More Itsdangerous

An identity policy for morepath using itsdangerous.

Usage

import morepath
from more.itsdangerous import IdentityPolicy

class App(morepath.App):
    pass

@App.identity_policy()
def get_identity_policy():
    return IdentityPolicy()

@App.verify_identity()
def verify_identity(identity):
    # trust the identity established by the identity policy (we could keep
    # checking if the user is really in the database here - or if it was
    # removed in the meantime)
    return True

See http://morepath.readthedocs.org/en/latest/security.html to learn more about Morepath's security model and and have a look at the commented source code:

https://github.com/morepath/more.itsdangerous/blob/master/more/itsdangerous/identity_policy.py

The IdentityPolicy class is meant to be extended because everyone has differing needs. It simply provides a way to store the identity as a signed cookie, using itsdangerous.

Usage in Development

By default, the cookies created by more.itsdangerous are HttpOnly and Secure.

If you have differing needs or if you are running a development server you might have to change the identity policy's configuration:

@App.identity_policy()
def get_identity_policy():
    # make the cookies work under http, not just https
    return IdentityPolicy(secure=False)

Note that this should only be used in development. In this day and age you do not want to transmit cookies over http!

Run the Tests

Install tox and run it:

pip install tox
tox

Limit the tests to a specific python version:

tox -e py39

Conventions

More Itsdangerous follows PEP8 as close as possible. To test for it run:

tox -e pep8

More Itsdangerous uses Semantic Versioning

License

more.itsdangerous is released under the revised BSD license