akkoma/lib/pleroma/web/mastodon_api/controllers/status_controller.ex

475 lines
15 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MastodonAPI.StatusController do
use Pleroma.Web, :controller
import Pleroma.Web.ControllerHelper,
only: [try_render: 3, add_link_headers: 2]
require Ecto.Query
alias Pleroma.Activity
alias Pleroma.Bookmark
alias Pleroma.Object
alias Pleroma.Repo
alias Pleroma.Config
alias Pleroma.ScheduledActivity
alias Pleroma.User
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.MastodonAPI.AccountView
alias Pleroma.Web.MastodonAPI.ScheduledActivityView
alias Pleroma.Web.OAuth.Token
alias Pleroma.Web.Plugs.OAuthScopesPlug
alias Pleroma.Web.Plugs.RateLimiter
plug(Pleroma.Web.ApiSpec.CastAndValidate)
plug(:skip_public_check when action in [:index, :show])
@unauthenticated_access %{fallback: :proceed_unauthenticated, scopes: []}
@cachex Pleroma.Config.get([:cachex, :provider], Cachex)
plug(
OAuthScopesPlug,
%{@unauthenticated_access | scopes: ["read:statuses"]}
when action in [
:index,
:show,
:context,
:translate
]
)
plug(
OAuthScopesPlug,
%{scopes: ["write:statuses"]}
when action in [
:create,
:delete,
:reblog,
:unreblog
]
)
plug(OAuthScopesPlug, %{scopes: ["read:favourites"]} when action == :favourites)
plug(
OAuthScopesPlug,
%{scopes: ["write:favourites"]} when action in [:favourite, :unfavourite]
)
plug(
OAuthScopesPlug,
%{scopes: ["write:mutes"]} when action in [:mute_conversation, :unmute_conversation]
)
plug(
OAuthScopesPlug,
%{@unauthenticated_access | scopes: ["read:accounts"]}
when action in [:favourited_by, :reblogged_by]
)
plug(OAuthScopesPlug, %{scopes: ["write:accounts"]} when action in [:pin, :unpin])
# Note: scope not present in Mastodon: read:bookmarks
plug(OAuthScopesPlug, %{scopes: ["read:bookmarks"]} when action == :bookmarks)
# Note: scope not present in Mastodon: write:bookmarks
plug(
OAuthScopesPlug,
%{scopes: ["write:bookmarks"]} when action in [:bookmark, :unbookmark]
)
@rate_limited_status_actions ~w(reblog unreblog favourite unfavourite create delete)a
plug(
RateLimiter,
[name: :status_id_action, bucket_name: "status_id_action:reblog_unreblog", params: [:id]]
when action in ~w(reblog unreblog)a
)
plug(
RateLimiter,
[name: :status_id_action, bucket_name: "status_id_action:fav_unfav", params: [:id]]
when action in ~w(favourite unfavourite)a
)
plug(RateLimiter, [name: :statuses_actions] when action in @rate_limited_status_actions)
action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.StatusOperation
@doc """
GET `/api/v1/statuses?ids[]=1&ids[]=2`
`ids` query param is required
"""
def index(%{assigns: %{user: user}} = conn, %{ids: ids} = params) do
limit = 100
activities =
ids
|> Enum.take(limit)
|> Activity.all_by_ids_with_object()
|> Enum.filter(&Visibility.visible_for_user?(&1, user))
render(conn, "index.json",
activities: activities,
for: user,
as: :activity,
with_muted: Map.get(params, :with_muted, false)
)
end
@doc """
POST /api/v1/statuses
"""
# Creates a scheduled status when `scheduled_at` param is present and it's far enough
def create(
%{
assigns: %{user: user},
body_params: %{status: _, scheduled_at: scheduled_at} = params
} = conn,
_
)
when not is_nil(scheduled_at) do
params =
Map.put(params, :in_reply_to_status_id, params[:in_reply_to_id])
|> put_application(conn)
attrs = %{
params: Map.new(params, fn {key, value} -> {to_string(key), value} end),
scheduled_at: scheduled_at
}
with {:far_enough, true} <- {:far_enough, ScheduledActivity.far_enough?(scheduled_at)},
{:ok, scheduled_activity} <- ScheduledActivity.create(user, attrs) do
conn
|> put_view(ScheduledActivityView)
|> render("show.json", scheduled_activity: scheduled_activity)
else
{:far_enough, _} ->
params = Map.drop(params, [:scheduled_at])
create(%Plug.Conn{conn | body_params: params}, %{})
error ->
error
end
end
# Creates a regular status
def create(%{assigns: %{user: user}, body_params: %{status: _} = params} = conn, _) do
params =
Map.put(params, :in_reply_to_status_id, params[:in_reply_to_id])
|> put_application(conn)
with {:ok, activity} <- CommonAPI.post(user, params) do
try_render(conn, "show.json",
activity: activity,
for: user,
as: :activity,
with_direct_conversation_id: true
