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vendor: update buildkit

Browse Source 
Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
2021-09-21 07:49:39 +02:00
parent 06541ebd0f
commit 45e4550c36
1040 changed files with 100774 additions and 7915 deletions
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2
vendor/github.com/docker/docker-credential-helpers/credentials/version.go generated vendored
View File

@ -1,4 +1,4 @@
package credentials
// Version holds a string describing the current version
const Version = "0.6.3"
const Version = "0.6.4"

2
vendor/github.com/docker/docker/api/common.go generated vendored
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@ -3,7 +3,7 @@ package api // import "github.com/docker/docker/api"
// Common constants for daemon and client.
const (
// DefaultVersion of Current REST API
DefaultVersion = "1.41"
DefaultVersion = "1.42"
// NoBaseImageSpecifier is the symbol used by the FROM
// command to specify that no base image is to be used.

50
vendor/github.com/docker/docker/api/swagger.yaml generated vendored
View File

@ -19,10 +19,10 @@ produces:
consumes:
- "application/json"
- "text/plain"
basePath: "/v1.41"
basePath: "/v1.42"
info:
title: "Docker Engine API"
version: "1.41"
version: "1.42"
x-logo:
url: "https://docs.docker.com/images/logo-docker-main.png"
description: |
@ -55,8 +55,8 @@ info:
the URL is not supported by the daemon, a HTTP `400 Bad Request` error message
is returned.
If you omit the version-prefix, the current version of the API (v1.41) is used.
For example, calling `/info` is the same as calling `/v1.41/info`. Using the
If you omit the version-prefix, the current version of the API (v1.42) is used.
For example, calling `/info` is the same as calling `/v1.42/info`. Using the
API without a version-prefix is deprecated and will be removed in a future release.
Engine releases in the near future should support this version of the API,
@ -5583,12 +5583,12 @@ paths:
schema:
$ref: "#/definitions/ErrorResponse"
404:
description: "no such container"
description: "no such image"
schema:
$ref: "#/definitions/ErrorResponse"
examples:
application/json:
message: "No such container: c2ada9df5af8"
message: "No such image: c2ada9df5af8"
409:
description: "conflict"
schema:
@ -7202,6 +7202,11 @@ paths:
- `reference`=(`<image-name>[:<tag>]`)
- `since`=(`<image-name>[:<tag>]`, `<image id>` or `<image@digest>`)
type: "string"
- name: "shared-size"
in: "query"
description: "Compute and show shared size as a `SharedSize` field on each image."
type: "boolean"
default: false
- name: "digests"
in: "query"
description: "Show digest information as a `RepoDigests` field on each image."
@ -8339,10 +8344,43 @@ paths:
UsageData:
Size: 10920104
RefCount: 2
BuildCache:
-
ID: "hw53o5aio51xtltp5xjp8v7fx"
Parent: ""
Type: "regular"
Description: "pulled from docker.io/library/debian@sha256:234cb88d3020898631af0ccbbcca9a66ae7306ecd30c9720690858c1b007d2a0"
InUse: false
Shared: true
Size: 0
CreatedAt: "2021-06-28T13:31:01.474619385Z"
LastUsedAt: "2021-07-07T22:02:32.738075951Z"
UsageCount: 26
-
ID: "ndlpt0hhvkqcdfkputsk4cq9c"
Parent: "hw53o5aio51xtltp5xjp8v7fx"
Type: "regular"
Description: "mount / from exec /bin/sh -c echo 'Binary::apt::APT::Keep-Downloaded-Packages \"true\";' > /etc/apt/apt.conf.d/keep-cache"
InUse: false
Shared: true
Size: 51
CreatedAt: "2021-06-28T13:31:03.002625487Z"
LastUsedAt: "2021-07-07T22:02:32.773909517Z"
UsageCount: 26
500:
description: "server error"
schema:
$ref: "#/definitions/ErrorResponse"
parameters:
- name: "type"
in: "query"
description: |
Object types, for which to compute and return data.
type: "array"
collectionFormat: multi
items:
type: "string"
enum: ["container", "image", "volume", "build-cache"]
tags: ["System"]
/images/{name}/get:
get:

14
vendor/github.com/docker/docker/api/types/client.go generated vendored
View File

@ -235,10 +235,20 @@ type ImageImportOptions struct {
Platform string // Platform is the target platform of the image
}
// ImageListOptions holds parameters to filter the list of images with.
// ImageListOptions holds parameters to list images with.
type ImageListOptions struct {
All bool
// All controls whether all images in the graph are filtered, or just
// the heads.
All bool
// Filters is a JSON-encoded set of filter arguments.
Filters filters.Args
// SharedSize indicates whether the shared size of images should be computed.
SharedSize bool
// ContainerCount indicates whether container count should be computed.
ContainerCount bool
}
// ImageLoadResponse returns information to the client about a load process.

30
vendor/github.com/docker/docker/api/types/types.go generated vendored
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@ -212,7 +212,12 @@ type Info struct {
SecurityOptions []string
ProductLicense string `json:",omitempty"`
DefaultAddressPools []NetworkAddressPool `json:",omitempty"`
Warnings []string
// Warnings contains a slice of warnings that occurred while collecting
// system information. These warnings are intended to be informational
// messages for the user, and are not intended to be parsed / used for
// other purposes, as they do not have a fixed format.
Warnings []string
}
// KeyValue holds a key/value pair
@ -530,6 +535,27 @@ type ShimConfig struct {
Opts interface{}
}
// DiskUsageObject represents an object type used for disk usage query filtering.
type DiskUsageObject string
const (
// ContainerObject represents a container DiskUsageObject.
ContainerObject DiskUsageObject = "container"
// ImageObject represents an image DiskUsageObject.
ImageObject DiskUsageObject = "image"
// VolumeObject represents a volume DiskUsageObject.
VolumeObject DiskUsageObject = "volume"
// BuildCacheObject represents a build-cache DiskUsageObject.
BuildCacheObject DiskUsageObject = "build-cache"
)
// DiskUsageOptions holds parameters for system disk usage query.
type DiskUsageOptions struct {
// Types specifies what object types to include in the response. If empty,
// all object types are returned.
Types []DiskUsageObject
}
// DiskUsage contains response of Engine API:
// GET "/system/df"
type DiskUsage struct {
@ -538,7 +564,7 @@ type DiskUsage struct {
Containers []*Container
Volumes []*Volume
BuildCache []*BuildCache
BuilderSize int64 // deprecated
BuilderSize int64 `json:",omitempty"` // Deprecated: deprecated in API 1.38, and no longer used since API 1.40.
}
// ContainersPruneReport contains the response for Engine API:

19
vendor/github.com/docker/docker/client/container_create.go generated vendored
View File

@ -4,8 +4,8 @@ import (
"context"
"encoding/json"
"net/url"
"path"
"github.com/containerd/containerd/platforms"
"github.com/docker/docker/api/types/container"
"github.com/docker/docker/api/types/network"
"github.com/docker/docker/api/types/versions"
@ -16,7 +16,6 @@ type configWrapper struct {
*container.Config
HostConfig *container.HostConfig
NetworkingConfig *network.NetworkingConfig
Platform *specs.Platform
}
// ContainerCreate creates a new container based on the given configuration.
@ -38,8 +37,8 @@ func (cli *Client) ContainerCreate(ctx context.Context, config *container.Config
}
query := url.Values{}
if platform != nil {
query.Set("platform", platforms.Format(*platform))
if p := formatPlatform(platform); p != "" {
query.Set("platform", p)
}
if containerName != "" {
@ -61,3 +60,15 @@ func (cli *Client) ContainerCreate(ctx context.Context, config *container.Config
err = json.NewDecoder(serverResp.body).Decode(&response)
return response, err
}
// formatPlatform returns a formatted string representing platform (e.g. linux/arm/v7).
//
// Similar to containerd's platforms.Format(), but does allow components to be
// omitted (e.g. pass "architecture" only, without "os":
// https://github.com/containerd/containerd/blob/v1.5.2/platforms/platforms.go#L243-L263
func formatPlatform(platform *specs.Platform) string {
if platform == nil {
return ""
}
return path.Join(platform.OS, platform.Architecture, platform.Variant)
}

19
vendor/github.com/docker/docker/client/disk_usage.go generated vendored
View File

@ -4,23 +4,30 @@ import (
"context"
"encoding/json"
"fmt"
"net/url"
"github.com/docker/docker/api/types"
)
// DiskUsage requests the current data usage from the daemon
func (cli *Client) DiskUsage(ctx context.Context) (types.DiskUsage, error) {
var du types.DiskUsage
func (cli *Client) DiskUsage(ctx context.Context, options types.DiskUsageOptions) (types.DiskUsage, error) {
var query url.Values
if len(options.Types) > 0 {
query = url.Values{}
for _, t := range options.Types {
query.Add("type", string(t))
}
}
serverResp, err := cli.get(ctx, "/system/df", nil, nil)
serverResp, err := cli.get(ctx, "/system/df", query, nil)
defer ensureReaderClosed(serverResp)
if err != nil {
return du, err
return types.DiskUsage{}, err
}
var du types.DiskUsage
if err := json.NewDecoder(serverResp.body).Decode(&du); err != nil {
return du, fmt.Errorf("Error retrieving disk usage: %v", err)
return types.DiskUsage{}, fmt.Errorf("Error retrieving disk usage: %v", err)
}
return du, nil
}

2
vendor/github.com/docker/docker/client/interface.go generated vendored
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@ -168,7 +168,7 @@ type SystemAPIClient interface {
Events(ctx context.Context, options types.EventsOptions) (<-chan events.Message, <-chan error)
Info(ctx context.Context) (types.Info, error)
RegistryLogin(ctx context.Context, auth types.AuthConfig) (registry.AuthenticateOKBody, error)
DiskUsage(ctx context.Context) (types.DiskUsage, error)
DiskUsage(ctx context.Context, options types.DiskUsageOptions) (types.DiskUsage, error)
Ping(ctx context.Context) (types.Ping, error)
}

17
vendor/github.com/docker/docker/client/request.go generated vendored
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@ -110,11 +110,16 @@ func (cli *Client) sendRequest(ctx context.Context, method, path string, query u
if err != nil {
return serverResponse{}, err
}
resp, err := cli.doRequest(ctx, req)
if err != nil {
return resp, errdefs.FromStatusCode(err, resp.statusCode)
switch {
case errors.Is(err, context.Canceled):
return serverResponse{}, errdefs.Cancelled(err)
case errors.Is(err, context.DeadlineExceeded):
return serverResponse{}, errdefs.Deadline(err)
case err == nil:
err = cli.checkResponseErr(resp)
}
err = cli.checkResponseErr(resp)
return resp, errdefs.FromStatusCode(err, resp.statusCode)
}
@ -242,10 +247,8 @@ func (cli *Client) addHeaders(req *http.Request, headers headers) *http.Request
req.Header.Set(k, v)
}
if headers != nil {
for k, v := range headers {
req.Header[k] = v
}
for k, v := range headers {
req.Header[k] = v
}
return req
}

