First working version

ios/Runner/Handlers/MethodHandler.swift

@@ -0,0 +1,180 @@
+//
+//  MethodHandler.swift
+//  Runner
+//
+//  Created by GFWFighter on 10/23/23.
+//
+
+import Flutter
+import Combine
+import Libcore
+
+public class MethodHandler: NSObject, FlutterPlugin {
+    
+    private var cancelBag: Set<AnyCancellable> = []
+    
+    public static let name = "\(FilePath.packageName)/method"
+    
+    public static func register(with registrar: FlutterPluginRegistrar) {
+        let channel = FlutterMethodChannel(name: Self.name, binaryMessenger: registrar.messenger())
+        let instance = MethodHandler()
+        registrar.addMethodCallDelegate(instance, channel: channel)
+        instance.channel = channel
+    }
+    
+    private var channel: FlutterMethodChannel?
+    
+    public func handle(_ call: FlutterMethodCall, result: @escaping FlutterResult) {
+        switch call.method {
+        case "parse_config":
+            result(parseConfig(args: call.arguments))
+        case "change_config_options":
+            result(changeConfigOptions(args: call.arguments))
+        case "start":
+            Task { [unowned self] in
+                let res = await start(args: call.arguments)
+                await MainActor.run {
+                    result(res)
+                }
+            }
+        case "restart":
+            Task { [unowned self] in
+                let res = await restart(args: call.arguments)
+                await MainActor.run {
+                    result(res)
+                }
+            }
+        case "stop":
+            result(stop())
+        case "url_test":
+            result(urlTest(args: call.arguments))
+        case "select_outbound":
+            result(selectOutbound(args: call.arguments))
+        default:
+            result(FlutterMethodNotImplemented)
+        }
+    }
+    
+    public func parseConfig(args: Any?) -> String {
+        var error: NSError?
+        guard
+            let args = args as? [String:Any?],
+            let path = args["path"] as? String,
+            let tempPath = args["tempPath"] as? String,
+            let debug = (args["debug"] as? NSNumber)?.boolValue
+        else {
+            return "bad method format"
+        }
+        let res = MobileParse(path, tempPath, debug, &error)
+        if let error {
+            return error.localizedDescription
+        }
+        return ""
+    }
+    
+    public func changeConfigOptions(args: Any?) -> Bool {
+        guard let options = args as? String else {
+            return false
+        }
+        VPNConfig.shared.configOptions = options
+        return true
+    }
+    
+    public func start(args: Any?) async -> Bool {
+        guard
+            let args = args as? [String:Any?],
+            let path = args["path"] as? String
+        else {
+            return false
+        }
+        VPNConfig.shared.activeConfigPath = path
+        var error: NSError?
+        let config = MobileBuildConfig(path, VPNConfig.shared.configOptions, &error)
+        if let error {
+            return false
+        }
+        do {
+            try await VPNManager.shared.setup()
+            try await VPNManager.shared.connect(with: config, disableMemoryLimit: VPNConfig.shared.disableMemoryLimit)
+        } catch {
+            return false
+        }
+        return true
+    }
+    
+    public func stop() -> Bool {
+        VPNManager.shared.disconnect()
+        return true
+    }
+    
+    private func waitForStop() -> Future<Void, Never> {
+        return Future { promise in
+            var cancellable: AnyCancellable? = nil
+            cancellable = VPNManager.shared.$state
+                .filter { $0 == .disconnected }
+                .first()
+                .delay(for: 0.5, scheduler: RunLoop.current)
+                .sink(receiveValue: { _ in
+                    promise(.success(()))
+                    cancellable?.cancel()
+                })
+        }
+    }
+    
+    public func restart(args: Any?) async -> Bool {
+        guard
+            let args = args as? [String:Any?],
+            let path = args["path"] as? String
+        else {
+            return false
+        }
+        VPNConfig.shared.activeConfigPath = path
+        VPNManager.shared.disconnect()
+        await waitForStop().value
+        var error: NSError?
+        let config = MobileBuildConfig(path, VPNConfig.shared.configOptions, &error)
+        if let error {
+            return false
+        }
+        do {
+            try await VPNManager.shared.setup()
+            try await VPNManager.shared.connect(with: config, disableMemoryLimit: VPNConfig.shared.disableMemoryLimit)
+        } catch {
+            return false
+        }
+        return true
+    }
+    
+    public func selectOutbound(args: Any?) -> Bool {
+        guard
+            let args = args as? [String:Any?],
+            let group = args["groupTag"] as? String,
+            let outbound = args["outboundTag"] as? String
+        else {
+            return false
+        }
+        FileManager.default.changeCurrentDirectoryPath(FilePath.sharedDirectory.path)
+        do {
+            try LibboxNewStandaloneCommandClient()?.selectOutbound(group, outboundTag: outbound)
+        } catch {
+            return false
+        }
+        return true
+    }
+    
+    public func urlTest(args: Any?) -> Bool {
+        guard
+            let args = args as? [String:Any?]
+        else {
+            return false
+        }
+        let group = args["groupTag"] as? String
+        FileManager.default.changeCurrentDirectoryPath(FilePath.sharedDirectory.path)
+        do {
+            try LibboxNewStandaloneCommandClient()?.urlTest(group)
+        } catch {
+            return false
+        }
+        return true
+    }
+}