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<?php /* vim: set expandtab sw=4 ts=4 sts=4: */ /** * Handles plugins that show the upload progress * * @package PhpMyAdmin */ declare(strict_types=1); namespace PhpMyAdmin\Display; use PhpMyAdmin\Core; /** * PhpMyAdmin\Display\ImportAjax class * * @package PhpMyAdmin */ class ImportAjax { /** * Sets up some variables for upload progress * * @return array */ public static function uploadProgressSetup() { /** * constant for differentiating 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 */ $plugins = [ // PHP 5.4 session-based upload progress is problematic, see bug 3964 //"session", "progress", "apc", "noplugin", ]; // select available plugin foreach ($plugins as $plugin) { $check = $plugin . "Check"; if (self::$check()) { $upload_class = 'PhpMyAdmin\Plugins\Import\Upload\Upload' . ucwords( $plugin ); $_SESSION[$SESSION_KEY]["handler"] = $upload_class; break; } } return [ $SESSION_KEY, $upload_id, $plugins, ]; } /** * 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 */ public static function 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 PhpMyAdmin\Plugins\Import\Upload\UploadProgress bar extension is * available. * * @return boolean true if PhpMyAdmin\Plugins\Import\Upload\UploadProgress * extension is available, false if it is not */ public static function progressCheck() { return function_exists("uploadprogress_get_info") && function_exists('getallheaders'); } /** * 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 */ public static function sessionCheck() { return ini_get('session.upload_progress.enabled'); } /** * Default plugin for handling import. * If no other plugin is available, noplugin is used. * * @return boolean true */ public static function 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 $upload_id * * @return void */ public static function status($id) { Core::headerJSON(); echo json_encode( $_SESSION[$GLOBALS['SESSION_KEY']]['handler']::getUploadStatus($id) ); } }