public function get()
{
if (parent::get() !== false) {
$s = file_get_contents(APPLICATION_PATH . "/apiroutes.xml");
$s = str_replace("/:version/", "/" . RestAPIHelper::VERSION . "/", $s);
$s = str_replace("\t", "", $s);
$s = preg_replace('/>\\s+/', '>', $s);
$s = preg_replace('/<\\s+/', '<', $s);
$xslt = RestAPIHelper::getFolder(RestFolderEnum::FE_XSL_FOLDER) . "/apiroutes.xsl";
$xsl = new DOMDocument();
$xsl->load($xslt);
$xml = new DOMDocument();
$xml->loadXML($s, LIBXML_NSCLEAN | LIBXML_COMPACT);
$proc = new XSLTProcessor();
$proc->registerPHPFunctions();
$proc->importStylesheet($xsl);
$s = $proc->transformToXml($xml);
$xml = new SimpleXMLElement($s);
$xml->registerXPathNamespace('appdb', 'http://appdb.egi.eu/api/' . RestAPIHelper::VERSION . '/appdb');
$x = $xml->xpath("//appdb:resource");
$s = array();
while (list(, $node) = each($x)) {
$s[] = trim($node->asXML());
}
$this->_pageOffset = 0;
$this->_pageLength = count($s);
$this->_total = count($s);
$s = RestAPIHelper::wrapResponse($s, "resource", "list", count($s));
return new XMLRestResponse($s, $this);
} else {
return false;
}
}
private function getRecord($id, $prefix)
{
if ($id == "" || $prefix == "") {
return $this->getError("badArgument", "The request is missing required arguments");
} else {
if ($prefix == "oa_dc") {
if (substr($id, 0, 17) == "oai:appdb.egi.eu:") {
$item = substr($id, 17);
while (substr($item, 0, 1) == "/") {
$item = substr($item, 1);
}
$items = explode("/", $item);
$resource = $items[0];
$itemid = $items[1];
switch ($resource) {
case "applications":
$res = new RestAppItem(array("id" => $itemid));
break;
case "people":
$res = new RestPplItem(array("id" => $itemid));
break;
default:
return $this->buildResponse($this->getError("badArgument", "Requested invalid resource"), "GetRecord", $prefix);
}
debug_log("[OaiController::getRecord]: Getting " . "http://" . $_SERVER["APPLICATION_API_HOSTNAME"] . "/rest/latest/{$item}");
$res = strval($res->get());
$res = $this->buildResponse($res, "GetRecord", $prefix);
$xf = RestAPIHelper::getFolder(RestFolderEnum::FE_XSL_FOLDER) . "oai-applications.xsl";
$xsl = new DOMDocument();
$xsl->load($xf);
$proc = new XSLTProcessor();
$proc->registerPHPFunctions();
$proc->importStylesheet($xsl);
$xml = new DOMDocument();
$xml->loadXML($res, LIBXML_NSCLEAN | LIBXML_COMPACT);
$xml = $proc->transformToXml($xml);
return $xml;
} else {
return $this->buildResponse($this->getError("idDoesNotExist", "Item not found"));
}
} else {
return $this->buildResponse($this->getError("cannotDisseminateFormat", "The metadata format identified by the value given for the metadataPrefix argument is not supported by the item or by the repository."));
}
}
}
/**
* realization of get() from iRestResource. If authorization succeeds, then
* sets the GET model. Calls accessDenied() and returns FALSE otherwise.
