/// <summary>
/// This constructor will create a logrotateconf object as a copy of another one
/// </summary>
/// <param name="m_source">The source logrotateconf object to copy</param>
public logrotateconf(logrotateconf m_source)
{
bgzipcompress = m_source.bgzipcompress;
//scompresscmd = m_source.scompresscmd;
//suncompressedcmd = m_source.suncompressedcmd;
scompressext = m_source.scompressext;
//scompressoptions = m_source.scompressoptions;
bcopy = m_source.bcopy;
bcopytruncate = m_source.bcopytruncate;
bcreate = m_source.bcreate;
bdaily = m_source.bdaily;
bdateext = m_source.bdateext;
sdateformat = m_source.sdateformat;
bdelaycompress = m_source.bdelaycompress;
bifempty = m_source.bifempty;
smail = m_source.smail;
iminsize = m_source.iminsize;
imaxsize = m_source.imaxsize;
imaxage = m_source.imaxage;
bmissingok = m_source.bmissingok;
bmonthly = m_source.bmonthly;
solddir = m_source.solddir;
spostrotate = m_source.spostrotate;
sprerotate = m_source.sprerotate;
sfirstaction = m_source.sfirstaction;
slastaction = m_source.slastaction;
irotate = m_source.irotate;
lsize = m_source.lsize;
bsharedscripts = m_source.bsharedscripts;
istart = m_source.istart;
stabooext = m_source.stabooext;
bweekly = m_source.bweekly;
byearly = m_source.byearly;
bshred = m_source.bshred;
ishredcycles = m_source.ishredcycles;
bmaillast = m_source.bmaillast;
ssmtpserver = m_source.ssmtpserver;
ismtpport = m_source.ismtpport;
bsmtpssl = m_source.bsmtpssl;
ssmtpuser = m_source.ssmtpuser;
ssmtpuserpwd = m_source.ssmtpuserpwd;
sinclude = m_source.sinclude;
stabooext = m_source.stabooext;
ssmtpfrom = m_source.ssmtpfrom;
bretry_logfileopen = m_source.bretry_logfileopen;
inumretry_logfileopen = m_source.inumretry_logfileopen;
inumms_retry_logfileopen = m_source.inumms_retry_logfileopen;
}
/// <summary>
/// This constructor will create a logrotateconf object as a copy of another one
/// </summary>
/// <param name="m_source">The source logrotateconf object to copy</param>
public logrotateconf(logrotateconf m_source)
{
bcompress = m_source.bcompress;
//scompresscmd = m_source.scompresscmd;
//suncompressedcmd = m_source.suncompressedcmd;
scompressext = m_source.scompressext;
//scompressoptions = m_source.scompressoptions;
bcopy = m_source.bcopy;
bcopytruncate = m_source.bcopytruncate;
bcreate = m_source.bcreate;
bdaily = m_source.bdaily;
bdateext = m_source.bdateext;
sdateformat = m_source.sdateformat;
bdelaycompress = m_source.bdelaycompress;
bifempty = m_source.bifempty;
smail = m_source.smail;
iminsize = m_source.iminsize;
imaxage = m_source.imaxage;
bmissingok = m_source.bmissingok;
bmonthly = m_source.bmonthly;
solddir = m_source.solddir;
spostrotate = m_source.spostrotate;
sprerotate = m_source.sprerotate;
sfirstaction = m_source.sfirstaction;
slastaction = m_source.slastaction;
irotate = m_source.irotate;
lsize = m_source.lsize;
bsharedscripts = m_source.bsharedscripts;
istart = m_source.istart;
stabooext = m_source.stabooext;
bweekly = m_source.bweekly;
byearly = m_source.byearly;
bshred = m_source.bshred;
ishredcycles = m_source.ishredcycles;
bmaillast = m_source.bmaillast;
ssmtpserver = m_source.ssmtpserver;
ismtpport = m_source.ismtpport;
bsmtpssl = m_source.bsmtpssl;
ssmtpuser = m_source.ssmtpuser;
ssmtpuserpwd = m_source.ssmtpuserpwd;
sinclude = m_source.sinclude;
stabooext = m_source.stabooext;
ssmtpfrom = m_source.ssmtpfrom;
}
private static void ProcessConfileFileSection(string starting_line, StreamReader sr,logrotateconf lrc)
{
// the first part of the line contains the file(s) or folder(s) that will be associated with this section
// we need to break this line apart by spaces
string split = "";
bool bQuotedPath = false;
for (int i = 0; i < starting_line.Length; i++)
{
switch (starting_line[i])
{
// if we see the open brace, we are done
case '{':
i = starting_line.Length;
break;
// if we see a ", then this is either starting or ending a file path with spaces
case '\"':
if (bQuotedPath == false)
bQuotedPath = true;
else
bQuotedPath = false;
split += starting_line[i];
break;
case ' ':
// we see a space and we are not processing a quote path, so this is a delimeter and treat it as such
if (bQuotedPath == false)
{
string newsplit = "";
// remove any invalid characters before adding
char[] invalidPathChars = Path.GetInvalidPathChars();
foreach (char ipc in invalidPathChars)
{
for (int ii = 0; ii < split.Length; ii++)
{
if (split[ii] != ipc)
{
newsplit += split[ii];
}
}
split = newsplit;
newsplit = "";
}
lrc.Increment_ProcessCount();
FilePathConfigSection.Add(split, lrc);
split = "";
}
else
split += starting_line[i];
break;
default:
split += starting_line[i];
break;
}
}
/*
string[] split = starting_line.Split(new char[] { ' ' });
for (int i = 0; i < split.Length-1; i++)
{
FilePathConfigSection.Add(split[i], lrc);
}
*/
// read until we hit a } and process
while (true)
{
string line = sr.ReadLine();
if (line == null)
break;
line = line.Trim();
Logging.Log(Strings.ReadLine+" " + line,Logging.LogType.Debug);
// skip blank lines
if (line == "")
continue;
// if line begins with #, then it is a comment and can be ignored
if (line[0] == '#')
{
Logging.Log(Strings.Skipping+" "+Strings.Comment,Logging.LogType.Debug);
continue;
}
if (line.Contains("}"))
{
break;
}
lrc.Parse(line, cla.Debug);
}
}
/// <summary>
/// Execute any prerotate commands. The commands are written to a temporary script file, and then this script file is executed with c:\windows\cmd.
/// </summary>
/// <param name="lrc">logrotateconf object</param>
/// <param name="path_to_logfile">The path to the logfile, which is passed as a paramenter to the script</param>
/// <returns>True if script is executed with no errors, False is there was an error</returns>
private static bool PreRotate(logrotateconf lrc, string path_to_logfile)
{
if (lrc.PreRotate == null)
throw new ArgumentNullException("lrc.PreRotate");
return CreateScriptandExecute(lrc.PreRotate, path_to_logfile);
}
private static void ProcessConfigFile(string m_path_to_file)
{
Logging.Log(Strings.ParseConfigFile+" " + m_path_to_file,Logging.LogType.Verbose);
StreamReader sr = new StreamReader(m_path_to_file);
bool bSawASection = false;
// read in lines until done
while (true)
{
string line = sr.ReadLine();
if (line == null)
break;
line = line.Trim();
Logging.Log(Strings.ReadLine+" " + line,Logging.LogType.Debug);
// skip blank lines
if (line == "")
continue;
// if line begins with #, then it is a comment and can be ignored
if (line[0] == '#')
{
Logging.Log(Strings.Skipping+" "+Strings.Comment,Logging.LogType.Debug);
continue;
}
// see if there is a { in the line. If so, this is the beginning of a section
// otherwise it may be a global setting
if (line.Contains("{"))
{
bSawASection = true;
Logging.Log(Strings.Processing+" "+Strings.NewSection,Logging.LogType.Verbose);
// create a new config object taking defaults from Global Config
logrotateconf lrc = new logrotateconf(GlobalConfig);
ProcessConfileFileSection(line, sr, lrc);
}
else
{
if (bSawASection == false)
GlobalConfig.Parse(line, cla.Debug);
else
