Windows service works now!

ZeroTierUI/main.cpp

@@ -25,6 +25,10 @@
  * LLC. Start here: http://www.zerotier.com/
  */
 
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
 #include "mainwindow.h"
 #include "installdialog.h"
 #include "licensedialog.h"
@@ -33,12 +37,62 @@
 #include <QDir>
 #include <QString>
 #include <QFont>
+#include <QMessageBox>
+
+#include "../node/Constants.hpp"
+#include "../node/Defaults.hpp"
 
 #ifdef __WINDOWS__
 #include <WinSock2.h>
 #include <windows.h>
-#endif
+#include "../windows/ZeroTierOne/ZeroTierOneService.h"
 
+// Returns true if started or already running, false if failed or not installed
+static bool startWindowsService()
+{
+	SERVICE_STATUS ssSvcStatus;
+	SC_HANDLE schSCManager = NULL;
+	SC_HANDLE schService = NULL;
+
+	schSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT);
+	if (schSCManager == NULL)
+		return false;
+
+	schService = OpenService(schSCManager, ZT_SERVICE_NAME, SERVICE_QUERY_STATUS | SERVICE_START);
+	if (schService == NULL) {
+		CloseServiceHandle(schSCManager);
+		return false;
+	}
+
+	int tries = 0;
+	bool running = true;
+
+	for(;;) {
+		memset(&ssSvcStatus,0,sizeof(ssSvcStatus));
+		if ((++tries > 20)||(!QueryServiceStatus(schService,&ssSvcStatus))) {
+			running = false;
+			break;
+		}
+
+		if (ssSvcStatus.dwCurrentState == SERVICE_RUNNING) {
+			break;
+		} else if (ssSvcStatus.dwCurrentState == SERVICE_START_PENDING) {
+			Sleep(500);
+			continue;
+		}
+
+		memset(&ssSvcStatus,0,sizeof(ssSvcStatus));
+		ControlService(schService, SERVICE_CONTROL_START, &ssSvcStatus);
+		Sleep(500);
+	}
+
+	CloseServiceHandle(schService);
+	CloseServiceHandle(schSCManager);
+	return running;
+}
+#endif // __WINDOWS__
+
+// Globally visible settings for the app
 QSettings *settings = (QSettings *)0;
 
 int main(int argc, char *argv[])
@@ -46,6 +100,7 @@ int main(int argc, char *argv[])
 	QApplication a(argc, argv);
 
 #ifdef __WINDOWS__
+	// Start up Winsock2
 	{
 		WSADATA wsaData;
 		WSAStartup(MAKEWORD(2,2),&wsaData);
@@ -65,12 +120,11 @@ int main(int argc, char *argv[])
 		// InstallDialog is an alternative main window. It will re-launch the app
 		// when done.
 		InstallDialog id;
+		id.setStyleSheet(a.styleSheet());
 		id.show();
 		return a.exec();
 	}
-#endif
 
-#ifdef __APPLE__
 	{
 		// Put QSettings here because this is one of the writable directories allowed
 		// in Apple's app store sandbox specs. We might end up in app store someday.
@@ -78,7 +132,7 @@ int main(int argc, char *argv[])
 		QDir::root().mkpath(zt1AppSupport);
 		settings = new QSettings(zt1AppSupport + "/ui.ini",QSettings::IniFormat);
 	}
-#else
+#else // on non-Apple boxen put it in the standard place using the default format
 	settings = new QSettings("ZeroTier Networks","ZeroTier One");
 #endif
 
@@ -88,6 +142,48 @@ int main(int argc, char *argv[])
 		ld.exec();
 	}
 
+#ifdef __WINDOWS__
+	{
+		bool winSvcInstalled = false;
+		while (!startWindowsService()) {
+			if (winSvcInstalled) {
+				// Service was installed and subsequently failed to start again, so
+				// something is wrong!
+				QMessageBox::critical((QWidget *)0,"Service Not Available","Unable to locate or start ZeroTier One service. There may be a problem with the installation. Try installing from the .msi file again or e-mail contact@zerotier.com if you cannot install. (Error: service failed to start)",QMessageBox::Ok);
+				return 1;
+			}
+
+#ifdef _WIN64
+			BOOL is64Bit = TRUE;
+#else
+			BOOL is64Bit = FALSE;
+			IsWow64Process(GetCurrentProcess(),&is64Bit);
+#endif
+			std::string exe(ZeroTier::ZT_DEFAULTS.defaultHomePath + "\\zerotier-one_");
+			exe.append((is64Bit == TRUE) ? "x64.exe" : "x86.exe");
+
+			if (QFile::exists(exe.c_str())) {
+				STARTUPINFOA si;
+				PROCESS_INFORMATION pi;
+				memset(&si,0,sizeof(si));
+				memset(&pi,0,sizeof(pi));
+				if (CreateProcessA(NULL,const_cast <LPSTR>((exe + " -I").c_str()),NULL,NULL,FALSE,CREATE_NO_WINDOW|CREATE_NEW_PROCESS_GROUP,NULL,NULL,&si,&pi)) {
+					WaitForSingleObject(pi.hProcess,INFINITE);
+					CloseHandle(pi.hProcess);
+					CloseHandle(pi.hThread);
+					winSvcInstalled = true;
+				}
+			}
+
+			if (!winSvcInstalled) {
+				// Service failed to install -- installation problem like missing .exe
+				QMessageBox::critical((QWidget *)0,"Service Not Available","Unable to locate or start ZeroTier One service. There may be a problem with the installation. Try installing from the .msi file again or e-mail contact@zerotier.com if you cannot install. (Error: service not installed)",QMessageBox::Ok);
+				return 1;
+			}
+		}
+	}
+#endif
+
 	MainWindow w;
 	w.show();
 	return a.exec();