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Add checks for regexes with user name map in test for peer authentication 

There is already some coverage for that in the kerberos test suite,
though it requires PG_TEST_EXTRA to be set as per its insecure nature.
This provides coverage in a default setup, as long as peer is supported
on the platform where its test is run.

Author: Bertrand Drouvot
Discussion: https://postgr.es/m/7f87ca27-e184-29da-15d6-8be4325ad02e@gmail.com
This commit is contained in:
Michael Paquier 2022-10-17 11:06:00 +09:00
parent d57534740b
commit 7622422b72
1 changed files with 55 additions and 5 deletions
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60
src/test/authentication/t/003_peer.pl
View File

@ -23,18 +23,34 @@ sub reset_pg_hba
return;
}
# Delete pg_ident.conf from the given node, add a new entry to it
# and then execute a reload to refresh it.
sub reset_pg_ident
{
my $node = shift;
my $map_name = shift;
my $system_user = shift;
my $pg_user = shift;
unlink($node->data_dir . '/pg_ident.conf');
$node->append_conf('pg_ident.conf', "$map_name $system_user $pg_user");
$node->reload;
return;
}
# Test access for a single role, useful to wrap all tests into one.
sub test_role
{
local $Test::Builder::Level = $Test::Builder::Level + 1;
my ($node, $role, $method, $expected_res, %params) = @_;
my ($node, $role, $method, $expected_res, $test_details, %params) = @_;
my $status_string = 'failed';
$status_string = 'success' if ($expected_res eq 0);
my $connstr = "user=$role";
my $testname =
"authentication $status_string for method $method, role $role";
"authentication $status_string for method $method, role $role "
. $test_details;
if ($expected_res eq 0)
{
@ -87,16 +103,50 @@ my $system_user =
# Tests without the user name map.
# Failure as connection is attempted with a database role not mapping
# to an authorized system user.
test_role($node, qq{testmapuser}, 'peer', 2,
test_role(
$node, qq{testmapuser}, 'peer', 2,
'without user name map',
log_like => [qr/Peer authentication failed for user "testmapuser"/]);
# Tests with a user name map.
$node->append_conf('pg_ident.conf', qq{mypeermap $system_user testmapuser});
reset_pg_ident($node, 'mypeermap', $system_user, 'testmapuser');
reset_pg_hba($node, 'peer map=mypeermap');
# Success as the database role matches with the system user in the map.
test_role($node, qq{testmapuser}, 'peer', 0,
test_role($node, qq{testmapuser}, 'peer', 0, 'with user name map',
log_like =>
[qr/connection authenticated: identity="$system_user" method=peer/]);
# Test with regular expression in user name map.
# Extract the last 3 characters from the system_user
# or the entire system_user (if its length is <= -3).
my $regex_test_string = substr($system_user, -3);
# Success as the regular expression matches.
reset_pg_ident($node, 'mypeermap', qq{/^.*$regex_test_string\$},
'testmapuser');
test_role(
$node,
qq{testmapuser},
'peer',
0,
'with regular expression in user name map',
log_like =>
[qr/connection authenticated: identity="$system_user" method=peer/]);
# Concatenate system_user to system_user.
$regex_test_string = $system_user . $system_user;
# Failure as the regular expression does not match.
reset_pg_ident($node, 'mypeermap', qq{/^.*$regex_test_string\$},
'testmapuser');
test_role(
$node,
qq{testmapuser},
'peer',
2,
'with regular expression in user name map',
log_like => [qr/no match in usermap "mypeermap" for user "testmapuser"/]);
done_testing();