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"""patches for the coffin module"""
from jinja2 import nodes
from jinja2 import Markup
from jinja2.ext import Extension
class CsrfTokenExtension(Extension):
"""Jinja2-version of the ``csrf_token`` tag.
Adapted from a snippet by Jason Green:
http://www.djangosnippets.org/snippets/1847/
This tag is a bit stricter than the Django tag in that it doesn't
simply ignore any invalid arguments passed in.
"""
tags = set(['csrf_token'])
def parse(self, parser):
lineno = parser.stream.next().lineno
return nodes.Output([
self.call_method('_render', [nodes.Name('csrf_token', 'load')])
]).set_lineno(lineno)
def _render(self, csrf_token):
from django.template.defaulttags import CsrfTokenNode
return Markup(CsrfTokenNode().render({'csrf_token': csrf_token}))
def add_csrf_token_tag():
"""adds csrf token tag to the default library"""
import coffin.template.defaulttags
coffin.template.defaulttags.CsrfTokenExtension = CsrfTokenExtension
csrf_token = CsrfTokenExtension
coffin.template.defaulttags.csrf_token = csrf_token
coffin.template.defaulttags.register.tag(csrf_token)
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