Control: fix yes/no-question not being optional in order edit form

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/dependabot.yml

@@ -9,6 +9,7 @@ updates:
     directory: "/src"
     schedule:
       interval: "daily"
+    versioning-strategy: increase
   - package-ecosystem: "npm"
     directory: "/src/pretix/static/npm_dir"
     schedule:

.github/workflows/docs.yml

@@ -17,16 +17,19 @@ on:
 permissions:
   contents: read  #  to fetch code (actions/checkout)
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   spelling:
     name: Spellcheck
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip

.github/workflows/strings.yml

@@ -15,16 +15,19 @@ on:
 permissions:
   contents: read  #  to fetch code (actions/checkout)
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   compile:
     runs-on: ubuntu-22.04
     name: Check gettext syntax
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip
@@ -47,10 +50,10 @@ jobs:
     name: Spellcheck
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip

.github/workflows/style.yml

@@ -15,16 +15,19 @@ on:
 permissions:
   contents: read  #  to fetch code (actions/checkout)
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   isort:
     name: isort
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip
@@ -42,10 +45,10 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - uses: actions/cache@v1
         with:
           path: ~/.cache/pip
@@ -63,10 +66,10 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
       - name: Install Dependencies
         run: pip3 install licenseheaders
       - name: Run licenseheaders

.github/workflows/tests.yml

@@ -15,28 +15,31 @@ on:
 permissions:
   contents: read  #  to fetch code (actions/checkout)
 
+env:
+  FORCE_COLOR: 1
+
 jobs:
   test:
     runs-on: ubuntu-22.04
     name: Tests
     strategy:
       matrix:
-        python-version: ["3.7", "3.9", "3.10"]
+        python-version: ["3.9", "3.10", "3.11"]
         database: [sqlite, postgres, mysql]
         exclude:
-          - database: mysql
-            python-version: "3.10"
           - database: mysql
             python-version: "3.9"
+          - database: mysql
+            python-version: "3.11"
           - database: sqlite
-            python-version: "3.7"
+            python-version: "3.9"
           - database: sqlite
             python-version: "3.10"
     steps:
       - uses: actions/checkout@v2
       - uses: getong/mariadb-action@v1.1
         with:
-          mariadb version: '10.4'
+          mariadb version: '10.10'
           mysql database: 'pretix'
           mysql root password: ''
         if: matrix.database == 'mysql'
@@ -78,5 +81,6 @@ jobs:
         uses: codecov/codecov-action@v1
         with:
           file: src/coverage.xml
+          token: ${{ secrets.CODECOV_TOKEN }}
           fail_ci_if_error: true
-        if: matrix.database == 'postgres' && matrix.python-version == '3.10'
+        if: matrix.database == 'postgres' && matrix.python-version == '3.11'

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.9-bullseye
+FROM python:3.11-bullseye
 
 RUN apt-get update && \
     apt-get install -y --no-install-recommends \

doc/_themes/pretix_theme/layout.html

@@ -18,67 +18,82 @@
   <title>{{ title|striptags|e }}{{ titlesuffix }}</title>
   {% endblock %}
 
-  {# FAVICON #}
-  {% if favicon %}
-    <link rel="shortcut icon" href="{{ pathto('_static/' + favicon, 1) }}"/>
-  {% endif %}
-  {# CANONICAL URL #}
-  {% if theme_canonical_url %}
+
+  {#- CSS #}
+  {%- for css in css_files %}
+    {%- if css|attr("rel") %}
+      <link rel="{{ css.rel }}" href="{{ pathto(css.filename, 1) }}" type="text/css"{% if css.title is not none %} title="{{ css.title }}"{% endif %} />
+    {%- else %}
+      <link rel="stylesheet" href="{{ pathto(css, 1) }}" type="text/css" />
+    {%- endif %}
+  {%- endfor %}
+
+  {%- for cssfile in extra_css_files %}
+    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
+  {%- endfor -%}
+
+  {#- FAVICON
+      favicon_url is the only context var necessary since Sphinx 4.
+      In Sphinx<4, we use favicon but need to prepend path info.
+  #}
+  {%- set _favicon_url = favicon_url | default(pathto('_static/' + (favicon or ""), 1)) %}
+  {%- if favicon_url or favicon %}
+    <link rel="shortcut icon" href="{{ _favicon_url }}"/>
+  {%- endif %}
+
+  {#- CANONICAL URL (deprecated) #}
+  {%- if theme_canonical_url and not pageurl %}
     <link rel="canonical" href="{{ theme_canonical_url }}{{ pagename }}.html"/>
-  {% endif %}
+  {%- endif -%}
 
-  {# CSS #}
+  {#- CANONICAL URL #}
+  {%- if pageurl %}
+    <link rel="canonical" href="{{ pageurl|e }}" />
+  {%- endif -%}
 
-  {# OPENSEARCH #}
-  {% if not embedded %}
-    {% if use_opensearch %}
-      <link rel="search" type="application/opensearchdescription+xml" title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}" href="{{ pathto('_static/opensearch.xml', 1) }}"/>
-    {% endif %}
+  {#- JAVASCRIPTS #}
+  {%- block scripts %}
+  <!--[if lt IE 9]>
+    <script src="{{ pathto('_static/js/html5shiv.min.js', 1) }}"></script>
+  <![endif]-->
+  {%- if not embedded %}
+  {# XXX Sphinx 1.8.0 made this an external js-file, quick fix until we refactor the template to inherert more blocks directly from sphinx #}
+      {%- for scriptfile in script_files %}
+        {{ js_tag(scriptfile) }}
+      {%- endfor %}
+    <script src="{{ pathto('_static/js/theme.js', 1) }}"></script>
 
-  {% endif %}
-
-  {# RTD hosts this file, so just load on non RTD builds #}
-    <link rel="stylesheet" href="{{ pathto('_static/' + style, 1) }}" type="text/css" />
-
-  {% for cssfile in css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
-
-  {% for cssfile in extra_css_files %}
-    <link rel="stylesheet" href="{{ pathto(cssfile, 1) }}" type="text/css" />
-  {% endfor %}
+    {#- OPENSEARCH #}
+    {%- if use_opensearch %}
+    <link rel="search" type="application/opensearchdescription+xml"
+          title="{% trans docstitle=docstitle|e %}Search within {{ docstitle }}{% endtrans %}"
+          href="{{ pathto('_static/opensearch.xml', 1) }}"/>
+    {%- endif %}
+  {%- endif %}
+  {%- endblock %}
 
   {%- block linktags %}
     {%- if hasdoc('about') %}
-        <link rel="author" title="{{ _('About these documents') }}"
-              href="{{ pathto('about') }}"/>
+    <link rel="author" title="{{ _('About these documents') }}" href="{{ pathto('about') }}" />
     {%- endif %}
     {%- if hasdoc('genindex') %}
-        <link rel="index" title="{{ _('Index') }}"
-              href="{{ pathto('genindex') }}"/>
+    <link rel="index" title="{{ _('Index') }}" href="{{ pathto('genindex') }}" />
     {%- endif %}
     {%- if hasdoc('search') %}
-        <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}"/>
+    <link rel="search" title="{{ _('Search') }}" href="{{ pathto('search') }}" />
     {%- endif %}
     {%- if hasdoc('copyright') %}
-        <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}"/>
-    {%- endif %}
-    <link rel="top" title="{{ docstitle|e }}" href="{{ pathto('index') }}"/>
-    {%- if parents %}
-        <link rel="up" title="{{ parents[-1].title|striptags|e }}" href="{{ parents[-1].link|e }}"/>
+    <link rel="copyright" title="{{ _('Copyright') }}" href="{{ pathto('copyright') }}" />
     {%- endif %}
     {%- if next %}
-        <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}"/>
+    <link rel="next" title="{{ next.title|striptags|e }}" href="{{ next.link|e }}" />
     {%- endif %}
     {%- if prev %}
-        <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}"/>
+    <link rel="prev" title="{{ prev.title|striptags|e }}" href="{{ prev.link|e }}" />
     {%- endif %}
   {%- endblock %}
   {%- block extrahead %} {% endblock %}
 
-  {# Keep modernizr in head - http://modernizr.com/docs/#installing #}
-  <script src="{{ pathto('_static/js/modernizr.min.js', 1) }}"></script>
-
 </head>
 
 <body class="wy-body-for-nav" role="document">
@@ -92,16 +107,14 @@
         <div class="wy-side-nav-search">
           {% block sidebartitle %}
 
-          {% if logo and theme_logo_only %}
-            <a href="{{ pathto('index') }}">
-          {% else %}
-            <a href="{{ pathto('index') }}" class="icon icon-home"> {{ project }}
-          {% endif %}
-
-          {% if logo %}
-            {# Not strictly valid HTML, but it's the only way to display/scale it properly, without weird scripting or heaps of work #}
-            <img src="{{ pathto('_static/' + logo, 1) }}" class="logo" />
-          {% endif %}
+          {# the logo helper function was removed in Sphinx 6 and deprecated since Sphinx 4 #}
+          {# the master_doc variable was renamed to root_doc in Sphinx 4 (master_doc still exists in later Sphinx versions) #}
+          {%- set _logo_url = logo_url|default(pathto('_static/' + (logo or ""), 1)) %}
+          {%- set _root_doc = root_doc|default(master_doc) %}
+          <a href="{{ pathto(_root_doc) }}"{% if not theme_logo_only %} class="icon icon-home"{% endif %}>
+            {%- if logo or logo_url %}
+              <img src="{{ _logo_url }}" class="logo" alt="{{ _('Logo') }}"/>
+            {%- endif %}
           </a>
 
           {% include "searchbox.html" %}

doc/_themes/pretix_theme/search.html

@@ -5,31 +5,37 @@
     Template for the search page.
 
     :copyright: Copyright 2007-2013 by the Sphinx team, see AUTHORS.
-    :license: BSD, see LICENSE for details.
+    :license: BSD, see https://github.com/sphinx-doc/sphinx/blob/master/LICENSE for details.
 #}
 {%- extends "layout.html" %}
 {% set title = _('Search') %}
-{% set script_files = script_files + ['_static/searchtools.js'] %}
+{% set display_vcs_links = False %}
+{%- block scripts %}
+    {{ super() }}
+    <script src="{{ pathto('_static/searchtools.js', 1) }}"></script>
+    <script src="{{ pathto('_static/language_data.js', 1) }}"></script>
+{%- endblock %}
 {% block footer %}
-  <script type="text/javascript">
+  <script>
     jQuery(function() { Search.loadIndex("{{ pathto('searchindex.js', 1) }}"); });
   </script>
   {# this is used when loading the search index using $.ajax fails,
      such as on Chrome for documents on localhost #}
-  <script type="text/javascript" id="searchindexloader"></script>
+  <script id="searchindexloader"></script>
   {{ super() }}
 {% endblock %}
 {% block body %}
   <noscript>
   <div id="fallback" class="admonition warning">
     <p class="last">
-      {% trans %}Please activate JavaScript to enable the search
+      {% trans trimmed %}Please activate JavaScript to enable the search
       functionality.{% endtrans %}
     </p>
   </div>
   </noscript>
 
   {% if search_performed %}
+    {# Translators: Search is a noun, not a verb #}
     <h2>{{ _('Search Results') }}</h2>
     {% if not search_results %}
       <p>{{ _('Your search did not match any documents. Please make sure that all words are spelled correctly and that you\'ve selected enough categories.') }}</p>
@@ -47,4 +53,4 @@
     </ul>
   {% endif %}
   </div>
-{% endblock %}
+{% endblock %}

doc/admin/config.rst

@@ -2,7 +2,7 @@
 
 .. _`config`:
 
-.. spelling:: Galera
+.. spelling:word-list:: Galera
 
 Configuration file
 ==================
@@ -84,7 +84,7 @@ Example::
     Enables or disables the "keep me logged in" button. Defaults to ``on``.
 
 ``ecb_rates``
-    By default, pretix periodically downloads a XML file from the European Central Bank to retrieve exchange rates
+    By default, pretix periodically downloads currency rates from the European Central Bank as well as other authorities
     that are used to print tax amounts in the customer currency on invoices for some currencies. Set to ``off`` to
     disable this feature. Defaults to ``on``.
 
@@ -106,6 +106,11 @@ Example::
     proxy that actively removes and re-adds the header to make sure the correct value is set.
     Defaults to ``off``.
 
+``trust_x_forwarded_host``
+    Specifies whether the ``X-Forwarded-Host`` header can be trusted. Only set to ``on`` if you have a reverse
+    proxy that actively removes and re-adds the header to make sure the correct value is set.
+    Defaults to ``off``.
+
 ``csp_log``
     Log violations of the Content Security Policy (CSP). Defaults to ``on``.
 
@@ -141,7 +146,7 @@ Database settings
 Example::
 
     [database]
-    backend=mysql
+    backend=postgresql
     name=pretix
     user=pretix
     password=abcd
@@ -149,7 +154,7 @@ Example::
     port=3306
 
 ``backend``
-    One of ``mysql``, ``sqlite3``, ``oracle`` and ``postgresql``.
+    One of ``mysql`` (deprecated), ``sqlite3`` and ``postgresql``.
     Default: ``sqlite3``.
 
     If you use MySQL, be sure to create your database using
@@ -163,7 +168,7 @@ Example::
     Connection details for the database connection. Empty by default.
 
 ``galera``
-    Indicates if the database backend is a MySQL/MariaDB Galera cluster and
+    (Deprecated) Indicates if the database backend is a MySQL/MariaDB Galera cluster and
     turns on some optimizations/special case handlers. Default: ``False``
 
 .. _`config-replica`:
@@ -194,7 +199,7 @@ Example::
 
     [urls]
     media=/media/
-    static=/media/
+    static=/static/
 
 ``media``
     The URL to be used to serve user-uploaded content. You should not need to modify

doc/admin/index.rst

@@ -14,4 +14,5 @@ This documentation is for everyone who wants to install pretix on a server.
    maintainance
    scaling
    errors
+   mysql2postgres
    indexes

doc/admin/indexes.rst

@@ -45,8 +45,8 @@ Here is the currently recommended set of commands::
     CREATE INDEX CONCURRENTLY pretix_addidx_order_comment
         ON pretixbase_order
         USING gin (upper("comment") gin_trgm_ops);
-    CREATE INDEX CONCURRENTLY pretix_addidx_order_event_date
-        ON public.pretixbase_order (event_id, datetime);
+    CREATE INDEX CONCURRENTLY pretix_addidx_order_event_date_id
+        ON public.pretixbase_order (event_id, datetime, id);
     CREATE INDEX CONCURRENTLY pretix_addidx_orderpos_name
         ON pretixbase_orderposition
         USING gin (upper("attendee_name_cached") gin_trgm_ops);
@@ -66,10 +66,10 @@ Here is the currently recommended set of commands::
         ON public.pretixbase_orderposition (upper((attendee_email)::text));
     CREATE INDEX CONCURRENTLY pretix_addidx_voucher_code_upper
         ON public.pretixbase_voucher (upper((code)::text));
-    CREATE INDEX CONCURRENTLY pretix_addidx_logentry_event_date
-        ON public.pretixbase_logentry (event_id, datetime);
-    CREATE INDEX CONCURRENTLY pretix_addidx_logentry_event_cid_date
-        ON public.pretixbase_logentry (event_id, content_type_id, datetime);
+    CREATE INDEX CONCURRENTLY pretix_addidx_logentry_event_date_id
+        ON public.pretixbase_logentry (event_id, datetime, id);
+    CREATE INDEX CONCURRENTLY pretix_addidx_logentry_event_cid_date_id
+        ON public.pretixbase_logentry (event_id, content_type_id, datetime, id);
 
 
 Also, if you use our ``pretix-shipping`` plugin::

doc/admin/installation/docker_smallscale.rst

@@ -14,7 +14,7 @@ This has some trade-offs in terms of performance and isolation but allows a rath
              get it right. If you're not feeling comfortable managing a Linux server, check out our hosting and service
              offers at `pretix.eu`_.
 
-We tested this guide on the Linux distribution **Debian 8.0** but it should work very similar on other
+We tested this guide on the Linux distribution **Debian 11.0** but it should work very similar on other
 modern distributions, especially on all systemd-based ones.
 
 Requirements
@@ -26,7 +26,7 @@ installation guides):
 * `Docker`_
 * A SMTP server to send out mails, e.g. `Postfix`_ on your machine or some third-party server you have credentials for
 * A HTTP reverse proxy, e.g. `nginx`_ or Apache to allow HTTPS connections
-* A `PostgreSQL`_ 9.6+, `MySQL`_ 5.7+, or MariaDB 10.2.7+ database server
+* A `PostgreSQL`_ 9.6+ database server
 * A `redis`_ server
 
 We also recommend that you use a firewall, although this is not a pretix-specific recommendation. If you're new to
@@ -58,9 +58,6 @@ directory writable to the user that runs pretix inside the docker container::
 Database
 --------
 
-.. warning:: **Please use PostgreSQL for all new installations**. If you need to go for MySQL, make sure you run
-             **MySQL 5.7 or newer** or **MariaDB 10.2.7 or newer**.
-
 Next, we need a database and a database user. We can create these with any kind of database managing tool or directly on
 our database's shell. Please make sure that UTF8 is used as encoding for the best compatibility. You can check this with
 the following command::
@@ -86,13 +83,6 @@ Restart PostgreSQL after you changed these files::
 
 If you have a firewall running, you should also make sure that port 5432 is reachable from the ``172.17.0.1/16`` subnet.
 
-For MySQL, you can either also use network-based connections or mount the ``/var/run/mysqld/mysqld.sock`` socket into the docker container.
-When using MySQL, make sure you set the character set of the database to ``utf8mb4``, e.g. like this::
-
-    mysql > CREATE DATABASE pretix DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_unicode_ci;
-
-You will also need to make sure that ``sql_mode`` in your ``my.cnf`` file does **not** include ``ONLY_FULL_GROUP_BY``.
-
 Redis
 -----
 
@@ -152,15 +142,13 @@ Fill the configuration file ``/etc/pretix/pretix.cfg`` with the following conten
     trust_x_forwarded_proto=on
 
     [database]
-    ; Replace postgresql with mysql for MySQL
     backend=postgresql
     name=pretix
     user=pretix
     ; Replace with the password you chose above
     password=*********
     ; In most docker setups, 172.17.0.1 is the address of the docker host. Adjust
-    ; this to wherever your database is running, e.g. the name of a linked container
-    ; or of a mounted MySQL socket.
+    ; this to wherever your database is running, e.g. the name of a linked container.
     host=172.17.0.1
 
     [mail]
@@ -212,8 +200,6 @@ named ``/etc/systemd/system/pretix.service`` with the following content::
     [Install]
     WantedBy=multi-user.target
 
-When using MySQL and socket mounting, you'll need the additional flag ``-v /var/run/mysqld:/var/run/mysqld`` in the command.
-
 You can now run the following commands
 to enable and start the service::
 
@@ -339,7 +325,6 @@ workers, e.g. ``docker run … taskworker -Q notifications --concurrency 32``.
 .. _nginx: https://botleg.com/stories/https-with-lets-encrypt-and-nginx/
 .. _Let's Encrypt: https://letsencrypt.org/
 .. _pretix.eu: https://pretix.eu/
-.. _MySQL: https://dev.mysql.com/doc/refman/5.7/en/linux-installation-apt-repo.html
 .. _PostgreSQL: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-20-04
 .. _redis: https://blog.programster.org/debian-8-install-redis-server/
 .. _ufw: https://en.wikipedia.org/wiki/Uncomplicated_Firewall

doc/admin/installation/general.rst

@@ -1,6 +1,6 @@
 .. highlight:: ini
 
-.. spelling:: SQL
+.. spelling:word-list:: SQL
 
 General remarks
 ===============

doc/admin/installation/manual_smallscale.rst

@@ -12,7 +12,7 @@ solution with many things readily set-up, look at :ref:`dockersmallscale`.
              get it right. If you're not feeling comfortable managing a Linux server, check out our hosting and service
              offers at `pretix.eu`_.
 
-We tested this guide on the Linux distribution **Debian 10.0** but it should work very similar on other
+We tested this guide on the Linux distribution **Debian 11.6** but it should work very similar on other
 modern distributions, especially on all systemd-based ones.
 
 Requirements
@@ -23,7 +23,7 @@ installation guides):
 
 * A SMTP server to send out mails, e.g. `Postfix`_ on your machine or some third-party server you have credentials for
 * A HTTP reverse proxy, e.g. `nginx`_ or Apache to allow HTTPS connections
-* A `PostgreSQL`_ 9.6+, `MySQL`_ 5.7+, or MariaDB 10.2.7+ database server
+* A `PostgreSQL`_ 11+ database server
 * A `redis`_ server
 * A `nodejs`_ installation
 
@@ -47,9 +47,6 @@ In this guide, all code lines prepended with a ``#`` symbol are commands that yo
 Database
 --------
 
-.. warning:: **Please use PostgreSQL for all new installations**. If you need to go for MySQL, make sure you run
-             **MySQL 5.7 or newer** or **MariaDB 10.2.7 or newer**.
-
 Having the database server installed, we still need a database and a database user. We can create these with any kind
 of database managing tool or directly on our database's shell. Please make sure that UTF8 is used as encoding for the
 best compatibility. You can check this with the following command::
@@ -61,12 +58,6 @@ For PostgreSQL database creation, we would do::
     # sudo -u postgres createuser pretix
     # sudo -u postgres createdb -O pretix pretix
 
-When using MySQL, make sure you set the character set of the database to ``utf8mb4``, e.g. like this::
-
-    mysql > CREATE DATABASE pretix DEFAULT CHARACTER SET utf8mb4 DEFAULT COLLATE utf8mb4_unicode_ci;
-
-You will also need to make sure that ``sql_mode`` in your ``my.cnf`` file does **not** include ``ONLY_FULL_GROUP_BY``.
-
 Package dependencies
 --------------------
 
@@ -74,7 +65,7 @@ To build and run pretix, you will need the following debian packages::
 
     # apt-get install git build-essential python-dev python3-venv python3 python3-pip \
                       python3-dev libxml2-dev libxslt1-dev libffi-dev zlib1g-dev libssl-dev \
-                      gettext libpq-dev libmariadb-dev libjpeg-dev libopenjp2-7-dev
+                      gettext libpq-dev libjpeg-dev libopenjp2-7-dev
 
 Config file
 -----------
@@ -97,16 +88,12 @@ Fill the configuration file ``/etc/pretix/pretix.cfg`` with the following conten
     trust_x_forwarded_proto=on
 
     [database]
-    ; For MySQL, replace with "mysql"
     backend=postgresql
     name=pretix
     user=pretix
-    ; For MySQL, enter the user password. For PostgreSQL on the same host,
-    ; we don't need one because we can use peer authentification if our
-    ; PostgreSQL user matches our unix user.
+    ; For PostgreSQL on the same host, we don't need a password because we can use
+    ; peer authentication if our PostgreSQL user matches our unix user.
     password=
-    ; For MySQL, use local socket, e.g. /var/run/mysqld/mysqld.sock
-    ; For a remote host, supply an IP address
     ; For local postgres authentication, you can leave it empty
     host=
 
@@ -140,11 +127,7 @@ We now install pretix, its direct dependencies and gunicorn::
 
     (venv)$ pip3 install pretix gunicorn
 
-If you're running MySQL, also install the client library::
-
-    (venv)$ pip3 install mysqlclient
-
-Note that you need Python 3.7 or newer. You can find out your Python version using ``python -V``.
+Note that you need Python 3.9 or newer. You can find out your Python version using ``python -V``.
 
