<?php
namespace app\api\controller;
use think\captcha\facade\Captcha as ThinkCaptcha;
use think\facade\Cache;
class Captcha extends BaseApi
{
/**
* 验证码
*/
public function captcha()
{
if (isset($this->params[ 'captcha_id' ]) && !empty($this->params[ 'captcha_id' ])) {
Cache::delete($this->params[ 'captcha_id' ]);
}
$captcha_data = ThinkCaptcha::create(null, true);
$captcha_id = md5(uniqid(null, true));
// 验证码10分钟有效
Cache::set($captcha_id, $captcha_data[ 'code' ], 600);
return $this->response($this->success([ 'id' => $captcha_id, 'img' => $captcha_data[ 'img' ] ]));
}
/**
* 检测验证码
* @param boolean $snapchat 阅后即焚
*/
public function checkCaptcha($snapchat = true) : array
{
if (!isset($this->params[ 'captcha_id' ]) || empty($this->params[ 'captcha_id' ])) {
return $this->error('', 'REQUEST_CAPTCHA_ID');
}
if (!isset($this->params[ 'captcha_code' ]) || empty($this->params[ 'captcha_code' ])) {
return $this->error('', 'REQUEST_CAPTCHA_CODE');
}
if ($snapchat) $captcha_data = Cache::pull($this->params[ 'captcha_id' ]);
else $captcha_data = Cache::get($this->params[ 'captcha_id' ]);
if (empty($captcha_data)) return $this->error('', 'CAPTCHA_FAILURE');
if ($this->params[ 'captcha_code' ] != $captcha_data) return $this->error('', 'CAPTCHA_ERROR');
return $this->success();
}
}