Revert "Redesign of email settings (#2426)"

This reverts commit e3c7cd7c6d.

.github/workflows/tests.yml

@@ -18,17 +18,17 @@ jobs:
     name: Tests
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: ["3.7", "3.8", "3.9"]
         database: [sqlite, postgres, mysql]
         exclude:
           - database: mysql
-            python-version: 3.7
-          - database: sqlite
-            python-version: 3.7
+            python-version: "3.8"
           - database: mysql
-            python-version: 3.6
+            python-version: "3.9"
           - database: sqlite
-            python-version: 3.6
+            python-version: "3.7"
+          - database: sqlite
+            python-version: "3.8"
     steps:
       - uses: actions/checkout@v2
       - uses: getong/mariadb-action@v1.1
@@ -55,7 +55,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install system dependencies
-        run: sudo apt update && sudo apt install gettext mysql-client
+        run: sudo apt update && sudo apt install gettext mariadb-client
       - name: Install Python dependencies
         run: pip3 install -e ".[dev]" mysqlclient psycopg2-binary
         working-directory: ./src

doc/admin/config.rst

@@ -282,7 +282,7 @@ You can use an existing memcached server as pretix's caching backend::
 ``location``
     The location of memcached, either a host:port combination or a socket file.
 
-If no memcached is configured, pretix will use Django's built-in local-memory caching method.
+If no memcached is configured, pretix will use redis for caching. If neither is configured, pretix will not use any caching.
 
 .. note:: If you use memcached and you deploy pretix across multiple servers, you should use *one*
           shared memcached instance, not multiple ones, because cache invalidations would not be
@@ -445,8 +445,10 @@ You can configure the maximum file size for uploading various files::
     max_size_image = 12
     ; Max upload size for favicons in MiB, defaults to 1 MiB
     max_size_favicon = 2
-    ; Max upload size for email attachments in MiB, defaults to 10 MiB
+    ; Max upload size for email attachments of manually sent emails in MiB, defaults to 10 MiB
     max_size_email_attachment = 15
+    ; Max upload size for email attachments of automatically sent emails in MiB, defaults to 1 MiB
+    max_size_email_auto_attachment = 2
     ; Max upload size for other files in MiB, defaults to 10 MiB
     ; This includes all file upload type order questions
     max_size_other = 100

doc/admin/installation/manual_smallscale.rst

@@ -142,7 +142,7 @@ If you're running MySQL, also install the client library::
 
     (venv)$ pip3 install mysqlclient
 
-Note that you need Python 3.6 or newer. You can find out your Python version using ``python -V``.
+Note that you need Python 3.7 or newer. You can find out your Python version using ``python -V``.
 
 We also need to create a data directory::
 
@@ -259,14 +259,14 @@ The following snippet is an example on how to configure a nginx proxy for pretix
         }
 
         location /static/ {
-            alias /var/pretix/venv/lib/python3.7/site-packages/pretix/static.dist/;
+            alias /var/pretix/venv/lib/python3.10/site-packages/pretix/static.dist/;
             access_log off;
             expires 365d;
             add_header Cache-Control "public";
         }
     }
 
-.. note:: Remember to replace the ``python3.7`` in the ``/static/`` path in the config 
+.. note:: Remember to replace the ``python3.10`` in the ``/static/`` path in the config
           above with your python version.
 
 We recommend reading about setting `strong encryption settings`_ for your web server.

doc/api/guides/custom_checkout.rst

@@ -97,7 +97,8 @@ For example, if you want users to be redirected to ``https://example.org/order/r
 either enter ``https://example.org`` or ``https://example.org/order/``.
 
 The user will be redirected back to your page instead of pretix' order confirmation page after the payment,
-**regardless of whether it was successful or not**. Make sure you use our API to check if the payment actually
+**regardless of whether it was successful or not**. We will append an ``error=…`` query parameter with an error
+message, but you should not rely on that and instead make sure you use our API to check if the payment actually
 worked! Your final URL could look like this::
 
     https://test.pretix.eu/democon/3vjrh/order/NSLEZ/ujbrnsjzbq4dzhck/pay/123/?return_url=https%3A%2F%2Fexample.org%2Forder%2Freturn%3Ftx_id%3D1234

doc/api/resources/invoices.rst

@@ -58,6 +58,12 @@ lines                                 list of objects            The actual invo
                                                                  created before this field was introduced as well as for
                                                                  all lines not created by a product (e.g. a shipping or
                                                                  cancellation fee).
+├ subevent                            integer                    Event series date ID used to create this line. Note that everything
+                                                                 about the subevent might have changed since the creation
+                                                                 of the invoice. Can be ``null`` for all invoice lines
+                                                                 created before this field was introduced as well as for
+                                                                 all lines not created by a product (e.g. a shipping or
+                                                                 cancellation fee) as well as for all events that are not a series.
 ├ fee_type                            string                     Fee type, e.g. ``shipping``, ``service``, ``payment``,
                                                                  ``cancellation``, ``giftcard``, or ``other. Can be ``null`` for
                                                                  all invoice lines
@@ -120,6 +126,10 @@ internal_reference                    string                     Customer's refe
 
    The attribute ``lines.event_location`` has been added.
 
+.. versionchanged:: 4.6
+
+   The attribute ``lines.subevent`` has been added.
+
 
 Endpoints
 ---------
@@ -185,6 +195,7 @@ Endpoints
                 "description": "Budget Ticket",
                 "item": 1234,
                 "variation": 245,
+                "subevent": null,
                 "fee_type": null,
                 "fee_internal_type": null,
                 "event_date_from": "2017-12-27T10:00:00Z",
@@ -274,6 +285,7 @@ Endpoints
             "description": "Budget Ticket",
             "item": 1234,
             "variation": 245,
+            "subevent": null,
             "fee_type": null,
             "fee_internal_type": null,
             "event_date_from": "2017-12-27T10:00:00Z",

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
+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.
@@ -76,6 +79,7 @@ Endpoints
               "en": "S"
             },
             "active": true,
+            "require_approval": false,
             "require_membership": false,
             "require_membership_hidden": false,
             "require_membership_types": [],
@@ -97,6 +101,7 @@ Endpoints
               "en": "L"
             },
             "active": true,
+            "require_approval": false,
             "require_membership": false,
             "require_membership_hidden": false,
             "require_membership_types": [],
@@ -147,6 +152,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": true,
+        "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
         "require_membership_types": [],
@@ -183,6 +189,7 @@ Endpoints
         "value": {"en": "Student"},
         "default_price": "10.00",
         "active": true,
+        "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
         "require_membership_types": [],
@@ -209,6 +216,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": true,
+        "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
         "require_membership_types": [],
@@ -266,6 +274,7 @@ Endpoints
         "price": "10.00",
         "original_price": null,
         "active": false,
+        "require_approval": false,
         "require_membership": false,
         "require_membership_hidden": false,
         "require_membership_types": [],

doc/api/resources/orders.rst

@@ -132,6 +132,10 @@ last_modified                         datetime                   Last modificati
 
    The ``item`` and ``variation`` query parameters have been added.
 
