public static string UrlDecode(string url)
{
if (url == null)
{
return(null);
}
Utility._UrlDecoder urlDecoder = new Utility._UrlDecoder(url.Length, Encoding.UTF8);
int length = url.Length;
for (int i = 0; i < length; i++)
{
char c = url[i];
if (c == '+')
{
urlDecoder.AddByte(32);
}
else
{
if (c == '%' && i < length - 2)
{
if (url[i + 1] == 'u' && i < length - 5)
{
int num = Utility._HexToInt(url[i + 2]);
int num2 = Utility._HexToInt(url[i + 3]);
int num3 = Utility._HexToInt(url[i + 4]);
int num4 = Utility._HexToInt(url[i + 5]);
if (num >= 0 && num2 >= 0 && num3 >= 0 && num4 >= 0)
{
urlDecoder.AddChar((char)(num << 12 | num2 << 8 | num3 << 4 | num4));
i += 5;
goto IL_12D;
}
}
else
{
int num5 = Utility._HexToInt(url[i + 1]);
int num6 = Utility._HexToInt(url[i + 2]);
if (num5 >= 0 && num6 >= 0)
{
urlDecoder.AddByte((byte)(num5 << 4 | num6));
i += 2;
goto IL_12D;
}
}
}
if ((c & 'ﾀ') == '\0')
{
urlDecoder.AddByte((byte)c);
}
else
{
urlDecoder.AddChar(c);
}
}
IL_12D :;
}
return(urlDecoder.GetString());
}
public static string UrlDecode(string url)
{
if (url == null)
{
return(null);
}
Utility._UrlDecoder __UrlDecoder = new Utility._UrlDecoder(url.Length, Encoding.UTF8);
int length = url.Length;
for (int i = 0; i < length; i++)
{
char chr = url[i];
if (chr != '+')
{
if (chr == '%' && i < length - 2)
{
if (url[i + 1] != 'u' || i >= length - 5)
{
int num = Utility._HexToInt(url[i + 1]);
int num1 = Utility._HexToInt(url[i + 2]);
if (num < 0 || num1 < 0)
{
goto Label1;
}
__UrlDecoder.AddByte((byte)(num << 4 | num1));
i += 2;
goto Label0;
}
else
{
int num2 = Utility._HexToInt(url[i + 2]);
int num3 = Utility._HexToInt(url[i + 3]);
int num4 = Utility._HexToInt(url[i + 4]);
int num5 = Utility._HexToInt(url[i + 5]);
if (num2 < 0 || num3 < 0 || num4 < 0 || num5 < 0)
{
goto Label1;
}
__UrlDecoder.AddChar((char)(num2 << 12 | num3 << 8 | num4 << 4 | num5));
i += 5;
goto Label0;
}
}
Label1:
if ((chr & '\uFF80') != 0)
{
__UrlDecoder.AddChar(chr);
}
else
{
__UrlDecoder.AddByte((byte)chr);
}
}
else
{
__UrlDecoder.AddByte(32);
}
Label0:
}
return(__UrlDecoder.GetString());
}