mirror of https://github.com/containers/podman.git
80 lines
1.9 KiB
Go
80 lines
1.9 KiB
Go
// +build varlink
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package varlinkapi
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import (
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"bufio"
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"fmt"
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"io"
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"io/ioutil"
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"os"
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"github.com/containers/libpod/cmd/podman/varlink"
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"github.com/sirupsen/logrus"
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)
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// SendFile allows a client to send a file to the varlink server
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func (i *LibpodAPI) SendFile(call iopodman.VarlinkCall, ftype string, length int64) error {
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if !call.WantsUpgrade() {
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return call.ReplyErrorOccurred("client must use upgraded connection to send files")
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}
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outputFile, err := ioutil.TempFile("", "varlink_send")
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if err != nil {
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return call.ReplyErrorOccurred(err.Error())
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}
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defer outputFile.Close()
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if err = call.ReplySendFile(outputFile.Name()); err != nil {
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return call.ReplyErrorOccurred(err.Error())
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}
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writer := bufio.NewWriter(outputFile)
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defer writer.Flush()
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reader := call.Call.Reader
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if _, err := io.CopyN(writer, reader, length); err != nil {
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return err
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}
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logrus.Debugf("successfully received %s", outputFile.Name())
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// Send an ACK to the client
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call.Call.Writer.WriteString(fmt.Sprintf("%s:", outputFile.Name()))
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call.Call.Writer.Flush()
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return nil
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}
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// ReceiveFile allows the varlink server to send a file to a client
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func (i *LibpodAPI) ReceiveFile(call iopodman.VarlinkCall, filepath string, delete bool) error {
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if !call.WantsUpgrade() {
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return call.ReplyErrorOccurred("client must use upgraded connection to send files")
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}
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fs, err := os.Open(filepath)
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if err != nil {
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return call.ReplyErrorOccurred(err.Error())
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}
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fileInfo, err := fs.Stat()
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if err != nil {
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return call.ReplyErrorOccurred(err.Error())
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}
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// Send the file length down to client
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// Varlink connection upraded
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if err = call.ReplyReceiveFile(fileInfo.Size()); err != nil {
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return call.ReplyErrorOccurred(err.Error())
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}
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reader := bufio.NewReader(fs)
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_, err = reader.WriteTo(call.Writer)
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if err != nil {
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return err
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}
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if delete {
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if err := os.Remove(filepath); err != nil {
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return err
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}
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}
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return call.Writer.Flush()
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}
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