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Code Issues Packages Projects Releases 1 Wiki Activity

vendor: update buildkit to opentelemetry support

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Signed-off-by: Tonis Tiigi <tonistiigi@gmail.com>
This commit is contained in:
Tonis Tiigi
2021-06-15 21:02:39 -07:00
parent 6ba080d337
commit 334c93fbbe
829 changed files with 89541 additions and 24438 deletions
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4
vendor/google.golang.org/grpc/internal/binarylog/binarylog.go generated vendored
View File

@ -40,6 +40,8 @@ type Logger interface {
// It is used to get a methodLogger for each individual method.
var binLogger Logger
var grpclogLogger = grpclog.Component("binarylog")
// SetLogger sets the binarg logger.
//
// Only call this at init time.
@ -149,7 +151,7 @@ func (l *logger) setBlacklist(method string) error {
func (l *logger) getMethodLogger(methodName string) *MethodLogger {
s, m, err := grpcutil.ParseMethod(methodName)
if err != nil {
grpclog.Infof("binarylogging: failed to parse %q: %v", methodName, err)
grpclogLogger.Infof("binarylogging: failed to parse %q: %v", methodName, err)
return nil
}
if ml, ok := l.methods[s+"/"+m]; ok {

4
vendor/google.golang.org/grpc/internal/binarylog/env_config.go generated vendored
View File

@ -24,8 +24,6 @@ import (
"regexp"
"strconv"
"strings"
"google.golang.org/grpc/grpclog"
)
// NewLoggerFromConfigString reads the string and build a logger. It can be used
@ -52,7 +50,7 @@ func NewLoggerFromConfigString(s string) Logger {
methods := strings.Split(s, ",")
for _, method := range methods {
if err := l.fillMethodLoggerWithConfigString(method); err != nil {
grpclog.Warningf("failed to parse binary log config: %v", err)
grpclogLogger.Warningf("failed to parse binary log config: %v", err)
return nil
}
}

15
vendor/google.golang.org/grpc/internal/binarylog/method_logger.go generated vendored
View File

@ -27,7 +27,6 @@ import (
"github.com/golang/protobuf/proto"
"github.com/golang/protobuf/ptypes"
pb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/status"
)
@ -66,7 +65,7 @@ func newMethodLogger(h, m uint64) *MethodLogger {
callID: idGen.next(),
idWithinCallGen: &callIDGenerator{},
sink: defaultSink, // TODO(blog): make it plugable.
sink: DefaultSink, // TODO(blog): make it plugable.
}
}
@ -219,12 +218,12 @@ func (c *ClientMessage) toProto() *pb.GrpcLogEntry {
if m, ok := c.Message.(proto.Message); ok {
data, err = proto.Marshal(m)
if err != nil {
grpclog.Infof("binarylogging: failed to marshal proto message: %v", err)
grpclogLogger.Infof("binarylogging: failed to marshal proto message: %v", err)
}
} else if b, ok := c.Message.([]byte); ok {
data = b
} else {
grpclog.Infof("binarylogging: message to log is neither proto.message nor []byte")
grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
}
ret := &pb.GrpcLogEntry{
Type: pb.GrpcLogEntry_EVENT_TYPE_CLIENT_MESSAGE,
@ -259,12 +258,12 @@ func (c *ServerMessage) toProto() *pb.GrpcLogEntry {
if m, ok := c.Message.(proto.Message); ok {
data, err = proto.Marshal(m)
if err != nil {
grpclog.Infof("binarylogging: failed to marshal proto message: %v", err)
grpclogLogger.Infof("binarylogging: failed to marshal proto message: %v", err)
}
} else if b, ok := c.Message.([]byte); ok {
data = b
} else {
grpclog.Infof("binarylogging: message to log is neither proto.message nor []byte")
grpclogLogger.Infof("binarylogging: message to log is neither proto.message nor []byte")
}
ret := &pb.GrpcLogEntry{
Type: pb.GrpcLogEntry_EVENT_TYPE_SERVER_MESSAGE,
@ -315,7 +314,7 @@ type ServerTrailer struct {
func (c *ServerTrailer) toProto() *pb.GrpcLogEntry {
st, ok := status.FromError(c.Err)
if !ok {
grpclog.Info("binarylogging: error in trailer is not a status error")
grpclogLogger.Info("binarylogging: error in trailer is not a status error")
}
var (
detailsBytes []byte
@ -325,7 +324,7 @@ func (c *ServerTrailer) toProto() *pb.GrpcLogEntry {
if stProto != nil && len(stProto.Details) != 0 {
detailsBytes, err = proto.Marshal(stProto)
if err != nil {
grpclog.Infof("binarylogging: failed to marshal status proto: %v", err)
grpclogLogger.Infof("binarylogging: failed to marshal status proto: %v", err)
}
}
ret := &pb.GrpcLogEntry{

71
vendor/google.golang.org/grpc/internal/binarylog/sink.go generated vendored
View File

@ -21,32 +21,23 @@ package binarylog
import (
"bufio"
"encoding/binary"
"fmt"
"io"
"io/ioutil"
"sync"
"time"
"github.com/golang/protobuf/proto"
pb "google.golang.org/grpc/binarylog/grpc_binarylog_v1"
"google.golang.org/grpc/grpclog"
)
var (
defaultSink Sink = &noopSink{} // TODO(blog): change this default (file in /tmp).
// DefaultSink is the sink where the logs will be written to. It's exported
// for the binarylog package to update.
DefaultSink Sink = &noopSink{} // TODO(blog): change this default (file in /tmp).
)
// SetDefaultSink sets the sink where binary logs will be written to.
//
// Not thread safe. Only set during initialization.
func SetDefaultSink(s Sink) {
if defaultSink != nil {
defaultSink.Close()
}
defaultSink = s
}
// Sink writes log entry into the binary log sink.
//
// sink is a copy of the exported binarylog.Sink, to avoid circular dependency.
type Sink interface {
// Write will be called to write the log entry into the sink.
//
@ -67,7 +58,7 @@ func (ns *noopSink) Close() error { return nil }
// message is prefixed with a 4 byte big endian unsigned integer as the length.
//
// No buffer is done, Close() doesn't try to close the writer.
func newWriterSink(w io.Writer) *writerSink {
func newWriterSink(w io.Writer) Sink {
return &writerSink{out: w}
}
@ -78,7 +69,7 @@ type writerSink struct {
func (ws *writerSink) Write(e *pb.GrpcLogEntry) error {
b, err := proto.Marshal(e)
if err != nil {
grpclog.Infof("binary logging: failed to marshal proto message: %v", err)
grpclogLogger.Infof("binary logging: failed to marshal proto message: %v", err)
}
hdr := make([]byte, 4)
binary.BigEndian.PutUint32(hdr, uint32(len(b)))
@ -93,17 +84,17 @@ func (ws *writerSink) Write(e *pb.GrpcLogEntry) error {
func (ws *writerSink) Close() error { return nil }
type bufWriteCloserSink struct {
type bufferedSink struct {
mu sync.Mutex
closer io.Closer
out *writerSink // out is built on buf.
out Sink // out is built on buf.
buf *bufio.Writer // buf is kept for flush.
writeStartOnce sync.Once
writeTicker *time.Ticker
}
func (fs *bufWriteCloserSink) Write(e *pb.GrpcLogEntry) error {
func (fs *bufferedSink) Write(e *pb.GrpcLogEntry) error {
// Start the write loop when Write is called.
fs.writeStartOnce.Do(fs.startFlushGoroutine)
fs.mu.Lock()
@ -119,44 +110,50 @@ const (
bufFlushDuration = 60 * time.Second
)
func (fs *bufWriteCloserSink) startFlushGoroutine() {
func (fs *bufferedSink) startFlushGoroutine() {
fs.writeTicker = time.NewTicker(bufFlushDuration)
go func() {
for range fs.writeTicker.C {
fs.mu.Lock()
fs.buf.Flush()
if err := fs.buf.Flush(); err != nil {
grpclogLogger.Warningf("failed to flush to Sink: %v", err)
}
fs.mu.Unlock()
}
}()
}
func (fs *bufWriteCloserSink) Close() error {
func (fs *bufferedSink) Close() error {
if fs.writeTicker != nil {
fs.writeTicker.Stop()
}
fs.mu.Lock()
fs.buf.Flush()
fs.closer.Close()
fs.out.Close()
if err := fs.buf.Flush(); err != nil {
grpclogLogger.Warningf("failed to flush to Sink: %v", err)
}
if err := fs.closer.Close(); err != nil {
grpclogLogger.Warningf("failed to close the underlying WriterCloser: %v", err)
}
if err := fs.out.Close(); err != nil {
grpclogLogger.Warningf("failed to close the Sink: %v", err)
}
fs.mu.Unlock()
return nil
}
func newBufWriteCloserSink(o io.WriteCloser) Sink {
// NewBufferedSink creates a binary log sink with the given WriteCloser.
//
// Write() marshals the proto message and writes it to the given writer. Each
// message is prefixed with a 4 byte big endian unsigned integer as the length.
//
// Content is kept in a buffer, and is flushed every 60 seconds.
//
// Close closes the WriteCloser.
func NewBufferedSink(o io.WriteCloser) Sink {
bufW := bufio.NewWriter(o)
return &bufWriteCloserSink{
return &bufferedSink{
closer: o,
out: newWriterSink(bufW),
buf: bufW,
}
}
// NewTempFileSink creates a temp file and returns a Sink that writes to this
// file.
func NewTempFileSink() (Sink, error) {
tempFile, err := ioutil.TempFile("/tmp", "grpcgo_binarylog_*.txt")
if err != nil {
return nil, fmt.Errorf("failed to create temp file: %v", err)
}
return newBufWriteCloserSink(tempFile), nil
}

20
vendor/google.golang.org/grpc/internal/channelz/funcs.go generated vendored
View File

@ -30,7 +30,7 @@ import (
"sync/atomic"
"time"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/grpclog"
)
const (
@ -216,7 +216,7 @@ func RegisterChannel(c Channel, pid int64, ref string) int64 {
// by pid). It returns the unique channelz tracking id assigned to this subchannel.
func RegisterSubChannel(c Channel, pid int64, ref string) int64 {
if pid == 0 {
grpclog.ErrorDepth(0, "a SubChannel's parent id cannot be 0")
logger.Error("a SubChannel's parent id cannot be 0")
return 0
}
id := idGen.genID()
@ -253,7 +253,7 @@ func RegisterServer(s Server, ref string) int64 {
// this listen socket.
func RegisterListenSocket(s Socket, pid int64, ref string) int64 {
if pid == 0 {
grpclog.ErrorDepth(0, "a ListenSocket's parent id cannot be 0")
logger.Error("a ListenSocket's parent id cannot be 0")
return 0
}
id := idGen.genID()
@ -268,7 +268,7 @@ func RegisterListenSocket(s Socket, pid int64, ref string) int64 {
// this normal socket.
func RegisterNormalSocket(s Socket, pid int64, ref string) int64 {
if pid == 0 {
grpclog.ErrorDepth(0, "a NormalSocket's parent id cannot be 0")
logger.Error("a NormalSocket's parent id cannot be 0")
return 0
}
id := idGen.genID()
@ -294,17 +294,15 @@ type TraceEventDesc struct {
}
// AddTraceEvent adds trace related to the entity with specified id, using the provided TraceEventDesc.
func AddTraceEvent(id int64, depth int, desc *TraceEventDesc) {
func AddTraceEvent(l grpclog.DepthLoggerV2, id int64, depth int, desc *TraceEventDesc) {
for d := desc; d != nil; d = d.Parent {
switch d.Severity {
case CtUNKNOWN:
grpclog.InfoDepth(depth+1, d.Desc)
case CtINFO:
grpclog.InfoDepth(depth+1, d.Desc)
case CtUnknown, CtInfo:
l.InfoDepth(depth+1, d.Desc)
case CtWarning:
grpclog.WarningDepth(depth+1, d.Desc)
l.WarningDepth(depth+1, d.Desc)
case CtError:
grpclog.ErrorDepth(depth+1, d.Desc)
l.ErrorDepth(depth+1, d.Desc)
}
}
if getMaxTraceEntry() == 0 {

56
vendor/google.golang.org/grpc/internal/channelz/logging.go generated vendored
View File

