Дозаливка

pma12111211/libraries/display_import_ajax.lib.php

@@ -0,0 +1,129 @@
+<?php
+/* vim: set expandtab sw=4 ts=4 sts=4: */
+/**
+* Handles plugins that show the upload progress
+*
+* @package PhpMyAdmin
+*/
+if (! defined('PHPMYADMIN')) {
+    exit;
+}
+
+/**
+  * constant for differenciating array in $_SESSION variable
+  */
+$SESSION_KEY = '__upload_status';
+
+/**
+  * sets default plugin for handling the import process
+  */
+$_SESSION[$SESSION_KEY]["handler"] = "";
+
+/**
+  * unique ID for each upload
+  */
+$upload_id = uniqid("");
+
+/**
+  * list of available plugins
+  *
+  * Each plugin has own checkfunction in display_import_ajax.lib.php
+  * and own file with functions in upload_#KEY#.php
+  */
+$plugins = array(
+   // PHP 5.4 session-based upload progress is problematic, see bug 3964
+   //"session",
+   "progress",
+   "apc",
+   "noplugin"
+);
+
+// select available plugin
+foreach ($plugins as $plugin) {
+    $check = "PMA_Import_" . $plugin . "Check";
+
+    if ($check()) {
+        $upload_class = "Upload" . ucwords($plugin);
+        $_SESSION[$SESSION_KEY]["handler"] = $upload_class;
+        include_once "plugins/import/upload/" . $upload_class . ".class.php";
+        break;
+    }
+}
+
+/**
+  * Checks if APC bar extension is available and configured correctly.
+  *
+  * @return boolean true if APC extension is available and if rfc1867 is enabled,
+  *                      false if it is not
+  */
+function PMA_Import_apcCheck()
+{
+    if (! extension_loaded('apc')
+        || ! function_exists('apc_fetch')
+        || ! function_exists('getallheaders')
+    ) {
+        return false;
+    }
+    return (ini_get('apc.enabled') && ini_get('apc.rfc1867'));
+}
+
+/**
+  * Checks if UploadProgress bar extension is available.
+  *
+  * @return boolean true if UploadProgress extension is available,
+  *                 false if it is not
+  */
+function PMA_Import_progressCheck()
+{
+    if (! function_exists("uploadprogress_get_info")
+        || ! function_exists('getallheaders')
+    ) {
+        return false;
+    }
+    return true;
+}
+
+/**
+  * Checks if PHP 5.4 session upload-progress feature is available.
+  *
+  * @return boolean true if PHP 5.4 session upload-progress is available,
+  *                 false if it is not
+  */
+function PMA_Import_sessionCheck()
+{
+    if (PMA_PHP_INT_VERSION < 50400
+        || ! ini_get('session.upload_progress.enabled')
+    ) {
+        return false;
+    }
+    return true;
+}
+
+/**
+  * Default plugin for handling import.
+  * If no other plugin is available, noplugin is used.
+  *
+  * @return boolean true
+  */
+function PMA_Import_nopluginCheck()
+{
+    return true;
+}
+
+/**
+  * The function outputs json encoded status of uploaded.
+  * It uses PMA_getUploadStatus, which is defined in plugin's file.
+  *
+  * @param string $id ID of transfer, usually $upload_id
+  *                   from display_import_ajax.lib.php
+  *
+  * @return void
+  */
+function PMA_importAjaxStatus($id)
+{
+    header('Content-type: application/json');
+    echo json_encode(
+        $_SESSION[$GLOBALS['SESSION_KEY']]['handler']::getUploadStatus($id)
+    );
+}
+?>