Caddyfile

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# hiai-docs Caddyfile
# Service targets use canonical container ports; host port overrides do not
# apply inside the Compose network.

:80 {
	# For local development / Docker internal
	reverse_proxy web:50701

	encode gzip
	log

	header {
		# Prod-safe CSP — the :80 catch-all must not hardcode dev origins.
		# Developers: override in a local Caddyfile if you need dev-specific
		# connect-src (e.g. http://localhost:50700 ws://localhost:50700).
		Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; worker-src 'self' blob:; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; connect-src 'self' https:// wss://; font-src 'self' data:; frame-ancestors 'none'; form-action 'self'"
		# HSTS — harmless on plain HTTP, enforced once TLS is provisioned
		Strict-Transport-Security "max-age=31536000; includeSubDomains"
		X-Content-Type-Options "nosniff"
		X-Frame-Options "DENY"
		Referrer-Policy "strict-origin-when-cross-origin"
	}

	# PWA asset cache-control (service worker must always be re-fetched)
	@sw path /sw.js
	header @sw Cache-Control "no-cache, no-store, must-revalidate"
	@manifest path /manifest.webmanifest
	header @manifest Cache-Control "public, max-age=3600"
	@immutable path /_app/immutable/*
	header @immutable Cache-Control "public, max-age=31536000, immutable"
	@images path /pwa-*.png /apple-touch-icon.png /maskable-icon.png
	header @images Cache-Control "public, max-age=86400"
}

# Public object-storage endpoint used by presigned import/download URLs. Keep
# it on a separate host so S3 object paths never overlap application routes.
storage.docs.{$DOMAIN:localhost} {
	reverse_proxy seaweedfs:8333
}

docs.{$DOMAIN:localhost} {
	# For production — Caddy auto-provisions TLS
	reverse_proxy web:50701

	encode gzip
	log

	rate_limit {
		zone dynamic {
			key {remote_host}
			events 100
			window 1m
		}
	}

	header {
		# Restrictive CSP — SvelteKit requires 'unsafe-inline' in style-src
		# because it injects styles at runtime and cannot use nonces.
		# This is an accepted trade-off for SvelteKit SPAs.
		Content-Security-Policy "default-src 'self'; script-src 'self' 'unsafe-inline'; worker-src 'self' blob:; style-src 'self' 'unsafe-inline'; img-src 'self' data: blob: https:; connect-src 'self' wss:// https://; font-src 'self' data:; frame-ancestors 'none'; form-action 'self'"
		# HSTS — 1 year, include subdomains, preload-ready
		Strict-Transport-Security "max-age=31536000; includeSubDomains"
		X-Content-Type-Options "nosniff"
		X-Frame-Options "DENY"
		Referrer-Policy "strict-origin-when-cross-origin"
	}

	# PWA asset cache-control (service worker must always be re-fetched)
	@sw path /sw.js
	header @sw Cache-Control "no-cache, no-store, must-revalidate"
	@manifest path /manifest.webmanifest
	header @manifest Cache-Control "public, max-age=3600"
	@immutable path /_app/immutable/*
	header @immutable Cache-Control "public, max-age=31536000, immutable"
	@images path /pwa-*.png /apple-touch-icon.png /maskable-icon.png
	header @images Cache-Control "public, max-age=86400"
}