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://ldap.imaginaerraum.de",
+parser.add_argument("--ldap_url", default="ldaps://do.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

@@ -1,73 +0,0 @@
-<?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"
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-     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

@@ -1,51 +1,32 @@
 {% extends 'base.html' %}
 {% block header %}
-    {% block title %}<h1>Nutzer Übersicht</h1>{% endblock %}
+    {% block title %}<h1>Admin Übersicht</h1>{% endblock %}
 
-    <script src="../static/js/jquery-3.6.0.js"></script>
+    <script src="../static/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
-<table class="table">
-    <thead>
-        <th scope="col">Benutzer</th>
-        <th scope="col">E-Mail</th>
-        <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'] %}
+<table border="1">
+<td>Username</td>
+<td>E-Mail</td>
+<td>Aktiv</td>
+<td>Aktionen</td>
+{% for data in admin_data %}
     <tr>
-        {% else %}
-        <tr style="background-color: lightgrey">
-        {% endif %}
-        {% for field in ['username', 'email', 'active', 'admin', 'super_admin'] %}
-        <th scope="row">{{ data[field] if data[field] }}</th>
+    {% for field in ['username', 'email', 'active'] %}
+    <td>{{ data[field] if data[field] }}</td>
     {% 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>
+{% endfor %}
 </table>
-<div class="d-grid gap-3">
-    <div class="p-2 bg-light border">
-        <h3>Neuen Benutzer erstellen:</h3>
-
+<div>
+    <p>
+    Neuen Admin erstellen:
+    </p>
     <form method="POST">
     <table>
     {{ form.csrf_token }}
@@ -65,20 +46,12 @@
     </tr>
     </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="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="Abschicken">
-        </form>
-    </div>
 </div>
+<form action="{{ url_for('backup_user_datastore') }}" method="get">
+    <input type="submit" value="Admin Daten sichern">
+</form>
+<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">
+</form>
 {% endblock %}

imaginaerraum_door_admin/templates/base.html

@@ -1,81 +1,30 @@
 <!doctype html>
-<html lang="de">
-    <head>
-        <!-- Required meta tags -->
-        <meta charset="utf-8">
-        <meta name="viewport" content="width=device-width, initial-scale=1">
-
-        <link rel="stylesheet" href="{{ url_for('static', filename='css/bootstrap.min.css') }}">
-
-        <title>Space Token Administration - {% block title %}{% endblock %}</title>
-    </head>
-
-    <body>
-        <nav class="navbar navbar-expand-lg navbar-light bg-light">
-            <div class="container-fluid">
-                <a class="navbar-brand" href="{{ url_for('door_lock') }}"><img src="{{ url_for('static', filename='iR.svg') }}" alt="iR Logo"></a>
-                <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 %}
-
-                        {% 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 %}
+<title>Space Token Administration - {% block title %}{% endblock %}</title>
 
+<nav>
+  <ul>
+    <li><a href="{{ url_for('door_lock') }}">Home</a>
+    <li><a href="{{ url_for('register') }}">Token Registrierung</a>
+    <li><a href="{{ url_for('list_tokens') }}">Token Übersicht</a>
+    <li><a href="{{ url_for('open_door') }}">Tür öffnen</a>
+    <li><a href="{{ url_for('close_door') }}">Tür schließen</a>
     {% if current_user.has_role('super_admin') %}
-                            <li class="nav-item">
-                                <a class="nav-link" href="{{ url_for('manage_admins') }}">Benutzer verwalten</a>
-                            </li>
+    <li><a href="{{ url_for('manage_admins') }}">Admins verwalten</a>
     {% 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>
+    {% 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>
     {% else %}
-                            <li class="nav-item">
-                                <a class="nav-link" href="{{ url_for('security.login') }}">Einloggen</a>
-                            </li>
+      <li><a href="{{ url_for('security.login') }}">Einloggen</a>
     {% endif %}
   </ul>
-                </div>
-            </div>
-        </nav>
-
-        <section class="content">
-            <div class="container">
+</nav>
+<section class="content">
   <header>
     {% block header %}{% endblock %}
   </header>
   {% for message in get_flashed_messages() %}
-                    <div class="alert alert-primary" role="alert">
-                      {{ message }}
-                    </div>
+    <div class="flash">{{ message }}</div>
   {% endfor %}
   {% block content %}{% endblock %}
-            </div>
-        </section>
-
-        <script src="../static/js/bootstrap.bundle.min.js"></script>
-    </body>
-</html>
+</section>

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/js/jquery-3.6.0.js"></script>
+    <script src="../static/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}

imaginaerraum_door_admin/templates/delete_admin.html

@@ -1,12 +1,12 @@
 {% extends 'base.html' %}
 {% block header %}
-    {% block title %}<h1>Benutzer löschen</h1>{% endblock %}
-    <script src="../static/js/jquery-3.6.0.js"></script>
+    {% block title %}<h1>Admin Benutzer löschen</h1>{% endblock %}
+    <script src="../static/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
 <div>
-    Achtung, Benutzer '{{ username }}' wird gelöscht.
+    Achtung, Admin '{{ 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/js/jquery-3.6.0.js"></script>
+    <script src="../static/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}

imaginaerraum_door_admin/templates/index.html

@@ -4,35 +4,16 @@
 {% endblock %}
 
 {% block content %}
-<div class="row">
-    Zustand der Tür:
-    {% if door_state == 'closed' %}
+Zustand der Tür:
+{% if door_state == 'closed' %}
     <div style="color: red">
     Abgeschlossen
     </div>
-    {% elif door_state == 'open' %}
+{% elif door_state == 'open' %}
     <div style="color: limegreen">
     Geöffnet
     </div>
-    {% endif %}
-</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 %}
-
-
+<br>
+Position Drehgeber: {{ encoder_position }}
 {% endblock %}

imaginaerraum_door_admin/templates/register.html

@@ -1,20 +1,18 @@
 {% extends 'base.html' %}
 {% block header %}
     {% block title %}<h1>Token Registrierung</h1>{% endblock %}
-    <script src="../static/js/jquery-3.6.0.js"></script>
+    <script src="../static/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 class="p-2 bg-light border">
-    <h3>RaumnutzerIn registrieren:</h3>
+    <div>
+    <p>
+    RaumnutzerIn registrieren:
+    </p>
     <form method="POST">
     <table>
     {{ form.csrf_token }}
@@ -52,7 +50,6 @@
     </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

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

imaginaerraum_door_admin/templates/security/base.html

@@ -1,31 +0,0 @@
-{% 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

@@ -2,20 +2,17 @@
 {% block header %}
     {% block title %}<h1>Token Übersicht</h1>{% endblock %}
 
-    <script src="../static/js/jquery-3.6.0.js"></script>
+    <script src="../static/jquery-3.6.0.js"></script>
 {% endblock %}
 
 {% block content %}
-<table class="table">
-<thead>
+<table border="1">
 <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>
@@ -41,7 +38,6 @@
     </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

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