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Update libkv dependency

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This commit is contained in:
NicoMen 2017-11-17 17:22:03 +01:00 • committed by Traefiker
parent cdab6b1796
commit 66e489addb
237 changed files with 62817 additions and 16116 deletions
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214
vendor/google.golang.org/grpc/transport/http_util.go generated vendored
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@ -1,33 +1,18 @@
/*
*
* Copyright 2014, Google Inc.
* All rights reserved.
* Copyright 2014 gRPC authors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* 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
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* http://www.apache.org/licenses/LICENSE-2.0
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* 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.
*
*/
@ -36,24 +21,25 @@ package transport
import (
"bufio"
"bytes"
"encoding/base64"
"fmt"
"io"
"net"
"net/http"
"strconv"
"strings"
"sync/atomic"
"time"
"github.com/golang/protobuf/proto"
"golang.org/x/net/http2"
"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/metadata"
"google.golang.org/grpc/status"
)
const (
// The primary user agent
primaryUA = "grpc-go/1.0"
// http2MaxFrameLen specifies the max length of a HTTP2 frame.
http2MaxFrameLen = 16384 // 16KB frame
// http://http2.github.io/http2-spec/#SettingValues
@ -87,18 +73,39 @@ var (
codes.ResourceExhausted: http2.ErrCodeEnhanceYourCalm,
codes.PermissionDenied: http2.ErrCodeInadequateSecurity,
}
httpStatusConvTab = map[int]codes.Code{
// 400 Bad Request - INTERNAL.
http.StatusBadRequest: codes.Internal,
// 401 Unauthorized - UNAUTHENTICATED.
http.StatusUnauthorized: codes.Unauthenticated,
// 403 Forbidden - PERMISSION_DENIED.
http.StatusForbidden: codes.PermissionDenied,
// 404 Not Found - UNIMPLEMENTED.
http.StatusNotFound: codes.Unimplemented,
// 429 Too Many Requests - UNAVAILABLE.
http.StatusTooManyRequests: codes.Unavailable,
// 502 Bad Gateway - UNAVAILABLE.
http.StatusBadGateway: codes.Unavailable,
// 503 Service Unavailable - UNAVAILABLE.
http.StatusServiceUnavailable: codes.Unavailable,
// 504 Gateway timeout - UNAVAILABLE.
http.StatusGatewayTimeout: codes.Unavailable,
}
)
// Records the states during HPACK decoding. Must be reset once the
// decoding of the entire headers are finished.
type decodeState struct {
err error // first error encountered decoding
encoding string
// statusCode caches the stream status received from the trailer
// the server sent. Client side only.
statusCode codes.Code
statusDesc string
// statusGen caches the stream status received from the trailer the server
// sent. Client side only. Do not access directly. After all trailers are
// parsed, use the status method to retrieve the status.
statusGen *status.Status
// rawStatusCode and rawStatusMsg are set from the raw trailer fields and are not
// intended for direct access outside of parsing.
rawStatusCode *int
rawStatusMsg string
httpStatus *int
// Server side only fields.
timeoutSet bool
timeout time.Duration
@ -121,6 +128,7 @@ func isReservedHeader(hdr string) bool {
"grpc-message",
"grpc-status",
"grpc-timeout",
"grpc-status-details-bin",
"te":
return true
default:
@ -139,12 +147,6 @@ func isWhitelistedPseudoHeader(hdr string) bool {
}
}
func (d *decodeState) setErr(err error) {
if d.err == nil {
d.err = err
}
}
func validContentType(t string) bool {
e := "application/grpc"
if !strings.HasPrefix(t, e) {
@ -158,56 +160,135 @@ func validContentType(t string) bool {
return true
}
func (d *decodeState) processHeaderField(f hpack.HeaderField) {
func (d *decodeState) status() *status.Status {
if d.statusGen == nil {
// No status-details were provided; generate status using code/msg.
d.statusGen = status.New(codes.Code(int32(*(d.rawStatusCode))), d.rawStatusMsg)
}
return d.statusGen
}
const binHdrSuffix = "-bin"
func encodeBinHeader(v []byte) string {
return base64.RawStdEncoding.EncodeToString(v)
}
func decodeBinHeader(v string) ([]byte, error) {
if len(v)%4 == 0 {
// Input was padded, or padding was not necessary.
