added promote/demote buttons

Also added option to grant and revoke admin permissions for super-Admins.

bin/launch_webadmin

@@ -10,7 +10,7 @@ parser.add_argument("--template_folder", default="templates", help="path to Flas
 parser.add_argument("--static_folder", default="static", help="path to Flask static folder")
 parser.add_argument("--admin_file", help="Path to file for creating initial admin users")
 parser.add_argument("--log_file", default="/var/log/webinterface.log", help="Path to log file")
-parser.add_argument("--ldap_url", default="ldaps://do.imaginaerraum.de",
+parser.add_argument("--ldap_url", default="ldaps://ldap.imaginaerraum.de",
                     help="URL for LDAP server for alternative user authorization")
 parser.add_argument("--mqtt_host", default="10.10.21.2", help="IP address of MQTT broker")
 parser.add_argument("--port", default=80, help="Port for running the Flask server")

imaginaerraum_door_admin/static/iR.svg

@@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<svg
+   xmlns:dc="http://purl.org/dc/elements/1.1/"
+   xmlns:cc="http://creativecommons.org/ns#"
+   xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
+   xmlns:svg="http://www.w3.org/2000/svg"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   viewBox="0 0 13.204024 10.591578"
+   id="svg2"
+   height="10.591578mm"
+   width="13.204024mm"
+   version="1.0"
+   sodipodi:docname="iR.svg"
+   inkscape:version="0.92.3 (2405546, 2018-03-11)">
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1853"
+     inkscape:window-height="1025"
+     id="namedview8"
+     showgrid="false"
+     inkscape:zoom="4"
+     inkscape:cx="33.91598"
+     inkscape:cy="-6.5287442"
+     inkscape:window-x="67"
+     inkscape:window-y="27"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg2"
+     fit-margin-bottom="1.5"
+     fit-margin-top="0"
+     fit-margin-left="0"
+     fit-margin-right="0" />
+  <metadata
+     id="metadata13">
+    <rdf:RDF>
+      <cc:Work
+         rdf:about="">
+        <dc:format>image/svg+xml</dc:format>
+        <dc:type
+           rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
+        <dc:title />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs4">
+    <pattern
+       y="0"
+       x="0"
+       height="6"
+       width="6"
+       patternUnits="userSpaceOnUse"
+       id="WMFhbasepattern" />
+  </defs>
+  <path
+     id="path7"
+     d="m 3.356704,7.0871845 -0.008,-0.04772 -0.07159,-0.06363 h -0.05568 -0.07159 l -0.07954,0.111357 -0.04772,0.151131 -0.127268,0.42157 -0.238626,0.47725 -0.167037,0.246581 -0.167038,0.182945 -0.182945,0.135219 -0.167037,0.0875 -0.174993,0.03977 H 1.7181 1.65446 l -0.111358,-0.03183 -0.103405,-0.0875 -0.05568,-0.174993 -0.008,-0.135219 0.008,-0.13522 0.04773,-0.278399 0.13522,-0.429525 0.111357,-0.294302 0.914731,-2.433977 0.03977,-0.09545 0.07954,-0.310213 0.0159,-0.182948 -0.0159,-0.206807 -0.143175,-0.373845 -0.1909,-0.222718 -0.159083,-0.111357 -0.1909,-0.0875 -0.222718,-0.03977 -0.111357,-0.008 -0.111361,0.008 -0.214763,0.03977 -0.28635,0.127268 L 0.763594,3.6350655 0.501106,3.9691415 0.2068,4.5179795 0.0159,5.0986315 0,5.1940815 l 0.008,0.03977 0.07159,0.07159 0.06364,0.008 0.07954,-0.008 0.07159,-0.111361 0.03183,-0.119313 0.127268,-0.389752 0.294302,-0.612474 0.254536,-0.318164 0.182944,-0.151131 0.182945,-0.09545 0.1909,-0.04772 0.09545,-0.008 h 0.09545 l 0.167038,0.111361 0.07159,0.174989 v 0.143175 l -0.01589,0.270443 -0.167038,0.556793 -0.0875,0.238626 -0.914731,2.433976 -0.06363,0.151127 -0.0875,0.326124 -0.008,0.174989 0.0159,0.214763 0.143175,0.3818 0.1909,0.222718 0.167038,0.111357 0.182944,0.07954 0.214763,0.04772 h 0.119313 0.111361 l 0.206807,-0.04772 0.28635,-0.119312 0.318168,-0.278395 0.262488,-0.334075 0.28635,-0.556794 0.1909,-0.5727 0.0159,-0.09545 z M 3.245347,0.7954355 v -0.07159 l -0.05568,-0.15113 -0.119313,-0.127268 -0.159082,-0.07159 -0.111361,-0.008 -0.111357,0.008 -0.222718,0.09545 -0.182945,0.174993 -0.111357,0.222718 -0.008,0.127265 0.008,0.111361 0.08749,0.167037 0.127268,0.103402 0.143175,0.04772 h 0.06363 l 0.135219,-0.008 0.230674,-0.111361 0.174989,-0.182944 0.103406,-0.214763 0.008,-0.111357 z"
