# Salty IM (Legacy)

A rudimentary terminal / command-line based chat system using the
[salty](https://git.mills.io/prologic/salty) command-line tool for encrypting
and decrypting messages using the [saltpack](https://saltpack.org) message
format and using [msgbus](https://git.mills.io/prologic/msgbux) as transport.

## Requirements

- You need a POSIX Shell, e.g: `/bin/sh`
  - You also need [jq](https://stedolan.github.io/jq/) installed
    (the script uses this to parse the JSON from Discovery requests)
- [msgbus](https://git.mills.io/prologic/msgbus)
- [salty](https://git.mills.io/prologic/salty)

If you have [Go](https://golang.org) installed:

```#!sh
$ go install git.mills.io/prologic/msgbus/cmd/msgbus@latest
$ go install go.mills.io/salty/cmd/salty@latest
$ go install go.mills.io/salty/cmd/salty-keygen@latest
```

## Quick Start

```#!sh
export MSGBUS_URI=https://msgbus.<yourdomain>
$ ./salty-chat read &
$ ./salty-chat chat prologic@mills.io
```

> **NB:** You need to ensure you have a valid msgbus Endpoint for `salt-chat`
> to work. See [Endpoint](#Endpoint) for details.

## Setup

> SKip this section if you ran `salty-chat make-user`

### Keys

To generate your Private / Public keys:

```#!sh
$ salty-keygen -o $HOME/.config/salty/$USER.key
```

Setup an environment variable in your shell to point `SALTY_IDENTITY`
to `$HOME/.config/salty/$USER.key`. For example:

```#!sh
export SALTY_IDENTITY="$HOME/.config/salty/$USER.key"
```

### Inbox

To ensure you are reading from your own Inbox by default use: `export SALTY_INBOX="username"`

### Endpoint

First you need to setup [msgbus](https://git.mills.io/prologic/msgbus)
somewhere, see that project for details on how to set this up. Or you can just
use the instance I run at https://msgbus.mills.io/ (just please don't abuse it!)

Point an environment variable called `MSGBUS_URI` to your msgbus instance.

Example:
```#!sh
export MSGBUS_URI=https://msgbus.mills.io
```

> **NB:** You are welcome to use my (James Mills) msgbus instance above but
> please don't abuse it!

### Discovery

Create a JSON file called `<user>.json` and place it at the root of your
domain on a path like `/.well-known/salty/user.json`. The conents of which are:

```#!json
{
  "endpoint": "https://msgbus.mills.io",
  "topic": "prologic",
  "key": "kex1ekt5cru4vs42wnaxppkjn5pexmt2w6uxx9z2mz0fqeuc80e0g9gsggs8ah"
}
```

You can see an example of [prologic@mills.io](https://mills.io/.well-known/salty/prologic.json)

## Usage

### Start a Chat

```#!sh
$ ./salty-chat chat prologic@mills.io
>
```

### Sending a Message

```#!sh
$ ./salty-chat send prologic@mills.io Test
2022/03/17 01:46:14 Reading message from stdin...
```

### Receiving your Messages

```#!sh
$ ./salty-chat read
INFO[0000] successfully connected to wss://msgbus.mills.io/prologic
# signed by: kex1ekt5cru4vs42wnaxppkjn5pexmt2w6uxx9z2mz0fqeuc80e0g9gsggs8ah
[2022-03-17T01:23+10:00] <prologic> Test
# signed by: kex1ekt5cru4vs42wnaxppkjn5pexmt2w6uxx9z2mz0fqeuc80e0g9gsggs8ah
[2022-03-17T01:46+10:00] <prologic> Test
```

## License

`salty-msgbus-chat` is licensed under the terms of the [WTFPL](/LICENSE) license.