Files @ 46c50ec0b192
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Location: website/www/conservancy/

Bradley M. Kuhn
Copyleft Compliance: Minor rewrite of strategy & firmware liberation

This rewrite should improve the stand-alone nature of these documents
and allow for better integration with other summary text and
announcements on the website.

Note that they have now drifted heavily from the original formulation
of the items as grant proposals.
import hashlib

from django.conf import settings
from django.template import RequestContext

# This is backwards compatibilty support for a custom function we wrote
# ourselves that is no longer necessary in modern Django.
from django.shortcuts import render as render_template_with_context

class ParameterValidator(object):
    def __init__(self, given_hash_or_params, params_hash_key=None):
        if params_hash_key is None:
            self.given_hash = given_hash_or_params
            self.given_hash = given_hash_or_params.get(params_hash_key)
        seed = getattr(settings, 'CONSERVANCY_SECRET_KEY', '')
        self.hasher = hashlib.sha256(seed)
        if isinstance(self.given_hash, basestring):
            self.hash_type = type(self.given_hash)
            self.hash_type = type(self.hasher.hexdigest())
        self.valid = None
        if not (self.given_hash and seed):

    def __enter__(self):
        self.valid = self.valid and None
        return self

    def __exit__(self, exc_type, exc_value, exc_tb):
        if exc_type is None:

    def validate(self, data):
        self.valid = self.valid and None

    def check(self):
        if self.valid or (self.valid is None):
            self.valid = self.hash_type(self.hasher.hexdigest()) == self.given_hash
        return self.valid

    def fail(self):
        self.valid = False