delete hook (#1032)

* make log_message optional in delete_device

* add hooks support to delete job

* make delete job high prio

* web delete now queues job instead of inline delete

* move web logging into web package and remove userlog from device delete helper

* submit delete job for expire device instead of inline delete

* fixes to get web submit form for delete device to work

* enable delete hook functionality

lib/App/Netdisco/Worker/Plugin/Delete/Hooks.pm

@@ -0,0 +1,31 @@
+package App::Netdisco::Worker::Plugin::Delete::Hooks;
+
+use Dancer ':syntax';
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+use App::Netdisco::Util::Worker;
+use App::Netdisco::Util::Permission qw/check_acl_no check_acl_only/;
+
+register_worker({ phase => 'late' }, sub {
+  my ($job, $workerconf) = @_;
+  my $count = 0;
+
+  foreach my $conf (@{ setting('hooks') }) {
+    my $no   = ($conf->{'filter'}->{'no'}   || []);
+    my $only = ($conf->{'filter'}->{'only'} || []);
+
+    next if check_acl_no( $job->device, $no );
+    next unless check_acl_only( $job->device, $only);
+
+    if ($conf->{'event'} eq 'delete') {
+      $count += queue_hook('delete', $conf);
+      debug sprintf ' [%s] hooks - %s queued', 'delete', $job->device;
+    }
+  }
+
+  return Status
+    ->info(sprintf ' [%s] hooks - %d queued', $job->device, $count);
+});
+
+true;