added option for linking SSO accounts to existing accounts

src/c3nav/site/templates/site/account.html

@@ -48,6 +48,17 @@
         <a class="button" href="{% url 'site.api_secret_list' %}">{% trans 'Manage API secrets' %}</a>
     </p>
 
+    {% if sso_backends %}
+    <hr>
+        <p>{% trans %}SSO Connections:{% endtrans %}</p>
+        {% for backend, name in sso_backends.not_associated.items %}
+        <p><a class="button" href="{% url 'social:begin' backend=backend %}?next={% url 'site.account' %}">Link {{ name }}</a></p>
+        {% endfor %}
+        {% for backend, name in sso_backends.associated.items %}
+        <p><a class="button delete" href="{% url 'social:disconnect' backend=backend %}?next={% url 'site.account' %}">Unlink {{ name }}</a></p>
+        {% endfor %}
+    {% endif %}
+
     <hr>
     <p>
         <a class="button" href="{% url 'site.logout' %}">{% trans 'Log out' %}</a>

src/c3nav/site/views.py

@@ -416,9 +416,23 @@ def delete_account_view(request):
 @never_cache
 @login_required(login_url='site.login')
 def account_view(request):
-    return render(request, 'site/account.html', {
+    ctx = {
         'user_has_reports': Report.user_has_reports(request.user),
-    })
+    }
+    if settings.SSO_ENABLED:
+        from social_core.backends.utils import user_backends_data
+        from social_django.utils import Storage
+        from c3nav.control.sso import get_sso_services
+        sso_services = get_sso_services()
+        ctx['sso_services'] = sso_services
+        backends = user_backends_data(
+            request.user, settings.AUTHENTICATION_BACKENDS, Storage
+        )
+        ctx['sso_backends'] = {
+            'associated': {backend.provider: sso_services[backend.provider] for backend in backends["associated"] },
+            'not_associated': {backend: sso_services[backend] for backend in backends["not_associated"] },
+        }
+    return render(request, 'site/account.html', ctx)
 
 
 @never_cache