ex b/lib/pleroma/web/common_api/common_api.ex
	index 53ada8fab..995d4b1af 100644
	--- a/lib/pleroma/web/common_api/common_api.ex
	+++ b/lib/pleroma/web/common_api/common_api.ex
	@@ -1,413 +1,422 @@
	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.CommonAPI do
	alias Pleroma.Activity
	alias Pleroma.ActivityExpiration
	alias Pleroma.Conversation.Participation
	alias Pleroma.Object
	alias Pleroma.ThreadMute
	alias Pleroma.User
	alias Pleroma.Web.ActivityPub.ActivityPub
	alias Pleroma.Web.ActivityPub.Utils
	alias Pleroma.Web.ActivityPub.Visibility

	import Pleroma.Web.Gettext
	import Pleroma.Web.CommonAPI.Utils

	def follow(follower, followed) do
	timeout = Pleroma.Config.get([:activitypub, :follow_handshake_timeout])

	with {:ok, follower} <- User.maybe_direct_follow(follower, followed),
	{:ok, activity} <- ActivityPub.follow(follower, followed),
	{:ok, follower, followed} <- User.wait_and_refresh(timeout, follower, followed) do
	{:ok, follower, followed, activity}
	end
	end

	def unfollow(follower, unfollowed) do
	with {:ok, follower, _follow_activity} <- User.unfollow(follower, unfollowed),
	{:ok, _activity} <- ActivityPub.unfollow(follower, unfollowed),
	{:ok, _unfollowed} <- User.unsubscribe(follower, unfollowed) do
	{:ok, follower}
	end
	end

	def accept_follow_request(follower, followed) do
	with {:ok, follower} <- User.follow(follower, followed),
	%Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
	{:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "accept"),
	{:ok, _activity} <-
	ActivityPub.accept(%{
	to: [follower.ap_id],
	actor: followed,
	object: follow_activity.data["id"],
	type: "Accept"
	}) do
	{:ok, follower}
	end
	end

	def reject_follow_request(follower, followed) do
	with %Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
	{:ok, follow_activity} <- Utils.update_follow_state_for_all(follow_activity, "reject"),
	{:ok, _activity} <-
	ActivityPub.reject(%{
	to: [follower.ap_id],
	actor: followed,
	object: follow_activity.data["id"],
	type: "Reject"
	}) do
	{:ok, follower}
	end
	end

	def delete(activity_id, user) do
	with %Activity{data: %{"object" => _}} = activity <-
	Activity.get_by_id_with_object(activity_id),
	%Object{} = object <- Object.normalize(activity),
	true <- User.superuser?(user) \|\| user.ap_id == object.data["actor"],
	{:ok, _} <- unpin(activity_id, user),
	{:ok, delete} <- ActivityPub.delete(object) do
	{:ok, delete}
	else
	_ -> {:error, dgettext("errors", "Could not delete")}
	end
	end

	def repeat(id_or_ap_id, user, params \\ %{}) do
	with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
	object <- Object.normalize(activity),
	nil <- Utils.get_existing_announce(user.ap_id, object),
	public <- public_announce?(object, params) do
	ActivityPub.announce(user, object, nil, true, public)
	else
	_ -> {:error, dgettext("errors", "Could not repeat")}
	end
	end

	def unrepeat(id_or_ap_id, user) do
	with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id) do
	object = Object.normalize(activity)
	ActivityPub.unannounce(user, object)
	else
	_ -> {:error, dgettext("errors", "Could not unrepeat")}
	end
	end

	def favorite(id_or_ap_id, user) do
	with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
	object <- Object.normalize(activity),
	nil <- Utils.get_existing_like(user.ap_id, object) do
	ActivityPub.like(user, object)
	else
	_ -> {:error, dgettext("errors", "Could not favorite")}
	end
	end

	def unfavorite(id_or_ap_id, user) do
	with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id) do
	object = Object.normalize(activity)
	ActivityPub.unlike(user, object)
	else
	_ -> {:error, dgettext("errors", "Could not unfavorite")}
	end
	end

	def react_with_emoji(id, user, emoji) do
	with %Activity{} = activity <- Activity.get_by_id(id),
	object <- Object.normalize(activity) do
	ActivityPub.react_with_emoji(user, object, emoji)
	else
	_ ->
	{:error, dgettext("errors", "Could not add reaction emoji")}
	end
	end

