53 lines
1.9 KiB
Swift
53 lines
1.9 KiB
Swift
import Foundation
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/// Manages the SSH tunnel that forwards the remote gateway/control port to localhost.
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actor RemoteTunnelManager {
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static let shared = RemoteTunnelManager()
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private var controlTunnel: WebChatTunnel?
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func controlTunnelPortIfRunning() async -> UInt16? {
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if let tunnel = self.controlTunnel,
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tunnel.process.isRunning,
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let local = tunnel.localPort
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{
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return local
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}
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// If a previous Clawdis run already has an SSH listener on the expected port (common after restarts),
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// reuse it instead of spawning new ssh processes that immediately fail with "Address already in use".
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let desiredPort = UInt16(GatewayEnvironment.gatewayPort())
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if let desc = await PortGuardian.shared.describe(port: Int(desiredPort)),
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desc.command.lowercased().contains("ssh")
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{
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return desiredPort
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}
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return nil
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}
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/// Ensure an SSH tunnel is running for the gateway control port.
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/// Returns the local forwarded port (usually 18789).
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func ensureControlTunnel() async throws -> UInt16 {
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let settings = CommandResolver.connectionSettings()
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guard settings.mode == .remote else {
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throw NSError(
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domain: "RemoteTunnel",
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code: 1,
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userInfo: [NSLocalizedDescriptionKey: "Remote mode is not enabled"])
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}
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if let local = await self.controlTunnelPortIfRunning() { return local }
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let desiredPort = UInt16(GatewayEnvironment.gatewayPort())
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let tunnel = try await WebChatTunnel.create(
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remotePort: GatewayEnvironment.gatewayPort(),
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preferredLocalPort: desiredPort)
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self.controlTunnel = tunnel
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return tunnel.localPort ?? desiredPort
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}
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func stopAll() {
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self.controlTunnel?.terminate()
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self.controlTunnel = nil
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}
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}
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