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

1701 lines
53 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
use Pleroma.Web, :controller
import Pleroma.Web.ControllerHelper,
only: [json_response: 3, add_link_headers: 5, add_link_headers: 4, add_link_headers: 3]
alias Ecto.Changeset
alias Pleroma.Activity
alias Pleroma.Bookmark
alias Pleroma.Config
alias Pleroma.Conversation.Participation
alias Pleroma.Filter
alias Pleroma.Formatter
alias Pleroma.HTTP
alias Pleroma.Notification
alias Pleroma.Object
alias Pleroma.Pagination
alias Pleroma.Plugs.RateLimiter
alias Pleroma.Repo
alias Pleroma.ScheduledActivity
alias Pleroma.Stats
alias Pleroma.User
alias Pleroma.Web
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Visibility
alias Pleroma.Web.CommonAPI
alias Pleroma.Web.MastodonAPI.AccountView
alias Pleroma.Web.MastodonAPI.AppView
alias Pleroma.Web.MastodonAPI.ConversationView
alias Pleroma.Web.MastodonAPI.FilterView
alias Pleroma.Web.MastodonAPI.ListView
alias Pleroma.Web.MastodonAPI.MastodonAPI
alias Pleroma.Web.MastodonAPI.MastodonView
alias Pleroma.Web.MastodonAPI.NotificationView
alias Pleroma.Web.MastodonAPI.ReportView
alias Pleroma.Web.MastodonAPI.ScheduledActivityView
alias Pleroma.Web.MastodonAPI.StatusView
alias Pleroma.Web.MediaProxy
alias Pleroma.Web.OAuth.App
alias Pleroma.Web.OAuth.Authorization
alias Pleroma.Web.OAuth.Scopes
alias Pleroma.Web.OAuth.Token
alias Pleroma.Web.TwitterAPI.TwitterAPI
alias Pleroma.Web.ControllerHelper
import Ecto.Query
require Logger
require Pleroma.Constants
@rate_limited_relations_actions ~w(follow unfollow)a
@rate_limited_status_actions ~w(reblog_status unreblog_status fav_status unfav_status
post_status delete_status)a
plug(
RateLimiter,
{:status_id_action, bucket_name: "status_id_action:reblog_unreblog", params: ["id"]}
when action in ~w(reblog_status unreblog_status)a
)
plug(
RateLimiter,
{:status_id_action, bucket_name: "status_id_action:fav_unfav", params: ["id"]}
when action in ~w(fav_status unfav_status)a
)
plug(
RateLimiter,
{:relations_id_action, params: ["id", "uri"]} when action in @rate_limited_relations_actions
)
plug(RateLimiter, :relations_actions when action in @rate_limited_relations_actions)
plug(RateLimiter, :statuses_actions when action in @rate_limited_status_actions)
plug(RateLimiter, :app_account_creation when action == :account_register)
plug(RateLimiter, :search when action in [:search, :search2, :account_search])
plug(RateLimiter, :password_reset when action == :password_reset)
plug(RateLimiter, :account_confirmation_resend when action == :account_confirmation_resend)
@local_mastodon_name "Mastodon-Local"
action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
def create_app(conn, params) do
scopes = Scopes.fetch_scopes(params, ["read"])
app_attrs =
params
|> Map.drop(["scope", "scopes"])
|> Map.put("scopes", scopes)
with cs <- App.register_changeset(%App{}, app_attrs),
false <- cs.changes[:client_name] == @local_mastodon_name,
{:ok, app} <- Repo.insert(cs) do
conn
|> put_view(AppView)
|> render("show.json", %{app: app})
end
end
defp add_if_present(
map,
params,
params_field,
map_field,
value_function \\ fn x -> {:ok, x} end
) do
if Map.has_key?(params, params_field) do
case value_function.(params[params_field]) do
{:ok, new_value} -> Map.put(map, map_field, new_value)
:error -> map
end
else
map
end
end
def update_credentials(%{assigns: %{user: user}} = conn, params) do
original_user = user
user_params =
%{}
|> add_if_present(params, "display_name", :name)
|> add_if_present(params, "note", :bio, fn value -> {:ok, User.parse_bio(value, user)} end)
|> add_if_present(params, "avatar", :avatar, fn value ->
with %Plug.Upload{} <- value,
{:ok, object} <- ActivityPub.upload(value, type: :avatar) do
{:ok, object.data}
else
_ -> :error
end
end)
emojis_text = (user_params["display_name"] || "") <> (user_params["note"] || "")
user_info_emojis =
user.info
|> Map.get(:emoji, [])
|> Enum.concat(Formatter.get_emoji_map(emojis_text))
|> Enum.dedup()
info_params =
[
:no_rich_text,
:locked,
:hide_followers,
:hide_follows,
:hide_favorites,
:show_role,
:skip_thread_containment
]
|> Enum.reduce(%{}, fn key, acc ->
add_if_present(acc, params, to_string(key), key, fn value ->
{:ok, ControllerHelper.truthy_param?(value)}
end)
end)
|> add_if_present(params, "default_scope", :default_scope)
|> add_if_present(params, "fields", :fields, fn fields ->
fields = Enum.map(fields, fn f -> Map.update!(f, "value", &AutoLinker.link(&1)) end)
{:ok, fields}
end)
|> add_if_present(params, "fields", :raw_fields)
|> add_if_present(params, "pleroma_settings_store", :pleroma_settings_store, fn value ->
{:ok, Map.merge(user.info.pleroma_settings_store, value)}
end)
|> add_if_present(params, "header", :banner, fn value ->
with %Plug.Upload{} <- value,
{:ok, object} <- ActivityPub.upload(value, type: :banner) do
{:ok, object.data}
else
_ -> :error
end
end)
|> add_if_present(params, "pleroma_background_image", :background, fn value ->
with %Plug.Upload{} <- value,
{:ok, object} <- ActivityPub.upload(value, type: :background) do
{:ok, object.data}
else
_ -> :error
end
end)
|> Map.put(:emoji, user_info_emojis)
info_cng = User.Info.profile_update(user.info, info_params)
with changeset <- User.update_changeset(user, user_params),
changeset <- Changeset.put_embed(changeset, :info, info_cng),
