wai-conduit (empty) → 3.0.0

raw patch · 4 files changed

+113/−0 lines, 4 filesdep +basedep +blaze-builderdep +bytestringsetup-changed

Dependencies added: base, blaze-builder, bytestring, conduit, http-types, transformers, wai

Files

• LICENSE +20/−0
• Network/Wai/Conduit.hs +67/−0
• Setup.hs +2/−0
• wai-conduit.cabal +24/−0

@@ -0,0 +1,20 @@+Copyright (c) 2014 Michael Snoyman++Permission is hereby granted, free of charge, to any person obtaining+a copy of this software and associated documentation files (the+"Software"), to deal in the Software without restriction, including+without limitation the rights to use, copy, modify, merge, publish,+distribute, sublicense, and/or sell copies of the Software, and to+permit persons to whom the Software is furnished to do so, subject to+the following conditions:++The above copyright notice and this permission notice shall be included+in all copies or substantial portions of the Software.++THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

@@ -0,0 +1,67 @@+-- | A light-weight wrapper around @Network.Wai@ to provide easy conduit support.+module Network.Wai.Conduit+    ( -- * Request body+      sourceRequestBody+      -- * Response body+    , responseSource+    , responseRawSource+      -- * Re-export+    , module Network.Wai+    ) where++import Network.Wai+import Data.Conduit+import Control.Monad.IO.Class (MonadIO, liftIO)+import Data.ByteString (ByteString)+import qualified Data.ByteString as S+import Control.Monad (unless)+import Network.HTTP.Types+import Blaze.ByteString.Builder (Builder)+import Data.IORef+import qualified Data.Conduit.List as CL++-- | Stream the request body.+--+-- Since 3.0.0+sourceRequestBody :: MonadIO m => Request -> Source m ByteString+sourceRequestBody req =+    loop+  where+    go = liftIO (requestBody req)++    loop = do+        bs <- go+        unless (S.null bs) $ do+            yield bs+            loop++-- | Create an HTTP response out of a @Source@.+--+-- Since 3.0.0+responseSource :: Status -> ResponseHeaders -> Source IO (Flush Builder) -> Response+responseSource s hs src = responseStream s hs $ \send flush ->+    src $$ CL.mapM_ (\mbuilder ->+        case mbuilder of+            Chunk b -> send b+            Flush -> flush)++-- | Create a raw response using a @Source@ and @Sink@ to represent the input+-- and output, respectively.+--+-- Since 3.0.0+responseRawSource :: (MonadIO m, MonadIO n)+                  => (Source m ByteString -> Sink ByteString n () -> IO ())+                  -> Response+                  -> Response+responseRawSource app backup =+    responseRaw app' backup+  where+    app' recv send =+        app src sink+      where+        src = do+            bs <- liftIO recv+            unless (S.null bs) $ do+                yield bs+                src+        sink = CL.mapM_ $ liftIO . send

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,24 @@+name:                wai-conduit+version:             3.0.0+synopsis:            conduit wrappers for WAI+description:         Since version 3.0.0, WAI has no built-in streaming data abstraction.+                     This library provides similar functionality to what existed in WAI 2.x.+homepage:            https://github.com/yesodweb/wai+license:             MIT+license-file:        LICENSE+author:              Michael Snoyman+maintainer:          michael@snoyman.com+category:            Web, Conduit+build-type:          Simple+cabal-version:       >=1.10++library+  exposed-modules:     Network.Wai.Conduit+  build-depends:       base            >= 4      && < 5+                     , wai             >= 3.0    && < 3.1+                     , conduit+                     , transformers+                     , bytestring+                     , http-types+                     , blaze-builder+  default-language:    Haskell2010