defmodule Mobilizon.GraphQL.Resolvers.User do @moduledoc """ Handles the user-related GraphQL calls. """ import Mobilizon.Users.Guards alias Mobilizon.{Actors, Config, Events, Users} alias Mobilizon.Actors.Actor alias Mobilizon.Storage.Repo alias Mobilizon.Users.User alias Mobilizon.Web.{Auth, Email} require Logger @doc """ Find an user by its ID """ def find_user(_parent, %{id: id}, _resolution) do Users.get_user_with_actors(id) end @doc """ Return current logged-in user """ def get_current_user(_parent, _args, %{context: %{current_user: user}}) do {:ok, user} end def get_current_user(_parent, _args, _resolution) do {:error, "You need to be logged-in to view current user"} end @doc """ List instance users """ def list_and_count_users( _parent, %{page: page, limit: limit, sort: sort, direction: direction}, %{context: %{current_user: %User{role: role}}} ) when is_moderator(role) do total = Task.async(&Users.count_users/0) elements = Task.async(fn -> Users.list_users(page, limit, sort, direction) end) {:ok, %{total: Task.await(total), elements: Task.await(elements)}} end def list_and_count_users(_parent, _args, _resolution) do {:error, "You need to have admin access to list users"} end @doc """ Login an user. Returns a token and the user """ def login_user(_parent, %{email: email, password: password}, _resolution) do with {:ok, %User{confirmed_at: %DateTime{}} = user} <- Users.get_user_by_email(email), {:ok, %{access_token: access_token, refresh_token: refresh_token}} <- Users.authenticate(%{user: user, password: password}) do {:ok, %{access_token: access_token, refresh_token: refresh_token, user: user}} else {:ok, %User{confirmed_at: nil} = _user} -> {:error, "User account not confirmed"} {:error, :user_not_found} -> {:error, "No user with this email was found"} {:error, :unauthorized} -> {:error, "Impossible to authenticate, either your email or password are invalid."} end end @doc """ Refresh a token """ def refresh_token(_parent, %{refresh_token: refresh_token}, _context) do with {:ok, user, _claims} <- Auth.Guardian.resource_from_token(refresh_token), {:ok, _old, {exchanged_token, _claims}} <- Auth.Guardian.exchange(refresh_token, ["access", "refresh"], "access"), {:ok, refresh_token} <- Users.generate_refresh_token(user) do {:ok, %{access_token: exchanged_token, refresh_token: refresh_token}} else {:error, message} -> Logger.debug("Cannot refresh user token: #{inspect(message)}") {:error, "Cannot refresh the token"} end end def refresh_token(_parent, _params, _context) do {:error, "You need to have an existing token to get a refresh token"} end @doc """ Register an user: - check registrations are enabled - create the user - send a validation email to the user """ @spec create_user(any, map, any) :: tuple def create_user(_parent, args, _resolution) do with :registration_ok <- check_registration_config(args), {:ok, %User{} = user} <- Users.register(args) do Email.User.send_confirmation_email(user, Map.get(args, :locale, "en")) {:ok, user} else :registration_closed -> {:error, "Registrations are not enabled"} :not_whitelisted -> {:error, "Your email is not on the whitelist"} error -> error end end @spec check_registration_config(map) :: atom defp check_registration_config(%{email: email}) do cond do Config.instance_registrations_open?() -> :registration_ok Config.instance_registrations_whitelist?() -> check_white_listed_email?(email) true -> :registration_closed end end @spec check_white_listed_email?(String.t()) :: :registration_ok | :not_whitelisted defp check_white_listed_email?