auth providers

pytorrent/templates/login.html

@@ -16,6 +16,13 @@
     <div class="initial-loader-brand"><i class="fa-solid fa-robot"></i> pyTorrent</div>
     <div class="auth-lock" aria-hidden="true"><i class="fa-solid fa-lock"></i></div>
     <h1 class="initial-loader-title">Sign in</h1>
+    {% if external_provider %}
+    <p class="initial-loader-text">External authentication is enabled through {{ external_provider }}.</p>
+    {% if error %}<div class="alert alert-warning auth-alert">{{ error }}</div>{% endif %}
+    <div class="auth-provider-note">
+      pyTorrent expects trusted reverse-proxy identity headers. If you are already signed in, check provider headers and user mapping.
+    </div>
+    {% else %}
     <p class="initial-loader-text">Authentication is enabled for this pyTorrent instance.</p>
     {% if error %}<div class="alert alert-danger auth-alert">{{ error }}</div>{% endif %}
     <form class="auth-form" method="post">
@@ -25,6 +32,7 @@
       <input id="password" class="form-control" name="password" type="password" autocomplete="current-password">
       <button class="btn btn-primary w-100" type="submit"><i class="fa-solid fa-right-to-bracket"></i> Log in</button>
     </form>
+    {% endif %}
   </main>
 </body>
 </html>