{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE ScopedTypeVariables #-}
import Test.Hspec
import qualified Data.ByteString as S
import qualified Data.ByteString.Char8 as S8
import qualified Data.ByteString.Lazy.Char8 as L8
import Test.HUnit
import Network.Wai hiding (requestBody)
import qualified Network.Wai as Wai
import Network.Wai.Handler.Warp (runSettings, defaultSettings, settingsPort, settingsBeforeMainLoop)
import Network.HTTP.Conduit hiding (port)
import qualified Network.HTTP.Conduit as NHC
import Network.HTTP.Conduit.MultipartFormData
import Control.Concurrent (forkIO, killThread, putMVar, takeMVar, newEmptyMVar, threadDelay)
import Network.HTTP.Types
import Control.Exception.Lifted (try, SomeException, bracket, onException, IOException)
import qualified Data.IORef as I
import qualified Control.Exception as E (catch)
import Network.HTTP.Conduit.ConnInfo
import Network (withSocketsDo)
import Network.Socket (sClose)
import qualified Network.BSD
import CookieTest (cookieTest)
import Data.Conduit.Network (runTCPServer, serverSettings, HostPreference (..), appSink, appSource, bindPort, serverAfterBind, ServerSettings)
import qualified Data.Conduit.Network
import System.IO.Unsafe (unsafePerformIO)
import Data.Conduit (($$), yield, Flush (Chunk, Flush), runResourceT, await)
import Control.Monad (void, forever)
import Control.Monad.IO.Class (liftIO)
import Data.ByteString.UTF8 (fromString)
import Data.Conduit.List (sourceList)
import Data.CaseInsensitive (mk)
import Data.List (partition)
import qualified Data.Conduit.List as CL
import qualified Data.Text as T
import qualified Data.Text.Encoding as TE
import qualified Data.ByteString.Lazy as L
import Blaze.ByteString.Builder (fromByteString, toByteString)
import System.IO
import Data.Monoid (mconcat)
import Data.Time.Clock
import Data.Time.Calendar
past :: UTCTime
past = UTCTime (ModifiedJulianDay 56200) (secondsToDiffTime 0)
future :: UTCTime
future = UTCTime (ModifiedJulianDay 562000) (secondsToDiffTime 0)
cookie :: Cookie
cookie = Cookie { cookie_name = "key"
, cookie_value = "value"
, cookie_expiry_time = future
, cookie_domain = "127.0.0.1"
, cookie_path = "/dump_cookies"
, cookie_creation_time = past
, cookie_last_access_time = past
, cookie_persistent = False
, cookie_host_only = False
, cookie_secure_only = False
, cookie_http_only = False
}
cookie_jar :: CookieJar
cookie_jar = createCookieJar [cookie]
app :: Application
app req =
case pathInfo req of
[] ->
if maybe False ("example.com:" `S.isPrefixOf`) $ lookup "host" $ Wai.requestHeaders req
then return $ responseLBS status200 [] "homepage for example.com"
else return $ responseLBS status200 [] "homepage"
["cookies"] -> return $ responseLBS status200 [tastyCookie] "cookies"
["cookie_redir1"] -> return $ responseLBS status303 [tastyCookie, (hLocation, "/checkcookie")] ""
["checkcookie"] -> return $ case lookup hCookie $ Wai.requestHeaders req of
Just "flavor=chocolate-chip" -> responseLBS status200 [] "nom-nom-nom"
_ -> responseLBS status412 [] "Baaaw where's my chocolate?"
["infredir", i'] ->
let i = read $ T.unpack i' :: Int
in return $ responseLBS status303
[(hLocation, S.append "/infredir/" $ S8.pack $ show $ i+1)]
(L8.pack $ show i)
["dump_cookies"] -> return $ responseLBS status200 [] $ L.fromChunks $ return $ maybe "" id $ lookup hCookie $ Wai.requestHeaders req
["delayed"] -> return $ ResponseSource status200 [("foo", "bar")] $ do
yield Flush
liftIO $ threadDelay 30000000
yield $ Chunk $ fromByteString "Hello World!"