{:ok, user} <- User.update_and_set_cache(changeset) do
if original_user != user do
CommonAPI.update(user)
end
json(
conn,
AccountView.render("account.json", %{user: user, for: user, with_pleroma_settings: true})
)
else
_e -> render_error(conn, :forbidden, "Invalid request")
end
end
def update_avatar(%{assigns: %{user: user}} = conn, %{"img" => ""}) do
change = Changeset.change(user, %{avatar: nil})
{:ok, user} = User.update_and_set_cache(change)
CommonAPI.update(user)
json(conn, %{url: nil})
end
def update_avatar(%{assigns: %{user: user}} = conn, params) do
{:ok, object} = ActivityPub.upload(params, type: :avatar)
change = Changeset.change(user, %{avatar: object.data})
{:ok, user} = User.update_and_set_cache(change)
CommonAPI.update(user)
%{"url" => [%{"href" => href} | _]} = object.data
json(conn, %{url: href})
end
def update_banner(%{assigns: %{user: user}} = conn, %{"banner" => ""}) do
with new_info <- %{"banner" => %{}},
info_cng <- User.Info.profile_update(user.info, new_info),
changeset <- Changeset.change(user) |> Changeset.put_embed(:info, info_cng),
{:ok, user} <- User.update_and_set_cache(changeset) do
CommonAPI.update(user)
json(conn, %{url: nil})
end
end
def update_banner(%{assigns: %{user: user}} = conn, params) do
with {:ok, object} <- ActivityPub.upload(%{"img" => params["banner"]}, type: :banner),
new_info <- %{"banner" => object.data},
info_cng <- User.Info.profile_update(user.info, new_info),
changeset <- Changeset.change(user) |> Changeset.put_embed(:info, info_cng),
{:ok, user} <- User.update_and_set_cache(changeset) do
CommonAPI.update(user)
%{"url" => [%{"href" => href} | _]} = object.data
json(conn, %{url: href})
end
end
def update_background(%{assigns: %{user: user}} = conn, %{"img" => ""}) do
with new_info <- %{"background" => %{}},
info_cng <- User.Info.profile_update(user.info, new_info),
changeset <- Changeset.change(user) |> Changeset.put_embed(:info, info_cng),
{:ok, _user} <- User.update_and_set_cache(changeset) do
json(conn, %{url: nil})
end
end
def update_background(%{assigns: %{user: user}} = conn, params) do
with {:ok, object} <- ActivityPub.upload(params, type: :background),
new_info <- %{"background" => object.data},
info_cng <- User.Info.profile_update(user.info, new_info),
changeset <- Changeset.change(user) |> Changeset.put_embed(:info, info_cng),
{:ok, _user} <- User.update_and_set_cache(changeset) do
%{"url" => [%{"href" => href} | _]} = object.data
json(conn, %{url: href})
end
end
def verify_credentials(%{assigns: %{user: user}} = conn, _) do
chat_token = Phoenix.Token.sign(conn, "user socket", user.id)
account =
AccountView.render("account.json", %{
user: user,
for: user,
with_pleroma_settings: true,
with_chat_token: chat_token
})
json(conn, account)
end
def verify_app_credentials(%{assigns: %{user: _user, token: token}} = conn, _) do
with %Token{app: %App{} = app} <- Repo.preload(token, :app) do
conn
|> put_view(AppView)
|> render("short.json", %{app: app})
end
end
def user(%{assigns: %{user: for_user}} = conn, %{"id" => nickname_or_id}) do
with %User{} = user <- User.get_cached_by_nickname_or_id(nickname_or_id, for: for_user),
true <- User.auth_active?(user) || user.id == for_user.id || User.superuser?(for_user) do
account = AccountView.render("account.json", %{user: user, for: for_user})
json(conn, account)
else
_e -> render_error(conn, :not_found, "Can't find user")
end
end
@mastodon_api_level "2.7.2"
def masto_instance(conn, _params) do
instance = Config.get(:instance)
response = %{
uri: Web.base_url(),
title: Keyword.get(instance, :name),
description: Keyword.get(instance, :description),
version: "#{@mastodon_api_level} (compatible; #{Pleroma.Application.named_version()})",
email: Keyword.get(instance, :email),
urls: %{
streaming_api: Pleroma.Web.Endpoint.websocket_url()
},
stats: Stats.get_stats(),
thumbnail: Web.base_url() <> "/instance/thumbnail.jpeg",
languages: ["en"],
registrations: Pleroma.Config.get([:instance, :registrations_open]),
# Extra (not present in Mastodon):
max_toot_chars: Keyword.get(instance, :limit),
poll_limits: Keyword.get(instance, :poll_limits)
}
json(conn, response)
end
def peers(conn, _params) do
json(conn, Stats.get_peers())
end
defp mastodonized_emoji do
Pleroma.Emoji.get_all()
|> Enum.map(fn {shortcode, relative_url, tags} ->
url = to_string(URI.merge(Web.base_url(), relative_url))
%{
"shortcode" => shortcode,
"static_url" => url,
"visible_in_picker" => true,
"url" => url,
"tags" => tags,
# Assuming that a comma is authorized in the category name
"category" => (tags -- ["Custom"]) |> Enum.join(",")
}
end)
end
def custom_emojis(conn, _params) do
mastodon_emoji = mastodonized_emoji()
json(conn, mastodon_emoji)
end
def home_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", ["Create", "Announce"])
|> Map.put("blocking_user", user)
|> Map.put("muting_user", user)
|> Map.put("user", user)
activities =
[user.ap_id | user.following]
|> ActivityPub.fetch_activities(params)
|> Enum.reverse()
conn
|> add_link_headers(:home_timeline, activities)
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def public_timeline(%{assigns: %{user: user}} = conn, params) do
local_only = params["local"] in [true, "True", "true", "1"]
activities =
params
|> Map.put("type", ["Create", "Announce"])
|> Map.put("local_only", local_only)
