akkoma/lib/pleroma/web/activity_pub/activity_pub.ex
2020-03-31 23:55:29 +02:00

1574 lines
48 KiB
Elixir

# 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.ActivityPub do
alias Pleroma.Activity
alias Pleroma.Activity.Ir.Topics
alias Pleroma.Config
alias Pleroma.Constants
alias Pleroma.Conversation
alias Pleroma.Conversation.Participation
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Object.Fetcher
alias Pleroma.Pagination
alias Pleroma.Repo
alias Pleroma.Upload
alias Pleroma.User
alias Pleroma.Web.ActivityPub.MRF
alias Pleroma.Web.ActivityPub.Transmogrifier
alias Pleroma.Web.ActivityPub.Utils
alias Pleroma.Web.Streamer
alias Pleroma.Web.WebFinger
alias Pleroma.Workers.BackgroundWorker
import Ecto.Query
import Pleroma.Web.ActivityPub.Utils
import Pleroma.Web.ActivityPub.Visibility
require Logger
require Pleroma.Constants
# For Announce activities, we filter the recipients based on following status for any actors
# that match actual users. See issue #164 for more information about why this is necessary.
defp get_recipients(%{"type" => "Announce"} = data) do
to = Map.get(data, "to", [])
cc = Map.get(data, "cc", [])
bcc = Map.get(data, "bcc", [])
actor = User.get_cached_by_ap_id(data["actor"])
recipients =
Enum.filter(Enum.concat([to, cc, bcc]), fn recipient ->
case User.get_cached_by_ap_id(recipient) do
nil -> true
user -> User.following?(user, actor)
end
end)
{recipients, to, cc}
end
defp get_recipients(%{"type" => "Create"} = data) do
to = Map.get(data, "to", [])
cc = Map.get(data, "cc", [])
bcc = Map.get(data, "bcc", [])
actor = Map.get(data, "actor", [])
recipients = [to, cc, bcc, [actor]] |> Enum.concat() |> Enum.uniq()
{recipients, to, cc}
end
defp get_recipients(data) do
to = Map.get(data, "to", [])
cc = Map.get(data, "cc", [])
bcc = Map.get(data, "bcc", [])
recipients = Enum.concat([to, cc, bcc])
{recipients, to, cc}
end
defp check_actor_is_active(actor) do
if not is_nil(actor) do
with user <- User.get_cached_by_ap_id(actor),
false <- user.deactivated do
true
else
_e -> false
end
else
true
end
end
defp check_remote_limit(%{"object" => %{"content" => content}}) when not is_nil(content) do
limit = Config.get([:instance, :remote_limit])
String.length(content) <= limit
end
defp check_remote_limit(_), do: true
def increase_note_count_if_public(actor, object) do
if is_public?(object), do: User.increase_note_count(actor), else: {:ok, actor}
end
def decrease_note_count_if_public(actor, object) do
if is_public?(object), do: User.decrease_note_count(actor), else: {:ok, actor}
end
def increase_replies_count_if_reply(%{
"object" => %{"inReplyTo" => reply_ap_id} = object,
"type" => "Create"
}) do
if is_public?(object) do
Object.increase_replies_count(reply_ap_id)
end
end
def increase_replies_count_if_reply(_create_data), do: :noop
def decrease_replies_count_if_reply(%Object{
data: %{"inReplyTo" => reply_ap_id} = object
}) do
if is_public?(object) do
Object.decrease_replies_count(reply_ap_id)
end
end
def decrease_replies_count_if_reply(_object), do: :noop
def increase_poll_votes_if_vote(%{
"object" => %{"inReplyTo" => reply_ap_id, "name" => name},
"type" => "Create"
}) do
Object.increase_vote_count(reply_ap_id, name)
end
def increase_poll_votes_if_vote(_create_data), do: :noop
@spec insert(map(), boolean(), boolean(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
def insert(map, local \\ true, fake \\ false, bypass_actor_check \\ false) when is_map(map) do
with nil <- Activity.normalize(map),
map <- lazy_put_activity_defaults(map, fake),
true <- bypass_actor_check || check_actor_is_active(map["actor"]),
{_, true} <- {:remote_limit_error, check_remote_limit(map)},
{:ok, map} <- MRF.filter(map),
{recipients, _, _} = get_recipients(map),
{:fake, false, map, recipients} <- {:fake, fake, map, recipients},
{:containment, :ok} <- {:containment, Containment.contain_child(map)},
{:ok, map, object} <- insert_full_object(map) do
{:ok, activity} =
Repo.insert(%Activity{
data: map,
local: local,
actor: map["actor"],
recipients: recipients
})
