DandelionNStuff/dkimpy-smtputf8
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Fix cv=none processing for initial signature in chain

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Scott Kitterman
2019-04-14 22:17:41 -04:00
parent 0ce3775afa
commit aa5419b7d9
2 changed files with 4 additions and 3 deletions
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dkim/__init__.py
+3 -3
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@@ -967,8 +967,7 @@ class ARC(DomainSigner):
parsed_auth_results = AuthenticationResultsHeader.parse('Authentication-Results: ' + auth_results.decode('utf-8'))
arc_results = [res for res in parsed_auth_results.results if res.method == 'arc']
if len(arc_results) == 0:
self.logger.debug("no AR arc stamps found, chain terminated")
return []
chain_validation_status = CV_None
elif len(arc_results) != 1:
self.logger.debug("multiple AR arc stamps found, failing chain")
chain_validation_status = CV_Fail
@@ -1003,7 +1002,8 @@ class ARC(DomainSigner):
if instance == 1 and chain_validation_status != CV_None:
raise ParameterError("No existing chain found on message, cv should be none")
elif instance != 1 and chain_validation_status == CV_None:
raise ParameterError("cv=none not allowed on instance %d" % instance)
self.logger.debug("no previous AR arc results found and instance > 1, chain terminated")
return []
new_arc_set = []
if chain_validation_status != CV_Fail: