Aimed at improving Bitcoins resiliency, PonyRelay is a simple Python application that acts as a bridge between SMS texts and the Bitcoin peer-to-peer network. It watches a folder for incoming Bitcoin transactions, delivered by text messages originating from the PonyDirect mobile app. A Bitcoin transaction is transmitted using multiple text messaages, so this PonyRelay reconstructs and validates the transaction and broadcasts it through a running Bitcoin node.
This is the very first version 0.1-alpha. It works on my machine. Feel free to play with it. Improvement proposals are welcome!
Todo-List:
- cleanup routine (drop out orphaned files and spool entries after some time)
- add support for SMS API gateway, using web hooks
- support for low-cost GSM module on Raspberry Pi
- whitelist, blacklist senders, with option to send confirmation text message
- use Bitcoin Core JSON-RPC directly
- add tests
- make a guide :-)
bitcoin-cliconnected to a Bitcon node needs to be present- Mobile broadband modem (eg. usb-stick), configured with
gammu-smsdto receive text messages
From Github, tested on Ubuntu 16.04 and Raspbian Stretch
$ sudo apt update
$ sudo apt install git python3 python3-pip
$ git clone https://github.com/Stadicus/ponyrelay
$ cd ponyrelay
$ pip3 install -r requirements.txt
$ chmod +x ponyrelay.py
$ ./ponyrelay.py
Use ./ponyrelay.py --help for information about command line arguments.