function query($query, $ask = false)
{
global $arc_config;
if (!$arc_config) {
include_once dirname(__FILE__) . '/../arc/ARC2.php';
include_once dirname(__FILE__) . '/../../config/config.php';
}
$store = ARC2::getStore(SMOBTools::arc_config());
if (!$store->isSetUp()) {
$store->setUp();
}
$query = "\n\tPREFIX sioc: <http://rdfs.org/sioc/ns#>\n\tPREFIX sioct: <http://rdfs.org/sioc/types#>\n\tPREFIX foaf: <http://xmlns.com/foaf/0.1/>\n\tPREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>\n\tPREFIX dct: <http://purl.org/dc/terms/>\n\tPREFIX tags: <http://www.holygoat.co.uk/owl/redwood/0.1/tags/>\n\tPREFIX moat: <http://moat-project.org/ns#>\n\tPREFIX opo: <http://online-presence.net/opo/ns#>\n\tPREFIX opo-actions: <http://online-presence.net/opo-actions/ns#>\n\tPREFIX ctag: <http://commontag.org/ns#>\n\tPREFIX smob: <http://smob.me/ns#>\n\tPREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>\n\tPREFIX xsd: <http://www.w3.org/2001/XMLSchema#>\n\tPREFIX rev: <http://purl.org/stuff/rev#>\n\tPREFIX geo: <http://www.w3.org/2003/01/geo/wgs84_pos#>\n\tPREFIX rel: <http://purl.org/vocab/relationship/>\n\n\t\t{$query}";
$rs = $store->query($query);
if ($errors = $store->getErrors()) {
error_log("SMOB SPARQL Error:\n" . join("\n", $errors));
return array();
}
if ($ask) {
return $rs['result'];
} else {
return $rs['result']['rows'];
}
}
error_log("DEBUG: initial RSS file does not exists", 0);
SMOBTools::initial_rss_file();
}
$rssfile = fopen(FEED_FILE_PATH, 'r');
$rss = fread($rssfile, filesize(FEED_FILE_PATH));
fclose($rssfile);
echo $rss;
} elseif ($t == 'rssrdf_owner') {
header("Content-type: text/xml");
$tweet = new SMOBFeed();
$tweet->rssrdf();
} elseif ($t == 'sparql') {
if ($_POST) {
SMOBTools::checkAccess($_POST);
}
$ep = ARC2::getStoreEndpoint(SMOBTools::arc_config());
$ep->go();
// callback script to process the incoming hub POSTs
} elseif ($t == 'callback') {
if (array_key_exists('REMOTE_HOST', $_SERVER)) {
//&& ($_SERVER['REMOTE_HOST'] == HUB_URL_SUBSCRIBE)) {
error_log("DEBUG: request from host: " . $_SERVER['REMOTE_HOST']);
}
if (array_key_exists('HTTP_USER_AGENT', $_SERVER)) {
error_log("DEBUG: request from user_agent: " . $_SERVER['REMOTE_HOST']);
}
// Getting hub_challenge from hub after sending it post subscription
if (isset($_GET["hub_challenge"])) {
// send confirmation to the hub
echo $_GET["hub_challenge"];
error_log("DEBUG: received and sent back hub challenge:" . $_GET["hub_challenge"], 0);