return base64.StdEncoding.DecodeString(v)
}
return base64.RawStdEncoding.DecodeString(v)
}
func encodeMetadataHeader(k, v string) string {
if strings.HasSuffix(k, binHdrSuffix) {
return encodeBinHeader(([]byte)(v))
}
return v
}
func decodeMetadataHeader(k, v string) (string, error) {
if strings.HasSuffix(k, binHdrSuffix) {
b, err := decodeBinHeader(v)
return string(b), err
}
return v, nil
}
func (d *decodeState) decodeResponseHeader(frame *http2.MetaHeadersFrame) error {
for _, hf := range frame.Fields {
if err := d.processHeaderField(hf); err != nil {
return err
}
}
// If grpc status exists, no need to check further.
if d.rawStatusCode != nil || d.statusGen != nil {
return nil
}
// If grpc status doesn't exist and http status doesn't exist,
// then it's a malformed header.
if d.httpStatus == nil {
return streamErrorf(codes.Internal, "malformed header: doesn't contain status(gRPC or HTTP)")
}
if *(d.httpStatus) != http.StatusOK {
code, ok := httpStatusConvTab[*(d.httpStatus)]
if !ok {
code = codes.Unknown
}
return streamErrorf(code, http.StatusText(*(d.httpStatus)))
}
// gRPC status doesn't exist and http status is OK.
// Set rawStatusCode to be unknown and return nil error.
// So that, if the stream has ended this Unknown status
// will be propogated to the user.
// Otherwise, it will be ignored. In which case, status from
// a later trailer, that has StreamEnded flag set, is propogated.
code := int(codes.Unknown)
d.rawStatusCode = &code
return nil
}
func (d *decodeState) processHeaderField(f hpack.HeaderField) error {
switch f.Name {
case "content-type":
if !validContentType(f.Value) {
d.setErr(streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value))
return
return streamErrorf(codes.FailedPrecondition, "transport: received the unexpected content-type %q", f.Value)
}
case "grpc-encoding":
d.encoding = f.Value
case "grpc-status":
code, err := strconv.Atoi(f.Value)
if err != nil {
d.setErr(streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err))
return
return streamErrorf(codes.Internal, "transport: malformed grpc-status: %v", err)
}
d.statusCode = codes.Code(code)
d.rawStatusCode = &code
case "grpc-message":
d.statusDesc = decodeGrpcMessage(f.Value)
d.rawStatusMsg = decodeGrpcMessage(f.Value)
case "grpc-status-details-bin":
v, err := decodeBinHeader(f.Value)
if err != nil {
return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
}
s := &spb.Status{}
if err := proto.Unmarshal(v, s); err != nil {
return streamErrorf(codes.Internal, "transport: malformed grpc-status-details-bin: %v", err)
}
d.statusGen = status.FromProto(s)
case "grpc-timeout":
d.timeoutSet = true
var err error
d.timeout, err = decodeTimeout(f.Value)
if err != nil {
d.setErr(streamErrorf(codes.Internal, "transport: malformed time-out: %v", err))
return
if d.timeout, err = decodeTimeout(f.Value); err != nil {
return streamErrorf(codes.Internal, "transport: malformed time-out: %v", err)
}
case ":path":
d.method = f.Value
case ":status":
code, err := strconv.Atoi(f.Value)
if err != nil {
return streamErrorf(codes.Internal, "transport: malformed http-status: %v", err)
}
d.httpStatus = &code
default:
if !isReservedHeader(f.Name) || isWhitelistedPseudoHeader(f.Name) {
if f.Name == "user-agent" {
i := strings.LastIndex(f.Value, " ")
if i == -1 {
// There is no application user agent string being set.
return
}
// Extract the application user agent string.
f.Value = f.Value[:i]
}
if d.mdata == nil {
d.mdata = make(map[string][]string)
}
k, v, err := metadata.DecodeKeyValue(f.Name, f.Value)
v, err := decodeMetadataHeader(f.Name, f.Value)
if err != nil {
grpclog.Printf("Failed to decode (%q, %q): %v", f.Name, f.Value, err)
return
errorf("Failed to decode metadata header (%q, %q): %v", f.Name, f.Value, err)
return nil
}
d.mdata[k] = append(d.mdata[k], v)
d.mdata[f.Name] = append(d.mdata[f.Name], v)
}
}
return nil
}
type timeoutUnit uint8
@ -379,6 +460,9 @@ func newFramer(conn net.Conn) *framer {
writer: bufio.NewWriterSize(conn, http2IOBufSize),
}
f.fr = http2.NewFramer(f.writer, f.reader)
// Opt-in to Frame reuse API on framer to reduce garbage.
// Frames aren't safe to read from after a subsequent call to ReadFrame.
f.fr.SetReuseFrames()
f.fr.ReadMetaHeaders = hpack.NewDecoder(http2InitHeaderTableSize, nil)
return f
}