mateamt/app/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.Set as S (empty)
import Data.ByteString.Lazy as BL hiding (putStrLn)
import qualified Data.Text as T
import Data.String
import Data.YAML
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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 Control.Monad.Reader
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import Control.Concurrent.STM.TVar
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import Options.Applicative
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-- internal imports
import API
import Model as M
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import AppTypes
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import Types
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import Control
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main :: IO ()
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main = do
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(Options confLoc) <- execParser opts
raw <- BL.readFile (T.unpack confLoc)
case decode1 raw of
Left (loc, msg) ->
error (T.unpack $ confLoc <> ":" <>
fromString (prettyPosWithSource loc raw " error") <>
fromString msg
)
Right
(ServerConfig
db_host
db_port
db_name
db_user
db_passwd
sym
lport
lhost
) -> do
conn <- connectPostgreSQL (
"host='" <> fromString (T.unpack db_host) <> "' " <>
"port=" <> fromString (show db_port) <> " " <>
"dbname='" <> fromString (T.unpack db_name) <> "' " <>
"user='" <> fromString (T.unpack db_user) <> "' " <>
"password='" <> fromString (T.unpack db_passwd) <> "'"
)
store <- newTVarIO S.empty
void $ execute_ conn initAvatar
void $ execute_ conn initUser
void $ execute_ conn initProduct
void $ execute_ conn initToken
void $ execute_ conn initAuthData
void $ execute_ conn initAmount
void $ execute_ conn initJournal
withStdoutLogger $ \ilog -> do
let settings = setPort (fromIntegral lport) $
setHost (fromString $ T.unpack lhost) $
setLogger ilog defaultSettings
initState = ReadState
{ rsConnection = conn
, rsTicketStore = store
}
runSettings settings (app initState)
where
opts = info (options <**> helper)
( fullDesc
<> progDesc "Run the \"mateamt\" API-Server."
<> header "mateamt - Your friendly mate distribution office"
)
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app :: ReadState -> Application
-- app conn = serveWithContext userApi genAuthServerContext (users conn)
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app initState =
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serveWithContext mateApi (genAuthServerContext (rsConnection initState)) $
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hoistServerWithContext
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mateApi
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authProxy
(`runReaderT` initState)
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( authGet :<|>
authSend :<|>
authLogout :<|>
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authManageList :<|>
authManageNewAuth :<|>
authManageDeleteAuth :<|>
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userNew :<|>
userGet :<|>
userUpdate :<|>
userList :<|>
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userRecharge :<|>
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userTransfer :<|>
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productNew :<|>
productOverview :<|>
productStockRefill :<|>
productStockUpdate :<|>
productList :<|>
productShortList :<|>
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buy :<|>
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journalShow :<|>
avatarGet :<|>
avatarInsert :<|>
avatarUpdate :<|>
avatarList
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)
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mateApi :: Proxy MateAPI
mateApi = Proxy
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authProxy :: Proxy '[ AuthHandler Request (Maybe (Int, AuthMethod)) ]
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authProxy = Proxy
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genAuthServerContext
:: Connection
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-> Context '[ AuthHandler Request (Maybe (Int, AuthMethod)) ]
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genAuthServerContext conn = authHandler conn Servant.:. EmptyContext
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type instance AuthServerData (AuthProtect "header-auth") = Maybe (Int, AuthMethod)
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authHandler :: Connection -> AuthHandler Request (Maybe (Int, AuthMethod))
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authHandler conn = mkAuthHandler handler
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where
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handler :: Request -> Handler (Maybe (Int, AuthMethod))
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handler req = do
let headers = requestHeaders req
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case lookup "Authentication" headers of
Just hh ->
validateToken hh conn
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_ ->
return Nothing