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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.OAuth.Token do
   6   use Ecto.Schema
   7
   8   import Ecto.Query
   9
  10   alias Pleroma.User
  11   alias Pleroma.Repo
  12   alias Pleroma.Web.OAuth.Token
  13   alias Pleroma.Web.OAuth.App
  14   alias Pleroma.Web.OAuth.Authorization
  15
  16   schema "oauth_tokens" do
  17     field(:token, :string)
  18     field(:refresh_token, :string)
  19     field(:valid_until, :naive_datetime)
  20     belongs_to(:user, Pleroma.User, type: Pleroma.FlakeId)
  21     belongs_to(:app, App)
  22
  23     timestamps()
  24   end
  25
  26   def exchange_token(app, auth) do
  27     with {:ok, auth} <- Authorization.use_token(auth),
  28          true <- auth.app_id == app.id do
  29       create_token(app, Repo.get(User, auth.user_id))
  30     end
  31   end
  32
  33   def create_token(%App{} = app, %User{} = user) do
  34     token = :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false)
  35     refresh_token = :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false)
  36
  37     token = %Token{
  38       token: token,
  39       refresh_token: refresh_token,
  40       user_id: user.id,
  41       app_id: app.id,
  42       valid_until: NaiveDateTime.add(NaiveDateTime.utc_now(), 60 * 10)
  43     }
  44
  45     Repo.insert(token)
  46   end
  47
  48   def delete_user_tokens(%User{id: user_id}) do
  49     from(
  50       t in Pleroma.Web.OAuth.Token,
  51       where: t.user_id == ^user_id
  52     )
  53     |> Repo.delete_all()
  54   end
  55 end