{
Logging.Log(Strings.GlobalOptionsAboveSections, Logging.LogType.Error);
}
}
}
}
/// <summary>
/// Determines the name of the rotated log file
/// </summary>
/// <param name="lrc">logrotateconf object</param>
/// <param name="fi">FileInfo object of the rotated log file</param>
/// <returns>String containing rotated log file name</returns>
private static string GetRotateName(logrotateconf lrc, FileInfo fi)
{
string rotate_name = "";
if (lrc.DateExt)
{
string time_str = lrc.DateFormat;
time_str = time_str.Replace("%Y", DateTime.Now.Year.ToString());
time_str = time_str.Replace("%m", DateTime.Now.Month.ToString("D2"));
time_str = time_str.Replace("%d", DateTime.Now.Day.ToString("D2"));
time_str = time_str.Replace("%s", ((double)(DateTime.UtcNow - new DateTime(1970, 1, 1)).TotalSeconds).ToString());
rotate_name = fi.Name + time_str;
}
else
{
rotate_name = fi.Name + "." + lrc.Start;
}
return rotate_name;
}
/// <summary>
/// Returns the path that the rotated log should go, depends on the olddir directive
/// </summary>
/// <param name="lrc">logrotateconf object</param>
/// <param name="fi">the rotated log fileinfo object</param>
/// <returns>String containing path for the rotated log file</returns>
private static string GetRotatePath(logrotateconf lrc, FileInfo fi)
{
// determine path to put the rotated log file
string rotate_path = "";
if (lrc.OldDir != "")
{
if (!Directory.Exists(lrc.OldDir))
{
Directory.CreateDirectory(lrc.OldDir);
}
rotate_path = lrc.OldDir + "\\";
}
else
rotate_path = Path.GetDirectoryName(fi.FullName) + "\\";
return rotate_path;
}
/// <summary>
/// Delete a file using the configured method (shred or delete)
/// </summary>
/// <param name="m_filepath">Path to the file to delete</param>
/// <param name="lrc">Currently loaded configuration file</param>
private static void DeleteRotateFile(string m_filepath, logrotateconf lrc)
{
if (File.Exists(m_filepath) == false)
return;
if (lrc.Shred)
{
Logging.Log(Strings.ShreddingFile+" " + m_filepath, Logging.LogType.Verbose);
if (cla.Debug == false)
{
ShredFile sf = new ShredFile(m_filepath);
sf.ShredIt(lrc.ShredCycles, cla.Debug);
}
}
else
{
Logging.Log(Strings.DeletingFile+" " + m_filepath, Logging.LogType.Verbose);
if (cla.Debug == false)
{
File.Delete(m_filepath);
}
}
}
private static string GetRotateLogDirectory(string logfilepath, logrotateconf lrc)
{
if (lrc.OldDir != "")
return lrc.OldDir;
else
return Path.GetDirectoryName(logfilepath);
}
/// <summary>
/// Check to see if the logfile specified is eligible for rotation
/// </summary>
/// <param name="logfilepath">Full path to the log file to check</param>
/// <param name="lrc">logrotationconf object</param>
/// <returns>True if need to rotate, False if not</returns>
private static bool CheckForRotate(string logfilepath, logrotateconf lrc)
{
if (cla.Force)
{
Logging.Log(Strings.ForceOptionRotate, Logging.LogType.Verbose);
return true;
}
bool bDoRotate = false;
// first check if file exists. if it doesn't error out unless we are set not to
if (File.Exists(logfilepath) == false)
{
if (lrc.MissingOK==false)
{
Logging.Log(logfilepath + " "+Strings.CouldNotBeFound,Logging.LogType.Error);
return false;
}
}
FileInfo fi = new FileInfo(logfilepath);
//if (logfilepath.Length == 0)
if (fi.Length == 0)
{
if (lrc.IfEmpty == false)
{
Logging.Log(Strings.LogFileEmpty+" - " + Strings.Skipping,Logging.LogType.Verbose);
return false;
}
}
// determine if we need to rotate the file. this can be based on a number of criteria, including size, date, etc.
