preview backend now fully works!

[Rakka.git] / Rakka / Utils.hs

diff --git a/Rakka/Utils.hs b/Rakka/Utils.hs
index e411694477f9c295c94583d2e04b6bcb0309f91a..0fddc6d64127baf25a1e5adbe19b58b5e758d039 100644 (file)
--- a/Rakka/Utils.hs
+++ b/Rakka/Utils.hs
@@ -3,14 +3,18 @@ module Rakka.Utils
     , parseYesOrNo
     , maybeA
     , deleteIfEmpty
-    , formatW3CDateTime
+    , chomp
+    , guessMIMEType
     )
     where
 
 import           Control.Arrow
 import           Control.Arrow.ArrowList
-import           System.Time
-import           Text.Printf
+import qualified Data.ByteString.Lazy as Lazy (ByteString)
+import qualified Data.ByteString.Lazy.Char8 as L8 hiding (ByteString)
+import           Magic
+import           Network.HTTP.Lucu
+import           System.IO.Unsafe
 
 
 yesOrNo :: Bool -> String
@@ -41,34 +45,15 @@ deleteIfEmpty
                        _  -> returnA -< str
 
 
-formatW3CDateTime :: CalendarTime -> String
-formatW3CDateTime time
-    = formatDateTime time ++ formatTimeZone time
+chomp :: String -> String
+chomp = reverse . snd . break (/= '\n') . reverse
+
+
+guessMIMEType :: Lazy.ByteString -> MIMEType
+guessMIMEType = read . unsafePerformIO . magicString magic . L8.unpack
     where
-      formatDateTime :: CalendarTime -> String
-      formatDateTime time
-          = printf "%04d-%02d-%02dT%02d:%02d:%02d"
-            (ctYear time)
-            (fromEnum (ctMonth time) + 1)
-            (ctDay  time)
-            (ctHour time)
-            (ctMin  time)
-            (ctSec  time)
-      
-      formatTimeZone :: CalendarTime -> String
-      formatTimeZone time
-          = case ctTZ time
-            of offset | offset <  0 -> '-':(showTZ $ negate offset)
-                      | offset == 0 -> "Z"
-                      | otherwise   -> '+':(showTZ offset)
-      
-      showTZ :: Int -> String   
-      showTZ offset
-          = let hour = offset `div` 3600
-                min  = (offset - hour * 3600) `div` 60
-            in 
-              show2 hour ++ ":" ++ show2 min
-            
-      show2 :: Int -> String
-      show2 n | n < 10    = '0':(show n)
-              | otherwise = show n
\ No newline at end of file
+      magic :: Magic
+      magic = unsafePerformIO
+              $ do m <- magicOpen [MagicMime]
+                   magicLoadDefault m
+                   return m