Visual Studio Prerequisites Bootstrap Package Downloader

BootstrapDownloader.linq

<Query Kind="Program" />

// https://msdn.microsoft.com/en-us/library/hh873130%28v=vs.140%29.aspx

void Main()
{
	MyWebClient webClient = new MyWebClient();

	string baseDir = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory), "bootstrapDownloads");
	if (!Directory.Exists(baseDir)) Directory.CreateDirectory(baseDir);
	Console.WriteLine("Download Directory: {0}", baseDir);

	string targetDir = Path.Combine(
		Environment.GetFolderPath(Environment.SpecialFolder.ProgramFilesX86),
		@"Microsoft Visual Studio 14.0\SDK\Bootstrapper\Packages");

	foreach (string eachProductDir in Directory.GetDirectories(targetDir))
	{
		string productDir = Path.Combine(baseDir, Path.GetFileName(eachProductDir));
		if (!Directory.Exists(productDir)) Directory.CreateDirectory(productDir);

		string eachProductXmlFilePath = Path.Combine(eachProductDir, "Product.xml");
		if (!File.Exists(eachProductXmlFilePath)) continue;

		XmlDocument productDoc = new XmlDocument();
		productDoc.Load(eachProductXmlFilePath);

		XmlNode productCodeNode = productDoc.DocumentElement.Attributes["ProductCode"];
		if (productCodeNode == null) continue;

		Console.WriteLine("Current Product: " + productCodeNode.Value);
		foreach (string eachProductSubDir in Directory.GetDirectories(eachProductDir))
		{
			string productSubDir = Path.Combine(productDir, Path.GetFileName(eachProductSubDir));
			if (!Directory.Exists(productSubDir)) Directory.CreateDirectory(productSubDir);

			string eachPackageXmlFilePath = Path.Combine(eachProductSubDir, "Package.xml");
			if (!File.Exists(eachPackageXmlFilePath)) continue;

			XmlDocument packageDoc = new XmlDocument();
			packageDoc.Load(eachPackageXmlFilePath);

			XmlNamespaceManager nsManager = new XmlNamespaceManager(packageDoc.NameTable);
			nsManager.AddNamespace("bootstrapper", "http://schemas.microsoft.com/developer/2004/01/bootstrapper");

			XmlNodeList nodes = packageDoc.SelectNodes("/bootstrapper:Package/bootstrapper:Strings/bootstrapper:String", nsManager);
			if (nodes == null || nodes.Count < 1) continue;

			foreach (XmlNode eachNode in nodes)
			{
				XmlNode nameNode = eachNode.Attributes["Name"];
				if (nameNode == null || String.IsNullOrWhiteSpace(nameNode.Value)) continue;

				Uri temp;
				if (!Uri.TryCreate(eachNode.InnerText, UriKind.Absolute, out temp)) continue;
				
				string filePath = null;
				string url = eachNode.InnerText;
				Exception throwedException = null;

				try
				{
					webClient.DownloadData(url);
					
					Uri tempUri = webClient.ResponseUri;
					url = tempUri.AbsoluteUri;

					string fileName = Path.GetFileName(tempUri.GetComponents(UriComponents.Path, UriFormat.SafeUnescaped));
					filePath = Path.Combine(productSubDir, fileName);
					filePath.Dump();
				}
				catch (Exception ex)
				{
					throwedException = ex;
				}

				Console.WriteLine("* {0}: {1} -> {2}", throwedException == null ? "SUCCEED" : "FAILED", url, filePath);
				if (throwedException != null) Console.WriteLine(throwedException.Message);
			}
		}
	}
}

// http://stackoverflow.com/questions/690587/using-webclient-in-c-sharp-is-there-a-way-to-get-the-url-of-a-site-after-being-r
class MyWebClient : System.Net.WebClient
{
	Uri _responseUri;

	public Uri ResponseUri
	{
		get { return _responseUri; }
	}

	protected override WebResponse GetWebResponse(WebRequest request)
	{
		WebResponse response = base.GetWebResponse(request);
		_responseUri = response.ResponseUri;
		return response;
	}
}