+.. versionchanged:: 4.6
+
+   The ``subevent`` query parameters has been added.
+
 
 .. _order-position-resource:
 
@@ -433,6 +437,7 @@ List of all orders
        recommend using this in combination with ``testmode=false``, since test mode orders can vanish at any time and
        you will not notice it using this method.
    :query datetime created_since: Only return orders that have been created since the given date.
+   :query integer subevent: Only return orders with a position that contains this subevent ID. *Warning:* Result will also include orders if they contain mixed subevents, and it will even return orders where the subevent is only contained in a canceled position.
    :query datetime subevent_after: Only return orders that contain a ticket for a subevent taking place after the given date. This is an exclusive after, and it considers the **end** of the subevent (or its start, if the end is not set).
    :query datetime subevent_before: Only return orders that contain a ticket for a subevent taking place after the given date. This is an exclusive before, and it considers the **start** of the subevent.
    :query string exclude: Exclude a field from the output, e.g. ``fees`` or ``positions.downloads``. Can be used as a performance optimization. Can be passed multiple times.

doc/api/resources/taxrules.rst

@@ -16,15 +16,22 @@ Field                                 Type                       Description
 ===================================== ========================== =======================================================
 id                                    integer                    Internal ID of the tax rule
 name                                  multi-lingual string       The tax rules' name
+internal_name                         string                     An optional name that is only used in the backend
 rate                                  decimal (string)           Tax rate in percent
 price_includes_tax                    boolean                    If ``true`` (default), tax is assumed to be included in
                                                                  the specified product price
 eu_reverse_charge                     boolean                    If ``true``, EU reverse charge rules are applied
 home_country                          string                     Merchant country (required for reverse charge), can be
                                                                  ``null`` or empty string
+keep_gross_if_rate_changes            boolean                    If ``true``, changes of the tax rate based on custom
+                                                                 rules keep the gross price constant (default is ``false``)
 ===================================== ========================== =======================================================
 
 
+.. versionchanged:: 4.6
+
+    The ``internal_name`` and ``keep_gross_if_rate_changes`` attributes have been added.
+
 Endpoints
 ---------
 
@@ -56,9 +63,11 @@ Endpoints
           {
             "id": 1,
             "name": {"en": "VAT"},
+            "internal_name": "VAT",
             "rate": "19.00",
             "price_includes_tax": true,
             "eu_reverse_charge": false,
+            "keep_gross_if_rate_changes": false,
             "home_country": "DE"
           }
         ]
@@ -94,9 +103,11 @@ Endpoints
       {
         "id": 1,
         "name": {"en": "VAT"},
+        "internal_name": "VAT",
         "rate": "19.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
+        "keep_gross_if_rate_changes": false,
         "home_country": "DE"
       }
 
@@ -140,9 +151,11 @@ Endpoints
       {
         "id": 1,
         "name": {"en": "VAT"},
+        "internal_name": "VAT",
         "rate": "19.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
+        "keep_gross_if_rate_changes": false,
         "home_country": "DE"
       }
 
@@ -185,9 +198,11 @@ Endpoints
       {
         "id": 1,
         "name": {"en": "VAT"},
+        "internal_name": "VAT",
         "rate": "20.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
+        "keep_gross_if_rate_changes": false,
         "home_country": "DE"
       }
 

doc/development/algorithms/index.rst

@@ -2,7 +2,7 @@ Algorithms
 ==========
 
 The business logic inside pretix is full of complex algorithms making decisions based on all the hundreds of settings
-and input parameters available. Some of them are documented here as graphs, either because fully understanding them is very
+and input parameters available. Some of them are documented here as graphs, either because fully understanding them is very important
 when working on features close to them, or because they also need to be re-implemented by client-side components like our
 ticket scanning apps and we want to ensure the implementations are as similar as possible to avoid confusion.
 

doc/development/api/cookieconsent.rst

@@ -0,0 +1,119 @@
+.. highlight:: python
+   :linenothreshold: 5
+
+.. _`cookieconsent`:
+
+Handling cookie consent
+=======================
+
+pretix includes an optional feature to handle cookie consent explicitly to comply with EU regulations.
+If your plugin sets non-essential cookies or includes a third-party service that does so, you should
+integrate with this feature.
+
+Server-side integration
+-----------------------
+
+First, you need to declare that you are using non-essential cookies by responding to the following
+signal:
+
+.. automodule:: pretix.presale.signals
+   :members: register_cookie_providers
+
+You are expected to return a list of ``CookieProvider`` objects instantiated from the following class:
+
+.. class:: pretix.presale.cookies.CookieProvider
+
+   .. py:attribute:: CookieProvider.identifier
+
+      A short and unique identifier used to distinguish this cookie provider form others (required).
+
+   .. py:attribute:: CookieProvider.provider_name
+
+      A human-readable name of the entity of feature responsible for setting the cookie (required).
+
+   .. py:attribute:: CookieProvider.usage_classes
+
+      A list of enum values from the ``pretix.presale.cookies.UsageClass`` enumeration class, such as
+      ``UsageClass.ANALYTICS``, ``UsageClass.MARKETING``, or ``UsageClass.SOCIAL`` (required).
+
+   .. py:attribute:: CookieProvider.privacy_url
+
+      A link to a privacy policy (optional).
+
+Here is an example of such a receiver:
+
+.. code-block:: python
+
+   @receiver(register_cookie_providers)
+   def recv_cookie_providers(sender, request, **kwargs):
+       return [
+           CookieProvider(
+               identifier='google_analytics',
+               provider_name='Google Analytics',
+               usage_classes=[UsageClass.ANALYTICS],
+           )
+       ]
+
+JavaScript-side integration
+---------------------------
+
+The server-side integration only causes the cookie provider to show up in the cookie dialog. You still
+need to care about actually enforcing the consent state.
+
+You can access the consent state through the ``window.pretix.cookie_consent`` variable. Whenever the
+value changes, a ``pretix:cookie-consent:change`` event is fired on the ``document`` object.
+
+The variable will generally have one of the following states:
+
+.. rst-class:: rest-resource-table
+
+================================================================ =====================================================
+State                                                            Interpretation
+================================================================ =====================================================
+``pretix === undefined || pretix.cookie_consent === undefined``  Your JavaScript has loaded before the cookie consent
+                                                                 script. Wait for the event to be fired, then try again,
+                                                                 do not yet set a cookie.
+``pretix.cookie_consent === null``                               The cookie consent mechanism has not been enabled. This
+                                                                 usually means that you can set cookies however you like.
+``pretix.cookie_consent[identifier] === undefined``              The cookie consent mechanism is loaded, but has no data
+                                                                 on your cookie yet, wait for the event to be fired, do not
+                                                                 yet set a cookie.
+``pretix.cookie_consent[identifier] === true``                   The user has consented to your cookie.
+``pretix.cookie_consent[identifier] === false``                  The user has actively rejected your cookie.
+================================================================ =====================================================
+
+If you are integrating e.g. a tracking provider with native cookie consent support such
+as Facebook's Pixel, you can integrate it like this:
+
+.. code-block:: javascript
+
+     var consent = (window.pretix || {}).cookie_consent;
+     if (consent !== null && !(consent || {}).facebook) {
+         fbq('consent', 'revoke');
+     }
+     fbq('init', ...);
+     document.addEventListener('pretix:cookie-consent:change', function (e) {
+         fbq('consent', (e.detail || {}).facebook ? 'grant' : 'revoke');
+     })
+
+If you have a JavaScript function that you only want to load if consent for a specific ``identifier``
+is given, you can wrap it like this:
+
+.. code-block:: javascript
+
+     var consent_identifier = "youridentifier";
+     var consent = (window.pretix || {}).cookie_consent;
+     if (consent === null || (consent || {})[consent_identifier] === true) {
+         // Cookie consent tool is either disabled or consent is given
+         addScriptElement(src);
+         return;
+     }
+
+     // Either cookie consent tool has not loaded yet or consent is not given
+     document.addEventListener('pretix:cookie-consent:change', function onChange(e) {
+         var consent = e.detail || {};
+         if (consent === null || consent[consent_identifier] === true) {
+             addScriptElement(src);
+             document.removeEventListener('pretix:cookie-consent:change', onChange);
+         }
+     })

