Generate debug port in range for Chrome DevTools websocket - iOS (#3275)

* fix generating port for debug socket when debugging ios with chrome devtools

When generating a port to start a websocket on, use the same logic as is present in the android debug service - get the first available available port in a range, and reuse it for the next debug session of the same application if it is still available

* fix(device-socket): iOS Socket proxy should listen on IPv4 localhost adapter

Check for available port is done on this adapter and by default server is launched on "::" which is IPv6's any adapter

Author: petekanev

lib/device-sockets/ios/socket-proxy-factory.ts

@@ -74,7 +74,7 @@ export class SocketProxyFactory extends EventEmitter implements ISocketProxyFact
 
 	public async createWebSocketProxy(factory: () => Promise<net.Socket>): Promise<ws.Server> {
 		// NOTE: We will try to provide command line options to select ports, at least on the localhost.
-		const localPort = await this.$net.getFreePort();
+		const localPort = await this.$net.getAvailablePortInRange(41000);
 
 		this.$logger.info("\nSetting up debugger proxy...\nPress Ctrl + C to terminate, or disconnect.\n");
 
@@ -85,6 +85,7 @@ export class SocketProxyFactory extends EventEmitter implements ISocketProxyFact
 
 		const server = new ws.Server(<any>{
 			port: localPort,
+			host: "localhost",
 			verifyClient: async (info: any, callback: Function) => {
 				this.$logger.info("Frontend client connected.");
 				let _socket;

test/services/ios-debug-service.ts

@@ -48,6 +48,10 @@ const createTestInjector = (): IInjector => {
 		on: (event: string | symbol, listener: Function): any => undefined
 	});
 
+	testInjector.register("net", {
+		getAvailablePortInRange: async (startPort: number, endPort?: number): Promise<number> => 41000
+	});
+
 	return testInjector;
 };