419 lines
16 KiB
Haskell
419 lines
16 KiB
Haskell
{-# LANGUAGE CPP #-}
|
|
{-# LANGUAGE ConstraintKinds #-}
|
|
{-# LANGUAGE DataKinds #-}
|
|
{-# LANGUAGE DeriveGeneric #-}
|
|
{-# LANGUAGE FlexibleContexts #-}
|
|
{-# LANGUAGE FlexibleInstances #-}
|
|
{-# LANGUAGE FunctionalDependencies #-}
|
|
{-# LANGUAGE GADTs #-}
|
|
{-# LANGUAGE MultiParamTypeClasses #-}
|
|
{-# LANGUAGE OverloadedStrings #-}
|
|
{-# LANGUAGE PolyKinds #-}
|
|
{-# LANGUAGE RecordWildCards #-}
|
|
{-# LANGUAGE StandaloneDeriving #-}
|
|
{-# LANGUAGE ScopedTypeVariables #-}
|
|
{-# LANGUAGE TypeOperators #-}
|
|
{-# LANGUAGE TypeFamilies #-}
|
|
{-# LANGUAGE UndecidableInstances #-}
|
|
{-# OPTIONS_GHC -fcontext-stack=100 #-}
|
|
{-# OPTIONS_GHC -fno-warn-orphans #-}
|
|
{-# OPTIONS_GHC -fno-warn-name-shadowing #-}
|
|
|
|
#include "overlapping-compat.h"
|
|
module Servant.ClientSpec where
|
|
|
|
#if !MIN_VERSION_base(4,8,0)
|
|
import Control.Applicative ((<$>))
|
|
#endif
|
|
import Control.Arrow (left)
|
|
import Control.Concurrent (forkIO, killThread, ThreadId)
|
|
import Control.Exception (bracket)
|
|
import Control.Monad.Trans.Except (ExceptT, runExceptT, throwE)
|
|
import Data.Aeson hiding ((.:))
|
|
import Data.Char (chr, isPrint)
|
|
import Data.Foldable (forM_)
|
|
import Data.Monoid hiding (getLast)
|
|
import Data.Proxy
|
|
import qualified Data.Text as T
|
|
import GHC.Generics (Generic)
|
|
import GHC.TypeLits
|
|
import qualified Network.HTTP.Client as C
|
|
import Network.HTTP.Media
|
|
import Network.HTTP.Types (Status (..), badRequest400,
|
|
methodGet, ok200, status400)
|
|
import Network.Socket
|
|
import Network.Wai (Application, Request, requestHeaders, responseLBS)
|
|
import Network.Wai.Handler.Warp
|
|
import System.IO.Unsafe (unsafePerformIO)
|
|
import Test.Hspec
|
|
import Test.Hspec.QuickCheck
|
|
import Test.HUnit
|
|
import Test.QuickCheck
|
|
|
|
import Servant.API
|
|
import Servant.API.Auth (BasicAuthData(BasicAuthData))
|
|
import Servant.API.Internal.Test.ComprehensiveAPI
|
|
import Servant.Client
|
|
import Servant.Server
|
|
import qualified Servant.Common.Req as SCR
|
|
|
|
-- This declaration simply checks that all instances are in place.
