Generate a link if the reference is a URL

app/Helper/TaskHelper.php

@@ -220,6 +220,21 @@ class TaskHelper extends Base
         return $html;
     }
 
+    public function renderReference(array $task)
+    {
+        if (! empty($task['reference'])) {
+            $reference = $this->helper->text->e($task['reference']);
+
+            if (filter_var($task['reference'], FILTER_VALIDATE_URL) !== false) {
+                return sprintf('<a href="%s" target=_blank">%s</a>', $reference, $reference);
+            }
+
+            return $reference;
+        }
+
+        return '';
+    }
+
     public function getProgress($task)
     {
         if (! isset($this->columns[$task['project_id']])) {

app/Template/board/task_footer.php

@@ -32,7 +32,7 @@
     <div class="task-board-icons-row">
         <?php if ($task['reference']): ?>
             <span class="task-board-reference" title="<?= t('Reference') ?>">
-                <?= $this->text->e($task['reference']) ?>
+                <?= $this->task->renderReference($task) ?>
             </span>
         <?php endif ?>
     </div>

app/Template/task/details.php

@@ -22,7 +22,7 @@
                     </li>
                     <?php if (! empty($task['reference'])): ?>
                         <li>
-                            <strong><?= t('Reference:') ?></strong> <span><?= $this->text->e($task['reference']) ?></span>
+                            <strong><?= t('Reference:') ?></strong> <span><?= $this->task->renderReference($task) ?></span>
                         </li>
                     <?php endif ?>
                     <?php if (! empty($task['score'])): ?>

app/Template/task_list/task_icons.php

@@ -1,7 +1,7 @@
 <div class="task-list-icons">
     <?php if ($task['reference']): ?>
         <span class="task-board-reference" title="<?= t('Reference') ?>">
-            <?= $this->text->e($task['reference']) ?>
+            <?= $this->task->renderReference($task) ?>
         </span>
     <?php endif ?>
     <?php if ($task['is_milestone'] == 1): ?>