diff options
Diffstat (limited to 'vendor/k8s.io/client-go/tools/remotecommand/v4.go')
-rw-r--r-- | vendor/k8s.io/client-go/tools/remotecommand/v4.go | 119 |
1 files changed, 0 insertions, 119 deletions
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) -} |