Fix TraceState to adhere to specs - #1502
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…ry-python into trace-state-fix
| A string that adheres to the w3c tracestate | ||
| header format. | ||
| """ | ||
| return ",".join(key + "=" + value for key, value in self._dict.items()) |
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Im not super familiar with the tracestate spec; do we need some escaping in the values here?
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From W3C Trace Context spec
The value is an opaque string containing up to 256 printable ASCII characters (i.e., the range 0x20 to 0x7E) except comma (,) and (=).
If I understand it correctly we don't need to do any escaping as this header will be ASCII only which is totally fine with HTTP Headers.
| # empty members are valid, but no need to process further. | ||
| if not member: | ||
| continue | ||
| match = _MEMBER_PATTERN.fullmatch(member) |
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We have util like _is_valid_pair(), why not have a is_valid_member()?
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All the mutation operations on trace state should validate the key/value. The member would be in format of key=value. If we go with is_valid_member() we will have construct member from key/value params. If we stick with is_valid_pair we need to split the member from header to give pair. Either way would be fine.
| _DELIMITER_PATTERN, | ||
| _MEMBER_PATTERN, | ||
| _TRACECONTEXT_MAXIMUM_TRACESTATE_KEYS, | ||
| _is_valid_pair, |
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These imports shouldn't be named with underscore prefixes right?
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I think these are for internal use and should have leading underscore. Ideally users should only rely on TraceState and inject/extract API.
Co-authored-by: Aaron Abbott <aaronabbott@google.com>
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@lonewolf3739 |
Done. |
3 participants
Description
Fixes #1487
Type of change
Please delete options that are not relevant.
How Has This Been Tested?
tox -e test-core-apitox -e test-core-sdkDoes This PR Require a Contrib Repo Change?
Checklist: