diff options
Diffstat (limited to 'vendor/k8s.io/client-go/tools/remotecommand')
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/doc.go | 20 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/errorstream.go | 55 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/reader.go | 41 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go | 142 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/resize.go | 33 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/v1.go | 160 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/v2.go | 195 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/v3.go | 111 | ||||
| -rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/v4.go | 119 |
9 files changed, 0 insertions, 876 deletions
diff --git a/vendor/k8s.io/client-go/tools/remotecommand/doc.go b/vendor/k8s.io/client-go/tools/remotecommand/doc.go deleted file mode 100644 index ac06a9cd3..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/doc.go +++ /dev/null @@ -1,20 +0,0 @@ -/* -Copyright 2015 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 adds support for executing commands in containers, -// with support for separate stdin, stdout, and stderr streams, as well as -// TTY. -package remotecommand // import "k8s.io/client-go/tools/remotecommand" diff --git a/vendor/k8s.io/client-go/tools/remotecommand/errorstream.go b/vendor/k8s.io/client-go/tools/remotecommand/errorstream.go deleted file mode 100644 index 360276b65..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/errorstream.go +++ /dev/null @@ -1,55 +0,0 @@ -/* -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 ( - "fmt" - "io" - "io/ioutil" - - "k8s.io/apimachinery/pkg/util/runtime" -) - -// errorStreamDecoder interprets the data on the error channel and creates a go error object from it. -type errorStreamDecoder interface { - decode(message []byte) error -} - -// watchErrorStream watches the errorStream for remote command error data, -// decodes it with the given errorStreamDecoder, sends the decoded error (or nil if the remote -// command exited successfully) to the returned error channel, and closes it. -// This function returns immediately. -func watchErrorStream(errorStream io.Reader, d errorStreamDecoder) chan error { - errorChan := make(chan error) - - go func() { - defer runtime.HandleCrash() - - message, err := ioutil.ReadAll(errorStream) - switch { - case err != nil && err != io.EOF: - errorChan <- fmt.Errorf("error reading from error stream: %s", err) - case len(message) > 0: - errorChan <- d.decode(message) - default: - errorChan <- nil - } - close(errorChan) - }() - - return errorChan -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/reader.go b/vendor/k8s.io/client-go/tools/remotecommand/reader.go deleted file mode 100644 index d1f1be34c..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/reader.go +++ /dev/null @@ -1,41 +0,0 @@ -/* -Copyright 2018 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 ( - "io" -) - -// readerWrapper delegates to an io.Reader so that only the io.Reader interface is implemented, -// to keep io.Copy from doing things we don't want when copying from the reader to the data stream. -// -// If the Stdin io.Reader provided to remotecommand implements a WriteTo function (like bytes.Buffer does[1]), -// io.Copy calls that method[2] to attempt to write the entire buffer to the stream in one call. -// That results in an oversized call to spdystream.Stream#Write [3], -// which results in a single oversized data frame[4] that is too large. -// -// [1] https://golang.org/pkg/bytes/#Buffer.WriteTo -// [2] https://golang.org/pkg/io/#Copy -// [3] https://github.com/kubernetes/kubernetes/blob/90295640ef87db9daa0144c5617afe889e7992b2/vendor/github.com/docker/spdystream/stream.go#L66-L73 -// [4] https://github.com/kubernetes/kubernetes/blob/90295640ef87db9daa0144c5617afe889e7992b2/vendor/github.com/docker/spdystream/spdy/write.go#L302-L304 -type readerWrapper struct { - reader io.Reader -} - -func (r readerWrapper) Read(p []byte) (int, error) { - return r.reader.Read(p) -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go b/vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go deleted file mode 100644 index 892d8d105..