webhook/platform_windows.go
Ian Roberts 596cc5e70c feat: add ability to listen on unix socket/named pipe
Add a -socket option that configures the server to listen on a Unix-domain socket or Windows named pipe instead of a TCP port.  This allows webhook to be used behind a reverse proxy on multi-tenant shared hosting without the need to choose (and the permission to bind to) a free port number.

On Windows, -socket is expected to be a named pipe such as \\.\pipe\webhook, and the code uses https://github.com/microsoft/go-winio to bind the listening socket.  On other platforms, -socket is the path to a Unix domain socket such as /tmp/webhook.sock, or an abstract socket name starting with @, bound using the regular net.Listen function with the "network" parameter set to "unix".

Note: this pushes our minimum Go version up to 1.21 as that is what go-winio requires, but that is already the minimum version against which we are testing in the CI matrix.
2024-10-19 20:30:16 +01:00

23 lines
512 B
Go

//go:build windows
// +build windows
package main
import (
"flag"
"fmt"
"github.com/Microsoft/go-winio"
"net"
)
func platformFlags() {
flag.StringVar(&socket, "socket", "", "path to a Windows named pipe (e.g. \\\\.\\pipe\\webhook) to use instead of listening on an ip and port; if specified, the ip and port options are ignored")
}
func trySocketListener() (net.Listener, error) {
if socket != "" {
addr = fmt.Sprintf("{pipe:%s}", socket)
return winio.ListenPipe(socket, nil)
}
return nil, nil
}