public override void OnEnteredState()
{
this.zipTempName = Path.GetTempFileName() + ".zip";
try
{
bool flag;
if (OS.VerifyFrameworkVersion(this.downloadMe.NetFxMajorVersion, this.downloadMe.NetFxMinorVersion, this.downloadMe.NetFxServicePack, true))
{
flag = false;
}
else
{
flag = true;
}
base.OnProgress(0.0);
FileStream underlyingStream = new FileStream(this.zipTempName, FileMode.Create, FileAccess.Write, FileShare.Read);
try
{
SiphonStream output = new SiphonStream(underlyingStream);
this.abortMeStream = output;
ProgressEventHandler progressCallback = (sender, e) => base.OnProgress(e.Percent);
WebHelpers.DownloadFile(new Uri(this.downloadMe.ChooseDownloadUrl(flag)), output, progressCallback);
output.Flush();
this.abortMeStream = null;
output = null;
}
finally
{
if (underlyingStream != null)
{
underlyingStream.Close();
underlyingStream = null;
}
}
base.StateMachine.QueueInput(PrivateInput.GoToExtracting);
}
catch (Exception exception)
{
this.exception = exception;
if (base.AbortRequested)
{
base.StateMachine.QueueInput(PrivateInput.GoToAborted);
}
else
{
this.exception = exception;
base.StateMachine.QueueInput(PrivateInput.GoToError);
}
}
}