Initial commit

src/shared/utils/api.js

@@ -0,0 +1,92 @@
+/**
+ * API utility functions for making HTTP requests
+ */
+
+const DEFAULT_HEADERS = {
+  "Content-Type": "application/json",
+};
+
+/**
+ * Make a GET request
+ * @param {string} url - API endpoint
+ * @param {object} options - Fetch options
+ * @returns {Promise<object>}
+ */
+export async function get(url, options = {}) {
+  const response = await fetch(url, {
+    method: "GET",
+    headers: { ...DEFAULT_HEADERS, ...options.headers },
+    ...options,
+  });
+  return handleResponse(response);
+}
+
+/**
+ * Make a POST request
+ * @param {string} url - API endpoint
+ * @param {object} data - Request body
+ * @param {object} options - Fetch options
+ * @returns {Promise<object>}
+ */
+export async function post(url, data, options = {}) {
+  const response = await fetch(url, {
+    method: "POST",
+    headers: { ...DEFAULT_HEADERS, ...options.headers },
+    body: JSON.stringify(data),
+    ...options,
+  });
+  return handleResponse(response);
+}
+
+/**
+ * Make a PUT request
+ * @param {string} url - API endpoint
+ * @param {object} data - Request body
+ * @param {object} options - Fetch options
+ * @returns {Promise<object>}
+ */
+export async function put(url, data, options = {}) {
+  const response = await fetch(url, {
+    method: "PUT",
+    headers: { ...DEFAULT_HEADERS, ...options.headers },
+    body: JSON.stringify(data),
+    ...options,
+  });
+  return handleResponse(response);
+}
+
+/**
+ * Make a DELETE request
+ * @param {string} url - API endpoint
+ * @param {object} options - Fetch options
+ * @returns {Promise<object>}
+ */
+export async function del(url, options = {}) {
+  const response = await fetch(url, {
+    method: "DELETE",
+    headers: { ...DEFAULT_HEADERS, ...options.headers },
+    ...options,
+  });
+  return handleResponse(response);
+}
+
+/**
+ * Handle API response
+ * @param {Response} response - Fetch response
+ * @returns {Promise<object>}
+ */
+async function handleResponse(response) {
+  const data = await response.json();
+
+  if (!response.ok) {
+    const error = new Error(data.error || "An error occurred");
+    error.status = response.status;
+    error.data = data;
+    throw error;
+  }
+
+  return data;
+}
+
+export default { get, post, put, del };
+

src/shared/utils/apiKey.js

@@ -0,0 +1,98 @@
+import crypto from "crypto";
+
+const API_KEY_SECRET = process.env.API_KEY_SECRET || "endpoint-proxy-api-key-secret";
+
+/**
+ * Generate 6-char random keyId
+ */
+function generateKeyId() {
+  const chars = "abcdefghijklmnopqrstuvwxyz0123456789";
+  let result = "";
+  for (let i = 0; i < 6; i++) {
+    result += chars.charAt(Math.floor(Math.random() * chars.length));
+  }
+  return result;
+}
+
+/**
+ * Generate CRC (8-char HMAC)
+ */
+function generateCrc(machineId, keyId) {
+  return crypto
+    .createHmac("sha256", API_KEY_SECRET)
+    .update(machineId + keyId)
+    .digest("hex")
+    .slice(0, 8);
+}
+
+/**
+ * Generate API key with machineId embedded
+ * Format: sk-{machineId}-{keyId}-{crc8}
+ * @param {string} machineId - 16-char machine ID
+ * @returns {{ key: string, keyId: string }}
+ */
+export function generateApiKeyWithMachine(machineId) {
+  const keyId = generateKeyId();
+  const crc = generateCrc(machineId, keyId);
+  const key = `sk-${machineId}-${keyId}-${crc}`;
+  return { key, keyId };
+}
+
+/**
+ * Parse API key and extract machineId + keyId
+ * Supports both formats:
+ * - New: sk-{machineId}-{keyId}-{crc8}
+ * - Old: sk-{random8}
+ * @param {string} apiKey
+ * @returns {{ machineId: string, keyId: string, isNewFormat: boolean } | null}
+ */
+export function parseApiKey(apiKey) {
+  if (!apiKey || !apiKey.startsWith("sk-")) return null;
+
+  const parts = apiKey.split("-");
+  
+  // New format: sk-{machineId}-{keyId}-{crc8} = 4 parts
+  if (parts.length === 4) {
+    const [, machineId, keyId, crc] = parts;
+    
+    // Validate CRC
+    const expectedCrc = generateCrc(machineId, keyId);
+    if (crc !== expectedCrc) return null;
+    
+    return { machineId, keyId, isNewFormat: true };
+  }
+  
+  // Old format: sk-{random8} = 2 parts
+  if (parts.length === 2) {
+    return { machineId: null, keyId: parts[1], isNewFormat: false };
+  }
+  
+  return null;
+}
+
+/**
+ * Verify API key CRC (only for new format)
+ * @param {string} apiKey
+ * @returns {boolean}
+ */
+export function verifyApiKeyCrc(apiKey) {
+  const parsed = parseApiKey(apiKey);
+  if (!parsed) return false;
+  
+  // Old format doesn't have CRC, always valid if parsed
+  if (!parsed.isNewFormat) return true;
+  
+  // New format already verified in parseApiKey
+  return true;
+}
+
+/**
+ * Check if API key is new format (contains machineId)
+ * @param {string} apiKey
+ * @returns {boolean}
+ */
+export function isNewFormatKey(apiKey) {
+  const parsed = parseApiKey(apiKey);
+  return parsed?.isNewFormat === true;
+}
+

