[jira] [Created] (TS-4351) FetchSM shouldn't expose unprotected response headers

["Masakazu Kitajo (JIRA)" <ji...@apache.org>]

Masakazu Kitajo created TS-4351:
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             Summary: FetchSM shouldn't expose unprotected response headers
                 Key: TS-4351
                 URL: https://issues.apache.org/jira/browse/TS-4351
             Project: Traffic Server
          Issue Type: Improvement
          Components: Cleanup
            Reporter: Masakazu Kitajo


{{FetchSM}} exposes a member variable {{HTTPHdr client_response_hdr}} and anybody can modify headers in it. However, such modification breaks {{FetchSM}}'s internal state, and it results unexpected behavior.

To avoid such modification, {{client_response_hdr}} shouldn't be exposed directly and {{FetchSM}} should have a getter which returns the headers with {{const}} modifier.

It sounds easy but we need to fix an other issue (TS-4350) first, because operations against {{const HTTPHdr}} are limited unreasonably.



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