if (lrc.MinSize != 0)
{
if (fi.Length < lrc.MinSize)
{
Logging.Log(Strings.NoRotateNotGTEMinimumFileSize,Logging.LogType.Verbose);
return false;
}
}
if (lrc.Size != 0)
{
if (fi.Length >= lrc.Size)
{
Logging.Log(Strings.RotateBasedonFileSize,Logging.LogType.Verbose);
bDoRotate = true;
}
}
else
{
//if ((lrc.Daily == false) && (lrc.Monthly == false) && (lrc.Yearly == false))
// fix for rotate not working as submitted by Matt Richardson 1/19/2015
if ((lrc.Daily == false) && (lrc.Weekly == false) && (lrc.Monthly == false) && (lrc.Yearly == false))
{
// this is a misconfiguration is we get here
Logging.Log(Strings.NoTimestampDirectives, Logging.LogType.Verbose);
}
else
{
// check last date of rotation
DateTime lastRotate = Status.GetRotationDate(logfilepath);
TimeSpan ts = DateTime.Now - lastRotate;
if (lrc.Daily)
{
// check to see if lastRotate is more than a day old
if (ts.TotalDays > 1)
{
bDoRotate = true;
}
}
if (lrc.Weekly)
{
// check if total # of days is greater than a week or if the current weekday is less than the weekday of the last rotation
if (ts.TotalDays > 7)
{
bDoRotate = true;
}
else if (DateTime.Now.DayOfWeek < lastRotate.DayOfWeek)
{
bDoRotate = true;
}
}
if (lrc.Monthly)
{
// check if the month is different
if ((lastRotate.Year != DateTime.Now.Year) || ((lastRotate.Year == DateTime.Now.Year) && (lastRotate.Month != DateTime.Now.Month)))
{
bDoRotate = true;
}
}
if (lrc.Yearly)
{
// check if the year is different
if (lastRotate.Year != DateTime.Now.Year)
{
bDoRotate = true;
}
}
}
}
return bDoRotate;
}
/// <summary>
/// Compress a file using .Net
/// </summary>
/// <param name="m_filepath">the file to compress</param>
/// <param name="lrc">logrotateconf object</param>
private static void CompressRotatedFile(string m_filepath, logrotateconf lrc)
{
int chunkSize = 65536;
FileInfo fi = new FileInfo(m_filepath);
if (fi.Extension == "."+lrc.CompressExt)
{
return;
}
string compressed_file_path = m_filepath + "." + lrc.CompressExt;
Logging.Log(Strings.Compressing+" " + m_filepath, Logging.LogType.Verbose);
if (cla.Debug == false)
{
try
{
using (FileStream fs = new FileStream(m_filepath, FileMode.Open, FileAccess.Read, FileShare.Read))
{
using (System.IO.Compression.GZipStream zs = new System.IO.Compression.GZipStream(new FileStream(compressed_file_path, FileMode.Create), System.IO.Compression.CompressionMode.Compress))
{
byte[] buffer = new byte[chunkSize];
while (true)
{
int bytesRead = fs.Read(buffer, 0, chunkSize);
if (bytesRead == 0)
break;
zs.Write(buffer, 0, bytesRead);
}
}
}
DeleteRotateFile(m_filepath, lrc);
}
catch (Exception e)
{
Logging.Log("Error in CompressRotatedFile with file " + m_filepath, Logging.LogType.Error);
Logging.LogException(e);
return;
}
}
}
/// <summary>
/// Age out old rotated files, and rename rotated files as needed. Also support delaycompress option
/// </summary>
/// <param name="lrc">logrotateconf object</param>
/// <param name="fi">FileInfo object for the log file</param>
/// <param name="rotate_path">the folder rotated logs are located in</param>
private static void AgeOutRotatedFiles(logrotateconf lrc, FileInfo fi,string rotate_path)
{
DirectoryInfo di = new DirectoryInfo(rotate_path);
FileInfo[] fis = di.GetFiles(fi.Name + "*");
if (fis.Length == 0)
// nothing to do
return;
// look for any rotated log files, and rename them with the count if not using dateext
Regex pattern = new Regex("[0-9]");
// sort alphabetically reversed
Array.Sort<FileSystemInfo>(fis, delegate(FileSystemInfo a, FileSystemInfo b)
{
return ((new CaseInsensitiveComparer()).Compare(b.Name, a.Name));
});
// if original file is in this list, remove it
if (fis[fis.Length - 1].Name == fi.Name)
{
// this is the original file, remove from this list
Array.Resize<FileInfo>(ref fis, fis.Length - 1);
}
// go ahead and remove files that are too old by age
foreach (FileInfo m_fi in fis)
{
if (lrc.MaxAge != 0)
{
// any log files that are "old" need to be handled - either deleted or emailed
if (m_fi.LastWriteTime < DateTime.Now.Subtract(new TimeSpan(lrc.MaxAge, 0, 0, 0)))
{
Logging.Log(m_fi.FullName + " is too old - "+Strings.DeletingFile, Logging.LogType.Verbose);
RemoveOldRotateFile(fi.FullName, lrc, m_fi);
continue;
}
}
}
// iterate through array, determine if file needs to be removed or emailed
if (lrc.DateExt == true)
{
for (int rotation_counter = lrc.Rotate-1; rotation_counter < fis.Length; rotation_counter++)
{
// remove any entries that are past the rotation limit
RemoveOldRotateFile(fi.FullName, lrc, fis[rotation_counter]);
}
}
else
{
foreach (FileInfo m_fi in fis)
{
// if not aged out and we are not using dateext, then rename the file
// determine the rotation number of this file. Account if it is compressed
string[] exts = m_fi.Name.Split(new char[] { '.' });
// determine which (if any) of the extensions match the regex. w hen we find one we will use that as our rename reference
int i;
for (i = exts.Length - 1; i > 0; i--)
{
if (pattern.IsMatch(exts[i]))
{
break;
}
}
if (Convert.ToInt32(exts[i]) >= lrc.Rotate)
{
// too old!
