Update github.com/docker/spdystream

Godeps/Godeps.json

@@ -195,7 +195,7 @@
 		},
 		{
 			"ImportPath": "github.com/docker/spdystream",
-			"Rev": "83ae67e694a4ab5cbaee4d3126f25118712b26e6"
+			"Rev": "b2c3287865f3ad6aa22821ddb7b4692b896ac207"
 		},
 		{
 			"ImportPath": "github.com/elazarl/go-bindata-assetfs",

Godeps/_workspace/src/github.com/docker/spdystream/connection.go

@@ -9,7 +9,7 @@ import (
 	"sync"
 	"time"
 
-	"golang.org/x/net/spdy"
+	"github.com/docker/spdystream/spdy"
 )
 
 var (
@@ -593,6 +593,11 @@ func (s *Connection) remoteStreamFinish(stream *Stream) {
 // the stream Wait or WaitTimeout function on the stream returned
 // by this function.
 func (s *Connection) CreateStream(headers http.Header, parent *Stream, fin bool) (*Stream, error) {
+	// MUST synchronize stream creation (all the way to writing the frame)
+	// as stream IDs **MUST** increase monotonically.
+	s.nextIdLock.Lock()
+	defer s.nextIdLock.Unlock()
+
 	streamId := s.getNextStreamId()
 	if streamId == 0 {
 		return nil, fmt.Errorf("Unable to get new stream id")
@@ -833,8 +838,6 @@ func (s *Connection) sendStream(stream *Stream, fin bool) error {
 // getNextStreamId returns the next sequential id
 // every call should produce a unique value or an error
 func (s *Connection) getNextStreamId() spdy.StreamId {
-	s.nextIdLock.Lock()
-	defer s.nextIdLock.Unlock()
 	sid := s.nextStreamId
 	if sid > 0x7fffffff {
 		return 0

Godeps/_workspace/src/github.com/docker/spdystream/priority.go

@@ -4,7 +4,7 @@ import (
 	"container/heap"
 	"sync"
 
-	"golang.org/x/net/spdy"
+	"github.com/docker/spdystream/spdy"
 )
 
 type prioritizedFrame struct {

Godeps/_workspace/src/github.com/docker/spdystream/priority_test.go

@@ -5,7 +5,7 @@ import (
 	"testing"
 	"time"
 
-	"golang.org/x/net/spdy"
+	"github.com/docker/spdystream/spdy"
 )
 
 func TestPriorityQueueOrdering(t *testing.T) {

Godeps/_workspace/src/github.com/docker/spdystream/spdy/dictionary.go

+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package spdy
+
+// headerDictionary is the dictionary sent to the zlib compressor/decompressor.
+var headerDictionary = []byte{
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+}

Godeps/_workspace/src/github.com/docker/spdystream/spdy/types.go

+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Package spdy implements the SPDY protocol (currently SPDY/3), described in
+// http://www.chromium.org/spdy/spdy-protocol/spdy-protocol-draft3.
+package spdy
+
+import (
+	"bytes"
+	"compress/zlib"
+	"io"
+	"net/http"
+)
+
+// Version is the protocol version number that this package implements.
+const Version = 3
+
+// ControlFrameType stores the type field in a control frame header.
+type ControlFrameType uint16
+
+const (
+	TypeSynStream    ControlFrameType = 0x0001
+	TypeSynReply                      = 0x0002
+	TypeRstStream                     = 0x0003
+	TypeSettings                      = 0x0004
+	TypePing                          = 0x0006
+	TypeGoAway                        = 0x0007
+	TypeHeaders                       = 0x0008
+	TypeWindowUpdate                  = 0x0009
+)
+
+// ControlFlags are the flags that can be set on a control frame.
+type ControlFlags uint8
+
+const (
+	ControlFlagFin                   ControlFlags = 0x01
+	ControlFlagUnidirectional                     = 0x02
+	ControlFlagSettingsClearSettings              = 0x01
+)
+
+// DataFlags are the flags that can be set on a data frame.
+type DataFlags uint8
+
+const (
+	DataFlagFin DataFlags = 0x01
+)
+
+// MaxDataLength is the maximum number of bytes that can be stored in one frame.
+const MaxDataLength = 1<<24 - 1
+
+// headerValueSepator separates multiple header values.
+const headerValueSeparator = "\x00"
+
+// Frame is a single SPDY frame in its unpacked in-memory representation. Use
+// Framer to read and write it.
+type Frame interface {
+	write(f *Framer) error
+}
+
+// ControlFrameHeader contains all the fields in a control frame header,
+// in its unpacked in-memory representation.
+type ControlFrameHeader struct {
+	// Note, high bit is the "Control" bit.
+	version   uint16 // spdy version number
+	frameType ControlFrameType
+	Flags     ControlFlags
+	length    uint32 // length of data field
+}
+
+type controlFrame interface {
+	Frame
+	read(h ControlFrameHeader, f *Framer) error
+}
+
+// StreamId represents a 31-bit value identifying the stream.
+type StreamId uint32
+
+// SynStreamFrame is the unpacked, in-memory representation of a SYN_STREAM
+// frame.
+type SynStreamFrame struct {
+	CFHeader             ControlFrameHeader
+	StreamId             StreamId
+	AssociatedToStreamId StreamId // stream id for a stream which this stream is associated to
+	Priority             uint8    // priority of this frame (3-bit)
+	Slot                 uint8    // index in the server's credential vector of the client certificate
+	Headers              http.Header
+}
+
+// SynReplyFrame is the unpacked, in-memory representation of a SYN_REPLY frame.
+type SynReplyFrame struct {
+	CFHeader ControlFrameHeader
+	StreamId StreamId
+	Headers  http.Header
+}
+
+// RstStreamStatus represents the status that led to a RST_STREAM.
+type RstStreamStatus uint32
+
+const (
+	ProtocolError RstStreamStatus = iota + 1
+	InvalidStream
+	RefusedStream
+	UnsupportedVersion
+	Cancel
+	InternalError
+	FlowControlError
+	StreamInUse
+	StreamAlreadyClosed
+	InvalidCredentials
+	FrameTooLarge
+)
+
+// RstStreamFrame is the unpacked, in-memory representation of a RST_STREAM
+// frame.
+type RstStreamFrame struct {
+	CFHeader ControlFrameHeader
+	StreamId StreamId
+	Status   RstStreamStatus
+}
+
+// SettingsFlag represents a flag in a SETTINGS frame.
+type SettingsFlag uint8
+
+const (
+	FlagSettingsPersistValue SettingsFlag = 0x1
+	FlagSettingsPersisted                 = 0x2
+)
+
+// SettingsFlag represents the id of an id/value pair in a SETTINGS frame.
+type SettingsId uint32
+
+const (
+	SettingsUploadBandwidth SettingsId = iota + 1
+	SettingsDownloadBandwidth
+	SettingsRoundTripTime
+	SettingsMaxConcurrentStreams
+	SettingsCurrentCwnd
+	SettingsDownloadRetransRate
+	SettingsInitialWindowSize
+	SettingsClientCretificateVectorSize
+)
+
+// SettingsFlagIdValue is the unpacked, in-memory representation of the
+// combined flag/id/value for a setting in a SETTINGS frame.