doc/development/api/index.rst

@@ -17,6 +17,7 @@ Contents:
    shredder
    import
    customview
+   cookieconsent
    auth
    general
    quality

doc/development/api/payment.rst

@@ -62,6 +62,8 @@ The provider class
 
    .. autoattribute:: public_name
 
+   .. autoattribute:: confirm_button_name
+
    .. autoattribute:: is_enabled
 
    .. autoattribute:: priority

doc/user/events/email.rst

@@ -203,4 +203,4 @@ Then, please contact support@pretix.eu and we will enable DKIM for your domain o
 
 
 .. _Sender Policy Framework: https://en.wikipedia.org/wiki/Sender_Policy_Framework
-.. _SPF specification: http://www.openspf.org/SPF_Record_Syntax
+.. _SPF specification: http://www.open-spf.org/SPF_Record_Syntax

doc/user/events/widget.rst

@@ -309,6 +309,10 @@ Currently, the following attributes are understood by pretix itself:
   always be modified. Note that this is not a security feature and can easily be overridden by users, so do not rely
   on this for authentication.
 
+* If ``data-consent="…"`` is given, the cookie consent mechanism will be initialized with consent for the given cookie
+  providers. All other providers will be disabled, no consent dialog will be shown. This is useful if you already
+  asked the user for consent and don't want them to be asked again. Example: ``data-consent="facebook,google_analytics"``
+
 Any configured pretix plugins might understand more data fields. For example, if the appropriate plugins on pretix
 Hosted or pretix Enterprise are active, you can pass the following fields:
 

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__ = "4.5.1"
+__version__ = "4.6.0.dev0"

src/pretix/api/serializers/event.py

@@ -637,7 +637,7 @@ class SubEventSerializer(I18nAwareModelSerializer):
 class TaxRuleSerializer(CountryFieldMixin, I18nAwareModelSerializer):
     class Meta:
         model = TaxRule
-        fields = ('id', 'name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country')
+        fields = ('id', 'name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country', 'internal_name', 'keep_gross_if_rate_changes')
 
 
 class EventSettingsSerializer(SettingsSerializer):

src/pretix/api/serializers/item.py

@@ -58,8 +58,9 @@ class InlineItemVariationSerializer(I18nAwareModelSerializer):
     class Meta:
         model = ItemVariation
         fields = ('id', 'value', 'active', 'description',
-                  'position', 'default_price', 'price', 'original_price',
-                  'require_membership', 'require_membership_types', 'require_membership_hidden', 'available_from', 'available_until',
+                  'position', 'default_price', 'price', 'original_price', 'require_approval',
+                  'require_membership', 'require_membership_types',
+                  'require_membership_hidden', 'available_from', 'available_until',
                   'sales_channels', 'hide_without_voucher',)
 
     def __init__(self, *args, **kwargs):
@@ -74,8 +75,9 @@ class ItemVariationSerializer(I18nAwareModelSerializer):
     class Meta:
         model = ItemVariation
         fields = ('id', 'value', 'active', 'description',
-                  'position', 'default_price', 'price', 'original_price',
-                  'require_membership', 'require_membership_types', 'require_membership_hidden', 'available_from', 'available_until',
+                  'position', 'default_price', 'price', 'original_price', 'require_approval',
+                  'require_membership', 'require_membership_types',
+                  'require_membership_hidden', 'available_from', 'available_until',
                   'sales_channels', 'hide_without_voucher',)
 
     def __init__(self, *args, **kwargs):

src/pretix/api/serializers/order.py

@@ -1426,7 +1426,7 @@ class InlineInvoiceLineSerializer(I18nAwareModelSerializer):
 
     class Meta:
         model = InvoiceLine
-        fields = ('position', 'description', 'item', 'variation', 'attendee_name', 'event_date_from',
+        fields = ('position', 'description', 'item', 'variation', 'subevent', 'attendee_name', 'event_date_from',
                   'event_date_to', 'gross_value', 'tax_value', 'tax_rate', 'tax_name', 'fee_type',
                   'fee_internal_type', 'event_location')
 

src/pretix/api/serializers/organizer.py

@@ -296,7 +296,14 @@ class OrganizerSettingsSerializer(SettingsSerializer):
         'theme_round_borders',
         'primary_font',
         'organizer_logo_image_inherit',
-        'organizer_logo_image'
+        'organizer_logo_image',
+        'privacy_url',
+        'cookie_consent',
+        'cookie_consent_dialog_title',
+        'cookie_consent_dialog_text',
+        'cookie_consent_dialog_text_secondary',
+        'cookie_consent_dialog_button_yes',
+        'cookie_consent_dialog_button_no',
     ]
 
     def __init__(self, *args, **kwargs):

src/pretix/api/views/order.py

@@ -94,6 +94,7 @@ with scopes_disabled():
         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')
 
         class Meta:
             model = Order

src/pretix/base/auth.py

@@ -146,7 +146,8 @@ class NativeAuthBackend(BaseAuthBackend):
         d = OrderedDict([
             ('email', forms.EmailField(label=_("E-mail"), max_length=254,
                                        widget=forms.EmailInput(attrs={'autofocus': 'autofocus'}))),
-            ('password', forms.CharField(label=_("Password"), widget=forms.PasswordInput)),
+            ('password', forms.CharField(label=_("Password"), widget=forms.PasswordInput,
+                                         max_length=4096)),
         ])
         return d
 

src/pretix/base/email.py

@@ -25,6 +25,7 @@ from datetime import timedelta
 from decimal import Decimal
 from itertools import groupby
 from smtplib import SMTPResponseException
+from typing import TypeVar
 
 import css_inline
 from django.conf import settings
@@ -49,23 +50,23 @@ from pretix.base.templatetags.rich_text import markdown_compile_email
 
 logger = logging.getLogger('pretix.base.email')
 
