package handler

import (
	"github.com/gin-gonic/gin"
	"net/http"
	//"net/http"
)

// 跨域访问：cross  origin resource share
func CrosHandler() gin.HandlerFunc {
	return func(c *gin.Context) {
		c.Writer.Header().Set("Access-Control-Allow-Origin", "*") // 或者设置为具体的源
		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE")
		c.Writer.Header().Set("Access-Control-Allow-Headers", "Authorization, Content-Length, X-CSRF-Token, Token, Session, X-Requested-With, Accept, Origin, Host, Connection, Accept-Encoding, Accept-Language, DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type, Pragma, Token, OpenId, OpenToken")
		c.Writer.Header().Set("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers, Cache-Control, Content-Language, Content-Type, Expires, Last-Modified, Pragma, FooBar")
		c.Writer.Header().Set("Access-Control-Max-Age", "172800")
		// 如果需要发送cookies，请确保设置了具体的源而不是*，并将Allow-Credentials设置为true
		// c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")

		if c.Request.Method == "OPTIONS" {
			c.AbortWithStatus(http.StatusOK)
			return
		}

		c.Next()
	}
}