Add support for UX reference templates in LMS

lms/djangoapps/debug/views.py

@@ -3,7 +3,7 @@
 import pprint
 import traceback
 
-from django.http import Http404, HttpResponse
+from django.http import Http404, HttpResponse, HttpResponseNotFound
 from django.contrib.auth.decorators import login_required
 from django.utils.html import escape
 
@@ -12,6 +12,8 @@ from edxmako.shortcuts import render_to_response
 
 from codejail.safe_exec import safe_exec
 
+from mako.exceptions import TopLevelLookupException
+
 
 @login_required
 @ensure_csrf_cookie
@@ -43,3 +45,18 @@ def show_parameters(request):
     for name, value in sorted(request.POST.items()):
         html.append(escape("POST {}: {!r}".format(name, value)))
     return HttpResponse("\n".join("<p>{}</p>".format(h) for h in html))
+
+
+def show_reference_template(request, template):
+    """
+    Shows the specified template as an HTML page. This is used only in debug mode to allow the UX team
+    to produce and work with static reference templates.
+    e.g. /template/ux/reference/container.html shows the template under ux/reference/container.html
+
+    Note: dynamic parameters can also be passed to the page.
+    e.g. /template/ux/reference/container.html?name=Foo
+    """
+    try:
+        return render_to_response(template, request.GET.dict())
+    except TopLevelLookupException:
+        return HttpResponseNotFound("Couldn't find template {template}".format(template=template))