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|
package control
import (
"encoding/json"
"fmt"
"os"
"path/filepath"
"sort"
"strings"
"vpnem/internal/models"
)
func BuildLegacyCatalog(nodes []Node) (*models.ServersResponse, error) {
servers := make([]models.Server, 0)
for _, node := range nodes {
if !node.Enabled {
continue
}
publicHost := node.Host
if strings.TrimSpace(node.Domain) != "" {
publicHost = node.Domain
}
for _, protocol := range node.Protocols {
if !protocol.Enabled {
continue
}
if err := ensureRealityProfile(&protocol); err != nil {
return nil, err
}
server, err := legacyServerFromNode(node, publicHost, protocol)
if err != nil {
return nil, err
}
servers = append(servers, server)
}
}
sort.Slice(servers, func(i, j int) bool {
return servers[i].Tag < servers[j].Tag
})
return &models.ServersResponse{Servers: servers}, nil
}
func WriteLegacyCatalog(path string, nodes []Node) error {
resp, err := BuildLegacyCatalog(nodes)
if err != nil {
return err
}
staticResp, err := LoadStaticLegacyCatalog(filepath.Join(filepath.Dir(path), "static-servers.json"))
if err != nil {
return err
}
resp.Servers = MergeLegacyServers(staticResp.Servers, resp.Servers)
data, err := json.MarshalIndent(resp, "", " ")
if err != nil {
return err
}
data = append(data, '\n')
if err := os.MkdirAll(filepath.Dir(path), 0o755); err != nil {
return err
}
tmpPath := path + ".tmp"
if err := os.WriteFile(tmpPath, data, 0o644); err != nil {
return err
}
return os.Rename(tmpPath, path)
}
func LoadStaticLegacyCatalog(path string) (*models.ServersResponse, error) {
data, err := os.ReadFile(path)
if err != nil {
if os.IsNotExist(err) {
return &models.ServersResponse{Servers: nil}, nil
}
return nil, err
}
var resp models.ServersResponse
if err := json.Unmarshal(data, &resp); err != nil {
return nil, err
}
return &resp, nil
}
func MergeLegacyServers(primary, secondary []models.Server) []models.Server {
merged := make([]models.Server, 0, len(primary)+len(secondary))
seen := make(map[string]struct{}, len(primary)+len(secondary))
for _, item := range primary {
if _, ok := seen[item.Tag]; ok {
continue
}
seen[item.Tag] = struct{}{}
merged = append(merged, item)
}
for _, item := range secondary {
if _, ok := seen[item.Tag]; ok {
continue
}
seen[item.Tag] = struct{}{}
merged = append(merged, item)
}
sort.Slice(merged, func(i, j int) bool {
return merged[i].Tag < merged[j].Tag
})
return merged
}
func legacyServerFromNode(node Node, publicHost string, protocol ProtocolProfile) (models.Server, error) {
switch protocol.Type {
case "socks", "socks5":
return models.Server{
Tag: node.ID + "-socks5",
Region: node.Region,
Type: "socks",
Server: publicHost,
ServerPort: protocol.Port,
}, nil
case "vless":
if protocol.Auth == nil || strings.TrimSpace(protocol.Auth.UUID) == "" {
return models.Server{}, fmt.Errorf("node %s protocol vless requires auth.uuid", node.ID)
}
server := models.Server{
Tag: node.ID + "-vless",
Region: node.Region,
Type: "vless",
Server: publicHost,
ServerPort: protocol.Port,
UUID: protocol.Auth.UUID,
}
if protocol.TLS != nil {
server.TLS = &models.TLS{
Enabled: protocol.TLS.Enabled,
ServerName: protocol.TLS.ServerName,
Insecure: false,
}
}
if transportType, _ := protocol.Extra["transport_type"].(string); transportType != "" {
server.Transport = &models.Transport{
Type: transportType,
Path: stringFromExtra(protocol.Extra, "path"),
}
}
return server, nil
case "vless-reality":
if protocol.Auth == nil || strings.TrimSpace(protocol.Auth.UUID) == "" {
return models.Server{}, fmt.Errorf("node %s protocol vless-reality requires auth.uuid", node.ID)
}
if protocol.Reality == nil {
return models.Server{}, fmt.Errorf("node %s protocol vless-reality requires reality settings", node.ID)
}
server := models.Server{
Tag: node.ID + "-vless-reality",
Region: node.Region,
Type: "vless-reality",
Server: publicHost,
ServerPort: protocol.Port,
UUID: protocol.Auth.UUID,
TLS: &models.TLS{
Enabled: true,
ServerName: protocol.Reality.ServerName,
Reality: &models.Reality{
Enabled: true,
PublicKey: protocol.Reality.PublicKey,
ShortID: protocol.Reality.ShortID,
Fingerprint: protocol.Reality.Fingerprint,
},
},
}
return server, nil
case "shadowsocks":
if protocol.Auth == nil || strings.TrimSpace(protocol.Auth.Method) == "" || strings.TrimSpace(protocol.Auth.Password) == "" {
return models.Server{}, fmt.Errorf("node %s protocol shadowsocks requires auth.method and auth.password", node.ID)
}
return models.Server{
Tag: node.ID + "-shadowsocks",
Region: node.Region,
Type: "shadowsocks",
Server: publicHost,
ServerPort: protocol.Port,
Method: protocol.Auth.Method,
Password: protocol.Auth.Password,
}, nil
case "hysteria2":
if protocol.Auth == nil || strings.TrimSpace(protocol.Auth.Password) == "" {
return models.Server{}, fmt.Errorf("node %s protocol hysteria2 requires auth.password", node.ID)
}
server := models.Server{
Tag: node.ID + "-hysteria2",
Region: node.Region,
Type: "hysteria2",
Server: publicHost,
ServerPort: protocol.Port,
Password: protocol.Auth.Password,
ObfsPassword: stringFromExtra(protocol.Extra, "obfs_password"),
UpMbps: intFromExtra(protocol.Extra, "up_mbps", 0),
DownMbps: intFromExtra(protocol.Extra, "down_mbps", 0),
TLS: &models.TLS{
Enabled: true,
Insecure: true,
ServerName: "",
ALPN: []string{defaultHysteria2ALPN},
MinVersion: "1.3",
MaxVersion: "1.3",
},
}
if protocol.TLS != nil && protocol.TLS.ServerName != "" {
server.TLS.ServerName = protocol.TLS.ServerName
}
return server, nil
default:
return models.Server{}, fmt.Errorf("node %s uses unsupported legacy protocol %q", node.ID, protocol.Type)
}
}
func stringFromExtra(extra map[string]any, key string) string {
if extra == nil {
return ""
}
value, _ := extra[key].(string)
return value
}
|
