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388 lines
14 KiB
388 lines
14 KiB
<?php
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namespace App\Http\Controllers\Admin;
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use Illuminate\Support\Facades\DB;
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use App\Common\ReturnData;
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use Illuminate\Http\Request;
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use App\Common\Helper;
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use App\Common\Utils\Database as DatabaseUtil;
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class DatabaseController extends BaseController
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{
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public function __construct()
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{
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parent::__construct();
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}
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public function index()
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{
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$data['list'] = $this->get_all_table();
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return view('admin.database.index', $data);
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}
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public function get_all_table()
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{
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$list = DB::select('SHOW TABLE STATUS');
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$list = object_to_array($list);
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$list = array_map('array_change_key_case', $list);
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return $list;
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}
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public function recovery()
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{
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$path = base_path() . DIRECTORY_SEPARATOR . 'database_backup';
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//判断目录是否存在
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is_writeable($path) || mkdir('./' . C("DB_PATH_NAME") . '', 0777, true);
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//列出备份文件列表
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$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}"] = $info;
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}
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}
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$this->assign('list', $list);
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$this->display();
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}
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/**
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* 优化表
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* @param String $tables 表名
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*/
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public function optimize($tables = null)
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{
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if (!$tables) {
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$tables = request('tables');
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}
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if (!$tables) {
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error_jump("请指定要优化的表");
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}
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if (is_array($tables)) {
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if (count($tables) > 5) {
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$all_table = $this->get_all_table();
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foreach ($all_table as $k => $v) {
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DB::statement("OPTIMIZE TABLE `" . $v['name'] . "`");
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}
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success_jump("数据库优化完成");
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}
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$tables = implode('`,`', $tables);
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$list = DB::statement("OPTIMIZE TABLE `{$tables}`");
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if (!$list) {
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error_jump("数据表优化出错请重试");
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}
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success_jump("数据表优化完成");
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}
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if (substr_count($tables, ',') > 5) {
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$all_table = $this->get_all_table();
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foreach ($all_table as $k => $v) {
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DB::statement("OPTIMIZE TABLE `" . $v['name'] . "`");
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}
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success_jump("数据库优化完成");
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}
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$list = DB::statement("OPTIMIZE TABLE `{$tables}`");
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if (!$list) {
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error_jump("数据表'{$tables}'优化出错请重试");
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}
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success_jump("数据表'{$tables}'优化完成");
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}
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/**
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* 修复表
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* @param String $tables 表名
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*/
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public function repair($tables = null)
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{
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if (!$tables) {
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$tables = request('tables');
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}
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if (!$tables) {
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error_jump("请指定要修复的表");
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}
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if (is_array($tables)) {
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if (count($tables) > 5) {
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$all_table = $this->get_all_table();
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foreach ($all_table as $k => $v) {
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DB::statement("REPAIR TABLE `" . $v['name'] . "`");
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}
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success_jump("数据库修复完成");
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}
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$tables = implode('`,`', $tables);
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$list = DB::statement("REPAIR TABLE `{$tables}`");
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if (!$list) {
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error_jump("数据表修复出错请重试");
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}
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success_jump("数据表修复完成");
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}
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if (substr_count($tables, ',') > 5) {
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$all_table = $this->get_all_table();
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foreach ($all_table as $k => $v) {
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DB::statement("REPAIR TABLE `" . $v['name'] . "`");
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}
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success_jump("数据库修复完成");
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}
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$list = DB::statement("REPAIR TABLE `{$tables}`");
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if (!$list) {
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error_jump("数据表'{$tables}'修复出错请重试");
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}
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success_jump("数据表'{$tables}'修复完成");
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}
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/**
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* 删除备份文件
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* @param Integer $time 备份时间
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*/
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public function del($time = 0)
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{
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if (!$time) {
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error_jump('参数错误');
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}
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$name = date('Ymd-His', $time) . '-*.sql*';
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$path = base_path() . DIRECTORY_SEPARATOR . 'database_backup' . DIRECTORY_SEPARATOR . $name;
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array_map("unlink", glob($path));
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if (count(glob($path))) {
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error_jump('备份文件删除失败，请检查权限');
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}
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success_jump('备份文件删除成功');
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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 $start 起始行数
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*/
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public function tables_backup()
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{
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$tables = request('tables');
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if (!$tables) {
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error_jump('参数错误');
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}
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$tables = explode(',', $tables);
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//初始化
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if (!(!empty($tables) && is_array($tables))) {
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error_jump('参数错误');
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}
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if (count($tables) > 5) {
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$all_table = $this->get_all_table();
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$tables = array_column($all_table, 'name');
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}
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$backup_path = base_path() . DIRECTORY_SEPARATOR . 'database_backup' . DIRECTORY_SEPARATOR;
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foreach ($tables as $table) {
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$filename = "{$backup_path}{$table}.sql";
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//判断文件是否已经存在
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if (file_exists($filename)) {
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unlink($filename);
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}
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$fp = @fopen($filename, 'a');
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//将每个表的表结构导出到文件
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$table_structure = DB::select("SHOW CREATE TABLE `{$table}`");
