// hack: category might be confused for HostName, it might end there
private string CheckCategoryInHostName(SyslogEntry entry)
{
var hostName = entry.Header.HostName;
if (hostName != null && hostName.StartsWith("%"))
{
return(hostName);
}
return(null);
}
// WARN (CEV): Remove if not used
private SyslogEntry ParseSyslogMessage(byte[] msg)
{
string s = Encoding.UTF8.GetString(msg);
SyslogEntry entry = new SyslogEntry {
};
// PRI
if (s[0] != '<')
{
throw new Exception("Invalid message: " + s);
}
s = s.Substring(1);
int n = s.IndexOf('>');
entry.Priority = (Forwarder.Priority) int.Parse(s.Substring(0, n));
// Skip Syslog version if any "<PRI>VERSION"
s = s.Substring(n + 1);
entry.Version = s[0];
s = s.Substring(1).TrimStart();
// Timestamp
n = s.IndexOf(" ");
string timestamp = s.Substring(0, n);
entry.Timestamp = XmlConvert.ToDateTime(timestamp, XmlDateTimeSerializationMode.Utc);
s = s.Substring(n + 1).TrimStart();
// HOSTNAME
n = s.IndexOf(" ");
entry.Hostname = s.Substring(0, n);
s = s.Substring(n + 1).TrimStart();
// hostname "app name"
// App-Name
n = s.IndexOf(" ");
entry.AppName = s.Substring(0, n);
s = s.Substring(n + 1).TrimStart();
// PID
n = s.IndexOf(" ");
entry.Pid = int.Parse(s.Substring(0, n));
s = s.Substring(n + 1).TrimStart();
// MessageID
n = s.IndexOf(" ");
entry.MessageID = s.Substring(0, n);
s = s.Substring(n + 1).TrimStart();
entry.Message = s.TrimStart();
return(entry);
}
public static string Serialize(SyslogEntry entry)
{
var writer = new StringBuilder();
writer.WriteHeader(entry);
writer.WriteStructuredData(entry.StructuredData);
if (!string.IsNullOrEmpty(entry.Message))
{
writer.Append(SyslogChars.Space);
writer.Append(entry.Message);
}
return(writer.ToString());
}
private static void WriteHeader(this StringBuilder writer, SyslogEntry entry)
{
writer.Append('<');
var pri = GetPriority(entry);
writer.Append(pri);
writer.Append('>');
writer.Append('1');
writer.Append(Space);
var header = entry.Header;
var tsStr = header.Timestamp == null ? string.Empty : header.Timestamp.Value.ToString(TimestampFormat);
writer.AppendWordOrNil(tsStr);
writer.AppendWordOrNil(header.HostName);
writer.AppendWordOrNil(header.AppName);
writer.AppendWordOrNil(header.ProcId);
writer.AppendWordOrNil(header.MsgId);
}
public void Send(SyslogEntry entry)
{
var payload = SyslogSerializer.Serialize(entry);
Send(payload);
}
private static int GetPriority(this SyslogEntry entry)
{
return(((int)entry.Facility) * 8 + (int)entry.Severity);
}
