debianize-mobilizon/lib/graphql/resolvers/user.ex

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Elixir
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defmodule Mobilizon.GraphQL.Resolvers.User do
@moduledoc """
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Handles the user-related GraphQL calls.
"""
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import Mobilizon.Users.Guards
alias Mobilizon.{Actors, Admin, Config, Events, Users}
alias Mobilizon.Actors.Actor
alias Mobilizon.Crypto
alias Mobilizon.Federation.ActivityPub
alias Mobilizon.Federation.ActivityPub.Relay
alias Mobilizon.Service.Auth.Authenticator
alias Mobilizon.Storage.{Page, Repo}
alias Mobilizon.Users.{Setting, User}
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alias Mobilizon.Web.{Auth, Email}
import Mobilizon.Web.Gettext
require Logger
@confirmation_token_length 30
@doc """
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Find an user by its ID
"""
def find_user(_parent, %{id: id}, %{context: %{current_user: %User{role: role}}})
when is_moderator(role) do
with {:ok, %User{} = user} <- Users.get_user_with_actors(id) do
{:ok, user}
end
end
@doc """
Return current logged-in user
"""
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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
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@doc """
List instance users
"""
def list_users(
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_parent,
%{email: email, page: page, limit: limit, sort: sort, direction: direction},
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%{context: %{current_user: %User{role: role}}}
)
when is_moderator(role) do
{:ok, Users.list_users(email, page, limit, sort, direction)}
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end
def list_users(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to have admin access to list users")}
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end
@doc """
Login an user. Returns a token and the user
"""
def login_user(_parent, %{email: email, password: password}, %{context: context}) do
with {:ok,
%{
access_token: _access_token,
refresh_token: _refresh_token,
user: %User{} = user
} = user_and_tokens} <- Authenticator.authenticate(email, password),
{:ok, %User{} = user} <- update_user_login_information(user, context),
user_and_tokens <- Map.put(user_and_tokens, :user, user) do
{:ok, user_and_tokens}
else
{:error, :user_not_found} ->
{:error, dgettext("errors", "No user with this email was found")}
{:error, :disabled_user} ->
{:error, dgettext("errors", "This user has been disabled")}
{:error, _error} ->
{:error,
dgettext(
"errors",
"Impossible to authenticate, either your email or password are invalid."
)}
end
end
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@doc """
Refresh a token
"""
def refresh_token(_parent, %{refresh_token: refresh_token}, context) do
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with {:ok, user, _claims} <- Auth.Guardian.resource_from_token(refresh_token),
{:ok, _old, {exchanged_token, _claims}} <-
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Auth.Guardian.exchange(refresh_token, ["access", "refresh"], "access"),
{:ok, refresh_token} <- Authenticator.generate_refresh_token(user),
{:ok, %User{}} <- update_user_login_information(user, context) do
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{:ok, %{access_token: exchanged_token, refresh_token: refresh_token}}
else
{:error, message} ->
Logger.debug("Cannot refresh user token: #{inspect(message)}")
{:error, dgettext("errors", "Cannot refresh the token")}
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end
end
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def refresh_token(_parent, _params, _context) do
{:error, dgettext("errors", "You need to have an existing token to get a refresh token")}
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end
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@doc """
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Register an user:
- check registrations are enabled
- create the user
- send a validation email to the user
"""
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@spec create_user(any, map, any) :: tuple
def create_user(_parent, args, _resolution) do
with :registration_ok <- check_registration_config(args),
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{:ok, %User{} = user} <- Users.register(args) do
Email.User.send_confirmation_email(user, Map.get(args, :locale, "en"))
{:ok, user}
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else
:registration_closed ->
{:error, dgettext("errors", "Registrations are not open")}
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:not_allowlisted ->
{:error, dgettext("errors", "Your email is not on the allowlist")}
{:error, error} ->
{:error, error}
end
end
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@spec check_registration_config(map) :: atom
defp check_registration_config(%{email: email}) do
cond do
Config.instance_registrations_open?() ->
:registration_ok
Config.instance_registrations_allowlist?() ->
check_allow_listed_email?(email)
true ->
:registration_closed
end
end
