435 lines
17 KiB
Haskell
435 lines
17 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 TypeFamilies #-}
|
|
{-# LANGUAGE TypeOperators #-}
|
|
{-# LANGUAGE UndecidableInstances #-}
|
|
#if __GLASGOW_HASKELL__ >= 800
|
|
{-# OPTIONS_GHC -freduction-depth=100 #-}
|
|
#else
|
|
{-# OPTIONS_GHC -fcontext-stack=100 #-}
|
|
#endif
|
|
{-# 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 (throwE )
|
|
import Data.Aeson
|
|
import qualified Data.ByteString.Lazy as BS
|
|
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 qualified Network.HTTP.Client as C
|
|
import Network.HTTP.Media
|
|
import qualified Network.HTTP.Types as HTTP
|
|
import Network.Socket
|
|
import Network.Wai (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.Internal.Test.ComprehensiveAPI
|
|
import Servant.Client
|
|
import Servant.Server
|
|
import Servant.Server.Experimental.Auth
|
|
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
|
|
basicAuthSpec
|
|
genAuthSpec
|
|
|
|
-- * 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
|
|
:<|> "captureAll" :> CaptureAll "names" String :> Get '[JSON] [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
|
|
|
|
getGet :: SCR.ClientM Person
|
|
getDeleteEmpty :: SCR.ClientM NoContent
|
|
getCapture :: String -> SCR.ClientM Person
|
|
getCaptureAll :: [String] -> SCR.ClientM [Person]
|
|
getBody :: Person -> SCR.ClientM Person
|
|
getQueryParam :: Maybe String -> SCR.ClientM Person
|
|
getQueryParams :: [String] -> SCR.ClientM [Person]
|
|
getQueryFlag :: Bool -> SCR.ClientM Bool
|
|
getRawSuccess :: HTTP.Method
|
|
-> SCR.ClientM (Int, BS.ByteString, MediaType, [HTTP.Header], C.Response BS.ByteString)
|
|
getRawFailure :: HTTP.Method
|
|
-> SCR.ClientM (Int, BS.ByteString, MediaType, [HTTP.Header], C.Response BS.ByteString)
|
|
getMultiple :: String -> Maybe Int -> Bool -> [(String, [Rational])]
|
|
-> SCR.ClientM (String, Maybe Int, Bool, [(String, [Rational])])
|
|
getRespHeaders :: SCR.ClientM (Headers TestHeaders Bool)
|
|
getDeleteContentType :: SCR.ClientM NoContent
|
|
getGet
|
|
:<|> getDeleteEmpty
|
|
:<|> getCapture
|
|
:<|> getCaptureAll
|
|
:<|> getBody
|
|
:<|> getQueryParam
|
|
:<|> getQueryParams
|
|
:<|> getQueryFlag
|
|
:<|> getRawSuccess
|
|
:<|> getRawFailure
|
|
:<|> getMultiple
|
|
:<|> getRespHeaders
|
|
:<|> getDeleteContentType = client api
|
|
|
|
server :: Application
|
|
server = serve api (
|
|
return alice
|
|
:<|> return NoContent
|
|
:<|> (\ name -> return $ Person name 0)
|
|
:<|> (\ names -> return (zipWith Person names [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 HTTP.ok200 [] "rawSuccess")
|
|
:<|> (\ _request respond -> respond $ responseLBS HTTP.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 (
|
|
(\ _request respond -> respond $ responseLBS HTTP.ok200 [] "")
|
|
:<|> (\ _capture _request respond -> respond $ responseLBS HTTP.ok200 [("content-type", "application/json")] "")
|
|
:<|> (\_request respond -> respond $ responseLBS HTTP.ok200 [("content-type", "fooooo")] "")
|
|
)
|
|
|
|
-- * basic auth stuff
|
|
|
|
type BasicAuthAPI =
|
|
BasicAuth "foo-realm" () :> "private" :> "basic" :> Get '[JSON] Person
|
|
|
|
basicAuthAPI :: Proxy BasicAuthAPI
|
|
basicAuthAPI = Proxy
|
|
|
|
basicAuthHandler :: BasicAuthCheck ()
|
|
basicAuthHandler =
|
|
let check (BasicAuthData username password) =
|
|
if username == "servant" && password == "server"
|
|
then return (Authorized ())
|
|
else return Unauthorized
|
|
in BasicAuthCheck check
|
|
|
|
basicServerContext :: Context '[ BasicAuthCheck () ]
|
|
basicServerContext = basicAuthHandler :. EmptyContext
|
|
|
|
basicAuthServer :: Application
|
|
basicAuthServer = serveWithContext basicAuthAPI basicServerContext (const (return alice))
|
|
|
|
-- * general auth stuff
|
|
|
|
type GenAuthAPI =
|
|
AuthProtect "auth-tag" :> "private" :> "auth" :> Get '[JSON] Person
