| zastilla |
31-01-2011 22:43:53 |
ayuda de c# a delphi megavideo
Hola
quiera implementar este codigo en un aplicacion que estoy haciendo, pero no tengo ni idea de c#
me interesa especialmente la funcion: private string decrypt(string str, string key1, string key2)
el codigo sirve para transformar la url de megavideo.
tambien lo tengo en php y en actionscript por si alguno sabe.
gracias y a ver si hay suerte:
Código:
//he quitado los using...
namespace Vispo.Programs.MegaVideoClient
{
public partial class frmMain : Form
{
public frmMain()
{
InitializeComponent();
}
private void btnStart_Click(object sender, EventArgs e)
{
string strSub1;
int intPos1;
//Obtaining HTTPData
txtHTTPData.Text = DownloadWebPage(txtMegavideoURL.Text);
//Obtaining K1 var
strSub1 = txtHTTPData.Text.Substring(txtHTTPData.Text.IndexOf("flashvars.k1 = ")+16);
intPos1 = strSub1.IndexOf(";");
txtK1.Text = strSub1.Substring(0, intPos1-1);
//Obtaining K2 var
strSub1 = txtHTTPData.Text.Substring(txtHTTPData.Text.IndexOf("flashvars.k2 = ") + 16);
intPos1 = strSub1.IndexOf(";");
txtK2.Text = strSub1.Substring(0, intPos1 - 1);
//Obtaining S var
strSub1 = txtHTTPData.Text.Substring(txtHTTPData.Text.IndexOf("flashvars.s = ") + 15);
intPos1 = strSub1.IndexOf(";");
txtS.Text = strSub1.Substring(0, intPos1 - 1);
//Obtaining UN var
strSub1 = txtHTTPData.Text.Substring(txtHTTPData.Text.IndexOf("flashvars.un = ") + 16);
intPos1 = strSub1.IndexOf(";");
txtUN.Text = strSub1.Substring(0, intPos1 - 1);
//Obtainig FLV flash video
txtMegavideoFLV.Text = "http://www" + txtS.Text + ".megavideo.com/files/" + decrypt(txtUN.Text, txtK1.Text, txtK2.Text) + "/";
}
public static Array aRedimension(Array orgArray, Int32 tamaño)
{
Type t = orgArray.GetType().GetElementType();
Array nArray = Array.CreateInstance(t, tamaño);
Array.Copy(orgArray, 0, nArray, 0, Math.Min(orgArray.Length, tamaño));
return nArray;
}
public string Concat(Array items, string delimiter)
{
bool first = true;
StringBuilder sb = new StringBuilder();
foreach (object item in items)
{
if (item == null)
continue;
if (!first)
{
sb.Append(delimiter);
}
else
{
first = false;
}
sb.Append(item);
}
return sb.ToString();
}
public string[] DeConcat(string strphrase)
{
string[] arrTemp={};
for (int i = 0; i < strphrase.Length; i++)
{
arrTemp = (string[])aRedimension(arrTemp, arrTemp.Length + 1);
arrTemp[arrTemp.Length - 1] = strphrase[i].ToString();
}
return arrTemp;
}
private string decrypt(string str, string key1, string key2)
{
string [] __reg1={};
int __reg3 = 0;
string __reg0;
while (__reg3 < str.Length)
{
__reg0 = str[__reg3].ToString();
if (__reg0 == "0")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0000";
}
else
{
if (__reg0 == "1")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0001";
}
else
{
if (__reg0 == "2")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0010";
}
else
{
if (__reg0 == "3")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0011";
}
else
{
if (__reg0 == "4")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0100";
}
else
{
if (__reg0 == "5")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0101";
}
else
{
if (__reg0 == "6")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0110";
}
else
{
if (__reg0 == "7")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="0111";
}
else
{
if (__reg0 == "8")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1000";
}
else
{
if (__reg0 == "9")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1001";
}
else
{
if (__reg0 == "a")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1010";
}
else
{
if (__reg0 == "b")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1011";
}
else
{
if (__reg0 == "c")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1100";
