<?php

public class midlet_app_props {

  private $props;
  private $jar_name;
  private $use_pclzip;
  private $path_to_pclzip;

  function __construct($jar_name, $use_pclzip = false, $path_to_pclzip = '') {
    $this->props = array();
    $this->jar_name = $jar_name;
    $this->use_pclzip = $use_pclzip;
    $this->path_to_pclzip = $path_to_pclzip;
    $this->parse();
  }

  function __destruct() {
    unset($this->props);
  }

  public function add_app_property($key, $val) {
    if (!isset($this->props[$key])) {
      $this->props[$key] = $val;
      return TRUE;
    }
    return FALSE;
  }

  public function get_app_property($key) {
    return isset($this->props[$key]) ? $this->props[$key] : NULL;
  }

  public function set_app_property($key, $val) {
    if (isset($this->props[$key])) {
      $this->props[$key] = $val;
      return TRUE;
    }
    return FALSE;
  }

  public function get_permissions() {
    return $this->get_permissions0();
  }

  public function get_permissions_opt() {
    return $this->get_permissions0(TRUE);
  }

  public function get_keys() {
    return $this->get_from_props();
  }

  public function get_vals() {
    return $this->get_from_props(TRUE);
  }
/* это, пожалуй, лишнее
  public function get_props() {
    return $this->props;
  }

  public function set_props($props) {
    $this->props = $props;
  }
*/
  public function midlets_count() {
  }

  public function count() {
    return count($this->props);
  }

  public function save() {
    $tmp_file_name = 'META-INF/MANIFEST.MF';
    $tmp_file_pointer = fopen($tmp_file_name, 'w+');
    foreach($this->props as $key => $val) {
      fwrite($tmp_file_pointer, $key . ': ' . $val . '\n');
    }
    fclose($tmp_file_pointer);
    if ($this->use_pclzip) {
      return $this->save_pclzip();
    }
    return $this->save_za();
  }

  public function echo() {
    foreach($this->props as $key => $val) {
      echo $key . ': ' . $val;
    }
  }

  private function parse() {
    $tmp_file_name = $this->read_manifest();
    $arr = file($tmp_file_name);
    foreach($arr as $str) {
      $pos = strpos($str, ':');
      if ($pos >= 0) {
        $this->props[trim(substr($str, 0, $pos))] = trim(substr($str, $pos+1)));
      } else {
/* бывает глючит и часть значения переносится на другую строку:
 * MIDlet-1: midlet, /ic
 * on, ChildMIDlet
*/
        echo 'WARNING', $str;
        $this->props[count($this->props)-1] .= trim($str);
      }
    }
    unlink($tmp_file_name);
  }

  private function read_manifest() {
    if ($this->use_pclzip) {
      return $this->read_mf_pclzip();
    }
    return $this->read_mf_za();
  }

  private function read_mf_pclzip() {
    include_once $path_to_pclzip;
    $jar = new PclZip($this->jar_name);
    return 'META-INF/MANIFEST.MF';
  }

  private function read_mf_za() {
    $jar = new ZipArchive;
    $jar->open($this->jar_name);
    return 'META-INF/MANIFEST.MF';
  }

  private function save_pclzip() {
    include_once $path_to_pclzip;
    return FALSE;
  }

  private function save_az() {
    return FALSE;
  }

  private function get_permissions0($f = FALSE) {
    $val = $this->get_app_property('MIDlet-Permissions' . ($f ? '-Opt' : ''));
    return $val != NULL ? explode(',' $val) : NULL;
  }

  private function get_from_props($f = FALSE) {
    $out = array();
    foreach($this->props as $key => $val) {
      $out[] = $f ? $val : $key;
    }
    return $out;
  }

}

?>