feat: tup-706 conditionally serve raw content

taccsite_cms/custom_app_settings.example.py

@@ -1,3 +1,3 @@
 CUSTOM_APPS = ['apps.custom_example']
-CUSTOM_MIDDLEWARE = []
+CUSTOM_MIDDLEWARE = ['taccsite_cms.middleware.cms_template_middleware.CMSTemplateMiddleware']
 STATICFILES_DIRS = ()

taccsite_cms/middleware/cms_template_middleware.py

@@ -0,0 +1,49 @@
+"""Change CMS page template at runtime"""
+import os
+
+from cms.middleware.toolbar import ToolbarMiddleware
+from cms.models.pagemodel import Page as CMS_Page
+
+BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+TEMPLATE_DIR = os.path.join(BASE_DIR, 'templates')
+
+class CMSTemplateMiddleware(ToolbarMiddleware):
+    """
+    Use a different CMS template than is set for the current page
+
+    Usage:
+        http://0.0.0.0:8000/news/?raw
+        http://0.0.0.0:8000/news/?template=raw.html
+        Applies `raw.html` template
+
+        http://0.0.0.0:8000/news/?template=fullwidth.html
+        Applies `fulwidth.html` template
+
+        http://0.0.0.0:8000/news/?template=misspelling.html
+        Raises `TemplateDoesNotExist` error
+
+        http://0.0.0.0:8000/news/?rawng
+        http://0.0.0.0:8000/news/?template
+        http://0.0.0.0:8000/news/?template=s
+        No effect
+    """
+    def __init__(self, get_response):
+        self.get_response = get_response
+
+    def __call__(self, request):
+        if (
+            hasattr(request, 'current_page') and
+            isinstance(request.current_page, CMS_Page)
+        ):
+            page = request.current_page
+            query_params = request.GET
+            query_template = query_params.get('template', '')
+
+            if 'raw' in query_params:
+                page.template = os.path.join(TEMPLATE_DIR, 'raw.html')
+            if query_template.endswith('.html'):
+                page.template = os.path.join(TEMPLATE_DIR, query_template)
+
+        response = self.get_response(request)
+
+        return response