Files
git-pages/src/caddy.go

41 lines
1.1 KiB
Go

package main
import (
"fmt"
"log"
"net"
"net/http"
"strings"
)
func ServeCaddy(w http.ResponseWriter, r *http.Request) {
query := r.URL.Query().Get("domain")
if query == "" {
http.Error(w, "domain parameter required", http.StatusBadRequest)
return
}
// Save the backend some effort from queries that are essentially guaranteed to fail.
// While TLS certificates may be provisionsed for IP addresses under special circumstances[^1],
// this isn't really what git-pages is designed for, and object store accesses can cost money.
// [^1]: https://letsencrypt.org/2025/07/01/issuing-our-first-ip-address-certificate
if ip := net.ParseIP(query); ip != nil {
log.Println("caddy:", query, 404, "(bare IP)")
w.WriteHeader(http.StatusNotFound)
return
}
found, err := backend.CheckDomain(r.Context(), strings.ToLower(query))
if found {
log.Println("caddy:", query, 200)
w.WriteHeader(http.StatusOK)
} else if err == nil {
log.Println("caddy:", query, 404)
w.WriteHeader(http.StatusNotFound)
} else {
log.Println("caddy:", query, 500)
w.WriteHeader(http.StatusInternalServerError)
fmt.Fprintln(w, err)
}
}