# sponsorblock-mirror

This is a Rust-based mirror of the [SponsorBlock](https://sponsor.ajay.app) API.

It also uses [sb-mirror](https://github.com/mchangrh/sb-mirror) for mirroring the CSV dumps via rsync.

## Instances

-   [sponsorblock.kavin.rocks](https://sponsorblock.kavin.rocks) - 🇩🇪 (main instance)
-   [sponsorblock.gleesh.net](https://sponsorblock.gleesh.net) - 🇩🇪
-   [sb.theairplan.com](https://sb.theairplan.com) - 🇺🇸

Feel free to add your instance to this list by making a pull request.

You can also configure Piped-Backend to use your mirror by changing the `SPONSORBLOCK_SERVERS` configuration value.

## Compatibility

This implementation does not implement the full SponsorBlock server API. It supports hash-based queries to `/api/skipSegments/<hash>`, with optional `categories` parameter, and queries to `/api/skipSegments` with required `videoID` and optional `categories` parameters.

The browser extension works with only the hash-based query endpoint, but other clients, such as the one in ReVanced, require the video ID endpoint, and additionally query `/api/userInfo` and `/api/isUserVip`. Right now there are stub implementations for these. ReVanced had not yet been verified as compatible.

## Building

To make a local release build, use `cargo build --release`. This will produce a binary in `target/release/sponsorblock-mirror`.

To make a Docker container, you need to do a BuildKit Docker build, not a normal Docker build. Make sure you have `buildx` available in your Docker, and run:
```bash
docker buildx build --load -t 1337kavin/sponsorblock-mirror .
```

## Using with Docker Compose

To run the server under Docker Compose, run:

```
docker compose up
```

This starts the API server, a database, and a mirroring service to download the SponsorBlock data from the `sponsorblock.kavin.rocks` mirror and keep it up to date.

The API will be available on `http://localhost:8000`. For example, you can try `http://localhost:8000/api/skipSegments/aabf` or `http://localhost:8000/api/skipSegments?videoID=eQ_8F4nzyiw`. **It will take a few minutes at least for the database to download and import,** so these will not return data on the first run.

## Troubleshooting

* If the linker complains about a missing `-lpq`, make sure you have the PostgresQL development libraries, which may be in a `libpq-dev` package or your distribution's equivalent.

* If Docker complains that `the --mount option requires BuildKit`, make sure you are building with `docker buildx build` and not `docker build`.

* If `docker compose` complains like this:
  ```
  ERROR: The Compose file './docker-compose.yml' is invalid because:
  Unsupported config option for volumes: 'postgres_data'
  Unsupported config option for services: 'sb-mirror'
  ```
  then you are using an old version of `docker compose` which does not fully support the Compose Specification and [requires a 'version' key to differentiate the file from a V1 compose file](https://docs.docker.com/compose/compose-file/#version-top-level-element). Try appending `version: "3"` to the file.
  
* On the first run of `docker compose`, even after the database files are downloaded, you may see errors like `could not open file "/mirror/sponsorTimes.csv" for reading: Permission denied`. Assuming the permissions on the `.csv` files are actually set to be world-readable, you might be able to fix this by stopping and restarting `docker compose`.

* To access the PosgresQL database directly, you can `docker exec -ti postgres-sb-mirror bash -c 'psql $POSTGRES_DB $POSTGRES_USER'`.

* Requests for videos not in the database are forwarded to `https://sponsor.ajay.app/`, which may be down or malfunctioning. A response of the string `Internal Server Error` is likely to be from there, rather than from this application.