/**
  * Executes index action
  *
  * @param sfRequest $request A request object
  */
 public function executeIndex(sfWebRequest $request)
 {
     // for performance reasons, we insert this configuration inside the method itself
     $methods = array('getToken', 'getServerTime', 'getUserSettings', 'getLists', 'getDeletedLists', 'getTags', 'getDeletedTags', 'getRepetitions', 'getRepetitionOptions', 'getTasks', 'getDeletedTasks', 'completeTask', 'uncompleteTask', 'deleteTask', 'addTask', 'editTask', 'setTaskNote', 'sync', 'whatHasChanged');
     // token, sig, api_ver are required for each method
     $extraRequiredParamsMap = array('getToken' => array('api_key'), 'getServerTime' => array(), 'getUserSettings' => array(), 'getLists' => array(), 'getDeletedLists' => array('from_ts', 'to_ts'), 'getTags' => array(), 'getDeletedTags' => array('from_ts', 'to_ts'), 'getRepetitions' => array(), 'getRepetitionOptions' => array(), 'getTasks' => array(), 'getDeletedTasks' => array('from_ts', 'to_ts'), 'completeTask' => array('task_id'), 'uncompleteTask' => array('task_id'), 'addTask' => array('descr'), 'editTask' => array('task_id'), 'setTaskNote' => array('task_id', 'note'), 'deleteTask' => array('task_id'), 'sync' => array('local_changes'), 'whatHasChanged' => array('from_ts', 'to_ts'));
     $optionalParamsMap = array('getToken' => array('user_key', 'user_email', 'user_pwd', 'extra_info'), 'getServerTime' => array(), 'getUserSettings' => array(), 'getLists' => array('from_ts', 'to_ts'), 'getDeletedLists' => array(), 'getTags' => array('from_ts', 'to_ts'), 'getDeletedTags' => array(), 'getRepetitions' => array('from_ts', 'to_ts'), 'getRepetitionOptions' => array('from_ts', 'to_ts'), 'getTasks' => array('from_ts', 'to_ts', 'task_id', 'list_id', 'tag_id', 'completed', 'only_with_due_date', 'only_without_due_date', 'only_due_today_or_tomorrow', 'only_starred', 'by_date', 'search_query'), 'getDeletedTasks' => array(), 'completeTask' => array('baseline_due_date'), 'uncompleteTask' => array(), 'addTask' => array('list_id', 'is_header', 'due_date', 'due_time', 'is_starred', 'repetition_id', 'repetition_param', 'repetition_ical_rrule', 'note', 'tag_ids'), 'editTask' => array('list_id', 'descr', 'is_header', 'due_date', 'due_time', 'is_starred', 'repetition_id', 'repetition_param', 'repetition_ical_rrule', 'note', 'tag_ids'), 'setTaskNote' => array(), 'deleteTask' => array(), 'sync' => array(), 'whatHasChanged' => array());
     $methodName = $request->getParameter('method_name');
     $token = $request->getParameter('token');
     $sig = $request->getParameter('sig');
     $apiVersion = $request->getParameter('api_ver');
     if (!in_array($methodName, $methods)) {
         return $this->returnError(PlancakeApiServer::INVALID_METHOD_ERROR);
     }
     $this->methodName = $methodName;
     if ($token === null) {
         return $this->returnError(PlancakeApiServer::MISSING_TOKEN_ERROR);
     }
     if (!$sig) {
         return $this->returnError(PlancakeApiServer::MISSING_SIGNATURE_ERROR);
     }
     if (!$apiVersion) {
         return $this->returnError(PlancakeApiServer::MISSING_API_VERSION);
     }
     $params = array();
     $params['token'] = $token;
     $params['sig'] = $sig;
     $params['api_ver'] = $apiVersion;
     $extraRequiredParams = $extraRequiredParamsMap[$methodName];
     foreach ($extraRequiredParams as $extraRequiredParam) {
         $paramValue = $request->getParameter($extraRequiredParam);
         if ($paramValue !== null) {
             $params[$extraRequiredParam] = $paramValue;
         } else {
             return $this->returnError(PlancakeApiServer::MISSING_PARAMETER_ERROR);
         }
     }
     if (!$this->isTokenValid($token)) {
         return $this->returnError(PlancakeApiServer::INVALID_TOKEN_ERROR);
     }
     $apiKey = isset($params['api_key']) ? $params['api_key'] : null;
     $apiApp = $this->getApiApp($params['token'], $apiKey);
     if ($apiApp === null) {
         return $this->returnError(PlancakeApiServer::INVALID_API_KEY_OR_TOKEN_ERROR);
     }
     if ($apiApp->isLimited()) {
         if ($apiApp->hasReachedLimits()) {
             return $this->returnError(PlancakeApiServer::RATE_LIMIT_REACHED);
         }
     }
     $apiSecret = $apiApp->getApiSecret();
     // loading optional params
     $optionalParams = $optionalParamsMap[$methodName];
     foreach ($optionalParams as $optionalParam) {
         $paramValue = $request->getParameter($optionalParam);
         if ($paramValue !== null) {
             $params[$optionalParam] = $paramValue;
         }
     }
     // if from_ts is specified, also to_ts
     if (isset($params['from_ts']) && !isset($params['to_ts']) || isset($params['to_ts']) && !isset($params['from_ts']) || isset($params['from_ts']) && isset($params['from_ts']) && !((int) $params['from_ts'] > 0) || isset($params['from_ts']) && isset($params['from_ts']) && !((int) $params['to_ts'] > 0)) {
         return $this->returnError(PlancakeApiServer::MISSING_FROMTS_OR_TOTS_PARAMETER_ERROR);
     }
     if (!(strlen($apiSecret) > 0)) {
         return $this->returnError(PlancakeApiServer::INVALID_API_KEY_ERROR);
     }
     if (!$this->isSignatureValid($params, $apiSecret)) {
         return $this->returnError(PlancakeApiServer::INVALID_SIGNATURE_ERROR);
     }
     $user = null;
     if (strlen($token) > 0) {
         $userId = PcApiTokenPeer::retrieveByPK($token)->getUserId();
         $user = PcUserPeer::retrieveByPK($userId);
         PcUserPeer::setLoggedInUser($user);
         $user->refreshLastLogin()->save();
     }
     unset($params['token']);
     unset($params['sig']);
     $response = call_user_func(array('PlancakeApiServer', $methodName), $params);
     $jsonResponse = json_encode($response);
     $apiApp->recordStats(strlen($jsonResponse));
     if ($user && $user->hasGoogleCalendarIntegrationActive()) {
         $gcalRecord = PcGoogleCalendarPeer::retrieveByUser($user);
         if ($gcalRecord && time() - $gcalRecord->getLatestSyncEndTimestamp() > sfConfig::get('app_api_googleCalendarSyncMinInterval')) {
             $gcal = new GoogleCalendarInterface($user);
             $gcal->init();
             $gcal->syncPlancake();
         }
     }
     if ($callback = $request->getParameter('callback')) {
         $this->getResponse()->setContentType('text/javascript');
         $response = $callback . '(' . $jsonResponse . ')';
     } else {
         $this->getResponse()->setContentType('application/json');
         $response = $jsonResponse;
     }
     return $this->renderText($response);
 }