p2pd 2.3.2

Asynchronous P2P networking library and service

# P2PD

[Coverage >= 82%] [Python >= 3.6] [Mac, Win, Nix, BSD, Android]

P2PD is a new project aiming to make peer-to-peer networking simple and ubiquitous. P2PD can be used either as a library or as a service. As a library P2PD is written in Python 3 using asyncio for everything. As a service P2PD provides a REST API on http://127.0.0.1:12333/. The REST API is provided for non-Python languages.

P2PD offers engineers the following features:

• Multiple strategies for establishing peer-to-peer direct connections.

  • Direct connect = Connect to a reachable node.

  • Reverse connect = Tell a node to connect to you.

  • TCP hole punching = Simultaneous TCP connections.

  • TURN = Use a proxy server as a last resort.

• Advanced NAT detection. P2PD can detect 7 different types of NATs and

  5 different sub-types for a combined total of 35 unique NAT configurations. The result is better NAT bypass.

• Smart TCP hole punching. The TCP hole punching algorithm has been

  designed to require minimal communication between peers to increase the chances of success. The algorithm supports a diverse number of NAT configurations for the best results possible.

• Port forwarding (IPv4) and pin hole (IPv6.) Automatically

  handles openning ports on the router to increase reachability.

• IPv6 ready from day 1. Supports IPv4 and IPv6. Introduces a new

  format for addresses that offers insight into a peer’s NIC cards, internal network, and NAT devices.

• A new way to do network programming. Focuses on NICs as the

  starting point for building services. Introduces ‘routes’ as a way to provide visibility into external addresses. You can build services that support IPv4, IPv6, TCP, and UDP without writing different code for each of them.

• Language-agnostic REST API. You can call /p2p/open/name/addr

  then /p2p/pipe/name to turn any HTTP connection into a two-way relay between a peer-to-peer connection.

• Minimal dependencies. Most of the code in P2PD uses the Python standard library to improve portability and reduce packaging issues.

• Built on open protocols. P2PD uses STUN for address lookups,

  MQTT for signaling messages, and TURN for last resort proxying. All of these protocols have public infrastructure.

Learn how to use the software: https://p2pd.readthedocs.io/