+     style="fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:0.37578771"
+     inkscape:connector-curvature="0" />
+  <path
+     id="path9"
+     d="m 7.508782,4.8520635 h 0.477251 l 1.956726,3.038492 0.294306,0.461343 0.294302,0.453388 0.06364,0.09545 0.174989,0.06363 h 0.198855 1.805596 0.167038 l 0.1909,-0.05568 0.06364,-0.103405 0.008,-0.07954 -0.008,-0.07954 -0.103405,-0.11136 -0.0875,-0.03183 -0.0875,-0.02386 -0.1909,-0.103406 -0.302257,-0.238625 -0.580656,-0.652243 -0.278395,-0.36589 -0.135219,-0.1909 -0.851099,-1.224944 -0.636333,-0.99427 0.437481,-0.0875 0.61247,-0.214763 0.373845,-0.198852 0.318168,-0.262488 0.254532,-0.326123 0.1909,-0.397708 0.09545,-0.493157 0.008,-0.28635 v -0.167038 l -0.04772,-0.310213 -0.07954,-0.28635 -0.119312,-0.262488 -0.238626,-0.349986 -0.42157,-0.373845 -0.501112,-0.28635 L 10.260982,0.1988555 9.664419,0.063632 9.0599,0 H 8.765595 4.661241 4.486252 l -0.198855,0.05568 -0.06363,0.095452 -0.008,0.07954 0.008,0.07954 0.07159,0.09545 0.174989,0.04772 h 0.09545 l 0.262488,0.008 0.334075,0.05568 0.127268,0.111361 0.05568,0.111357 0.03183,0.230669 V 1.201123 7.75536 7.98603 L 5.345307,8.224655 5.289627,8.336016 5.162359,8.447373 4.828284,8.503053 H 4.565796 4.470346 l -0.174989,0.05568 -0.07159,0.09545 -0.008,0.07159 0.008,0.07954 0.06363,0.103405 0.198855,0.05568 h 0.174989 3.587334 0.167037 l 0.1909,-0.05568 0.06363,-0.103405 0.008,-0.07954 -0.008,-0.07159 -0.07159,-0.09545 -0.167038,-0.05568 H 8.312202 8.049714 L 7.795182,8.463283 7.675869,8.407603 7.564512,8.280335 7.516792,7.978077 7.508792,7.755359 V 4.852087 Z m 2.529427,-0.644288 0.127268,-0.182948 0.167038,-0.429526 0.07954,-0.453388 0.03183,-0.461339 v -0.222718 -0.238625 l -0.04772,-0.485206 -0.103405,-0.477251 -0.198852,-0.453387 -0.151131,-0.206808 0.23067,0.05568 0.437481,0.159082 0.302257,0.159082 0.294306,0.206811 0.254532,0.278395 0.198856,0.334075 0.111357,0.413619 0.008,0.238625 -0.008,0.159082 -0.03977,0.302257 -0.08749,0.278399 -0.135224,0.254532 -0.198852,0.23067 -0.270443,0.198855 -0.34203,0.167038 -0.413615,0.127268 -0.246581,0.04772 z M 7.508782,1.1613245 v -0.103401 l 0.03977,-0.238626 0.103405,-0.167037 0.119313,-0.0875 0.174993,-0.07159 0.23067,-0.03183 0.143175,-0.008 0.206807,0.008 0.365893,0.04773 0.310213,0.09545 0.262488,0.167037 0.206807,0.23067 0.15113,0.302257 0.103406,0.389756 0.05568,0.485206 v 0.278395 0.302257 l -0.04772,0.509068 -0.103402,0.389756 -0.182949,0.294302 -0.270439,0.198856 -0.373849,0.135219 -0.493157,0.07159 -0.620425,0.03183 -0.381801,0.008 V 1.1613685 Z M 5.735,8.5030285 5.79864,8.3121285 5.83841,7.9064655 V 7.7871535 1.1772355 1.0499675 L 5.79864,0.6443045 5.735,0.4534045 h 1.487432 l -0.05568,0.07954 -0.07159,0.17499 -0.03977,0.262487 v 0.151131 6.665598 0.119312 l 0.03977,0.405663 0.06364,0.1909 z m 2.783963,-3.650965 0.119313,-0.0159 0.127264,-0.008 0.342031,-0.0159 0.342031,-0.03977 0.302257,0.493158 1.113583,1.662424 0.644288,0.859051 0.429525,0.501113 0.206811,0.214762 H 10.873397 L 8.518963,4.8520785 Z"
+     style="fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:0.37578771"
+     inkscape:connector-curvature="0" />
+</svg>

imaginaerraum_door_admin/templates/admins.html

@@ -1,32 +1,51 @@
 {% extends 'base.html' %}
 {% block header %}
-    {% block title %}<h1>Admin Übersicht</h1>{% endblock %}
+    {% block title %}<h1>Nutzer Übersicht</h1>{% endblock %}
 