*/
public function get()
{
$this->_list = false;
$this->_method = RestMethodEnum::RM_GET;
if ($this->authorize(RestMethodEnum::RM_GET)) {
$cachefile = RestAPIHelper::getFolder(RestFolderEnum::FE_CACHE_FOLDER) . '/query_' . get_class($this) . '_' . md5(var_export($this->_pars, true)) . '.xml';
//debug_log("checking API cache file '" . $cachefile . "'");
if (file_exists($cachefile) && $this->isCacheable()) {
$cache = file_get_contents($cachefile);
// invalidate cache if its life span has been exeeced
$xml = new SimpleXMLElement($cache);
$maxcachelife = 0;
foreach ($xml->xpath('//appdb:appdb') as $x) {
$cachetime = strval($x->attributes()->cached);
if (is_numeric($cachetime)) {
$cachelife = time() - $cachetime;
if ($cachelife > $maxcachelife) {
$maxcachelife = $cachelife;
}
}
}
if ($maxcachelife > $this->getCacheLife()) {
// unlink cache file and perform proper query
@unlink($cachefile);
$this->_model = $this->getModel();
return new XMLFragmentRestResponse("", $this);
} else {
// serve existing cache
//debug_log("serving cached data");
// TODO: remove this code block, and add cache hooks to the RestResource interface which will properly implement
// needed actions in subclasses
if (get_class($this) == "RestAppItem" || get_class($this) == "RestPplItem" || get_class($this) == "RestBroker") {
$xml = new SimpleXMLElement($cache);
foreach ($xml->xpath('//appdb:appdb') as $x) {
$cachetime = strval($x->attributes()->cached);
if (is_numeric($cachetime)) {
if (time() - $cachetime > $this->getCacheLife()) {
// TODO: read min cache time from config (do not hardcode to 1min)
$x->attributes()->cached = time();
foreach ($x->xpath('//application:application|person:person') as $y) {
$hitCount = strval($y->attributes()->hitcount);
if (is_numeric($hitCount)) {
$y->attributes()->hitcount = $hitCount + 1;
}
}
}
}
}
$cache = $xml->asXML();
$f = fopen($cachefile, "w");
fwrite($f, $cache);
fclose($f);
}
return new XMLRestResponse($cache, $this);
}
} else {
$this->_model = $this->getModel();
return new XMLFragmentRestResponse("", $this);
}
} else {
return $this->accessDenied();
}
}
private function gridops_is_down()
{
@exec(APPLICATION_PATH . "/../bin/gridops_down");
if (file_exists(RestAPIHelper::getFolder(RestFolderEnum::FE_CACHE_FOLDER) . "/gridops_downtime")) {
return true;
} else {
return false;
}
}
public function hidePrivateData($data)
{
return $data;
$xf = RestAPIHelper::getFolder(RestFolderEnum::FE_XSL_FOLDER) . 'virtualization.private.xsl';
$xsl = new DOMDocument();
$xsl->load($xf);
$proc = new XSLTProcessor();
$proc->registerPHPFunctions();
$proc->importStylesheet($xsl);
$xml = new DOMDocument();
$xml->loadXML($data, LIBXML_NSCLEAN | LIBXML_COMPACT);
$res = $proc->transformToXml($xml);
return $res;
}
public function newproxy()
{
$apiroutes = new SimpleXMLElement(APPLICATION_PATH . "/apiroutes.xml", 0, true);
$pars = array();
$postdata = null;
$method = strtolower($this->getRequest()->getMethod());
$error = null;
$extError = null;
if ($method === "post") {
$postdata = $_POST['data'];
if (isset($_POST['resource']) && trim($_POST['resource']) === "broker") {
if ($this->session->isLocked()) {
$this->session->unLock();
}
session_write_close();
$res = $_POST['resource'];
} else {
$res = $this->_getParam("resource");
}
} else {
$res = $this->_getParam("resource");
}
$url = preg_replace('/\\?.*/', '', $res);
$qs = explode("&", preg_replace('/.*\\?/', '', $res));
$rx = RestBroker::matchResource($url, $apiroutes, $pars);
if (is_null($rx)) {
// FIXME: workaround for erroneous proxy resource notation (double URL-encoded)
// FIXME: should be fixed at the source
$res = urldecode($res);
$url = preg_replace('/\\?.*/', '', $res);
$qs = explode("&", preg_replace('/.*\\?/', '', $res));
$rx = RestBroker::matchResource($url, $apiroutes, $pars);
if (!is_null($rx)) {
