CC-5814: 'Down for maintenance' page during upgrades

airtime_mvc/application/controllers/IndexController.php

@@ -18,4 +18,9 @@ class IndexController extends Zend_Controller_Action
         $this->_helper->layout->setLayout('layout');
     }
 
+    public function maintenanceAction()
+    {
+        $this->getResponse()->setHttpResponseCode(503);
+    }
+
 }

airtime_mvc/application/controllers/UpgradeController.php

@@ -17,6 +17,12 @@ class UpgradeController extends Zend_Controller_Action
             return;
         }
         
+        //Disable Airtime UI
+        //create a temporary maintenance notification file
+        $maintenanceFile = '/tmp/maintenance.txt';
+        $file = fopen($maintenanceFile, 'w');
+        fclose($file);
+        
         //Begin upgrade
         $filename = isset($_SERVER['AIRTIME_CONF']) ? $_SERVER['AIRTIME_CONF'] : "/etc/airtime/airtime.conf";
         $values = parse_ini_file($filename, true);
@@ -75,6 +81,8 @@ class UpgradeController extends Zend_Controller_Action
         $file = new SplFileObject($iniFile, "w");
         $file->fwrite($beginning."\n".$newLines.$end);
 
+        unlink($maintenanceFile);
+
         $this->getResponse()
             ->setHttpResponseCode(200)
             ->appendBody("Upgrade to Airtime 2.5.3 OK");

airtime_mvc/application/controllers/plugins/Maintenance.php

@@ -0,0 +1,15 @@
+<?php
+
+class Zend_Controller_Plugin_Maintenance extends Zend_Controller_Plugin_Abstract
+{
+    protected $maintenanceFile = '/tmp/maintenance.txt';
+
+    public function preDispatch(Zend_Controller_Request_Abstract $request) {
+        if (file_exists($this->maintenanceFile)) {
+            $request->setModuleName('default')
+                    ->setControllerName('index')
+                    ->setActionName('maintenance')
+                    ->setDispatched(true);
+        }
+    }
+}