CBS Auth errors when trying to use a SAS token without a se= stanza

[KieranBrantnerMagee]

• UAMQP Package Version:
  latest
• Operating System:
  all
• Python Version:
  all

Describe the bug
Utilize a SAS token lacking a &se= stanza. Observe the following error:
E uamqp.errors.TokenAuthFailure: CBS Token authentication failed.
E Status code: 500
E Description: The service was unable to process the request; please retry the operation. For more information on exception types and proper exception handling, please refer to http://go.microsoft.com/fwlink/?LinkId=761101

To Reproduce
Steps to reproduce the behavior:

1. Generate a SAS token as observed in this Service Bus test
2. Try to authenticate/send/do any operation

Expected behavior
Should succeed to authenticate.

[yunhaoling]

Closing this issue now, the summary is as bellow:

Based on

• The MS doc on how to generate a SAS token: https://docs.microsoft.com/en-us/rest/api/eventhub/generate-sas-token
• The implementation in uamqp-c on how to generate SAS token:

  azure-uamqp-python/src/vendor/azure-uamqp-c/deps/azure-c-shared-utility/src/sastoken.c

  Line 205 in ccc9c82

  static STRING_HANDLE construct_sas_token(const char* key, const char* scope, const char* keyname, size_t expiry)

We conclude that "se=" is required scope for a sas token and the expiry information is included in the token string to be hashed.

[yunhaoling]

new action item for you @KieranBrantnerMagee: we may need to remove the optionality in SB.