happstack-server-0.3.1: Web related tools and services. Source code Contents Index

Happstack.Server.HTTP.Types

Synopsis

data Request = Request { rqMethod :: Method rqPaths :: [String] rqUri :: String rqQuery :: String rqInputs :: [(String, Input)] rqCookies :: [(String, Cookie)] rqVersion :: Version rqHeaders :: Headers rqBody :: RqBody rqPeer :: Host } data Response = Response { rsCode :: Int rsHeaders :: Headers rsFlags :: RsFlags rsBody :: ByteString rsValidator :: Maybe (Response -> IO Response) } newtype RqBody = Body ByteString data Input = Input { inputValue :: ByteString inputFilename :: Maybe String inputContentType :: ContentType } data HeaderPair = HeaderPair { hName :: ByteString hValue :: [ByteString] } 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 data Conf = Conf { port :: Int validator :: Maybe (Response -> IO Response) } nullConf :: Conf result :: Int -> String -> Response resultBS :: Int -> ByteString -> Response redirect :: ToSURI s => Int -> s -> Response -> Response data RsFlags = RsFlags { rsfContentLength :: Bool } nullRsFlags :: RsFlags noContentLength :: Response -> Response data Version = Version Int Int data Method = GET | HEAD | POST | PUT | DELETE | TRACE | OPTIONS | CONNECT type Headers = Map ByteString HeaderPair continueHTTP :: Request -> Response -> Bool type Host = (String, Int) data ContentType = ContentType { ctType :: String ctSubtype :: String ctParameters :: [(String, String)] }

Documentation

data Request Source

Constructors Request rqMethod :: Method rqPaths :: [String] rqUri :: String rqQuery :: String rqInputs :: [(String, Input)] rqCookies :: [(String, Cookie)] rqVersion :: Version rqHeaders :: Headers rqBody :: RqBody rqPeer :: Host Instances Read Request Show Request Typeable Request HasHeaders Request

data Response Source

Constructors Response rsCode :: Int rsHeaders :: Headers rsFlags :: RsFlags rsBody :: ByteString rsValidator :: Maybe (Response -> IO Response) Instances Show Response Typeable Response Error Response HasHeaders Response ToMessage Response Monad m => WebMonad Response (WebT m) Monad m => WebMonad Response (ServerPartT m) Monad m => FilterMonad Response (WebT m) Monad m => FilterMonad Response (ServerPartT m)

newtype RqBody Source

Constructors Body ByteString Instances Read RqBody Show RqBody Typeable RqBody

data Input Source

Constructors Input inputValue :: ByteString inputFilename :: Maybe String inputContentType :: ContentType Instances Read Input Show Input Typeable Input

data HeaderPair Source

Constructors HeaderPair hName :: ByteString hValue :: [ByteString] Instances Read HeaderPair Show HeaderPair

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.

data Conf Source

HTTP configuration Constructors Conf port :: Int Port for the server to listen on. validator :: Maybe (Response -> IO Response)

nullConf :: Conf Source

Default configuration contains no validator and the port is set to 8000

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.

redirect :: ToSURI s => Int -> s -> Response -> Response Source

Sets the Response's status code to the given Int and redirects to the given URI

data RsFlags Source

Result flags Constructors RsFlags rsfContentLength :: Bool whether a content-length header will be added to the result. Instances Read RsFlags Show RsFlags Typeable RsFlags

nullRsFlags :: RsFlags Source

Default RsFlags that will include the content-length header

noContentLength :: Response -> Response Source

Don't display a Content-Lenght field for the Result.

data Version Source

HTTP version Constructors Version Int Int Instances Eq Version Read Version Show Version

data Method Source

HTTP request method Constructors GET HEAD POST PUT DELETE TRACE OPTIONS CONNECT Instances Eq Method Read Method Show Method MatchMethod Method

type Headers = Map ByteString HeaderPair Source

Combined headers.

continueHTTP :: Request -> Response -> Bool Source

Should the connection be used for further messages after this. | isHTTP1_0 && hasKeepAlive || isHTTP1_1 && hasNotConnectionClose

type Host = (String, Int) Source

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 ctType :: String The top-level media type, the general type of the data. Common examples are "text", "image", "audio", "video", "multipart", and "application". ctSubtype :: String The media subtype, the specific data format. Examples include "plain", "html", "jpeg", "form-data", etc. ctParameters :: [(String, String)] Media type parameters. On common example is the charset parameter for the "text" top-level type, e.g. ("charset","ISO-8859-1"). Instances Eq ContentType Ord ContentType Read ContentType Show ContentType

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