sub2clash/parser/vless.go

package parser

import (
	"fmt"
	"net/url"
	"strconv"
	"strings"
	"sub2clash/model"
)

func ParseVless(proxy string) (model.Proxy, error) {
	// 判断是否以 vless:// 开头
	if !strings.HasPrefix(proxy, "vless://") {
		return model.Proxy{}, fmt.Errorf("invalid vless Url")
	}
	// 分割
	parts := strings.SplitN(strings.TrimPrefix(proxy, "vless://"), "@", 2)
	if len(parts) != 2 {
		return model.Proxy{}, fmt.Errorf("invalid vless Url")
	}
	// 分割
	serverInfo := strings.SplitN(parts[1], "#", 2)
	serverAndPortAndParams := strings.SplitN(serverInfo[0], "?", 2)
	serverAndPort := strings.SplitN(serverAndPortAndParams[0], ":", 2)
	params, err := url.ParseQuery(serverAndPortAndParams[1])
	if err != nil {
		return model.Proxy{}, err
	}
	if len(serverAndPort) != 2 {
		return model.Proxy{}, fmt.Errorf("invalid vless")
	}
	// 处理端口
	port, err := strconv.Atoi(strings.TrimSpace(serverAndPort[1]))
	if err != nil {
		return model.Proxy{}, err
	}
	// 返回结果
	result := model.Proxy{
		Type:              "vless",
		Server:            strings.TrimSpace(serverAndPort[0]),
		Port:              port,
		UUID:              strings.TrimSpace(parts[0]),
		UDP:               true,
		Sni:               params.Get("sni"),
		Network:           params.Get("type"),
		Flow:              params.Get("flow"),
		ClientFingerprint: params.Get("fp"),
		Servername:        params.Get("sni"),
	}
	if params.Get("alpn") != "" {
		result.Alpn = strings.Split(params.Get("alpn"), ",")
	}
	if params.Get("security") == "reality" {
		result.TLS = true
		result.RealityOpts = model.RealityOptions{
			PublicKey: params.Get("pbk"),
			ShortID:   params.Get("sid"),
		}
	}
	if params.Get("type") == "ws" {
		result.TLS = true
		result.WSOpts = model.WSOptions{
			Path: params.Get("path"),
			Headers: map[string]string{
				"Host": params.Get("host"),
			},
		}
	}
	if params.Get("type") == "grpc" {
		result.TLS = true
		result.GrpcOpts = model.GrpcOptions{
			GrpcServiceName: params.Get("serviceName"),
		}
	}
	// 如果有节点名称
	if len(serverInfo) == 2 {
		if strings.Contains(serverInfo[1], "|") {
			result.Name = strings.SplitN(serverInfo[1], "|", 2)[1]
		} else {
			result.Name, err = url.QueryUnescape(serverInfo[1])
			if err != nil {
				return model.Proxy{}, err
			}
		}
	} else {
		result.Name, err = url.QueryUnescape(serverAndPort[0])
		if err != nil {
			return model.Proxy{}, err
		}
	}
	return result, nil
}