Utils: Add Platform helpers

CMakeLists.txt

@@ -48,7 +48,7 @@ find_package(LibObs REQUIRED)
 
 
 # Find Qt5
-find_package(Qt5 REQUIRED COMPONENTS Core Widgets Concurrent)
+find_package(Qt5 REQUIRED COMPONENTS Core Widgets Network Concurrent)
 
 
 # Find nlohmann
@@ -78,7 +78,8 @@ set(obs-websocket_SOURCES
 	src/requesthandler/rpc/RequestResult.cpp
 	src/forms/SettingsDialog.cpp
 	src/utils/Json.cpp
-    src/utils/Crypto.cpp)
+    src/utils/Crypto.cpp
+    src/utils/Platform.cpp)
 
 set(obs-websocket_HEADERS
 	src/obs-websocket.h
@@ -101,6 +102,7 @@ include_directories(
 	"${LIBOBS_INCLUDE_DIR}/../UI/obs-frontend-api"
 	${Qt5Core_INCLUDES}
 	${Qt5Widgets_INCLUDES}
+    ${Qt5Network_INCLUDES}
 	${Qt5Concurrent_INCLUDES}
 	"${CMAKE_SOURCE_DIR}/deps/asio/asio/include"
 	"${CMAKE_SOURCE_DIR}/deps/websocketpp")
@@ -109,6 +111,7 @@ target_link_libraries(obs-websocket
 	libobs
 	Qt5::Core
 	Qt5::Widgets
+    Qt5::Network
 	Qt5::Concurrent
 	nlohmann_json::nlohmann_json)
 

src/WebSocketServer.cpp

@@ -103,7 +103,7 @@ void WebSocketServer::Start()
 
 	_serverThread = std::thread(&WebSocketServer::ServerRunner, this);
 
-	blog(LOG_INFO, "[Start] Server started successfully on port %d", _serverPort);
+	blog(LOG_INFO, "[Start] Server started successfully on port %d. Possible connect address: %s", _serverPort, Utils::Platform::GetLocalAddress().c_str());
 }
 
 void WebSocketServer::Stop()

src/utils/Platform.cpp

@@ -0,0 +1,40 @@
+#include <QNetworkInterface>
+#include <QHostAddress>
+
+#include "Utils.h"
+
+#include "../plugin-macros.generated.h"
+
+std::string Utils::Platform::GetLocalAddress()
+{
+	std::vector<QString> validAddresses;
+	for (auto address : QNetworkInterface::allAddresses()) {
+		// Exclude addresses which won't work
+		if (address == QHostAddress::LocalHost)
+			continue;
+		else if (address == QHostAddress::LocalHostIPv6)
+			continue;
+		else if (address.isLoopback())
+			continue;
+		else if (address.isLinkLocal())
+			continue;
+		else if (address.isNull())
+			continue;
+
+		validAddresses.push_back(address.toString());
+	}
+
+	for (auto address : validAddresses) {
+		// Hacks to try to pick the best address
+		if (address.startsWith("192.168")) {
+			return address.toStdString();
+		} else if (address.startsWith("172.16")) {
+			return address.toStdString();
+		}
+	}
+
+	if (validAddresses.size() > 0)
+		return validAddresses[0].toStdString();
+
+	return "0.0.0.0";
+}

src/utils/Utils.h

@@ -19,4 +19,8 @@ namespace Utils {
 		std::string GenerateSecret(std::string password, std::string salt);
 		bool CheckAuthenticationString(std::string secret, std::string challenge, std::string authenticationString);
 	}
+
+	namespace Platform {
+		std::string GetLocalAddress();
+	}
 }