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        "author": "Elvio Toccalino",
        "author_email": "me@etoccalino.com",
        "bugtrack_url": null,
        "classifiers": [
            "Development Status :: 5 - Production/Stable",
            "Environment :: Web Environment",
            "Framework :: Django",
            "Intended Audience :: Developers",
            "License :: OSI Approved :: MIT License",
            "Operating System :: OS Independent",
            "Programming Language :: Python :: 2.7",
            "Topic :: Internet :: WWW/HTTP",
            "Topic :: Security"
        ],
        "description": "===================================\ndjango-rest-framework-httpsignature\n===================================\n\n.. image:: https://travis-ci.org/etoccalino/django-rest-framework-httpsignature.png?branch=master\n           :target: https://travis-ci.org/etoccalino/django-rest-framework-httpsignature\n\n\nOverview\n========\n\nProvides `HTTP Signature`_ support for `Django REST framework`_. The HTTP Signature package provides a way to achieve origin authentication and message integrity for HTTP messages. Similar to Amazon's `HTTP Signature scheme`_, used by many of its services. The `HTTP Signature`_ specification is currently an IETF draft.\n\n.. contents::\n\nInstallation\n============\n\nInstalling the package via the repository::\n\n   pip install djangorestframework-httpsignature\n\nOlder version of ``pip`` don't support the Wheel format (which is how ``httpsig`` is distributed). The problem manifests when installing the requirements, ``pip`` will complain that it cannot find a ``httpsig``. In such cases, ``pip`` needs to be upgraded::\n\n  pip install --upgrade pip\n\nAnother possible problem: while installing via ``python setup.py install`` you may encounter::\n\n  No local packages or download links found for httpsig\n  error: Could not find suitable distribution for Requirement.parse('httpsig')\n\nIf that is the case, use ``pip install httpsig`` to install the ``httpsig`` package and retry ``python setup.py install``.\n\nRunning the tests\n=================\n\nTo run the tests for the packages, use the following command on the repository root directory::\n\n  python manage.py test\n\nUsage\n=====\n\nTo authenticate HTTP requests via HTTP signature, you need to:\n\n1. Install this package in your Django project, as instructed in `Installation`_.\n2. Add ``rest_framework_httpsignature`` to your ``settings.py`` INSTALLED_APPS.\n3. In your app code, extend the ``SignatureAuthentication`` class, as follows::\n\n    # my_api/auth.py\n\n    from rest_framework_httpsignature.authentication import SignatureAuthentication\n\n    class MyAPISignatureAuthentication(SignatureAuthentication):\n        # The HTTP header used to pass the consumer key ID.\n        # Defaults to 'X-Api-Key'.\n        API_KEY_HEADER = 'X-Api-Key'\n\n        # A method to fetch (User instance, user_secret_string) from the\n        # consumer key ID, or None in case it is not found.\n        def fetch_user_data(self, api_key):\n            # ...\n            # example implementation:\n            try:\n                user = User.objects.get(api_key=api_key)\n                return (user, user.secret)\n            except User.DoesNotExist:\n                return None\n\n\n4. Configure Django REST framework to use you authentication class; e.g.::\n\n    # my_project/settings.py\n\n    # ...\n    REST_FRAMEWORK = {\n        'DEFAULT_AUTHENTICATION_CLASSES': (\n           'my_api.auth.MyAPISignatureAuthentication',\n        ),\n        'DEFAULT_PERMISSION_CLASSES': (\n            'rest_framework.permissions.IsAuthenticated',\n        )\n    }\n    # The above will force HTTP signature for all requests.\n    # ...\n\n\nRoadmap\n=======\n\n- Currently, the library only support HMAC SHA256 for signing.\n- The ``REQUIREMENTS.txt`` file is fairly strict. It is very possible that previous versions of Django and Django REST framework are supported.\n- Since HTTP Signature uses a HTTP header for the request date and time, the authentication class could deal with request expiry.\n\n\nExample usage & session w/cURL\n==============================\n\nAssuming the setup detailed in `Usage`_, a project running on ``localhost:8000`` could be probed with cURL as follows::\n\n  ~$ SSS=Base64(Hmac(SECRET, \"Date: Mon, 17 Feb 2014 06:11:05 GMT\", SHA256))\n  ~$ curl -v -H 'Date: \"Mon, 17 Feb 2014 06:11:05 GMT\"' -H 'Authorization: Signature keyId=\"my-key\",algorithm=\"hmac-sha256\",headers=\"date\",signature=\"SSS\"'\n\nAnd for a much less painful example, check out the `httpsig package`_ documentation to use ``requests`` and ``httpsig``.\n\n\n.. References:\n.. _`HTTP Signature`: https://datatracker.ietf.org/doc/draft-cavage-http-signatures/\n.. _`Django REST framework`: http://django-rest-framework.org/\n.. _`HTTP Signature scheme`: http://docs.aws.amazon.com/general/latest/gr/signature-version-4.html\n.. _`httpsig package`: https://pypi.python.org/pypi/httpsig",
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