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mongodb_driver

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The MongoDB driver for Elixir

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

defmodule Mongo.Auth do

  @moduledoc false



  def run(opts, s) do

    auth = setup(opts)

    auther = mechanism(s)



    auth_source = opts[:auth_source]

    wire_version = s[:wire_version]



    s = if auth_source != nil && wire_version > 0,

          do: Map.put(s, :database, auth_source),

        else: s



    Enum.find_value(auth, fn opts ->

      case auther.auth(opts, s) do

        :ok ->

          nil

        error ->

          {mod, sock} = s.socket

          mod.close(sock)

          error

      end

    end) || {:ok, Map.put(s,:database, opts[:database])}

  end



  defp setup(opts) do

    username = opts[:username]

    password = opts[:password]

    auth     = opts[:auth] || []



    auth =

      Enum.map(auth, fn opts ->

        username = opts[:username]

        password = opts[:password]

        {username, password}

      end)



    if username && password, do: auth ++ [{username, password}], else: auth

  end



  defp mechanism(%{wire_version: version, auth_mechanism: :x509}) when version >= 3,

    do: Mongo.Auth.X509

  defp mechanism(%{wire_version: version}) when version >= 3,

    do: Mongo.Auth.SCRAM

  defp mechanism(_),

    do: Mongo.Auth.CR

end