Immich Public Proxy: Safely share your photos and albums without exposing your Immich instance

alan@feddit.org to Selfhosted@lemmy.world – 373 points –

Immich is an amazing piece of software, but because it holds such personal data I have only ever felt comfortable accessing it via VPN or mTLS. This meant that I could never share any photos, which had been really bugging me.

So I built a self-hosted app, Immich Public Proxy, which allows you to share individual files or full galleries to the public without ever exposing your Immich instance. This uses Immich's existing sharing functionality, so other than the initial configuration everything else is handled within Immich.

Why not just expose Immich publicly with Traefik / Caddy / etc?

To share from Immich, you need to allow public access to your /api/ path, which opens you up to potential vulnerabilities. It's up to you whether you are comfortable with that in your threat model.

This proxy provides a barrier of security between the public and Immich. It doesn’t forward traffic to Immich, it validates incoming requests and responds only to valid requests without needing privileged access to Immich.

Demo

You can see a live demo here, which is serving a gallery straight out of my own Immich instance.

Features

  • Supports sharing photos and videos.
  • Supports password-protected shares.
  • Creating and managing shares happens through Immich as normal, so there's no change to your workflow.

Install

Setup takes about 30 seconds:

  1. Take a copy of the docker-compose.yml file and change the address for your Immich instance.

  2. Start the container: docker-compose up -d

  3. Set the "External domain" in your Immich Server Settings to be whatever domain you use to publicly serve Immich Public Proxy. Now whenever you share an image or gallery through Immich, it will automatically create the correct public path for you.

For more detail on the steps, see the docs on Github.

58

You are viewing a single comment
View all comments

You seem to understand neither security nor privacy.

I get to give you access to all my photos so that you can just proxy calls to my server?

Just share your own damn server people, this "I'm behind 7 proxies" bs is getting tiring.

I get to give you access to all my photos so that you can just proxy calls to my server?

This is a self-hosted app... The only person who has access to your photos is you - that's the entire point of using this. It lets you share photos/videos/albums from Immich without giving anyone access to any part of your Immich server, thus significantly increasing your privacy and security.

It doesn't forward any traffic to Immich, it creates essentially a WAF between the public and Immich. It validates all incoming requests and answers only valid requests, without needing privileged access to Immich.

Couldnt this in theory also be handled by using cloudflares WAF and disallowing every entry to protected end-points?

You'd still need to allow access to the /api/ path, and even public endpoints could potentially expose you to a vulnerability. It's entirely up to your threat model.

Knowing what happened in 2014 with iCloud, I'm not prepared to take that risk. Especially as Immich is under heavy development and things can often change and move around. At least this way I know that it will either safely fetch the data or simply fail.

For anyone else reading this completely unjustified and ill-intentioned criticism of the OP's work: atzanteol obviously has no clue about security and therefore cannot comprehend the value of this library.

Do you often recommend people running single-developer maintained software that has existed for about a fortnight for "security purposes"?

25 more...