 We also need to create a data directory::
 
@@ -318,12 +301,32 @@ example::
     (venv)$ python -m pretix rebuild
     # systemctl restart pretix-web pretix-worker
 
+System updates
+--------------
+
+After system updates, such as updates to a new Ubuntu or Debian release, you might be using a new Python version.
+That's great, but requires some adjustments. First, adjust any old version paths in your nginx configuration file.
+Then, re-create your Python environment::
+
+    $ source /var/pretix/venv/bin/activate
+    (venv)$ pip3 freeze > /tmp/pip-backup.txt
+    $ rm -rf /var/pretix/venv
+    $ python3 -m venv /var/pretix/venv
+    $ source /var/pretix/venv/bin/activate
+    (venv)$ pip3 install -U pip wheel setuptools
+    (venv)$ pip3 install -r /tmp/pip-backup.txt
+
+Then, proceed like after any plugin installation::
+
+    (venv)$ python -m pretix migrate
+    (venv)$ python -m pretix rebuild
+    (venv)$ python -m pretix updatestyles
+    # systemctl restart pretix-web pretix-worker
 
 .. _Postfix: https://www.digitalocean.com/community/tutorials/how-to-install-and-configure-postfix-as-a-send-only-smtp-server-on-ubuntu-16-04
 .. _nginx: https://botleg.com/stories/https-with-lets-encrypt-and-nginx/
 .. _Let's Encrypt: https://letsencrypt.org/
 .. _pretix.eu: https://pretix.eu/
-.. _MySQL: https://dev.mysql.com/doc/refman/5.7/en/linux-installation-apt-repo.html
 .. _PostgreSQL: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-postgresql-on-ubuntu-20-04
 .. _redis: https://blog.programster.org/debian-8-install-redis-server/
 .. _ufw: https://en.wikipedia.org/wiki/Uncomplicated_Firewall

doc/admin/maintainance.rst

@@ -17,11 +17,11 @@ Backups
 There are essentially two things which you should create backups of:
 
 Database
-    Your SQL database (MySQL or PostgreSQL). This is critical and you should **absolutely
-    always create automatic backups of your database**. There are tons of tutorials on the
-    internet on how to do this, and the exact process depends on the choice of your database.
-    For MySQL, see ``mysqldump`` and for PostgreSQL, see the ``pg_dump`` tool. You probably
-    want to create a cronjob that does the backups for you on a regular schedule.
+    Your SQL database. This is critical and you should **absolutely always create automatic
+    backups of your database**. There are tons of tutorials on the internet on how to do this,
+    and the exact process depends on the choice of your database. For PostgreSQL, see the
+    ``pg_dump`` tool. You probably want to create a cronjob that does the backups for you on a
+    regular schedule.
 
 Data directory
     The data directory of your pretix configuration might contain some things that you should

doc/admin/mysql2postgres.rst

@@ -0,0 +1,156 @@
+.. highlight:: none
+
+Migrating from MySQL/MariaDB to PostgreSQL
+==========================================
+
+Our recommended database for all production installations is PostgreSQL. Support for MySQL/MariaDB will be removed in
+pretix 5.0.
+
+In order to follow this guide, your pretix installation needs to be a version that fully supports MySQL/MariaDB. If you
+already upgraded to pretix 5.0, downgrade back to the last 4.x release using ``pip``.
+
+.. note:: We have tested this guide carefully, but we can't assume any liability for its correctness. The data loss
+          risk should be low as long as pretix is not running while you do the migration. If you are a pretix Enterprise
+          customer, feel free to reach out in advance if you want us to support you along the way.
+
+Update database schema
+----------------------
+
+Before you start, make sure your database schema is up to date::
+
+    # sudo -u pretix -s
+    $ source /var/pretix/venv/bin/activate
+    (venv)$ python -m pretix migrate
+
+Install PostgreSQL
+------------------
+
+Now, install and set up a PostgreSQL server. For a local installation on Debian or Ubuntu, use::
+
+    # apt install postgresql
+
+Having the database server installed, we still need a database and a database user. We can create these with any kind
+of database managing tool or directly on our database's shell. Please make sure that UTF8 is used as encoding for the
+best compatibility. You can check this with the following command::
+
+    # sudo -u postgres psql -c 'SHOW SERVER_ENCODING'
+
+Without Docker
+""""""""""""""
+
+For our standard manual installation, create the database and user like this::
+
+    # sudo -u postgres createuser pretix
+    # sudo -u postgres createdb -O pretix pretix
+
+With Docker
+"""""""""""
+
+For our standard docker installation, create the database and user like this::
+
+    # sudo -u postgres createuser -P pretix
+    # sudo -u postgres createdb -O pretix pretix
+
+Make sure that your database listens on the network. If PostgreSQL on the same same host as docker, but not inside a docker container, we recommend that you just listen on the Docker interface by changing the following line in ``/etc/postgresql/<version>/main/postgresql.conf``::
+
+    listen_addresses = 'localhost,172.17.0.1'
+
+You also need to add a new line to ``/etc/postgresql/<version>/main/pg_hba.conf`` to allow network connections to this user and database::
+
+    host    pretix          pretix          172.17.0.1/16           md5
+
+Restart PostgreSQL after you changed these files::
+
+    # systemctl restart postgresql
+
+If you have a firewall running, you should also make sure that port 5432 is reachable from the ``172.17.0.1/16`` subnet.
+
+Of course, instead of all this you can also run a PostgreSQL docker container and link it to the pretix container.
+
+Stop pretix
+-----------
+
+To prevent any more changes to your data, stop pretix from running::
+
+    # systemctl stop pretix-web pretix-worker
+
+Change configuration
+--------------------
+
+Change the database configuration in your ``/etc/pretix/pretix.cfg`` file::
+
+    [database]
+    backend=postgresql
+    name=pretix
+    user=pretix
+    password=  ; only required for docker or remote database, can be kept empty for local auth
+    host=      ; set to 172.17.0.1 in docker setup, keep empty for local auth
+
+
+Create database schema
+-----------------------
+
+To create the schema in your new PostgreSQL database, use the following commands::
+
+    # sudo -u pretix -s
+    $ source /var/pretix/venv/bin/activate
+    (venv)$ python -m pretix migrate
+
+
+Migrate your data
+-----------------
+
+Install ``pgloader``::
+
+    # apt install pgloader
+
+.. note::
+
+   If you are using Ubuntu 20.04, the ``pgloader`` version from the repositories seems to be incompatible with PostgreSQL
+   12+. You can install ``pgloader`` from the `PostgreSQL repositories`_ instead.
+   See also `this discussion <https://github.com/pretix/pretix/issues/3090>`_.
+
+Create a new file ``/tmp/pretix.load``, replacing the MySQL and PostgreSQL connection strings with the correct user names, passwords, and/or database names::
+
+    LOAD DATABASE
+        FROM mysql://pretix:password@localhost/pretix  -- replace with mysql://username:password@hostname/dbname
+        INTO postgresql:///pretix                      -- replace with dbname
+
+    WITH data only, include no drop, truncate, disable triggers,
+         create no indexes, drop indexes, reset sequences
+
+    ALTER SCHEMA 'pretix' RENAME TO 'public'           -- replace pretix with the name of the MySQL database
+
+    ALTER TABLE NAMES MATCHING ~/.*/
+        SET SCHEMA 'public'
+
+    SET timezone TO '+00:00'
+
+    SET PostgreSQL PARAMETERS
+         maintenance_work_mem to '128MB',
+         work_mem to '12MB';
+
+Then, run::
+
+    # sudo -u postgres pgloader /tmp/pretix.load
+
+The output should end with a table summarizing the results for every table. You can ignore warnings about type casts
+and missing constraints.
+
+Afterwards, delete the file again::
+
+    # rm -rf /tmp/pretix.load
+
+Start pretix
+------------
+
+Now, restart pretix. Maybe stop your MySQL server as a verification step that you are no longer using it::
+
+    # systemctl stop mariadb
+    # systemctl start pretix-web pretix-worker
+
+And you're done! After you've verified everything has been copied correctly, you can delete the old MySQL database.
+
+.. note:: Don't forget to update your backup process to back up your PostgreSQL database instead of your MySQL database now.
+
+.. _PostgreSQL repositories: https://wiki.postgresql.org/wiki/Apt

doc/admin/scaling.rst

@@ -42,7 +42,7 @@ A pretix installation usually consists of the following components which run per
 
 * ``pretix-worker`` is a Celery-based application that processes tasks that should be run asynchronously outside of the web application process.
 
-* A **SQL database** keeps all the important data and processes the actual transactions. We recommend using PostgreSQL, but MySQL/MariaDB works as well.
+* A **PostgreSQL database** keeps all the important data and processes the actual transactions.
 
 * A **web server** that terminates TLS and HTTP connections and forwards them to ``pretix-web``. In some cases, e.g. when serving static files, the web servers might return a response directly. We recommend using ``nginx``.
 
@@ -74,7 +74,7 @@ We recommend reading up on tuning your web server for high concurrency. For ngin
 processes and the number of connections each worker process accepts. Double-check that TLS session caching works, because TLS
 handshakes can get really expensive.
 
-During a traffic peak, your web server will be able to make us of more CPU resources, while memory usage will stay comparatively low,
+During a traffic peak, your web server will be able to make use of more CPU resources, while memory usage will stay comparatively low,
 so if you invest in more hardware here, invest in more and faster CPU cores.
 
 Make sure that pretix' static files (such as CSS and JavaScript assets) as well as user-uploaded media files (event logos, etc)

doc/api/fundamentals.rst

@@ -48,10 +48,11 @@ Possible permissions are:
 Compatibility
 -------------
 
-We currently see pretix' API as a beta-stage feature. We therefore do not give any guarantees
-for compatibility between feature releases of pretix (such as 1.5 and 1.6). However, as always,
-we try not to break things when we don't need to. Any backwards-incompatible changes will be
-prominently noted in the release notes.
+We try to avoid any breaking changes to our API to avoid hassle on your end. If possible, we'll
+build new features in a way that keeps all pre-existing API usage unchanged. In some cases,
+this might not be possible or only possible with restrictions. In these case, any
+backwards-incompatible changes will be prominently noted in the "Changes to the REST API"
+section of our release notes. If possible, we will announce them multiple releases in advance.
 
 We treat the following types of changes as *backwards-compatible* so we ask you to make sure
 that your clients can deal with them properly:
@@ -60,6 +61,7 @@ that your clients can deal with them properly:
 * Support of new HTTP methods for a given API endpoint
 * Support of new query parameters for a given API endpoint
 * New fields contained in API responses
+* New possible values of enumeration-like fields
 * Response body structure or message texts on failed requests (``4xx``, ``5xx`` response codes)
 
 We treat the following types of changes as *backwards-incompatible*:
@@ -190,6 +192,9 @@ Relative date         *either* String in ISO 8601  ``"2017-12-27"``,
 File                  URL in responses, ``file:``  ``"https://…"``, ``"file:…"``
                       specifiers in requests
                       (see below).
+Date range            *either* two dates separated ``2022-03-18/2022-03-23``, ``2022-03-18/``,
+                      by ``/`` *or* the name of a  ``/2022-03-23``, ``week_this``, ``week_next``,
+                      defined range.               ``month_this``
 ===================== ============================ ===================================
 
 Query parameters

doc/api/oauth.rst

@@ -107,9 +107,9 @@ You can supply a valid access token as a ``Bearer``-type token in the ``Authoriz
 .. sourcecode:: http
    :emphasize-lines: 3
 
-       GET /api/v1/organizers/ HTTP/1.1
-       Host: pretix.eu
-       Authorization: Bearer i3ytqTSRWsKp16fqjekHXa4tdM4qNC
+   GET /api/v1/organizers/ HTTP/1.1
+   Host: pretix.eu
+   Authorization: Bearer i3ytqTSRWsKp16fqjekHXa4tdM4qNC
 
 Refreshing an access token
 --------------------------

doc/api/resources/checkin.rst

@@ -1,4 +1,4 @@
-.. spelling:: checkin
+.. spelling:word-list:: checkin
 
 .. _rest-checkin:
 
@@ -203,6 +203,8 @@ Checking a ticket in
 
    * ``invalid`` - Ticket is not known.
    * ``unpaid`` - Ticket is not paid for.
+   * ``blocked`` - Ticket has been blocked.
+   * ``invalid_time`` - Ticket is not valid at this time.
    * ``canceled`` – Ticket is canceled or expired.
    * ``already_redeemed`` - Ticket already has been redeemed.
    * ``product`` - Tickets with this product may not be scanned at this device.

doc/api/resources/checkinlists.rst

@@ -1,4 +1,4 @@
-.. spelling:: checkin
+.. spelling:word-list:: checkin
 
 .. _rest-checkinlists:
 
@@ -98,6 +98,8 @@ Endpoints
    :query string ends_after: Exclude all check-in lists attached to a sub-event that is already in the past at the given time.
    :query string expand: Expand a field into a full object. Currently only ``subevent`` is supported. Can be passed multiple times.
    :query string exclude: Exclude a field from the output, e.g. ``checkin_count``. Can be used as a performance optimization. Can be passed multiple times.
+   :query string ordering: Manually set the ordering of results. Valid fields to be used are ``id``, ``name``, and ``subevent__date_from``,
+                           Default: ``subevent__date_from,name``
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
    :statuscode 200: no error
@@ -362,7 +364,7 @@ Endpoints
    Stores a failed check-in. Only necessary for statistical purposes if you perform scan validation offline.
 
    :<json boolean error_reason: One of ``canceled``, ``invalid``, ``unpaid``, ``product``, ``rules``, ``revoked``,
-                                ``incomplete``, ``already_redeemed``, or ``error``. Required.
+                                ``incomplete``, ``already_redeemed``, ``blocked``, ``invalid_time``, or ``error``. Required.
    :<json raw_barcode: The raw barcode you scanned. Required.
    :<json datetime: Date and time of the scan. Optional.
    :<json type: Type of scan, defaults to ``"entry"``.
@@ -741,6 +743,8 @@ Order position endpoints
 
    * ``invalid`` - Ticket code not known.
    * ``unpaid`` - Ticket is not paid for.
+   * ``blocked`` - Ticket has been blocked.
+   * ``invalid_time`` - Ticket is not valid at this time.
    * ``canceled`` – Ticket is canceled or expired. This reason is only sent when your request sets.
      ``canceled_supported`` to ``true``, otherwise these orders return ``unpaid``.
    * ``already_redeemed`` - Ticket already has been redeemed.

doc/api/resources/devices.rst

@@ -1,4 +1,4 @@
-.. spelling:: fullname
+.. spelling:word-list:: fullname
 
 .. _`rest-devices`:
 

doc/api/resources/events.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    geo
    lat
@@ -49,6 +49,7 @@ valid_keys                            object                     Cryptographic k
                                                                  only contained in detail views. Value can be cached.
 sales_channels                        list                       A list of sales channels this event is available for
                                                                  sale on.
+public_url                            string                     The public, customer-facing URL of the event (read-only).
 ===================================== ========================== =======================================================
 
 
@@ -65,6 +66,10 @@ Endpoints
 
     The ``search`` query parameter has been added to filter events by their slug, name, or location in any language.
 
+.. versionchanged:: 4.17
+
+    The ``public_url`` field has been added.
+
 .. http:get:: /api/v1/organizers/(organizer)/events/
 
    Returns a list of all events within a given organizer the authenticated user/token has access to.
@@ -123,7 +128,8 @@ Endpoints
               "web",
               "pretixpos",
               "resellers"
-            ]
+            ],
+            "public_url": "https://pretix.eu/bigevents/sampleconf/"
           }
         ]
       }
@@ -211,7 +217,8 @@ Endpoints
           "web",
           "pretixpos",
           "resellers"
-        ]
+        ],
+        "public_url": "https://pretix.eu/bigevents/sampleconf/"
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch
@@ -307,7 +314,8 @@ Endpoints
           "web",
           "pretixpos",
           "resellers"
-        ]
+        ],
+        "public_url": "https://pretix.eu/bigevents/sampleconf/"
       }
 
    :param organizer: The ``slug`` field of the organizer of the event to create.
@@ -411,7 +419,8 @@ Endpoints
           "web",
           "pretixpos",
           "resellers"
-        ]
+        ],
+        "public_url": "https://pretix.eu/bigevents/sampleconf/"
       }
 
    :param organizer: The ``slug`` field of the organizer of the event to create.
@@ -485,7 +494,8 @@ Endpoints
           "web",
           "pretixpos",
           "resellers"
-        ]
+        ],
+        "public_url": "https://pretix.eu/bigevents/sampleconf/"
       }
 
    :param organizer: The ``slug`` field of the organizer of the event to update

doc/api/resources/exporters.rst

@@ -1,4 +1,4 @@
-.. spelling:: checkin
+.. spelling:word-list:: checkin
 
 Data exporters
 ==============

doc/api/resources/invoices.rst

@@ -42,6 +42,7 @@ introductory_text                     string                     Text to be prin
 additional_text                       string                     Text to be printed below the product list
 payment_provider_text                 string                     Text to be printed below the product list with
                                                                  payment information
+payment_provider_stamp                string                     Short text to be visibly printed to indicate payment status
 footer_text                           string                     Text to be printed in the page footer area
 lines                                 list of objects            The actual invoice contents
 ├ position                            integer                    Number of the line within an invoice.
@@ -178,6 +179,7 @@ Endpoints
             "internal_reference": "",
             "additional_text": "We are looking forward to see you on our conference!",
             "payment_provider_text": "Please transfer the money to our account ABC…",
+            "payment_provider_stamp": null,
             "footer_text": "Big Events LLC - Registration No. 123456 - VAT ID: EU0987654321",
             "lines": [
               {
@@ -268,6 +270,7 @@ Endpoints
         "internal_reference": "",
         "additional_text": "We are looking forward to see you on our conference!",
         "payment_provider_text": "Please transfer the money to our account ABC…",
+        "payment_provider_stamp": null,
         "footer_text": "Big Events LLC - Registration No. 123456 - VAT ID: EU0987654321",
         "lines": [
           {

doc/api/resources/item_variations.rst

@@ -24,6 +24,9 @@ active                                boolean                    If ``false``, t
 description                           multi-lingual string       A public description of the variation. May contain
                                                                  Markdown syntax or can be ``null``.
 position                              integer                    An integer, used for sorting
+checkin_attention                     boolean                    If ``true``, the check-in app should show a warning
+                                                                 that this ticket requires special attention if such
+                                                                 a variation is being scanned.
 require_approval                      boolean                    If ``true``, orders with this variation will need to be
                                                                  approved by the event organizer before they can be
                                                                  paid.
@@ -48,7 +51,7 @@ meta_data                             object                     Values set for
 
 .. versionchanged:: 4.16
 
-   The ``meta_data`` attribute has been added.
+   The ``meta_data`` and ``checkin_attention`` attributes have been added.
 
 Endpoints
 ---------
@@ -84,6 +87,7 @@ Endpoints
               "en": "S"
             },
             "active": true,
+            "checkin_attention": false,
             "require_approval": false,
             "require_membership": false,
             "require_membership_hidden": false,
@@ -107,6 +111,7 @@ Endpoints
               "en": "L"
             },
             "active": true,
+            "checkin_attention": false,
             "require_approval": false,
             "require_membership": false,
             "require_membership_hidden": false,
@@ -159,6 +164,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": true,
+        "checkin_attention": false,
         "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
@@ -197,6 +203,7 @@ Endpoints
         "value": {"en": "Student"},
         "default_price": "10.00",
         "active": true,
+        "checkin_attention": false,
         "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
@@ -225,6 +232,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": true,
+        "checkin_attention": false,
         "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
@@ -284,6 +292,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": false,
+        "checkin_attention": false,
         "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,

doc/api/resources/items.rst

@@ -11,141 +11,165 @@ The item resource contains the following public fields:
 
