#!/usr/bin/perl
# logcolorize.pl 1.0.8 - A PERL script to colorize log viewing
#
# Copyright: (C) 1999, Michael T. Babcock
#                      <mikebabcock@pobox.com>
#                      http://www.linuxsupportline.com/~pgp/linux/
#
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
#
#   For revisional changes, see ChangeLog file
#
######################################################################
$black    = "\033[30m";
$red      = "\033[31m";
$green    = "\033[32m";
$yellow   = "\033[33m";
$blue     = "\033[34m";
$magenta  = "\033[35m";
$purple   = "\033[35m";
$cyan     = "\033[36m";
$white    = "\033[37m";
$darkgray = "\033[30m";

# Define global terms:
# Define good notables:
@word_good=("starting\n", "Freeing", "Detected", "starting.", "accepted.\n", "authenticated.\n", "Ready", "active", "reloading", "saved;", "restarting", "ONLINE\n");
@word_warn=("dangling", "closed.\n", "Assuming", "root", "root\n", "exiting\n", "missing", "Ignored", "adminalert:", "deleting", "OFFLINE\n");
@word_bad=("bad");
@word_note=("LOGIN", "DHCP_OFFER", "optimized", "reset:", "unloaded", "disconnected", "connect", "Successful", "registered\n");
@line_good=("up", "DHCP_ACK", "Cleaned", "Initializing", "Starting", "success", "successfully", "alive", "found", "ONLINE\n");
@line_warn=("warning:", "WARNING:", "invalid", "obsolete", "bad", "Password", "detected", "timeout", "timeout:", "attackalert:", "wrong", "Lame", "FAILED", "failing", "unknown", "obsolete", "stopped.\n", "terminating.", "disabled\n", "disabled", "Lost");
@line_bad=("DENY", "lost", "shutting", "dead", "DHCP_NAK", "failure;", "Unable", "inactive", "terminating", "refused", "rejected", "down", "OFFLINE\n", "error\n", "ERROR\n", "ERROR:", "error", "ERROR", "error:", "failed:");

# Define specifics:
@daemons=("named");

# Now define what we want to use when:
$col_good = $green;
$col_warn = $yellow;
$col_bad = $red;
$col_note = $purple;

$col_norm =		"\033[00m";
$col_background =	"\033[07m";
$col_brighten = 	"\033[01m";
$col_underline = 	"\033[04m";
$col_blink = 		"\033[05m";

# Resets to normal colours and moves to the left one column ... 
$col_default = "$col_norm$white";
print "\n$col_norm$cyan";
print "logcolorize.pl 1.0.8 by$col_brighten$cyan Michael T. Babcock$col_norm$cyan <$col_brighten$green";
print "mikebabcock\@pobox.com$col_norm$cyan";
print ">\n";

$datespace=0;

mainloop: while (<>)
{
	$thisline = $_;

	$timestamp = substr($_,0,15);
	s/................//;

	@rec = split (/ /, $_);

	$output="$col_brighten$cyan$timestamp";	# date & time
	$output.=" $col_brighten$blue$rec[0]";	# hostname
	if ($rec[1] eq "last")
	{
		$output.="$col_norm$green last message repeated ";
		$output.="$col_brighten$rec[4]$col_norm$green times\n";
		print "$output$col_default";
		next mainloop;
	}
	# Extract PID if present
	if ($rec[1] =~ /\[(\d+)\]\:/)
	{
		my($pid) = $1;
		$rec[1]=~s/\[$1\]\:// ;
		$output .= "$col_norm$green $rec[1]" .
		           "$col_brighten$green\[";
		$output .= "$col_brighten$white$pid" .
		           "$col_brighten$green\]: ";
	}
	else {
		$output .= "$col_norm$green $rec[1] ";
	}

	$restcolor="$col_norm$cyan";
	$restoftheline="";
	for ($therest=(2); $therest<=$#rec; $therest++)
	{	$highlight=0;

		# Check for keywords to highlight

		for ($i=0; $i<=$#word_good; $i++)
		{	if ($word_good[$i] eq $rec[$therest])
			{ $restoftheline.="$col_brighten$col_good"; $highlight=1; }
		}
		for ($i=0; $i<=$#word_warn; $i++)
		{	if ($word_warn[$i] eq $rec[$therest])
			{ $restoftheline.="$col_brighten$col_warn"; $highlight=1; } 
		}
		for ($i=0; $i<=$#word_bad; $i++)
		{	if ($word_bad[$i] eq $rec[$therest])
			{ $restoftheline.="$col_brighten$col_bad"; $highlight=1; } 
		}
		for ($i=0; $i<=$#word_note; $i++) 
		{	if ($word_note[$i] eq $rec[$therest])
			{ $restoftheline.="$col_brighten$col_note"; $highlight=1; } 
		}

		# Watch for words that indicate entire lines should be highlighted

		for ($i=0; $i<=$#line_good; $i++)
		{	if ($line_good[$i] eq $rec[$therest])
			{ $restcolor="$col_norm$col_good";
			  $restoftheline.="$col_brighten$col_good"; $highlight=1; }
		}
		for ($i=0; $i<=$#line_warn; $i++)
		{	if ($line_warn[$i] eq $rec[$therest])
			{ $restcolor="$col_norm$col_warn";
			  $restoftheline.="$col_brighten$col_warn"; $highlight=1; }
		}
		for ($i=0; $i<=$#line_bad; $i++)
		{	if ($line_bad[$i] eq $rec[$therest])
			{ $restcolor="$col_norm$col_bad";
			  $restoftheline.="$col_brighten$col_bad"; $highlight=1; }
		}

		$restoftheline.="$rec[$therest] ";
		if ($highlight == 1)
		{ $restoftheline.=$restcolor; }
	}
	$output.="$restcolor$restoftheline";
	print "$output$col_default\033[1G";
}

exit(0);