From a569cb43f26efea5a5f4c258c90d9d6e3b8189fe Mon Sep 17 00:00:00 2001
From: GnomeZworc <nicolas.boufidjeline@g3e.fr>
Date: Wed, 3 Dec 2025 23:54:12 +0100
Subject: [PATCH] start: init metadata serveur

Signed-off-by: GnomeZworc <nicolas.boufidjeline@g3e.fr>
---
 cmd/metadata/main.go        |  5 +++
 go.mod                      |  2 +-
 internal/metadata/server.go | 75 +++++++++++++++++++++++++++++++++++++
 internal/metadata/struct.go |  8 ++++
 4 files changed, 89 insertions(+), 1 deletion(-)
 create mode 100644 cmd/metadata/main.go
 create mode 100644 internal/metadata/server.go
 create mode 100644 internal/metadata/struct.go

diff --git a/cmd/metadata/main.go b/cmd/metadata/main.go
new file mode 100644
index 0000000..e97962b
--- /dev/null
+++ b/cmd/metadata/main.go
@@ -0,0 +1,5 @@
+package main
+
+func main() {
+	metadata.startServer()
+}
diff --git a/go.mod b/go.mod
index 8978629..3721544 100644
--- a/go.mod
+++ b/go.mod
@@ -1,3 +1,3 @@
-module git.g3e.fr/syonad
+module git.g3e.fr/syonad/two
 
 go 1.23.8
diff --git a/internal/metadata/server.go b/internal/metadata/server.go
new file mode 100644
index 0000000..d7fc2dd
--- /dev/null
+++ b/internal/metadata/server.go
@@ -0,0 +1,75 @@
+package metadata
+
+import (
+	"encoding/json"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"net"
+	"net/http"
+	"time"
+)
+
+var data NoCloudData
+
+var (
+	iface = flag.String("interface", "0.0.0.0", "Interface IP à écouter")
+	port  = flag.Int("port", 8080, "Port à utiliser")
+	file  = flag.String("file", "", "Fichier JSON contenant les données NoCloud")
+)
+
+func getIP(r *http.Request) string {
+	ip, _, err := net.SplitHostPort(r.RemoteAddr)
+	if err != nil {
+		return r.RemoteAddr
+	}
+	return ip
+}
+
+func rootHandler(w http.ResponseWriter, r *http.Request) {
+	ip := getIP(r)
+	path := r.URL.Path
+	timestamp := time.Now().Format(time.RFC3339)
+	userAgent := r.Header.Get("User-Agent")
+
+	log.Printf("[%s] Requête IP %s vers %s | User-Agent: %s", timestamp, ip, path, userAgent)
+
+	w.Header().Set("Content-Type", "text/yaml")
+
+	switch path {
+	case "/user-data":
+		fmt.Fprint(w, data.UserData)
+	case "/meta-data":
+		fmt.Fprint(w, data.MetaData)
+	case "/network-config":
+		fmt.Fprint(w, data.NetworkConfig)
+	case "/vendor-data":
+		fmt.Fprint(w, data.VendorData)
+	default:
+		http.NotFound(w, r)
+	}
+}
+
+func startServer() {
+	flag.Parse()
+
+	if *file == "" {
+		log.Fatal("Vous devez spécifier un fichier via --file")
+	}
+
+	raw, err := ioutil.ReadFile(*file)
+	if err != nil {
+		log.Fatalf("Erreur de lecture du fichier: %v", err)
+	}
+
+	if err := json.Unmarshal(raw, &data); err != nil {
+		log.Fatalf("Erreur de parsing JSON: %v", err)
+	}
+
+	http.HandleFunc("/", rootHandler)
+
+	address := fmt.Sprintf("%s:%d", *iface, *port)
+	log.Printf("Serveur NoCloud démarré sur http://%s/", address)
+	log.Fatal(http.ListenAndServe(address, nil))
+}
diff --git a/internal/metadata/struct.go b/internal/metadata/struct.go
new file mode 100644
index 0000000..f1edf18
--- /dev/null
+++ b/internal/metadata/struct.go
@@ -0,0 +1,8 @@
+package metadata
+
+type NoCloudData struct {
+	MetaData      string `json:"meta-data"`
+	UserData      string `json:"user-data"`
+	NetworkConfig string `json:"network-config"`
+	VendorData    string `json:"vendor-data"`
+}