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package handlers
import (
"fmt"
"net/http"
"net/http/httputil"
"net/url"
"strings"
"time"
"github.com/LMBishop/gunnel/pkg/store"
)
func ReverseProxy(storeService store.Service) func(http.ResponseWriter, *http.Request) {
return func(w http.ResponseWriter, r *http.Request) {
hostParts := strings.Split(r.Host, ".")
slug := hostParts[0]
rule := storeService.GetRuleBySlug(slug)
if rule == nil {
http.Error(w, fmt.Sprintf("Unknown peer '%s'", slug), http.StatusNotFound)
return
}
targetURL, err := url.Parse("http://" + rule.Peer.IPAddr.String() + ":" + rule.Port)
rule.LastUsed = time.Now()
if err != nil {
http.Error(w, "Invalid target URL", http.StatusInternalServerError)
return
}
proxy := httputil.NewSingleHostReverseProxy(targetURL)
proxy.ServeHTTP(w, r)
}
}
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