function execute($par)
{
global $wgOut, $wgScriptPath, $wgRequest;
$wgOut->addScriptFile("{$wgScriptPath}/extensions/metasearch/proxy.js");
$cat_stack = new MsCategoryStack($wgRequest->getArray('ms-cat'));
/// TODO: Copied from QueryPage
if ($cat_stack->get_top()->is_root()) {
throw new MsException("Cat stack is {$cat_stack}. Please select a category", MsException::BAD_INPUT);
} else {
if (!$cat_stack->get_top()->has_databases()) {
throw new MsException('Please select a category that has databases!', MsException::BAD_INPUT);
}
}
// get "the" database
if ($wgRequest->getVal('ms-db')) {
$database = new MsDatabase($wgRequest->getVal('ms-db'));
} else {
$database = $cat_stack->get_top()->get_one_database(MsCategory::AS_OBJECTS);
}
if (!$database) {
throw new MsException("No db in top cat of {$cat_stack} / ms-db param");
}
// verify that we've got some 'proxydriver' type driver.
// We cannot handle other drivers!
if (!$database->is_driver_type('proxydriver')) {
throw new MsException("MsProxyPage can only handle 'proxydriver' databases. " . "Unfortunately [{$database}] is not such a database.", MsException::BAD_INSTALLATION);
}
// Load common proxy engine configuration
// (for proxify, etc.)
$proxy_conf = MsProxyConfiguration::get_instance();
// Get values for the template:
$start_url = $database->get('start_url');
if (!$start_url) {
throw new MsException("start_url field missing in config for {$database}!", MsException::BAD_CONFIGURATION);
}
$template = new MsProxyTemplate();
# eigentlich unnoetig:
#$template->set_from_array($this->database->conf);
$template->set('assistant_text', wfMsg('ms-assistant-starting-bla'));
$template->set('assistant_msg', 'ms-assistant-happy');
$template->set('iframe_start', $proxy_conf->proxify($start_url));
# das ist jetzt eher quick & dirty, aber den cat_stack brauch dann keiner mehr:
$cat_stack->pop();
# poppen fuer catchooser_link (damit der catchooser nicht direkt zur cat leitet)
$template->set('leave_biokemika_link', '#');
$template->set('catchooser_link', $this->special_page->get_sub_title('choose')->escapeFullURL(str_replace('[]', '%5B%5D', $cat_stack->build_query('ms-cat'))));
//print $template->get('iframe_start');exit();
$wgOut->addTemplate($template);
}