)
else
{:error, {:reject, message}} ->
conn
|> put_status(:unprocessable_entity)
|> json(%{error: message})
{:error, message} ->
conn
|> put_status(:unprocessable_entity)
|> json(%{error: message})
end
end
def create(%{assigns: %{user: _user}, body_params: %{media_ids: _} = params} = conn, _) do
params = Map.put(params, :status, "")
create(%Plug.Conn{conn | body_params: params}, %{})
end
@doc "GET /api/v1/statuses/:id"
def show(%{assigns: %{user: user}} = conn, %{id: id} = params) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
true <- Visibility.visible_for_user?(activity, user) do
try_render(conn, "show.json",
activity: activity,
for: user,
with_direct_conversation_id: true,
with_muted: Map.get(params, :with_muted, false)
)
else
_ -> {:error, :not_found}
end
end
@doc "DELETE /api/v1/statuses/:id"
def delete(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
{:ok, %Activity{}} <- CommonAPI.delete(id, user) do
try_render(conn, "show.json",
activity: activity,
for: user,
with_direct_conversation_id: true,
with_source: true
)
else
_e -> {:error, :not_found}
end
end
@doc "POST /api/v1/statuses/:id/reblog"
def reblog(%{assigns: %{user: user}, body_params: params} = conn, %{id: ap_id_or_id}) do
with {:ok, announce} <- CommonAPI.repeat(ap_id_or_id, user, params),
%Activity{} = announce <- Activity.normalize(announce.data) do
try_render(conn, "show.json", %{activity: announce, for: user, as: :activity})
end
end
@doc "POST /api/v1/statuses/:id/unreblog"
def unreblog(%{assigns: %{user: user}} = conn, %{id: activity_id}) do
with {:ok, _unannounce} <- CommonAPI.unrepeat(activity_id, user),
%Activity{} = activity <- Activity.get_by_id(activity_id) do
try_render(conn, "show.json", %{activity: activity, for: user, as: :activity})
end
end
@doc "POST /api/v1/statuses/:id/favourite"
def favourite(%{assigns: %{user: user}} = conn, %{id: activity_id}) do
with {:ok, _fav} <- CommonAPI.favorite(user, activity_id),
%Activity{} = activity <- Activity.get_by_id(activity_id) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/unfavourite"
def unfavourite(%{assigns: %{user: user}} = conn, %{id: activity_id}) do
with {:ok, _unfav} <- CommonAPI.unfavorite(activity_id, user),
%Activity{} = activity <- Activity.get_by_id(activity_id) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/pin"
def pin(%{assigns: %{user: user}} = conn, %{id: ap_id_or_id}) do
with {:ok, activity} <- CommonAPI.pin(ap_id_or_id, user) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
else
{:error, :pinned_statuses_limit_reached} ->
{:error, "You have already pinned the maximum number of statuses"}
{:error, :ownership_error} ->
{:error, :unprocessable_entity, "Someone else's status cannot be pinned"}
{:error, :visibility_error} ->
{:error, :unprocessable_entity, "Non-public status cannot be pinned"}
error ->
error
end
end
@doc "POST /api/v1/statuses/:id/unpin"
def unpin(%{assigns: %{user: user}} = conn, %{id: ap_id_or_id}) do
with {:ok, activity} <- CommonAPI.unpin(ap_id_or_id, user) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/bookmark"
def bookmark(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
%User{} = user <- User.get_cached_by_nickname(user.nickname),
true <- Visibility.visible_for_user?(activity, user),
{:ok, _bookmark} <- Bookmark.create(user.id, activity.id) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/unbookmark"
def unbookmark(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
%User{} = user <- User.get_cached_by_nickname(user.nickname),
true <- Visibility.visible_for_user?(activity, user),
{:ok, _bookmark} <- Bookmark.destroy(user.id, activity.id) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/mute"
def mute_conversation(%{assigns: %{user: user}, body_params: params} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id(id),
{:ok, activity} <- CommonAPI.add_mute(user, activity, params) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "POST /api/v1/statuses/:id/unmute"
def unmute_conversation(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id(id),
{:ok, activity} <- CommonAPI.remove_mute(user, activity) do
try_render(conn, "show.json", activity: activity, for: user, as: :activity)
end
end
