feat: add /last for checking last uploaded file

abyss.go

@@ -56,6 +56,7 @@ func main() {
 		"/tree/",
 		app.basicAuth(app.treeHandler),
 	)
+	mux.HandleFunc("/last", app.lastHandler)
 
 	srv := &http.Server{
 		Addr:         app.port,

handlers.go

@@ -20,6 +20,7 @@ type Application struct {
 	key              string
 	filesDir         string
 	port             string
+	lastUploadedFile string
 }
 
 func (app *Application) treeHandler(w http.ResponseWriter, r *http.Request) {
@@ -47,6 +48,14 @@ func (app *Application) indexHandler(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func (app *Application) lastHandler(w http.ResponseWriter, r *http.Request) {
+	if app.lastUploadedFile == "" {
+		http.Error(w, "No new files uploaded yet", http.StatusNotFound)
+		return
+	}
+	http.ServeFile(w, r, app.lastUploadedFile)
+}
+
 func (app *Application) uploadHandler(w http.ResponseWriter, r *http.Request) {
 	if r.URL.Path != "/" {
 		http.Error(w, "Method not allowed", http.StatusUnauthorized)
@@ -87,6 +96,8 @@ func (app *Application) uploadHandler(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, "Error copying the file", http.StatusInternalServerError)
 	}
 
+	app.lastUploadedFile = filepath
+
 	if app.url == "" {
 		fmt.Fprintf(w, "http://localhost%s/%s\n", app.port, filename)
 	} else {