(legacy) regression, fix alias check in firewall_nat_1to1.php

src/www/firewall_nat_1to1.php

@@ -259,19 +259,19 @@ $main_buttons = array(
 										</td>
 										<td>
 											<?=isset($natent['external']) ? $natent['external'] : "";?><?=isset($natent['source']) ? strstr(pprint_address($natent['source']), '/') : "";?>
-<?php 								if (is_alias(pprint_address($natent['external']))): ?>
+<?php 								if (isset($natent['external']['address']) && is_alias($natent['external']['address'])): ?>
 											&nbsp;<a href="/firewall_aliases_edit.php?name=<?=htmlspecialchars(pprint_address($natent['external']));?>"><i class="fa fa-list"></i> </a>
 <?php 								endif; ?>
 										</td>
 										<td>
 											<?=pprint_address($natent['source']);?>
-<?php 								if (is_alias(pprint_address($natent['source']))): ?>
+<?php 								if (isset($natent['source']['address']) && is_alias($natent['source']['address'])): ?>
 											&nbsp;<a href="/firewall_aliases_edit.php?name=<?=htmlspecialchars(pprint_address($natent['source']));?>"><i class="fa fa-list"></i> </a>
 <?php 								endif; ?>
 										</td>
 										<td>
 											<?=pprint_address($natent['destination']);?>
-<?php 								if (is_alias(pprint_address($natent['destination']))): ?>
+<?php 								if (isset($natent['destination']['address']) && is_alias($natent['destination']['address'])): ?>
 											&nbsp;<a href="/firewall_aliases_edit.php?name=<?=htmlspecialchars(pprint_address($natent['destination']));?>"><i class="fa fa-list"></i> </a>
 <?php 								endif; ?>
 										</td>