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expose/cmd/webdav.go
Knut Ahlers 124a2b24f5
Add basic implementation of WebDAV Folder expose
Signed-off-by: Knut Ahlers <knut@ahlers.me>
2017-08-05 14:55:41 +02:00

86 lines
2.2 KiB
Go

package cmd
import (
"fmt"
"net"
"net/http"
"os"
"os/signal"
"golang.org/x/net/webdav"
"github.com/Luzifer/expose/ngrok2"
http_helper "github.com/Luzifer/go_helpers/http"
"github.com/spf13/cobra"
)
// webdavCmd represents the serve command
var webdavCmd = &cobra.Command{
Use: "webdav",
Short: "Exposes the current directory using WebDAV",
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)
}
srv := &webdav.Handler{
Prefix: "/",
FileSystem: webdav.Dir("."),
LockSystem: webdav.NewMemLS(),
}
logging := http_helper.NewHTTPLogHandler(srv)
go http.Serve(listener, logging)
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(webdavCmd)
// Here you will define your flags and configuration settings.
// Cobra supports Persistent Flags which will work for this command
// and all subcommands, e.g.:
// webdavCmd.PersistentFlags().String("foo", "", "A help for foo")
// Cobra supports local flags which will only run when this command
// is called directly, e.g.:
// webdavCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle")
}