/**
* Attempt to authenticate the current user.
*
* @return object User object if successful, PEAR_Error otherwise.
* @access public
*/
public function authenticate()
{
global $configArray;
if (!isset($_POST['assertion'])) {
return new PEAR_Error('Missing assertion');
}
$assertion = $_POST['assertion'];
$audience = (empty($_SERVER['HTTPS']) ? 'http://' : 'https://') . $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'];
$postdata = 'assertion=' . urlencode($assertion) . '&audience=' . urlencode($audience);
$client = new Proxy_Request('https://verifier.login.persona.org/verify');
$client->setMethod(HTTP_REQUEST_METHOD_POST);
$client->addPostData('assertion', $assertion);
$client->addPostData('audience', $audience);
$client->sendRequest();
$response = $client->getResponseBody();
$result = json_decode($response);
if ($result->status !== 'okay') {
return new PEAR_ERROR($result->reason);
}
$user = new User();
$user->username = (isset($configArray['Site']['institution']) ? $configArray['Site']['institution'] . ':' : '') . $result->email;
$userIsInVufindDatabase = $user->find(true);
$user->authMethod = 'MozillaPersona';
if (!$userIsInVufindDatabase || !$user->email) {
$user->email = $result->email;
}
$user->last_login = date('Y-m-d H:i:s');
if ($userIsInVufindDatabase) {
$user->update();
} else {
$user->created = date('Y-m-d');
$user->insert();
}
return $user;
}
/**
* Send an NCIP request.
*
* @param string $xml XML request document
*
* @return object SimpleXMLElement parsed from response
* @access private
*/
private function _sendRequest($xml)
{
// Make the NCIP request:
$client = new Proxy_Request(null, array('useBrackets' => false));
$client->setMethod(HTTP_REQUEST_METHOD_POST);
$client->setURL($this->_config['Catalog']['url']);
$client->addPostData('NCIP', $xml);
$result = $client->sendRequest();
if (PEAR::isError($result)) {
PEAR::raiseError($result);
}
// Process the NCIP response:
$response = $client->getResponseBody();
if ($result = @simplexml_load_string($response)) {
return $result;
} else {
PEAR::raiseError(new PEAR_Error("Problem parsing XML"));
}
}
/**
* Get data and output in JSON
*
* @return void
* @access public
*/
public function getRSIStatuses()
{
//<SFX server>:<port>/<sfx_instance>/cgi/core/rsi/rsi.cgi
global $configArray;
if (!isset($configArray['OpenURL']['url'])) {
return $this->output(array(), JSON::STATUS_OK);
}
$sfxUrl = $configArray['OpenURL']['url'] . "/cgi/core/rsi/rsi.cgi";
$metalib = new MetaLib();
$indexEngine = SearchObjectFactory::initSearchObject()->getIndexEngine();
$dom = new DOMDocument('1.0', 'UTF-8');
// ID REQUEST
$idReq = $dom->createElement('IDENTIFIER_REQUEST', '');
$idReq->setAttribute("VERSION", "1.0");
$idReq->setAttribute("xsi:noNamespaceSchemaLocation", "ISSNRequest.xsd");
$idReq->setAttribute("xmlns:xsi", "http://www.w3.org/2001/XMLSchema-instance");
$dom->appendChild($idReq);
// Cache values and status in an array
$rsiResults = array();
$validRequest = false;
foreach ($_REQUEST['id'] as $id) {
if (strncmp($id, 'metalib.', 8) == 0) {
if (!($record = $metalib->getRecord($id))) {
$this->output('Record does not exist', JSON::STATUS_ERROR);
return;
}
$values = array('isbn' => !empty($record['ISBN']) ? $record['ISBN'][0] : '', 'issn' => !empty($record['ISSN']) ? $record['ISSN'][0] : '', 'year' => !empty($record['PublicationDate']) ? $record['PublicationDate'][0] : '', 'volume' => !empty($record['Volume']) ? $record['Volume'] : '', 'issue' => !empty($record['Issue']) ? $record['Issue'] : '', 'institute' => isset($configArray['OpenURL']['institute']) ? $configArray['OpenURL']['institute'] : '');
