akkoma/lib/pleroma/web/activity_pub/activity_pub.ex

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.ActivityPub.ActivityPub do
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alias Pleroma.Activity
alias Pleroma.Activity.Ir.Topics
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alias Pleroma.Config
alias Pleroma.Constants
alias Pleroma.Conversation
alias Pleroma.Conversation.Participation
alias Pleroma.Notification
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alias Pleroma.Object
alias Pleroma.Object.Containment
alias Pleroma.Object.Fetcher
alias Pleroma.Pagination
alias Pleroma.Repo
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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
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import Ecto.Query
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import Pleroma.Web.ActivityPub.Utils
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import Pleroma.Web.ActivityPub.Visibility
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require Logger
require Pleroma.Constants
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# 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
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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 =
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Enum.filter(Enum.concat([to, cc, bcc]), fn recipient ->
case User.get_cached_by_ap_id(recipient) do
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nil -> true
user -> User.following?(user, actor)
end
end)
{recipients, to, cc}
end
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defp get_recipients(%{"type" => "Create"} = data) do
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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()
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{recipients, to, cc}
end
defp get_recipients(data) do
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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
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true
else
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_e -> false
end
else
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true
end
end
defp check_remote_limit(%{"object" => %{"content" => content}}) when not is_nil(content) do
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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(%{
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"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{
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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
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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 persist(map(), keyword()) :: {:ok, Activity.t() | Object.t()}
def persist(object, meta) do
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with local <- Keyword.fetch!(meta, :local),
{recipients, _, _} <- get_recipients(object),
{:ok, activity} <-
Repo.insert(%Activity{
data: object,
local: local,
recipients: recipients,
actor: object["actor"]
}) do
{:ok, activity, meta}
end
end
@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),
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true <- bypass_actor_check || check_actor_is_active(map["actor"]),
{_, true} <- {:remote_limit_error, check_remote_limit(map)},
{:ok, map} <- MRF.filter(map),
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{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
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{:ok, activity} =
Repo.insert(%Activity{
data: map,
local: local,
actor: map["actor"],
recipients: recipients
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})
# 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}
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else
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%Activity{} = activity ->
{:ok, activity}
{:fake, true, map, recipients} ->
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activity = %Activity{
data: map,
local: local,
actor: map["actor"],
recipients: recipients,
id: "pleroma:fakeid"
}
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Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
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{:ok, activity}
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error ->
{:error, error}
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end
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end
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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
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additional = params[:additional] || %{}
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# only accept false as false value
local = !(params[:local] == false)
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published = params[:published]
quick_insert? = Config.get([:env]) == :benchmark
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with create_data <-
make_create_data(
%{to: to, actor: actor, published: published, context: context, object: object},
additional
),
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{:ok, activity} <- insert(create_data, local, fake),
{:fake, false, activity} <- {:fake, fake, activity},
_ <- increase_replies_count_if_reply(create_data),
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_ <- increase_poll_votes_if_vote(create_data),
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{: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}
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else
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{:quick_insert, true, activity} ->
{:ok, activity}
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{:fake, true, activity} ->
{:ok, activity}
{:error, message} ->
Repo.rollback(message)
end
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end
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@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()}
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def update(%{to: to, cc: cc, actor: actor, object: object} = params) do
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local = !(params[:local] == false)
activity_id = params[:activity_id]
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with data <- %{
"to" => to,
"cc" => cc,
"type" => "Update",
"actor" => actor,
"object" => object
},
data <- Utils.maybe_put(data, "id", activity_id),
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{: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()}
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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
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with local <- Keyword.get(options, :local, true),
activity_id <- Keyword.get(options, :activity_id, nil),
true <- Pleroma.Emoji.is_unicode_emoji?(emoji),
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reaction_data <- make_emoji_reaction_data(user, object, emoji, activity_id),
{:ok, activity} <- insert(reaction_data, local),
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{:ok, object} <- add_emoji_reaction_to_object(activity, object),
:ok <- maybe_federate(activity) do
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{:ok, activity, object}
else
false -> {:error, false}
{:error, error} -> Repo.rollback(error)
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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
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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
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end
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# 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
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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
