wcs: fix make_public_url templatetag used with simple Context (#62460)

combo/apps/wcs/templatetags/wcs.py

@@ -98,9 +98,15 @@ def format_text(field, value):
 def make_public_url(context, url):
     if not url or not is_url_from_known_service(url):
         return url
-    if not context.request.session.session_key:
-        context.request.session.cycle_key()
-    session_key = context.request.session.session_key
+    if hasattr(context, 'request'):
+        request = context.request
+    else:
+        request = context.get('request')
+    if request is None:
+        return url
+    if not request.session.session_key:
+        request.session.cycle_key()
+    session_key = request.session.session_key
     return reverse(
         'wcs-redirect-crypto-url',
         kwargs={

tests/test_wcs.py

@@ -2910,6 +2910,26 @@ def test_card_cell_render_custom_schema_custom_entry(mock_send, context, app):
 
     # test available context
     cell.card_ids = '11'
+    cell.custom_schema = {
+        'cells': [
+            {
+                'varname': '@custom@',
+                'template': 'Foo bar baz {% make_public_url url="http://127.0.0.1:8999/" %}',
+                'display_mode': 'label',
+            },
+        ]
+    }
+    cell.save()
+    resp = app.get(page.get_online_url())
+    assert len(resp.context['cells']) == 1
+    extra_ctx = re.findall(r'data-extra-context="(.*)"', resp.text)
+    cell_url = reverse(
+        'combo-public-ajax-page-cell',
+        kwargs={'page_pk': page.pk, 'cell_reference': cell.get_reference()},
+    )
+    cell_resp = app.get(cell_url + '?ctx=' + extra_ctx[0])
+    assert '/api/wcs/file/' in PyQuery(cell_resp.text).find('.label').text()
+
     cell.custom_schema = {
         'cells': [
             {'varname': '@custom@', 'template': 'Foo bar baz X{{ site_base }}Y', 'display_mode': 'label'},