	+ def unreact_with_emoji(id, user, emoji) do
	+ with %Activity{} = reaction_activity <- Utils.get_latest_reaction(id, user, emoji) do
	+ ActivityPub.unreact_with_emoji(user, reaction_activity.data["id"])
	+ else
	+ _ ->
	+ {:error, dgettext("errors", "Could not remove reaction emoji")}
	+ end
	+ end
	+
	def vote(user, %{data: %{"type" => "Question"}} = object, choices) do
	with :ok <- validate_not_author(object, user),
	:ok <- validate_existing_votes(user, object),
	{:ok, options, choices} <- normalize_and_validate_choices(choices, object) do
	answer_activities =
	Enum.map(choices, fn index ->
	answer_data = make_answer_data(user, object, Enum.at(options, index)["name"])

	{:ok, activity} =
	ActivityPub.create(%{
	to: answer_data["to"],
	actor: user,
	context: object.data["context"],
	object: answer_data,
	additional: %{"cc" => answer_data["cc"]}
	})

	activity
	end)

	object = Object.get_cached_by_ap_id(object.data["id"])
	{:ok, answer_activities, object}
	end
	end

	defp validate_not_author(%{data: %{"actor" => ap_id}}, %{ap_id: ap_id}),
	do: {:error, dgettext("errors", "Poll's author can't vote")}

	defp validate_not_author(_, _), do: :ok

	defp validate_existing_votes(%{ap_id: ap_id}, object) do
	if Utils.get_existing_votes(ap_id, object) == [] do
	:ok
	else
	{:error, dgettext("errors", "Already voted")}
	end
	end

	defp get_options_and_max_count(%{data: %{"anyOf" => any_of}}), do: {any_of, Enum.count(any_of)}
	defp get_options_and_max_count(%{data: %{"oneOf" => one_of}}), do: {one_of, 1}

	defp normalize_and_validate_choices(choices, object) do
	choices = Enum.map(choices, fn i -> if is_binary(i), do: String.to_integer(i), else: i end)
	{options, max_count} = get_options_and_max_count(object)
	count = Enum.count(options)

	with {_, true} <- {:valid_choice, Enum.all?(choices, &(&1 < count))},
	{_, true} <- {:count_check, Enum.count(choices) <= max_count} do
	{:ok, options, choices}
	else
	{:valid_choice, _} -> {:error, dgettext("errors", "Invalid indices")}
	{:count_check, _} -> {:error, dgettext("errors", "Too many choices")}
	end
	end

	def public_announce?(_, %{"visibility" => visibility})
	when visibility in ~w{public unlisted private direct},
	do: visibility in ~w(public unlisted)

	def public_announce?(object, _) do
	Visibility.is_public?(object)
	end

	def get_visibility(_, _, %Participation{}), do: {"direct", "direct"}

	def get_visibility(%{"visibility" => visibility}, in_reply_to, _)
	when visibility in ~w{public unlisted private direct},
	do: {visibility, get_replied_to_visibility(in_reply_to)}

	def get_visibility(%{"visibility" => "list:" <> list_id}, in_reply_to, _) do
	visibility = {:list, String.to_integer(list_id)}
	{visibility, get_replied_to_visibility(in_reply_to)}
	end

	def get_visibility(_, in_reply_to, _) when not is_nil(in_reply_to) do
	visibility = get_replied_to_visibility(in_reply_to)
	{visibility, visibility}
	end

	def get_visibility(_, in_reply_to, _), do: {"public", get_replied_to_visibility(in_reply_to)}

	def get_replied_to_visibility(nil), do: nil

	def get_replied_to_visibility(activity) do
	with %Object{} = object <- Object.normalize(activity) do
	Visibility.get_visibility(object)
	end
	end

	def check_expiry_date({:ok, nil} = res), do: res

	def check_expiry_date({:ok, in_seconds}) do
	expiry = NaiveDateTime.utc_now() \|> NaiveDateTime.add(in_seconds)