# Splice in the child object if we have one.
activity =
if not is_nil(object) do
Map.put(activity, :object, object)
else
activity
end
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 ->
{:ok, activity}
{:fake, true, map, recipients} ->
activity = %Activity{
data: map,
local: local,
actor: map["actor"],
recipients: recipients,
id: "pleroma:fakeid"
}
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
{:ok, activity}
error ->
{:error, error}
end
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),
Participation.mark_as_read(user, conversation) do
{:ok, conversation}
end
end
defp get_participations({:ok, conversation}) do
conversation
|> Repo.preload(:participations, force: true)
|> Map.get(:participations)
end
defp get_participations(_), do: []
def stream_out_participations(participations) do
participations =
participations
|> Repo.preload(:user)
Streamer.stream("participation", participations)
end
def stream_out_participations(%Object{data: %{"context" => context}}, user) do
with %Conversation{} = conversation <- Conversation.get_for_ap_id(context),
conversation = Repo.preload(conversation, :participations),
last_activity_id =
fetch_latest_activity_id_for_context(conversation.ap_id, %{
"user" => user,
"blocking_user" => user
}) do
if last_activity_id do
stream_out_participations(conversation.participations)
end
end
end
def stream_out_participations(_, _), do: :noop
def stream_out(%Activity{data: %{"type" => data_type}} = activity)
when data_type in ["Create", "Announce", "Delete"] do
activity
|> Topics.get_activity_topics()
|> Streamer.stream(activity)
end
def stream_out(_activity) do
:noop
end
@spec create(map(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
def create(params, fake \\ false) do
with {:ok, result} <- Repo.transaction(fn -> do_create(params, fake) end) do
result
end
end
defp do_create(%{to: to, actor: actor, context: context, object: object} = params, fake) do
additional = params[:additional] || %{}
# only accept false as false value
local = !(params[:local] == false)
published = params[:published]
quick_insert? = Config.get([:env]) == :benchmark
with create_data <-
make_create_data(
%{to: to, actor: actor, published: published, context: context, object: object},
additional
),
{:ok, activity} <- insert(create_data, local, fake),
{:fake, false, activity} <- {:fake, fake, activity},
_ <- increase_replies_count_if_reply(create_data),
_ <- 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),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
{:quick_insert, true, activity} ->
{:ok, activity}
{:fake, true, activity} ->
{:ok, activity}
{:error, message} ->
Repo.rollback(message)
end
end
@spec listen(map()) :: {:ok, Activity.t()} | {:error, any()}
def listen(%{to: to, actor: actor, context: context, object: object} = params) do
additional = params[:additional] || %{}
# only accept false as false value
local = !(params[:local] == false)
published = params[:published]
with listen_data <-
make_listen_data(
%{to: to, actor: actor, published: published, context: context, object: object},
additional
),
{:ok, activity} <- insert(listen_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
end
end
@spec accept(map()) :: {:ok, Activity.t()} | {:error, any()}
def accept(params) do
accept_or_reject("Accept", params)
end
@spec reject(map()) :: {:ok, Activity.t()} | {:error, any()}
def reject(params) do
accept_or_reject("Reject", params)
end
@spec accept_or_reject(String.t(), map()) :: {:ok, Activity.t()} | {:error, any()}
def accept_or_reject(type, %{to: to, actor: actor, object: object} = params) do
local = Map.get(params, :local, true)
activity_id = Map.get(params, :activity_id, nil)
with data <-
%{"to" => to, "type" => type, "actor" => actor.ap_id, "object" => object}
|> Utils.maybe_put("id", activity_id),
{:ok, activity} <- insert(data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
end
end
@spec update(map()) :: {:ok, Activity.t()} | {:error, any()}
def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
local = !(params[:local] == false)
activity_id = params[:activity_id]
