| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Happstack.Server.Types
- data Request = Request {}
- data Response
- newtype RqBody = Body {
- unBody :: ByteString
- data Input = Input {}
- data HeaderPair = HeaderPair {
- hName :: ByteString
- hValue :: [ByteString]
- takeRequestBody :: MonadIO m => Request -> m (Maybe RqBody)
- readInputsBody :: Request -> IO (Maybe [(String, Input)])
- rqURL :: Request -> String
- mkHeaders :: [(String, String)] -> Headers
- getHeader :: HasHeaders r => String -> r -> Maybe ByteString
- getHeaderBS :: HasHeaders r => ByteString -> r -> Maybe ByteString
- getHeaderUnsafe :: HasHeaders r => ByteString -> r -> Maybe ByteString
- hasHeader :: HasHeaders r => String -> r -> Bool
- hasHeaderBS :: HasHeaders r => ByteString -> r -> Bool
- hasHeaderUnsafe :: HasHeaders r => ByteString -> r -> Bool
- setHeader :: HasHeaders r => String -> String -> r -> r
- setHeaderBS :: HasHeaders r => ByteString -> ByteString -> r -> r
- setHeaderUnsafe :: HasHeaders r => ByteString -> HeaderPair -> r -> r
- addHeader :: HasHeaders r => String -> String -> r -> r
- addHeaderBS :: HasHeaders r => ByteString -> ByteString -> r -> r
- addHeaderUnsafe :: HasHeaders r => ByteString -> HeaderPair -> r -> r
- setRsCode :: Monad m => Int -> Response -> m Response
- type LogAccess time = String -> String -> time -> String -> Int -> Integer -> String -> String -> IO ()
- logMAccess :: forall t. FormatTime t => LogAccess t
- data Conf = Conf {}
- nullConf :: Conf
- result :: Int -> String -> Response
- resultBS :: Int -> ByteString -> Response
- redirect :: ToSURI s => Int -> s -> Response -> Response
- isHTTP1_0 :: Request -> Bool
- isHTTP1_1 :: Request -> Bool
- data RsFlags = RsFlags {}
- nullRsFlags :: RsFlags
- contentLength :: Response -> Response
- chunked :: Response -> Response
- noContentLength :: Response -> Response
- data HttpVersion = HttpVersion Int Int
- data Length
- data Method
- type Headers = Map ByteString HeaderPair
- continueHTTP :: Request -> Response -> Bool
- type Host = (String, Int)
- data ContentType = ContentType {}
- readDec' :: (Num a, Eq a) => String -> a
- fromReadS :: [(a, String)] -> Maybe a
- class FromReqURI a where
Documentation
an HTTP request
Constructors
| Request | |
Fields
| |
The body of an HTTP Request
Constructors
| Body | |
Fields
| |
a value extract from the QUERY_STRING or Request body
If the input value was a file, then it will be saved to a temporary file on disk and inputValue will contain Left pathToTempFile.
Constructors
| Input | |
Fields | |
data HeaderPair Source #
an HTTP header
Constructors
| HeaderPair | |
Fields
| |
Instances
takeRequestBody :: MonadIO m => Request -> m (Maybe RqBody) Source #
get the request body from the Request and replace it with Nothing
IMPORTANT: You can really only call this function once. Subsequent
calls will return Nothing.
readInputsBody :: Request -> IO (Maybe [(String, Input)]) Source #
read the request body inputs
This will only work if the body inputs have already been decoded. Otherwise it will return Nothing.
rqURL :: Request -> String Source #
Converts a Request into a String representing the corresponding URL
mkHeaders :: [(String, String)] -> Headers Source #
Takes a list of (key,val) pairs and converts it into Headers. The keys will be converted to lowercase
getHeader :: HasHeaders r => String -> r -> Maybe ByteString Source #
Lookup header value. Key is case-insensitive.
getHeaderBS :: HasHeaders r => ByteString -> r -> Maybe ByteString Source #
Lookup header value. Key is a case-insensitive bytestring.
getHeaderUnsafe :: HasHeaders r => ByteString -> r -> Maybe ByteString Source #
Lookup header value with a case-sensitive key. The key must be lowercase.
hasHeader :: HasHeaders r => String -> r -> Bool Source #
Returns True if the associated key is found in the Headers. The lookup is case insensitive.
hasHeaderBS :: HasHeaders r => ByteString -> r -> Bool Source #
Acts as hasHeader with ByteStrings
hasHeaderUnsafe :: HasHeaders r => ByteString -> r -> Bool Source #
Acts as hasHeaderBS but the key is case sensitive. It should be
in lowercase.