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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}
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else
nil -> {:ok, object}
{:error, error} -> Repo.rollback(error)
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end
end
@spec announce(User.t(), Object.t(), String.t() | nil, boolean(), boolean()) ::
{:ok, Activity.t(), Object.t()} | {:error, any()}
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def announce(
%User{ap_id: _} = user,
%Object{data: %{"id" => _}} = object,
activity_id \\ nil,
local \\ true,
public \\ true
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) 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),
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{: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)
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end
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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
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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),
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: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}
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else
nil -> {:ok, object}
{:error, error} -> Repo.rollback(error)
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end
end
@spec follow(User.t(), User.t(), String.t() | nil, boolean()) ::
{:ok, Activity.t()} | {:error, any()}
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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
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with data <- make_follow_data(follower, followed, activity_id),
{:ok, activity} <- insert(data, local),
:ok <- maybe_federate(activity) do
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{:ok, activity}
else
{:error, error} -> Repo.rollback(error)
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end
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end
@spec unfollow(User.t(), User.t(), String.t() | nil, boolean()) ::
{:ok, Activity.t()} | nil | {:error, any()}
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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
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with %Activity{} = follow_activity <- fetch_latest_follow(follower, followed),
{:ok, follow_activity} <- update_follow_state(follow_activity, "cancelled"),
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unfollow_data <- make_unfollow_data(follower, followed, follow_activity, activity_id),
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{:ok, activity} <- insert(unfollow_data, local),
:ok <- maybe_federate(activity) do
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{: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
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end
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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)
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user = User.get_cached_by_ap_id(actor)
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to = (object.data["to"] || []) ++ (object.data["cc"] || [])
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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
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{:ok, activity}
else
{:error, error} ->
Repo.rollback(error)
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end
end
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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()}
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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
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outgoing_blocks = Config.get([:activitypub, :outgoing_blocks])
unfollow_blocked = Config.get([:activitypub, :unfollow_blocked])
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if unfollow_blocked do
follow_activity = fetch_latest_follow(blocker, blocked)
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if follow_activity, do: unfollow(blocker, blocked, nil, local)
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end
with true <- outgoing_blocks,
block_data <- make_block_data(blocker, blocked, activity_id),
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{:ok, activity} <- insert(block_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
{:error, error} -> Repo.rollback(error)
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end
end
@spec unblock(User.t(), User.t(), String.t() | nil, boolean()) ::
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{:ok, Activity.t()} | {:error, any()} | nil
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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
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with %Activity{} = block_activity <- fetch_latest_block(blocker, blocked),
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unblock_data <- make_unblock_data(blocker, blocked, block_activity, activity_id),
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{:ok, activity} <- insert(unblock_data, local),
:ok <- maybe_federate(activity) do
{:ok, activity}
else
nil -> nil
{:error, error} -> Repo.rollback(error)
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end
end
@spec flag(map()) :: {:ok, Activity.t()} | {:error, any()}
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def flag(
%{
actor: actor,
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context: _context,
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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] || %{}
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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
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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
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end
@spec move(User.t(), User.t(), boolean()) :: {:ok, Activity.t()} | {:error, any()}
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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()]
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recipients =
if opts["user"],
do: [opts["user"].ap_id | User.following(opts["user"])] ++ public,
else: public
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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
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)
)
|> 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
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@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()
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end
@spec fetch_public_activities(map(), Pagination.type()) :: [Activity.t()]
def fetch_public_activities(opts \\ %{}, pagination \\ :keyset) do
opts = Map.drop(opts, ["user"])
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[Constants.as_public()]
|> fetch_activities_query(opts)
|> restrict_unlisted()
|> Pagination.fetch_paginated(opts, pagination)
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end
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@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
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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)
)
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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
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defp restrict_since(query, %{"since_id" => since_id}) do
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from(activity in query, where: activity.id > ^since_id)
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end
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defp restrict_since(query, _), do: query
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defp restrict_tag_reject(_query, %{"tag_reject" => _tag_reject, "skip_preload" => true}) do
raise "Can't use the child object without preloading!"