@spec check_allow_listed_email?(String.t()) :: :registration_ok | :not_allowlisted
defp check_allow_listed_email?(email) do
[_, domain] = String.split(email, "@", parts: 2, trim: true)
if domain in Config.instance_registrations_allowlist() or
email in Config.instance_registrations_allowlist(),
do: :registration_ok,
else: :not_allowlisted
end
@doc """
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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}} <-
Authenticator.generate_tokens(user) do
{:ok,
%{
access_token: access_token,
refresh_token: refresh_token,
user: Map.put(user, :default_actor, actor)
}}
else
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error ->
Logger.info("Unable to validate user with token #{token}")
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Logger.debug(inspect(error))
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{:error, dgettext("errors", "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, dgettext("errors", "No user to validate with this email was found")}
{:error, :email_too_soon} ->
{:error, dgettext("errors", "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),
{:can_reset_password, true} <-
{:can_reset_password, Authenticator.can_reset_password?(user)},
{:ok, %Bamboo.Email{} = _email_html} <-
Email.User.send_password_reset_email(user, Map.get(args, :locale, locale)) do
{:ok, email}
else
{:can_reset_password, false} ->
{:error, dgettext("errors", "This user can't reset their password")}
{:error, :user_not_found} ->
# TODO : implement rate limits for this endpoint
{:error, dgettext("errors", "No user with this email was found")}
{:error, :email_too_soon} ->
{:error, dgettext("errors", "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{email: email} = user} <-
Email.User.check_reset_password_token(password, token),
{:ok, %{access_token: access_token, refresh_token: refresh_token}} <-
Authenticator.authenticate(email, password) do
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{:ok, %{access_token: access_token, refresh_token: refresh_token, user: user}}
end
end
@doc "Change an user default actor"
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def change_default_actor(
_parent,
%{preferred_username: username},
%{context: %{current_user: user}}
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) 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}
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_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
"""
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def user_participations(
%User{id: user_id},
args,
%{context: %{current_user: %User{id: logged_user_id, role: role}}}
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) do
with true <- user_id == logged_user_id or is_moderator(role),
%Page{} = page <-
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, page}
end
end
@doc """
Returns the list of groups this user is a member is a member of
"""
def user_memberships(
%User{id: user_id},
%{page: page, limit: limit} = _args,
%{context: %{current_user: %User{id: logged_user_id}}}
) do
with true <- user_id == logged_user_id,
memberships <-
Actors.list_memberships_for_user(
user_id,
page,
limit
) do
{:ok, memberships}
end
end
@doc """
Returns the list of draft events for the current user
"""
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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
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def change_password(
_parent,
%{old_password: old_password, new_password: new_password},
%{context: %{current_user: %User{} = user}}
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) do
with {:can_change_password, true} <-
{:can_change_password, Authenticator.can_change_password?(user)},
{:current_password, {:ok, %User{}}} <-
{:current_password, Authenticator.login(user.email, old_password)},
{:same_password, false} <- {:same_password, old_password == new_password},
{:ok, %User{} = user} <-
user
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|> User.password_change_changeset(%{"password" => new_password})
|> Repo.update() do
{:ok, user}
else
{:current_password, _} ->
{:error, dgettext("errors", "The current password is invalid")}
{:same_password, true} ->
{:error, dgettext("errors", "The new password must be different")}
{:error, %Ecto.Changeset{errors: [password: {"registration.error.password_too_short", _}]}} ->
{:error,
dgettext(
"errors",
"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, dgettext("errors", "You need to be logged-in to change your password")}
end
def change_email(_parent, %{email: new_email, password: password}, %{
context: %{current_user: %User{email: old_email} = user}
}) do
with {:can_change_password, true} <-
{:can_change_password, Authenticator.can_change_email?(user)},
{:current_password, {:ok, %User{}}} <-
{:current_password, Authenticator.login(user.email, password)},
{:same_email, false} <- {:same_email, new_email == old_email},
{:email_valid, true} <- {:email_valid, Email.Checker.valid?(new_email)},
{:ok, %User{} = user} <-
user
|> User.changeset(%{
unconfirmed_email: new_email,
confirmation_token: Crypto.random_string(@confirmation_token_length),
confirmation_sent_at: DateTime.utc_now() |> DateTime.truncate(:second)
