public Rotater( string[] args )
{
this._argsParser = null;
this._globalConfig = new LogrotateConf();
this._filePathConfigSection = new Dictionary<string, LogrotateConf>();
this._status = null;
this.Init( args );
}
/// <summary>
/// Execute any firstaction 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>
bool ProcessFirstAction( LogrotateConf lrc )
{
if ( lrc.FirstAction == null )
{
throw new ArgumentNullException( "lrc.FirstAction" );
}
return this.CreateScriptAndExecute( lrc.FirstAction, "" );
}
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();
this._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, this._argsParser.Debug );
}
}
void ProcessConfigFile( string m_path_to_file )
{
Logging.Log( Strings.ParseConfigFile + " " + m_path_to_file, Logging.LogType.Verbose );
bool bSawASection = false;
using ( StreamReader sr = new StreamReader( m_path_to_file ) )
{
// 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( this._globalConfig );
this.ProcessConfileFileSection( line, sr, lrc );
}
else
{
if ( bSawASection == false )
{
this._globalConfig.Parse( line, this._argsParser.Debug );
}
else
{
Logging.Log( Strings.GlobalOptionsAboveSections, Logging.LogType.Error );
}
}
}
}
}
/// <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>
bool PreRotate( LogrotateConf lrc, string path_to_logfile )
{
if ( lrc.PreRotate == null )
{
throw new ArgumentNullException( "lrc.PreRotate" );
}
return this.CreateScriptAndExecute( lrc.PreRotate, path_to_logfile );
}
/// <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>
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>
/// 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>
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( "%H", DateTime.Now.Hour.ToString( "D2" ) );
time_str = time_str.Replace( "%M", DateTime.Now.Minute.ToString( "D2" ) );
time_str = time_str.Replace( "%S", DateTime.Now.Second.ToString( "D2" ) );
time_str = time_str.Replace( "%s",
( 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;
}
string GetRotateLogDirectory( string logfilepath, LogrotateConf lrc )
{
if ( lrc.OldDir != "" )
{
return lrc.OldDir;
}
return Path.GetDirectoryName( logfilepath );
}
/// <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>
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 ( _argsParser.Debug == false )
{
ShredFile sf = new ShredFile( m_filepath );
sf.ShredIt( lrc.ShredCycles, _argsParser.Debug );
}
}
else
{
Logging.Log( Strings.DeletingFile + " " + m_filepath, Logging.LogType.Verbose );
if ( _argsParser.Debug == false )
{
File.Delete( m_filepath );
}
}
}
/// <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>
bool CheckForRotate( string logfilepath, LogrotateConf lrc )
{
if ( this._argsParser.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.NotIfEmpty || !lrc.IfEmpty )
{
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 = this._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>
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 ( this._argsParser.Debug == false )
{
try
{
using ( FileStream fs = new FileStream( m_filepath, FileMode.Open, FileAccess.Read, FileShare.Read )
)
{
using (
GZipStream zs = new GZipStream( new FileStream( compressed_file_path, FileMode.Create ),
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 );
}
}
}
this.DeleteRotateFile( m_filepath, lrc );
}
catch ( Exception e )
{
Logging.Log( "Error in CompressRotatedFile with file " + m_filepath, Logging.LogType.Error );
Logging.LogException( e );
}
}
}
/// <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>
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( 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( 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 );
}
}
}
// iterate through array, determine if file needs to be removed or emailed
if ( lrc.DateExt )
{
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( '.' );
// 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 ( _argsParser.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>
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 NetworkCredential( lrc.SMTPUserName, lrc.SMTPUserPassword );
}
smtp.EnableSsl = lrc.SMTPUseSSL;
smtp.Send( mm );
}
