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4 Commits

Author SHA1 Message Date
Remi Tricot-Le Breton
6ca89162dc MINOR: cache: Do not store responses with an unknown encoding 
If a server varies on the accept-encoding header and it sends a response
with an encoding we do not know (see parse_encoding_value function), we
will not store it. This will prevent unexpected errors caused by
cache collisions that could happen in accept_encoding_hash_cmp.
 2021-01-15 22:33:05 +01:00
Tim Duesterhus
dc38bc4a1a BUG/MEDIUM: cache: Fix hash collision in accept-encoding handling for Vary 
This patch fixes GitHub Issue #988. Commit ce9e7b25217c46db1ac636b2c885a05bf91ae57e
was not sufficient, because it fell back to a hash comparison if the bitmap
of known encodings was not acceptable instead of directly returning the the
cached response is not compatible.

This patch also extends the reg-test to test the hash collision that was
mentioned in #988.

Vary handling is 2.4, no backport needed.
 2020-12-31 09:39:08 +01:00
Remi Tricot-Le Breton
e6cc5b5974 MINOR: cache: Replace the "process-vary" option's expected values 
Replace the <0/1> expected values of the process-vary option by a more
usual <on/off> pair.
 2020-12-24 17:18:00 +01:00
Remi Tricot-Le Breton
14df1e1526 REGTESTS: cache: Add a specific test for the accept-encoding normalizer 
Those tests check the explicit support of a subset of encodings added to
the accept-encoding normalizer.
 2020-12-24 17:18:00 +01:00