code: public function viewLogAction()
      {
          $token = $this->getRequest()->getParam('token');
          $log = $this->getRequest()->getParam('log');
  
          if (!$token || !$log) {
              $this->getResponse()->setHttpResponseCode(400)->setBody('Invalid parameters');
              return;
          }
  
          /** @var Sheep_Debug_Model_RequestInfo $requestProfile */
          $requestProfile = Mage::getModel('sheep_debug/requestInfo')->load($token, 'token');
          if (!$requestProfile->getId()) {
              $this->getResponse()->setHttpResponseCode(404)->setBody('Request profile not found');
              return;
          }
  
          try {
              $content = $requestProfile->getLogging()->getLoggedContent($log);
              $this->getResponse()->setHttpResponseCode(200)->setBody($content);
          } catch (Exception $e) {
              $this->getResponse()->setHttpResponseCode(200)->setBody('Unable to retrieve logged content');
          }
      }
docs: Returns lines from log file