 .. rst-class:: rest-resource-table
 
-===================================== ========================== =======================================================
-Field                                 Type                       Description
-===================================== ========================== =======================================================
-id                                    integer                    Internal ID of the item
-name                                  multi-lingual string       The item's visible name
-internal_name                         string                     An optional name that is only used in the backend
-default_price                         money (string)             The item price that is applied if the price is not
-                                                                 overwritten by variations or other options.
-category                              integer                    The ID of the category this item belongs to
-                                                                 (or ``null``).
-active                                boolean                    If ``false``, the item is hidden from all public lists
-                                                                 and will not be sold.
-description                           multi-lingual string       A public description of the item. May contain Markdown
-                                                                 syntax or can be ``null``.
-free_price                            boolean                    If ``true``, customers can change the price at which
-                                                                 they buy the product (however, the price can't be set
-                                                                 lower than the price defined by ``default_price`` or
-                                                                 otherwise).
-tax_rate                              decimal (string)           The VAT rate to be applied for this item (read-only,
-                                                                 set through ``tax_rule``).
-tax_rule                              integer                    The internal ID of the applied tax rule (or ``null``).
-admission                             boolean                    ``true`` for items that grant admission to the event
-                                                                 (such as primary tickets) and ``false`` for others
-                                                                 (such as add-ons or merchandise).
-position                              integer                    An integer, used for sorting
-picture                               file                       A product picture to be displayed in the shop
-                                                                 (can be ``null``).
-sales_channels                        list of strings            Sales channels this product is available on, such as
-                                                                 ``"web"`` or ``"resellers"``. Defaults to ``["web"]``.
-available_from                        datetime                   The first date time at which this item can be bought
-                                                                 (or ``null``).
-available_until                       datetime                   The last date time at which this item can be bought
-                                                                 (or ``null``).
-hidden_if_available                   integer                    The internal ID of a quota object, or ``null``. If
-                                                                 set, this item won't be shown publicly as long as this
-                                                                 quota is available.
-require_voucher                       boolean                    If ``true``, this item can only be bought using a
-                                                                 voucher that is specifically assigned to this item.
-hide_without_voucher                  boolean                    If ``true``, this item is only shown during the voucher
-                                                                 redemption process, but not in the normal shop
-                                                                 frontend.
-allow_cancel                          boolean                    If ``false``, customers cannot cancel orders containing
-                                                                 this item.
-min_per_order                         integer                    This product can only be bought if it is included at
-                                                                 least this many times in the order (or ``null`` for no
-                                                                 limitation).
-max_per_order                         integer                    This product can only be bought if it is included at
-                                                                 most this many times in the order (or ``null`` for no
-                                                                 limitation).
-checkin_attention                     boolean                    If ``true``, the check-in app should show a warning
-                                                                 that this ticket requires special attention if such
-                                                                 a product is being scanned.
-original_price                        money (string)             An original price, shown for comparison, not used
-                                                                 for price calculations (or ``null``).
-require_approval                      boolean                    If ``true``, orders with this product will need to be
-                                                                 approved by the event organizer before they can be
-                                                                 paid.
-require_bundling                      boolean                    If ``true``, this item is only available as part of bundles.
-require_membership                    boolean                    If ``true``, booking this item requires an active membership.
-require_membership_hidden             boolean                    If ``true`` and ``require_membership`` is set, this product will
-                                                                 be hidden from users without a valid membership.
-require_membership_types              list of integers           Internal IDs of membership types valid if ``require_membership`` is ``true``
-grant_membership_type                 integer                    If set to the internal ID of a membership type, purchasing this item will
-                                                                 create a membership of the given type.
-grant_membership_duration_like_event  boolean                    If ``true``, the membership created through ``grant_membership_type`` will derive
-                                                                 its term from ``date_from`` to ``date_to`` of the purchased (sub)event.
-grant_membership_duration_days        integer                    If ``grant_membership_duration_like_event`` is ``false``, this sets the number of
-                                                                 days for the membership.
-grant_membership_duration_months      integer                    If ``grant_membership_duration_like_event`` is ``false``, this sets the number of
-                                                                 calendar months for the membership.
-generate_tickets                      boolean                    If ``false``, tickets are never generated for this
-                                                                 product, regardless of other settings. If ``true``,
-                                                                 tickets are generated even if this is a
-                                                                 non-admission or add-on product, regardless of event
-                                                                 settings. If this is ``null``, regular ticketing
-                                                                 rules apply.
-allow_waitinglist                     boolean                    If ``false``, no waiting list will be shown for this
-                                                                 product when it is sold out.
-issue_giftcard                        boolean                    If ``true``, buying this product will yield a gift card.
-show_quota_left                       boolean                    Publicly show how many tickets are still available.
-                                                                 If this is ``null``, the event default is used.
-has_variations                        boolean                    Shows whether or not this item has variations.
-variations                            list of objects            A list with one object for each variation of this item.
-                                                                 Can be empty. Only writable during creation,
-                                                                 use separate endpoint to modify this later.
-├ id                                  integer                    Internal ID of the variation
-├ value                               multi-lingual string       The "name" of the variation
-├ default_price                       money (string)             The price set directly for this variation or ``null``
-├ price                               money (string)             The price used for this variation. This is either the
-                                                                 same as ``default_price`` if that value is set or equal
-                                                                 to the item's ``default_price``.
-├ original_price                      money (string)             An original price, shown for comparison, not used
-                                                                 for price calculations (or ``null``).
-├ active                              boolean                    If ``false``, this variation will not be sold or shown.
-├ description                         multi-lingual string       A public description of the variation. May contain
-├ require_membership                  boolean                    If ``true``, booking this variation requires an active membership.
-├ require_membership_hidden           boolean                    If ``true`` and ``require_membership`` is set, this variation will
-                                                                 be hidden from users without a valid membership.
-├ require_membership_types            list of integers           Internal IDs of membership types valid if ``require_membership`` is ``true``
-                                                                 Markdown syntax or can be ``null``.
-├ sales_channels                      list of strings            Sales channels this variation is available on, such as
-                                                                 ``"web"`` or ``"resellers"``. Defaults to all existing sales channels.
-                                                                 The item-level list takes precedence, i.e. a sales
-                                                                 channel needs to be on both lists for the item to be
-                                                                 available.
-├ available_from                      datetime                   The first date time at which this variation can be bought
-                                                                 (or ``null``).
-├ available_until                     datetime                   The last date time at which this variation can be bought
-                                                                 (or ``null``).
-├ hide_without_voucher                boolean                    If ``true``, this variation is only shown during the voucher
-                                                                 redemption process, but not in the normal shop
-                                                                 frontend.
-├ meta_data                           object                     Values set for event-specific meta data parameters.
-└ position                            integer                    An integer, used for sorting
-addons                                list of objects            Definition of add-ons that can be chosen for this item.
-                                                                 Only writable during creation,
-                                                                 use separate endpoint to modify this later.
-├ addon_category                      integer                    Internal ID of the item category the add-on can be
-                                                                 chosen from.
-├ min_count                           integer                    The minimal number of add-ons that need to be chosen.
-├ max_count                           integer                    The maximal number of add-ons that can be chosen.
-├ position                            integer                    An integer, used for sorting
-├ multi_allowed                       boolean                    Adding the same item multiple times is allowed
-└ price_included                      boolean                    Adding this add-on to the item is free
-bundles                               list of objects            Definition of bundles that are included in this item.
-                                                                 Only writable during creation,
-                                                                 use separate endpoint to modify this later.
-├ bundled_item                        integer                    Internal ID of the item that is included.
-├ bundled_variation                   integer                    Internal ID of the variation of the item (or ``null``).
-├ count                               integer                    Number of items included
-└ designated_price                    money (string)             Designated price of the bundled product. This will be
-                                                                 used to split the price of the base item e.g. for mixed
-                                                                 taxation. This is not added to the price.
-meta_data                             object                     Values set for event-specific meta data parameters.
-===================================== ========================== =======================================================
+======================================= ========================== =======================================================
+Field                                   Type                       Description
+======================================= ========================== =======================================================
+id                                      integer                    Internal ID of the item
+name                                    multi-lingual string       The item's visible name
+internal_name                           string                     An optional name that is only used in the backend
+default_price                           money (string)             The item price that is applied if the price is not
+                                                                   overwritten by variations or other options.
+category                                integer                    The ID of the category this item belongs to
+                                                                   (or ``null``).
+active                                  boolean                    If ``false``, the item is hidden from all public lists
+                                                                   and will not be sold.
+description                             multi-lingual string       A public description of the item. May contain Markdown
+                                                                   syntax or can be ``null``.
+free_price                              boolean                    If ``true``, customers can change the price at which
+                                                                   they buy the product (however, the price can't be set
+                                                                   lower than the price defined by ``default_price`` or
+                                                                   otherwise).
+tax_rate                                decimal (string)           The VAT rate to be applied for this item (read-only,
+                                                                   set through ``tax_rule``).
+tax_rule                                integer                    The internal ID of the applied tax rule (or ``null``).
+admission                               boolean                    ``true`` for items that grant admission to the event
+                                                                   (such as primary tickets) and ``false`` for others
+                                                                   (such as add-ons or merchandise).
+personalized                            boolean                    ``true`` for items that require personalization according
+                                                                   to event settings. Only affects system-level fields, not
+                                                                   custom questions. Currently only allowed for products with
+                                                                   ``admission`` set to ``true``. For backwards compatibility,
+                                                                   when creating new items and this field is not given, it defaults
+                                                                   to the same value as ``admission``.
+position                                integer                    An integer, used for sorting
+picture                                 file                       A product picture to be displayed in the shop
+                                                                   (can be ``null``).
+sales_channels                          list of strings            Sales channels this product is available on, such as
+                                                                   ``"web"`` or ``"resellers"``. Defaults to ``["web"]``.
+available_from                          datetime                   The first date time at which this item can be bought
+                                                                   (or ``null``).
+available_until                         datetime                   The last date time at which this item can be bought
+                                                                   (or ``null``).
+hidden_if_available                     integer                    The internal ID of a quota object, or ``null``. If
+                                                                   set, this item won't be shown publicly as long as this
+                                                                   quota is available.
+require_voucher                         boolean                    If ``true``, this item can only be bought using a
+                                                                   voucher that is specifically assigned to this item.
+hide_without_voucher                    boolean                    If ``true``, this item is only shown during the voucher
+                                                                   redemption process, but not in the normal shop
+                                                                   frontend.
+allow_cancel                            boolean                    If ``false``, customers cannot cancel orders containing
+                                                                   this item.
+min_per_order                           integer                    This product can only be bought if it is included at
+                                                                   least this many times in the order (or ``null`` for no
+                                                                   limitation).
+max_per_order                           integer                    This product can only be bought if it is included at
+                                                                   most this many times in the order (or ``null`` for no
+                                                                   limitation).
+checkin_attention                       boolean                    If ``true``, the check-in app should show a warning
+                                                                   that this ticket requires special attention if such
+                                                                   a product is being scanned.
+original_price                          money (string)             An original price, shown for comparison, not used
+                                                                   for price calculations (or ``null``).
+require_approval                        boolean                    If ``true``, orders with this product will need to be
+                                                                   approved by the event organizer before they can be
+                                                                   paid.
+require_bundling                        boolean                    If ``true``, this item is only available as part of bundles.
+require_membership                      boolean                    If ``true``, booking this item requires an active membership.
+require_membership_hidden               boolean                    If ``true`` and ``require_membership`` is set, this product will
+                                                                   be hidden from users without a valid membership.
+require_membership_types                list of integers           Internal IDs of membership types valid if ``require_membership`` is ``true``
+grant_membership_type                   integer                    If set to the internal ID of a membership type, purchasing this item will
+                                                                   create a membership of the given type.
+grant_membership_duration_like_event    boolean                    If ``true``, the membership created through ``grant_membership_type`` will derive
+                                                                   its term from ``date_from`` to ``date_to`` of the purchased (sub)event.
+grant_membership_duration_days          integer                    If ``grant_membership_duration_like_event`` is ``false``, this sets the number of
+                                                                   days for the membership.
+grant_membership_duration_months        integer                    If ``grant_membership_duration_like_event`` is ``false``, this sets the number of
+                                                                   calendar months for the membership.
+validity_mode                           string                     If ``null``, tickets generated for this product do not
+                                                                   have special validity behavior, but follow event configuration and
+                                                                   can be limited e.g. through check-in rules. Other values are ``"fixed"`` and ``"dynamic"``
+validity_fixed_from                     datetime                   If ``validity_mode`` is ``"fixed"``, this is the start of validity for issued tickets.
+validity_fixed_until                    datetime                   If ``validity_mode`` is ``"fixed"``, this is the end of validity for issued tickets.
+validity_dynamic_duration_minutes       integer                    If ``validity_mode`` is ``"dynamic"``, this is the "minutes" component of the ticket validity duration.
+validity_dynamic_duration_hours         integer                    If ``validity_mode`` is ``"dynamic"``, this is the "hours" component of the ticket validity duration.
+validity_dynamic_duration_days          integer                    If ``validity_mode`` is ``"dynamic"``, this is the "days" component of the ticket validity duration.
+validity_dynamic_duration_months        integer                    If ``validity_mode`` is ``"dynamic"``, this is the "months" component of the ticket validity duration.
+validity_dynamic_start_choice           boolean                    If ``validity_mode`` is ``"dynamic"`` and this is ``true``, customers can choose the start of validity.
+validity_dynamic_start_choice_day_limit boolean                    If ``validity_mode`` is ``"dynamic"`` and ``validity_dynamic_start_choice`` is ``true``,
+                                                                   this is the maximum number of days the start can be in the future.
+generate_tickets                        boolean                    If ``false``, tickets are never generated for this
+                                                                   product, regardless of other settings. If ``true``,
+                                                                   tickets are generated even if this is a
+                                                                   non-admission or add-on product, regardless of event
+                                                                   settings. If this is ``null``, regular ticketing
+                                                                   rules apply.
+allow_waitinglist                       boolean                    If ``false``, no waiting list will be shown for this
+                                                                   product when it is sold out.
+issue_giftcard                          boolean                    If ``true``, buying this product will yield a gift card.
+show_quota_left                         boolean                    Publicly show how many tickets are still available.
+                                                                   If this is ``null``, the event default is used.
+has_variations                          boolean                    Shows whether or not this item has variations.
+variations                              list of objects            A list with one object for each variation of this item.
+                                                                   Can be empty. Only writable during creation,
+                                                                   use separate endpoint to modify this later.
+├ id                                    integer                    Internal ID of the variation
+├ value                                 multi-lingual string       The "name" of the variation
+├ default_price                         money (string)             The price set directly for this variation or ``null``
+├ price                                 money (string)             The price used for this variation. This is either the
+                                                                   same as ``default_price`` if that value is set or equal
+                                                                   to the item's ``default_price``.
+├ original_price                        money (string)             An original price, shown for comparison, not used
+                                                                   for price calculations (or ``null``).
+├ active                                boolean                    If ``false``, this variation will not be sold or shown.
+├ description                           multi-lingual string       A public description of the variation. May contain
+├ checkin_attention                     boolean                    If ``true``, the check-in app should show a warning
+                                                                   that this ticket requires special attention if such
+                                                                   a variation is being scanned.
+├ require_approval                      boolean                    If ``true``, orders with this variation will need to be
+                                                                   approved by the event organizer before they can be
+                                                                   paid.
+├ require_membership                    boolean                    If ``true``, booking this variation requires an active membership.
+├ require_membership_hidden             boolean                    If ``true`` and ``require_membership`` is set, this variation will
+                                                                   be hidden from users without a valid membership.
+├ require_membership_types              list of integers           Internal IDs of membership types valid if ``require_membership`` is ``true``
+                                                                   Markdown syntax or can be ``null``.
+├ sales_channels                        list of strings            Sales channels this variation is available on, such as
+                                                                   ``"web"`` or ``"resellers"``. Defaults to all existing sales channels.
+                                                                   The item-level list takes precedence, i.e. a sales
+                                                                   channel needs to be on both lists for the item to be
+                                                                   available.
+├ available_from                        datetime                   The first date time at which this variation can be bought
+                                                                   (or ``null``).
+├ available_until                       datetime                   The last date time at which this variation can be bought
+                                                                   (or ``null``).
+├ hide_without_voucher                  boolean                    If ``true``, this variation is only shown during the voucher
+                                                                   redemption process, but not in the normal shop
+                                                                   frontend.
+├ meta_data                             object                     Values set for event-specific meta data parameters.
+└ position                              integer                    An integer, used for sorting
+addons                                  list of objects            Definition of add-ons that can be chosen for this item.
+                                                                   Only writable during creation,
+                                                                   use separate endpoint to modify this later.
+├ addon_category                        integer                    Internal ID of the item category the add-on can be
+                                                                   chosen from.
+├ min_count                             integer                    The minimal number of add-ons that need to be chosen.
+├ max_count                             integer                    The maximal number of add-ons that can be chosen.
+├ position                              integer                    An integer, used for sorting
+├ multi_allowed                         boolean                    Adding the same item multiple times is allowed
+└ price_included                        boolean                    Adding this add-on to the item is free
+bundles                                 list of objects            Definition of bundles that are included in this item.
+                                                                   Only writable during creation,
+                                                                   use separate endpoint to modify this later.
+├ bundled_item                          integer                    Internal ID of the item that is included.
+├ bundled_variation                     integer                    Internal ID of the variation of the item (or ``null``).
+├ count                                 integer                    Number of items included
+└ designated_price                      money (string)             Designated price of the bundled product. This will be
+                                                                   used to split the price of the base item e.g. for mixed
+                                                                   taxation. This is not added to the price.
+meta_data                               object                     Values set for event-specific meta data parameters.
+======================================= ========================== =======================================================
 
 .. versionchanged:: 4.0
 
@@ -158,7 +182,12 @@ meta_data                             object                     Values set for
 
 .. versionchanged:: 4.16
 
-   The ``variations[x].meta_data`` attribute has been added.
+   The ``variations[x].meta_data`` and ``variations[x].checkin_attention`` attributes have been added.
+   The ``personalized`` attribute has been added.
+
+.. versionchanged:: 4.17
+
+   The ``validity_*`` attributes have been added.
 
 Notes
 -----
@@ -213,6 +242,7 @@ Endpoints
             "tax_rate": "0.00",
             "tax_rule": 1,
             "admission": false,
+            "personalized": false,
             "issue_giftcard": false,
             "meta_data": {},
             "position": 0,
@@ -238,6 +268,14 @@ Endpoints
             "grant_membership_duration_like_event": true,
             "grant_membership_duration_days": 0,
             "grant_membership_duration_months": 0,
+            "validity_fixed_from": null,
+            "validity_fixed_until": null,
+            "validity_dynamic_duration_minutes": null,
+            "validity_dynamic_duration_hours": null,
+            "validity_dynamic_duration_days": null,
+            "validity_dynamic_duration_months": null,
+            "validity_dynamic_start_choice": false,
+            "validity_dynamic_start_choice_day_limit": null,
             "variations": [
               {
                  "value": {"en": "Student"},
@@ -245,6 +283,8 @@ Endpoints
                  "price": "10.00",
                  "original_price": null,
                  "active": true,
+                 "checkin_attention": false,
+                 "require_approval": false,
                  "require_membership": false,
                  "require_membership_types": [],
                  "sales_channels": ["web"],
@@ -261,6 +301,8 @@ Endpoints
                  "price": "23.00",
                  "original_price": null,
                  "active": true,
+                 "checkin_attention": false,
+                 "require_approval": false,
                  "require_membership": false,
                  "require_membership_types": [],
                  "sales_channels": ["web"],
@@ -329,6 +371,7 @@ Endpoints
         "tax_rate": "0.00",
         "tax_rule": 1,
         "admission": false,
+        "personalized": false,
         "issue_giftcard": false,
         "meta_data": {},
         "position": 0,
@@ -354,6 +397,14 @@ Endpoints
         "grant_membership_duration_like_event": true,
         "grant_membership_duration_days": 0,
         "grant_membership_duration_months": 0,
+        "validity_fixed_from": null,
+        "validity_fixed_until": null,
+        "validity_dynamic_duration_minutes": null,
+        "validity_dynamic_duration_hours": null,
+        "validity_dynamic_duration_days": null,
+        "validity_dynamic_duration_months": null,
+        "validity_dynamic_start_choice": false,
+        "validity_dynamic_start_choice_day_limit": null,
         "variations": [
           {
              "value": {"en": "Student"},
@@ -361,6 +412,8 @@ Endpoints
              "price": "10.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "description": null,
@@ -377,6 +430,8 @@ Endpoints
              "price": "23.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -426,6 +481,7 @@ Endpoints
         "tax_rate": "0.00",
         "tax_rule": 1,
         "admission": false,
+        "personalized": false,
         "issue_giftcard": false,
         "meta_data": {},
         "position": 0,
@@ -450,6 +506,14 @@ Endpoints
         "grant_membership_duration_like_event": true,
         "grant_membership_duration_days": 0,
         "grant_membership_duration_months": 0,
+        "validity_fixed_from": null,
+        "validity_fixed_until": null,
+        "validity_dynamic_duration_minutes": null,
+        "validity_dynamic_duration_hours": null,
+        "validity_dynamic_duration_days": null,
+        "validity_dynamic_duration_months": null,
+        "validity_dynamic_start_choice": false,
+        "validity_dynamic_start_choice_day_limit": null,
         "variations": [
           {
              "value": {"en": "Student"},
@@ -457,6 +521,8 @@ Endpoints
              "price": "10.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -473,6 +539,8 @@ Endpoints
              "price": "23.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -510,6 +578,7 @@ Endpoints
         "tax_rate": "0.00",
         "tax_rule": 1,
         "admission": false,
+        "personalized": false,
         "issue_giftcard": false,
         "meta_data": {},
         "position": 0,
@@ -535,6 +604,14 @@ Endpoints
         "grant_membership_duration_like_event": true,
         "grant_membership_duration_days": 0,
         "grant_membership_duration_months": 0,
+        "validity_fixed_from": null,
+        "validity_fixed_until": null,
+        "validity_dynamic_duration_minutes": null,
+        "validity_dynamic_duration_hours": null,
+        "validity_dynamic_duration_days": null,
+        "validity_dynamic_duration_months": null,
+        "validity_dynamic_start_choice": false,
+        "validity_dynamic_start_choice_day_limit": null,
         "variations": [
           {
              "value": {"en": "Student"},
@@ -542,6 +619,8 @@ Endpoints
              "price": "10.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -558,6 +637,8 @@ Endpoints
              "price": "23.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -626,6 +707,7 @@ Endpoints
         "tax_rate": "0.00",
         "tax_rule": 1,
         "admission": false,
+        "personalized": false,
         "issue_giftcard": false,
         "meta_data": {},
         "position": 0,
@@ -651,6 +733,14 @@ Endpoints
         "grant_membership_duration_like_event": true,
         "grant_membership_duration_days": 0,
         "grant_membership_duration_months": 0,
+        "validity_fixed_from": null,
+        "validity_fixed_until": null,
+        "validity_dynamic_duration_minutes": null,
+        "validity_dynamic_duration_hours": null,
+        "validity_dynamic_duration_days": null,
+        "validity_dynamic_duration_months": null,
+        "validity_dynamic_start_choice": false,
+        "validity_dynamic_start_choice_day_limit": null,
         "variations": [
           {
              "value": {"en": "Student"},
@@ -658,6 +748,8 @@ Endpoints
              "price": "10.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],
@@ -674,6 +766,8 @@ Endpoints
              "price": "23.00",
              "original_price": null,
              "active": true,
+             "checkin_attention": false,
+             "require_approval": false,
              "require_membership": false,
              "require_membership_types": [],
              "sales_channels": ["web"],

doc/api/resources/orders.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    checkins
    pdf
@@ -91,6 +91,10 @@ require_approval                      boolean                    If ``true`` and
                                                                  needs approval by an organizer before it can
                                                                  continue. If ``true`` and the order is canceled,
                                                                  this order has been denied by the event organizer.
+valid_if_pending                      boolean                    If ``true`` and the order is pending, this order
+                                                                 is still treated like a paid order for most purposes,
+                                                                 such as check-in. This may be used e.g. for trusted
+                                                                 customers who only need to pay after the event.
 url                                   string                     The full URL to the order confirmation page
 payments                              list of objects            List of payment processes (see below)
 refunds                               list of objects            List of refund processes (see below)
@@ -122,6 +126,10 @@ last_modified                         datetime                   Last modificati
 
    The ``include`` query parameter has been added.
 
+.. versionchanged:: 4.16
+
+   The ``valid_if_pending`` attribute has been added.
+
 
 .. _order-position-resource:
 
@@ -159,6 +167,9 @@ secret                                string                     Secret code pri
 addon_to                              integer                    Internal ID of the position this position is an add-on for (or ``null``)
 subevent                              integer                    ID of the date inside an event series this position belongs to (or ``null``).
 discount                              integer                    ID of a discount that has been used during the creation of this position in some way (or ``null``).
+blocked                               list of strings            A list of strings, or ``null``. Whenever not ``null``, the ticket may not be used (e.g. for check-in).
+valid_from                            datetime                   The ticket will not be valid before this time. Can be ``null``.
+valid_until                           datetime                   The ticket will not be valid after this time. Can be ``null``.
 pseudonymization_id                   string                     A random ID, e.g. for use in lead scanning apps
 checkins                              list of objects            List of **successful** check-ins with this ticket
 ├ id                                  integer                    Internal ID of the check-in event
@@ -186,6 +197,10 @@ pdf_data                              object                     Data object req
                                                                  ``pdf_data=true`` query parameter to your request.
 ===================================== ========================== =======================================================
 
+.. versionchanged:: 4.16
+
+   The attributes ``blocked``, ``valid_from`` and ``valid_until`` have been added.
+
 .. _order-payment-resource:
 
 Order payment resource
@@ -294,6 +309,7 @@ List of all orders
             "custom_followup_at": null,
             "checkin_attention": false,
             "require_approval": false,
+            "valid_if_pending": false,
             "invoice_address": {
                 "last_modified": "2017-12-01T10:00:00Z",
                 "is_business": true,
@@ -336,6 +352,9 @@ List of all orders
                 "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
                 "addon_to": null,
                 "subevent": null,
+                "valid_from": null,
+                "valid_until": null,
+                "blocked": null,
                 "discount": null,
                 "pseudonymization_id": "MQLJvANO3B",
                 "seat": null,
@@ -467,6 +486,7 @@ Fetching individual orders
         "custom_followup_at": null,
         "checkin_attention": false,
         "require_approval": false,
+        "valid_if_pending": false,
         "invoice_address": {
             "last_modified": "2017-12-01T10:00:00Z",
             "company": "Sample company",
@@ -509,6 +529,9 @@ Fetching individual orders
             "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
             "addon_to": null,
             "subevent": null,
+            "valid_from": null,
+            "valid_until": null,
+            "blocked": null,
             "discount": null,
             "pseudonymization_id": "MQLJvANO3B",
             "seat": null,
@@ -640,6 +663,8 @@ Updating order fields
 
    * ``invoice_address`` (you always need to supply the full object, or ``null`` to delete the current address)
 
+   * ``valid_if_pending``
+
    **Example request**:
 
    .. sourcecode:: http
@@ -815,6 +840,7 @@ Creating orders
 
        * does not support or validate memberships
 
+
    You can supply the following fields of the resource:
 
    * ``code`` (optional) – Only ``A-Z`` and ``0-9``, but without ``O`` and ``1``.
@@ -845,6 +871,7 @@ Creating orders
    * ``custom_followup_at`` (optional)
    * ``checkin_attention`` (optional)
    * ``require_approval`` (optional)
+   * ``valid_if_pending`` (optional)
    * ``invoice_address`` (optional)
 
       * ``company``
@@ -880,6 +907,9 @@ Creating orders
       * ``secret`` (optional)
       * ``addon_to`` (optional, see below)
       * ``subevent`` (optional)
+      * ``valid_from`` (optional, if both ``valid_from`` and ``valid_until`` are **missing** (not ``null``) the availability will be computed from the given product)
+      * ``valid_until`` (optional, if both ``valid_from`` and ``valid_until`` are **missing** (not ``null``) the availability will be computed from the given product)
+      * ``requested_valid_from`` (optional, can be set **instead** of ``valid_from`` and ``valid_until`` to signal a user choice for the start time that may or may not be respected)
       * ``answers``
 
         * ``question``
@@ -950,7 +980,7 @@ Creating orders
           "street": "Sesam Street 12",
           "zipcode": "12345",
           "city": "Sample City",
-          "country": "UK",
+          "country": "GB",
           "state": "",
           "internal_reference": "",
           "vat_id": ""
@@ -1448,6 +1478,9 @@ List of all order positions
             "seat": null,
             "addon_to": null,
             "subevent": null,
+            "valid_from": null,
+            "valid_until": null,
+            "blocked": null,
             "checkins": [
               {
                 "list": 44,
@@ -1554,6 +1587,9 @@ Fetching individual positions
         "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
         "addon_to": null,
         "subevent": null,
+        "valid_from": null,
+        "valid_until": null,
+        "blocked": null,
         "discount": null,
         "pseudonymization_id": "MQLJvANO3B",
         "seat": null,
@@ -1659,6 +1695,10 @@ Manipulating individual positions
    The ``PATCH`` method now supports changing items, variations, subevents, seats, prices, and tax rules.
    The ``POST`` endpoint to add individual positions has been added.
 
+.. versionadded:: 4.16
+
+   The endpoints to manage blocks have been added.
+
 .. http:patch:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/
 
    Updates specific fields on an order position. Currently, only the following fields are supported:
@@ -1697,6 +1737,10 @@ Manipulating individual positions
 
    * ``tax_rule``
 
+   * ``valid_from``
+
+   * ``valid_until``
+
    Changing parameters such as ``item`` or ``price`` will **not** automatically trigger creation of a new invoice,
    you need to take care of that yourself.
 
@@ -1771,6 +1815,10 @@ Manipulating individual positions
      and ``option_identifiers`` will be ignored. As a special case, you can submit the magic value
      ``"file:keep"`` as the answer to a file question to keep the current value without re-uploading it.
 
+   * ``valid_from``
+
+   * ``valid_until``
+
    This will **not** automatically trigger creation of a new invoice, you need to take care of that yourself.
 
    **Example request**:
@@ -1834,6 +1882,82 @@ Manipulating individual positions
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
    :statuscode 404: The requested order position does not exist.
 
