feat(views): replace utils with views

The `utils` module is a remnant from other Django apps where it
contained additional logic. It now only contains one method for fetching
the imprint. The imprint logic is not used anywhere else, so it can be
part of its own individual view, which is a more Django standardized way
of implementing the imprint functionality.

Closes: #134

apis_acdhch_default_settings/urls.py

@@ -5,7 +5,7 @@
 from django.urls import path
 from django.views.generic import TemplateView
 
-from apis_acdhch_default_settings import utils
+from apis_acdhch_default_settings.views import Imprint
 
 from apis_core.apis_entities.api_views import GetEntityGeneric
 
@@ -25,4 +25,4 @@
     )
 
 urlpatterns.append(path("", TemplateView.as_view(template_name="base.html")))
-urlpatterns.append(path("imprint", TemplateView.as_view(template_name="imprint.html", extra_context={"imprint": utils.get_imprint()}), name="imprint"))
+urlpatterns.append(path("imprint", Imprint.as_view(), name="imprint"))

apis_acdhch_default_settings/views.py

@@ -0,0 +1,29 @@
+import requests
+import os
+from django.views.generic import TemplateView
+from django.views.decorators.cache import cache_page
+from django.utils.decorators import method_decorator
+
+from django.conf import settings
+
+
+@method_decorator(cache_page(60 * 5), name='dispatch')
+class Imprint(TemplateView):
+    template_name = "imprint.html"
+
+    def get_context_data(self) -> str:
+        ctx = super().get_context_data()
+        base_url = getattr(settings, "ACDH_IMPRINT_URL", "https://imprint.acdh.oeaw.ac.at/")
+        redmine_id = getattr(settings, "REDMINE_ID", os.getenv("SERVICE_ID", ""))
+
+        r = requests.get(f"{base_url}{redmine_id}")
+
+        if r and redmine_id:
+            ctx["imprint"] = r.text
+        else:
+            ctx["imprint"] = """
+            One of our services is currently not available. Please try it later or write
+            an email to acdh@oeaw.ac.at; if you are service provider, make sure that you
+            provided ACDH_IMPRINT_URL and REDMINE_ID.
+            """
+        return ctx