wireguard: Add template to show generated client info

Signed-off-by: Frederico Gomes <fredericojfgomes@gmail.com>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/wireguard/templates/wireguard_auto_add_client.html

@@ -0,0 +1,46 @@
+{% extends "base.html" %}
+{% comment %}
+# SPDX-License-Identifier: AGPL-3.0-or-later
+{% endcomment %}
+
+{% load bootstrap %}
+{% load i18n %}
+
+{% block content %}
+
+  <h3>{{ title }}</h3>
+
+  <form class="form form-auto-add-client" method="post">
+    {% csrf_token %}
+
+    {{ form|bootstrap }}
+
+    {% if client_privkey %}
+    <div class="form-group">
+    <table class="table table-sm">
+      <tr><td>{% trans "IP Address" %}</td><td>{{ next_ip }}</td></tr>
+      <tr><td>{% trans "Endpoint" %}</td><td>{{ endpoint }}</td></tr>
+      <tr><td>{% trans "Public Key" %}</td><td>{{ client_pubkey }}</td></tr>
+      <tr><td>{% trans "Private Key" %}</td>
+        <td>
+          <details><summary>{% trans "Click to reveal" %}</summary>
+            {{ client_privkey }}
+          </details>
+        </td></tr>
+    </table>
+
+    <div class="alert alert-warning">
+      <strong>{% trans "Important:" %}</strong>
+      {% trans "Save the private key now. This page shows it only once!" %}
+    </div>
+    {% endif %}
+
+    <div class="form-actions">
+      <input type="submit" class="btn btn-primary"
+             value="{% trans "Add Connection" %}"/>
+      <a href="{% url 'wireguard:index' %}" class="btn btn-secondary">
+        {% trans "Cancel" %}
+      </a>
+    </div>
+  </form>
+{% endblock %}