	if ActivityExpiration.expires_late_enough?(expiry) do
	{:ok, expiry}
	else
	{:error, "Expiry date is too soon"}
	end
	end

	def check_expiry_date(expiry_str) do
	Ecto.Type.cast(:integer, expiry_str)
	\|> check_expiry_date()
	end

	def listen(user, %{"title" => _} = data) do
	with visibility <- data["visibility"] \|\| "public",
	{to, cc} <- get_to_and_cc(user, [], nil, visibility, nil),
	listen_data <-
	Map.take(data, ["album", "artist", "title", "length"])
	\|> Map.put("type", "Audio")
	\|> Map.put("to", to)
	\|> Map.put("cc", cc)
	\|> Map.put("actor", user.ap_id),
	{:ok, activity} <-
	ActivityPub.listen(%{
	actor: user,
	to: to,
	object: listen_data,
	context: Utils.generate_context_id(),
	additional: %{"cc" => cc}
	}) do
	{:ok, activity}
	end
	end

	def post(user, %{"status" => _} = data) do
	with {:ok, draft} <- Pleroma.Web.CommonAPI.ActivityDraft.create(user, data) do
	draft.changes
	\|> ActivityPub.create(draft.preview?)
	\|> maybe_create_activity_expiration(draft.expires_at)
	end
	end

	defp maybe_create_activity_expiration({:ok, activity}, %NaiveDateTime{} = expires_at) do
	with {:ok, _} <- ActivityExpiration.create(activity, expires_at) do
	{:ok, activity}
	end
	end

	defp maybe_create_activity_expiration(result, _), do: result

	# Updates the emojis for a user based on their profile
	def update(user) do
	emoji = emoji_from_profile(user)
	source_data = user.info \|> Map.get(:source_data, %{}) \|> Map.put("tag", emoji)

	user =
	case User.update_info(user, &User.Info.set_source_data(&1, source_data)) do
	{:ok, user} -> user
	_ -> user
	end

	ActivityPub.update(%{
	local: true,
	to: [user.follower_address],
	cc: [],
	actor: user.ap_id,
	object: Pleroma.Web.ActivityPub.UserView.render("user.json", %{user: user})
	})
	end

	def pin(id_or_ap_id, %{ap_id: user_ap_id} = user) do
	with %Activity{
	actor: ^user_ap_id,
	data: %{"type" => "Create"},
	object: %Object{data: %{"type" => "Note"}}
	} = activity <- get_by_id_or_ap_id(id_or_ap_id),
	true <- Visibility.is_public?(activity),
	{:ok, _user} <- User.update_info(user, &User.Info.add_pinnned_activity(&1, activity)) do
	{:ok, activity}
	else
	{:error, %{changes: %{info: %{errors: [pinned_activities: {err, _}]}}}} -> {:error, err}
	_ -> {:error, dgettext("errors", "Could not pin")}
	end
	end

	def unpin(id_or_ap_id, user) do
	with %Activity{} = activity <- get_by_id_or_ap_id(id_or_ap_id),
	{:ok, _user} <- User.update_info(user, &User.Info.remove_pinnned_activity(&1, activity)) do
	{:ok, activity}
	else
	%{errors: [pinned_activities: {err, _}]} -> {:error, err}
	_ -> {:error, dgettext("errors", "Could not unpin")}
	end
	end

	def add_mute(user, activity) do
	with {:ok, _} <- ThreadMute.add_mute(user.id, activity.data["context"]) do
	{:ok, activity}
	else
	{:error, _} -> {:error, dgettext("errors", "conversation is already muted")}
	end
	end

	def remove_mute(user, activity) do
	ThreadMute.remove_mute(user.id, activity.data["context"])
	{:ok, activity}
	end

	def thread_muted?(%{id: nil} = _user, _activity), do: false

	def thread_muted?(user, activity) do
	ThreadMute.check_muted(user.id, activity.data["context"]) != []
	end

