{-# LANGUAGE NamedFieldPuns #-}
{-# LANGUAGE OverloadedStrings #-}
{-# LANGUAGE PatternGuards #-}
{-# LANGUAGE RecordWildCards #-}
module Network.HTTP2.H2.Receiver (
frameReceiver,
) where
import qualified Data.ByteString as BS
import qualified Data.ByteString.Char8 as C8
import qualified Data.ByteString.Short as Short
import qualified Data.ByteString.UTF8 as UTF8
import Data.IORef
import Network.Control
import Network.HTTP.Semantics
import UnliftIO.Concurrent
import qualified UnliftIO.Exception as E
import UnliftIO.STM
import Imports hiding (delete, insert)
import Network.HTTP2.Frame
import Network.HTTP2.H2.Context
import Network.HTTP2.H2.EncodeFrame
import Network.HTTP2.H2.HPACK
import Network.HTTP2.H2.Queue
import Network.HTTP2.H2.Settings
import Network.HTTP2.H2.Stream
import Network.HTTP2.H2.StreamTable
import Network.HTTP2.H2.Types
import Network.HTTP2.H2.Window
continuationLimit :: Int
continuationLimit :: StreamId
continuationLimit = StreamId
10
headerFragmentLimit :: Int
= StreamId
51200
settingsRateLimit :: Int
settingsRateLimit :: StreamId
settingsRateLimit = StreamId
4
emptyFrameRateLimit :: Int
emptyFrameRateLimit :: StreamId
emptyFrameRateLimit = StreamId
4
rstRateLimit :: Int
rstRateLimit :: StreamId
rstRateLimit = StreamId
4
frameReceiver :: Context -> Config -> IO ()
frameReceiver :: Context -> Config -> IO ()
frameReceiver ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
..} conf :: Config
conf@Config{StreamId
Buffer
Manager
SockAddr
StreamId -> IO ByteString
PositionReadMaker
ByteString -> IO ()
confWriteBuffer :: Buffer
confBufferSize :: StreamId
confSendAll :: ByteString -> IO ()
confReadN :: StreamId -> IO ByteString
confPositionReadMaker :: PositionReadMaker
confTimeoutManager :: Manager
confMySockAddr :: SockAddr
confPeerSockAddr :: SockAddr
confWriteBuffer :: Config -> Buffer
confBufferSize :: Config -> StreamId
confSendAll :: Config -> ByteString -> IO ()
confReadN :: Config -> StreamId -> IO ByteString
confPositionReadMaker :: Config -> PositionReadMaker
confTimeoutManager :: Config -> Manager
confMySockAddr :: Config -> SockAddr
confPeerSockAddr :: Config -> SockAddr
..} = StreamId -> IO ()
loop StreamId
0 IO () -> (SomeException -> IO ()) -> IO ()
forall (m :: * -> *) e a.
(MonadUnliftIO m, Exception e) =>
m a -> (e -> m a) -> m a
`E.catch` SomeException -> IO ()
sendGoaway
where
loop :: Int -> IO ()
loop :: StreamId -> IO ()
loop StreamId
n
| StreamId
n StreamId -> StreamId -> Bool
forall a. Eq a => a -> a -> Bool
== StreamId
6 = do
IO ()
forall (m :: * -> *). MonadIO m => m ()
yield
StreamId -> IO ()
loop StreamId
0
| Bool
otherwise = do
ByteString
hd <- StreamId -> IO ByteString
confReadN StreamId
frameHeaderLength
if ByteString -> Bool
BS.null ByteString
hd
then TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
ConnectionIsClosed
else do
Context -> Config -> (FrameType, FrameHeader) -> IO ()
processFrame Context
ctx Config
conf ((FrameType, FrameHeader) -> IO ())
-> (FrameType, FrameHeader) -> IO ()
forall a b. (a -> b) -> a -> b
$ ByteString -> (FrameType, FrameHeader)
decodeFrameHeader ByteString
hd
StreamId -> IO ()
loop (StreamId
n StreamId -> StreamId -> StreamId
forall a. Num a => a -> a -> a
+ StreamId
1)
sendGoaway :: SomeException -> IO ()
sendGoaway SomeException
se
| Just e :: HTTP2Error
e@HTTP2Error
ConnectionIsClosed <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se =
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Just e :: HTTP2Error
e@(ConnectionErrorIsReceived ErrorCode
_ StreamId
_ ReasonPhrase
_) <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se =
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Just e :: HTTP2Error
e@(ConnectionErrorIsSent ErrorCode
err StreamId
sid ReasonPhrase
msg) <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se = do
let frame :: ByteString
frame = StreamId -> ErrorCode -> ByteString -> ByteString
goawayFrame StreamId
sid ErrorCode
err (ByteString -> ByteString) -> ByteString -> ByteString
forall a b. (a -> b) -> a -> b
$ ReasonPhrase -> ByteString
Short.fromShort ReasonPhrase
msg
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe SettingsList -> [ByteString] -> Control
CFrames Maybe SettingsList
forall a. Maybe a
Nothing [ByteString
frame]
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Just e :: HTTP2Error
e@(StreamErrorIsSent ErrorCode
err StreamId
sid ReasonPhrase
msg) <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se = do
let frame :: ByteString
frame = ErrorCode -> StreamId -> ByteString
resetFrame ErrorCode
err StreamId
sid
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe SettingsList -> [ByteString] -> Control
CFrames Maybe SettingsList
forall a. Maybe a
Nothing [ByteString
frame]
let frame' :: ByteString
frame' = StreamId -> ErrorCode -> ByteString -> ByteString
goawayFrame StreamId
sid ErrorCode
err (ByteString -> ByteString) -> ByteString -> ByteString
forall a b. (a -> b) -> a -> b
$ ReasonPhrase -> ByteString
Short.fromShort ReasonPhrase
msg
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe SettingsList -> [ByteString] -> Control
CFrames Maybe SettingsList
forall a. Maybe a
Nothing [ByteString
frame']
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Just e :: HTTP2Error
e@(StreamErrorIsReceived ErrorCode
err StreamId
sid) <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se = do
let frame :: ByteString
frame = StreamId -> ErrorCode -> ByteString -> ByteString
goawayFrame StreamId
sid ErrorCode
err ByteString
"treat a stream error as a connection error"
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe SettingsList -> [ByteString] -> Control
CFrames Maybe SettingsList
forall a. Maybe a
Nothing [ByteString
frame]
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Just e :: HTTP2Error
e@(BadThingHappen SomeException
_) <- SomeException -> Maybe HTTP2Error
forall e. Exception e => SomeException -> Maybe e
E.fromException SomeException
se =
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish HTTP2Error
e
| Bool
otherwise =
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ HTTP2Error -> Control
CFinish (HTTP2Error -> Control) -> HTTP2Error -> Control
forall a b. (a -> b) -> a -> b
$ SomeException -> HTTP2Error
BadThingHappen SomeException
se
processFrame :: Context -> Config -> (FrameType, FrameHeader) -> IO ()
processFrame :: Context -> Config -> (FrameType, FrameHeader) -> IO ()
processFrame Context
ctx Config
_conf (FrameType
fid, FrameHeader{StreamId
streamId :: StreamId
streamId :: FrameHeader -> StreamId
streamId})
| Context -> Bool
isServer Context
ctx
Bool -> Bool -> Bool
&& StreamId -> Bool
isServerInitiated StreamId
streamId
Bool -> Bool -> Bool
&& (FrameType
fid FrameType -> [FrameType] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`notElem` [FrameType
FramePriority, FrameType
FrameRSTStream, FrameType
FrameWindowUpdate]) =
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
"stream id should be odd"
processFrame Context
ctx Config
_conf (FrameType
FramePushPromise, FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId})
| Context -> Bool
isServer Context
ctx =
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
"push promise is not allowed"
processFrame Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} Config{StreamId
Buffer
Manager
SockAddr
StreamId -> IO ByteString
PositionReadMaker
ByteString -> IO ()
confWriteBuffer :: Config -> Buffer
confBufferSize :: Config -> StreamId
confSendAll :: Config -> ByteString -> IO ()
