<?php
if(!defined('DOKU_INC')) die();
if(!defined('DOKU_PLUGIN')) define('DOKU_PLUGIN',DOKU_INC.'lib/plugins/');
require_once(DOKU_PLUGIN.'action.php');

class action_plugin_distribute extends DokuWiki_Action_Plugin {
  function getInfo(){
        return array(
            'author' => 'Ahmet Sacan',
            'email'  => 'ahmet@ceng.metu.edu.tr',
            'date'   => '2007-02-07',
            'name'   => 'Distribute plugin',
            'desc'   => 'helps distribute your plugins',
            'url'    => 'http://www.ceng.metu.edu.tr/~ahmet',
        );
  }

  function register(&$contr){
    $contr->register_hook('ACTION_ACT_PREPROCESS',
                          'BEFORE',
                          $this,
                          'handle_act',
                           array());
  }
  function handle_act(&$e, $param){
    if($e->data != 'distribute') return;
    $e->preventDefault();
    $e->data = 'show';
    $list = $this->getConf('plugins');
    $list = explode(',',$list);
    $p = $_GET['plugin'];
    if(!in_array($p, $list)){
      msg('sorry, distribution of ['.$p.'] plugin is not allowed.',-1);
      return;
    }
    if(!is_dir(DOKU_PLUGIN.$p)){
      msg('['.$p.'] plugin directory does not exist.',-1);
      return;
    }
    if(file_exists(DOKU_INC.'inc/ZipLib.class.php')){
      require_once DOKU_INC.'inc/ZipLib.class.php';
      $zip = new ZipLib;
    }
    elseif(file_exists(DOKU_PLUGIN.'plugin/inc/zip.lib.php')){//older dokuwiki version
      require_once DOKU_PLUGIN.'plugin/inc/zip.lib.php';
      $zip = new zip;
    }
    else{
      msg('Please make sure the dependency Plugin Manager plugin is installed, and that plugin/inc/zip.lib.php or ZipLib.class.php file exists.');
      return;
    }
    require_once dirname(__FILE__).'/helper.funcs.util.php';
    $files = getFilesInDir(DOKU_PLUGIN.$p, true,'f','',true);
    $lastupdate = my_filemtime(DOKU_PLUGIN.$p, true);
    global $conf;
    $cachefile = "$conf[cachedir]/distribute/$p.zip";
    if(my_filemtime($cachefile) < $lastupdate){
      $zip->add_dir($p);
      foreach($files as $f){
        $zip->add_file(file_get_contents(DOKU_PLUGIN.$p.'/'.$f),"$p/$f");
      }
      echo($zip->get_file());
      io_makeFileDir($cachefile);
      file_put_contents($cachefile, $zip->get_file());
    }
    if(!is_file($cachefile)){
      msg("Sorry, but zip file creation has failed.",-1);
      return;
    }
    header("Content-Type: application/octet-stream");
    header("Content-Disposition: filename=\"$p".'_'.date('Ymd',$lastupdate).".zip\"");
    header("Content-Length: ".(string)(filesize($cachefile)));
    readfile($cachefile);
    die();
  }
}

//Setup VIM: ex: et ts=4 enc=utf-8 :