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package main
import (
"flag"
"log"
"net"
"net/http"
"os"
"github.com/target/goalert/devtools/sendit"
)
func serverWrapper(redirHTTPFwd bool, next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
if redirHTTPFwd && req.Header.Get("X-Forwarded-Proto") == "http" {
u := *req.URL
u.Host = req.Host
u.Scheme = "https"
http.Redirect(w, req, u.String(), http.StatusTemporaryRedirect)
return
}
if req.URL.Path == "/" {
// blank 200 on root path
return
}
next.ServeHTTP(w, req)
})
}
func main() {
addr := os.Getenv("SENDIT_ADDR")
if addr == "" {
addr = "127.0.0.1:5050"
}
flag.StringVar(&addr, "addr", addr, "Local address to listen on [SENDIT_ADDR].")
secret := flag.String("secret", os.Getenv("SENDIT_SECRET"), "Secret signing string [SENDIT_SECRET].")
prefix := flag.String("http-prefix", os.Getenv("SENDIT_HTTP_PREFIX"), "HTTP prefix [SENDIT_HTTP_PREFIX].")
httpsRedir := flag.Bool("https-redir", os.Getenv("SENDIT_HTTPS_REDIR") == "1", "Enable HTTP -> HTTPS redirect if X-Forwarded-Proto == http [SENDIT_HTTPS_REDIR].")
flag.Parse()
log.SetFlags(log.Lshortfile)
l, err := net.Listen("tcp", addr)
if err != nil {
log.Fatal(err)
}
log.Println("Listening:", l.Addr().String())
srv := sendit.NewServer([]byte(*secret), *prefix)
log.Fatal(http.Serve(l, serverWrapper(*httpsRedir, srv)))
}
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