git.squeep.com Git - akkoma/blob - lib/pleroma/web/oauth/oauth_controller.ex

   1 defmodule Pleroma.Web.OAuth.OAuthController do
   2   use Pleroma.Web, :controller
   3
   4   alias Pleroma.Web.OAuth.{Authorization, Token, App}
   5   alias Pleroma.{Repo, User}
   6   alias Comeonin.Pbkdf2
   7
   8   def authorize(conn, params) do
   9     render conn, "show.html", %{
  10       response_type: params["response_type"],
  11       client_id: params["client_id"],
  12       scope: params["scope"],
  13       redirect_uri: params["redirect_uri"],
  14       state: params["state"]
  15     }
  16   end
  17
  18   def create_authorization(conn, %{"authorization" => %{"name" => name, "password" => password, "client_id" => client_id, "redirect_uri" => redirect_uri} = params}) do
  19     with %User{} = user <- User.get_cached_by_nickname(name),
  20          true <- Pbkdf2.checkpw(password, user.password_hash),
  21          %App{} = app <- Repo.get_by(App, client_id: client_id),
  22          {:ok, auth} <- Authorization.create_authorization(app, user) do
  23       if redirect_uri == "urn:ietf:wg:oauth:2.0:oob" do
  24         render conn, "results.html", %{
  25           auth: auth
  26         }
  27       else
  28         connector = if String.contains?(redirect_uri, "?"), do: "&", else: "?"
  29         url = "#{redirect_uri}#{connector}code=#{auth.token}"
  30         url = if params["state"] do
  31           url <> "&state=#{params["state"]}"
  32         else
  33           url
  34         end
  35         redirect(conn, external: url)
  36       end
  37     end
  38   end
  39
  40   # TODO
  41   # - proper scope handling
  42   def token_exchange(conn, %{"grant_type" => "authorization_code"} = params) do
  43     with %App{} = app <- Repo.get_by(App, client_id: params["client_id"], client_secret: params["client_secret"]),
  44          fixed_token = fix_padding(params["code"]),
  45          %Authorization{} = auth <- Repo.get_by(Authorization, token: fixed_token, app_id: app.id),
  46          {:ok, token} <- Token.exchange_token(app, auth) do
  47       response = %{
  48         token_type: "Bearer",
  49         access_token: token.token,
  50         refresh_token: token.refresh_token,
  51         expires_in: 60 * 10,
  52         scope: "read write follow"
  53       }
  54       json(conn, response)
  55     else
  56       _error -> json(conn, %{error: "Invalid credentials"})
  57     end
  58   end
  59
  60   defp fix_padding(token) do
  61     token
  62     |> Base.url_decode64!(padding: false)
  63     |> Base.url_encode64
  64   end
  65 end