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/remotecommand.go +++ /dev/null @@ -1,142 +0,0 @@ -/* -Copyright 2015 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 ( - "fmt" - "io" - "net/http" - "net/url" - - "k8s.io/klog" - - "k8s.io/apimachinery/pkg/util/httpstream" - "k8s.io/apimachinery/pkg/util/remotecommand" - restclient "k8s.io/client-go/rest" - spdy "k8s.io/client-go/transport/spdy" -) - -// StreamOptions holds information pertaining to the current streaming session: -// input/output streams, if the client is requesting a TTY, and a terminal size queue to -// support terminal resizing. -type StreamOptions struct { - Stdin io.Reader - Stdout io.Writer - Stderr io.Writer - Tty bool - TerminalSizeQueue TerminalSizeQueue -} - -// Executor is an interface for transporting shell-style streams. -type Executor interface { - // Stream initiates the transport of the standard shell streams. It will transport any - // non-nil stream to a remote system, and return an error if a problem occurs. If tty - // is set, the stderr stream is not used (raw TTY manages stdout and stderr over the - // stdout stream). - Stream(options StreamOptions) error -} - -type streamCreator interface { - CreateStream(headers http.Header) (httpstream.Stream, error) -} - -type streamProtocolHandler interface { - stream(conn streamCreator) error -} - -// streamExecutor handles transporting standard shell streams over an httpstream connection. -type streamExecutor struct { - upgrader spdy.Upgrader - transport http.RoundTripper - - method string - url *url.URL - protocols []string -} - -// NewSPDYExecutor connects to the provided server and upgrades the connection to -// multiplexed bidirectional streams. -func NewSPDYExecutor(config *restclient.Config, method string, url *url.URL) (Executor, error) { - wrapper, upgradeRoundTripper, err := spdy.RoundTripperFor(config) - if err != nil { - return nil, err - } - return NewSPDYExecutorForTransports(wrapper, upgradeRoundTripper, method, url) -} - -// NewSPDYExecutorForTransports connects to the provided server using the given transport, -// upgrades the response using the given upgrader to multiplexed bidirectional streams. -func NewSPDYExecutorForTransports(transport http.RoundTripper, upgrader spdy.Upgrader, method string, url *url.URL) (Executor, error) { - return NewSPDYExecutorForProtocols( - transport, upgrader, method, url, - remotecommand.StreamProtocolV4Name, - remotecommand.StreamProtocolV3Name, - remotecommand.StreamProtocolV2Name, - remotecommand.StreamProtocolV1Name, - ) -} - -// NewSPDYExecutorForProtocols connects to the provided server and upgrades the connection to -// multiplexed bidirectional streams using only the provided protocols. Exposed for testing, most -// callers should use NewSPDYExecutor or NewSPDYExecutorForTransports. -func NewSPDYExecutorForProtocols(transport http.RoundTripper, upgrader spdy.Upgrader, method string, url *url.URL, protocols ...string) (Executor, error) { - return &streamExecutor{ - upgrader: upgrader, - transport: transport, - method: method, - url: url, - protocols: protocols, - }, nil -} - -// Stream opens a protocol streamer to the server and streams until a client closes -// the connection or the server disconnects. -func (e *streamExecutor) Stream(options StreamOptions) error { - req, err := http.NewRequest(e.method, e.url.String(), nil) - if err != nil { - return fmt.Errorf("error creating request: %v", err) - } - - conn, protocol, err := spdy.Negotiate( - e.upgrader, - &http.Client{Transport: e.transport}, - req, - e.protocols..., - ) - if err != nil { - return err - } - defer conn.Close() - - var streamer streamProtocolHandler - - switch protocol { - case remotecommand.StreamProtocolV4Name: - streamer = newStreamProtocolV4(options) - case remotecommand.StreamProtocolV3Name: - streamer = newStreamProtocolV3(options) - case remotecommand.StreamProtocolV2Name: - streamer = newStreamProtocolV2(options) - case "": - klog.V(4).Infof("The server did not negotiate a streaming protocol version. Falling back to %s", remotecommand.StreamProtocolV1Name) - fallthrough - case remotecommand.StreamProtocolV1Name: - streamer = newStreamProtocolV1(options) - } - - return streamer.stream(conn) -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/resize.go b/vendor/k8s.io/client-go/tools/remotecommand/resize.go deleted file mode 100644 index c838f21ba..