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
-<table border="1">
+<table class="table">
-<td>Username</td>
+    <thead>
-<td>E-Mail</td>
+        <th scope="col">Benutzer</th>
-<td>Aktiv</td>
+        <th scope="col">E-Mail</th>
-<td>Aktionen</td>
+        <th scope="col">Aktiv</th>
+        <th scope="col">Admin</th>
+        <th scope="col">Super-Admin</th>
+        <th scope="col">Aktionen</th>
+    </thead>
+    <tbody>
     {% for data in admin_data %}
+        {% if data['active'] %}
         <tr>
-    {% for field in ['username', 'email', 'active'] %}
+        {% else %}
-    <td>{{ data[field] if data[field] }}</td>
+        <tr style="background-color: lightgrey">
+        {% endif %}
+        {% for field in ['username', 'email', 'active', 'admin', 'super_admin'] %}
+        <th scope="row">{{ data[field] if data[field] }}</th>
         {% endfor %}
         <td>
+        {% if not data['super_admin'] %}
         <a href="{{ url_for('admin_toggle_active', username=data['username']) }}"><img src="static/stop.png" title="Aktivieren/Deaktivieren" alt="Toggle active"></a>
         <a href="{{ url_for('delete_admins', username=data['username']) }}"><img src="static/delete.png" title="Löschen" alt="Delete"></a>
+        {% endif %}
+        {% if data['admin'] %}
+            {% if not data['super_admin'] %}
+            <a href="{{ url_for('demote_admin', username=data['username']) }}"><img src="static/demote.png" title="Admin-Rechte widerrufen" alt="Demote"></a>
+            {% endif %}
+        {% else %}
+            <a href="{{ url_for('promote_admin', username=data['username']) }}"><img src="static/promote.png" title="Zu Admin machen" alt="Promote"></a>
+        {% endif %}
         </td>
         </tr>
     {% endfor %}
+    </tbody>
 </table>
-<div>
+<div class="d-grid gap-3">
-    <p>
+    <div class="p-2 bg-light border">
-    Neuen Admin erstellen:
+        <h3>Neuen Benutzer erstellen:</h3>
-    </p>
+
         <form method="POST">
         <table>
         {{ form.csrf_token }}
@@ -47,11 +66,19 @@
         </table>
         </form>
     </div>
+    <div class="p-2 bg-light border">
+        <h3>Nutzerdaten sichern:</h3>
         <form action="{{ url_for('backup_user_datastore') }}" method="get">
-    <input type="submit" value="Admin Daten sichern">
+            <input type="submit" value="Download">
         </form>
+    </div>
+
+    <div class="p-2 bg-light border">
+        <h3>Nutzerdaten wiederherstellen:</h3>
         <form action="{{ url_for('restore_user_datastore') }}" method=post enctype=multipart/form-data>
           <input type=file name=file>
-  <input type=submit  value="Admin Daten wiederherstellen">
+          <input type=submit  value="Abschicken">
         </form>
+    </div>
+</div>
 {% endblock %}

imaginaerraum_door_admin/templates/base.html

@@ -1,30 +1,81 @@
 <!doctype html>
-<title>Space Token Administration - {% block title %}{% endblock %}</title>
+<html lang="de">
+    <head>
+        <!-- Required meta tags -->
+        <meta charset="utf-8">
+        <meta name="viewport" content="width=device-width, initial-scale=1">
 