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/add_block/
+
+   Blocks an order position from being used. The block name either needs to be ``"admin"`` or start with ``"api:"``. It
+   may only contain letters, numbers, dots and underscores. ``"admin"`` represents the regular block that can be set
+   in the backend user interface.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/orderpositions/23/add_block/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+
+     {
+       "name": "api:block1"
+     }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      (Full order position resource, see above.)
+
+   :param organizer: The ``slug`` field of the organizer of the event
+   :param event: The ``slug`` field of the event
+   :param code: The ``id`` field of the order position to update
+
+   :statuscode 200: no error
+   :statuscode 400: The order position could not be updated due to invalid submitted data.
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to update this order position.
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/remove_block/
+
+   Unblocks an order position from being used. The block name either needs to be ``"admin"`` or start with ``"api:"``. It
+   may only contain letters, numbers, dots and underscores. ``"admin"`` represents the regular block that can be set
+   in the backend user interface. Blocks set by plugins cannot be lifted through this API.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/orderpositions/23/remove_block/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+
+     {
+       "name": "api:block1"
+     }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      (Full order position resource, see above.)
+
+   :param organizer: The ``slug`` field of the organizer of the event
+   :param event: The ``slug`` field of the event
+   :param code: The ``id`` field of the order position to update
+
+   :statuscode 200: no error
+   :statuscode 400: The order position could not be updated due to invalid submitted data.
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to update this order position.
+
 Changing order contents
 -----------------------
 
@@ -1852,7 +1976,7 @@ otherwise, such as splitting an order or changing fees.
 
    * ``patch_positions``: A list of objects with the two keys ``position`` specifying an order position ID and
      ``body`` specifying the desired changed values of the position (``item``, ``variation``, ``subevent``, ``seat``,
-     ``price``, ``tax_rule``).
+     ``price``, ``tax_rule``, ``valid_from``, ``valid_until``).
 
    * ``cancel_positions``: A list of objects with the single key ``position`` specifying an order position ID.
 
@@ -2541,3 +2665,57 @@ With some non-default ticket secret generation methods, a list of revoked ticket
    :statuscode 200: no error
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
+
+Blocked ticket secrets
+----------------------
+
+With some non-default ticket secret generation methods, a list of blocked ticket secrets is required for proper validation.
+This endpoint returns all secrets that are currently blocked **or have been blocked before and are now unblocked**, so
+be sure to check the ``blocked`` attribute for its actual value. The list is currently always ordered with the most
+recently updated ones first.
+
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/blockedsecrets/
+
+   Returns a list of all blocked or historically blocked secrets within a given event.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      GET /api/v1/organizers/bigevents/events/sampleconf/blockedsecrets/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+      X-Page-Generated: 2017-12-01T10:00:00Z
+
+      {
+        "count": 1,
+        "next": null,
+        "previous": null,
+        "results": [
+          {
+            "id": 1234,
+            "secret": "k24fiuwvu8kxz3y1",
+            "blocked": true,
+            "updated": "2017-12-01T10:00:00Z",
+          }
+        ]
+      }
+
+   :query integer page: The page number in case of a multi-page result set, default is 1
+   :query datetime updated_since: Only return records that have been updated since the given date.
+   :query boolean blocked: Only return blocked / non-blocked records.
+   :param organizer: The ``slug`` field of the organizer to fetch
+   :param event: The ``slug`` field of the event to fetch
+   :resheader X-Page-Generated: The server time at the beginning of the operation. If you're using this API to fetch
+                                differences, this is the value you want to use as ``updated_since`` in your next call.
+   :statuscode 200: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.

doc/api/resources/organizers.rst

@@ -17,12 +17,18 @@ Field                                 Type                       Description
 name                                  string                     The organizer's full name, i.e. the name of an
                                                                  organization or company.
 slug                                  string                     A short form of the name, used e.g. in URLs.
+public_url                            string                     The public, customer-facing URL of the organizer, where
+                                                                 the list of all events can be found (read-only).
 ===================================== ========================== =======================================================
 
 
 Endpoints
 ---------
 
+.. versionchanged:: 4.17
+
+    The ``public_url`` field has been added.
+
 .. http:get:: /api/v1/organizers/
 
    Returns a list of all organizers the authenticated user/token has access to.
@@ -51,6 +57,7 @@ Endpoints
           {
             "name": "Big Events LLC",
             "slug": "Big Events",
+            "public_url": "https://pretix.eu/bigevents/"
           }
         ]
       }
@@ -84,6 +91,7 @@ Endpoints
       {
         "name": "Big Events LLC",
         "slug": "Big Events",
+        "public_url": "https://pretix.eu/bigevents/"
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch

doc/api/resources/questions.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    checkin
    datetime

doc/api/resources/shredders.rst

@@ -1,4 +1,4 @@
-.. spelling:: checkin
+.. spelling:word-list:: checkin
 
 Data shredders
 ==============

doc/api/resources/subevents.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    geo
    lat

doc/api/resources/teams.rst

@@ -1,4 +1,4 @@
-.. spelling:: fullname checkin
+.. spelling:word-list:: fullname checkin
 
 .. _`rest-teams`:
 

doc/api/resources/webhooks.rst

@@ -26,6 +26,7 @@ limit_events                          list of strings            If ``all_events
 action_types                          list of strings            A list of action type filters that limit the
                                                                  notifications sent to this webhook. See below for
                                                                  valid values
+comment                               string                     Internal comment on this webhook, default ``null``
 ===================================== ========================== =======================================================
 
 The following values for ``action_types`` are valid with pretix core:
@@ -56,6 +57,7 @@ The following values for ``action_types`` are valid with pretix core:
     * ``pretix.subevent.added``
     * ``pretix.subevent.changed``
     * ``pretix.subevent.deleted``
+    * ``pretix.event.item.*``
     * ``pretix.event.live.activated``
     * ``pretix.event.live.deactivated``
     * ``pretix.event.testmode.activated``
@@ -98,7 +100,8 @@ Endpoints
             "target_url": "https://httpstat.us/200",
             "all_events": false,
             "limit_events": ["democon"],
-            "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"]
+            "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"],
+            "comment": null
           }
         ]
       }
@@ -135,7 +138,8 @@ Endpoints
         "target_url": "https://httpstat.us/200",
         "all_events": false,
         "limit_events": ["democon"],
-        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"]
+        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"],
+        "comment": null
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch
@@ -162,7 +166,8 @@ Endpoints
         "target_url": "https://httpstat.us/200",
         "all_events": false,
         "limit_events": ["democon"],
-        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"]
+        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"],
+        "comment": "Called for changes"
       }
 
    **Example response**:
@@ -179,7 +184,8 @@ Endpoints
         "target_url": "https://httpstat.us/200",
         "all_events": false,
         "limit_events": ["democon"],
-        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"]
+        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"],
+        "comment": "Called for changes"
       }
 
    :param organizer: The ``slug`` field of the organizer to create a webhook for
@@ -224,7 +230,8 @@ Endpoints
         "target_url": "https://httpstat.us/200",
         "all_events": false,
         "limit_events": ["democon"],
-        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"]
+        "action_types": ["pretix.event.order.modified", "pretix.event.order.changed.*"],
+        "comment": null
       }
 
    :param organizer: The ``slug`` field of the organizer to modify

doc/conf.py

@@ -13,10 +13,6 @@
 # All configuration values have a default; values that are commented out
 # serve to show the default.
 
-from docutils.parsers.rst.directives.admonitions import BaseAdmonition
-from sphinx.util import compat
-compat.make_admonition = BaseAdmonition  # See https://github.com/spinus/sphinxcontrib-images/issues/41
-
 import sys
 import os
 
@@ -28,12 +24,13 @@ from datetime import date
 sys.path.insert(0, os.path.abspath('../src'))
 
 import django
+
 os.environ.setdefault("DJANGO_SETTINGS_MODULE", "pretix.testutils.settings")
 django.setup()
 
-
 try:
-    import enchant
+    import enchant  # noqa
+
     HAS_PYENCHANT = True
 except:
     HAS_PYENCHANT = False
@@ -41,7 +38,7 @@ except:
 # -- General configuration ------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
-#needs_sphinx = '1.0'
+# needs_sphinx = '1.0'
 
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
@@ -52,6 +49,7 @@ extensions = [
     'sphinx.ext.coverage',
     'sphinxcontrib.httpdomain',
     'sphinxcontrib.images',
+    'sphinxcontrib.jquery',
     'sphinxemoji.sphinxemoji',
 ]
 if HAS_PYENCHANT:
@@ -64,7 +62,7 @@ templates_path = ['_templates']
 source_suffix = '.rst'
 
 # The encoding of source files.
-#source_encoding = 'utf-8-sig'
+# source_encoding = 'utf-8-sig'
 
 # The master toctree document.
 master_doc = 'index'
@@ -79,19 +77,20 @@ copyright = '2014-{}, Raphael Michel'.format(date.today().year)
 #
 # The short X.Y version.
 from pretix import __version__
+
 version = '.'.join(__version__.split('.')[:2])
 # The full version, including alpha/beta/rc tags.
 release = __version__
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
-#language = None
+# language = None
 
 # There are two options for replacing |today|: either, you set today to some
 # non-false value, then it is used:
-#today = ''
+# today = ''
 # Else, today_fmt is used as the format for a strftime call.
-#today_fmt = '%B %d, %Y'
+# today_fmt = '%B %d, %Y'
 
 # List of patterns, relative to source directory, that match files and
 # directories to ignore when looking for source files.
@@ -99,34 +98,34 @@ exclude_patterns = ['_build']
 
 # The reST default role (used for this markup: `text`) to use for all
 # documents.
-#default_role = None
+# default_role = None
 
 # If true, '()' will be appended to :func: etc. cross-reference text.
-#add_function_parentheses = True
+# add_function_parentheses = True
 
 # If true, the current module name will be prepended to all description
 # unit titles (such as .. function::).
-#add_module_names = True
+# add_module_names = True
 
 # If true, sectionauthor and moduleauthor directives will be shown in the
 # output. They are ignored by default.
-#show_authors = False
+# show_authors = False
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
 
 # A list of ignored prefixes for module index sorting.
-#modindex_common_prefix = []
+# modindex_common_prefix = []
 
 # If true, keep warnings as "system message" paragraphs in the built documents.
-#keep_warnings = False
+# keep_warnings = False
 
 
 # -- Options for HTML output ----------------------------------------------
 
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
-#html_theme = ""
+# html_theme = ""
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
@@ -136,14 +135,14 @@ html_theme_options = {
 }
 
 # Add any paths that contain custom themes here, relative to this directory.
-#html_theme_path = []
+# html_theme_path = []
 
 # The name for this set of Sphinx documents.  If None, it defaults to
 # "<project> v<release> documentation".
-#html_title = None
+# html_title = None
 
 # A shorter title for the navigation bar.  Default is the same as html_title.
-#html_short_title = None
+# html_short_title = None
 
 # The name of an image file (relative to this directory) to place at the top
 # of the sidebar.
@@ -152,7 +151,7 @@ html_logo = 'images/logo-white.svg'
 # The name of an image file (within the static path) to use as favicon of the
 # docs.  This file should be a Windows icon file (.ico) being 16x16 or 32x32
 # pixels large.
-#html_favicon = None
+# html_favicon = None
 
 # Add any paths that contain custom static files (such as style sheets) here,
 # relative to this directory. They are copied after the builtin static files,
@@ -166,18 +165,18 @@ html_static_path = [
 # Add any extra paths that contain custom files (such as robots.txt or
 # .htaccess) here, relative to this directory. These files are copied
 # directly to the root of the documentation.
-#html_extra_path = []
+# html_extra_path = []
 
 # If not '', a 'Last updated on:' timestamp is inserted at every page bottom,
 # using the given strftime format.
-#html_last_updated_fmt = '%b %d, %Y'
+# html_last_updated_fmt = '%b %d, %Y'
 
 # If true, SmartyPants will be used to convert quotes and dashes to
 # typographically correct entities.
-#html_use_smartypants = True
+# html_use_smartypants = True
 
 # Custom sidebar templates, maps document names to template names.
-#html_sidebars = {}
+# html_sidebars = {}
 
 # Additional templates that should be rendered to pages, maps page names to
 # template names.
@@ -192,24 +191,24 @@ html_domain_indices = False
 html_use_index = False
 
 # If true, the index is split into individual pages for each letter.
-#html_split_index = False
+# html_split_index = False
 
 # If true, links to the reST sources are added to the pages.
 html_show_sourcelink = True
 
 # If true, "Created using Sphinx" is shown in the HTML footer. Default is True.
-#html_show_sphinx = True
+# html_show_sphinx = True
 
 # If true, "(C) Copyright ..." is shown in the HTML footer. Default is True.
-#html_show_copyright = True
+# html_show_copyright = True
 
 # If true, an OpenSearch description file will be output, and all pages will
 # contain a <link> tag referring to it.  The value of this option must be the
 # base URL from which the finished HTML is served.
-#html_use_opensearch = ''
+# html_use_opensearch = ''
 
 # This is the file name suffix for HTML files (e.g. ".xhtml").
-#html_file_suffix = None
+# html_file_suffix = None
 
 # Output file base name for HTML help builder.
 htmlhelp_basename = 'pretixdoc'
@@ -217,47 +216,46 @@ htmlhelp_basename = 'pretixdoc'
 html_theme = 'pretix_theme'
 html_theme_path = [os.path.abspath('_themes')]
 
-
 # -- Options for LaTeX output ---------------------------------------------
 
 latex_elements = {
-# The paper size ('letterpaper' or 'a4paper').
+    # The paper size ('letterpaper' or 'a4paper').
     'papersize': 'a4paper',
 
-# The font size ('10pt', '11pt' or '12pt').
+    # The font size ('10pt', '11pt' or '12pt').
     'pointsize': '10pt',
 
-# Additional stuff for the LaTeX preamble.
-#'preamble': '',
+    # Additional stuff for the LaTeX preamble.
+    # 'preamble': '',
 }
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
 #  author, documentclass [howto, manual, or own class]).
 latex_documents = [
-  ('index', 'pretix.tex', 'pretix Documentation',
-   'Raphael Michel', 'manual'),
+    ('index', 'pretix.tex', 'pretix Documentation',
+     'Raphael Michel', 'manual'),
 ]
 
 # The name of an image file (relative to this directory) to place at the top of
 # the title page.
-#latex_logo = None
+# latex_logo = None
 
 # For "manual" documents, if this is true, then toplevel headings are parts,
 # not chapters.
-#latex_use_parts = False
+# latex_use_parts = False
 
 # If true, show page references after internal links.
-#latex_show_pagerefs = False
+# latex_show_pagerefs = False
 
 # If true, show URL addresses after external links.
-#latex_show_urls = False
+# latex_show_urls = False
 
 # Documents to append as an appendix to all manuals.
-#latex_appendices = []
+# latex_appendices = []
 
 # If false, no module index is generated.
-#latex_domain_indices = True
+# latex_domain_indices = True
 
 
 # -- Options for manual page output ---------------------------------------
@@ -270,7 +268,7 @@ man_pages = [
 ]
 
 # If true, show URL addresses after external links.
-#man_show_urls = False
+# man_show_urls = False
 
 
 # -- Options for Texinfo output -------------------------------------------
@@ -279,22 +277,22 @@ man_pages = [
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', 'pretix', 'pretix Documentation',
-   'Raphael Michel', 'pretix', 'One line description of project.',
-   'Miscellaneous'),
+    ('index', 'pretix', 'pretix Documentation',
+     'Raphael Michel', 'pretix', 'One line description of project.',
+     'Miscellaneous'),
 ]
 
 # Documents to append as an appendix to all manuals.
-#texinfo_appendices = []
+# texinfo_appendices = []
 
 # If false, no module index is generated.
-#texinfo_domain_indices = True
+# texinfo_domain_indices = True
 
 # How to display URL addresses: 'footnote', 'no', or 'inline'.
-#texinfo_show_urls = 'footnote'
+# texinfo_show_urls = 'footnote'
 
 # If true, do not generate a @detailmenu in the "Top" node's menu.
-#texinfo_no_detailmenu = False
+# texinfo_no_detailmenu = False
 
 
 images_config = {
@@ -314,12 +312,13 @@ if HAS_PYENCHANT:
     # String specifying a file containing a list of words known to be spelled
     # correctly but that do not appear in the language dictionary selected by
     # spelling_lang. The file should contain one word per line.
-    spelling_word_list_filename='spelling_wordlist.txt'
+    spelling_word_list_filename = 'spelling_wordlist.txt'
 
     # Boolean controlling whether suggestions for misspelled words are printed.
     # Defaults to False.
-    spelling_show_suggestions=True
+    spelling_show_suggestions = True
 
     # List of filter classes to be added to the tokenizer that produces words to be checked.
     from checkin_filter import CheckinFilter
-    spelling_filters=[CheckinFilter]
+
+    spelling_filters = [CheckinFilter]

doc/development/api/exporter.rst

@@ -76,6 +76,10 @@ The exporter class
 
       This is an abstract attribute, you **must** override this!
 
+   .. autoattribute:: description
+
+   .. autoattribute:: category
+
    .. autoattribute:: export_form_fields
 
    .. automethod:: render

doc/development/api/general.rst

@@ -61,7 +61,7 @@ Backend
              item_formsets, order_search_filter_q, order_search_forms
 
 .. automodule:: pretix.base.signals
-   :members: logentry_display, logentry_object_link, requiredaction_display, timeline_events
+   :members: logentry_display, logentry_object_link, requiredaction_display, timeline_events, orderposition_blocked_display
 
 Vouchers
 """"""""

doc/development/api/payment.rst

@@ -102,6 +102,8 @@ The provider class
 
    .. automethod:: render_invoice_text
 
+   .. automethod:: render_invoice_stamp
+
    .. automethod:: order_change_allowed
 
    .. automethod:: payment_prepare
@@ -120,6 +122,8 @@ The provider class
 
    .. automethod:: refund_control_render
 
+   .. automethod:: refund_control_render_short
+
    .. automethod:: new_refund_control_form_render
 
    .. automethod:: new_refund_control_form_process
@@ -130,6 +134,8 @@ The provider class
 
    .. automethod:: matching_id
 
+   .. automethod:: refund_matching_id
+
    .. automethod:: shred_payment_info
 
    .. automethod:: cancel_payment

doc/development/api/plugins.rst

@@ -55,7 +55,6 @@ visible            boolean (optional)   ``True`` by default, can hide a plugin s
 restricted         boolean (optional)   ``False`` by default, restricts a plugin such that it can only be enabled
                                         for an event by system administrators / superusers.
 experimental       boolean (optional)   ``False`` by default, marks a plugin as an experimental feature in the plugins list.
-picture            string (optional)    Path to a picture resolvable through the static file system.
 compatibility      string               Specifier for compatible pretix versions.
 ================== ==================== ===========================================================
 

doc/development/contribution/style.rst

@@ -1,4 +1,4 @@
-.. spelling:: Rebase rebasing
+.. spelling:word-list:: Rebase rebasing
 
 Coding style and quality
 ========================

doc/development/implementation/models.rst

@@ -1,7 +1,7 @@
 .. highlight:: python
    :linenothreshold: 5
 
-.. spelling:: answ contrib
+.. spelling:word-list:: answ contrib
 
 Data model
 ==========

doc/images/checkin_offline.puml

@@ -23,30 +23,50 @@ partition "data-based check" {
     "Is the order in status PAID or PENDING\nand is the position not canceled?" --> if "" then
         -right->[no] "Return error CANCELED"
     else
-        -down->[yes] "Is the product part of the check-in list?"
+        -down->[yes] "Is one or more block set on the ticket?"
         --> if "" then
-            -right->[no] "Return error PRODUCT"
+            -right->[no] "Return error BLOCKED"
         else
-            -down->[yes] "Is the subevent part of the check-in list?"
+            -down->[yes] "If this is not an exit, is the valid_from/valid_until\nconstraint on the ticket fulfilled?"
             --> if "" then
-                -right->[no] "Return error INVALID"
-                note bottom: TODO\ninconsistent\nwith online\ncheck
+                -right->[no] "Return error INVALID_TIME"
             else
-                -down->[yes] "Is the order in status PAID?"
+                -down->[yes] "Is the product part of the check-in list?"
                 --> if "" then
-                    -right->[no] "Does the check-in list include pending orders?"
+                    -right->[no] "Return error PRODUCT"
+                else
+                    -down->[yes] "Is the subevent part of the check-in list?"
                     --> if "" then
-                        -right->[no] "Return error UNPAID "
+                        -right->[no] "Return error INVALID"
+                        note bottom: TODO\ninconsistent\nwith online\ncheck
                     else
-                        -down->[yes] "Is ignore_unpaid set?\n(Has the operator confirmed\nthe checkin?)"
+                        -down->[yes] "Is the order in status PAID?"
                         --> if "" then
-                            -right->[no] "Return error UNPAID "
+                            -right->[no] "Is Order.require_approval set?"
+                            --> if "" then
+                                -->[yes] "Return error UNPAID "
+                            else
+                                -right->[no] "Is Order.valid_if_pending set?"
+                                --> if "" then
+                                    -->[yes] "Is this an entry or exit?"
+                                else
+                                    -->[no] "Does the check-in list include pending orders?"
+                                    --> if "" then
+                                        -->[no] "Return error UNPAID "
+                                    else
+                                        -->[yes] "Is ignore_unpaid set on the request?\n(Has the operator confirmed\nthe checkin?)"
+                                        --> if "" then
+                                            -->[no] "Return error UNPAID "
+                                        else
+                                            -->[yes] "Is this an entry or exit?"
+                                        endif
+                                    endif
+                                endif
+                            endif
                         else
                             -down->[yes] "Is this an entry or exit?"
                         endif
                     endif
-                else
-                    -down->[yes] "Is this an entry or exit?"
                 endif
             endif
         endif
@@ -98,16 +118,26 @@ partition "dataless check" {
         --> if "" then
             -right->[yes] "Return error REVOKED"
         else
-            -down->[no] "Is the product part of the check-in list? "
+            -down->[yes] "Is the ticket secret on the block list?"
             --> if "" then
-                -right->[no] "Return error PRODUCT "
+                -right->[yes] "Return error BLOCKED "
             else
-                -down->[yes] "Is the subevent part of the check-in list? "
+                -down->[yes] "If this is not an exit, is the valid_from/valid_until\nconstraint on the ticket fulfilled? "
                 --> if "" then
-                    -right->[no] "Return error INVALID  "
-                    note bottom: TODO\ninconsistent\nwith online\ncheck
+                    -right->[no] "Return error INVALID_TIME "
                 else
-                  --> "Is this an entry or exit? "
+                    -down->[no] "Is the product part of the check-in list? "
+                    --> if "" then
+                        -right->[no] "Return error PRODUCT "
+                    else
+                        -down->[yes] "Is the subevent part of the check-in list? "
+                        --> if "" then
+                            -right->[no] "Return error INVALID  "
+                            note bottom: TODO\ninconsistent\nwith online\ncheck
+                        else
+                          --> "Is this an entry or exit? "
+                        endif
+                    endif
                 endif
             endif
         endif

doc/images/checkin_online.puml

@@ -40,29 +40,49 @@ endif
 "Is the order in status PAID or PENDING\nand is the position not canceled?" --> if "" then
     -right->[no] "Return error CANCELED"
 else
-    -down->[yes] "Is the product part of the check-in list?"
+    -down->[yes] "Is one or more block set on the ticket?"
     --> if "" then
-        -right->[no] "Return error PRODUCT"
+        -right->[no] "Return error BLOCKED"
     else
-        -down->[yes] "Is the subevent part of the check-in list?"
+        -down->[yes] "If this is not an exit, is the valid_from/valid_until\nconstraint on the ticket fulfilled?"
         --> if "" then
-            -right->[no] "Return error PRODUCT "
+            -right->[no] "Return error INVALID_TIME"
         else
-            -down->[yes] "Is the order in status PAID\nor is this a forced upload?"
+            -down->[yes] "Is the product part of the check-in list?"
             --> if "" then
-                -right->[no] "Does the check-in list include pending orders?"
+                -right->[no] "Return error PRODUCT"
+            else
+                -down->[yes] "Is the subevent part of the check-in list?"
                 --> if "" then
-                    -right->[no] "Return error UNPAID "
+                    -right->[no] "Return error PRODUCT "
                 else
-                    -down->[yes] "Is ignore_unpaid set?\n(Has the operator confirmed\nthe checkin?)"
+                    -down->[yes] "Is the order in status PAID\nor is this a forced upload?"
                     --> if "" then
-                        -right->[no] "Return error UNPAID "
+                        -right->[no] "Is Order.require_approval set?"
+                        --> if "" then
+                            -->[no] "Is Order.valid_if_pending set?"
+                            --> if "" then
+                                -down->[yes] "Is this an entry or exit?\nIs the upload forced?"
+                            else
+                                -right->[no] "Does the check-in list include pending orders?"
+                                --> if "" then
+                                    -right->[no] "Return error UNPAID "
+                                else
+                                    -down->[yes] "Is ignore_unpaid set on the request?\n(Has the operator confirmed\nthe checkin?)"
+                                    --> if "" then
+                                        -right->[no] "Return error UNPAID "
+                                    else
+                                        -down->[yes] "Is this an entry or exit?\nIs the upload forced?"
+                                    endif
+                                endif
+                            endif
+                        else
+                            -->[yes] "Return error UNPAID "
+                        endif
                     else
                         -down->[yes] "Is this an entry or exit?\nIs the upload forced?"
                     endif
                 endif
-            else
-                -down->[yes] "Is this an entry or exit?\nIs the upload forced?"
             endif
         endif
     endif

doc/images/logo-white.svg

@@ -1,69 +1 @@
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-   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"
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-   height="109.59375"
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-   version="1.1"
-   id="svg5"
-   sodipodi:docname="logo-white.svg"
-   inkscape:version="0.92.1 r"><metadata
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-       rdf:about="">
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-      <dc:type
-         rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-      <dc:title></dc:title>
-    </cc:Work>
-  </rdf:RDF>
-</metadata>
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doc/license/faq.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    AGPL
    AGPLv3

doc/plugins/list.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
    Analytics
 