121
vendor/github.com/docker/docker/pkg/fileutils/fileutils.go generated vendored
View File

@ -9,8 +9,6 @@ import (
"regexp"
"strings"
"text/scanner"
"github.com/sirupsen/logrus"
)
// PatternMatcher allows checking paths against a list of patterns
@ -57,8 +55,16 @@ func NewPatternMatcher(patterns []string) (*PatternMatcher, error) {
return pm, nil
}
// Matches matches path against all the patterns. Matches is not safe to be
// called concurrently
// Matches returns true if "file" matches any of the patterns
// and isn't excluded by any of the subsequent patterns.
//
// The "file" argument should be a slash-delimited path.
//
// Matches is not safe to call concurrently.
//
// This implementation is buggy (it only checks a single parent dir against the
// pattern) and will be removed soon. Use either MatchesOrParentMatches or
// MatchesUsingParentResult instead.
func (pm *PatternMatcher) Matches(file string) (bool, error) {
matched := false
file = filepath.FromSlash(file)
@ -66,10 +72,11 @@ func (pm *PatternMatcher) Matches(file string) (bool, error) {
parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
for _, pattern := range pm.patterns {
negative := false
if pattern.exclusion {
negative = true
// Skip evaluation if this is an inclusion and the filename
// already matched the pattern, or it's an exclusion and it has
// not matched the pattern yet.
if pattern.exclusion != matched {
continue
}
match, err := pattern.match(file)
@ -85,17 +92,88 @@ func (pm *PatternMatcher) Matches(file string) (bool, error) {
}
if match {
matched = !negative
matched = !pattern.exclusion
}
}
if matched {
logrus.Debugf("Skipping excluded path: %s", file)
return matched, nil
}
// MatchesOrParentMatches returns true if "file" matches any of the patterns
// and isn't excluded by any of the subsequent patterns.
//
// The "file" argument should be a slash-delimited path.
//
// Matches is not safe to call concurrently.
func (pm *PatternMatcher) MatchesOrParentMatches(file string) (bool, error) {
matched := false
file = filepath.FromSlash(file)
parentPath := filepath.Dir(file)
parentPathDirs := strings.Split(parentPath, string(os.PathSeparator))
for _, pattern := range pm.patterns {
// Skip evaluation if this is an inclusion and the filename
// already matched the pattern, or it's an exclusion and it has
// not matched the pattern yet.
if pattern.exclusion != matched {
continue
}
match, err := pattern.match(file)
if err != nil {
return false, err
}
if !match && parentPath != "." {
// Check to see if the pattern matches one of our parent dirs.
for i := range parentPathDirs {
match, _ = pattern.match(strings.Join(parentPathDirs[:i+1], string(os.PathSeparator)))
if match {
break
}
}
}
if match {
matched = !pattern.exclusion
}
}
return matched, nil
}
// MatchesUsingParentResult returns true if "file" matches any of the patterns
// and isn't excluded by any of the subsequent patterns. The functionality is
// the same as Matches, but as an optimization, the caller keeps track of
// whether the parent directory matched.
//
// The "file" argument should be a slash-delimited path.
//
// MatchesUsingParentResult is not safe to call concurrently.
func (pm *PatternMatcher) MatchesUsingParentResult(file string, parentMatched bool) (bool, error) {
matched := parentMatched
file = filepath.FromSlash(file)
for _, pattern := range pm.patterns {
// Skip evaluation if this is an inclusion and the filename
// already matched the pattern, or it's an exclusion and it has
// not matched the pattern yet.
if pattern.exclusion != matched {
continue
}
match, err := pattern.match(file)
if err != nil {
return false, err
}
if match {
matched = !pattern.exclusion
}
}
return matched, nil
}
// Exclusions returns true if any of the patterns define exclusions
func (pm *PatternMatcher) Exclusions() bool {
return pm.exclusions
@ -124,7 +202,6 @@ func (p *Pattern) Exclusion() bool {
}
func (p *Pattern) match(path string) (bool, error) {
if p.regexp == nil {
if err := p.compile(); err != nil {
return false, filepath.ErrBadPattern
@ -216,6 +293,9 @@ func (p *Pattern) compile() error {
// Matches returns true if file matches any of the patterns
// and isn't excluded by any of the subsequent patterns.
//
// This implementation is buggy (it only checks a single parent dir against the
// pattern) and will be removed soon. Use MatchesOrParentMatches instead.
func Matches(file string, patterns []string) (bool, error) {
pm, err := NewPatternMatcher(patterns)
if err != nil {
@ -231,6 +311,23 @@ func Matches(file string, patterns []string) (bool, error) {
return pm.Matches(file)
}
// MatchesOrParentMatches returns true if file matches any of the patterns
// and isn't excluded by any of the subsequent patterns.
func MatchesOrParentMatches(file string, patterns []string) (bool, error) {
pm, err := NewPatternMatcher(patterns)
if err != nil {
return false, err
}
file = filepath.Clean(file)
if file == "." {
// Don't let them exclude everything, kind of silly.
return false, nil
}
return pm.MatchesOrParentMatches(file)
}
// CopyFile copies from src to dst until either EOF is reached
// on src or an error occurs. It verifies src exists and removes
// the dst if it exists.

28
vendor/github.com/docker/docker/pkg/namesgenerator/names-generator.go generated vendored
View File

@ -120,6 +120,9 @@ var (
// Docker, starting from 0.7.x, generates names from notable scientists and hackers.
// Please, for any amazing man that you add to the list, consider adding an equally amazing woman to it, and vice versa.
right = [...]string{
// Maria Gaetana Agnesi - Italian mathematician, philosopher, theologian and humanitarian. She was the first woman to write a mathematics handbook and the first woman appointed as a Mathematics Professor at a University. https://en.wikipedia.org/wiki/Maria_Gaetana_Agnesi
"agnesi",
// Muhammad ibn Jābir al-Ḥarrānī al-Battānī was a founding father of astronomy. https://en.wikipedia.org/wiki/Mu%E1%B8%A5ammad_ibn_J%C4%81bir_al-%E1%B8%A4arr%C4%81n%C4%AB_al-Batt%C4%81n%C4%AB
"albattani",
@ -132,9 +135,6 @@ var (
// Kathleen Antonelli, American computer programmer and one of the six original programmers of the ENIAC - https://en.wikipedia.org/wiki/Kathleen_Antonelli
"antonelli",
// Maria Gaetana Agnesi - Italian mathematician, philosopher, theologian and humanitarian. She was the first woman to write a mathematics handbook and the first woman appointed as a Mathematics Professor at a University. https://en.wikipedia.org/wiki/Maria_Gaetana_Agnesi
"agnesi",
// Archimedes was a physicist, engineer and mathematician who invented too many things to list them here. https://en.wikipedia.org/wiki/Archimedes
"archimedes",
@ -249,18 +249,18 @@ var (
// Asima Chatterjee was an Indian organic chemist noted for her research on vinca alkaloids, development of drugs for treatment of epilepsy and malaria - https://en.wikipedia.org/wiki/Asima_Chatterjee
"chatterjee",
// Pafnuty Chebyshev - Russian mathematician. He is known fo his works on probability, statistics, mechanics, analytical geometry and number theory https://en.wikipedia.org/wiki/Pafnuty_Chebyshev
"chebyshev",
// Bram Cohen - American computer programmer and author of the BitTorrent peer-to-peer protocol. https://en.wikipedia.org/wiki/Bram_Cohen
"cohen",
// David Lee Chaum - American computer scientist and cryptographer. Known for his seminal contributions in the field of anonymous communication. https://en.wikipedia.org/wiki/David_Chaum
"chaum",
// Pafnuty Chebyshev - Russian mathematician. He is known fo his works on probability, statistics, mechanics, analytical geometry and number theory https://en.wikipedia.org/wiki/Pafnuty_Chebyshev
"chebyshev",
// Joan Clarke - Bletchley Park code breaker during the Second World War who pioneered techniques that remained top secret for decades. Also an accomplished numismatist https://en.wikipedia.org/wiki/Joan_Clarke
"clarke",
// Bram Cohen - American computer programmer and author of the BitTorrent peer-to-peer protocol. https://en.wikipedia.org/wiki/Bram_Cohen
"cohen",
// Jane Colden - American botanist widely considered the first female American botanist - https://en.wikipedia.org/wiki/Jane_Colden
"colden",
@ -785,15 +785,15 @@ var (
// Dorothy Vaughan was a NASA mathematician and computer programmer on the SCOUT launch vehicle program that put America's first satellites into space - https://en.wikipedia.org/wiki/Dorothy_Vaughan
"vaughan",
// Cédric Villani - French mathematician, won Fields Medal, Fermat Prize and Poincaré Price for his work in differential geometry and statistical mechanics. https://en.wikipedia.org/wiki/C%C3%A9dric_Villani
"villani",
// Sir Mokshagundam Visvesvaraya - is a notable Indian engineer. He is a recipient of the Indian Republic's highest honour, the Bharat Ratna, in 1955. On his birthday, 15 September is celebrated as Engineer's Day in India in his memory - https://en.wikipedia.org/wiki/Visvesvaraya
"visvesvaraya",
// Christiane Nüsslein-Volhard - German biologist, won Nobel Prize in Physiology or Medicine in 1995 for research on the genetic control of embryonic development. https://en.wikipedia.org/wiki/Christiane_N%C3%BCsslein-Volhard
"volhard",
// Cédric Villani - French mathematician, won Fields Medal, Fermat Prize and Poincaré Price for his work in differential geometry and statistical mechanics. https://en.wikipedia.org/wiki/C%C3%A9dric_Villani
"villani",
// Marlyn Wescoff - one of the original programmers of the ENIAC. https://en.wikipedia.org/wiki/ENIAC - https://en.wikipedia.org/wiki/Marlyn_Meltzer
"wescoff",
@ -840,13 +840,13 @@ var (
// integer between 0 and 10 will be added to the end of the name, e.g `focused_turing3`
func GetRandomName(retry int) string {
begin:
name := fmt.Sprintf("%s_%s", left[rand.Intn(len(left))], right[rand.Intn(len(right))])
name := fmt.Sprintf("%s_%s", left[rand.Intn(len(left))], right[rand.Intn(len(right))]) //nolint:gosec // G404: Use of weak random number generator (math/rand instead of crypto/rand)
if name == "boring_wozniak" /* Steve Wozniak is not boring */ {
goto begin
}
if retry > 0 {
name = fmt.Sprintf("%s%d", name, rand.Intn(10))
name = fmt.Sprintf("%s%d", name, rand.Intn(10)) //nolint:gosec // G404: Use of weak random number generator (math/rand instead of crypto/rand)
}
return name
}

5
vendor/github.com/docker/docker/pkg/system/lcow_unsupported.go → vendor/github.com/docker/docker/pkg/system/image_os.go generated vendored
View File