with data <- %{
"to" => to,
"cc" => cc,
"type" => "Update",
"actor" => actor,
"object" => object
},
data <- Utils.maybe_put(data, "id", activity_id),
{:ok, activity} <- insert(data, local),
: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
# TODO: This is weird, maybe we shouldn't check here if we can make the activity.
@spec like(User.t(), Object.t(), String.t() | nil, boolean()) ::
{:ok, Activity.t(), Object.t()} | {:error, any()}
def like(user, object, activity_id \\ nil, local \\ true) do
with {:ok, result} <- Repo.transaction(fn -> do_like(user, object, activity_id, local) end) do
result
end
end
defp do_like(
%User{ap_id: ap_id} = user,
%Object{data: %{"id" => _}} = object,
activity_id,
local
) do
with nil <- get_existing_like(ap_id, object),
like_data <- make_like_data(user, object, activity_id),
{:ok, activity} <- insert(like_data, local),
{:ok, object} <- add_like_to_object(activity, object),
:ok <- maybe_federate(activity) do
{:ok, activity, object}
else
%Activity{} = activity ->
{:ok, activity, object}
{: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),
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
with {:ok, result} <-
Repo.transaction(fn -> do_follow(follower, followed, activity_id, local) end) do
result
end
end
defp do_follow(follower, followed, activity_id, local) do
with data <- make_follow_data(follower, followed, activity_id),
{:ok, activity} <- insert(data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
{:error, error} -> Repo.rollback(error)
end
end
@spec unfollow(User.t(), User.t(), String.t() | nil, boolean()) ::
{:ok, Activity.t()} | nil | {:error, any()}
def unfollow(follower, followed, activity_id \\ nil, local \\ true) do
with {:ok, result} <-
Repo.transaction(fn -> do_unfollow(follower, followed, activity_id, local) end) do
result
end
end
defp do_unfollow(follower, followed, activity_id, local) do
with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
{: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),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
nil -> nil
{:error, error} -> Repo.rollback(error)
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
with {:ok, result} <-
Repo.transaction(fn -> do_block(blocker, blocked, activity_id, local) end) do
result
end
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
follow_activity = fetch_latest_follow(blocker, blocked)
if follow_activity, do: unfollow(blocker, blocked, nil, local)
end
with true <- outgoing_blocks,
block_data <- make_block_data(blocker, blocked, activity_id),
{:ok, activity} <- insert(block_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
{:error, error} -> Repo.rollback(error)
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(
%{
actor: actor,
context: _context,
account: account,
statuses: statuses,
content: content
} = params
) do
# only accept false as false value
local = !(params[:local] == false)
forward = !(params[:forward] == false)
additional = params[:additional] || %{}
additional =
if forward do
Map.merge(additional, %{"to" => [], "cc" => [account.ap_id]})
else
Map.merge(additional, %{"to" => [], "cc" => []})
end
with flag_data <- make_flag_data(params, additional),
{:ok, activity} <- insert(flag_data, local),
{:ok, stripped_activity} <- strip_report_status_data(activity),
:ok <- maybe_federate(stripped_activity) do
User.all_superusers()
|> Enum.filter(fn user -> not is_nil(user.email) end)
|> Enum.each(fn superuser ->
superuser
|> Pleroma.Emails.AdminEmail.report(actor, account, statuses, content)
|> Pleroma.Emails.Mailer.deliver_async()
end)
{:ok, activity}
end
end
@spec move(User.t(), User.t(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
def move(%User{} = origin, %User{} = target, local \\ true) do
params = %{
"type" => "Move",
"actor" => origin.ap_id,
"object" => origin.ap_id,
"target" => target.ap_id
}
with true <- origin.ap_id in target.also_known_as,
{:ok, activity} <- insert(params, local) do
maybe_federate(activity)
BackgroundWorker.enqueue("move_following", %{
"origin_id" => origin.id,
"target_id" => target.id
})
{:ok, activity}
else
false -> {:error, "Target account must have the origin in `alsoKnownAs`"}
err -> err
end
end
defp fetch_activities_for_context_query(context, opts) do
public = [Constants.as_public()]
recipients =
if opts["user"],
do: [opts["user"].ap_id | User.following(opts["user"])] ++ public,
else: public
from(activity in Activity)
|> maybe_preload_objects(opts)
|> maybe_preload_bookmarks(opts)
|> maybe_set_thread_muted_field(opts)
|> restrict_blocked(opts)
|> restrict_recipients(recipients, opts["user"])
|> where(
[activity],
fragment(
"?->>'type' = ? and ?->>'context' = ?",
activity.data,
"Create",
activity.data,
^context
)
)
|> exclude_poll_votes(opts)
|> exclude_id(opts)