 List of plugins

doc/plugins/presale-saml.rst

@@ -1,5 +1,5 @@
 .. highlight:: ini
-.. spelling::
+.. spelling:word-list::
 
    IdP
    skIDentity

doc/plugins/ticketoutputpdf.rst

@@ -17,9 +17,13 @@ Field                                 Type                       Description
 id                                    integer                    Internal layout ID
 name                                  string                     Internal layout description
 default                               boolean                    ``true`` if this is the default layout
-layout                                object                     Layout specification for libpretixprint
+layout                                list                       Dynamic layout specification. Each list element
+                                                                 corresponds to one dynamic element of the layout.
+                                                                 The current version of the schema in use can be found
+                                                                 `here`_.
+                                                                 Submitting invalid content can lead to application errors.
 background                            URL                        Background PDF file
-item_assignments                      list of objects            Products this layout is assigned to
+item_assignments                      list of objects            Products this layout is assigned to (currently read-only)
 ├ sales_channel                       string                     Sales channel (defaults to ``web``).
 └ item                                integer                    Item ID
 ===================================== ========================== =======================================================
@@ -58,7 +62,7 @@ Endpoints
             "name": "Default layout",
             "default": true,
             "layout": {…},
-            "background": {},
+            "background": null,
             "item_assignments": []
           }
         ]
@@ -96,7 +100,7 @@ Endpoints
         "name": "Default layout",
         "default": true,
         "layout": {…},
-        "background": {},
+        "background": null,
         "item_assignments": []
       }
 
@@ -147,3 +151,122 @@ Endpoints
    :statuscode 200: no error
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer does not exist **or** you have no permission to view it.
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/ticketlayouts/
+
+   Creates a new ticket layout
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/ticketlayouts/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+
+      {
+        "name": "Default layout",
+        "default": true,
+        "layout": […],
+        "background": null,
+        "item_assignments": []
+      }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 201 Created
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "id": 1,
+        "name": "Default layout",
+        "default": true,
+        "layout": […],
+        "background": null,
+        "item_assignments": []
+      }
+
+   :param organizer: The ``slug`` field of the organizer of the event to create a layout for
+   :param event: The ``slug`` field of the event to create a layout for
+   :statuscode 201: no error
+   :statuscode 400: The layout could not be created due to invalid submitted data.
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to create this resource.
+
+.. http:patch:: /api/v1/organizers/(organizer)/events/(event)/ticketlayouts/(id)/
+
+   Update a layout. You can also use ``PUT`` instead of ``PATCH``. With ``PUT``, you have to provide all fields of
+   the resource, other fields will be reset to default. With ``PATCH``, you only need to provide the fields that you
+   want to change.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      PATCH /api/v1/organizers/bigevents/events/sampleconf/ticketlayouts/1/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+      Content-Length: 94
+
+      {
+        "name": "Default layout"
+      }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "id": 1,
+        "name": "Default layout",
+        "default": true,
+        "layout": […],
+        "background": null,
+        "item_assignments": []
+      }
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param id: The ``id`` field of the layout to modify
+   :statuscode 200: no error
+   :statuscode 400: The layout could not be modified due to invalid submitted data
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to change this resource.
+
+.. http:delete:: /api/v1/organizers/(organizer)/events/(event)/ticketlayouts/(id)/
+
+   Delete a layout.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      DELETE /api/v1/organizers/bigevents/events/sampleconf/ticketlayouts/1/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 204 No Content
+      Vary: Accept
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param id: The ``id`` field of the layout to delete
+   :statuscode 204: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to delete this resource.
+
+
+.. _here: https://github.com/pretix/pretix/blob/master/src/pretix/static/schema/pdf-layout.schema.json

doc/requirements.rtd.txt

@@ -1,10 +1,10 @@
-sphinx==2.3.*
-jinja2==3.0.*
+sphinx==6.1.*
+jinja2==3.1.*
 sphinx-rtd-theme
 sphinxcontrib-httpdomain
 sphinxcontrib-images
-sphinxcontrib-spelling==4.*
+sphinxcontrib-jquery
+sphinxcontrib-spelling==7.*
 sphinxemoji
 pygments-markdown-lexer
-# See https://github.com/rfk/pyenchant/pull/130
-git+https://github.com/raphaelm/pyenchant.git@patch-1#egg=pyenchant
+pyenchant==3.2.*

doc/requirements.txt

@@ -1,11 +1,11 @@
 -e ../src/
-sphinx==2.3.*
-jinja2==3.0.*
+sphinx==6.1.*
+jinja2==3.1.*
 sphinx-rtd-theme
 sphinxcontrib-httpdomain
 sphinxcontrib-images
-sphinxcontrib-spelling==4.*
+sphinxcontrib-jquery
+sphinxcontrib-spelling==7.*
 sphinxemoji
 pygments-markdown-lexer
-# See https://github.com/rfk/pyenchant/pull/130
-git+https://github.com/raphaelm/pyenchant.git@patch-1#egg=pyenchant
+pyenchant==3.2.*

doc/spelling_wordlist.txt

@@ -97,6 +97,7 @@ overpayment
 param
 passphrase
 percental
+personalization
 pluggable
 positionid
 pre

doc/user/events/giftcards.rst

@@ -1,4 +1,4 @@
-.. spelling::
+.. spelling:word-list::
 
    Warengutschein
    Wertgutschein

doc/user/events/invoicing.rst

@@ -1,7 +1,7 @@
 Invoice settings
 ================
 
-.. spelling:: Inv
+.. spelling:word-list:: Inv
 
 The settings at "Settings" → "Invoice" allow you to specify if and how pretix should generate invoices for your orders.
 

doc/user/events/widget.rst

@@ -153,9 +153,9 @@ If you want to include all your public events, you can just reference your organ
 There is an optional ``style`` parameter that let's you choose between a monthly calendar view, a week view and a list
 view. If you do not set it, the choice will be taken from your organizer settings::
 
-   <pretix-widget event="https://pretix.eu/demo/series/" style="list"></pretix-widget>
-   <pretix-widget event="https://pretix.eu/demo/series/" style="calendar"></pretix-widget>
-   <pretix-widget event="https://pretix.eu/demo/series/" style="week"></pretix-widget>
+   <pretix-widget event="https://pretix.eu/demo/series/" list-type="list"></pretix-widget>
+   <pretix-widget event="https://pretix.eu/demo/series/" list-type="calendar"></pretix-widget>
+   <pretix-widget event="https://pretix.eu/demo/series/" list-type="week"></pretix-widget>
 
 If you have more than 100 events, the system might refuse to show a list view and always show a calendar for performance
 reasons instead.
@@ -164,7 +164,7 @@ You can see an example here:
 
 .. raw:: html
 
-    <pretix-widget event="https://pretix.eu/demo/series/" style="calendar"></pretix-widget>
+    <pretix-widget event="https://pretix.eu/demo/series/" list-type="calendar"></pretix-widget>
     <noscript>
        <div class="pretix-widget">
             <div class="pretix-widget-info-message">
@@ -176,7 +176,7 @@ You can see an example here:
 You can filter events by meta data attributes. You can create those attributes in your order profile and set their values in both event and series date
 settings. For example, if you set up a meta data property called "Promoted" that you set to "Yes" on some events, you can pass a filter like this::
 
-   <pretix-widget event="https://pretix.eu/demo/series/" style="list" filter="attr[Promoted]=Yes"></pretix-widget>
+   <pretix-widget event="https://pretix.eu/demo/series/" list-type="list" filter="attr[Promoted]=Yes"></pretix-widget>
 
 pretix Button
 -------------

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src/pretix/__init__.py

@@ -19,4 +19,4 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
-__version__ = "4.16.0.dev0"
+__version__ = "4.18.0.dev0"

src/pretix/api/auth/devicesecurity.py

@@ -19,9 +19,12 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
+import logging
 
 from django.utils.translation import gettext_lazy as _
 
+logger = logging.getLogger(__name__)
+
 
 class FullAccessSecurityProfile:
     identifier = 'full'
@@ -36,7 +39,13 @@ class AllowListSecurityProfile:
 
     def is_allowed(self, request):
         key = (request.method, f"{request.resolver_match.namespace}:{request.resolver_match.url_name}")
-        return key in self.allowlist
+        if key in self.allowlist:
+            return True
+        else:
+            logger.info(
+                f'Request {key} not allowed in profile {self.identifier}'
+            )
+            return False
 
 
 class PretixScanSecurityProfile(AllowListSecurityProfile):
@@ -65,6 +74,7 @@ class PretixScanSecurityProfile(AllowListSecurityProfile):
         ('GET', 'api-v1:checkinlistpos-list'),
         ('POST', 'api-v1:checkinlistpos-redeem'),
         ('GET', 'api-v1:revokedsecrets-list'),
+        ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:order-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
         ('GET', 'api-v1:event.settings'),
@@ -99,6 +109,7 @@ class PretixScanNoSyncNoSearchSecurityProfile(AllowListSecurityProfile):
         ('POST', 'api-v1:checkinlist-failed_checkins'),
         ('POST', 'api-v1:checkinlistpos-redeem'),
         ('GET', 'api-v1:revokedsecrets-list'),
+        ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
         ('GET', 'api-v1:event.settings'),
         ('POST', 'api-v1:upload'),
@@ -133,6 +144,7 @@ class PretixScanNoSyncSecurityProfile(AllowListSecurityProfile):
         ('GET', 'api-v1:checkinlistpos-list'),
         ('POST', 'api-v1:checkinlistpos-redeem'),
         ('GET', 'api-v1:revokedsecrets-list'),
+        ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
         ('GET', 'api-v1:event.settings'),
         ('POST', 'api-v1:upload'),
@@ -199,6 +211,7 @@ class PretixPosSecurityProfile(AllowListSecurityProfile):
         ('POST', 'plugins:pretix_posbackend:stripeterminal.paymentintent'),
         ('PUT', 'plugins:pretix_posbackend:file.upload'),
         ('GET', 'api-v1:revokedsecrets-list'),
+        ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:event.settings'),
         ('GET', 'plugins:pretix_seating:event.event'),
         ('GET', 'plugins:pretix_seating:event.event.subevent'),

src/pretix/api/middleware.py

@@ -20,6 +20,7 @@
 # <https://www.gnu.org/licenses/>.
 #
 import json
+import logging
 from hashlib import sha1
 
 from django.conf import settings
@@ -32,6 +33,9 @@ from rest_framework import status
 
 from pretix.api.models import ApiCall
 from pretix.base.models import Organizer
+from pretix.helpers import OF_SELF
+
+logger = logging.getLogger(__name__)
 
 
 class IdempotencyMiddleware:
@@ -56,7 +60,7 @@ class IdempotencyMiddleware:
         idempotency_key = request.headers.get('X-Idempotency-Key', '')
 
         with transaction.atomic():
-            call, created = ApiCall.objects.select_for_update().get_or_create(
+            call, created = ApiCall.objects.select_for_update(of=OF_SELF).get_or_create(
                 auth_hash=auth_hash,
                 idempotency_key=idempotency_key,
                 defaults={
@@ -96,6 +100,9 @@ class IdempotencyMiddleware:
             return resp
         else:
             if call.locked:
+                logger.info(
+                    f'Concurrent request with idempotency key {idempotency_key} blocked.'
+                )
                 r = JsonResponse(
                     {'detail': 'Concurrent request with idempotency key.'},
                     status=status.HTTP_409_CONFLICT,
@@ -110,6 +117,7 @@ class IdempotencyMiddleware:
                 content=content,
                 status=call.response_code,
             )
+            logger.info(f'API response replayed from idempotency store for key {idempotency_key} [{call.response_code}]')
             for k, v in json.loads(call.response_headers).values():
                 r[k] = v
             return r

src/pretix/api/migrations/0009_auto_20221217_1847.py

@@ -0,0 +1,77 @@
+# Generated by Django 3.2.16 on 2022-12-17 18:47
+
+import uuid
+
+import django.db.models.deletion
+import oauth2_provider.generators
+import oauth2_provider.models
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0226_itemvariationmetavalue'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ('pretixapi', '0008_webhookcallretry'),
+    ]
+    run_before = [
+        ('oauth2_provider', '0002_auto_20190406_1805'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='oauthapplication',
+            name='algorithm',
+            field=models.CharField(default='', max_length=5),
+        ),
+        migrations.AddField(
+            model_name='oauthgrant',
+            name='claims',
+            field=models.TextField(default=''),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name='oauthgrant',
+            name='code_challenge',
+            field=models.CharField(default='', max_length=128),
+        ),
+        migrations.AddField(
+            model_name='oauthgrant',
+            name='code_challenge_method',
+            field=models.CharField(default='', max_length=10),
+        ),
+        migrations.AddField(
+            model_name='oauthgrant',
+            name='nonce',
+            field=models.CharField(default='', max_length=255),
+        ),
+        migrations.AlterField(
+            model_name='oauthapplication',
+            name='client_secret',
+            field=oauth2_provider.models.ClientSecretField(db_index=True, default=oauth2_provider.generators.generate_client_secret, max_length=255),
+        ),
+        migrations.CreateModel(
+            name='OAuthIDToken',
+            fields=[
+                ('id', models.BigAutoField(primary_key=True, serialize=False)),
+                ('jti', models.UUIDField(default=uuid.uuid4, unique=True)),
+                ('expires', models.DateTimeField()),
+                ('scope', models.TextField()),
+                ('created', models.DateTimeField(auto_now_add=True)),
+                ('updated', models.DateTimeField(auto_now=True)),
+                ('application', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.OAUTH2_PROVIDER_APPLICATION_MODEL)),
+                ('organizers', models.ManyToManyField(to='pretixbase.Organizer')),
+                ('user', models.ForeignKey(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='pretixapi_oauthidtoken', to=settings.AUTH_USER_MODEL)),
+            ],
+            options={
+                'abstract': False,
+            },
+        ),
+        migrations.AddField(
+            model_name='oauthaccesstoken',
+            name='id_token',
+            field=models.OneToOneField(null=True, on_delete=django.db.models.deletion.CASCADE, related_name='access_token', to='pretixapi.oauthidtoken'),
+        ),
+    ]

src/pretix/api/migrations/0010_webhook_comment.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.17 on 2023-02-07 12:18
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixapi', '0009_auto_20221217_1847'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='webhook',
+            name='comment',
+            field=models.CharField(max_length=255, null=True),
+        ),
+    ]

src/pretix/api/models.py

@@ -29,8 +29,8 @@ from oauth2_provider.generators import (
     generate_client_id, generate_client_secret,
 )
 from oauth2_provider.models import (
-    AbstractAccessToken, AbstractApplication, AbstractGrant,
-    AbstractRefreshToken,
+    AbstractAccessToken, AbstractApplication, AbstractGrant, AbstractIDToken,
+    AbstractRefreshToken, ClientSecretField,
 )
 from oauth2_provider.validators import URIValidator
 
@@ -46,7 +46,7 @@ class OAuthApplication(AbstractApplication):
         verbose_name=_("Client ID"),
         max_length=100, unique=True, default=generate_client_id, db_index=True
     )
-    client_secret = models.CharField(
+    client_secret = ClientSecretField(
         verbose_name=_("Client secret"),
         max_length=255, blank=False, default=generate_client_secret, db_index=True
     )
@@ -67,12 +67,26 @@ class OAuthGrant(AbstractGrant):
     redirect_uri = models.CharField(max_length=2500)  # Only 255 in AbstractGrant, which caused problems
 
 
+class OAuthIDToken(AbstractIDToken):
+    application = models.ForeignKey(
+        OAuthApplication, on_delete=models.CASCADE,
+    )
+    organizers = models.ManyToManyField('pretixbase.Organizer')
+
+
 class OAuthAccessToken(AbstractAccessToken):
     source_refresh_token = models.OneToOneField(
         # unique=True implied by the OneToOneField
         'OAuthRefreshToken', on_delete=models.SET_NULL, blank=True, null=True,
         related_name="refreshed_access_token"
     )
+    id_token = models.OneToOneField(
+        OAuthIDToken,
+        on_delete=models.CASCADE,
+        blank=True,
+        null=True,
+        related_name="access_token",
+    )
     application = models.ForeignKey(
         OAuthApplication, on_delete=models.CASCADE, blank=True, null=True,
     )
@@ -98,6 +112,7 @@ class WebHook(models.Model):
     target_url = models.URLField(verbose_name=_("Target URL"), max_length=255)
     all_events = models.BooleanField(default=True, verbose_name=_("All events (including newly created ones)"))
     limit_events = models.ManyToManyField('pretixbase.Event', verbose_name=_("Limit to events"), blank=True)
+    comment = models.CharField(verbose_name=_("Comment"), max_length=255, null=True, blank=True)
 
     class Meta:
         ordering = ('id',)

src/pretix/api/pagination.py

@@ -19,9 +19,19 @@
 # You should have received a copy of the GNU Affero General Public License along with this program.  If not, see
 # <https://www.gnu.org/licenses/>.
 #
+from rest_framework.filters import OrderingFilter
 from rest_framework.pagination import PageNumberPagination
 
+from pretix.helpers import get_deterministic_ordering
+
 
 class Pagination(PageNumberPagination):
     page_size_query_param = 'page_size'
     max_page_size = 50
+
+
+class TotalOrderingFilter(OrderingFilter):
+    def get_ordering(self, request, queryset, view):
+        o = super().get_ordering(request, queryset, view)
+        o = get_deterministic_ordering(queryset.model, o)
+        return o

src/pretix/api/serializers/event.py

@@ -59,6 +59,7 @@ from pretix.base.settings import (
     LazyI18nStringList, validate_event_settings,
 )
 from pretix.base.signals import api_event_settings_fields
+from pretix.multidomain.urlreverse import build_absolute_uri
 
 logger = logging.getLogger(__name__)
 
@@ -164,6 +165,10 @@ class EventSerializer(I18nAwareModelSerializer):
     timezone = TimeZoneField(required=False, choices=[(a, a) for a in common_timezones])
     valid_keys = ValidKeysField(source='*', read_only=True)
     best_availability_state = serializers.IntegerField(allow_null=True, read_only=True)
+    public_url = serializers.SerializerMethodField('get_event_url', read_only=True)
+
+    def get_event_url(self, event):
+        return build_absolute_uri(event, 'presale:event.index')
 
     class Meta:
         model = Event
@@ -171,7 +176,7 @@ class EventSerializer(I18nAwareModelSerializer):
                   'date_to', 'date_admission', 'is_public', 'presale_start',
                   'presale_end', 'location', 'geo_lat', 'geo_lon', 'has_subevents', 'meta_data', 'seating_plan',
                   'plugins', 'seat_category_mapping', 'timezone', 'item_meta_properties', 'valid_keys',
-                  'sales_channels', 'best_availability_state')
+                  'sales_channels', 'best_availability_state', 'public_url')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -662,6 +667,7 @@ class EventSettingsSerializer(SettingsSerializer):
         'show_times',
         'show_items_outside_presale_period',
         'display_net_prices',
+        'hide_prices_from_attendees',
         'presale_start_show_date',
         'locales',
         'locale',

src/pretix/api/serializers/exporters.py

@@ -22,8 +22,10 @@
 from django import forms
 from django.http import QueryDict
 from rest_framework import serializers
+from rest_framework.exceptions import ValidationError
 
 from pretix.base.exporter import OrganizerLevelExportMixin
+from pretix.base.timeframes import DateFrameField, SerializerDateFrameField
 
 
 class FormFieldWrapperField(serializers.Field):
@@ -142,6 +144,12 @@ class JobRunSerializer(serializers.Serializer):
                     allow_null=not v.required,
                     validators=v.validators,
                 )
+            elif isinstance(v, DateFrameField):
+                self.fields[k] = SerializerDateFrameField(
+                    required=v.required,
+                    allow_null=not v.required,
+                    validators=v.validators,
+                )
             else:
                 self.fields[k] = FormFieldWrapperField(form_field=v, required=v.required, allow_null=not v.required)
 
@@ -151,5 +159,40 @@ class JobRunSerializer(serializers.Serializer):
         for k, v in self.fields.items():
             if isinstance(v, serializers.ManyRelatedField) and k not in data:
                 data[k] = []
+
+        for fk in self.fields.keys():
+            # Backwards compatibility for exports that used to take e.g. (date_from, date_to) or (event_date_from, event_date_to)
+            # and now only take date_range.
+            if fk.endswith("_range") and isinstance(self.fields[fk], SerializerDateFrameField) and fk not in data:
+                if fk.replace("_range", "_from") in data:
+                    d_from = data.pop(fk.replace("_range", "_from"))
+                    if d_from:
+                        d_from = serializers.DateField().to_internal_value(d_from)
+                else:
+                    d_from = None
+                if fk.replace("_range", "_to") in data:
+                    d_to = data.pop(fk.replace("_range", "_to"))
+                    if d_to:
+                        d_to = serializers.DateField().to_internal_value(d_to)
+                else:
+                    d_to = None
+                data[fk] = f'{d_from.isoformat() if d_from else ""}/{d_to.isoformat() if d_to else ""}'
+
         data = super().to_internal_value(data)
         return data
+
+    def is_valid(self, raise_exception=False):
+        super().is_valid(raise_exception=raise_exception)
+
+        fields_keys = set(self.fields.keys())
+        input_keys = set(self.initial_data.keys())
+
+        additional_fields = input_keys - fields_keys
+
+        if bool(additional_fields):
+            self._errors['fields'] = ['Additional fields not allowed: {}.'.format(list(additional_fields))]
+
+        if self._errors and raise_exception:
+            raise ValidationError(self.errors)
+
+        return not bool(self._errors)

src/pretix/api/serializers/item.py

@@ -60,8 +60,8 @@ class InlineItemVariationSerializer(I18nAwareModelSerializer):
         model = ItemVariation
         fields = ('id', 'value', 'active', 'description',
                   'position', 'default_price', 'price', 'original_price', 'require_approval',
-                  'require_membership', 'require_membership_types',
-                  'require_membership_hidden', 'available_from', 'available_until',
+                  'require_membership', 'require_membership_types', 'require_membership_hidden',
+                  'checkin_attention', 'available_from', 'available_until',
                   'sales_channels', 'hide_without_voucher', 'meta_data')
 
     def __init__(self, *args, **kwargs):
@@ -84,8 +84,8 @@ class ItemVariationSerializer(I18nAwareModelSerializer):
         model = ItemVariation
         fields = ('id', 'value', 'active', 'description',
                   'position', 'default_price', 'price', 'original_price', 'require_approval',
-                  'require_membership', 'require_membership_types',
-                  'require_membership_hidden', 'available_from', 'available_until',
+                  'require_membership', 'require_membership_types', 'require_membership_hidden',
+                  'checkin_attention', 'available_from', 'available_until',
                   'sales_channels', 'hide_without_voucher', 'meta_data')
 
     def __init__(self, *args, **kwargs):
@@ -95,8 +95,12 @@ class ItemVariationSerializer(I18nAwareModelSerializer):
     @transaction.atomic
     def create(self, validated_data):
         meta_data = validated_data.pop('meta_data', None)
+        require_membership_types = validated_data.pop('require_membership_types', [])
         variation = ItemVariation.objects.create(**validated_data)
 