src/shared/utils/cloud.js

@@ -0,0 +1,40 @@
+import { getMachineId } from "@/shared/utils/machine";
+
+// Function to get cloud URL with machine ID
+export function getCloudUrl(machineId) {
+  // Get from environment or default to localhost:8787
+  const cloudUrl = process.env.NEXT_PUBLIC_CLOUD_URL || "http://localhost:8787";
+  return `${cloudUrl}/${machineId}/v1/chat/completions`;
+}
+
+// Function to call cloud with machine ID
+export async function callCloudWithMachineId(request) {
+  const machineId = await getMachineId();
+  if (!machineId) {
+    throw new Error("Could not get machine ID");
+  }
+
+  const cloudUrl = getCloudUrl(machineId);
+  
+  // Get the original request body and headers
+  const body = await request.json();
+  const headers = new Headers(request.headers);
+  
+  // Remove authorization header since cloud won't need it (uses machineId instead)
+  headers.delete("authorization");
+  
+  // Call the cloud with machine ID
+  const response = await fetch(cloudUrl, {
+    method: "POST",
+    headers: headers,
+    body: JSON.stringify(body)
+  });
+  
+  return response;
+}
+
+// Function to periodically sync provider data to cloud (now a no-op)
+export function startProviderSync(cloudUrl, intervalMs = 900000) { // Default 15 minutes
+  console.log("Frontend sync is disabled. Use backend sync instead.");
+  return null;
+}

src/shared/utils/cn.js

@@ -0,0 +1,11 @@
+// Utility function to merge class names
+// Handles conditional classes and removes duplicates
+
+export function cn(...classes) {
+  return classes
+    .filter(Boolean)
+    .join(" ")
+    .replace(/\s+/g, " ")
+    .trim();
+}
+

src/shared/utils/index.js

@@ -0,0 +1,32 @@
+// Shared Utils - Export all
+export { cn } from "./cn";
+export * as api from "./api";
+
+/**
+ * Extract error code from error message (401, 429, 503...)
+ * @param {string} lastError - Error message
+ * @returns {string|null} Error code or null
+ */
+export function getErrorCode(lastError) {
+  if (!lastError) return null;
+  const match = lastError.match(/\b([45]\d{2})\b/);
+  return match ? match[1] : "ERR";
+}
+
+/**
+ * Get relative time string (e.g. "5 min ago")
+ * @param {string} isoDate - ISO date string
+ * @returns {string} Relative time
+ */
+export function getRelativeTime(isoDate) {
+  if (!isoDate) return "";
+  const diff = Date.now() - new Date(isoDate).getTime();
+  const mins = Math.floor(diff / 60000);
+  if (mins < 1) return "just now";
+  if (mins < 60) return `${mins}m ago`;
+  const hours = Math.floor(mins / 60);
+  if (hours < 24) return `${hours}h ago`;
+  const days = Math.floor(hours / 24);
+  return `${days}d ago`;
+}
+

src/shared/utils/machine.js

@@ -0,0 +1,18 @@
+import { getConsistentMachineId } from './machineId';
+
+// Get machine ID using node-machine-id with salt
+export async function getMachineId() {
+  return await getConsistentMachineId();
+}
+
+// Keep sync functions for backward compatibility but make them no-ops
+// (Frontend sync is disabled - use backend sync instead)
+export async function syncProviderDataToCloud(cloudUrl) {
+  console.log("Frontend sync is disabled. Use backend sync instead.");
+  return Promise.resolve(true);
+}
+
+export async function getProvidersNeedingRefresh() {
+  console.log("Frontend sync is disabled. Use backend sync instead.");
+  return Promise.resolve([]);
+}

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';
+}