+function checkMirror($action_obj)
+{
+ global $config;
+
+ static $alwaysRW = array('session', 'remember_me');
+
+ if (common_config('db', 'mirror') && $action_obj->isReadOnly($args)) {
+ if (is_array(common_config('db', 'mirror'))) {
+ // "load balancing", ha ha
+ $arr = common_config('db', 'mirror');
+ $k = array_rand($arr);
+ $mirror = $arr[$k];
+ } else {
+ $mirror = common_config('db', 'mirror');
+ }
+
+ // We ensure that these tables always are used
+ // on the master DB
+
+ $config['db']['database_rw'] = $config['db']['database'];
+ $config['db']['ini_rw'] = INSTALLDIR.'/classes/laconica.ini';
+
+ foreach ($alwaysRW as $table) {
+ $config['db']['table_'.$table] = 'rw';
+ }
+
+ // everyone else uses the mirror
+
+ $config['db']['database'] = $mirror;
+ }
+}
+
+function isLoginAction($action)
+{
+ static $loginActions = array('login', 'openidlogin', 'finishopenidlogin',
+ 'recoverpassword', 'api', 'doc', 'register');
+
+ $login = null;
+
+ if (Event::handle('LoginAction', array($action, &$login))) {
+ $login = in_array($action, $loginActions);
+ }
+
+ return $login;
+}
+