+T = TypeVar("T", bound=EmailBackend)
 
-class CustomSMTPBackend(EmailBackend):
 
-    def test(self, from_addr):
-        try:
-            self.open()
-            self.connection.ehlo_or_helo_if_needed()
-            (code, resp) = self.connection.mail(from_addr, [])
-            if code != 250:
-                logger.warn('Error testing mail settings, code %d, resp: %s' % (code, resp))
-                raise SMTPResponseException(code, resp)
-            (code, resp) = self.connection.rcpt('testdummy@pretix.eu')
-            if (code != 250) and (code != 251):
-                logger.warn('Error testing mail settings, code %d, resp: %s' % (code, resp))
-                raise SMTPResponseException(code, resp)
-        finally:
-            self.close()
+def test_custom_smtp_backend(backend: T, from_addr: str) -> None:
+    try:
+        backend.open()
+        backend.connection.ehlo_or_helo_if_needed()
+        (code, resp) = backend.connection.mail(from_addr, [])
+        if code != 250:
+            logger.warning('Error testing mail settings, code %d, resp: %s' % (code, resp))
+            raise SMTPResponseException(code, resp)
+        (code, resp) = backend.connection.rcpt('testdummy@pretix.eu')
+        if (code != 250) and (code != 251):
+            logger.warning('Error testing mail settings, code %d, resp: %s' % (code, resp))
+            raise SMTPResponseException(code, resp)
+    finally:
+        backend.close()
 
 
 class BaseHTMLMailRenderer:

src/pretix/base/forms/__init__.py

@@ -118,6 +118,27 @@ class SettingsForm(i18nfield.forms.I18nFormMixin, HierarkeyForm):
                 self.cleaned_data[k] = self.initial[k]
         return super().save()
 
+    def clean(self):
+        d = super().clean()
+
+        # There is logic in HierarkeyForm.save() to only persist fields that changed. HierarkeyForm determines if
+        # something changed by comparing `self._s.get(name)` to `value`. This leaves an edge case open for multi-lingual
+        # text fields. On the very first load, the initial value in `self._s.get(name)` will be a LazyGettextProxy-based
+        # string. However, only some of the languages are usually visible, so even if the user does not change anything
+        # at all, it will be considered a changed value and stored. We do not want that, as it makes it very hard to add
+        # languages to an organizer/event later on. So we trick it and make sure nothing gets changed in that situation.
+        for name, field in self.fields.items():
+            if isinstance(field, i18nfield.forms.I18nFormField):
+                value = d.get(name)
+                if not value:
+                    continue
+
+                current = self._s.get(name, as_type=type(value))
+                if name not in self.changed_data:
+                    d[name] = current
+
+        return d
+
     def get_new_filename(self, name: str) -> str:
         from pretix.base.models import Event
 

src/pretix/base/forms/auth.py

@@ -154,6 +154,7 @@ class RegistrationForm(forms.Form):
         widget=forms.PasswordInput(attrs={
             'autocomplete': 'new-password'  # see https://bugs.chromium.org/p/chromium/issues/detail?id=370363#c7
         }),
+        max_length=4096,
         required=True
     )
     password_repeat = forms.CharField(
@@ -161,6 +162,7 @@ class RegistrationForm(forms.Form):
         widget=forms.PasswordInput(attrs={
             'autocomplete': 'new-password'  # see https://bugs.chromium.org/p/chromium/issues/detail?id=370363#c7
         }),
+        max_length=4096,
         required=True
     )
     keep_logged_in = forms.BooleanField(label=_("Keep me logged in"), required=False)
@@ -204,11 +206,13 @@ class PasswordRecoverForm(forms.Form):
     password = forms.CharField(
         label=_('Password'),
         widget=forms.PasswordInput,
+        max_length=4096,
         required=True
     )
     password_repeat = forms.CharField(
         label=_('Repeat password'),
-        widget=forms.PasswordInput
+        widget=forms.PasswordInput,
+        max_length=4096,
     )
 
     def __init__(self, user_id=None, *args, **kwargs):

src/pretix/base/forms/questions.py

@@ -333,23 +333,41 @@ class WrappedPhoneNumberPrefixWidget(PhoneNumberPrefixWidget):
 def guess_country(event):
     # Try to guess the initial country from either the country of the merchant
     # or the locale. This will hopefully save at least some users some scrolling :)
-    locale = get_language_without_region()
     country = event.settings.region or event.settings.invoice_address_from_country
     if not country:
-        valid_countries = countries.countries
-        if '-' in locale:
-            parts = locale.split('-')
-            # TODO: does this actually work?
-            if parts[1].upper() in valid_countries:
-                country = Country(parts[1].upper())
-            elif parts[0].upper() in valid_countries:
-                country = Country(parts[0].upper())
-        else:
-            if locale.upper() in valid_countries:
-                country = Country(locale.upper())
+        country = get_country_by_locale(get_language_without_region())
     return country
 
 
+def get_country_by_locale(locale):
+    country = None
+    valid_countries = countries.countries
+    if '-' in locale:
+        parts = locale.split('-')
+        # TODO: does this actually work?
+        if parts[1].upper() in valid_countries:
+            country = Country(parts[1].upper())
+        elif parts[0].upper() in valid_countries:
+            country = Country(parts[0].upper())
+    else:
+        if locale.upper() in valid_countries:
+            country = Country(locale.upper())
+    return country
+
+
+def guess_phone_prefix(event):
+    with language(get_babel_locale()):
+        country = str(guess_country(event))
+        return get_phone_prefix(country)
+
+
+def get_phone_prefix(country):
+    for prefix, values in _COUNTRY_CODE_TO_REGION_CODE.items():
+        if country in values:
+            return prefix
+    return None
+
+
 class QuestionCheckboxSelectMultiple(forms.CheckboxSelectMultiple):
     option_template_name = 'pretixbase/forms/widgets/checkbox_option_with_links.html'
 
@@ -780,25 +798,26 @@ class BaseQuestionsForm(forms.Form):
                 if q.valid_datetime_max:
                     field.validators.append(MaxDateTimeValidator(q.valid_datetime_max))
             elif q.type == Question.TYPE_PHONENUMBER:
-                with language(get_babel_locale()):
-                    default_country = guess_country(event)
-                    default_prefix = None
-                    for prefix, values in _COUNTRY_CODE_TO_REGION_CODE.items():
-                        if str(default_country) in values:
-                            default_prefix = prefix
+                if initial:
                     try:
-                        initial = PhoneNumber().from_string(initial.answer) if initial else "+{}.".format(default_prefix)
+                        initial = PhoneNumber().from_string(initial.answer)
                     except NumberParseException:
                         initial = None
-                    field = PhoneNumberField(
-                        label=label, required=required,
-                        help_text=help_text,
-                        # We now exploit an implementation detail in PhoneNumberPrefixWidget to allow us to pass just
-                        # a country code but no number as an initial value. It's a bit hacky, but should be stable for
-                        # the future.
-                        initial=initial,
-                        widget=WrappedPhoneNumberPrefixWidget()
-                    )
+
+                if not initial:
+                    phone_prefix = guess_phone_prefix(event)
+                    if phone_prefix:
+                        initial = "+{}.".format(phone_prefix)
+
+                field = PhoneNumberField(
+                    label=label, required=required,
+                    help_text=help_text,
+                    # We now exploit an implementation detail in PhoneNumberPrefixWidget to allow us to pass just
+                    # a country code but no number as an initial value. It's a bit hacky, but should be stable for
+                    # the future.
+                    initial=initial,
+                    widget=WrappedPhoneNumberPrefixWidget()
+                )
             field.question = q
             if answers:
                 # Cache the answer object for later use
@@ -869,6 +888,12 @@ class BaseQuestionsForm(forms.Form):
                 if question_is_required(q) and not answer and answer != 0 and not field.errors:
                     raise ValidationError({'question_%d' % q.pk: [_('This field is required.')]})
 
+        # Strip invisible question from cleaned_data so they don't end up in the database
+        for q in question_cache.values():
+            answer = d.get('question_%d' % q.pk)
+            if q.dependency_question_id and not question_is_visible(q.dependency_question_id, q.dependency_values) and answer is not None:
+                d['question_%d' % q.pk] = None
+
         return d
 
 
@@ -1044,7 +1069,11 @@ class BaseInvoiceAddressForm(forms.ModelForm):
                 self.instance.vat_id_validated = True
                 self.instance.vat_id = normalized_id
             except VATIDFinalError as e:
-                raise ValidationError(e.message)
+                if self.all_optional:
+                    self.instance.vat_id_validated = False
+                    messages.warning(self.request, e.message)
+                else:
+                    raise ValidationError(e.message)
             except VATIDTemporaryError as e:
                 self.instance.vat_id_validated = False
                 if self.request and self.vat_warning:

src/pretix/base/forms/widgets.py

@@ -86,14 +86,6 @@ class TimePickerWidget(forms.TimeInput):
 
 class UploadedFileWidget(forms.ClearableFileInput):
     def __init__(self, *args, **kwargs):
-        # Browsers can't recognize that the server already has a file uploaded
-        # Don't mark this input as being required if we already have an answer
-        # (this needs to be done via the attrs, otherwise we wouldn't get the "required" star on the field label)
-        attrs = kwargs.get('attrs', {})
-        if kwargs.get('required') and kwargs.get('initial'):
-            attrs.update({'required': None})
-        kwargs.update({'attrs': attrs})
-
         self.position = kwargs.pop('position')
         self.event = kwargs.pop('event')
         self.answer = kwargs.pop('answer')
@@ -125,6 +117,15 @@ class UploadedFileWidget(forms.ClearableFileInput):
                     'answer': self.answer.pk,
                 })
 
+    def get_context(self, name, value, attrs):
+        # Browsers can't recognize that the server already has a file uploaded
+        # Don't mark this input as being required if we already have an answer
+        # (this needs to be done via the attrs, otherwise we wouldn't get the "required" star on the field label)
+        ctx = super().get_context(name, value, attrs)
+        if ctx['widget']['is_initial']:
+            ctx['widget']['attrs']['required'] = False
+        return ctx
+
     def format_value(self, value):
         if self.is_initial(value):
             return self.FakeFile(value, self.position, self.event, self.answer)

src/pretix/base/management/commands/check_order_transactions.py

@@ -23,7 +23,9 @@ from decimal import Decimal
 
 from django.core.management.base import BaseCommand
 from django.db import models
-from django.db.models import Case, F, OuterRef, Q, Subquery, Sum, Value, When
+from django.db.models import (
+    Case, Count, F, OuterRef, Q, Subquery, Sum, Value, When,
+)
 from django.db.models.functions import Coalesce
 from django_scopes import scopes_disabled
 
@@ -45,6 +47,18 @@ class Command(BaseCommand):
                     output_field=models.DecimalField(decimal_places=2, max_digits=10)
                 ), Value(0), output_field=models.DecimalField(decimal_places=2, max_digits=10)
             ),
+            position_cnt=Case(
+                When(Q(status__in=('e', 'c')) | Q(require_approval=True), then=Value(0)),
+                default=Coalesce(
+                    Subquery(
+                        OrderPosition.objects.filter(
+                            order=OuterRef('pk')
+                        ).order_by().values('order').annotate(p=Count('*')).values('p'),
+                        output_field=models.IntegerField()
+                    ), Value(0), output_field=models.IntegerField()
+                ),
+                output_field=models.IntegerField()
+            ),
             fee_total=Coalesce(
                 Subquery(
                     OrderFee.objects.filter(
@@ -61,6 +75,15 @@ class Command(BaseCommand):
                     output_field=models.DecimalField(decimal_places=2, max_digits=10)
                 ), Value(0), output_field=models.DecimalField(decimal_places=2, max_digits=10)
             ),
+            tx_cnt=Coalesce(
+                Subquery(
+                    Transaction.objects.filter(
+                        order=OuterRef('pk'),
+                        item__isnull=False,
+                    ).order_by().values('order').annotate(p=Sum(F('count'))).values('p'),
+                    output_field=models.DecimalField(decimal_places=2, max_digits=10)
+                ), Value(0), output_field=models.DecimalField(decimal_places=2, max_digits=10)
+            ),
         ).annotate(
             correct_total=Case(
                 When(Q(status=Order.STATUS_CANCELED) | Q(status=Order.STATUS_EXPIRED) | Q(require_approval=True),
@@ -70,13 +93,15 @@ class Command(BaseCommand):
             ),
         ).exclude(
             total=F('position_total') + F('fee_total'),
-            tx_total=F('correct_total')
+            tx_total=F('correct_total'),
+            tx_cnt=F('position_cnt')
         ).select_related('event')
         for o in qs:
-            if abs(o.tx_total - o.correct_total) < Decimal('0.00001') and abs(o.position_total + o.fee_total - o.total) < Decimal('0.00001'):
+            if abs(o.tx_total - o.correct_total) < Decimal('0.00001') and abs(o.position_total + o.fee_total - o.total) < Decimal('0.00001') \
+                    and o.tx_cnt == o.position_cnt:
                 # Ignore SQLite which treats Decimals like floats…
                 continue
             print(f"Error in order {o.full_code}: status={o.status}, sum(positions)+sum(fees)={o.position_total + o.fee_total}, "
-                  f"order.total={o.total}, sum(transactions)={o.tx_total}, expected={o.correct_total}")
+                  f"order.total={o.total}, sum(transactions)={o.tx_total}, expected={o.correct_total}, pos_cnt={o.position_cnt}, tx_pos_cnt={o.tx_cnt}")
 
         self.stderr.write(self.style.SUCCESS(f'Check completed.'))

src/pretix/base/migrations/0205_itemvariation_require_approval.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.9 on 2021-12-13 14:21
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0204_orderposition_backfill_is_bundled'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='itemvariation',
+            name='require_approval',
+            field=models.BooleanField(default=False),
+        ),
+    ]

src/pretix/base/migrations/0206_customer_phone.py

@@ -0,0 +1,19 @@
+# Generated by Django 3.2.9 on 2022-01-12 10:59
+
+import phonenumber_field.modelfields
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0205_itemvariation_require_approval'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='customer',
+            name='phone',
+            field=phonenumber_field.modelfields.PhoneNumberField(max_length=128, null=True, region=None),
+        ),
+    ]

src/pretix/base/migrations/0207_auto_20220119_1427.py

@@ -0,0 +1,23 @@
+# Generated by Django 3.2.4 on 2022-01-19 14:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('pretixbase', '0206_customer_phone'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='taxrule',
+            name='internal_name',
+            field=models.CharField(max_length=190, null=True),
+        ),
+        migrations.AddField(
+            model_name='taxrule',
+            name='keep_gross_if_rate_changes',
+            field=models.BooleanField(default=False),
+        ),
+    ]

src/pretix/base/models/customers.py

@@ -29,6 +29,7 @@ from django.db.models import F, Q
 from django.utils.crypto import get_random_string, salted_hmac
 from django.utils.translation import gettext_lazy as _, pgettext_lazy
 from django_scopes import ScopedManager, scopes_disabled
+from phonenumber_field.modelfields import PhoneNumberField
 
 from pretix.base.banlist import banned
 from pretix.base.models.base import LoggedModel
@@ -45,6 +46,7 @@ class Customer(LoggedModel):
     organizer = models.ForeignKey(Organizer, related_name='customers', on_delete=models.CASCADE)
     identifier = models.CharField(max_length=190, db_index=True, unique=True)
     email = models.EmailField(db_index=True, null=True, blank=False, verbose_name=_('E-mail'), max_length=190)
+    phone = PhoneNumberField(null=True, blank=True, verbose_name=_('Phone number'))
     password = models.CharField(verbose_name=_('Password'), max_length=128)
     name_cached = models.CharField(max_length=255, verbose_name=_('Full name'), blank=True)
     name_parts = models.JSONField(default=dict)
@@ -87,6 +89,7 @@ class Customer(LoggedModel):
         self.name_parts = {}
         self.name_cached = ''
         self.email = None
+        self.phone = None
         self.save()
         self.all_logentries().update(data={}, shredded=True)
         self.orders.all().update(customer=None)

src/pretix/base/models/event.py

@@ -670,16 +670,17 @@ class Event(EventMixin, LoggedModel):
         Returns an email server connection, either by using the system-wide connection
         or by returning a custom one based on the event's settings.
         """
-        from pretix.base.email import CustomSMTPBackend
 
         if self.settings.smtp_use_custom or force_custom:
-            return CustomSMTPBackend(host=self.settings.smtp_host,
-                                     port=self.settings.smtp_port,
-                                     username=self.settings.smtp_username,
-                                     password=self.settings.smtp_password,
-                                     use_tls=self.settings.smtp_use_tls,
-                                     use_ssl=self.settings.smtp_use_ssl,
-                                     fail_silently=False, timeout=timeout)
+            return get_connection(backend=settings.EMAIL_CUSTOM_SMTP_BACKEND,
+                                  host=self.settings.smtp_host,
+                                  port=self.settings.smtp_port,
+                                  username=self.settings.smtp_username,
+                                  password=self.settings.smtp_password,
+                                  use_tls=self.settings.smtp_use_tls,
+                                  use_ssl=self.settings.smtp_use_ssl,
+                                  fail_silently=False,
+                                  timeout=timeout)
         else:
             return get_connection(fail_silently=False)
 

src/pretix/base/models/items.py

@@ -764,6 +764,9 @@ class ItemVariation(models.Model):
     :type default_price: decimal.Decimal
     :param original_price: The item's "original" price. Will not be used for any calculations, will just be shown.
     :type original_price: decimal.Decimal
+    :param require_approval: If set to ``True``, orders containing this variation can only be processed and paid after
+    approval by an administrator
+    :type require_approval: bool
     """
     item = models.ForeignKey(
         Item,
@@ -799,6 +802,13 @@ class ItemVariation(models.Model):
         help_text=_('If set, this will be displayed next to the current price to show that the current price is a '
                     'discounted one. This is just a cosmetic setting and will not actually impact pricing.')
     )
+    require_approval = models.BooleanField(
+        verbose_name=_('Require approval'),
+        default=False,
+        help_text=_('If this variation is part of an order, the order will be put into an "approval" state and '
+                    'will need to be confirmed by you before it can be paid and completed. You can use this e.g. for '
+                    'discounted tickets that are only available to specific groups.'),
+    )
     require_membership = models.BooleanField(
         verbose_name=_('Require a valid membership'),
         default=False,
@@ -832,7 +842,7 @@ class ItemVariation(models.Model):
         blank=True,
     )
     hide_without_voucher = models.BooleanField(
-        verbose_name=_('This variation will only be shown if a voucher matching the product is redeemed.'),
+        verbose_name=_('Show only if a matching voucher is redeemed.'),
         default=False,
         help_text=_('This variation will be hidden from the event page until the user enters a voucher '
                     'that unlocks this variation.')

src/pretix/base/models/orders.py

@@ -950,7 +950,7 @@ class Order(LockModel, LoggedModel):
                   context: Dict[str, Any]=None, log_entry_type: str='pretix.event.order.email.sent',
                   user: User=None, headers: dict=None, sender: str=None, invoices: list=None,
                   auth=None, attach_tickets=False, position: 'OrderPosition'=None, auto_email=True,
-                  attach_ical=False):
+                  attach_ical=False, attach_other_files: list=None):
         """
         Sends an email to the user that placed this order. Basically, this method does two things:
 
