[Bug 1711573] Please test proposed package

[James Page]

Hello Adam, or anyone else affected,

Accepted python-oslo.middleware into pike-proposed. The package will
build now and be available in the Ubuntu Cloud Archive in a few hours,
and then in the -proposed repository.

Please help us by testing this new package. To enable the -proposed
repository:

  sudo add-apt-repository cloud-archive:pike-proposed
  sudo apt-get update

Your feedback will aid us getting this update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, and change the tag
from verification-pike-needed to verification-pike-done. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-pike-failed. In either case, details of your testing
will help us make a better decision.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification . Thank you in
advance!

** Changed in: cloud-archive/pike
       Status: Triaged => Fix Committed

** Tags added: verification-pike-needed

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https://bugs.launchpad.net/bugs/1711573

Title:
  Invalid parsing of Forwarded header (RFC7239)

Status in Ubuntu Cloud Archive:
  Fix Committed
Status in Ubuntu Cloud Archive ocata series:
  Triaged
Status in Ubuntu Cloud Archive pike series:
  Fix Committed
Status in oslo.middleware:
  Fix Released
Status in python-oslo.middleware package in Ubuntu:
  Fix Released
Status in python-oslo.middleware source package in Zesty:
  Triaged
Status in python-oslo.middleware source package in Artful:
  Fix Released

Bug description:
  >>> from oslo_middleware.http_proxy_to_wsgi import HTTPProxyToWSGI
  >>> HTTPProxyToWSGI._parse_rfc7239_header("for=192.0.2.60;proto=http, for=192.0.2.60;by=203.0.113.43")
  [{'for': '192.0.2.60', 'proto': 'http'}, {' for': '192.0.2.60', 'by': '203.0.113.43'}]
  >>>
  >>> HTTPProxyToWSGI._parse_rfc7239_header("for=192.0.2.60; proto=http, for=192.0.2.60; by=203.0.113.43")
  [{' proto': 'http', 'for': '192.0.2.60'}, {' for': '192.0.2.60', ' by': '203.0.113.43'}]

  According to some sources:
  https://en.wikipedia.org/wiki/X-Forwarded-For#Alternatives_and_variations
  https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Forwarded

  using space after semicolon in Forwarded header is valid, but
  _parse_rfc7239_header does not parse it properly: note spaces in keys
  in the dict above.

  This affects e.g. Heat when using a proxy+SSL.

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