|> Map.put("blocking_user", user)
|> Map.put("muting_user", user)
|> Map.put("user", user)
|> ActivityPub.fetch_public_activities()
|> Enum.reverse()
conn
|> add_link_headers(:public_timeline, activities, false, %{"local" => local_only})
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def user_statuses(%{assigns: %{user: reading_user}} = conn, params) do
with %User{} = user <- User.get_cached_by_nickname_or_id(params["id"], for: reading_user) do
params =
params
|> Map.put("tag", params["tagged"])
activities = ActivityPub.fetch_user_activities(user, reading_user, params)
conn
|> add_link_headers(:user_statuses, activities, params["id"])
|> put_view(StatusView)
|> render("index.json", %{
activities: activities,
for: reading_user,
as: :activity
})
end
end
def dm_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", "Create")
|> Map.put("blocking_user", user)
|> Map.put("user", user)
|> Map.put(:visibility, "direct")
activities =
[user.ap_id]
|> ActivityPub.fetch_activities_query(params)
|> Pagination.fetch_paginated(params)
conn
|> add_link_headers(:dm_timeline, activities)
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def get_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
true <- Visibility.visible_for_user?(activity, user) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user})
end
end
def get_context(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Activity{} = activity <- Activity.get_by_id(id),
activities <-
ActivityPub.fetch_activities_for_context(activity.data["context"], %{
"blocking_user" => user,
"user" => user,
"exclude_id" => activity.id
}),
grouped_activities <- Enum.group_by(activities, fn %{id: id} -> id < activity.id end) do
result = %{
ancestors:
StatusView.render(
"index.json",
for: user,
activities: grouped_activities[true] || [],
as: :activity
)
|> Enum.reverse(),
# credo:disable-for-previous-line Credo.Check.Refactor.PipeChainStart
descendants:
StatusView.render(
"index.json",
for: user,
activities: grouped_activities[false] || [],
as: :activity
)
|> Enum.reverse()
# credo:disable-for-previous-line Credo.Check.Refactor.PipeChainStart
}
json(conn, result)
end
end
def get_poll(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Object{} = object <- Object.get_by_id(id),
%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
true <- Visibility.visible_for_user?(activity, user) do
conn
|> put_view(StatusView)
|> try_render("poll.json", %{object: object, for: user})
else
error when is_nil(error) or error == false ->
render_error(conn, :not_found, "Record not found")
end
end
defp get_cached_vote_or_vote(user, object, choices) do
idempotency_key = "polls:#{user.id}:#{object.data["id"]}"
{_, res} =
Cachex.fetch(:idempotency_cache, idempotency_key, fn _ ->
case CommonAPI.vote(user, object, choices) do
{:error, _message} = res -> {:ignore, res}
res -> {:commit, res}
end
end)
res
end
def poll_vote(%{assigns: %{user: user}} = conn, %{"id" => id, "choices" => choices}) do
with %Object{} = object <- Object.get_by_id(id),
true <- object.data["type"] == "Question",
%Activity{} = activity <- Activity.get_create_by_object_ap_id(object.data["id"]),
true <- Visibility.visible_for_user?(activity, user),
{:ok, _activities, object} <- get_cached_vote_or_vote(user, object, choices) do
conn
|> put_view(StatusView)
|> try_render("poll.json", %{object: object, for: user})
else
nil ->
render_error(conn, :not_found, "Record not found")
false ->
render_error(conn, :not_found, "Record not found")
{:error, message} ->
conn
|> put_status(:unprocessable_entity)
|> json(%{error: message})
end
end
def scheduled_statuses(%{assigns: %{user: user}} = conn, params) do
with scheduled_activities <- MastodonAPI.get_scheduled_activities(user, params) do
conn
|> add_link_headers(:scheduled_statuses, scheduled_activities)
|> put_view(ScheduledActivityView)
|> render("index.json", %{scheduled_activities: scheduled_activities})
end
end
def show_scheduled_status(%{assigns: %{user: user}} = conn, %{"id" => scheduled_activity_id}) do
with %ScheduledActivity{} = scheduled_activity <-
ScheduledActivity.get(user, scheduled_activity_id) do
conn
|> put_view(ScheduledActivityView)
|> render("show.json", %{scheduled_activity: scheduled_activity})
else
_ -> {:error, :not_found}
end
end
def update_scheduled_status(
%{assigns: %{user: user}} = conn,
%{"id" => scheduled_activity_id} = params
) do
with %ScheduledActivity{} = scheduled_activity <-
ScheduledActivity.get(user, scheduled_activity_id),
{:ok, scheduled_activity} <- ScheduledActivity.update(scheduled_activity, params) do
conn
|> put_view(ScheduledActivityView)
|> render("show.json", %{scheduled_activity: scheduled_activity})
else
nil -> {:error, :not_found}
error -> error
end
end
def delete_scheduled_status(%{assigns: %{user: user}} = conn, %{"id" => scheduled_activity_id}) do
with %ScheduledActivity{} = scheduled_activity <-
ScheduledActivity.get(user, scheduled_activity_id),
{:ok, scheduled_activity} <- ScheduledActivity.delete(scheduled_activity) do
conn
|> put_view(ScheduledActivityView)
|> render("show.json", %{scheduled_activity: scheduled_activity})
else
nil -> {:error, :not_found}
error -> error
end
end
def post_status(%{assigns: %{user: user}} = conn, %{"status" => _} = params) do
params =
params
|> Map.put("in_reply_to_status_id", params["in_reply_to_id"])