@doc "GET /api/v1/statuses/:id/favourited_by"
def favourited_by(%{assigns: %{user: user}} = conn, %{id: id}) do
with true <- Pleroma.Config.get([:instance, :show_reactions]),
%Activity{} = activity <- Activity.get_by_id_with_object(id),
{:visible, true} <- {:visible, Visibility.visible_for_user?(activity, user)},
%Object{data: %{"likes" => likes}} <- Object.normalize(activity, fetch: false) do
users =
User
|> Ecto.Query.where([u], u.ap_id in ^likes)
|> Repo.all()
|> Enum.filter(&(not User.blocks?(user, &1)))
conn
|> put_view(AccountView)
|> render("index.json", for: user, users: users, as: :user)
else
{:visible, false} -> {:error, :not_found}
_ -> json(conn, [])
end
end
@doc "GET /api/v1/statuses/:id/reblogged_by"
def reblogged_by(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
{:visible, true} <- {:visible, Visibility.visible_for_user?(activity, user)},
%Object{data: %{"announcements" => announces, "id" => ap_id}} <-
Object.normalize(activity, fetch: false) do
announces =
"Announce"
|> Activity.Queries.by_type()
|> Ecto.Query.where([a], a.actor in ^announces)
# this is to use the index
|> Activity.Queries.by_object_id(ap_id)
|> Repo.all()
|> Enum.filter(&Visibility.visible_for_user?(&1, user))
|> Enum.map(& &1.actor)
|> Enum.uniq()
users =
User
|> Ecto.Query.where([u], u.ap_id in ^announces)
|> Repo.all()
|> Enum.filter(&(not User.blocks?(user, &1)))
conn
|> put_view(AccountView)
|> render("index.json", for: user, users: users, as: :user)
else
{:visible, false} -> {:error, :not_found}
_ -> json(conn, [])
end
end
@doc "GET /api/v1/statuses/:id/context"
def context(%{assigns: %{user: user}} = conn, %{id: id}) do
with %Activity{} = activity <- Activity.get_by_id(id) do
activities =
activity.data["context"]
|> ActivityPub.fetch_activities_for_context(%{
blocking_user: user,
user: user,
exclude_id: activity.id
})
|> Enum.filter(fn activity -> Visibility.visible_for_user?(activity, user) end)
render(conn, "context.json", activity: activity, activities: activities, user: user)
end
end
@doc "GET /api/v1/favourites"
def favourites(%{assigns: %{user: %User{} = user}} = conn, params) do
activities = ActivityPub.fetch_favourites(user, params)
conn
|> add_link_headers(activities)
|> render("index.json",
activities: activities,
for: user,
as: :activity
)
end
@doc "GET /api/v1/bookmarks"
def bookmarks(%{assigns: %{user: user}} = conn, params) do
user = User.get_cached_by_id(user.id)
bookmarks =
user.id
|> Bookmark.for_user_query()
|> Pleroma.Pagination.fetch_paginated(params)
activities =
bookmarks
|> Enum.map(fn b -> Map.put(b.activity, :bookmark, Map.delete(b, :activity)) end)
conn
|> add_link_headers(bookmarks)
|> render("index.json",
activities: activities,
for: user,
as: :activity
)
end
@doc "GET /api/v1/statuses/:id/translations/:language"
def translate(%{assigns: %{user: user}} = conn, %{id: id, language: language}) do
with {:enabled, true} <- {:enabled, Config.get([:translator, :enabled])},
%Activity{} = activity <- Activity.get_by_id_with_object(id),
{:visible, true} <- {:visible, Visibility.visible_for_user?(activity, user)},
translation_module <- Config.get([:translator, :module]),
{:ok, detected, translation} <-
fetch_or_translate(
activity.id,
activity.object.data["content"],
language,
translation_module
) do
json(conn, %{detected_language: detected, text: translation})
else
{:enabled, false} ->
conn
|> put_status(:bad_request)
|> json(%{"error" => "Translation is not enabled"})
{:visible, false} ->
{:error, :not_found}
e ->
e
end
end
defp fetch_or_translate(status_id, text, language, translation_module) do
@cachex.fetch!(:user_cache, "translations:#{status_id}:#{language}", fn _ ->
value = translation_module.translate(text, language)
with {:ok, _, _} <- value do
value
else
_ -> {:ignore, value}
end
end)
end
defp put_application(params, %{assigns: %{token: %Token{user: %User{} = user} = token}} = _conn) do
if user.disclose_client do
%{client_name: client_name, website: website} = Repo.preload(token, :app).app
Map.put(params, :generator, %{type: "Application", name: client_name, url: website})
else
Map.put(params, :generator, nil)
end
end
defp put_application(params, _), do: Map.put(params, :generator, nil)
end