279 lines
8.9 KiB
PHP
279 lines
8.9 KiB
PHP
<?php
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// +----------------------------------------------------------------------
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// | 小说系统 [ WE CAN DO IT JUST THINK IT ]
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// +----------------------------------------------------------------------
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namespace app\admin\controller;
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use app\common\controller\Admin;
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class Database extends Admin {
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/**
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* 数据库备份/还原列表
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* @param String $type import-还原，export-备份
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function index($type = null) {
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switch ($type) {
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/* 数据还原 */
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case 'import':
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//列出备份文件列表
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$path = config('data_backup_path');
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if (!is_dir($path)) {
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mkdir($path, 0755, true);
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}
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$path = realpath($path);
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$flag = \FilesystemIterator::KEY_AS_FILENAME;
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$glob = new \FilesystemIterator($path, $flag);
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$list = array();
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foreach ($glob as $name => $file) {
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if (preg_match('/^\d{8,8}-\d{6,6}-\d+\.sql(?:\.gz)?$/', $name)) {
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$name = sscanf($name, '%4s%2s%2s-%2s%2s%2s-%d');
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$date = "{$name[0]}-{$name[1]}-{$name[2]}";
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$time = "{$name[3]}:{$name[4]}:{$name[5]}";
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$part = $name[6];
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if (isset($list["{$date} {$time}"])) {
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$info = $list["{$date} {$time}"];
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$info['part'] = max($info['part'], $part);
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$info['size'] = $info['size'] + $file->getSize();
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} else {
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$info['part'] = $part;
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$info['size'] = $file->getSize();
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}
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$extension = strtoupper(pathinfo($file->getFilename(), PATHINFO_EXTENSION));
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$info['compress'] = ($extension === 'SQL') ? '-' : $extension;
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$info['time'] = strtotime("{$date} {$time}");
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$list["{$date} {$time}"] = $info;
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}
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}
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$title = '数据还原';
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break;
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/* 数据备份 */
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case 'export':
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$Db = \think\Db::connect();
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$list = $Db->query('SHOW TABLE STATUS');
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$list = array_map('array_change_key_case', $list);
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$title = '数据备份';
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break;
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default:
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return $this->error('参数错误！');
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}
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//渲染模板
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$this->setMeta($title);
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$this->assign('list', $list);
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return $this->fetch($type);
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}
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/**
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* 优化表
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* @param String $tables 表名
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function optimize($tables = null) {
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if ($tables) {
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$Db = \think\Db::connect();
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if (is_array($tables)) {
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$tables = implode('`,`', $tables);
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$list = $Db->query("OPTIMIZE TABLE `{$tables}`");
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if ($list) {
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return $this->success("数据表优化完成！");
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} else {
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return $this->error("数据表优化出错请重试！");
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}
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} else {
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$list = $Db->query("OPTIMIZE TABLE `{$tables}`");
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if ($list) {
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return $this->success("数据表'{$tables}'优化完成！");
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} else {
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return $this->error("数据表'{$tables}'优化出错请重试！");
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}
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}
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} else {
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return $this->error("请指定要优化的表！");
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}
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}
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/**
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* 修复表
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* @param String $tables 表名
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function repair($tables = null) {
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if ($tables) {
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$Db = \think\Db::connect();
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if (is_array($tables)) {
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$tables = implode('`,`', $tables);
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$list = $Db->query("REPAIR TABLE `{$tables}`");
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if ($list) {
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return $this->success("数据表修复完成！");
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} else {
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return $this->error("数据表修复出错请重试！");
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}
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} else {
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$list = $Db->query("REPAIR TABLE `{$tables}`");
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if ($list) {
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return $this->success("数据表'{$tables}'修复完成！");
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} else {
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return $this->error("数据表'{$tables}'修复出错请重试！");
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}
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}
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} else {
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return $this->error("请指定要修复的表！");
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}
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}
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/**
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* 删除备份文件
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* @param Integer $time 备份时间
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function del($time = 0) {
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if ($time) {
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$name = date('Ymd-His', $time) . '-*.sql*';
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$path = realpath(config('DATA_BACKUP_PATH')) . DIRECTORY_SEPARATOR . $name;
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array_map("unlink", glob($path));
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if (count(glob($path))) {
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return $this->error('备份文件删除失败，请检查权限！');
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} else {
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return $this->success('备份文件删除成功！');
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}
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} else {
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return $this->error('参数错误！');
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}
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}
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/**
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* 备份数据库
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* @param String $tables 表名
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* @param Integer $id 表ID
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* @param Integer $start 起始行数
