frontend: refactor and dispatch in many routes

frontend/register.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"log"
+	"net/http"
+	"path"
+)
+
+type RegistrationHandler struct {}
+
+func (e RegistrationHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	log.Printf("Handling %s registration request from %s: %s [%s]\n", r.Method, r.RemoteAddr, r.URL.Path, r.UserAgent())
+
+	w.Header().Set("Content-Type", "application/json")
+
+	// Check request type and size
+	if r.Method != "POST" {
+		http.Error(w, "{\"errmsg\":\"Requête invalide.\"}", http.StatusBadRequest)
+		return
+	} else if r.ContentLength < 0 || r.ContentLength > 1023 {
+		http.Error(w, "{\"errmsg\":\"Requête trop longue ou de taille inconnue\"}", http.StatusRequestEntityTooLarge)
+		return
+	}
+
+	// Enqueue file for backend treatment
+	if err := saveFile(path.Join(SubmissionDir, "_registration"), "", r); err != nil {
+		log.Println("Unable to open registration file:", err)
+		http.Error(w, "{\"errmsg\":\"Internal server error. Please retry in few seconds.\"}", http.StatusInternalServerError)
+		return
+	}
+
+	http.Error(w, "{\"errmsg\":\"Demande d'enregistrement acceptée\"}", http.StatusAccepted)
+}