/*
解决跨域 中间件
*/
package cross

import (
	"net/http"

	"go_dreamfactory/lego/sys/gin/engine"
)

func handlerCors() engine.HandlerFunc {
	return func(c *engine.Context) {
		method := c.Request.Method
		origin := c.Request.Header.Get("Origin") //请求头部
		if origin != "" {
			c.Header("Access-Control-Allow-Origin", origin)
			c.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE, UPDATE")
			c.Header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type,X-Token, Accept, Authorization")
			c.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Cache-Control, Content-Language, Content-Type")
			c.Header("Access-Control-Allow-Credentials", "true")
		} //允许类型校验
		if method == "OPTIONS" {
			c.AbortWithStatus(http.StatusNoContent)
		}
		c.Next()
	}
}