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Description:

aiohttptokenauth 0.0.2

aiohttp-tokenauth
Aiohttp simple token auth middleware that can check any token that assign to user or group of users in database or some another place.
Installation
pip install aiohttp_tokenauth

Documentation
Basic usage
First of all, let's create a simple app.
# Full text in example/simple_app.py
from aiohttp import web
from aiohttp_tokenauth import token_auth_middleware

async def example_resource(request):
return web.json_response(request['user'])

async def init():

async def user_loader(token: str):
"""Checks that token is valid

It's the callback that will get the token from "Authorization" header.
It can check that token is exist in a database or some another place.

Args:
token (str): A token from "Authorization" http header.

Returns:
Dict or something else. If the callback returns None then
the aiohttp.web.HTTPForbidden will be raised.
"""
user = None
if token == 'fake-token':
user = {'uuid': 'fake-uuid'}
return user

app = web.Application(middlewares=[token_auth_middleware(user_loader)])
app.router.add_get('/', example_resource)
return app

if __name__ == '__main__':
web.run_app(init())

Then, run the aiohttp app.
$ python example/simple_app.py
======== Running on http://0.0.0.0:8080 ========
(Press CTRL+C to quit)

Now try to get access to url with token in "Authorization" header.
$ curl -H 'Authorization: Bearer fake-token' http://0.0.0.0:8080
{"uuid": "fake-uuid"}

And result without token.
$ curl http://0.0.0.0:8080
401: Missing authorization header

Ignoring routes and http methods
You can ignore specific routes, app the paths to "exclude_routes".
app = web.Application(middlewares=[
token_auth_middleware(
user_loader=user_loader,
# You can use regular expressions here
exclude_routes=('/exclude', r'/exclude/\w+/info'),
exclude_methods=('POST',),
),
])

Change auth scheme
For changing the scheme (prefix in "Authorization" header) use auth_scheme argument.
app = web.Application(middlewares=[
token_auth_middleware(
user_loader=user_loader,
auth_scheme='Token',
),
])

Now such request is valid:
$ curl -H 'Authorization: Token fake-token' http://0.0.0.0:8080
{"uuid": "fake-uuid"}