@ -4,11 +4,6 @@ import (
"strings"
)
// LCOWSupported returns true if Linux containers on Windows are supported.
func LCOWSupported() bool {
return false
}
// IsOSSupported determines if an operating system is supported by the host.
func IsOSSupported(os string) bool {
return strings.EqualFold(runtime.GOOS, os)

2
vendor/github.com/docker/docker/pkg/system/stat_linux.go generated vendored
View File

@ -9,7 +9,7 @@ func fromStatT(s *syscall.Stat_t) (*StatT, error) {
uid: s.Uid,
gid: s.Gid,
// the type is 32bit on mips
rdev: uint64(s.Rdev), // nolint: unconvert
rdev: uint64(s.Rdev), //nolint: unconvert
mtim: s.Mtim}, nil
}

11
vendor/github.com/docker/docker/pkg/system/syscall_unix.go generated vendored
View File

@ -1,11 +0,0 @@
// +build linux freebsd
package system // import "github.com/docker/docker/pkg/system"
import "golang.org/x/sys/unix"
// Unmount is a platform-specific helper function to call
// the unmount syscall.
func Unmount(dest string) error {
return unix.Unmount(dest, 0)
}

97
vendor/github.com/docker/docker/pkg/system/syscall_windows.go generated vendored
View File

@ -1,69 +1,30 @@
package system // import "github.com/docker/docker/pkg/system"
import (
"syscall"
"unsafe"
"github.com/Microsoft/hcsshim/osversion"
"github.com/sirupsen/logrus"
"golang.org/x/sys/windows"
)
const (
OWNER_SECURITY_INFORMATION = windows.OWNER_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.OWNER_SECURITY_INFORMATION
GROUP_SECURITY_INFORMATION = windows.GROUP_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.GROUP_SECURITY_INFORMATION
DACL_SECURITY_INFORMATION = windows.DACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.DACL_SECURITY_INFORMATION
SACL_SECURITY_INFORMATION = windows.SACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.SACL_SECURITY_INFORMATION
LABEL_SECURITY_INFORMATION = windows.LABEL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.LABEL_SECURITY_INFORMATION
ATTRIBUTE_SECURITY_INFORMATION = windows.ATTRIBUTE_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.ATTRIBUTE_SECURITY_INFORMATION
SCOPE_SECURITY_INFORMATION = windows.SCOPE_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.SCOPE_SECURITY_INFORMATION
PROCESS_TRUST_LABEL_SECURITY_INFORMATION = 0x00000080
ACCESS_FILTER_SECURITY_INFORMATION = 0x00000100
BACKUP_SECURITY_INFORMATION = windows.BACKUP_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.BACKUP_SECURITY_INFORMATION
PROTECTED_DACL_SECURITY_INFORMATION = windows.PROTECTED_DACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.PROTECTED_DACL_SECURITY_INFORMATION
PROTECTED_SACL_SECURITY_INFORMATION = windows.PROTECTED_SACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.PROTECTED_SACL_SECURITY_INFORMATION
UNPROTECTED_DACL_SECURITY_INFORMATION = windows.UNPROTECTED_DACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.UNPROTECTED_DACL_SECURITY_INFORMATION
UNPROTECTED_SACL_SECURITY_INFORMATION = windows.UNPROTECTED_SACL_SECURITY_INFORMATION // Deprecated: use golang.org/x/sys/windows.UNPROTECTED_SACL_SECURITY_INFORMATION
)
const (
SE_UNKNOWN_OBJECT_TYPE = windows.SE_UNKNOWN_OBJECT_TYPE // Deprecated: use golang.org/x/sys/windows.SE_UNKNOWN_OBJECT_TYPE
SE_FILE_OBJECT = windows.SE_FILE_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_FILE_OBJECT
SE_SERVICE = windows.SE_SERVICE // Deprecated: use golang.org/x/sys/windows.SE_SERVICE
SE_PRINTER = windows.SE_PRINTER // Deprecated: use golang.org/x/sys/windows.SE_PRINTER
SE_REGISTRY_KEY = windows.SE_REGISTRY_KEY // Deprecated: use golang.org/x/sys/windows.SE_REGISTRY_KEY
SE_LMSHARE = windows.SE_LMSHARE // Deprecated: use golang.org/x/sys/windows.SE_LMSHARE
SE_KERNEL_OBJECT = windows.SE_KERNEL_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_KERNEL_OBJECT
SE_WINDOW_OBJECT = windows.SE_WINDOW_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_WINDOW_OBJECT
SE_DS_OBJECT = windows.SE_DS_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_DS_OBJECT
SE_DS_OBJECT_ALL = windows.SE_DS_OBJECT_ALL // Deprecated: use golang.org/x/sys/windows.SE_DS_OBJECT_ALL
SE_PROVIDER_DEFINED_OBJECT = windows.SE_PROVIDER_DEFINED_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_PROVIDER_DEFINED_OBJECT
SE_WMIGUID_OBJECT = windows.SE_WMIGUID_OBJECT // Deprecated: use golang.org/x/sys/windows.SE_WMIGUID_OBJECT
SE_REGISTRY_WOW64_32KEY = windows.SE_REGISTRY_WOW64_32KEY // Deprecated: use golang.org/x/sys/windows.SE_REGISTRY_WOW64_32KEY
)
const (
// Deprecated: use github.com/docker/pkg/idtools.SeTakeOwnershipPrivilege
SeTakeOwnershipPrivilege = "SeTakeOwnershipPrivilege"
)
const (
// Deprecated: use github.com/docker/pkg/idtools.ContainerAdministratorSidString
ContainerAdministratorSidString = "S-1-5-93-2-1"
ContainerUserSidString = "S-1-5-93-2-2"
// Deprecated: use github.com/docker/pkg/idtools.ContainerUserSidString
ContainerUserSidString = "S-1-5-93-2-2"
)
var (
ntuserApiset = windows.NewLazyDLL("ext-ms-win-ntuser-window-l1-1-0")
modadvapi32 = windows.NewLazySystemDLL("advapi32.dll")
procGetVersionExW = modkernel32.NewProc("GetVersionExW")
procSetNamedSecurityInfo = modadvapi32.NewProc("SetNamedSecurityInfoW")
procGetSecurityDescriptorDacl = modadvapi32.NewProc("GetSecurityDescriptorDacl")
ntuserApiset = windows.NewLazyDLL("ext-ms-win-ntuser-window-l1-1-0")
procGetVersionExW = modkernel32.NewProc("GetVersionExW")
)
// OSVersion is a wrapper for Windows version information
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724439(v=vs.85).aspx
type OSVersion = osversion.OSVersion
// https://msdn.microsoft.com/en-us/library/windows/desktop/ms724833(v=vs.85).aspx
// https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-osversioninfoexa
// TODO: use golang.org/x/sys/windows.OsVersionInfoEx (needs OSVersionInfoSize to be exported)
type osVersionInfoEx struct {
OSVersionInfoSize uint32
@ -79,31 +40,21 @@ type osVersionInfoEx struct {
Reserve byte
}
// GetOSVersion gets the operating system version on Windows. Note that
// dockerd.exe must be manifested to get the correct version information.
// Deprecated: use github.com/Microsoft/hcsshim/osversion.Get() instead
func GetOSVersion() OSVersion {
return osversion.Get()
}
// IsWindowsClient returns true if the SKU is client
// IsWindowsClient returns true if the SKU is client. It returns false on
// Windows server, or if an error occurred when making the GetVersionExW
// syscall.
func IsWindowsClient() bool {
osviex := &osVersionInfoEx{OSVersionInfoSize: 284}
r1, _, err := procGetVersionExW.Call(uintptr(unsafe.Pointer(osviex)))
if r1 == 0 {
logrus.Warnf("GetVersionExW failed - assuming server SKU: %v", err)
logrus.WithError(err).Warn("GetVersionExW failed - assuming server SKU")
return false
}
const verNTWorkstation = 0x00000001
// VER_NT_WORKSTATION, see https://docs.microsoft.com/en-us/windows/win32/api/winnt/ns-winnt-osversioninfoexa
const verNTWorkstation = 0x00000001 // VER_NT_WORKSTATION
return osviex.ProductType == verNTWorkstation
}
// Unmount is a platform-specific helper function to call
// the unmount syscall. Not supported on Windows
func Unmount(_ string) error {
return nil
}
// HasWin32KSupport determines whether containers that depend on win32k can
// run on this machine. Win32k is the driver used to implement windowing.
func HasWin32KSupport() bool {
@ -112,25 +63,3 @@ func HasWin32KSupport() bool {
// APIs.
return ntuserApiset.Load() == nil
}
// Deprecated: use golang.org/x/sys/windows.SetNamedSecurityInfo()
func SetNamedSecurityInfo(objectName *uint16, objectType uint32, securityInformation uint32, sidOwner *windows.SID, sidGroup *windows.SID, dacl *byte, sacl *byte) (result error) {
r0, _, _ := syscall.Syscall9(procSetNamedSecurityInfo.Addr(), 7, uintptr(unsafe.Pointer(objectName)), uintptr(objectType), uintptr(securityInformation), uintptr(unsafe.Pointer(sidOwner)), uintptr(unsafe.Pointer(sidGroup)), uintptr(unsafe.Pointer(dacl)), uintptr(unsafe.Pointer(sacl)), 0, 0)
if r0 != 0 {
result = syscall.Errno(r0)
}
return
}
// Deprecated: uses golang.org/x/sys/windows.SecurityDescriptorFromString() and golang.org/x/sys/windows.SECURITY_DESCRIPTOR.DACL()
func GetSecurityDescriptorDacl(securityDescriptor *byte, daclPresent *uint32, dacl **byte, daclDefaulted *uint32) (result error) {
r1, _, e1 := syscall.Syscall6(procGetSecurityDescriptorDacl.Addr(), 4, uintptr(unsafe.Pointer(securityDescriptor)), uintptr(unsafe.Pointer(daclPresent)), uintptr(unsafe.Pointer(dacl)), uintptr(unsafe.Pointer(daclDefaulted)), 0, 0)
if r1 == 0 {
if e1 != 0 {
result = e1
} else {
result = syscall.EINVAL
}
}
return
}

4
vendor/github.com/docker/docker/registry/config.go generated vendored
View File

@ -29,10 +29,6 @@ type serviceConfig struct {
const (
// DefaultNamespace is the default namespace
DefaultNamespace = "docker.io"
// DefaultRegistryVersionHeader is the name of the default HTTP header
// that carries Registry version info
DefaultRegistryVersionHeader = "Docker-Distribution-Api-Version"
// IndexHostname is the index hostname
IndexHostname = "index.docker.io"
// IndexServer is used for user auth and image search

13
vendor/github.com/docker/spdystream/CONTRIBUTING.md generated vendored
View File

@ -1,13 +0,0 @@
# Contributing to SpdyStream
Want to hack on spdystream? Awesome! Here are instructions to get you
started.
SpdyStream is a part of the [Docker](https://docker.io) project, and follows
the same rules and principles. If you're already familiar with the way
Docker does things, you'll feel right at home.
Otherwise, go read
[Docker's contributions guidelines](https://github.com/dotcloud/docker/blob/master/CONTRIBUTING.md).
Happy hacking!