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/resize.go +++ /dev/null @@ -1,33 +0,0 @@ -/* -Copyright 2017 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 - -// TerminalSize and TerminalSizeQueue was a part of k8s.io/kubernetes/pkg/util/term -// and were moved in order to decouple client from other term dependencies - -// TerminalSize represents the width and height of a terminal. -type TerminalSize struct { - Width uint16 - Height uint16 -} - -// TerminalSizeQueue is capable of returning terminal resize events as they occur. -type TerminalSizeQueue interface { - // Next returns the new terminal size after the terminal has been resized. It returns nil when - // monitoring has been stopped. - Next() *TerminalSize -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/v1.go b/vendor/k8s.io/client-go/tools/remotecommand/v1.go deleted file mode 100644 index 4120f1f5f..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/v1.go +++ /dev/null @@ -1,160 +0,0 @@ -/* -Copyright 2015 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 ( - "fmt" - "io" - "io/ioutil" - "net/http" - - "k8s.io/api/core/v1" - "k8s.io/apimachinery/pkg/util/httpstream" - "k8s.io/klog" -) - -// streamProtocolV1 implements the first version of the streaming exec & attach -// protocol. This version has some bugs, such as not being able to detect when -// non-interactive stdin data has ended. See http://issues.k8s.io/13394 and -// http://issues.k8s.io/13395 for more details. -type streamProtocolV1 struct { - StreamOptions - - errorStream httpstream.Stream - remoteStdin httpstream.Stream - remoteStdout httpstream.Stream - remoteStderr httpstream.Stream -} - -var _ streamProtocolHandler = &streamProtocolV1{} - -func newStreamProtocolV1(options StreamOptions) streamProtocolHandler { - return &streamProtocolV1{ - StreamOptions: options, - } -} - -func (p *streamProtocolV1) stream(conn streamCreator) error { - doneChan := make(chan struct{}, 2) - errorChan := make(chan error) - - cp := func(s string, dst io.Writer, src io.Reader) { - klog.V(6).Infof("Copying %s", s) - defer klog.V(6).Infof("Done copying %s", s) - if _, err := io.Copy(dst, src); err != nil && err != io.EOF { - klog.Errorf("Error copying %s: %v", s, err) - } - if s == v1.StreamTypeStdout || s == v1.StreamTypeStderr { - doneChan <- struct{}{} - } - } - - // set up all the streams first - var err error - headers := http.Header{} - headers.Set(v1.StreamType, v1.StreamTypeError) - p.errorStream, err = conn.CreateStream(headers) - if err != nil { - return err - } - defer p.errorStream.Reset() - - // Create all the streams first, then start the copy goroutines. The server doesn't start its copy - // goroutines until it's received all of the streams. If the client creates the stdin stream and - // immediately begins copying stdin data to the server, it's possible to overwhelm and wedge the - // spdy frame handler in the server so that it is full of unprocessed frames. The frames aren't - // getting processed because the server hasn't started its copying, and it won't do that until it - // gets all the streams. By creating all the streams first, we ensure that the server is ready to - // process data before the client starts sending any. See https://issues.k8s.io/16373 for more info. - if p.Stdin != nil { - headers.Set(v1.StreamType, v1.StreamTypeStdin) - p.remoteStdin, err = conn.CreateStream(headers) - if err != nil { - return err - } - defer p.remoteStdin.Reset() - } - - if p.Stdout != nil { - headers.Set(v1.StreamType, v1.StreamTypeStdout) - p.remoteStdout, err = conn.CreateStream(headers) - if err != nil { - return err - } - defer p.remoteStdout.Reset() - } - - if p.Stderr != nil && !p.Tty { - headers.Set(v1.StreamType, v1.StreamTypeStderr) - p.remoteStderr, err = conn.CreateStream(headers) - if err != nil { - return err - } - defer p.remoteStderr.Reset() - } - - // now that all the streams have been created, proceed with reading & copying - - // always read from errorStream - go func() { - message, err := ioutil.ReadAll(p.errorStream) - if err != nil && err != io.EOF { - errorChan <- fmt.Errorf("Error reading from error stream: %s", err) - return - } - if len(message) > 