+        if require_membership_types:
+            variation.require_membership_types.add(*require_membership_types)
+
         # Meta data
         if meta_data is not None:
             for key, value in meta_data.items():
@@ -230,7 +234,7 @@ class ItemSerializer(I18nAwareModelSerializer):
     class Meta:
         model = Item
         fields = ('id', 'category', 'name', 'internal_name', 'active', 'sales_channels', 'description',
-                  'default_price', 'free_price', 'tax_rate', 'tax_rule', 'admission',
+                  'default_price', 'free_price', 'tax_rate', 'tax_rule', 'admission', 'personalized',
                   'position', 'picture', 'available_from', 'available_until',
                   'require_voucher', 'hide_without_voucher', 'allow_cancel', 'require_bundling',
                   'min_per_order', 'max_per_order', 'checkin_attention', 'has_variations', 'variations',
@@ -238,7 +242,9 @@ class ItemSerializer(I18nAwareModelSerializer):
                   'show_quota_left', 'hidden_if_available', 'allow_waitinglist', 'issue_giftcard', 'meta_data',
                   'require_membership', 'require_membership_types', 'require_membership_hidden', 'grant_membership_type',
                   'grant_membership_duration_like_event', 'grant_membership_duration_days',
-                  'grant_membership_duration_months')
+                  'grant_membership_duration_months', 'validity_mode', 'validity_fixed_from', 'validity_fixed_until',
+                  'validity_dynamic_duration_minutes', 'validity_dynamic_duration_hours', 'validity_dynamic_duration_days',
+                  'validity_dynamic_duration_months', 'validity_dynamic_start_choice', 'validity_dynamic_start_choice_day_limit')
         read_only_fields = ('has_variations',)
 
     def __init__(self, *args, **kwargs):
@@ -258,6 +264,15 @@ class ItemSerializer(I18nAwareModelSerializer):
         Item.clean_per_order(data.get('min_per_order'), data.get('max_per_order'))
         Item.clean_available(data.get('available_from'), data.get('available_until'))
 
+        if data.get('personalized') and not data.get('admission'):
+            raise ValidationError(_('Only admission products can currently be personalized.'))
+
+        if data.get('admission') and 'personalized' not in data and not self.instance:
+            # Backwards compatibility
+            data['personalized'] = True
+        elif 'admission' in data and not data['admission']:
+            data['personalized'] = False
+
         if data.get('issue_giftcard'):
             if data.get('tax_rule') and data.get('tax_rule').rate > 0:
                 raise ValidationError(

src/pretix/api/serializers/order.py

@@ -52,7 +52,8 @@ from pretix.base.models import (
     SubEvent, TaxRule, Voucher,
 )
 from pretix.base.models.orders import (
-    CartPosition, OrderFee, OrderPayment, OrderRefund, RevokedTicketSecret,
+    BlockedTicketSecret, CartPosition, OrderFee, OrderPayment, OrderRefund,
+    RevokedTicketSecret,
 )
 from pretix.base.pdf import get_images, get_variables
 from pretix.base.services.cart import error_messages
@@ -118,6 +119,10 @@ class InvoiceAddressSerializer(I18nAwareModelSerializer):
             raise ValidationError(
                 {'name': ['Do not specify name if you specified name_parts.']}
             )
+
+        if data.get('name_parts') and not isinstance(data.get('name_parts'), dict):
+            raise ValidationError({'name_parts': ['Invalid data type']})
+
         if data.get('name_parts') and '_scheme' not in data.get('name_parts'):
             data['name_parts']['_scheme'] = self.context['request'].event.settings.name_scheme
 
@@ -296,7 +301,9 @@ class FailedCheckinSerializer(I18nAwareModelSerializer):
 class OrderDownloadsField(serializers.Field):
     def to_representation(self, instance: Order):
         if instance.status != Order.STATUS_PAID:
-            if instance.status != Order.STATUS_PENDING or instance.require_approval or not instance.event.settings.ticket_download_pending:
+            if instance.status != Order.STATUS_PENDING or instance.require_approval or (
+                not instance.valid_if_pending and not instance.event.settings.ticket_download_pending
+            ):
                 return []
 
         request = self.context['request']
@@ -320,7 +327,9 @@ class OrderDownloadsField(serializers.Field):
 class PositionDownloadsField(serializers.Field):
     def to_representation(self, instance: OrderPosition):
         if instance.order.status != Order.STATUS_PAID:
-            if instance.order.status != Order.STATUS_PENDING or instance.order.require_approval or not instance.order.event.settings.ticket_download_pending:
+            if instance.order.status != Order.STATUS_PENDING or instance.order.require_approval or (
+                not instance.order.valid_if_pending and not instance.order.event.settings.ticket_download_pending
+            ):
                 return []
         if not instance.generate_ticket:
             return []
@@ -433,11 +442,12 @@ class OrderPositionSerializer(I18nAwareModelSerializer):
         fields = ('id', 'order', 'positionid', 'item', 'variation', 'price', 'attendee_name', 'attendee_name_parts',
                   'company', 'street', 'zipcode', 'city', 'country', 'state', 'discount',
                   'attendee_email', 'voucher', 'tax_rate', 'tax_value', 'secret', 'addon_to', 'subevent', 'checkins',
-                  'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'canceled')
+                  'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'canceled',
+                  'valid_from', 'valid_until', 'blocked')
         read_only_fields = (
             'id', 'order', 'positionid', 'item', 'variation', 'price', 'voucher', 'tax_rate', 'tax_value', 'secret',
             'addon_to', 'subevent', 'checkins', 'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data',
-            'seat', 'canceled', 'discount',
+            'seat', 'canceled', 'discount', 'valid_from', 'valid_until', 'blocked'
         )
 
     def __init__(self, *args, **kwargs):
@@ -459,7 +469,7 @@ class OrderPositionSerializer(I18nAwareModelSerializer):
 
 class RequireAttentionField(serializers.Field):
     def to_representation(self, instance: OrderPosition):
-        return instance.order.checkin_attention or instance.item.checkin_attention
+        return instance.require_checkin_attention
 
 
 class AttendeeNameField(serializers.Field):
@@ -504,7 +514,7 @@ class CheckinListOrderPositionSerializer(OrderPositionSerializer):
                   'company', 'street', 'zipcode', 'city', 'country', 'state',
                   'attendee_email', 'voucher', 'tax_rate', 'tax_value', 'secret', 'addon_to', 'subevent', 'checkins',
                   'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'require_attention',
-                  'order__status')
+                  'order__status', 'valid_from', 'valid_until', 'blocked')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -618,7 +628,7 @@ class OrderSerializer(I18nAwareModelSerializer):
             'code', 'status', 'testmode', 'secret', 'email', 'phone', 'locale', 'datetime', 'expires', 'payment_date',
             'payment_provider', 'fees', 'total', 'comment', 'custom_followup_at', 'invoice_address', 'positions', 'downloads',
             'checkin_attention', 'last_modified', 'payments', 'refunds', 'require_approval', 'sales_channel',
-            'url', 'customer'
+            'url', 'customer', 'valid_if_pending'
         )
         read_only_fields = (
             'code', 'status', 'testmode', 'secret', 'datetime', 'expires', 'payment_date',
@@ -636,7 +646,7 @@ class OrderSerializer(I18nAwareModelSerializer):
             for fname, field in list(self.fields.items()):
                 if fname in includes:
                     continue
-                elif hasattr(field, 'child'):
+                elif hasattr(field, 'child'):  # Nested list serializers
                     found_any = False
                     for childfname, childfield in list(field.child.fields.items()):
                         if f'{fname}.{childfname}' not in includes:
@@ -645,6 +655,15 @@ class OrderSerializer(I18nAwareModelSerializer):
                             found_any = True
                     if not found_any:
                         self.fields.pop(fname)
+                elif isinstance(field, serializers.Serializer):  # Nested serializers
+                    found_any = False
+                    for childfname, childfield in list(field.fields.items()):
+                        if f'{fname}.{childfname}' not in includes:
+                            field.fields.pop(childfname)
+                        else:
+                            found_any = True
+                    if not found_any:
+                        self.fields.pop(fname)
                 else:
                     self.fields.pop(fname)
 
@@ -664,7 +683,8 @@ class OrderSerializer(I18nAwareModelSerializer):
     def update(self, instance, validated_data):
         # Even though all fields that shouldn't be edited are marked as read_only in the serializer
         # (hopefully), we'll be extra careful here and be explicit about the model fields we update.
-        update_fields = ['comment', 'custom_followup_at', 'checkin_attention', 'email', 'locale', 'phone']
+        update_fields = ['comment', 'custom_followup_at', 'checkin_attention', 'email', 'locale', 'phone',
+                         'valid_if_pending']
 
         if 'invoice_address' in validated_data:
             iadata = validated_data.pop('invoice_address')
@@ -765,12 +785,14 @@ class OrderPositionCreateSerializer(I18nAwareModelSerializer):
     voucher = serializers.SlugRelatedField(slug_field='code', queryset=Voucher.objects.none(),
                                            required=False, allow_null=True)
     country = CompatibleCountryField(source='*')
+    requested_valid_from = serializers.DateTimeField(required=False, allow_null=True)
 
     class Meta:
         model = OrderPosition
         fields = ('positionid', 'item', 'variation', 'price', 'attendee_name', 'attendee_name_parts', 'attendee_email',
                   'company', 'street', 'zipcode', 'city', 'country', 'state', 'is_bundled',
-                  'secret', 'addon_to', 'subevent', 'answers', 'seat', 'voucher')
+                  'secret', 'addon_to', 'subevent', 'answers', 'seat', 'voucher', 'valid_from', 'valid_until',
+                  'requested_valid_from')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -832,6 +854,10 @@ class OrderPositionCreateSerializer(I18nAwareModelSerializer):
             raise ValidationError(
                 {'attendee_name': ['Do not specify attendee_name if you specified attendee_name_parts.']}
             )
+
+        if data.get('attendee_name_parts') and not isinstance(data.get('attendee_name_parts'), dict):
+            raise ValidationError({'attendee_name_parts': ['Invalid data type']})
+
         if data.get('attendee_name_parts') and '_scheme' not in data.get('attendee_name_parts'):
             data['attendee_name_parts']['_scheme'] = self.context['request'].event.settings.name_scheme
 
@@ -924,7 +950,8 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
         model = Order
         fields = ('code', 'status', 'testmode', 'email', 'phone', 'locale', 'payment_provider', 'fees', 'comment', 'sales_channel',
                   'invoice_address', 'positions', 'checkin_attention', 'payment_info', 'payment_date', 'consume_carts',
-                  'force', 'send_email', 'simulate', 'customer', 'custom_followup_at', 'require_approval')
+                  'force', 'send_email', 'simulate', 'customer', 'custom_followup_at', 'require_approval',
+                  'valid_if_pending')
 
     def validate_payment_provider(self, pp):
         if pp is None:
@@ -1152,6 +1179,20 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
                 elif seated:
                     errs[i]['seat'] = ['The specified product requires to choose a seat.']
 
+                requested_valid_from = pos_data.pop('requested_valid_from', None)
+                if 'valid_from' not in pos_data and 'valid_until' not in pos_data:
+                    valid_from, valid_until = pos_data['item'].compute_validity(
+                        requested_start=(
+                            max(requested_valid_from, now())
+                            if requested_valid_from and pos_data['item'].validity_dynamic_start_choice
+                            else now()
+                        ),
+                        enforce_start_limit=True,
+                        override_tz=self.context['event'].timezone,
+                    )
+                    pos_data['valid_from'] = valid_from
+                    pos_data['valid_until'] = valid_until
+
             if not force:
                 for i, pos_data in enumerate(positions_data):
                     if pos_data.get('voucher'):
@@ -1467,9 +1508,9 @@ class InvoiceSerializer(I18nAwareModelSerializer):
                   'invoice_to', 'invoice_to_company', 'invoice_to_name', 'invoice_to_street', 'invoice_to_zipcode',
                   'invoice_to_city', 'invoice_to_state', 'invoice_to_country', 'invoice_to_vat_id', 'invoice_to_beneficiary',
                   'custom_field', 'date', 'refers', 'locale',
-                  'introductory_text', 'additional_text', 'payment_provider_text', 'footer_text', 'lines',
-                  'foreign_currency_display', 'foreign_currency_rate', 'foreign_currency_rate_date',
-                  'internal_reference')
+                  'introductory_text', 'additional_text', 'payment_provider_text', 'payment_provider_stamp',
+                  'footer_text', 'lines', 'foreign_currency_display', 'foreign_currency_rate',
+                  'foreign_currency_rate_date', 'internal_reference')
 
 
 class OrderPaymentCreateSerializer(I18nAwareModelSerializer):
@@ -1515,3 +1556,10 @@ class RevokedTicketSecretSerializer(I18nAwareModelSerializer):
     class Meta:
         model = RevokedTicketSecret
         fields = ('id', 'secret', 'created')
+
+
+class BlockedTicketSecretSerializer(I18nAwareModelSerializer):
+
+    class Meta:
+        model = BlockedTicketSecret
+        fields = ('id', 'secret', 'updated', 'blocked')

src/pretix/api/serializers/orderchange.py

@@ -24,6 +24,7 @@ import os
 
 import pycountry
 from django.core.files import File
+from django.core.validators import RegexValidator
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
 
@@ -53,7 +54,7 @@ class OrderPositionCreateForExistingOrderSerializer(OrderPositionCreateSerialize
         model = OrderPosition
         fields = ('order', 'item', 'variation', 'price', 'attendee_name', 'attendee_name_parts', 'attendee_email',
                   'company', 'street', 'zipcode', 'city', 'country', 'state',
-                  'secret', 'addon_to', 'subevent', 'answers', 'seat')
+                  'secret', 'addon_to', 'subevent', 'answers', 'seat', 'valid_from', 'valid_until')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -89,6 +90,8 @@ class OrderPositionCreateForExistingOrderSerializer(OrderPositionCreateSerialize
                 addon_to=validated_data.get('addon_to'),
                 subevent=validated_data.get('subevent'),
                 seat=validated_data.get('seat'),
+                valid_from=validated_data.get('valid_from'),
+                valid_until=validated_data.get('valid_until'),
             )
             if self.context.get('commit', True):
                 ocm.commit()
@@ -158,12 +161,14 @@ class OrderPositionInfoPatchSerializer(serializers.ModelSerializer):
                 a.question_id: a for a in instance.answers.all()
             }
             for answ_data in answers_data:
+                if not answ_data.get('answer'):
+                    continue
                 options = answ_data.pop('options', [])
                 if answ_data['question'].pk in qs_seen:
                     raise ValidationError(f'Question {answ_data["question"]} was sent twice.')
                 if answ_data['question'].pk in answercache:
                     a = answercache[answ_data['question'].pk]
-                    if isinstance(answ_data['answer'], File):
+                    if isinstance(answ_data.get('answer'), File):
                         a.file.save(answ_data['answer'].name, answ_data['answer'], save=False)
                         a.answer = 'file://' + a.file.name
                     elif a.answer.startswith('file://') and answ_data['answer'] == "file:keep":
@@ -173,7 +178,7 @@ class OrderPositionInfoPatchSerializer(serializers.ModelSerializer):
                             setattr(a, attr, value)
                     a.save()
                 else:
-                    if isinstance(answ_data['answer'], File):
+                    if isinstance(answ_data.get('answer'), File):
                         an = answ_data.pop('answer')
                         a = instance.answers.create(**answ_data, answer='')
                         a.file.save(os.path.basename(an.name), an, save=False)
@@ -196,7 +201,7 @@ class OrderPositionChangeSerializer(serializers.ModelSerializer):
     class Meta:
         model = OrderPosition
         fields = (
-            'item', 'variation', 'subevent', 'seat', 'price', 'tax_rule',
+            'item', 'variation', 'subevent', 'seat', 'price', 'tax_rule', 'valid_from', 'valid_until'
         )
 
     def __init__(self, *args, **kwargs):
@@ -262,6 +267,8 @@ class OrderPositionChangeSerializer(serializers.ModelSerializer):
         price = validated_data.get('price', instance.price)
         seat = validated_data.get('seat', current_seat)
         tax_rule = validated_data.get('tax_rule', instance.tax_rule)
+        valid_from = validated_data.get('valid_from', instance.valid_from)
+        valid_until = validated_data.get('valid_until', instance.valid_until)
 
         change_item = None
         if item != instance.item or variation != instance.variation:
@@ -288,6 +295,12 @@ class OrderPositionChangeSerializer(serializers.ModelSerializer):
             if tax_rule != instance.tax_rule:
                 ocm.change_tax_rule(instance, tax_rule)
 
+            if valid_from != instance.valid_from:
+                ocm.change_valid_from(instance, valid_from)
+
+            if valid_until != instance.valid_until:
+                ocm.change_valid_until(instance, valid_until)
+
             if self.context.get('commit', True):
                 ocm.commit()
                 instance.refresh_from_db()
@@ -421,3 +434,7 @@ class OrderChangeOperationSerializer(serializers.Serializer):
             seen_positions.add(d['fee'])
 
         return data
+
+
+class BlockNameSerializer(serializers.Serializer):
+    name = serializers.CharField(validators=[RegexValidator('^(admin|api:[a-zA-Z0-9._]+)$')])

src/pretix/api/serializers/organizer.py

@@ -41,15 +41,21 @@ from pretix.base.models import (
 from pretix.base.models.seating import SeatingPlanLayoutValidator
 from pretix.base.services.mail import SendMailException, mail
 from pretix.base.settings import validate_organizer_settings
-from pretix.helpers.urls import build_absolute_uri
+from pretix.helpers.urls import build_absolute_uri as build_global_uri
+from pretix.multidomain.urlreverse import build_absolute_uri
 
 logger = logging.getLogger(__name__)
 
 
 class OrganizerSerializer(I18nAwareModelSerializer):
+    public_url = serializers.SerializerMethodField('get_organizer_url', read_only=True)
+
+    def get_organizer_url(self, organizer):
+        return build_absolute_uri(organizer, 'presale:organizer.index')
+
     class Meta:
         model = Organizer
-        fields = ('name', 'slug')
+        fields = ('name', 'slug', 'public_url')
 
 
 class SeatingPlanSerializer(I18nAwareModelSerializer):
@@ -79,6 +85,13 @@ class CustomerSerializer(I18nAwareModelSerializer):
             validated_data['external_identifier'] = instance.external_identifier
         return super().update(instance, validated_data)
 
+    def validate(self, data):
+        if data.get('name_parts') and not isinstance(data.get('name_parts'), dict):
+            raise ValidationError({'name_parts': ['Invalid data type']})
+        if data.get('name_parts') and '_scheme' not in data.get('name_parts'):
+            data['name_parts']['_scheme'] = self.context['request'].organizer.settings.name_scheme
+        return data
+
 
 class CustomerCreateSerializer(CustomerSerializer):
     send_email = serializers.BooleanField(default=False, required=False, allow_null=True)
@@ -220,7 +233,7 @@ class TeamInviteSerializer(serializers.ModelSerializer):
                     'user': self,
                     'organizer': self.context['organizer'].name,
                     'team': instance.team.name,
-                    'url': build_absolute_uri('control:auth.invite', kwargs={
+                    'url': build_global_uri('control:auth.invite', kwargs={
                         'token': instance.token
                     })
                 },

src/pretix/api/serializers/webhooks.py

@@ -55,7 +55,7 @@ class WebHookSerializer(I18nAwareModelSerializer):
 
     class Meta:
         model = WebHook
-        fields = ('id', 'enabled', 'target_url', 'all_events', 'limit_events', 'action_types')
+        fields = ('id', 'enabled', 'target_url', 'all_events', 'limit_events', 'action_types', 'comment')
 
     def validate(self, data):
         data = super().validate(data)

src/pretix/api/urls.py

@@ -35,7 +35,8 @@
 import importlib
 
 from django.apps import apps
-from django.conf.urls import include, re_path
+from django.conf.urls import re_path
+from django.urls import include
 from rest_framework import routers
 
 from pretix.api.views import cart
@@ -80,6 +81,7 @@ event_router.register(r'orders', order.OrderViewSet)
 event_router.register(r'orderpositions', order.OrderPositionViewSet)
 event_router.register(r'invoices', order.InvoiceViewSet)
 event_router.register(r'revokedsecrets', order.RevokedSecretViewSet, basename='revokedsecrets')
+event_router.register(r'blockedsecrets', order.BlockedSecretViewSet, basename='blockedsecrets')
 event_router.register(r'taxrules', event.TaxRuleViewSet)
 event_router.register(r'waitinglistentries', waitinglist.WaitingListViewSet)
 event_router.register(r'checkinlists', checkin.CheckinListViewSet)

src/pretix/api/views/__init__.py

@@ -24,10 +24,11 @@ from calendar import timegm
 from django.db.models import Max
 from django.http import HttpResponse
 from django.utils.http import http_date, parse_http_date_safe
-from rest_framework.filters import OrderingFilter
+
+from pretix.api.pagination import TotalOrderingFilter
 
 
-class RichOrderingFilter(OrderingFilter):
+class RichOrderingFilter(TotalOrderingFilter):
 
     def filter_queryset(self, request, queryset, view):
         ordering = self.get_ordering(request, queryset, view)

src/pretix/api/views/cart.py

@@ -29,11 +29,11 @@ from django.utils.translation import gettext as _
 from rest_framework import status, viewsets
 from rest_framework.decorators import action
 from rest_framework.exceptions import ValidationError
-from rest_framework.filters import OrderingFilter
 from rest_framework.mixins import CreateModelMixin, DestroyModelMixin
 from rest_framework.response import Response
 from rest_framework.serializers import as_serializer_error
 
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.cart import (
     CartPositionCreateSerializer, CartPositionSerializer,
 )
@@ -47,7 +47,7 @@ from pretix.base.services.locking import NoLockManager
 class CartPositionViewSet(CreateModelMixin, DestroyModelMixin, viewsets.ReadOnlyModelViewSet):
     serializer_class = CartPositionSerializer
     queryset = CartPosition.objects.none()
-    filter_backends = (OrderingFilter,)
+    filter_backends = (TotalOrderingFilter,)
     ordering = ('datetime',)
     ordering_fields = ('datetime', 'cart_id')
     lookup_field = 'id'

src/pretix/api/views/checkin.py

@@ -93,8 +93,10 @@ with scopes_disabled():
 class CheckinListViewSet(viewsets.ModelViewSet):
     serializer_class = CheckinListSerializer
     queryset = CheckinList.objects.none()
-    filter_backends = (DjangoFilterBackend,)
+    filter_backends = (DjangoFilterBackend, RichOrderingFilter)
     filterset_class = CheckinListFilter
+    ordering = ('subevent__date_from', 'name', 'id')
+    ordering_fields = ('subevent__date_from', 'id', 'name',)
 
     def _get_permission_name(self, request):
         if request.path.endswith('/failed_checkins/'):
@@ -271,7 +273,13 @@ with scopes_disabled():
         def check_rules_qs(self, queryset, name, value):
             if not self.checkinlist.rules:
                 return queryset
-            return queryset.filter(SQLLogic(self.checkinlist).apply(self.checkinlist.rules))
+            return queryset.filter(
+                SQLLogic(self.checkinlist).apply(self.checkinlist.rules)
+            ).filter(
+                Q(valid_from__isnull=True) | Q(valid_from__lte=now()),
+                Q(valid_until__isnull=True) | Q(valid_until__gte=now()),
+                blocked__isnull=True,
+            )
 
 
 def _handle_file_upload(data, user, auth):
@@ -323,7 +331,13 @@ def _checkin_list_position_queryset(checkinlists, ignore_status=False, ignore_pr
         if checkinlist.subevent:
             list_q &= Q(subevent=checkinlist.subevent)
         if not ignore_status:
-            list_q &= Q(order__status__in=[Order.STATUS_PAID, Order.STATUS_PENDING] if checkinlist.include_pending else [Order.STATUS_PAID])
+            if checkinlist.include_pending:
+                list_q &= Q(order__status__in=[Order.STATUS_PAID, Order.STATUS_PENDING])
+            else:
+                list_q &= Q(
+                    Q(order__status=Order.STATUS_PAID) |
+                    Q(order__status=Order.STATUS_PENDING, order__valid_if_pending=True)
+                )
         if not checkinlist.all_products and not ignore_products:
             list_q &= Q(item__in=checkinlist.limit_products.values_list('id', flat=True))
         lists_qs.append(list_q)
@@ -580,7 +594,7 @@ def _redeem_process(*, checkinlists, raw_barcode, answers_data, datetime, force,
                 'status': 'error',
                 'reason': Checkin.REASON_AMBIGUOUS,
                 'reason_explanation': None,
-                'require_attention': op.item.checkin_attention or op.order.checkin_attention,
+                'require_attention': op.require_checkin_attention,
                 'position': CheckinListOrderPositionSerializer(op, context=_make_context(context, op.order.event)).data,
                 'list': MiniCheckinListSerializer(list_by_event[op.order.event_id]).data,
             }, status=400)
@@ -625,7 +639,7 @@ def _redeem_process(*, checkinlists, raw_barcode, answers_data, datetime, force,
         except RequiredQuestionsError as e:
             return Response({
                 'status': 'incomplete',
-                'require_attention': op.item.checkin_attention or op.order.checkin_attention,
+                'require_attention': op.require_checkin_attention,
                 'position': CheckinListOrderPositionSerializer(op, context=_make_context(context, op.order.event)).data,
                 'questions': [
                     QuestionSerializer(q).data for q in e.questions
@@ -654,14 +668,14 @@ def _redeem_process(*, checkinlists, raw_barcode, answers_data, datetime, force,
                 'status': 'error',
                 'reason': e.code,
                 'reason_explanation': e.reason,
-                'require_attention': op.item.checkin_attention or op.order.checkin_attention,
+                'require_attention': op.require_checkin_attention,
                 'position': CheckinListOrderPositionSerializer(op, context=_make_context(context, op.order.event)).data,
                 'list': MiniCheckinListSerializer(list_by_event[op.order.event_id]).data,
             }, status=400)
         else:
             return Response({
                 'status': 'ok',
-                'require_attention': op.item.checkin_attention or op.order.checkin_attention,
+                'require_attention': op.require_checkin_attention,
                 'position': CheckinListOrderPositionSerializer(op, context=_make_context(context, op.order.event)).data,
                 'list': MiniCheckinListSerializer(list_by_event[op.order.event_id]).data,
             }, status=201)
@@ -682,7 +696,7 @@ class CheckinListPositionViewSet(viewsets.ReadOnlyModelViewSet):
     serializer_class = CheckinListOrderPositionSerializer
     queryset = OrderPosition.all.none()
     filter_backends = (ExtendedBackend, RichOrderingFilter)
-    ordering = (F('attendee_name_cached').asc(nulls_last=True), 'positionid')
+    ordering = (F('attendee_name_cached').asc(nulls_last=True), 'pk')
     ordering_fields = (
         'order__code', 'order__datetime', 'positionid', 'attendee_name',
         'last_checked_in', 'order__email',

src/pretix/api/views/discount.py

@@ -36,8 +36,8 @@ from django_filters.rest_framework import DjangoFilterBackend, FilterSet
 from django_scopes import scopes_disabled
 from rest_framework import viewsets
 from rest_framework.exceptions import PermissionDenied
-from rest_framework.filters import OrderingFilter
 
