79 lines
1.8 KiB
Go
79 lines
1.8 KiB
Go
package client
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import (
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"io"
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"os"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/pkg/stdcopy"
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"github.com/docker/docker/pkg/term"
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)
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func (cli *DockerCli) holdHijackedConnection(setRawTerminal bool, inputStream io.ReadCloser, outputStream, errorStream io.Writer, resp types.HijackedResponse) error {
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var (
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err error
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oldState *term.State
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)
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if inputStream != nil && setRawTerminal && cli.isTerminalIn && os.Getenv("NORAW") == "" {
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oldState, err = term.SetRawTerminal(cli.inFd)
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if err != nil {
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return err
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}
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defer term.RestoreTerminal(cli.inFd, oldState)
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}
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receiveStdout := make(chan error, 1)
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if outputStream != nil || errorStream != nil {
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go func() {
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defer func() {
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if inputStream != nil {
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if setRawTerminal && cli.isTerminalIn {
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term.RestoreTerminal(cli.inFd, oldState)
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}
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inputStream.Close()
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}
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}()
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// When TTY is ON, use regular copy
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if setRawTerminal && outputStream != nil {
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_, err = io.Copy(outputStream, resp.Reader)
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} else {
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_, err = stdcopy.StdCopy(outputStream, errorStream, resp.Reader)
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}
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logrus.Debugf("[hijack] End of stdout")
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receiveStdout <- err
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}()
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}
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stdinDone := make(chan struct{})
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go func() {
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if inputStream != nil {
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io.Copy(resp.Conn, inputStream)
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logrus.Debugf("[hijack] End of stdin")
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}
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if err := resp.CloseWrite(); err != nil {
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logrus.Debugf("Couldn't send EOF: %s", err)
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}
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close(stdinDone)
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}()
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select {
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case err := <-receiveStdout:
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if err != nil {
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logrus.Debugf("Error receiveStdout: %s", err)
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return err
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}
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case <-stdinDone:
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if outputStream != nil || errorStream != nil {
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if err := <-receiveStdout; err != nil {
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logrus.Debugf("Error receiveStdout: %s", err)
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return err
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}
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}
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}
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return nil
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}
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