Fixed issue with null date for large values not having filetime

Author: TheElementalOfDestruction

extract_msg/utils.py

@@ -296,6 +296,7 @@ def filetimeToDatetime(rawTime: int) -> datetime.datetime:
             from .null_date import NullDate
             date = NullDate(1970, 1, 1, 1)
             date += datetime.timedelta(seconds = filetimeToUtc(rawTime))
+            date.filetime = rawTime
 
             return date
         else:
@@ -304,7 +305,7 @@ def filetimeToDatetime(rawTime: int) -> datetime.datetime:
         # For TZError we just raise it again. It is a fatal error.
         raise
     except Exception:
-        raise ValueError(f'Timestamp value of {filetimeToUtc(rawTime)} caused an exception. This was probably caused by the time stamp being too far in the future.')
+        raise ValueError(f'Timestamp value of {filetimeToUtc(rawTime)} (raw: {rawTime}) caused an exception. This was probably caused by the time stamp being too far in the future.')
 
 
 def filetimeToUtc(inp: int) -> float:

extract_msg_tests/prop_tests.py

@@ -197,6 +197,16 @@
         PropertyFlags.MANDATORY,
         NULL_DATE
     ),
+    (
+        'Null Time 3',
+        b'\x40\x00\x01\x02\x01\x00\x00\x00\x00\x3F\xDD\xA3\x57\x45\xB3\x0C',
+        b'\x40\x00\x01\x02\x01\x00\x00\x00\x00\x3F\xDD\xA3\x57\x45\xB3\x0C',
+        FixedLengthProp,
+        '02010040',
+        0x0040,
+        PropertyFlags.MANDATORY,
+        NULL_DATE
+    ),
     # Variable Length Props.
     (
         'Object',