internal static byte[] UrlDecodeToBytesInternal(byte[] bytes, int offset, int count)
{
MemoryStream memoryStream = new MemoryStream();
int num = offset + count;
for (int i = offset; i < num; i++)
{
char c = (char)bytes[i];
if (c == '+')
{
c = ' ';
}
else if (c == '%' && i < num - 2)
{
int @char = HttpUtility.GetChar(bytes, i + 1, 2);
if (@char != -1)
{
c = (char)@char;
i += 2;
}
}
memoryStream.WriteByte((byte)c);
}
return(memoryStream.ToArray());
}
public static string UrlDecode(string s, Encoding encoding)
{
if (s == null || s.Length == 0 || !s.Contains(new char[]
{
'%',
'+'
}))
{
return(s);
}
if (encoding == null)
{
encoding = Encoding.UTF8;
}
int length = s.Length;
List <byte> list = new List <byte>();
for (int i = 0; i < length; i++)
{
char c = s[i];
if (c == '%' && i + 2 < length && s[i + 1] != '%')
{
int @char;
if (s[i + 1] == 'u' && i + 5 < length)
{
@char = HttpUtility.GetChar(s, i + 2, 4);
if (@char != -1)
{
HttpUtility.WriteCharBytes(list, (char)@char, encoding);
i += 5;
}
else
{
HttpUtility.WriteCharBytes(list, '%', encoding);
}
}
else if ((@char = HttpUtility.GetChar(s, i + 1, 2)) != -1)
{
HttpUtility.WriteCharBytes(list, (char)@char, encoding);
i += 2;
}
else
{
HttpUtility.WriteCharBytes(list, '%', encoding);
}
}
else if (c == '+')
{
HttpUtility.WriteCharBytes(list, ' ', encoding);
}
else
{
HttpUtility.WriteCharBytes(list, c, encoding);
}
}
byte[] bytes = list.ToArray();
return(encoding.GetString(bytes));
}
internal static string UrlDecodeInternal(byte[] bytes, int offset, int count, Encoding encoding)
{
StringBuilder stringBuilder = new StringBuilder();
MemoryStream memoryStream = new MemoryStream();
int num = count + offset;
int i = offset;
while (i < num)
{
if (bytes[i] != 37 || i + 2 >= count || bytes[i + 1] == 37)
{
goto IL_C6;
}
if (bytes[i + 1] == 117 && i + 5 < num)
{
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
memoryStream.SetLength(0L);
}
int @char = HttpUtility.GetChar(bytes, i + 2, 4);
if (@char == -1)
{
goto IL_C6;
}
stringBuilder.Append((char)@char);
i += 5;
}
else
{
int @char;
if ((@char = HttpUtility.GetChar(bytes, i + 1, 2)) == -1)
{
goto IL_C6;
}
memoryStream.WriteByte((byte)@char);
i += 2;
}
IL_10E:
i++;
continue;
IL_C6:
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
memoryStream.SetLength(0L);
}
if (bytes[i] == 43)
{
stringBuilder.Append(' ');
goto IL_10E;
}
stringBuilder.Append((char)bytes[i]);
goto IL_10E;
}
if (memoryStream.Length > 0L)
{
stringBuilder.Append(HttpUtility.GetChars(memoryStream, encoding));
}
return(stringBuilder.ToString());
}