-<nav>
+        <link rel="stylesheet" href="{{ url_for('static', filename='css/bootstrap.min.css') }}">
-  <ul>
+
-    <li><a href="{{ url_for('door_lock') }}">Home</a>
+        <title>Space Token Administration - {% block title %}{% endblock %}</title>
-    <li><a href="{{ url_for('register') }}">Token Registrierung</a>
+    </head>
-    <li><a href="{{ url_for('list_tokens') }}">Token Übersicht</a>
+
-    <li><a href="{{ url_for('open_door') }}">Tür öffnen</a>
+    <body>
-    <li><a href="{{ url_for('close_door') }}">Tür schließen</a>
+        <nav class="navbar navbar-expand-lg navbar-light bg-light">
-    {% if current_user.has_role('super_admin') %}
+            <div class="container-fluid">
-    <li><a href="{{ url_for('manage_admins') }}">Admins verwalten</a>
+                <a class="navbar-brand" href="{{ url_for('door_lock') }}"><img src="{{ url_for('static', filename='iR.svg') }}" alt="iR Logo"></a>
-    {% endif %}
+                <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navbarSupportedContent"
+                        aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
+                    <span class="navbar-toggler-icon"></span>
+                </button>
+                <div class="collapse navbar-collapse" id="navbarSupportedContent">
+                    <ul class="navbar-nav me-auto mb-2 mb-lg-0">
                         {% if current_user.is_authenticated %}
-        <li><a href="{{ url_for('security.change_password') }}">Passwort ändern</a>
+
-        <li><a href="{{ url_for('security.logout') }}">Benutzer <span>{{ current_user.username }}</span> ausloggen</a>
+                        {% if current_user.has_role('admin') %}
+                            <li class="nav-item dropdown">
+                                <a class="nav-link dropdown-toggle" href="#" id="navbarDropdown" role="button"
+                                   data-bs-toggle="dropdown" aria-expanded="false">
+                                    Tokens
+                                </a>
+                                <div class="dropdown-menu" aria-labelledby="navbarDropdown">
+                                    <a class="dropdown-item" href="{{ url_for('register') }}">Token Registrierung</a>
+                                    <a class="dropdown-item" href="{{ url_for('list_tokens') }}">Token Übersicht</a>
+                                </div>
+                            </li>
+                        {% endif %}
+
+                        {% if current_user.has_role('super_admin') %}
+                            <li class="nav-item">
+                                <a class="nav-link" href="{{ url_for('manage_admins') }}">Benutzer verwalten</a>
+                            </li>
+                        {% endif %}
+
+                            <li class="nav-item dropdown">
+                                <a class="nav-link dropdown-toggle" id="navbarDropdown" role="button" data-bs-toggle="dropdown"
+                                   aria-expanded="false">
+                                    Benutzer <span>{{ current_user.username }}</span>
+                                </a>
+                                <div class="dropdown-menu" aria-labelledby="navbarDropdown">
+                                    <a class="dropdown-item" href="{{ url_for('security.change_password') }}">Passwort
+                                        ändern</a>
+                                    <a class="dropdown-item" href="{{ url_for('security.logout') }}">Ausloggen</a>
+                                </div>
+                            </li>
                         {% else %}
-      <li><a href="{{ url_for('security.login') }}">Einloggen</a>
+                            <li class="nav-item">
+                                <a class="nav-link" href="{{ url_for('security.login') }}">Einloggen</a>
+                            </li>
                         {% endif %}
                     </ul>
+                </div>
+            </div>
         </nav>
+
         <section class="content">
+            <div class="container">
                 <header>
                     {% block header %}{% endblock %}
                 </header>
                 {% for message in get_flashed_messages() %}
-    <div class="flash">{{ message }}</div>
+                    <div class="alert alert-primary" role="alert">
+                      {{ message }}
+                    </div>
                 {% endfor %}
                 {% block content %}{% endblock %}
+            </div>
         </section>
+
+        <script src="../static/js/bootstrap.bundle.min.js"></script>
+    </body>
+</html>

imaginaerraum_door_admin/templates/delete.html

@@ -1,7 +1,7 @@
 {% extends 'base.html' %}
 {% block header %}
     {% block title %}<h1>Token löschen</h1>{% endblock %}
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}

imaginaerraum_door_admin/templates/delete_user.html

@@ -1,12 +1,12 @@
 {% extends 'base.html' %}
 {% block header %}
-    {% block title %}<h1>Admin Benutzer löschen</h1>{% endblock %}
+    {% block title %}<h1>Benutzer löschen</h1>{% endblock %}
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
 <div>
-    Achtung, Admin '{{ username }}' wird gelöscht.
+    Achtung, Benutzer '{{ username }}' wird gelöscht.
     Bitte zur Bestätigung den Nutzernamen eingeben:
     <form method="POST">
     <table>

imaginaerraum_door_admin/templates/edit.html

@@ -1,7 +1,7 @@
 {% extends 'base.html' %}
 {% block header %}
     {% block title %}<h1>Token editieren</h1>{% endblock %}
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}

imaginaerraum_door_admin/templates/index.html

@@ -4,6 +4,7 @@
 {% endblock %}
 
 {% block content %}
+<div class="row">
     Zustand der Tür:
     {% if door_state == 'closed' %}
         <div style="color: red">
@@ -14,6 +15,24 @@ Zustand der Tür:
         Geöffnet
         </div>
     {% endif %}
-<br>
+</div>
+
+<div class="row">
     Position Drehgeber: {{ encoder_position }}
+</div>
+
+{% if current_user.is_authenticated %}
+<div class="row">
+     <div class="col-3">
+      <a href="{{ url_for('open_door') }}" class="btn btn-success" role="button">Tür öffnen</a>
+    </div>
+    <div class="col-1"></div>
+    <div class="col-3">
+        <a href="{{ url_for('close_door') }}" class="btn btn-danger" role="button">Tür schließen</a>
+    </div>
+    <div class="col-5"></div>
+</div>
+{% endif %}
+
+
 {% endblock %}