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.discount import DiscountSerializer
 from pretix.api.views import ConditionalListView
 from pretix.base.models import CartPosition, Discount
@@ -52,7 +52,7 @@ with scopes_disabled():
 class DiscountViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = DiscountSerializer
     queryset = Discount.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     filterset_class = DiscountFilter
     ordering_fields = ('id', 'position')
     ordering = ('position', 'id')

src/pretix/api/views/event.py

@@ -39,11 +39,12 @@ from django.db.models import Prefetch, ProtectedError, Q
 from django.utils.timezone import now
 from django_filters.rest_framework import DjangoFilterBackend, FilterSet
 from django_scopes import scopes_disabled
-from rest_framework import filters, serializers, views, viewsets
+from rest_framework import serializers, views, viewsets
 from rest_framework.exceptions import PermissionDenied, ValidationError
 from rest_framework.response import Response
 
 from pretix.api.auth.permission import EventCRUDPermission
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.event import (
     CloneEventSerializer, DeviceEventSettingsSerializer, EventSerializer,
     EventSettingsSerializer, SubEventSerializer, TaxRuleSerializer,
@@ -127,7 +128,7 @@ class EventViewSet(viewsets.ModelViewSet):
     lookup_url_kwarg = 'event'
     lookup_value_regex = '[^/]+'
     permission_classes = (EventCRUDPermission,)
-    filter_backends = (DjangoFilterBackend, filters.OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('slug',)
     ordering_fields = ('date_from', 'slug')
     filterset_class = EventFilter
@@ -379,7 +380,7 @@ class SubEventViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = SubEventSerializer
     queryset = SubEvent.objects.none()
     write_permission = 'can_change_event_settings'
-    filter_backends = (DjangoFilterBackend, filters.OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     filterset_class = SubEventFilter
     ordering = ('date_from',)
     ordering_fields = ('id', 'date_from', 'last_modified')

src/pretix/api/views/item.py

@@ -41,9 +41,9 @@ from django_scopes import scopes_disabled
 from rest_framework import viewsets
 from rest_framework.decorators import action
 from rest_framework.exceptions import PermissionDenied
-from rest_framework.filters import OrderingFilter
 from rest_framework.response import Response
 
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.item import (
     ItemAddOnSerializer, ItemBundleSerializer, ItemCategorySerializer,
     ItemSerializer, ItemVariationSerializer, QuestionOptionSerializer,
@@ -75,7 +75,7 @@ with scopes_disabled():
 class ItemViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = ItemSerializer
     queryset = Item.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering_fields = ('id', 'position')
     ordering = ('position', 'id')
     filterset_class = ItemFilter
@@ -138,7 +138,7 @@ class ItemViewSet(ConditionalListView, viewsets.ModelViewSet):
 class ItemVariationViewSet(viewsets.ModelViewSet):
     serializer_class = ItemVariationSerializer
     queryset = ItemVariation.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter,)
     ordering_fields = ('id', 'position')
     ordering = ('id',)
     permission = None
@@ -208,7 +208,7 @@ class ItemVariationViewSet(viewsets.ModelViewSet):
 class ItemBundleViewSet(viewsets.ModelViewSet):
     serializer_class = ItemBundleSerializer
     queryset = ItemBundle.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter,)
     ordering_fields = ('id',)
     ordering = ('id',)
     permission = None
@@ -260,7 +260,7 @@ class ItemBundleViewSet(viewsets.ModelViewSet):
 class ItemAddOnViewSet(viewsets.ModelViewSet):
     serializer_class = ItemAddOnSerializer
     queryset = ItemAddOn.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter,)
     ordering_fields = ('id', 'position')
     ordering = ('id',)
     permission = None
@@ -318,7 +318,7 @@ class ItemCategoryFilter(FilterSet):
 class ItemCategoryViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = ItemCategorySerializer
     queryset = ItemCategory.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     filterset_class = ItemCategoryFilter
     ordering_fields = ('id', 'position')
     ordering = ('position', 'id')
@@ -373,7 +373,7 @@ with scopes_disabled():
 class QuestionViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = QuestionSerializer
     queryset = Question.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     filterset_class = QuestionFilter
     ordering_fields = ('id', 'position')
     ordering = ('position', 'id')
@@ -418,7 +418,7 @@ class QuestionViewSet(ConditionalListView, viewsets.ModelViewSet):
 class QuestionOptionViewSet(viewsets.ModelViewSet):
     serializer_class = QuestionOptionSerializer
     queryset = QuestionOption.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter,)
     ordering_fields = ('id', 'position')
     ordering = ('position',)
     permission = None
@@ -475,7 +475,7 @@ with scopes_disabled():
 class QuotaViewSet(ConditionalListView, viewsets.ModelViewSet):
     serializer_class = QuotaSerializer
     queryset = Quota.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter,)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter,)
     filterset_class = QuotaFilter
     ordering_fields = ('id', 'size')
     ordering = ('id',)

src/pretix/api/views/order.py

@@ -43,21 +43,21 @@ from rest_framework.decorators import action
 from rest_framework.exceptions import (
     APIException, NotFound, PermissionDenied, ValidationError,
 )
-from rest_framework.filters import OrderingFilter
 from rest_framework.mixins import CreateModelMixin
 from rest_framework.response import Response
 
 from pretix.api.models import OAuthAccessToken
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.order import (
-    InvoiceSerializer, OrderCreateSerializer, OrderPaymentCreateSerializer,
-    OrderPaymentSerializer, OrderPositionSerializer,
-    OrderRefundCreateSerializer, OrderRefundSerializer, OrderSerializer,
-    PriceCalcSerializer, RevokedTicketSecretSerializer,
-    SimulatedOrderSerializer,
+    BlockedTicketSecretSerializer, InvoiceSerializer, OrderCreateSerializer,
+    OrderPaymentCreateSerializer, OrderPaymentSerializer,
+    OrderPositionSerializer, OrderRefundCreateSerializer,
+    OrderRefundSerializer, OrderSerializer, PriceCalcSerializer,
+    RevokedTicketSecretSerializer, SimulatedOrderSerializer,
 )
 from pretix.api.serializers.orderchange import (
-    OrderChangeOperationSerializer, OrderFeeChangeSerializer,
-    OrderPositionChangeSerializer,
+    BlockNameSerializer, OrderChangeOperationSerializer,
+    OrderFeeChangeSerializer, OrderPositionChangeSerializer,
     OrderPositionCreateForExistingOrderSerializer,
     OrderPositionInfoPatchSerializer,
 )
@@ -70,7 +70,9 @@ from pretix.base.models import (
     OrderRefund, Quota, SubEvent, SubEventMetaValue, TaxRule, TeamAPIToken,
     generate_secret,
 )
-from pretix.base.models.orders import QuestionAnswer, RevokedTicketSecret
+from pretix.base.models.orders import (
+    BlockedTicketSecret, QuestionAnswer, RevokedTicketSecret,
+)
 from pretix.base.payment import PaymentException
 from pretix.base.pdf import get_images
 from pretix.base.secrets import assign_ticket_secret
@@ -103,9 +105,9 @@ with scopes_disabled():
         subevent_after = django_filters.IsoDateTimeFilter(method='subevent_after_qs')
         subevent_before = django_filters.IsoDateTimeFilter(method='subevent_before_qs')
         search = django_filters.CharFilter(method='search_qs')
-        item = django_filters.CharFilter(field_name='all_positions', lookup_expr='item_id')
-        variation = django_filters.CharFilter(field_name='all_positions', lookup_expr='variation_id')
-        subevent = django_filters.CharFilter(field_name='all_positions', lookup_expr='subevent_id')
+        item = django_filters.CharFilter(field_name='all_positions', lookup_expr='item_id', distinct=True)
+        variation = django_filters.CharFilter(field_name='all_positions', lookup_expr='variation_id', distinct=True)
+        subevent = django_filters.CharFilter(field_name='all_positions', lookup_expr='subevent_id', distinct=True)
 
         class Meta:
             model = Order
@@ -179,7 +181,7 @@ with scopes_disabled():
 class OrderViewSet(viewsets.ModelViewSet):
     serializer_class = OrderSerializer
     queryset = Order.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('datetime',)
     ordering_fields = ('datetime', 'code', 'status', 'last_modified')
     filterset_class = OrderFilter
@@ -287,7 +289,7 @@ class OrderViewSet(viewsets.ModelViewSet):
         if order.status in (Order.STATUS_CANCELED, Order.STATUS_EXPIRED):
             raise PermissionDenied("Downloads are not available for canceled or expired orders.")
 
-        if order.status == Order.STATUS_PENDING and not request.event.settings.ticket_download_pending:
+        if order.status == Order.STATUS_PENDING and not (order.valid_if_pending or request.event.settings.ticket_download_pending):
             raise PermissionDenied("Downloads are not available for pending orders.")
 
         ct = CachedCombinedTicket.objects.filter(
@@ -763,6 +765,16 @@ class OrderViewSet(viewsets.ModelViewSet):
                     }
                 )
 
+            if 'valid_if_pending' in self.request.data and serializer.instance.valid_if_pending != self.request.data.get('valid_if_pending'):
+                serializer.instance.log_action(
+                    'pretix.event.order.valid_if_pending',
+                    user=self.request.user,
+                    auth=self.request.auth,
+                    data={
+                        'new_value': self.request.data.get('valid_if_pending')
+                    }
+                )
+
             if 'email' in self.request.data and serializer.instance.email != self.request.data.get('email'):
                 serializer.instance.email_known_to_work = False
                 serializer.instance.log_action(
@@ -1183,7 +1195,7 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
         if pos.order.status in (Order.STATUS_CANCELED, Order.STATUS_EXPIRED):
             raise PermissionDenied("Downloads are not available for canceled or expired orders.")
 
-        if pos.order.status == Order.STATUS_PENDING and not request.event.settings.ticket_download_pending:
+        if pos.order.status == Order.STATUS_PENDING and not (pos.order.valid_if_pending or request.event.settings.ticket_download_pending):
             raise PermissionDenied("Downloads are not available for pending orders.")
         if not pos.generate_ticket:
             raise PermissionDenied("Downloads are not enabled for this product.")
@@ -1225,6 +1237,54 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
             raise ValidationError(str(e))
         return self.retrieve(request, [], **kwargs)
 
+    @action(detail=True, methods=['POST'])
+    def add_block(self, request, **kwargs):
+        serializer = BlockNameSerializer(
+            data=request.data,
+            context=self.get_serializer_context(),
+        )
+        serializer.is_valid(raise_exception=True)
+        instance = self.get_object()
+        try:
+            ocm = OrderChangeManager(
+                instance.order,
+                user=self.request.user if self.request.user.is_authenticated else None,
+                auth=self.request.auth,
+                notify=False,
+                reissue_invoice=False,
+            )
+            ocm.add_block(instance, serializer.validated_data['name'])
+            ocm.commit()
+        except OrderError as e:
+            raise ValidationError(str(e))
+        except Quota.QuotaExceededException as e:
+            raise ValidationError(str(e))
+        return self.retrieve(request, [], **kwargs)
+
+    @action(detail=True, methods=['POST'])
+    def remove_block(self, request, **kwargs):
+        serializer = BlockNameSerializer(
+            data=request.data,
+            context=self.get_serializer_context(),
+        )
+        serializer.is_valid(raise_exception=True)
+        instance = self.get_object()
+        try:
+            ocm = OrderChangeManager(
+                instance.order,
+                user=self.request.user if self.request.user.is_authenticated else None,
+                auth=self.request.auth,
+                notify=False,
+                reissue_invoice=False,
+            )
+            ocm.remove_block(instance, serializer.validated_data['name'])
+            ocm.commit()
+        except OrderError as e:
+            raise ValidationError(str(e))
+        except Quota.QuotaExceededException as e:
+            raise ValidationError(str(e))
+        return self.retrieve(request, [], **kwargs)
+
     def perform_destroy(self, instance):
         try:
             ocm = OrderChangeManager(
@@ -1479,21 +1539,27 @@ class PaymentViewSet(CreateModelMixin, viewsets.ReadOnlyModelViewSet):
             source=OrderRefund.REFUND_SOURCE_ADMIN,
             state=OrderRefund.REFUND_STATE_CREATED,
             amount=amount,
-            provider=payment.provider
+            provider=payment.provider,
+            info='{}',
         )
+        payment.order.log_action('pretix.event.order.refund.created', {
+            'local_id': r.local_id,
+            'provider': r.provider,
+        }, user=self.request.user if self.request.user.is_authenticated else None, auth=self.request.auth)
 
         try:
             r.payment_provider.execute_refund(r)
         except PaymentException as e:
             r.state = OrderRefund.REFUND_STATE_FAILED
             r.save()
+            payment.order.log_action('pretix.event.order.refund.failed', {
+                'local_id': r.local_id,
+                'provider': r.provider,
+                'error': str(e)
+            })
             return Response({'detail': 'External error: {}'.format(str(e))},
                             status=status.HTTP_400_BAD_REQUEST)
         else:
-            payment.order.log_action('pretix.event.order.refund.created', {
-                'local_id': r.local_id,
-                'provider': r.provider,
-            }, user=self.request.user if self.request.user.is_authenticated else None, auth=self.request.auth)
             if payment.order.pending_sum > 0:
                 if mark_refunded:
                     mark_order_refunded(payment.order,
@@ -1683,7 +1749,7 @@ class RetryException(APIException):
 class InvoiceViewSet(viewsets.ReadOnlyModelViewSet):
     serializer_class = InvoiceSerializer
     queryset = Invoice.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('nr',)
     ordering_fields = ('nr', 'date')
     filterset_class = InvoiceFilter
@@ -1776,7 +1842,7 @@ with scopes_disabled():
 class RevokedSecretViewSet(viewsets.ReadOnlyModelViewSet):
     serializer_class = RevokedTicketSecretSerializer
     queryset = RevokedTicketSecret.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('-created',)
     ordering_fields = ('created', 'secret')
     filterset_class = RevokedSecretFilter
@@ -1785,3 +1851,25 @@ class RevokedSecretViewSet(viewsets.ReadOnlyModelViewSet):
 
     def get_queryset(self):
         return RevokedTicketSecret.objects.filter(event=self.request.event)
+
+
+with scopes_disabled():
+    class BlockedSecretFilter(FilterSet):
+        updated_since = django_filters.IsoDateTimeFilter(field_name='updated', lookup_expr='gte')
+
+        class Meta:
+            model = BlockedTicketSecret
+            fields = ['blocked']
+
+
+class BlockedSecretViewSet(viewsets.ReadOnlyModelViewSet):
+    serializer_class = BlockedTicketSecretSerializer
+    queryset = BlockedTicketSecret.objects.none()
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
+    ordering = ('-updated', '-pk')
+    filterset_class = BlockedSecretFilter
+    permission = 'can_view_orders'
+    write_permission = 'can_change_orders'
+
+    def get_queryset(self):
+        return BlockedTicketSecret.objects.filter(event=self.request.event)

src/pretix/api/views/organizer.py

@@ -28,9 +28,7 @@ from django.shortcuts import get_object_or_404
 from django.utils.functional import cached_property
 from django_filters.rest_framework import DjangoFilterBackend, FilterSet
 from django_scopes import scopes_disabled
-from rest_framework import (
-    filters, mixins, serializers, status, views, viewsets,
-)
+from rest_framework import mixins, serializers, status, views, viewsets
 from rest_framework.decorators import action
 from rest_framework.exceptions import MethodNotAllowed, PermissionDenied
 from rest_framework.mixins import CreateModelMixin, DestroyModelMixin
@@ -38,6 +36,7 @@ from rest_framework.response import Response
 from rest_framework.viewsets import GenericViewSet
 
 from pretix.api.models import OAuthAccessToken
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.organizer import (
     CustomerCreateSerializer, CustomerSerializer, DeviceSerializer,
     GiftCardSerializer, GiftCardTransactionSerializer, MembershipSerializer,
@@ -51,6 +50,7 @@ from pretix.base.models import (
     User,
 )
 from pretix.base.settings import SETTINGS_AFFECTING_CSS
+from pretix.helpers import OF_SELF
 from pretix.helpers.dicts import merge_dicts
 from pretix.presale.style import regenerate_organizer_css
 
@@ -61,7 +61,7 @@ class OrganizerViewSet(viewsets.ReadOnlyModelViewSet):
     lookup_field = 'slug'
     lookup_url_kwarg = 'organizer'
     lookup_value_regex = '[^/]+'
-    filter_backends = (filters.OrderingFilter,)
+    filter_backends = (TotalOrderingFilter,)
     ordering = ('slug',)
     ordering_fields = ('name', 'slug')
 
@@ -178,7 +178,7 @@ class GiftCardViewSet(viewsets.ModelViewSet):
     def perform_update(self, serializer):
         if 'include_accepted' in self.request.GET:
             raise PermissionDenied("Accepted gift cards cannot be updated, use transact instead.")
-        GiftCard.objects.select_for_update().get(pk=self.get_object().pk)
+        GiftCard.objects.select_for_update(of=OF_SELF).get(pk=self.get_object().pk)
         old_value = serializer.instance.value
         value = serializer.validated_data.pop('value')
         inst = serializer.save(secret=serializer.instance.secret, currency=serializer.instance.currency,
@@ -196,7 +196,7 @@ class GiftCardViewSet(viewsets.ModelViewSet):
     @action(detail=True, methods=["POST"])
     @transaction.atomic()
     def transact(self, request, **kwargs):
-        gc = GiftCard.objects.select_for_update().get(pk=self.get_object().pk)
+        gc = GiftCard.objects.select_for_update(of=OF_SELF).get(pk=self.get_object().pk)
         value = serializers.DecimalField(max_digits=10, decimal_places=2).to_internal_value(
             request.data.get('value')
         )

src/pretix/api/views/upload.py

@@ -21,6 +21,7 @@
 #
 import datetime
 
+from django.core.exceptions import ValidationError as DjangoValidationError
 from django.utils.timezone import now
 from oauth2_provider.contrib.rest_framework import OAuth2Authentication
 from rest_framework.authentication import SessionAuthentication
@@ -33,6 +34,9 @@ from pretix.api.auth.device import DeviceTokenAuthentication
 from pretix.api.auth.permission import AnyAuthenticatedClientPermission
 from pretix.api.auth.token import TeamTokenAuthentication
 from pretix.base.models import CachedFile
+from pretix.helpers.images import (
+    IMAGE_TYPES, validate_uploaded_file_for_valid_image,
+)
 
 ALLOWED_TYPES = {
     'image/gif': {'.gif'},
@@ -61,6 +65,13 @@ class UploadView(APIView):
                 name=file_obj.name,
                 type=content_type
             ))
+
+        if content_type in IMAGE_TYPES:
+            try:
+                validate_uploaded_file_for_valid_image(file_obj)
+            except DjangoValidationError as e:
+                raise ValidationError(e.message)
+
         cf = CachedFile.objects.create(
             expires=now() + datetime.timedelta(days=1),
             date=now(),

src/pretix/api/views/voucher.py

@@ -31,9 +31,9 @@ from django_scopes import scopes_disabled
 from rest_framework import status, viewsets
 from rest_framework.decorators import action
 from rest_framework.exceptions import PermissionDenied
-from rest_framework.filters import OrderingFilter
 from rest_framework.response import Response
 
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.voucher import VoucherSerializer
 from pretix.base.models import Voucher
 
@@ -59,7 +59,7 @@ with scopes_disabled():
 class VoucherViewSet(viewsets.ModelViewSet):
     serializer_class = VoucherSerializer
     queryset = Voucher.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('id',)
     ordering_fields = ('id', 'code', 'max_usages', 'valid_until', 'value')
     filterset_class = VoucherFilter

src/pretix/api/views/waitinglist.py

@@ -25,9 +25,9 @@ from django_scopes import scopes_disabled
 from rest_framework import viewsets
 from rest_framework.decorators import action
 from rest_framework.exceptions import PermissionDenied, ValidationError
-from rest_framework.filters import OrderingFilter
 from rest_framework.response import Response
 
+from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.waitinglist import WaitingListSerializer
 from pretix.base.models import WaitingListEntry
 from pretix.base.models.waitinglist import WaitingListException
@@ -47,8 +47,8 @@ with scopes_disabled():
 class WaitingListViewSet(viewsets.ModelViewSet):
     serializer_class = WaitingListSerializer
     queryset = WaitingListEntry.objects.none()
-    filter_backends = (DjangoFilterBackend, OrderingFilter)
-    ordering = ('created',)
+    filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
+    ordering = ('created', 'pk',)
     ordering_fields = ('id', 'created', 'email', 'item')
     filterset_class = WaitingListFilter
     permission = 'can_view_orders'

src/pretix/api/webhooks.py

@@ -42,6 +42,7 @@ from pretix.base.models import LogEntry
 from pretix.base.services.tasks import ProfiledTask, TransactionAwareTask
 from pretix.base.signals import periodic_task
 from pretix.celery_app import app
+from pretix.helpers import OF_SELF
 
 logger = logging.getLogger(__name__)
 _ALL_EVENTS = None
@@ -95,7 +96,7 @@ def get_all_webhook_events():
     return types
 
 
-class ParametrizedOrderWebhookEvent(WebhookEvent):
+class ParametrizedWebhookEvent(WebhookEvent):
     def __init__(self, action_type, verbose_name):
         self._action_type = action_type
         self._verbose_name = verbose_name
@@ -109,6 +110,8 @@ class ParametrizedOrderWebhookEvent(WebhookEvent):
     def verbose_name(self):
         return self._verbose_name
 
+
+class ParametrizedOrderWebhookEvent(ParametrizedWebhookEvent):
     def build_payload(self, logentry: LogEntry):
         order = logentry.content_object
         if not order:
@@ -123,19 +126,7 @@ class ParametrizedOrderWebhookEvent(WebhookEvent):
         }
 
 
-class ParametrizedEventWebhookEvent(WebhookEvent):
-    def __init__(self, action_type, verbose_name):
-        self._action_type = action_type
-        self._verbose_name = verbose_name
-        super().__init__()
-
-    @property
-    def action_type(self):
-        return self._action_type
-
-    @property
-    def verbose_name(self):
-        return self._verbose_name
+class ParametrizedEventWebhookEvent(ParametrizedWebhookEvent):
 
     def build_payload(self, logentry: LogEntry):
         if logentry.action_type == 'pretix.event.deleted':
@@ -159,19 +150,7 @@ class ParametrizedEventWebhookEvent(WebhookEvent):
         }
 
