Function proxy

server/handles/down.go:95–126

(c *gin.Context, link *model.Link, file model.Obj, proxyRange bool)

}

func proxy(c *gin.Context, link *model.Link, file model.Obj, proxyRange bool) {
	defer link.Close()
	var err error
	if link.URL != "" && setting.GetBool(conf.ForwardDirectLinkParams) {
		query := c.Request.URL.Query()
		for _, v := range conf.SlicesMap[conf.IgnoreDirectLinkParams] {
			query.Del(v)
		}
		link.URL, err = utils.InjectQuery(link.URL, query)
		if err != nil {
			common.ErrorPage(c, err, 500)
			return
		}
	}
	if proxyRange {
		link = common.ProxyRange(c, link, file.GetSize())
	}
	Writer := &common.WrittenResponseWriter{ResponseWriter: c.Writer}
	err = common.Proxy(Writer, c.Request, link, file)
	if err == nil {
		return
	}
	if Writer.IsWritten() {
		log.Errorf("%s %s local proxy error: %+v", c.Request.Method, c.Request.URL.Path, err)
	} else {
		if statusCode, ok := errs.UnwrapOrSelf(err).(net.HttpStatusCodeError); ok {
			common.ErrorPage(c, err, int(statusCode), true)
		} else {
			common.ErrorPage(c, err, 500, true)
		}
	}
}

// TODO need optimize
// when can be proxy?