51 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
			
		
		
	
	
			51 lines
		
	
	
	
		
			1.2 KiB
		
	
	
	
		
			Elixir
		
	
	
	
	
	
# Pleroma: A lightweight social networking server
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# Copyright © 2017-2020 Pleroma Authors <https://pleroma.social/>
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# SPDX-License-Identifier: AGPL-3.0-only
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defmodule Pleroma.Plugs.AuthenticationPlug do
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  alias Comeonin.Pbkdf2
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  import Plug.Conn
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  alias Pleroma.User
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  require Logger
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  def init(options), do: options
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  def checkpw(password, "$6" <> _ = password_hash) do
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    :crypt.crypt(password, password_hash) == password_hash
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  end
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  def checkpw(password, "$pbkdf2" <> _ = password_hash) do
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    Pbkdf2.checkpw(password, password_hash)
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  end
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  def checkpw(_password, _password_hash) do
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    Logger.error("Password hash not recognized")
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    false
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  end
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  def call(%{assigns: %{user: %User{}}} = conn, _), do: conn
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  def call(
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        %{
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          assigns: %{
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            auth_user: %{password_hash: password_hash} = auth_user,
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            auth_credentials: %{password: password}
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          }
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        } = conn,
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        _
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      ) do
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    if Pbkdf2.checkpw(password, password_hash) do
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      conn
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      |> assign(:user, auth_user)
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    else
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      conn
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    end
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  end
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  def call(%{assigns: %{auth_credentials: %{password: _}}} = conn, _) do
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    Pbkdf2.dummy_checkpw()
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    conn
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  end
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  def call(conn, _), do: conn
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end
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