Exemple #1
0
/**
 * Dumps the database.
 *
 * What it does:
 * - It writes all of the database to standard output.
 * - It uses gzip compression if compress is set in the URL/post data.
 * - It may possibly time out, and mess up badly if you were relying on it. :P
 * - The data dumped depends on whether "struct" and "data" are passed.
 * - It is called from ManageMaintenance.controller.php.
 */
function DumpDatabase2()
{
    global $db_name, $scripturl, $modSettings, $db_prefix, $db_show_debug;
    // We'll need a db to dump :P
    $database = database();
    // We don't need debug when dumping the database
    $modSettings['disableQueryCheck'] = true;
    $db_show_debug = false;
    // You can't dump nothing!
    if (!isset($_REQUEST['struct']) && !isset($_REQUEST['data'])) {
        $_REQUEST['data'] = true;
    }
    // Attempt to stop from dying...
    @set_time_limit(600);
    $time_limit = ini_get('max_execution_time');
    $start_time = time();
    // @todo ... fail on not getting the requested memory?
    setMemoryLimit('256M');
    $memory_limit = memoryReturnBytes(ini_get('memory_limit')) / 4;
    $current_used_memory = 0;
    $db_backup = '';
    $output_function = 'un_compressed';
    @ob_end_clean();
    // Start saving the output... (don't do it otherwise for memory reasons.)
    if (isset($_REQUEST['compress']) && function_exists('gzencode')) {
        $output_function = 'gzencode';
        // Send faked headers so it will just save the compressed output as a gzip.
        header('Content-Type: application/x-gzip');
        header('Accept-Ranges: bytes');
        header('Content-Encoding: none');
        // Gecko browsers... don't like this. (Mozilla, Firefox, etc.)
        if (!isBrowser('gecko')) {
            header('Content-Transfer-Encoding: binary');
        }
        // The file extension will include .gz...
        $extension = '.sql.gz';
    } else {
        // Get rid of the gzipping alreading being done.
        if (!empty($modSettings['enableCompressedOutput'])) {
            @ob_end_clean();
        } elseif (ob_get_length() != 0) {
            ob_clean();
        }
        // Tell the client to save this file, even though it's text.
        header('Content-Type: ' . (isBrowser('ie') || isBrowser('opera') ? 'application/octetstream' : 'application/octet-stream'));
        header('Content-Encoding: none');
        // This time the extension should just be .sql.
        $extension = '.sql';
    }
    // This should turn off the session URL parser.
    $scripturl = '';
    // Send the proper headers to let them download this file.
    header('Content-Disposition: attachment; filename="' . $db_name . '-' . (empty($_REQUEST['struct']) ? 'data' : (empty($_REQUEST['data']) ? 'structure' : 'complete')) . '_' . strftime('%Y-%m-%d') . $extension . '"');
    header('Cache-Control: private');
    header('Connection: close');
    // This makes things simpler when using it so very very often.
    $crlf = "\r\n";
    // SQL Dump Header.
    $db_chunks = '-- ==========================================================' . $crlf . '--' . $crlf . '-- Database dump of tables in `' . $db_name . '`' . $crlf . '-- ' . standardTime(time(), false) . $crlf . '--' . $crlf . '-- ==========================================================' . $crlf . $crlf;
    // Get all tables in the database....for our installation
    $real_prefix = preg_match('~^(`?)(.+?)\\1\\.(.*?)$~', $db_prefix, $match) === 1 ? $match[3] : $db_prefix;
    $tables = $database->db_list_tables(false, $real_prefix . '%');
    // Dump each table.
    foreach ($tables as $tableName) {
        // Are we dumping the structures?
        if (isset($_REQUEST['struct'])) {
            $db_chunks .= $crlf . '--' . $crlf . '-- Table structure for table `' . $tableName . '`' . $crlf . '--' . $crlf . $crlf . $database->db_table_sql($tableName) . ';' . $crlf;
        } else {
            // This is needed to speedup things later
            $database->db_table_sql($tableName);
        }
        // How about the data?
