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# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.TwitterAPI.Controller do
use Pleroma.Web, :controller
import Pleroma.Web.ControllerHelper, only: [json_response: 3]
alias Pleroma.Web.TwitterAPI.{TwitterAPI, UserView, ActivityView, NotificationView}
alias Pleroma.Web.CommonAPI
alias Pleroma.{Repo, Activity, Object, User, Notification}
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Utils
alias Ecto.Changeset
require Logger
plug(:only_if_public_instance when action in [:public_timeline, :public_and_external_timeline])
action_fallback(:errors)
def verify_credentials(%{assigns: %{user: user}} = conn, _params) do
token = Phoenix.Token.sign(conn, "user socket", user.id)
conn
|> put_view(UserView)
|> render("show.json", %{user: user, token: token})
end
def status_update(%{assigns: %{user: user}} = conn, %{"status" => _} = status_data) do
with media_ids <- extract_media_ids(status_data),
{:ok, activity} <-
TwitterAPI.create_status(user, Map.put(status_data, "media_ids", media_ids)) do
conn
|> json(ActivityView.render("activity.json", activity: activity, for: user))
else
_ -> empty_status_reply(conn)
end
end
def status_update(conn, _status_data) do
empty_status_reply(conn)
end
defp empty_status_reply(conn) do
bad_request_reply(conn, "Client must provide a 'status' parameter with a value.")
end
defp extract_media_ids(status_data) do
with media_ids when not is_nil(media_ids) <- status_data["media_ids"],
split_ids <- String.split(media_ids, ","),
clean_ids <- Enum.reject(split_ids, fn id -> String.length(id) == 0 end) do
clean_ids
else
_e -> []
end
end
def public_and_external_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", ["Create", "Announce"])
|> Map.put("blocking_user", user)
activities = ActivityPub.fetch_public_activities(params)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def public_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", ["Create", "Announce"])
|> Map.put("local_only", true)
|> Map.put("blocking_user", user)
activities = ActivityPub.fetch_public_activities(params)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def friends_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", ["Create", "Announce", "Follow", "Like"])
|> Map.put("blocking_user", user)
|> Map.put("user", user)
activities =
ActivityPub.fetch_activities([user.ap_id | user.following], params)
|> ActivityPub.contain_timeline(user)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def show_user(conn, params) do
for_user = conn.assigns.user
with {:ok, shown} <- TwitterAPI.get_user(params),
true <-
User.auth_active?(shown) ||
(for_user && (for_user.id == shown.id || User.superuser?(for_user))) do
params =
if for_user do
%{user: shown, for: for_user}
else
%{user: shown}
end
conn
|> put_view(UserView)
|> render("show.json", params)
else
{:error, msg} ->
bad_request_reply(conn, msg)
false ->
conn
|> put_status(404)
|> json(%{error: "Unconfirmed user"})
end
end
def user_timeline(%{assigns: %{user: user}} = conn, params) do
case TwitterAPI.get_user(user, params) do
{:ok, target_user} ->
# Twitter and ActivityPub use a different name and sense for this parameter.
{include_rts, params} = Map.pop(params, "include_rts")
params =
case include_rts do
x when x == "false" or x == "0" -> Map.put(params, "exclude_reblogs", "true")
_ -> params
end
activities = ActivityPub.fetch_user_activities(target_user, user, params)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
{:error, msg} ->
bad_request_reply(conn, msg)
end
end
def mentions_timeline(%{assigns: %{user: user}} = conn, params) do
params =
params
|> Map.put("type", ["Create", "Announce", "Follow", "Like"])
|> Map.put("blocking_user", user)
activities = ActivityPub.fetch_activities([user.ap_id], params)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def dm_timeline(%{assigns: %{user: user}} = conn, params) do
query =
ActivityPub.fetch_activities_query(
[user.ap_id],
Map.merge(params, %{"type" => "Create", "user" => user, visibility: "direct"})
)
activities = Repo.all(query)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def notifications(%{assigns: %{user: user}} = conn, params) do
notifications = Notification.for_user(user, params)
conn
|> put_view(NotificationView)
|> render("notification.json", %{notifications: notifications, for: user})
end
def notifications_read(%{assigns: %{user: user}} = conn, %{"latest_id" => latest_id} = params) do
Notification.set_read_up_to(user, latest_id)
notifications = Notification.for_user(user, params)
conn
|> put_view(NotificationView)
|> render("notification.json", %{notifications: notifications, for: user})
end
def notifications_read(%{assigns: %{user: _user}} = conn, _) do
bad_request_reply(conn, "You need to specify latest_id")
end
def follow(%{assigns: %{user: user}} = conn, params) do
case TwitterAPI.follow(user, params) do
{:ok, user, followed, _activity} ->
conn
|> put_view(UserView)
|> render("show.json", %{user: followed, for: user})
{:error, msg} ->
forbidden_json_reply(conn, msg)
end
end
def block(%{assigns: %{user: user}} = conn, params) do
case TwitterAPI.block(user, params) do
{:ok, user, blocked} ->
conn
|> put_view(UserView)
|> render("show.json", %{user: blocked, for: user})
{:error, msg} ->
forbidden_json_reply(conn, msg)
end
end
def unblock(%{assigns: %{user: user}} = conn, params) do
case TwitterAPI.unblock(user, params) do
{:ok, user, blocked} ->
conn
|> put_view(UserView)
|> render("show.json", %{user: blocked, for: user})
{:error, msg} ->
forbidden_json_reply(conn, msg)
end
end
def delete_post(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {:ok, activity} <- TwitterAPI.delete(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def unfollow(%{assigns: %{user: user}} = conn, params) do
case TwitterAPI.unfollow(user, params) do
{:ok, user, unfollowed} ->
conn
|> put_view(UserView)
|> render("show.json", %{user: unfollowed, for: user})
{:error, msg} ->
forbidden_json_reply(conn, msg)
end
end
def fetch_status(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with %Activity{} = activity <- Repo.get(Activity, id),
true <- ActivityPub.visible_for_user?(activity, user) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def fetch_conversation(%{assigns: %{user: user}} = conn, %{"id" => id}) do
id = String.to_integer(id)
with context when is_binary(context) <- TwitterAPI.conversation_id_to_context(id),
activities <-
ActivityPub.fetch_activities_for_context(context, %{
"blocking_user" => user,
"user" => user
}) do
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
end
@doc """
Updates metadata of uploaded media object.
Derived from [Twitter API endpoint](https://developer.twitter.com/en/docs/media/upload-media/api-reference/post-media-metadata-create).
"""
def update_media(%{assigns: %{user: user}} = conn, %{"media_id" => id} = data) do
object = Repo.get(Object, id)
description = get_in(data, ["alt_text", "text"]) || data["name"] || data["description"]
{conn, status, response_body} =
cond do
!object ->
{halt(conn), :not_found, ""}
!Object.authorize_mutation(object, user) ->
{halt(conn), :forbidden, "You can only update your own uploads."}
!is_binary(description) ->
{conn, :not_modified, ""}
true ->
new_data = Map.put(object.data, "name", description)
{:ok, _} =
object
|> Object.change(%{data: new_data})
|> Repo.update()
{conn, :no_content, ""}
end
conn
|> put_status(status)
|> json(response_body)
end
def upload(%{assigns: %{user: user}} = conn, %{"media" => media}) do
response = TwitterAPI.upload(media, user)
conn
|> put_resp_content_type("application/atom+xml")
|> send_resp(200, response)
end
def upload_json(%{assigns: %{user: user}} = conn, %{"media" => media}) do
response = TwitterAPI.upload(media, user, "json")
conn
|> json_reply(200, response)
end
def get_by_id_or_ap_id(id) do
activity = Repo.get(Activity, id) || Activity.get_create_activity_by_object_ap_id(id)
if activity.data["type"] == "Create" do
activity
else
Activity.get_create_activity_by_object_ap_id(activity.data["object"])
end
end
def favorite(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.fav(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def unfavorite(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.unfav(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def retweet(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.repeat(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def unretweet(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.unrepeat(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
end
end
def pin(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.pin(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
else
{:error, message} -> bad_request_reply(conn, message)
err -> err
end
end
def unpin(%{assigns: %{user: user}} = conn, %{"id" => id}) do
with {_, {:ok, id}} <- {:param_cast, Ecto.Type.cast(:integer, id)},
{:ok, activity} <- TwitterAPI.unpin(user, id) do
conn
|> put_view(ActivityView)
|> render("activity.json", %{activity: activity, for: user})
else
{:error, message} -> bad_request_reply(conn, message)
err -> err
end
end
def register(conn, params) do
with {:ok, user} <- TwitterAPI.register_user(params) do
conn
|> put_view(UserView)
|> render("show.json", %{user: user})
else
{:error, errors} ->
conn
|> json_reply(400, Jason.encode!(errors))
end
end
def password_reset(conn, params) do
nickname_or_email = params["email"] || params["nickname"]
with {:ok, _} <- TwitterAPI.password_reset(nickname_or_email) do
json_response(conn, :no_content, "")
end
end
def confirm_email(conn, %{"user_id" => uid, "token" => token}) do
with %User{} = user <- Repo.get(User, uid),
true <- user.local,
true <- user.info.confirmation_pending,
true <- user.info.confirmation_token == token,
info_change <- User.Info.confirmation_changeset(user.info, :confirmed),
changeset <- Changeset.change(user) |> Changeset.put_embed(:info, info_change),
{:ok, _} <- User.update_and_set_cache(changeset) do
conn
|> redirect(to: "/")
end
end
def resend_confirmation_email(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 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)
conn
|> put_view(UserView)
|> render("show.json", %{user: user, for: user})
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 <- Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_cng),
{:ok, user} <- User.update_and_set_cache(changeset) do
CommonAPI.update(user)
%{"url" => [%{"href" => href} | _]} = object.data
response = %{url: href} |> Jason.encode!()
conn
|> json_reply(200, response)
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 <- Ecto.Changeset.change(user) |> Ecto.Changeset.put_embed(:info, info_cng),
{:ok, _user} <- User.update_and_set_cache(changeset) do
%{"url" => [%{"href" => href} | _]} = object.data
response = %{url: href} |> Jason.encode!()
conn
|> json_reply(200, response)
end
end
def external_profile(%{assigns: %{user: current_user}} = conn, %{"profileurl" => uri}) do
with {:ok, user_map} <- TwitterAPI.get_external_profile(current_user, uri),
response <- Jason.encode!(user_map) do
conn
|> json_reply(200, response)
else
_e ->
conn
|> put_status(404)
|> json(%{error: "Can't find user"})
end
end
def followers(%{assigns: %{user: for_user}} = conn, params) do
{:ok, page} = Ecto.Type.cast(:integer, params["page"] || 1)
with {:ok, user} <- TwitterAPI.get_user(for_user, params),
{:ok, followers} <- User.get_followers(user, page) do
followers =
cond do
for_user && user.id == for_user.id -> followers
user.info.hide_network -> []
true -> followers
end
conn
|> put_view(UserView)
|> render("index.json", %{users: followers, for: conn.assigns[:user]})
else
_e -> bad_request_reply(conn, "Can't get followers")
end
end
def friends(%{assigns: %{user: for_user}} = conn, params) do
{:ok, page} = Ecto.Type.cast(:integer, params["page"] || 1)
with {:ok, user} <- TwitterAPI.get_user(conn.assigns[:user], params),
{:ok, friends} <- User.get_friends(user, page) do
friends =
cond do
for_user && user.id == for_user.id -> friends
user.info.hide_network -> []
true -> friends
end
conn
|> put_view(UserView)
|> render("index.json", %{users: friends, for: conn.assigns[:user]})
else
_e -> bad_request_reply(conn, "Can't get friends")
end
end
def blocks(%{assigns: %{user: user}} = conn, _params) do
with blocked_users <- User.blocked_users(user) do
conn
|> put_view(UserView)