	def report(user, %{"account_id" => account_id} = data) do
	with {:ok, account} <- get_reported_account(account_id),
	{:ok, {content_html, _, _}} <- make_report_content_html(data["comment"]),
	{:ok, statuses} <- get_report_statuses(account, data) do
	ActivityPub.flag(%{
	context: Utils.generate_context_id(),
	actor: user,
	account: account,
	statuses: statuses,
	content: content_html,
	forward: data["forward"] \|\| false
	})
	end
	end

	def report(_user, _params), do: {:error, dgettext("errors", "Valid `account_id` required")}

	defp get_reported_account(account_id) do
	case User.get_cached_by_id(account_id) do
	%User{} = account -> {:ok, account}
	_ -> {:error, dgettext("errors", "Account not found")}
	end
	end

	def update_report_state(activity_id, state) do
	with %Activity{} = activity <- Activity.get_by_id(activity_id) do
	Utils.update_report_state(activity, state)
	else
	nil -> {:error, :not_found}
	_ -> {:error, dgettext("errors", "Could not update state")}
	end
	end

	def update_activity_scope(activity_id, opts \\ %{}) do
	with %Activity{} = activity <- Activity.get_by_id_with_object(activity_id),
	{:ok, activity} <- toggle_sensitive(activity, opts) do
	set_visibility(activity, opts)
	else
	nil -> {:error, :not_found}
	{:error, reason} -> {:error, reason}
	end
	end

	defp toggle_sensitive(activity, %{"sensitive" => sensitive}) when sensitive in ~w(true false) do
	toggle_sensitive(activity, %{"sensitive" => String.to_existing_atom(sensitive)})
	end

	defp toggle_sensitive(%Activity{object: object} = activity, %{"sensitive" => sensitive})
	when is_boolean(sensitive) do
	new_data = Map.put(object.data, "sensitive", sensitive)

	{:ok, object} =
	object
	\|> Object.change(%{data: new_data})
	\|> Object.update_and_set_cache()

	{:ok, Map.put(activity, :object, object)}
	end

	defp toggle_sensitive(activity, _), do: {:ok, activity}

	defp set_visibility(activity, %{"visibility" => visibility}) do
	Utils.update_activity_visibility(activity, visibility)
	end

	defp set_visibility(activity, _), do: {:ok, activity}

	def hide_reblogs(user, %{ap_id: ap_id} = _muted) do
	if ap_id not in user.info.muted_reblogs do
	User.update_info(user, &User.Info.add_reblog_mute(&1, ap_id))
	end
	end

	def show_reblogs(user, %{ap_id: ap_id} = _muted) do
	if ap_id in user.info.muted_reblogs do
	User.update_info(user, &User.Info.remove_reblog_mute(&1, ap_id))
	end
	end
	end
	diff --git a/test/web/common_api/common_api_test.exs b/test/web/common_api/common_api_test.exs
	index e048ed217..b9e785885 100644
	--- a/test/web/common_api/common_api_test.exs
	+++ b/test/web/common_api/common_api_test.exs
	@@ -1,588 +1,591 @@
	# Pleroma: A lightweight social networking server
	# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
	# SPDX-License-Identifier: AGPL-3.0-only

	defmodule Pleroma.Web.CommonAPITest do
	use Pleroma.DataCase
	alias Pleroma.Activity
	alias Pleroma.Conversation.Participation
	alias Pleroma.Object
	alias Pleroma.User
	alias Pleroma.Web.ActivityPub.ActivityPub
	alias Pleroma.Web.ActivityPub.Visibility
	alias Pleroma.Web.CommonAPI

	import Pleroma.Factory

	clear_config([:instance, :safe_dm_mentions])
	clear_config([:instance, :limit])
	clear_config([:instance, :max_pinned_statuses])

	test "when replying to a conversation / participation, it will set the correct context id even if no explicit reply_to is given" do
	user = insert(:user)
	{:ok, activity} = CommonAPI.post(user, %{"status" => ".", "visibility" => "direct"})

	[participation] = Participation.for_user(user)

	{:ok, convo_reply} =
	CommonAPI.post(user, %{"status" => ".", "in_reply_to_conversation_id" => participation.id})

	assert Visibility.is_direct?(convo_reply)

	assert activity.data["context"] == convo_reply.data["context"]
	end

	test "when replying to a conversation / participation, it only mentions the recipients explicitly declared in the participation" do
	har = insert(:user)
	jafnhar = insert(:user)
	tridi = insert(:user)

