#!/usr/bin/perl
#
# Filter to convert dircproxy log files, so they use [HH:mm]
# instead of @<seconds since epoch> for timestamps. A filter, from
# stdin to stdout
#
# Copyright (C) Andrew Francis, 2003.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer in the
#    documentation and/or other materials provided with the distribution.
# 3. Neither the name of the author nor the names of any co-contributors
#    may be used to endorse or promote products derived from this software
#    without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY Andrew Francis AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED.  IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
# THE POSSIBILITY OF SUCH DAMAGE.
#

sub dumpDate {
	my ($hour, $min, $weekday, $y, $m, $d) = @_;

	printf("[%02d:%02d] DATE: %s %s %02d\n",
			$hour, $min,
			(Sun,Mon,Tue,Wed,Thu,Fri,Sat)[$weekday],
			('Jan','Feb','Mar','Apr','May','Jun','Jul','Aug','Sep',
			 'Oct','Nov','Dec')[$m],
			$d);
}

my $lastdate = -1;

while(<>) {
	if( /@([0-9]+)(.*)$/ ) {
		my ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$isdst) =
			localtime($1);
		my $content = $2;

		if($lastdate != $mday) {
			$lastdate = $mday;
			dumpDate($hour, $min, $wday, $year, $mon, $mday);
		}
		
#printf("[%04d/%02d/%02d %02d:%02d:%02d]%s\n",
#				$year+1900, $mon+1, $mday, $hour, $min, $sec, $content);
		printf("[%02d:%02d]%s\n", $hour, $min, $content);
		
#print "[$year/$mon/$day $hour:$min:$sec]$content\n";
	} else {
		print $_;
	}
}