+function main()
+{
+ global $user, $action, $config;
+
+ if (!_have_config()) {
+ $msg = sprintf(_("No configuration file found. Try running ".
+ "the installation program first."));
+ $sac = new ServerErrorAction($msg);
+ $sac->showPage();
+ return;
+ }
+
+ // For database errors
+
+ PEAR::setErrorHandling(PEAR_ERROR_CALLBACK, 'handleError');
+
+ // XXX: we need a little more structure in this script
+
+ // get and cache current user
+
+ $user = common_current_user();
+
+ // initialize language env
+
+ common_init_language();
+
+ $path = getPath($_REQUEST);
+
+ $r = Router::get();
+
+ $args = $r->map($path);
+
+ if (!$args) {
+ $cac = new ClientErrorAction(_('Unknown page'), 404);
+ $cac->showPage();
+ return;
+ }
+
+ $args = array_merge($args, $_REQUEST);
+
+ $action = $args['action'];
+
+ if (!$action || !preg_match('/^[a-zA-Z0-9_-]*$/', $action)) {
+ common_redirect(common_local_url('public'));
+ return;
+ }
+
+ // If the site is private, and they're not on one of the "public"
+ // parts of the site, redirect to login
+
+ if (!$user && common_config('site', 'private') &&
+ !in_array($action, array('login', 'openidlogin', 'finishopenidlogin',
+ 'recoverpassword', 'api', 'doc', 'register'))) {
+ common_redirect(common_local_url('login'));
+ return;
+ }
+
+ $action_class = ucfirst($action).'Action';
+
+ if (!class_exists($action_class)) {
+ $cac = new ClientErrorAction(_('Unknown action'), 404);
+ $cac->showPage();
+ } else {
+ $action_obj = new $action_class();
+
+ // XXX: find somewhere for this little block to live
+
+ if (common_config('db', 'mirror') && $action_obj->isReadOnly()) {
+ 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');
+ }
+ $config['db']['database'] = $mirror;
+ }
+
+ try {
+ if ($action_obj->prepare($args)) {
+ $action_obj->handle($args);
+ }
+ } catch (ClientException $cex) {
+ $cac = new ClientErrorAction($cex->getMessage(), $cex->getCode());
+ $cac->showPage();
+ } catch (ServerException $sex) { // snort snort guffaw
+ $sac = new ServerErrorAction($sex->getMessage(), $sex->getCode());
+ $sac->showPage();
+ } catch (Exception $ex) {
+ $sac = new ServerErrorAction($ex->getMessage());
+ $sac->showPage();
+ }
+ }