110 lines
2.5 KiB
PHP
110 lines
2.5 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace PhpMyAdmin\Import;
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use PhpMyAdmin\Core;
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use function function_exists;
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use function ini_get;
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use function json_encode;
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use function ucwords;
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use function uniqid;
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/**
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* Handles plugins that show the upload progress.
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*/
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final class Ajax
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{
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/**
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* Sets up some variables for upload progress
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*/
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public static function uploadProgressSetup(): array
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{
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/**
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* constant for differentiating array in $_SESSION variable
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*/
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$SESSION_KEY = '__upload_status';
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/**
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* sets default plugin for handling the import process
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*/
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$_SESSION[$SESSION_KEY]['handler'] = '';
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/**
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* unique ID for each upload
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*/
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$upload_id = uniqid('');
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/**
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* list of available plugins
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*/
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$plugins = [
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// in PHP 5.4 session-based upload progress was problematic, see closed bug 3964
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//"session",
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'progress',
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'noplugin',
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];
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// select available plugin
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foreach ($plugins as $plugin) {
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$check = $plugin . 'Check';
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if (self::$check()) {
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$upload_class = 'PhpMyAdmin\Plugins\Import\Upload\Upload' . ucwords($plugin);
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$_SESSION[$SESSION_KEY]['handler'] = $upload_class;
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break;
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}
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}
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return [
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$SESSION_KEY,
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$upload_id,
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$plugins,
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];
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}
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/**
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* Checks if PhpMyAdmin\Plugins\Import\Upload\UploadProgress bar extension is
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* available.
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*/
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public static function progressCheck(): bool
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{
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return function_exists('uploadprogress_get_info');
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}
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/**
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* Checks if PHP 5.4 session upload-progress feature is available.
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*/
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public static function sessionCheck(): bool
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{
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return ini_get('session.upload_progress.enabled') === '1';
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}
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/**
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* Default plugin for handling import.
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* If no other plugin is available, noplugin is used.
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*
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* @return true
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*/
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public static function nopluginCheck(): bool
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{
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return true;
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}
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/**
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* The function outputs json encoded status of uploaded.
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* It uses PMA_getUploadStatus, which is defined in plugin's file.
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*
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* @param string $id ID of transfer, usually $upload_id
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*/
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public static function status($id): void
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{
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Core::headerJSON();
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echo json_encode(
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$_SESSION[$GLOBALS['SESSION_KEY']]['handler']::getUploadStatus($id)
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);
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}
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}
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