protected internal virtual byte[] UrlEncode(byte[] bytes, int offset, int count)
{
if (!ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
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 (cSpaces == 0 && cUnsafe == 0)
{
return(bytes);
}
// 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);
}
protected internal virtual byte[] UrlEncode(byte[] bytes, int offset, int count)
{
if (!ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
int num = 0;
int num2 = 0;
for (int i = 0; i < count; i++)
{
char ch = (char)bytes[offset + i];
if (ch == ' ')
{
num++;
}
else if (!HttpEncoderUtility.IsUrlSafeChar(ch))
{
num2++;
}
}
if ((num == 0) && (num2 == 0))
{
return(bytes);
}
byte[] buffer = new byte[count + (num2 * 2)];
int num4 = 0;
for (int j = 0; j < count; j++)
{
byte num6 = bytes[offset + j];
char ch2 = (char)num6;
if (HttpEncoderUtility.IsUrlSafeChar(ch2))
{
buffer[num4++] = num6;
}
else if (ch2 == ' ')
{
buffer[num4++] = 0x2b;
}
else
{
buffer[num4++] = 0x25;
buffer[num4++] = (byte)HttpEncoderUtility.IntToHex((num6 >> 4) & 15);
buffer[num4++] = (byte)HttpEncoderUtility.IntToHex(num6 & 15);
}
}
return(buffer);
}
internal static string?UrlEncodeUnicode(string?value)
{
if (value == null)
{
return(null);
}
int l = value.Length;
StringBuilder sb = new StringBuilder(l);
for (int i = 0; i < l; i++)
{
char ch = value[i];
if ((ch & 0xff80) == 0)
{ // 7 bit?
if (HttpEncoderUtility.IsUrlSafeChar(ch))
{
sb.Append(ch);
}
else if (ch == ' ')
{
sb.Append('+');
}
else
{
sb.Append('%');
sb.Append(HexConverter.ToCharLower(ch >> 4));
sb.Append(HexConverter.ToCharLower(ch));
}
}
else
{ // arbitrary Unicode?
sb.Append("%u");
sb.Append(HexConverter.ToCharLower(ch >> 12));
sb.Append(HexConverter.ToCharLower(ch >> 8));
sb.Append(HexConverter.ToCharLower(ch >> 4));
sb.Append(HexConverter.ToCharLower(ch));
}
}
return(sb.ToString());
}
internal static string UrlEncodeUnicode(string value, bool ignoreAscii)
{
if (value == null)
{
return(null);
}
int l = value.Length;
StringBuilder sb = new StringBuilder(l);
for (int i = 0; i < l; i++)
{
char ch = value[i];
if ((ch & 0xff80) == 0)
{ // 7 bit?
if (ignoreAscii || HttpEncoderUtility.IsUrlSafeChar(ch))
{
sb.Append(ch);
}
else if (ch == ' ')
{
sb.Append('+');
}
else
{
sb.Append('%');
sb.Append(HttpEncoderUtility.IntToHex((ch >> 4) & 0xf));
sb.Append(HttpEncoderUtility.IntToHex((ch) & 0xf));
}
}
else
{ // arbitrary Unicode?
sb.Append("%u");
sb.Append(HttpEncoderUtility.IntToHex((ch >> 12) & 0xf));
sb.Append(HttpEncoderUtility.IntToHex((ch >> 8) & 0xf));
sb.Append(HttpEncoderUtility.IntToHex((ch >> 4) & 0xf));
sb.Append(HttpEncoderUtility.IntToHex((ch) & 0xf));
}
}
return(sb.ToString());
}
internal string UrlEncodeUnicode(string value, bool ignoreAscii)
{
if (value == null)
{
return(null);
}
int length = value.Length;
StringBuilder builder = new StringBuilder(length);
for (int i = 0; i < length; i++)
{
char ch = value[i];
if ((ch & 0xff80) == 0)
{
if (ignoreAscii || HttpEncoderUtility.IsUrlSafeChar(ch))
{
builder.Append(ch);
}
else if (ch == ' ')
{
builder.Append('+');
}
else
{
builder.Append('%');
builder.Append(HttpEncoderUtility.IntToHex((ch >> 4) & '\x000f'));
builder.Append(HttpEncoderUtility.IntToHex(ch & '\x000f'));
}
}
else
{
builder.Append("%u");
builder.Append(HttpEncoderUtility.IntToHex((ch >> 12) & '\x000f'));
builder.Append(HttpEncoderUtility.IntToHex((ch >> 8) & '\x000f'));
builder.Append(HttpEncoderUtility.IntToHex((ch >> 4) & '\x000f'));
builder.Append(HttpEncoderUtility.IntToHex(ch & '\x000f'));
}
}
return(builder.ToString());
}
private static byte[] UrlEncode(byte[] bytes, int offset, int count)
{
if (!ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
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 (cSpaces == 0 && cUnsafe == 0)
{
// DevDiv 912606: respect "offset" and "count"
if (0 == offset && bytes.Length == count)
{
return(bytes);
}
else
{
var 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);
}