Add authentication from upstream providers (#107)

Let BasicOIDC delegate authentication to upstream providers (Google, GitHub, GitLab, Keycloak...)

Reviewed-on: #107

templates/settings/base_settings_page.html

@@ -14,8 +14,8 @@
     <a href="/" class="d-flex align-items-center mb-3 mb-md-0 me-md-auto link-dark text-decoration-none">
         <span class="fs-4">{{ _p.app_name }}</span>
     </a>
-    {% if _p.is_admin %}
-        <span>Version {{ _p.version }}</span>
+    {% if _p.user.admin %}
+    <span>Version {{ _p.version }}</span>
     {% endif %}
     <hr>
     <ul class="nav nav-pills flex-column mb-auto">
@@ -24,24 +24,31 @@
                 Account details
             </a>
         </li>
+        {% if _p.user.allow_local_login %}
         <li>
             <a href="/settings/change_password" class="nav-link link-dark">
                 Change password
             </a>
         </li>
+        {% endif %}
         <li>
             <a href="/settings/two_factors" class="nav-link link-dark">
                 Two-factor authentication
             </a>
         </li>
 
-        {% if _p.is_admin %}
+        {% if _p.user.admin %}
         <hr/>
         <li>
             <a href="/admin/clients" class="nav-link link-dark">
                 Clients
             </a>
         </li>
+        <li>
+            <a href="/admin/providers" class="nav-link link-dark">
+                Providers
+            </a>
+        </li>
         <li>
             <a href="/admin/users" class="nav-link link-dark">
                 Users
@@ -54,7 +61,7 @@
         <a href="#" class="d-flex align-items-center link-dark text-decoration-none dropdown-toggle" id="dropdownUser"
            data-bs-toggle="dropdown" aria-expanded="false">
             <img src="/assets/img/account.png" alt="" width="32" height="32" class="rounded-circle me-2">
-            <strong>{{ _p.user_name }}</strong>
+            <strong>{{ _p.user.username }}</strong>
         </a>
         <ul class="dropdown-menu text-small shadow" aria-labelledby="dropdownUser">
             <li><a class="dropdown-item" href="/logout">Sign out</a></li>
@@ -83,6 +90,7 @@
     if(el.href === location.href) el.classList.add("active");
     else el.classList.remove("active")
   })
+
 </script>
 {% if _p.ip_location_api.is_some() %}
 <script>const IP_LOCATION_API = "{{ _p.ip_location_api.unwrap() }}"</script>