0 { - errorChan <- fmt.Errorf("Error executing remote command: %s", message) - return - } - }() - - if p.Stdin != nil { - // TODO this goroutine will never exit cleanly (the io.Copy never unblocks) - // because stdin is not closed until the process exits. If we try to call - // stdin.Close(), it returns no error but doesn't unblock the copy. It will - // exit when the process exits, instead. - go cp(v1.StreamTypeStdin, p.remoteStdin, readerWrapper{p.Stdin}) - } - - waitCount := 0 - completedStreams := 0 - - if p.Stdout != nil { - waitCount++ - go cp(v1.StreamTypeStdout, p.Stdout, p.remoteStdout) - } - - if p.Stderr != nil && !p.Tty { - waitCount++ - go cp(v1.StreamTypeStderr, p.Stderr, p.remoteStderr) - } - -Loop: - for { - select { - case <-doneChan: - completedStreams++ - if completedStreams == waitCount { - break Loop - } - case err := <-errorChan: - return err - } - } - - return nil -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/v2.go b/vendor/k8s.io/client-go/tools/remotecommand/v2.go deleted file mode 100644 index 4b0001502..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/v2.go +++ /dev/null @@ -1,195 +0,0 @@ -/* -Copyright 2015 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 ( - "fmt" - "io" - "io/ioutil" - "net/http" - "sync" - - "k8s.io/api/core/v1" - "k8s.io/apimachinery/pkg/util/runtime" -) - -// streamProtocolV2 implements version 2 of the streaming protocol for attach -// and exec. The original streaming protocol was metav1. As a result, this -// version is referred to as version 2, even though it is the first actual -// numbered version. -type streamProtocolV2 struct { - StreamOptions - - errorStream io.Reader - remoteStdin io.ReadWriteCloser - remoteStdout io.Reader - remoteStderr io.Reader -} - -var _ streamProtocolHandler = &streamProtocolV2{} - -func newStreamProtocolV2(options StreamOptions) streamProtocolHandler { - return &streamProtocolV2{ - StreamOptions: options, - } -} - -func (p *streamProtocolV2) createStreams(conn streamCreator) error { - var err error - headers := http.Header{} - - // set up error stream - headers.Set(v1.StreamType, v1.StreamTypeError) - p.errorStream, err = conn.CreateStream(headers) - if err != nil { - return err - } - - // set up stdin stream - if p.Stdin != nil { - headers.Set(v1.StreamType, v1.StreamTypeStdin) - p.remoteStdin, err = conn.CreateStream(headers) - if err != nil { - return err - } - } - - // set up stdout stream - if p.Stdout != nil { - headers.Set(v1.StreamType, v1.StreamTypeStdout) - p.remoteStdout, err = conn.CreateStream(headers) - if err != nil { - return err - } - } - - // set up stderr stream - if p.Stderr != nil && !p.Tty { - headers.Set(v1.StreamType, v1.StreamTypeStderr) - p.remoteStderr, err = conn.CreateStream(headers) - if err != nil { - return err - } - } - return nil -} - -func (p *streamProtocolV2) copyStdin() { - if p.Stdin != nil { - var once sync.Once - - // copy from client's stdin to container's stdin - go func() { - defer runtime.HandleCrash() - - // if p.stdin is noninteractive, p.g. `echo abc | kubectl exec -i <pod> -- cat`, make sure - // we close remoteStdin as soon as the copy from p.stdin to remoteStdin finishes. Otherwise - // the executed command will remain running. - defer once.Do(func() { p.remoteStdin.Close() }) - - if _, err := io.Copy(p.remoteStdin, readerWrapper{p.Stdin}); err != nil { - runtime.HandleError(err) - } - }() - - // read from remoteStdin until the stream is closed. this is essential to - // be able to exit interactive sessions cleanly and not leak goroutines or - // hang the client's terminal. - // - // TODO we aren't using go-dockerclient any more; revisit this to determine if it's still - // required by engine-api. - // - // go-dockerclient's current hijack implementation - // (https://github.com/fsouza/go-dockerclient/blob/89f3d56d93788dfe85f864a44f85d9738fca0670/client.go#L564) - // waits for all three streams (stdin/stdout/stderr) to finish copying - // before returning. When hijack finishes copying stdout/stderr, it calls - // Close() on its side of remoteStdin, which allows this copy to complete. - // When that happens, we must Close() on our side of remoteStdin, to - // allow the copy in hijack to complete, and hijack to return. - go func() { - defer