yunzer/app/admin/controller/Login.php

<?php
/**
 * 后台管理系统-登录
 */
namespace app\admin\controller;
use think\App;
use app\AppApi;
use think\facade\Db;
use think\facade\View;
use think\facade\Cookie;
use think\facade\Request;
use app\admin\model\YzAdminConfig;

class Login
{
	// 登录页面
	public function index()
	{
		# 获取配置
		$YzAdminConfig = new YzAdminConfig();
		$this->config = $YzAdminConfig->getAll();
		View::assign([
			'config' => $this->config
		]);
		return View::fetch();
	}

	// 登录
	public function login()
	{
		if (Request::isPost()) {
			$account = trim(input('post.account'));
			if (empty($account)) {
				$this->returnCode('90000001');
			}
			$pattern = "/^([0-9A-Za-z-_.]+)@([0-9a-z]+.[a-z]{2,3}(.[a-z]{2})?)$/i";
			if (!preg_match($pattern, $account)) {
				$this->returnCode('90000006');
			}
			$password = trim(input('post.password'));
			if (empty($password)) {
				$this->returnCode(1, '密码不能为空');
			}
			$code = trim(input('post.code'));
			if ($code == '') {
				$this->returnCode(1, '验证码不能为空');
			}
			if (!captcha_check($code)) {
				$this->returnCode(1, '验证码错误');
			}
			$aUser = Db::table('yz_admin_user')->where('account', $account)->find();
			if (empty($aUser)) {
				$this->returnCode('90000029');
			}
			if ($aUser['status'] != 1) {
				$this->returnCode('90000030');
			}
			if ($aUser['password'] != md5($password)) {
				$this->returnCode('90000031');
			}
			$remember = input('post.remember');
			if (!empty($remember)) {
				Cookie::set('admin_id', $aUser['uid'], 60 * 60 * 24 * 7);
				Cookie::set('admin_name', $aUser['name'], 60 * 60 * 24 * 7);
			} else {
				Cookie::set('admin_id', $aUser['uid']);
				Cookie::set('admin_name', $aUser['name']);
			}
			Db::table('yz_admin_user')->where('uid', $aUser['uid'])->update(
				['login_count' => $aUser['login_count'] + 1, 'update_time' => time()]
			);
			$this->returnCode(0, [], '登陆成功');
		}
	}

	// 退出
	public function logout()
	{
		Cookie::delete('admin_id');
		Cookie::delete('admin_name');
		$this->returnCode(0, [], '退出成功');
	}

	// 返回代码
	protected function returnCode($code, $data = [], $msg = '')
	{
		header('Content-type:application/json');
		if ($code == 0) {
			$arr = array(
				'code' => $code,
				'msg' => $msg,
				'data' => $data
			);
		} else if ($code == 1) {
			$arr = array(
				'code' => 1,
				'msg' => $data
			);
		} else {
			$appapi = new AppApi();
			$arr = array(
				'code' => $code,
				'msg' => $appapi::errorTip($code)
			);
		}
		echo json_encode($arr);
		if ($code != 0) {
			exit;
		}
	}

	// 密码重置页面
	public function resetpwdindex()
	{
		return View::fetch('resetpwd');
	}

	//管理员密码重置
	public function resetpwd()
	{
		$account = trim(input('post.account'));
		if (empty($account)) {
			$this->returnCode(1, '账号不能为空');
		}

		$user = Db::table('yz_admin_user')->where('account', $account)->find();

		if (!$user) {
			$this->returnCode(1, '未找到该用户名');
		}

		// 使用md5进行密码加密处理
		$password = md5('123456');

		try {
			$res = Db::table('yz_admin_user')
				->where('account', $account)
				->update(['password' => $password]);

			if ($res === false) {
				$this->returnCode(1, '数据库更新失败');
			}

			if ($res === 0) {
				$this->returnCode(1, '密码未发生变化');
			}

			$this->returnCode(0, [], '密码重置成功');
		} catch (\Exception $e) {
			$this->returnCode(1, '系统错误：' . $e->getMessage());
		}
	}
}