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"""
The :mod:`compatability` module provides support for backwards compatability with older versions of django/python.
"""
# cStringIO only if it's available
try:
import cStringIO as StringIO
except ImportError:
import StringIO
# parse_qs
try:
# python >= ?
from urlparse import parse_qs
except ImportError:
# python <= ?
from cgi import parse_qs
# django.test.client.RequestFactory (Django >= 1.3)
try:
from django.test.client import RequestFactory
except ImportError:
from django.test import Client
from django.core.handlers.wsgi import WSGIRequest
# From: http://djangosnippets.org/snippets/963/
# Lovely stuff
class RequestFactory(Client):
"""
Class that lets you create mock :obj:`Request` objects for use in testing.
Usage::
rf = RequestFactory()
get_request = rf.get('/hello/')
post_request = rf.post('/submit/', {'foo': 'bar'})
This class re-uses the :class:`django.test.client.Client` interface. Of which
you can find the docs here__.
__ http://www.djangoproject.com/documentation/testing/#the-test-client
Once you have a `request` object you can pass it to any :func:`view` function,
just as if that :func:`view` had been hooked up using a URLconf.
"""
def request(self, **request):
"""
Similar to parent class, but returns the :obj:`request` object as soon as it
has created it.
"""
environ = {
'HTTP_COOKIE': self.cookies,
'PATH_INFO': '/',
'QUERY_STRING': '',
'REQUEST_METHOD': 'GET',
'SCRIPT_NAME': '',
'SERVER_NAME': 'testserver',
'SERVER_PORT': 80,
'SERVER_PROTOCOL': 'HTTP/1.1',
}
environ.update(self.defaults)
environ.update(request)
return WSGIRequest(environ)
# django.views.generic.View (Django >= 1.3)
try:
from django.views.generic import View
if not hasattr(View, 'head'):
# First implementation of Django class-based views did not include head method
# in base View class - https://code.djangoproject.com/ticket/15668
class ViewPlusHead(View):
def head(self, request, *args, **kwargs):
return self.get(request, *args, **kwargs)
View = ViewPlusHead
except ImportError:
from django import http
from django.utils.functional import update_wrapper
# from django.utils.log import getLogger
# from django.utils.decorators import classonlymethod
# logger = getLogger('django.request') - We'll just drop support for logger if running Django <= 1.2
# Might be nice to fix this up sometime to allow djangorestframework.compat.View to match 1.3's View more closely
class View(object):
"""
Intentionally simple parent class for all views. Only implements
dispatch-by-method and simple sanity checking.
"""
http_method_names = ['get', 'post', 'put', 'delete', 'head', 'options', 'trace']
def __init__(self, **kwargs):
"""
Constructor. Called in the URLconf; can contain helpful extra
keyword arguments, and other things.
"""
# Go through keyword arguments, and either save their values to our
# instance, or raise an error.
for key, value in kwargs.iteritems():
setattr(self, key, value)
# @classonlymethod - We'll just us classmethod instead if running Django <= 1.2
@classmethod
def as_view(cls, **initkwargs):
"""
Main entry point for a request-response process.
"""
# sanitize keyword arguments
for key in initkwargs:
if key in cls.http_method_names:
raise TypeError(u"You tried to pass in the %s method name as a "
u"keyword argument to %s(). Don't do that."
% (key, cls.__name__))
if not hasattr(cls, key):
raise TypeError(u"%s() received an invalid keyword %r" % (
cls.__name__, key))
def view(request, *args, **kwargs):
self = cls(**initkwargs)
return self.dispatch(request, *args, **kwargs)
# take name and docstring from class
update_wrapper(view, cls, updated=())
# and possible attributes set by decorators
# like csrf_exempt from dispatch
update_wrapper(view, cls.dispatch, assigned=())
return view
def dispatch(self, request, *args, **kwargs):
# Try to dispatch to the right method; if a method doesn't exist,
# defer to the error handler. Also defer to the error handler if the
# request method isn't on the approved list.
if request.method.lower() in self.http_method_names:
handler = getattr(self, request.method.lower(), self.http_method_not_allowed)
else:
handler = self.http_method_not_allowed
self.request = request
self.args = args
self.kwargs = kwargs
return handler(request, *args, **kwargs)
def http_method_not_allowed(self, request, *args, **kwargs):
allowed_methods = [m for m in self.http_method_names if hasattr(self, m)]
#logger.warning('Method Not Allowed (%s): %s' % (request.method, request.path),
# extra={
# 'status_code': 405,
# 'request': self.request
# }
#)
return http.HttpResponseNotAllowed(allowed_methods)
def head(self, request, *args, **kwargs):
return self.get(request, *args, **kwargs)
try:
import markdown
import re
class CustomSetextHeaderProcessor(markdown.blockprocessors.BlockProcessor):
"""
Override `markdown`'s :class:`SetextHeaderProcessor`, so that ==== headers are <h2> and ---- headers are <h3>.
We use <h1> for the resource name.
"""
# Detect Setext-style header. Must be first 2 lines of block.
RE = re.compile(r'^.*?\n[=-]{3,}', re.MULTILINE)
def test(self, parent, block):
return bool(self.RE.match(block))
def run(self, parent, blocks):
lines = blocks.pop(0).split('\n')
# Determine level. ``=`` is 1 and ``-`` is 2.
if lines[1].startswith('='):
level = 2
else:
level = 3
h = markdown.etree.SubElement(parent, 'h%d' % level)
h.text = lines[0].strip()
if len(lines) > 2:
# Block contains additional lines. Add to master blocks for later.
blocks.insert(0, '\n'.join(lines[2:]))
def apply_markdown(text):
"""
Simple wrapper around :func:`markdown.markdown` to apply our :class:`CustomSetextHeaderProcessor`,
and also set the base level of '#' style headers to <h2>.
"""
extensions = ['headerid(level=2)']
safe_mode = False,
output_format = markdown.DEFAULT_OUTPUT_FORMAT
md = markdown.Markdown(extensions=markdown.load_extensions(extensions),
safe_mode=safe_mode,
output_format=output_format)
md.parser.blockprocessors['setextheader'] = CustomSetextHeaderProcessor(md.parser)
return md.convert(text)
except ImportError:
apply_markdown = None
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