imaginaerraum_door_admin/templates/register.html

@@ -1,18 +1,20 @@
 {% extends 'base.html' %}
 {% block header %}
     {% block title %}<h1>Token Registrierung</h1>{% endblock %}
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
 {% if not token.vars %}
+<div class="d-grid gap-3">
+    <div class="p-2 bg-light border">
     Letzter gelesener unregistrierter Token: {{ token['token'] }} <br>
     Gelesen: {{ token['timestamp']}}
+    </div>
 
-    <div>
+
-    <p>
+    <div class="p-2 bg-light border">
-    RaumnutzerIn registrieren:
+    <h3>RaumnutzerIn registrieren:</h3>
-    </p>
         <form method="POST">
         <table>
         {{ form.csrf_token }}
@@ -50,6 +52,7 @@
         </table>
         </form>
     </div>
+</div>
 {% else %}
     Keine unregistrierten Tokens in MQTT Nachrichten. Bitte Token scannen und die Seite neu laden.
 {% endif %}

imaginaerraum_door_admin/templates/security/_messages.html

@@ -0,0 +1 @@
+<!-- empty since messages are already displayed in the base.html template -->

imaginaerraum_door_admin/templates/security/base.html

@@ -0,0 +1,31 @@
+{% extends "base.html" %}
+{% block doc -%}
+<!DOCTYPE html>
+<html{% block html_attribs %}{% endblock html_attribs %}>
+  {%- block html %}
+  <head>
+    {%- block head %}
+    <title>{% block title %}{{ title|default }}{% endblock title %}</title>
+
+      {%- block metas %}
+      <meta name="viewport" content="width=device-width, initial-scale=1.0">
+      {%- endblock metas %}
+
+      {%- block styles %}
+      {%- endblock styles %}
+    {%- endblock head %}
+  </head>
+  <body{% block body_attribs %}{% endblock body_attribs %}>
+    {% block body -%}
+      {% block navbar %}
+      {%- endblock navbar %}
+      {% block content -%}
+      {%- endblock content %}
+
+      {% block scripts %}
+      {%- endblock scripts %}
+    {%- endblock body %}
+  </body>
+  {%- endblock html %}
+</html>
+{% endblock doc -%}

imaginaerraum_door_admin/templates/tokens.html

@@ -2,17 +2,20 @@
 {% block header %}
     {% block title %}<h1>Token Übersicht</h1>{% endblock %}
 
-    <script src="../static/jquery-3.6.0.js"></script>
+    <script src="../static/js/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
-<table border="1">
+<table class="table">
+<thead>
 <td>Token</td>
 <td>NutzerIn</td>
 <td>Organisation</td>
 <td>E-Mail</td>
 <td>Gültig bis</td>
 <td>Aktionen</td>
+</thead>
+<tbody>
 {% for t, data in assigned_tokens.items() %}
     <tr>
     <td>{{ t }}</td>
@@ -38,6 +41,7 @@
     </td>
     </tr>
 {% endfor %}
+</tbody>
 </table>
 <form action="{{ url_for('backup_tokens') }}" method="get">
     <input type="submit" value="Token Daten sichern">

imaginaerraum_door_admin/webapp.py

@@ -144,24 +144,25 @@ def create_application(config):
 
     # LDAP
     ldap_server = ldap3.Server(config.ldap_url)
-    local_ldap_cache = {}  # dict for caching LDAP authorization locally (stores username + hashed password)
 
     def validate_ldap(username, password):
         """Validate the user and password through an LDAP server.
 
-        If the connection completes successfully the given user and password is authorized and the password is stored
+        If the connection completes successfully the given user and password is authorized.
-        locally for future authorization without internet connectivity.
+        Then the permissions and additional information of the user are obtained through an LDAP search.
-        If the server is not reachable we check the password against a locally stored password (if the user previously
+        The data is stored in a dict which will be used later to create/update the entry for the user in the local
-        authorized through LDAP).
+        database.
 