+type SettingsFlagIdValue struct {
+	Flag  SettingsFlag
+	Id    SettingsId
+	Value uint32
+}
+
+// SettingsFrame is the unpacked, in-memory representation of a SPDY
+// SETTINGS frame.
+type SettingsFrame struct {
+	CFHeader     ControlFrameHeader
+	FlagIdValues []SettingsFlagIdValue
+}
+
+// PingFrame is the unpacked, in-memory representation of a PING frame.
+type PingFrame struct {
+	CFHeader ControlFrameHeader
+	Id       uint32 // unique id for this ping, from server is even, from client is odd.
+}
+
+// GoAwayStatus represents the status in a GoAwayFrame.
+type GoAwayStatus uint32
+
+const (
+	GoAwayOK GoAwayStatus = iota
+	GoAwayProtocolError
+	GoAwayInternalError
+)
+
+// GoAwayFrame is the unpacked, in-memory representation of a GOAWAY frame.
+type GoAwayFrame struct {
+	CFHeader         ControlFrameHeader
+	LastGoodStreamId StreamId // last stream id which was accepted by sender
+	Status           GoAwayStatus
+}
+
+// HeadersFrame is the unpacked, in-memory representation of a HEADERS frame.
+type HeadersFrame struct {
+	CFHeader ControlFrameHeader
+	StreamId StreamId
+	Headers  http.Header
+}
+
+// WindowUpdateFrame is the unpacked, in-memory representation of a
+// WINDOW_UPDATE frame.
+type WindowUpdateFrame struct {
+	CFHeader        ControlFrameHeader
+	StreamId        StreamId
+	DeltaWindowSize uint32 // additional number of bytes to existing window size
+}
+
+// TODO: Implement credential frame and related methods.
+
+// DataFrame is the unpacked, in-memory representation of a DATA frame.
+type DataFrame struct {
+	// Note, high bit is the "Control" bit. Should be 0 for data frames.
+	StreamId StreamId
+	Flags    DataFlags
+	Data     []byte // payload data of this frame
+}
+
+// A SPDY specific error.
+type ErrorCode string
+
+const (
+	UnlowercasedHeaderName     ErrorCode = "header was not lowercased"
+	DuplicateHeaders                     = "multiple headers with same name"
+	WrongCompressedPayloadSize           = "compressed payload size was incorrect"
+	UnknownFrameType                     = "unknown frame type"
+	InvalidControlFrame                  = "invalid control frame"
+	InvalidDataFrame                     = "invalid data frame"
+	InvalidHeaderPresent                 = "frame contained invalid header"
+	ZeroStreamId                         = "stream id zero is disallowed"
+)
+
+// Error contains both the type of error and additional values. StreamId is 0
+// if Error is not associated with a stream.
+type Error struct {
+	Err      ErrorCode
+	StreamId StreamId
+}
+
+func (e *Error) Error() string {
+	return string(e.Err)
+}
+
+var invalidReqHeaders = map[string]bool{
+	"Connection":        true,
+	"Host":              true,
+	"Keep-Alive":        true,
+	"Proxy-Connection":  true,
+	"Transfer-Encoding": true,
+}
+
+var invalidRespHeaders = map[string]bool{
+	"Connection":        true,
+	"Keep-Alive":        true,
+	"Proxy-Connection":  true,
+	"Transfer-Encoding": true,
+}
+
+// Framer handles serializing/deserializing SPDY frames, including compressing/
+// decompressing payloads.
+type Framer struct {
+	headerCompressionDisabled bool
+	w                         io.Writer
+	headerBuf                 *bytes.Buffer
+	headerCompressor          *zlib.Writer
+	r                         io.Reader
+	headerReader              io.LimitedReader
+	headerDecompressor        io.ReadCloser
+}
+
+// NewFramer allocates a new Framer for a given SPDY connection, represented by
+// a io.Writer and io.Reader. Note that Framer will read and write individual fields
+// from/to the Reader and Writer, so the caller should pass in an appropriately
+// buffered implementation to optimize performance.
+func NewFramer(w io.Writer, r io.Reader) (*Framer, error) {
+	compressBuf := new(bytes.Buffer)
+	compressor, err := zlib.NewWriterLevelDict(compressBuf, zlib.BestCompression, []byte(headerDictionary))
+	if err != nil {
+		return nil, err
+	}
+	framer := &Framer{
+		w:                w,
+		headerBuf:        compressBuf,
+		headerCompressor: compressor,
+		r:                r,
+	}
+	return framer, nil
+}

