add token schema and validation

lib/App/Netdisco/Worker/Plugin/SetUserToken.pm

@@ -0,0 +1,32 @@
+package App::Netdisco::Worker::Plugin::SetUserToken;
+
+use Dancer ':syntax';
+use Dancer::Plugin::DBIC 'schema';
+
+use App::Netdisco::Worker::Plugin;
+use aliased 'App::Netdisco::Worker::Status';
+
+register_worker({ phase => 'check' }, sub {
+  return Status->error('Missing user (-e).')
+    unless shift->extra;
+  return Status->done('SetUserToken is able to run');
+});
+
+register_worker({ phase => 'main' }, sub {
+  my ($job, $workerconf) = @_;
+  my $username = $job->extra;
+
+  my $user = schema('netdisco')->resultset('User')
+    ->find({ username => $username });
+
+  return Status->error("No such user")
+    unless $user and $user->in_storage;
+
+  $user->update({ token_from => time, token => \'md5(random()::text)' })
+    ->discard_changes();
+
+  return Status->done(
+    sprintf 'Set token for user %s: %s', $username, $user->token);
+});
+
+true;