        if (!isset($_REQUEST['data']) || substr($tableName, -10) == 'log_errors') {
            continue;
        }
        $first_round = true;
        $close_table = false;
        // Are there any rows in this table?
        while ($get_rows = $database->insert_sql($tableName, $first_round)) {
            if (empty($get_rows)) {
                break;
            }
            // Time is what we need here!
            if (function_exists('apache_reset_timeout')) {
                @apache_reset_timeout();
            } elseif (!empty($time_limit) && $start_time + $time_limit - 20 > time()) {
                $start_time = time();
                @set_time_limit(150);
            }
            // for the first pass, start the output with a custom line...
            if ($first_round) {
                $db_chunks .= $crlf . '--' . $crlf . '-- Dumping data in `' . $tableName . '`' . $crlf . '--' . $crlf . $crlf;
                $first_round = false;
            }
            $db_chunks .= $get_rows;
            $current_used_memory += Util::strlen($db_chunks);
            $db_backup .= $db_chunks;
            unset($db_chunks);
            $db_chunks = '';
            if ($current_used_memory > $memory_limit) {
                echo $output_function($db_backup);
                $current_used_memory = 0;
                // This is probably redundant
                unset($db_backup);
                $db_backup = '';
            }
            $close_table = true;
        }
        // No rows to get - skip it.
        if ($close_table) {
            $db_backup .= '-- --------------------------------------------------------' . $crlf;
        }
    }
    // write the last line
    $db_backup .= $crlf . '-- Done' . $crlf;
    echo $output_function($db_backup);
    exit;
}
 /**
  * Retrieve and return the administration settings for attachments.
  */
 private function _settings()
 {
     global $modSettings, $txt, $scripturl, $context;
     require_once SUBSDIR . '/Attachments.subs.php';
     // Get the current attachment directory.
     $modSettings['attachmentUploadDir'] = unserialize($modSettings['attachmentUploadDir']);
     $context['attachmentUploadDir'] = $modSettings['attachmentUploadDir'][$modSettings['currentAttachmentUploadDir']];
     // First time here?
     if (empty($modSettings['attachment_basedirectories']) && $modSettings['currentAttachmentUploadDir'] == 1 && count($modSettings['attachmentUploadDir']) == 1) {
         $modSettings['attachmentUploadDir'] = $modSettings['attachmentUploadDir'][1];
     }
     // If not set, show a default path for the base directory
     if (!isset($_GET['save']) && empty($modSettings['basedirectory_for_attachments'])) {
         $modSettings['basedirectory_for_attachments'] = $context['attachmentUploadDir'];
     }
     $context['valid_upload_dir'] = is_dir($context['attachmentUploadDir']) && is_writable($context['attachmentUploadDir']);
     if (!empty($modSettings['automanage_attachments'])) {
         $context['valid_basedirectory'] = !empty($modSettings['basedirectory_for_attachments']) && is_writable($modSettings['basedirectory_for_attachments']);
     } else {
         $context['valid_basedirectory'] = true;
     }
     // A bit of razzle dazzle with the $txt strings. :)
     $txt['basedirectory_for_attachments_warning'] = str_replace('{attach_repair_url}', $scripturl . '?action=admin;area=manageattachments;sa=attachpaths', $txt['basedirectory_for_attachments_warning']);
     $txt['attach_current_dir_warning'] = str_replace('{attach_repair_url}', $scripturl . '?action=admin;area=manageattachments;sa=attachpaths', $txt['attach_current_dir_warning']);
     $txt['attachment_path'] = $context['attachmentUploadDir'];
     $txt['basedirectory_for_attachments_path'] = isset($modSettings['basedirectory_for_attachments']) ? $modSettings['basedirectory_for_attachments'] : '';
     $txt['use_subdirectories_for_attachments_note'] = empty($modSettings['attachment_basedirectories']) || empty($modSettings['use_subdirectories_for_attachments']) ? $txt['use_subdirectories_for_attachments_note'] : '';
     $txt['attachmentUploadDir_multiple_configure'] = '<a href="' . $scripturl . '?action=admin;area=manageattachments;sa=attachpaths">[' . $txt['attachmentUploadDir_multiple_configure'] . ']</a>';
     $txt['attach_current_dir'] = empty($modSettings['automanage_attachments']) ? $txt['attach_current_dir'] : $txt['attach_last_dir'];
     $txt['attach_current_dir_warning'] = $txt['attach_current_dir'] . $txt['attach_current_dir_warning'];
     $txt['basedirectory_for_attachments_warning'] = $txt['basedirectory_for_attachments_current'] . $txt['basedirectory_for_attachments_warning'];
     // Perform a test to see if the GD module or ImageMagick are installed.
