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

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# Pleroma: A lightweight social networking server
# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.MastodonAPI.AccountController do
use Pleroma.Web, :controller
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import Pleroma.Web.ControllerHelper,
only: [
add_link_headers: 2,
truthy_param?: 1,
assign_account_by_id: 2,
embed_relationships?: 1,
json_response: 3
]
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alias Pleroma.Maps
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alias Pleroma.User
alias Pleroma.Web.ActivityPub.ActivityPub
alias Pleroma.Web.ActivityPub.Builder
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alias Pleroma.Web.ActivityPub.Pipeline
alias Pleroma.Web.CommonAPI
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alias Pleroma.Web.MastodonAPI.ListView
alias Pleroma.Web.MastodonAPI.MastodonAPI
alias Pleroma.Web.MastodonAPI.MastodonAPIController
alias Pleroma.Web.MastodonAPI.StatusView
alias Pleroma.Web.OAuth.OAuthController
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alias Pleroma.Web.Plugs.EnsurePublicOrAuthenticatedPlug
alias Pleroma.Web.Plugs.OAuthScopesPlug
alias Pleroma.Web.Plugs.RateLimiter
alias Pleroma.Web.TwitterAPI.TwitterAPI
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plug(Pleroma.Web.ApiSpec.CastAndValidate)
plug(:skip_plug, [OAuthScopesPlug, EnsurePublicOrAuthenticatedPlug] when action == :create)
plug(:skip_plug, EnsurePublicOrAuthenticatedPlug when action in [:show, :statuses])
plug(
OAuthScopesPlug,
%{fallback: :proceed_unauthenticated, scopes: ["read:accounts"]}
when action in [:show, :followers, :following]
)
plug(
OAuthScopesPlug,
%{fallback: :proceed_unauthenticated, scopes: ["read:statuses"]}
when action == :statuses
)
plug(
OAuthScopesPlug,
%{scopes: ["read:accounts"]}
when action in [:verify_credentials, :endorsements, :identity_proofs]
)
plug(OAuthScopesPlug, %{scopes: ["write:accounts"]} when action == :update_credentials)
plug(OAuthScopesPlug, %{scopes: ["read:lists"]} when action == :lists)
plug(
OAuthScopesPlug,
%{scopes: ["follow", "read:blocks"]} when action == :blocks
)
plug(
OAuthScopesPlug,
%{scopes: ["follow", "write:blocks"]} when action in [:block, :unblock]
)
plug(OAuthScopesPlug, %{scopes: ["read:follows"]} when action == :relationships)
plug(
OAuthScopesPlug,
%{scopes: ["follow", "write:follows"]} when action in [:follow_by_uri, :follow, :unfollow]
)
plug(OAuthScopesPlug, %{scopes: ["follow", "read:mutes"]} when action == :mutes)
plug(OAuthScopesPlug, %{scopes: ["follow", "write:mutes"]} when action in [:mute, :unmute])
@relationship_actions [:follow, :unfollow]
@needs_account ~W(followers following lists follow unfollow mute unmute block unblock)a
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plug(
RateLimiter,
[name: :relation_id_action, params: [:id, :uri]] when action in @relationship_actions
)
plug(RateLimiter, [name: :relations_actions] when action in @relationship_actions)
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plug(RateLimiter, [name: :app_account_creation] when action == :create)
plug(:assign_account_by_id when action in @needs_account)
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action_fallback(Pleroma.Web.MastodonAPI.FallbackController)
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defdelegate open_api_operation(action), to: Pleroma.Web.ApiSpec.AccountOperation
@doc "POST /api/v1/accounts"
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def create(%{assigns: %{app: app}, body_params: params} = conn, _params) do
with :ok <- validate_email_param(params),
:ok <- TwitterAPI.validate_captcha(app, params),
{:ok, user} <- TwitterAPI.register_user(params),
{_, {:ok, token}} <-
{:login, OAuthController.login(user, app, app.scopes)} do
