59 lines
2.7 KiB
Python
59 lines
2.7 KiB
Python
from builtins import object
|
|
from future.utils import raise_
|
|
from django import http
|
|
from django.conf import settings
|
|
from django.utils.cache import patch_response_headers
|
|
|
|
class ForceCanonicalHostnameMiddleware(object):
|
|
|
|
def process_request(self, request):
|
|
"""Modified common middleware for Conservancy site
|
|
|
|
* Performs redirects to strip trailing "index.html"
|
|
* performs redirects based on APPEND_SLASH
|
|
* performs redirects based on site-specific REDIRECT_TABLE
|
|
* adds cache headers to provide hints to squid
|
|
"""
|
|
|
|
# Never allow connection to the /admin part of the site without SSL
|
|
if (not request.is_secure) and request.path.startswith('/admin'):
|
|
url = 'https://sfconservancy.org%s' % request.path
|
|
return http.HttpResponseRedirect(url)
|
|
|
|
# Check for a redirect based on settings.APPEND_SLASH
|
|
host = request.get_host()
|
|
old_url = [host, request.path]
|
|
new_url = old_url[:]
|
|
# Append a slash if append_slash is set and the URL doesn't have a
|
|
# trailing slash or a file extension.
|
|
if settings.APPEND_SLASH and (old_url[1][-1] != '/') and ('.' not in old_url[1].split('/')[-1]):
|
|
new_url[1] = new_url[1] + '/'
|
|
if settings.DEBUG and request.method == 'POST':
|
|
raise_(RuntimeError, "You called this URL via POST, but the URL doesn't end in a slash and you have APPEND_SLASH set. Django can't redirect to the slash URL while maintaining POST data. Change your form to point to %s%s (note the trailing slash), or set APPEND_SLASH=False in your Django settings." % (new_url[0], new_url[1]))
|
|
# Strip trailing index.html
|
|
if new_url[1].endswith('/index.html'):
|
|
new_url[1] = new_url[1][:new_url[1].rfind('index.html')]
|
|
# Consult redirect table (if exists)
|
|
if hasattr(settings, "REDIRECT_TABLE"):
|
|
if new_url[1] in settings.REDIRECT_TABLE:
|
|
new_url[1] = settings.REDIRECT_TABLE[new_url[1]]
|
|
if new_url != old_url:
|
|
# Force canonical hostname
|
|
if settings.FORCE_CANONICAL_HOSTNAME:
|
|
new_url[0] = settings.FORCE_CANONICAL_HOSTNAME
|
|
# Redirect
|
|
if new_url[0]:
|
|
newurl = "%s://%s%s" % (request.is_secure() and 'https' or 'http', new_url[0], new_url[1])
|
|
else:
|
|
newurl = new_url[1]
|
|
if request.GET:
|
|
newurl += '?' + request.GET.urlencode()
|
|
return http.HttpResponseRedirect(newurl)
|
|
|
|
return None
|
|
|
|
def process_response(self, request, response):
|
|
# provide hints to squid
|
|
if request.method in ('GET', 'HEAD') and response.status_code == 200:
|
|
patch_response_headers(response)
|
|
return response
|