191
vendor/github.com/docker/spdystream/LICENSE generated vendored
View File

@ -1,191 +0,0 @@
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425
vendor/github.com/docker/spdystream/LICENSE.docs generated vendored
View File

@ -1,425 +0,0 @@
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Section 6 -- Term and Termination.
a. This Public License applies for the term of the Copyright and
Similar Rights licensed here. However, if You fail to comply with
this Public License, then Your rights under this Public License
terminate automatically.
b. Where Your right to use the Licensed Material has terminated under
Section 6(a), it reinstates:
1. automatically as of the date the violation is cured, provided
it is cured within 30 days of Your discovery of the
violation; or
2. upon express reinstatement by the Licensor.
For the avoidance of doubt, this Section 6(b) does not affect any
right the Licensor may have to seek remedies for Your violations
of this Public License.
c. For the avoidance of doubt, the Licensor may also offer the
Licensed Material under separate terms or conditions or stop
distributing the Licensed Material at any time; however, doing so
will not terminate this Public License.
d. Sections 1, 5, 6, 7, and 8 survive termination of this Public
License.
Section 7 -- Other Terms and Conditions.
a. The Licensor shall not be bound by any additional or different
terms or conditions communicated by You unless expressly agreed.
b. Any arrangements, understandings, or agreements regarding the
Licensed Material not stated herein are separate from and
independent of the terms and conditions of this Public License.
Section 8 -- Interpretation.
a. For the avoidance of doubt, this Public License does not, and
shall not be interpreted to, reduce, limit, restrict, or impose
conditions on any use of the Licensed Material that could lawfully
be made without permission under this Public License.
b. To the extent possible, if any provision of this Public License is
deemed unenforceable, it shall be automatically reformed to the
minimum extent necessary to make it enforceable. If the provision
cannot be reformed, it shall be severed from this Public License
without affecting the enforceability of the remaining terms and
conditions.
c. No term or condition of this Public License will be waived and no
failure to comply consented to unless expressly agreed to by the
Licensor.
d. Nothing in this Public License constitutes or may be interpreted
as a limitation upon, or waiver of, any privileges and immunities
that apply to the Licensor or You, including from the legal
processes of any jurisdiction or authority.
=======================================================================
Creative Commons is not a party to its public licenses.
Notwithstanding, Creative Commons may elect to apply one of its public
licenses to material it publishes and in those instances will be
considered the "Licensor." Except for the limited purpose of indicating
that material is shared under a Creative Commons public license or as
otherwise permitted by the Creative Commons policies published at
creativecommons.org/policies, Creative Commons does not authorize the
use of the trademark "Creative Commons" or any other trademark or logo
of Creative Commons without its prior written consent including,
without limitation, in connection with any unauthorized modifications
to any of its public licenses or any other arrangements,
understandings, or agreements concerning use of licensed material. For
the avoidance of doubt, this paragraph does not form part of the public
licenses.
Creative Commons may be contacted at creativecommons.org.

28
vendor/github.com/docker/spdystream/MAINTAINERS generated vendored
View File

@ -1,28 +0,0 @@
# Spdystream maintainers file
#
# This file describes who runs the docker/spdystream project and how.
# This is a living document - if you see something out of date or missing, speak up!
#
# It is structured to be consumable by both humans and programs.
# To extract its contents programmatically, use any TOML-compliant parser.
#
# This file is compiled into the MAINTAINERS file in docker/opensource.
#
[Org]
[Org."Core maintainers"]
people = [
"dmcgowan",
]
[people]
# A reference list of all people associated with the project.
# All other sections should refer to people by their canonical key
# in the people section.
# ADD YOURSELF HERE IN ALPHABETICAL ORDER
[people.dmcgowan]
Name = "Derek McGowan"
Email = "derek@docker.com"
GitHub = "dmcgowan"

77
vendor/github.com/docker/spdystream/README.md generated vendored
View File

@ -1,77 +0,0 @@
# SpdyStream
A multiplexed stream library using spdy
## Usage
Client example (connecting to mirroring server without auth)
```go
package main
import (
"fmt"
"github.com/docker/spdystream"
"net"
"net/http"
)
func main() {
conn, err := net.Dial("tcp", "localhost:8080")
if err != nil {
panic(err)
}
spdyConn, err := spdystream.NewConnection(conn, false)
if err != nil {
panic(err)
}
go spdyConn.Serve(spdystream.NoOpStreamHandler)
stream, err := spdyConn.CreateStream(http.Header{}, nil, false)
if err != nil {
panic(err)
}
stream.Wait()
fmt.Fprint(stream, "Writing to stream")
buf := make([]byte, 25)
stream.Read(buf)
fmt.Println(string(buf))
stream.Close()
}
```
Server example (mirroring server without auth)
```go
package main
import (
"github.com/docker/spdystream"
"net"
)
func main() {
listener, err := net.Listen("tcp", "localhost:8080")
if err != nil {
panic(err)
}
for {
conn, err := listener.Accept()
if err != nil {
panic(err)
}
spdyConn, err := spdystream.NewConnection(conn, true)
if err != nil {
panic(err)
}
go spdyConn.Serve(spdystream.MirrorStreamHandler)
}
}
```
## Copyright and license
Copyright © 2014-2015 Docker, Inc. All rights reserved, except as follows. Code is released under the Apache 2.0 license. The README.md file, and files in the "docs" folder are licensed under the Creative Commons Attribution 4.0 International License under the terms and conditions set forth in the file "LICENSE.docs". You may obtain a duplicate copy of the same license, titled CC-BY-SA-4.0, at http://creativecommons.org/licenses/by/4.0/.

959
vendor/github.com/docker/spdystream/connection.go generated vendored
View File

