182 lines
No EOL
4.8 KiB
PHP
182 lines
No EOL
4.8 KiB
PHP
<?php
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/**
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* Simple Machines Forum (SMF)
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*
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* @package SMF
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* @author Simple Machines http://www.simplemachines.org
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* @copyright 2011 Simple Machines
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* @license http://www.simplemachines.org/about/smf/license.php BSD
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*
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* @version 2.0
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*/
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if (!defined('SMF'))
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die('Hacking attempt...');
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/*
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This file has a single job - database backup.
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void DumpDatabase2()
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- writes all of the database to standard output.
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- uses gzip compression if compress is set in the URL/post data.
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- may possibly time out in some cases.
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- the data dumped depends on whether "struct" and "data" are passed.
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- requires an administrator and the session hash by post.
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- is called from ManageMaintenance.php.
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*/
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// Dumps the database to a file.
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function DumpDatabase2()
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{
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global $db_name, $scripturl, $context, $modSettings, $crlf, $smcFunc, $db_prefix;
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// Administrators only!
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if (!allowedTo('admin_forum'))
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fatal_lang_error('no_dump_database', 'critical');
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// You can't dump nothing!
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if (!isset($_REQUEST['struct']) && !isset($_REQUEST['data']))
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$_REQUEST['data'] = true;
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checkSession('post');
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// We will need this, badly!
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db_extend();
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// Attempt to stop from dying...
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@set_time_limit(600);
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if (@ini_get('memory_limit') < 256)
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@ini_set('memory_limit', '256M');
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// Start saving the output... (don't do it otherwise for memory reasons.)
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if (isset($_REQUEST['compress']) && function_exists('gzencode'))
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{
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// Make sure we're gzipping output, but then say we're not in the header ^_^.
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if (empty($modSettings['enableCompressedOutput']))
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@ob_start('ob_gzhandler');
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// Try to clean any data already outputted.
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elseif (ob_get_length() != 0)
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{
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ob_end_clean();
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@ob_start('ob_gzhandler');
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}
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// Send faked headers so it will just save the compressed output as a gzip.
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header('Content-Type: application/x-gzip');
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header('Accept-Ranges: bytes');
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header('Content-Encoding: none');
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// Gecko browsers... don't like this. (Mozilla, Firefox, etc.)
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if (!$context['browser']['is_gecko'])
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header('Content-Transfer-Encoding: binary');
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// The file extension will include .gz...
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$extension = '.sql.gz';
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}
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else
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{
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// Get rid of the gzipping alreading being done.
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if (!empty($modSettings['enableCompressedOutput']))
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@ob_end_clean();
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// If we can, clean anything already sent from the output buffer...
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elseif (function_exists('ob_clean') && ob_get_length() != 0)
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ob_clean();
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// Tell the client to save this file, even though it's text.
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header('Content-Type: ' . ($context['browser']['is_ie'] || $context['browser']['is_opera'] ? 'application/octetstream' : 'application/octet-stream'));
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header('Content-Encoding: none');
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// This time the extension should just be .sql.
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$extension = '.sql';
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}
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// This should turn off the session URL parser.
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$scripturl = '';
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// If this database is flat file and has a handler function pass it to that.
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if (!empty($smcFunc['db_get_backup']))
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{
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$smcFunc['db_get_backup']();
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exit;
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}
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// Send the proper headers to let them download this file.
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header('Content-Disposition: filename="' . $db_name . '-' . (empty($_REQUEST['struct']) ? 'data' : (empty($_REQUEST['data']) ? 'structure' : 'complete')) . '_' . strftime('%Y-%m-%d') . $extension . '"');
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header('Cache-Control: private');
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header('Connection: close');
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// This makes things simpler when using it so very very often.
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$crlf = "\r\n";
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// SQL Dump Header.
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echo
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'-- ==========================================================', $crlf,
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'--', $crlf,
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'-- Database dump of tables in `', $db_name, '`', $crlf,
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'-- ', timeformat(time(), false), $crlf,
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'--', $crlf,
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'-- ==========================================================', $crlf,
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$crlf;
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// Get all tables in the database....
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if (preg_match('~^`(.+?)`\.(.+?)$~', $db_prefix, $match) != 0)
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{
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$db = strtr($match[1], array('`' => ''));
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$dbp = str_replace('_', '\_', $match[2]);
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}
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else
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{
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$db = false;
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$dbp = $db_prefix;
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}
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// Dump each table.
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$tables = $smcFunc['db_list_tables'](false, $db_prefix . '%');
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foreach ($tables as $tableName)
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{
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if (function_exists('apache_reset_timeout'))
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@apache_reset_timeout();
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// Are we dumping the structures?
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if (isset($_REQUEST['struct']))
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{
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echo
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$crlf,
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'--', $crlf,
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'-- Table structure for table `', $tableName, '`', $crlf,
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'--', $crlf,
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$crlf,
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$smcFunc['db_table_sql']($tableName), ';', $crlf;
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}
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// How about the data?
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if (!isset($_REQUEST['data']) || substr($tableName, -10) == 'log_errors')
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continue;
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// Are there any rows in this table?
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$get_rows = $smcFunc['db_insert_sql']($tableName);
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// No rows to get - skip it.
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if (empty($get_rows))
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continue;
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echo
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$crlf,
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'--', $crlf,
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'-- Dumping data in `', $tableName, '`', $crlf,
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'--', $crlf,
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$crlf,
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$get_rows,
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'-- --------------------------------------------------------', $crlf;
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}
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echo
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$crlf,
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'-- Done', $crlf;
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exit;
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}
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?>
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