confReadN :: Config -> StreamId -> IO ByteString
confPositionReadMaker :: Config -> PositionReadMaker
confTimeoutManager :: Config -> Manager
confMySockAddr :: Config -> SockAddr
confPeerSockAddr :: Config -> SockAddr
confWriteBuffer :: Buffer
confBufferSize :: StreamId
confSendAll :: ByteString -> IO ()
confReadN :: StreamId -> IO ByteString
confPositionReadMaker :: PositionReadMaker
confTimeoutManager :: Manager
confMySockAddr :: SockAddr
confPeerSockAddr :: SockAddr
..} (FrameType
ftyp, FrameHeader{StreamId
payloadLength :: StreamId
payloadLength :: FrameHeader -> StreamId
payloadLength, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId})
| FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Ord a => a -> a -> Bool
> FrameType
maxFrameType = do
Maybe StreamId
mx <- IORef (Maybe StreamId) -> IO (Maybe StreamId)
forall a. IORef a -> IO a
readIORef IORef (Maybe StreamId)
continued
case Maybe StreamId
mx of
Maybe StreamId
Nothing -> do
IO ByteString -> IO ()
forall (f :: * -> *) a. Functor f => f a -> f ()
void (IO ByteString -> IO ()) -> IO ByteString -> IO ()
forall a b. (a -> b) -> a -> b
$ StreamId -> IO ByteString
confReadN StreamId
payloadLength
Just StreamId
_ -> HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
"unknown frame"
processFrame ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} Config
conf typhdr :: (FrameType, FrameHeader)
typhdr@(FrameType
ftyp, FrameHeader
header) = do
case (FrameType, FrameHeader)
-> Either FrameDecodeError (FrameType, FrameHeader)
checkFrameHeader (FrameType, FrameHeader)
typhdr of
Left (FrameDecodeError ErrorCode
ec StreamId
sid ReasonPhrase
msg) -> HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ec StreamId
sid ReasonPhrase
msg
Right (FrameType, FrameHeader)
_ -> do
let Settings{StreamId
maxFrameSize :: StreamId
maxFrameSize :: Settings -> StreamId
maxFrameSize, Bool
enablePush :: Bool
enablePush :: Settings -> Bool
enablePush} = Settings
mySettings
sid :: StreamId
sid = FrameHeader -> StreamId
streamId FrameHeader
header
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (FrameHeader -> StreamId
payloadLength FrameHeader
header StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
maxFrameSize) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
FrameSizeError StreamId
sid ReasonPhrase
"exceeds maximum frame size"
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Bool -> Bool
not Bool
enablePush Bool -> Bool -> Bool
&& FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FramePushPromise) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
sid ReasonPhrase
"push not enabled"
Context -> Config -> FrameType -> FrameHeader -> IO ()
controlOrStream Context
ctx Config
conf FrameType
ftyp FrameHeader
header
controlOrStream :: Context -> Config -> FrameType -> FrameHeader -> IO ()
controlOrStream :: Context -> Config -> FrameType -> FrameHeader -> IO ()
controlOrStream ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} Config{StreamId
Buffer
Manager
SockAddr
StreamId -> IO ByteString
PositionReadMaker
ByteString -> IO ()
confWriteBuffer :: Config -> Buffer
confBufferSize :: Config -> StreamId
confSendAll :: Config -> ByteString -> IO ()
confReadN :: Config -> StreamId -> IO ByteString
confPositionReadMaker :: Config -> PositionReadMaker
confTimeoutManager :: Config -> Manager
confMySockAddr :: Config -> SockAddr
confPeerSockAddr :: Config -> SockAddr
confWriteBuffer :: Buffer
confBufferSize :: StreamId
confSendAll :: ByteString -> IO ()
confReadN :: StreamId -> IO ByteString
confPositionReadMaker :: PositionReadMaker
confTimeoutManager :: Manager
confMySockAddr :: SockAddr
confPeerSockAddr :: SockAddr
..} FrameType
ftyp header :: FrameHeader
header@FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId, StreamId
payloadLength :: FrameHeader -> StreamId
payloadLength :: StreamId
payloadLength}
| StreamId -> Bool
isControl StreamId
streamId = do
ByteString
bs <- StreamId -> IO ByteString
confReadN StreamId
payloadLength
FrameType -> FrameHeader -> ByteString -> Context -> IO ()
control FrameType
ftyp FrameHeader
header ByteString
bs Context
ctx
| FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FramePushPromise = do
ByteString
bs <- StreamId -> IO ByteString
confReadN StreamId
payloadLength
FrameHeader -> ByteString -> Context -> IO ()
push FrameHeader
header ByteString
bs Context
ctx
| Bool
otherwise = do
IO ()
checkContinued
Maybe Stream
mstrm <- Context -> FrameType -> StreamId -> IO (Maybe Stream)
getStream Context
ctx FrameType
ftyp StreamId
streamId
ByteString
bs <- StreamId -> IO ByteString
confReadN StreamId
payloadLength
case Maybe Stream
mstrm of
Just Stream
strm -> do
StreamState
state0 <- Stream -> IO StreamState
readStreamState Stream
strm
StreamState
state <- FrameType
-> FrameHeader
-> ByteString
-> Context
-> StreamState
-> Stream
-> IO StreamState
stream FrameType
ftyp FrameHeader
header ByteString
bs Context
ctx StreamState
state0 Stream
strm
IO ()
resetContinued
Bool
set <- StreamState -> Context -> Stream -> StreamId -> IO Bool
processState StreamState
state Context
ctx Stream
strm StreamId
streamId
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when Bool
set IO ()
setContinued
Maybe Stream
Nothing
| FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FramePriority -> do
PriorityFrame Priority
newpri <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodePriorityFrame FrameHeader
header ByteString
bs
Priority -> StreamId -> IO ()
checkPriority Priority
newpri StreamId
streamId
| Bool
otherwise -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
where
setContinued :: IO ()
setContinued = IORef (Maybe StreamId) -> Maybe StreamId -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef (Maybe StreamId)
continued (Maybe StreamId -> IO ()) -> Maybe StreamId -> IO ()
forall a b. (a -> b) -> a -> b
$ StreamId -> Maybe StreamId
forall a. a -> Maybe a
Just StreamId
streamId
resetContinued :: IO ()
resetContinued = IORef (Maybe StreamId) -> Maybe StreamId -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef (Maybe StreamId)
continued Maybe StreamId
forall a. Maybe a
Nothing
checkContinued :: IO ()
checkContinued = do
Maybe StreamId
mx <- IORef (Maybe StreamId) -> IO (Maybe StreamId)
forall a. IORef a -> IO a
readIORef IORef (Maybe StreamId)
continued
case Maybe StreamId
mx of
Maybe StreamId
Nothing -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
Just StreamId
sid
| StreamId
sid StreamId -> StreamId -> Bool
forall a. Eq a => a -> a -> Bool
== StreamId
streamId Bool -> Bool -> Bool
&& FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FrameContinuation -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
| Bool
otherwise ->
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
"continuation frame must follow"
processState :: StreamState -> Context -> Stream -> StreamId -> IO Bool
processState :: StreamState -> Context -> Stream -> StreamId -> IO Bool
processState (Open Maybe ClosedCode
_ (NoBody tbl :: TokenHeaderTable
tbl@(TokenHeaderList
_, ValueTable
reqvt))) ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} strm :: Stream
strm@Stream{MVar (Either SomeException InpObj)
streamInput :: MVar (Either SomeException InpObj)
streamInput :: Stream -> MVar (Either SomeException InpObj)
streamInput} StreamId
streamId = do
let mcl :: Maybe StreamId
mcl = (StreamId, ByteString) -> StreamId
forall a b. (a, b) -> a
fst ((StreamId, ByteString) -> StreamId)
-> Maybe (StreamId, ByteString) -> Maybe StreamId
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenContentLength ValueTable
