public static string UrlEncode(string s, Encoding encoding)
{
int length;
if (s == null || (length = s.Length) == 0)
{
return(s);
}
bool flag = false;
foreach (char c in s)
{
if (c < '0' || (c < 'A' && c > '9') || (c > 'Z' && c < 'a') || c > 'z')
{
if (!HttpUtility.NotEncoded(c))
{
flag = true;
break;
}
}
}
if (!flag)
{
return(s);
}
if (encoding == null)
{
encoding = Encoding.UTF8;
}
byte[] bytes = new byte[encoding.GetMaxByteCount(length)];
int bytes2 = encoding.GetBytes(s, 0, length, bytes, 0);
return(Encoding.ASCII.GetString(HttpUtility.UrlEncodeToBytesInternal(bytes, 0, bytes2)));
}
public static byte[] UrlEncodeToBytes(string s, Encoding encoding)
{
if (s == null)
{
return(null);
}
if (s.Length == 0)
{
return(new byte[0]);
}
if (encoding == null)
{
encoding = Encoding.UTF8;
}
byte[] bytes = encoding.GetBytes(s);
return(HttpUtility.UrlEncodeToBytesInternal(bytes, 0, bytes.Length));
}
public static byte[] UrlEncodeToBytes(byte[] bytes, int offset, int count)
{
int num;
if (bytes == null || (num = bytes.Length) == 0)
{
return(bytes);
}
if (count == 0)
{
return(new byte[0]);
}
if (offset < 0 || offset >= num)
{
throw new ArgumentOutOfRangeException("offset");
}
if (count < 0 || count > num - offset)
{
throw new ArgumentOutOfRangeException("count");
}
return(HttpUtility.UrlEncodeToBytesInternal(bytes, offset, count));
}
public static byte[] UrlEncodeToBytes(byte[] bytes)
{
int count;
return((bytes != null && (count = bytes.Length) != 0) ? HttpUtility.UrlEncodeToBytesInternal(bytes, 0, count) : bytes);
}
public static string UrlEncode(byte[] bytes)
{
int count;
return((bytes != null) ? (((count = bytes.Length) != 0) ? Encoding.ASCII.GetString(HttpUtility.UrlEncodeToBytesInternal(bytes, 0, count)) : string.Empty) : null);
}
