misc: add feature flag to disable complex data support (#49968)

tests/test_workflows.py

@@ -2270,6 +2270,17 @@ def test_webservice_with_complex_data(http_requests, pub):
         'forloop_items_raw': 'a|b|',
     }
 
+    # check it's possible to disable complex data support
+    pub.load_site_options()
+    pub.site_options.set('options', 'complex-data', 'false')
+
+    with get_publisher().complex_data():
+        item.perform(formdata)
+    assert http_requests.get_last('url') == 'http://remote.example.net'
+    assert http_requests.get_last('method') == 'POST'
+    payload = json.loads(http_requests.get_last('body'))
+    assert payload['items_raw'] == repr(['a', 'b'])
+
 
 def test_timeout(two_pubs):
     workflow = Workflow(name='timeout')

wcs/publisher.py

@@ -386,7 +386,8 @@ class WcsPublisher(StubWcsPublisher):
 
     @contextmanager
     def complex_data(self):
-        self.complex_data_cache = {}
+        if self.has_site_option('complex-data'):
+            self.complex_data_cache = {}
         try:
             yield True
         finally:

wcs/qommon/publisher.py

@@ -368,6 +368,7 @@ class QommonPublisher(Publisher, object):
             'mail-templates': True,
             'external-workflow': True,
             'fields-blocks': True,
+            'complex-data': True,
         }
         if self.site_options is None:
             self.load_site_options()