Godeps/_workspace/src/github.com/docker/spdystream/spdy/write.go

+// Copyright 2011 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package spdy
+
+import (
+	"encoding/binary"
+	"io"
+	"net/http"
+	"strings"
+)
+
+func (frame *SynStreamFrame) write(f *Framer) error {
+	return f.writeSynStreamFrame(frame)
+}
+
+func (frame *SynReplyFrame) write(f *Framer) error {
+	return f.writeSynReplyFrame(frame)
+}
+
+func (frame *RstStreamFrame) write(f *Framer) (err error) {
+	if frame.StreamId == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeRstStream
+	frame.CFHeader.Flags = 0
+	frame.CFHeader.length = 8
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return
+	}
+	if frame.Status == 0 {
+		return &Error{InvalidControlFrame, frame.StreamId}
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.Status); err != nil {
+		return
+	}
+	return
+}
+
+func (frame *SettingsFrame) write(f *Framer) (err error) {
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeSettings
+	frame.CFHeader.length = uint32(len(frame.FlagIdValues)*8 + 4)
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, uint32(len(frame.FlagIdValues))); err != nil {
+		return
+	}
+	for _, flagIdValue := range frame.FlagIdValues {
+		flagId := uint32(flagIdValue.Flag)<<24 | uint32(flagIdValue.Id)
+		if err = binary.Write(f.w, binary.BigEndian, flagId); err != nil {
+			return
+		}
+		if err = binary.Write(f.w, binary.BigEndian, flagIdValue.Value); err != nil {
+			return
+		}
+	}
+	return
+}
+
+func (frame *PingFrame) write(f *Framer) (err error) {
+	if frame.Id == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypePing
+	frame.CFHeader.Flags = 0
+	frame.CFHeader.length = 4
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.Id); err != nil {
+		return
+	}
+	return
+}
+
+func (frame *GoAwayFrame) write(f *Framer) (err error) {
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeGoAway
+	frame.CFHeader.Flags = 0
+	frame.CFHeader.length = 8
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.LastGoodStreamId); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.Status); err != nil {
+		return
+	}
+	return nil
+}
+
+func (frame *HeadersFrame) write(f *Framer) error {
+	return f.writeHeadersFrame(frame)
+}
+
+func (frame *WindowUpdateFrame) write(f *Framer) (err error) {
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeWindowUpdate
+	frame.CFHeader.Flags = 0
+	frame.CFHeader.length = 8
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.DeltaWindowSize); err != nil {
+		return
+	}
+	return nil
+}
+
+func (frame *DataFrame) write(f *Framer) error {
+	return f.writeDataFrame(frame)
+}
+
+// WriteFrame writes a frame.
+func (f *Framer) WriteFrame(frame Frame) error {
+	return frame.write(f)
+}
+
+func writeControlFrameHeader(w io.Writer, h ControlFrameHeader) error {
+	if err := binary.Write(w, binary.BigEndian, 0x8000|h.version); err != nil {
+		return err
+	}
+	if err := binary.Write(w, binary.BigEndian, h.frameType); err != nil {
+		return err
+	}
+	flagsAndLength := uint32(h.Flags)<<24 | h.length
+	if err := binary.Write(w, binary.BigEndian, flagsAndLength); err != nil {
+		return err
+	}
+	return nil
+}
+
+func writeHeaderValueBlock(w io.Writer, h http.Header) (n int, err error) {
+	n = 0
+	if err = binary.Write(w, binary.BigEndian, uint32(len(h))); err != nil {
+		return
+	}
+	n += 2
+	for name, values := range h {
+		if err = binary.Write(w, binary.BigEndian, uint32(len(name))); err != nil {
+			return
+		}
+		n += 2
+		name = strings.ToLower(name)
+		if _, err = io.WriteString(w, name); err != nil {
+			return
+		}
+		n += len(name)
+		v := strings.Join(values, headerValueSeparator)
+		if err = binary.Write(w, binary.BigEndian, uint32(len(v))); err != nil {
+			return
