Handle unknown properties in report XML gracefully

CHANGELOG.rst

@@ -6,6 +6,17 @@ All notable changes to this project will be documented in this file.
 The format is based on `Keep a Changelog <https://keepachangelog.com/en/1.0.0/>`_,
 and this project adheres to `Semantic Versioning <https://semver.org/spec/v2.0.0.html>`_.
 
+[0.9.3] - unreleased
+--------------------
+
+Fixed
+^^^^^
+
+* Gracefully handle unknown properties within report XML. In particular, this
+  should allow to process reports send by Google again, which was not working
+  anymore starting June 2023.
+
+
 [0.9.2] - 2023-06-30
 --------------------
 

dmarc_metrics_exporter/deserialization.py

@@ -7,6 +7,7 @@
 from zipfile import ZipFile
 
 from xsdata.formats.dataclass.context import XmlContext
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 from xsdata.formats.dataclass.parsers.xml import XmlParser
 
 from dmarc_metrics_exporter.dmarc_event import (
@@ -49,7 +50,9 @@ def handle_text_xml(content: str) -> Generator[str, None, None]:
 def get_aggregate_report_from_email(
     msg: EmailMessage,
 ) -> Generator[Feedback, None, None]:
-    parser = XmlParser(context=XmlContext())
+    parser = XmlParser(
+        context=XmlContext(), config=ParserConfig(fail_on_unknown_properties=False)
+    )
     has_found_a_report = False
     for part in msg.walk():
         if part.get_content_type() in content_type_handlers:

dmarc_metrics_exporter/model/tests/sample_data.py

@@ -22,6 +22,7 @@ def create_sample_xml(*, report_id: str = "12598866915817748661") -> str:
     <p>none</p>
     <sp>none</sp>
     <pct>100</pct>
+    <np>none</np>
   </policy_published>
   <record>
     <row>

dmarc_metrics_exporter/model/tests/test_deserialization.py

@@ -1,11 +1,14 @@
 from xsdata.formats.dataclass.context import XmlContext
 from xsdata.formats.dataclass.parsers import XmlParser
+from xsdata.formats.dataclass.parsers.config import ParserConfig
 
 from dmarc_metrics_exporter.model.dmarc_aggregate_report import Feedback
 
 from .sample_data import SAMPLE_DATACLASS, create_sample_xml
 
 
 def test_deserialization():
-    parser = XmlParser(context=XmlContext())
+    parser = XmlParser(
+        context=XmlContext(), config=ParserConfig(fail_on_unknown_properties=False)
+    )
     assert parser.from_string(create_sample_xml(), Feedback) == SAMPLE_DATACLASS