reqvt Maybe ByteString
-> (ByteString -> Maybe (StreamId, ByteString))
-> Maybe (StreamId, ByteString)
forall a b. Maybe a -> (a -> Maybe b) -> Maybe b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= ByteString -> Maybe (StreamId, ByteString)
C8.readInt)
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (Maybe StreamId -> (StreamId -> Bool) -> Bool
forall a. Maybe a -> (a -> Bool) -> Bool
just Maybe StreamId
mcl (StreamId -> StreamId -> Bool
forall a. Eq a => a -> a -> Bool
/= (StreamId
0 :: Int))) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
StreamErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"no body but content-length is not zero"
IORef (Maybe TokenHeaderTable)
tlr <- Maybe TokenHeaderTable -> IO (IORef (Maybe TokenHeaderTable))
forall a. a -> IO (IORef a)
newIORef Maybe TokenHeaderTable
forall a. Maybe a
Nothing
let inpObj :: InpObj
inpObj = TokenHeaderTable
-> Maybe StreamId
-> IO ByteString
-> IORef (Maybe TokenHeaderTable)
-> InpObj
InpObj TokenHeaderTable
tbl (StreamId -> Maybe StreamId
forall a. a -> Maybe a
Just StreamId
0) (ByteString -> IO ByteString
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
"") IORef (Maybe TokenHeaderTable)
tlr
if Context -> Bool
isServer Context
ctx
then do
let si :: ServerInfo
si = RoleInfo -> ServerInfo
toServerInfo RoleInfo
roleInfo
STM () -> IO ()
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM () -> IO ()) -> STM () -> IO ()
forall a b. (a -> b) -> a -> b
$ TQueue (Input Stream) -> Input Stream -> STM ()
forall a. TQueue a -> a -> STM ()
writeTQueue (ServerInfo -> TQueue (Input Stream)
inputQ ServerInfo
si) (Input Stream -> STM ()) -> Input Stream -> STM ()
forall a b. (a -> b) -> a -> b
$ Stream -> InpObj -> Input Stream
forall a. a -> InpObj -> Input a
Input Stream
strm InpObj
inpObj
else MVar (Either SomeException InpObj)
-> Either SomeException InpObj -> IO ()
forall (m :: * -> *) a. MonadIO m => MVar a -> a -> m ()
putMVar MVar (Either SomeException InpObj)
streamInput (Either SomeException InpObj -> IO ())
-> Either SomeException InpObj -> IO ()
forall a b. (a -> b) -> a -> b
$ InpObj -> Either SomeException InpObj
forall a b. b -> Either a b
Right InpObj
inpObj
Context -> Stream -> IO ()
halfClosedRemote Context
ctx Stream
strm
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
processState (Open Maybe ClosedCode
hcl (HasBody tbl :: TokenHeaderTable
tbl@(TokenHeaderList
_, ValueTable
reqvt))) ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} strm :: Stream
strm@Stream{MVar (Either SomeException InpObj)
streamInput :: Stream -> MVar (Either SomeException InpObj)
streamInput :: MVar (Either SomeException InpObj)
streamInput} StreamId
_streamId = do
let mcl :: Maybe StreamId
mcl = (StreamId, ByteString) -> StreamId
forall a b. (a, b) -> a
fst ((StreamId, ByteString) -> StreamId)
-> Maybe (StreamId, ByteString) -> Maybe StreamId
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> (Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenContentLength ValueTable
reqvt Maybe ByteString
-> (ByteString -> Maybe (StreamId, ByteString))
-> Maybe (StreamId, ByteString)
forall a b. Maybe a -> (a -> Maybe b) -> Maybe b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= ByteString -> Maybe (StreamId, ByteString)
C8.readInt)
IORef StreamId
bodyLength <- StreamId -> IO (IORef StreamId)
forall a. a -> IO (IORef a)
newIORef StreamId
0
IORef (Maybe TokenHeaderTable)
tlr <- Maybe TokenHeaderTable -> IO (IORef (Maybe TokenHeaderTable))
forall a. a -> IO (IORef a)
newIORef Maybe TokenHeaderTable
forall a. Maybe a
Nothing
TQueue (Either SomeException ByteString)
q <- IO (TQueue (Either SomeException ByteString))
forall (m :: * -> *) a. MonadIO m => m (TQueue a)
newTQueueIO
Context -> Stream -> StreamState -> IO ()
setStreamState Context
ctx Stream
strm (StreamState -> IO ()) -> StreamState -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (TQueue (Either SomeException ByteString)
-> Maybe StreamId
-> IORef StreamId
-> IORef (Maybe TokenHeaderTable)
-> OpenState
Body TQueue (Either SomeException ByteString)
q Maybe StreamId
mcl IORef StreamId
bodyLength IORef (Maybe TokenHeaderTable)
tlr)
Source
bodySource <- TQueue (Either SomeException ByteString)
-> (StreamId -> IO ()) -> IO Source
mkSource TQueue (Either SomeException ByteString)
q ((StreamId -> IO ()) -> IO Source)
-> (StreamId -> IO ()) -> IO Source
forall a b. (a -> b) -> a -> b
$ Context -> Stream -> StreamId -> IO ()
informWindowUpdate Context
ctx Stream
strm
let inpObj :: InpObj
inpObj = TokenHeaderTable
-> Maybe StreamId
-> IO ByteString
-> IORef (Maybe TokenHeaderTable)
-> InpObj
InpObj TokenHeaderTable
tbl Maybe StreamId
mcl (Source -> IO ByteString
readSource Source
bodySource) IORef (Maybe TokenHeaderTable)
tlr
if Context -> Bool
isServer Context
ctx
then do
let si :: ServerInfo
si = RoleInfo -> ServerInfo
toServerInfo RoleInfo
roleInfo
STM () -> IO ()
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM () -> IO ()) -> STM () -> IO ()
forall a b. (a -> b) -> a -> b
$ TQueue (Input Stream) -> Input Stream -> STM ()
forall a. TQueue a -> a -> STM ()
writeTQueue (ServerInfo -> TQueue (Input Stream)
inputQ ServerInfo
si) (Input Stream -> STM ()) -> Input Stream -> STM ()
forall a b. (a -> b) -> a -> b
$ Stream -> InpObj -> Input Stream
forall a. a -> InpObj -> Input a
Input Stream
strm InpObj
inpObj
else MVar (Either SomeException InpObj)
-> Either SomeException InpObj -> IO ()
forall (m :: * -> *) a. MonadIO m => MVar a -> a -> m ()
putMVar MVar (Either SomeException InpObj)
streamInput (Either SomeException InpObj -> IO ())
-> Either SomeException InpObj -> IO ()
forall a b. (a -> b) -> a -> b
$ InpObj -> Either SomeException InpObj
forall a b. b -> Either a b
Right InpObj
inpObj
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
processState s :: StreamState
s@(Open Maybe ClosedCode
_ Continued{}) Context
ctx Stream
strm StreamId
_streamId = do
Context -> Stream -> StreamState -> IO ()
setStreamState Context
ctx Stream
strm StreamState
s
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
True
processState StreamState
HalfClosedRemote Context
ctx Stream
strm StreamId
_streamId = do
Context -> Stream -> IO ()
halfClosedRemote Context
ctx Stream
strm
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
processState (Closed ClosedCode
cc) Context
ctx Stream
strm StreamId
_streamId = do
Context -> Stream -> ClosedCode -> IO ()
closed Context
ctx Stream
strm ClosedCode
cc
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
processState StreamState
s Context
ctx Stream
strm StreamId
_streamId = do
Context -> Stream -> StreamState -> IO ()
setStreamState Context
ctx Stream
strm StreamState
s
Bool -> IO Bool
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Bool
False
getStream :: Context -> FrameType -> StreamId -> IO (Maybe Stream)
getStream :: Context -> FrameType -> StreamId -> IO (Maybe Stream)
getStream ctx :: Context
ctx@Context{TVar StreamId
TVar TxFlow
TVar EvenStreamTable
TVar OddStreamTable
IORef Bool
IORef StreamId
IORef (Maybe StreamId)
IORef RxFlow
IORef Settings
SockAddr
Rate
TQueue Control
TQueue (Output Stream)
DynamicTable
Settings
RoleInfo
Role
role :: Context -> Role
roleInfo :: Context -> RoleInfo
mySettings :: Context -> Settings
myFirstSettings :: Context -> IORef Bool
peerSettings :: Context -> IORef Settings
oddStreamTable :: Context -> TVar OddStreamTable
evenStreamTable :: Context -> TVar EvenStreamTable
continued :: Context -> IORef (Maybe StreamId)
