add maintenance mode warning

templates/generic/base.html

@@ -16,7 +16,11 @@
 {% endwith %}
 
 <section class="section">
-    <div class="container">
+    <div class="container">{% if maintenance %}
+        <div class="notification is-warning">
+            Wii Room is currently in <b>maintenance mode</b>.
+        </div>
+    {% endif %}
         <div class="columns">
             <div class="column is-one-quarter">
                 {% include 'includes/sidebar.html' %}

theunderground/admin.py

@@ -3,12 +3,21 @@
 from flask import url_for, flash, render_template, send_from_directory
 from flask_login import current_user, login_user, login_required, logout_user
 from werkzeug.utils import redirect
+from first import conf_first_bin_xml
 
 from models import User, db
 from room import app
 from theunderground.forms import LoginForm, NewUserForm, ChangePasswordForm
 
 
+def is_maintenance():
+    returned_xml = conf_first_bin_xml()
+    if b"<maint>1</maint>" in returned_xml:
+        return True
+    else:
+        return False
+
+
 @app.login_manager.unauthorized_handler
 def unauthorized():
     return redirect(url_for("root"))
@@ -84,4 +93,4 @@ def logout():
 @app.route("/theunderground/admin")
 @login_required
 def admin():
-    return render_template("underground.html")
+    return render_template("underground.html", maintenance=is_maintenance())