mirror of
https://github.com/ceph/ceph-csi.git
synced 2025-03-10 01:19:29 +00:00
f87d06ed85
Several packages are only used while running the e2e suite. These packages are less important to update, as the they can not influence the final executable that is part of the Ceph-CSI container-image. By moving these dependencies out of the main Ceph-CSI go.mod, it is easier to identify if a reported CVE affects Ceph-CSI, or only the testing (like most of the Kubernetes CVEs). Signed-off-by: Niels de Vos <ndevos@ibm.com>
112 lines
2.5 KiB
Go
112 lines
2.5 KiB
Go
/*
|
|
Copyright 2016 The Kubernetes 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 remotecommand
|
|
|
|
import (
|
|
"encoding/json"
|
|
"io"
|
|
"net/http"
|
|
"sync"
|
|
|
|
"k8s.io/api/core/v1"
|
|
"k8s.io/apimachinery/pkg/util/runtime"
|
|
)
|
|
|
|
// streamProtocolV3 implements version 3 of the streaming protocol for attach
|
|
// and exec. This version adds support for resizing the container's terminal.
|
|
type streamProtocolV3 struct {
|
|
*streamProtocolV2
|
|
|
|
resizeStream io.Writer
|
|
}
|
|
|
|
var _ streamProtocolHandler = &streamProtocolV3{}
|
|
|
|
func newStreamProtocolV3(options StreamOptions) streamProtocolHandler {
|
|
return &streamProtocolV3{
|
|
streamProtocolV2: newStreamProtocolV2(options).(*streamProtocolV2),
|
|
}
|
|
}
|
|
|
|
func (p *streamProtocolV3) createStreams(conn streamCreator) error {
|
|
// set up the streams from v2
|
|
if err := p.streamProtocolV2.createStreams(conn); err != nil {
|
|
return err
|
|
}
|
|
|
|
// set up resize stream
|
|
if p.Tty {
|
|
headers := http.Header{}
|
|
headers.Set(v1.StreamType, v1.StreamTypeResize)
|
|
var err error
|
|
p.resizeStream, err = conn.CreateStream(headers)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (p *streamProtocolV3) handleResizes() {
|
|
if p.resizeStream == nil || p.TerminalSizeQueue == nil {
|
|
return
|
|
}
|
|
go func() {
|
|
defer runtime.HandleCrash()
|
|
|
|
encoder := json.NewEncoder(p.resizeStream)
|
|
for {
|
|
size := p.TerminalSizeQueue.Next()
|
|
if size == nil {
|
|
return
|
|
}
|
|
if err := encoder.Encode(&size); err != nil {
|
|
runtime.HandleError(err)
|
|
}
|
|
}
|
|
}()
|
|
}
|
|
|
|
func (p *streamProtocolV3) stream(conn streamCreator) error {
|
|
if err := p.createStreams(conn); err != nil {
|
|
return err
|
|
}
|
|
|
|
// now that all the streams have been created, proceed with reading & copying
|
|
|
|
errorChan := watchErrorStream(p.errorStream, &errorDecoderV3{})
|
|
|
|
p.handleResizes()
|
|
|
|
p.copyStdin()
|
|
|
|
var wg sync.WaitGroup
|
|
p.copyStdout(&wg)
|
|
p.copyStderr(&wg)
|
|
|
|
// we're waiting for stdout/stderr to finish copying
|
|
wg.Wait()
|
|
|
|
// waits for errorStream to finish reading with an error or nil
|
|
return <-errorChan
|
|
}
|
|
|
|
type errorDecoderV3 struct {
|
|
errorDecoderV2
|
|
}
|