103 lines
3.1 KiB
Elixir
103 lines
3.1 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2021 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Web.OAuth.Authorization do
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use Ecto.Schema
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alias Pleroma.Repo
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alias Pleroma.User
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alias Pleroma.Web.OAuth.App
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alias Pleroma.Web.OAuth.Authorization
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alias Pleroma.Web.OAuth.Token
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import Ecto.Changeset
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import Ecto.Query
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@type t :: %__MODULE__{}
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schema "oauth_authorizations" do
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field(:token, :string)
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field(:scopes, {:array, :string}, default: [])
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field(:valid_until, :naive_datetime_usec)
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field(:used, :boolean, default: false)
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belongs_to(:user, User, type: FlakeId.Ecto.CompatType)
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belongs_to(:app, App)
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timestamps()
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end
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@spec create_authorization(App.t(), User.t() | %{}, [String.t()] | nil) ::
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{:ok, Authorization.t()} | {:error, Changeset.t()}
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def create_authorization(%App{} = app, %User{} = user, scopes \\ nil) do
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%{
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scopes: scopes || app.scopes,
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user_id: user.id,
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app_id: app.id
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}
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|> create_changeset()
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|> Repo.insert()
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end
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@spec create_changeset(map()) :: Changeset.t()
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def create_changeset(attrs \\ %{}) do
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%Authorization{}
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|> cast(attrs, [:user_id, :app_id, :scopes, :valid_until])
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|> validate_required([:app_id, :scopes])
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|> add_token()
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|> add_lifetime()
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end
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defp add_token(changeset) do
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token = :crypto.strong_rand_bytes(32) |> Base.url_encode64(padding: false)
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put_change(changeset, :token, token)
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end
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defp add_lifetime(changeset) do
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lifespan = Token.lifespan()
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put_change(changeset, :valid_until, NaiveDateTime.add(NaiveDateTime.utc_now(), lifespan))
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end
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@spec use_changeset(Authtorizatiton.t(), map()) :: Changeset.t()
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def use_changeset(%Authorization{} = auth, params) do
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auth
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|> cast(params, [:used])
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|> validate_required([:used])
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end
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@spec use_token(Authorization.t()) ::
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{:ok, Authorization.t()} | {:error, Changeset.t()} | {:error, String.t()}
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def use_token(%Authorization{used: false, valid_until: valid_until} = auth) do
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if NaiveDateTime.diff(NaiveDateTime.utc_now(), valid_until) < 0 do
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Repo.update(use_changeset(auth, %{used: true}))
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else
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{:error, "token expired"}
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end
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end
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def use_token(%Authorization{used: true}), do: {:error, "already used"}
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@spec delete_user_authorizations(User.t()) :: {integer(), any()}
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def delete_user_authorizations(%User{} = user) do
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user
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|> delete_by_user_query
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|> Repo.delete_all()
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end
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def delete_by_user_query(%User{id: user_id}) do
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from(a in __MODULE__, where: a.user_id == ^user_id)
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end
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@doc "gets auth for app by token"
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@spec get_by_token(App.t(), String.t()) :: {:ok, t()} | {:error, :not_found}
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def get_by_token(%App{id: app_id} = _app, token) do
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from(t in __MODULE__, where: t.app_id == ^app_id and t.token == ^token)
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|> Repo.find_resource()
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end
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def get_preeexisting_by_app_and_user(%App{id: app_id} = _app, %User{id: user_id} = _user) do
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from(t in __MODULE__, where: t.app_id == ^app_id and t.user_id == ^user_id, limit: 1)
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|> Repo.find_resource()
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end
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end
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