verifyAdminPassword compared the raw strings, so timingSafeEqual could
only run once the lengths already matched. The early return on a length
mismatch is observable: an attacker who can time login attempts learns
how long ADMIN_PASSWORD is, which is exactly the information that makes
a brute-force search tractable. The dummy comparison that guarded the
mismatch path did not help — it ran on Buffer.alloc(attempt.length),
which is attacker-sized and leaves the branch timing intact anyway.
HMAC both sides to a fixed 32 bytes first, then compare. Every attempt
now takes the same path regardless of length. Keyed with AUTH_SECRET
rather than a bare SHA-256 so the intermediate values are useless
without the secret, matching how lib/auth.ts already compares subpage
passwords.
MAX_PASSWORD_LENGTH caps an attempt at 1024 characters, rejected in the
route before the body reaches the hashing path and again in the library
so no caller can bypass it. 1024 is far above any real passphrase — a
cap a user could actually hit would be a lockout, not a fix.
Supersedes #390 and #388, which fixed the same comparison with an
unkeyed digest. The .jules/sentinel.md note the original branch carried
is left out: .jules/ is gitignored since cf2e8e6.
Adds 3 tests: a wrong password of exactly the right length, an
oversized attempt, and that a long configured password still logs in.
Verified: 210 unit tests passing (207 before), vitest exit 0, tsc 0
errors, production build exit 0, prettier clean.
Co-authored-by: ralksta <ralksta@users.noreply.github.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
Immich Folio
A self-hosted photography portfolio powered by Immich. Turns your Immich albums into a beautiful, public-facing gallery — without ever exposing your Immich server to the internet.
Immich Folio acts as a secure reverse proxy between your visitors and your private Immich instance. Your Immich server stays on your local network, completely invisible to the outside world.
Features
Gallery & Layout
- Configurable hero layouts — split, fullbleed, minimal, stacked (image + thumbnail strip), typographic (text-only), or mosaic (multi-image grid)
- Hero image carousel — single image or crossfade carousel of multiple Immich assets
- Masonry photo grid — responsive layout with natural aspect ratios and configurable columns, gap, and aspect ratio
- Uniform grid mode — switch to a fixed-aspect uniform grid per-subpage or globally
- Showcase / filmstrip / editorial-flow layouts — featured hero + grid, horizontal scroll strips, or alternating full-width and paired images
- Per-subpage grid overrides — each subpage can define its own columns, gap, aspect ratio, and layout mode
- Fullscreen lightbox — keyboard and swipe navigation, EXIF panel, adjacent image preloading
- EXIF metadata on hover — camera body, lens, focal length, aperture, shutter speed, ISO shown directly on the grid
- ThumbHash placeholders — instant blurred previews while full images load
Content & Organization
- Subpage grouping — organize albums into named collections (e.g.
/japan/tokyo-2023) - Auto-generated slugs — URL slugs derived from album names automatically
- YAML gallery config — all gallery structure defined in a single
content/gallery.yamlfile - Markdown about page —
content/about.mdwith frontmatter for portrait, name, location, and gear list - Dynamic OG images — auto-generated social preview images per album
Admin Panel
- Visual page builder — drag & drop interface to manage hero images, standalone albums, subpages, and sections
- Album picker — browse all shared Immich albums with search, see photo counts, and add them with one click
- Settings editor — configure theme, grid layout, footer, legal/impressum, and SEO from a visual UI
- Live YAML sync — changes are written directly to
gallery.yamlandsettings.yamlwith automatic backups - Password protected — secured with its own admin password, separate from album passwords
Security & Infrastructure
| Concern | Protection |
|---|---|
| Server exposure | Immich URL never leaves your network — all requests proxy server-side |
| API key | Stored only in .env.local, never in client code |
| Asset IDs | Immich UUIDs encrypted (AES-256) into opaque tokens |
| Album scope | Only albums in gallery.yaml are accessible |
| Password protection | Per-subpage password support |
| Rate limiting | Per-IP sliding-window rate limiter (configurable RPM) |
- Health check endpoint at
GET /api/health - In-memory caching with configurable TTL
- Standalone Docker image — multi-stage, non-root, ~150 MB
Requirements
- Immich 3.0 or newer. Immich 3.0 changed how album assets are retrieved; earlier versions are not supported as of v0.9.0. On an older server, albums render with the correct title but no photos, and the map stays empty — the app logs a warning naming this as the likely cause.