myStreamId :: Context -> TVar StreamId
peerStreamId :: Context -> IORef StreamId
outputBufferLimit :: Context -> IORef StreamId
outputQ :: Context -> TQueue (Output Stream)
outputQStreamID :: Context -> TVar StreamId
controlQ :: Context -> TQueue Control
encodeDynamicTable :: Context -> DynamicTable
decodeDynamicTable :: Context -> DynamicTable
txFlow :: Context -> TVar TxFlow
rxFlow :: Context -> IORef RxFlow
pingRate :: Context -> Rate
settingsRate :: Context -> Rate
emptyFrameRate :: Context -> Rate
rstRate :: Context -> Rate
mySockAddr :: Context -> SockAddr
peerSockAddr :: Context -> SockAddr
role :: Role
roleInfo :: RoleInfo
mySettings :: Settings
myFirstSettings :: IORef Bool
peerSettings :: IORef Settings
oddStreamTable :: TVar OddStreamTable
evenStreamTable :: TVar EvenStreamTable
continued :: IORef (Maybe StreamId)
myStreamId :: TVar StreamId
peerStreamId :: IORef StreamId
outputBufferLimit :: IORef StreamId
outputQ :: TQueue (Output Stream)
outputQStreamID :: TVar StreamId
controlQ :: TQueue Control
encodeDynamicTable :: DynamicTable
decodeDynamicTable :: DynamicTable
txFlow :: TVar TxFlow
rxFlow :: IORef RxFlow
pingRate :: Rate
settingsRate :: Rate
emptyFrameRate :: Rate
rstRate :: Rate
mySockAddr :: SockAddr
peerSockAddr :: SockAddr
..} FrameType
ftyp StreamId
streamId
| Bool
isEven = TVar EvenStreamTable -> StreamId -> IO (Maybe Stream)
lookupEven TVar EvenStreamTable
evenStreamTable StreamId
streamId IO (Maybe Stream)
-> (Maybe Stream -> IO (Maybe Stream)) -> IO (Maybe Stream)
forall a b. IO a -> (a -> IO b) -> IO b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= Context -> FrameType -> Maybe Stream -> IO (Maybe Stream)
getEvenStream Context
ctx FrameType
ftyp
| Bool
otherwise = TVar OddStreamTable -> StreamId -> IO (Maybe Stream)
lookupOdd TVar OddStreamTable
oddStreamTable StreamId
streamId IO (Maybe Stream)
-> (Maybe Stream -> IO (Maybe Stream)) -> IO (Maybe Stream)
forall a b. IO a -> (a -> IO b) -> IO b
forall (m :: * -> *) a b. Monad m => m a -> (a -> m b) -> m b
>>= Context
-> FrameType -> StreamId -> Maybe Stream -> IO (Maybe Stream)
getOddStream Context
ctx FrameType
ftyp StreamId
streamId
where
isEven :: Bool
isEven = StreamId -> Bool
isServerInitiated StreamId
streamId
getEvenStream :: Context -> FrameType -> Maybe Stream -> IO (Maybe Stream)
getEvenStream :: Context -> FrameType -> Maybe Stream -> IO (Maybe Stream)
getEvenStream Context
ctx FrameType
ftyp js :: Maybe Stream
js@(Just Stream
strm) = do
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FrameHeaders) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
StreamState
st <- Stream -> IO StreamState
readStreamState Stream
strm
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamState -> Bool
isReserved StreamState
st) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ Context -> Stream -> ClosedCode -> IO ()
halfClosedLocal Context
ctx Stream
strm ClosedCode
Finished
Maybe Stream -> IO (Maybe Stream)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Stream
js
getEvenStream Context
_ FrameType
_ Maybe Stream
Nothing = Maybe Stream -> IO (Maybe Stream)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Stream
forall a. Maybe a
Nothing
getOddStream
:: Context -> FrameType -> StreamId -> Maybe Stream -> IO (Maybe Stream)
getOddStream :: Context
-> FrameType -> StreamId -> Maybe Stream -> IO (Maybe Stream)
getOddStream Context
ctx FrameType
ftyp StreamId
streamId js :: Maybe Stream
js@(Just Stream
strm0) = do
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FrameHeaders) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
StreamState
st <- Stream -> IO StreamState
readStreamState Stream
strm0
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamState -> Bool
isHalfClosedRemote StreamState
st) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
StreamClosed
StreamId
streamId
ReasonPhrase
"header must not be sent to half or fully closed stream"
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamState -> Bool
isIdle StreamState
st) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ Context -> Stream -> IO ()
opened Context
ctx Stream
strm0
Maybe Stream -> IO (Maybe Stream)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Stream
js
getOddStream Context
ctx FrameType
ftyp StreamId
streamId Maybe Stream
Nothing
| Context -> Bool
isServer Context
ctx = do
StreamId
csid <- Context -> IO StreamId
getPeerStreamID Context
ctx
if StreamId
streamId StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
<= StreamId
csid
then
if FrameType
ftyp FrameType -> [FrameType] -> Bool
forall a. Eq a => a -> [a] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`elem` [FrameType
FrameWindowUpdate, FrameType
FrameRSTStream, FrameType
FramePriority]
then Maybe Stream -> IO (Maybe Stream)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Stream
forall a. Maybe a
Nothing
else
HTTP2Error -> IO (Maybe Stream)
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO (Maybe Stream))
-> HTTP2Error -> IO (Maybe Stream)
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"stream identifier must not decrease"
else do
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (FrameType
ftyp FrameType -> [FrameType] -> Bool
forall (t :: * -> *) a. (Foldable t, Eq a) => a -> t a -> Bool
`notElem` [FrameType
FrameHeaders, FrameType
FramePriority]) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
let errmsg :: ReasonPhrase
errmsg =
ByteString -> ReasonPhrase
Short.toShort
( ByteString
"this frame is not allowed in an idle stream: "
ByteString -> ByteString -> ByteString
`BS.append` ([Char] -> ByteString
C8.pack (FrameType -> [Char]
forall a. Show a => a -> [Char]
show FrameType
ftyp))
)
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
errmsg
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (FrameType
ftyp FrameType -> FrameType -> Bool
forall a. Eq a => a -> a -> Bool
== FrameType
FrameHeaders) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ Context -> StreamId -> IO ()
setPeerStreamID Context
ctx StreamId
streamId
Stream -> Maybe Stream
forall a. a -> Maybe a
Just (Stream -> Maybe Stream) -> IO Stream -> IO (Maybe Stream)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Context -> StreamId -> FrameType -> IO Stream
openOddStreamCheck Context
ctx StreamId
streamId FrameType
ftyp
| Bool
otherwise =
Maybe Stream -> IO (Maybe Stream)
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return Maybe Stream
forall a. Maybe a
Nothing
type Payload = ByteString
control :: FrameType -> FrameHeader -> Payload -> Context -> IO ()
control :: FrameType -> FrameHeader -> ByteString -> Context -> IO ()
control FrameType
FrameSettings header :: FrameHeader
header@FrameHeader{FrameFlags
flags :: FrameFlags
flags :: FrameHeader -> FrameFlags
flags, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context{IORef Bool
myFirstSettings :: Context -> IORef Bool
myFirstSettings :: IORef Bool
myFirstSettings, TQueue Control
controlQ :: Context -> TQueue Control
controlQ :: TQueue Control
controlQ, Rate
settingsRate :: Context -> Rate
settingsRate :: Rate
settingsRate, Settings
mySettings :: Context -> Settings
mySettings :: Settings
mySettings, IORef RxFlow
rxFlow :: Context -> IORef RxFlow
rxFlow :: IORef RxFlow
rxFlow} = do
SettingsFrame SettingsList
peerAlist <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeSettingsFrame FrameHeader
header ByteString
bs
(HTTP2Error -> IO Any) -> Maybe HTTP2Error -> IO ()
forall (t :: * -> *) (f :: * -> *) a b.
(Foldable t, Applicative f) =>
(a -> f b) -> t a -> f ()
traverse_ HTTP2Error -> IO Any
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (Maybe HTTP2Error -> IO ()) -> Maybe HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ SettingsList -> Maybe HTTP2Error
checkSettingsList SettingsList
peerAlist
if FrameFlags -> Bool
testAck FrameFlags
flags
then do
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (SettingsList
peerAlist SettingsList -> SettingsList -> Bool
forall a. Eq a => a -> a -> Bool
/= []) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
FrameSizeError StreamId
streamId ReasonPhrase
"ack settings has a body"
else do
StreamId
rate <- Rate -> IO StreamId
getRate Rate
settingsRate
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
settingsRateLimit) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many settings"
let ack :: ByteString
ack = (FrameFlags -> FrameFlags) -> SettingsList -> ByteString
settingsFrame FrameFlags -> FrameFlags
setAck []
Bool
sent <- IORef Bool -> IO Bool
forall a. IORef a -> IO a
readIORef IORef Bool
myFirstSettings
if Bool
sent
then do
let setframe :: Control
setframe = Maybe SettingsList -> [ByteString] -> Control
CFrames (SettingsList -> Maybe SettingsList
forall a. a -> Maybe a
Just SettingsList
peerAlist) [ByteString
ack]
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ Control
setframe
else do
StreamId
connRxWS <- RxFlow -> StreamId
rxfBufSize (RxFlow -> StreamId) -> IO RxFlow -> IO StreamId
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> IORef RxFlow -> IO RxFlow
forall a. IORef a -> IO a
readIORef IORef RxFlow
rxFlow
let frames :: [ByteString]
frames = Settings -> StreamId -> [ByteString]
makeNegotiationFrames Settings
mySettings StreamId
connRxWS
setframe :: Control
setframe = Maybe SettingsList -> [ByteString] -> Control
CFrames (SettingsList -> Maybe SettingsList
forall a. a -> Maybe a
Just SettingsList
peerAlist) ([ByteString]
frames [ByteString] -> [ByteString] -> [ByteString]
forall a. [a] -> [a] -> [a]
++ [ByteString
ack])
IORef Bool -> Bool -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef Bool
myFirstSettings Bool
True
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ Control
setframe
control FrameType
FramePing FrameHeader{FrameFlags
flags :: FrameHeader -> FrameFlags
flags :: FrameFlags
flags, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context{Settings
mySettings :: Context -> Settings
mySettings :: Settings
mySettings, TQueue Control
controlQ :: Context -> TQueue Control
controlQ :: TQueue Control
controlQ, Rate
pingRate :: Context -> Rate
pingRate :: Rate
pingRate} =
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (FrameFlags -> Bool
testAck FrameFlags
flags) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
StreamId
rate <- Rate -> IO StreamId
getRate Rate
pingRate
if StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> Settings -> StreamId
pingRateLimit Settings
mySettings
then HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many ping"
else do
let frame :: ByteString
frame = ByteString -> ByteString
pingFrame ByteString
bs
TQueue Control -> Control -> IO ()
enqueueControl TQueue Control
controlQ (Control -> IO ()) -> Control -> IO ()
forall a b. (a -> b) -> a -> b
$ Maybe SettingsList -> [ByteString] -> Control
CFrames Maybe SettingsList
forall a. Maybe a
Nothing [ByteString
frame]
control FrameType
FrameGoAway FrameHeader
header ByteString
bs Context
_ = do
GoAwayFrame StreamId
sid ErrorCode
err ByteString
msg <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeGoAwayFrame FrameHeader
header ByteString
bs
if ErrorCode
err ErrorCode -> ErrorCode -> Bool
forall a. Eq a => a -> a -> Bool
== ErrorCode
NoError
then HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO HTTP2Error
ConnectionIsClosed
else HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsReceived ErrorCode
err StreamId
sid (ReasonPhrase -> HTTP2Error) -> ReasonPhrase -> HTTP2Error
forall a b. (a -> b) -> a -> b
$ ByteString -> ReasonPhrase
Short.toShort ByteString
msg
control FrameType
FrameWindowUpdate FrameHeader
header ByteString
bs Context
ctx = do
WindowUpdateFrame StreamId
n <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeWindowUpdateFrame FrameHeader
header ByteString
bs
Context -> StreamId -> IO ()
increaseConnectionWindowSize Context
ctx StreamId
n
control FrameType
_ FrameHeader
_ ByteString
_ Context
_ =
() -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
push :: FrameHeader -> ByteString -> Context -> IO ()
push :: FrameHeader -> ByteString -> Context -> IO ()
push header :: FrameHeader
header@FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context
ctx = do
PushPromiseFrame StreamId
sid ByteString
frag <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodePushPromiseFrame FrameHeader
header ByteString
bs
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless (StreamId -> Bool
isServerInitiated StreamId
sid) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"push promise must specify an even stream identifier"
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (ByteString
frag ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
"") (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"wrong header fragment for push promise"
(TokenHeaderList
_, ValueTable
vt) <- ByteString -> StreamId -> Context -> IO TokenHeaderTable
hpackDecodeHeader ByteString
frag StreamId
streamId Context
ctx
let ClientInfo{[Char]
ByteString
scheme :: ByteString
authority :: [Char]
scheme :: ClientInfo -> ByteString
authority :: ClientInfo -> [Char]
..} = RoleInfo -> ClientInfo
toClientInfo (RoleInfo -> ClientInfo) -> RoleInfo -> ClientInfo
forall a b. (a -> b) -> a -> b
$ Context -> RoleInfo
roleInfo Context
ctx
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when
( Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenAuthority ValueTable
vt Maybe ByteString -> Maybe ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString -> Maybe ByteString
forall a. a -> Maybe a
Just ([Char] -> ByteString
UTF8.fromString [Char]
authority)
Bool -> Bool -> Bool
&& Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenScheme ValueTable
vt Maybe ByteString -> Maybe ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString -> Maybe ByteString
forall a. a -> Maybe a
Just ByteString
scheme
)
(IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
let mmethod :: Maybe ByteString
mmethod = Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenMethod ValueTable
vt
mpath :: Maybe ByteString
mpath = Token -> ValueTable -> Maybe ByteString
getFieldValue Token
tokenPath ValueTable
vt
case (Maybe ByteString
mmethod, Maybe ByteString
mpath) of
(Just ByteString
method, Just ByteString
path) ->
Context -> StreamId -> ByteString -> ByteString -> IO ()
openEvenStreamCacheCheck Context
ctx StreamId
sid ByteString
method ByteString
path
(Maybe ByteString, Maybe ByteString)
_ -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
{-# INLINE guardIt #-}
guardIt :: Either FrameDecodeError a -> IO a
guardIt :: forall a. Either FrameDecodeError a -> IO a
guardIt Either FrameDecodeError a
x = case Either FrameDecodeError a
x of
Left (FrameDecodeError ErrorCode
ec StreamId
sid ReasonPhrase
msg) -> HTTP2Error -> IO a