|
|
|
|
genAuthAPI :: Proxy GenAuthAPI
|
|
genAuthAPI = Proxy
|
|
|
|
type instance AuthServerData (AuthProtect "auth-tag") = ()
|
|
type instance AuthClientData (AuthProtect "auth-tag") = ()
|
|
|
|
genAuthHandler :: AuthHandler Request ()
|
|
genAuthHandler =
|
|
let handler req = case lookup "AuthHeader" (requestHeaders req) of
|
|
Nothing -> throwE (err401 { errBody = "Missing auth header" })
|
|
Just _ -> return ()
|
|
in mkAuthHandler handler
|
|
|
|
genAuthServerContext :: Context '[ AuthHandler Request () ]
|
|
genAuthServerContext = genAuthHandler :. EmptyContext
|
|
|
|
genAuthServer :: Application
|
|
genAuthServer = serveWithContext genAuthAPI genAuthServerContext (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
|
|
(left show <$> (runClientM getGet (ClientEnv manager baseUrl))) `shouldReturn` Right alice
|
|
|
|
describe "Servant.API.Delete" $ do
|
|
it "allows empty content type" $ \(_, baseUrl) -> do
|
|
(left show <$> (runClientM getDeleteEmpty (ClientEnv manager baseUrl))) `shouldReturn` Right NoContent
|
|
|
|
it "allows content type" $ \(_, baseUrl) -> do
|
|
(left show <$> (runClientM getDeleteContentType (ClientEnv manager baseUrl))) `shouldReturn` Right NoContent
|
|
|
|
it "Servant.API.Capture" $ \(_, baseUrl) -> do
|
|
(left show <$> (runClientM (getCapture "Paula") (ClientEnv manager baseUrl))) `shouldReturn` Right (Person "Paula" 0)
|
|
|
|
it "Servant.API.CaptureAll" $ \(_, baseUrl) -> do
|
|
let expected = [(Person "Paula" 0), (Person "Peta" 1)]
|
|
(left show <$> (runClientM (getCaptureAll ["Paula", "Peta"]) (ClientEnv manager baseUrl))) `shouldReturn` Right expected
|
|
|
|
it "Servant.API.ReqBody" $ \(_, baseUrl) -> do
|
|
let p = Person "Clara" 42
|
|
(left show <$> runClientM (getBody p) (ClientEnv manager baseUrl)) `shouldReturn` Right p
|
|
|
|
it "Servant.API.QueryParam" $ \(_, baseUrl) -> do
|
|
left show <$> runClientM (getQueryParam (Just "alice")) (ClientEnv manager baseUrl) `shouldReturn` Right alice
|
|
Left FailureResponse{..} <- runClientM (getQueryParam (Just "bob")) (ClientEnv manager baseUrl)
|
|
responseStatus `shouldBe` HTTP.Status 400 "bob not found"
|
|
|
|
it "Servant.API.QueryParam.QueryParams" $ \(_, baseUrl) -> do
|
|
(left show <$> runClientM (getQueryParams []) (ClientEnv manager baseUrl)) `shouldReturn` Right []
|
|
(left show <$> runClientM (getQueryParams ["alice", "bob"]) (ClientEnv manager baseUrl))
|
|
`shouldReturn` Right [Person "alice" 0, Person "bob" 1]
|
|
|
|
context "Servant.API.QueryParam.QueryFlag" $
|
|
forM_ [False, True] $ \ flag -> it (show flag) $ \(_, baseUrl) -> do
|
|
(left show <$> runClientM (getQueryFlag flag) (ClientEnv manager baseUrl)) `shouldReturn` Right flag
|
|
|
|
it "Servant.API.Raw on success" $ \(_, baseUrl) -> do
|
|
res <- runClientM (getRawSuccess HTTP.methodGet) (ClientEnv manager baseUrl)
|
|
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` HTTP.ok200
|
|
|
|
it "Servant.API.Raw should return a Left in case of failure" $ \(_, baseUrl) -> do
|
|
res <- runClientM (getRawFailure HTTP.methodGet) (ClientEnv manager baseUrl)
|
|
case res of
|
|
Right _ -> assertFailure "expected Left, but got Right"
|
|
Left e -> do
|
|
Servant.Client.responseStatus e `shouldBe` HTTP.status400
|
|
Servant.Client.responseBody e `shouldBe` "rawFailure"
|
|
|
|
it "Returns headers appropriately" $ \(_, baseUrl) -> do
|
|
res <- runClientM getRespHeaders (ClientEnv manager baseUrl)
|
|
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) ->
|
|
property $ forAllShrink pathGen shrink $ \(NonEmpty cap) num flag body ->
|
|
ioProperty $ do
|
|
result <- left show <$> runClientM (getMultiple cap num flag body) (ClientEnv manager baseUrl)
|
|
return $
|
|
result === Right (cap, num, flag, body)
|
|
|
|
|
|
wrappedApiSpec :: Spec
|
|
wrappedApiSpec = describe "error status codes" $ do
|
|