scheduled_at = params["scheduled_at"]
if scheduled_at && ScheduledActivity.far_enough?(scheduled_at) do
with {:ok, scheduled_activity} <-
ScheduledActivity.create(user, %{"params" => params, "scheduled_at" => scheduled_at}) do
conn
|> put_view(ScheduledActivityView)
|> render("show.json", %{scheduled_activity: scheduled_activity})
end
else
params = Map.drop(params, ["scheduled_at"])
case CommonAPI.post(user, params) do
{:error, message} ->
conn
|> put_status(:unprocessable_entity)
|> json(%{error: message})
{:ok, activity} ->
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
end
def delete_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {:ok, %Activity{}} <- CommonAPI.delete(id, user) do
json(conn, %{})
else
_e -> render_error(conn, :forbidden, "Can't delete this post")
end
end
def reblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, announce, _activity} <- CommonAPI.repeat(ap_id_or_id, user),
%Activity{} = announce <- Activity.normalize(announce.data) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: announce, for: user, as: :activity})
end
end
def unreblog_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, _unannounce, %{data: %{"id" => id}}} <- CommonAPI.unrepeat(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_by_object_ap_id_with_object(id) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def fav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, _fav, %{data: %{"id" => id}}} <- CommonAPI.favorite(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def unfav_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, _, _, %{data: %{"id" => id}}} <- CommonAPI.unfavorite(ap_id_or_id, user),
%Activity{} = activity <- Activity.get_create_by_object_ap_id(id) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def pin_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, activity} <- CommonAPI.pin(ap_id_or_id, user) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def unpin_status(%{assigns: %{user: user}} = conn, %{"id" => ap_id_or_id}) do
with {:ok, activity} <- CommonAPI.unpin(ap_id_or_id, user) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def bookmark_status(%{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
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def unbookmark_status(%{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
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def mute_conversation(%{assigns: %{user: user}} = conn, %{"id" => id}) do
activity = Activity.get_by_id(id)
with {:ok, activity} <- CommonAPI.add_mute(user, activity) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def unmute_conversation(%{assigns: %{user: user}} = conn, %{"id" => id}) do
activity = Activity.get_by_id(id)
with {:ok, activity} <- CommonAPI.remove_mute(user, activity) do
conn
|> put_view(StatusView)
|> try_render("status.json", %{activity: activity, for: user, as: :activity})
end
end
def notifications(%{assigns: %{user: user}} = conn, params) do
notifications = MastodonAPI.get_notifications(user, params)
conn
|> add_link_headers(:notifications, notifications)
|> put_view(NotificationView)
|> render("index.json", %{notifications: notifications, for: user})
end
def get_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
with {:ok, notification} <- Notification.get(user, id) do
conn
|> put_view(NotificationView)
|> render("show.json", %{notification: notification, for: user})
else
{:error, reason} ->
conn
|> put_status(:forbidden)
|> json(%{"error" => reason})
end
end
def clear_notifications(%{assigns: %{user: user}} = conn, _params) do
Notification.clear(user)
json(conn, %{})
end
def dismiss_notification(%{assigns: %{user: user}} = conn, %{"id" => id} = _params) do
with {:ok, _notif} <- Notification.dismiss(user, id) do
json(conn, %{})
else
{:error, reason} ->
conn
|> put_status(:forbidden)
|> json(%{"error" => reason})
end
end
def destroy_multiple(%{assigns: %{user: user}} = conn, %{"ids" => ids} = _params) do
Notification.destroy_multiple(user, ids)
json(conn, %{})
end
def relationships(%{assigns: %{user: user}} = conn, %{"id" => id}) do
id = List.wrap(id)
q = from(u in User, where: u.id in ^id)
targets = Repo.all(q)
conn
|> put_view(AccountView)
|> render("relationships.json", %{user: user, targets: targets})
end
# Instead of returning a 400 when no "id" params is present, Mastodon returns an empty array.
def relationships(%{assigns: %{user: _user}} = conn, _), do: json(conn, [])
def update_media(%{assigns: %{user: user}} = conn, data) do
with %Object{} = object <- Repo.get(Object, data["id"]),
true <- Object.authorize_mutation(object, user),
true <- is_binary(data["description"]),
description <- data["description"] do
new_data = %{object.data | "name" => description}
{:ok, _} =
object
|> Object.change(%{data: new_data})
|> Repo.update()
attachment_data = Map.put(new_data, "id", object.id)
conn
|> put_view(StatusView)
|> render("attachment.json", %{attachment: attachment_data})
end
end
def upload(%{assigns: %{user: user}} = conn, %{"file" => file} = data) do
with {:ok, object} <-
ActivityPub.upload(
file,
actor: User.ap_id(user),
description: Map.get(data, "description")
) do
attachment_data = Map.put(object.data, "id", object.id)
conn
|> put_view(StatusView)
|> render("attachment.json", %{attachment: attachment_data})