@ -1,959 +0,0 @@
package spdystream
import (
"errors"
"fmt"
"io"
"net"
"net/http"
"sync"
"time"
"github.com/docker/spdystream/spdy"
)
var (
ErrInvalidStreamId = errors.New("Invalid stream id")
ErrTimeout = errors.New("Timeout occurred")
ErrReset = errors.New("Stream reset")
ErrWriteClosedStream = errors.New("Write on closed stream")
)
const (
FRAME_WORKERS = 5
QUEUE_SIZE = 50
)
type StreamHandler func(stream *Stream)
type AuthHandler func(header http.Header, slot uint8, parent uint32) bool
type idleAwareFramer struct {
f *spdy.Framer
conn *Connection
writeLock sync.Mutex
resetChan chan struct{}
setTimeoutLock sync.Mutex
setTimeoutChan chan time.Duration
timeout time.Duration
}
func newIdleAwareFramer(framer *spdy.Framer) *idleAwareFramer {
iaf := &idleAwareFramer{
f: framer,
resetChan: make(chan struct{}, 2),
// setTimeoutChan needs to be buffered to avoid deadlocks when calling setIdleTimeout at about
// the same time the connection is being closed
setTimeoutChan: make(chan time.Duration, 1),
}
return iaf
}
func (i *idleAwareFramer) monitor() {
var (
timer *time.Timer
expired <-chan time.Time
resetChan = i.resetChan
setTimeoutChan = i.setTimeoutChan
)
Loop:
for {
select {
case timeout := <-i.setTimeoutChan:
i.timeout = timeout
if timeout == 0 {
if timer != nil {
timer.Stop()
}
} else {
if timer == nil {
timer = time.NewTimer(timeout)
expired = timer.C
} else {
timer.Reset(timeout)
}
}
case <-resetChan:
if timer != nil && i.timeout > 0 {
timer.Reset(i.timeout)
}
case <-expired:
i.conn.streamCond.L.Lock()
streams := i.conn.streams
i.conn.streams = make(map[spdy.StreamId]*Stream)
i.conn.streamCond.Broadcast()
i.conn.streamCond.L.Unlock()
go func() {
for _, stream := range streams {
stream.resetStream()
}
i.conn.Close()
}()
case <-i.conn.closeChan:
if timer != nil {
timer.Stop()
}
// Start a goroutine to drain resetChan. This is needed because we've seen
// some unit tests with large numbers of goroutines get into a situation
// where resetChan fills up, at least 1 call to Write() is still trying to
// send to resetChan, the connection gets closed, and this case statement
// attempts to grab the write lock that Write() already has, causing a
// deadlock.
//
// See https://github.com/docker/spdystream/issues/49 for more details.
go func() {
for _ = range resetChan {
}
}()
go func() {
for _ = range setTimeoutChan {
}
}()
i.writeLock.Lock()
close(resetChan)
i.resetChan = nil
i.writeLock.Unlock()
i.setTimeoutLock.Lock()
close(i.setTimeoutChan)
i.setTimeoutChan = nil
i.setTimeoutLock.Unlock()
break Loop
}
}
// Drain resetChan
for _ = range resetChan {
}
}
func (i *idleAwareFramer) WriteFrame(frame spdy.Frame) error {
i.writeLock.Lock()
defer i.writeLock.Unlock()
if i.resetChan == nil {
return io.EOF
}
err := i.f.WriteFrame(frame)
if err != nil {
return err
}
i.resetChan <- struct{}{}
return nil
}
func (i *idleAwareFramer) ReadFrame() (spdy.Frame, error) {
frame, err := i.f.ReadFrame()
if err != nil {
return nil, err
}
// resetChan should never be closed since it is only closed
// when the connection has closed its closeChan. This closure
// only occurs after all Reads have finished
// TODO (dmcgowan): refactor relationship into connection
i.resetChan <- struct{}{}
return frame, nil
}
func (i *idleAwareFramer) setIdleTimeout(timeout time.Duration) {
i.setTimeoutLock.Lock()
defer i.setTimeoutLock.Unlock()
if i.setTimeoutChan == nil {
return
}
i.setTimeoutChan <- timeout
}
type Connection struct {
conn net.Conn
framer *idleAwareFramer
closeChan chan bool
goneAway bool
lastStreamChan chan<- *Stream
goAwayTimeout time.Duration
closeTimeout time.Duration
streamLock *sync.RWMutex
streamCond *sync.Cond
streams map[spdy.StreamId]*Stream
nextIdLock sync.Mutex
receiveIdLock sync.Mutex
nextStreamId spdy.StreamId
receivedStreamId spdy.StreamId
pingIdLock sync.Mutex
pingId uint32
pingChans map[uint32]chan error
shutdownLock sync.Mutex
shutdownChan chan error
hasShutdown bool
// for testing https://github.com/docker/spdystream/pull/56
dataFrameHandler func(*spdy.DataFrame) error
}
// NewConnection creates a new spdy connection from an existing
// network connection.
func NewConnection(conn net.Conn, server bool) (*Connection, error) {
framer, framerErr := spdy.NewFramer(conn, conn)
if framerErr != nil {
return nil, framerErr
}
idleAwareFramer := newIdleAwareFramer(framer)
var sid spdy.StreamId
var rid spdy.StreamId
var pid uint32
if server {
sid = 2
rid = 1
pid = 2
} else {
sid = 1
rid = 2
pid = 1
}
streamLock := new(sync.RWMutex)
streamCond := sync.NewCond(streamLock)
session := &Connection{
conn: conn,
framer: idleAwareFramer,
closeChan: make(chan bool),
goAwayTimeout: time.Duration(0),
closeTimeout: time.Duration(0),
streamLock: streamLock,
streamCond: streamCond,
streams: make(map[spdy.StreamId]*Stream),
nextStreamId: sid,
receivedStreamId: rid,
pingId: pid,
pingChans: make(map[uint32]chan error),
shutdownChan: make(chan error),
}
session.dataFrameHandler = session.handleDataFrame
idleAwareFramer.conn = session
go idleAwareFramer.monitor()
return session, nil
}
// Ping sends a ping frame across the connection and
// returns the response time
func (s *Connection) Ping() (time.Duration, error) {
pid := s.pingId
s.pingIdLock.Lock()
if s.pingId > 0x7ffffffe {
s.pingId = s.pingId - 0x7ffffffe
} else {
s.pingId = s.pingId + 2
}
s.pingIdLock.Unlock()
pingChan := make(chan error)
s.pingChans[pid] = pingChan
defer delete(s.pingChans, pid)
frame := &spdy.PingFrame{Id: pid}
startTime := time.Now()
writeErr := s.framer.WriteFrame(frame)
if writeErr != nil {
return time.Duration(0), writeErr
}
select {
case <-s.closeChan:
return time.Duration(0), errors.New("connection closed")
case err, ok := <-pingChan:
if ok && err != nil {
return time.Duration(0), err
}
break
}
return time.Now().Sub(startTime), nil
}
// Serve handles frames sent from the server, including reply frames
// which are needed to fully initiate connections. Both clients and servers
// should call Serve in a separate goroutine before creating streams.
func (s *Connection) Serve(newHandler StreamHandler) {
// use a WaitGroup to wait for all frames to be drained after receiving
// go-away.
var wg sync.WaitGroup
// Parition queues to ensure stream frames are handled
// by the same worker, ensuring order is maintained
frameQueues := make([]*PriorityFrameQueue, FRAME_WORKERS)
for i := 0; i < FRAME_WORKERS; i++ {
frameQueues[i] = NewPriorityFrameQueue(QUEUE_SIZE)
// Ensure frame queue is drained when connection is closed
go func(frameQueue *PriorityFrameQueue) {
<-s.closeChan
frameQueue.Drain()
}(frameQueues[i])
wg.Add(1)
go func(frameQueue *PriorityFrameQueue) {
// let the WaitGroup know this worker is done
defer wg.Done()
s.frameHandler(frameQueue, newHandler)
}(frameQueues[i])
}
var (
partitionRoundRobin int
goAwayFrame *spdy.GoAwayFrame
)
Loop:
for {
readFrame, err := s.framer.ReadFrame()
if err != nil {
if err != io.EOF {
debugMessage("frame read error: %s", err)
} else {
debugMessage("(%p) EOF received", s)
}
break
}
var priority uint8
var partition int
switch frame := readFrame.(type) {
case *spdy.SynStreamFrame:
if s.checkStreamFrame(frame) {
priority = frame.Priority
partition = int(frame.StreamId % FRAME_WORKERS)
debugMessage("(%p) Add stream frame: %d ", s, frame.StreamId)
s.addStreamFrame(frame)
} else {
debugMessage("(%p) Rejected stream frame: %d ", s, frame.StreamId)
continue
}
case *spdy.SynReplyFrame:
priority = s.getStreamPriority(frame.StreamId)
partition = int(frame.StreamId % FRAME_WORKERS)
case *spdy.DataFrame:
priority = s.getStreamPriority(frame.StreamId)
partition = int(frame.StreamId % FRAME_WORKERS)
case *spdy.RstStreamFrame:
priority = s.getStreamPriority(frame.StreamId)
partition = int(frame.StreamId % FRAME_WORKERS)
case *spdy.HeadersFrame:
priority = s.getStreamPriority(frame.StreamId)
partition = int(frame.StreamId % FRAME_WORKERS)
case *spdy.PingFrame:
priority = 0
partition = partitionRoundRobin
partitionRoundRobin = (partitionRoundRobin + 1) % FRAME_WORKERS
case *spdy.GoAwayFrame:
// hold on to the go away frame and exit the loop
goAwayFrame = frame
break Loop
default:
priority = 7
partition = partitionRoundRobin
partitionRoundRobin = (partitionRoundRobin + 1) % FRAME_WORKERS
}
frameQueues[partition].Push(readFrame, priority)
}
close(s.closeChan)
// wait for all frame handler workers to indicate they've drained their queues
// before handling the go away frame
wg.Wait()
if goAwayFrame != nil {
s.handleGoAwayFrame(goAwayFrame)
}
// now it's safe to close remote channels and empty s.streams
s.streamCond.L.Lock()
// notify streams that they're now closed, which will
// unblock any stream Read() calls
for _, stream := range s.streams {
stream.closeRemoteChannels()
}
s.streams = make(map[spdy.StreamId]*Stream)
s.streamCond.Broadcast()
s.streamCond.L.Unlock()
}
func (s *Connection) frameHandler(frameQueue *PriorityFrameQueue, newHandler StreamHandler) {
for {
popFrame := frameQueue.Pop()
if popFrame == nil {
return
}
var frameErr error
switch frame := popFrame.(type) {
case *spdy.SynStreamFrame:
frameErr = s.handleStreamFrame(frame, newHandler)
case *spdy.SynReplyFrame:
frameErr = s.handleReplyFrame(frame)
case *spdy.DataFrame:
frameErr = s.dataFrameHandler(frame)
case *spdy.RstStreamFrame:
frameErr = s.handleResetFrame(frame)
case *spdy.HeadersFrame:
frameErr = s.handleHeaderFrame(frame)
case *spdy.PingFrame:
frameErr = s.handlePingFrame(frame)
case *spdy.GoAwayFrame:
frameErr = s.handleGoAwayFrame(frame)
default:
frameErr = fmt.Errorf("unhandled frame type: %T", frame)
}
if frameErr != nil {
debugMessage("frame handling error: %s", frameErr)
}
}
}
func (s *Connection) getStreamPriority(streamId spdy.StreamId) uint8 {
stream, streamOk := s.getStream(streamId)
if !streamOk {
return 7
}
return stream.priority
}
func (s *Connection) addStreamFrame(frame *spdy.SynStreamFrame) {
var parent *Stream
if frame.AssociatedToStreamId != spdy.StreamId(0) {
parent, _ = s.getStream(frame.AssociatedToStreamId)
}
stream := &Stream{
streamId: frame.StreamId,
parent: parent,
conn: s,
startChan: make(chan error),
headers: frame.Headers,
finished: (frame.CFHeader.Flags & spdy.ControlFlagUnidirectional) != 0x00,
replyCond: sync.NewCond(new(sync.Mutex)),
dataChan: make(chan []byte),
headerChan: make(chan http.Header),
closeChan: make(chan bool),
priority: frame.Priority,
}
if frame.CFHeader.Flags&spdy.ControlFlagFin != 0x00 {
stream.closeRemoteChannels()
}
s.addStream(stream)
}
// checkStreamFrame checks to see if a stream frame is allowed.
// If the stream is invalid, then a reset frame with protocol error
// will be returned.
func (s *Connection) checkStreamFrame(frame *spdy.SynStreamFrame) bool {
s.receiveIdLock.Lock()
defer s.receiveIdLock.Unlock()
if s.goneAway {
return false
}
validationErr := s.validateStreamId(frame.StreamId)
if validationErr != nil {
go func() {
resetErr := s.sendResetFrame(spdy.ProtocolError, frame.StreamId)
if resetErr != nil {
debugMessage("reset error: %s", resetErr)
}
}()
return false
}
return true
}
func (s *Connection) handleStreamFrame(frame *spdy.SynStreamFrame, newHandler StreamHandler) error {