OAuthController.after_token_exchange(conn, %{user: user, token: token})
else
{:login, {:account_status, :confirmation_pending}} ->
json_response(conn, :ok, %{
message: "You have been registered. Please check your email for further instructions.",
identifier: "missing_confirmed_email"
})
{:login, {:account_status, :approval_pending}} ->
json_response(conn, :ok, %{
message:
"You have been registered. You'll be able to log in once your account is approved.",
identifier: "awaiting_approval"
})
{:login, _} ->
json_response(conn, :ok, %{
message:
"You have been registered. Some post-registration steps may be pending. " <>
"Please log in manually.",
identifier: "manual_login_required"
})
{:error, error} ->
json_response(conn, :bad_request, %{error: error})
end
end
def create(%{assigns: %{app: _app}} = conn, _) do
render_error(conn, :bad_request, "Missing parameters")
end
def create(conn, _) do
render_error(conn, :forbidden, "Invalid credentials")
end
defp validate_email_param(%{email: email}) when not is_nil(email), do: :ok
defp validate_email_param(_) do
case Pleroma.Config.get([:instance, :account_activation_required]) do
true -> {:error, dgettext("errors", "Missing parameter: %{name}", name: "email")}
_ -> :ok
end
end
@doc "GET /api/v1/accounts/verify_credentials"
def verify_credentials(%{assigns: %{user: user}} = conn, _) do
chat_token = Phoenix.Token.sign(conn, "user socket", user.id)
render(conn, "show.json",
user: user,
for: user,
with_pleroma_settings: true,
with_chat_token: chat_token
)
end
@doc "PATCH /api/v1/accounts/update_credentials"
def update_credentials(%{assigns: %{user: user}, body_params: params} = conn, _params) do
params =
params
|> Enum.filter(fn {_, value} -> not is_nil(value) end)
|> Enum.into(%{})
# We use an empty string as a special value to reset
# avatars, banners, backgrounds
user_image_value = fn
"" -> {:ok, nil}
value -> {:ok, value}
end
user_params =
[
:no_rich_text,
:hide_followers_count,
:hide_follows_count,
:hide_followers,
:hide_follows,
:hide_favorites,
:show_role,
:skip_thread_containment,
:allow_following_move,
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:also_known_as,
:accepts_chat_messages
]
|> Enum.reduce(%{}, fn key, acc ->
Maps.put_if_present(acc, key, params[key], &{:ok, truthy_param?(&1)})
end)
|> Maps.put_if_present(:name, params[:display_name])
|> Maps.put_if_present(:bio, params[:note])
|> Maps.put_if_present(:raw_bio, params[:note])
|> Maps.put_if_present(:avatar, params[:avatar], user_image_value)
|> Maps.put_if_present(:banner, params[:header], user_image_value)
|> Maps.put_if_present(:background, params[:pleroma_background_image], user_image_value)
|> Maps.put_if_present(
:raw_fields,
params[:fields_attributes],
&{:ok, normalize_fields_attributes(&1)}
)
|> Maps.put_if_present(:pleroma_settings_store, params[:pleroma_settings_store])
|> Maps.put_if_present(:default_scope, params[:default_scope])
|> Maps.put_if_present(:default_scope, params["source"]["privacy"])
|> Maps.put_if_present(:actor_type, params[:bot], fn bot ->
if bot, do: {:ok, "Service"}, else: {:ok, "Person"}
end)
|> Maps.put_if_present(:actor_type, params[:actor_type])
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|> Maps.put_if_present(:also_known_as, params[:also_known_as])
# Note: param name is indeed :locked (not an error)
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|> Maps.put_if_present(:is_locked, params[:locked])
# Note: param name is indeed :discoverable (not an error)
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|> Maps.put_if_present(:is_discoverable, params[:discoverable])
# What happens here:
#
# We want to update the user through the pipeline, but the ActivityPub
# update information is not quite enough for this, because this also
# contains local settings that don't federate and don't even appear
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# in the Update activity.
