{-# LANGUAGE
RecordWildCards
, OverloadedStrings
, DeriveGeneric
, DeriveDataTypeable
#-}
module Data.URI.Auth where
import Data.URI.Auth.Host (URIAuthHost, parseURIAuthHost, printURIAuthHost)
import Prelude hiding (Maybe (..), maybe)
import qualified Prelude as P
import Data.Strict.Maybe (Maybe (..), maybe)
import Data.Text (Text)
import Data.Word (Word16)
import qualified Data.Text as T
import Data.Attoparsec.Text (Parser, char, decimal, takeWhile1, (<?>))
import Data.Monoid ((<>))
import Control.Monad (void)
import Control.Applicative (optional)
import Data.Data (Typeable)
import GHC.Generics (Generic)
import Test.QuickCheck (Arbitrary (..))
import Test.QuickCheck.Gen (oneof, listOf1, elements)
data URIAuth = URIAuth
{ uriAuthUser :: !(Maybe Text)
, uriAuthHost :: !URIAuthHost
, uriAuthPort :: !(Maybe Word16)
} deriving (Show, Eq, Typeable, Generic)
instance Arbitrary URIAuth where
arbitrary = URIAuth <$> arbitraryUser <*> arbitrary <*> arbitraryPort
where
arbitraryUser = oneof [pure Nothing, Just <$> arbitraryNonEmptyText]
arbitraryPort = oneof [pure Nothing, Just <$> arbitrary]
arbitraryNonEmptyText = T.pack <$> listOf1 (elements ['a' .. 'z'])
printURIAuth :: URIAuth -> Text
printURIAuth URIAuth{..} =
maybe "" (<> "@") uriAuthUser
<> printURIAuthHost uriAuthHost
<> maybe "" (\p -> ":" <> T.pack (show p)) uriAuthPort
parseURIAuth :: Parser URIAuth
parseURIAuth =
URIAuth <$> (toStrictMaybe <$> optional parseUser)
<*> parseURIAuthHost
<*> (toStrictMaybe <$> optional parsePort)
where
parseUser = do
u <- takeWhile1 (\c -> c `notElem` ['@','.',':','/','?','&','=']) <?> "user value"
void (char '@') <?> "user @"
pure u
parsePort = do
void (char ':') <?> "port delimiter"
decimal
toStrictMaybe P.Nothing = Nothing
toStrictMaybe (P.Just x) = Just x