@@ -994,7 +994,8 @@ class Order(LockModel, LoggedModel):
                     recipient, subject, template, context,
                     self.event, self.locale, self, headers=headers, sender=sender,
                     invoices=invoices, attach_tickets=attach_tickets,
-                    position=position, auto_email=auto_email, attach_ical=attach_ical
+                    position=position, auto_email=auto_email, attach_ical=attach_ical,
+                    attach_other_files=attach_other_files,
                 )
             except SendMailException:
                 raise
@@ -1441,6 +1442,15 @@ class AbstractPosition(models.Model):
         lines = [r.strip() for r in lines if r]
         return '\n'.join(lines).strip()
 
+    def requires_approval(self, invoice_address=None):
+        if self.item.require_approval:
+            return True
+        if self.variation and self.variation.require_approval:
+            return True
+        if self.item.tax_rule and self.item.tax_rule._require_approval(invoice_address):
+            return True
+        return False
+
 
 class OrderPayment(models.Model):
     """
@@ -2316,7 +2326,7 @@ class OrderPosition(AbstractPosition):
     def send_mail(self, subject: str, template: Union[str, LazyI18nString],
                   context: Dict[str, Any]=None, log_entry_type: str='pretix.event.order.email.sent',
                   user: User=None, headers: dict=None, sender: str=None, invoices: list=None,
-                  auth=None, attach_tickets=False, attach_ical=False):
+                  auth=None, attach_tickets=False, attach_ical=False, attach_other_files: list=None):
         """
         Sends an email to the attendee. Basically, this method does two things:
 
@@ -2357,6 +2367,7 @@ class OrderPosition(AbstractPosition):
                     invoices=invoices,
                     attach_tickets=attach_tickets,
                     attach_ical=attach_ical,
+                    attach_other_files=attach_other_files,
                 )
             except SendMailException:
                 raise

src/pretix/base/models/organizer.py

@@ -36,6 +36,7 @@ import string
 from datetime import date, datetime, time
 
 import pytz
+from django.conf import settings
 from django.core.mail import get_connection
 from django.core.validators import MinLengthValidator, RegexValidator
 from django.db import models
@@ -97,10 +98,21 @@ class Organizer(LoggedModel):
         return self.name
 
     def save(self, *args, **kwargs):
+        is_new = not self.pk
         obj = super().save(*args, **kwargs)
-        self.get_cache().clear()
+        if is_new:
+            self.set_defaults()
+        else:
+            self.get_cache().clear()
         return obj
 
+    def set_defaults(self):
+        """
+        This will be called after organizer creation.
+        This way, we can use this to introduce new default settings to pretix that do not affect existing organizers.
+        """
+        self.settings.cookie_consent = True
+
     def get_cache(self):
         """
         Returns an :py:class:`ObjectRelatedCache` object. This behaves equivalent to
@@ -184,16 +196,15 @@ class Organizer(LoggedModel):
         Returns an email server connection, either by using the system-wide connection
         or by returning a custom one based on the organizer's settings.
         """
-        from pretix.base.email import CustomSMTPBackend
-
         if self.settings.smtp_use_custom or force_custom:
-            return CustomSMTPBackend(host=self.settings.smtp_host,
-                                     port=self.settings.smtp_port,
-                                     username=self.settings.smtp_username,
-                                     password=self.settings.smtp_password,
-                                     use_tls=self.settings.smtp_use_tls,
-                                     use_ssl=self.settings.smtp_use_ssl,
-                                     fail_silently=False, timeout=timeout)
+            return get_connection(backend=settings.EMAIL_CUSTOM_SMTP_BACKEND,
+                                  host=self.settings.smtp_host,
+                                  port=self.settings.smtp_port,
+                                  username=self.settings.smtp_username,
+                                  password=self.settings.smtp_password,
+                                  use_tls=self.settings.smtp_use_tls,
+                                  use_ssl=self.settings.smtp_use_ssl,
+                                  fail_silently=False, timeout=timeout)
         else:
             return get_connection(fail_silently=False)
 

src/pretix/base/models/tax.py

@@ -81,6 +81,15 @@ class TaxedPrice:
             name=self.name,
         )
 
+    def __eq__(self, other):
+        return (
+            self.gross == other.gross and
+            self.net == other.net and
+            self.tax == other.tax and
+            self.rate == other.rate and
+            self.name == other.name
+        )
+
 
 TAXED_ZERO = TaxedPrice(
     gross=Decimal('0.00'),
@@ -127,8 +136,13 @@ def cc_to_vat_prefix(country_code):
 
 class TaxRule(LoggedModel):
     event = models.ForeignKey('Event', related_name='tax_rules', on_delete=models.CASCADE)
+    internal_name = models.CharField(
+        verbose_name=_('Internal name'),
+        max_length=190,
+        null=True, blank=True,
+    )
     name = I18nCharField(
-        verbose_name=_('Name'),
+        verbose_name=_('Official name'),
         help_text=_('Should be short, e.g. "VAT"'),
         max_length=190,
     )
@@ -141,6 +155,10 @@ class TaxRule(LoggedModel):
         verbose_name=_("The configured product prices include the tax amount"),
         default=True,
     )
+    keep_gross_if_rate_changes = models.BooleanField(
+        verbose_name=_("Keep gross amount constant if the tax rate changes based on the invoice address"),
+        default=False,
+    )
     eu_reverse_charge = models.BooleanField(
         verbose_name=_("Use EU reverse charge taxation rules"),
         default=False,
@@ -198,6 +216,8 @@ class TaxRule(LoggedModel):
             s = _('plus {rate}% {name}').format(rate=self.rate, name=self.name)
         if self.eu_reverse_charge:
             s += ' ({})'.format(_('reverse charge enabled'))
+        if self.internal_name:
+            return f'{self.internal_name} ({s})'
         return str(s)
 
     @property
@@ -211,7 +231,7 @@ class TaxRule(LoggedModel):
             rule = self.get_matching_rule(invoice_address)
             if rule.get('action', 'vat') == 'block':
                 raise self.SaleNotAllowed()
-            if rule.get('action', 'vat') == 'vat' and rule.get('rate') is not None:
+            if rule.get('action', 'vat') in ('vat', 'require_approval') and rule.get('rate') is not None:
                 return Decimal(rule.get('rate'))
         return Decimal(self.rate)
 
