/// <summary>Runs the data through our presentation handlers.</summary>
/// <param name="data">The data to format</param>
/// <param name="connection">The connection object this data is going to be sent to</param>
/// <param name="sendAllData">Indicates if all data should be sent.</param>
/// <returns>A formatted string of data</returns>
internal static string FormatData(string data, Connection connection, bool sendAllData)
{
if (connection.Terminal.UseWordWrap && connection.Terminal.Width > 0)
{
data = WordWrapHandler.Parse(data, connection.Terminal.Width);
}
if (connection.Terminal.UseBuffer && !sendAllData)
{
connection.OutputBuffer.Clear();
string[] temp = BufferHandler.Parse(data);
string[] output;
bool appendOverflow = false;
if (temp.Length > connection.PagingRowLimit)
{
appendOverflow = true;
connection.OutputBuffer.Append(temp);
output = connection.OutputBuffer.GetRows(BufferDirection.Forward, connection.PagingRowLimit);
}
else
{
output = temp;
}
data = BufferHandler.Format(
output,
false,
appendOverflow,
connection.OutputBuffer.CurrentLocation,
connection.OutputBuffer.Length);
}
if (connection.Terminal.UseANSI)
{
data = AnsiHandler.Parse(data);
}
else
{
// TODO: Remove regex into separate parser.
var options = RegexOptions.None;
var regex = new Regex(@"<%?\w+[^>]*%>", options);
string input = data;
string replacement = string.Empty;
data = regex.Replace(input, replacement);
}
if (!connection.Terminal.UseMXP)
{
// TODO: Remove regex into separate parser.
var options = RegexOptions.None;
var regex = new Regex(@"</?\w+[^>]*>", options);
string input = data;
string replacement = string.Empty;
data = regex.Replace(input, replacement);
}
return(data);
}
/// <summary>Post-processing as called after negotiation.</summary>
public override void AfterNegotiation()
{
// If we got a successful turn on.
if (this.UsState == TelnetOptionState.YES)
{
this.Connection.Terminal.UseMXP = true;
// Request a version tag from the client.
this.Connection.Send(AnsiHandler.Parse("<%mxpsecureline%><VERSION>"), true);
this.AwaitingVersionResponse = true;
// @@@ TODO: Send our mxp headers.
}
}
// TODO: Optimize more
public static string Parse(char[] buffer, int bufferPos, TerminalOptions terminalOptions)
{
var result = "";
var token = "";
var charFromNewline = 0;
var isToken = false;
for (var i = 0; i < bufferPos; i++)
{
// OutputBuffer / OutputParser should be the only place writing ANSI NewLine character sequences, to help guarantee correct Telnet protocol handling.
// (Telnet protocol says new lines sent should be CR LF regardless of what OS the server is running on and what OS the client is running on.)
Debug.Assert(buffer[i] != '\r' && buffer[i] != '\n', "Output should not include explicit newline characters. Use <%nl%> or OutputBuffer WriteLine functions instead.");
if (isToken && buffer[i] == '>')
{
if (buffer[i - 1] == '%')
{
isToken = false;
token = token.Trim('%');
if (token == "nl")
{
charFromNewline = 0;
token = "";
result += AnsiSequences.NewLine;
continue;
}
if (terminalOptions.UseANSI)
{
result += AnsiHandler.ConvertCode(token);
}
token = "";
continue;
}
}
if (!isToken && buffer[i] == '<')
{
if (buffer[i + 1] == '%')
{
if (i == 0 || buffer[i - 1] != '\\')
{
isToken = true;
continue;
}
result = result.Remove(result.Length - 1);
}
}
if (!isToken)
{
result += buffer[i];
charFromNewline++;
if (charFromNewline <= terminalOptions.Width || terminalOptions.UseWordWrap == false)
{
continue;
}
var lastSpaceIndex = result.LastIndexOf(' ');
if (lastSpaceIndex > 0)
{
result = result.Remove(lastSpaceIndex, 1);
charFromNewline = result.Length - lastSpaceIndex;
result = result.Insert(lastSpaceIndex, AnsiSequences.NewLine);
}
else
{
result += AnsiSequences.NewLine;
charFromNewline = 0;
}
}
else
{
token += buffer[i];
}
}
return(result);
}
//TODO: Optimize more
public static string Parse(char[] buffer, int bufferPos, TerminalOptions terminalOptions)
{
var result = "";
var token = "";
var charFromNewline = 0;
var isToken = false;
for (var i = 0; i < bufferPos; i++)
{
if (isToken && buffer[i] == '>')
{
if (buffer[i - 1] == '%')
{
isToken = false;
token = token.Trim('%');
if (token == "nl")
{
charFromNewline = 0;
token = "";
result += AnsiSequences.NewLine;
continue;
}
if (terminalOptions.UseANSI)
{
result += AnsiHandler.ConvertCode(token);
}
token = "";
continue;
}
}
if (!isToken && buffer[i] == '<')
{
if (buffer[i + 1] == '%')
{
if (i == 0 || buffer[i - 1] != '\\')
{
isToken = true;
continue;
}
result = result.Remove(result.Length - 1);
}
}
if (!isToken)
{
result += buffer[i];
charFromNewline++;
if (charFromNewline <= terminalOptions.Width || terminalOptions.UseWordWrap == false)
{
continue;
}
var lastSpaceIndex = result.LastIndexOf(' ');
if (lastSpaceIndex > 0)
{
result = result.Remove(lastSpaceIndex, 1);
charFromNewline = result.Length - lastSpaceIndex;
result = result.Insert(lastSpaceIndex, AnsiSequences.NewLine);
}
else
{
result += AnsiSequences.NewLine;
charFromNewline = 0;
}
}
else
{
token += buffer[i];
}
}
return(result);
}
