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android/app/src/main/java/top/wherewego/vnt_app/FlutterMethodChannel.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,182 @@ | ||
| package top.wherewego.vnt_app; | ||
|
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| import android.os.Build; | ||
| import android.service.quicksettings.Tile; | ||
| import android.util.Log; | ||
|
|
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| import androidx.annotation.NonNull; | ||
| import androidx.annotation.Nullable; | ||
|
|
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.Map; | ||
| import java.util.function.Function; | ||
|
|
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| import io.flutter.embedding.engine.FlutterEngine; | ||
| import io.flutter.plugin.common.MethodChannel; | ||
| import top.wherewego.vnt_app.vpn.DeviceConfig; | ||
| import top.wherewego.vnt_app.vpn.IpUtils; | ||
|
|
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| public class FlutterMethodChannel { | ||
| private static final String CHANNEL = "top.wherewego.vnt/vpn"; | ||
|
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| private volatile static MethodChannel channel; | ||
| private volatile static MethodChannel.Result pendingResult; | ||
| private volatile static boolean tileStart = false; | ||
|
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| public static void setTileStart(boolean tileStart) { | ||
| FlutterMethodChannel.tileStart = tileStart; | ||
| } | ||
|
|
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| public static boolean initialized() { | ||
| return channel != null; | ||
| } | ||
|
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| public static void init(FlutterEngine flutterEngine, Callback callback) { | ||
| channel = new MethodChannel(flutterEngine.getDartExecutor().getBinaryMessenger(), CHANNEL); | ||
| channel.setMethodCallHandler((call, result) -> { | ||
| switch (call.method) { | ||
| case "startVpn": | ||
| DeviceConfig config; | ||
| try { | ||
| Map<String, Object> arguments = call.arguments(); | ||
| config = parseDeviceConfig(arguments); | ||
| } catch (Exception e) { | ||
| result.error("VPN_ERROR", "Invalid DeviceConfig", e); | ||
| return; | ||
| } | ||
| try { | ||
| pendingResult = result; | ||
| callback.startVpn(config); | ||
| } catch (Exception e) { | ||
| result.error("VPN_ERROR", e.getMessage(), e); | ||
| } | ||
|
|
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| break; | ||
| case "stopVpn": | ||
| callback.stopVpn(); | ||
| result.success(null); | ||
| break; | ||
| case "moveTaskToBack": | ||
| callback.moveToBack(); | ||
| result.success(null); | ||
| break; | ||
| case "isTileStart": | ||
| result.success(tileStart); | ||
| break; | ||
| default: | ||
| result.notImplemented(); | ||
| break; | ||
| } | ||
| } | ||
| ); | ||
| } | ||
|
|
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| public static void callSuccess(int fd) { | ||
| if (pendingResult != null) { | ||
| pendingResult.success(fd); | ||
| } | ||
| pendingResult = null; | ||
| } | ||
|
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| public static void callError(String msg, Exception e) { | ||
| if (pendingResult != null) { | ||
| pendingResult.error("VPN_ERROR", msg, e); | ||
| } | ||
| pendingResult = null; | ||
| } | ||
|
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| public static void startVnt(Function<Boolean, Void> function) { | ||
| if (channel == null) { | ||
| return; | ||
| } | ||
| channel.invokeMethod("startVnt", null, new MethodChannel.Result() { | ||
| @Override | ||
| public void success(@Nullable Object result) { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(Boolean.TRUE.equals(result)); | ||
| } | ||
| } | ||
|
|
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| @Override | ||
| public void error(@NonNull String errorCode, @Nullable String errorMessage, @Nullable Object errorDetails) { | ||
| Log.e("FlutterChannel", errorMessage); | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(false); | ||
| } | ||
| } | ||
|
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||
| @Override | ||
| public void notImplemented() { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(false); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
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| public static void stopVnt() { | ||
| if (channel == null) { | ||
| return; | ||
| } | ||
| channel.invokeMethod("stopVnt", null); | ||
| } | ||
|
|
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| public static void isRunning(Function<Boolean, Void> function) { | ||
| if (channel == null) { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(false); | ||
| } | ||
| return; | ||
| } | ||
| channel.invokeMethod("isRunning", null, new MethodChannel.Result() { | ||
| @Override | ||
| public void success(@Nullable Object result) { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(Boolean.TRUE.equals(result)); | ||
| } | ||
| } | ||
|
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| @Override | ||
| public void error(@NonNull String errorCode, @Nullable String errorMessage, @Nullable Object errorDetails) { | ||
| Log.e("FlutterChannel", errorMessage); | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(false); | ||
| } | ||
| } | ||
|
|
||
| @Override | ||
| public void notImplemented() { | ||
| if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { | ||
| function.apply(false); | ||
| } | ||
| } | ||
| }); | ||
| } | ||
|
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| private static DeviceConfig parseDeviceConfig(Map<String, Object> arguments) { | ||
| String virtualIp = (String) arguments.get("virtualIp"); | ||
| String virtualNetmask = (String) arguments.get("virtualNetmask"); | ||
| String virtualGateway = (String) arguments.get("virtualGateway"); | ||
| Integer mtu = (Integer) arguments.get("mtu"); | ||
|
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| List<Map<String, String>> externalRouteList = (List<Map<String, String>>) arguments.get("externalRoute"); | ||
| List<DeviceConfig.Route> externalRoute = new ArrayList<>(); | ||
| if (externalRouteList != null) { | ||
| for (Map<String, String> route : externalRouteList) { | ||
| String destination = route.get("destination"); | ||
| String netmask = route.get("netmask"); | ||
| externalRoute.add(new DeviceConfig.Route(IpUtils.ipToInt(destination), IpUtils.ipToInt(netmask))); | ||
| } | ||
| } | ||
| return new DeviceConfig(IpUtils.ipToInt(virtualIp), IpUtils.ipToInt(virtualNetmask), IpUtils.ipToInt(virtualGateway), mtu, externalRoute); | ||
| } | ||
|
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| public interface Callback { | ||
| int startVpn(DeviceConfig config); | ||
|
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| void stopVpn(); | ||
|
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| void moveToBack(); | ||
| } | ||
| } |
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