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|
{-# LANGUAGE OverloadedStrings #-}
-- | Framing in HTTP\/2(<https://www.rfc-editor.org/rfc/rfc9113>).
module Network.HTTP2.Frame (
-- * Frame
Frame (..),
FrameHeader (..),
FramePayload (..),
HeaderBlockFragment,
Padding,
isPaddingDefined,
-- * Encoding
encodeFrame,
encodeFrameChunks,
encodeFrameHeader,
encodeFrameHeaderBuf,
encodeFramePayload,
EncodeInfo (..),
encodeInfo,
module Network.HTTP2.Frame.Decode,
-- * Frame type
FrameType (
FrameType,
FrameData,
FrameHeaders,
FramePriority,
FrameRSTStream,
FrameSettings,
FramePushPromise,
FramePing,
FrameGoAway,
FrameWindowUpdate,
FrameContinuation
),
fromFrameType,
toFrameType,
minFrameType,
maxFrameType,
framePayloadToFrameType,
-- * Priority
Priority (..),
Weight,
-- * Stream identifier
StreamId,
isControl,
isClientInitiated,
isServerInitiated,
-- * Stream identifier related
testExclusive,
setExclusive,
clearExclusive,
-- * Flags
FrameFlags,
defaultFlags,
testEndStream,
testAck,
testEndHeader,
testPadded,
testPriority,
setEndStream,
setAck,
setEndHeader,
setPadded,
setPriority,
-- * SettingsList
SettingsList,
SettingsKey (
SettingsKey,
SettingsHeaderTableSize,
SettingsEnablePush,
SettingsMaxConcurrentStreams,
SettingsInitialWindowSize,
SettingsMaxFrameSize,
SettingsMaxHeaderListSize
),
SettingsValue,
fromSettingsKey,
toSettingsKey,
-- * Payload length
defaultPayloadLength,
maxPayloadLength,
-- * Window
WindowSize,
defaultWindowSize,
maxWindowSize,
isWindowOverflow,
-- * Error code
ErrorCode (
ErrorCode,
NoError,
ProtocolError,
InternalError,
FlowControlError,
SettingsTimeout,
StreamClosed,
FrameSizeError,
RefusedStream,
Cancel,
CompressionError,
ConnectError,
EnhanceYourCalm,
InadequateSecurity,
HTTP11Required
),
fromErrorCode,
toErrorCode,
-- * Predefined values
connectionPreface,
connectionPrefaceLength,
frameHeaderLength,
recommendedConcurrency,
-- * Deprecated
ErrorCodeId,
SettingsKeyId,
FrameTypeId,
) where
import qualified Data.ByteString as BS
import Network.Control (WindowSize)
import Imports
import Network.HTTP2.Frame.Decode
import Network.HTTP2.Frame.Encode
import Network.HTTP2.Frame.Types
-- | The preface of HTTP\/2.
--
-- >>> connectionPreface
-- "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
connectionPreface :: ByteString
connectionPreface = "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
-- | Length of the preface.
--
-- >>> connectionPrefaceLength
-- 24
connectionPrefaceLength :: Int
connectionPrefaceLength = BS.length connectionPreface
|