@ -21,80 +21,82 @@ package channelz
import (
"fmt"
"google.golang.org/grpc/internal/grpclog"
"google.golang.org/grpc/grpclog"
)
// Info logs through grpclog.Info and adds a trace event if channelz is on.
func Info(id int64, args ...interface{}) {
var logger = grpclog.Component("channelz")
// Info logs and adds a trace event if channelz is on.
func Info(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtINFO,
Severity: CtInfo,
})
} else {
grpclog.InfoDepth(1, args...)
l.InfoDepth(1, args...)
}
}
// Infof logs through grpclog.Infof and adds a trace event if channelz is on.
func Infof(id int64, format string, args ...interface{}) {
// Infof logs and adds a trace event if channelz is on.
func Infof(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Severity: CtINFO,
Severity: CtInfo,
})
} else {
grpclog.InfoDepth(1, msg)
l.InfoDepth(1, msg)
}
}
// Warning logs through grpclog.Warning and adds a trace event if channelz is on.
func Warning(id int64, args ...interface{}) {
// Warning logs and adds a trace event if channelz is on.
func Warning(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtWarning,
})
} else {
grpclog.WarningDepth(1, args...)
l.WarningDepth(1, args...)
}
}
// Warningf logs through grpclog.Warningf and adds a trace event if channelz is on.
func Warningf(id int64, format string, args ...interface{}) {
// Warningf logs and adds a trace event if channelz is on.
func Warningf(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Severity: CtWarning,
})
} else {
grpclog.WarningDepth(1, msg)
l.WarningDepth(1, msg)
}
}
// Error logs through grpclog.Error and adds a trace event if channelz is on.
func Error(id int64, args ...interface{}) {
// Error logs and adds a trace event if channelz is on.
func Error(l grpclog.DepthLoggerV2, id int64, args ...interface{}) {
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: fmt.Sprint(args...),
Severity: CtError,
})
} else {
grpclog.ErrorDepth(1, args...)
l.ErrorDepth(1, args...)
}
}
// Errorf logs through grpclog.Errorf and adds a trace event if channelz is on.
func Errorf(id int64, format string, args ...interface{}) {
// Errorf logs and adds a trace event if channelz is on.
func Errorf(l grpclog.DepthLoggerV2, id int64, format string, args ...interface{}) {
msg := fmt.Sprintf(format, args...)
if IsOn() {
AddTraceEvent(id, 1, &TraceEventDesc{
AddTraceEvent(l, id, 1, &TraceEventDesc{
Desc: msg,
Severity: CtError,
})
} else {
grpclog.ErrorDepth(1, msg)
l.ErrorDepth(1, msg)
}
}

33
vendor/google.golang.org/grpc/internal/channelz/types.go generated vendored
View File

@ -26,7 +26,6 @@ import (
"google.golang.org/grpc/connectivity"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
)
// entry represents a node in the channelz database.
@ -60,17 +59,17 @@ func (d *dummyEntry) addChild(id int64, e entry) {
// the addrConn will create a new transport. And when registering the new transport in
// channelz, its parent addrConn could have already been torn down and deleted
// from channelz tracking, and thus reach the code here.
grpclog.Infof("attempt to add child of type %T with id %d to a parent (id=%d) that doesn't currently exist", e, id, d.idNotFound)
logger.Infof("attempt to add child of type %T with id %d to a parent (id=%d) that doesn't currently exist", e, id, d.idNotFound)
}
func (d *dummyEntry) deleteChild(id int64) {
// It is possible for a normal program to reach here under race condition.
// Refer to the example described in addChild().
grpclog.Infof("attempt to delete child with id %d from a parent (id=%d) that doesn't currently exist", id, d.idNotFound)
logger.Infof("attempt to delete child with id %d from a parent (id=%d) that doesn't currently exist", id, d.idNotFound)
}
func (d *dummyEntry) triggerDelete() {
grpclog.Warningf("attempt to delete an entry (id=%d) that doesn't currently exist", d.idNotFound)
logger.Warningf("attempt to delete an entry (id=%d) that doesn't currently exist", d.idNotFound)
}
func (*dummyEntry) deleteSelfIfReady() {
@ -215,7 +214,7 @@ func (c *channel) addChild(id int64, e entry) {
case *channel:
c.nestedChans[id] = v.refName
default:
grpclog.Errorf("cannot add a child (id = %d) of type %T to a channel", id, e)
logger.Errorf("cannot add a child (id = %d) of type %T to a channel", id, e)
}
}
@ -326,7 +325,7 @@ func (sc *subChannel) addChild(id int64, e entry) {
if v, ok := e.(*normalSocket); ok {
sc.sockets[id] = v.refName
} else {
grpclog.Errorf("cannot add a child (id = %d) of type %T to a subChannel", id, e)
logger.Errorf("cannot add a child (id = %d) of type %T to a subChannel", id, e)
}
}
@ -493,11 +492,11 @@ type listenSocket struct {
}
func (ls *listenSocket) addChild(id int64, e entry) {
grpclog.Errorf("cannot add a child (id = %d) of type %T to a listen socket", id, e)
logger.Errorf("cannot add a child (id = %d) of type %T to a listen socket", id, e)
}
func (ls *listenSocket) deleteChild(id int64) {
grpclog.Errorf("cannot delete a child (id = %d) from a listen socket", id)
logger.Errorf("cannot delete a child (id = %d) from a listen socket", id)
}
func (ls *listenSocket) triggerDelete() {
@ -506,7 +505,7 @@ func (ls *listenSocket) triggerDelete() {
}
func (ls *listenSocket) deleteSelfIfReady() {
grpclog.Errorf("cannot call deleteSelfIfReady on a listen socket")
logger.Errorf("cannot call deleteSelfIfReady on a listen socket")
}
func (ls *listenSocket) getParentID() int64 {
@ -522,11 +521,11 @@ type normalSocket struct {
}
func (ns *normalSocket) addChild(id int64, e entry) {
grpclog.Errorf("cannot add a child (id = %d) of type %T to a normal socket", id, e)
logger.Errorf("cannot add a child (id = %d) of type %T to a normal socket", id, e)
}
func (ns *normalSocket) deleteChild(id int64) {
grpclog.Errorf("cannot delete a child (id = %d) from a normal socket", id)
logger.Errorf("cannot delete a child (id = %d) from a normal socket", id)
}
func (ns *normalSocket) triggerDelete() {
@ -535,7 +534,7 @@ func (ns *normalSocket) triggerDelete() {
}
func (ns *normalSocket) deleteSelfIfReady() {
grpclog.Errorf("cannot call deleteSelfIfReady on a normal socket")
logger.Errorf("cannot call deleteSelfIfReady on a normal socket")
}
func (ns *normalSocket) getParentID() int64 {
@ -594,7 +593,7 @@ func (s *server) addChild(id int64, e entry) {
case *listenSocket:
s.listenSockets[id] = v.refName
default:
grpclog.Errorf("cannot add a child (id = %d) of type %T to a server", id, e)
logger.Errorf("cannot add a child (id = %d) of type %T to a server", id, e)
}
}
@ -673,10 +672,10 @@ func (c *channelTrace) clear() {
type Severity int
const (
// CtUNKNOWN indicates unknown severity of a trace event.
CtUNKNOWN Severity = iota
// CtINFO indicates info level severity of a trace event.
CtINFO
// CtUnknown indicates unknown severity of a trace event.
CtUnknown Severity = iota
// CtInfo indicates info level severity of a trace event.
CtInfo
// CtWarning indicates warning level severity of a trace event.
CtWarning
// CtError indicates error level severity of a trace event.

4
vendor/google.golang.org/grpc/internal/channelz/types_nonlinux.go generated vendored
View File

@ -22,8 +22,6 @@ package channelz
import (
"sync"
"google.golang.org/grpc/grpclog"
)
var once sync.Once
@ -39,6 +37,6 @@ type SocketOptionData struct {
// Windows OS doesn't support Socket Option
func (s *SocketOptionData) Getsockopt(fd uintptr) {
once.Do(func() {
grpclog.Warningln("Channelz: socket options are not supported on non-linux os and appengine.")
logger.Warning("Channelz: socket options are not supported on non-linux os and appengine.")
})
}

49
vendor/google.golang.org/grpc/internal/credentials/credentials.go generated vendored Normal file
View File

@ -0,0 +1,49 @@
/*
* Copyright 2021 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package credentials
import (
"context"
)
// requestInfoKey is a struct to be used as the key to store RequestInfo in a
// context.
type requestInfoKey struct{}
// NewRequestInfoContext creates a context with ri.
func NewRequestInfoContext(ctx context.Context, ri interface{}) context.Context {
return context.WithValue(ctx, requestInfoKey{}, ri)
}
// RequestInfoFromContext extracts the RequestInfo from ctx.
func RequestInfoFromContext(ctx context.Context) interface{} {
return ctx.Value(requestInfoKey{})
}
// clientHandshakeInfoKey is a struct used as the key to store
// ClientHandshakeInfo in a context.
type clientHandshakeInfoKey struct{}
// ClientHandshakeInfoFromContext extracts the ClientHandshakeInfo from ctx.
func ClientHandshakeInfoFromContext(ctx context.Context) interface{} {
return ctx.Value(clientHandshakeInfoKey{})
}
// NewClientHandshakeInfoContext creates a context with chi.
func NewClientHandshakeInfoContext(ctx context.Context, chi interface{}) context.Context {
return context.WithValue(ctx, clientHandshakeInfoKey{}, chi)
}

77
vendor/google.golang.org/grpc/internal/credentials/spiffe.go generated vendored Normal file
View File

@ -0,0 +1,77 @@
// +build !appengine
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package credentials defines APIs for parsing SPIFFE ID.
//
// All APIs in this package are experimental.
package credentials
import (
"crypto/tls"
"crypto/x509"
"net/url"
"google.golang.org/grpc/grpclog"
)
var logger = grpclog.Component("credentials")
// SPIFFEIDFromState parses the SPIFFE ID from State. If the SPIFFE ID format
// is invalid, return nil with warning.
func SPIFFEIDFromState(state tls.ConnectionState) *url.URL {
if len(state.PeerCertificates) == 0 || len(state.PeerCertificates[0].URIs) == 0 {
return nil
}
return SPIFFEIDFromCert(state.PeerCertificates[0])
}
// SPIFFEIDFromCert parses the SPIFFE ID from x509.Certificate. If the SPIFFE
// ID format is invalid, return nil with warning.
func SPIFFEIDFromCert(cert *x509.Certificate) *url.URL {
if cert == nil || cert.URIs == nil {
return nil
}
var spiffeID *url.URL
for _, uri := range cert.URIs {
if uri == nil || uri.Scheme != "spiffe" || uri.Opaque != "" || (uri.User != nil && uri.User.Username() != "") {
continue
}
// From this point, we assume the uri is intended for a SPIFFE ID.
if len(uri.String()) > 2048 {
logger.Warning("invalid SPIFFE ID: total ID length larger than 2048 bytes")
return nil
}
if len(uri.Host) == 0 || len(uri.Path) == 0 {
logger.Warning("invalid SPIFFE ID: domain or workload ID is empty")
return nil
}
if len(uri.Host) > 255 {
logger.Warning("invalid SPIFFE ID: domain length larger than 255 characters")
return nil
}
// A valid SPIFFE certificate can only have exactly one URI SAN field.
if len(cert.URIs) > 1 {
logger.Warning("invalid SPIFFE ID: multiple URI SANs")
return nil
}
spiffeID = uri
}
return spiffeID
}

35
vendor/google.golang.org/grpc/internal/transport/log.go → vendor/google.golang.org/grpc/internal/credentials/spiffe_appengine.go generated vendored
View File

@ -1,6 +1,8 @@
// +build appengine
/*
*
* Copyright 2017 gRPC authors.
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@ -16,29 +18,14 @@
*
*/
// This file contains wrappers for grpclog functions.
// The transport package only logs to verbose level 2 by default.
package credentials
package transport
import (
"crypto/tls"
"net/url"
)
import "google.golang.org/grpc/grpclog"
const logLevel = 2
func infof(format string, args ...interface{}) {
if grpclog.V(logLevel) {
grpclog.Infof(format, args...)
}
}
func warningf(format string, args ...interface{}) {
if grpclog.V(logLevel) {
grpclog.Warningf(format, args...)
}
}
func errorf(format string, args ...interface{}) {
if grpclog.V(logLevel) {
grpclog.Errorf(format, args...)
}
// SPIFFEIDFromState is a no-op for appengine builds.
func SPIFFEIDFromState(state tls.ConnectionState) *url.URL {
return nil
}

60
vendor/google.golang.org/grpc/internal/credentials/syscallconn.go generated vendored Normal file
View File

@ -0,0 +1,60 @@
// +build !appengine
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import (
"net"
"syscall"
)
type sysConn = syscall.Conn
// syscallConn keeps reference of rawConn to support syscall.Conn for channelz.
// SyscallConn() (the method in interface syscall.Conn) is explicitly
// implemented on this type,
//
// Interface syscall.Conn is implemented by most net.Conn implementations (e.g.
// TCPConn, UnixConn), but is not part of net.Conn interface. So wrapper conns
// that embed net.Conn don't implement syscall.Conn. (Side note: tls.Conn
// doesn't embed net.Conn, so even if syscall.Conn is part of net.Conn, it won't
// help here).
type syscallConn struct {
net.Conn
// sysConn is a type alias of syscall.Conn. It's necessary because the name
// `Conn` collides with `net.Conn`.
sysConn
}
// WrapSyscallConn tries to wrap rawConn and newConn into a net.Conn that
// implements syscall.Conn. rawConn will be used to support syscall, and newConn
// will be used for read/write.
//
// This function returns newConn if rawConn doesn't implement syscall.Conn.
func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn {
sysConn, ok := rawConn.(syscall.Conn)
if !ok {
return newConn
}
return &syscallConn{
Conn: newConn,
sysConn: sysConn,
}
}

30
vendor/google.golang.org/grpc/internal/credentials/syscallconn_appengine.go generated vendored Normal file
View File

@ -0,0 +1,30 @@
// +build appengine
/*
*
* Copyright 2018 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import (
"net"
)
// WrapSyscallConn returns newConn on appengine.
func WrapSyscallConn(rawConn, newConn net.Conn) net.Conn {
return newConn
}

50
vendor/google.golang.org/grpc/internal/credentials/util.go generated vendored Normal file
View File

