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mongodb_driver

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The MongoDB driver for Elixir

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mongodb_driver lib mongo auth cr.ex
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lib/mongo/auth/cr.ex 

defmodule Mongo.Auth.CR do

  @moduledoc false

  import Mongo.MongoDBConnection.Utils



  def auth({username, password}, s) do

    with {:ok, message} <- command(-2, [getnonce: 1], s),

         do: nonce(message, username, password, s)

  end



  defp nonce(%{"nonce" => nonce, "ok" => ok}, username, password, s)

  when ok == 1 # to support a response that returns 1 or 1.0

  do

    digest = digest(nonce, username, password)

    command = [authenticate: 1, user: username, nonce: nonce, key: digest]



    case command(-3, command, s) do

      {:ok, %{"ok" => ok}} when ok == 1 ->

        :ok

      {:ok, %{"ok" => 0.0, "errmsg" => reason, "code" => code}} ->

        {:error, Mongo.Error.exception(message: "auth failed for '#{username}': #{reason}", code: code)}

      {:ok, nil} ->

        {:error, Mongo.Error.exception(message: "auth failed for '#{username}'")}

      error ->

        error

    end

  end

end