fix: remove unsafe link generation

src/fellchensammlung/models.py

@@ -445,13 +445,6 @@ class AdoptionNotice(models.Model):
         distance = geo.calculate_distance_between_coordinates(self.position, position)
         return distance < max_distance
 
-    @property
-    def link_to_more_information(self):
-        from urllib.parse import urlparse
-
-        domain = urlparse(self.further_information).netloc
-        return f"<a href='{self.further_information}'>{domain}</a>"
-
     @property
     def is_active(self):
         if not hasattr(self, 'adoptionnoticestatus'):

src/fellchensammlung/templates/fellchensammlung/partials/partial-check-adoption-notice.html

@@ -9,7 +9,11 @@
     <div class="card-content">
         <i>{% translate 'Zuletzt geprüft:' %} {{ adoption_notice.last_checked_hr }}</i>
         {% if adoption_notice.further_information %}
-            <p>{% translate "Externe Quelle" %}: {{ adoption_notice.link_to_more_information | safe }}</p>
+            <p>{% translate "Externe Quelle" %}:
+                <a href="{{ adoption_notice.further_information }}" target="_blank">
+                    {{ adoption_notice.further_information | domain}}
+                </a>
+            </p>
         {% endif %}
         <div class="card-footer">
             <div class="card-footer-item">