@ -0,0 +1,50 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package credentials
import "crypto/tls"
const alpnProtoStrH2 = "h2"
// AppendH2ToNextProtos appends h2 to next protos.
func AppendH2ToNextProtos(ps []string) []string {
for _, p := range ps {
if p == alpnProtoStrH2 {
return ps
}
}
ret := make([]string, 0, len(ps)+1)
ret = append(ret, ps...)
return append(ret, alpnProtoStrH2)
}
// CloneTLSConfig returns a shallow clone of the exported
// fields of cfg, ignoring the unexported sync.Once, which
// contains a mutex and must not be copied.
//
// If cfg is nil, a new zero tls.Config is returned.
//
// TODO: inline this function if possible.
func CloneTLSConfig(cfg *tls.Config) *tls.Config {
if cfg == nil {
return &tls.Config{}
}
return cfg.Clone()
}

18
vendor/google.golang.org/grpc/internal/grpclog/grpclog.go generated vendored
View File

@ -19,6 +19,10 @@
// Package grpclog (internal) defines depth logging for grpc.
package grpclog
import (
"os"
)
// Logger is the logger used for the non-depth log functions.
var Logger LoggerV2
@ -30,7 +34,7 @@ func InfoDepth(depth int, args ...interface{}) {
if DepthLogger != nil {
DepthLogger.InfoDepth(depth, args...)
} else {
Logger.Info(args...)
Logger.Infoln(args...)
}
}
@ -39,7 +43,7 @@ func WarningDepth(depth int, args ...interface{}) {
if DepthLogger != nil {
DepthLogger.WarningDepth(depth, args...)
} else {
Logger.Warning(args...)
Logger.Warningln(args...)
}
}
@ -48,7 +52,7 @@ func ErrorDepth(depth int, args ...interface{}) {
if DepthLogger != nil {
DepthLogger.ErrorDepth(depth, args...)
} else {
Logger.Error(args...)
Logger.Errorln(args...)
}
}
@ -57,8 +61,9 @@ func FatalDepth(depth int, args ...interface{}) {
if DepthLogger != nil {
DepthLogger.FatalDepth(depth, args...)
} else {
Logger.Fatal(args...)
Logger.Fatalln(args...)
}
os.Exit(1)
}
// LoggerV2 does underlying logging work for grpclog.
@ -105,7 +110,10 @@ type LoggerV2 interface {
// This is a copy of the DepthLoggerV2 defined in the external grpclog package.
// It is defined here to avoid a circular dependency.
//
// This API is EXPERIMENTAL.
// Experimental
//
// Notice: This type is EXPERIMENTAL and may be changed or removed in a
// later release.
type DepthLoggerV2 interface {
// InfoDepth logs to INFO log at the specified depth. Arguments are handled in the manner of fmt.Print.
InfoDepth(depth int, args ...interface{})

32
vendor/google.golang.org/grpc/internal/grpclog/prefixLogger.go generated vendored
View File

@ -18,10 +18,15 @@
package grpclog
import (
"fmt"
)
// PrefixLogger does logging with a prefix.
//
// Logging method on a nil logs without any prefix.
type PrefixLogger struct {
logger DepthLoggerV2
prefix string
}
@ -30,34 +35,47 @@ func (pl *PrefixLogger) Infof(format string, args ...interface{}) {
if pl != nil {
// Handle nil, so the tests can pass in a nil logger.
format = pl.prefix + format
pl.logger.InfoDepth(1, fmt.Sprintf(format, args...))
return
}
Logger.Infof(format, args...)
InfoDepth(1, fmt.Sprintf(format, args...))
}
// Warningf does warning logging.
func (pl *PrefixLogger) Warningf(format string, args ...interface{}) {
if pl != nil {
format = pl.prefix + format
pl.logger.WarningDepth(1, fmt.Sprintf(format, args...))
return
}
Logger.Warningf(format, args...)
WarningDepth(1, fmt.Sprintf(format, args...))
}
// Errorf does error logging.
func (pl *PrefixLogger) Errorf(format string, args ...interface{}) {
if pl != nil {
format = pl.prefix + format
pl.logger.ErrorDepth(1, fmt.Sprintf(format, args...))
return
}
Logger.Errorf(format, args...)
ErrorDepth(1, fmt.Sprintf(format, args...))
}
// Debugf does info logging at verbose level 2.
func (pl *PrefixLogger) Debugf(format string, args ...interface{}) {
if Logger.V(2) {
pl.Infof(format, args...)
if !Logger.V(2) {
return
}
if pl != nil {
// Handle nil, so the tests can pass in a nil logger.
format = pl.prefix + format
pl.logger.InfoDepth(1, fmt.Sprintf(format, args...))
return
}
InfoDepth(1, fmt.Sprintf(format, args...))
}
// NewPrefixLogger creates a prefix logger with the given prefix.
func NewPrefixLogger(prefix string) *PrefixLogger {
return &PrefixLogger{prefix: prefix}
func NewPrefixLogger(logger DepthLoggerV2, prefix string) *PrefixLogger {
return &PrefixLogger{logger: logger, prefix: prefix}
}

63
vendor/google.golang.org/grpc/internal/grpcutil/encode_duration.go generated vendored Normal file
View File

@ -0,0 +1,63 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpcutil
import (
"strconv"
"time"
)
const maxTimeoutValue int64 = 100000000 - 1
// div does integer division and round-up the result. Note that this is
// equivalent to (d+r-1)/r but has less chance to overflow.
func div(d, r time.Duration) int64 {
if d%r > 0 {
return int64(d/r + 1)
}
return int64(d / r)
}
// EncodeDuration encodes the duration to the format grpc-timeout header
// accepts.
//
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
func EncodeDuration(t time.Duration) string {
// TODO: This is simplistic and not bandwidth efficient. Improve it.
if t <= 0 {
return "0n"
}
if d := div(t, time.Nanosecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "n"
}
if d := div(t, time.Microsecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "u"
}
if d := div(t, time.Millisecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "m"
}
if d := div(t, time.Second); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "S"
}
if d := div(t, time.Minute); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "M"
}
// Note that maxTimeoutValue * time.Hour > MaxInt64.
return strconv.FormatInt(div(t, time.Hour), 10) + "H"
}

40
vendor/google.golang.org/grpc/internal/grpcutil/metadata.go generated vendored Normal file
View File

@ -0,0 +1,40 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package grpcutil
import (
"context"
"google.golang.org/grpc/metadata"
)
type mdExtraKey struct{}
// WithExtraMetadata creates a new context with incoming md attached.
func WithExtraMetadata(ctx context.Context, md metadata.MD) context.Context {
return context.WithValue(ctx, mdExtraKey{}, md)
}
// ExtraMetadata returns the incoming metadata in ctx if it exists. The
// returned MD should not be modified. Writing to it may cause races.
// Modification should be made to copies of the returned MD.
func ExtraMetadata(ctx context.Context) (md metadata.MD, ok bool) {
md, ok = ctx.Value(mdExtraKey{}).(metadata.MD)
return
}

44
vendor/google.golang.org/grpc/internal/grpcutil/method.go generated vendored
View File

@ -38,3 +38,47 @@ func ParseMethod(methodName string) (service, method string, _ error) {
}
return methodName[:pos], methodName[pos+1:], nil
}
const baseContentType = "application/grpc"
// ContentSubtype returns the content-subtype for the given content-type. The
// given content-type must be a valid content-type that starts with
// "application/grpc". A content-subtype will follow "application/grpc" after a
// "+" or ";". See
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests for
// more details.
//
// If contentType is not a valid content-type for gRPC, the boolean
// will be false, otherwise true. If content-type == "application/grpc",
// "application/grpc+", or "application/grpc;", the boolean will be true,
// but no content-subtype will be returned.
//
// contentType is assumed to be lowercase already.
func ContentSubtype(contentType string) (string, bool) {
if contentType == baseContentType {
return "", true
}
if !strings.HasPrefix(contentType, baseContentType) {
return "", false
}
// guaranteed since != baseContentType and has baseContentType prefix
switch contentType[len(baseContentType)] {
case '+', ';':
// this will return true for "application/grpc+" or "application/grpc;"
// which the previous validContentType function tested to be valid, so we
// just say that no content-subtype is specified in this case
return contentType[len(baseContentType)+1:], true
default:
return "", false
}
}
// ContentType builds full content type with the given sub-type.
//
// contentSubtype is assumed to be lowercase
func ContentType(contentSubtype string) string {
if contentSubtype == "" {
return baseContentType
}
return baseContentType + "+" + contentSubtype
}

42
vendor/google.golang.org/grpc/internal/grpcutil/target.go generated vendored
View File

@ -37,19 +37,53 @@ func split2(s, sep string) (string, string, bool) {
}
// ParseTarget splits target into a resolver.Target struct containing scheme,
// authority and endpoint.
// authority and endpoint. skipUnixColonParsing indicates that the parse should
// not parse "unix:[path]" cases. This should be true in cases where a custom
// dialer is present, to prevent a behavior change.
//
// If target is not a valid scheme://authority/endpoint, it returns {Endpoint:
// target}.
func ParseTarget(target string) (ret resolver.Target) {
// If target is not a valid scheme://authority/endpoint as specified in
// https://github.com/grpc/grpc/blob/master/doc/naming.md,
// it returns {Endpoint: target}.
func ParseTarget(target string, skipUnixColonParsing bool) (ret resolver.Target) {
var ok bool
if strings.HasPrefix(target, "unix-abstract:") {
if strings.HasPrefix(target, "unix-abstract://") {
// Maybe, with Authority specified, try to parse it
var remain string
ret.Scheme, remain, _ = split2(target, "://")
ret.Authority, ret.Endpoint, ok = split2(remain, "/")
if !ok {
// No Authority, add the "//" back
ret.Endpoint = "//" + remain
} else {
// Found Authority, add the "/" back
ret.Endpoint = "/" + ret.Endpoint
}
} else {
// Without Authority specified, split target on ":"
ret.Scheme, ret.Endpoint, _ = split2(target, ":")
}
return ret
}
ret.Scheme, ret.Endpoint, ok = split2(target, "://")
if !ok {
if strings.HasPrefix(target, "unix:") && !skipUnixColonParsing {
// Handle the "unix:[local/path]" and "unix:[/absolute/path]" cases,
// because splitting on :// only handles the
// "unix://[/absolute/path]" case. Only handle if the dialer is nil,
// to avoid a behavior change with custom dialers.
return resolver.Target{Scheme: "unix", Endpoint: target[len("unix:"):]}
}
return resolver.Target{Endpoint: target}
}
ret.Authority, ret.Endpoint, ok = split2(ret.Endpoint, "/")
if !ok {
return resolver.Target{Endpoint: target}
}
if ret.Scheme == "unix" {
// Add the "/" back in the unix case, so the unix resolver receives the
// actual endpoint in the "unix://[/absolute/path]" case.
ret.Endpoint = "/" + ret.Endpoint
}
return ret
}

24
vendor/google.golang.org/grpc/internal/internal.go generated vendored
View File

@ -38,12 +38,6 @@ var (
// KeepaliveMinPingTime is the minimum ping interval. This must be 10s by
// default, but tests may wish to set it lower for convenience.
KeepaliveMinPingTime = 10 * time.Second
// NewRequestInfoContext creates a new context based on the argument context attaching
// the passed in RequestInfo to the new context.
NewRequestInfoContext interface{} // func(context.Context, credentials.RequestInfo) context.Context
// NewClientHandshakeInfoContext returns a copy of the input context with
// the passed in ClientHandshakeInfo struct added to it.
NewClientHandshakeInfoContext interface{} // func(context.Context, credentials.ClientHandshakeInfo) context.Context
// ParseServiceConfigForTesting is for creating a fake
// ClientConn for resolver testing only
ParseServiceConfigForTesting interface{} // func(string) *serviceconfig.ParseResult
@ -52,6 +46,24 @@ var (
// This function compares the config without rawJSON stripped, in case the
// there's difference in white space.
EqualServiceConfigForTesting func(a, b serviceconfig.Config) bool
// GetCertificateProviderBuilder returns the registered builder for the
// given name. This is set by package certprovider for use from xDS
// bootstrap code while parsing certificate provider configs in the
// bootstrap file.
GetCertificateProviderBuilder interface{} // func(string) certprovider.Builder
// GetXDSHandshakeInfoForTesting returns a pointer to the xds.HandshakeInfo
// stored in the passed in attributes. This is set by
// credentials/xds/xds.go.
GetXDSHandshakeInfoForTesting interface{} // func (*attributes.Attributes) *xds.HandshakeInfo
// GetServerCredentials returns the transport credentials configured on a
// gRPC server. An xDS-enabled server needs to know what type of credentials
// is configured on the underlying gRPC server. This is set by server.go.
GetServerCredentials interface{} // func (*grpc.Server) credentials.TransportCredentials
// DrainServerTransports initiates a graceful close of existing connections
// on a gRPC server accepted on the provided listener address. An
// xDS-enabled server invokes this method on a grpc.Server when a particular
// listener moves to "not-serving" mode.
DrainServerTransports interface{} // func(*grpc.Server, string)
)
// HealthChecker defines the signature of the client-side LB channel health checking function.