|> order_by([activity], desc: activity.id)
end
@spec fetch_activities_for_context(String.t(), keyword() | map()) :: [Activity.t()]
def fetch_activities_for_context(context, opts \\ %{}) do
context
|> fetch_activities_for_context_query(opts)
|> Repo.all()
end
@spec fetch_latest_activity_id_for_context(String.t(), keyword() | map()) ::
FlakeId.Ecto.CompatType.t() | nil
def fetch_latest_activity_id_for_context(context, opts \\ %{}) do
context
|> fetch_activities_for_context_query(Map.merge(%{"skip_preload" => true}, opts))
|> limit(1)
|> select([a], a.id)
|> Repo.one()
end
@spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()]
def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do
opts = Map.drop(opts, ["user"])
[Constants.as_public()]
|> fetch_activities_query(opts)
|> restrict_unlisted()
|> Pagination.fetch_paginated(opts, pagination)
end
@valid_visibilities ~w[direct unlisted public private]
defp restrict_visibility(query, %{visibility: visibility})
when is_list(visibility) do
if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
query =
from(
a in query,
where:
fragment(
"activity_visibility(?, ?, ?) = ANY (?)",
a.actor,
a.recipients,
a.data,
^visibility
)
)
query
else
Logger.error("Could not restrict visibility to #{visibility}")
end
end
defp restrict_visibility(query, %{visibility: visibility})
when visibility in @valid_visibilities do
from(
a in query,
where:
fragment("activity_visibility(?, ?, ?) = ?", a.actor, a.recipients, a.data, ^visibility)
)
end
defp restrict_visibility(_query, %{visibility: visibility})
when visibility not in @valid_visibilities do
Logger.error("Could not restrict visibility to #{visibility}")
end
defp restrict_visibility(query, _visibility), do: query
defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
when is_list(visibility) do
if Enum.all?(visibility, &(&1 in @valid_visibilities)) do
from(
a in query,
where:
not fragment(
"activity_visibility(?, ?, ?) = ANY (?)",
a.actor,
a.recipients,
a.data,
^visibility
)
)
else
Logger.error("Could not exclude visibility to #{visibility}")
query
end
end
defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
when visibility in @valid_visibilities do
from(
a in query,
where:
not fragment(
"activity_visibility(?, ?, ?) = ?",
a.actor,
a.recipients,
a.data,
^visibility
)
)
end
defp exclude_visibility(query, %{"exclude_visibilities" => visibility})
when visibility not in @valid_visibilities do
Logger.error("Could not exclude visibility to #{visibility}")
query
end
defp exclude_visibility(query, _visibility), do: query
defp restrict_thread_visibility(query, _, %{skip_thread_containment: true} = _),
do: query
defp restrict_thread_visibility(
query,
%{"user" => %User{skip_thread_containment: true}},
_
),
do: query
defp restrict_thread_visibility(query, %{"user" => %User{ap_id: ap_id}}, _) do
from(
a in query,
where: fragment("thread_visibility(?, (?)->>'id') = true", ^ap_id, a.data)
)
end
defp restrict_thread_visibility(query, _, _), do: query
def fetch_user_abstract_activities(user, reading_user, params \\ %{}) do
params =
params
|> Map.put("user", reading_user)
|> Map.put("actor_id", user.ap_id)
recipients =
user_activities_recipients(%{
"godmode" => params["godmode"],
"reading_user" => reading_user
})
fetch_activities(recipients, params)
|> Enum.reverse()
end
def fetch_user_activities(user, reading_user, params \\ %{}) do
params =
params
|> Map.put("type", ["Create", "Announce"])
|> Map.put("user", reading_user)
|> Map.put("actor_id", user.ap_id)
|> Map.put("pinned_activity_ids", user.pinned_activities)
params =
if User.blocks?(reading_user, user) do
params
else
params
|> Map.put("blocking_user", reading_user)
|> Map.put("muting_user", reading_user)
end
recipients =
user_activities_recipients(%{
"godmode" => params["godmode"],
"reading_user" => reading_user
})
fetch_activities(recipients, params)
|> Enum.reverse()
end
def fetch_statuses(reading_user, params) do
params =
params
|> Map.put("type", ["Create", "Announce"])
recipients =
user_activities_recipients(%{
"godmode" => params["godmode"],
"reading_user" => reading_user
})
fetch_activities(recipients, params, :offset)
|> Enum.reverse()
end
defp user_activities_recipients(%{"godmode" => true}) do
[]
end
defp user_activities_recipients(%{"reading_user" => reading_user}) do
if reading_user do
[Constants.as_public()] ++ [reading_user.ap_id | User.following(reading_user)]
else
[Constants.as_public()]
end
end
defp restrict_since(query, %{"since_id" => ""}), do: query
defp restrict_since(query, %{"since_id" => since_id}) do
from(activity in query, where: activity.id > ^since_id)
end
defp restrict_since(query, _), do: query
defp restrict_tag_reject(_query, %{"tag_reject" => _tag_reject, "skip_preload" => true}) do
raise "Can't use the child object without preloading!"