end
end
def set_mascot(%{assigns: %{user: user}} = conn, %{"file" => file}) do
with {:ok, object} <- ActivityPub.upload(file, actor: User.ap_id(user)),
%{} = attachment_data <- Map.put(object.data, "id", object.id),
%{type: type} = rendered <-
StatusView.render("attachment.json", %{attachment: attachment_data}) do
# Reject if not an image
if type == "image" do
# Sure!
# Save to the user's info
info_changeset = User.Info.mascot_update(user.info, rendered)
user_changeset =
user
|> Changeset.change()
|> Changeset.put_embed(:info, info_changeset)
{:ok, _user} = User.update_and_set_cache(user_changeset)
conn
|> json(rendered)
else
render_error(conn, :unsupported_media_type, "mascots can only be images")
end
end
end
def get_mascot(%{assigns: %{user: user}} = conn, _params) do
mascot = User.get_mascot(user)
conn
|> json(mascot)
end
def favourited_by(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
%Object{data: %{"likes" => likes}} <- Object.normalize(activity) do
q = from(u in User, where: u.ap_id in ^likes)
users =
Repo.all(q)
|> Enum.filter(&(not User.blocks?(user, &1)))
conn
|> put_view(AccountView)
|> render("accounts.json", %{for: user, users: users, as: :user})
else
_ -> json(conn, [])
end
end
def reblogged_by(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Activity{} = activity <- Activity.get_by_id_with_object(id),
%Object{data: %{"announcements" => announces}} <- Object.normalize(activity) do
q = from(u in User, where: u.ap_id in ^announces)
users =
Repo.all(q)
|> Enum.filter(&(not User.blocks?(user, &1)))
conn
|> put_view(AccountView)
|> render("accounts.json", %{for: user, users: users, as: :user})
else
_ -> json(conn, [])
end
end
def hashtag_timeline(%{assigns: %{user: user}} = conn, params) do
local_only = params["local"] in [true, "True", "true", "1"]
tags =
[params["tag"], params["any"]]
|> List.flatten()
|> Enum.uniq()
|> Enum.filter(& &1)
|> Enum.map(&String.downcase(&1))
tag_all =
params["all"] ||
[]
|> Enum.map(&String.downcase(&1))
tag_reject =
params["none"] ||
[]
|> Enum.map(&String.downcase(&1))
activities =
params
|> Map.put("type", "Create")
|> Map.put("local_only", local_only)
|> Map.put("blocking_user", user)
|> Map.put("muting_user", user)
|> Map.put("user", user)
|> Map.put("tag", tags)
|> Map.put("tag_all", tag_all)
|> Map.put("tag_reject", tag_reject)
|> ActivityPub.fetch_public_activities()
|> Enum.reverse()
conn
|> add_link_headers(:hashtag_timeline, activities, params["tag"], %{"local" => local_only})
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def followers(%{assigns: %{user: for_user}} = conn, %{"id" => id} = params) do
with %User{} = user <- User.get_cached_by_id(id),
followers <- MastodonAPI.get_followers(user, params) do
followers =
cond do
for_user && user.id == for_user.id -> followers
user.info.hide_followers -> []
true -> followers
end
conn
|> add_link_headers(:followers, followers, user)
|> put_view(AccountView)
|> render("accounts.json", %{for: for_user, users: followers, as: :user})
end
end
def following(%{assigns: %{user: for_user}} = conn, %{"id" => id} = params) do
with %User{} = user <- User.get_cached_by_id(id),
followers <- MastodonAPI.get_friends(user, params) do
followers =
cond do
for_user && user.id == for_user.id -> followers
user.info.hide_follows -> []
true -> followers
end
conn
|> add_link_headers(:following, followers, user)
|> put_view(AccountView)
|> render("accounts.json", %{for: for_user, users: followers, as: :user})
end
end
def follow_requests(%{assigns: %{user: followed}} = conn, _params) do
with {:ok, follow_requests} <- User.get_follow_requests(followed) do
conn
|> put_view(AccountView)
|> render("accounts.json", %{for: followed, users: follow_requests, as: :user})
end
end
def authorize_follow_request(%{assigns: %{user: followed}} = conn, %{"id" => id}) do
with %User{} = follower <- User.get_cached_by_id(id),
{:ok, follower} <- CommonAPI.accept_follow_request(follower, followed) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: followed, target: follower})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def reject_follow_request(%{assigns: %{user: followed}} = conn, %{"id" => id}) do
with %User{} = follower <- User.get_cached_by_id(id),
{:ok, follower} <- CommonAPI.reject_follow_request(follower, followed) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: followed, target: follower})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def follow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
with {_, %User{} = followed} <- {:followed, User.get_cached_by_id(id)},
{_, true} <- {:followed, follower.id != followed.id},
{:ok, follower} <- MastodonAPI.follow(follower, followed, conn.params) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: follower, target: followed})
else
{:followed, _} ->
{:error, :not_found}
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def follow(%{assigns: %{user: follower}} = conn, %{"uri" => uri}) do
with {_, %User{} = followed} <- {:followed, User.get_cached_by_nickname(uri)},
{_, true} <- {:followed, follower.id != followed.id},
{:ok, follower, followed, _} <- CommonAPI.follow(follower, followed) do
conn
|> put_view(AccountView)
|> render("account.json", %{user: followed, for: follower})
else
{:followed, _} ->
{:error, :not_found}
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def unfollow(%{assigns: %{user: follower}} = conn, %{"id" => id}) do
with {_, %User{} = followed} <- {:followed, User.get_cached_by_id(id)},
{_, true} <- {:followed, follower.id != followed.id},