- Node.js 20+ (or just use the Docker image)
Quick Start
# Clone and install
git clone https://github.com/ralksta/immich-folio.git
cd immich-folio
npm install
# Configure
cp .env.local.example .env.local
# Edit .env.local with your Immich server URL and API key
cp content/gallery.yaml.example content/gallery.yaml
# Edit gallery.yaml with your album UUIDs
# Run
npm run dev
Configuration
Environment Variables (.env.local)
# Required
IMMICH_API_URL=http://your-immich-server:2283
IMMICH_API_KEY=your-api-key
# Optional
SITE_TITLE=My Photography # default: "Gallery"
SITE_SUBTITLE=A visual journal # default: empty
CACHE_TTL=300 # seconds, default: 300
IMMICH_TIMEOUT_MS=15000 # Immich response wait, default: 15000
IMAGE_CACHE_VERSION=1 # bump to bust browser image caches, default: off
RATE_LIMIT_RPM=1500 # requests/min/IP, default: 1500
AUTH_SECRET=long-random-string # required in production
TRUSTED_PROXY_HOPS=1 # reverse proxies in front, default: 0
ADMIN_PASSWORD=your-secure-password # enables /admin panel
Behind a reverse proxy, set
TRUSTED_PROXY_HOPSto the number of proxies in front of the app (nginx/Traefik/Caddy = 1; Cloudflare in front of nginx = 2). Without it the client IP is read from a header the client itself can set, which defeats the brute-force limits on the password endpoints. See Trusted Proxies.
Immich API Key Permissions
Create a dedicated API key in Immich under Account Settings → API Keys. Immich Folio only needs read access — it never modifies your library.
| Permission | Required | Used for |
|---|---|---|
album.read |
✅ Yes | List and fetch album metadata & photo lists |
asset.read |
✅ Yes | Fetch asset metadata, EXIF data, thumbnails, previews, and originals |
asset.view |
✅ Yes | Stream image/video files (thumbnail, preview, video playback) |
No write permissions needed.
album.create,asset.upload,asset.delete, etc. can all be left off.
Tip (Admin Panel): The Admin Panel also uses
POST /search/metadatato browse your full library for the hero image picker. This is covered byasset.read— no additional permission required.
Gallery Config
All gallery structure — hero images, albums, subpages, grid layout, footer — is defined in content/gallery.yaml.
Theming
Six built-in presets with distinct visual identities — or mix and match with fine-grained control over colors, fonts, corners, photo frames, hero layout, and grid style.
theme: studio # or: minimal, editorial, classic, noir, monograph
→ View all Themes & Configuration Guide
Docker
Docker Compose (recommended)
services:
lightbox:
build: .
container_name: immich-folio
restart: unless-stopped
ports:
- '7211:7211'
env_file:
- .env.local
volumes:
- ./content:/app/content:ro
Run with:
docker compose up -d
The gallery will be available at http://localhost:7211.
Advanced Docker (Standalone, Health Check, Proxy)
Standalone Docker
# Build
docker build -t immich-folio .
# Run
docker run -d \
--name immich-folio \
--restart unless-stopped \
-p 7211:7211 \
--env-file .env.local \
-v ./content:/app/content:ro \
immich-folio
Note: The
content/volume mount lets you updategallery.yamlandabout.mdwithout rebuilding the image.
Health Check
The container includes a built-in health check at /api/health:
curl http://localhost:7211/api/health
Reverse Proxy
Put Immich Folio behind nginx / Caddy / Traefik with TLS. Example Caddy config:
photos.example.com {
reverse_proxy localhost:7211
}
Admin Panel
A built-in visual editor at /admin lets you manage your gallery without editing YAML files manually.
Enable it by setting ADMIN_PASSWORD in your environment:
ADMIN_PASSWORD=your-secure-admin-password
Then navigate to http://your-site/admin and log in.
Tech Stack
- Next.js 16 (App Router, standalone output)
- React 19
- TypeScript
- Vanilla CSS (no framework)
License
MIT License — free to use and modify for the Immich community.