end
defp restrict_tag_reject(query, %{"tag_reject" => tag_reject})
when is_list(tag_reject) and tag_reject != [] do
from(
[_activity, object] in query,
where: fragment("not (?)->'tag' \\?| (?)", object.data, ^tag_reject)
)
end
defp restrict_tag_reject(query, _), do: query
defp restrict_tag_all(_query, %{"tag_all" => _tag_all, "skip_preload" => true}) do
raise "Can't use the child object without preloading!"
end
defp restrict_tag_all(query, %{"tag_all" => tag_all})
when is_list(tag_all) and tag_all != [] do
from(
[_activity, object] in query,
where: fragment("(?)->'tag' \\?& (?)", object.data, ^tag_all)
)
end
defp restrict_tag_all(query, _), do: query
defp restrict_tag(_query, %{"tag" => _tag, "skip_preload" => true}) do
raise "Can't use the child object without preloading!"
end
defp restrict_tag(query, %{"tag" => tag}) when is_list(tag) do
from(
[_activity, object] in query,
where: fragment("(?)->'tag' \\?| (?)", object.data, ^tag)
)
end
defp restrict_tag(query, %{"tag" => tag}) when is_binary(tag) do
from(
[_activity, object] in query,
where: fragment("(?)->'tag' \\? (?)", object.data, ^tag)
)
end
defp restrict_tag(query, _), do: query
defp restrict_recipients(query, [], _user), do: query
defp restrict_recipients(query, recipients, nil) do
from(activity in query, where: fragment("? && ?", ^recipients, activity.recipients))
end
defp restrict_recipients(query, recipients, user) do
from(
activity in query,
where: fragment("? && ?", ^recipients, activity.recipients),
or_where: activity.actor == ^user.ap_id
)
end
defp restrict_local(query, %{"local_only" => true}) do
from(activity in query, where: activity.local == true)
end
defp restrict_local(query, _), do: query
defp restrict_actor(query, %{"actor_id" => actor_id}) do
from(activity in query, where: activity.actor == ^actor_id)
end
defp restrict_actor(query, _), do: query
defp restrict_type(query, %{"type" => type}) when is_binary(type) do
from(activity in query, where: fragment("?->>'type' = ?", activity.data, ^type))
end
defp restrict_type(query, %{"type" => type}) do
from(activity in query, where: fragment("?->>'type' = ANY(?)", activity.data, ^type))
end
defp restrict_type(query, _), do: query
defp restrict_state(query, %{"state" => state}) do
from(activity in query, where: fragment("?->>'state' = ?", activity.data, ^state))
end
defp restrict_state(query, _), do: query
defp restrict_favorited_by(query, %{"favorited_by" => ap_id}) do
from(
[_activity, object] in query,
where: fragment("(?)->'likes' \\? (?)", object.data, ^ap_id)
)
end
defp restrict_favorited_by(query, _), do: query
defp restrict_media(_query, %{"only_media" => _val, "skip_preload" => true}) do
raise "Can't use the child object without preloading!"
end
defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
from(
[_activity, object] in query,
where: fragment("not (?)->'attachment' = (?)", object.data, ^[])
)
end
defp restrict_media(query, _), do: query
defp restrict_replies(query, %{"exclude_replies" => val}) when val == "true" or val == "1" do
from(
[_activity, object] in query,
where: fragment("?->>'inReplyTo' is null", object.data)
)
end
defp restrict_replies(query, _), do: query
defp restrict_reblogs(query, %{"exclude_reblogs" => val}) when val == "true" or val == "1" do
from(activity in query, where: fragment("?->>'type' != 'Announce'", activity.data))
end
defp restrict_reblogs(query, _), do: query
defp restrict_muted(query, %{"with_muted" => val}) when val in [true, "true", "1"], do: query
defp restrict_muted(query, %{"muting_user" => %User{} = user} = opts) do
mutes = opts["muted_users_ap_ids"] || User.muted_users_ap_ids(user)
query =
from([activity] in query,
where: fragment("not (? = ANY(?))", activity.actor, ^mutes),
where: fragment("not (?->'to' \\?| ?)", activity.data, ^mutes)
)
unless opts["skip_preload"] do
from([thread_mute: tm] in query, where: is_nil(tm.user_id))
else
query
end
end
defp restrict_muted(query, _), do: query
defp restrict_blocked(query, %{"blocking_user" => %User{} = user} = opts) do