stream, ok := s.getStream(frame.StreamId)
if !ok {
return fmt.Errorf("Missing stream: %d", frame.StreamId)
}
newHandler(stream)
return nil
}
func (s *Connection) handleReplyFrame(frame *spdy.SynReplyFrame) error {
debugMessage("(%p) Reply frame received for %d", s, frame.StreamId)
stream, streamOk := s.getStream(frame.StreamId)
if !streamOk {
debugMessage("Reply frame gone away for %d", frame.StreamId)
// Stream has already gone away
return nil
}
if stream.replied {
// Stream has already received reply
return nil
}
stream.replied = true
// TODO Check for error
if (frame.CFHeader.Flags & spdy.ControlFlagFin) != 0x00 {
s.remoteStreamFinish(stream)
}
close(stream.startChan)
return nil
}
func (s *Connection) handleResetFrame(frame *spdy.RstStreamFrame) error {
stream, streamOk := s.getStream(frame.StreamId)
if !streamOk {
// Stream has already been removed
return nil
}
s.removeStream(stream)
stream.closeRemoteChannels()
if !stream.replied {
stream.replied = true
stream.startChan <- ErrReset
close(stream.startChan)
}
stream.finishLock.Lock()
stream.finished = true
stream.finishLock.Unlock()
return nil
}
func (s *Connection) handleHeaderFrame(frame *spdy.HeadersFrame) error {
stream, streamOk := s.getStream(frame.StreamId)
if !streamOk {
// Stream has already gone away
return nil
}
if !stream.replied {
// No reply received...Protocol error?
return nil
}
// TODO limit headers while not blocking (use buffered chan or goroutine?)
select {
case <-stream.closeChan:
return nil
case stream.headerChan <- frame.Headers:
}
if (frame.CFHeader.Flags & spdy.ControlFlagFin) != 0x00 {
s.remoteStreamFinish(stream)
}
return nil
}
func (s *Connection) handleDataFrame(frame *spdy.DataFrame) error {
debugMessage("(%p) Data frame received for %d", s, frame.StreamId)
stream, streamOk := s.getStream(frame.StreamId)
if !streamOk {
debugMessage("(%p) Data frame gone away for %d", s, frame.StreamId)
// Stream has already gone away
return nil
}
if !stream.replied {
debugMessage("(%p) Data frame not replied %d", s, frame.StreamId)
// No reply received...Protocol error?
return nil
}
debugMessage("(%p) (%d) Data frame handling", stream, stream.streamId)
if len(frame.Data) > 0 {
stream.dataLock.RLock()
select {
case <-stream.closeChan:
debugMessage("(%p) (%d) Data frame not sent (stream shut down)", stream, stream.streamId)
case stream.dataChan <- frame.Data:
debugMessage("(%p) (%d) Data frame sent", stream, stream.streamId)
}
stream.dataLock.RUnlock()
}
if (frame.Flags & spdy.DataFlagFin) != 0x00 {
s.remoteStreamFinish(stream)
}
return nil
}
func (s *Connection) handlePingFrame(frame *spdy.PingFrame) error {
if s.pingId&0x01 != frame.Id&0x01 {
return s.framer.WriteFrame(frame)
}
pingChan, pingOk := s.pingChans[frame.Id]
if pingOk {
close(pingChan)
}
return nil
}
func (s *Connection) handleGoAwayFrame(frame *spdy.GoAwayFrame) error {
debugMessage("(%p) Go away received", s)
s.receiveIdLock.Lock()
if s.goneAway {
s.receiveIdLock.Unlock()
return nil
}
s.goneAway = true
s.receiveIdLock.Unlock()
if s.lastStreamChan != nil {
stream, _ := s.getStream(frame.LastGoodStreamId)
go func() {
s.lastStreamChan <- stream
}()
}
// Do not block frame handler waiting for closure
go s.shutdown(s.goAwayTimeout)
return nil
}
func (s *Connection) remoteStreamFinish(stream *Stream) {
stream.closeRemoteChannels()
stream.finishLock.Lock()
if stream.finished {
// Stream is fully closed, cleanup
s.removeStream(stream)
}
stream.finishLock.Unlock()
}
// CreateStream creates a new spdy stream using the parameters for
// creating the stream frame. The stream frame will be sent upon
// calling this function, however this function does not wait for
// the reply frame. If waiting for the reply is desired, use
// 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")
}
stream := &Stream{
streamId: streamId,
parent: parent,
conn: s,
startChan: make(chan error),
headers: headers,
dataChan: make(chan []byte),
headerChan: make(chan http.Header),
closeChan: make(chan bool),
}
debugMessage("(%p) (%p) Create stream", s, stream)
s.addStream(stream)
return stream, s.sendStream(stream, fin)
}
func (s *Connection) shutdown(closeTimeout time.Duration) {
// TODO Ensure this isn't called multiple times
s.shutdownLock.Lock()
if s.hasShutdown {
s.shutdownLock.Unlock()
return
}
s.hasShutdown = true
s.shutdownLock.Unlock()
var timeout <-chan time.Time
if closeTimeout > time.Duration(0) {
timeout = time.After(closeTimeout)
}
streamsClosed := make(chan bool)
go func() {
s.streamCond.L.Lock()
for len(s.streams) > 0 {
debugMessage("Streams opened: %d, %#v", len(s.streams), s.streams)
s.streamCond.Wait()
}
s.streamCond.L.Unlock()
close(streamsClosed)
}()
var err error
select {
case <-streamsClosed:
// No active streams, close should be safe
err = s.conn.Close()
case <-timeout:
// Force ungraceful close
err = s.conn.Close()
// Wait for cleanup to clear active streams
<-streamsClosed
}
if err != nil {
duration := 10 * time.Minute
time.AfterFunc(duration, func() {
select {
case err, ok := <-s.shutdownChan:
if ok {
debugMessage("Unhandled close error after %s: %s", duration, err)
}
default:
}
})
s.shutdownChan <- err
}
close(s.shutdownChan)
return
}
// Closes spdy connection by sending GoAway frame and initiating shutdown
func (s *Connection) Close() error {
s.receiveIdLock.Lock()
if s.goneAway {
s.receiveIdLock.Unlock()
return nil
}
s.goneAway = true
s.receiveIdLock.Unlock()
var lastStreamId spdy.StreamId
if s.receivedStreamId > 2 {
lastStreamId = s.receivedStreamId - 2
}
goAwayFrame := &spdy.GoAwayFrame{
LastGoodStreamId: lastStreamId,
Status: spdy.GoAwayOK,
}
err := s.framer.WriteFrame(goAwayFrame)
if err != nil {
return err
}
go s.shutdown(s.closeTimeout)
return nil
}
// CloseWait closes the connection and waits for shutdown
// to finish. Note the underlying network Connection
// is not closed until the end of shutdown.
func (s *Connection) CloseWait() error {
closeErr := s.Close()
if closeErr != nil {
return closeErr
}
shutdownErr, ok := <-s.shutdownChan
if ok {
return shutdownErr
}
return nil
}
// Wait waits for the connection to finish shutdown or for
// the wait timeout duration to expire. This needs to be
// called either after Close has been called or the GOAWAYFRAME
// has been received. If the wait timeout is 0, this function
// will block until shutdown finishes. If wait is never called
// and a shutdown error occurs, that error will be logged as an
// unhandled error.
func (s *Connection) Wait(waitTimeout time.Duration) error {
var timeout <-chan time.Time
if waitTimeout > time.Duration(0) {
timeout = time.After(waitTimeout)
}
select {
case err, ok := <-s.shutdownChan:
if ok {
return err
}
case <-timeout:
return ErrTimeout
}
return nil
}
// NotifyClose registers a channel to be called when the remote
// peer inidicates connection closure. The last stream to be
// received by the remote will be sent on the channel. The notify
// timeout will determine the duration between go away received
// and the connection being closed.
func (s *Connection) NotifyClose(c chan<- *Stream, timeout time.Duration) {
s.goAwayTimeout = timeout
s.lastStreamChan = c
}
// SetCloseTimeout sets the amount of time close will wait for
// streams to finish before terminating the underlying network
// connection. Setting the timeout to 0 will cause close to
// wait forever, which is the default.
func (s *Connection) SetCloseTimeout(timeout time.Duration) {
s.closeTimeout = timeout
}
// SetIdleTimeout sets the amount of time the connection may sit idle before
// it is forcefully terminated.
func (s *Connection) SetIdleTimeout(timeout time.Duration) {
s.framer.setIdleTimeout(timeout)
}
func (s *Connection) sendHeaders(headers http.Header, stream *Stream, fin bool) error {
var flags spdy.ControlFlags
if fin {
flags = spdy.ControlFlagFin
}
headerFrame := &spdy.HeadersFrame{
StreamId: stream.streamId,
Headers: headers,
CFHeader: spdy.ControlFrameHeader{Flags: flags},
}
return s.framer.WriteFrame(headerFrame)
}
func (s *Connection) sendReply(headers http.Header, stream *Stream, fin bool) error {
var flags spdy.ControlFlags
if fin {
flags = spdy.ControlFlagFin
}
replyFrame := &spdy.SynReplyFrame{
StreamId: stream.streamId,
Headers: headers,
CFHeader: spdy.ControlFrameHeader{Flags: flags},
}
return s.framer.WriteFrame(replyFrame)
}
func (s *Connection) sendResetFrame(status spdy.RstStreamStatus, streamId spdy.StreamId) error {
resetFrame := &spdy.RstStreamFrame{
StreamId: streamId,
Status: status,
}
return s.framer.WriteFrame(resetFrame)
}
func (s *Connection) sendReset(status spdy.RstStreamStatus, stream *Stream) error {
return s.sendResetFrame(status, stream.streamId)
}
func (s *Connection) sendStream(stream *Stream, fin bool) error {
var flags spdy.ControlFlags
if fin {
flags = spdy.ControlFlagFin
stream.finished = true
}
var parentId spdy.StreamId
if stream.parent != nil {
parentId = stream.parent.streamId
}
streamFrame := &spdy.SynStreamFrame{
StreamId: spdy.StreamId(stream.streamId),
AssociatedToStreamId: spdy.StreamId(parentId),
Headers: stream.headers,
CFHeader: spdy.ControlFrameHeader{Flags: flags},
}
return s.framer.WriteFrame(streamFrame)
}
// getNextStreamId returns the next sequential id
// every call should produce a unique value or an error
func (s *Connection) getNextStreamId() spdy.StreamId {
sid := s.nextStreamId
if sid > 0x7fffffff {
return 0
}
s.nextStreamId = s.nextStreamId + 2
return sid
}
// PeekNextStreamId returns the next sequential id and keeps the next id untouched
func (s *Connection) PeekNextStreamId() spdy.StreamId {
sid := s.nextStreamId
return sid
}
func (s *Connection) validateStreamId(rid spdy.StreamId) error {
if rid > 0x7fffffff || rid < s.receivedStreamId {
return ErrInvalidStreamId
}
s.receivedStreamId = rid + 2
return nil
}
func (s *Connection) addStream(stream *Stream) {
s.streamCond.L.Lock()
s.streams[stream.streamId] = stream
debugMessage("(%p) (%p) Stream added, broadcasting: %d", s, stream, stream.streamId)
s.streamCond.Broadcast()
s.streamCond.L.Unlock()
}
func (s *Connection) removeStream(stream *Stream) {
s.streamCond.L.Lock()
delete(s.streams, stream.streamId)
debugMessage("(%p) (%p) Stream removed, broadcasting: %d", s, stream, stream.streamId)
s.streamCond.Broadcast()
s.streamCond.L.Unlock()
}
func (s *Connection) getStream(streamId spdy.StreamId) (stream *Stream, ok bool) {
s.streamLock.RLock()
stream, ok = s.streams[streamId]
s.streamLock.RUnlock()
return
}
// FindStream looks up the given stream id and either waits for the
// stream to be found or returns nil if the stream id is no longer
// valid.
func (s *Connection) FindStream(streamId uint32) *Stream {
var stream *Stream
var ok bool
s.streamCond.L.Lock()
stream, ok = s.streams[spdy.StreamId(streamId)]
debugMessage("(%p) Found stream %d? %t", s, spdy.StreamId(streamId), ok)
for !ok && streamId >= uint32(s.receivedStreamId) {
s.streamCond.Wait()
stream, ok = s.streams[spdy.StreamId(streamId)]
}
s.streamCond.L.Unlock()
return stream
}
func (s *Connection) CloseChan() <-chan bool {
return s.closeChan
}

