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   1 # Pleroma: A lightweight social networking server
   2 # Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
   3 # SPDX-License-Identifier: AGPL-3.0-only
   4
   5 defmodule Pleroma.Web.MongooseIM.MongooseIMController do
   6   use Pleroma.Web, :controller
   7
   8   alias Comeonin.Pbkdf2
   9   alias Pleroma.Plugs.RateLimiter
  10   alias Pleroma.Repo
  11   alias Pleroma.User
  12
  13   plug(RateLimiter, [name: :authentication] when action in [:user_exists, :check_password])
  14   plug(RateLimiter, [name: :authentication, params: ["user"]] when action == :check_password)
  15
  16   def user_exists(conn, %{"user" => username}) do
  17     with %User{} <- Repo.get_by(User, nickname: username, local: true) do
  18       conn
  19       |> json(true)
  20     else
  21       _ ->
  22         conn
  23         |> put_status(:not_found)
  24         |> json(false)
  25     end
  26   end
  27
  28   def check_password(conn, %{"user" => username, "pass" => password}) do
  29     with %User{password_hash: password_hash} <-
  30            Repo.get_by(User, nickname: username, local: true),
  31          true <- Pbkdf2.checkpw(password, password_hash) do
  32       conn
  33       |> json(true)
  34     else
  35       false ->
  36         conn
  37         |> put_status(:forbidden)
  38         |> json(false)
  39
  40       _ ->
  41         conn
  42         |> put_status(:not_found)
  43         |> json(false)
  44     end
  45   end
  46 end