50
vendor/google.golang.org/grpc/internal/metadata/metadata.go generated vendored Normal file
View File

@ -0,0 +1,50 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package metadata contains functions to set and get metadata from addresses.
//
// This package is experimental.
package metadata
import (
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/resolver"
)
type mdKeyType string
const mdKey = mdKeyType("grpc.internal.address.metadata")
// Get returns the metadata of addr.
func Get(addr resolver.Address) metadata.MD {
attrs := addr.Attributes
if attrs == nil {
return nil
}
md, _ := attrs.Value(mdKey).(metadata.MD)
return md
}
// Set sets (overrides) the metadata in addr.
//
// When a SubConn is created with this address, the RPCs sent on it will all
// have this metadata.
func Set(addr resolver.Address, md metadata.MD) resolver.Address {
addr.Attributes = addr.Attributes.WithValues(mdKey, md)
return addr
}

164
vendor/google.golang.org/grpc/internal/resolver/config_selector.go generated vendored Normal file
View File

@ -0,0 +1,164 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package resolver provides internal resolver-related functionality.
package resolver
import (
"context"
"sync"
"google.golang.org/grpc/internal/serviceconfig"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/resolver"
)
// ConfigSelector controls what configuration to use for every RPC.
type ConfigSelector interface {
// Selects the configuration for the RPC, or terminates it using the error.
// This error will be converted by the gRPC library to a status error with
// code UNKNOWN if it is not returned as a status error.
SelectConfig(RPCInfo) (*RPCConfig, error)
}
// RPCInfo contains RPC information needed by a ConfigSelector.
type RPCInfo struct {
// Context is the user's context for the RPC and contains headers and
// application timeout. It is passed for interception purposes and for
// efficiency reasons. SelectConfig should not be blocking.
Context context.Context
Method string // i.e. "/Service/Method"
}
// RPCConfig describes the configuration to use for each RPC.
type RPCConfig struct {
// The context to use for the remainder of the RPC; can pass info to LB
// policy or affect timeout or metadata.
Context context.Context
MethodConfig serviceconfig.MethodConfig // configuration to use for this RPC
OnCommitted func() // Called when the RPC has been committed (retries no longer possible)
Interceptor ClientInterceptor
}
// ClientStream is the same as grpc.ClientStream, but defined here for circular
// dependency reasons.
type ClientStream interface {
// Header returns the header metadata received from the server if there
// is any. It blocks if the metadata is not ready to read.
Header() (metadata.MD, error)
// Trailer returns the trailer metadata from the server, if there is any.
// It must only be called after stream.CloseAndRecv has returned, or
// stream.Recv has returned a non-nil error (including io.EOF).
Trailer() metadata.MD
// CloseSend closes the send direction of the stream. It closes the stream
// when non-nil error is met. It is also not safe to call CloseSend
// concurrently with SendMsg.
CloseSend() error
// Context returns the context for this stream.
//
// It should not be called until after Header or RecvMsg has returned. Once
// called, subsequent client-side retries are disabled.
Context() context.Context
// SendMsg is generally called by generated code. On error, SendMsg aborts
// the stream. If the error was generated by the client, the status is
// returned directly; otherwise, io.EOF is returned and the status of
// the stream may be discovered using RecvMsg.
//
// SendMsg blocks until:
// - There is sufficient flow control to schedule m with the transport, or
// - The stream is done, or
// - The stream breaks.
//
// SendMsg does not wait until the message is received by the server. An
// untimely stream closure may result in lost messages. To ensure delivery,
// users should ensure the RPC completed successfully using RecvMsg.
//
// It is safe to have a goroutine calling SendMsg and another goroutine
// calling RecvMsg on the same stream at the same time, but it is not safe
// to call SendMsg on the same stream in different goroutines. It is also
// not safe to call CloseSend concurrently with SendMsg.
SendMsg(m interface{}) error
// RecvMsg blocks until it receives a message into m or the stream is
// done. It returns io.EOF when the stream completes successfully. On
// any other error, the stream is aborted and the error contains the RPC
// status.
//
// It is safe to have a goroutine calling SendMsg and another goroutine
// calling RecvMsg on the same stream at the same time, but it is not
// safe to call RecvMsg on the same stream in different goroutines.
RecvMsg(m interface{}) error
}
// ClientInterceptor is an interceptor for gRPC client streams.
type ClientInterceptor interface {
// NewStream produces a ClientStream for an RPC which may optionally use
// the provided function to produce a stream for delegation. Note:
// RPCInfo.Context should not be used (will be nil).
//
// done is invoked when the RPC is finished using its connection, or could
// not be assigned a connection. RPC operations may still occur on
// ClientStream after done is called, since the interceptor is invoked by
// application-layer operations. done must never be nil when called.
NewStream(ctx context.Context, ri RPCInfo, done func(), newStream func(ctx context.Context, done func()) (ClientStream, error)) (ClientStream, error)
}
// ServerInterceptor is unimplementable; do not use.
type ServerInterceptor interface {
notDefined()
}
type csKeyType string
const csKey = csKeyType("grpc.internal.resolver.configSelector")
// SetConfigSelector sets the config selector in state and returns the new
// state.
func SetConfigSelector(state resolver.State, cs ConfigSelector) resolver.State {
state.Attributes = state.Attributes.WithValues(csKey, cs)
return state
}
// GetConfigSelector retrieves the config selector from state, if present, and
// returns it or nil if absent.
func GetConfigSelector(state resolver.State) ConfigSelector {
cs, _ := state.Attributes.Value(csKey).(ConfigSelector)
return cs
}
// SafeConfigSelector allows for safe switching of ConfigSelector
// implementations such that previous values are guaranteed to not be in use
// when UpdateConfigSelector returns.
type SafeConfigSelector struct {
mu sync.RWMutex
cs ConfigSelector
}
// UpdateConfigSelector swaps to the provided ConfigSelector and blocks until
// all uses of the previous ConfigSelector have completed.
func (scs *SafeConfigSelector) UpdateConfigSelector(cs ConfigSelector) {
scs.mu.Lock()
defer scs.mu.Unlock()
scs.cs = cs
}
// SelectConfig defers to the current ConfigSelector in scs.
func (scs *SafeConfigSelector) SelectConfig(r RPCInfo) (*RPCConfig, error) {
scs.mu.RLock()
defer scs.mu.RUnlock()
return scs.cs.SelectConfig(r)
}

53
vendor/google.golang.org/grpc/internal/resolver/dns/dns_resolver.go generated vendored
View File

@ -34,6 +34,7 @@ import (
grpclbstate "google.golang.org/grpc/balancer/grpclb/state"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/backoff"
"google.golang.org/grpc/internal/envconfig"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/resolver"
@ -44,6 +45,15 @@ import (
// addresses from SRV records. Must not be changed after init time.
var EnableSRVLookups = false
var logger = grpclog.Component("dns")
// Globals to stub out in tests. TODO: Perhaps these two can be combined into a
// single variable for testing the resolver?
var (
newTimer = time.NewTimer
newTimerDNSResRate = time.NewTimer
)
func init() {
resolver.Register(NewBuilder())
}
@ -141,7 +151,6 @@ func (b *dnsBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts
d.wg.Add(1)
go d.watcher()
d.ResolveNow(resolver.ResolveNowOptions{})
return d, nil
}
@ -199,28 +208,38 @@ func (d *dnsResolver) Close() {
func (d *dnsResolver) watcher() {
defer d.wg.Done()
backoffIndex := 1
for {
select {
case <-d.ctx.Done():
return
case <-d.rn:
}
state, err := d.lookup()
if err != nil {
// Report error to the underlying grpc.ClientConn.
d.cc.ReportError(err)
} else {
d.cc.UpdateState(*state)
err = d.cc.UpdateState(*state)
}
// Sleep to prevent excessive re-resolutions. Incoming resolution requests
// will be queued in d.rn.
t := time.NewTimer(minDNSResRate)
var timer *time.Timer
if err == nil {
// Success resolving, wait for the next ResolveNow. However, also wait 30 seconds at the very least
// to prevent constantly re-resolving.
backoffIndex = 1
timer = newTimerDNSResRate(minDNSResRate)
select {
case <-d.ctx.Done():
timer.Stop()
return
case <-d.rn:
}
} else {
// Poll on an error found in DNS Resolver or an error received from ClientConn.
timer = newTimer(backoff.DefaultExponential.Backoff(backoffIndex))
backoffIndex++
}
select {
case <-t.C:
case <-d.ctx.Done():
t.Stop()
timer.Stop()
return
case <-timer.C:
}
}
}
@ -272,7 +291,7 @@ func handleDNSError(err error, lookupType string) error {
err = filterError(err)
if err != nil {
err = fmt.Errorf("dns: %v record lookup error: %v", lookupType, err)
grpclog.Infoln(err)
logger.Info(err)
}
return err
}
@ -295,7 +314,7 @@ func (d *dnsResolver) lookupTXT() *serviceconfig.ParseResult {
// TXT record must have "grpc_config=" attribute in order to be used as service config.
if !strings.HasPrefix(res, txtAttribute) {
grpclog.Warningf("dns: TXT record %v missing %v attribute", res, txtAttribute)
logger.Warningf("dns: TXT record %v missing %v attribute", res, txtAttribute)
// This is not an error; it is the equivalent of not having a service config.
return nil
}
@ -421,12 +440,12 @@ func canaryingSC(js string) string {
var rcs []rawChoice
err := json.Unmarshal([]byte(js), &rcs)
if err != nil {
grpclog.Warningf("dns: error parsing service config json: %v", err)
logger.Warningf("dns: error parsing service config json: %v", err)
return ""
}
cliHostname, err := os.Hostname()
if err != nil {
grpclog.Warningf("dns: error getting client hostname: %v", err)
logger.Warningf("dns: error getting client hostname: %v", err)
return ""
}
var sc string

63
vendor/google.golang.org/grpc/internal/resolver/unix/unix.go generated vendored Normal file
View File

@ -0,0 +1,63 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package unix implements a resolver for unix targets.
package unix
import (
"fmt"
"google.golang.org/grpc/internal/transport/networktype"
"google.golang.org/grpc/resolver"
)
const unixScheme = "unix"
const unixAbstractScheme = "unix-abstract"
type builder struct {
scheme string
}
func (b *builder) Build(target resolver.Target, cc resolver.ClientConn, _ resolver.BuildOptions) (resolver.Resolver, error) {
if target.Authority != "" {
return nil, fmt.Errorf("invalid (non-empty) authority: %v", target.Authority)
}
addr := resolver.Address{Addr: target.Endpoint}
if b.scheme == unixAbstractScheme {
// prepend "\x00" to address for unix-abstract
addr.Addr = "\x00" + addr.Addr
}
cc.UpdateState(resolver.State{Addresses: []resolver.Address{networktype.Set(addr, "unix")}})
return &nopResolver{}, nil
}
func (b *builder) Scheme() string {
return b.scheme
}
type nopResolver struct {
}
func (*nopResolver) ResolveNow(resolver.ResolveNowOptions) {}
func (*nopResolver) Close() {}
func init() {
resolver.Register(&builder{scheme: unixScheme})
resolver.Register(&builder{scheme: unixAbstractScheme})
}

98
vendor/google.golang.org/grpc/internal/serviceconfig/serviceconfig.go generated vendored
View File

