/// <summary>
/// Validate if the current parser is correct, or if another parser seems more appropriate.
/// </summary>
private void ValidateParser(string[] files)
{
if (IsWrongParser())
{
// by default use the UNIX parser, if none detected
if (DetectedParser == FtpParser.Auto)
{
DetectedParser = FtpParser.Unix;
}
if (CurrentParser == FtpParser.Auto)
{
CurrentParser = DetectedParser;
}
// if machine listings not supported, switch to UNIX parser
if (IsWrongMachineListing())
{
CurrentParser = DetectedParser;
}
// use the initially set parser (from SYST)
if (IsParserValid(CurrentParser, files))
{
client.LogStatus(FtpTraceLevel.Verbose, "Confirmed format " + CurrentParser.ToString());
ParserConfirmed = true;
return;
}
foreach (var p in parsers)
{
if (IsParserValid(p, files))
{
CurrentParser = p;
client.LogStatus(FtpTraceLevel.Verbose, "Detected format " + CurrentParser.ToString());
ParserConfirmed = true;
return;
}
}
CurrentParser = FtpParser.Unix;
client.LogStatus(FtpTraceLevel.Verbose, "Could not detect format. Using default " + CurrentParser.ToString());
}
}
/// <summary>
/// Try to auto-detect which parser is suitable given a system string.
/// </summary>
public void Init(FtpOperatingSystem system, FtpParser forcedParser = FtpParser.Auto)
{
ParserConfirmed = false;
if (forcedParser != FtpParser.Auto)
{
// use the parser that the server handler specified
CurrentParser = forcedParser;
}
else
{
if (system == FtpOperatingSystem.Windows)
{
CurrentParser = FtpParser.Windows;
}
else if (system == FtpOperatingSystem.Unix || system == FtpOperatingSystem.SunOS)
{
CurrentParser = FtpParser.Unix;
}
else if (system == FtpOperatingSystem.VMS)
{
CurrentParser = FtpParser.VMS;
}
else if (system == FtpOperatingSystem.IBMzOS)
{
CurrentParser = FtpParser.IBMzOS;
}
else if (system == FtpOperatingSystem.IBMOS400)
{
CurrentParser = FtpParser.IBMOS400;
}
else
{
CurrentParser = FtpParser.Unix;
client.LogStatus(FtpTraceLevel.Warn, "Cannot auto-detect listing parser for system '" + system + "', using Unix parser");
}
}
DetectedParser = CurrentParser;
client.LogStatus(FtpTraceLevel.Verbose, "Listing parser set to: " + DetectedParser.ToString());
}