	{:ok, activity} =
	CommonAPI.post(har, %{
	"status" => "@#{jafnhar.nickname} hey",
	"visibility" => "direct"
	})

	assert har.ap_id in activity.recipients
	assert jafnhar.ap_id in activity.recipients

	[participation] = Participation.for_user(har)

	{:ok, activity} =
	CommonAPI.post(har, %{
	"status" => "I don't really like @#{tridi.nickname}",
	"visibility" => "direct",
	"in_reply_to_status_id" => activity.id,
	"in_reply_to_conversation_id" => participation.id
	})

	assert har.ap_id in activity.recipients
	assert jafnhar.ap_id in activity.recipients
	refute tridi.ap_id in activity.recipients
	end

	test "with the safe_dm_mention option set, it does not mention people beyond the initial tags" do
	har = insert(:user)
	jafnhar = insert(:user)
	tridi = insert(:user)
	Pleroma.Config.put([:instance, :safe_dm_mentions], true)

	{:ok, activity} =
	CommonAPI.post(har, %{
	"status" => "@#{jafnhar.nickname} hey, i never want to see @#{tridi.nickname} again",
	"visibility" => "direct"
	})

	refute tridi.ap_id in activity.recipients
	assert jafnhar.ap_id in activity.recipients
	end

	test "it de-duplicates tags" do
	user = insert(:user)
	{:ok, activity} = CommonAPI.post(user, %{"status" => "#2hu #2HU"})

	object = Object.normalize(activity)

	assert object.data["tag"] == ["2hu"]
	end

	test "it adds emoji in the object" do
	user = insert(:user)
	{:ok, activity} = CommonAPI.post(user, %{"status" => ":firefox:"})

	assert Object.normalize(activity).data["emoji"]["firefox"]
	end

	test "it adds emoji when updating profiles" do
	user = insert(:user, %{name: ":firefox:"})

	CommonAPI.update(user)
	user = User.get_cached_by_ap_id(user.ap_id)
	[firefox] = user.info.source_data["tag"]

	assert firefox["name"] == ":firefox:"
	end

	describe "posting" do
	test "it supports explicit addressing" do
	user = insert(:user)
	user_two = insert(:user)
	user_three = insert(:user)
	user_four = insert(:user)

	{:ok, activity} =
	CommonAPI.post(user, %{
	"status" =>
	"Hey, I think @#{user_three.nickname} is ugly. @#{user_four.nickname} is alright though.",
	"to" => [user_two.nickname, user_four.nickname, "nonexistent"]
	})

	assert user.ap_id in activity.recipients
	assert user_two.ap_id in activity.recipients
	assert user_four.ap_id in activity.recipients
	refute user_three.ap_id in activity.recipients
	end

	test "it filters out obviously bad tags when accepting a post as HTML" do
	user = insert(:user)

	post = "<p><b>2hu</b></p><script>alert('xss')</script>"

	{:ok, activity} =
	CommonAPI.post(user, %{
	"status" => post,
	"content_type" => "text/html"
	})

	object = Object.normalize(activity)

	assert object.data["content"] == "<p><b>2hu</b></p>alert('xss')"
	end

	test "it filters out obviously bad tags when accepting a post as Markdown" do
	user = insert(:user)

	post = "<p><b>2hu</b></p><script>alert('xss')</script>"

	{:ok, activity} =
	CommonAPI.post(user, %{
	"status" => post,
	"content_type" => "text/markdown"
	})

	object = Object.normalize(activity)

	assert object.data["content"] == "<p><b>2hu</b></p>alert('xss')"
	end

	test "it does not allow replies to direct messages that are not direct messages themselves" do
	user = insert(:user)

	{:ok, activity} = CommonAPI.post(user, %{"status" => "suya..", "visibility" => "direct"})

	assert {:ok, _} =
	CommonAPI.post(user, %{
	"status" => "suya..",
	"visibility" => "direct",
	"in_reply_to_status_id" => activity.id
	})

