package manager

import (
    "mime"
    "path"
)
//初始化数据
func init() {
    if mime.TypeByExtension(".txt") == "" {
        panic("mime.types not found")
    }
}
//获取文件扩展名对应的媒体（内容）类型
func get_content_type(filepath string) string {
    content_type := "application/octet-stream"
    ext := path.Ext(filepath)
    if ext != "" && ext != "." {
        content_type_ := mime.TypeByExtension(ext)
        if content_type_ != "" {
            content_type = content_type_
        }
    }
    return content_type
}