Fix #453

Author: TheElementalOfDestruction

CHANGELOG.md

@@ -1,5 +1,6 @@
 **v0.53.2**
 * [[TeamMsgExtractor #452](https://github.com/TeamMsgExtractor/msg-extractor/issues/452)] Adjusted code to allow html encoding to be cached to try to speed up `bs4` operations.
+* [[TeamMsgExtractor #453](https://github.com/TeamMsgExtractor/msg-extractor/issues/453)] Fixed handler for too large filetimes so that some filetimes being too large doesn't break the handler.
 * Fixed a bug that would cause an error in task objects due to a lack of `enumerate`.
 * Fix `TOCEntry` not initializing `DVTargetDevice` correctly.
 * Add temporary properties for `ContentID` to `SignedAttachment`. AFAIK these can't ever be set, but this prevents errors in some places.

extract_msg/__init__.py

@@ -27,7 +27,7 @@
 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 __author__ = 'Destiny Peterson & Matthew Walker'
-__date__ = '2025-03-13'
+__date__ = '2025-03-14'
 __version__ = '0.53.2'
 
 __all__ = [

extract_msg/utils.py

@@ -295,7 +295,14 @@ def filetimeToDatetime(rawTime: int) -> datetime.datetime:
             # Just make null dates from all of these time stamps.
             from .null_date import NullDate
             date = NullDate(1970, 1, 1, 1)
-            date += datetime.timedelta(seconds = filetimeToUtc(rawTime))
+            try:
+                date += datetime.timedelta(seconds = filetimeToUtc(rawTime))
+            except OverflowError:
+                # Time value is so large we physically can't represent it, so
+                # let's just modify the date to it's highest possible value and
+                # call it a day.
+                m = date.max
+                date = NullDate(m.year, m.month, m.day, m.hour, m.minute, m.second, m.microsecond)
             date.filetime = rawTime
 
             return date

extract_msg_tests/prop_tests.py

@@ -207,6 +207,16 @@
         PropertyFlags.MANDATORY,
         NULL_DATE
     ),
+    (
+        'Null Time 4',
+        b'\x40\x00\x1C\x30\x06\x00\x00\x00\xff\xff\xff\xff\xff\xff\xff\x7f',
+        b'\x40\x00\x1C\x30\x06\x00\x00\x00\xff\xff\xff\xff\xff\xff\xff\x7f',
+        FixedLengthProp,
+        '301C0040',
+        0x0040,
+        PropertyFlags.READABLE | PropertyFlags.WRITABLE,
+        NULL_DATE
+    ),
     # Variable Length Props.
     (
         'Object',