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{- Copyright 2016 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE OverloadedStrings #-}
module Storage.Network (
networkStorage,
networkStorageOverride,
) where
import Types
import Types.Storage
import Types.Server
import Storage.Local
import HTTP.Client
import HTTP.ProofOfWork
import System.FilePath
networkStorage :: StorageLevel -> Maybe LocalStorageDirectory -> Server -> Storage
networkStorage storagelevel localdir server = Storage
{ storeShare = store server
, retrieveShare = retrieve server
, obscureShares = obscure server
, countShares = count server
, moveShares = move server
, uploadQueue = Just $ localStorage storagelevel (storageDir localdir)
("uploadqueue" </> name)
, storageLevel = storagelevel
, getServer = Just server
}
where
ServerName name = serverName server
networkStorageOverride :: Maybe LocalStorageDirectory -> HostName -> Port -> IO (Maybe Storage)
networkStorageOverride lsd h p = return $ Just $
networkStorage LocallyPreferred lsd $ Server
{ serverName = ServerName h
, serverAddress = [ServerAddress h p]
, serverDesc = h
}
store :: Server -> StorableObjectIdent -> Share -> IO StoreResult
store srv i (Share _n o) =
serverRequest srv StoreFailure id i $ \pow ->
putObject i pow o
retrieve :: Server -> ShareNum -> StorableObjectIdent -> IO RetrieveResult
retrieve srv n i =
serverRequest srv RetrieveFailure (RetrieveSuccess . Share n) i $
getObject i
-- | Servers should automatically obscure, so do nothing.
-- (Could upload chaff.)
obscure :: Server -> IO ObscureResult
obscure _ = return ObscureSuccess
count :: Server -> IO CountResult
count srv = serverRequest srv CountFailure id NoPOWIdent countObjects
-- | Not needed for servers.
move :: Server -> Storage -> IO [StoreResult]
move _ _ = error "move is not implemented for servers"
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