短信验证码发送校验类 Redis+php

<?php
class Api_Sms{
  const EXPIRE_SEC = 1800;    // 过期时间间隔
  const RESEND_SEC = 60;     // 重发时间间隔
  const ONE_DAY_FREQ = 5;    // 每日向同一个手机号发短信的次数
  const ONE_DAY_IMEI_COUNT = 3; // 每日向同一个手机号发送短信的IMEI个数
  
  public $error = array();
  
  
  /**
   * 向指定手机号发送验证码
   * @param $mobile
   * @param $imei
   * @return bool
   */
  public function sendVerifyCode($mobile, $imei) {
    if(!$this->isMobile($mobile)) {
      $this->error = array(\'code\' => -1, \'msg\' => \'这个手机号很奇葩哦，请正确输入后重试\');
      return false;
    }
  
    $redis = Api_Common::redis();
    $vcKey = \'VC_\'.$mobile;
    $limitKey = \'VC_LIMIT_\'.$mobile;
  
    // 验证码重发限制
    $data = json_decode($redis->get($vcKey), true);
    if($data && time() < $data[\'resend_expire\']) {
      $this->error = array(\'code\' => -1, \'msg\' => \'短信已在1分钟内发出，请耐心等待\');
      return false;
    }
  
    // 手机号及IMEI限制
    $sendCnt = $redis->zScore($limitKey, $imei);
    if($sendCnt && $sendCnt >= self::ONE_DAY_FREQ) {
      $this->error = array(\'code\' => -1, \'msg\' => \'没收到短信?请稍等或检查短信是否被屏蔽\');
      return false;
    }
    $imeiCnt = $redis->zCard($limitKey);
    if($imeiCnt >= self::ONE_DAY_IMEI_COUNT && !$sendCnt) {
      $this->error = array(\'code\' => -1, \'msg\' => \'已超过验证码发送设备限制\');
      return false;
    }
  
    // 获取验证码
    if(!$data) {
      $vc = strval(rand(100000, 999999));
      $data = array(\'vc\' => $vc, \'resend_expire\' => 0);
      $redis->set($vcKey, json_encode($data));
      $redis->expire($vcKey, self::EXPIRE_SEC); // 设置验证码过期时间
    }
    $vc = $data[\'vc\'];
  
    $content = \'安全验证码：\'.$vc;
    $result = $this->send($mobile, $content);
    if($result) {
      // 重设重发时限
      $data[\'resend_expire\'] = time() + self::RESEND_SEC;
      $ttl = $redis->ttl($vcKey);
      $redis->set($vcKey, json_encode($data));
      $redis->expire($vcKey, $ttl);
  
      // 设置手机号与IMEI限制
      $redis->zIncrBy($limitKey, 1, $imei);
      $redis->expireAt($limitKey, strtotime(date(\'Y-m-d\',strtotime(\'+1 day\'))));
    }
    return $result;
  }
  
  /**
   * 向指定手机号发送短信
   * @param $mobile
   * @param $content
   * @return bool
   */
  public function send($mobile, $content){
    // TODO 调用具体服务商API
    return true;
  }
  
  /**
   * 判断是否为合法手机号
   * @param $mobile
   * @return bool
   */
  private function isMobile($mobile) {
    if(preg_match(\'/^1\d{10}$/\', $mobile))
      return true;
    return false;
  }
  
  /**
   * 验证短信验证码
   * @param $mobile
   * @param $vc
   * @return bool
   */
  public function checkVerifyCode($mobile, $vc) {
    $vcKey = \'VC_\'.$mobile;
    $vcData = json_decode(Api_Common::redis()->get($vcKey), true);
    if($vcData && $vcData[\'vc\'] === $vc) {
      return true;
    }
    return false;
  }
  
  /**
   * 清除验证码
   * @param $mobile
   */
  public function cleanVerifyCode($mobile) {
    $redis = Api_Common::redis();
    $vcKey = \'VC_\'.$mobile;
    $limitKey = \'VC_LIMIT_\'.$mobile;
    $redis->del($vcKey);
    $redis->del($limitKey);
  }
}