# transWhat

transWhat is a WhatsApp XMPP Gateway based on [Spectrum 2](http://www.spectrum.im) and [Yowsup 2](https://github.com/tgalal/yowsup).

## Getting started

I assume that you have a basic understanding of XMPP and the the concept of a XMPP component / transport. If not, please get a book about Jabber or read the standards.

transWhat is a XMPP transport. By this means it extends the functionallity of an existing XMPP server. It acts as a gateway between the XMPP and WhatsApp networks. It receives WhatsApp messages and forwards them to your XMPP client (and vice-versa).

The implementation of transWhat is based on the [Spectrum 2](http://www.spectrum.im) framework and the [Yowsup 2](https://github.com/tgalal/yowsup) library to interface with WhatsApp.

The following chart summarizes the involved components and the protocols they use to communicate.

### Prosody

##### Installation

I will not cover the installation of Prosody in this guide. Please look for some other tutorials on how to do that.

##### Configuration

The only important thing for us is the configuration of a XMPP component (Spectrum 2 in our case).
See http://prosody.im/doc/components.

Append the following at the end of `/etc/prosody/prosody.cfg.lua`

    Component "whatsapp.0l.de"
        component_secret = "whatsappsucks"
        component_ports = { 5221 }
        component_interface = "127.0.0.1"

### Spectrum 2

##### Installation

Manual compile latest version from [Github](https://github.com/hanzz/libtransport).
You can use the following guide: http://spectrum.im/documentation/installation/from_source_code.html.

##### Configuration

Create a new file `/etc/spectrum2/transports/whatsapp.cfg` with the following content:

    [service]
    user = spectrum
    group = spectrum

    jid = whatsapp.0l.de

    server = localhost
    password = whatsappsucks
    port = 5221

    backend_host = localhost
    backend = /location/to/transwhat/transwhat.py
    
    users_per_backend = 10
    more_resources = 1
    
    admin_jid = your@jid.example
    
    [identity]
    name = transWhat
    type = xmpp
    category = gateway
    
    [logging]
    config = /etc/spectrum2/logging.cfg
    backend_config = /etc/spectrum2/backend-logging.cfg

### transWhat

##### Installation

Checkout the latest version of transWhat from GitHub:

    $ git clone git@github.com:stv0g/transwhat.git
    
Install required dependencies:

    $ pip install --pre e4u protobuf python-dateutil

  - **e4u**: is a simple emoji4unicode python bindings
  - [**yowsup**](https://github.com/tgalal/yowsup): is a python library that enables you build application which use WhatsApp service.

##### Configuration

Then create a new file called `constants.py` in the newly checked out transWhat Git repository:

    BASE_PATH = "/location/to/transwhat"
    
    TOKEN_FILE = BASE_PATH + "/logs/tokens"
    MOTD_FILE = BASE_PATH + "/conf/motd"
    REQUESTS_FILE = BASE_PATH + "/logs/requests"

## Docker

In near future, there will be a Dockerfile for transWhat.

## Contributors

Pull requests, bug reports etc. are welcome. Help us to provide a open implementation of the WhatsApp protocol.

The following persons have contributed major parts of this code:

  - @stv0g (Steffen Vogel): Idea and initial implementation based on Yowsup 1
  - @moyamo (Mohammed Yaseen Mowzer): Port to Yowsup 2
  - @DaZZZl: Improvements to group chats, media & message receipts

## Documentation

A project wiki is available [here](https://dev.0l.de/wiki/projects/transwhat/).

An *outdated* writeup of this project is also availabe at my [blog](http://www.steffenvogel.de/2013/06/29/transwhat/).