mateamt/src/Main.hs

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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE TypeOperators #-}
{-# LANGUAGE DataKinds #-}
{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE FlexibleContexts #-}
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module Main where
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import Servant
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import Servant.Server.Experimental.Auth
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import Data.Time.Clock
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import Data.ByteString.Random
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import Data.ByteString.Base16 (decode)
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import Data.Set (empty)
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import Data.Maybe (isJust)
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import Database.PostgreSQL.Simple
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import Network.Wai
import Network.Wai.Logger
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import Network.Wai.Handler.Warp
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import Opaleye hiding (max)
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import Control.Monad.IO.Class (liftIO)
import Control.Monad (void)
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import Control.Monad.Reader
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import Control.Concurrent.STM.TVar
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-- internal imports
import API
import Model as M
import Types
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import Control
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main :: IO ()
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main = do
conn <- connectPostgreSQL
"host='localhost' port=5432 dbname='mateamt' user='mateamt' password='mateamt'"
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store <- newTVarIO empty
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execute_ conn initUser
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execute_ conn initProduct
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execute_ conn initToken
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execute_ conn initAmount
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execute_ conn initJournal
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withStdoutLogger $ \log -> do
let settings = setPort 3000 $ setLogger log defaultSettings
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initState = ReadState
{ rsConnection = conn
, rsTicketStore = store
}
runSettings settings (app initState)
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app :: ReadState -> Application
-- app conn = serveWithContext userApi genAuthServerContext (users conn)
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app initState =
serveWithContext userApi (genAuthServerContext (rsConnection initState)) $
hoistServerWithContext
userApi
authProxy
(`runReaderT` initState)
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( authGet :<|>
authSend :<|>
authLogout :<|>
userNew :<|>
userGet :<|>
userUpdate :<|>
userList :<|>
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userRecharge :<|>
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productNew :<|>
productOverview :<|>
productStockRefill :<|>
productStockUpdate :<|>
productList :<|>
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buy :<|>
journalShow
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)
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userApi :: Proxy UserAPI
userApi = Proxy
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authProxy :: Proxy '[ AuthHandler Request (Maybe Int) ]
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authProxy = Proxy
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genAuthServerContext
:: Connection
-> Context '[ AuthHandler Request (Maybe Int) ]
genAuthServerContext conn = authHandler conn Servant.:. EmptyContext
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type instance AuthServerData (AuthProtect "header-auth") = Maybe Int
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authHandler :: Connection -> AuthHandler Request (Maybe Int)
authHandler conn = mkAuthHandler handler
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where
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handler :: Request -> Handler (Maybe Int)
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handler req = do
let headers = requestHeaders req
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res <- case lookup "Authentication" headers of
Just hh ->
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validateToken conn (fst $ decode hh)
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_ ->
return Nothing
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return res