36
vendor/github.com/docker/spdystream/handlers.go generated vendored
View File

@ -1,36 +0,0 @@
package spdystream
import (
"io"
"net/http"
)
// MirrorStreamHandler mirrors all streams.
func MirrorStreamHandler(stream *Stream) {
replyErr := stream.SendReply(http.Header{}, false)
if replyErr != nil {
return
}
go func() {
io.Copy(stream, stream)
stream.Close()
}()
go func() {
for {
header, receiveErr := stream.ReceiveHeader()
if receiveErr != nil {
return
}
sendErr := stream.SendHeader(header, false)
if sendErr != nil {
return
}
}
}()
}
// NoopStreamHandler does nothing when stream connects.
func NoOpStreamHandler(stream *Stream) {
stream.SendReply(http.Header{}, false)
}

98
vendor/github.com/docker/spdystream/priority.go generated vendored
View File

@ -1,98 +0,0 @@
package spdystream
import (
"container/heap"
"sync"
"github.com/docker/spdystream/spdy"
)
type prioritizedFrame struct {
frame spdy.Frame
priority uint8
insertId uint64
}
type frameQueue []*prioritizedFrame
func (fq frameQueue) Len() int {
return len(fq)
}
func (fq frameQueue) Less(i, j int) bool {
if fq[i].priority == fq[j].priority {
return fq[i].insertId < fq[j].insertId
}
return fq[i].priority < fq[j].priority
}
func (fq frameQueue) Swap(i, j int) {
fq[i], fq[j] = fq[j], fq[i]
}
func (fq *frameQueue) Push(x interface{}) {
*fq = append(*fq, x.(*prioritizedFrame))
}
func (fq *frameQueue) Pop() interface{} {
old := *fq
n := len(old)
*fq = old[0 : n-1]
return old[n-1]
}
type PriorityFrameQueue struct {
queue *frameQueue
c *sync.Cond
size int
nextInsertId uint64
drain bool
}
func NewPriorityFrameQueue(size int) *PriorityFrameQueue {
queue := make(frameQueue, 0, size)
heap.Init(&queue)
return &PriorityFrameQueue{
queue: &queue,
size: size,
c: sync.NewCond(&sync.Mutex{}),
}
}
func (q *PriorityFrameQueue) Push(frame spdy.Frame, priority uint8) {
q.c.L.Lock()
defer q.c.L.Unlock()
for q.queue.Len() >= q.size {
q.c.Wait()
}
pFrame := &prioritizedFrame{
frame: frame,
priority: priority,
insertId: q.nextInsertId,
}
q.nextInsertId = q.nextInsertId + 1
heap.Push(q.queue, pFrame)
q.c.Signal()
}
func (q *PriorityFrameQueue) Pop() spdy.Frame {
q.c.L.Lock()
defer q.c.L.Unlock()
for q.queue.Len() == 0 {
if q.drain {
return nil
}
q.c.Wait()
}
frame := heap.Pop(q.queue).(*prioritizedFrame).frame
q.c.Signal()
return frame
}
func (q *PriorityFrameQueue) Drain() {
q.c.L.Lock()
defer q.c.L.Unlock()
q.drain = true
q.c.Broadcast()
}

187
vendor/github.com/docker/spdystream/spdy/dictionary.go generated vendored
View File

@ -1,187 +0,0 @@
// 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{
0x00, 0x00, 0x00, 0x07, 0x6f, 0x70, 0x74, 0x69,
0x6f, 0x6e, 0x73, 0x00, 0x00, 0x00, 0x04, 0x68,
0x65, 0x61, 0x64, 0x00, 0x00, 0x00, 0x04, 0x70,
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}

348
vendor/github.com/docker/spdystream/spdy/read.go generated vendored
View File

@ -1,348 +0,0 @@
// 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 (
"compress/zlib"
"encoding/binary"
"io"
"net/http"
"strings"
)
func (frame *SynStreamFrame) read(h ControlFrameHeader, f *Framer) error {
return f.readSynStreamFrame(h, frame)
}
func (frame *SynReplyFrame) read(h ControlFrameHeader, f *Framer) error {
return f.readSynReplyFrame(h, frame)
}
func (frame *RstStreamFrame) read(h ControlFrameHeader, f *Framer) error {
frame.CFHeader = h
if err := binary.Read(f.r, binary.BigEndian, &frame.StreamId); err != nil {
return err
}
if err := binary.Read(f.r, binary.BigEndian, &frame.Status); err != nil {
return err
}
if frame.Status == 0 {
return &Error{InvalidControlFrame, frame.StreamId}
}
if frame.StreamId == 0 {
return &Error{ZeroStreamId, 0}
}
return nil
}
func (frame *SettingsFrame) read(h ControlFrameHeader, f *Framer) error {
frame.CFHeader = h
var numSettings uint32
if err := binary.Read(f.r, binary.BigEndian, &numSettings); err != nil {
return err
}
frame.FlagIdValues = make([]SettingsFlagIdValue, numSettings)
for i := uint32(0); i < numSettings; i++ {
if err := binary.Read(f.r, binary.BigEndian, &frame.FlagIdValues[i].Id); err != nil {
return err
}
frame.FlagIdValues[i].Flag = SettingsFlag((frame.FlagIdValues[i].Id & 0xff000000) >> 24)
frame.FlagIdValues[i].Id &= 0xffffff
if err := binary.Read(f.r, binary.BigEndian, &frame.FlagIdValues[i].Value); err != nil {
return err
}
}
return nil
}
func (frame *PingFrame) read(h ControlFrameHeader, f *Framer) error {
frame.CFHeader = h
if err := binary.Read(f.r, binary.BigEndian, &frame.Id); err != nil {
return err
}
if frame.Id == 0 {
return &Error{ZeroStreamId, 0}
}
if frame.CFHeader.Flags != 0 {
return &Error{InvalidControlFrame, StreamId(frame.Id)}
}
return nil
}
func (frame *GoAwayFrame) read(h ControlFrameHeader, f *Framer) error {
frame.CFHeader = h
if err := binary.Read(f.r, binary.BigEndian, &frame.LastGoodStreamId); err != nil {
return err
}
if frame.CFHeader.Flags != 0 {
return &Error{InvalidControlFrame, frame.LastGoodStreamId}
}
if frame.CFHeader.length != 8 {
return &Error{InvalidControlFrame, frame.LastGoodStreamId}
}
if err := binary.Read(f.r, binary.BigEndian, &frame.Status); err != nil {
return err
}
return nil
}
func (frame *HeadersFrame) read(h ControlFrameHeader, f *Framer) error {
return f.readHeadersFrame(h, frame)
}
func (frame *WindowUpdateFrame) read(h ControlFrameHeader, f *Framer) error {
frame.CFHeader = h
if err := binary.Read(f.r, binary.BigEndian, &frame.StreamId); err != nil {
return err
}
if frame.CFHeader.Flags != 0 {
return &Error{InvalidControlFrame, frame.StreamId}
}
if frame.CFHeader.length != 8 {
return &Error{InvalidControlFrame, frame.StreamId}
}
if err := binary.Read(f.r, binary.BigEndian, &frame.DeltaWindowSize); err != nil {
return err
}
return nil
}
func newControlFrame(frameType ControlFrameType) (controlFrame, error) {
ctor, ok := cframeCtor[frameType]
if !ok {
return nil, &Error{Err: InvalidControlFrame}
}
return ctor(), nil
}
var cframeCtor = map[ControlFrameType]func() controlFrame{
TypeSynStream: func() controlFrame { return new(SynStreamFrame) },
TypeSynReply: func() controlFrame { return new(SynReplyFrame) },
TypeRstStream: func() controlFrame { return new(RstStreamFrame) },
TypeSettings: func() controlFrame { return new(SettingsFrame) },
TypePing: func() controlFrame { return new(PingFrame) },
TypeGoAway: func() controlFrame { return new(GoAwayFrame) },
TypeHeaders: func() controlFrame { return new(HeadersFrame) },
TypeWindowUpdate: func() controlFrame { return new(WindowUpdateFrame) },
}
func (f *Framer) uncorkHeaderDecompressor(payloadSize int64) error {
if f.headerDecompressor != nil {
f.headerReader.N = payloadSize
return nil
}
f.headerReader = io.LimitedReader{R: f.r, N: payloadSize}
decompressor, err := zlib.NewReaderDict(&f.headerReader, []byte(headerDictionary))
if err != nil {
return err
}
f.headerDecompressor = decompressor
return nil
}
// ReadFrame reads SPDY encoded data and returns a decompressed Frame.
func (f *Framer) ReadFrame() (Frame, error) {
var firstWord uint32
if err := binary.Read(f.r, binary.BigEndian, &firstWord); err != nil {
return nil, err
}
if firstWord&0x80000000 != 0 {
frameType := ControlFrameType(firstWord & 0xffff)
version := uint16(firstWord >> 16 & 0x7fff)
return f.parseControlFrame(version, frameType)
}
return f.parseDataFrame(StreamId(firstWord & 0x7fffffff))
}
func (f *Framer) parseControlFrame(version uint16, frameType ControlFrameType) (Frame, error) {
var length uint32
if err := binary.Read(f.r, binary.BigEndian, &length); err != nil {
return nil, err
}
flags := ControlFlags((length & 0xff000000) >> 24)
length &= 0xffffff
header := ControlFrameHeader{version, frameType, flags, length}
cframe, err := newControlFrame(frameType)
if err != nil {
return nil, err
}
if err = cframe.read(header, f); err != nil {
return nil, err
}
return cframe, nil
}
func parseHeaderValueBlock(r io.Reader, streamId StreamId) (http.Header, error) {
var numHeaders uint32
if err := binary.Read(r, binary.BigEndian, &numHeaders); err != nil {
return nil, err
}
var e error
h := make(http.Header, int(numHeaders))
for i := 0; i < int(numHeaders); i++ {
var length uint32
if err := binary.Read(r, binary.BigEndian, &length); err != nil {
return nil, err
}
nameBytes := make([]byte, length)
if _, err := io.ReadFull(r, nameBytes); err != nil {
return nil, err
}
name := string(nameBytes)
if name != strings.ToLower(name) {
e = &Error{UnlowercasedHeaderName, streamId}
name = strings.ToLower(name)
}
if h[name] != nil {
e = &Error{DuplicateHeaders, streamId}
}
if err := binary.Read(r, binary.BigEndian, &length); err != nil {
return nil, err
}
value := make([]byte, length)
if _, err := io.ReadFull(r, value); err != nil {
return nil, err
}
valueList := strings.Split(string(value), headerValueSeparator)
for _, v := range valueList {
h.Add(name, v)
}
}
if e != nil {
return h, e
}
return h, nil
}
func (f *Framer) readSynStreamFrame(h ControlFrameHeader, frame *SynStreamFrame) error {
frame.CFHeader = h
var err error
if err = binary.Read(f.r, binary.BigEndian, &frame.StreamId); err != nil {
return err
}
if err = binary.Read(f.r, binary.BigEndian, &frame.AssociatedToStreamId); err != nil {
return err
}
if err = binary.Read(f.r, binary.BigEndian, &frame.Priority); err != nil {
return err
}
frame.Priority >>= 5
if err = binary.Read(f.r, binary.BigEndian, &frame.Slot); err != nil {
return err
}
reader := f.r
if !f.headerCompressionDisabled {
err := f.uncorkHeaderDecompressor(int64(h.length - 10))
if err != nil {
return err
}
reader = f.headerDecompressor
}
frame.Headers, err = parseHeaderValueBlock(reader, frame.StreamId)
if !f.headerCompressionDisabled && (err == io.EOF && f.headerReader.N == 0 || f.headerReader.N != 0) {
err = &Error{WrongCompressedPayloadSize, 0}
}
if err != nil {
return err
}
for h := range frame.Headers {
if invalidReqHeaders[h] {
return &Error{InvalidHeaderPresent, frame.StreamId}
}
}
if frame.StreamId == 0 {
return &Error{ZeroStreamId, 0}
}
return nil
}
func (f *Framer) readSynReplyFrame(h ControlFrameHeader, frame *SynReplyFrame) error {
frame.CFHeader = h
var err error
if err = binary.Read(f.r, binary.BigEndian, &frame.StreamId); err != nil {
return err
}
reader := f.r
if !f.headerCompressionDisabled {
err := f.uncorkHeaderDecompressor(int64(h.length - 4))
if err != nil {
return err
}
reader = f.headerDecompressor
}
frame.Headers, err = parseHeaderValueBlock(reader, frame.StreamId)
if !f.headerCompressionDisabled && (err == io.EOF && f.headerReader.N == 0 || f.headerReader.N != 0) {
err = &Error{WrongCompressedPayloadSize, 0}
}
if err != nil {
return err
}
for h := range frame.Headers {
if invalidRespHeaders[h] {
return &Error{InvalidHeaderPresent, frame.StreamId}
}
}
if frame.StreamId == 0 {
return &Error{ZeroStreamId, 0}
}
return nil
}
func (f *Framer) readHeadersFrame(h ControlFrameHeader, frame *HeadersFrame) error {
frame.CFHeader = h
var err error
if err = binary.Read(f.r, binary.BigEndian, &frame.StreamId); err != nil {
return err
}
reader := f.r
if !f.headerCompressionDisabled {
err := f.uncorkHeaderDecompressor(int64(h.length - 4))
if err != nil {
return err
}
reader = f.headerDecompressor
}
frame.Headers, err = parseHeaderValueBlock(reader, frame.StreamId)
if !f.headerCompressionDisabled && (err == io.EOF && f.headerReader.N == 0 || f.headerReader.N != 0) {
err = &Error{WrongCompressedPayloadSize, 0}
}
if err != nil {
return err
}
var invalidHeaders map[string]bool
if frame.StreamId%2 == 0 {
invalidHeaders = invalidReqHeaders
} else {
invalidHeaders = invalidRespHeaders
}
for h := range frame.Headers {
if invalidHeaders[h] {
return &Error{InvalidHeaderPresent, frame.StreamId}
}
}
if frame.StreamId == 0 {
return &Error{ZeroStreamId, 0}
}
return nil
}
func (f *Framer) parseDataFrame(streamId StreamId) (*DataFrame, error) {
var length uint32
if err := binary.Read(f.r, binary.BigEndian, &length); err != nil {
return nil, err
}
var frame DataFrame
frame.StreamId = streamId
frame.Flags = DataFlags(length >> 24)
length &= 0xffffff
frame.Data = make([]byte, length)
if _, err := io.ReadFull(f.r, frame.Data); err != nil {
return nil, err
}
if frame.StreamId == 0 {
return nil, &Error{ZeroStreamId, 0}
}
return &frame, nil
}