     $testImg = get_extension_funcs('gd') || class_exists('Imagick');
     // See if we can find if the server is set up to support the attacment limits
     $post_max_size = ini_get('post_max_size');
     $upload_max_filesize = ini_get('upload_max_filesize');
     $testPM = !empty($post_max_size) ? memoryReturnBytes($post_max_size) >= (isset($modSettings['attachmentPostLimit']) ? $modSettings['attachmentPostLimit'] * 1024 : 0) : true;
     $testUM = !empty($upload_max_filesize) ? memoryReturnBytes($upload_max_filesize) >= (isset($modSettings['attachmentSizeLimit']) ? $modSettings['attachmentSizeLimit'] * 1024 : 0) : true;
     $config_vars = array(array('title', 'attachment_manager_settings'), array('select', 'attachmentEnable', array($txt['attachmentEnable_deactivate'], $txt['attachmentEnable_enable_all'], $txt['attachmentEnable_disable_new'])), '', array('check', 'attachmentRecodeLineEndings'), '', array('select', 'automanage_attachments', array(0 => $txt['attachments_normal'], 1 => $txt['attachments_auto_space'], 2 => $txt['attachments_auto_years'], 3 => $txt['attachments_auto_months'], 4 => $txt['attachments_auto_16'])), array('check', 'use_subdirectories_for_attachments', 'subtext' => $txt['use_subdirectories_for_attachments_note']), empty($modSettings['attachment_basedirectories']) ? array('text', 'basedirectory_for_attachments', 40) : array('var_message', 'basedirectory_for_attachments', 'message' => 'basedirectory_for_attachments_path', 'invalid' => empty($context['valid_basedirectory']), 'text_label' => !empty($context['valid_basedirectory']) ? $txt['basedirectory_for_attachments_current'] : $txt['basedirectory_for_attachments_warning']), empty($modSettings['attachment_basedirectories']) && $modSettings['currentAttachmentUploadDir'] == 1 && count($modSettings['attachmentUploadDir']) == 1 ? array('text', 'attachmentUploadDir', 'subtext' => $txt['attachmentUploadDir_multiple_configure'], 40, 'invalid' => !$context['valid_upload_dir']) : array('var_message', 'attach_current_directory', 'subtext' => $txt['attachmentUploadDir_multiple_configure'], 'message' => 'attachment_path', 'invalid' => empty($context['valid_upload_dir']), 'text_label' => !empty($context['valid_upload_dir']) ? $txt['attach_current_dir'] : $txt['attach_current_dir_warning']), array('int', 'attachmentDirFileLimit', 'subtext' => $txt['zero_for_no_limit'], 6), array('int', 'attachmentDirSizeLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), '', array('warning', empty($testPM) ? 'attachment_postsize_warning' : ''), array('int', 'attachmentPostLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), array('warning', empty($testUM) ? 'attachment_filesize_warning' : ''), array('int', 'attachmentSizeLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), array('int', 'attachmentNumPerPostLimit', 'subtext' => $txt['zero_for_no_limit'], 6), array('title', 'attachment_security_settings'), array('check', 'attachmentCheckExtensions'), array('text', 'attachmentExtensions', 40), '', array('warning', empty($testImg) ? 'attachment_img_enc_warning' : ''), array('check', 'attachment_image_reencode'), '', array('warning', 'attachment_image_paranoid_warning'), array('check', 'attachment_image_paranoid'), array('title', 'attachment_thumbnail_settings'), array('check', 'attachmentShowImages'), array('check', 'attachmentThumbnails'), array('check', 'attachment_thumb_png'), array('check', 'attachment_thumb_memory', 'subtext' => $txt['attachment_thumb_memory_note1'], 'postinput' => $txt['attachment_thumb_memory_note2']), array('warning', 'attachment_thumb_memory_note'), array('text', 'attachmentThumbWidth', 6), array('text', 'attachmentThumbHeight', 6), '', array('int', 'max_image_width', 'subtext' => $txt['zero_for_no_limit']), array('int', 'max_image_height', 'subtext' => $txt['zero_for_no_limit']));
     // Add new settings with a nice hook, makes them available for admin settings search as well
     call_integration_hook('integrate_modify_attachment_settings', array(&$config_vars));
     return $config_vars;
 }
Exemple #3
0
/**
 * Allows to show/change attachment settings.