})
|> Repo.update() do
user
|> Email.User.send_email_reset_old_email()
|> Email.Mailer.deliver_later()
user
|> Email.User.send_email_reset_new_email()
|> Email.Mailer.deliver_later()
{:ok, user}
else
{:current_password, _} ->
{:error, dgettext("errors", "The password provided is invalid")}
{:same_email, true} ->
{:error, dgettext("errors", "The new email must be different")}
{:email_valid, _} ->
{:error, dgettext("errors", "The new email doesn't seem to be valid")}
end
end
def change_email(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to change your email")}
end
def validate_email(_parent, %{token: token}, _resolution) do
with %User{} = user <- Users.get_user_by_activation_token(token),
{:ok, %User{} = user} <-
user
|> User.changeset(%{
email: user.unconfirmed_email,
unconfirmed_email: nil,
confirmation_token: nil,
confirmation_sent_at: nil
})
|> Repo.update() do
{:ok, user}
end
end
def delete_account(_parent, %{user_id: user_id}, %{
context: %{current_user: %User{role: role} = moderator_user}
})
when is_moderator(role) do
with {:moderator_actor, %Actor{} = moderator_actor} <-
{:moderator_actor, Users.get_actor_for_user(moderator_user)},
%User{disabled: false} = user <- Users.get_user(user_id),
{:ok, %User{}} <-
do_delete_account(%User{} = user, actor_performing: Relay.get_actor()) do
Admin.log_action(moderator_actor, "delete", user)
else
{:moderator_actor, nil} ->
{:error, dgettext("errors", "No profile found for the moderator user")}
%User{disabled: true} ->
{:error, dgettext("errors", "User already disabled")}
end
end
def delete_account(_parent, args, %{
context: %{current_user: %User{email: email} = user}
}) do
with {:user_has_password, true} <- {:user_has_password, Authenticator.has_password?(user)},
{:confirmation_password, password} when not is_nil(password) <-
{:confirmation_password, Map.get(args, :password)},
{:current_password, {:ok, _}} <-
{:current_password, Authenticator.authenticate(email, password)} do
do_delete_account(user, reserve_email: false)
else
# If the user hasn't got any password (3rd-party auth)
{:user_has_password, false} ->
do_delete_account(user, reserve_email: false)
{:confirmation_password, nil} ->
{:error, dgettext("errors", "The password provided is invalid")}
{:current_password, _} ->
{:error, dgettext("errors", "The password provided is invalid")}
end
end
def delete_account(_parent, _args, _resolution) do
{:error, dgettext("errors", "You need to be logged-in to delete your account")}
end
@spec do_delete_account(User.t(), Keyword.t()) :: {:ok, User.t()}
defp do_delete_account(%User{} = user, options) do
with actors <- Users.get_actors_for_user(user),
activated <- not is_nil(user.confirmed_at),
# Detach actors from user
:ok <- Enum.each(actors, fn actor -> Actors.update_actor(actor, %{user_id: nil}) end),
# Launch a background job to delete actors
:ok <-
Enum.each(actors, fn actor ->
actor_performing = Keyword.get(options, :actor_performing, actor)
ActivityPub.delete(actor, actor_performing, true)
end),
# Delete user
{:ok, user} <-
Users.delete_user(user, reserve_email: Keyword.get(options, :reserve_email, activated)) do
{:ok, user}
end
end
@spec user_settings(User.t(), map(), map()) :: {:ok, list(Setting.t())} | {:error, String.t()}
def user_settings(%User{} = user, _args, %{
context: %{current_user: %User{role: role}}
})
when is_moderator(role) do
with {:setting, settings} <- {:setting, Users.get_setting(user)} do
{:ok, settings}
end
end
def user_settings(%User{id: user_id} = user, _args, %{
context: %{current_user: %User{id: logged_user_id}}
}) do
with {:same_user, true} <- {:same_user, user_id == logged_user_id},
{:setting, settings} <- {:setting, Users.get_setting(user)} do
{:ok, settings}
else
{:same_user, _} ->
{:error, dgettext("errors", "User requested is not logged-in")}
end
end
@spec set_user_setting(map(), map(), map()) :: {:ok, Setting.t()} | {:error, any()}
def set_user_setting(_parent, attrs, %{
context: %{current_user: %User{id: logged_user_id}}
}) do
attrs = Map.put(attrs, :user_id, logged_user_id)
res =
case Users.get_setting(logged_user_id) do
nil ->
Users.create_setting(attrs)
%Setting{} = setting ->
Users.update_setting(setting, attrs)
end
case res do
{:ok, %Setting{} = setting} ->
{:ok, setting}
{:error, changeset} ->
Logger.debug(inspect(changeset))
{:error, dgettext("errors", "Error while saving user settings")}
end
end
def update_locale(_parent, %{locale: locale}, %{
context: %{current_user: %User{locale: current_locale} = user}
}) do
with true <- current_locale != locale,
{:ok, %User{} = updated_user} <- Users.update_user(user, %{locale: locale}) do
{:ok, updated_user}
else
false ->
{:ok, user}
end
end
@spec update_user_login_information(User.t(), map()) ::
{:ok, User.t()} | {:error, Ecto.Changeset.t()}
defp update_user_login_information(
%User{current_sign_in_at: current_sign_in_at, current_sign_in_ip: current_sign_in_ip} =
user,
context
) do
with current_ip <- Map.get(context, :ip),
now <- DateTime.utc_now() do
Users.update_user(user, %{
last_sign_in_at: current_sign_in_at || now,
last_sign_in_ip: current_sign_in_ip || current_ip,
current_sign_in_ip: current_ip,
current_sign_in_at: now
})
end
end
end