@ -22,14 +22,21 @@ package serviceconfig
import (
"encoding/json"
"fmt"
"time"
"google.golang.org/grpc/balancer"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
externalserviceconfig "google.golang.org/grpc/serviceconfig"
)
// BalancerConfig is the balancer config part that service config's
// loadBalancingConfig fields can be unmarshalled to. It's a json unmarshaller.
var logger = grpclog.Component("core")
// BalancerConfig wraps the name and config associated with one load balancing
// policy. It corresponds to a single entry of the loadBalancingConfig field
// from ServiceConfig.
//
// It implements the json.Unmarshaler interface.
//
// https://github.com/grpc/grpc-proto/blob/54713b1e8bc6ed2d4f25fb4dff527842150b91b2/grpc/service_config/service_config.proto#L247
type BalancerConfig struct {
@ -39,7 +46,31 @@ type BalancerConfig struct {
type intermediateBalancerConfig []map[string]json.RawMessage
// UnmarshalJSON implements json unmarshaller.
// MarshalJSON implements the json.Marshaler interface.
//
// It marshals the balancer and config into a length-1 slice
// ([]map[string]config).
func (bc *BalancerConfig) MarshalJSON() ([]byte, error) {
if bc.Config == nil {
// If config is nil, return empty config `{}`.
return []byte(fmt.Sprintf(`[{%q: %v}]`, bc.Name, "{}")), nil
}
c, err := json.Marshal(bc.Config)
if err != nil {
return nil, err
}
return []byte(fmt.Sprintf(`[{%q: %s}]`, bc.Name, c)), nil
}
// UnmarshalJSON implements the json.Unmarshaler interface.
//
// ServiceConfig contains a list of loadBalancingConfigs, each with a name and
// config. This method iterates through that list in order, and stops at the
// first policy that is supported.
// - If the config for the first supported policy is invalid, the whole service
// config is invalid.
// - If the list doesn't contain any supported policy, the whole service config
// is invalid.
func (bc *BalancerConfig) UnmarshalJSON(b []byte) error {
var ir intermediateBalancerConfig
err := json.Unmarshal(b, &ir)
@ -51,13 +82,16 @@ func (bc *BalancerConfig) UnmarshalJSON(b []byte) error {
if len(lbcfg) != 1 {
return fmt.Errorf("invalid loadBalancingConfig: entry %v does not contain exactly 1 policy/config pair: %q", i, lbcfg)
}
var (
name string
jsonCfg json.RawMessage
)
// Get the key:value pair from the map.
// Get the key:value pair from the map. We have already made sure that
// the map contains a single entry.
for name, jsonCfg = range lbcfg {
}
builder := balancer.Get(name)
if builder == nil {
// If the balancer is not registered, move on to the next config.
@ -69,7 +103,7 @@ func (bc *BalancerConfig) UnmarshalJSON(b []byte) error {
parser, ok := builder.(balancer.ConfigParser)
if !ok {
if string(jsonCfg) != "{}" {
grpclog.Warningf("non-empty balancer configuration %q, but balancer does not implement ParseConfig", string(jsonCfg))
logger.Warningf("non-empty balancer configuration %q, but balancer does not implement ParseConfig", string(jsonCfg))
}
// Stop at this, though the builder doesn't support parsing config.
return nil
@ -88,3 +122,57 @@ func (bc *BalancerConfig) UnmarshalJSON(b []byte) error {
// case.
return fmt.Errorf("invalid loadBalancingConfig: no supported policies found")
}
// MethodConfig defines the configuration recommended by the service providers for a
// particular method.
type MethodConfig struct {
// WaitForReady indicates whether RPCs sent to this method should wait until
// the connection is ready by default (!failfast). The value specified via the
// gRPC client API will override the value set here.
WaitForReady *bool
// Timeout is the default timeout for RPCs sent to this method. The actual
// deadline used will be the minimum of the value specified here and the value
// set by the application via the gRPC client API. If either one is not set,
// then the other will be used. If neither is set, then the RPC has no deadline.
Timeout *time.Duration
// MaxReqSize is the maximum allowed payload size for an individual request in a
// stream (client->server) in bytes. The size which is measured is the serialized
// payload after per-message compression (but before stream compression) in bytes.
// The actual value used is the minimum of the value specified here and the value set
// by the application via the gRPC client API. If either one is not set, then the other
// will be used. If neither is set, then the built-in default is used.
MaxReqSize *int
// MaxRespSize is the maximum allowed payload size for an individual response in a
// stream (server->client) in bytes.
MaxRespSize *int
// RetryPolicy configures retry options for the method.
RetryPolicy *RetryPolicy
}
// RetryPolicy defines the go-native version of the retry policy defined by the
// service config here:
// https://github.com/grpc/proposal/blob/master/A6-client-retries.md#integration-with-service-config
type RetryPolicy struct {
// MaxAttempts is the maximum number of attempts, including the original RPC.
//
// This field is required and must be two or greater.
MaxAttempts int
// Exponential backoff parameters. The initial retry attempt will occur at
// random(0, initialBackoff). In general, the nth attempt will occur at
// random(0,
// min(initialBackoff*backoffMultiplier**(n-1), maxBackoff)).
//
// These fields are required and must be greater than zero.
InitialBackoff time.Duration
MaxBackoff time.Duration
BackoffMultiplier float64
// The set of status codes which may be retried.
//
// Status codes are specified as strings, e.g., "UNAVAILABLE".
//
// This field is required and must be non-empty.
// Note: a set is used to store this for easy lookup.
RetryableStatusCodes map[codes.Code]bool
}

26
vendor/google.golang.org/grpc/internal/syscall/syscall_linux.go generated vendored
View File

@ -32,35 +32,35 @@ import (
"google.golang.org/grpc/grpclog"
)
var logger = grpclog.Component("core")
// GetCPUTime returns the how much CPU time has passed since the start of this process.
func GetCPUTime() int64 {
var ts unix.Timespec
if err := unix.ClockGettime(unix.CLOCK_PROCESS_CPUTIME_ID, &ts); err != nil {
grpclog.Fatal(err)
logger.Fatal(err)
}
return ts.Nano()
}
// Rusage is an alias for syscall.Rusage under linux non-appengine environment.
type Rusage syscall.Rusage
// Rusage is an alias for syscall.Rusage under linux environment.
type Rusage = syscall.Rusage
// GetRusage returns the resource usage of current process.
func GetRusage() (rusage *Rusage) {
rusage = new(Rusage)
syscall.Getrusage(syscall.RUSAGE_SELF, (*syscall.Rusage)(rusage))
return
func GetRusage() *Rusage {
rusage := new(Rusage)
syscall.Getrusage(syscall.RUSAGE_SELF, rusage)
return rusage
}
// CPUTimeDiff returns the differences of user CPU time and system CPU time used
// between two Rusage structs.
func CPUTimeDiff(first *Rusage, latest *Rusage) (float64, float64) {
f := (*syscall.Rusage)(first)
l := (*syscall.Rusage)(latest)
var (
utimeDiffs = l.Utime.Sec - f.Utime.Sec
utimeDiffus = l.Utime.Usec - f.Utime.Usec
stimeDiffs = l.Stime.Sec - f.Stime.Sec
stimeDiffus = l.Stime.Usec - f.Stime.Usec
utimeDiffs = latest.Utime.Sec - first.Utime.Sec
utimeDiffus = latest.Utime.Usec - first.Utime.Usec
stimeDiffs = latest.Stime.Sec - first.Stime.Sec
stimeDiffus = latest.Stime.Usec - first.Stime.Usec
)
uTimeElapsed := float64(utimeDiffs) + float64(utimeDiffus)*1.0e-6

5
vendor/google.golang.org/grpc/internal/syscall/syscall_nonlinux.go generated vendored
View File

@ -31,10 +31,11 @@ import (
)
var once sync.Once
var logger = grpclog.Component("core")
func log() {
once.Do(func() {
grpclog.Info("CPU time info is unavailable on non-linux or appengine environment.")
logger.Info("CPU time info is unavailable on non-linux or appengine environment.")
})
}
@ -49,7 +50,7 @@ func GetCPUTime() int64 {
type Rusage struct{}
// GetRusage is a no-op function under non-linux or appengine environment.
func GetRusage() (rusage *Rusage) {
func GetRusage() *Rusage {
log()
return nil
}

44
vendor/google.golang.org/grpc/internal/transport/controlbuf.go generated vendored
View File

@ -20,13 +20,17 @@ package transport
import (
"bytes"
"errors"
"fmt"
"runtime"
"strconv"
"sync"
"sync/atomic"
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/status"
)
var updateHeaderTblSize = func(e *hpack.Encoder, v uint32) {
@ -128,6 +132,14 @@ type cleanupStream struct {
func (c *cleanupStream) isTransportResponseFrame() bool { return c.rst } // Results in a RST_STREAM
type earlyAbortStream struct {
streamID uint32
contentSubtype string
status *status.Status
}
func (*earlyAbortStream) isTransportResponseFrame() bool { return false }
type dataFrame struct {
streamID uint32
endStream bool
@ -505,7 +517,9 @@ func (l *loopyWriter) run() (err error) {
// 1. When the connection is closed by some other known issue.
// 2. User closed the connection.
// 3. A graceful close of connection.
infof("transport: loopyWriter.run returning. %v", err)
if logger.V(logLevel) {
logger.Infof("transport: loopyWriter.run returning. %v", err)
}
err = nil
}
}()
@ -605,7 +619,9 @@ func (l *loopyWriter) headerHandler(h *headerFrame) error {
if l.side == serverSide {
str, ok := l.estdStreams[h.streamID]
if !ok {
warningf("transport: loopy doesn't recognize the stream: %d", h.streamID)
if logger.V(logLevel) {
logger.Warningf("transport: loopy doesn't recognize the stream: %d", h.streamID)
}
return nil
}
// Case 1.A: Server is responding back with headers.
@ -658,7 +674,9 @@ func (l *loopyWriter) writeHeader(streamID uint32, endStream bool, hf []hpack.He
l.hBuf.Reset()
for _, f := range hf {
if err := l.hEnc.WriteField(f); err != nil {
warningf("transport: loopyWriter.writeHeader encountered error while encoding headers:", err)
if logger.V(logLevel) {
logger.Warningf("transport: loopyWriter.writeHeader encountered error while encoding headers: %v", err)
}
}
}
var (
@ -743,6 +761,24 @@ func (l *loopyWriter) cleanupStreamHandler(c *cleanupStream) error {
return nil
}
func (l *loopyWriter) earlyAbortStreamHandler(eas *earlyAbortStream) error {
if l.side == clientSide {
return errors.New("earlyAbortStream not handled on client")
}
headerFields := []hpack.HeaderField{
{Name: ":status", Value: "200"},
{Name: "content-type", Value: grpcutil.ContentType(eas.contentSubtype)},
{Name: "grpc-status", Value: strconv.Itoa(int(eas.status.Code()))},
{Name: "grpc-message", Value: encodeGrpcMessage(eas.status.Message())},
}
if err := l.writeHeader(eas.streamID, true, headerFields, nil); err != nil {
return err
}
return nil
}
func (l *loopyWriter) incomingGoAwayHandler(*incomingGoAway) error {
if l.side == clientSide {
l.draining = true
@ -781,6 +817,8 @@ func (l *loopyWriter) handle(i interface{}) error {
return l.registerStreamHandler(i)
case *cleanupStream:
return l.cleanupStreamHandler(i)
case *earlyAbortStream:
return l.earlyAbortStreamHandler(i)
case *incomingGoAway:
return l.incomingGoAwayHandler(i)
case *dataFrame:

3
vendor/google.golang.org/grpc/internal/transport/handler_server.go generated vendored
View File

@ -39,6 +39,7 @@ import (
"golang.org/x/net/http2"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
"google.golang.org/grpc/stats"
@ -57,7 +58,7 @@ func NewServerHandlerTransport(w http.ResponseWriter, r *http.Request, stats sta
}
contentType := r.Header.Get("Content-Type")
// TODO: do we assume contentType is lowercase? we did before
contentSubtype, validContentType := contentSubtype(contentType)
contentSubtype, validContentType := grpcutil.ContentSubtype(contentType)
if !validContentType {
return nil, errors.New("invalid gRPC request content-type")
}

180
vendor/google.golang.org/grpc/internal/transport/http2_client.go generated vendored
View File

