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- #!/usr/bin/perl -wT
- # Accept popularity-contest entries on stdin and drop them into a
- # subdirectory with a name based on their MD5 ID.
- #
- # Only the most recent entry with a given MD5 ID is kept.
- #
-
- $dirname = 'popcon-entries';
- $now = time;
- $state='initial'; # one of ('initial','accept','reject')
-
- my($file,$mtime);
- while(<>)
- {
- $state eq 'initial' and do
- {
- /^POPULARITY-CONTEST-0/ or next;
- my @line=split(/ +/);
- my %field;
- for (@line)
- {
- my ($key, $value) = split(':', $_, 2);
- $field{$key}=$value;
- };
- $id=$field{'ID'};
- if (!defined($id) || $id !~ /^([a-f0-9]{32})$/)
- {
- print STDERR "Bad hostid: $id\n";
- $state='reject'; next;
- }
- $id=$1; #untaint $id
- $mtime=$field{'TIME'};
- if (!defined($mtime) || $mtime!~/^([0-9]+)$/)
- {
- print STDERR "Bad mtime $mtime\n";
- $state='reject'; next;
- }
- $mtime=int $1; #untaint $mtime;
- $mtime=$now if ($mtime > $now);
- my $dir=substr($id,0,2);
- $file="$dirname/$dir/$id";
- open REPORT, ">",$file or do {$state='reject';next;};
- print REPORT $_;
- $state='accept'; next;
- };
- $state eq 'reject' and do
- {
- /^From/ or next;
- $state='initial';next;
- };
- $state eq 'accept' and do
- {
- /^From/ and do
- {
- close REPORT;
- unlink $file;
- print STDERR "Bad report $file";
- $state='initial';
- next;
- };
- print REPORT $_; #accept line.
- /^END-POPULARITY-CONTEST-0/ and do
- {
- close REPORT;
- utime $mtime, $mtime, $file;
- $state='initial';
- next;
- };
- };
- }
- if ($state eq 'accept')
- {
- close REPORT;
- unlink $file; #Reject
- print STDERR "Bad report $file";
- }
-