 * This is the default sub-action of the 'Attachments and Avatars' center.
 * Called by index.php?action=admin;area=manageattachments;sa=attachments.
 *
 * @param bool $return_config = false
 * @uses 'attachments' sub template.
 */
function ManageAttachmentSettings($return_config = false)
{
    global $txt, $modSettings, $scripturl, $context, $options, $sourcedir, $boarddir;
    require_once $sourcedir . '/Attachments.php';
    // Get the current attachment directory.
    $modSettings['attachmentUploadDir'] = unserialize($modSettings['attachmentUploadDir']);
    $context['attachmentUploadDir'] = $modSettings['attachmentUploadDir'][$modSettings['currentAttachmentUploadDir']];
    // If not set, show a default path for the base directory
    if (!isset($_GET['save']) && empty($modSettings['basedirectory_for_attachments'])) {
        if (!empty($modSettings['currentAttachmentUploadDir'])) {
            $modSettings['basedirectory_for_attachments'] = $modSettings['attachmentUploadDir'][1];
        } else {
            $modSettings['basedirectory_for_attachments'] = $context['attachmentUploadDir'];
        }
    }
    $context['valid_upload_dir'] = is_dir($context['attachmentUploadDir']) && is_writable($context['attachmentUploadDir']);
    if (!empty($modSettings['automanage_attachments'])) {
        $context['valid_basedirectory'] = !empty($modSettings['basedirectory_for_attachments']) && is_writable($modSettings['basedirectory_for_attachments']);
    } else {
        $context['valid_basedirectory'] = true;
    }
    // A bit of razzle dazzle with the $txt strings. :)
    $txt['attachment_path'] = $context['attachmentUploadDir'];
    $txt['basedirectory_for_attachments_path'] = isset($modSettings['basedirectory_for_attachments']) ? $modSettings['basedirectory_for_attachments'] : '';
    $txt['use_subdirectories_for_attachments_note'] = empty($modSettings['attachment_basedirectories']) || empty($modSettings['use_subdirectories_for_attachments']) ? $txt['use_subdirectories_for_attachments_note'] : '';
    $txt['attachmentUploadDir_multiple_configure'] = '<a href="' . $scripturl . '?action=admin;area=manageattachments;sa=attachpaths">[' . $txt['attachmentUploadDir_multiple_configure'] . ']</a>';
    $txt['attach_current_dir'] = empty($modSettings['automanage_attachments']) ? $txt['attach_current_dir'] : $txt['attach_last_dir'];
    $txt['attach_current_dir_warning'] = $txt['attach_current_dir'] . $txt['attach_current_dir_warning'];
    $txt['basedirectory_for_attachments_warning'] = $txt['basedirectory_for_attachments_current'] . $txt['basedirectory_for_attachments_warning'];
    // Perform a test to see if the GD module or ImageMagick are installed.