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO a) -> HTTP2Error -> IO a
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ec StreamId
sid ReasonPhrase
msg
Right a
frame -> a -> IO a
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return a
frame
{-# INLINE checkPriority #-}
checkPriority :: Priority -> StreamId -> IO ()
checkPriority :: Priority -> StreamId -> IO ()
checkPriority Priority
p StreamId
me
| StreamId
dep StreamId -> StreamId -> Bool
forall a. Eq a => a -> a -> Bool
== StreamId
me =
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
StreamErrorIsSent ErrorCode
ProtocolError StreamId
me ReasonPhrase
"priority depends on itself"
| Bool
otherwise = () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
where
dep :: StreamId
dep = Priority -> StreamId
streamDependency Priority
p
stream
:: FrameType
-> FrameHeader
-> ByteString
-> Context
-> StreamState
-> Stream
-> IO StreamState
stream :: FrameType
-> FrameHeader
-> ByteString
-> Context
-> StreamState
-> Stream
-> IO StreamState
stream FrameType
FrameHeaders header :: FrameHeader
header@FrameHeader{FrameFlags
flags :: FrameHeader -> FrameFlags
flags :: FrameFlags
flags, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context
ctx s :: StreamState
s@(Open Maybe ClosedCode
hcl OpenState
JustOpened) Stream{StreamId
streamNumber :: StreamId
streamNumber :: Stream -> StreamId
streamNumber} = do
HeadersFrame Maybe Priority
mp ByteString
frag <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeHeadersFrame FrameHeader
header ByteString
bs
let endOfStream :: Bool
endOfStream = FrameFlags -> Bool
testEndStream FrameFlags
flags
endOfHeader :: Bool
endOfHeader = FrameFlags -> Bool
testEndHeader FrameFlags
flags
if ByteString
frag ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
"" Bool -> Bool -> Bool
&& Bool -> Bool
not Bool
endOfStream Bool -> Bool -> Bool
&& Bool -> Bool
not Bool
endOfHeader
then do
StreamId
rate <- Rate -> IO StreamId
getRate (Rate -> IO StreamId) -> Rate -> IO StreamId
forall a b. (a -> b) -> a -> b
$ Context -> Rate
emptyFrameRate Context
ctx
if StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
emptyFrameRateLimit
then
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many empty headers"
else StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
s
else do
case Maybe Priority
mp of
Maybe Priority
Nothing -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
Just Priority
p -> Priority -> StreamId -> IO ()
checkPriority Priority
p StreamId
streamNumber
if Bool
endOfHeader
then do
TokenHeaderTable
tbl <- ByteString -> StreamId -> Context -> IO TokenHeaderTable
hpackDecodeHeader ByteString
frag StreamId
streamId Context
ctx
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (StreamState -> IO StreamState) -> StreamState -> IO StreamState
forall a b. (a -> b) -> a -> b
$
if Bool
endOfStream
then
Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (TokenHeaderTable -> OpenState
NoBody TokenHeaderTable
tbl)
else Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (TokenHeaderTable -> OpenState
HasBody TokenHeaderTable
tbl)
else do
let siz :: StreamId
siz = ByteString -> StreamId
BS.length ByteString
frag
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (StreamState -> IO StreamState) -> StreamState -> IO StreamState
forall a b. (a -> b) -> a -> b
$ Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (OpenState -> StreamState) -> OpenState -> StreamState
forall a b. (a -> b) -> a -> b
$ [ByteString] -> StreamId -> StreamId -> Bool -> OpenState
Continued [ByteString
frag] StreamId
siz StreamId
1 Bool
endOfStream
stream FrameType
FrameHeaders header :: FrameHeader
header@FrameHeader{FrameFlags
flags :: FrameHeader -> FrameFlags
flags :: FrameFlags
flags, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context
ctx (Open Maybe ClosedCode
_ (Body TQueue (Either SomeException ByteString)
q Maybe StreamId
_ IORef StreamId
_ IORef (Maybe TokenHeaderTable)
tlr)) Stream
_ = do
HeadersFrame Maybe Priority
_ ByteString
frag <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeHeadersFrame FrameHeader
header ByteString
bs
let endOfStream :: Bool
endOfStream = FrameFlags -> Bool
testEndStream FrameFlags
flags
if Bool
endOfStream
then do
TokenHeaderTable
tbl <- ByteString -> StreamId -> Context -> IO TokenHeaderTable
hpackDecodeTrailer ByteString
frag StreamId
streamId Context
ctx
IORef (Maybe TokenHeaderTable) -> Maybe TokenHeaderTable -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef (Maybe TokenHeaderTable)
tlr (TokenHeaderTable -> Maybe TokenHeaderTable
forall a. a -> Maybe a
Just TokenHeaderTable
tbl)
STM () -> IO ()
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM () -> IO ()) -> STM () -> IO ()
forall a b. (a -> b) -> a -> b
$ TQueue (Either SomeException ByteString)
-> Either SomeException ByteString -> STM ()
forall a. TQueue a -> a -> STM ()
writeTQueue TQueue (Either SomeException ByteString)
q (Either SomeException ByteString -> STM ())
-> Either SomeException ByteString -> STM ()
forall a b. (a -> b) -> a -> b
$ ByteString -> Either SomeException ByteString
forall a b. b -> Either a b
Right ByteString
""
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
HalfClosedRemote
else
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"continuation in trailer is not supported"
stream
FrameType
FrameData
header :: FrameHeader
header@FrameHeader{FrameFlags
flags :: FrameHeader -> FrameFlags
flags :: FrameFlags
flags, StreamId
payloadLength :: FrameHeader -> StreamId
payloadLength :: StreamId
payloadLength, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId}
ByteString
bs
Context{Rate
emptyFrameRate :: Context -> Rate
emptyFrameRate :: Rate
emptyFrameRate, IORef RxFlow
rxFlow :: Context -> IORef RxFlow
rxFlow :: IORef RxFlow
rxFlow}
s :: StreamState
s@(Open Maybe ClosedCode
_ (Body TQueue (Either SomeException ByteString)
q Maybe StreamId
mcl IORef StreamId
bodyLength IORef (Maybe TokenHeaderTable)
_))
Stream{StreamId
MVar (Either SomeException InpObj)
TVar TxFlow
IORef RxFlow
IORef StreamState
streamInput :: Stream -> MVar (Either SomeException InpObj)
streamNumber :: Stream -> StreamId
streamNumber :: StreamId
streamState :: IORef StreamState
streamInput :: MVar (Either SomeException InpObj)
streamTxFlow :: TVar TxFlow
streamRxFlow :: IORef RxFlow
streamState :: Stream -> IORef StreamState
streamTxFlow :: Stream -> TVar TxFlow
streamRxFlow :: Stream -> IORef RxFlow
..} = do
DataFrame ByteString
body <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeDataFrame FrameHeader
header ByteString
bs
Bool
okc <- IORef RxFlow -> (RxFlow -> (RxFlow, Bool)) -> IO Bool
forall a b. IORef a -> (a -> (a, b)) -> IO b
atomicModifyIORef' IORef RxFlow
rxFlow ((RxFlow -> (RxFlow, Bool)) -> IO Bool)
-> (RxFlow -> (RxFlow, Bool)) -> IO Bool
forall a b. (a -> b) -> a -> b
$ StreamId -> RxFlow -> (RxFlow, Bool)
checkRxLimit StreamId
payloadLength
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless Bool
okc (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
EnhanceYourCalm
StreamId
streamId
ReasonPhrase
"exceeds connection flow-control limit"
Bool
oks <- IORef RxFlow -> (RxFlow -> (RxFlow, Bool)) -> IO Bool
forall a b. IORef a -> (a -> (a, b)) -> IO b
atomicModifyIORef' IORef RxFlow
streamRxFlow ((RxFlow -> (RxFlow, Bool)) -> IO Bool)
