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#!/usr/bin/perl
# $Id: probe-mirmon,v 1.4 2009/08/19 23:15:46 karl Exp $
# public domain. Originally written by Karl Berry, 2009.
#
# Probe rsync url's for mirmon; use wget for anything else.
# From description at http://people.cs.uu.nl/henkp/mirmon.
#
# Also requires a patch to mirmon itself to accept rsync urls
# (and I wanted https too):
# --- /usr/local/share/mirmon/ORIG/mirmon 2007-08-18 18:05:47.000000000 +0200
# +++ /usr/local/share/mirmon/mirmon 2009-07-03 22:38:00.000000000 +0200
# @@ -386,3 +386,3 @@
# my ( $type, $site, $home ) ;
# - if ( $url =~ m!^(ftp|http)://([^/:]+)(:\d+)?/! )
# + if ( $url =~ m!^(ftp|https?|rsync)://([^/:]+)(:\d+)?/! )
# { $type = $1 ; $site = $2 ; $home = $& ; }
main(@ARGV);
use strict;
use warnings;
use Date::Parse (); # dev-perl/TimeDate
use File::Tempdir; # dev-perl/File-Tempdir
sub main {
my ( $timeout, $url ) = @_;
if ( $url =~ m,^rsync://, ) {
handle_rsync( $timeout, $url );
}
else {
handle_wget( $timeout, $url );
}
}
sub handle_wget {
my ( $timeout, $url ) = @_;
# TODO: replace this with native HTTP
# TODO: munge the output!
exec {'/usr/bin/wget'} 'wget', qw( -q --passive-ftp -O - -T ), $timeout, '-t', 1, $url;
}
sub handle_rsync {
my ( $timeout, $url ) = @_;
my $tmpdir = File::Tempdir->new();
my $dir = $tmpdir->name;
my $file = $url;
$file =~ s/\W/_/g; # translate all non-letters to _
if ( my $fail = system '/usr/bin/rsync', qw( -q --no-motd --timeout ), $timeout, $url, "$dir/$file" ) {
#warn "rsync failed, exit code $fail, $! $? $@\n";
exit $fail;
}
open my $fh, '<', "$dir/$file" or do {
warn "Opening Downloaded timestamp Failed";
exit 900; # rediculous exit code.
};
print munge_date(<$fh>);
exit 0;
}
sub munge_date {
no warnings 'numeric'; ## no critic (TestingAndDebugging::ProhibitNoWarnings)
my $timestr = shift;
my $timestamp = int($timestr);
my $year2020 = 1577836800;
my $year2038 = 2145916800;
# If the string starts with an epoch, just use that
if($timestamp >= $year2020 && $timestamp <= $year2038) {
return $timestamp;
} else {
return Date::Parse::str2time($timestr);
}
}
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