_ -> return $ responseLBS status404 [] "not found"
where tastyCookie = (mk (fromString "Set-Cookie"), fromString "flavor=chocolate-chip;")
nextPort :: I.IORef Int
nextPort = unsafePerformIO $ I.newIORef 15452
getPort :: IO Int
getPort = do
port <- I.atomicModifyIORef nextPort $ \p -> (p + 1, p)
esocket <- try $ bindPort port HostIPv4
case esocket of
Left (_ :: IOException) -> getPort
Right socket -> do
sClose socket
return port
withApp :: Application -> (Int -> IO ()) -> IO ()
withApp app' f = withApp' (const app') f
withApp' :: (Int -> Application) -> (Int -> IO ()) -> IO ()
withApp' app' f = do
port <- getPort
baton <- newEmptyMVar
bracket
(forkIO $ runSettings defaultSettings
{ settingsPort = port
, settingsBeforeMainLoop = putMVar baton ()
} (app' port) `onException` putMVar baton ())
killThread
(const $ takeMVar baton >> f port)
main :: IO ()
main = withSocketsDo $ do
mapM_ (`hSetBuffering` LineBuffering) [stdout, stderr]
hspec $ do
cookieTest
describe "simpleHttp" $ do
it "gets homepage" $ withApp app $ \port -> do
lbs <- simpleHttp $ "http://127.0.0.1:" ++ show port
lbs @?= "homepage"
it "throws exception on 404" $ withApp app $ \port -> do
elbs <- try $ simpleHttp $ concat ["http://127.0.0.1:", show port, "/404"]
case elbs of
Left (_ :: SomeException) -> return ()
Right _ -> error "Expected an exception"
describe "httpLbs" $ do
it "preserves 'set-cookie' headers" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/cookies"]
withManager $ \manager -> do
response <- httpLbs request manager
let setCookie = mk (fromString "Set-Cookie")
(setCookieHeaders, _) = partition ((== setCookie) . fst) (responseHeaders response)
liftIO $ assertBool "response contains a 'set-cookie' header" $ length setCookieHeaders > 0
it "redirects set cookies" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/cookie_redir1"]
withManager $ \manager -> do
response <- httpLbs request manager
liftIO $ (responseBody response) @?= "nom-nom-nom"
it "user-defined cookie jar works" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/dump_cookies"]
withManager $ \manager -> do
response <- httpLbs (request {redirectCount = 1, cookieJar = Just cookie_jar}) manager
liftIO $ (responseBody response) @?= "key=value"
it "user-defined cookie jar is not ignored when redirection is disabled" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/dump_cookies"]
withManager $ \manager -> do
response <- httpLbs (request {redirectCount = 0, cookieJar = Just cookie_jar}) manager
liftIO $ (responseBody response) @?= "key=value"
it "cookie jar is available in response" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/cookies"]
withManager $ \manager -> do
response <- httpLbs (request {cookieJar = Just def}) manager
liftIO $ (length $ destroyCookieJar $ responseCookieJar response) @?= 1
it "Cookie header isn't touched when no cookie jar supplied" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/dump_cookies"]
withManager $ \manager -> do
let request_headers = (mk "Cookie", "key2=value2") : filter ((/= mk "Cookie") . fst) (NHC.requestHeaders request)
response <- httpLbs (request {NHC.requestHeaders = request_headers, cookieJar = Nothing}) manager
liftIO $ (responseBody response) @?= "key2=value2"
it "Response cookie jar is nothing when request cookie jar is nothing" $ withApp app $ \port -> do
request <- parseUrl $ concat ["http://127.0.0.1:", show port, "/cookies"]
withManager $ \manager -> do
response <- httpLbs (request {cookieJar = Nothing}) manager
liftIO $ (responseCookieJar response) @?= def
describe "manager" $ do
it "closes all connections" $ withApp app $ \port1 -> withApp app $ \port2 -> do
clearSocketsList
withManager $ \manager -> do
let Just req1 = parseUrl $ "http://127.0.0.1:" ++ show port1
