Email::Folder::Maildir - reads raw RFC822 mails from a maildir

package Email::Folder::Maildir;
use strict;
use Carp;
use IO::File;
use Email::Folder::Reader;
use base 'Email::Folder::Reader';

sub _what_is_there {
    my $self = shift;
    my $dir = $self->{_file};

    croak "$dir does not exist"    unless (-e $dir);
    croak "$dir is not a maildir"  unless (-d $dir);
    croak "$dir is not a maildir"  unless (-e "$dir/cur" && -d "$dir/cur");
    croak "$dir is not a maildir"  unless (-e "$dir/new" && -d "$dir/new");

    my @messages;
    # ignore the tmp directory although the spec
    # says to delete anything in tmp/ that is older than 36 hours
    for my $sub (qw(new cur)) {
        opendir(DIR,"$dir/$sub") or croak "Could not open '$dir/$sub'";
        foreach my $file (readdir DIR) {
            next if $file =~ /^\./; # as suggested by DJB
            push @messages, "$dir/$sub/$file";
        }
    }

    $self->{_messages} = \@messages;
}

sub next_message {
    my $self = shift;
    my $what = $self->{_messages} || $self->_what_is_there;

    my $file = shift @$what or return;
    local *FILE;
    open FILE, $file or croak "couldn't open '$file' for reading";
    join '', <FILE>;
}

1;

__END__