end
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defp restrict_tag_reject(query, %{"tag_reject" => tag_reject})
when is_list(tag_reject) and tag_reject != [] do
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from(
[_activity, object] in query,
where: fragment("not (?)->'tag' \\?| (?)", object.data, ^tag_reject)
)
end
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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
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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)
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)
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)
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)
end
defp restrict_tag(query, %{"tag" => tag}) when is_binary(tag) do
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from(
[_activity, object] in query,
where: fragment("(?)->'tag' \\? (?)", object.data, ^tag)
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)
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end
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defp restrict_tag(query, _), do: query
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defp restrict_recipients(query, [], _user), do: query
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defp restrict_recipients(query, recipients, nil) do
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from(activity in query, where: fragment("? && ?", ^recipients, activity.recipients))
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end
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defp restrict_recipients(query, recipients, user) do
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from(
activity in query,
where: fragment("? && ?", ^recipients, activity.recipients),
or_where: activity.actor == ^user.ap_id
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)
end
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defp restrict_local(query, %{"local_only" => true}) do
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from(activity in query, where: activity.local == true)
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end
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defp restrict_local(query, _), do: query
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defp restrict_actor(query, %{"actor_id" => actor_id}) do
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from(activity in query, where: activity.actor == ^actor_id)
end
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defp restrict_actor(query, _), do: query
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defp restrict_type(query, %{"type" => type}) when is_binary(type) do
from(activity in query, where: fragment("?->>'type' = ?", activity.data, ^type))
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end
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defp restrict_type(query, %{"type" => type}) do
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from(activity in query, where: fragment("?->>'type' = ANY(?)", activity.data, ^type))
end
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defp restrict_type(query, _), do: query
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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
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from(
[_activity, object] in query,
where: fragment("(?)->'likes' \\? (?)", object.data, ^ap_id)
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)
end
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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
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defp restrict_media(query, %{"only_media" => val}) when val == "true" or val == "1" do
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from(
[_activity, object] in query,
where: fragment("not (?)->'attachment' = (?)", object.data, ^[])
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)
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end
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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
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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 || []
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following_ap_ids = User.get_friends_ap_ids(user)
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query =
if has_named_binding?(query, :object), do: query, else: Activity.with_joined_object(query)
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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
),
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where:
fragment(
"(not (split_part(?, '/', 3) = ANY(?))) or ? = ANY(?)",
activity.actor,
^domain_blocks,
activity.actor,
^following_ap_ids
),
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where:
fragment(
"(not (split_part(?->>'actor', '/', 3) = ANY(?))) or (?->>'actor') = ANY(?)",
o.data,
^domain_blocks,
o.data,
^following_ap_ids
)
)
end
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defp restrict_blocked(query, _), do: query
defp restrict_unlisted(query) do
from(
activity in query,
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where:
fragment(
"not (coalesce(?->'cc', '{}'::jsonb) \\?| ?)",
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activity.data,
^[Constants.as_public()]
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)
)
end
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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)
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from(
activity in query,
where:
fragment(
"not ( ?->>'type' = 'Announce' and ? = ANY(?))",
activity.data,
activity.actor,
^muted_reblogs
)
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)
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
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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
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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])
}
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Activity
|> maybe_preload_objects(opts)
|> maybe_preload_bookmarks(opts)
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|> maybe_preload_report_notes(opts)
|> maybe_set_thread_muted_field(opts)
|> maybe_order(opts)
|> restrict_recipients(recipients, opts["user"])
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|> restrict_tag(opts)
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|> restrict_tag_reject(opts)
|> restrict_tag_all(opts)
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|> restrict_since(opts)