275
vendor/github.com/docker/spdystream/spdy/types.go generated vendored
View File

@ -1,275 +0,0 @@
// 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
}

318
vendor/github.com/docker/spdystream/spdy/write.go generated vendored
View File

@ -1,318 +0,0 @@
// 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
}

327
vendor/github.com/docker/spdystream/stream.go generated vendored
View File

@ -1,327 +0,0 @@
package spdystream
import (
"errors"
"fmt"
"io"
"net"
"net/http"
"sync"
"time"
"github.com/docker/spdystream/spdy"
)
var (
ErrUnreadPartialData = errors.New("unread partial data")
)
type Stream struct {
streamId spdy.StreamId
parent *Stream
conn *Connection
startChan chan error
dataLock sync.RWMutex
dataChan chan []byte
unread []byte
priority uint8
headers http.Header
headerChan chan http.Header
finishLock sync.Mutex
finished bool
replyCond *sync.Cond
replied bool
closeLock sync.Mutex
closeChan chan bool
}
// WriteData writes data to stream, sending a dataframe per call
func (s *Stream) WriteData(data []byte, fin bool) error {
s.waitWriteReply()
var flags spdy.DataFlags
if fin {
flags = spdy.DataFlagFin
s.finishLock.Lock()
if s.finished {
s.finishLock.Unlock()
return ErrWriteClosedStream
}
s.finished = true
s.finishLock.Unlock()
}
dataFrame := &spdy.DataFrame{
StreamId: s.streamId,
Flags: flags,
Data: data,
}
debugMessage("(%p) (%d) Writing data frame", s, s.streamId)
return s.conn.framer.WriteFrame(dataFrame)
}
// Write writes bytes to a stream, calling write data for each call.
func (s *Stream) Write(data []byte) (n int, err error) {
err = s.WriteData(data, false)
if err == nil {
n = len(data)
}
return
}
// Read reads bytes from a stream, a single read will never get more
// than what is sent on a single data frame, but a multiple calls to
// read may get data from the same data frame.
func (s *Stream) Read(p []byte) (n int, err error) {
if s.unread == nil {
select {
case <-s.closeChan:
return 0, io.EOF
case read, ok := <-s.dataChan:
if !ok {
return 0, io.EOF
}
s.unread = read
}
}
n = copy(p, s.unread)
if n < len(s.unread) {
s.unread = s.unread[n:]
} else {
s.unread = nil
}
return
}
// ReadData reads an entire data frame and returns the byte array
// from the data frame. If there is unread data from the result
// of a Read call, this function will return an ErrUnreadPartialData.
func (s *Stream) ReadData() ([]byte, error) {
debugMessage("(%p) Reading data from %d", s, s.streamId)
if s.unread != nil {
return nil, ErrUnreadPartialData
}
select {
case <-s.closeChan:
return nil, io.EOF
case read, ok := <-s.dataChan:
if !ok {
return nil, io.EOF
}
return read, nil
}
}
func (s *Stream) waitWriteReply() {
if s.replyCond != nil {
s.replyCond.L.Lock()
for !s.replied {
s.replyCond.Wait()
}
s.replyCond.L.Unlock()
}
}
// Wait waits for the stream to receive a reply.
func (s *Stream) Wait() error {
return s.WaitTimeout(time.Duration(0))
}
// WaitTimeout waits for the stream to receive a reply or for timeout.
// When the timeout is reached, ErrTimeout will be returned.
func (s *Stream) WaitTimeout(timeout time.Duration) error {
var timeoutChan <-chan time.Time
if timeout > time.Duration(0) {
timeoutChan = time.After(timeout)
}
select {
case err := <-s.startChan:
if err != nil {
return err
}
break
case <-timeoutChan:
return ErrTimeout
}
return nil
}
// Close closes the stream by sending an empty data frame with the
// finish flag set, indicating this side is finished with the stream.
func (s *Stream) Close() error {
select {
case <-s.closeChan:
// Stream is now fully closed
s.conn.removeStream(s)
default:
break
}
return s.WriteData([]byte{}, true)
}
// Reset sends a reset frame, putting the stream into the fully closed state.
func (s *Stream) Reset() error {
s.conn.removeStream(s)
return s.resetStream()
}
func (s *Stream) resetStream() error {
// Always call closeRemoteChannels, even if s.finished is already true.
// This makes it so that stream.Close() followed by stream.Reset() allows
// stream.Read() to unblock.
s.closeRemoteChannels()
s.finishLock.Lock()
if s.finished {
s.finishLock.Unlock()
return nil
}
s.finished = true
s.finishLock.Unlock()
resetFrame := &spdy.RstStreamFrame{
StreamId: s.streamId,
Status: spdy.Cancel,
}
return s.conn.framer.WriteFrame(resetFrame)
}
// CreateSubStream creates a stream using the current as the parent
func (s *Stream) CreateSubStream(headers http.Header, fin bool) (*Stream, error) {
return s.conn.CreateStream(headers, s, fin)
}
// SetPriority sets the stream priority, does not affect the
// remote priority of this stream after Open has been called.
// Valid values are 0 through 7, 0 being the highest priority
// and 7 the lowest.
func (s *Stream) SetPriority(priority uint8) {
s.priority = priority
}
// SendHeader sends a header frame across the stream
func (s *Stream) SendHeader(headers http.Header, fin bool) error {
return s.conn.sendHeaders(headers, s, fin)
}
// SendReply sends a reply on a stream, only valid to be called once
// when handling a new stream
func (s *Stream) SendReply(headers http.Header, fin bool) error {
if s.replyCond == nil {
return errors.New("cannot reply on initiated stream")
}
s.replyCond.L.Lock()
defer s.replyCond.L.Unlock()
if s.replied {
return nil
}
err := s.conn.sendReply(headers, s, fin)
if err != nil {
return err
}
s.replied = true
s.replyCond.Broadcast()
return nil
}
// Refuse sends a reset frame with the status refuse, only
// valid to be called once when handling a new stream. This
// may be used to indicate that a stream is not allowed
// when http status codes are not being used.
func (s *Stream) Refuse() error {
if s.replied {
return nil
}
s.replied = true
return s.conn.sendReset(spdy.RefusedStream, s)
}
// Cancel sends a reset frame with the status canceled. This
// can be used at any time by the creator of the Stream to
// indicate the stream is no longer needed.
func (s *Stream) Cancel() error {
return s.conn.sendReset(spdy.Cancel, s)
}
// ReceiveHeader receives a header sent on the other side
// of the stream. This function will block until a header
// is received or stream is closed.
func (s *Stream) ReceiveHeader() (http.Header, error) {
select {
case <-s.closeChan:
break
case header, ok := <-s.headerChan:
if !ok {
return nil, fmt.Errorf("header chan closed")
}
return header, nil
}
return nil, fmt.Errorf("stream closed")
}
// Parent returns the parent stream
func (s *Stream) Parent() *Stream {
return s.parent
}
// Headers returns the headers used to create the stream
func (s *Stream) Headers() http.Header {
return s.headers
}
// String returns the string version of stream using the
// streamId to uniquely identify the stream
func (s *Stream) String() string {
return fmt.Sprintf("stream:%d", s.streamId)
}
// Identifier returns a 32 bit identifier for the stream
func (s *Stream) Identifier() uint32 {
return uint32(s.streamId)
}
// IsFinished returns whether the stream has finished
// sending data
func (s *Stream) IsFinished() bool {
return s.finished
}
// Implement net.Conn interface
func (s *Stream) LocalAddr() net.Addr {
return s.conn.conn.LocalAddr()
}
func (s *Stream) RemoteAddr() net.Addr {
return s.conn.conn.RemoteAddr()
}
// TODO set per stream values instead of connection-wide
func (s *Stream) SetDeadline(t time.Time) error {
return s.conn.conn.SetDeadline(t)
}
func (s *Stream) SetReadDeadline(t time.Time) error {
return s.conn.conn.SetReadDeadline(t)
}
func (s *Stream) SetWriteDeadline(t time.Time) error {
return s.conn.conn.SetWriteDeadline(t)
}
func (s *Stream) closeRemoteChannels() {
s.closeLock.Lock()
defer s.closeLock.Unlock()
select {
case <-s.closeChan:
default:
close(s.closeChan)
}
}

16
vendor/github.com/docker/spdystream/utils.go generated vendored
View File

@ -1,16 +0,0 @@
package spdystream
import (
"log"
"os"
)
var (
DEBUG = os.Getenv("DEBUG")
)
func debugMessage(fmt string, args ...interface{}) {
if DEBUG != "" {
log.Printf(fmt, args...)
}
}