|> render("index.json", %{users: blocked_users, for: user})
end
end
def friend_requests(conn, params) do
with {:ok, user} <- TwitterAPI.get_user(conn.assigns[:user], params),
{:ok, friend_requests} <- User.get_follow_requests(user) do
conn
|> put_view(UserView)
|> render("index.json", %{users: friend_requests, for: conn.assigns[:user]})
else
_e -> bad_request_reply(conn, "Can't get friend requests")
end
end
def approve_friend_request(conn, %{"user_id" => uid} = _params) do
with followed <- conn.assigns[:user],
uid when is_number(uid) <- String.to_integer(uid),
%User{} = follower <- Repo.get(User, uid),
{:ok, follower} <- User.maybe_follow(follower, followed),
%Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
{:ok, follow_activity} <- Utils.update_follow_state(follow_activity, "accept"),
{:ok, _activity} <-
ActivityPub.accept(%{
to: [follower.ap_id],
actor: followed.ap_id,
object: follow_activity.data["id"],
type: "Accept"
}) do
conn
|> put_view(UserView)
|> render("show.json", %{user: follower, for: followed})
else
e -> bad_request_reply(conn, "Can't approve user: #{inspect(e)}")
end
end
def deny_friend_request(conn, %{"user_id" => uid} = _params) do
with followed <- conn.assigns[:user],
uid when is_number(uid) <- String.to_integer(uid),
%User{} = follower <- Repo.get(User, uid),
%Activity{} = follow_activity <- Utils.fetch_latest_follow(follower, followed),
{:ok, follow_activity} <- Utils.update_follow_state(follow_activity, "reject"),
{:ok, _activity} <-
ActivityPub.reject(%{
to: [follower.ap_id],
actor: followed.ap_id,
object: follow_activity.data["id"],
type: "Reject"
}) do
conn
|> put_view(UserView)
|> render("show.json", %{user: follower, for: followed})
else
e -> bad_request_reply(conn, "Can't deny user: #{inspect(e)}")
end
end
def friends_ids(%{assigns: %{user: user}} = conn, _params) do
with {:ok, friends} <- User.get_friends(user) do
ids =
friends
|> Enum.map(fn x -> x.id end)
|> Jason.encode!()
json(conn, ids)
else
_e -> bad_request_reply(conn, "Can't get friends")
end
end
def empty_array(conn, _params) do
json(conn, Jason.encode!([]))
end
def raw_empty_array(conn, _params) do
json(conn, [])
end
defp build_info_cng(user, params) do
info_params =
["no_rich_text", "locked", "hide_network"]
|> Enum.reduce(%{}, fn key, res ->
if value = params[key] do
Map.put(res, key, value == "true")
else
res
end
end)
info_params =
if value = params["default_scope"] do
Map.put(info_params, "default_scope", value)
else
info_params
end
User.Info.profile_update(user.info, info_params)
end
defp parse_profile_bio(user, params) do
if bio = params["description"] do
Map.put(params, "bio", User.parse_bio(bio, user))
else
params
end
end
def update_profile(%{assigns: %{user: user}} = conn, params) do
params = parse_profile_bio(user, params)
info_cng = build_info_cng(user, params)
with changeset <- User.update_changeset(user, params),
changeset <- Ecto.Changeset.put_embed(changeset, :info, info_cng),
{:ok, user} <- User.update_and_set_cache(changeset) do
CommonAPI.update(user)
conn
|> put_view(UserView)
|> render("user.json", %{user: user, for: user})
else
error ->
Logger.debug("Can't update user: #{inspect(error)}")
bad_request_reply(conn, "Can't update user")
end
end
def search(%{assigns: %{user: user}} = conn, %{"q" => _query} = params) do
activities = TwitterAPI.search(user, params)
conn
|> put_view(ActivityView)
|> render("index.json", %{activities: activities, for: user})
end
def search_user(%{assigns: %{user: user}} = conn, %{"query" => query}) do
users = User.search(query, true, user)
conn
|> put_view(UserView)
|> render("index.json", %{users: users, for: user})
end
defp bad_request_reply(conn, error_message) do
json = error_json(conn, error_message)
json_reply(conn, 400, json)
end
defp json_reply(conn, status, json) do
conn
|> put_resp_content_type("application/json")
|> send_resp(status, json)
end
defp forbidden_json_reply(conn, error_message) do
json = error_json(conn, error_message)
json_reply(conn, 403, json)
end
def only_if_public_instance(%{assigns: %{user: %User{}}} = conn, _), do: conn
def only_if_public_instance(conn, _) do
if Keyword.get(Application.get_env(:pleroma, :instance), :public) do
conn
else
conn
|> forbidden_json_reply("Invalid credentials.")
|> halt()
end
end
defp error_json(conn, error_message) do
%{"error" => error_message, "request" => conn.request_path} |> Jason.encode!()
end
def errors(conn, {:param_cast, _}) do
conn
|> put_status(400)
|> json("Invalid parameters")
end
def errors(conn, _) do
conn
|> put_status(500)
|> json("Something went wrong")
end
end

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twitter_api_controller.ex (21 KB)

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