-> (RxFlow -> (RxFlow, Bool)) -> IO Bool
forall a b. (a -> b) -> a -> b
$ StreamId -> RxFlow -> (RxFlow, Bool)
checkRxLimit StreamId
payloadLength
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless Bool
oks (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
EnhanceYourCalm
StreamId
streamId
ReasonPhrase
"exceeds stream flow-control limit"
StreamId
len0 <- IORef StreamId -> IO StreamId
forall a. IORef a -> IO a
readIORef IORef StreamId
bodyLength
let len :: StreamId
len = StreamId
len0 StreamId -> StreamId -> StreamId
forall a. Num a => a -> a -> a
+ StreamId
payloadLength
endOfStream :: Bool
endOfStream = FrameFlags -> Bool
testEndStream FrameFlags
flags
if ByteString
body ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
""
then Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
unless Bool
endOfStream (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
StreamId
rate <- Rate -> IO StreamId
getRate Rate
emptyFrameRate
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
emptyFrameRateLimit) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ do
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many empty data"
else do
IORef StreamId -> StreamId -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef StreamId
bodyLength StreamId
len
STM () -> IO ()
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM () -> IO ()) -> STM () -> IO ()
forall a b. (a -> b) -> a -> b
$ TQueue (Either SomeException ByteString)
-> Either SomeException ByteString -> STM ()
forall a. TQueue a -> a -> STM ()
writeTQueue TQueue (Either SomeException ByteString)
q (Either SomeException ByteString -> STM ())
-> Either SomeException ByteString -> STM ()
forall a b. (a -> b) -> a -> b
$ ByteString -> Either SomeException ByteString
forall a b. b -> Either a b
Right ByteString
body
if Bool
endOfStream
then do
case Maybe StreamId
mcl of
Maybe StreamId
Nothing -> () -> IO ()
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ()
Just StreamId
cl ->
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
cl StreamId -> StreamId -> Bool
forall a. Eq a => a -> a -> Bool
/= StreamId
len) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
StreamErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"actual body length is not the same as content-length"
STM () -> IO ()
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM () -> IO ()) -> STM () -> IO ()
forall a b. (a -> b) -> a -> b
$ TQueue (Either SomeException ByteString)
-> Either SomeException ByteString -> STM ()
forall a. TQueue a -> a -> STM ()
writeTQueue TQueue (Either SomeException ByteString)
q (Either SomeException ByteString -> STM ())
-> Either SomeException ByteString -> STM ()
forall a b. (a -> b) -> a -> b
$ ByteString -> Either SomeException ByteString
forall a b. b -> Either a b
Right ByteString
""
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
HalfClosedRemote
else StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
s
stream FrameType
FrameContinuation FrameHeader{FrameFlags
flags :: FrameHeader -> FrameFlags
flags :: FrameFlags
flags, StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
frag Context
ctx s :: StreamState
s@(Open Maybe ClosedCode
hcl (Continued [ByteString]
rfrags StreamId
siz StreamId
n Bool
endOfStream)) Stream
_ = do
let endOfHeader :: Bool
endOfHeader = FrameFlags -> Bool
testEndHeader FrameFlags
flags
if ByteString
frag ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
"" Bool -> Bool -> Bool
&& Bool -> Bool
not Bool
endOfHeader
then do
StreamId
rate <- Rate -> IO StreamId
getRate (Rate -> IO StreamId) -> Rate -> IO StreamId
forall a b. (a -> b) -> a -> b
$ Context -> Rate
emptyFrameRate Context
ctx
if StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
emptyFrameRateLimit
then
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many empty continuation"
else StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
s
else do
let rfrags' :: [ByteString]
rfrags' = ByteString
frag ByteString -> [ByteString] -> [ByteString]
forall a. a -> [a] -> [a]
: [ByteString]
rfrags
siz' :: StreamId
siz' = StreamId
siz StreamId -> StreamId -> StreamId
forall a. Num a => a -> a -> a
+ ByteString -> StreamId
BS.length ByteString
frag
n' :: StreamId
n' = StreamId
n StreamId -> StreamId -> StreamId
forall a. Num a => a -> a -> a
+ StreamId
1
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
siz' StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
headerFragmentLimit) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"Header is too big"
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
n' StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
continuationLimit) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"Header is too fragmented"
if Bool
endOfHeader
then do
let hdrblk :: ByteString
hdrblk = [ByteString] -> ByteString
BS.concat ([ByteString] -> ByteString) -> [ByteString] -> ByteString
forall a b. (a -> b) -> a -> b
$ [ByteString] -> [ByteString]
forall a. [a] -> [a]
reverse [ByteString]
rfrags'
TokenHeaderTable
tbl <- ByteString -> StreamId -> Context -> IO TokenHeaderTable
hpackDecodeHeader ByteString
hdrblk StreamId
streamId Context
ctx
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (StreamState -> IO StreamState) -> StreamState -> IO StreamState
forall a b. (a -> b) -> a -> b
$
if Bool
endOfStream
then
Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (TokenHeaderTable -> OpenState
NoBody TokenHeaderTable
tbl)
else Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (TokenHeaderTable -> OpenState
HasBody TokenHeaderTable
tbl)
else StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (StreamState -> IO StreamState) -> StreamState -> IO StreamState
forall a b. (a -> b) -> a -> b
$ Maybe ClosedCode -> OpenState -> StreamState
Open Maybe ClosedCode
hcl (OpenState -> StreamState) -> OpenState -> StreamState
forall a b. (a -> b) -> a -> b
$ [ByteString] -> StreamId -> StreamId -> Bool -> OpenState
Continued [ByteString]
rfrags' StreamId
siz' StreamId
n' Bool
endOfStream
stream FrameType
FrameWindowUpdate FrameHeader
header ByteString
bs Context
_ StreamState
s Stream
strm = do
WindowUpdateFrame StreamId
n <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeWindowUpdateFrame FrameHeader
header ByteString
bs
Stream -> StreamId -> IO ()
increaseStreamWindowSize Stream
strm StreamId
n
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
s
stream FrameType
FrameRSTStream header :: FrameHeader
header@FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
bs Context
ctx StreamState
s Stream
strm = do
StreamId
rate <- Rate -> IO StreamId
getRate (Rate -> IO StreamId) -> Rate -> IO StreamId
forall a b. (a -> b) -> a -> b
$ Context -> Rate
rstRate Context
ctx
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (StreamId
rate StreamId -> StreamId -> Bool
forall a. Ord a => a -> a -> Bool
> StreamId
rstRateLimit) (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$
HTTP2Error -> IO ()
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO ()) -> HTTP2Error -> IO ()
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
EnhanceYourCalm StreamId
streamId ReasonPhrase
"too many rst_stream"
RSTStreamFrame ErrorCode
err <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodeRSTStreamFrame FrameHeader