	Enum.each(["public", "private", "unlisted"], fn visibility ->
	assert {:error, "The message visibility must be direct"} =
	CommonAPI.post(user, %{
	"status" => "suya..",
	"visibility" => visibility,
	"in_reply_to_status_id" => activity.id
	})
	end)
	end

	test "it allows to address a list" do
	user = insert(:user)
	{:ok, list} = Pleroma.List.create("foo", user)

	{:ok, activity} =
	CommonAPI.post(user, %{"status" => "foobar", "visibility" => "list:#{list.id}"})

	assert activity.data["bcc"] == [list.ap_id]
	assert activity.recipients == [list.ap_id, user.ap_id]
	assert activity.data["listMessage"] == list.ap_id
	end

	test "it returns error when status is empty and no attachments" do
	user = insert(:user)

	assert {:error, "Cannot post an empty status without attachments"} =
	CommonAPI.post(user, %{"status" => ""})
	end

	test "it returns error when character limit is exceeded" do
	Pleroma.Config.put([:instance, :limit], 5)

	user = insert(:user)

	assert {:error, "The status is over the character limit"} =
	CommonAPI.post(user, %{"status" => "foobar"})
	end

	test "it can handle activities that expire" do
	user = insert(:user)

	expires_at =
	NaiveDateTime.utc_now()
	\|> NaiveDateTime.truncate(:second)
	\|> NaiveDateTime.add(1_000_000, :second)

	assert {:ok, activity} =
	CommonAPI.post(user, %{"status" => "chai", "expires_in" => 1_000_000})

	assert expiration = Pleroma.ActivityExpiration.get_by_activity_id(activity.id)
	assert expiration.scheduled_at == expires_at
	end
	end

	describe "reactions" do
	test "reacting to a status with an emoji" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})

	{:ok, reaction, _} = CommonAPI.react_with_emoji(activity.id, user, "👍")

	assert reaction.data["actor"] == user.ap_id
	assert reaction.data["content"] == "👍"

	# TODO: test error case.
	end

	test "unreacting to a status with an emoji" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
	{:ok, reaction, _} = CommonAPI.react_with_emoji(activity.id, user, "👍")

	- assert false
	+ {:ok, unreaction, _} = CommonAPI.unreact_with_emoji(activity.id, user, "👍")
	+
	+ assert unreaction.data["type"] == "Undo"
	+ assert unreaction.data["object"] == reaction.data["id"]
	end

	test "repeating a status" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})

	{:ok, %Activity{}, _} = CommonAPI.repeat(activity.id, user)
	end

	test "repeating a status privately" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})

	{:ok, %Activity{} = announce_activity, _} =
	CommonAPI.repeat(activity.id, user, %{"visibility" => "private"})

	assert Visibility.is_private?(announce_activity)
	end

	test "favoriting a status" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})

	{:ok, %Activity{}, _} = CommonAPI.favorite(activity.id, user)
	end

	test "retweeting a status twice returns an error" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
	{:ok, %Activity{}, _object} = CommonAPI.repeat(activity.id, user)
	{:error, _} = CommonAPI.repeat(activity.id, user)
	end

	test "favoriting a status twice returns an error" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} = CommonAPI.post(other_user, %{"status" => "cofe"})
	{:ok, %Activity{}, _object} = CommonAPI.favorite(activity.id, user)
	{:error, _} = CommonAPI.favorite(activity.id, user)
	end
	end

	describe "pinned statuses" do
	setup do
	Pleroma.Config.put([:instance, :max_pinned_statuses], 1)

	user = insert(:user)
	{:ok, activity} = CommonAPI.post(user, %{"status" => "HI!!!"})