+		}
+		n += 2
+		if _, err = io.WriteString(w, v); err != nil {
+			return
+		}
+		n += len(v)
+	}
+	return
+}
+
+func (f *Framer) writeSynStreamFrame(frame *SynStreamFrame) (err error) {
+	if frame.StreamId == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	// Marshal the headers.
+	var writer io.Writer = f.headerBuf
+	if !f.headerCompressionDisabled {
+		writer = f.headerCompressor
+	}
+	if _, err = writeHeaderValueBlock(writer, frame.Headers); err != nil {
+		return
+	}
+	if !f.headerCompressionDisabled {
+		f.headerCompressor.Flush()
+	}
+
+	// Set ControlFrameHeader.
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeSynStream
+	frame.CFHeader.length = uint32(len(f.headerBuf.Bytes()) + 10)
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return err
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return err
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.AssociatedToStreamId); err != nil {
+		return err
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.Priority<<5); err != nil {
+		return err
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.Slot); err != nil {
+		return err
+	}
+	if _, err = f.w.Write(f.headerBuf.Bytes()); err != nil {
+		return err
+	}
+	f.headerBuf.Reset()
+	return nil
+}
+
+func (f *Framer) writeSynReplyFrame(frame *SynReplyFrame) (err error) {
+	if frame.StreamId == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	// Marshal the headers.
+	var writer io.Writer = f.headerBuf
+	if !f.headerCompressionDisabled {
+		writer = f.headerCompressor
+	}
+	if _, err = writeHeaderValueBlock(writer, frame.Headers); err != nil {
+		return
+	}
+	if !f.headerCompressionDisabled {
+		f.headerCompressor.Flush()
+	}
+
+	// Set ControlFrameHeader.
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeSynReply
+	frame.CFHeader.length = uint32(len(f.headerBuf.Bytes()) + 4)
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return
+	}
+	if _, err = f.w.Write(f.headerBuf.Bytes()); err != nil {
+		return
+	}
+	f.headerBuf.Reset()
+	return
+}
+
+func (f *Framer) writeHeadersFrame(frame *HeadersFrame) (err error) {
+	if frame.StreamId == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	// Marshal the headers.
+	var writer io.Writer = f.headerBuf
+	if !f.headerCompressionDisabled {
+		writer = f.headerCompressor
+	}
+	if _, err = writeHeaderValueBlock(writer, frame.Headers); err != nil {
+		return
+	}
+	if !f.headerCompressionDisabled {
+		f.headerCompressor.Flush()
+	}
+
+	// Set ControlFrameHeader.
+	frame.CFHeader.version = Version
+	frame.CFHeader.frameType = TypeHeaders
+	frame.CFHeader.length = uint32(len(f.headerBuf.Bytes()) + 4)
+
+	// Serialize frame to Writer.
+	if err = writeControlFrameHeader(f.w, frame.CFHeader); err != nil {
+		return
+	}
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return
+	}
+	if _, err = f.w.Write(f.headerBuf.Bytes()); err != nil {
+		return
+	}
+	f.headerBuf.Reset()
+	return
+}
+
+func (f *Framer) writeDataFrame(frame *DataFrame) (err error) {
+	if frame.StreamId == 0 {
+		return &Error{ZeroStreamId, 0}
+	}
+	if frame.StreamId&0x80000000 != 0 || len(frame.Data) > MaxDataLength {
+		return &Error{InvalidDataFrame, frame.StreamId}
+	}
+
+	// Serialize frame to Writer.
+	if err = binary.Write(f.w, binary.BigEndian, frame.StreamId); err != nil {
+		return
+	}
+	flagsAndLength := uint32(frame.Flags)<<24 | uint32(len(frame.Data))
+	if err = binary.Write(f.w, binary.BigEndian, flagsAndLength); err != nil {
+		return
+	}
+	if _, err = f.w.Write(frame.Data); err != nil {
+		return
+	}
+	return nil
+}

Godeps/_workspace/src/github.com/docker/spdystream/stream.go

@@ -9,7 +9,7 @@ import (
 	"sync"
 	"time"
 
-	"golang.org/x/net/spdy"
+	"github.com/docker/spdystream/spdy"
 )
 
 var (