public static void Main(string[] args)
{
Console.Title = "Server Manager Updater";
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
var updaterArgs = args;
ApplicationArgs = null;
DownloadUrl = null;
Prefix = null;
try
{
// check if the updater is already running
if (ProcessUtils.IsAlreadyRunning())
{
throw new Exception("The updater is already running.");
}
var process = Validate(updaterArgs);
CloseApplication(process);
process = null;
Update();
RestartApplication();
Environment.ExitCode = 0;
}
catch (Exception ex)
{
OutputError(ex.Message, ex.StackTrace);
Environment.ExitCode = 1;
OutputMessage("Press any key to continue.");
Console.ReadKey(true);
}
}
private static Process Validate(string[] args)
{
OutputMessage("Validating update...");
// argument format - PID, DownloadUrl, Prefix
if (args == null)
{
throw new ArgumentNullException(nameof(args), "The arguments cannot be null or empty");
}
if (args == null || args.Length != 3)
{
throw new ArgumentOutOfRangeException(nameof(args), "The arguments do not contain valid information.");
}
// check if the passed pid is valid
if (!int.TryParse(args[0], out int pid))
{
throw new InvalidCastException("The process id value is not valid.");
}
DownloadUrl = args[1];
if (string.IsNullOrWhiteSpace(DownloadUrl))
{
throw new ArgumentNullException(nameof(DownloadUrl), "The download url cannot be null or empty.");
}
Prefix = args[2];
if (string.IsNullOrWhiteSpace(Prefix))
{
throw new ArgumentNullException(nameof(Prefix), "The prefix cannot be null or empty.");
}
// get the process associated with the pid
var process = ProcessUtils.GetProcess(pid);
if (process == null)
{
throw new Exception("The process id value is not associated with a running application.");
}
// get a list of the running processes with the same name and file location
var executablePath = ProcessUtils.GetMainModuleFilepath(pid);
var processes = ProcessUtils.GetProcesses(process.ProcessName, executablePath);
// check if there is more than one instance of the application running
if (processes.Length != 1)
{
throw new Exception("The application to be updated has more than one instance running.");
}
// get the command line of the process
var commandLine = ProcessUtils.GetCommandLineForProcess(pid);
ApplicationArgs = ProcessUtils.CommandLineToArgs(commandLine);
if (ApplicationArgs == null || ApplicationArgs.Length == 0)
{
throw new ArgumentNullException(nameof(ApplicationArgs), "The application args cannot be null or empty.");
}
return(process);
}