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$table_structure = object_to_array($table_structure);
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$sql = "\n";
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$sql .= "-- -----------------------------\n";
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$sql .= "-- Table structure for `{$table}`\n";
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$sql .= "-- -----------------------------\n";
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$sql .= "\n";
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$sql .= "DROP TABLE IF EXISTS `{$table}`;\n";
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$sql .= "\n";
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//$sql .= trim($table_structure[0]['create table']) . ";\n";
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$sql .= trim($table_structure[0]['Create Table']) . ";\n";
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$sql .= "\n";
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//将每个表的数据导出到文件
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$table_data = DB::select("select * from " . $table);
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if ($table_data) {
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$table_data = object_to_array($table_data);
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//数据量5万条以下导出
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if (count($table_data) < 50000) {
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$sqlStr = "INSERT INTO `" . $table . "` VALUES (";
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foreach ($table_data as $k => $v) {
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$keys = array_keys($v);
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foreach ($keys as $row) {
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$sqlStr .= "'" . $v[$row] . "', ";
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}
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//去掉最后一个逗号和空格
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$sqlStr = substr($sqlStr, 0, strlen($sqlStr) - 2);
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$sqlStr = $sqlStr . '), (';
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}
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//去掉最后一个逗号和空格
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$sqlStr = substr($sqlStr, 0, strlen($sqlStr) - 3);
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$sqlStr .= ";\n";
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$sql .= $sqlStr;
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}
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}
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if (false === @fwrite($fp, $sql)) {
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error_jump($table . '备份失败');
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}
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}
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success_jump('备份完成');
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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 $start 起始行数
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*/
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public function backup()
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{
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if (Helper::isPostRequest()) {
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$tables = request('tables');
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if (!$tables) {
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error_jump('参数错误');
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}
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$tables = explode(',', $tables);
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//初始化
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if (!(!empty($tables) && is_array($tables))) {
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error_jump('参数错误');
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}
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//读取备份配置
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$config = array(
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'path' => base_path() . DIRECTORY_SEPARATOR . 'database_backup' . DIRECTORY_SEPARATOR, //路径
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'part' => 20971520, // 该值用于限制压缩后的分卷最大长度。单位：B；建议设置20M
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'compress' => 1, // 压缩备份文件需要PHP环境支持gzopen,gzwrite函数 0:不压缩 1:启用压缩
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'level' => 9, // 压缩级别, 1:普通 4:一般 9:最高
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);
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//检查是否有正在执行的任务
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$lock = "{$config['path']}backup_database.lock";
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if (is_file($lock)) {
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error_jump('检测到有一个备份任务正在执行，请稍后再试');
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}
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//创建锁文件
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file_put_contents($lock, time());
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//检查备份目录是否可写 创建备份目录
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is_writeable($config['path']) || mkdir($config['path'], 0777, true);
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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(
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'name' => date('Ymd-His'),
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'part' => 1,
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);
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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 DatabaseUtil($file, $config);
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if (false !== $database->create()) {
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$tab = array('id' => 0, 'start' => 0);
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success_jump('初始化成功', '', array('tables' => $tables, 'tab' => $tab));
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}
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error_jump('初始化失败，备份文件创建失败');
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}
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$id = request('id');
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$start = request('start');
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//备份数据
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if (is_numeric($id) && is_numeric($start)) {
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error_jump('参数错误');
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}
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$tables = session('backup_tables');
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//备份指定表
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$database = new DatabaseUtil(session('backup_file'), session('backup_config'));
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$start = $database->backup($tables[$id], $start);
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if (false === $start) { //出错
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error_jump('备份出错');
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} elseif (0 === $start) { //下一表
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if (isset($tables[++$id])) {
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$tab = array('id' => $id, 'start' => 0);
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success_jump('备份完成', '', array('tab' => $tab));
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} else { //备份完成，清空缓存
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unlink(session('backup_config.path') . 'backup_database.lock');
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session('backup_tables', null);
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session('backup_file', null);
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session('backup_config', null);
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success_jump('备份完成');
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}
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} else {
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$tab = array('id' => $id, 'start' => $start[0]);
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$rate = floor(100 * ($start[0] / $start[1]));
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success_jump("正在备份...({$rate}%)", '', array('tab' => $tab));
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}
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}
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/**
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* 还原数据库
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*/
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public function import($time = 0, $part = null, $start = null)
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{
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if (is_numeric($time) && is_null($part) && is_null($start)) { //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(C('DB_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', $list); //缓存备份列表
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success_jump('初始化完成', '', array('part' => 1, 'start' => 0));
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} else {
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error_jump('备份文件可能已经损坏，请检查');
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}
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} elseif (is_numeric($part) && is_numeric($start)) {
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$list = session('backup_list');
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$db = new DatabaseUtil($list[$part], array(
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'path' => realpath(C('DB_PATH')) . DIRECTORY_SEPARATOR,
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'compress' => $list[$part][2]
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));
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$start = $db->import($start);
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if (false === $start) {
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error_jump('还原数据出错');
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} elseif (0 === $start) { //下一卷
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if (isset($list[++$part])) {
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$data = array('part' => $part, 'start' => 0);
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success_jump("正在还原...#{$part}", '', $data);
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} else {
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session('backup_list', null);
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success_jump('还原完成');
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}
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} else {
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$data = array('part' => $part, 'start' => $start[0]);
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if ($start[1]) {
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$rate = floor(100 * ($start[0] / $start[1]));
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success_jump("正在还原...#{$part} ({$rate}%)", '', $data);
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} else {
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$data['gz'] = 1;
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success_jump("正在还原...#{$part}", '', $data);
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}
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}
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} else {
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error_jump('参数错误');
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}
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}
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}
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