blocked_ap_ids = opts["blocked_users_ap_ids"] || User.blocked_users_ap_ids(user)
domain_blocks = user.domain_blocks || []
following_ap_ids = User.get_friends_ap_ids(user)
query =
if has_named_binding?(query, :object), do: query, else: Activity.with_joined_object(query)
from(
[activity, object: o] in query,
where: fragment("not (? = ANY(?))", activity.actor, ^blocked_ap_ids),
where: fragment("not (? && ?)", activity.recipients, ^blocked_ap_ids),
where:
fragment(
"not (?->>'type' = 'Announce' and ?->'to' \\?| ?)",
activity.data,
activity.data,
^blocked_ap_ids
),
where:
fragment(
"(not (split_part(?, '/', 3) = ANY(?))) or ? = ANY(?)",
activity.actor,
^domain_blocks,
activity.actor,
^following_ap_ids
),
where:
fragment(
"(not (split_part(?->>'actor', '/', 3) = ANY(?))) or (?->>'actor') = ANY(?)",
o.data,
^domain_blocks,
o.data,
^following_ap_ids
)
)
end
defp restrict_blocked(query, _), do: query
defp restrict_unlisted(query) do
from(
activity in query,
where:
fragment(
"not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
activity.data,
^[Constants.as_public()]
)
)
end
defp restrict_pinned(query, %{"pinned" => "true", "pinned_activity_ids" => ids}) do
from(activity in query, where: activity.id in ^ids)
end
defp restrict_pinned(query, _), do: query
defp restrict_muted_reblogs(query, %{"muting_user" => %User{} = user} = opts) do
muted_reblogs = opts["reblog_muted_users_ap_ids"] || User.reblog_muted_users_ap_ids(user)
from(
activity in query,
where:
fragment(
"not ( ?->>'type' = 'Announce' and ? = ANY(?))",
activity.data,
activity.actor,
^muted_reblogs
)
)
end
defp restrict_muted_reblogs(query, _), do: query
defp restrict_instance(query, %{"instance" => instance}) do
users =
from(
u in User,
select: u.ap_id,
where: fragment("? LIKE ?", u.nickname, ^"%@#{instance}")
)
|> Repo.all()
from(activity in query, where: activity.actor in ^users)
end
defp restrict_instance(query, _), do: query
defp exclude_poll_votes(query, %{"include_poll_votes" => true}), do: query
defp exclude_poll_votes(query, _) do
if has_named_binding?(query, :object) do
from([activity, object: o] in query,
where: fragment("not(?->>'type' = ?)", o.data, "Answer")
)
else
query
end
end
defp exclude_id(query, %{"exclude_id" => id}) when is_binary(id) do
from(activity in query, where: activity.id != ^id)
end
defp exclude_id(query, _), do: query
defp maybe_preload_objects(query, %{"skip_preload" => true}), do: query
defp maybe_preload_objects(query, _) do
query
|> Activity.with_preloaded_object()
end
defp maybe_preload_bookmarks(query, %{"skip_preload" => true}), do: query
defp maybe_preload_bookmarks(query, opts) do
query
|> Activity.with_preloaded_bookmark(opts["user"])
end
defp maybe_preload_report_notes(query, %{"preload_report_notes" => true}) do
query
|> Activity.with_preloaded_report_notes()
end
defp maybe_preload_report_notes(query, _), do: query
defp maybe_set_thread_muted_field(query, %{"skip_preload" => true}), do: query
defp maybe_set_thread_muted_field(query, opts) do
query
|> Activity.with_set_thread_muted_field(opts["muting_user"] || opts["user"])
end
defp maybe_order(query, %{order: :desc}) do
query
|> order_by(desc: :id)
end
defp maybe_order(query, %{order: :asc}) do
query
|> order_by(asc: :id)
end
defp maybe_order(query, _), do: query
defp fetch_activities_query_ap_ids_ops(opts) do
source_user = opts["muting_user"]
ap_id_relationships = if source_user, do: [:mute, :reblog_mute], else: []
ap_id_relationships =
ap_id_relationships ++
if opts["blocking_user"] && opts["blocking_user"] == source_user do
[:block]
else
[]
end
preloaded_ap_ids = User.outgoing_relationships_ap_ids(source_user, ap_id_relationships)
restrict_blocked_opts = Map.merge(%{"blocked_users_ap_ids" => preloaded_ap_ids[:block]}, opts)
restrict_muted_opts = Map.merge(%{"muted_users_ap_ids" => preloaded_ap_ids[:mute]}, opts)
restrict_muted_reblogs_opts =
Map.merge(%{"reblog_muted_users_ap_ids" => preloaded_ap_ids[:reblog_mute]}, opts)
{restrict_blocked_opts, restrict_muted_opts, restrict_muted_reblogs_opts}
