akkoma/lib/pleroma/web/oauth/authorization.ex
William Pitcock e9ef4b8da6 oauth: never use base64 padding when returning tokens to applications
The normal Base64 alphabet uses the equals sign (=) as a padding character.  Since
Base64 strings are self-synchronizing, padding characters are unnecessary, so don't
generate them in the first place.
2019-02-14 01:10:04 +00:00

64 lines
1.6 KiB
Elixir

# Pleroma: A lightweight social networking server
# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
# SPDX-License-Identifier: AGPL-3.0-only
defmodule Pleroma.Web.OAuth.Authorization do
use Ecto.Schema
alias Pleroma.User
alias Pleroma.Repo
alias Pleroma.Web.OAuth.Authorization
alias Pleroma.Web.OAuth.App
import Ecto.Changeset
import Ecto.Query
schema "oauth_authorizations" do
field(:token, :string)
field(:valid_until, :naive_datetime)
field(:used, :boolean, default: false)
belongs_to(:user, Pleroma.User, type: Pleroma.FlakeId)
belongs_to(:app, App)
timestamps()
end
def create_authorization(%App{} = app, %User{} = user) do
token = :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false)
authorization = %Authorization{
token: token,
used: false,
user_id: user.id,
app_id: app.id,
valid_until: NaiveDateTime.add(NaiveDateTime.utc_now(), 60 * 10)
}
Repo.insert(authorization)
end
def use_changeset(%Authorization{} = auth, params) do
auth
|> cast(params, [:used])
|> validate_required([:used])
end
def use_token(%Authorization{used: false, valid_until: valid_until} = auth) do
if NaiveDateTime.diff(NaiveDateTime.utc_now(), valid_until) < 0 do
Repo.update(use_changeset(auth, %{used: true}))
else
{:error, "token expired"}
end
end
def use_token(%Authorization{used: true}), do: {:error, "already used"}
def delete_user_authorizations(%User{id: user_id}) do
from(
a in Pleroma.Web.OAuth.Authorization,
where: a.user_id == ^user_id
)
|> Repo.delete_all()
end
end