+class SignatureTimestampCheck(Check):
+ """Check timestamp of .changes signature"""
+ def check(self, upload):
+ changes = upload.changes
+
+ now = datetime.datetime.utcnow()
+ timestamp = changes.signature_timestamp
+ age = now - timestamp
+
+ age_max = datetime.timedelta(days=365)
+ age_min = datetime.timedelta(days=-7)
+
+ if age > age_max:
+ raise Reject('{0}: Signature from {1} is too old (maximum age is {2} days)'.format(changes.filename, timestamp, age_max.days))
+ if age < age_min:
+ raise Reject('{0}: Signature from {1} is too far in the future (tolerance is {2} days)'.format(changes.filename, timestamp, abs(age_min.days)))
+
+ return True
+