/**
* Singleton implementation
* @return PHPSession
*/
public static function singleton()
{
if (is_null(self::$instance)) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Save a context in the current activity execution
*/
public function save()
{
$session = PHPSession::singleton();
if (!$session->hasAttribute('activityExecutionUri')) {
throw new common_exception_Error('missing activityExecutionUri in Session during RecoveryContext::retrieve()');
}
if (!$this->hasRequestParameter('context')) {
throw new common_exception_MissingParameter('context');
}
$saved = false;
$activityExecutionUri = $session->getAttribute('activityExecutionUri');
if (!empty($activityExecutionUri)) {
$activityExecution = new core_kernel_classes_Resource($activityExecutionUri);
$recoveryService = wfEngine_models_classes_RecoveryService::singleton();
$context = $this->getRequestParameter('context');
if (is_array($context)) {
if (count($context) > 0) {
$saved = $recoveryService->saveContext($activityExecution, $context);
}
} else {
if (is_null($context) || $context == 'null') {
//if the data sent are null [set context to null], we remove it
$saved = $recoveryService->removeContext($activityExecution);
}
}
}
echo json_encode(array('saved' => $saved));
}
/**
* Starts a new session and stores it in the session if stateful
*
* @param common_session_Session $session
* @return boolean
*/
public static function startSession(common_session_Session $session)
{
self::$session = $session;
// do not start session in cli mode (testcase script)
if (PHP_SAPI != 'cli') {
if ($session instanceof common_session_StatefulSession) {
// start session if not yet started
if (session_id() === '') {
session_name(GENERIS_SESSION_NAME);
session_start();
} else {
// prevent session fixation.
session_regenerate_id();
}
PHPSession::singleton()->setAttribute(self::PHPSESSION_SESSION_KEY, $session);
}
}
return true;
}
/**
*
* @author Lionel Lecaque, lionel@taotesting.com
*
*/
public function testSpawnResultDelivery()
{
//init the resultserver
$this->service->initResultServer('http://www.tao.lu/Ontologies/TAOResultServer.rdf#void');
//no result id given will take run the spawnResult of storage interface
$this->service->spawnResult('testcase_deliveryexecId');
$resultServer_deliveryResultIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryResultIdentifier");
$resultServer_deliveryExecutionIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryExecutionIdentifier");
$this->assertNull($resultServer_deliveryResultIdentifier);
$this->assertEquals('testcase_deliveryexecId', $resultServer_deliveryExecutionIdentifier);
//provide both identifier
$this->service->spawnResult('testcase_deliveryexecId', 'testcase_deliveryresultId');
$resultServer_deliveryResultIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryResultIdentifier");
$resultServer_deliveryExecutionIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryExecutionIdentifier");
$this->assertEquals('testcase_deliveryresultId', $resultServer_deliveryResultIdentifier);
$this->assertEquals('testcase_deliveryexecId', $resultServer_deliveryExecutionIdentifier);
//provide no results identifier but will retrieve previous call
$this->service->spawnResult('testcase_deliveryexecId');
$resultServer_deliveryResultIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryResultIdentifier");
$resultServer_deliveryExecutionIdentifier = \PHPSession::singleton()->getAttribute("resultServer_deliveryExecutionIdentifier");
$this->assertEquals('testcase_deliveryresultId', $resultServer_deliveryResultIdentifier);
$this->assertEquals('testcase_deliveryexecId', $resultServer_deliveryExecutionIdentifier);
}
/**
*
* @param type $test an identifier for the test uri rpeferred
* @param taoResultServer_models_classes_Variable $testVariable
* @param type $callIdTest a call test reference (distinguish test being embdded twice)
* @return type
*/
public function storeTestVariable($test, taoResultServer_models_classes_Variable $testVariable, $callIdTest)
{
$resultServer = $this->restoreResultServer();
$resultServer->getStorageInterface()->storeTestVariable(PHPSession::singleton()->getAttribute("resultServer_deliveryResultIdentifier"), $test, $testVariable, $callIdTest);
return PHPSession::singleton()->getAttribute("resultServer_deliveryResultIdentifier");
}
/**
* Create or retrieve the current activity execution of a process execution
* a given activity definition and a user
*
* @access public
* @author Somsack Sipasseuth, <*****@*****.**>
* @param Resource processExecution
* @param Resource activityExecution
* @param Resource user
* @param boolean bypassACL
* @return core_kernel_classes_Resource
*/
public function initCurrentActivityExecution(core_kernel_classes_Resource $processExecution, core_kernel_classes_Resource $activityExecution, core_kernel_classes_Resource $user, $bypassACL = false)
{
$returnValue = null;
if (!is_null($processExecution) && !is_null($activityExecution) && !is_null($user)) {
$assignedUser = $this->activityExecutionService->getActivityExecutionUser($activityExecution);
if (!is_null($assignedUser) && $assignedUser->getUri() == $user->getUri()) {
$this->activityExecutionService->setStatus($activityExecution, 'resumed');
$returnValue = $activityExecution;
} else {
if ($bypassACL || $this->activityExecutionService->checkAcl($activityExecution, $user, $processExecution)) {
//force assignation to the user:
if ($this->activityExecutionService->setActivityExecutionUser($activityExecution, $user, true)) {
$this->activityExecutionService->setStatus($activityExecution, 'started');
$returnValue = $activityExecution;
}
}
}
//set in the session the current activity uri
if (!is_null($returnValue)) {
//set time properties:
$propStartedTime = new core_kernel_classes_Property(PROPERTY_ACTIVITY_EXECUTION_TIME_STARTED);
$propLastTime = new core_kernel_classes_Property(PROPERTY_ACTIVITY_EXECUTION_TIME_LASTACCESS);
if (is_null($activityExecution->getOnePropertyValue($propStartedTime))) {
$activityExecution->setPropertyValue($propStartedTime, time());
}
$activityExecution->editPropertyValues($propLastTime, time());
$session = PHPSession::singleton();
$session->setAttribute("activityExecutionUri", $returnValue->getUri());
//for variable service only?
