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package main
import (
_ "embed"
"flag"
"fmt"
"log"
"net"
"net/http"
"net/http/httputil"
"os"
"path"
"path/filepath"
)
var (
hostport = flag.String("hostport", "[::]:31337", "TCP host:port to listen on")
sockdir = flag.String("sockdir", "./run", "directory full of unix sockets to monitor")
)
//go:embed "aegis.txt"
var core string
func main() {
flag.Parse()
fmt.Print(core)
log.SetFlags(0)
log.Printf("%s -> %s", *hostport, *sockdir)
http.DefaultServeMux.HandleFunc("/", proxyToUnixSocket)
log.Fatal(http.ListenAndServe(*hostport, nil))
}
func proxyToUnixSocket(w http.ResponseWriter, r *http.Request) {
name := path.Base(r.URL.Path)
fname := filepath.Join(*sockdir, name+".sock")
_, err := os.Stat(fname)
if os.IsNotExist(err) {
http.NotFound(w, r)
return
}
ts := &http.Transport{
Dial: func(_, _ string) (net.Conn, error) {
return net.Dial("unix", fname)
},
DisableKeepAlives: true,
}
rp := httputil.ReverseProxy{
Director: func(req *http.Request) {
req.URL.Scheme = "http"
req.URL.Host = "aegis"
req.URL.Path = "/metrics"
req.URL.RawPath = "/metrics"
},
Transport: ts,
}
rp.ServeHTTP(w, r)
}
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