207 lines
4.8 KiB
Go
207 lines
4.8 KiB
Go
package service
|
||
|
||
import (
|
||
"fmt"
|
||
"net"
|
||
"net/url"
|
||
"strings"
|
||
)
|
||
|
||
type NetworkAddress struct {
|
||
Protocol string // tcp, tcp4, tcp6, unix, unixpacket
|
||
Host string // IP 地址或主机名
|
||
Port string // 端口号
|
||
Path string // Unix socket 路径
|
||
Raw string // 原始字符串
|
||
}
|
||
|
||
// 解析网络地址字符串
|
||
// "tcp://0.0.0.0:1212",
|
||
//
|
||
// "tcp4://127.0.0.1:8080",
|
||
// "tcp6://[::1]:8080",
|
||
// "unix:///data/app/passport.sock",
|
||
// "unixpacket:///tmp/mysql.sock",
|
||
// ":8080", // 传统格式
|
||
// "/tmp/server.sock", // 传统Unix格式
|
||
// "invalid://address", // 错误格式
|
||
func ParseNetworkAddress(addr string) (*NetworkAddress, error) {
|
||
// 如果包含 ://,按 URL 解析
|
||
if strings.Contains(addr, "://") {
|
||
return parseURLStyle(addr)
|
||
}
|
||
|
||
// 否则按传统格式解析
|
||
return parseTraditionalStyle(addr)
|
||
}
|
||
|
||
// 解析 tcp://0.0.0.0:1212 或 unix:///path/to/socket 格式
|
||
func parseURLStyle(addr string) (*NetworkAddress, error) {
|
||
u, err := url.Parse(addr)
|
||
if err != nil {
|
||
return nil, fmt.Errorf("解析URL失败: %w", err)
|
||
}
|
||
|
||
result := &NetworkAddress{
|
||
Protocol: u.Scheme,
|
||
Raw: addr,
|
||
}
|
||
|
||
switch u.Scheme {
|
||
case "tcp", "tcp4", "tcp6":
|
||
return parseTCPURL(u, result)
|
||
case "unix", "unixpacket":
|
||
return parseUnixURL(u, result)
|
||
default:
|
||
return nil, fmt.Errorf("不支持的协议: %s", u.Scheme)
|
||
}
|
||
}
|
||
|
||
// 解析 TCP 类型的 URL
|
||
func parseTCPURL(u *url.URL, result *NetworkAddress) (*NetworkAddress, error) {
|
||
host, port, err := net.SplitHostPort(u.Host)
|
||
if err != nil {
|
||
// 如果没有端口,尝试添加默认端口
|
||
if strings.Contains(err.Error(), "missing port") {
|
||
host = u.Host
|
||
port = "0" // 默认端口
|
||
} else {
|
||
return nil, fmt.Errorf("解析TCP地址失败: %w", err)
|
||
}
|
||
}
|
||
|
||
result.Host = host
|
||
result.Port = port
|
||
|
||
// 根据主机地址确定具体的协议类型
|
||
if result.Protocol == "tcp" {
|
||
result.Protocol = determineTCPProtocol(host)
|
||
}
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// 解析 Unix socket 类型的 URL
|
||
func parseUnixURL(u *url.URL, result *NetworkAddress) (*NetworkAddress, error) {
|
||
// Unix socket 路径在 URL 的 Path 字段
|
||
if u.Path == "" {
|
||
return nil, fmt.Errorf("Unix socket 路径不能为空")
|
||
}
|
||
|
||
result.Path = u.Path
|
||
|
||
// 如果协议是 unix,但路径表明需要数据包传输,可以自动升级
|
||
if result.Protocol == "unix" && strings.Contains(u.Path, "packet") {
|
||
result.Protocol = "unixpacket"
|
||
}
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// 根据主机地址确定 TCP 协议类型
|
||
func determineTCPProtocol(host string) string {
|
||
if host == "" {
|
||
return "tcp" // 默认
|
||
}
|
||
|
||
// 解析 IP 地址
|
||
ip := net.ParseIP(host)
|
||
if ip != nil {
|
||
if ip.To4() != nil {
|
||
return "tcp4"
|
||
}
|
||
return "tcp6"
|
||
}
|
||
|
||
// 如果是特殊地址
|
||
switch host {
|
||
case "0.0.0.0", "127.0.0.1", "localhost":
|
||
return "tcp4"
|
||
case "::", "::1":
|
||
return "tcp6"
|
||
default:
|
||
return "tcp" // 默认支持双栈
|
||
}
|
||
}
|
||
|
||
// 解析传统格式如 ":8080", "127.0.0.1:8080", "/tmp/socket"
|
||
func parseTraditionalStyle(addr string) (*NetworkAddress, error) {
|
||
result := &NetworkAddress{Raw: addr}
|
||
|
||
// 检查是否是 Unix socket(包含路径分隔符)
|
||
if strings.Contains(addr, "/") || strings.HasPrefix(addr, "@/") {
|
||
result.Protocol = "unix"
|
||
result.Path = addr
|
||
return result, nil
|
||
}
|
||
|
||
// 否则按 TCP 地址解析
|
||
result.Protocol = "tcp"
|
||
|
||
host, port, err := net.SplitHostPort(addr)
|
||
if err != nil {
|
||
return nil, fmt.Errorf("解析地址失败: %w", err)
|
||
}
|
||
|
||
result.Host = host
|
||
result.Port = port
|
||
result.Protocol = determineTCPProtocol(host)
|
||
|
||
return result, nil
|
||
}
|
||
|
||
// 获取网络类型用于 net.Dial 或 net.Listen
|
||
func (na *NetworkAddress) Network() string {
|
||
return na.Protocol
|
||
}
|
||
|
||
// 获取地址字符串用于 net.Dial 或 net.Listen
|
||
func (na *NetworkAddress) Address() string {
|
||
switch na.Protocol {
|
||
case "tcp", "tcp4", "tcp6":
|
||
if na.Port == "" {
|
||
return na.Host
|
||
}
|
||
return net.JoinHostPort(na.Host, na.Port)
|
||
case "unix", "unixpacket":
|
||
return na.Path
|
||
default:
|
||
return na.Raw
|
||
}
|
||
}
|
||
|
||
// 格式化输出
|
||
func (na *NetworkAddress) String() string {
|
||
switch na.Protocol {
|
||
case "tcp", "tcp4", "tcp6":
|
||
return fmt.Sprintf("%s://%s", na.Protocol, net.JoinHostPort(na.Host, na.Port))
|
||
case "unix", "unixpacket":
|
||
return fmt.Sprintf("%s://%s", na.Protocol, na.Path)
|
||
default:
|
||
return na.Raw
|
||
}
|
||
}
|
||
|
||
// 验证地址是否有效
|
||
func (na *NetworkAddress) Validate() error {
|
||
switch na.Protocol {
|
||
case "tcp", "tcp4", "tcp6":
|
||
if na.Host == "" && na.Port == "" {
|
||
return fmt.Errorf("TCP地址需要主机和端口")
|
||
}
|
||
// 验证端口
|
||
if na.Port != "" {
|
||
if _, err := net.LookupPort("tcp", na.Port); err != nil {
|
||
return fmt.Errorf("无效的端口: %s", na.Port)
|
||
}
|
||
}
|
||
case "unix", "unixpacket":
|
||
if na.Path == "" {
|
||
return fmt.Errorf("Unix socket路径不能为空")
|
||
}
|
||
default:
|
||
return fmt.Errorf("不支持的协议: %s", na.Protocol)
|
||
}
|
||
return nil
|
||
}
|