public void Serialize(SysLog.Message message, Stream stream)
{
var priorityValue = CalculatePriorityValue(message.Facility, message.Severity);
// Note: The .Net ISO 8601 "o" format string uses 7 decimal places for fractional second. Syslog spec only allows 6, hence the custom format string
var timestamp = message.DateTimeOffset.HasValue
? message.DateTimeOffset.Value.ToString("yyyy-MM-ddTHH:mm:ss.ffffffK")
: null;
var messageBuilder = new StringBuilder();
messageBuilder.Append("<").Append(priorityValue).Append(">");
messageBuilder.Append(message.Version);
messageBuilder.Append(" ").Append(timestamp.FormatSyslogField(NilValue));
messageBuilder.Append(" ").Append(message.HostName.FormatSyslogAsciiField(NilValue, 255, asciiCharsBuffer));
messageBuilder.Append(" ").Append(message.AppName.FormatSyslogAsciiField(NilValue, 48, asciiCharsBuffer));
messageBuilder.Append(" ").Append(message.ProcId.FormatSyslogAsciiField(NilValue, 128, asciiCharsBuffer));
messageBuilder.Append(" ").Append(message.MsgId.FormatSyslogAsciiField(NilValue, 32, asciiCharsBuffer));
writeStream(stream, Encoding.ASCII, messageBuilder.ToString());
// Structured data
foreach(SysLog.StructuredDataElement sdElement in message.StructuredDataElements)
{
messageBuilder.Clear()
.Append(" ")
.Append("[")
.Append(sdElement.SdId.FormatSyslogSdnameField(asciiCharsBuffer));
writeStream(stream, Encoding.ASCII, messageBuilder.ToString());
foreach(System.Collections.Generic.KeyValuePair<string, string> sdParam in sdElement.Parameters)
{
messageBuilder.Clear()
.Append(" ")
.Append(sdParam.Key.FormatSyslogSdnameField(asciiCharsBuffer))
.Append("=")
.Append("\"")
.Append(
sdParam.Value != null ?
sdParam.Value
.Replace("\\", "\\\\")
.Replace("\"", "\\\"")
.Replace("]", "\\]")
:
String.Empty
)
.Append("\"");
writeStream(stream, Encoding.UTF8, messageBuilder.ToString());
}
// ]
stream.WriteByte(93);
}
if (!String.IsNullOrWhiteSpace(message.Data))
{
// Space
stream.WriteByte(32);
stream.Write(Encoding.UTF8.GetPreamble(), 0, Encoding.UTF8.GetPreamble().Length);
writeStream(stream, Encoding.UTF8, message.Data);
}
}
public void Send(SysLog.Message message, ISyslogMessageSerializer serializer)
{
byte[] datagramBytes = serializer.Serialize(message);
udpClient.Send(datagramBytes, datagramBytes.Length);
}
public void Serialize(SysLog.Message message, Stream stream)
{
var priorityValue = CalculatePriorityValue(message.Facility, message.Severity);
string timestamp = null;
if (message.DateTimeOffset.HasValue)
{
DateTimeOffset dt = message.DateTimeOffset.Value;
timestamp = String.Format("{0} {1} {2}", Months[dt.Month-1], dt.Day < 10 ? " " + dt.Day : dt.Day.ToString(), dt.ToString("HH:mm:ss"));
}
var headerBuilder = new StringBuilder();
headerBuilder.Append("<").Append(priorityValue).Append(">");
headerBuilder.Append(timestamp).Append(" ");
headerBuilder.Append(message.HostName).Append(" ");
headerBuilder.Append(message.AppName).Append(": ");
headerBuilder.Append(message.Data ?? "");
byte[] asciiBytes = Encoding.ASCII.GetBytes(headerBuilder.ToString());
stream.Write(asciiBytes, 0, asciiBytes.Length);
}
public static byte[] Serialize(this ISyslogMessageSerializer serializer, SysLog.Message message)
{
byte[] datagramBytes;
using (var stream = new MemoryStream())
{
serializer.Serialize(message, stream);
stream.Position = 0;
datagramBytes = new byte[stream.Length];
stream.Read(datagramBytes, 0, (int)stream.Length);
}
return datagramBytes;
}
protected static int CalculatePriorityValue(SysLog.Facility facility, SysLog.Severity severity)
{
return ((int)facility * 8) + (int)severity;
}
public static void OpenSysLog(SysLog.Facility facility, string ServerAddr, int ServerPort = 514, bool useRfc5424 = false)
{
OpenSysLog(facility, null, ServerAddr, ServerPort, useRfc5424);
}
public static void OpenSysLog(SysLog.Facility facility, string applicationName, string ServerAddr, int ServerPort = 514, bool useRfc5424 = false)
{
try
{
syslogFacility = facility;
syslogMachineName = Environment.MachineName;
if (String.IsNullOrEmpty(applicationName))
syslogApplicationName = System.AppDomain.CurrentDomain.FriendlyName;
else
syslogApplicationName = applicationName;
syslogApplicationName += String.Format("[{0}]", Process.GetCurrentProcess().Id);
if (useRfc5424)
syslogSerializer = new SyslogRfc5424MessageSerializer();
else
syslogSerializer = new SyslogRfc3164MessageSerializer();
syslogSender = new SyslogUdpSender(ServerAddr, ServerPort);
}
catch
{
}
}
