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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.PasswordResetToken do
   6   use Ecto.Schema
   7
   8   import Ecto.Changeset
   9
  10   alias Pleroma.PasswordResetToken
  11   alias Pleroma.Repo
  12   alias Pleroma.User
  13
  14   schema "password_reset_tokens" do
  15     belongs_to(:user, User, type: Pleroma.FlakeId)
  16     field(:token, :string)
  17     field(:used, :boolean, default: false)
  18
  19     timestamps()
  20   end
  21
  22   def create_token(%User{} = user) do
  23     token = :crypto.strong_rand_bytes(32) |> Base.url_encode64()
  24
  25     token = %PasswordResetToken{
  26       user_id: user.id,
  27       used: false,
  28       token: token
  29     }
  30
  31     Repo.insert(token)
  32   end
  33
  34   def used_changeset(struct) do
  35     struct
  36     |> cast(%{}, [])
  37     |> put_change(:used, true)
  38   end
  39
  40   @spec reset_password(binary(), map()) :: {:ok, User.t()} | {:error, binary()}
  41   def reset_password(token, data) do
  42     with %{used: false} = token <- Repo.get_by(PasswordResetToken, %{token: token}),
  43          %User{} = user <- User.get_cached_by_id(token.user_id),
  44          {:ok, _user} <- User.reset_password(user, data),
  45          {:ok, token} <- Repo.update(used_changeset(token)) do
  46       {:ok, token}
  47     else
  48       _e -> {:error, token}
  49     end
  50   end
  51 end