/// <summary>
/// Checks the specified state.
/// </summary>
/// <param name="state">The state.</param>
private void Check(object state)
{
try
{
Log.Write("{0} started.", MethodInfoHelper.GetCurrentMethodName());
if (_updating)
{
Log.Write("Updater is already updating.");
}
var fetch = new Fetch(2, 5000, 500);
var remoteUri = new Uri(_localConfig.RemoteConfigUri);
fetch.Load(remoteUri.AbsoluteUri);
if (!fetch.Success)
{
Log.Write("Fetch error: {0}", fetch.Response.StatusDescription);
_remoteConfig = null;
return;
}
string data = Encoding.UTF8.GetString(fetch.ResponseData);
_remoteConfig = new Manifest(data);
if (_remoteConfig == null)
{
return;
}
if (_localConfig.SecurityToken != _remoteConfig.SecurityToken)
{
Log.Write("Security token mismatch.");
return;
}
Log.Write("Remote config is valid. Local version is {0}. Remote version is {1}.",
_localConfig.Version, _remoteConfig.Version);
if (_remoteConfig.Version == _localConfig.Version)
{
Log.Write("Versions are the same.");
return;
}
if (_remoteConfig.Version < _localConfig.Version)
{
Log.Write("Remote version is older.");
return;
}
if (OnEvent(string.Format("Current version is {0}. Do you want to ugrade to version {1}?",
_localConfig.Version, _remoteConfig.Version)))
{
_updating = true;
Update();
_updating = false;
}
}
catch (Exception ex)
{
Log.Write("{0} failed. {1}", MethodInfoHelper.GetCurrentMethodName(), ex.Message);
}
finally
{
Log.Write("{0} ended.", MethodInfoHelper.GetCurrentMethodName());
_updating = false;
}
}
