Can create a directory to contain user data

src/utils/UserDataUtils.ts

@@ -1,5 +1,6 @@
 import { conf } from "../helpers/ConfigHelper";
 import { join } from "path";
+import { existsSync, mkdirSync, writeFileSync } from "fs";
 
 /**
  * User data utilities
@@ -19,4 +20,36 @@ export function pathUserData(uri: string = "", sysPath: boolean = false) : strin
 		return join(conf().storageURL, uri).replace(":/", "://");
 	else
 		return join(conf().storagePath, uri);
+}
+
+/**
+ * Prepare file creation
+ * 
+ * @param userID Target user ID
+ * @param folderName The file directory (based on user_data folder)
+ */
+export function prepareFileCreation(userID: number, folderName: string) : string {
+
+	// Determine subfolder name
+	let subfolder : string;
+	if(userID != 0)
+		subfolder = join(folderName, userID.toString());
+	else
+		subfolder = folderName;
+
+	const subfolderPath = pathUserData(subfolder, true);
+
+	// Check if the path exists
+	if(!existsSync(subfolderPath)) {
+		
+		// Create the directory
+		mkdirSync(subfolderPath, {
+			recursive: true
+		});
+
+		// Block directory listing
+		writeFileSync(join(subfolderPath, "index.html"), "");
+	}
+
+	return subfolder;
 }