}
}
return $returnValue;
}
/**
*
* @example http://tao-dev/taoResultServer/ResultServerStateFull/spawnResult
* @return type
*/
public function spawnResult($deliveryExecutionIdentifier, $deliveryResultIdentifier = null)
{
if ($deliveryResultIdentifier == null) {
$resultServer = $this->restoreResultServer();
if ($this->getValue("resultServer_deliveryExecutionIdentifier") !== null and $this->getValue("resultServer_deliveryExecutionIdentifier") == $deliveryExecutionIdentifier) {
$resultServer_deliveryResultIdentifier = $this->getValue("resultServer_deliveryResultIdentifier");
} else {
$resultServer_deliveryResultIdentifier = $resultServer->getStorageInterface()->spawnResult();
}
} else {
$resultServer_deliveryResultIdentifier = $deliveryResultIdentifier;
}
PHPSession::singleton()->setAttribute("resultServer_deliveryResultIdentifier", $resultServer_deliveryResultIdentifier);
PHPSession::singleton()->setAttribute("resultServer_deliveryExecutionIdentifier", $deliveryExecutionIdentifier);
return $resultServer_deliveryResultIdentifier;
}
/**
* Enbales you to authenticate a communication based on the token
* @param string $token
* @return boolean
*/
protected function authenticate($token)
{
if (!empty($token)) {
$session = PHPSession::singleton();
$currentUser = $this->userService->getCurrentUser();
if (!is_null($currentUser)) {
$sessionKey = self::ENV_VAR_NAME . '_' . tao_helpers_Uri::encode($currentUser->getUri());
if ($session->hasAttribute($sessionKey)) {
$executionData = $session->getAttribute($sessionKey);
if (isset($executionData['token'])) {
if ($executionData['token'] == $token) {
return true;
}
}
}
}
}
return false;
}
public function getSession()
{
return PHPSession::singleton();
}
/**
* Short description of method _set
*
* @access private
* @author Somsack Sipasseuth, <*****@*****.**>
* @param string key
* @param string value
* @param Resource activityExecution
* @param boolean edit
* @return boolean
*/
private function _set($key, $value, core_kernel_classes_Resource $activityExecution = null, $edit = false)
{
$returnValue = (bool) false;
$session = PHPSession::singleton();
if (is_null($activityExecution) && $session->hasAttribute("activityExecutionUri")) {
$activityExecution = new core_kernel_classes_Resource($session->getAttribute("activityExecutionUri"));
}
if (!is_null($activityExecution)) {
$allVars = unserialize($activityExecution->getOnePropertyValue($this->variablesProperty));
$processVariable = $this->getProcessVariable($key);
if (!is_null($processVariable)) {
$property = new core_kernel_classes_Property($processVariable->getUri());
if ($edit) {
$returnValue &= $activityExecution->editPropertyValues($property, $value);
} else {
$returnValue &= $activityExecution->setPropertyValue($property, $value);
}
if (is_array($allVars)) {
if (!array_search($key, $allVars)) {
$allVars[] = $key;
}
} else {
$allVars = array($key);
}
}
$returnValue = $activityExecution->editPropertyValues($this->variablesProperty, serialize($allVars));
}
return (bool) $returnValue;
}
public function clearSession($global = true)
{
PHPSession::singleton()->clear($global);
}
/**
* Revokes the current CSRF token
* @return void
*/
public function revokeCsrfToken()
{
$sessionId = $this->getSessionId();
$service = self::getExtendedStateService();
$service->resetSecurity($sessionId);
\PHPSession::singleton()->setAttribute(self::TOKEN_KEY . $sessionId, $service->getSessionToken($sessionId));
}
/**
* Revokes the current CSRF token
* @return void
*/
public function revokeCsrfToken()
{
$session = \PHPSession::singleton();
$session->removeAttribute(self::TOKEN_KEY . $this->name);
$session->removeAttribute(self::TIMESTAMP_KEY . $this->name);
}