let Just req2 = parseUrl $ "http://127.0.0.1:" ++ show port2
_res1a <- http req1 manager
_res1b <- http req1 manager
_res2 <- http req2 manager
return ()
requireAllSocketsClosed
describe "DOS protection" $ do
it "overlong headers" $ overLongHeaders $ \port -> do
withManager $ \manager -> do
let Just req1 = parseUrl $ "http://127.0.0.1:" ++ show port
res1 <- try $ http req1 manager
case res1 of
Left e -> liftIO $ show (e :: SomeException) @?= show OverlongHeaders
_ -> error "Shouldn't have worked"
it "not overlong headers" $ notOverLongHeaders $ \port -> do
withManager $ \manager -> do
let Just req1 = parseUrl $ "http://127.0.0.1:" ++ show port
_ <- httpLbs req1 manager
return ()
describe "redirects" $ do
it "doesn't double escape" $ redir $ \port -> do
withManager $ \manager -> do
let go (encoded, final) = do
let Just req1 = parseUrl $ concat ["http://127.0.0.1:", show port, "/redir/", encoded]
res <- httpLbs req1 manager
liftIO $ Network.HTTP.Conduit.responseStatus res @?= status200
liftIO $ responseBody res @?= L.fromChunks [TE.encodeUtf8 final]
mapM_ go
[ ("hello world%2F", "hello world/")
, ("%D7%A9%D7%9C%D7%95%D7%9D", "שלום")
, ("simple", "simple")
, ("hello%20world", "hello world")
, ("hello%20world%3f%23", "hello world?#")
]
it "TooManyRedirects: redirect request body is preserved" $ withApp app $ \port -> do
let Just req = parseUrl $ concat ["http://127.0.0.1:", show port, "/infredir/0"]
let go (res, i) = liftIO $ responseBody res @?= (L8.pack $ show i)
E.catch (withManager $ \manager -> do
void $ http req{redirectCount=5} manager) $
\(TooManyRedirects redirs) -> mapM_ go (zip redirs [5,4..0 :: Int])
describe "chunked request body" $ do
it "works" $ echo $ \port -> do
withManager $ \manager -> do
let go bss = do
let Just req1 = parseUrl $ "http://127.0.0.1:" ++ show port
src = sourceList $ map fromByteString bss
lbs = L.fromChunks bss
res <- httpLbs req1
{ method = "POST"
, requestBody = RequestBodySourceChunked src
} manager
liftIO $ Network.HTTP.Conduit.responseStatus res @?= status200
let ts = S.concat . L.toChunks
liftIO $ ts (responseBody res) @?= ts lbs
mapM_ go
[ ["hello", "world"]
, replicate 500 "foo\003\n\r"
]
describe "no status message" $ do
it "works" $ noStatusMessage $ \port -> do
req <- parseUrl $ "http://127.0.0.1:" ++ show port
withManager $ \manager -> do
res <- httpLbs req manager
liftIO $ do
Network.HTTP.Conduit.responseStatus res `shouldBe` status200
responseBody res `shouldBe` "foo"
describe "response body too short" $ do
it "throws an exception" $ wrongLength $ \port -> do
req <- parseUrl $ "http://127.0.0.1:" ++ show port
withManager $ \manager -> do
eres <- try $ httpLbs req manager
liftIO $ either (Left . (show :: HttpException -> String)) (Right . id) eres
`shouldBe` Left (show $ ResponseBodyTooShort 50 18)
describe "redirect" $ do
it "ignores large response bodies" $ do
let app' port req =
case pathInfo req of
["foo"] -> return $ responseLBS status200 [] "Hello World!"
_ -> return $ ResponseSource status301 [("location", S8.pack $ "http://127.0.0.1:" ++ show port ++ "/foo")] $ forever $ yield $ Chunk $ fromByteString "hello\n"
withApp' app' $ \port -> withManager $ \manager -> do
req <- parseUrl $ "http://127.0.0.1:" ++ show port
res <- httpLbs req manager
liftIO $ do
Network.HTTP.Conduit.responseStatus res `shouldBe` status200
responseBody res `shouldBe` "Hello World!"
describe "multipart/form-data" $ do
it "formats correctly" $ do
let bd = "---------------------------190723902820679116301912680260"
(RequestBodySource _ src) <- renderParts bd
[partBS "email" ""
,partBS "parent_id" "70488"
,partBS "captcha" ""
,partBS "homeboard" "0chan.hk"
,partBS "text" $ TE.encodeUtf8 ">>72127\r\nМы работаем над этим."