header ByteString
bs
let cc :: ClosedCode
cc = ErrorCode -> ClosedCode
Reset ErrorCode
err
Context -> Stream -> ClosedCode -> IO ()
closed Context
ctx Stream
strm ClosedCode
cc
case (StreamState
s, ErrorCode
err) of
(Open (Just ClosedCode
_) OpenState
_, ErrorCode
NoError) ->
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (ClosedCode -> StreamState
Closed ClosedCode
cc)
(StreamState
HalfClosedRemote, ErrorCode
NoError) ->
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return (ClosedCode -> StreamState
Closed ClosedCode
cc)
(StreamState, ErrorCode)
_otherwise -> do
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$ ErrorCode -> StreamId -> HTTP2Error
StreamErrorIsReceived ErrorCode
err StreamId
streamId
stream FrameType
FramePriority FrameHeader
header ByteString
bs Context
_ StreamState
s Stream{StreamId
streamNumber :: Stream -> StreamId
streamNumber :: StreamId
streamNumber} = do
PriorityFrame Priority
newpri <- Either FrameDecodeError FramePayload -> IO FramePayload
forall a. Either FrameDecodeError a -> IO a
guardIt (Either FrameDecodeError FramePayload -> IO FramePayload)
-> Either FrameDecodeError FramePayload -> IO FramePayload
forall a b. (a -> b) -> a -> b
$ FramePayloadDecoder
decodePriorityFrame FrameHeader
header ByteString
bs
Priority -> StreamId -> IO ()
checkPriority Priority
newpri StreamId
streamNumber
StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
s
stream FrameType
FrameContinuation FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
_ Context
_ StreamState
_ Stream
_ =
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent ErrorCode
ProtocolError StreamId
streamId ReasonPhrase
"continue frame cannot come here"
stream FrameType
_ FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
_ Context
_ (Open Maybe ClosedCode
_ Continued{}) Stream
_ =
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
ConnectionErrorIsSent
ErrorCode
ProtocolError
StreamId
streamId
ReasonPhrase
"an illegal frame follows header/continuation frames"
stream FrameType
_ FrameHeader
_ ByteString
_ Context
_ st :: StreamState
st@(Closed (ResetByMe SomeException
_)) Stream
_ = StreamState -> IO StreamState
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return StreamState
st
stream FrameType
FrameData FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
_ Context
_ StreamState
_ Stream
_ =
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
StreamErrorIsSent ErrorCode
StreamClosed StreamId
streamId (ReasonPhrase -> HTTP2Error) -> ReasonPhrase -> HTTP2Error
forall a b. (a -> b) -> a -> b
$
[Char] -> ReasonPhrase
forall a. IsString a => [Char] -> a
fromString ([Char]
"illegal data frame for " [Char] -> [Char] -> [Char]
forall a. [a] -> [a] -> [a]
++ StreamId -> [Char]
forall a. Show a => a -> [Char]
show StreamId
streamId)
stream FrameType
x FrameHeader{StreamId
streamId :: FrameHeader -> StreamId
streamId :: StreamId
streamId} ByteString
_ Context
_ StreamState
_ Stream
_ =
HTTP2Error -> IO StreamState
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO (HTTP2Error -> IO StreamState) -> HTTP2Error -> IO StreamState
forall a b. (a -> b) -> a -> b
$
ErrorCode -> StreamId -> ReasonPhrase -> HTTP2Error
StreamErrorIsSent ErrorCode
ProtocolError StreamId
streamId (ReasonPhrase -> HTTP2Error) -> ReasonPhrase -> HTTP2Error
forall a b. (a -> b) -> a -> b
$
[Char] -> ReasonPhrase
forall a. IsString a => [Char] -> a
fromString ([Char]
"illegal frame " [Char] -> [Char] -> [Char]
forall a. [a] -> [a] -> [a]
++ FrameType -> [Char]
forall a. Show a => a -> [Char]
show FrameType
x [Char] -> [Char] -> [Char]
forall a. [a] -> [a] -> [a]
++ [Char]
" for " [Char] -> [Char] -> [Char]
forall a. [a] -> [a] -> [a]
++ StreamId -> [Char]
forall a. Show a => a -> [Char]
show StreamId
streamId)
data Source
= Source
(Int -> IO ())
(TQueue (Either E.SomeException ByteString))
(IORef ByteString)
(IORef Bool)
mkSource
:: TQueue (Either E.SomeException ByteString) -> (Int -> IO ()) -> IO Source
mkSource :: TQueue (Either SomeException ByteString)
-> (StreamId -> IO ()) -> IO Source
mkSource TQueue (Either SomeException ByteString)
q StreamId -> IO ()
inform = (StreamId -> IO ())
-> TQueue (Either SomeException ByteString)
-> IORef ByteString
-> IORef Bool
-> Source
Source StreamId -> IO ()
inform TQueue (Either SomeException ByteString)
q (IORef ByteString -> IORef Bool -> Source)
-> IO (IORef ByteString) -> IO (IORef Bool -> Source)
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> ByteString -> IO (IORef ByteString)
forall a. a -> IO (IORef a)
newIORef ByteString
"" IO (IORef Bool -> Source) -> IO (IORef Bool) -> IO Source
forall a b. IO (a -> b) -> IO a -> IO b
forall (f :: * -> *) a b. Applicative f => f (a -> b) -> f a -> f b
<*> Bool -> IO (IORef Bool)
forall a. a -> IO (IORef a)
newIORef Bool
False
readSource :: Source -> IO ByteString
readSource :: Source -> IO ByteString
readSource (Source StreamId -> IO ()
inform TQueue (Either SomeException ByteString)
q IORef ByteString
refBS IORef Bool
refEOF) = do
Bool
eof <- IORef Bool -> IO Bool
forall a. IORef a -> IO a
readIORef IORef Bool
refEOF
if Bool
eof
then ByteString -> IO ByteString
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
""
else do
ByteString
bs <- IO ByteString
readBS
let len :: StreamId
len = ByteString -> StreamId
BS.length ByteString
bs
StreamId -> IO ()
inform StreamId
len
ByteString -> IO ByteString
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
bs
where
readBS :: IO ByteString
readBS :: IO ByteString
readBS = do
ByteString
bs0 <- IORef ByteString -> IO ByteString
forall a. IORef a -> IO a
readIORef IORef ByteString
refBS
if ByteString
bs0 ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
""
then do
Either SomeException ByteString
mBS <- STM (Either SomeException ByteString)
-> IO (Either SomeException ByteString)
forall (m :: * -> *) a. MonadIO m => STM a -> m a
atomically (STM (Either SomeException ByteString)
-> IO (Either SomeException ByteString))
-> STM (Either SomeException ByteString)
-> IO (Either SomeException ByteString)
forall a b. (a -> b) -> a -> b
$ TQueue (Either SomeException ByteString)
-> STM (Either SomeException ByteString)
forall a. TQueue a -> STM a
readTQueue TQueue (Either SomeException ByteString)
q
case Either SomeException ByteString
mBS of
Left SomeException
err -> do
IORef Bool -> Bool -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef Bool
refEOF Bool
True
SomeException -> IO ByteString
forall (m :: * -> *) e a. (MonadIO m, Exception e) => e -> m a
E.throwIO SomeException
err
Right ByteString
bs -> do
Bool -> IO () -> IO ()
forall (f :: * -> *). Applicative f => Bool -> f () -> f ()
when (ByteString
bs ByteString -> ByteString -> Bool
forall a. Eq a => a -> a -> Bool
== ByteString
"") (IO () -> IO ()) -> IO () -> IO ()
forall a b. (a -> b) -> a -> b
$ IORef Bool -> Bool -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef Bool
refEOF Bool
True
ByteString -> IO ByteString
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
bs
else do
IORef ByteString -> ByteString -> IO ()
forall a. IORef a -> a -> IO ()
writeIORef IORef ByteString
refBS ByteString
""
ByteString -> IO ByteString
forall a. a -> IO a
forall (m :: * -> *) a. Monad m => a -> m a
return ByteString
bs0