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django-fost-authn-0.3.8
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HTTP SHA1 HMAC authentication backend for Django
| ویژگی | مقدار |
|---|---|
| سیستم عامل | - |
| نام فایل | django-fost-authn-0.3.8 |
| نام | django-fost-authn |
| نسخه کتابخانه | 0.3.8 |
| نگهدارنده | [] |
| ایمیل نگهدارنده | [] |
| نویسنده | Kirit Saelensminde |
| ایمیل نویسنده | kirit@felspar.com |
| آدرس صفحه اصلی | https://github.com/Felspar/django-fost-authn |
| آدرس اینترنتی | https://pypi.org/project/django-fost-authn/ |
| مجوز | Boost Software License - Version 1.0 - August 17th, 2003 |
Django Fost Authentication
==========================
An authentication back-end for Django implementing request signing using
strong cryptography. It is based on the request signing mechanism
implemented by Amazon for s3.
Both requests and URLs can be signed. Request signing are used where the
user agent itself is able to perform the signing (i.e. it knows the API
key and secret). URL signing is used where a authentication needs to be
delegated to a user agent not capable (or not trusted) to sign the
request.
To use in a Django project
==========================
Add the git repository to your pip install file and then use:
::
pip install -r setup.pip
To your settings.py you need to add the middleware. It doesn't matter
where in the middleware list it is added:
::
MIDDLEWARE_CLASSES = (
'django.middleware.common.CommonMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'fost_authn.Middleware',
)
Unless you've already added a custom authentication backend your
settings.py probably doesn't already have the authentication backends
set on it. The following will enable the normal Django authentication
(forms/session based) and the Fost authentication:
::
AUTHENTICATION_BACKENDS = (
'django.contrib.auth.backends.ModelBackend',
'fost_authn.FostBackend',
)
In order to be able to authenticate requests the authentication backend
needs to know how to map API keys to secrets and to users.
Finding a secret from an API key is done by giving a function to the
FOST\_AUTHN\_GET\_SECRET setting. If this is not configured then the
default implementation will use a SHA1 hash of the user's password
field. This ensures that the secret will change even if the user changes
their password to the same as it was due to the change in the salt
stored in the field.
The following is an example of what can be put in the settings.py.
::
def FOST_AUTHN_GET_SECRET(request, key):
from myapp.models import api_keys
return api_keys.objects.get(key=key).secret
Changes to existing Django classes
----------------------------------
After installing the authentication middleware the Django HttpRequest
object is augmented with a new member, SIGNED, which is a ``dict``
holding the signed request header members. If the request has not been
properly signed this ``dict`` will be empty.
Optional settings
-----------------
FOST\_AUTHN\_MISSIGNED\_SLEEP\_TIME
The amount of time to sleep when a FOST Authorization header is
incorrect. Defaults to 0.5 seconds.
FOST\_AUTHN\_MAXIMUM\_CLOCK\_SKEW
The maximum allowed difference between the time when the request was
signed and the time on the server. Defaults to 300 seconds.
Signing requests
================
In order to authenticate against the back end requests must be properly
signed. \`fost\_auth.signature' includes two functions for doing this
that can be used.
``fost_hmac_request_signature(secret, method, path, timestamp, headers = {}, body = '')``
-----------------------------------------------------------------------------------------
The headers are in the form of a dict giving the header name and values.
The function returns both the signature and the document that was
signed.
It is the responsibility of the caller to correctly place the header
values into the request object that is to be used, including the
``Authorization`` header.
Running tests
=============
For best results create a virtualenv, then initialise it with test.pip.:
::
mkvirtualenv django-fost-authn
pip install -r test.pip
Run the tests using:
::
./runtest
نحوه نصب
نصب پکیج whl django-fost-authn-0.3.8:
pip install django-fost-authn-0.3.8.whl
نصب پکیج tar.gz django-fost-authn-0.3.8:
pip install django-fost-authn-0.3.8.tar.gz