|> restrict_local(opts)
|> restrict_actor(opts)
|> restrict_type(opts)
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|> restrict_state(opts)
|> restrict_favorited_by(opts)
|> restrict_blocked(restrict_blocked_opts)
|> restrict_muted(restrict_muted_opts)
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|> restrict_media(opts)
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|> restrict_visibility(opts)
|> restrict_thread_visibility(opts, config)
|> restrict_replies(opts)
|> restrict_reblogs(opts)
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|> restrict_pinned(opts)
|> restrict_muted_reblogs(restrict_muted_reblogs_opts)
|> restrict_instance(opts)
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|> Activity.restrict_deactivated_users()
|> exclude_poll_votes(opts)
|> exclude_visibility(opts)
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end
def fetch_activities(recipients, opts \\ %{}, pagination \\ :keyset) do
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list_memberships = Pleroma.List.memberships(opts["user"])
fetch_activities_query(recipients ++ list_memberships, opts)
|> Pagination.fetch_paginated(opts, pagination)
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|> Enum.reverse()
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|> 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())
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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})
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|> order_by([like, _, _], desc: like.id)
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|> 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
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Enum.map(activities, fn
%{data: %{"bcc" => bcc}} = activity when is_list(bcc) and length(bcc) > 0 ->
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if Enum.any?(bcc, &(&1 in list_memberships)) do
update_in(activity.data["cc"], &[user_ap_id | &1])
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else
activity
end
activity ->
activity
end)
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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()}
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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
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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
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avatar =
data["icon"]["url"] &&
%{
"type" => "Image",
"url" => [%{"href" => data["icon"]["url"]}]
}
banner =
data["image"]["url"] &&
%{
"type" => "Image",
"url" => [%{"href" => data["image"]["url"]}]
}
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fields =
data
|> Map.get("attachment", [])
|> Enum.filter(fn %{"type" => t} -> t == "PropertyValue" end)
|> Enum.map(fn fields -> Map.take(fields, ["name", "value"]) end)
emojis =
data
|> Map.get("tag", [])
|> Enum.filter(fn %{"type" => t} -> t == "Emoji" end)
|> Enum.reduce(%{}, fn %{"icon" => %{"url" => url}, "name" => name}, acc ->
Map.put(acc, String.trim(name, ":"), url)
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"
public_key =
if is_map(data["publicKey"]) && is_binary(data["publicKey"]["publicKeyPem"]) do
data["publicKey"]["publicKeyPem"]
else
nil
end
shared_inbox =
if is_map(data["endpoints"]) && is_binary(data["endpoints"]["sharedInbox"]) do
data["endpoints"]["sharedInbox"]
else
nil
end
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user_data = %{
ap_id: data["id"],
uri: get_actor_url(data["url"]),
ap_enabled: true,
source_data: data,
banner: banner,
fields: fields,
emoji: emojis,
locked: locked,
discoverable: discoverable,
invisible: invisible,
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avatar: avatar,
name: data["name"],
follower_address: data["followers"],
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following_address: data["following"],
bio: data["summary"],
actor_type: actor_type,
also_known_as: Map.get(data, "alsoKnownAs", []),
public_key: public_key,
inbox: data["inbox"],
shared_inbox: shared_inbox
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}
# nickname can be nil because of virtual actors
user_data =
if data["preferredUsername"] do
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Map.put(
user_data,
:nickname,
"#{data["preferredUsername"]}@#{URI.parse(data["id"]).host}"
)
else
Map.put(user_data, :nickname, nil)
end
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{: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
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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}
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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
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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
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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}
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else
{:error, "Object has been deleted"} = e ->
Logger.debug("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
{:error, e}
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e ->
Logger.error("Could not decode user at fetch #{ap_id}, #{inspect(e)}")
{:error, e}
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end
end
def make_user_from_ap_id(ap_id) do
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if _user = User.get_cached_by_ap_id(ap_id) do
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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)
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else
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e -> {:error, e}
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end
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end
end
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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)
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else
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_e -> {:error, "No AP id in WebFinger"}
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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
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contain_broken_threads(activity, user)
end
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def fetch_direct_messages_query do
Activity
|> restrict_type(%{"type" => "Create"})
|> restrict_visibility(%{visibility: "direct"})
|> order_by([activity], asc: activity.id)
end
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end