Harden auth cookies and fix native schema for event creation

backend/src/utils/tokenUtils.js

@@ -0,0 +1,122 @@
+const ADMIN_COOKIE_NAME = 'admin_token';
+const GALLERY_COOKIE_NAME = 'gallery_token';
+const GALLERY_COOKIE_PREFIX = 'gallery_token_';
+
+const DEFAULT_MAX_AGE_MS = 24 * 60 * 60 * 1000; // 24 hours
+
+const secureCookie = process.env.COOKIE_SECURE === 'true' || process.env.NODE_ENV === 'production';
+const sameSiteDefault = process.env.COOKIE_SAMESITE || 'Lax';
+const cookieDomain = process.env.COOKIE_DOMAIN;
+
+function buildCookieBaseOptions() {
+  const options = {
+    httpOnly: true,
+    secure: secureCookie,
+    sameSite: sameSiteDefault,
+    path: '/',
+  };
+
+  if (cookieDomain) {
+    options.domain = cookieDomain;
+  }
+
+  return options;
+}
+
+function buildCookieOptionsWithExpiry(maxAgeMs = DEFAULT_MAX_AGE_MS) {
+  return {
+    ...buildCookieBaseOptions(),
+    maxAge: maxAgeMs,
+  };
+}
+
+function sanitizeSlugForCookie(slug = '') {
+  return String(slug).replace(/[^A-Za-z0-9_-]/g, '_');
+}
+
+function setAdminAuthCookie(res, token) {
+  if (!token) return;
+  res.cookie(ADMIN_COOKIE_NAME, token, buildCookieOptionsWithExpiry());
+}
+
+function clearAdminAuthCookie(res) {
+  res.clearCookie(ADMIN_COOKIE_NAME, buildCookieBaseOptions());
+}
+
+function setGalleryAuthCookies(res, token, slug) {
+  if (!token) return;
+  const options = buildCookieOptionsWithExpiry();
+  res.cookie(GALLERY_COOKIE_NAME, token, options);
+  if (slug) {
+    const cookieName = `${GALLERY_COOKIE_PREFIX}${sanitizeSlugForCookie(slug)}`;
+    res.cookie(cookieName, token, options);
+  }
+}
+
+function clearGalleryAuthCookies(res, slug) {
+  const baseOptions = buildCookieBaseOptions();
+  res.clearCookie(GALLERY_COOKIE_NAME, baseOptions);
+
+  const cookies = res.req?.cookies || {};
+
+  if (slug) {
+    const cookieName = `${GALLERY_COOKIE_PREFIX}${sanitizeSlugForCookie(slug)}`;
+    res.clearCookie(cookieName, baseOptions);
+  } else {
+    Object.keys(cookies).forEach((name) => {
+      if (name.startsWith(GALLERY_COOKIE_PREFIX)) {
+        res.clearCookie(name, baseOptions);
+      }
+    });
+  }
+}
+
+function getAdminTokenFromRequest(req) {
+  const header = req.headers?.authorization;
+  if (header && header.startsWith('Bearer ')) {
+    return header.substring(7);
+  }
+  return req.cookies?.[ADMIN_COOKIE_NAME] || null;
+}
+
+function getGalleryTokenFromRequest(req, slug) {
+  const header = req.headers?.authorization;
+  if (header && header.startsWith('Bearer ')) {
+    return header.substring(7);
+  }
+
+  if (!req.cookies) {
+    return null;
+  }
+
+  if (slug) {
+    const cookieName = `${GALLERY_COOKIE_PREFIX}${sanitizeSlugForCookie(slug)}`;
+    if (req.cookies[cookieName]) {
+      return req.cookies[cookieName];
+    }
+  }
+
+  if (req.cookies[GALLERY_COOKIE_NAME]) {
+    return req.cookies[GALLERY_COOKIE_NAME];
+  }
+
+  const prefixed = Object.keys(req.cookies).find((name) => name.startsWith(GALLERY_COOKIE_PREFIX));
+  if (prefixed) {
+    return req.cookies[prefixed];
+  }
+
+  return null;
+}
+
+module.exports = {
+  ADMIN_COOKIE_NAME,
+  GALLERY_COOKIE_NAME,
+  GALLERY_COOKIE_PREFIX,
+  sanitizeSlugForCookie,
+  setAdminAuthCookie,
+  clearAdminAuthCookie,
+  setGalleryAuthCookies,
+  clearGalleryAuthCookies,
+  getAdminTokenFromRequest,
+  getGalleryTokenFromRequest,
+};