public static Uri GetSignatureUrl(string filename)
{
try
{
int encodingType;
int contentType;
int formatType;
IntPtr certStore = IntPtr.Zero;
IntPtr cryptMsg = IntPtr.Zero;
IntPtr context = IntPtr.Zero;
if (!WinCrypt.CryptQueryObject(WinCrypt.CERT_QUERY_OBJECT_FILE, Marshal.StringToHGlobalUni(filename), WinCrypt.CERT_QUERY_CONTENT_FLAG_ALL, WinCrypt.CERT_QUERY_FORMAT_FLAG_ALL, 0, out encodingType, out contentType, out formatType, ref certStore, ref cryptMsg, ref context))
{
return(null);
}
// Get size of the encoded message.
int cbData = 0;
if (!WinCrypt.CryptMsgGetParam(cryptMsg, WinCrypt.CMSG_ENCODED_MESSAGE, 0, IntPtr.Zero, ref cbData))
{
return(null);
}
var vData = new byte[cbData];
// Get the encoded message.
if (!WinCrypt.CryptMsgGetParam(cryptMsg, WinCrypt.CMSG_ENCODED_MESSAGE, 0, vData, ref cbData))
{
return(null);
}
var signedCms = new SignedCms();
signedCms.Decode(vData);
foreach (var signerInfo in signedCms.SignerInfos)
{
foreach (CryptographicAttributeObject signedAttribute in signerInfo.SignedAttributes)
{
if (signedAttribute.Oid.Value == "1.3.6.1.4.1.311.2.1.12")
{
foreach (AsnEncodedData x in signedAttribute.Values)
{
string z = x.Format(true);
int i = z.IndexOf("68 74 74 70 73 3a 2f 2f"); // "https://"
if (i >= 0)
{
return(new Uri(System.Text.UTF8Encoding.UTF8.GetString(FromHex(z.Substring(i)))));
}
}
}
}
}
}
catch (Exception) { }
return(null);
}
static void Main(string[] args)
{
// If this application is signed, get the URL of the signature, this will be used to lock this application to a server.
Uri signedUrl = WinCrypt.GetSignatureUrl(System.Reflection.Assembly.GetEntryAssembly().Location);
if (signedUrl != null)
{
NameValueCollection urlArguments = HttpUtility.ParseQueryString(signedUrl.Query);
if (urlArguments["serverid"] != null)
{
LockToServerId = urlArguments["serverid"];
LockToHostname = signedUrl.Host;
}
}
if (Environment.OSVersion.Version.Major >= 6)
{
SetProcessDPIAware();
}
string update = null;
foreach (string arg in args)
{
if ((arg.Length > 3) && (string.Compare(arg.Substring(0, 3), "-l:", true) == 0))
{
try { Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo(arg.Substring(3)); } catch (ArgumentException) { }
}
if ((arg.Length == 5) && (string.Compare(arg.Substring(0, 5), "-info", true) == 0))
{
string dialogText = string.Format(Properties.Resources.Version, System.Reflection.Assembly.GetExecutingAssembly().ImageRuntimeVersion);
if (LockToHostname != null)
{
dialogText += "\r\n" + string.Format(Properties.Resources.LockedToHost, LockToHostname);
}
if (LockToServerId != null)
{
dialogText += "\r\n" + string.Format(Properties.Resources.LockedToServerId, LockToServerId);
}
MessageBox.Show(dialogText, Properties.Resources.MeshCentralAssistant);
return;
}
if (arg.Length > 8 && arg.Substring(0, 8).ToLower() == "-update:")
{
update = arg.Substring(8);
}
}
if (update != null)
{
// Perform self update, no mutex
MainForm main = new MainForm(args);
}
else
{
// Named Mutexes are available computer-wide. Use a unique name.
using (var mutex = new Mutex(false, "MeshCentralAssistantSingletonMutex"))
{
// TimeSpan.Zero to test the mutex's signal state and
// return immediately without blocking
bool isAnotherInstanceOpen = !mutex.WaitOne(TimeSpan.Zero);
if (isAnotherInstanceOpen)
{
return;
}
// Setup settings & visual style
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Properties.Settings.Default.Upgrade();
Application.ThreadException += new System.Threading.ThreadExceptionEventHandler(ExceptionSink);
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(UnhandledExceptionEventSink);
Application.SetUnhandledExceptionMode(UnhandledExceptionMode.CatchException, true);
foreach (string arg in args)
{
if (arg.Length > 3 && string.Compare(arg.Substring(0, 3), "-l:", true) == 0)
{
try { Thread.CurrentThread.CurrentUICulture = new System.Globalization.CultureInfo(arg.Substring(3)); } catch (ArgumentException) { }
}
}
MainForm main;
System.Globalization.CultureInfo currentCulture;
do
{
currentCulture = Thread.CurrentThread.CurrentUICulture;
main = new MainForm(args);
if (main.forceExit == false)
{
Application.Run(main);
}
}while (currentCulture.Equals(Thread.CurrentThread.CurrentUICulture) == false);
mutex.ReleaseMutex();
}
}
}