(email) do [_, domain] = String.split(email, "@", parts: 2, trim: true) if domain in Config.instance_registrations_whitelist() or email in Config.instance_registrations_whitelist(), do: :registration_ok, else: :not_whitelisted end @doc """ Validate an user, get its actor and a token """ def validate_user(_parent, %{token: token}, _resolution) do with {:check_confirmation_token, {:ok, %User{} = user}} <- {:check_confirmation_token, Email.User.check_confirmation_token(token)}, {:get_actor, actor} <- {:get_actor, Users.get_actor_for_user(user)}, {:ok, %{access_token: access_token, refresh_token: refresh_token}} <- Users.generate_tokens(user) do {:ok, %{ access_token: access_token, refresh_token: refresh_token, user: Map.put(user, :default_actor, actor) }} else error -> Logger.info("Unable to validate user with token #{token}") Logger.debug(inspect(error)) {:error, "Unable to validate user"} end end @doc """ Send the confirmation email again. We only do this to accounts unconfirmed """ def resend_confirmation_email(_parent, args, _resolution) do with {:ok, %User{locale: locale} = user} <- Users.get_user_by_email(Map.get(args, :email), false), {:ok, email} <- Email.User.resend_confirmation_email(user, Map.get(args, :locale, locale)) do {:ok, email} else {:error, :user_not_found} -> {:error, "No user to validate with this email was found"} {:error, :email_too_soon} -> {:error, "You requested again a confirmation email too soon"} end end @doc """ Send an email to reset the password from an user """ def send_reset_password(_parent, args, _resolution) do with email <- Map.get(args, :email), {:ok, %User{locale: locale} = user} <- Users.get_user_by_email(email, true), {:ok, %Bamboo.Email{} = _email_html} <- Email.User.send_password_reset_email(user, Map.get(args, :locale, locale)) do {:ok, email} else {:error, :user_not_found} -> # TODO : implement rate limits for this endpoint {:error, "No user with this email was found"} {:error, :email_too_soon} -> {:error, "You requested again a confirmation email too soon"} end end @doc """ Reset the password from an user """ def reset_password(_parent, %{password: password, token: token}, _resolution) do with {:ok, %User{} = user} <- Email.User.check_reset_password_token(password, token), {:ok, %{access_token: access_token, refresh_token: refresh_token}} <- Users.authenticate(%{user: user, password: password}) do {:ok, %{access_token: access_token, refresh_token: refresh_token, user: user}} end end @doc "Change an user default actor" def change_default_actor( _parent, %{preferred_username: username}, %{context: %{current_user: user}} ) do with %Actor{id: actor_id} <- Actors.get_local_actor_by_name(username), {:user_actor, true} <- {:user_actor, actor_id in Enum.map(Users.get_actors_for_user(user), & &1.id)}, %User{} = user <- Users.update_user_default_actor(user.id, actor_id) do {:ok, user} else {:user_actor, _} -> {:error, :actor_not_from_user} _error -> {:error, :unable_to_change_default_actor} end end @doc """ Returns the list of events for all of this user's identities are going to """ def user_participations( %User{id: user_id}, args, %{context: %{current_user: %User{id: logged_user_id}}} ) do with true <- user_id == logged_user_id, participations <- Events.list_participations_for_user( user_id, Map.get(args, :after_datetime), Map.get(args, :before_datetime), Map.get(args, :page), Map.get(args, :limit) ) do {:ok, participations} end end @doc """ Returns the list of draft events for the current user """ def user_drafted_events( %User{id: user_id}, args, %{context: %{current_user: %User{id: logged_user_id}}} ) do with {:same_user, true} <- {:same_user, user_id == logged_user_id}, events <- Events.list_drafts_for_user(user_id, Map.get(args, :page), Map.get(args, :limit)) do {:ok, events} end end def change_password( _parent, %{old_password: old_password, new_password: new_password}, %{context: %{current_user: %User{password_hash: old_password_hash} = user}} ) do with {:current_password, true} <- {:current_password, Argon2.verify_pass(old_password, old_password_hash)}, {:same_password, false} <- {:same_password, old_password == new_password}, {:ok, %User{} = user} <- user |> User.password_change_changeset(%{"password" => new_password}) |> Repo.update() do {:ok, user} else {:current_password, false} -> {:error, "The current password is invalid"} {:same_password, true} -> {:error, "The new password must be different"} {:error, %Ecto.Changeset{errors: [password: {"registration.error.password_too_short", _}]}} -> {:error, "The password you have chosen is too short. Please make sure your password contains at least 6 characters."} end end def change_password(_parent, _args, _resolution) do {:error, "You need to be logged-in to change your password"} end end