Captcha (#1329)

* feat: #807 自定义验证码开关，可以自行配置

* 添加数据库列表支持：SQL SERVER

* [user.vue]: 新增邮箱手机合法性校验，邮箱手机非必填

* [menu.js]: 修复错误的API注释

* 调整配置文件 是其可以支持oracle和mssql

Co-authored-by: Yexk <yexk@yexk.cn>
Co-authored-by: 逆光飞翔 <191180776@qq.com>
Co-authored-by: chenteng <cc17854330572@163.com>

server/api/v1/system/sys_captcha.go

@@ -1,6 +1,8 @@
 package system
 
 import (
+	"time"
+
 	"github.com/flipped-aurora/gin-vue-admin/server/global"
 	"github.com/flipped-aurora/gin-vue-admin/server/model/common/response"
 	systemRes "github.com/flipped-aurora/gin-vue-admin/server/model/system/response"
@@ -21,9 +23,22 @@ type BaseApi struct{}
 // @Security  ApiKeyAuth
 // @accept    application/json
 // @Produce   application/json
-// @Success   200  {object}  response.Response{data=systemRes.SysCaptchaResponse,msg=string}  "生成验证码,返回包括随机数id,base64,验证码长度"
+// @Success   200  {object}  response.Response{data=systemRes.SysCaptchaResponse,msg=string}  "生成验证码,返回包括随机数id,base64,验证码长度,是否开启验证码"
 // @Router    /base/captcha [post]
 func (b *BaseApi) Captcha(c *gin.Context) {
+	// 判断验证码是否开启
+	openCaptcha := global.GVA_CONFIG.Captcha.OpenCaptcha               // 是否开启防爆次数
+	openCaptchaTimeOut := global.GVA_CONFIG.Captcha.OpenCaptchaTimeOut // 缓存超时时间
+	key := c.ClientIP()
+	v, ok := global.BlackCache.Get(key)
+	if !ok {
+		global.BlackCache.Set(key, 1, time.Second*time.Duration(openCaptchaTimeOut))
+	}
+
+	var oc bool
+	if openCaptcha == 0 || openCaptcha < interfaceToInt(v) {
+		oc = true
+	}
 	// 字符,公式,验证码配置
 	// 生成默认数字的driver
 	driver := base64Captcha.NewDriverDigit(global.GVA_CONFIG.Captcha.ImgHeight, global.GVA_CONFIG.Captcha.ImgWidth, global.GVA_CONFIG.Captcha.KeyLong, 0.7, 80)
@@ -39,5 +54,17 @@ func (b *BaseApi) Captcha(c *gin.Context) {
 		CaptchaId:     id,
 		PicPath:       b64s,
 		CaptchaLength: global.GVA_CONFIG.Captcha.KeyLong,
+		OpenCaptcha:   oc,
 	}, "验证码获取成功", c)
 }
+
+// 类型转换
+func interfaceToInt(v interface{}) (i int) {
+	switch v := v.(type) {
+	case int:
+		i = v
+	default:
+		i = 0
+	}
+	return
+}