let serveW api = serve api $ 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 :: SCR.ClientM ()
|
|
getResponse = client api
|
|
Left FailureResponse{..} <- runClientM getResponse (ClientEnv manager baseUrl)
|
|
responseStatus `shouldBe` (HTTP.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
|
|
Left res <- runClientM getDeleteEmpty (ClientEnv manager baseUrl)
|
|
case res of
|
|
FailureResponse (HTTP.Status 404 "Not Found") _ _ -> return ()
|
|
_ -> fail $ "expected 404 response, but got " <> show res
|
|
|
|
it "reports DecodeFailure" $ \(_, baseUrl) -> do
|
|
let (_ :<|> _ :<|> getCapture :<|> _) = client api
|
|
Left res <- runClientM (getCapture "foo") (ClientEnv manager baseUrl)
|
|
case res of
|
|
DecodeFailure _ ("application/json") _ -> return ()
|
|
_ -> fail $ "expected DecodeFailure, but got " <> show res
|
|
|
|
it "reports ConnectionError" $ \_ -> do
|
|
let (getGetWrongHost :<|> _) = client api
|
|
Left res <- runClientM getGetWrongHost (ClientEnv manager (BaseUrl Http "127.0.0.1" 19872 ""))
|
|
case res of
|
|
ConnectionError _ -> return ()
|
|
_ -> fail $ "expected ConnectionError, but got " <> show res
|
|
|
|
it "reports UnsupportedContentType" $ \(_, baseUrl) -> do
|
|
let (getGet :<|> _ ) = client api
|
|
Left res <- runClientM getGet (ClientEnv manager baseUrl)
|
|
case res of
|
|
UnsupportedContentType ("application/octet-stream") _ -> return ()
|
|
_ -> fail $ "expected UnsupportedContentType, but got " <> show res
|
|
|
|
it "reports InvalidContentTypeHeader" $ \(_, baseUrl) -> do
|
|
let (_ :<|> _ :<|> _ :<|> _ :<|> getBody :<|> _) = client api
|
|
Left res <- runClientM (getBody alice) (ClientEnv manager baseUrl)
|
|
case res of
|
|
InvalidContentTypeHeader "fooooo" _ -> return ()
|
|
_ -> fail $ "expected InvalidContentTypeHeader, but got " <> show res
|
|
|
|
data WrappedApi where
|
|
WrappedApi :: (HasServer (api :: *) '[], Server api ~ Handler a,
|
|
HasClient api, Client api ~ SCR.ClientM ()) =>
|
|
Proxy api -> WrappedApi
|
|
|
|
basicAuthSpec :: Spec
|
|
basicAuthSpec = beforeAll (startWaiApp basicAuthServer) $ afterAll endWaiApp $ do
|
|
context "Authentication works when requests are properly authenticated" $ do
|
|
|
|
it "Authenticates a BasicAuth protected server appropriately" $ \(_,baseUrl) -> do
|
|
let getBasic = client basicAuthAPI
|
|
let basicAuthData = BasicAuthData "servant" "server"
|
|
(left show <$> runClientM (getBasic basicAuthData) (ClientEnv manager baseUrl)) `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 basicAuthAPI
|
|
let basicAuthData = BasicAuthData "not" "password"
|
|
Left FailureResponse{..} <- runClientM (getBasic basicAuthData) (ClientEnv manager baseUrl)
|
|
responseStatus `shouldBe` HTTP.Status 403 "Forbidden"
|
|
|
|
genAuthSpec :: Spec
|
|
genAuthSpec = beforeAll (startWaiApp genAuthServer) $ afterAll endWaiApp $ do
|
|
context "Authentication works when requests are properly authenticated" $ do
|
|
|
|
it "Authenticates a AuthProtect protected server appropriately" $ \(_, baseUrl) -> do
|
|
let getProtected = client genAuthAPI
|
|
let authRequest = mkAuthenticateReq () (\_ req -> SCR.addHeader "AuthHeader" ("cool" :: String) req)
|
|
(left show <$> runClientM (getProtected authRequest) (ClientEnv manager baseUrl)) `shouldReturn` Right alice
|
|
|
|
context "Authentication is rejected when requests are not authenticated properly" $ do
|
|
|
|
it "Authenticates a AuthProtect protected server appropriately" $ \(_, baseUrl) -> do
|
|
let getProtected = client genAuthAPI
|
|
let authRequest = mkAuthenticateReq () (\_ req -> SCR.addHeader "Wrong" ("header" :: String) req)
|
|
Left FailureResponse{..} <- runClientM (getProtected authRequest) (ClientEnv manager baseUrl)
|
|
responseStatus `shouldBe` (HTTP.Status 401 "Unauthorized")
|
|
|
|
-- * utils
|
|
|
|
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]
|