{:ok, follower} <- CommonAPI.unfollow(follower, followed) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: follower, target: followed})
else
{:followed, _} ->
{:error, :not_found}
error ->
error
end
end
def mute(%{assigns: %{user: muter}} = conn, %{"id" => id} = params) do
notifications =
if Map.has_key?(params, "notifications"),
do: params["notifications"] in [true, "True", "true", "1"],
else: true
with %User{} = muted <- User.get_cached_by_id(id),
{:ok, muter} <- User.mute(muter, muted, notifications) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: muter, target: muted})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def unmute(%{assigns: %{user: muter}} = conn, %{"id" => id}) do
with %User{} = muted <- User.get_cached_by_id(id),
{:ok, muter} <- User.unmute(muter, muted) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: muter, target: muted})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def mutes(%{assigns: %{user: user}} = conn, _) do
with muted_accounts <- User.muted_users(user) do
res = AccountView.render("accounts.json", users: muted_accounts, for: user, as: :user)
json(conn, res)
end
end
def block(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
with %User{} = blocked <- User.get_cached_by_id(id),
{:ok, blocker} <- User.block(blocker, blocked),
{:ok, _activity} <- ActivityPub.block(blocker, blocked) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: blocker, target: blocked})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def unblock(%{assigns: %{user: blocker}} = conn, %{"id" => id}) do
with %User{} = blocked <- User.get_cached_by_id(id),
{:ok, blocker} <- User.unblock(blocker, blocked),
{:ok, _activity} <- ActivityPub.unblock(blocker, blocked) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: blocker, target: blocked})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def blocks(%{assigns: %{user: user}} = conn, _) do
with blocked_accounts <- User.blocked_users(user) do
res = AccountView.render("accounts.json", users: blocked_accounts, for: user, as: :user)
json(conn, res)
end
end
def domain_blocks(%{assigns: %{user: %{info: info}}} = conn, _) do
json(conn, info.domain_blocks || [])
end
def block_domain(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
User.block_domain(blocker, domain)
json(conn, %{})
end
def unblock_domain(%{assigns: %{user: blocker}} = conn, %{"domain" => domain}) do
User.unblock_domain(blocker, domain)
json(conn, %{})
end
def subscribe(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %User{} = subscription_target <- User.get_cached_by_id(id),
{:ok, subscription_target} = User.subscribe(user, subscription_target) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: user, target: subscription_target})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def unsubscribe(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %User{} = subscription_target <- User.get_cached_by_id(id),
{:ok, subscription_target} = User.unsubscribe(user, subscription_target) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: user, target: subscription_target})
else
{:error, message} ->
conn
|> put_status(:forbidden)
|> json(%{error: message})
end
end
def favourites(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", "Create")
|> Map.put("favorited_by", user.ap_id)
|> Map.put("blocking_user", user)
activities =
ActivityPub.fetch_activities([], params)
|> Enum.reverse()
conn
|> add_link_headers(:favourites, activities)
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def user_favourites(%{assigns: %{user: for_user}} = conn, %{"id" => id} = params) do
with %User{} = user <- User.get_by_id(id),
false <- user.info.hide_favorites do
params =
params
|> Map.put("type", "Create")
|> Map.put("favorited_by", user.ap_id)
|> Map.put("blocking_user", for_user)
recipients =
if for_user do
[Pleroma.Constants.as_public()] ++ [for_user.ap_id | for_user.following]
else
[Pleroma.Constants.as_public()]
end
activities =
recipients
|> ActivityPub.fetch_activities(params)
|> Enum.reverse()
conn
|> add_link_headers(:favourites, activities)
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: for_user, as: :activity})
else
nil -> {:error, :not_found}
true -> render_error(conn, :forbidden, "Can't get favorites")
end
end
def bookmarks(%{assigns: %{user: user}} = conn, params) do
user = User.get_cached_by_id(user.id)
bookmarks =
Bookmark.for_user_query(user.id)
|> 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, bookmarks)
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
end
def account_lists(%{assigns: %{user: user}} = conn, %{"id" => account_id}) do
lists = Pleroma.List.get_lists_account_belongs(user, account_id)
res = ListView.render("lists.json", lists: lists)
json(conn, res)
end
def list_timeline(%{assigns: %{user: user}} = conn, %{"list_id" => id} = params) do
with %Pleroma.List{title: _title, following: following} <- Pleroma.List.get(id, user) do
params =
params
|> Map.put("type", "Create")
|> Map.put("blocking_user", user)
|> Map.put("user", user)
|> Map.put("muting_user", user)
# we must filter the following list for the user to avoid leaking statuses the user
# does not actually have permission to see (for more info, peruse security issue #270).
activities =
following
|> Enum.filter(fn x -> x in user.following end)
|> ActivityPub.fetch_activities_bounded(following, params)
|> Enum.reverse()
conn
|> put_view(StatusView)
|> render("index.json", %{activities: activities, for: user, as: :activity})
else
_e -> render_error(conn, :forbidden, "Error.")
