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[rbdr/junction] / README.md

# Junction

Connect people through any URL.

Junction is a web extension for Firefox, Chrome and Safari that lets you start
an audio call at any URL.

## Building

Running `make` or `make package` will regenerate the content script, and
package the extension for all browsers in the `./build/` directory with
the following outputs:

- `junction.xpi`: The firefox extension
- `junction.zip`: The chrome extension
- `Junction.app`: The safari extension app

## Developing

The project is divided into three main parts:

- `server`: A server that handles message passing to establish the WebRTC
  connections.
- `extension`: The main code of the extension itself.
- `safari`: The safari app, it wraps the extension using symlinks.

### Dependencies

- `make` to run the build commands. It's included in `macos`
- `xcode` to build the safari extension. Can be downloaded from the
  [apple developer portal][xcode-download].
- `node` and `pnpm` to build the extension, and if you want to run the server
  directly. Node can be installed via brew with `brew install node`, or with
  a version manager like [asdf][asdf]. For `pnpm` check the [website][pnpm].
- `podman` and `podman-compose` if you want to run the server as a container.
  Both can be installed with homebrew `brew install podman podman-compose`
- `prettier` to format Javascript, JSON, Yaml, and Markdown. Will automatically
  install when running `make format`.
- `xcbeautify` to format swift. Can be installed with homebrew
  `brew install xcbeautify`

If you're running macos and using homebrew, you can install them all with
`make prepare-environment`.

### Server

The server is a socket.io server that relays messages between peers to help
establish a WebRTC connection.

#### Configuration

You can use environment variables to control the server.

- `JUNCTION_SERVER_PORT` which port to listen on. Defaults to `8000`.

### Extension

The extension uses WebExtension manifest v2 and is compatible with Firefox,
Chrome and Safari.

You can build all extensions using `make` in the root of the directory.

If you want to run manually then you can run `pnpm install` from the
`extension` folder to install dependencies, and `pnpm build` to generate the
content script.

```
$ pnpm install && pnpm build
```

#### Testing on Firefox

In order to test on firefox, first go to `about:debugging`, then click
on the `This Firefox` option. Then click on `Load Temporary Add-On` and
point the browser to the `build/junction.xpi` file if you're using `make`, or
`extension/manifest.json` file if you're testing without packaging.

This will enable the extension and will allow you to use the inspector to
debug.

#### Testing on Chrome

In order to test on chrome, first go to `chrome://extensions/`. Make sure
`Developer mode` is enabled. You can drag the `build/junction.zip` file or
click `Load Unpacked` and point the browser to the `extension` directory.

#### Testing on Safari

Open `Junction.app` and then enable the extension in Safari.

### Formatting

Running `make format` will format the code with prettify and xcbeautify

[xcode-download]: https://developer.apple.com/xcode/resources/
[asdf]: https://asdf-vm.com/
[pnpm]: https://pnpm.io/installation