Add external links for tasks with plugin api

app/ExternalLink/WebLink.php

@@ -0,0 +1,37 @@
+<?php
+
+namespace Kanboard\ExternalLink;
+
+use Kanboard\Core\ExternalLink\ExternalLinkInterface;
+
+/**
+ * Web Link
+ *
+ * @package  externalLink
+ * @author   Frederic Guillot
+ */
+class WebLink extends BaseLink implements ExternalLinkInterface
+{
+    /**
+     * Get link title
+     *
+     * @access public
+     * @return string
+     */
+    public function getTitle()
+    {
+        $html = $this->httpClient->get($this->url);
+
+        if (preg_match('/<title>(.*)<\/title>/siU', $html, $matches)) {
+            return trim($matches[1]);
+        }
+
+        $components = parse_url($this->url);
+
+        if (! empty($components['host']) && ! empty($components['path'])) {
+            return $components['host'].$components['path'];
+        }
+
+        return t('Title not found');
+    }
+}