Initial commit

src/shared/utils/machineId.js

@@ -0,0 +1,58 @@
+import { machineIdSync } from 'node-machine-id';
+
+/**
+ * Get consistent machine ID using node-machine-id with salt
+ * This ensures the same physical machine gets the same ID across runs
+ * 
+ * @param {string} salt - Optional salt to use (defaults to environment variable)
+ * @returns {Promise<string>} Machine ID (16-character base32)
+ */
+export async function getConsistentMachineId(salt = null) {
+  // For server-side, use node-machine-id with salt
+  const saltValue = salt || process.env.MACHINE_ID_SALT || 'endpoint-proxy-salt';
+  try {
+    const rawMachineId = machineIdSync();
+    // Create consistent ID using salt
+    const crypto = await import('crypto');
+    const hashedMachineId = crypto.createHash('sha256').update(rawMachineId + saltValue).digest('hex');
+    // Return only first 16 characters for brevity
+    return hashedMachineId.substring(0, 16);
+  } catch (error) {
+    console.log('Error getting machine ID:', error);
+    // Fallback to random ID if node-machine-id fails
+    return crypto.randomUUID ? crypto.randomUUID() : 
+      'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+        const r = Math.random() * 16 | 0;
+        const v = c == 'x' ? r : (r & 0x3 | 0x8);
+        return v.toString(16);
+      });
+  }
+}
+
+/**
+ * Get raw machine ID without hashing (for debugging purposes)
+ * @returns {Promise<string>} Raw machine ID
+ */
+export async function getRawMachineId() {
+  // For server-side, use raw node-machine-id
+  try {
+    return machineIdSync();
+  } catch (error) {
+    console.log('Error getting raw machine ID:', error);
+    // Fallback to random ID if node-machine-id fails
+    return crypto.randomUUID ? crypto.randomUUID() : 
+      'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(c) {
+        const r = Math.random() * 16 | 0;
+        const v = c == 'x' ? r : (r & 0x3 | 0x8);
+        return v.toString(16);
+      });
+  }
+}
+
+/**
+ * Check if we're running in browser or server environment
+ * @returns {boolean} True if in browser, false if in server
+ */
+export function isBrowser() {
+  return typeof window !== 'undefined';
+}