#
# So we first build the normal local changeset, then apply it to the
# user data, but don't persist it. With this, we generate the object
# data for our update activity. We feed this and the changeset as meta
# inforation into the pipeline, where they will be properly updated and
# federated.
with changeset <- User.update_changeset(user, user_params),
{:ok, unpersisted_user} <- Ecto.Changeset.apply_action(changeset, :update),
updated_object <-
Pleroma.Web.ActivityPub.UserView.render("user.json", user: unpersisted_user)
|> Map.delete("@context"),
{:ok, update_data, []} <- Builder.update(user, updated_object),
{:ok, _update, _} <-
Pipeline.common_pipeline(update_data,
local: true,
user_update_changeset: changeset
) do
render(conn, "show.json",
user: unpersisted_user,
for: unpersisted_user,
with_pleroma_settings: true
)
else
_e -> render_error(conn, :forbidden, "Invalid request")
end
end
defp normalize_fields_attributes(fields) do
if Enum.all?(fields, &is_tuple/1) do
Enum.map(fields, fn {_, v} -> v end)
else
Enum.map(fields, fn
%{} = field -> %{"name" => field.name, "value" => field.value}
field -> field
end)
end
end
@doc "GET /api/v1/accounts/relationships"
def relationships(%{assigns: %{user: user}} = conn, %{id: id}) do
targets = User.get_all_by_ids(List.wrap(id))
render(conn, "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, [])
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@doc "GET /api/v1/accounts/:id"
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def show(%{assigns: %{user: for_user}} = conn, %{id: nickname_or_id}) do
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with %User{} = user <- User.get_cached_by_nickname_or_id(nickname_or_id, for: for_user),
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:visible <- User.visible_for(user, for_user) do
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render(conn, "show.json", user: user, for: for_user)
else
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error -> user_visibility_error(conn, error)
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end
end
@doc "GET /api/v1/accounts/:id/statuses"
def statuses(%{assigns: %{user: reading_user}} = conn, params) do
with %User{} = user <- User.get_cached_by_nickname_or_id(params.id, for: reading_user),
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:visible <- User.visible_for(user, reading_user) do
params =
params
|> Map.delete(:tagged)
|> Map.put(:tag, params[:tagged])
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activities = ActivityPub.fetch_user_activities(user, reading_user, params)
conn
|> add_link_headers(activities)
|> put_view(StatusView)
|> render("index.json",
activities: activities,
for: reading_user,
as: :activity,
with_muted: Map.get(params, :with_muted, false)
)
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else
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error -> user_visibility_error(conn, error)
end
end
defp user_visibility_error(conn, error) do
case error do
:restrict_unauthenticated ->
render_error(conn, :unauthorized, "This API requires an authenticated user")
_ ->
render_error(conn, :not_found, "Can't find user")
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end
end
@doc "GET /api/v1/accounts/:id/followers"
def followers(%{assigns: %{user: for_user, account: user}} = conn, params) do
params =
params
|> Enum.map(fn {key, value} -> {to_string(key), value} end)
|> Enum.into(%{})
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followers =
cond do
for_user && user.id == for_user.id -> MastodonAPI.get_followers(user, params)
user.hide_followers -> []
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true -> MastodonAPI.get_followers(user, params)
end
conn
|> add_link_headers(followers)
# https://git.pleroma.social/pleroma/pleroma-fe/-/issues/838#note_59223
|> render("index.json",
for: for_user,
users: followers,
as: :user,
embed_relationships: embed_relationships?(params)
)
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end
@doc "GET /api/v1/accounts/:id/following"
def following(%{assigns: %{user: for_user, account: user}} = conn, params) do
params =
params
|> Enum.map(fn {key, value} -> {to_string(key), value} end)
|> Enum.into(%{})
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followers =
cond do
for_user && user.id == for_user.id -> MastodonAPI.get_friends(user, params)
user.hide_follows -> []
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true -> MastodonAPI.get_friends(user, params)
end
conn
|> add_link_headers(followers)
# https://git.pleroma.social/pleroma/pleroma-fe/-/issues/838#note_59223
|> render("index.json",
for: for_user,
users: followers,
as: :user,
embed_relationships: embed_relationships?(params)
)
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end
@doc "GET /api/v1/accounts/:id/lists"
