/// <summary>
/// Main Detection function. The main cause of an error here is the inability to connect to the remote
/// systems registry. This will most often be down to either the remote registry service not running
/// or the user having insufficient privilege to access the remote registry
/// </summary>
/// <param name="remoteCredentials"></param>
/// <param name="onlyMicrosoft"></param>
/// <returns></returns>
public int Detect(RemoteCredentials remoteCredentials, ref String errorText)
{
Layton.Common.Controls.Impersonator impersonator = null;
String remoteHost = remoteCredentials.RemoteHost;
int status = 0;
bool existingServiceStatus = false;
try
{
// We may want to impersonate a different user so that we can audit remote computers - if so
// start the impersonation here
if (remoteCredentials.Username != null && remoteCredentials.Username != "")
{
impersonator = new Impersonator(remoteCredentials.Username, remoteCredentials.Domain, remoteCredentials.Password);
}
// Ensure that the remote registry service is running on the remote Asset and that we can
// connect. If the service is not active we may start it
status = ValidateRemoteRegistryService(remoteCredentials, out existingServiceStatus);
if (status != 0)
{
errorText = "The Remote Registry Service was not active and could not be started";
return(status);
}
// Now begin the audit
this.ReadPublisherMappings();
this._applicationSerials.Detect(remoteHost);
RegistryKey rootCUKey;
RegistryAccess registryAccess = new RegistryAccess();
RegistryKey rootLMKey = null;
// Attempt to connect to the remote registry and open the HKEY_LOCAL_MACHINE key
status = registryAccess.OpenRegistry(Registry.LocalMachine, remoteHost, out rootLMKey);
if (status != 0)
{
errorText = registryAccess.LastErrorText;
return(status);
}
// Attempt to connect to the remote registry and open the HKEY_CURRENT_USER key
status = registryAccess.OpenRegistry(Registry.CurrentUser, remoteHost, out rootCUKey);
if (status != 0)
{
errorText = registryAccess.LastErrorText;
return(status);
}
// Open the Softare uninstall key under HKLM and scan it
RegistryKey uninstallKey = rootLMKey.OpenSubKey(UNINSTALLKEY);
if (uninstallKey != null)
{
this.ScanUninstallKey(uninstallKey);
uninstallKey.Close();
}
// Open the software uninstall key under HKCU and scan it
uninstallKey = rootCUKey.OpenSubKey(UNINSTALLKEY);
if (uninstallKey != null)
{
this.ScanUninstallKey(uninstallKey);
uninstallKey.Close();
}
// Scan the Windows installer key
this.ScanWindowsInstaller(rootLMKey);
// close all open keys
rootLMKey.Close();
rootCUKey.Close();
}
catch (Exception ex)
{
errorText = "An exception occurred while trying to connect to the system registry on Asset [" + remoteHost + "] - The error was [" + ex.Message + "]";
return(-1);
}
finally
{
// Ensure that we restore the initial status of the remote registry service on the target computer
RestoreRemoteRegistyStatus(remoteCredentials, existingServiceStatus);
// Displose of any impersonator object if created
if (impersonator != null)
{
impersonator.Dispose();
}
}
// Iterate through the applications detected by the above and attempt to recover any serial number
foreach (ApplicationInstance thisApplication in this)
{
ApplicationSerial thisSerial = null;
if (thisApplication.Guid != "")
{
thisSerial = this._applicationSerials.ContainsApplication(thisApplication.Guid);
}
if ((thisSerial == null) && (thisApplication.Name != ""))
{
thisSerial = this._applicationSerials.ContainsApplication(thisApplication.Name);
}
if (thisSerial != null)
{
thisApplication.Serial = thisSerial;
thisSerial.Matched = true;
}
}
errorText = "";
return(0);
}