On correct active directory login attempts, I am served a HTTPD 500 error and the following in my logs:
[Wed Dec 06 10:51:30.970624 2017] [:error] [pid 3369] [client [redacted]] PHP Notice: Use of undefined constant DB_REPLICA - assumed 'DB_REPLICA' in /usr/share/mediawiki123/extensions/LdapAuthentication/LdapAuthenticationPlugin.php on line 2111, referer: http://[redacted]/index.php/Special:UserLogin [Wed Dec 06 10:51:30.970654 2017] [:error] [pid 3369] [client [redacted]] PHP Notice: Undefined index: DB_REPLICA in /usr/share/mediawiki123/includes/db/LoadBalancer.php on line 591, referer: http://[redacted]/index.php/Special:UserLogin [Wed Dec 06 10:51:30.970661 2017] [:error] [pid 3369] [client [redacted]] PHP Notice: Undefined index: type in /usr/share/mediawiki123/includes/db/LoadBalancer.php on line 720, referer: http://[redacted]/index.php/Special:UserLogin [Wed Dec 06 10:51:30.970972 2017] [:error] [pid 3369] [client [redacted]] PHP Fatal error: Call to a member function setLBInfo() on a non-object in /usr/share/mediawiki123/includes/db/LoadBalancer.php on line 727, referer: http://[redacted]/index.php/Special:UserLogin
On incorrect active directory login attempts, I get the normal incorrect username or password message. Both with a proxy agent and without a proxy agent, I get the same issue. Also, nothing is showing in /tmp/debug.log.
I am running MediaWiki 1.23, PHP 5.4.16, MySQL 5.5.56, and CentOS 7.4.
$wgAuth = new LdapAuthenticationPlugin();
$wgLDAPDomainNames = array('[redacted]');
$wgLDAPServerNames = array('[redacted]' => '[redacted]');
$wgLDAPEncryptionType = array('[redacted]' => 'clear');
$wgLDAPSearchStrings = array('[redacted]' => "USER-NAME@[redacted]" );
$wgLDAPBaseDNs = array('[redacted]' => '[redacted]');
$wgLDAPSearchAttributes = array('[redacted]' => 'samaccountname');
#$wgLDAPProxyAgent = array('[redacted]' => '[redacted]');
#$wgLDAPProxyAgentPassword = array('[redacted]' => '[redacted]');
$wgLDAPDebug = 3;
$wgDebugLogGroups["ldap"] = "/tmp/debug.log";