|
|
_ = client comprehensiveAPI
|
|
|
|
spec :: Spec
|
|
spec = describe "Servant.Client" $ do
|
|
sucessSpec
|
|
failSpec
|
|
wrappedApiSpec
|
|
authSpec
|
|
|
|
-- * test data types
|
|
|
|
data Person = Person {
|
|
name :: String,
|
|
age :: Integer
|
|
}
|
|
deriving (Eq, Show, Generic)
|
|
|
|
instance ToJSON Person
|
|
instance FromJSON Person
|
|
|
|
instance ToFormUrlEncoded Person where
|
|
toFormUrlEncoded Person{..} =
|
|
[("name", T.pack name), ("age", T.pack (show age))]
|
|
|
|
lookupEither :: (Show a, Eq a) => a -> [(a,b)] -> Either String b
|
|
lookupEither x xs = do
|
|
maybe (Left $ "could not find key " <> show x) return $ lookup x xs
|
|
|
|
instance FromFormUrlEncoded Person where
|
|
fromFormUrlEncoded xs = do
|
|
n <- lookupEither "name" xs
|
|
a <- lookupEither "age" xs
|
|
return $ Person (T.unpack n) (read $ T.unpack a)
|
|
|
|
alice :: Person
|
|
alice = Person "Alice" 42
|
|
|
|
type TestHeaders = '[Header "X-Example1" Int, Header "X-Example2" String]
|
|
|
|
type Api =
|
|
"get" :> Get '[JSON] Person
|
|
:<|> "deleteEmpty" :> DeleteNoContent '[JSON] NoContent
|
|
:<|> "capture" :> Capture "name" String :> Get '[JSON,FormUrlEncoded] Person
|
|
:<|> "body" :> ReqBody '[FormUrlEncoded,JSON] Person :> Post '[JSON] Person
|
|
:<|> "param" :> QueryParam "name" String :> Get '[FormUrlEncoded,JSON] Person
|
|
:<|> "params" :> QueryParams "names" String :> Get '[JSON] [Person]
|
|
:<|> "flag" :> QueryFlag "flag" :> Get '[JSON] Bool
|
|
:<|> "rawSuccess" :> Raw
|
|
:<|> "rawFailure" :> Raw
|
|
:<|> "multiple" :>
|
|
Capture "first" String :>
|
|
QueryParam "second" Int :>
|
|
QueryFlag "third" :>
|
|
ReqBody '[JSON] [(String, [Rational])] :>
|
|
Get '[JSON] (String, Maybe Int, Bool, [(String, [Rational])])
|
|
:<|> "headers" :> Get '[JSON] (Headers TestHeaders Bool)
|
|
:<|> "deleteContentType" :> DeleteNoContent '[JSON] NoContent
|
|
|
|
api :: Proxy Api
|
|
api = Proxy
|
|
|
|
|
|
server :: Application
|
|
server = serve api EmptyConfig (
|
|
return alice
|
|
:<|> return NoContent
|
|
:<|> (\ name -> return $ Person name 0)
|
|
:<|> return
|
|
:<|> (\ name -> case name of
|
|
Just "alice" -> return alice
|
|
Just n -> throwE $ ServantErr 400 (n ++ " not found") "" []
|
|
Nothing -> throwE $ ServantErr 400 "missing parameter" "" [])
|
|
:<|> (\ names -> return (zipWith Person names [0..]))
|
|
:<|> return
|
|
:<|> (\ _request respond -> respond $ responseLBS ok200 [] "rawSuccess")
|
|
:<|> (\ _request respond -> respond $ responseLBS badRequest400 [] "rawFailure")
|
|
:<|> (\ a b c d -> return (a, b, c, d))
|
|
:<|> (return $ addHeader 1729 $ addHeader "eg2" True)
|
|
:<|> return NoContent
|
|
)
|
|
|
|
|
|
type FailApi =
|
|
"get" :> Raw
|
|
:<|> "capture" :> Capture "name" String :> Raw
|
|
:<|> "body" :> Raw
|
|
failApi :: Proxy FailApi
|
|
failApi = Proxy
|
|
|
|
failServer :: Application
|
|
failServer = serve failApi EmptyConfig (
|
|
(\ _request respond -> respond $ responseLBS ok200 [] "")
|
|
:<|> (\ _capture _request respond -> respond $ responseLBS ok200 [("content-type", "application/json")] "")
|
|
:<|> (\_request respond -> respond $ responseLBS ok200 [("content-type", "fooooo")] "")
|
|
)
|
|
|
|
-- auth stuff
|
|
type AuthAPI =
|
|
BasicAuth "foo-realm" :> "private" :> "basic" :> Get '[JSON] Person
|
|
:<|> AuthProtect "auth-tag" :> "private" :> "auth" :> Get '[JSON] Person
|
|
|
|
authAPI :: Proxy AuthAPI
|
|
authAPI = Proxy
|
|
|
|
type instance AuthReturnType (BasicAuth "foo-realm") = ()
|
|
type instance AuthReturnType (AuthProtect "auth-tag") = ()
|
|
type instance AuthClientData (AuthProtect "auth-tag") = ()
|
|
|
|
basicAuthHandler :: BasicAuthCheck ()
|
|
basicAuthHandler =
|
|
let check (BasicAuthData username password) =
|
|
if username == "servant" && password == "server"
|
|
then return (Authorized ())
|
|
else return Unauthorized
|
|
in BasicAuthCheck check
|
|
|
|
authHandler :: AuthHandler Request ()
|
|
authHandler =
|
|
let handler req = case lookup "AuthHeader" (requestHeaders req) of
|
|
Nothing -> throwE (err401 { errBody = "Missing auth header"
|
|
, errReasonPhrase = "denied!"