def lists(%{assigns: %{user: user, account: account}} = conn, _params) do
lists = Pleroma.List.get_lists_account_belongs(user, account)
conn
|> put_view(ListView)
|> render("index.json", lists: lists)
end
@doc "POST /api/v1/accounts/:id/follow"
def follow(%{assigns: %{user: %{id: id}, account: %{id: id}}}, _params) do
{:error, "Can not follow yourself"}
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end
def follow(%{body_params: params, assigns: %{user: follower, account: followed}} = conn, _) do
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with {:ok, follower} <- MastodonAPI.follow(follower, followed, params) do
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render(conn, "relationship.json", user: follower, target: followed)
else
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{:error, message} -> json_response(conn, :forbidden, %{error: message})
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end
end
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@doc "POST /api/v1/accounts/:id/unfollow"
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def unfollow(%{assigns: %{user: %{id: id}, account: %{id: id}}}, _params) do
{:error, "Can not unfollow yourself"}
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end
def unfollow(%{assigns: %{user: follower, account: followed}} = conn, _params) do
with {:ok, follower} <- CommonAPI.unfollow(follower, followed) do
render(conn, "relationship.json", user: follower, target: followed)
end
end
@doc "POST /api/v1/accounts/:id/mute"
def mute(%{assigns: %{user: muter, account: muted}, body_params: params} = conn, _params) do
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with {:ok, _user_relationships} <- User.mute(muter, muted, params) do
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render(conn, "relationship.json", user: muter, target: muted)
else
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{:error, message} -> json_response(conn, :forbidden, %{error: message})
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end
end
@doc "POST /api/v1/accounts/:id/unmute"
def unmute(%{assigns: %{user: muter, account: muted}} = conn, _params) do
with {:ok, _user_relationships} <- User.unmute(muter, muted) do
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render(conn, "relationship.json", user: muter, target: muted)
else
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{:error, message} -> json_response(conn, :forbidden, %{error: message})
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end
end
@doc "POST /api/v1/accounts/:id/block"
def block(%{assigns: %{user: blocker, account: blocked}} = conn, _params) do
with {:ok, _activity} <- CommonAPI.block(blocker, blocked) do
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render(conn, "relationship.json", user: blocker, target: blocked)
else
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{:error, message} -> json_response(conn, :forbidden, %{error: message})
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end
end
@doc "POST /api/v1/accounts/:id/unblock"
def unblock(%{assigns: %{user: blocker, account: blocked}} = conn, _params) do
with {:ok, _activity} <- CommonAPI.unblock(blocker, blocked) do
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render(conn, "relationship.json", user: blocker, target: blocked)
else
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{:error, message} -> json_response(conn, :forbidden, %{error: message})
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end
end
@doc "POST /api/v1/follows"
def follow_by_uri(%{body_params: %{uri: uri}} = conn, _) do
case User.get_cached_by_nickname(uri) do
%User{} = user ->
conn
|> assign(:account, user)
|> follow(%{})
nil ->
{:error, :not_found}
end
end
@doc "GET /api/v1/mutes"
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def mutes(%{assigns: %{user: user}} = conn, params) do
users =
user
|> User.muted_users_relation(_restrict_deactivated = true)
|> Pleroma.Pagination.fetch_paginated(Map.put(params, :skip_order, true))
conn
|> add_link_headers(users)
|> render("index.json", users: users, for: user, as: :user)
end
@doc "GET /api/v1/blocks"
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def blocks(%{assigns: %{user: user}} = conn, params) do
users =
user
|> User.blocked_users_relation(_restrict_deactivated = true)
|> Pleroma.Pagination.fetch_paginated(Map.put(params, :skip_order, true))
conn
|> add_link_headers(users)
|> render("index.json", users: users, for: user, as: :user)
end
@doc "GET /api/v1/endorsements"
def endorsements(conn, params), do: MastodonAPIController.empty_array(conn, params)
@doc "GET /api/v1/identity_proofs"
def identity_proofs(conn, params), do: MastodonAPIController.empty_array(conn, params)
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end