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Securely transfer data between computers

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# Magic Wormhole Mailbox Server [![PyPI](http://img.shields.io/pypi/v/magic-wormhole-mailbox-server.svg)](https://pypi.python.org/pypi/magic-wormhole-mailbox-server) [![Build Status](https://travis-ci.org/warner/magic-wormhole-mailbox-server.svg?branch=master)](https://travis-ci.org/warner/magic-wormhole-mailbox-server) [![Windows Build Status](https://ci.appveyor.com/api/projects/status/mfnn5rsyfnrq576a/branch/master?svg=true)](https://ci.appveyor.com/project/warner/magic-wormhole-mailbox-server) [![codecov.io](https://codecov.io/github/warner/magic-wormhole-mailbox-server/coverage.svg?branch=master)](https://codecov.io/github/warner/magic-wormhole-mailbox-server?branch=master)

This repository holds the code for the main server that [Magic-Wormhole](http://magic-wormhole.io) clients connect to. The server performs store-and-forward delivery for small key-exchange and control messages. Bulk data is sent over a direct TCP connection, or through a [transit-relay](https://github.com/warner/magic-wormhole-transit-relay).

Clients connect with WebSockets, for low-latency delivery in the happy case where both clients are attached at the same time. Message are stored to enable non-simultaneous clients to make forward progress. The server uses a small SQLite database for persistence (and clients will reconnect automatically, allowing the server to be rebooted without losing state). An optional “usage DB” tracks historical activity for status monitoring and operational maintenance.

## Installation

` pip install magic-wormhole-mailbox-server `

You either want to do this into a “user” environment (putting the twist and twistd executables in ~/.local/bin/) like this:

` pip install --user magic-wormhole-mailbox-server `

or put it into a virtualenv, to avoid modifying the system python’s libraries, like this:

` virtualenv venv source venv/bin/activate pip install magic-wormhole-mailbox-server `

You probably don’t want to use sudo when you run pip, since the dependencies that get installed may conflict with other python programs on your computer. pipsi is usually a good way to install into isolated environments, but unfortunately it doesn’t work for magic-wormhole-mailbox-server, because we don’t have a dedicated command to start the server (twist, described below, comes from the twisted package, and pipsi doesn’t expose executables from dependencies).

For the installation from source, clone this repo, cd into the folder, create and activate a virtualenv, and run pip install ..

## Running A Server

Note that the standard [Magic-Wormhole](http://magic-wormhole.io) command-line tool is preconfigured to use a mailbox server hosted by the project, so running your own server is only necessary for custom applications that use magic-wormhole as a library.

The mailbox server is deployed as a twist/twistd plugin. Running a basic server looks like this:

` twist wormhole-mailbox --usage-db=usage.sqlite `

Use twist wormhole-mailbox --help for more details.

If you use the default --port=tcp:4000, on a machine named example.com, then clients can reach your server with the following option:

` wormhole --relay-url=ws://example.com:4000/v1 send FILENAME `

## License, Compatibility

This library is released under the MIT license, see LICENSE for details.

This library is compatible with python2.7, and python3 (3.5 and higher).

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