# cosocial cities labeler

An atproto labeler that puts a Canadian city badge on accounts that ask for one over Bluesky DMs.

1. Subscribe to `@cities.pds.cosocial.ca` (the Subscribe button on its profile).
2. Follow it.
3. DM it your city, e.g. `Halifax` or `Richmond, BC`. Send `remove` to clear it.

The labeler polls its DMs, matches the city against `data/cities.json`, and signs an account
label (e.g. `halifax-ns`), negating any previous one. Labels are stored in SQLite and served over
`com.atproto.label.subscribeLabels` and `queryLabels`.

```
src/
  dms.rs       DM polling, onboarding, replies
  cities.rs    city list and matching
  labeler.rs   set_city: negate the old label, apply the new one
  labels.rs    label signing
  server.rs    queryLabels + subscribeLabels (axum, jacquard-axum)
  db.rs        SQLite
  bin/keygen.rs
```

Built on [jacquard](https://tangled.org/nonbinary.computer/jacquard) for atproto types and XRPC.

## Local test

```sh
cp .env.example .env      # set LABELER_APP_PASSWORD
cargo run --bin keygen    # paste SIGNING_KEY_HEX into .env
cargo run                 # :4100
```

`rust-toolchain.toml` pins the Rust version; rustup installs it on first build.

The labeler account must allow DMs from everyone (Settings → Privacy and security → Chat).
DM it from a test account, then check
`curl 'localhost:4100/xrpc/com.atproto.label.queryLabels?uriPatterns=<did>'`.

Labels won't appear in the Bluesky app until the labeler is deployed publicly and its DID
document has the `#atproto_label` key and `#atproto_labeler` service.