protected function checkVerify($code)
{
// 验证码不区分大小写
$code = strtolower($code);
$checkCode = Common::session(self::ROBOT_CHALLENGE_FLAG);
// 验证码不存在，直接返回
if (!$checkCode) {
$this->error = 'Verify not exists';
return false;
}
if (substr(hash('sha256', $checkCode . $code), 0, 4) !== '0000') {
// 验证失败
$checkTimes = intval(Common::session(self::ROBOT_CHALLENGE_VERIFY_TIMES));
// 验证码超过指定次数后失效
if ($checkTimes > self::ROBOT_CHALLENGE_ERROR_TIMES) {
Common::session(self::ROBOT_CHALLENGE_FLAG, null);
} else {
$checkTimes++;
Common::session(self::ROBOT_CHALLENGE_VERIFY_TIMES, $checkTimes);
}
$this->error = 'Check verify failure';
return false;
} else {
// 验证成功，重置验证次数统计，删除验证码
Common::session(self::ROBOT_CHALLENGE_VERIFY_TIMES, null);
Common::session(self::ROBOT_CHALLENGE_FLAG, null);
return true;
}
}
private function delWhiteFlag()
{
return Common::session(self::SESSION_WHITE_FLAG, null);
}
private function setVerify($code)
{
// 验证码不区分大小写
$code = strtolower($code);
// 重置验证码验证失败次数
Common::session(self::ROBOT_CHALLENGE_VERIFY_TIMES, 0);
if (Common::session(self::ROBOT_CHALLENGE_FLAG, $code)) {
return true;
} else {
$this->error = 'Set verify into session failure';
return false;
}
}