catch ( Exception e )
{
Logging.LogException( e );
}
finally
{
a.Dispose();
}
}
}
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 ( this._argsParser.Debug )
{
Logging.Log( Strings.RotateSimulated, Logging.LogType.Debug );
}
if ( ( lrc.PreRotate != null ) && ( lrc.SharedScripts == false ) )
{
this.PreRotate( lrc, fi.FullName );
}
// determine path to put the rotated log file
string rotate_path = this.GetRotatePath( lrc, fi );
// age out old logs
this.AgeOutRotatedFiles( lrc, fi, rotate_path );
// determine name of rotated log file
string rotate_name = this.GetRotateName( lrc, fi );
bool bLogFileExists = fi.Exists;
// now either rename or copy (depends on copy setting)
if ( ( lrc.Copy ) || ( lrc.CopyTruncate ) )
{
Logging.Log( string.Format( "{0} {1}{2}{3}{4}",
Strings.Copying, fi.FullName, Strings.To, rotate_path, rotate_name ),
Logging.LogType.Verbose );
Logging.Log( "inside if", Logging.LogType.Required );
if ( this._argsParser.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 )
{
DateTime now = DateTime.Now;
File.SetCreationTime( rotate_path + rotate_name, now );
File.SetLastAccessTime( rotate_path + rotate_name, now );
File.SetLastWriteTime( rotate_path + rotate_name, now );
}
}
if ( lrc.CopyTruncate )
{
Logging.Log( Strings.TruncateLogFile, Logging.LogType.Verbose );
if ( this._argsParser.Debug == false )
{
try
{
if ( bLogFileExists )
{
using (
FileStream fs = new FileStream( fi.FullName, FileMode.Open, FileAccess.Write,
FileShare.ReadWrite ) )
{
if ( fs.Length > 0 )
{
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 );
Logging.Log( "inside else", Logging.LogType.Required );
if ( this._argsParser.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 ( this._argsParser.Debug == false )
{
try
{
using ( 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 )
{
this.CompressRotatedFile( rotate_path + rotate_name, lrc );
rotate_name += lrc.CompressExt;
}
}
if ( lrc.MailLast == false )
{
this.SendEmail( fi.FullName, lrc, rotate_path + rotate_name );
}
// rotation done, update status file
if ( this._argsParser.Debug == false )
{
Logging.Log( Strings.UpdateStatus, Logging.LogType.Verbose );
this._status.SetRotationDate( fi.FullName );
}
if ( ( lrc.PostRotate != null ) && ( lrc.SharedScripts == false ) )
{
this.PostRotate( lrc, fi.FullName );
}
}
void RemoveOldRotateFile( string logfilepath, LogrotateConf lrc, FileInfo m_fi )
{
if ( ( lrc.MailAddress != "" ) && ( lrc.MailLast ) )
{
// attempt to mail this file
this.SendEmail( logfilepath, lrc, m_fi.FullName );
}
this.DeleteRotateFile( m_fi.FullName, lrc );
}
/// <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 )
{
this.bcompress = m_source.bcompress;
//scompresscmd = m_source.scompresscmd;
//suncompressedcmd = m_source.suncompressedcmd;
this.scompressext = m_source.scompressext;
//scompressoptions = m_source.scompressoptions;
this.bcopy = m_source.bcopy;
this.bcopytruncate = m_source.bcopytruncate;
this.bcreate = m_source.bcreate;
this.bdaily = m_source.bdaily;
this.bdateext = m_source.bdateext;
this.sdateformat = m_source.sdateformat;
this.bdelaycompress = m_source.bdelaycompress;
this.bifempty = m_source.bifempty;
this.smail = m_source.smail;
this.iminsize = m_source.iminsize;
this.imaxage = m_source.imaxage;
this.bmissingok = m_source.bmissingok;
this.bmonthly = m_source.bmonthly;
this.solddir = m_source.solddir;
this.spostrotate = m_source.spostrotate;
this.sprerotate = m_source.sprerotate;
this.sfirstaction = m_source.sfirstaction;
this.slastaction = m_source.slastaction;
this.irotate = m_source.irotate;
this.lsize = m_source.lsize;
this.bsharedscripts = m_source.bsharedscripts;
this.istart = m_source.istart;
this.stabooext = m_source.stabooext;
this.bweekly = m_source.bweekly;
this.byearly = m_source.byearly;
this.bshred = m_source.bshred;
this.ishredcycles = m_source.ishredcycles;
this.bmaillast = m_source.bmaillast;
this.ssmtpserver = m_source.ssmtpserver;
this.ismtpport = m_source.ismtpport;
this.bsmtpssl = m_source.bsmtpssl;
this.ssmtpuser = m_source.ssmtpuser;
this.ssmtpuserpwd = m_source.ssmtpuserpwd;
this.sinclude = m_source.sinclude;
this.stabooext = m_source.stabooext;
this.ssmtpfrom = m_source.ssmtpfrom;
}