邮箱注册限制类型怎么改

Question

下面的代码，怎么改为限制为只允许qq邮箱注册

<script>
                if (<?= $al_time ?> > 60) {
                    var t = 60;
                    var send_status = true;
                } else {
                    var t = 60 - <?= $al_time ?>;
                    var send_status = false;
                    time();
                }

                //倒计时
                function time() {
                    setTimeout(function() {
                        t--;
                        send_status = false;
                        $('#mail').attr("disabled", true);
                        $('#mail').html("" + t + 's后重新获取');
                        if (t != 0) {
                            time();
                        } else {
                            t = 60;
                            send_status = true;
                            $('#mail').attr("disabled", false);
                            $('#mail').html("发送邮件");
                        }
                    }, 1000);
                }


                //发送邮件
                async function send(token) {
                    var username = $('#username').val();
                    if (username == "") {
                        return codemsg('no', '邮箱不能为空', 2000);
                    }
                    if (send_status) {
                        $('#mail').html("发送中...");
                        send_status = false;
                        var json = {
                            username: username,
                            token: token
                        }
                        var data = await myajax('POST', 'api.php?act=send_mail', json, 'json');
                        if (data.status == 'success') {
                            codemsg('ok', data.msg, 2000);
                            time();
                        } else {
                            $('#mail').html("发送邮件");
                            send_status = true;
                            codemsg('no', data.msg, 2000);
                        }
                    }
                };

                //注册
                async function reg() {
                    var username = $('#username').val();
                    var password = $('#password').val();
                    var password2 = $('#password2').val();
                    var code = $('#code').val();
                    if (username == "" || password == "" || password2 == "" || code == "") {
                        return codemsg('no', '所有信息不能为空', 2000);
                    }
                    if (password != password2) {
                        return codemsg('no', '两次密码输入不一致', 2000);
                    }
                    var json = {
                        username: username,
                        password: password,
                        code: code
                    }
                    var data = await myajax('POST', 'api.php?act=reg_in&uid=<?= $_GET["uid"] ?>', json, 'json');
                    if (data.status == 'success') {
                        codemsg('ok', '注册成功', 2000);
                        setTimeout("window.location.href='index.php';", "1000");
                    } else {
                        codemsg('no', data.msg, 2000);
                        $('#code').val('');
                    }
                }
                <?php if ($zc_info['verify'] == 'on') { ?>
                    var MyCaptcha = _dx.Captcha(document.getElementById('popup'), {
                        appId: '<?= $api_info["verify_id"] ?>',
                        style: 'popup',
                        success: function(token) {
                            MyCaptcha.hide();
                            send(token);
                        },
                        fail: function(error) {
                            MyCaptcha.reload();
                        },
                    })
                    document.getElementById('mail').onclick = function() {
                        if (send_status) {
                            var username = $('#username').val();
                            var password = $('#password').val();
                            var password2 = $('#password2').val();
                            if (username == "" || password == "" || password2 == "") {
                                return codemsg('no', '邮箱与密码不能为空', 2000);
                            }
                            if (password != password2) {
                                return codemsg('no', '两次密码输入不一致', 2000);
                            }
                            MyCaptcha.reload();
                            MyCaptcha.show()
                        }
                    }
                <?php } ?>

Answer 1

如果username是邮箱的话，用正则表达式判断试试

var qq = /^\[e-mail]$/;
if (qq.test(username)) {
    return codemsg('ok', '这是一个qq邮箱', 2000);
} else {
    return codemsg('no', '只允许qq邮箱注册', 2000);
}