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Commite753ae6

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Add tests for regex replacement with \1 in pg_ident.conf to 0003_peer.pl
Regexp replacement with \1 in pg_ident.conf is tested in one check ofthe kerberos test suite, still it requires a dependency on--with-gssapi to be triggered. This commit adds to the test suite ofpeer authentication two tests to check the replacement of \1 in apg-username, coupled with a system-username regexp:- With a subexpression in system-username, similarly to the kerberostest suite.- Without a subexpression in system-username, checking for a failure.This had no coverage until now, and the error pattern is checked in theserver logs.Author: Jelte FennemaDiscussion:https://postgr.es/m/CAGECzQRNow4MwkBjgPxywXdJU_K3a9+Pm78JB7De3yQwwkTDew@mail.gmail.com
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‎src/test/authentication/t/003_peer.pl

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Original file line numberDiff line numberDiff line change
@@ -141,6 +141,30 @@ sub find_in_log
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[qr/connection authenticated: identity="$system_user" method=peer/]);
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# Success as the regular expression matches and \1 is replaced in the given
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# subexpression.
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reset_pg_ident($node,'mypeermap',qq{/^$system_user(.*)\$},'test\1mapuser');
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test_role(
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$node,
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qq{testmapuser},
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'peer',
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0,
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'with regular expression in user name map with \1 replaced',
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log_like=>
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[qr/connection authenticated: identity="$system_user" method=peer/]);
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# Failure as the regular expression does not include a subexpression, but
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# the database user contains \1, requesting a replacement.
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reset_pg_ident($node,'mypeermap',qq{/^$system_user\$},'\1testmapuser');
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test_role(
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$node,
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qq{testmapuser},
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'peer', 2,
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'with regular expression in user name map with \1 not replaced',
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log_like=> [
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qr/regular expression "\^$system_user\$" has no subexpressions as requested by backreference in "\\1testmapuser"/
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]);
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# Concatenate system_user to system_user.
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$regex_test_string =$system_user .$system_user;
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