The OIDC provider was falling back to config.public.appUrl for its
issuer, which could resolve to an http:// URL. This caused the logout
form action to use http://, violating the CSP form-action directive.
Hardcode the issuer fallback to https://ghostguild.org.
Add oidc-provider with MongoDB adapter so ghostguild.org can act as
the identity provider for the self-hosted Outline wiki. Members
authenticate via the existing magic-link flow, with automatic SSO
when an active session exists. Includes interaction routes, well-known
discovery endpoint, and login page.
Auth: Add requireAuth/requireAdmin guards with JWT cookie verification,
member status checks (suspended/cancelled = 403), and admin role
enforcement. Apply to all admin, upload, and payment endpoints. Add
role field to Member model.
CSRF: Double-submit cookie middleware with client plugin. Exempt
webhook and magic-link verify routes.
Headers: X-Content-Type-Options, X-Frame-Options, X-XSS-Protection,
Referrer-Policy, Permissions-Policy on all responses. HSTS and CSP
(Helcim/Cloudinary/Plausible sources) in production only.
Rate limiting: Auth 5/5min, payment 10/min, upload 10/min, general
100/min via rate-limiter-flexible, keyed by client IP.
XSS: DOMPurify sanitization on marked() output with tag/attr
allowlists. escapeHtml() utility for email template interpolation.
Anti-enumeration: Login returns identical response for existing and
non-existing emails. Remove 404 handling from login UI components.
Mass assignment: Remove helcimCustomerId from profile allowedFields.
Session: 7-day token expiry, refresh endpoint, httpOnly+secure cookies.
Environment: Validate required secrets on startup via server plugin.
Remove JWT_SECRET hardcoded fallback.