    $testImg = get_extension_funcs('gd') || class_exists('Imagick');
    // See if we can find if the server is set up to support the attacment limits
    $post_max_size = ini_get('post_max_size');
    $upload_max_filesize = ini_get('upload_max_filesize');
    $testPM = !empty($post_max_size) ? memoryReturnBytes($post_max_size) >= (isset($modSettings['attachmentPostLimit']) ? $modSettings['attachmentPostLimit'] * 1024 : 0) : true;
    $testUM = !empty($upload_max_filesize) ? memoryReturnBytes($upload_max_filesize) >= (isset($modSettings['attachmentSizeLimit']) ? $modSettings['attachmentSizeLimit'] * 1024 : 0) : true;
    $config_vars = array(array('title', 'attachment_manager_settings'), array('select', 'attachmentEnable', array($txt['attachmentEnable_deactivate'], $txt['attachmentEnable_enable_all'], $txt['attachmentEnable_disable_new'])), '', array('check', 'attachmentRecodeLineEndings'), '', array('select', 'automanage_attachments', array(0 => $txt['attachments_normal'], 1 => $txt['attachments_auto_space'], 2 => $txt['attachments_auto_years'], 3 => $txt['attachments_auto_months'], 4 => $txt['attachments_auto_16'])), array('check', 'use_subdirectories_for_attachments', 'subtext' => $txt['use_subdirectories_for_attachments_note']), empty($modSettings['attachment_basedirectories']) ? array('text', 'basedirectory_for_attachments', 40) : array('var_message', 'basedirectory_for_attachments', 'message' => 'basedirectory_for_attachments_path', 'invalid' => empty($context['valid_basedirectory']), 'text_label' => !empty($context['valid_basedirectory']) ? $txt['basedirectory_for_attachments_current'] : $txt['basedirectory_for_attachments_warning']), array('var_message', 'attach_current_directory', 'subtext' => $txt['attachmentUploadDir_multiple_configure'], 'message' => 'attachment_path', 'invalid' => empty($context['valid_upload_dir']), 'text_label' => !empty($context['valid_upload_dir']) ? $txt['attach_current_dir'] : $txt['attach_current_dir_warning']), array('int', 'attachmentDirFileLimit', 'subtext' => $txt['zero_for_no_limit'], 6), array('int', 'attachmentDirSizeLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), '', array('int', 'attachmentPostLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), array('warning', empty($testPM) ? 'attachment_postsize_warning' : ''), array('int', 'attachmentSizeLimit', 'subtext' => $txt['zero_for_no_limit'], 6, 'postinput' => $txt['kilobyte']), array('warning', empty($testUM) ? 'attachment_filesize_warning' : ''), array('int', 'attachmentNumPerPostLimit', 'subtext' => $txt['zero_for_no_limit'], 6), array('title', 'attachment_security_settings'), array('check', 'attachmentCheckExtensions'), array('text', 'attachmentExtensions', 40), '', array('warning', empty($testImg) ? 'attachment_img_enc_warning' : ''), array('check', 'attachment_image_reencode'), '', array('warning', 'attachment_image_paranoid_warning'), array('check', 'attachment_image_paranoid'), array('title', 'attachment_thumbnail_settings'), array('check', 'attachmentShowImages'), array('check', 'attachmentThumbnails'), array('check', 'attachment_thumb_png'), array('check', 'attachment_thumb_memory', 'subtext' => $txt['attachment_thumb_memory_note1'], 'postinput' => $txt['attachment_thumb_memory_note2']), array('warning', 'attachment_thumb_memory_note'), array('text', 'attachmentThumbWidth', 6), array('text', 'attachmentThumbHeight', 6), '', array('int', 'max_image_width', 'subtext' => $txt['zero_for_no_limit']), array('int', 'max_image_height', 'subtext' => $txt['zero_for_no_limit']));
    $context['settings_post_javascript'] = '
	var storing_type = document.getElementById(\'automanage_attachments\');
	var base_dir = document.getElementById(\'use_subdirectories_for_attachments\');

	createEventListener(storing_type)
	storing_type.addEventListener("change", toggleSubDir, false);
	createEventListener(base_dir)
	base_dir.addEventListener("change", toggleSubDir, false);
	toggleSubDir();';
    call_integration_hook('integrate_modify_attachment_settings', array(&$config_vars));
    if ($return_config) {
        return $config_vars;
    }
    // These are very likely to come in handy! (i.e. without them we're doomed!)
