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Glue.hs
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Glue.hs
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{-# LANGUAGE OverloadedStrings #-}
module Glue
( templateHandler
, newTemplateDirectory'
, defaultReloadHandler
, templateServe
, render
, bindSplices
, withSplices
) where
import Control.Applicative
import Control.Monad
import Data.ByteString.Char8 (ByteString)
import qualified Data.ByteString.Char8 as B
import Prelude hiding (catch)
import Snap.Types hiding (dir)
import Snap.Util.FileServe
import Text.Templating.Heist
import TemplateDirectory
templateHandler :: TemplateDirectory Snap
-> (TemplateDirectory Snap -> Snap ())
-> (TemplateState Snap -> Snap ())
-> Snap ()
templateHandler td reload f = reload td <|> (f =<< getTemplateState td)
defaultReloadHandler :: TemplateDirectory Snap -> Snap ()
defaultReloadHandler td = path "admin/reload" $ do
e <- reloadTemplateDirectory td
modifyResponse $ setContentType "text/plain; charset=utf-8"
writeBS . B.pack $ either id (const "Templates loaded successfully.") e
render :: TemplateState Snap -> ByteString -> Snap ()
render ts template = do
bytes <- renderTemplate ts template
flip (maybe pass) bytes $ \x -> do
modifyResponse $ setContentType "text/html; charset=utf-8"
writeBS x
templateServe :: TemplateState Snap -> Snap ()
templateServe ts = ifTop (render ts "index") <|> do
path' <- getSafePath
when (head path' == '_') pass
render ts $ B.pack path'