{-# LANGUAGE OverloadedStrings #-}
module Network.Xmpp.Sasl.StringPrep where

import Text.StringPrep
import qualified Data.Set as Set
import Data.Text(singleton)

nonAsciiSpaces = Set.fromList [ '\x00A0','\x1680','\x2000','\x2001','\x2002'
                              , '\x2003', '\x2004','\x2005','\x2006','\x2007'
                              , '\x2008','\x2009', '\x200A','\x200B' ,'\x202F'
                              , '\x205F','\x3000']

toSpace x = if x `Set.member` nonAsciiSpaces then " " else singleton x

saslPrepQuery = Profile
    [b1, toSpace]
    True
    [ c12
    , c21
    , c22
    , c3
    , c4
    , c5
    , c6
    , c7
    , c8
    , c9
    ]
    True

saslPrepStore = Profile
    [b1, toSpace]
    True
    [ a1
    , c12
    , c21
    , c22
    , c3
    , c4
    , c5
    , c6
    , c7
    , c8
    , c9
    ]
    True

normalizePassword = runStringPrep saslPrepStore
normalizeUsername = runStringPrep saslPrepQuery