Move doc_url function out of edxmako middleware

cms/djangoapps/contentstore/context_processors.py

+import ConfigParser
+from django.conf import settings
+
+
+def doc_url(request):
+    config_file = open(settings.REPO_ROOT / "docs" / "config.ini")
+    config = ConfigParser.ConfigParser()
+    config.readfp(config_file)
+
+    # in the future, we will detect the locale; for now, we will
+    # hardcode en_us, since we only have English documentation
+    locale = "en_us"
+
+    def get_doc_url(token):
+        try:
+            return config.get(locale, token)
+        except ConfigParser.NoOptionError:
+            return config.get(locale, "default")
+
+    return {"doc_url": get_doc_url}

cms/envs/common.py

@@ -117,6 +117,7 @@ TEMPLATE_CONTEXT_PROCESSORS = (
     'django.contrib.auth.context_processors.auth',  # this is required for admin
     'django.core.context_processors.csrf',
     'dealer.contrib.django.staff.context_processor',  # access git revision
+    'contentstore.context_processors.doc_url',
 )
 
 # use the ratelimit backend to prevent brute force attacks

common/djangoapps/edxmako/middleware.py

@@ -12,8 +12,6 @@
 #   See the License for the specific language governing permissions and
 #   limitations under the License.
 
-import ConfigParser
-from django.conf import settings
 from django.template import RequestContext
 from util.request import safe_get_host
 requestcontext = None
@@ -26,21 +24,3 @@ class MakoMiddleware(object):
         requestcontext = RequestContext(request)
         requestcontext['is_secure'] = request.is_secure()
         requestcontext['site'] = safe_get_host(request)
-        requestcontext['doc_url'] = self.get_doc_url_func(request)
-
-    def get_doc_url_func(self, request):
-        config_file = open(settings.REPO_ROOT / "docs" / "config.ini")
-        config = ConfigParser.ConfigParser()
-        config.readfp(config_file)
-
-        # in the future, we will detect the locale; for now, we will
-        # hardcode en_us, since we only have English documentation
-        locale = "en_us"
-
-        def doc_url(token):
-            try:
-                return config.get(locale, token)
-            except ConfigParser.NoOptionError:
-                return config.get(locale, "default")
-
-        return doc_url