git-annex/Assistant/WebApp.hs
2012-07-31 01:11:32 -04:00

106 lines
3.3 KiB
Haskell

{- git-annex assistant webapp data types
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE TypeFamilies, QuasiQuotes, MultiParamTypeClasses, TemplateHaskell, OverloadedStrings, RankNTypes #-}
{-# OPTIONS_GHC -fno-warn-orphans #-}
module Assistant.WebApp where
import Assistant.Common
import Assistant.ThreadedMonad
import Assistant.DaemonStatus
import Assistant.TransferQueue
import Assistant.Alert hiding (Widget)
import Utility.NotificationBroadcaster
import Utility.WebApp
import Utility.Yesod
import Yesod
import Yesod.Static
import Text.Hamlet
import Data.Text (Text, pack, unpack)
import Control.Concurrent.STM
staticFiles "static"
mkYesodData "WebApp" $(parseRoutesFile "Assistant/WebApp/routes")
data WebApp = WebApp
{ threadState :: ThreadState
, daemonStatus :: DaemonStatusHandle
, transferQueue :: TransferQueue
, secretToken :: Text
, relDir :: FilePath
, getStatic :: Static
, webAppState :: TMVar WebAppState
}
instance Yesod WebApp where
defaultLayout content = do
webapp <- getYesod
page <- widgetToPageContent $ do
addStylesheet $ StaticR css_bootstrap_css
addStylesheet $ StaticR css_bootstrap_responsive_css
addScript $ StaticR jquery_full_js
addScript $ StaticR js_bootstrap_dropdown_js
addScript $ StaticR js_bootstrap_modal_js
$(widgetFile "page")
hamletToRepHtml $(hamletFile $ hamletTemplate "bootstrap")
{- Require an auth token be set when accessing any (non-static route) -}
isAuthorized _ _ = checkAuthToken secretToken
{- Add the auth token to every url generated, except static subsite
- urls (which can show up in Permission Denied pages). -}
joinPath = insertAuthToken secretToken excludeStatic
where
excludeStatic [] = True
excludeStatic (p:_) = p /= "static"
makeSessionBackend = webAppSessionBackend
jsLoader _ = BottomOfHeadBlocking
data WebAppState = WebAppState
{ showIntro :: Bool
}
newWebAppState :: IO (TMVar WebAppState)
newWebAppState = liftIO $ atomically $
newTMVar $ WebAppState { showIntro = True }
getWebAppState :: forall sub. GHandler sub WebApp WebAppState
getWebAppState = liftIO . atomically . readTMVar =<< webAppState <$> getYesod
modifyWebAppState :: forall sub. (WebAppState -> WebAppState) -> GHandler sub WebApp ()
modifyWebAppState a = go =<< webAppState <$> getYesod
where
go s = liftIO $ atomically $ do
v <- takeTMVar s
putTMVar s $ a v
waitNotifier :: forall sub. (DaemonStatus -> NotificationBroadcaster) -> NotificationId -> GHandler sub WebApp ()
waitNotifier selector nid = do
notifier <- getNotifier selector
liftIO $ waitNotification $ notificationHandleFromId notifier nid
newNotifier :: forall sub. (DaemonStatus -> NotificationBroadcaster) -> GHandler sub WebApp NotificationId
newNotifier selector = do
notifier <- getNotifier selector
liftIO $ notificationHandleToId <$> newNotificationHandle notifier
getNotifier :: forall sub. (DaemonStatus -> NotificationBroadcaster) -> GHandler sub WebApp NotificationBroadcaster
getNotifier selector = do
webapp <- getYesod
liftIO $ selector <$> getDaemonStatus (daemonStatus webapp)
instance PathPiece NotificationId where
toPathPiece = pack . show
fromPathPiece = readish . unpack
instance PathPiece AlertId where
toPathPiece = pack . show
fromPathPiece = readish . unpack