@ -32,12 +32,14 @@ import (
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/internal"
"google.golang.org/grpc/internal/channelz"
icredentials "google.golang.org/grpc/internal/credentials"
"google.golang.org/grpc/internal/grpcutil"
imetadata "google.golang.org/grpc/internal/metadata"
"google.golang.org/grpc/internal/syscall"
"google.golang.org/grpc/internal/transport/networktype"
"google.golang.org/grpc/keepalive"
"google.golang.org/grpc/metadata"
"google.golang.org/grpc/peer"
@ -58,7 +60,7 @@ type http2Client struct {
cancel context.CancelFunc
ctxDone <-chan struct{} // Cache the ctx.Done() chan.
userAgent string
md interface{}
md metadata.MD
conn net.Conn // underlying communication channel
loopy *loopyWriter
remoteAddr net.Addr
@ -113,6 +115,9 @@ type http2Client struct {
// goAwayReason records the http2.ErrCode and debug data received with the
// GoAway frame.
goAwayReason GoAwayReason
// goAwayDebugMessage contains a detailed human readable string about a
// GoAway frame, useful for error messages.
goAwayDebugMessage string
// A condition variable used to signal when the keepalive goroutine should
// go dormant. The condition for dormancy is based on the number of active
// streams and the `PermitWithoutStream` keepalive client parameter. And
@ -136,11 +141,27 @@ type http2Client struct {
connectionID uint64
}
func dial(ctx context.Context, fn func(context.Context, string) (net.Conn, error), addr string) (net.Conn, error) {
func dial(ctx context.Context, fn func(context.Context, string) (net.Conn, error), addr resolver.Address, useProxy bool, grpcUA string) (net.Conn, error) {
address := addr.Addr
networkType, ok := networktype.Get(addr)
if fn != nil {
return fn(ctx, addr)
if networkType == "unix" && !strings.HasPrefix(address, "\x00") {
// For backward compatibility, if the user dialed "unix:///path",
// the passthrough resolver would be used and the user's custom
// dialer would see "unix:///path". Since the unix resolver is used
// and the address is now "/path", prepend "unix://" so the user's
// custom dialer sees the same address.
return fn(ctx, "unix://"+address)
}
return fn(ctx, address)
}
return (&net.Dialer{}).DialContext(ctx, "tcp", addr)
if !ok {
networkType, address = parseDialTarget(address)
}
if networkType == "tcp" && useProxy {
return proxyDial(ctx, address, grpcUA)
}
return (&net.Dialer{}).DialContext(ctx, networkType, address)
}
func isTemporary(err error) bool {
@ -171,7 +192,7 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
}
}()
conn, err := dial(connectCtx, opts.Dialer, addr.Addr)
conn, err := dial(connectCtx, opts.Dialer, addr, opts.UseProxy, opts.UserAgent)
if err != nil {
if opts.FailOnNonTempDialError {
return nil, connectionErrorf(isTemporary(err), err, "transport: error while dialing: %v", err)
@ -219,12 +240,23 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
// Attributes field of resolver.Address, which is shoved into connectCtx
// and passed to the credential handshaker. This makes it possible for
// address specific arbitrary data to reach the credential handshaker.
contextWithHandshakeInfo := internal.NewClientHandshakeInfoContext.(func(context.Context, credentials.ClientHandshakeInfo) context.Context)
connectCtx = contextWithHandshakeInfo(connectCtx, credentials.ClientHandshakeInfo{Attributes: addr.Attributes})
connectCtx = icredentials.NewClientHandshakeInfoContext(connectCtx, credentials.ClientHandshakeInfo{Attributes: addr.Attributes})
conn, authInfo, err = transportCreds.ClientHandshake(connectCtx, addr.ServerName, conn)
if err != nil {
return nil, connectionErrorf(isTemporary(err), err, "transport: authentication handshake failed: %v", err)
}
for _, cd := range perRPCCreds {
if cd.RequireTransportSecurity() {
if ci, ok := authInfo.(interface {
GetCommonAuthInfo() credentials.CommonAuthInfo
}); ok {
secLevel := ci.GetCommonAuthInfo().SecurityLevel
if secLevel != credentials.InvalidSecurityLevel && secLevel < credentials.PrivacyAndIntegrity {
return nil, connectionErrorf(true, nil, "transport: cannot send secure credentials on an insecure connection")
}
}
}
}
isSecure = true
if transportCreds.Info().SecurityProtocol == "tls" {
scheme = "https"
@ -247,7 +279,6 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
ctxDone: ctx.Done(), // Cache Done chan.
cancel: cancel,
userAgent: opts.UserAgent,
md: addr.Metadata,
conn: conn,
remoteAddr: conn.RemoteAddr(),
localAddr: conn.LocalAddr(),
@ -275,6 +306,12 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
keepaliveEnabled: keepaliveEnabled,
bufferPool: newBufferPool(),
}
if md, ok := addr.Metadata.(*metadata.MD); ok {
t.md = *md
} else if md := imetadata.Get(addr); md != nil {
t.md = md
}
t.controlBuf = newControlBuffer(t.ctxDone)
if opts.InitialWindowSize >= defaultWindowSize {
t.initialWindowSize = opts.InitialWindowSize
@ -311,12 +348,14 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
// Send connection preface to server.
n, err := t.conn.Write(clientPreface)
if err != nil {
t.Close()
return nil, connectionErrorf(true, err, "transport: failed to write client preface: %v", err)
err = connectionErrorf(true, err, "transport: failed to write client preface: %v", err)
t.Close(err)
return nil, err
}
if n != len(clientPreface) {
t.Close()
return nil, connectionErrorf(true, err, "transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
err = connectionErrorf(true, nil, "transport: preface mismatch, wrote %d bytes; want %d", n, len(clientPreface))
t.Close(err)
return nil, err
}
var ss []http2.Setting
@ -334,14 +373,16 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
}
err = t.framer.fr.WriteSettings(ss...)
if err != nil {
t.Close()
return nil, connectionErrorf(true, err, "transport: failed to write initial settings frame: %v", err)
err = connectionErrorf(true, err, "transport: failed to write initial settings frame: %v", err)
t.Close(err)
return nil, err
}
// Adjust the connection flow control window if needed.
if delta := uint32(icwz - defaultWindowSize); delta > 0 {
if err := t.framer.fr.WriteWindowUpdate(0, delta); err != nil {
t.Close()
return nil, connectionErrorf(true, err, "transport: failed to write window update: %v", err)
err = connectionErrorf(true, err, "transport: failed to write window update: %v", err)
t.Close(err)
return nil, err
}
}
@ -354,7 +395,9 @@ func newHTTP2Client(connectCtx, ctx context.Context, addr resolver.Address, opts
t.loopy = newLoopyWriter(clientSide, t.framer, t.controlBuf, t.bdpEst)
err := t.loopy.run()
if err != nil {
errorf("transport: loopyWriter.run returning. Err: %v", err)
if logger.V(logLevel) {
logger.Errorf("transport: loopyWriter.run returning. Err: %v", err)
}
}
// If it's a connection error, let reader goroutine handle it
// since there might be data in the buffers.
@ -376,6 +419,7 @@ func (t *http2Client) newStream(ctx context.Context, callHdr *CallHdr) *Stream {
buf: newRecvBuffer(),
headerChan: make(chan struct{}),
contentSubtype: callHdr.ContentSubtype,
doneFunc: callHdr.DoneFunc,
}
s.wq = newWriteQuota(defaultWriteQuota, s.done)
s.requestRead = func(n int) {
@ -415,7 +459,7 @@ func (t *http2Client) createHeaderFields(ctx context.Context, callHdr *CallHdr)
Method: callHdr.Method,
AuthInfo: t.authInfo,
}
ctxWithRequestInfo := internal.NewRequestInfoContext.(func(context.Context, credentials.RequestInfo) context.Context)(ctx, ri)
ctxWithRequestInfo := icredentials.NewRequestInfoContext(ctx, ri)
authData, err := t.getTrAuthData(ctxWithRequestInfo, aud)
if err != nil {
return nil, err
@ -434,7 +478,7 @@ func (t *http2Client) createHeaderFields(ctx context.Context, callHdr *CallHdr)
headerFields = append(headerFields, hpack.HeaderField{Name: ":scheme", Value: t.scheme})
headerFields = append(headerFields, hpack.HeaderField{Name: ":path", Value: callHdr.Method})
headerFields = append(headerFields, hpack.HeaderField{Name: ":authority", Value: callHdr.Host})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: contentType(callHdr.ContentSubtype)})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: grpcutil.ContentType(callHdr.ContentSubtype)})
headerFields = append(headerFields, hpack.HeaderField{Name: "user-agent", Value: t.userAgent})
headerFields = append(headerFields, hpack.HeaderField{Name: "te", Value: "trailers"})
if callHdr.PreviousAttempts > 0 {
@ -449,7 +493,7 @@ func (t *http2Client) createHeaderFields(ctx context.Context, callHdr *CallHdr)
// Send out timeout regardless its value. The server can detect timeout context by itself.
// TODO(mmukhi): Perhaps this field should be updated when actually writing out to the wire.
timeout := time.Until(dl)
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-timeout", Value: encodeTimeout(timeout)})
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-timeout", Value: grpcutil.EncodeDuration(timeout)})
}
for k, v := range authData {
headerFields = append(headerFields, hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
@ -478,25 +522,23 @@ func (t *http2Client) createHeaderFields(ctx context.Context, callHdr *CallHdr)
for _, vv := range added {
for i, v := range vv {
if i%2 == 0 {
k = v
k = strings.ToLower(v)
continue
}
// HTTP doesn't allow you to set pseudoheaders after non pseudoheaders were set.
if isReservedHeader(k) {
continue
}
headerFields = append(headerFields, hpack.HeaderField{Name: strings.ToLower(k), Value: encodeMetadataHeader(k, v)})
headerFields = append(headerFields, hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
}
if md, ok := t.md.(*metadata.MD); ok {
for k, vv := range *md {
if isReservedHeader(k) {
continue
}
for _, v := range vv {
headerFields = append(headerFields, hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
for k, vv := range t.md {
if isReservedHeader(k) {
continue
}
for _, v := range vv {
headerFields = append(headerFields, hpack.HeaderField{Name: k, Value: encodeMetadataHeader(k, v)})
}
}
return headerFields, nil
@ -546,8 +588,11 @@ func (t *http2Client) getCallAuthData(ctx context.Context, audience string, call
// Note: if these credentials are provided both via dial options and call
// options, then both sets of credentials will be applied.
if callCreds := callHdr.Creds; callCreds != nil {
if !t.isSecure && callCreds.RequireTransportSecurity() {
return nil, status.Error(codes.Unauthenticated, "transport: cannot send secure credentials on an insecure connection")
if callCreds.RequireTransportSecurity() {
ri, _ := credentials.RequestInfoFromContext(ctx)
if !t.isSecure || credentials.CheckSecurityLevel(ri.AuthInfo, credentials.PrivacyAndIntegrity) != nil {
return nil, status.Error(codes.Unauthenticated, "transport: cannot send secure credentials on an insecure connection")
}
}
data, err := callCreds.GetRequestMetadata(ctx, audience)
if err != nil {
@ -793,6 +838,9 @@ func (t *http2Client) closeStream(s *Stream, err error, rst bool, rstCode http2.
t.controlBuf.executeAndPut(addBackStreamQuota, cleanup)
// This will unblock write.
close(s.done)
if s.doneFunc != nil {
s.doneFunc()
}
}
// Close kicks off the shutdown process of the transport. This should be called
@ -802,12 +850,12 @@ func (t *http2Client) closeStream(s *Stream, err error, rst bool, rstCode http2.
// This method blocks until the addrConn that initiated this transport is
// re-connected. This happens because t.onClose() begins reconnect logic at the
// addrConn level and blocks until the addrConn is successfully connected.
func (t *http2Client) Close() error {
func (t *http2Client) Close(err error) {
t.mu.Lock()
// Make sure we only Close once.
if t.state == closing {
t.mu.Unlock()
return nil
return
}
// Call t.onClose before setting the state to closing to prevent the client
// from attempting to create new streams ASAP.
@ -823,13 +871,19 @@ func (t *http2Client) Close() error {
t.mu.Unlock()
t.controlBuf.finish()
t.cancel()
err := t.conn.Close()
t.conn.Close()
if channelz.IsOn() {
channelz.RemoveEntry(t.channelzID)
}
// Append info about previous goaways if there were any, since this may be important
// for understanding the root cause for this connection to be closed.
_, goAwayDebugMessage := t.GetGoAwayReason()
if len(goAwayDebugMessage) > 0 {
err = fmt.Errorf("closing transport due to: %v, received prior goaway: %v", err, goAwayDebugMessage)
}
// Notify all active streams.
for _, s := range streams {
t.closeStream(s, ErrConnClosing, false, http2.ErrCodeNo, status.New(codes.Unavailable, ErrConnClosing.Desc), nil, false)
t.closeStream(s, err, false, http2.ErrCodeNo, status.New(codes.Unavailable, err.Error()), nil, false)
}
if t.statsHandler != nil {
connEnd := &stats.ConnEnd{
@ -837,7 +891,6 @@ func (t *http2Client) Close() error {
}
t.statsHandler.HandleConn(t.ctx, connEnd)
}
return err
}
// GracefulClose sets the state to draining, which prevents new streams from
@ -856,7 +909,7 @@ func (t *http2Client) GracefulClose() {
active := len(t.activeStreams)
t.mu.Unlock()
if active == 0 {
t.Close()
t.Close(ErrConnClosing)
return
}
t.controlBuf.put(&incomingGoAway{})
@ -1013,7 +1066,9 @@ func (t *http2Client) handleRSTStream(f *http2.RSTStreamFrame) {
}
statusCode, ok := http2ErrConvTab[f.ErrCode]
if !ok {
warningf("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error %v", f.ErrCode)
if logger.V(logLevel) {
logger.Warningf("transport: http2Client.handleRSTStream found no mapped gRPC status for the received http2 error %v", f.ErrCode)
}
statusCode = codes.Unknown
}
if statusCode == codes.Canceled {
@ -1095,12 +1150,14 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
return
}
if f.ErrCode == http2.ErrCodeEnhanceYourCalm {
infof("Client received GoAway with http2.ErrCodeEnhanceYourCalm.")
if logger.V(logLevel) {
logger.Infof("Client received GoAway with http2.ErrCodeEnhanceYourCalm.")
}
}
id := f.LastStreamID
if id > 0 && id%2 != 1 {
if id > 0 && id%2 == 0 {
t.mu.Unlock()
t.Close()
t.Close(connectionErrorf(true, nil, "received goaway with non-zero even-numbered numbered stream id: %v", id))
return
}
// A client can receive multiple GoAways from the server (see
@ -1118,7 +1175,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
// If there are multiple GoAways the first one should always have an ID greater than the following ones.
if id > t.prevGoAwayID {
t.mu.Unlock()
t.Close()
t.Close(connectionErrorf(true, nil, "received goaway with stream id: %v, which exceeds stream id of previous goaway: %v", id, t.prevGoAwayID))
return
}
default:
@ -1148,7 +1205,7 @@ func (t *http2Client) handleGoAway(f *http2.GoAwayFrame) {
active := len(t.activeStreams)
t.mu.Unlock()
if active == 0 {
t.Close()
t.Close(connectionErrorf(true, nil, "received goaway and there are no active streams"))
}
}
@ -1164,12 +1221,13 @@ func (t *http2Client) setGoAwayReason(f *http2.GoAwayFrame) {
t.goAwayReason = GoAwayTooManyPings
}
}
t.goAwayDebugMessage = fmt.Sprintf("code: %s, debug data: %v", f.ErrCode, string(f.DebugData()))
}
func (t *http2Client) GetGoAwayReason() GoAwayReason {
func (t *http2Client) GetGoAwayReason() (GoAwayReason, string) {
t.mu.Lock()
defer t.mu.Unlock()
return t.goAwayReason
return t.goAwayReason, t.goAwayDebugMessage
}
func (t *http2Client) handleWindowUpdate(f *http2.WindowUpdateFrame) {
@ -1199,8 +1257,8 @@ func (t *http2Client) operateHeaders(frame *http2.MetaHeadersFrame) {
state := &decodeState{}
// Initialize isGRPC value to be !initialHeader, since if a gRPC Response-Headers has already been received, then it means that the peer is speaking gRPC and we are in gRPC mode.
state.data.isGRPC = !initialHeader
if err := state.decodeHeader(frame); err != nil {
t.closeStream(s, err, true, http2.ErrCodeProtocol, status.Convert(err), nil, endStream)
if h2code, err := state.decodeHeader(frame); err != nil {
t.closeStream(s, err, true, h2code, status.Convert(err), nil, endStream)
return
}
@ -1266,7 +1324,8 @@ func (t *http2Client) reader() {
// Check the validity of server preface.
frame, err := t.framer.fr.ReadFrame()
if err != nil {
t.Close() // this kicks off resetTransport, so must be last before return
err = connectionErrorf(true, err, "error reading server preface: %v", err)
t.Close(err) // this kicks off resetTransport, so must be last before return
return
}
t.conn.SetReadDeadline(time.Time{}) // reset deadline once we get the settings frame (we didn't time out, yay!)
@ -1275,7 +1334,8 @@ func (t *http2Client) reader() {
}
sf, ok := frame.(*http2.SettingsFrame)
if !ok {
t.Close() // this kicks off resetTransport, so must be last before return
// this kicks off resetTransport, so must be last before return
t.Close(connectionErrorf(true, nil, "initial http2 frame from server is not a settings frame: %T", frame))
return
}
t.onPrefaceReceipt()
@ -1299,13 +1359,19 @@ func (t *http2Client) reader() {
if s != nil {
// use error detail to provide better err message
code := http2ErrConvTab[se.Code]
msg := t.framer.fr.ErrorDetail().Error()
errorDetail := t.framer.fr.ErrorDetail()
var msg string
if errorDetail != nil {
msg = errorDetail.Error()
} else {
msg = "received invalid frame"
}
t.closeStream(s, status.Error(code, msg), true, http2.ErrCodeProtocol, status.New(code, msg), nil, false)
}
continue
} else {
// Transport error.
t.Close()
t.Close(connectionErrorf(true, err, "error reading from server: %v", err))
return
}
}
@ -1325,7 +1391,9 @@ func (t *http2Client) reader() {
case *http2.WindowUpdateFrame:
t.handleWindowUpdate(frame)
default:
errorf("transport: http2Client.reader got unhandled frame type %v.", frame)
if logger.V(logLevel) {
logger.Errorf("transport: http2Client.reader got unhandled frame type %v.", frame)
}
}
}
}
@ -1362,7 +1430,7 @@ func (t *http2Client) keepalive() {
continue
}
if outstandingPing && timeoutLeft <= 0 {
t.Close()
t.Close(connectionErrorf(true, nil, "keepalive ping failed to receive ACK within timeout"))
return
}
t.mu.Lock()