end
def fetch_activities_query(recipients, opts \\ %{}) do
{restrict_blocked_opts, restrict_muted_opts, restrict_muted_reblogs_opts} =
fetch_activities_query_ap_ids_ops(opts)
config = %{
skip_thread_containment: Config.get([:instance, :skip_thread_containment])
}
Activity
|> maybe_preload_objects(opts)
|> maybe_preload_bookmarks(opts)
|> maybe_preload_report_notes(opts)
|> maybe_set_thread_muted_field(opts)
|> maybe_order(opts)
|> restrict_recipients(recipients, opts["user"])
|> restrict_tag(opts)
|> restrict_tag_reject(opts)
|> restrict_tag_all(opts)
|> restrict_since(opts)
|> restrict_local(opts)
|> restrict_actor(opts)
|> restrict_type(opts)
|> restrict_state(opts)
|> restrict_favorited_by(opts)
|> restrict_blocked(restrict_blocked_opts)
|> restrict_muted(restrict_muted_opts)
|> restrict_media(opts)
|> restrict_visibility(opts)
|> restrict_thread_visibility(opts, config)
|> restrict_replies(opts)
|> restrict_reblogs(opts)
|> restrict_pinned(opts)
|> restrict_muted_reblogs(restrict_muted_reblogs_opts)
|> restrict_instance(opts)
|> Activity.restrict_deactivated_users()
|> exclude_poll_votes(opts)
|> exclude_visibility(opts)
end
def fetch_activities(recipients, opts \\ %{}, pagination \\ :keyset) do
list_memberships = Pleroma.List.memberships(opts["user"])
fetch_activities_query(recipients ++ list_memberships, opts)
|> Pagination.fetch_paginated(opts, pagination)
|> Enum.reverse()
|> maybe_update_cc(list_memberships, opts["user"])
end
@doc """
Fetch favorites activities of user with order by sort adds to favorites
"""
@spec fetch_favourites(User.t(), map(), Pagination.type()) :: list(Activity.t())
def fetch_favourites(user, params \\ %{}, pagination \\ :keyset) do
user.ap_id
|> Activity.Queries.by_actor()
|> Activity.Queries.by_type("Like")
|> Activity.with_joined_object()
|> Object.with_joined_activity()
|> select([_like, object, activity], %{activity | object: object})
|> order_by([like, _, _], desc: like.id)
|> Pagination.fetch_paginated(
Map.merge(params, %{"skip_order" => true}),
pagination,
:object_activity
)
end
defp maybe_update_cc(activities, list_memberships, %User{ap_id: user_ap_id})
when is_list(list_memberships) and length(list_memberships) > 0 do
Enum.map(activities, fn
%{data: %{"bcc" => bcc}} = activity when is_list(bcc) and length(bcc) > 0 ->
if Enum.any?(bcc, &(&1 in list_memberships)) do
update_in(activity.data["cc"], &[user_ap_id | &1])
else
activity
end
activity ->
activity
end)
end
defp maybe_update_cc(activities, _, _), do: activities
def fetch_activities_bounded_query(query, recipients, recipients_with_public) do
from(activity in query,
where:
fragment("? && ?", activity.recipients, ^recipients) or
(fragment("? && ?", activity.recipients, ^recipients_with_public) and
^Constants.as_public() in activity.recipients)
)
end
def fetch_activities_bounded(
recipients,
recipients_with_public,
opts \\ %{},
pagination \\ :keyset
) do
fetch_activities_query([], opts)
|> fetch_activities_bounded_query(recipients, recipients_with_public)
|> Pagination.fetch_paginated(opts, pagination)
|> Enum.reverse()
end
@spec upload(Upload.source(), keyword()) :: {:ok, Object.t()} | {:error, any()}
def upload(file, opts \\ []) do
with {:ok, data} <- Upload.store(file, opts) do
obj_data =
if opts[:actor] do
Map.put(data, "actor", opts[:actor])
else
data
end
Repo.insert(%Object{data: obj_data})
end
end
@spec get_actor_url(any()) :: binary() | nil
defp get_actor_url(url) when is_binary(url), do: url
defp get_actor_url(%{"href" => href}) when is_binary(href), do: href
defp get_actor_url(url) when is_list(url) do
url
|> List.first()
|> get_actor_url()
end
defp get_actor_url(_url), do: nil
defp object_to_user_data(data) do
avatar =
data["icon"]["url"] &&
%{
"type" => "Image",
"url" => [%{"href" => data["icon"]["url"]}]
}
banner =
data["image"]["url"] &&
%{
"type" => "Image",
"url" => [%{"href" => data["image"]["url"]}]
}
fields =
data
|> Map.get("attachment", [])
|> Enum.filter(fn %{"type" => t} -> t == "PropertyValue" end)