// FIXME: workaround for erroneous people canonical URLs with query strings
if ($rx->resource == "RestPplItem" && ($method = "get")) {
$qs = null;
}
}
} else {
// FIXME: workaround for erroneous people canonical URLs with query strings
if ($rx->resource == "RestPplItem" && ($method = "get")) {
$qs = null;
}
}
if (is_array($qs)) {
foreach ($qs as $q) {
$i = explode("=", $q);
if (count($i) > 1) {
$pars[$i[0]] = urldecode($i[1]);
}
}
}
if (!is_null($postdata)) {
$pars['data'] = $postdata;
}
$routeXslt = null;
switch (strtolower($method)) {
case "get":
$method = RestMethodEnum::RM_GET;
break;
case "put":
$method = RestMethodEnum::RM_PUT;
break;
case "post":
$method = RestMethodEnum::RM_POST;
break;
case "delete":
$method = RestMethodEnum::RM_DELETE;
break;
case "options":
$method = RestMethodEnum::RM_OPTIONS;
break;
default:
$method = RestMethodEnum::RM_GET;
break;
}
$ret = "";
if (!is_null($rx)) {
try {
$resclass = strval($rx->resource);
$this->session = new Zend_Session_Namespace('default');
if (isset($_SERVER['REMOTE_ADDR']) && $_SERVER['REMOTE_ADDR'] != '') {
$src = base64_encode($_SERVER['REMOTE_ADDR']);
} else {
$src = '';
}
$pars['src'] = $src;
if (isset($_SERVER['SERVER_ADDR']) && $_SERVER['SERVER_ADDR'] != '') {
$srv = base64_encode($_SERVER['SERVER_ADDR']);
} else {
$srv = '';
}
$pars['remoteaddr'] = $srv;
$apikey = $userid = $passwd = '';
if ($this->session->userid !== null) {
$userid = $this->session->userid;
if (isset($_COOKIE['SimpleSAMLAuthToken'])) {
$passwd = $_COOKIE['SimpleSAMLAuthToken'];
} else {
error_log("Warning: auth token cookie ('SimpleSAMLAuthToken') is undefined!");
}
$apiconf = Zend_Registry::get("api");
$apikey = $apiconf["key"];
}
$pars['userid'] = $userid;
$pars['passwd'] = $passwd;
$pars['apikey'] = $apikey;
$pars['sessionid'] = session_id();
$pars['cid'] = 0;
if ($userid != '') {
$_GET['userid'] = $userid;
}
$res = new $resclass($pars);
$fmt = $rx->xpath("format");
if (count($fmt) > 0) {
foreach ($fmt as $f) {
if (strval($f) === "xml") {
if (strval($f->attributes()->xslt) != '') {
$routeXslt = strval($f->attributes()->xslt);
}
break;
}
}
}
} catch (Exception $e) {
$error = RestErrorEnum::toString(RestErrorEnum::RE_INVALID_REPRESENTATION);
$extError = "Could not instantiate REST resource for request `" . $res . "'";
$this->getResponse()->clearAllHeaders();
$this->getResponse()->setRawHeader("HTTP/1.0 400 Bad Request");
$this->getResponse()->setHeader("Status", "400 Bad Request");
if ($extError != "") {
error_log($error . '\\n' . $extError);
echo $error . '\\n' . $extError;
} else {
error_log($error);
echo $error;
}
return;
}
} else {
$error = RestErrorEnum::toString(RestErrorEnum::RE_INVALID_REPRESENTATION);
$extError = "Could not resolve REST resource for request `" . $res . "'";
$this->getResponse()->clearAllHeaders();
$this->getResponse()->setRawHeader("HTTP/1.0 400 Bad Request");
$this->getResponse()->setHeader("Status", "400 Bad Request");
if ($extError != "") {
error_log($error . '\\n' . $extError);
echo $error . '\\n' . $extError;
} else {
error_log($error);
echo $error;
}
return;
}
$s_method = strtolower(RestMethodEnum::toString($method));
$_res = $res->{$s_method}();
if ($_res !== false) {
if ($_res->isFragment()) {
$res = $_res->finalize();
} else {
$res = $_res;
}
if (!is_null($routeXslt)) {
$res = $res->transform(RestAPIHelper::getFolder(RestFolderEnum::FE_XSL_FOLDER) . $routeXslt);
}
echo $res;
} else {
$error = RestErrorEnum::toString($res->getError());
$extError = $res->getExtError();
$this->getResponse()->clearAllHeaders();
$this->getResponse()->setRawHeader("HTTP/1.0 400 Bad Request");
$this->getResponse()->setHeader("Status", "400 Bad Request");
if ($extError != "") {
error_log($error . '\\n' . $extError);
echo $error . '\\n' . $extError;
} else {
error_log($error);
echo $error;
}
}
}
