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https://framagit.org/framasoft/mobilizon.git
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82 lines
2.6 KiB
Elixir
82 lines
2.6 KiB
Elixir
defmodule Mobilizon.Web.AuthController do
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use Mobilizon.Web, :controller
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alias Mobilizon.Service.Auth.Authenticator
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alias Mobilizon.Users
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alias Mobilizon.Users.User
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require Logger
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plug(:put_layout, false)
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plug(Ueberauth)
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def request(conn, %{"provider" => provider} = _params) do
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redirect(conn, to: "/login?code=Login Provider not found&provider=#{provider}")
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end
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def callback(
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%{assigns: %{ueberauth_failure: fails}} = conn,
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%{"provider" => provider} = _params
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) do
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Logger.warn("Unable to login user with #{provider} #{inspect(fails)}")
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redirect(conn, to: "/login?code=Error with Login Provider&provider=#{provider}")
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end
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def callback(
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%{assigns: %{ueberauth_auth: %Ueberauth.Auth{strategy: strategy} = auth}} = conn,
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_params
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) do
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email = email_from_ueberauth(auth)
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[_, _, _, strategy] = strategy |> to_string() |> String.split(".")
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strategy = String.downcase(strategy)
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user =
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with {:valid_email, false} <- {:valid_email, is_nil(email) or email == ""},
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{:error, :user_not_found} <- Users.get_user_by_email(email),
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{:ok, %User{} = user} <- Users.create_external(email, strategy) do
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user
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else
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{:ok, %User{} = user} ->
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user
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{:error, error} ->
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{:error, error}
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error ->
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{:error, error}
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end
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with %User{} = user <- user,
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{:ok, %{access_token: access_token, refresh_token: refresh_token}} <-
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Authenticator.generate_tokens(user) do
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Logger.info("Logged-in user \"#{email}\" through #{strategy}")
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render(conn, "callback.html", %{
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access_token: access_token,
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refresh_token: refresh_token,
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user: user
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})
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else
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err ->
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Logger.warn("Unable to login user \"#{email}\" #{inspect(err)}")
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redirect(conn, to: "/login?code=Error with Login Provider&provider=#{strategy}")
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end
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end
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# Github only give public emails as part of the user profile,
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# so we explicitely request all user emails and filter on the primary one
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defp email_from_ueberauth(%Ueberauth.Auth{
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strategy: Ueberauth.Strategy.Github,
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extra: %Ueberauth.Auth.Extra{raw_info: %{user: %{"emails" => emails}}}
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})
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when length(emails) > 0,
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do: emails |> Enum.find(& &1["primary"]) |> (& &1["email"]).()
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defp email_from_ueberauth(%Ueberauth.Auth{
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extra: %Ueberauth.Auth.Extra{raw_info: %{user: %{"email" => email}}}
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})
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when not is_nil(email) and email != "",
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do: email
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defp email_from_ueberauth(_), do: nil
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end
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