|
|
})
|
|
Just _ -> return ()
|
|
in mkAuthHandler handler
|
|
|
|
serverConfig :: Config '[ BasicAuthCheck ()
|
|
, AuthHandler Request ()
|
|
]
|
|
serverConfig = basicAuthHandler :. authHandler :. EmptyConfig
|
|
|
|
authServer :: Application
|
|
authServer = serve authAPI serverConfig (const (return alice) :<|> const (return alice))
|
|
|
|
{-
|
|
-}
|
|
|
|
{-# NOINLINE manager #-}
|
|
manager :: C.Manager
|
|
manager = unsafePerformIO $ C.newManager C.defaultManagerSettings
|
|
|
|
sucessSpec :: Spec
|
|
sucessSpec = beforeAll (startWaiApp server) $ afterAll endWaiApp $ do
|
|
|
|
it "Servant.API.Get" $ \(_, baseUrl) -> do
|
|
let getGet = getNth (Proxy :: Proxy 0) $ client api baseUrl manager
|
|
(left show <$> runExceptT getGet) `shouldReturn` Right alice
|
|
|
|
describe "Servant.API.Delete" $ do
|
|
it "allows empty content type" $ \(_, baseUrl) -> do
|
|
let getDeleteEmpty = getNth (Proxy :: Proxy 1) $ client api baseUrl manager
|
|
(left show <$> runExceptT getDeleteEmpty) `shouldReturn` Right NoContent
|
|
|
|
it "allows content type" $ \(_, baseUrl) -> do
|
|
let getDeleteContentType = getLast $ client api baseUrl manager
|
|
(left show <$> runExceptT getDeleteContentType) `shouldReturn` Right NoContent
|
|
|
|
it "Servant.API.Capture" $ \(_, baseUrl) -> do
|
|
let getCapture = getNth (Proxy :: Proxy 2) $ client api baseUrl manager
|
|
(left show <$> runExceptT (getCapture "Paula")) `shouldReturn` Right (Person "Paula" 0)
|
|
|
|
it "Servant.API.ReqBody" $ \(_, baseUrl) -> do
|
|
let p = Person "Clara" 42
|
|
getBody = getNth (Proxy :: Proxy 3) $ client api baseUrl manager
|
|
(left show <$> runExceptT (getBody p)) `shouldReturn` Right p
|
|
|
|
it "Servant.API.QueryParam" $ \(_, baseUrl) -> do
|
|
let getQueryParam = getNth (Proxy :: Proxy 4) $ client api baseUrl manager
|
|
left show <$> runExceptT (getQueryParam (Just "alice")) `shouldReturn` Right alice
|
|
Left FailureResponse{..} <- runExceptT (getQueryParam (Just "bob"))
|
|
responseStatus `shouldBe` Status 400 "bob not found"
|
|
|
|
it "Servant.API.QueryParam.QueryParams" $ \(_, baseUrl) -> do
|
|
let getQueryParams = getNth (Proxy :: Proxy 5) $ client api baseUrl manager
|
|
(left show <$> runExceptT (getQueryParams [])) `shouldReturn` Right []
|
|
(left show <$> runExceptT (getQueryParams ["alice", "bob"]))
|
|
`shouldReturn` Right [Person "alice" 0, Person "bob" 1]
|
|
|
|
context "Servant.API.QueryParam.QueryFlag" $
|
|
forM_ [False, True] $ \ flag -> it (show flag) $ \(_, baseUrl) -> do
|
|
let getQueryFlag = getNth (Proxy :: Proxy 6) $ client api baseUrl manager
|
|
(left show <$> runExceptT (getQueryFlag flag)) `shouldReturn` Right flag
|
|
|
|
it "Servant.API.Raw on success" $ \(_, baseUrl) -> do
|
|
let getRawSuccess = getNth (Proxy :: Proxy 7) $ client api baseUrl manager
|
|
res <- runExceptT (getRawSuccess methodGet)
|
|
case res of
|
|
Left e -> assertFailure $ show e
|
|
Right (code, body, ct, _, response) -> do
|
|
(code, body, ct) `shouldBe` (200, "rawSuccess", "application"//"octet-stream")
|
|
C.responseBody response `shouldBe` body
|
|
C.responseStatus response `shouldBe` ok200
|
|
|
|
it "Servant.API.Raw should return a Left in case of failure" $ \(_, baseUrl) -> do
|
|
let getRawFailure = getNth (Proxy :: Proxy 8) $ client api baseUrl manager
|
|
res <- runExceptT (getRawFailure methodGet)
|
|
case res of
|
|
Right _ -> assertFailure "expected Left, but got Right"
