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