1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
|
{-# LANGUAGE BangPatterns #-}
{-# LANGUAGE OverloadedStrings #-}
module Test.Common.TestHandler (testHandler) where
------------------------------------------------------------------------------
import Control.Concurrent (threadDelay)
import Control.Exception (throwIO)
import Control.Monad (liftM)
import Control.Monad.IO.Class (MonadIO (liftIO))
import Data.ByteString.Builder (Builder, byteString)
import Data.ByteString.Builder.Extra (flush)
import qualified Data.ByteString.Char8 as S
import qualified Data.ByteString.Lazy.Char8 as L
import Data.List (sort)
import qualified Data.Map as Map
import Data.Maybe (fromMaybe)
import Data.Monoid (Monoid (mappend, mconcat, mempty))
------------------------------------------------------------------------------
import Snap.Core (Request (rqParams, rqURI), Snap, getParam, getRequest, logError, modifyResponse, redirect, route, rqClientAddr, rqClientPort, setContentLength, setContentType, setHeader, setResponseBody, setResponseCode, setTimeout, transformRequestBody, writeBS, writeBuilder, writeLBS)
import Snap.Internal.Debug ()
import Snap.Util.FileServe (serveDirectory)
import Snap.Util.FileUploads (PartInfo (partContentType, partFileName), allowWithMaximumSize, defaultUploadPolicy, disallow, handleFileUploads)
import Snap.Util.GZip (noCompression, withCompression)
import System.Directory (createDirectoryIfMissing)
import System.IO.Streams (OutputStream)
import qualified System.IO.Streams as Streams
import Test.Common.Rot13 (rot13)
------------------------------------------------------------------------------
-- timeout handling
------------------------------------------------------------------------------
timeoutTickleHandler :: Snap ()
timeoutTickleHandler = do
noCompression -- FIXME: remove this when zlib-bindings and
-- zlib-enumerator support gzip stream flushing
modifyResponse $ setResponseBody (trickleOutput 10)
. setContentType "text/plain"
setTimeout 2
badTimeoutTickleHandler :: Snap ()
badTimeoutTickleHandler = do
noCompression -- FIXME: remove this when zlib-bindings and
-- zlib-enumerator support gzip stream flushing
modifyResponse $ setResponseBody (trickleOutput 10)
. setContentType "text/plain"
setTimeout 2
trickleOutput :: Int -> OutputStream Builder -> IO (OutputStream Builder)
trickleOutput n os = do
Streams.fromList dots >>= Streams.mapM f >>= Streams.supplyTo os
return os
where
dots = replicate n ".\n"
f x = threadDelay 1000000 >> return (byteString x `mappend` flush)
------------------------------------------------------------------------------
pongHandler :: Snap ()
pongHandler = modifyResponse $
setResponseBody body .
setContentType "text/plain" .
setContentLength 4
where
body os = do Streams.write (Just $ byteString "PONG") os
return os
echoUriHandler :: Snap ()
echoUriHandler = do
req <- getRequest
writeBS $ rqURI req
echoHandler :: Snap ()
echoHandler = transformRequestBody return
rot13Handler :: Snap ()
rot13Handler = transformRequestBody (Streams.map rot13)
bigResponseHandler :: Snap ()
bigResponseHandler = do
let sz = 4000000
let s = L.take sz $ L.cycle $ L.fromChunks [S.replicate 400000 '.']
modifyResponse $ setContentLength $ fromIntegral sz
writeLBS s
responseHandler :: Snap ()
responseHandler = do
!code <- liftM (read . S.unpack . fromMaybe "503") $ getParam "code"
modifyResponse $ setResponseCode code
writeBS $ S.pack $ show code
uploadForm :: Snap ()
uploadForm = do
modifyResponse $ setContentType "text/html"
writeBS form
where
form = S.concat [ "<html><head><title>Upload a file</title></head><body>\n"
, "<p>Upload some <code>text/plain</code> files:</p>\n"
, "<form method='post' "
, "enctype='multipart/form-data' "
, "action='/upload/handle'>\n"
, "<input type='file' "
, "accept='text/plain' "
, "multiple='true' "
, "name='file'></input>\n"
, "<input type='submit' name='Submit'></input>\n"
, "</form></body></html>" ]
uploadHandler :: Snap ()
uploadHandler = do
logError "uploadHandler"
liftIO $ createDirectoryIfMissing True tmpdir
files <- handleFileUploads tmpdir defaultUploadPolicy partPolicy hndl
let m = sort files
params <- liftM (Prelude.map (\(a,b) -> (a,S.concat b)) .
Map.toAscList .
rqParams) getRequest
modifyResponse $ setContentType "text/plain"
writeBuilder $ buildRqParams params `mappend` buildFiles m
where
f p = fromMaybe "-" $ partFileName p
hndl _ (Left e) = throwIO e
hndl partInfo (Right fp) = do
!c <- liftIO $ S.readFile fp
return $! (f partInfo, c)
builder _ [] = mempty
builder ty ((k,v):xs) =
mconcat [ byteString ty
, byteString ":\n"
, byteString k
, byteString "\nValue:\n"
, byteString v
, byteString "\n\n"
, builder ty xs ]
buildRqParams = builder "Param"
buildFiles = builder "File"
tmpdir = "dist/filetmp"
partPolicy partInfo = if partContentType partInfo == "text/plain"
then allowWithMaximumSize 200000
else disallow
serverHeaderHandler :: Snap ()
serverHeaderHandler = modifyResponse $ setHeader "Server" "foo"
chunkedResponse :: Snap ()
chunkedResponse = writeBS "chunked"
remoteAddrPort :: Snap ()
remoteAddrPort = do
rq <- getRequest
let addr = rqClientAddr rq
let port = rqClientPort rq
let out = S.concat [ addr, ":", S.pack (show port) ]
modifyResponse $ setContentLength $ fromIntegral $ S.length out
writeBS out
testHandler :: Snap ()
testHandler = withCompression $
route [ ("pong" , pongHandler )
, ("redirect" , redirect "/pong" )
, ("echo" , echoHandler )
, ("rot13" , rot13Handler )
, ("echoUri" , echoUriHandler )
, ("remoteAddrPort" , remoteAddrPort )
, ("fileserve" , noCompression >>
serveDirectory "testserver/static")
, ("bigresponse" , bigResponseHandler )
, ("respcode/:code" , responseHandler )
, ("upload/form" , uploadForm )
, ("upload/handle" , uploadHandler )
, ("timeout/tickle" , timeoutTickleHandler )
, ("timeout/badtickle" , badTimeoutTickleHandler )
, ("server-header" , serverHeaderHandler )
, ("chunked" , chunkedResponse )
]
|