|
|
Left e -> do
|
|
Servant.Client.responseStatus e `shouldBe` status400
|
|
Servant.Client.responseBody e `shouldBe` "rawFailure"
|
|
|
|
it "Returns headers appropriately" $ \(_, baseUrl) -> do
|
|
let getRespHeaders = getNth (Proxy :: Proxy 10) $ client api baseUrl manager
|
|
res <- runExceptT getRespHeaders
|
|
case res of
|
|
Left e -> assertFailure $ show e
|
|
Right val -> getHeaders val `shouldBe` [("X-Example1", "1729"), ("X-Example2", "eg2")]
|
|
|
|
modifyMaxSuccess (const 20) $ do
|
|
it "works for a combination of Capture, QueryParam, QueryFlag and ReqBody" $ \(_, baseUrl) ->
|
|
let getMultiple = getNth (Proxy :: Proxy 9) $ client api baseUrl manager
|
|
in property $ forAllShrink pathGen shrink $ \(NonEmpty cap) num flag body ->
|
|
ioProperty $ do
|
|
result <- left show <$> runExceptT (getMultiple cap num flag body)
|
|
return $
|
|
result === Right (cap, num, flag, body)
|
|
|
|
|
|
wrappedApiSpec :: Spec
|
|
wrappedApiSpec = describe "error status codes" $ do
|
|
let serveW api = serve api EmptyConfig $ throwE $ ServantErr 500 "error message" "" []
|
|
context "are correctly handled by the client" $
|
|
let test :: (WrappedApi, String) -> Spec
|
|
test (WrappedApi api, desc) =
|
|
it desc $ bracket (startWaiApp $ serveW api) endWaiApp $ \(_, baseUrl) -> do
|
|
let getResponse :: ExceptT ServantError IO ()
|
|
getResponse = client api baseUrl manager
|
|
Left FailureResponse{..} <- runExceptT getResponse
|
|
responseStatus `shouldBe` (Status 500 "error message")
|
|
in mapM_ test $
|
|
(WrappedApi (Proxy :: Proxy (Delete '[JSON] ())), "Delete") :
|
|
(WrappedApi (Proxy :: Proxy (Get '[JSON] ())), "Get") :
|
|
(WrappedApi (Proxy :: Proxy (Post '[JSON] ())), "Post") :
|
|
(WrappedApi (Proxy :: Proxy (Put '[JSON] ())), "Put") :
|
|
[]
|
|
|
|
failSpec :: Spec
|
|
failSpec = beforeAll (startWaiApp failServer) $ afterAll endWaiApp $ do
|
|
|
|
context "client returns errors appropriately" $ do
|
|
it "reports FailureResponse" $ \(_, baseUrl) -> do
|
|
let (_ :<|> getDeleteEmpty :<|> _) = client api baseUrl manager
|
|
Left res <- runExceptT getDeleteEmpty
|
|
case res of
|
|
FailureResponse (Status 404 "Not Found") _ _ -> return ()
|
|
_ -> fail $ "expected 404 response, but got " <> show res
|
|
|
|
it "reports DecodeFailure" $ \(_, baseUrl) -> do
|
|
let (_ :<|> _ :<|> getCapture :<|> _) = client api baseUrl manager
|
|
Left res <- runExceptT (getCapture "foo")
|
|
case res of
|
|
DecodeFailure _ ("application/json") _ -> return ()
|
|
_ -> fail $ "expected DecodeFailure, but got " <> show res
|
|
|
|
it "reports ConnectionError" $ \_ -> do
|
|
let (getGetWrongHost :<|> _) = client api (BaseUrl Http "127.0.0.1" 19872 "") manager
|
|
Left res <- runExceptT getGetWrongHost
|
|
case res of
|
|
ConnectionError _ -> return ()
|
|
_ -> fail $ "expected ConnectionError, but got " <> show res
|
|
|
|
it "reports UnsupportedContentType" $ \(_, baseUrl) -> do
|
|
let (getGet :<|> _ ) = client api baseUrl manager
|
|
Left res <- runExceptT getGet
|
|
case res of
|
|
UnsupportedContentType ("application/octet-stream") _ -> return ()
|
|
_ -> fail $ "expected UnsupportedContentType, but got " <> show res
|
|
|
|
it "reports InvalidContentTypeHeader" $ \(_, baseUrl) -> do
|
|
let (_ :<|> _ :<|> _ :<|> getBody :<|> _) = client api baseUrl manager
|
|
Left res <- runExceptT (getBody alice)
|
|
case res of