RemoveOldRotateFile(fi.FullName, lrc, m_fi);
}
else
{
int newnum = Convert.ToInt32(exts[i]) + 1;
// build new filename
string newFile = "";
for (int j = 0; j < i; j++)
{
newFile = newFile + exts[j];
newFile += ".";
}
newFile += newnum.ToString();
for (int j = i + 1; j < exts.Length; j++)
{
newFile += ".";
newFile += exts[j];
}
Logging.Log(Strings.Renaming+" " + m_fi.FullName + Strings.To + rotate_path + newFile, Logging.LogType.Verbose);
if (cla.Debug == false)
{
// the there is already a file with the new name, then delete that file so we can rename this one
if (File.Exists(rotate_path + newFile))
{
DeleteRotateFile(rotate_path + newFile, lrc);
}
File.Move(m_fi.FullName, rotate_path + newFile);
// if we are set to compress, then check if the new file is compressed. this is done by looking at the first two bytes
// if they are set to 0x1f8b then it is already compressed. There is a possibility of a false positive, but this should
// be very unlikely since log files are text files and will not start with these bytes
if (lrc.Compress)
{
FileStream fs = File.Open(rotate_path + newFile, FileMode.Open);
byte[] magicnumber = new byte[2];
fs.Read(magicnumber, 0, 2);
fs.Close();
if ((magicnumber[0] != 0x1f) && (magicnumber[1] != 0x8b))
{
CompressRotatedFile(rotate_path + newFile, lrc);
}
}
}
}
}
}
}
/// <summary>
/// Sends a log file as an email attachment if email setttings are configured
/// </summary>
/// <param name="m_filepath">Path to the original log file</param>
/// <param name="lrc">LogRotationConf object</param>
/// <param name="m_file_attachment_path">Path to the log file to attach to the email</param>
private static void SendEmail(string m_filepath, logrotateconf lrc, string m_file_attachment_path)
{
if ((lrc.SMTPServer != "") && (lrc.SMTPPort != 0) && (lrc.MailLast) && (lrc.MailAddress != ""))
{
Logging.Log(Strings.SendingEmailTo+" " + lrc.MailAddress,Logging.LogType.Verbose);
Attachment a = new Attachment(m_file_attachment_path);
try
{
MailMessage mm = new MailMessage(lrc.MailFrom, lrc.MailAddress);
mm.Subject = "Log file rotated";
mm.Body = Strings.ProgramName + " has rotated the following log file: " + m_filepath + "\r\n\nThe rotated log file is attached.";
mm.Attachments.Add(a);
SmtpClient smtp = new SmtpClient(lrc.SMTPServer, lrc.SMTPPort);
if (lrc.SMTPUserName != "")
{
smtp.Credentials = new System.Net.NetworkCredential(lrc.SMTPUserName, lrc.SMTPUserPassword);
}
smtp.EnableSsl = lrc.SMTPUseSSL;
smtp.Send(mm);
}
catch (Exception e)
{
Logging.LogException(e);
return;
}
finally
{
a.Dispose();
}
}
}
private static void RotateFile(logrotateconf lrc, FileInfo fi)
{
Logging.Log(Strings.RotatingFile+" " + fi.FullName,Logging.LogType.Verbose);
// we don't actually rotate if debug is enabled
if (cla.Debug)
Logging.Log(Strings.RotateSimulated,Logging.LogType.Debug);
if ((lrc.PreRotate!=null)&&(lrc.SharedScripts==false))
PreRotate(lrc,fi.FullName);
// determine path to put the rotated log file
string rotate_path = GetRotatePath(lrc,fi);
// age out old logs
AgeOutRotatedFiles(lrc, fi,rotate_path);
// determine name of rotated log file
string rotate_name = GetRotateName(lrc,fi);
bool bLogFileExists = fi.Exists;
// now either rename or copy (depends on copy setting)
