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{-# LANGUAGE OverloadedStrings #-}
module Types where
import qualified Data.ByteString as B
import qualified Data.ByteString.Char8 as B8
import Raaz.Core.Encode
import Data.Monoid
import Data.Word
import Data.Time.Clock
import Text.Read
-- | A password used to encrypt a key stored in keysafe.
newtype Password = Password B.ByteString
-- | A name associated with a key stored in keysafe.
newtype Name = Name B.ByteString
deriving (Show)
-- | The type of the key that is stored in keysafe.
newtype KeyType = KeyType B.ByteString
deriving (Show)
gpgKey :: KeyType
gpgKey = KeyType "gpg"
-- | Enough information to uniquely identify a key stored in keysafe.
data KeyIdent = KeyIdent KeyType Name
deriving (Show)
-- | A KeyIdent is serialized in the form "keytype name".
-- For example "gpg Joey Hess"
instance Encodable KeyIdent where
toByteString (KeyIdent (KeyType t) (Name n)) =
t <> B.singleton identSepChar <> n
fromByteString b = case B.break (== identSepChar) b of
(t, n)
| B.null n -> Nothing
| otherwise -> Just $
KeyIdent (KeyType t) (Name (B.drop 1 n))
identSepChar :: Word8
identSepChar = 32
newtype ShardNum = ShardNum Int
deriving (Show)
-- | Enough information to uniquely identify an object stored on a keysafe
-- server for a key.
data ObjectIdent = ObjectIdent ShardNum KeyIdent
deriving (Show)
-- | An ObjectIdent is serialied in the form "shardnum keytype name"
-- For example "1 gpg Joey Hess"
instance Encodable ObjectIdent where
toByteString (ObjectIdent (ShardNum n) keyident) =
B8.pack (show n) <> B.singleton identSepChar <> toByteString keyident
fromByteString b = case B.break (== identSepChar) b of
(ns, rest)
| B.null ns -> Nothing
| otherwise -> do
keyident <- fromByteString (B.drop 1 rest)
n <- readMaybe (B8.unpack ns)
return $ ObjectIdent (ShardNum n) keyident
-- | An estimated cost to perform an operation.
data Cost = CPUCost Seconds | GPUCost Seconds
deriving (Show)
newtype Seconds = Seconds NominalDiffTime
deriving (Show)
data Benchmark t = Benchmark { expectedBenchmark :: t, actualBenchmark :: t }
deriving (Show)
-- | In testing mode, the cryptographic difficulty is dialed back.
data RunMode = SecureMode | TestingMode
deriving (Show)
|