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function export($tables = null, $id = null, $start = null) {
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if (IS_POST && !empty($tables) && is_array($tables)) {
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//初始化
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$path = config('data_backup_path');
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if (!is_dir($path)) {
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mkdir($path, 0755, true);
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}
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//读取备份配置
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$config = array('path' => realpath($path) . DIRECTORY_SEPARATOR, 'part' => config('data_backup_part_size'), 'compress' => config('data_backup_compress'), 'level' => config('data_backup_compress_level'));
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//检查是否有正在执行的任务
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$lock = "{$config['path']}backup.lock";
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if (is_file($lock)) {
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return $this->error('检测到有一个备份任务正在执行，请稍后再试！');
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} else {
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//创建锁文件
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file_put_contents($lock, time());
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}
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//检查备份目录是否可写
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if (!is_writeable($config['path'])) {
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return $this->error('备份目录不存在或不可写，请检查后重试！');
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}
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session('backup_config', $config);
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//生成备份文件信息
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$file = array('name' => date('Ymd-His', time()), 'part' => 1);
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session('backup_file', $file);
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//缓存要备份的表
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session('backup_tables', $tables);
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//创建备份文件
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$Database = new \com\Database($file, $config);
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if (false !== $Database->create()) {
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$tab = array('id' => 0, 'start' => 0);
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return $this->success('初始化成功！', '', array('tables' => $tables, 'tab' => $tab));
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} else {
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return $this->error('初始化失败，备份文件创建失败！');
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}
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} elseif (IS_GET && is_numeric($id) && is_numeric($start)) {
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//备份数据
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$tables = session('backup_tables');
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//备份指定表
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$Database = new \com\Database(session('backup_file'), session('backup_config'));
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$start = $Database->backup($tables[$id], $start);
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if (false === $start) {
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//出错
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return $this->error('备份出错！');
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} elseif (0 === $start) {
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//下一表
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if (isset($tables[++$id])) {
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$tab = array('id' => $id, 'start' => 0);
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return $this->success('备份完成！', '', array('tab' => $tab));
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} else {
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//备份完成，清空缓存
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unlink(session('backup_config.path') . 'backup.lock');
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session('backup_tables', null);
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session('backup_file', null);
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session('backup_config', null);
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return $this->success('备份完成！');
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}
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} else {
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$tab = array('id' => $id, 'start' => $start[0]);
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$rate = floor(100 * ($start[0] / $start[1]));
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return $this->success("正在备份...({$rate}%)", '', array('tab' => $tab));
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}
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} else {
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//出错
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return $this->error('参数错误！');
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}
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}
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/**
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* 还原数据库
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* @author 麦当苗儿 <zuojiazi@vip.qq.com>
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*/
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public function import($time = 0, $part = null, $start = null) {
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if (is_numeric($time) && is_null($part) && is_null($start)) {
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//初始化
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//获取备份文件信息
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$name = date('Ymd-His', $time) . '-*.sql*';
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$path = realpath(config('data_backup_path')) . DIRECTORY_SEPARATOR . $name;
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$files = glob($path);
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$list = array();
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foreach ($files as $name) {
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$basename = basename($name);
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$match = sscanf($basename, '%4s%2s%2s-%2s%2s%2s-%d');
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$gz = preg_match('/^\d{8,8}-\d{6,6}-\d+\.sql.gz$/', $basename);
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$list[$match[6]] = array($match[6], $name, $gz);
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}
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ksort($list);
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//检测文件正确性
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$last = end($list);
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if (count($list) === $last[0]) {
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session('backup_list', $list); //缓存备份列表
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return $this->success('初始化完成！', '', array('part' => 1, 'start' => 0));
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} else {
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return $this->error('备份文件可能已经损坏，请检查！');
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}
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} elseif (is_numeric($part) && is_numeric($start)) {
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$list = session('backup_list');
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$db = new \com\Database($list[$part], array('path' => realpath(config('data_backup_path')) . DIRECTORY_SEPARATOR, 'compress' => $list[$part][2]));
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$start = $db->import($start);
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if (false === $start) {
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return $this->error('还原数据出错！');
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} elseif (0 === $start) {
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//下一卷
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if (isset($list[++$part])) {
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$data = array('part' => $part, 'start' => 0);
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return $this->success("正在还原...#{$part}", '', $data);
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} else {
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session('backup_list', null);
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return $this->success('还原完成！');
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}
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} else {
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$data = array('part' => $part, 'start' => $start[0]);
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if ($start[1]) {
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$rate = floor(100 * ($start[0] / $start[1]));
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return $this->success("正在还原...#{$part} ({$rate}%)", '', $data);
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} else {
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$data['gz'] = 1;
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return $this->success("正在还原...#{$part}", '', $data);
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}
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}
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} else {
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return $this->error('参数错误！');
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}
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}
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} |