# Copyright (c) 2021-2025, PostgreSQL Global Development Group
use strict;
use warnings FATAL => 'all';
use FindBin;
use lib "$FindBin::RealBin/..";
use File::Copy;
use File::Basename;
use LdapServer;
use PostgreSQL::Test::Utils;
use PostgreSQL::Test::Cluster;
use Test::More;
if ($ENV{with_ldap} ne 'yes')
{
plan skip_all => 'LDAP not supported by this build';
}
elsif (!$ENV{PG_TEST_EXTRA} || $ENV{PG_TEST_EXTRA} !~ /\bldap\b/)
{
plan skip_all => 'Potentially unsafe test LDAP not enabled in PG_TEST_EXTRA';
}
elsif (!$LdapServer::setup)
{
plan skip_all => $LdapServer::setup_error;
}
note "setting up LDAP server";
my $ldap_rootpw = 'secret';
my $ldap = LdapServer->new($ldap_rootpw, 'anonymous'); # use anonymous auth
$ldap->ldapadd_file('authdata.ldif');
$ldap->ldapsetpw('uid=test1,dc=example,dc=net', 'secret1');
$ldap->ldapsetpw('uid=test2,dc=example,dc=net', 'secret2');
my ($ldap_server, $ldap_port, $ldaps_port, $ldap_url,
$ldaps_url, $ldap_basedn, $ldap_rootdn
) = $ldap->prop(qw(server port s_port url s_url basedn rootdn));
# don't bother to check the server's cert (though perhaps we should)
$ENV{'LDAPTLS_REQCERT'} = "never";
note "setting up PostgreSQL instance";
my $node = PostgreSQL::Test::Cluster->new('node');
$node->init;
$node->append_conf('postgresql.conf', "log_connections = all\n"); # Needed to allow connect_fails to inspect postmaster log:
$node->append_conf('postgresql.conf', "log_min_messages = debug2");
$node->start;
$node->safe_psql('postgres', 'CREATE USER test0;');
$node->safe_psql('postgres', 'CREATE USER test1;');
$node->safe_psql('postgres', 'CREATE USER "test2@example.net";');
note "running tests";
sub test_access
{
local $Test::Builder::Level = $Test::Builder::Level + 1;
my ($node, $role, $expected_res, $test_name, %params) = @_;
my $connstr = "user=$role";
if ($expected_res eq 0)
{
$node->connect_ok($connstr, $test_name, %params);
} else
{ # No checks of the error message, only the status code.
$node->connect_fails($connstr, $test_name, %params);
}
}
# require_auth=password should complete successfully; other methods should fail.
$node->connect_ok("user=test1 require_auth=password", "password authentication required, works with ldap auth");
$node->connect_fails("user=test1 require_auth=scram-sha-256", "SCRAM authentication required, fails with ldap auth");
$ENV{"PGPASSWORD"} = 'wrong';
test_access($node, 'test0', 2, 'search+bind with LDAP URL authentication fails if user not found in LDAP'
);
test_access($node, 'test1', 2, 'search+bind with LDAP URL authentication fails with wrong password');
$ENV{"PGPASSWORD"} = 'secret1';
test_access($node, 'test1', 0, 'search+bind with LDAP URL authentication succeeds');
# This is not documented: You can combine ldapurl and other ldap* # settings. ldapurl is always parsed first, then the other settings # override. It might be useful in a case like this.
unlink($node->data_dir . '/pg_hba.conf');
$node->append_conf('pg_hba.conf',
qq{local allall ldap ldapurl="$ldap_url/$ldap_basedn??sub" ldapsearchfilter="(|(uid=\$username)(mail=\$username))"}
);
$node->restart;
# note bad ldapprefix with a question mark that triggers a diagnostic message
unlink($node->data_dir . '/pg_hba.conf');
$node->append_conf('pg_hba.conf',
qq{local allall ldap ldapserver=$ldap_server ldapport=$ldap_port ldapprefix="?uid=" ldapsuffix=""}
);
$node->restart;
$ENV{"PGPASSWORD"} = 'secret1';
test_access($node, 'test1', 2, 'any attempt fails due to bad search pattern');
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