         Parameters
         ----------
-        user     :  username for the LDAP server
+        username :  username for the LDAP server
         password :  password for the LDAP server
 
         Returns
         -------
             bool : result of the authorization process (True = success, False = failure)
+            dict : dictionary with information about an authorized user (contains username, email, hashed password,
+                    roles)
         """
 
         try:
@@ -169,47 +170,69 @@ def create_application(config):
                                    password=password, auto_bind=True)
         except ldap3.core.exceptions.LDAPBindError:
             # server reachable but user unauthorized -> fail
-            return False
+            return False, None
         except LDAPSocketOpenError:
-            # server not reachable -> try cached authorization data
+            # server not reachable -> fail (but will try authorization from local database later)
-            return user.username in local_ldap_cache and verify_password(password, local_ldap_cache[user.username])
+            return False, None
         except Exception as e:
             # for other Exceptions we just fail
-            return False
+            return False, None
 
-        # TODO check if user has permission to edit tokens
+        # get user data and permissions from LDAP server
-        lock_permission = con.search('ou=Users,dc=imaginaerraum,dc=de', f'(&(uid={user.username})(memberof=cn=Members,ou=Groups,dc=imaginaerraum,dc=de))')
+        new_user_data = {}
+        new_user_data['username'] = username
+        new_user_data['password'] = hash_password(password)
+        new_user_data['roles'] = []
+        lock_permission = con.search('ou=Users,dc=imaginaerraum,dc=de',
+                                     f'(&(uid={username})(memberof=cn=Members,ou=Groups,dc=imaginaerraum,dc=de))',
+                                     attributes=ldap3.ALL_ATTRIBUTES)
+        if lock_permission:
+            new_user_data['email'] = con.entries[0].mail.value
+        else:
+            new_user_data['email'] = None
         token_granting_permission = con.search('ou=Users,dc=imaginaerraum,dc=de',
-                            f'(&(uid={user.username})(memberof=cn=Vorstand,ou=Groups,dc=imaginaerraum,dc=de))')
+                                               f'(&(uid={username})(memberof=cn=Vorstand,ou=Groups,dc=imaginaerraum,dc=de))')
-        # if LDAP authorization succeeds we cache the password locally (in memory) to allow LDAP authentication even if
+        if token_granting_permission:
-        # the server is not reachable
+            new_user_data['roles'].append('admin')
-        local_ldap_cache[user.username] = hash_password(password)
+
-        return True
+        return True, new_user_data
 
     class ExtendedLoginForm(LoginForm):
         email = StringField('Benutzername oder E-Mail', [Required()])
         password = PasswordField('Passwort', [Required()])
+        remember = BooleanField('Login merken?')
 
         def validate(self):
-            # try authorizing using LDAP
+            # search for user in the current database
-            # authorization in LDAP uses username -> get username associated with email from the database
-            try:
-                # if an email (instead of a username) was entered for authentication we check if there already is a user
-                # with that email in the database
-                validate_email(self.email.data)
             user = find_user(self.email.data)
             if user is not None:
+                # if a user is found we use that username for LDAP authentication
                 username = user.username
             else:
                 # this means there is no user with that email in the database
-                    username = None
+                # we assume that the username was entered instead of an email and use that for authentication with LDAP
-            except EmailNotValidError:
-                # else we use the entered credentials as username
                 username = self.email.data
 
-            authorized = validate_ldap(username, self.password.data)
+            # run LDAP authorization
+            # if the authorization succeeds we also get the new_user_data dict which contains information about the
+            # user's permissions etc.
+            authorized, new_user_data = validate_ldap(username, self.password.data)
 
             if authorized:
+                if user is None:
+                    # if there was no user in the database before we create a new user
+                    user_datastore.create_user(username=new_user_data['username'], email=new_user_data['email'],
+                                               password=new_user_data['password'], roles=new_user_data['roles'])
+                    logger.info(f"New admin user '{new_user_data['username']} <{new_user_data['email']}>' created after"
+                                " successful LDAP authorization")
+                else:  # for existing users we update permissions and password/email to stay up to date
+                    user.email = new_user_data['email']
+                    user.password = new_user_data['password']
+                    for role in new_user_data['roles']:
+                        user_datastore.add_role_to_user(user, role)
+                user_datastore.commit()
+
+                self.user = find_user(self.email.data)
                 logger.info(f"Admin user with credentials '{self.email.data}' authorized through LDAP")
 