 
-class ParametrizedSubEventWebhookEvent(WebhookEvent):
-    def __init__(self, action_type, verbose_name):
-        self._action_type = action_type
-        self._verbose_name = verbose_name
-        super().__init__()
-
-    @property
-    def action_type(self):
-        return self._action_type
-
-    @property
-    def verbose_name(self):
-        return self._verbose_name
+class ParametrizedSubEventWebhookEvent(ParametrizedWebhookEvent):
 
     def build_payload(self, logentry: LogEntry):
         # do not use content_object, this is also called in deletion
@@ -184,6 +163,19 @@ class ParametrizedSubEventWebhookEvent(WebhookEvent):
         }
 
 
+class ParametrizedItemWebhookEvent(ParametrizedWebhookEvent):
+
+    def build_payload(self, logentry: LogEntry):
+        # do not use content_object, this is also called in deletion
+        return {
+            'notification_id': logentry.pk,
+            'organizer': logentry.event.organizer.slug,
+            'event': logentry.event.slug,
+            'item': logentry.object_id,
+            'action': logentry.action_type,
+        }
+
+
 class ParametrizedOrderPositionWebhookEvent(ParametrizedOrderWebhookEvent):
 
     def build_payload(self, logentry: LogEntry):
@@ -304,6 +296,11 @@ def register_default_webhook_events(sender, **kwargs):
             'pretix.subevent.deleted',
             pgettext_lazy('subevent', 'Event series date deleted'),
         ),
+        ParametrizedItemWebhookEvent(
+            'pretix.event.item.*',
+            _('Product changed (including product added or deleted and including changes to nested objects like '
+              'variations or bundles)'),
+        ),
         ParametrizedEventWebhookEvent(
             'pretix.event.live.activated',
             _('Shop taken live'),
@@ -502,7 +499,8 @@ def manually_retry_all_calls(webhook_id: int):
         webhook = WebHook.objects.get(id=webhook_id)
     with scope(organizer=webhook.organizer), transaction.atomic():
         for whcr in webhook.retries.select_for_update(
-            skip_locked=connection.features.has_select_for_update_skip_locked
+            skip_locked=connection.features.has_select_for_update_skip_locked,
+            of=OF_SELF
         ):
             send_webhook.apply_async(
                 args=(whcr.logentry_id, whcr.action_type, whcr.webhook_id, whcr.retry_count),
@@ -515,7 +513,8 @@ def manually_retry_all_calls(webhook_id: int):
 def schedule_webhook_retries_on_celery(sender, **kwargs):
     with transaction.atomic():
         for whcr in WebHookCallRetry.objects.select_for_update(
-            skip_locked=connection.features.has_select_for_update_skip_locked
+            skip_locked=connection.features.has_select_for_update_skip_locked,
+            of=OF_SELF
         ).filter(retry_not_before__lt=now()):
             send_webhook.apply_async(
                 args=(whcr.logentry_id, whcr.action_type, whcr.webhook_id, whcr.retry_count),

src/pretix/base/addressvalidation.py

@@ -42,7 +42,6 @@ from localflavor.fr.forms import FRZipCodeField
 from localflavor.gb.forms import GBPostcodeField
 from localflavor.gr.forms import GRPostalCodeField
 from localflavor.hr.forms import HRPostalCodeField
-from localflavor.id_.forms import IDPostCodeField
 from localflavor.ie.forms import EircodeField
 from localflavor.il.forms import ILPostalCodeField
 from localflavor.in_.forms import INZipCodeField
@@ -80,8 +79,8 @@ COUNTRIES_WITH_STREET_ZIPCODE_AND_CITY_REQUIRED = {
     # We don't presume this for countries we don't have knowledge about, there are countries in the
     # world e.g. without zipcodes
     'AR', 'AT', 'AU', 'BE', 'BR', 'CA', 'CH', 'CN', 'CU', 'CZ', 'DE', 'DK', 'EE', 'ES', 'FI', 'FR',
-    'GB', 'GR', 'HR', 'ID', 'IE', 'IL', 'IN', 'IR', 'IS', 'IT', 'JP', 'LT', 'LV', 'MA', 'MT', 'MX',
-    'NL', 'NO', 'NZ', 'PK', 'PL', 'PT', 'RO', 'RU', 'SE', 'SG', 'SI', 'SK', 'TR', 'UA', 'US', 'ZA',
+    'GB', 'GR', 'HR', 'IE', 'IL', 'IN', 'IR', 'IS', 'IT', 'JP', 'LT', 'LV', 'MA', 'MT', 'MX', 'NL',
+    'NO', 'NZ', 'PK', 'PL', 'PT', 'RO', 'RU', 'SE', 'SG', 'SI', 'SK', 'TR', 'UA', 'US', 'ZA',
 }
 
 
@@ -167,7 +166,6 @@ _zip_code_fields = {
     'GB': GBPostcodeField,
     'GR': GRPostalCodeField,
     'HR': HRPostalCodeField,
-    'ID': IDPostCodeField,
     'IE': EircodeField,
     'IL': ILPostalCodeField,
     'IN': INZipCodeField,

src/pretix/base/apps.py

@@ -46,7 +46,7 @@ class PretixBaseConfig(AppConfig):
         from . import invoice  # NOQA
         from . import notifications  # NOQA
         from . import email  # NOQA
-        from .services import auth, checkin, export, mail, tickets, cart, orderimport, orders, invoices, cleanup, update_check, quotas, notifications, vouchers  # NOQA
+        from .services import auth, checkin, currencies, export, mail, tickets, cart, orderimport, orders, invoices, cleanup, update_check, quotas, notifications, vouchers  # NOQA
         from .models import _transactions  # NOQA
         from django.conf import settings
 

src/pretix/base/email.py

@@ -381,11 +381,24 @@ def base_placeholders(sender, **kwargs):
         SimpleFunctionalMailTextPlaceholder(
             'currency', ['event'], lambda event: event.currency, lambda event: event.currency
         ),
+        SimpleFunctionalMailTextPlaceholder(
+            'order_email', ['order'], lambda order: order.email, 'john@example.org'
+        ),
+        SimpleFunctionalMailTextPlaceholder(
+            'invoice_number', ['invoice'],
+            lambda invoice: invoice.full_invoice_no,
+            f'{sender.settings.invoice_numbers_prefix or (sender.slug.upper() + "-")}00000'
+        ),
         SimpleFunctionalMailTextPlaceholder(
             'refund_amount', ['event_or_subevent', 'refund_amount'],
             lambda event_or_subevent, refund_amount: LazyCurrencyNumber(refund_amount, event_or_subevent.currency),
             lambda event_or_subevent: LazyCurrencyNumber(Decimal('42.23'), event_or_subevent.currency)
         ),
+        SimpleFunctionalMailTextPlaceholder(
+            'pending_sum', ['event', 'pending_sum'],
+            lambda event, pending_sum: LazyCurrencyNumber(pending_sum, event.currency),
+            lambda event: LazyCurrencyNumber(Decimal('42.23'), event.currency)
+        ),
         SimpleFunctionalMailTextPlaceholder(
             'total_with_currency', ['event', 'order'], lambda event, order: LazyCurrencyNumber(order.total,
                                                                                                event.currency),
@@ -512,20 +525,20 @@ def base_placeholders(sender, **kwargs):
             lambda event: (event if not event.has_subevents or not event.subevents.exists() else event.subevents.first()).get_date_from_display()
         ),
         SimpleFunctionalMailTextPlaceholder(
-            'url_remove', ['waiting_list_entry', 'event'],
-            lambda waiting_list_entry, event: build_absolute_uri(
+            'url_remove', ['waiting_list_voucher', 'event'],
+            lambda waiting_list_voucher, event: build_absolute_uri(
                 event, 'presale:event.waitinglist.remove'
-            ) + '?voucher=' + waiting_list_entry.voucher.code,
+            ) + '?voucher=' + waiting_list_voucher.code,
             lambda event: build_absolute_uri(
                 event,
                 'presale:event.waitinglist.remove',
             ) + '?voucher=68CYU2H6ZTP3WLK5',
         ),
         SimpleFunctionalMailTextPlaceholder(
-            'url', ['waiting_list_entry', 'event'],
-            lambda waiting_list_entry, event: build_absolute_uri(
+            'url', ['waiting_list_voucher', 'event'],
+            lambda waiting_list_voucher, event: build_absolute_uri(
                 event, 'presale:event.redeem'
-            ) + '?voucher=' + waiting_list_entry.voucher.code,
+            ) + '?voucher=' + waiting_list_voucher.code,
             lambda event: build_absolute_uri(
                 event,
                 'presale:event.redeem',
@@ -580,7 +593,7 @@ def base_placeholders(sender, **kwargs):
             _('Sample Admission Ticket')
         ),
         SimpleFunctionalMailTextPlaceholder(
-            'code', ['waiting_list_entry'], lambda waiting_list_entry: waiting_list_entry.voucher.code,
+            'code', ['waiting_list_voucher'], lambda waiting_list_voucher: waiting_list_voucher.code,
             '68CYU2H6ZTP3WLK5'
         ),
         SimpleFunctionalMailTextPlaceholder(

src/pretix/base/exporter.py

@@ -36,7 +36,7 @@ import io
 import tempfile
 from collections import OrderedDict, namedtuple
 from decimal import Decimal
-from typing import Tuple
+from typing import Optional, Tuple
 
 import pytz
 from defusedcsv import csv
@@ -84,6 +84,27 @@ class BaseExporter:
         """
         raise NotImplementedError()  # NOQA
 
+    @property
+    def description(self) -> str:
+        """
+        A description for this exporter.
+        """
+        return ""
+
+    @property
+    def category(self) -> Optional[str]:
+        """
+        A category name for this exporter, or ``None``.
+        """
+        return None
+
+    @property
+    def featured(self) -> bool:
+        """
+        If ``True``, this exporter will be highlighted.
+        """
+        return False
+
     @property
     def identifier(self) -> str:
         """

src/pretix/base/exporters/answers.py

@@ -39,7 +39,7 @@ from zipfile import ZipFile
 
 from django import forms
 from django.dispatch import receiver
-from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, pgettext_lazy
 
 from pretix.base.models import QuestionAnswer
 
@@ -49,7 +49,10 @@ from ..signals import register_data_exporters
 
 class AnswerFilesExporter(BaseExporter):
     identifier = 'answerfiles'
-    verbose_name = _('Answers to file upload questions')
+    verbose_name = _('Question answer file uploads')
+    category = pgettext_lazy('export_category', 'Order data')
+    description = _('Download a ZIP file including all files that have been uploaded by your customers while creating '
+                    'an order.')
 
     @property
     def export_form_fields(self):

src/pretix/base/exporters/customers.py

@@ -36,7 +36,7 @@ from collections import OrderedDict
 
 from django.dispatch import receiver
 from django.utils.timezone import get_current_timezone
-from django.utils.translation import gettext as _, gettext_lazy
+from django.utils.translation import gettext as _, gettext_lazy, pgettext_lazy
 
 from pretix.base.settings import PERSON_NAME_SCHEMES
 
@@ -48,6 +48,8 @@ class CustomerListExporter(OrganizerLevelExportMixin, ListExporter):
     identifier = 'customerlist'
     verbose_name = gettext_lazy('Customer accounts')
     organizer_required_permission = 'can_manage_customers'
+    category = pgettext_lazy('export_category', 'Customer accounts')
+    description = gettext_lazy('Download a spreadsheet of all currently registered customer accounts.')
 
     @property
     def additional_form_fields(self):

src/pretix/base/exporters/dekodi.py

@@ -23,22 +23,24 @@ import json
 from collections import OrderedDict
 from decimal import Decimal
 
-import dateutil
-from django import forms
 from django.core.serializers.json import DjangoJSONEncoder
 from django.dispatch import receiver
-from django.utils.translation import gettext, gettext_lazy
+from django.utils.timezone import now
+from django.utils.translation import gettext, gettext_lazy, pgettext_lazy
 
 from pretix.base.i18n import language
 from pretix.base.models import Invoice, OrderPayment
 
 from ..exporter import BaseExporter
 from ..signals import register_data_exporters
+from ..timeframes import DateFrameField, resolve_timeframe_to_dates_inclusive
 
 
 class DekodiNREIExporter(BaseExporter):
     identifier = 'dekodi_nrei'
     verbose_name = 'dekodi NREI (JSON)'
+    category = pgettext_lazy('export_category', 'Invoices')
+    description = gettext_lazy("Download invoices in a format that can be used by the dekodi NREI conversion software.")
 
     # Specification: http://manuals.dekodi.de/nexuspub/schnittstellenbuch/
 
@@ -113,7 +115,7 @@ class DekodiNREIExporter(BaseExporter):
                         'PTNo14': p.info_data.get('reference') or '',
                         'PTNo15': p.full_id or '',
                     })
-            elif p.provider.startswith('stripe'):
+            elif p.provider and p.provider.startswith('stripe'):
                 src = p.info_data.get("source", p.info_data)
                 payments.append({
                     'PTID': '81',
@@ -192,17 +194,12 @@ class DekodiNREIExporter(BaseExporter):
     def render(self, form_data):
         qs = self.event.invoices.select_related('order').prefetch_related('lines', 'lines__subevent')
 
-        if form_data.get('date_from'):
-            date_value = form_data.get('date_from')
-            if isinstance(date_value, str):
-                date_value = dateutil.parser.parse(date_value).date()
-            qs = qs.filter(date__gte=date_value)
-
-        if form_data.get('date_to'):
-            date_value = form_data.get('date_to')
-            if isinstance(date_value, str):
-                date_value = dateutil.parser.parse(date_value).date()
-            qs = qs.filter(date__lte=date_value)
+        if form_data.get('date_range'):
+            d_start, d_end = resolve_timeframe_to_dates_inclusive(now(), form_data['date_range'], self.timezone)
+            if d_start:
+                qs = qs.filter(date__gte=d_start)
+            if d_end:
+                qs = qs.filter(date__lte=d_end)
 
         jo = {
             'Format': 'NREI',
@@ -218,22 +215,14 @@ class DekodiNREIExporter(BaseExporter):
     def export_form_fields(self):
         return OrderedDict(
             [
-                ('date_from',
-                 forms.DateField(
-                     label=gettext_lazy('Start date'),
-                     widget=forms.DateInput(attrs={'class': 'datepickerfield'}),
+                ('date_range',
+                 DateFrameField(
+                     label=gettext_lazy('Date range'),
+                     include_future_frames=False,
                      required=False,
-                     help_text=gettext_lazy('Only include invoices issued on or after this date. Note that the invoice date does '
+                     help_text=gettext_lazy('Only include invoices issued in this time frame. Note that the invoice date does '
                                             'not always correspond to the order or payment date.')
                  )),
-                ('date_to',
-                 forms.DateField(
-                     label=gettext_lazy('End date'),
-                     widget=forms.DateInput(attrs={'class': 'datepickerfield'}),
-                     required=False,
-                     help_text=gettext_lazy('Only include invoices issued on or before this date. Note that the invoice date '
-                                            'does not always correspond to the order or payment date.')
-                 )),
             ]
         )
 

src/pretix/base/exporters/events.py

@@ -35,7 +35,7 @@
 from django.dispatch import receiver
 from django.utils.formats import date_format
 from django.utils.functional import cached_property
-from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, pgettext_lazy
 
 from ...control.forms.filter import get_all_payment_providers
 from ..exporter import ListExporter
@@ -45,6 +45,8 @@ from ..signals import register_multievent_data_exporters
 class EventDataExporter(ListExporter):
     identifier = 'eventdata'
     verbose_name = _('Event data')
+    category = pgettext_lazy('export_category', 'Event data')
+    description = _('Download a spreadsheet with information on all events in this organizer account.')
 
     @cached_property
     def providers(self):

src/pretix/base/exporters/invoices.py

@@ -38,13 +38,15 @@ from collections import OrderedDict
 from decimal import Decimal
 from zipfile import ZipFile
 
-import dateutil.parser
 from django import forms
 from django.db.models import CharField, Exists, F, OuterRef, Q, Subquery, Sum
 from django.dispatch import receiver
 from django.utils.formats import date_format
 from django.utils.functional import cached_property
-from django.utils.translation import gettext, gettext_lazy as _, pgettext
+from django.utils.timezone import now
+from django.utils.translation import (
+    gettext, gettext_lazy as _, pgettext, pgettext_lazy,
+)
 
 from pretix.base.models import Invoice, InvoiceLine, OrderPayment
 
@@ -57,30 +59,24 @@ from ..services.invoices import invoice_pdf_task
 from ..signals import (
     register_data_exporters, register_multievent_data_exporters,
 )
+from ..timeframes import DateFrameField, resolve_timeframe_to_dates_inclusive
 
 
 class InvoiceExporterMixin:
+    category = pgettext_lazy('export_category', 'Invoices')
 
     @property
     def invoice_exporter_form_fields(self):
         return OrderedDict(
             [
-                ('date_from',
-                 forms.DateField(
-                     label=_('Start date'),
-                     widget=forms.DateInput(attrs={'class': 'datepickerfield'}),
+                ('date_range',
+                 DateFrameField(
+                     label=_('Date range'),
+                     include_future_frames=False,
                      required=False,
-                     help_text=_('Only include invoices issued on or after this date. Note that the invoice date does '
+                     help_text=_('Only include invoices issued in this time frame. Note that the invoice date does '
                                  'not always correspond to the order or payment date.')
                  )),
-                ('date_to',
-                 forms.DateField(
-                     label=_('End date'),
-                     widget=forms.DateInput(attrs={'class': 'datepickerfield'}),
-                     required=False,
-                     help_text=_('Only include invoices issued on or before this date. Note that the invoice date '
-                                 'does not always correspond to the order or payment date.')
-                 )),
                 ('payment_provider',
                  forms.ChoiceField(
                      label=_('Payment provider'),
@@ -112,16 +108,12 @@ class InvoiceExporterMixin:
                 )
             )
             qs = qs.filter(has_payment_with_provider=1)
-        if form_data.get('date_from'):
-            date_value = form_data.get('date_from')
-            if isinstance(date_value, str):
-                date_value = dateutil.parser.parse(date_value).date()
-            qs = qs.filter(date__gte=date_value)
-        if form_data.get('date_to'):
-            date_value = form_data.get('date_to')
-            if isinstance(date_value, str):
-                date_value = dateutil.parser.parse(date_value).date()
-            qs = qs.filter(date__lte=date_value)
+        if form_data.get('date_range'):
+            d_start, d_end = resolve_timeframe_to_dates_inclusive(now(), form_data['date_range'], self.timezone)
+            if d_start:
+                qs = qs.filter(date__gte=d_start)
+            if d_end:
+                qs = qs.filter(date__lte=d_end)
 
         return qs
 
@@ -129,6 +121,7 @@ class InvoiceExporterMixin:
 class InvoiceExporter(InvoiceExporterMixin, BaseExporter):
     identifier = 'invoices'
     verbose_name = _('All invoices')
+    description = _('Download all invoices created by the system as a ZIP file of PDF files.')
 
     def render(self, form_data: dict, output_file=None):
         qs = self.invoices_queryset(form_data).filter(shredded=False)
@@ -180,6 +173,10 @@ class InvoiceExporter(InvoiceExporterMixin, BaseExporter):
 class InvoiceDataExporter(InvoiceExporterMixin, MultiSheetListExporter):
     identifier = 'invoicedata'
     verbose_name = _('Invoice data')
+    description = _('Download a spreadsheet with the data of all invoices created by the system. The spreadsheet '
+                    'includes two sheets, one with a line for every invoice, and one with a line for every position of '
+                    'every invoice.')
+    featured = True
 
     @property
     def additional_form_fields(self):

src/pretix/base/exporters/items.py

@@ -22,7 +22,7 @@
 from django.db.models import Prefetch
 from django.dispatch import receiver
 from django.utils.formats import date_format
-from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, pgettext_lazy
 from openpyxl.styles import Alignment
 from openpyxl.utils import get_column_letter
 
@@ -48,6 +48,8 @@ def _min(a1, a2):
 class ItemDataExporter(ListExporter):
     identifier = 'itemdata'
     verbose_name = _('Product data')
+    category = pgettext_lazy('export_category', 'Product data')
+    description = _('Download a spreadsheet with details about all products and variations.')
 
     def iterate_list(self, form_data):
         locales = self.event.settings.locales
@@ -73,6 +75,7 @@ class ItemDataExporter(ListExporter):
             _("Free price input"),
             _("Sales tax"),
             _("Is an admission ticket"),
+            _("Personalized ticket"),
             _("Generate tickets"),
             _("Waiting list"),
             _("Available from"),
@@ -144,6 +147,7 @@ class ItemDataExporter(ListExporter):
                         _("Yes") if i.free_price else "",
                         str(i.tax_rule) if i.tax_rule else "",
                         _("Yes") if i.admission else "",
+                        _("Yes") if i.personalized else "",
                         _("Yes") if i.generate_tickets else (_("Default") if i.generate_tickets is None else ""),
                         _("Yes") if i.allow_waitinglist else "",
                         date_format(_max(i.available_from, v.available_from).astimezone(self.timezone),
@@ -187,6 +191,7 @@ class ItemDataExporter(ListExporter):
                     _("Yes") if i.free_price else "",
                     str(i.tax_rule) if i.tax_rule else "",
                     _("Yes") if i.admission else "",
+                    _("Yes") if i.personalized else "",
                     _("Yes") if i.generate_tickets else (_("Default") if i.generate_tickets is None else ""),
                     _("Yes") if i.allow_waitinglist else "",
                     date_format(i.available_from.astimezone(self.timezone),

src/pretix/base/exporters/json.py

@@ -38,6 +38,8 @@ from decimal import Decimal
 from django.core.serializers.json import DjangoJSONEncoder
 from django.db.models import Prefetch
 from django.dispatch import receiver
+from django.utils.functional import lazy
+from django.utils.translation import gettext, gettext_lazy, pgettext_lazy
 
 from ..exporter import BaseExporter
 from ..models import ItemMetaValue, ItemVariation, ItemVariationMetaValue
@@ -46,7 +48,10 @@ from ..signals import register_data_exporters
 
 class JSONExporter(BaseExporter):
     identifier = 'json'
-    verbose_name = 'Order data (JSON)'
+    verbose_name = lazy(lambda *args: gettext('Order data') + ' (JSON)', str)()
+    category = pgettext_lazy('export_category', 'Order data')
+    description = gettext_lazy('Download a structured JSON representation of all orders. This might be useful for the '
+                               'import in third-party systems.')
 
     def render(self, form_data):
         jo = {
@@ -78,6 +83,7 @@ class JSONExporter(BaseExporter):
                         'tax_rate': item.tax_rule.rate if item.tax_rule else Decimal('0.00'),
                         'tax_name': str(item.tax_rule.name) if item.tax_rule else None,
                         'admission': item.admission,
+                        'personalized': item.personalized,
                         'active': item.active,
                         'sales_channels': item.sales_channels,
                         'description': str(item.description),
@@ -103,6 +109,8 @@ class JSONExporter(BaseExporter):
                                 'name': str(variation),
                                 'description': str(variation.description),
                                 'position': variation.position,
+                                'checkin_attention': variation.checkin_attention,
+                                'require_approval': variation.require_approval,
                                 'require_membership': variation.require_membership,
                                 'sales_channels': variation.sales_channels,
                                 'available_from': variation.available_from,
@@ -187,6 +195,9 @@ class JSONExporter(BaseExporter):
                                 'state': position.state,
                                 'secret': position.secret,
                                 'addon_to': position.addon_to_id,
+                                'valid_from': position.valid_from,
+                                'valid_until': position.valid_until,
+                                'blocked': position.blocked,
                                 'answers': [
                                     {
                                         'question': answer.question_id,

src/pretix/base/exporters/mail.py

@@ -36,7 +36,7 @@ from collections import OrderedDict
 
 from django import forms
 from django.dispatch import receiver
-from django.utils.translation import gettext_lazy as _
+from django.utils.translation import gettext_lazy as _, pgettext_lazy
 
 from pretix.base.models import OrderPosition
 
@@ -50,6 +50,8 @@ from ..signals import (
 class MailExporter(BaseExporter):
     identifier = 'mailaddrs'
     verbose_name = _('Email addresses (text file)')
+    category = pgettext_lazy('export_category', 'Order data')
+    description = _("Download a text file with all email addresses collected either from buyers or from ticket holders.")
 
     def render(self, form_data: dict):
         qs = Order.objects.filter(event__in=self.events, status__in=form_data['status']).prefetch_related('event')