AMWA NMOS BCP-003-02 Authorisation Server Implementation

A Flask-based implementation of an OAuth2 Authorisation Server based on AMWA NMOS BCP-003-02 using RFC 6749. The API implemented here is a candidate to become the proposed specification AMWA NMOS IS-10.

The server produces access tokens in the form of JSON Web Tokens. Dynamic Client Registration is also supported in line with RFC 7591.

The core of the implementation uses the Authlib Library, and is based on the Authlib OAuth2 Server Example.

Please Check the README.md in the nmosauth directory for more in-depth instructions on starting the AMWA NMOS Authorisation Server and registering a client.

Installation

System Requirements

• Linux (untested on Windows and Mac)
• Python 3.x
• Python Pip3

Python3 Requirements

These should be installed automatically as part of the install process.

• six
• nmoscommon
• Flask
• sqlalchemy
• Flask-SQLAlchemy
• Authlib>=1.1
• Flask-Cors
• requests
• gevent
• systemd
• pyopenssl

Python Installation

Due to the installation needing to install files into system directories (/var/nmosauth for system files and /usr/bin for executable files) the --no-binary flag must be set in order to pull the source distribution from PyPi and not a Wheel (built) distribution. To install from pip:

# Install From Pip
$ sudo pip3 install nmos-auth --no-binary nmos-auth

For pip3 installations from source:

# Change to top-level directory
$ cd nmos-auth-server

# Install via pip locally
$ sudo pip3 install . --no-binary nmos-auth

For basic setuptools installations:

# Install Python setuptools
$ sudo pip3 install setuptools

# Install the package
$ cd nmos-auth-server
$ sudo python3 setup.py install

Testing

Testing of the package can be achieved using tox:

# Install tox
sudo pip3 install tox

# Run tests using tox environment for Python3
cd nmos-auth-server
tox -e py3

Debian

For use as a Debian package (on Ubuntu/Debian systems):

make deb
cd dist/
sudo dpkg -i <name of package>.deb

NOTE FOR USE ON R&D NETWORK: If there is a dependency clash during installation, you may need to install python-sqlalchemy using:

sudo apt-get install python-sqlalchemy=1.0.11+ds1-1ubuntu2

NOTE WHEN INSTALLING VIA DEBIAN PACKAGE: The version of cryptography and pyOpenSSL on the Ubuntu Xenial mirrors are out-of-date. Please install both Cryptography and PyOpenSSL via Pip for compatible versions.

Usage

Basic Usage

For pure Python usage:

# Execute service file
$ sudo /usr/bin/nmosauth

If installing via a Debian package (e.g. using apt-get, dpkg, etc), Systemd service files should be placed in system directories. The service can be restarted using:

# Run Service using SystemD
sudo systemctl restart python3-nmos-auth

Getting Started

Please Check the README.md in the nmosauth directory for more in-depth instructions on starting the NMOS Authorisation Server and registering a client.

You can now navigate to http://127.0.0.1:4999/x-nmos/auth/v1.0/home/ to find the Home Page of the authorization server in order to perform any admin tasks, such as registering users and clients.