This function is designed to retrieve a value from an
ini-like file. In particular PKI CS.cfg.
In an attempt to be more efficient a substring search,
using startswith(), is used before calling a regular
expression match.
The problem is that if the requested directive is a
substring of a different one then it will pass the
startswith() and fail the regular expression match
with a ValueError, assuming it is malformed.
There is no need for this. The caller must be able to
handle None as a response anyway. So continue if
no match is found.
This was seen when PKI dropped storing certificate blobs
in CS.cfg. The CA certificate is stored in ca.signing.cert.
If it isn't present then ca.signing.certnickname will match
the substring but not the directive. This should not be
treated as an error.
Fixes: https://pagure.io/freeipa/issue/9506
Signed-off-by: Rob Crittenden <rcritten@redhat.com>
Reviewed-By: Florence Blanc-Renaud <flo@redhat.com>
Rob Crittenden
Christian Heimes
Stanislav Laznicka