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|
{-# LANGUAGE OverloadedStrings #-}
{- Copyright 2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module HTTP.Server (runServer) where
import HTTP
import Types
import Types.Storage
import Storage.Local
import Serialization ()
import Servant
import Network.Wai
import Network.Wai.Handler.Warp
import Control.Monad.IO.Class
runServer :: Port -> IO ()
runServer port = run port app
serverStorage :: Storage
serverStorage = localStorage "server"
app :: Application
app = serve userAPI server
userAPI :: Proxy HttpAPI
userAPI = Proxy
server :: Server HttpAPI
server = apiVersion
:<|> motd
:<|> getObject
:<|> putObject
:<|> countObjects
apiVersion :: Handler APIVersion
apiVersion = return (APIVersion 1)
motd :: Handler Motd
motd = return $ Motd "Hello World!"
getObject :: StorableObjectIdent -> Maybe ProofOfWork -> Handler (ProofOfWorkRequirement StorableObject)
getObject i _pow = do
r <- liftIO $ retrieveShare serverStorage dummyShareNum i
case r of
RetrieveSuccess (Share _n o) -> return $ Result o
RetrieveFailure _ -> throwError err404
putObject :: StorableObjectIdent -> Maybe ProofOfWork -> StorableObject -> Handler (ProofOfWorkRequirement StoreResult)
putObject i _pow o = liftIO $ Result
<$> storeShare serverStorage i (Share dummyShareNum o)
countObjects :: Maybe ProofOfWork -> Handler (ProofOfWorkRequirement CountResult)
countObjects _pow = liftIO $ Result
<$> countShares serverStorage
-- | 1 is a dummy value; the server does not know the actual share numbers.
dummyShareNum :: ShareNum
dummyShareNum = 1
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