Нужен кому-нибудь код получения PR на C# ?

Оригинальный скрипт на php - http://gofman.name/pr/code.php

Код на C#

	

public class GooglePageRankGetter

{

	private readonly uint _googleMagic = 0xE6359A60;



	public GooglePageRankGetter()

	{

	}



	public int GetPageRank(string url)

	{

		if (url.ToLower().StartsWith("http://") == false)

			url = "http://" + url;



		url = "info:" + url;

		uint checksum = GetChecksum(url);

		string googleUrl = "http://www.google.com/search?client=navclient-auto&ch=6" +

			checksum + "&features=Rank&q=" + url;



		string pageText = GetResponseText(googleUrl);



		string pageRankString = "0";

		Regex re = new Regex(":(?<1>\\d+)\\n", RegexOptions.Singleline | RegexOptions.IgnoreCase);

		Match m = re.Match(pageText);

		if (m.Success) pageRankString = m.Groups[1].ToString();



		int pageRank = int.Parse(pageRankString);

		return pageRank;

	}



	private uint GetChecksum(string url)

	{

		long a = 0x9E3779B9;

		long b = a;

		long c = _googleMagic;

		int k = 0;

		int len = url.Length;



		while (len >= 12)

		{

			a += ((int) url[k + 0] + ((int) url[k + 1] << 8) + ((int) url[k + 2] << 16) + ((int) url[k + 3] << 24));

			b += ((int) url[k + 4] + ((int) url[k + 5] << 8) + ((int) url[k + 6] << 16) + ((int) url[k + 7] << 24));

			c += ((int) url[k + 8] + ((int) url[k + 9] << 8) + ((int) url[k + 10] << 16) + ((int) url[k + 11] << 24));



			List<long> mix = Mix(a, b, c);

			a = mix[0];

			b = mix[1];

			c = mix[2];

			k += 12;

			len -= 12;

		}

		c += url.Length;



		switch (len)

		{

			case 11: c += ((int) url[k + 10] << 24); goto case 10;

			case 10: c += ((int) url[k + 9] << 16); goto case 9;

			case 9: c += ((int) url[k + 8] << 8); goto case 8;

			case 8: b += ((int) url[k + 7] << 24); goto case 7;

			case 7: b += ((int) url[k + 6] << 16); goto case 6;

			case 6: b += ((int) url[k + 5] << 8); goto case 5;

			case 5: b += ((int) url[k + 4]); goto case 4;

			case 4: a += ((int) url[k + 3] << 24); goto case 3;

			case 3: a += ((int) url[k + 2] << 16); goto case 2;

			case 2: a += ((int) url[k + 1] << 8); goto case 1;

			case 1: a += ((int) url[k + 0]); break;

		}



		List<long> mixx = Mix(a, b, c);

		return (uint) mixx[2];

	}



	private List<long> Mix(long a, long b, long c)

	{

		a -= b; a -= c; a = (int) a ^ (ZeroFill(c, 13));

		b -= c; b -= a; b ^= (int) a << 8;

		c -= a; c -= b; c = (int) c ^ (ZeroFill(b, 13));

		a -= b; a -= c; a = (int) a ^ (ZeroFill(c, 12));

		b -= c; b -= a; b ^= (int) a << 16;

		c -= a; c -= b; c = (int) c ^ (ZeroFill(b, 5));

		a -= b; a -= c; a = (int) a ^ (ZeroFill(c, 3));

		b -= c; b -= a; b ^= (int) a << 10;

		c -= a; c -= b; c = (int) c ^ (ZeroFill(b, 15));



		List<long> arr = new List<long>();

		arr.Add(a);

		arr.Add(b);

		arr.Add(c);

		return arr;

	}



	private long ZeroFill(long a, int b)

	{

		long z = 2147483648;

		if ((z & a) > 0)

		{

			a = (int) a >> 1;

			a = (int) a & (~z);

			a = (int) a | 0x40000000;

			a = (int) a >> (b - 1);

		}

		else

			a = (int) a >> b;

		return a;

	}



	private string GetResponseText(string url)

	{

		string pageText = "";



		HttpWebRequest request = null;

		WebResponse response = null;

		System.IO.Stream stream = null;

		System.IO.StreamReader reader = null;

		try

		{

			request = (HttpWebRequest) WebRequest.Create(url);

			request.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; .NET CLR 1.1.4322)";

			request.Timeout = 4 * 1000;



			response = request.GetResponse();



			stream = response.GetResponseStream();

			reader = new System.IO.StreamReader(

				stream, System.Text.Encoding.GetEncoding(1251));

			pageText = reader.ReadToEnd();

			reader.Close();

			response.Close();

		}

		catch (WebException) // Ошибка соединения, либо у Гугла нет информации о странице

		{

		}

		finally

		{

			if (response != null) response.Close();

			if (stream != null) stream.Close();

			if (reader != null) reader.Close();

		}

		return pageText;

	}

}