private static byte[] UrlEncodeNonAscii(byte[] bytes, int offset, int count)
{
int cNonAscii = 0;
// count them first
for (int i = 0; i < count; i++)
{
if (IsNonAsciiByte(bytes[offset + i]))
{
cNonAscii++;
}
}
// nothing to expand?
if (0u >= (uint)cNonAscii)
{
return(bytes);
}
// expand not 'safe' characters into %XX, spaces to +s
byte[] expandedBytes = new byte[count + cNonAscii * 2];
int pos = 0;
for (int i = 0; i < count; i++)
{
byte b = bytes[offset + i];
if (IsNonAsciiByte(b))
{
expandedBytes[pos++] = (byte)'%';
expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 0xf);
expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex(b & 0x0f);
}
else
{
expandedBytes[pos++] = b;
}
}
return(expandedBytes);
}
private static byte[] UrlEncodeToBytesImpl(byte[] bytes, int offset, int count)
{
int cSpaces = 0;
int cUnsafe = 0;
// count them first
for (int i = 0; i < count; i++)
{
char ch = (char)bytes[offset + i];
if (ch == ' ')
{
cSpaces++;
}
else if (!HttpEncoderUtility.IsUrlSafeChar(ch))
{
cUnsafe++;
}
}
// nothing to expand?
if (0u >= (uint)cSpaces && 0u >= (uint)cUnsafe)
{
// DevDiv 912606: respect "offset" and "count"
if (0 == offset && bytes.Length == count)
{
return(bytes);
}
else
{
byte[] subarray = new byte[count];
Buffer.BlockCopy(bytes, offset, subarray, 0, count);
return(subarray);
}
}
// expand not 'safe' characters into %XX, spaces to +s
byte[] expandedBytes = new byte[count + cUnsafe * 2];
int pos = 0;
for (int i = 0; i < count; i++)
{
byte b = bytes[offset + i];
char ch = (char)b;
if (HttpEncoderUtility.IsUrlSafeChar(ch))
{
expandedBytes[pos++] = b;
}
else if (ch == ' ')
{
expandedBytes[pos++] = (byte)'+';
}
else
{
expandedBytes[pos++] = (byte)'%';
expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex((b >> 4) & 0xf);
expandedBytes[pos++] = (byte)HttpEncoderUtility.IntToHex(b & 0x0f);
}
}
return(expandedBytes);
}