	[user: user, activity: activity]
	end

	test "pin status", %{user: user, activity: activity} do
	assert {:ok, ^activity} = CommonAPI.pin(activity.id, user)

	id = activity.id
	user = refresh_record(user)

	assert %User{info: %{pinned_activities: [^id]}} = user
	end

	test "unlisted statuses can be pinned", %{user: user} do
	{:ok, activity} = CommonAPI.post(user, %{"status" => "HI!!!", "visibility" => "unlisted"})
	assert {:ok, ^activity} = CommonAPI.pin(activity.id, user)
	end

	test "only self-authored can be pinned", %{activity: activity} do
	user = insert(:user)

	assert {:error, "Could not pin"} = CommonAPI.pin(activity.id, user)
	end

	test "max pinned statuses", %{user: user, activity: activity_one} do
	{:ok, activity_two} = CommonAPI.post(user, %{"status" => "HI!!!"})

	assert {:ok, ^activity_one} = CommonAPI.pin(activity_one.id, user)

	user = refresh_record(user)

	assert {:error, "You have already pinned the maximum number of statuses"} =
	CommonAPI.pin(activity_two.id, user)
	end

	test "unpin status", %{user: user, activity: activity} do
	{:ok, activity} = CommonAPI.pin(activity.id, user)

	user = refresh_record(user)

	assert {:ok, ^activity} = CommonAPI.unpin(activity.id, user)

	user = refresh_record(user)

	assert %User{info: %{pinned_activities: []}} = user
	end

	test "should unpin when deleting a status", %{user: user, activity: activity} do
	{:ok, activity} = CommonAPI.pin(activity.id, user)

	user = refresh_record(user)

	assert {:ok, _} = CommonAPI.delete(activity.id, user)

	user = refresh_record(user)

	assert %User{info: %{pinned_activities: []}} = user
	end
	end

	describe "mute tests" do
	setup do
	user = insert(:user)

	activity = insert(:note_activity)

	[user: user, activity: activity]
	end

	test "add mute", %{user: user, activity: activity} do
	{:ok, _} = CommonAPI.add_mute(user, activity)
	assert CommonAPI.thread_muted?(user, activity)
	end

	test "remove mute", %{user: user, activity: activity} do
	CommonAPI.add_mute(user, activity)
	{:ok, _} = CommonAPI.remove_mute(user, activity)
	refute CommonAPI.thread_muted?(user, activity)
	end

	test "check that mutes can't be duplicate", %{user: user, activity: activity} do
	CommonAPI.add_mute(user, activity)
	{:error, _} = CommonAPI.add_mute(user, activity)
	end
	end

	describe "reports" do
	test "creates a report" do
	reporter = insert(:user)
	target_user = insert(:user)

	{:ok, activity} = CommonAPI.post(target_user, %{"status" => "foobar"})

	reporter_ap_id = reporter.ap_id
	target_ap_id = target_user.ap_id
	activity_ap_id = activity.data["id"]
	comment = "foobar"

	report_data = %{
	"account_id" => target_user.id,
	"comment" => comment,
	"status_ids" => [activity.id]
	}

	assert {:ok, flag_activity} = CommonAPI.report(reporter, report_data)

	assert %Activity{
	actor: ^reporter_ap_id,
	data: %{
	"type" => "Flag",
	"content" => ^comment,
	"object" => [^target_ap_id, ^activity_ap_id],
	"state" => "open"
	}
	} = flag_activity
	end

	test "updates report state" do
	[reporter, target_user] = insert_pair(:user)
	activity = insert(:note_activity, user: target_user)

	{:ok, %Activity{id: report_id}} =
	CommonAPI.report(reporter, %{
	"account_id" => target_user.id,
	"comment" => "I feel offended",
	"status_ids" => [activity.id]
	})

	{:ok, report} = CommonAPI.update_report_state(report_id, "resolved")

	assert report.data["state"] == "resolved"
	end

	test "does not update report state when state is unsupported" do
	[reporter, target_user] = insert_pair(:user)
	activity = insert(:note_activity, user: target_user)

	{:ok, %Activity{id: report_id}} =
	CommonAPI.report(reporter, %{
	"account_id" => target_user.id,
	"comment" => "I feel offended",
	"status_ids" => [activity.id]
	})

	assert CommonAPI.update_report_state(report_id, "test") == {:error, "Unsupported state"}
	end
	end

	describe "reblog muting" do
	setup do
	muter = insert(:user)

	muted = insert(:user)

