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58 lines
No EOL
1.5 KiB
Elixir
58 lines
No EOL
1.5 KiB
Elixir
defmodule PhilomenaWeb.TotpPlug do
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@moduledoc """
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This plug ensures that a user session has a valid TOTP.
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## Example
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plug PhilomenaWeb.TotpPlug
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"""
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alias PhilomenaWeb.Router.Helpers, as: Routes
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@doc false
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@spec init(any()) :: any()
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def init(opts), do: opts
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@doc false
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@spec call(Plug.Conn.t(), any()) :: Plug.Conn.t()
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def call(conn, _opts) do
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conn
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|> Pow.Plug.current_user()
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|> case do
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nil -> conn
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user -> maybe_require_totp_phase(user, conn)
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end
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end
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defp maybe_require_totp_phase(%{otp_required_for_login: nil}, conn), do: conn
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defp maybe_require_totp_phase(%{otp_required_for_login: false}, conn), do: conn
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defp maybe_require_totp_phase(_user, conn) do
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conn.private
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|> Map.get(:pow_session_metadata, [])
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|> Keyword.get(:valid_totp_at)
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|> case do
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nil ->
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conn
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|> Phoenix.Controller.redirect(to: Routes.session_totp_path(conn, :new))
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|> Plug.Conn.halt()
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_valid_at ->
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conn
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end
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end
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@doc false
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@spec update_valid_totp_at_for_session(Plug.Conn.t(), map()) :: Plug.Conn.t()
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def update_valid_totp_at_for_session(conn, user) do
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metadata =
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conn.private
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|> Map.get(:pow_session_metadata, [])
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|> Keyword.put(:valid_totp_at, DateTime.utc_now())
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config = Pow.Plug.fetch_config(conn)
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plug = Pow.Plug.get_plug(config)
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conn = Plug.Conn.put_private(conn, :pow_session_metadata, metadata)
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plug.do_create(conn, user, config)
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end
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end |