}
else
{
if (__reg0 == "d")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1101";
}
else
{
if (__reg0 == "e")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1110";
}
else
{
if (__reg0 == "f")
{
__reg1 = (string []) aRedimension(__reg1,__reg1.Length+1);
__reg1[__reg1.Length-1]="1111";
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
++__reg3;
}
string strTemp1 = Concat(__reg1, "");
__reg1 = DeConcat(strTemp1);
int[] __reg6;
__reg6 = new int[384];
__reg3 = 0;
while (__reg3 < 384)
{
key1 = ((int.Parse(key1) * 11 + 77213) % 81371).ToString();
key2 = ((int.Parse(key2) * 17 + 92717) % 192811).ToString();
__reg6[__reg3] = (int.Parse(key1) + int.Parse(key2)) % 128;
++__reg3;
}
__reg3 = 256;
int __reg5, __reg4, __reg8;
while (__reg3 >= 0)
{
__reg5 = __reg6[__reg3];
__reg4 = __reg3 % 128;
__reg8 = int.Parse(__reg1[__reg5]);
__reg1[__reg5] = __reg1[__reg4];
__reg1[__reg4] = __reg8.ToString();
--__reg3;
}
__reg3 = 0;
while (__reg3 < 128)
{
__reg1[__reg3] = (int.Parse(__reg1[__reg3]) ^ (__reg6[__reg3 + 256] & 1)).ToString() ;
++__reg3;
}
string __reg12;
__reg12 = Concat(__reg1,"");
string[] __reg7={};
__reg3 = 0;
int intTmp1 = 0;
while (__reg3 < __reg12.Length)
{
string __reg9;
//if (intTmp1 < 4) __reg9 = __reg12.Substring(__reg3, 4 - intTmp1);
//else __reg9 = "";
__reg9 = __reg12.Substring(__reg3, 4);
__reg7 = (string[])aRedimension(__reg7, __reg7.Length + 1);
__reg7[__reg7.Length - 1] = __reg9;
__reg3 = __reg3 + 4;
intTmp1++;
}
string[] __reg2 = {};
__reg3 = 0;
while (__reg3 < __reg7.Length)
{
__reg0=__reg7[__reg3];
if (__reg0 == "0000")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "0";
}
else
{
if (__reg0 == "0001")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "1";
}
else
{
if (__reg0 == "0010")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "2";
}
else
{
if (__reg0 == "0011")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "3";
}
else
{
if (__reg0 == "0100")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "4";
}
else
{
if (__reg0 == "0101")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "5";
}
else
{
if (__reg0 == "0110")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "6";
}
else
{
if (__reg0 == "0111")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "7";
}
else
{
if (__reg0 == "1000")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "8";
}
else
{
if (__reg0 == "1001")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "9";
}
else
{
if (__reg0 == "1010")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "a";
}
else
{
if (__reg0 == "1011")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "b";
}
else
{
if (__reg0 == "1100")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "c";
}
else
{
if (__reg0 == "1101")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "d";
}
else
{
if (__reg0 == "1110")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "e";
}
else
{
if (__reg0 == "1111")
{
__reg2 = (string[])aRedimension(__reg2, __reg2.Length + 1);
__reg2[__reg2.Length - 1] = "f";
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
}
++__reg3;
}
return Concat(__reg2, "");
}
public string DownloadWebPage(string Url)
{
HttpWebRequest WebRequestObject = (HttpWebRequest)HttpWebRequest.Create(Url);
WebRequestObject.UserAgent = ".NET Framework/2.0";
WebRequestObject.Referer = "http://www.megavideo.com/";
WebResponse Response = WebRequestObject.GetResponse();
Stream WebStream = Response.GetResponseStream();
StreamReader Reader = new StreamReader(WebStream);
string PageContent = Reader.ReadToEnd();
Reader.Close();
WebStream.Close();
Response.Close();
return PageContent;
}
}
}
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