end
end
def index(%{assigns: %{user: user}} = conn, _params) do
token = get_session(conn, :oauth_token)
if user && token do
mastodon_emoji = mastodonized_emoji()
limit = Config.get([:instance, :limit])
accounts =
Map.put(%{}, user.id, AccountView.render("account.json", %{user: user, for: user}))
initial_state =
%{
meta: %{
streaming_api_base_url: Pleroma.Web.Endpoint.websocket_url(),
access_token: token,
locale: "en",
domain: Pleroma.Web.Endpoint.host(),
admin: "1",
me: "#{user.id}",
unfollow_modal: false,
boost_modal: false,
delete_modal: true,
auto_play_gif: false,
display_sensitive_media: false,
reduce_motion: false,
max_toot_chars: limit,
mascot: User.get_mascot(user)["url"]
},
poll_limits: Config.get([:instance, :poll_limits]),
rights: %{
delete_others_notice: present?(user.info.is_moderator),
admin: present?(user.info.is_admin)
},
compose: %{
me: "#{user.id}",
default_privacy: user.info.default_scope,
default_sensitive: false,
allow_content_types: Config.get([:instance, :allowed_post_formats])
},
media_attachments: %{
accept_content_types: [
".jpg",
".jpeg",
".png",
".gif",
".webm",
".mp4",
".m4v",
"image\/jpeg",
"image\/png",
"image\/gif",
"video\/webm",
"video\/mp4"
]
},
settings:
user.info.settings ||
%{
onboarded: true,
home: %{
shows: %{
reblog: true,
reply: true
}
},
notifications: %{
alerts: %{
follow: true,
favourite: true,
reblog: true,
mention: true
},
shows: %{
follow: true,
favourite: true,
reblog: true,
mention: true
},
sounds: %{
follow: true,
favourite: true,
reblog: true,
mention: true
}
}
},
push_subscription: nil,
accounts: accounts,
custom_emojis: mastodon_emoji,
char_limit: limit
}
|> Jason.encode!()
conn
|> put_layout(false)
|> put_view(MastodonView)
|> render("index.html", %{initial_state: initial_state})
else
conn
|> put_session(:return_to, conn.request_path)
|> redirect(to: "/web/login")
end
end
def put_settings(%{assigns: %{user: user}} = conn, %{"data" => settings} = _params) do
info_cng = User.Info.mastodon_settings_update(user.info, settings)
with changeset <- Changeset.change(user),
changeset <- Changeset.put_embed(changeset, :info, info_cng),
{:ok, _user} <- User.update_and_set_cache(changeset) do
json(conn, %{})
else
e ->
conn
|> put_status(:internal_server_error)
|> json(%{error: inspect(e)})
end
end
def login(%{assigns: %{user: %User{}}} = conn, _params) do
redirect(conn, to: local_mastodon_root_path(conn))
end
@doc "Local Mastodon FE login init action"
def login(conn, %{"code" => auth_token}) do
with {:ok, app} <- get_or_make_app(),
%Authorization{} = auth <- Repo.get_by(Authorization, token: auth_token, app_id: app.id),
{:ok, token} <- Token.exchange_token(app, auth) do
conn
|> put_session(:oauth_token, token.token)
|> redirect(to: local_mastodon_root_path(conn))
end
end
@doc "Local Mastodon FE callback action"
def login(conn, _) do
with {:ok, app} <- get_or_make_app() do
path =
o_auth_path(
conn,
:authorize,
response_type: "code",
client_id: app.client_id,
redirect_uri: ".",
scope: Enum.join(app.scopes, " ")
)
redirect(conn, to: path)
end
end
defp local_mastodon_root_path(conn) do
case get_session(conn, :return_to) do
nil ->
mastodon_api_path(conn, :index, ["getting-started"])
return_to ->
delete_session(conn, :return_to)
return_to
end
end
defp get_or_make_app do
find_attrs = %{client_name: @local_mastodon_name, redirect_uris: "."}
scopes = ["read", "write", "follow", "push"]
with %App{} = app <- Repo.get_by(App, find_attrs) do
{:ok, app} =
if app.scopes == scopes do
{:ok, app}
else
app
|> Changeset.change(%{scopes: scopes})
|> Repo.update()
end
{:ok, app}
else
_e ->
cs =
App.register_changeset(
%App{},
Map.put(find_attrs, :scopes, scopes)
)
Repo.insert(cs)
end
end
def logout(conn, _) do
conn
|> clear_session
|> redirect(to: "/")
end
def relationship_noop(%{assigns: %{user: user}} = conn, %{"id" => id}) do
Logger.debug("Unimplemented, returning unmodified relationship")
with %User{} = target <- User.get_cached_by_id(id) do
conn
|> put_view(AccountView)
|> render("relationship.json", %{user: user, target: target})
end
end
def empty_array(conn, _) do
Logger.debug("Unimplemented, returning an empty array")
json(conn, [])
end
def empty_object(conn, _) do
Logger.debug("Unimplemented, returning an empty object")
json(conn, %{})
end
def get_filters(%{assigns: %{user: user}} = conn, _) do
filters = Filter.get_filters(user)
res = FilterView.render("filters.json", filters: filters)
json(conn, res)
end
def create_filter(
%{assigns: %{user: user}} = conn,
%{"phrase" => phrase, "context" => context} = params
) do
query = %Filter{
user_id: user.id,
phrase: phrase,
context: context,
hide: Map.get(params, "irreversible", false),
whole_word: Map.get(params, "boolean", true)
# expires_at
}
{:ok, response} = Filter.create(query)
res = FilterView.render("filter.json", filter: response)
json(conn, res)
end
def get_filter(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
filter = Filter.get(filter_id, user)
res = FilterView.render("filter.json", filter: filter)
json(conn, res)
end
def update_filter(
%{assigns: %{user: user}} = conn,
