init commit

core/models.go

@@ -0,0 +1,128 @@
+package core
+
+// ConnectionState represents VPN connection state.
+type ConnectionState int
+
+const (
+	Disconnected ConnectionState = iota
+	Connecting
+	Connected
+	Disconnecting
+	Error
+)
+
+func (s ConnectionState) String() string {
+	switch s {
+	case Disconnected:
+		return "Disconnected"
+	case Connecting:
+		return "Connecting"
+	case Connected:
+		return "Connected"
+	case Disconnecting:
+		return "Disconnecting"
+	case Error:
+		return "Error"
+	default:
+		return "Unknown"
+	}
+}
+
+// ProxyLink represents a parsed VPN link (trojan://, vless://, etc.)
+type ProxyLink struct {
+	// Protocol: trojan, vless, vmess, shadowsocks
+	Protocol string
+	// Server IP or domain
+	Address string
+	// Server port
+	Port int
+	// Password (trojan) or UUID (vless/vmess)
+	Credential string
+	// Security type: reality, tls, none
+	Security string
+	// Server Name Indication for TLS/REALITY
+	Sni string
+	// TLS fingerprint (chrome, firefox, safari, etc.)
+	Fingerprint string
+	// REALITY public key
+	PublicKey string
+	// REALITY short ID
+	ShortId string
+	// Transport type: tcp, grpc, ws, h2, xhttp
+	Transport string
+	// gRPC service name
+	ServiceName string
+	// WebSocket/HTTP2 path
+	Path string
+	// Host header for WebSocket/HTTP2
+	Host string
+	// Server name from link fragment (#remark)
+	Remark string
+	// XTLS Flow (e.g. xtls-rprx-vision)
+	Flow string
+}
+
+func (p *ProxyLink) String() string {
+	return "[" + p.Protocol + "] " + p.Remark + " (" + p.Address + ":" + itoa(p.Port) + ") security=" + p.Security + " transport=" + p.Transport
+}
+
+// VpnConfig represents a saved VPN configuration.
+type VpnConfig struct {
+	ID   string `json:"Id"`
+	Name string `json:"Name"`
+	Link string `json:"Link"`
+}
+
+func (c *VpnConfig) DisplayName() string {
+	if c.Name == "" {
+		return "Unknown Server"
+	}
+	return c.Name
+}
+
+func (c *VpnConfig) ProtocolType() string {
+	if len(c.Link) < 5 {
+		return "UNKNOWN"
+	}
+	switch {
+	case hasPrefix(c.Link, "vless://"):
+		return "VLESS"
+	case hasPrefix(c.Link, "trojan://"):
+		return "TROJAN"
+	case hasPrefix(c.Link, "hy2://"):
+		return "HYSTERIA2"
+	case hasPrefix(c.Link, "ss://"):
+		return "SHADOWSOCKS"
+	default:
+		return "UNKNOWN"
+	}
+}
+
+// ExtractNameFromLink extracts server name from a VPN link.
+func ExtractNameFromLink(link string) string {
+	if link == "" {
+		return "New Config"
+	}
+	idx := lastIndexOf(link, '#')
+	if idx >= 0 && idx < len(link)-1 {
+		encoded := link[idx+1:]
+		decoded, err := urlUnescape(encoded)
+		if err != nil {
+			return encoded
+		}
+		return decoded
+	}
+	parts := splitAt(link, '@')
+	if len(parts) > 1 {
+		addrPart := parts[1]
+		for i, ch := range addrPart {
+			if ch == '?' || ch == ':' || ch == '/' || ch == '#' {
+				if i > 0 {
+					return addrPart[:i]
+				}
+				break
+			}
+		}
+	}
+	return "Custom Config"
+}