|
|
InvalidContentTypeHeader "fooooo" _ -> return ()
|
|
_ -> fail $ "expected InvalidContentTypeHeader, but got " <> show res
|
|
|
|
authSpec :: Spec
|
|
authSpec = beforeAll (startWaiApp authServer) $ afterAll endWaiApp $ do
|
|
context "Authentication works when requests are properly authenticated" $ do
|
|
|
|
it "Authenticates a BasicAuth protected server appropriately" $ \(_,baseUrl) -> do
|
|
let (getBasic :<|> _) = client authAPI baseUrl manager
|
|
let authData = BasicAuthData "servant" "server"
|
|
(left show <$> runExceptT (getBasic authData)) `shouldReturn` Right alice
|
|
|
|
it "Authenticates a AuthProtect protected server appropriately" $ \(_, baseUrl) -> do
|
|
let (_ :<|> getProtected) = client authAPI baseUrl manager
|
|
let authRequest = mkAuthenticateReq () (\_ req -> SCR.addHeader "AuthHeader" ("cool" :: String) req)
|
|
(left show <$> runExceptT (getProtected authRequest)) `shouldReturn` Right alice
|
|
|
|
context "Authentication is rejected when requests are not authenticated properly" $ do
|
|
|
|
it "Authenticates a BasicAuth protected server appropriately" $ \(_,baseUrl) -> do
|
|
let (getBasic :<|> _) = client authAPI baseUrl manager
|
|
let authData = BasicAuthData "not" "password"
|
|
Left FailureResponse{..} <- runExceptT (getBasic authData)
|
|
responseStatus `shouldBe` Status 403 "Forbidden"
|
|
|
|
it "Authenticates a AuthProtect protected server appropriately" $ \(_, baseUrl) -> do
|
|
let (_ :<|> getProtected) = client authAPI baseUrl manager
|
|
let authRequest = mkAuthenticateReq () (\_ req -> SCR.addHeader "Wrong" ("header" :: String) req)
|
|
Left FailureResponse{..} <- runExceptT (getProtected authRequest)
|
|
responseStatus `shouldBe` (Status 401 "denied")
|
|
|
|
-- * utils
|
|
|
|
data WrappedApi where
|
|
WrappedApi :: (HasServer (api :: *) '[], Server api ~ ExceptT ServantErr IO a,
|
|
HasClient api, Client api ~ ExceptT ServantError IO ()) =>
|
|
Proxy api -> WrappedApi
|
|
|
|
startWaiApp :: Application -> IO (ThreadId, BaseUrl)
|
|
startWaiApp app = do
|
|
(port, socket) <- openTestSocket
|
|
let settings = setPort port $ defaultSettings
|
|
thread <- forkIO $ runSettingsSocket settings socket app
|
|
return (thread, BaseUrl Http "localhost" port "")
|
|
|
|
|
|
endWaiApp :: (ThreadId, BaseUrl) -> IO ()
|
|
endWaiApp (thread, _) = killThread thread
|
|
|
|
openTestSocket :: IO (Port, Socket)
|
|
openTestSocket = do
|
|
s <- socket AF_INET Stream defaultProtocol
|
|
localhost <- inet_addr "127.0.0.1"
|
|
bind s (SockAddrInet aNY_PORT localhost)
|
|
listen s 1
|
|
port <- socketPort s
|
|
return (fromIntegral port, s)
|
|
|
|
pathGen :: Gen (NonEmptyList Char)
|
|
pathGen = fmap NonEmpty path
|
|
where
|
|
path = listOf1 $ elements $
|
|
filter (not . (`elem` ("?%[]/#;" :: String))) $
|
|
filter isPrint $
|
|
map chr [0..127]
|
|
|
|
class GetNth (n :: Nat) a b | n a -> b where
|
|
getNth :: Proxy n -> a -> b
|
|
|
|
instance OVERLAPPING_
|
|
GetNth 0 (x :<|> y) x where
|
|
getNth _ (x :<|> _) = x
|
|
|
|
instance OVERLAPPING_
|
|
(GetNth (n - 1) x y) => GetNth n (a :<|> x) y where
|
|
getNth _ (_ :<|> x) = getNth (Proxy :: Proxy (n - 1)) x
|
|
|
|
class GetLast a b | a -> b where
|
|
getLast :: a -> b
|
|
|
|
instance OVERLAPPING_
|
|
(GetLast b c) => GetLast (a :<|> b) c where
|
|
getLast (_ :<|> b) = getLast b
|
|
|
|
instance OVERLAPPING_
|
|
GetLast a a where
|
|
getLast a = a
|