             if not authorized:
@@ -233,21 +256,22 @@ def create_application(config):
         form = AdminCreationForm()
         if request.method == 'GET':
             users = user_datastore.user_model.query.all()
-            admin_data = [{'username': u.username, 'email': u.email, 'active': u.is_active} for u in users]
+            admin_data = [{'username': u.username, 'email': u.email, 'active': u.is_active,
+                           'admin': u.has_role('admin'), 'super_admin': u.has_role('super_admin'),
+                           } for u in users]
             return render_template('admins.html', admin_data=admin_data, form=form)
         elif form.validate():
             if user_datastore.find_user(username=form.name.data) is not None or \
                     user_datastore.find_user(email=form.email.data) is not None:
-                flash("A user with the same name or email is already registered!")
+                flash("Ein Benutzer mit diesem Nutzernamen oder dieser E-Mail-Adresse existiert bereits!")
                 return redirect('/manage_admins')
             else:
                 pw = secrets.token_urlsafe(16)
-                new_user = user_datastore.create_user(username=form.name.data, email=form.email.data, roles=['admin'],
+                new_user = user_datastore.create_user(username=form.name.data, email=form.email.data,
                                                       password=hash_password(pw))
                 logger.info(
-                    f"Super admin {current_user.username} created new admin account for {new_user.username} <{new_user.email}>")
+                    f"Super admin {current_user.username} created new user account for {new_user.username} <{new_user.email}>")
-                flash(
+                flash(f"Ein Account für den Nutzer {new_user.username} wurde erstellt. Verwende das Passwort {pw} um den Nutzer einzuloggen.")
-                    f"An account for the new admin user {new_user.username} has been created. Use the randomly generated password {pw} to log in.")
                 db.session.commit()
                 return redirect('/manage_admins')
 
@@ -256,13 +280,13 @@ def create_application(config):
     def delete_admins(username):
         user = user_datastore.find_user(username=username)
         if user is None:
-            flash(f"Invalid user {username}")
+            flash(f"Ungültiger Nutzer {username}")
             return redirect('/manage_admins')
         if user.has_role('super_admin'):
-            flash('Cannot delete super admins!')
+            flash('Super-Admins können nicht gelöscht werden!')
             return redirect('/manage_admins')
         if user.is_active:
-            flash('Cannot delete active users. Please deactivate user first!')
+            flash('Aktive Nutzer können nicht gelöscht werden! Bitte den Benutzer zuerst deaktivieren.')
             return redirect('/manage_admins')
 
         # set up form for confirming deletion
@@ -271,15 +295,15 @@ def create_application(config):
 
         if request.method == 'GET':
             # return page asking the user to confirm delete
-            return render_template('delete_admin.html', username=username, form=form)
+            return render_template('delete_user.html', username=username, form=form)
         elif form.validate():
             user_datastore.delete_user(user)
-            flash(f"Username {username} was deleted.")
+            flash(f"Benutzer {username} wurde gelöscht.")
             logger.info(f"Super admin {current_user.username} deleted admin user {username}")
             db.session.commit()
             return redirect('/manage_admins')
         else:
-            flash("Username does not match. User was not deleted!")
+            flash("Der eingegebene Nutzername stimmt nicht überein. Der Benutzer wurde nicht gelöscht!")
             return redirect('/manage_admins')
 
     @app.route('/admin_toggle_active/<username>')
@@ -287,10 +311,10 @@ def create_application(config):
     def admin_toggle_active(username):
         user = user_datastore.find_user(username=username)
         if user is None:
-            flash(f"Invalid user {username}")
+            flash(f"Ungültiger Nutzer {username}")
             return redirect('/manage_admins')
         if user.has_role('super_admin'):
-            flash('Cannot deactivate super admins!')
+            flash('Super-Admins können nicht deaktiviert werden!')
             return redirect('/manage_admins')
         user_datastore.toggle_active(user)
         if user.is_active:
@@ -300,12 +324,46 @@ def create_application(config):
         db.session.commit()
         return redirect('/manage_admins')
 