%{"phrase" => phrase, "context" => context, "id" => filter_id} = params
) do
query = %Filter{
user_id: user.id,
filter_id: filter_id,
phrase: phrase,
context: context,
hide: Map.get(params, "irreversible", nil),
whole_word: Map.get(params, "boolean", true)
# expires_at
}
{:ok, response} = Filter.update(query)
res = FilterView.render("filter.json", filter: response)
json(conn, res)
end
def delete_filter(%{assigns: %{user: user}} = conn, %{"id" => filter_id}) do
query = %Filter{
user_id: user.id,
filter_id: filter_id
}
{:ok, _} = Filter.delete(query)
json(conn, %{})
end
def suggestions(%{assigns: %{user: user}} = conn, _) do
suggestions = Config.get(:suggestions)
if Keyword.get(suggestions, :enabled, false) do
api = Keyword.get(suggestions, :third_party_engine, "")
timeout = Keyword.get(suggestions, :timeout, 5000)
limit = Keyword.get(suggestions, :limit, 23)
host = Config.get([Pleroma.Web.Endpoint, :url, :host])
user = user.nickname
url =
api
|> String.replace("{{host}}", host)
|> String.replace("{{user}}", user)
with {:ok, %{status: 200, body: body}} <-
HTTP.get(url, [], adapter: [recv_timeout: timeout, pool: :default]),
{:ok, data} <- Jason.decode(body) do
data =
data
|> Enum.slice(0, limit)
|> Enum.map(fn x ->
x
|> Map.put("id", fetch_suggestion_id(x))
|> Map.put("avatar", MediaProxy.url(x["avatar"]))
|> Map.put("avatar_static", MediaProxy.url(x["avatar_static"]))
end)
json(conn, data)
else
e ->
Logger.error("Could not retrieve suggestions at fetch #{url}, #{inspect(e)}")
end
else
json(conn, [])
end
end
defp fetch_suggestion_id(attrs) do
case User.get_or_fetch(attrs["acct"]) do
{:ok, %User{id: id}} -> id
_ -> 0
end
end
def status_card(%{assigns: %{user: user}} = conn, %{"id" => status_id}) do
with %Activity{} = activity <- Activity.get_by_id(status_id),
true <- Visibility.visible_for_user?(activity, user) do
data =
StatusView.render(
"card.json",
Pleroma.Web.RichMedia.Helpers.fetch_data_for_activity(activity)
)
json(conn, data)
else
_e ->
%{}
end
end
def reports(%{assigns: %{user: user}} = conn, params) do
case CommonAPI.report(user, params) do
{:ok, activity} ->
conn
|> put_view(ReportView)
|> try_render("report.json", %{activity: activity})
{:error, err} ->
conn
|> put_status(:bad_request)
|> json(%{error: err})
end
end
def account_register(
%{assigns: %{app: app}} = conn,
%{"username" => nickname, "email" => _, "password" => _, "agreement" => true} = params
) do
params =
params
|> Map.take([
"email",
"captcha_solution",
"captcha_token",
"captcha_answer_data",
"token",
"password"
])
|> Map.put("nickname", nickname)
|> Map.put("fullname", params["fullname"] || nickname)
|> Map.put("bio", params["bio"] || "")
|> Map.put("confirm", params["password"])
with {:ok, user} <- TwitterAPI.register_user(params, need_confirmation: true),
{:ok, token} <- Token.create_token(app, user, %{scopes: app.scopes}) do
json(conn, %{
token_type: "Bearer",
access_token: token.token,
scope: app.scopes,
created_at: Token.Utils.format_created_at(token)
})
else
{:error, errors} ->
conn
|> put_status(:bad_request)
|> json(errors)
end
end
def account_register(%{assigns: %{app: _app}} = conn, _params) do
render_error(conn, :bad_request, "Missing parameters")
end
def account_register(conn, _) do
render_error(conn, :forbidden, "Invalid credentials")
end
def conversations(%{assigns: %{user: user}} = conn, params) do
participations = Participation.for_user_with_last_activity_id(user, params)
conversations =
Enum.map(participations, fn participation ->
ConversationView.render("participation.json", %{participation: participation, for: user})
end)
conn
|> add_link_headers(:conversations, participations)
|> json(conversations)
end
def conversation_read(%{assigns: %{user: user}} = conn, %{"id" => participation_id}) do
with %Participation{} = participation <-
Repo.get_by(Participation, id: participation_id, user_id: user.id),
{:ok, participation} <- Participation.mark_as_read(participation) do
participation_view =
ConversationView.render("participation.json", %{participation: participation, for: user})
conn
|> json(participation_view)
end
end
def password_reset(conn, params) do
nickname_or_email = params["email"] || params["nickname"]
with {:ok, _} <- TwitterAPI.password_reset(nickname_or_email) do
conn
|> put_status(:no_content)
|> json("")
else
{:error, "unknown user"} ->
send_resp(conn, :not_found, "")
{:error, _} ->
send_resp(conn, :bad_request, "")
end
end
def account_confirmation_resend(conn, params) do
nickname_or_email = params["email"] || params["nickname"]
with %User{} = user <- User.get_by_nickname_or_email(nickname_or_email),
{:ok, _} <- User.try_send_confirmation_email(user) do
conn
|> json_response(:no_content, "")
end
end
def try_render(conn, target, params)
when is_binary(target) do
case render(conn, target, params) do
nil -> render_error(conn, :not_implemented, "Can't display this activity")
res -> res
end
end
def try_render(conn, _, _) do
render_error(conn, :not_implemented, "Can't display this activity")
end
defp present?(nil), do: false
defp present?(false), do: false
defp present?(_), do: true
end