|> Enum.map(fn fields -> Map.take(fields, ["name", "value"]) end)
locked = data["manuallyApprovesFollowers"] || false
data = Transmogrifier.maybe_fix_user_object(data)
discoverable = data["discoverable"] || false
invisible = data["invisible"] || false
actor_type = data["type"] || "Person"
user_data = %{
ap_id: data["id"],
uri: get_actor_url(data["url"]),
ap_enabled: true,
source_data: data,
banner: banner,
fields: fields,
locked: locked,
discoverable: discoverable,
invisible: invisible,
avatar: avatar,
name: data["name"],
follower_address: data["followers"],
following_address: data["following"],
bio: data["summary"],
actor_type: actor_type,
also_known_as: Map.get(data, "alsoKnownAs", [])
}
# nickname can be nil because of virtual actors
user_data =
if data["preferredUsername"] do
Map.put(
user_data,
:nickname,
"#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}"
)
else
Map.put(user_data, :nickname, nil)
end
{:ok, user_data}
end
def fetch_follow_information_for_user(user) do
with {:ok, following_data} <-
Fetcher.fetch_and_contain_remote_object_from_id(user.following_address),
{:ok, hide_follows} <- collection_private(following_data),
{:ok, followers_data} <-
Fetcher.fetch_and_contain_remote_object_from_id(user.follower_address),
{:ok, hide_followers} <- collection_private(followers_data) do
{:ok,
%{
hide_follows: hide_follows,
follower_count: normalize_counter(followers_data["totalItems"]),
following_count: normalize_counter(following_data["totalItems"]),
hide_followers: hide_followers
}}
else
{:error, _} = e -> e
e -> {:error, e}
end
end
defp normalize_counter(counter) when is_integer(counter), do: counter
defp normalize_counter(_), do: 0
defp maybe_update_follow_information(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)
else
{:enabled, false} ->
data
e ->
Logger.error(
"Follower/Following counter update for #{data.ap_id} failed.\n" <> inspect(e)
)
data
end
end
defp collection_private(%{"first" => %{"type" => type}})
when type in ["CollectionPage", "OrderedCollectionPage"],
do: {:ok, false}
defp collection_private(%{"first" => first}) do
with {:ok, %{"type" => type}} when type in ["CollectionPage", "OrderedCollectionPage"] <-
Fetcher.fetch_and_contain_remote_object_from_id(first) do
{:ok, false}
else
{:error, {:ok, %{status: code}}} when code in [401, 403] -> {:ok, true}
{:error, _} = e -> e
e -> {:error, e}
end
end
defp collection_private(_data), do: {:ok, true}
def user_data_from_user_object(data) do
with {:ok, data} <- MRF.filter(data),
{:ok, data} <- object_to_user_data(data) do
{:ok, data}
else
e -> {:error, e}
end
end
def fetch_and_prepare_user_from_ap_id(ap_id) do
with {:ok, data} <- Fetcher.fetch_and_contain_remote_object_from_id(ap_id),
{:ok, data} <- user_data_from_user_object(data),
data <- maybe_update_follow_information(data) do
{:ok, data}
else
{:error, "Object has been deleted"} = e ->
Logger.debug("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
{:error, e}
e ->
Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
{:error, e}
end
end
def make_user_from_ap_id(ap_id) do
if _user = User.get_cached_by_ap_id(ap_id) do
Transmogrifier.upgrade_user_from_ap_id(ap_id)
else
with {:ok, data} <- fetch_and_prepare_user_from_ap_id(ap_id) do
User.insert_or_update_user(data)
else
e -> {:error, e}
end
end
end
def make_user_from_nickname(nickname) do
with {:ok, %{"ap_id" => ap_id}} when not is_nil(ap_id) <- WebFinger.finger(nickname) do
make_user_from_ap_id(ap_id)
else
_e -> {:error, "No AP id in WebFinger"}
end
end
# filter out broken threads
def contain_broken_threads(%Activity{} = activity, %User{} = user) do
entire_thread_visible_for_user?(activity, user)
end
# do post-processing on a specific activity
def contain_activity(%Activity{} = activity, %User{} = user) do
contain_broken_threads(activity, user)
end
def fetch_direct_messages_query do
Activity
|> restrict_type(%{"type" => "Create"})
|> restrict_visibility(%{visibility: "direct"})
|> order_by([activity], asc: activity.id)
end
end