Commits on Aug 17, 2021

1. Caching: Fix race …

   When caching is disabled with none, the cache key can be in there, and a
   race condition can be happend with this.
   
   To test this:
   
   1) Strict caching mode
   2) Made a request, 200 OK cache.set("$KEY", 200)
   3) Update config to none
   4) apicast/proxy:authorize -> cache.get($KEY) is 200
   5) request go to the API
   6) Authrep, cache for $KEY is deleted.
   
   Next request will return 403.
   
   Fixed behaviour:
   
   1) Strict caching mode
   2) Made a request, 200 OK cache.set("$KEY", 200)
   3) Update config to none
   4) apicast/proxy:authorize -> cache.get($KEY) is 200
   5) cache_is_disabled = true -> execute backend call.
   5) request go to the API, and fails
   6) Authrep, cache for $KEY is deleted.
   
   Fix THREESCALE-4464
   
   Signed-off-by: Eloy Coto <eloy.coto@acalustra.com>

   

   eloycoto committed Aug 17, 2021
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