hs-tls/core/Network/TLS/Handshake/State.hs

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2013-07-18 06:19:05 +00:00
{-# LANGUAGE GeneralizedNewtypeDeriving #-}
{-# LANGUAGE MultiParamTypeClasses #-}
{-# LANGUAGE CPP #-}
-- |
-- Module : Network.TLS.Handshake.State
-- License : BSD-style
-- Maintainer : Vincent Hanquez <vincent@snarc.org>
-- Stability : experimental
-- Portability : unknown
--
module Network.TLS.Handshake.State
( HandshakeState(..)
, ClientCertRequestData
, HandshakeM
, newEmptyHandshake
) where
import Network.TLS.Util
import Network.TLS.Struct
import Network.TLS.Packet
import Network.TLS.Crypto
import qualified Data.ByteString as B
import Control.Applicative ((<$>))
import Control.Monad
import Control.Monad.State
import Control.Monad.Error
import Data.X509 (CertificateChain)
data HandshakeState = HandshakeState
{ hstClientVersion :: !(Version)
, hstClientRandom :: !ClientRandom
, hstServerRandom :: !(Maybe ServerRandom)
, hstMasterSecret :: !(Maybe Bytes)
, hstRSAPublicKey :: !(Maybe PubKey)
, hstRSAPrivateKey :: !(Maybe PrivKey)
, hstRSAClientPublicKey :: !(Maybe PubKey)
, hstRSAClientPrivateKey :: !(Maybe PrivKey)
, hstHandshakeDigest :: !HashCtx
, hstHandshakeMessages :: [Bytes]
, hstClientCertRequest :: !(Maybe ClientCertRequestData) -- ^ Set to Just-value when certificate request was received
, hstClientCertSent :: !Bool -- ^ Set to true when a client certificate chain was sent
, hstCertReqSent :: !Bool -- ^ Set to true when a certificate request was sent
, hstClientCertChain :: !(Maybe CertificateChain)
} deriving (Show)
type ClientCertRequestData = ([CertificateType],
Maybe [(HashAlgorithm, SignatureAlgorithm)],
[DistinguishedName])
newtype HandshakeM a = HandshakeM { runHandshakeM :: ErrorT TLSError (State HandshakeState) a }
deriving (Functor, Monad, MonadError TLSError)
instance MonadState HandshakeState HandshakeM where
put x = HandshakeM (lift $ put x)
get = HandshakeM (lift get)
#if MIN_VERSION_mtl(2,1,0)
state f = HandshakeM (lift $ state f)
#endif
-- create a new empty handshake state
newEmptyHandshake :: Version -> ClientRandom -> HashCtx -> HandshakeState
newEmptyHandshake ver crand digestInit = HandshakeState
{ hstClientVersion = ver
, hstClientRandom = crand
, hstServerRandom = Nothing
, hstMasterSecret = Nothing
, hstRSAPublicKey = Nothing
, hstRSAPrivateKey = Nothing
, hstRSAClientPublicKey = Nothing
, hstRSAClientPrivateKey = Nothing
, hstHandshakeDigest = digestInit
, hstHandshakeMessages = []
, hstClientCertRequest = Nothing
, hstClientCertSent = False
, hstCertReqSent = False
, hstClientCertChain = Nothing
}