[Bug 1717615] Re: encoded slashes being blocked by Apache

[Xav Paice]

** Also affects: heat
   Importance: Undecided
       Status: New

** Also affects: cloud-archive
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1717615

Title:
  encoded slashes being blocked by Apache

Status in OpenStack heat charm:
  Triaged
Status in Ubuntu Cloud Archive:
  New
Status in OpenStack Heat:
  New

Bug description:
  We came across a situation where we were unable to view resources in a
  stack inside Horizon. We traced it down to a communication problem
  with the Heat Apache frontend and Heat. After adjusting the log level
  for Apache, we came across the following error in the logs:

  [client 213.173.193.177:33920] AH00026: found %2f (encoded '/') in URI
  (decoded='/v1/c064a39d602d4f42bc49e09057c97683/stacks/heat_test_foo/b5c125a3-d452-49a1-
  a12e-03e098fbb38c/resources/foo_vm-01'), returning 404

  As a workaround, we currently added the following line to the
  /etc/apache/sites-enabled/openstack-https_frontend.conf on our Heat
  instance:

  AllowEncodedSlashes On

  It is worth noting we tried to use the NoDecode option as well and
  that is didn't resolve the problem.

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