Add fallback for uuid retrieval from DF

CURA-11655

plugins/UM3NetworkPrinting/src/Models/Http/CloudClusterWithConfigResponse.py

@@ -2,6 +2,8 @@
 # Cura is released under the terms of the LGPLv3 or higher.
 from typing import Optional, List
 
+import uuid
+
 from .CloudClusterResponse import CloudClusterResponse
 from .ClusterPrinterStatus import ClusterPrinterStatus
 
@@ -11,4 +13,20 @@ class CloudClusterWithConfigResponse(CloudClusterResponse):
 
     def __init__(self, **kwargs) -> None:
         self.configuration = self.parseModel(ClusterPrinterStatus, kwargs.get("host_printer"))
+
+        # Some printers will return a null UUID in the host_printer.uuid field. For those we can fall back using
+        # the host_guid field of the cluster data
+        valid_uuid = False
+        try:
+            parsed_uuid = uuid.UUID(self.configuration.uuid)
+            valid_uuid = parsed_uuid.int != 0
+        except:
+            pass
+
+        if not valid_uuid:
+            try:
+                self.configuration.uuid = kwargs.get("host_guid")
+            except:
+                pass
+
         super().__init__(**kwargs)