publications: Add XML feed for last publications

config/urls.py

@@ -14,6 +14,7 @@
 from mpicms.base.api import api_router
 from mpicms.personal.views import ContactListView, RawContactListView
 from mpicms.events.views import ics_view
+from mpicms.publications.views import PublicationsFeedView
 
 
 urlpatterns = [
@@ -46,7 +47,8 @@
     path('contacts/', ContactListView.as_view(), name='contacts'),
     path('contactsraw/', RawContactListView.as_view(), name='contactsraw'),
 
-    path('events/ics', ics_view, name='ics')
+    path('events/ics', ics_view, name='ics'),
+    path('feed/last_publications', PublicationsFeedView.as_view()),
 ] + static(
     settings.MEDIA_URL, document_root=settings.MEDIA_ROOT
 )

mpicms/publications/views.py

@@ -0,0 +1,29 @@
+from django.http import HttpResponse
+from django.views.generic.base import View
+
+from .models import Publication
+
+class PublicationsFeedView(View):
+
+    # 2DO: check for legal XML characters everywhere https://www.w3.org/TR/xml/#NT-Char
+    # 2DO: Put HTML content in <![CDATA[...]]> ?
+    # If we don't make DOI into element:
+    #   2DO: escape invalid characterds in attribute ( &quot; &amp; &lt; )
+    # If we don't convert the rich text fields to plain text)
+    #    2DO: Remove editor artefacts from ricch text fields ("<p>blabla</p>") ?
+    #    2DO: Remove <i> from source fields ("<p><i>Mol Cell.</i></p>") ?
+    # maybe use xml.dom for that?
+
+    def get(self, request, *args, **kwargs):
+        response = HttpResponse(content_type="application/rss+xml; charset=utf-8")
+        response.write('<?xml version="1.0" encoding="utf-8" ?>\n')
+        response.write('<publication-list>\n')
+        for item in Publication.objects.order_by('sort_order')[:3]:
+            response.write(f'  <publication doi="{item.doi}">\n')
+            response.write(f'    <authors>{item.authors}</authors>\n');
+            response.write(f'    <title>{item.title}</title>\n');
+            response.write(f'    <source>{item.source}</source>\n');
+            response.write(f'    <groups>{item.groups}</groups>\n');
+            response.write('  </publication>\n')
+        response.write('</publication-list>\n')
+        return response;