Add a new page for pending preprint moderation

Author: Vlad0n20

osf/models/preprint.py

@@ -695,6 +695,24 @@ def is_preprint_orphan(self):
     def has_submitted_preprint(self):
         return self.machine_state != DefaultStates.INITIAL.value
 
+    @property
+    def is_pending_moderation(self):
+        if self.machine_state == DefaultStates.INITIAL.value:
+            return False
+
+        if not self.provider or not self.provider.reviews_workflow:
+            return False
+
+        from api.providers.workflows import PUBLIC_STATES
+
+        workflow = self.provider.reviews_workflow
+        public_states = PUBLIC_STATES.get(workflow, [])
+
+        if self.machine_state not in public_states:
+            return True
+
+        return False
+
     @property
     def deep_url(self):
         # Required for GUID routing

website/routes.py

@@ -257,6 +257,17 @@ def ember_app(path=None):
                         preprint = Preprint.load(guid_str)
                         if preprint and preprint._id != guid_str:
                             return redirect(f"{settings.DOMAIN}preprints/{path_values[0]}/{preprint._id}", code=302)
+                        if preprint:
+                            from framework.auth import Auth
+                            auth = Auth.from_kwargs(request.args.to_dict(), {})
+                            if not preprint.can_view(auth):
+                                if getattr(preprint, 'is_pending_moderation', True):
+                                    renderer = OsfWebRenderer('pending_moderation.mako', trust=False)
+                                    return renderer({
+                                        'resource_type': (preprint.provider.preprint_word or 'preprint') if preprint.provider else 'preprint',
+                                        'provider_name': preprint.provider.name if preprint.provider else 'OSF',
+                                    })
+                                raise HTTPError(http_status.HTTP_404_NOT_FOUND)
                 # For all other cases, let ember app handle it
                 ember_app = EXTERNAL_EMBER_APPS.get('ember_osf_web', False) or ember_app
             break