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https://github.com/l-n-s/i2plib

🐍 i2plib: A modern asynchronous library for building I2P applications
https://github.com/l-n-s/i2plib

asyncio i2p python

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🐍 i2plib: A modern asynchronous library for building I2P applications

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i2plib
======

.. image:: https://travis-ci.com/l-n-s/i2plib.svg?branch=master
:target: https://travis-ci.com/l-n-s/i2plib
.. image:: https://readthedocs.org/projects/i2plib/badge/?version=latest
:target: https://i2plib.readthedocs.io/en/latest/
:alt: Latest Read The Docs
.. image:: https://codecov.io/github/l-n-s/i2plib/coverage.svg?branch=master
:target: https://codecov.io/github/l-n-s/i2plib

i2plib is a modern asynchronous library for building I2P applications.

Installing
----------

::

pip install i2plib

Requirements:

- Python version >= 3.5
- I2P router with SAM API enabled

Connecting to a remote I2P destination
--------------------------------------

.. code-block:: python

import asyncio
import i2plib

async def connect_test(destination):
session_name = "test-connect"

# create a SAM stream session
await i2plib.create_session(session_name)

# connect to a destination
reader, writer = await i2plib.stream_connect(session_name, destination)

# write data to a socket
writer.write(b"PING")

# asynchronously receive data
data = await reader.read(4096)
print(data.decode())

# close the connection
writer.close()

# run event loop
loop = asyncio.get_event_loop()
loop.run_until_complete(connect_test("dummy.i2p"))
loop.stop()

Accept connections in I2P
-------------------------

.. code-block:: python

import asyncio
import i2plib

async def accept_test():
session_name = "test-accept"

# create a SAM stream session
await i2plib.create_session(session_name)

# accept a connection
reader, writer = await i2plib.stream_accept(session_name)

# first string on a client connection always contains clients I2P destination
dest = await reader.readline()
remote_destination = i2plib.Destination(dest.decode().strip())

# read for the actual incoming data from the client
data = await reader.read(4096)

print(data.decode())

# send data back
writer.write(b"PONG")

# close the connection
writer.close()

# run event loop
loop = asyncio.get_event_loop()
loop.run_until_complete(accept_test())
loop.stop()

Server tunnel
-------------

Expose a local service to I2P like that:

.. code-block:: python

import asyncio
import i2plib

loop = asyncio.get_event_loop()
# making your local web server available in the I2P network
tunnel = i2plib.ServerTunnel(("127.0.0.1", 80))
asyncio.ensure_future(tunnel.run())

try:
loop.run_forever()
except KeyboardInterrupt:
pass
finally:
loop.close()

Client tunnel
-------------

Bind a remote I2P destination to a port on your local host:

.. code-block:: python

import asyncio
import i2plib

loop = asyncio.get_event_loop()
# bind irc.echelon.i2p to 127.0.0.1:6669
tunnel = i2plib.ClientTunnel("irc.echelon.i2p", ("127.0.0.1", 6669))
asyncio.ensure_future(tunnel.run())

try:
loop.run_forever()
except KeyboardInterrupt:
pass
finally:
loop.close()

More examples
-------------

You can see more demo applications in `docs/examples` directory of the source repository.

Resources
---------

* `i2plib online documentation`_
* `Invisible Internet Project`_
* `SAM API documentation`_
* `Python asyncio documentation`_

.. _i2plib online documentation: https://i2plib.readthedocs.io/en/latest/
.. _Invisible Internet Project: https://geti2p.net/en/
.. _SAM API documentation: https://geti2p.net/en/docs/api/samv3
.. _Python asyncio documentation: https://docs.python.org/3/library/asyncio.html

Aknowledgments
--------------

* `i2p.socket, drop in python socket module that uses i2p`_
* `txi2p, I2P bindings for Twisted`_
* `leaflet, Dead simple I2P SAM library, written in Python 3`_

.. _i2p.socket, drop in python socket module that uses i2p: https://github.com/majestrate/i2p.socket
.. _txi2p, I2P bindings for Twisted: https://github.com/str4d/txi2p
.. _leaflet, Dead simple I2P SAM library, written in Python 3: https://github.com/MuxZeroNet/leaflet