Allow the use of local copies of cdn files

ram/portal/admin.py

@@ -26,6 +26,7 @@ class SiteConfigurationAdmin(SingletonModelAdmin):
                 "classes": ("collapse",),
                 "fields": (
                     "show_version",
+                    "use_cdn",
                     "extra_head",
                 ),
             },

ram/portal/migrations/0015_siteconfiguration_use_cdn.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.1.5 on 2023-01-03 15:01
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("portal", "0014_siteconfiguration_extra_head"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="siteconfiguration",
+            name="use_cdn",
+            field=models.BooleanField(default=True),
+        ),
+    ]

ram/portal/models.py

@@ -35,6 +35,7 @@ class SiteConfiguration(SingletonModel):
     footer = RichTextField(blank=True)
     footer_extended = RichTextField(blank=True)
     show_version = models.BooleanField(default=True)
+    use_cdn = models.BooleanField(default=True)
     extra_head = models.TextField(blank=True)
 
     class Meta:

ram/portal/templates/base.html

@@ -13,9 +13,14 @@
     <meta name="author" content="{{ site_conf.site_author }}">
     <meta name="generator" content="Django Framework">
     <title>{% block title %}{{ title }}{% endblock %} - {{ site_conf.site_name }}</title>
+    {% if site_conf.use_cdn %}
     <link href="https://cdn.jsdelivr.net/npm/bootstrap-dark-5@1.1.3/dist/css/bootstrap-nightshade.min.css" rel="stylesheet">
-    <link href="{% static "css/main.css" %}" rel="stylesheet">
     <link href="https://stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css" rel="stylesheet">
+    {% else %}
+    <link href="{% static "bootstrap-dark-5@1.1.3/dist/css/bootstrap-nightshade.min.css" %}" rel="stylesheet">
+    <link href="{% static "font-awesome/4.7.0/css/font-awesome.min.css" %}" rel="stylesheet">
+    {% endif %}
+    <link href="{% static "css/main.css" %}" rel="stylesheet">
     <style>
       .bd-placeholder-img {
         font-size: 1.125rem;
@@ -104,8 +109,13 @@
       {% block extra_content %}{% endblock %}
     </main>
     {% include 'includes/footer.html' %}
+    {% if site_conf.use_cdn %}
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/bootstrap-dark-5@1.1.3/dist/js/darkmode.min.js"></script>
+    {% else %}
+    <script src="{% static "bootstrap@5.1.3/dist/js/bootstrap.bundle.min.js" %}"></script>
+    <script src="{% static "bootstrap-dark-5@1.1.3/dist/js/darkmode.min.js" %}"></script>
+    {% endif %}
     <!-- script src="https://cdn.jsdelivr.net/npm/masonry-layout@4.2.2/dist/masonry.pkgd.min.js" integrity="sha384-GNFwBvfVxBkLMJpYMOABq3c+d3KnQxudP/mGPkzpZSTYykLBNsZEnG2D9G/X/+7D" crossorigin="anonymous" async></script -->
     <script>
       document.querySelector("#darkmode-button").onclick = function(e){