} else {
if (!($record = $indexEngine->getRecord($id))) {
$this->output('Record does not exist', JSON::STATUS_ERROR);
return;
}
$recordDriver = RecordDriverFactory::initRecordDriver($record);
$values = $recordDriver->getRSIValues($recordDriver);
}
$result = array('id' => $id, 'status' => 'noInformation');
// Ignore the record if mandatory elements are not available
if (empty($values['issn']) && empty($values['isbn'])) {
// Mark this result invalid so it can be skipped when processing results
$result['invalid'] = true;
$rsiResults[] = $result;
continue;
}
$rsiResults[] = $result;
$validRequest = true;
// ID REQUEST ITEM
$idReqItem = $dom->createElement('IDENTIFIER_REQUEST_ITEM', '');
$idReq->appendChild($idReqItem);
// ID
if (!empty($values['issn'])) {
$identifier = $dom->createElement('IDENTIFIER', 'issn:' . $values['issn']);
$idReqItem->appendChild($identifier);
}
if (!empty($values['isbn'])) {
$identifier = $dom->createElement('IDENTIFIER', 'isbn:' . $values['isbn']);
$idReqItem->appendChild($identifier);
}
// Optional elements
if ($values['year']) {
$year = $dom->createElement('YEAR', $values['year']);
$idReqItem->appendChild($year);
}
if ($values['volume']) {
$volume = $dom->createElement('VOLUME', $values['volume']);
$idReqItem->appendChild($volume);
}
if ($values['issue']) {
$issue = $dom->createElement('ISSUE', $values['issue']);
$idReqItem->appendChild($issue);
}
if ($values['institute']) {
$institute = $dom->createElement('INSTITUTE_NAME', $values['institute']);
$idReqItem->appendChild($institute);
}
}
if (!$validRequest) {
return $this->output(array(), JSON::STATUS_OK);
}
$xml = $dom->saveXML();
$req = new Proxy_Request($sfxUrl, array('saveBody' => true));
$req->setMethod(HTTP_REQUEST_METHOD_POST);
$req->addPostData('request_xml', $xml);
$req->sendRequest();
$code = $req->getResponseCode();
if ($code != 200) {
$this->output("SFX RSI request failed ({$code})", JSON::STATUS_ERROR);
return;
}
$dom->loadXML($req->getResponseBody());
$items = $dom->getElementsByTagName('IDENTIFIER_RESPONSE_ITEM');
$position = -1;
foreach ($items as $item) {
$requests = $dom->getElementsByTagName('IDENTIFIER_REQUEST_ITEM');
$request = $requests->item(0);
$position++;
// Bypass invalid ID's and stop if at the end of list.
while (isset($rsiResults[$position]['invalid'])) {
++$position;
}
if (!isset($rsiResults[$position])) {
break;
}
$result = $item->getElementsByTagName('RESULT')->item(0)->nodeValue;
if ($result == 'not found') {
$rsiResults[$position]['status'] = 'noFullText';
} elseif ($result == 'maybe') {
$rsiResults[$position]['status'] = 'maybeFullText';
} else {
foreach ($item->getElementsByTagName('AVAILABLE_SERVICES') as $service) {
if ($service->nodeValue == 'getFullTxt') {
$peerReviewed = false;
foreach ($item->getElementsByTagName('PEER_REVIEWED') as $peer) {
if ($peer->nodeValue == 'YES') {
$peerReviewed = true;
break;
}
}
$rsiResults[$position]['status'] = $peerReviewed ? 'peerReviewedFullText' : 'fullText';
break;
}
}
}
}
$results = array();
foreach ($rsiResults as $result) {
$results[] = array('id' => $result['id'], 'status' => $result['status']);
}
return $this->output($results, JSON::STATUS_OK);
}
