76 lines
1.7 KiB
Perl
76 lines
1.7 KiB
Perl
#!perl
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use RevBank::Products qw(read_products);
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use FindBin qw($Bin);
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my $fn = "revbank.oepl";
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my $hex = '[0-9A-F]';
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my $mac_regex = qr/^(?:$hex {12}|$hex {14}|$hex {16})$/x;
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sub _create() {
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open my $fh, '>>', $fn;
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}
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sub _run(@args) {
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system perl => "$Bin/contrib/openepaperlink.pl", @args;
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}
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sub command :Tab(openepaperlink) ($self, $cart, $command, @) {
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if ($command =~ $mac_regex) {
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my %mac2product = map { (split " ")[0, 1] } slurp $fn;
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return REDO, $mac2product{$command} if exists $mac2product{$command};
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}
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$command eq 'openepaperlink' or return NEXT;
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return "Product ID (or 'unlink')", sub ($self, $cart, $product_id, @) {
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my $product;
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if ($product_id ne 'unlink') {
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$product = read_products->{$product_id} or return REJECT, "No such product.";
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$product_id = $product->{id}; # don't use alias
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}
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return "Tag MAC", sub ($self, $cart, $mac, @) {
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$mac =~ $mac_regex or return REJECT, "Malformed MAC.";
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_create;
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my $found = 0;
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rewrite $fn, sub($line) {
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my ($m) = split " ", $line;
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return $line if $m ne $mac;
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$found++;
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return undef if $product_id eq 'unlink';
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return "$mac $product_id\n" if $m eq $mac;
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};
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if (!$found and $product_id ne 'unlink') {
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append $fn, "$mac $product_id\n";
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}
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_run($mac);
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return ACCEPT;
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};
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};
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}
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sub hook_product_deleted($class, $product, $mtime, @) {
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my $product_id = $product->{id};
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-f $fn or return;
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my @macs;
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rewrite $fn, sub($line) {
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my ($mac, $id, $hwtype) = split " ", $line;
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if ($id eq $product_id) {
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push @macs, $mac;
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return "$mac _DELETED_ $hwtype\n"
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}
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return $line;
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};
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_run(@macs);
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}
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sub hook_product_changed($class, $old, $new, $mtime, @) {
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_run($new->{id});
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}
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