<? php
/*
 * Copyright (c) 2011 - OpenSLX GmbH, RZ Uni Freiburg
* This program is free software distributed under the GPL version 2.
* See http://gpl.openslx.org/
*
* If you have any feedback please consult http://feedback.openslx.org/ and
* send your suggestions, praise, or complaints to feedback@openslx.org
*
* General information about OpenSLX can be found at http://openslx.org/
*/

class dev_ResourceController extends Zend_Controller_Action {

  private $thisSession;

  public function init() {
    $this->_helper->layout->disableLayout();
    $this->_helper->viewRenderer->setNoRender();

    $alphasessionID = $this->_request->getParam('alpha');
    $session = new Application_Model_Session();
    $sm = new Application_Model_SessionMapper();
    $result = $sm->findBy(array('alphasessionID' => $alphasessionID), true);
# print_a($result);
    $this->thisSession = $session->setOptions($result[0]);
    $this->thisSession->setID($result[0]['sessionID']);
  }

  public function indexAction() {


  }

  public function getinitramfsAction() {

    $bootosID = $this->thisSession->getBootosID();

    if(is_dir("../resources/bootos/$bootosID/initramfs/") && is_numeric($bootosID)) {

      header('Content-Type: application/x-gzip');
      $content_disp = ( ereg('MSIE ([0-9].[0-9]{1,2})', $_SERVER['HTTP_USER_AGENT']) == 'IE') ? 'inline' : 'attachment';
      header('Content-Disposition:  ' . $content_disp . '; filename="initramfs"');
      header('Pragma: no-cache');
      header('Expires: 0');

      // create file.
      chdir("../resources/bootos/$bootosID/initramfs/");
      $initname = array_pop(scandir("./"));

      passthru( "cat ".$initname);
    }
  }

  public function getconfigAction() {
    $bootmenuentryID = $this->thisSession->getBootmenuentryID();

    $bootmenuentry = new Application_Model_BootMenuEntries();
    $bmm = new Application_Model_BootMenuEntriesMapper();
    $bmm->find($bootmenuentryID, $bootmenuentry);
# print_a($bootmenuentry);

    $configID = $bootmenuentry->getConfigID();

    if(is_dir("../resources/config/$configID/config/") && is_numeric($configID)) {

      header('Content-Type: application/x-gzip');
      $content_disp = ( ereg('MSIE ([0-9].[0-9]{1,2})', $_SERVER['HTTP_USER_AGENT']) == 'IE') ? 'inline' : 'attachment';
      header('Content-Disposition:  ' . $content_disp . '; filename="config.tgz"');
      header('Pragma: no-cache');
      header('Expires: 0');

      // create the gzipped tarfile.
      chdir("../resources/config/$configID/config/");
      passthru( "tar cz ./");
    }
  }

  public function getkernelAction() {
    $bootosID = $this->thisSession->getBootosID();

    if(is_dir("../resources/bootos/$bootosID/kernel/") && is_numeric($bootosID)) {

      header('Content-Type: application/x-gzip');
      $content_disp = ( ereg('MSIE ([0-9].[0-9]{1,2})', $_SERVER['HTTP_USER_AGENT']) == 'IE') ? 'inline' : 'attachment';
      header('Content-Disposition:  ' . $content_disp . '; filename="kernel"');
      header('Pragma: no-cache');
      header('Expires: 0');

      // create the gzipped tarfile.
      chdir("../resources/bootos/$bootosID/kernel/");
      $kernelname = array_pop(scandir("./"));

      passthru( "cat ". $kernelname);
    }
  }

  public function getkclAction() {
    $bmeID = $this->thisSession->getBootmenuentryID();

    if(is_numeric($bmeID)) {

      $bmemapper = new Application_Model_BootMenuEntriesMapper();
      $bme = new Application_Model_BootMenuEntries();
      $bmemapper->find($bmeID, $bme);

      header('Content-Type: text/html');
      $content_disp = ( ereg('MSIE ([0-9].[0-9]{1,2})', $_SERVER['HTTP_USER_AGENT']) == 'IE') ? 'inline' : 'attachment';
      header('Content-Disposition:  ' . $content_disp . '; filename="kcl.txt"');
      header('Pragma: no-cache');
      header('Expires: 0');

      if($bme->getKcl() != null)
        { $result = $bme->getKcl() . " " . $bme->getKclappend(); }
      else
        { $result = $bme->getKclappend(); }

      echo $result;


    }

  }

  public function getbootmenuentryAction() {
    // obsolete function (now only for debugging)
    // after selecting the BootOS it will be saved in session
    // so getkclAction, getkernelAction, getconfigAction and getinitramfsAction
    // can be called with session-identifier
    $bootmenuentryID = $this->_request->getParam('bootmenuentryID');
    $bootosID = $this->_request->getParam('bootosID');

    $this->thisSession->setBootosID($bootosID)->setBootmenuentryID($bootmenuentryID);
    $sessionMapper = new Application_Model_SessionMapper();
    $sessionMapper->save($this->thisSession);

    if($this->thisSession->getBootmenuentryID() != null) {
      header('Content-Type: application/json');
      $return_val =
        array(
          'info' => 'This function is for debugging purpose only',
          'kernel' => $this->generateURL('getkernel', 'alpha', $_SESSION['alphasessionID'], "kernel"),
          'initramfs' => $this->generateURL('getinitramfs', 'alpha', $_SESSION['alphasessionID'], "initramfs"),
          'kcl' => $this->generateURL('getkcl', 'alpha', $_SESSION['alphasessionID'], "kcl.txt"),
          'config' => $_SESSION['alphasessionID']
        );
      echo json_encode($return_val);
    } else {
      echo json_encode(
        array(  'info' => 'This function is for debugging purpose only',
                'error' => 'your session is out of date')
      );
    }
  }

  private function generateURL($action, $varname, $varvalue, $filename) {
    $path = '/dev/resource/'. $action .'/' . $varname .'/' . $varvalue .'/file/' . $filename  ;
    $path = "http://" . $_SERVER['SERVER_NAME'] . $path;
    return $path;
  }

}