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expose/cmd/serve.go
Knut Ahlers 1d35b0988e
Initial version
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2017-04-14 02:45:38 +02:00

76 lines
2 KiB
Go

package cmd
import (
"fmt"
"net"
"net/http"
"os"
"os/signal"
"github.com/Luzifer/expose/ngrok2"
"github.com/spf13/cobra"
)
// serveCmd represents the serve command
var serveCmd = &cobra.Command{
Use: "serve",
Short: "A brief description of your command",
RunE: func(cmd *cobra.Command, args []string) error {
listener, err := net.Listen("tcp", "127.0.0.1:0")
if err != nil {
return fmt.Errorf("Unable to bind local HTTP server: %s", err)
}
_, port, err := net.SplitHostPort(listener.Addr().String())
if err != nil {
return fmt.Errorf("Unable to determine bound port: %s", err)
}
name := fmt.Sprintf("expose_%s", port)
if tun, err := client.GetTunnelByName(name); err == nil {
return fmt.Errorf("Address %q already has an active tunnel with URL %s", tun.Config.Addr, tun.PublicURL)
}
tun, err := client.CreateTunnel(ngrok2.CreateTunnelInput{
Name: name,
Addr: port,
Proto: "http",
BindTLS: "true",
Inspect: false,
})
if err != nil {
return fmt.Errorf("Unable to create tunnel: %s", err)
}
go http.Serve(listener, http.FileServer(http.Dir(".")))
fmt.Printf("Created HTTP server for this directory with URL %s\nPress Ctrl+C to stop server and tunnel", tun.PublicURL)
c := make(chan os.Signal, 1)
signal.Notify(c, os.Interrupt)
for range c {
if err := client.StopTunnel(tun.Name); err != nil {
return fmt.Errorf("Unable to stop tunnel %q: %s", tun.Name, err)
}
fmt.Printf("\nSuccessfully stopped server and tunnel.\n")
return nil
}
return nil
},
}
func init() {
RootCmd.AddCommand(serveCmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// serveCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// serveCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}