private static string UrlDecodeInternal(byte[] bytes, int offset, int count, Encoding encoding)
{
if (!XmlaHttpUtility.ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
XmlaHttpUtility.UrlDecoder urlDecoder = new XmlaHttpUtility.UrlDecoder(count, encoding);
int i = 0;
while (i < count)
{
int num = offset + i;
byte b = bytes[num];
if (b == 43)
{
b = 32;
goto IL_E6;
}
if (b != 37 || i >= count - 2)
{
goto IL_E6;
}
if (bytes[num + 1] == 117 && i < count - 5)
{
int num2 = XmlaHttpUtility.HexToInt((char)bytes[num + 2]);
int num3 = XmlaHttpUtility.HexToInt((char)bytes[num + 3]);
int num4 = XmlaHttpUtility.HexToInt((char)bytes[num + 4]);
int num5 = XmlaHttpUtility.HexToInt((char)bytes[num + 5]);
if (num2 < 0 || num3 < 0 || num4 < 0 || num5 < 0)
{
goto IL_E6;
}
char ch = (char)(num2 << 12 | num3 << 8 | num4 << 4 | num5);
i += 5;
urlDecoder.AddChar(ch);
}
else
{
int num6 = XmlaHttpUtility.HexToInt((char)bytes[num + 1]);
int num7 = XmlaHttpUtility.HexToInt((char)bytes[num + 2]);
if (num6 >= 0 && num7 >= 0)
{
b = (byte)(num6 << 4 | num7);
i += 2;
goto IL_E6;
}
goto IL_E6;
}
IL_ED:
i++;
continue;
IL_E6:
urlDecoder.AddByte(b);
goto IL_ED;
}
return(urlDecoder.GetString());
}
private static byte[] UrlEncode(byte[] bytes, int offset, int count)
{
if (!XmlaHttpUtility.ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
int num = 0;
int num2 = 0;
for (int i = 0; i < count; i++)
{
char c = (char)bytes[offset + i];
if (c == ' ')
{
num++;
}
else if (!XmlaHttpUtility.IsUrlSafeChar(c))
{
num2++;
}
}
if (num == 0 && num2 == 0)
{
return(bytes);
}
byte[] array = new byte[count + num2 * 2];
int num3 = 0;
for (int j = 0; j < count; j++)
{
byte b = bytes[offset + j];
char c2 = (char)b;
if (XmlaHttpUtility.IsUrlSafeChar(c2))
{
array[num3++] = b;
}
else if (c2 == ' ')
{
array[num3++] = 43;
}
else
{
array[num3++] = 37;
array[num3++] = (byte)XmlaHttpUtility.IntToHex(b >> 4 & 15);
array[num3++] = (byte)XmlaHttpUtility.IntToHex((int)(b & 15));
}
}
return(array);
}
private static byte[] UrlEncodeNonAscii(byte[] bytes, int offset, int count, bool alwaysCreateNewReturnValue)
{
if (!XmlaHttpUtility.ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
int num = 0;
for (int i = 0; i < count; i++)
{
if (XmlaHttpUtility.IsNonAsciiByte(bytes[offset + i]))
{
num++;
}
}
if (!alwaysCreateNewReturnValue && num == 0)
{
return(bytes);
}
byte[] array = new byte[count + num * 2];
int num2 = 0;
for (int j = 0; j < count; j++)
{
byte b = bytes[offset + j];
if (XmlaHttpUtility.IsNonAsciiByte(b))
{
array[num2++] = 37;
array[num2++] = (byte)XmlaHttpUtility.IntToHex(b >> 4 & 15);
array[num2++] = (byte)XmlaHttpUtility.IntToHex((int)(b & 15));
}
else
{
array[num2++] = b;
}
}
return(array);
}
private static byte[] UrlDecodeInternal(byte[] bytes, int offset, int count)
{
if (!XmlaHttpUtility.ValidateUrlEncodingParameters(bytes, offset, count))
{
return(null);
}
int num = 0;
byte[] array = new byte[count];
for (int i = 0; i < count; i++)
{
int num2 = offset + i;
byte b = bytes[num2];
if (b == 43)
{
b = 32;
}
else if (b == 37 && i < count - 2)
{
int num3 = XmlaHttpUtility.HexToInt((char)bytes[num2 + 1]);
int num4 = XmlaHttpUtility.HexToInt((char)bytes[num2 + 2]);
if (num3 >= 0 && num4 >= 0)
{
b = (byte)(num3 << 4 | num4);
i += 2;
}
}
array[num++] = b;
}
if (num < array.Length)
{
byte[] array2 = new byte[num];
Array.Copy(array, array2, num);
array = array2;
}
return(array);
}