,partFileSource "upload" "nyan.gif"
]
mfd <- fmap (toByteString . mconcat) $ runResourceT $ src $$ CL.consume
exam <- S.readFile "multipart-example.bin"
mfd @?= exam
describe "HTTP/1.0" $ do
it "BaseHTTP" $ do
let baseHTTP app' = do
_ <- appSource app' $$ await
yield "HTTP/1.0 200 OK\r\n\r\nThis is it!" $$ appSink app'
withCApp baseHTTP $ \port -> withManager $ \manager -> do
req <- parseUrl $ "http://127.0.0.1:" ++ show port
res1 <- httpLbs req manager
res2 <- httpLbs req manager
liftIO $ res1 @?= res2
describe "hostAddress" $ do
it "overrides host" $ withApp app $ \port -> do
entry <- Network.BSD.getHostByName "127.0.0.1"
req' <- parseUrl $ "http://example.com:" ++ show port
let req = req' { hostAddress = Just $ Network.BSD.hostAddress entry }
res <- withManager $ httpLbs req
responseBody res @?= "homepage for example.com"
describe "managerResponseTimeout" $ do
it "works" $ withApp app $ \port -> do
req1 <- parseUrl $ "http://localhost:" ++ show port
let req2 = req1 { responseTimeout = Just 5000000 }
withManagerSettings def { managerResponseTimeout = Just 1 } $ \man -> do
eres1 <- try $ httpLbs req1 man
case eres1 of
Left (FailedConnectionException _ _) -> return ()
_ -> error "Did not time out"
_ <- httpLbs req2 man
return ()
describe "delayed body" $ do
it "works" $ withApp app $ \port -> do
req <- parseUrl $ "http://localhost:" ++ show port ++ "/delayed"
withManager $ \man -> do
_ <- http req man
return ()
withCApp :: Data.Conduit.Network.Application IO -> (Int -> IO ()) -> IO ()
withCApp app' f = do
port <- getPort
baton <- newEmptyMVar
let start = putMVar baton ()
settings :: ServerSettings IO
settings = (serverSettings port HostAny :: ServerSettings IO) { serverAfterBind = const start }
bracket
(forkIO $ runTCPServer settings app' `onException` start)
killThread
(const $ takeMVar baton >> f port)
overLongHeaders :: (Int -> IO ()) -> IO ()
overLongHeaders =
withCApp $ \app' -> src $$ appSink app'
where
src = sourceList $ "HTTP/1.0 200 OK\r\nfoo: " : repeat "bar"
notOverLongHeaders :: (Int -> IO ()) -> IO ()
notOverLongHeaders = withCApp $ \app' -> do
appSource app' $$ CL.drop 1
src $$ appSink app'
where
src = sourceList $ [S.concat $ "HTTP/1.0 200 OK\r\nContent-Type: text/plain\r\nContent-Length: 16384\r\n\r\n" : ( take 16384 $ repeat "x")]
redir :: (Int -> IO ()) -> IO ()
redir =
withApp' redirApp
where
redirApp port req =
case pathInfo req of
["redir", foo] -> return $ responseLBS status301
[ ("Location", S8.pack (concat ["http://127.0.0.1:", show port, "/content/"]) `S.append` escape foo)
]
""
["content", foo] -> return $ responseLBS status200 [] $ L.fromChunks [TE.encodeUtf8 foo]
_ -> return $ responseLBS status404 [] ""
escape = S8.concatMap (S8.pack . encodeUrlChar) . TE.encodeUtf8
encodeUrlChar :: Char -> String
encodeUrlChar c
-- List of unreserved characters per RFC 3986
-- Gleaned from http://en.wikipedia.org/wiki/Percent-encoding
| 'A' <= c && c <= 'Z' = [c]
| 'a' <= c && c <= 'z' = [c]
| '0' <= c && c <= '9' = [c]
encodeUrlChar c@'-' = [c]
encodeUrlChar c@'_' = [c]
encodeUrlChar c@'.' = [c]
encodeUrlChar c@'~' = [c]
encodeUrlChar y =
let (a, c) = fromEnum y `divMod` 16
b = a `mod` 16
showHex' x
| x < 10 = toEnum $ x + (fromEnum '0')
| x < 16 = toEnum $ x - 10 + (fromEnum 'A')
| otherwise = error $ "Invalid argument to showHex: " ++ show x
in ['%', showHex' b, showHex' c]
echo :: (Int -> IO ()) -> IO ()
echo = withApp $ \req -> do
bss <- Wai.requestBody req $$ CL.consume
return $ responseLBS status200 [] $ L.fromChunks bss
noStatusMessage :: (Int -> IO ()) -> IO ()
noStatusMessage =
withCApp $ \app' -> src $$ appSink app'
where
src = yield "HTTP/1.0 200\r\nContent-Length: 3\r\n\r\nfoo: barbazbin"
wrongLength :: (Int -> IO ()) -> IO ()
wrongLength =
withCApp $ \app' -> do
_ <- appSource app' $$ await
src $$ appSink app'
where
src = do
yield "HTTP/1.0 200 OK\r\nContent-Length: 50\r\n\r\n"
yield "Not quite 50 bytes"