    require_once $sourcedir . '/ManagePermissions.php';
    require_once $sourcedir . '/ManageServer.php';
    // Saving settings?
    if (isset($_GET['save'])) {
        checkSession();
        if (!empty($_POST['use_subdirectories_for_attachments'])) {
            if (isset($_POST['use_subdirectories_for_attachments']) && empty($_POST['basedirectory_for_attachments'])) {
                $_POST['basedirectory_for_attachments'] = !empty($modSettings['basedirectory_for_attachments']) ? $modSettings['basedirectory_for_attachments'] : $boarddir;
            }
            if (!empty($_POST['use_subdirectories_for_attachments']) && !empty($modSettings['attachment_basedirectories'])) {
                if (!is_array($modSettings['attachment_basedirectories'])) {
                    $modSettings['attachment_basedirectories'] = unserialize($modSettings['attachment_basedirectories']);
                }
            } else {
                $modSettings['attachment_basedirectories'] = array();
            }
            if (!empty($_POST['use_subdirectories_for_attachments']) && !empty($_POST['basedirectory_for_attachments']) && !in_array($_POST['basedirectory_for_attachments'], $modSettings['attachment_basedirectories'])) {
                $currentAttachmentUploadDir = $modSettings['currentAttachmentUploadDir'];
                if (!in_array($_POST['basedirectory_for_attachments'], $modSettings['attachmentUploadDir'])) {
                    if (!automanage_attachments_create_directory($_POST['basedirectory_for_attachments'])) {
                        $_POST['basedirectory_for_attachments'] = $modSettings['basedirectory_for_attachments'];
                    }
                }
                if (!in_array($_POST['basedirectory_for_attachments'], $modSettings['attachment_basedirectories'])) {
                    $modSettings['attachment_basedirectories'][$modSettings['currentAttachmentUploadDir']] = $_POST['basedirectory_for_attachments'];
                    updateSettings(array('attachment_basedirectories' => serialize($modSettings['attachment_basedirectories']), 'currentAttachmentUploadDir' => $currentAttachmentUploadDir));
                }
            }
        }
        call_integration_hook('integrate_save_attachment_settings');
        saveDBSettings($config_vars);
        redirectexit('action=admin;area=manageattachments;sa=attachments');
    }
    $context['post_url'] = $scripturl . '?action=admin;area=manageattachments;save;sa=attachments';
    prepareDBSettingContext($config_vars);
    $context['sub_template'] = 'show_settings';
}
 /**
  * Supporting function for the database maintenance area.
  */
 public function action_database()
 {
     global $context, $modSettings, $maintenance, $iknowitmaybeunsafe;
     // We need this, really..
     require_once SUBSDIR . '/Maintenance.subs.php';
     // Set up the sub-template
     $context['sub_template'] = 'maintain_database';
     if (DB_TYPE == 'MySQL') {
         $body_type = fetchBodyType();
         $context['convert_to'] = $body_type == 'text' ? 'mediumtext' : 'text';
         $context['convert_to_suggest'] = $body_type != 'text' && !empty($modSettings['max_messageLength']) && $modSettings['max_messageLength'] < 65536;
     }
     // Check few things to give advices before make a backup
     // If safe mod is enable the external tool is *always* the best (and probably the only) solution
     $context['safe_mode_enable'] = @ini_get('safe_mode');
     // This is just a...guess
     $messages = countMessages();
     // 256 is what we use in the backup script
     setMemoryLimit('256M');
     $memory_limit = memoryReturnBytes(ini_get('memory_limit')) / (1024 * 1024);
     // Zip limit is set to more or less 1/4th the size of the available memory * 1500
     // 1500 is an estimate of the number of messages that generates a database of 1 MB (yeah I know IT'S AN ESTIMATION!!!)
