libraries/display_import_ajax.lib.php

   1 <?php
   2 /* vim: set expandtab sw=4 ts=4 sts=4: */
   3 /**
   4 *
   5 * @version $Id$
   6 * @package phpMyAdmin
   7 */
   8
   9 if (!defined('PHPMYADMIN')) {
  10   exit;
  11 }
  12 /**
  13   * constant for differenciating array in $_SESSION variable
  14   */
  15 $SESSION_KEY = '__upload_status';
  16
  17 /**
  18   * sets default plugin for handling the import process
  19   */
  20 $_SESSION[$SESSION_KEY]["handler"] = "";
  21
  22 /**
  23   * unique ID for each upload
  24   */
  25 $upload_id = uniqid("");
  26
  27 /**
  28   * list of available plugins
  29   */
  30 $plugins = array(
  31            "uploadprogress",
  32            "apc",
  33            "noplugin"
  34            ); // available plugins. Each plugin has own checkfunction in upload_functions.php and own file with functions in upload_#KEY#.php
  35
  36 // select available plugin
  37 foreach ($plugins as $plugin) {
  38   $check = "PMA_import_".$plugin."Check";
  39
  40   if ($check()) {
  41     $_SESSION[$SESSION_KEY]["handler"] = $plugin;
  42     include_once("import/upload/".$plugin.".php");
  43     break;
  44   }
  45 }
  46
  47 /**
  48   * Checks if APC bar extension is available and configured correctly.
  49   *
  50   * @return true if APC extension is available and if rfc1867 is enabled, false if it is not
  51   */
  52 function PMA_import_apcCheck() {
  53   if (!extension_loaded('apc') || !function_exists('apc_fetch') || !function_exists('getallheaders'))
  54     return false;
  55   return (ini_get('apc.enabled') && ini_get('apc.rfc1867'));
  56 }
  57
  58 /**
  59   * Checks if UploadProgress bar extension is available.
  60   *
  61   * @return true if UploadProgress extension is available, false if it is not
  62   */
  63 function PMA_import_uploadprogressCheck() {
  64   if (!function_exists("uploadprogress_get_info") || !function_exists('getallheaders'))
  65     return false;
  66   return true;
  67 }
  68 /**
  69   * Default plugin for handling import. If no other plugin is available, noplugin is used.
  70   *
  71   * @return true
  72   */
  73 function PMA_import_nopluginCheck() {
  74   return true;
  75 }
  76
  77 /**
  78   * The function outputs json encoded status of uploaded. It uses PMA_getUploadStatus, which is defined in plugin's file.
  79   *
  80   * @param $id - ID of transfer, usually $upload_id from display_import_ajax.lib.php
  81   */
  82 function PMA_importAjaxStatus($id) {
  83     header('Content-type: application/json');
  84     echo json_encode(PMA_getUploadStatus($id));
  85 }
  86 ?>