setHeader :: HasHeaders r => String -> String -> r -> r Source #
Associates the key/value pair in the headers. Forces the key to be lowercase.
setHeaderBS :: HasHeaders r => ByteString -> ByteString -> r -> r Source #
Acts as setHeader but with ByteStrings.
setHeaderUnsafe :: HasHeaders r => ByteString -> HeaderPair -> r -> r Source #
Sets the key to the HeaderPair. This is the only way to associate a key with multiple values via the setHeader* functions. Does not force the key to be in lowercase or guarantee that the given key and the key in the HeaderPair will match.
addHeader :: HasHeaders r => String -> String -> r -> r Source #
Add a key/value pair to the header. If the key already has a value associated with it, then the value will be appended. Forces the key to be lowercase.
addHeaderBS :: HasHeaders r => ByteString -> ByteString -> r -> r Source #
Acts as addHeader except for ByteStrings
addHeaderUnsafe :: HasHeaders r => ByteString -> HeaderPair -> r -> r Source #
Add a key/value pair to the header using the underlying HeaderPair data type. Does not force the key to be in lowercase or guarantee that the given key and the key in the HeaderPair will match.
setRsCode :: Monad m => Int -> Response -> m Response Source #
Sets the Response status code to the provided Int and lifts the computation into a Monad.
type LogAccess time = String -> String -> time -> String -> Int -> Integer -> String -> String -> IO () Source #
function to log access requests (see also: logMAccess)
type LogAccess time =
( String -- ^ host
-> String -- ^ user
-> time -- ^ time
-> String -- ^ requestLine
-> Int -- ^ responseCode
-> Integer -- ^ size
-> String -- ^ referer
-> String -- ^ userAgent
-> IO ())
logMAccess :: forall t. FormatTime t => LogAccess t Source #
log access requests using hslogger and apache-style log formatting
see also: Conf
HTTP configuration
Constructors
| Conf | |
Fields
| |
result :: Int -> String -> Response Source #
Creates a Response with the given Int as the status code and the provided String as the body of the Response
resultBS :: Int -> ByteString -> Response Source #
Acts as result but works with ByteStrings directly.
By default, Transfer-Encoding: chunked will be used
redirect :: ToSURI s => Int -> s -> Response -> Response Source #
Sets the Response's status code to the given Int and redirects to the given URI
Result flags
nullRsFlags :: RsFlags Source #
Default RsFlags: automatically use Transfer-Encoding: Chunked.
contentLength :: Response -> Response Source #
Automatically add a Content-Length header. Do not use Transfer-Encoding: Chunked
chunked :: Response -> Response Source #
Do not automatically add a Content-Length header. Do automatically use Transfer-Encoding: Chunked
noContentLength :: Response -> Response Source #
Do not automatically add a Content-Length field to the Response
A flag value set in the Response which controls how the
Content-Length header is set, and whether *chunked* output
encoding is used.
see also: nullRsFlags, notContentLength, and chunked
Constructors
| ContentLength | automatically add a |
| TransferEncodingChunked | do not add a |
| NoContentLength | do not set |
HTTP request method
Arguments
| = Map ByteString HeaderPair | lowercased name -> (realname, value) |
a Map of HTTP headers
the Map key is the header converted to lowercase
continueHTTP :: Request -> Response -> Bool Source #
Should the connection be used for further messages after this. isHTTP1_0 && hasKeepAlive || isHTTP1_1 && hasNotConnectionClose
In addition to this rule All 1xx (informational), 204 (no content), and 304 (not modified) responses MUST NOT include a message-body and therefore are eligible for connection keep-alive.
data ContentType Source #
A MIME media type value.
The Show instance is derived automatically.
Use showContentType to obtain the standard
string representation.
See http://www.ietf.org/rfc/rfc2046.txt for more
information about MIME media types.
Constructors
| ContentType | |
Fields
| |
Instances
class FromReqURI a where Source #
This class is used by path to parse a path component into a
value.
The instances for number types (Int, Float, etc) use readM to
parse the path component.
The instance for String, on the other hand, returns the
unmodified path component.
See the following section of the Happstack Crash Course for
detailed instructions using and extending FromReqURI:
http://www.happstack.com/docs/crashcourse/RouteFilters.html#FromReqURI
Minimal complete definition
Methods
fromReqURI :: String -> Maybe a Source #
Instances