     // Why that? Because the only reliable zip package is the one sent out the first time,
     // so when the backup takes 1/5th (just to stay on the safe side) of the memory available
     $zip_limit = $memory_limit * 1500 / 5;
     // Here is more tricky: it depends on many factors, but the main idea is that
     // if it takes "too long" the backup is not reliable. So, I know that on my computer it take
     // 20 minutes to backup 2.5 GB, of course my computer is not representative, so I'll multiply by 4 the time.
     // I would consider "too long" 5 minutes (I know it can be a long time, but let's start with that):
     // 80 minutes for a 2.5 GB and a 5 minutes limit means 160 MB approx
     $plain_limit = 240000;
     // Last thing: are we able to gain time?
     $current_time_limit = ini_get('max_execution_time');
     @set_time_limit(159);
     //something strange just to be sure
     $new_time_limit = ini_get('max_execution_time');
     @set_time_limit($current_time_limit);
     $context['use_maintenance'] = 0;
     // External tool if:
     //  * safe_mode enable OR
     //  * cannot change the execution time OR
     //  * cannot reset timeout
     if ($context['safe_mode_enable'] || empty($new_time_limit) || $current_time_limit == $new_time_limit && !function_exists('apache_reset_timeout')) {
         $context['suggested_method'] = 'use_external_tool';
     } elseif ($zip_limit < $plain_limit && $messages < $zip_limit) {
         $context['suggested_method'] = 'zipped_file';
     } elseif ($zip_limit > $plain_limit || $zip_limit < $plain_limit && $plain_limit < $messages) {
         $context['suggested_method'] = 'use_external_tool';
         $context['use_maintenance'] = empty($maintenance) ? 2 : 0;
     } else {
         $context['use_maintenance'] = 1;
         $context['suggested_method'] = 'plain_text';
     }
     loadTemplate('Packages');
     loadLanguage('Packages');
     // $context['package_ftp'] may be set action_backup_display when an error occur
     if (!isset($context['package_ftp'])) {
         $context['package_ftp'] = array('form_elements_only' => true, 'server' => '', 'port' => '', 'username' => '', 'path' => '', 'error' => '');
     }
     $context['skip_security'] = !empty($iknowitmaybeunsafe);
 }
Exemple #5
0
/**
 * Helper function to set the system memory to a needed value
 *
 * What it does:
 * - If the needed memory is greater than current, will attempt to get more
 * - if in_use is set to true, will also try to take the current memory usage in to account
 *
 * @param string $needed The amount of memory to request, if needed, like 256M
 * @param bool $in_use Set to true to account for current memory usage of the script
 * @return boolean true if we have at least the needed memory
 */
function setMemoryLimit($needed, $in_use = false)
{
    // Everything in bytes
    $memory_current = memoryReturnBytes(ini_get('memory_limit'));
    $memory_needed = memoryReturnBytes($needed);
    // Should we account for how much is currently being used?
    if ($in_use) {
        $memory_needed += memory_get_usage();
    }
    // If more is needed, request it
    if ($memory_current < $memory_needed) {
        @ini_set('memory_limit', ceil($memory_needed / 1048576) . 'M');
        $memory_current = memoryReturnBytes(ini_get('memory_limit'));
    }
    $memory_current = max($memory_current, memoryReturnBytes(get_cfg_var('memory_limit')));
    // Return success or not
    return (bool) ($memory_current >= $memory_needed);
}
Exemple #6
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/**
 * Supporting function for the database maintenance area.
 */
function MaintainDatabase()
{
    global $context, $db_type, $db_character_set, $modSettings, $smcFunc, $txt, $maintenance;
    // Show some conversion options?