runtime.HandleCrash() - defer once.Do(func() { p.remoteStdin.Close() }) - - // this "copy" doesn't actually read anything - it's just here to wait for - // the server to close remoteStdin. - if _, err := io.Copy(ioutil.Discard, p.remoteStdin); err != nil { - runtime.HandleError(err) - } - }() - } -} - -func (p *streamProtocolV2) copyStdout(wg *sync.WaitGroup) { - if p.Stdout == nil { - return - } - - wg.Add(1) - go func() { - defer runtime.HandleCrash() - defer wg.Done() - - if _, err := io.Copy(p.Stdout, p.remoteStdout); err != nil { - runtime.HandleError(err) - } - }() -} - -func (p *streamProtocolV2) copyStderr(wg *sync.WaitGroup) { - if p.Stderr == nil || p.Tty { - return - } - - wg.Add(1) - go func() { - defer runtime.HandleCrash() - defer wg.Done() - - if _, err := io.Copy(p.Stderr, p.remoteStderr); err != nil { - runtime.HandleError(err) - } - }() -} - -func (p *streamProtocolV2) 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, &errorDecoderV2{}) - - 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 -} - -// errorDecoderV2 interprets the error channel data as plain text. -type errorDecoderV2 struct{} - -func (d *errorDecoderV2) decode(message []byte) error { - return fmt.Errorf("error executing remote command: %s", message) -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/v3.go b/vendor/k8s.io/client-go/tools/remotecommand/v3.go deleted file mode 100644 index 846dd24a5..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/v3.go +++ /dev/null @@ -1,111 +0,0 @@ -/* -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 -} diff --git a/vendor/k8s.io/client-go/tools/remotecommand/v4.go b/vendor/k8s.io/client-go/tools/remotecommand/v4.go deleted file mode 100644 index 69ca934a0..000000000 --- a/vendor/k8s.io/client-go/tools/remotecommand/v4.go +++ /dev/null @@ -1,119 +0,0 @@ -/* -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" - "errors" - "fmt" - "strconv" - "sync" - - metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" - "k8s.io/apimachinery/pkg/util/remotecommand" - "k8s.io/client-go/util/exec" -) - -// streamProtocolV4 implements version 4 of the streaming protocol for attach -// and exec. This version adds support for exit codes on the error stream through -// the use of metav1.Status instead of plain text messages. -type streamProtocolV4 struct { - *streamProtocolV3 -} - -var _ streamProtocolHandler = &streamProtocolV4{} - -func newStreamProtocolV4(options StreamOptions) streamProtocolHandler { - return &streamProtocolV4{ - streamProtocolV3: newStreamProtocolV3(options).(*streamProtocolV3), - } -} - -func (p *streamProtocolV4) createStreams(conn streamCreator) error { - return p.streamProtocolV3.createStreams(conn) -} - -func (p *streamProtocolV4) handleResizes() { - p.streamProtocolV3.handleResizes() -} - -func (p *streamProtocolV4) 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, &errorDecoderV4{}) - - 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 -} - -// errorDecoderV4 interprets the json-marshaled metav1.Status on the error channel -// and creates an exec.ExitError from it. -type errorDecoderV4 struct{} - -func (d *errorDecoderV4) decode(message []byte) error { - status := metav1.Status{} - err := json.Unmarshal(message, &status) - if err != nil { - return fmt.Errorf("error stream protocol error: %v in %q", err, string(message)) - } - switch status.Status { - case metav1.StatusSuccess: - return nil - case metav1.StatusFailure: - if status.Reason == remotecommand.NonZeroExitCodeReason { - if status.Details == nil { - return errors.New("error stream protocol error: details must be set") - } - for i := range status.Details.Causes { - c := &status.Details.Causes[i] - if c.Type != remotecommand.ExitCodeCauseType { - continue - } - - rc, err := strconv.ParseUint(c.Message, 10, 8) - if err != nil { - return fmt.Errorf("error stream protocol error: invalid exit code value %q", c.Message) - } - return exec.CodeExitError{ - Err: fmt.Errorf("command terminated with exit code %d", rc), - Code: int(rc), - } - } - - return fmt.Errorf("error stream protocol error: no %s cause given", remotecommand.ExitCodeCauseType) - } - default: - return errors.New("error stream protocol error: unknown error") - } - - return fmt.Errorf(status.Message) -} |