45 lines
1.2 KiB
Elixir
45 lines
1.2 KiB
Elixir
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Plugs.OAuthScopesPlug do
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import Plug.Conn
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import Pleroma.Web.Gettext
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@behaviour Plug
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def init(%{scopes: _} = options), do: options
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def call(%Plug.Conn{assigns: assigns} = conn, %{scopes: scopes} = options) do
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op = options[:op] || :|
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token = assigns[:token]
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cond do
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is_nil(token) ->
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conn
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op == :| && scopes -- token.scopes != scopes ->
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conn
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op == :& && scopes -- token.scopes == [] ->
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conn
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options[:fallback] == :proceed_unauthenticated ->
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conn
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|> assign(:user, nil)
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|> assign(:token, nil)
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true ->
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missing_scopes = scopes -- token.scopes
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permissions = Enum.join(missing_scopes, " #{op} ")
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error_message =
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dgettext("errors", "Insufficient permissions: %{permissions}.", permissions: permissions)
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conn
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|> put_resp_content_type("application/json")
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|> send_resp(:forbidden, Jason.encode!(%{error: error_message}))
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|> halt()
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end
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end
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end
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