106
vendor/google.golang.org/grpc/internal/transport/http2_server.go generated vendored
View File

@ -26,6 +26,7 @@ import (
"io"
"math"
"net"
"net/http"
"strconv"
"sync"
"sync/atomic"
@ -34,10 +35,10 @@ import (
"github.com/golang/protobuf/proto"
"golang.org/x/net/http2"
"golang.org/x/net/http2/hpack"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/credentials"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/channelz"
"google.golang.org/grpc/internal/grpcrand"
"google.golang.org/grpc/keepalive"
@ -289,7 +290,9 @@ func newHTTP2Server(conn net.Conn, config *ServerConfig) (_ ServerTransport, err
t.loopy = newLoopyWriter(serverSide, t.framer, t.controlBuf, t.bdpEst)
t.loopy.ssGoAwayHandler = t.outgoingGoAwayHandler
if err := t.loopy.run(); err != nil {
errorf("transport: loopyWriter.run returning. Err: %v", err)
if logger.V(logLevel) {
logger.Errorf("transport: loopyWriter.run returning. Err: %v", err)
}
}
t.conn.Close()
close(t.writerDone)
@ -304,12 +307,12 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
state := &decodeState{
serverSide: true,
}
if err := state.decodeHeader(frame); err != nil {
if se, ok := status.FromError(err); ok {
if h2code, err := state.decodeHeader(frame); err != nil {
if _, ok := status.FromError(err); ok {
t.controlBuf.put(&cleanupStream{
streamID: streamID,
rst: true,
rstCode: statusCodeConvTab[se.Code()],
rstCode: h2code,
onWrite: func() {},
})
}
@ -353,24 +356,6 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
if state.data.statsTrace != nil {
s.ctx = stats.SetIncomingTrace(s.ctx, state.data.statsTrace)
}
if t.inTapHandle != nil {
var err error
info := &tap.Info{
FullMethodName: state.data.method,
}
s.ctx, err = t.inTapHandle(s.ctx, info)
if err != nil {
warningf("transport: http2Server.operateHeaders got an error from InTapHandle: %v", err)
t.controlBuf.put(&cleanupStream{
streamID: s.id,
rst: true,
rstCode: http2.ErrCodeRefusedStream,
onWrite: func() {},
})
s.cancel()
return false
}
}
t.mu.Lock()
if t.state != reachable {
t.mu.Unlock()
@ -391,11 +376,46 @@ func (t *http2Server) operateHeaders(frame *http2.MetaHeadersFrame, handle func(
if streamID%2 != 1 || streamID <= t.maxStreamID {
t.mu.Unlock()
// illegal gRPC stream id.
errorf("transport: http2Server.HandleStreams received an illegal stream id: %v", streamID)
if logger.V(logLevel) {
logger.Errorf("transport: http2Server.HandleStreams received an illegal stream id: %v", streamID)
}
s.cancel()
return true
}
t.maxStreamID = streamID
if state.data.httpMethod != http.MethodPost {
t.mu.Unlock()
if logger.V(logLevel) {
logger.Warningf("transport: http2Server.operateHeaders parsed a :method field: %v which should be POST", state.data.httpMethod)
}
t.controlBuf.put(&cleanupStream{
streamID: streamID,
rst: true,
rstCode: http2.ErrCodeProtocol,
onWrite: func() {},
})
s.cancel()
return false
}
if t.inTapHandle != nil {
var err error
if s.ctx, err = t.inTapHandle(s.ctx, &tap.Info{FullMethodName: state.data.method}); err != nil {
t.mu.Unlock()
if logger.V(logLevel) {
logger.Infof("transport: http2Server.operateHeaders got an error from InTapHandle: %v", err)
}
stat, ok := status.FromError(err)
if !ok {
stat = status.New(codes.PermissionDenied, err.Error())
}
t.controlBuf.put(&earlyAbortStream{
streamID: s.id,
contentSubtype: s.contentSubtype,
status: stat,
})
return false
}
}
t.activeStreams[streamID] = s
if len(t.activeStreams) == 1 {
t.idle = time.Time{}
@ -454,7 +474,9 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
atomic.StoreInt64(&t.lastRead, time.Now().UnixNano())
if err != nil {
if se, ok := err.(http2.StreamError); ok {
warningf("transport: http2Server.HandleStreams encountered http2.StreamError: %v", se)
if logger.V(logLevel) {
logger.Warningf("transport: http2Server.HandleStreams encountered http2.StreamError: %v", se)
}
t.mu.Lock()
s := t.activeStreams[se.StreamID]
t.mu.Unlock()
@ -474,7 +496,9 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
t.Close()
return
}
warningf("transport: http2Server.HandleStreams failed to read frame: %v", err)
if logger.V(logLevel) {
logger.Warningf("transport: http2Server.HandleStreams failed to read frame: %v", err)
}
t.Close()
return
}
@ -497,7 +521,9 @@ func (t *http2Server) HandleStreams(handle func(*Stream), traceCtx func(context.
case *http2.GoAwayFrame:
// TODO: Handle GoAway from the client appropriately.
default:
errorf("transport: http2Server.HandleStreams found unhandled frame type %v.", frame)
if logger.V(logLevel) {
logger.Errorf("transport: http2Server.HandleStreams found unhandled frame type %v.", frame)
}
}
}
}
@ -599,6 +625,10 @@ func (t *http2Server) handleData(f *http2.DataFrame) {
if !ok {
return
}
if s.getState() == streamReadDone {
t.closeStream(s, true, http2.ErrCodeStreamClosed, false)
return
}
if size > 0 {
if err := s.fc.onData(size); err != nil {
t.closeStream(s, true, http2.ErrCodeFlowControl, false)
@ -719,7 +749,9 @@ func (t *http2Server) handlePing(f *http2.PingFrame) {
if t.pingStrikes > maxPingStrikes {
// Send goaway and close the connection.
errorf("transport: Got too many pings from the client, closing the connection.")
if logger.V(logLevel) {
logger.Errorf("transport: Got too many pings from the client, closing the connection.")
}
t.controlBuf.put(&goAway{code: http2.ErrCodeEnhanceYourCalm, debugData: []byte("too_many_pings"), closeConn: true})
}
}
@ -752,7 +784,9 @@ func (t *http2Server) checkForHeaderListSize(it interface{}) bool {
var sz int64
for _, f := range hdrFrame.hf {
if sz += int64(f.Size()); sz > int64(*t.maxSendHeaderListSize) {
errorf("header list size to send violates the maximum size (%d bytes) set by client", *t.maxSendHeaderListSize)
if logger.V(logLevel) {
logger.Errorf("header list size to send violates the maximum size (%d bytes) set by client", *t.maxSendHeaderListSize)
}
return false
}
}
@ -789,7 +823,7 @@ func (t *http2Server) writeHeaderLocked(s *Stream) error {
// first and create a slice of that exact size.
headerFields := make([]hpack.HeaderField, 0, 2) // at least :status, content-type will be there if none else.
headerFields = append(headerFields, hpack.HeaderField{Name: ":status", Value: "200"})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: contentType(s.contentSubtype)})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: grpcutil.ContentType(s.contentSubtype)})
if s.sendCompress != "" {
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-encoding", Value: s.sendCompress})
}
@ -839,7 +873,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
}
} else { // Send a trailer only response.
headerFields = append(headerFields, hpack.HeaderField{Name: ":status", Value: "200"})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: contentType(s.contentSubtype)})
headerFields = append(headerFields, hpack.HeaderField{Name: "content-type", Value: grpcutil.ContentType(s.contentSubtype)})
}
}
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-status", Value: strconv.Itoa(int(st.Code()))})
@ -849,7 +883,7 @@ func (t *http2Server) WriteStatus(s *Stream, st *status.Status) error {
stBytes, err := proto.Marshal(p)
if err != nil {
// TODO: return error instead, when callers are able to handle it.
grpclog.Errorf("transport: failed to marshal rpc status: %v, error: %v", p, err)
logger.Errorf("transport: failed to marshal rpc status: %v, error: %v", p, err)
} else {
headerFields = append(headerFields, hpack.HeaderField{Name: "grpc-status-details-bin", Value: encodeBinHeader(stBytes)})
}
@ -980,7 +1014,9 @@ func (t *http2Server) keepalive() {
select {
case <-ageTimer.C:
// Close the connection after grace period.
infof("transport: closing server transport due to maximum connection age.")
if logger.V(logLevel) {
logger.Infof("transport: closing server transport due to maximum connection age.")
}
t.Close()
case <-t.done:
}
@ -997,7 +1033,9 @@ func (t *http2Server) keepalive() {
continue
}
if outstandingPing && kpTimeoutLeft <= 0 {
infof("transport: closing server transport due to idleness.")
if logger.V(logLevel) {
logger.Infof("transport: closing server transport due to idleness.")
}
t.Close()
return
}

139
vendor/google.golang.org/grpc/internal/transport/http_util.go generated vendored
View File