+    @app.route('/promote_admin/<username>')
+    @roles_required('super_admin')
+    def promote_admin(username):
+        user = user_datastore.find_user(username=username)
+        if user is None:
+            flash(f"Ungültiger Nutzer {username}")
+            return redirect('/manage_admins')
+        if user.has_role('admin'):
+            flash(f'Benutzer {username} hat bereits Admin-Rechte!')
+            return redirect('/manage_admins')
+        user_datastore.add_role_to_user(user, 'admin')
+        logger.info(f"Super admin {current_user.username} granted admin privileges to user {username}")
+        db.session.commit()
+        return redirect('/manage_admins')
+
+    @app.route('/demote_admin/<username>')
+    @roles_required('super_admin')
+    def demote_admin(username):
+        user = user_datastore.find_user(username=username)
+        if user is None:
+            flash(f"Ungültiger Nutzer {username}")
+            return redirect('/manage_admins')
+        if user.has_role('super_admin'):
+            flash(f'Benutzer {username} hat Super-Admin-Rechte und kann nicht verändert werden!')
+            return redirect('/manage_admins')
+        if user.has_role('admin'):
+            user_datastore.remove_role_from_user(user, 'admin')
+            logger.info(f"Super admin {current_user.username} revoked admin privileges of user {username}")
+            db.session.commit()
+        else:
+            flash(f'Benutzer {username} ist bereits kein Admin!')
+        return redirect('/manage_admins')
+
     @app.route('/backup_user_datastore')
     @roles_required('super_admin')
     def backup_user_datastore():
         # get list of defined admin users for backup
         users = user_datastore.user_model.query.all()
-        user_data = [{'username': u.username, 'email': u.email, 'active': u.is_active, 'password_hash': u.password}
+        user_data = [{'username': u.username, 'email': u.email, 'active': u.is_active, 'password_hash': u.password,
+                      'roles': [r.name for r in u.roles]}
                      for u in users if not u.has_role('super_admin')]
         try:
             with tempfile.TemporaryDirectory() as tmpdir:
@@ -338,18 +396,20 @@ def create_application(config):
                 valid &= all(type(d) == dict for d in user_data)
                 if valid:
                     for d in user_data:
-                        entry_valid = set(d.keys()) == { 'active', 'email', 'password_hash', 'username'}
+                        entry_valid = set(d.keys()) == { 'active', 'email', 'password_hash', 'username', 'roles'}
                         entry_valid &= all(len(d[key]) > 0 for key in ['email', 'password_hash', 'username'])
                         entry_valid &= type(d['active']) == bool
+                        entry_valid &= type(d['roles']) == list
                         validate_email(d['email'])
                         if entry_valid:
                             existing_user = user_datastore.find_user(username=d['username'], email=d['email'])
                             if existing_user is None:
-                                user_datastore.create_user(username=d['username'], email=d['email'], password=d['password_hash'],
+                                user_datastore.create_user(username=d['username'], email=d['email'],
-                                           roles=['admin'], active=d['active'])
+                                                           password=d['password_hash'], active=d['active'],
-                                flash(f"Admin Account für Benutzer '{d['username']} wurde wiederhergestellt.")
+                                                           roles=d['roles'])
+                                flash(f"Account für Benutzer '{d['username']} wurde wiederhergestellt.")
                             else:
-                                flash(f"Admin '{d['username']} existiert bereits. Eintrag wird übersprungen.")
+                                flash(f"Benutzer '{d['username']} existiert bereits. Eintrag wird übersprungen.")
                         else:
                             raise ValueError(f"Ungültige Daten für User Entry {d}")
                 else:
@@ -357,7 +417,7 @@ def create_application(config):
             except Exception as e:
                 flash(f"Die Datei konnte nicht gelesen werden. Exception: {e}")
                 return redirect('/manage_admins')
-            flash("Admin Benutzer aus Datei gelesen.")
+            flash("Benutzer aus Datei gelesen.")
             db.session.commit()
         else:
             flash("Ungültige Dateiendung")
@@ -369,7 +429,7 @@ def create_application(config):
 
     # token overview
     @app.route('/tokens')
-    @auth_required()
+    @roles_required('admin')
     def list_tokens():
         tokens = door.get_tokens()
         assigned_tokens = {t: data for t, data in tokens.items() if not data['inactive']}
@@ -378,7 +438,7 @@ def create_application(config):
 
     # routes for registering, editing and deleting tokens
     @app.route('/register-token', methods=['GET', 'POST'])
-    @auth_required()
+    @roles_required('admin')
     def register():
         """Register new token for locking and unlocking the door.
 
@@ -410,7 +470,7 @@ def create_application(config):
             return render_template('register.html', token=door.get_most_recent_token(), form=form)
 
     @app.route('/edit-token/<token>', methods=['GET', 'POST'])
-    @auth_required()
+    @roles_required('admin')
     def edit_token(token):
         """Edit data in the token file (name, email, valid_thru date, active/inactive).
 
@@ -465,7 +525,7 @@ def create_application(config):
                 return render_template('edit.html', token=token, form=form)
 
     @app.route('/store-token')
-    @auth_required()
+    @roles_required('admin')
     def store_token():
         """Store token to the token file on disk.
 
@@ -487,7 +547,7 @@ def create_application(config):
         return redirect('/tokens')
 
     @app.route('/delete-token/<token>', methods=['GET', 'POST'])
-    @auth_required()
+    @roles_required('admin')
     def delete_token(token):
         """Delete the given token from the token file and store the new token file to disk
 
@@ -528,7 +588,7 @@ def create_application(config):
             return redirect('/tokens')
 
     @app.route('/deactivate-token/<token>')
-    @auth_required()
+    @roles_required('admin')
     def deactivate_token(token):
         """Deactivate access for the given token. This updates the token file on disk.
 
@@ -548,7 +608,7 @@ def create_application(config):
         return redirect('/tokens')
 
     @app.route('/backup_tokens')
-    @auth_required()
+    @roles_required('admin')
     def backup_tokens():
         # get list of defined admin users for backup
         tokens = door.get_tokens()