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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,110 @@ | ||
| package cmd | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "github.com/nwtgck/go-piping-tunnel/io_progress" | ||
| "github.com/nwtgck/go-piping-tunnel/util" | ||
| "github.com/spf13/cobra" | ||
| "io" | ||
| "net" | ||
| "net/http" | ||
| "os" | ||
| "strings" | ||
| "time" | ||
| ) | ||
|
|
||
| var clientHostPort int | ||
|
|
||
| func init() { | ||
| RootCmd.AddCommand(clientCmd) | ||
| clientCmd.Flags().IntVarP(&clientHostPort, "port", "p", 0, "TCP port of client host") | ||
| } | ||
|
|
||
| var clientCmd = &cobra.Command{ | ||
| Use: "client", | ||
| Short: "Run client-host", | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| clientToServerPath, serverToClientPath, err := generatePaths(args) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| ln, err := net.Listen("tcp", fmt.Sprintf(":%d", clientHostPort)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| clientToServerUrl, err := util.UrlJoin(serverUrl, clientToServerPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| serverToClientUrl, err := util.UrlJoin(serverUrl, serverToClientPath) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| // (from: https://stackoverflow.com/a/43425461) | ||
| clientHostPort = ln.Addr().(*net.TCPAddr).Port | ||
| fmt.Printf("[INFO] Client host listening on %d ...\n", clientHostPort) | ||
| fmt.Println("[INFO] Hint: Server host (socat + curl)") | ||
| fmt.Printf( | ||
| " socat 'EXEC:curl -NsS %s!!EXEC:curl -NsST - %s' TCP:127.0.0.1:<YOUR PORT>\n", | ||
| strings.Replace(clientToServerUrl, ":", "\\:", -1), | ||
| strings.Replace(serverToClientUrl, ":", "\\:", -1), | ||
| ) | ||
| fmt.Println("[INFO] Hint: Server host (piping-tunnel)") | ||
| fmt.Printf( | ||
| " piping-tunnel -s %s server -p <YOUR PORT> %s %s\n", | ||
| serverUrl, | ||
| clientToServerPath, | ||
| serverToClientPath, | ||
| ) | ||
| conn, err := ln.Accept() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| fmt.Println("[INFO] accepted") | ||
| // Refuse another new connection | ||
| ln.Close() | ||
| httpClient := util.CreateHttpClient(insecure) | ||
| if dnsServer != "" { | ||
| // Set DNS resolver | ||
| httpClient.Transport.(*http.Transport).DialContext = util.CreateDialContext(dnsServer) | ||
| } | ||
| var progress *io_progress.IOProgress = nil | ||
| if showProgress { | ||
| p := io_progress.NewIOProgress(conn, os.Stderr, func(progress *io_progress.IOProgress) string { | ||
| return fmt.Sprintf( | ||
| "↑ %s (%s/s) | ↓ %s (%s/s)", | ||
| util.HumanizeBytes(float64(progress.CurrReadBytes)), | ||
| util.HumanizeBytes(float64(progress.CurrReadBytes)/time.Since(progress.StartTime).Seconds()), | ||
| util.HumanizeBytes(float64(progress.CurrWriteBytes)), | ||
| util.HumanizeBytes(float64(progress.CurrWriteBytes)/time.Since(progress.StartTime).Seconds()), | ||
| ) | ||
| }) | ||
| progress = &p | ||
| } | ||
| var reader io.Reader = conn | ||
| if progress != nil { | ||
| reader = progress | ||
| } | ||
| _, err = httpClient.Post(clientToServerUrl, "application/octet-stream", reader) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| res, err := httpClient.Get(serverToClientUrl) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| var writer io.Writer = conn | ||
| if progress != nil { | ||
| writer = io.MultiWriter(conn, progress) | ||
| } | ||
| _, err = io.Copy(writer, res.Body) | ||
| fmt.Println() | ||
| if err != nil { | ||
| return err | ||
| } | ||
| fmt.Println("[INFO] Finished") | ||
|
|
||
| return nil | ||
| }, | ||
| } |
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