@ -27,6 +27,7 @@ import (
"math"
"net"
"net/http"
"net/url"
"strconv"
"strings"
"time"
@ -37,6 +38,8 @@ import (
"golang.org/x/net/http2/hpack"
spb "google.golang.org/genproto/googleapis/rpc/status"
"google.golang.org/grpc/codes"
"google.golang.org/grpc/grpclog"
"google.golang.org/grpc/internal/grpcutil"
"google.golang.org/grpc/status"
)
@ -50,7 +53,7 @@ const (
// "proto" as a suffix after "+" or ";". See
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests
// for more details.
baseContentType = "application/grpc"
)
var (
@ -71,13 +74,6 @@ var (
http2.ErrCodeInadequateSecurity: codes.PermissionDenied,
http2.ErrCodeHTTP11Required: codes.Internal,
}
statusCodeConvTab = map[codes.Code]http2.ErrCode{
codes.Internal: http2.ErrCodeInternal,
codes.Canceled: http2.ErrCodeCancel,
codes.Unavailable: http2.ErrCodeRefusedStream,
codes.ResourceExhausted: http2.ErrCodeEnhanceYourCalm,
codes.PermissionDenied: http2.ErrCodeInadequateSecurity,
}
// HTTPStatusConvTab is the HTTP status code to gRPC error code conversion table.
HTTPStatusConvTab = map[int]codes.Code{
// 400 Bad Request - INTERNAL.
@ -97,6 +93,7 @@ var (
// 504 Gateway timeout - UNAVAILABLE.
http.StatusGatewayTimeout: codes.Unavailable,
}
logger = grpclog.Component("transport")
)
type parsedHeaderData struct {
@ -114,6 +111,7 @@ type parsedHeaderData struct {
timeoutSet bool
timeout time.Duration
method string
httpMethod string
// key-value metadata map from the peer.
mdata map[string][]string
statsTags []byte
@ -182,46 +180,6 @@ func isWhitelistedHeader(hdr string) bool {
}
}
// contentSubtype returns the content-subtype for the given content-type. The
// given content-type must be a valid content-type that starts with
// "application/grpc". A content-subtype will follow "application/grpc" after a
// "+" or ";". See
// https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md#requests for
// more details.
//
// If contentType is not a valid content-type for gRPC, the boolean
// will be false, otherwise true. If content-type == "application/grpc",
// "application/grpc+", or "application/grpc;", the boolean will be true,
// but no content-subtype will be returned.
//
// contentType is assumed to be lowercase already.
func contentSubtype(contentType string) (string, bool) {
if contentType == baseContentType {
return "", true
}
if !strings.HasPrefix(contentType, baseContentType) {
return "", false
}
// guaranteed since != baseContentType and has baseContentType prefix
switch contentType[len(baseContentType)] {
case '+', ';':
// this will return true for "application/grpc+" or "application/grpc;"
// which the previous validContentType function tested to be valid, so we
// just say that no content-subtype is specified in this case
return contentType[len(baseContentType)+1:], true
default:
return "", false
}
}
// contentSubtype is assumed to be lowercase
func contentType(contentSubtype string) string {
if contentSubtype == "" {
return baseContentType
}
return baseContentType + "+" + contentSubtype
}
func (d *decodeState) status() *status.Status {
if d.data.statusGen == nil {
// No status-details were provided; generate status using code/msg.
@ -259,11 +217,11 @@ func decodeMetadataHeader(k, v string) (string, error) {
return v, nil
}
func (d *decodeState) decodeHeader(frame *http2.MetaHeadersFrame) error {
func (d *decodeState) decodeHeader(frame *http2.MetaHeadersFrame) (http2.ErrCode, error) {
// frame.Truncated is set to true when framer detects that the current header
// list size hits MaxHeaderListSize limit.
if frame.Truncated {
return status.Error(codes.Internal, "peer header list size exceeded limit")
return http2.ErrCodeFrameSize, status.Error(codes.Internal, "peer header list size exceeded limit")
}
for _, hf := range frame.Fields {
@ -272,10 +230,10 @@ func (d *decodeState) decodeHeader(frame *http2.MetaHeadersFrame) error {
if d.data.isGRPC {
if d.data.grpcErr != nil {
return d.data.grpcErr
return http2.ErrCodeProtocol, d.data.grpcErr
}
if d.serverSide {
return nil
return http2.ErrCodeNo, nil
}
if d.data.rawStatusCode == nil && d.data.statusGen == nil {
// gRPC status doesn't exist.
@ -287,12 +245,12 @@ func (d *decodeState) decodeHeader(frame *http2.MetaHeadersFrame) error {
code := int(codes.Unknown)
d.data.rawStatusCode = &code
}
return nil
return http2.ErrCodeNo, nil
}
// HTTP fallback mode
if d.data.httpErr != nil {
return d.data.httpErr
return http2.ErrCodeProtocol, d.data.httpErr
}
var (
@ -307,7 +265,7 @@ func (d *decodeState) decodeHeader(frame *http2.MetaHeadersFrame) error {
}
}
return status.Error(code, d.constructHTTPErrMsg())
return http2.ErrCodeProtocol, status.Error(code, d.constructHTTPErrMsg())
}
// constructErrMsg constructs error message to be returned in HTTP fallback mode.
@ -340,7 +298,7 @@ func (d *decodeState) addMetadata(k, v string) {
func (d *decodeState) processHeaderField(f hpack.HeaderField) {
switch f.Name {
case "content-type":
contentSubtype, validContentType := contentSubtype(f.Value)
contentSubtype, validContentType := grpcutil.ContentSubtype(f.Value)
if !validContentType {
d.data.contentTypeErr = fmt.Sprintf("transport: received the unexpected content-type %q", f.Value)
return
@ -406,13 +364,17 @@ func (d *decodeState) processHeaderField(f hpack.HeaderField) {
}
d.data.statsTrace = v
d.addMetadata(f.Name, string(v))
case ":method":
d.data.httpMethod = f.Value
default:
if isReservedHeader(f.Name) && !isWhitelistedHeader(f.Name) {
break
}
v, err := decodeMetadataHeader(f.Name, f.Value)
if err != nil {
errorf("Failed to decode metadata header (%q, %q): %v", f.Name, f.Value, err)
if logger.V(logLevel) {
logger.Errorf("Failed to decode metadata header (%q, %q): %v", f.Name, f.Value, err)
}
return
}
d.addMetadata(f.Name, v)
@ -449,41 +411,6 @@ func timeoutUnitToDuration(u timeoutUnit) (d time.Duration, ok bool) {
return
}
const maxTimeoutValue int64 = 100000000 - 1
// div does integer division and round-up the result. Note that this is
// equivalent to (d+r-1)/r but has less chance to overflow.
func div(d, r time.Duration) int64 {
if m := d % r; m > 0 {
return int64(d/r + 1)
}
return int64(d / r)
}
// TODO(zhaoq): It is the simplistic and not bandwidth efficient. Improve it.
func encodeTimeout(t time.Duration) string {
if t <= 0 {
return "0n"
}
if d := div(t, time.Nanosecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "n"
}
if d := div(t, time.Microsecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "u"
}
if d := div(t, time.Millisecond); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "m"
}
if d := div(t, time.Second); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "S"
}
if d := div(t, time.Minute); d <= maxTimeoutValue {
return strconv.FormatInt(d, 10) + "M"
}
// Note that maxTimeoutValue * time.Hour > MaxInt64.
return strconv.FormatInt(div(t, time.Hour), 10) + "H"
}
func decodeTimeout(s string) (time.Duration, error) {
size := len(s)
if size < 2 {
@ -675,3 +602,31 @@ func newFramer(conn net.Conn, writeBufferSize, readBufferSize int, maxHeaderList
f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
return f
}
// parseDialTarget returns the network and address to pass to dialer.
func parseDialTarget(target string) (string, string) {
net := "tcp"
m1 := strings.Index(target, ":")
m2 := strings.Index(target, ":/")
// handle unix:addr which will fail with url.Parse
if m1 >= 0 && m2 < 0 {
if n := target[0:m1]; n == "unix" {
return n, target[m1+1:]
}
}
if m2 >= 0 {
t, err := url.Parse(target)
if err != nil {
return net, target
}
scheme := t.Scheme
addr := t.Path
if scheme == "unix" {
if addr == "" {
addr = t.Host
}
return scheme, addr
}
}
return net, target
}

46
vendor/google.golang.org/grpc/internal/transport/networktype/networktype.go generated vendored Normal file
View File

@ -0,0 +1,46 @@
/*
*
* Copyright 2020 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
// Package networktype declares the network type to be used in the default
// dailer. Attribute of a resolver.Address.
package networktype
import (
"google.golang.org/grpc/resolver"
)
// keyType is the key to use for storing State in Attributes.
type keyType string
const key = keyType("grpc.internal.transport.networktype")
// Set returns a copy of the provided address with attributes containing networkType.
func Set(address resolver.Address, networkType string) resolver.Address {
address.Attributes = address.Attributes.WithValues(key, networkType)
return address
}
// Get returns the network type in the resolver.Address and true, or "", false
// if not present.
func Get(address resolver.Address) (string, bool) {
v := address.Attributes.Value(key)
if v == nil {
return "", false
}
return v.(string), true
}

142
vendor/google.golang.org/grpc/internal/transport/proxy.go generated vendored Normal file
View File

@ -0,0 +1,142 @@
/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
package transport
import (
"bufio"
"context"
"encoding/base64"
"fmt"
"io"
"net"
"net/http"
"net/http/httputil"
"net/url"
)
const proxyAuthHeaderKey = "Proxy-Authorization"
var (
// The following variable will be overwritten in the tests.
httpProxyFromEnvironment = http.ProxyFromEnvironment
)
func mapAddress(ctx context.Context, address string) (*url.URL, error) {
req := &http.Request{
URL: &url.URL{
Scheme: "https",
Host: address,
},
}
url, err := httpProxyFromEnvironment(req)
if err != nil {
return nil, err
}
return url, nil
}
// To read a response from a net.Conn, http.ReadResponse() takes a bufio.Reader.
// It's possible that this reader reads more than what's need for the response and stores
// those bytes in the buffer.
// bufConn wraps the original net.Conn and the bufio.Reader to make sure we don't lose the
// bytes in the buffer.
type bufConn struct {
net.Conn
r io.Reader
}
func (c *bufConn) Read(b []byte) (int, error) {
return c.r.Read(b)
}
func basicAuth(username, password string) string {
auth := username + ":" + password
return base64.StdEncoding.EncodeToString([]byte(auth))
}
func doHTTPConnectHandshake(ctx context.Context, conn net.Conn, backendAddr string, proxyURL *url.URL, grpcUA string) (_ net.Conn, err error) {
defer func() {
if err != nil {
conn.Close()
}
}()
req := &http.Request{
Method: http.MethodConnect,
URL: &url.URL{Host: backendAddr},
Header: map[string][]string{"User-Agent": {grpcUA}},
}
if t := proxyURL.User; t != nil {
u := t.Username()
p, _ := t.Password()
req.Header.Add(proxyAuthHeaderKey, "Basic "+basicAuth(u, p))
}
if err := sendHTTPRequest(ctx, req, conn); err != nil {
return nil, fmt.Errorf("failed to write the HTTP request: %v", err)
}
r := bufio.NewReader(conn)
resp, err := http.ReadResponse(r, req)
if err != nil {
return nil, fmt.Errorf("reading server HTTP response: %v", err)
}
defer resp.Body.Close()
if resp.StatusCode != http.StatusOK {
dump, err := httputil.DumpResponse(resp, true)
if err != nil {
return nil, fmt.Errorf("failed to do connect handshake, status code: %s", resp.Status)
}
return nil, fmt.Errorf("failed to do connect handshake, response: %q", dump)
}
return &bufConn{Conn: conn, r: r}, nil
}
// proxyDial dials, connecting to a proxy first if necessary. Checks if a proxy
// is necessary, dials, does the HTTP CONNECT handshake, and returns the
// connection.
func proxyDial(ctx context.Context, addr string, grpcUA string) (conn net.Conn, err error) {
newAddr := addr
proxyURL, err := mapAddress(ctx, addr)
if err != nil {
return nil, err
}
if proxyURL != nil {
newAddr = proxyURL.Host
}
conn, err = (&net.Dialer{}).DialContext(ctx, "tcp", newAddr)
if err != nil {
return
}
if proxyURL != nil {
// proxy is disabled if proxyURL is nil.
conn, err = doHTTPConnectHandshake(ctx, conn, addr, proxyURL, grpcUA)
}
return
}
func sendHTTPRequest(ctx context.Context, req *http.Request, conn net.Conn) error {
req = req.WithContext(ctx)
if err := req.Write(conn); err != nil {
return fmt.Errorf("failed to write the HTTP request: %v", err)
}
return nil
}

14
vendor/google.golang.org/grpc/internal/transport/transport.go generated vendored
View File

@ -41,6 +41,8 @@ import (
"google.golang.org/grpc/tap"
)
const logLevel = 2
type bufferPool struct {
pool sync.Pool
}
@ -239,6 +241,7 @@ type Stream struct {
ctx context.Context // the associated context of the stream
cancel context.CancelFunc // always nil for client side Stream
done chan struct{} // closed at the end of stream to unblock writers. On the client side.
doneFunc func() // invoked at the end of stream on client side.
ctxDone <-chan struct{} // same as done chan but for server side. Cache of ctx.Done() (for performance)
method string // the associated RPC method of the stream
recvCompress string
@ -567,6 +570,8 @@ type ConnectOptions struct {
ChannelzParentID int64
// MaxHeaderListSize sets the max (uncompressed) size of header list that is prepared to be received.
MaxHeaderListSize *uint32
// UseProxy specifies if a proxy should be used.
UseProxy bool
}
// NewClientTransport establishes the transport with the required ConnectOptions
@ -607,6 +612,8 @@ type CallHdr struct {
ContentSubtype string
PreviousAttempts int // value of grpc-previous-rpc-attempts header to set
DoneFunc func() // called when the stream is finished
}
// ClientTransport is the common interface for all gRPC client-side transport
@ -615,7 +622,7 @@ type ClientTransport interface {
// Close tears down this transport. Once it returns, the transport
// should not be accessed any more. The caller must make sure this
// is called only once.
Close() error
Close(err error)
// GracefulClose starts to tear down the transport: the transport will stop
// accepting new RPCs and NewStream will return error. Once all streams are
@ -649,8 +656,9 @@ type ClientTransport interface {
// HTTP/2).
GoAway() <-chan struct{}
// GetGoAwayReason returns the reason why GoAway frame was received.
GetGoAwayReason() GoAwayReason
// GetGoAwayReason returns the reason why GoAway frame was received, along
// with a human readable string with debug info.
GetGoAwayReason() (GoAwayReason, string)
// RemoteAddr returns the remote network address.
RemoteAddr() net.Addr

40
vendor/google.golang.org/grpc/internal/xds_handshake_cluster.go generated vendored Normal file
View File

@ -0,0 +1,40 @@
/*
* Copyright 2021 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package internal
import (
"google.golang.org/grpc/attributes"
"google.golang.org/grpc/resolver"
)
// handshakeClusterNameKey is the type used as the key to store cluster name in
// the Attributes field of resolver.Address.
type handshakeClusterNameKey struct{}
// SetXDSHandshakeClusterName returns a copy of addr in which the Attributes field
// is updated with the cluster name.
func SetXDSHandshakeClusterName(addr resolver.Address, clusterName string) resolver.Address {
addr.Attributes = addr.Attributes.WithValues(handshakeClusterNameKey{}, clusterName)
return addr
}
// GetXDSHandshakeClusterName returns cluster name stored in attr.
func GetXDSHandshakeClusterName(attr *attributes.Attributes) (string, bool) {
v := attr.Value(handshakeClusterNameKey{})
name, ok := v.(string)
return name, ok
}