	[muter: muter, muted: muted]
	end

	test "add a reblog mute", %{muter: muter, muted: muted} do
	{:ok, muter} = CommonAPI.hide_reblogs(muter, muted)

	assert User.showing_reblogs?(muter, muted) == false
	end

	test "remove a reblog mute", %{muter: muter, muted: muted} do
	{:ok, muter} = CommonAPI.hide_reblogs(muter, muted)
	{:ok, muter} = CommonAPI.show_reblogs(muter, muted)

	assert User.showing_reblogs?(muter, muted) == true
	end
	end

	describe "unfollow/2" do
	test "also unsubscribes a user" do
	[follower, followed] = insert_pair(:user)
	{:ok, follower, followed, _} = CommonAPI.follow(follower, followed)
	{:ok, followed} = User.subscribe(follower, followed)

	assert User.subscribed_to?(follower, followed)

	{:ok, follower} = CommonAPI.unfollow(follower, followed)

	refute User.subscribed_to?(follower, followed)
	end
	end

	describe "accept_follow_request/2" do
	test "after acceptance, it sets all existing pending follow request states to 'accept'" do
	user = insert(:user, info: %{locked: true})
	follower = insert(:user)
	follower_two = insert(:user)

	{:ok, follow_activity} = ActivityPub.follow(follower, user)
	{:ok, follow_activity_two} = ActivityPub.follow(follower, user)
	{:ok, follow_activity_three} = ActivityPub.follow(follower_two, user)

	assert follow_activity.data["state"] == "pending"
	assert follow_activity_two.data["state"] == "pending"
	assert follow_activity_three.data["state"] == "pending"

	{:ok, _follower} = CommonAPI.accept_follow_request(follower, user)

	assert Repo.get(Activity, follow_activity.id).data["state"] == "accept"
	assert Repo.get(Activity, follow_activity_two.id).data["state"] == "accept"
	assert Repo.get(Activity, follow_activity_three.id).data["state"] == "pending"
	end

	test "after rejection, it sets all existing pending follow request states to 'reject'" do
	user = insert(:user, info: %{locked: true})
	follower = insert(:user)
	follower_two = insert(:user)

	{:ok, follow_activity} = ActivityPub.follow(follower, user)
	{:ok, follow_activity_two} = ActivityPub.follow(follower, user)
	{:ok, follow_activity_three} = ActivityPub.follow(follower_two, user)

	assert follow_activity.data["state"] == "pending"
	assert follow_activity_two.data["state"] == "pending"
	assert follow_activity_three.data["state"] == "pending"

	{:ok, _follower} = CommonAPI.reject_follow_request(follower, user)

	assert Repo.get(Activity, follow_activity.id).data["state"] == "reject"
	assert Repo.get(Activity, follow_activity_two.id).data["state"] == "reject"
	assert Repo.get(Activity, follow_activity_three.id).data["state"] == "pending"
	end
	end

	describe "vote/3" do
	test "does not allow to vote twice" do
	user = insert(:user)
	other_user = insert(:user)

	{:ok, activity} =
	CommonAPI.post(user, %{
	"status" => "Am I cute?",
	"poll" => %{"options" => ["Yes", "No"], "expires_in" => 20}
	})

	object = Object.normalize(activity)

	{:ok, _, object} = CommonAPI.vote(other_user, object, [0])

	assert {:error, "Already voted"} == CommonAPI.vote(other_user, object, [1])
	end
	end

	describe "listen/2" do
	test "returns a valid activity" do
	user = insert(:user)

	{:ok, activity} =
	CommonAPI.listen(user, %{
	"title" => "lain radio episode 1",
	"album" => "lain radio",
	"artist" => "lain",
	"length" => 180_000
	})

	object = Object.normalize(activity)

	assert object.data["title"] == "lain radio episode 1"

	assert Visibility.get_visibility(activity) == "public"
	end

	test "respects visibility=private" do
	user = insert(:user)

	{:ok, activity} =
	CommonAPI.listen(user, %{
	"title" => "lain radio episode 1",
	"album" => "lain radio",
	"artist" => "lain",
	"length" => 180_000,
	"visibility" => "private"
	})

	object = Object.normalize(activity)

	assert object.data["title"] == "lain radio episode 1"

	assert Visibility.get_visibility(activity) == "private"
	end
	end
	end

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