    $context['convert_utf8'] = $db_type == 'mysql' && (!isset($db_character_set) || $db_character_set !== 'utf8' || empty($modSettings['global_character_set']) || $modSettings['global_character_set'] !== 'UTF-8') && version_compare('4.1.2', preg_replace('~\\-.+?$~', '', $smcFunc['db_server_info']()), '<=');
    $context['convert_entities'] = $db_type == 'mysql' && isset($db_character_set, $modSettings['global_character_set']) && $db_character_set === 'utf8' && $modSettings['global_character_set'] === 'UTF-8';
    if ($db_type == 'mysql') {
        db_extend('packages');
        $colData = $smcFunc['db_list_columns']('{db_prefix}messages', true);
        foreach ($colData as $column) {
            if ($column['name'] == 'body') {
                $body_type = $column['type'];
            }
        }
        $context['convert_to'] = $body_type == 'text' ? 'mediumtext' : 'text';
        $context['convert_to_suggest'] = $body_type != 'text' && !empty($modSettings['max_messageLength']) && $modSettings['max_messageLength'] < 65536;
    }
    // Check few things to give advices before make a backup
    // If safe mod is enable the external tool is *always* the best (and probably the only) solution
    $context['safe_mode_enable'] = @ini_get('safe_mode');
    // This is just a...guess
    $result = $smcFunc['db_query']('', '
		SELECT COUNT(*)
		FROM {db_prefix}messages', array());
    list($messages) = $smcFunc['db_fetch_row']($result);
    $smcFunc['db_free_result']($result);
    // 256 is what we use in the backup script
    setMemoryLimit('256M');
    $memory_limit = memoryReturnBytes(ini_get('memory_limit')) / (1024 * 1024);
    // Zip limit is set to more or less 1/4th the size of the available memory * 1500
    // 1500 is an estimate of the number of messages that generates a database of 1 MB (yeah I know IT'S AN ESTIMATION!!!)
    // Why that? Because the only reliable zip package is the one sent out the first time,
    // so when the backup takes 1/5th (just to stay on the safe side) of the memory available
    $zip_limit = $memory_limit * 1500 / 5;
    // Here is more tricky: it depends on many factors, but the main idea is that
    // if it takes "too long" the backup is not reliable. So, I know that on my computer it take
    // 20 minutes to backup 2.5 GB, of course my computer is not representative, so I'll multiply by 4 the time.
    // I would consider "too long" 5 minutes (I know it can be a long time, but let's start with that):
    // 80 minutes for a 2.5 GB and a 5 minutes limit means 160 MB approx
    $plain_limit = 240000;
    // Last thing: are we able to gain time?
    $current_time_limit = ini_get('max_execution_time');
    @set_time_limit(159);
    //something strange just to be sure
    $new_time_limit = ini_get('max_execution_time');
    $context['use_maintenance'] = 0;
    // External tool if:
    //  * safe_mode enable OR
    //  * cannot change the execution time OR
    //  * cannot reset timeout
    if ($context['safe_mode_enable'] || empty($new_time_limit) || $current_time_limit == $new_time_limit && !function_exists('apache_reset_timeout')) {
        $context['suggested_method'] = 'use_external_tool';
    } elseif ($zip_limit < $plain_limit && $messages < $zip_limit) {
        $context['suggested_method'] = 'zipped_file';
    } elseif ($zip_limit > $plain_limit || $zip_limit < $plain_limit && $plain_limit < $messages) {
        $context['suggested_method'] = 'use_external_tool';
        $context['use_maintenance'] = empty($maintenance) ? 2 : 0;
    } else {
        $context['use_maintenance'] = 1;
        $context['suggested_method'] = 'plain_text';
    }
    if (isset($_GET['done']) && $_GET['done'] == 'convertutf8') {
        $context['maintenance_finished'] = $txt['utf8_title'];
    }
    if (isset($_GET['done']) && $_GET['done'] == 'convertentities') {
        $context['maintenance_finished'] = $txt['entity_convert_title'];
    }
}