peter 540ca244c8 revert(auth): the newest registration does not own an unverified account (E9.5 review round 2)
Round 1 fixed the address pre-emption chain by letting a later registration replace the password on
an unverified account and delete its outstanding verify tokens. Round 2 read that code and showed it
was worse than what it fixed, so it goes back out.

It closes nothing. The rule is symmetric and an attacker can simply register last — on a timer,
inside the five-per-five-minutes budget — while the owner registers once. What it does add is two
primitives an unauthenticated caller did not have: overwrite a real registrant's chosen password,
and delete the confirmation link already sitting in their inbox (the approval mail's 7-day token is
an ordinary verify token, so the blanket delete took that too). Worst of all it fired on the rows
SEC-10 left stripped — password_hash NULL, password_revoked_at set, active — installing an
attacker's password where the entire state means "there is none", and clearing the stamp that is the
only reason password-reset still accepts them. That is a straight takeover which did not exist
before, in the code written to prevent one.

The owner's recourse needed no new primitive and already worked: password-reset accepts a
pre-empted account, proves the mailbox, rewrites the hash and bumps the session epoch. What remains
is the bounded window between a confirmation click and that reset, which is SEC-16 — logged with
this attempt written down, so the next person does not reach for it again.

Two smaller round-2 findings go with it. `upsert_pending_invite`'s new exact-spelling tie-break ran
before any status preference, so it could deterministically pick a DENIED sibling over a pending one
and reopen it — the very outcome its comment claimed to prevent; the status preference now comes
first. And `send_invitation` activated the account before the send it might have to report as
failed, so a request the UI called a failure had quietly let someone in; activation now follows a
mail that actually left. The verify token minted to render that mail still commits either way — it
is single-use, expires on its own and was mailed nowhere, and the note says so rather than leaving
the next reader to wonder whether it was missed.
2026-09-04 22:54:52 +02:00
2026-09-03 21:59:09 +02:00

Siftlode

Your YouTube subscriptions, the way a feed should work. Siftlode pulls every upload from the channels you follow into one clean, filterable feed — no algorithm deciding what you see, and no Shorts or livestream noise unless you want it. Self-hosted, multi-user, and private: your data stays on your own server.

Siftlode feed

Everything expensive (channels, videos, metadata) is fetched from YouTube once and stored locally, so filtering, searching and sorting are instant and don't burn API quota. Click a video to watch it in an in-app player that resumes where you left off — or open it on youtube.com so your own ad blocker and SponsorBlock keep working.

Features

  • A readable subscription feed — sort and filter by channel, tag, language, topic, length, upload date or watch state; hide channels without unsubscribing; save filter setups as named views.
  • Search all of YouTube from the feed — live results you can play, save or add to playlists like any other video; they stay temporary and out of your catalog unless you keep one.
  • Channel pages & a channel manager — per-channel stats and uploads, priorities, and your own tags to slice the feed by.
  • Playlists with two-way YouTube sync — build them locally, keep them in sync in both directions.
  • In-app player with resume, plus keyboard/scroll controls.
  • Download Center — save videos to the server with yt-dlp in a Plex-friendly layout (format presets, per-user storage quota), trim / crop / split & join them in a built-in editor, then save to your device, share with another user, or hand out a public watch link.
  • Plex library (optional) — point Siftlode at your own Plex server to browse and play its movies and shows alongside your feed, with watch state kept in sync.
  • Multi-user with per-user private state, a shared catalog, and a fair daily API-quota guard.
  • Self-hosted & private, with a first-run web setup wizard and the interface in English and Hungarian.

Quick start (self-hosting)

You don't need to build anything — Siftlode runs from a prebuilt public image, and all configuration (your admin account, Google sign-in, email) happens in a first-run web wizard. You need Docker with the Compose plugin.

1. Get the files and run the installer:

git clone https://git.b1fr0st.eu/peter/siftlode.git
cd siftlode
./install.sh          # Windows (PowerShell):  ./install.ps1

The installer generates a private .env (secrets), pulls the image, starts the app + database, and prints a one-time setup URL like http://localhost:8080/setup?token=….

2. Finish in your browser. Open that URL and follow the wizard:

  1. Admin account — the email + password you'll sign in with.
  2. Google sign-in (optional) — paste a Google OAuth client to enable "Sign in with Google" and pulling your YouTube subscriptions. Skip it to use email + password only.
  3. Email / SMTP (optional) — for verification/notification emails. Skip it and you (the admin) simply approve new accounts yourself.

Then sign in with your admin account. That's it. See docs/self-hosting.md for the full walkthrough.

Just trying it out? Press Enter at the installer's URL prompt to run on http://localhost:8080.

Build from source (alternative)

Prefer to build the image yourself instead of pulling it:

git clone https://git.b1fr0st.eu/peter/siftlode.git
cd siftlode
cp .env.example .env
# generate the two secrets and paste them into .env:
python -c "import secrets;print('SECRET_KEY='+secrets.token_urlsafe(48))"
python -c "import base64,os;print('TOKEN_ENCRYPTION_KEY='+base64.urlsafe_b64encode(os.urandom(32)).decode())"
docker compose up --build -d      # builds from the included Dockerfile

Open http://localhost:8080 and finish in the setup wizard as above. (Set a POSTGRES_PASSWORD in .env too.)

HTTPS / public access

Port 8080 over plain HTTP is fine for a LAN or a quick trial. For public access put a reverse proxy (Caddy, Nginx, Traefik…) in front to terminate TLS, and set the public URL (the installer prompt, or OAUTH_REDIRECT_URL in .env) to your https://… address — this also marks the session cookie secure. Add that same …/auth/callback URL to your Google OAuth client's authorized redirect URIs. Behind a proxy, also set TRUSTED_PROXY_IPS so the rate limiters see the real client IP and can't be bypassed via a forged X-Forwarded-For — see docs/self-hosting.md.

Updating & backups

docker compose -f docker-compose.selfhost.yml pull   # or: docker compose pull
docker compose -f docker-compose.selfhost.yml up -d

Database migrations run automatically on startup. Your data (accounts, subscriptions, playlists, the video catalog) lives in a Postgres volume — back it up with scripts/backup.sh (or backup.ps1 on Windows) and restore with scripts/restore.sh.

How it works

  • Shared catalog, private state. Channels and videos are stored once and shared; each user's subscriptions, tags, playlists and watch/save/hide state are private.
  • Cheap by design. Public reads are cached locally; a shared daily quota budget and a background scheduler keep unattended syncing within YouTube's free API limits. An optional API key lets backfill run without depending on a user's OAuth token.

Tech

FastAPI + PostgreSQL (SQLAlchemy, Alembic) backend; React + Vite + Tailwind + TanStack Query frontend; packaged as a single Docker image with Docker Compose.

Note

This project is developed with AI assistance.

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