Fixed #2092: added a "is_secure()" method to HttpRequest which correctly handles the subtleties of mod_python's interaction with os.environ. This one's been bugging me for about a *year*, so many many thanks to k.shaposhnikov@gmail.com for figuring it out, and Tim Shaffer for pointing out this ticket.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@3410 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/admin/views/doc.py

@@ -28,7 +28,7 @@ def bookmarklets(request):
     # Hack! This couples this view to the URL it lives at.
     admin_root = request.path[:-len('doc/bookmarklets/')]
     return render_to_response('admin_doc/bookmarklets.html', {
-        'admin_url': "%s://%s%s" % (os.environ.get('HTTPS') == 'on' and 'https' or 'http', get_host(request), admin_root),
+        'admin_url': "%s://%s%s" % (request.is_secure() and 'https' or 'http', get_host(request), admin_root),
     }, context_instance=RequestContext(request))
 bookmarklets = staff_member_required(bookmarklets)
 

django/core/handlers/modpython.py

@@ -23,6 +23,9 @@ class ModPythonRequest(http.HttpRequest):
     def get_full_path(self):
         return '%s%s' % (self.path, self._req.args and ('?' + self._req.args) or '')
 
+    def is_secure(self):
+        return self._req.subprocess_env.has_key('HTTPS') and self._req.subprocess_env['HTTPS'] == 'on'
+
     def _load_post_and_files(self):
         "Populates self._post and self._files"
         if self._req.headers_in.has_key('content-type') and self._req.headers_in['content-type'].startswith('multipart'):

django/core/handlers/wsgi.py

@@ -66,6 +66,9 @@ class WSGIRequest(http.HttpRequest):
     def get_full_path(self):
         return '%s%s' % (self.path, self.environ.get('QUERY_STRING', '') and ('?' + self.environ.get('QUERY_STRING', '')) or '')
 
+    def is_secure(self):
+        return self.environ.has_key('HTTPS') and self.environ['HTTPS'] == 'on'
+
     def _load_post_and_files(self):
         # Populates self._post and self._files
         if self.method == 'POST':

django/http/__init__.py

@@ -1,3 +1,4 @@
+import os
 from Cookie import SimpleCookie
 from pprint import pformat
 from urllib import urlencode, quote
@@ -38,6 +39,9 @@ class HttpRequest(object):
     def get_full_path(self):
         return ''
         
+    def is_secure(self):
+        return os.environ.get("HTTPS") == "on"
+
 def parse_file_upload(header_dict, post_data):
     "Returns a tuple of (POST MultiValueDict, FILES MultiValueDict)"
     import email, email.Message

django/middleware/common.py

@@ -1,7 +1,7 @@
 from django.conf import settings
 from django import http
 from django.core.mail import mail_managers
-import md5, os
+import md5
 
 class CommonMiddleware(object):
     """
@@ -44,7 +44,7 @@ class CommonMiddleware(object):
         if new_url != old_url:
             # Redirect
             if new_url[0]:
-                newurl = "%s://%s%s" % (os.environ.get('HTTPS') == 'on' and 'https' or 'http', new_url[0], new_url[1])
+                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:

django/views/debug.py

@@ -124,7 +124,7 @@ def technical_500_response(request, exc_type, exc_value, tb):
         'frames': frames,
         'lastframe': frames[-1],
         'request': request,
-        'request_protocol': os.environ.get("HTTPS") == "on" and "https" or "http",
+        'request_protocol': request.is_secure() and "https" or "http",
         'settings': get_safe_settings(),
         'template_info': template_info,
         'template_does_not_exist': template_does_not_exist,
@@ -149,7 +149,7 @@ def technical_404_response(request, exception):
         'urlpatterns': tried,
         'reason': str(exception),
         'request': request,
-        'request_protocol': os.environ.get("HTTPS") == "on" and "https" or "http",
+        'request_protocol': request.is_secure() and "https" or "http",
         'settings': get_safe_settings(),
     })
     return HttpResponseNotFound(t.render(c), mimetype='text/html')

docs/request_response.txt

@@ -150,6 +150,10 @@ Methods
 
    Example: ``"/music/bands/the_beatles/?print=true"``
     
+``is_secure()``
+   Returns ``True`` if the request is secure; that is, if it was made with
+   HTTPS.
+
 QueryDict objects
 -----------------