if ((lrc.Copy)||(lrc.CopyTruncate))
{
Logging.Log(Strings.Copying+" " + fi.FullName + Strings.To + rotate_path + rotate_name, Logging.LogType.Verbose);
if (cla.Debug == false)
{
try
{
if (bLogFileExists)
File.Copy(fi.FullName, rotate_path + rotate_name, false);
}
catch (Exception e)
{
Logging.Log("Error copying file " + fi.FullName + " to " + rotate_path + rotate_name, Logging.LogType.Error);
Logging.LogException(e);
return;
}
if (bLogFileExists)
{
File.SetCreationTime(rotate_path + rotate_name, DateTime.Now);
File.SetLastAccessTime(rotate_path + rotate_name, DateTime.Now);
File.SetLastWriteTime(rotate_path + rotate_name, DateTime.Now);
}
}
if (lrc.CopyTruncate)
{
Logging.Log(Strings.TruncateLogFile,Logging.LogType.Verbose);
if (cla.Debug == false)
{
try
{
if (bLogFileExists)
{
FileStream fs = new FileStream(fi.FullName, FileMode.Open);
fs.SetLength(0);
fs.Close();
}
}
catch (Exception e)
{
Logging.Log("Error truncating file " + fi.FullName, Logging.LogType.Error);
Logging.LogException(e);
return;
}
}
}
}
else
{
Logging.Log(Strings.Renaming+" " + fi.FullName + Strings.To + rotate_path + rotate_name,Logging.LogType.Verbose);
if (cla.Debug == false)
{
try
{
if (bLogFileExists)
File.Move(fi.FullName, rotate_path + rotate_name);
}
catch (Exception e)
{
Logging.Log("Error renaming file " + fi.FullName + " to " + rotate_path + rotate_name, Logging.LogType.Error);
Logging.LogException(e);
return;
}
}
if (lrc.Create)
{
Logging.Log(Strings.CreateNewEmptyLogFile,Logging.LogType.Verbose);
if (cla.Debug == false)
{
try
{
FileStream fs = new FileStream(fi.FullName, FileMode.CreateNew);
fs.SetLength(0);
fs.Close();
}
catch (Exception e)
{
Logging.Log("Error creating new file " + fi.FullName, Logging.LogType.Error);
Logging.LogException(e);
return;
}
}
}
}
// now, compress the rotated log file if we are set to
if (lrc.Compress)
{
if (lrc.DelayCompress == false)
{
CompressRotatedFile(rotate_path + rotate_name, lrc);
rotate_name += lrc.CompressExt;
}
}
if (lrc.MailLast==false)
SendEmail(fi.FullName,lrc, rotate_path + rotate_name);
// rotation done, update status file
if (cla.Debug == false)
{
Logging.Log(Strings.UpdateStatus, Logging.LogType.Verbose);
Status.SetRotationDate(fi.FullName);
}
if ((lrc.PostRotate != null) && (lrc.SharedScripts == false))
PostRotate(lrc,fi.FullName);
}
private static void RemoveOldRotateFile(string logfilepath,logrotateconf lrc,FileInfo m_fi)
{
if ((lrc.MailAddress != "") && (lrc.MailLast))
{
// attempt to mail this file
SendEmail(logfilepath, lrc, m_fi.FullName);
}
DeleteRotateFile(m_fi.FullName, lrc);
}
/// <summary>
/// Execute any lastaction commands. The commands are written to a temporary script file, and then this script file is executed with c:\windows\cmd.
/// </summary>
/// <param name="lrc">logrotateconf object</param>
/// <param name="path_to_logfile">The path to the logfile, which is passed as a paramenter to the script</param>
/// <returns>True if script is executed with no errors, False is there was an error</returns>
private static bool ProcessLastAction(logrotateconf lrc)
{
if (lrc.LastAction == null)
throw new ArgumentNullException("lrc.LastAction");
return CreateScriptandExecute(lrc.LastAction, "");
}