@@ -228,13 +248,19 @@ class TaxRule(LoggedModel):
             rate = override_tax_rate
         elif invoice_address:
             adjust_rate = self.tax_rate_for(invoice_address)
-            if (adjust_rate == gross_price_is_tax_rate or force_fixed_gross_price) and base_price_is == 'gross':
+            if (adjust_rate == gross_price_is_tax_rate or force_fixed_gross_price or self.keep_gross_if_rate_changes) and base_price_is == 'gross':
                 rate = adjust_rate
             elif adjust_rate != rate:
-                normal_price = self.tax(base_price, base_price_is, currency, subtract_from_gross=subtract_from_gross)
-                base_price = normal_price.net
-                base_price_is = 'net'
-                subtract_from_gross = Decimal('0.00')
+                if self.keep_gross_if_rate_changes:
+                    normal_price = self.tax(base_price, base_price_is, currency, subtract_from_gross=subtract_from_gross)
+                    base_price = normal_price.gross
+                    base_price_is = 'gross'
+                    subtract_from_gross = Decimal('0.00')
+                else:
+                    normal_price = self.tax(base_price, base_price_is, currency, subtract_from_gross=subtract_from_gross)
+                    base_price = normal_price.net
+                    base_price_is = 'net'
+                    subtract_from_gross = Decimal('0.00')
                 rate = adjust_rate
 
         if rate == Decimal('0.00'):
@@ -337,12 +363,19 @@ class TaxRule(LoggedModel):
 
         return False
 
+    def _require_approval(self, invoice_address):
+        if self._custom_rules:
+            rule = self.get_matching_rule(invoice_address)
+            if rule.get('action', 'vat') == 'require_approval':
+                return True
+        return False
+
     def _tax_applicable(self, invoice_address):
         if self._custom_rules:
             rule = self.get_matching_rule(invoice_address)
             if rule.get('action', 'vat') == 'block':
                 raise self.SaleNotAllowed()
-            return rule.get('action', 'vat') == 'vat'
+            return rule.get('action', 'vat') in ('vat', 'require_approval')
 
         if not self.eu_reverse_charge:
             # No reverse charge rules? Always apply VAT!

src/pretix/base/payment.py

@@ -191,6 +191,15 @@ class BasePaymentProvider:
         """
         return self.verbose_name
 
+    @property
+    def confirm_button_name(self) -> str:
+        """
+        A label for the "confirm" button on the last page before a payment is started. This
+        is **not** used in the regular checkout flow, but only if the payment method is selected
+        for an existing order later on.
+        """
+        return _("Pay now")
+
     @property
     def identifier(self) -> str:
         """

src/pretix/base/reldate.py

@@ -273,6 +273,11 @@ class RelativeDateTimeField(forms.MultiValueField):
                 minutes_before=None
             ))
 
+    def has_changed(self, initial, data):
+        if initial is None:
+            initial = self.widget.decompress(initial)
+        return super().has_changed(initial, data)
+
     def clean(self, value):
         if value[0] == 'absolute' and not value[1]:
             raise ValidationError(self.error_messages['incomplete'])

src/pretix/base/services/cart.py

@@ -426,10 +426,10 @@ class CartManager:
                 if not cp.includes_tax:
                     price = self._get_price(cp.item, cp.variation, cp.voucher, cp.price, cp.subevent,
                                             cp_is_net=True, bundled_sum=bundled_sum)
-                    price = TaxedPrice(net=price.net, gross=price.net, rate=0, tax=0, name='')
+                    price = TaxedPrice(net=price.net, gross=price.net, rate=Decimal('0'), tax=Decimal('0'), name='')
                     pbv = self._get_price(cp.item, cp.variation, None, cp.price, cp.subevent,
                                           cp_is_net=True, bundled_sum=bundled_sum)
-                    pbv = TaxedPrice(net=pbv.net, gross=pbv.net, rate=0, tax=0, name='')
+                    pbv = TaxedPrice(net=pbv.net, gross=pbv.net, rate=Decimal('0'), tax=Decimal('0'), name='')
                 else:
                     price = self._get_price(cp.item, cp.variation, cp.voucher, cp.price, cp.subevent,
                                             bundled_sum=bundled_sum)
@@ -1106,10 +1106,11 @@ def update_tax_rates(event: Event, cart_id: str, invoice_address: InvoiceAddress
         rate = pos.item.tax_rule.tax_rate_for(invoice_address)
 
         if pos.tax_rate != rate:
-            current_net = pos.price - pos.tax_value
-            new_gross = pos.item.tax(current_net, base_price_is='net', invoice_address=invoice_address).gross
-            totaldiff += new_gross - pos.price
-            pos.price = new_gross
+            if not pos.item.tax_rule.keep_gross_if_rate_changes:
+                current_net = pos.price - pos.tax_value
+                new_gross = pos.item.tax(current_net, base_price_is='net', invoice_address=invoice_address).gross
+                totaldiff += new_gross - pos.price
+                pos.price = new_gross
             pos.includes_tax = rate != Decimal('0.00')
             pos.override_tax_rate = rate
             pos.save(update_fields=['price', 'includes_tax', 'override_tax_rate'])

src/pretix/base/services/invoices.py

@@ -102,7 +102,7 @@ def build_invoice(invoice: Invoice) -> Invoice:
             payment = ""
         if invoice.event.settings.invoice_include_expire_date and invoice.order.status == Order.STATUS_PENDING:
             if payment:
-                payment += "<br />"
+                payment += "<br /><br />"
             payment += pgettext("invoice", "Please complete your payment before {expire_date}.").format(
                 expire_date=date_format(invoice.order.expires, "SHORT_DATE_FORMAT")
             )

src/pretix/base/services/mail.py

@@ -35,6 +35,7 @@
 import hashlib
 import inspect
 import logging
+import mimetypes
 import os
 import re
 import smtplib
@@ -51,6 +52,7 @@ from bs4 import BeautifulSoup
 from celery import chain
 from celery.exceptions import MaxRetriesExceededError
 from django.conf import settings
+from django.core.files.storage import default_storage
 from django.core.mail import (
     EmailMultiAlternatives, SafeMIMEMultipart, get_connection,
 )
@@ -73,6 +75,7 @@ from pretix.base.services.tasks import TransactionAwareTask
 from pretix.base.services.tickets import get_tickets_for_order
 from pretix.base.signals import email_filter, global_email_filter
 from pretix.celery_app import app
+from pretix.helpers.hierarkey import clean_filename
 from pretix.multidomain.urlreverse import build_absolute_uri
 from pretix.presale.ical import get_ical
 
@@ -94,7 +97,7 @@ def mail(email: Union[str, Sequence[str]], subject: str, template: Union[str, La
          context: Dict[str, Any] = None, event: Event = None, locale: str = None, order: Order = None,
          position: OrderPosition = None, *, headers: dict = None, sender: str = None, organizer: Organizer = None,
          customer: Customer = None, invoices: Sequence = None, attach_tickets=False, auto_email=True, user=None,
-         attach_ical=False, attach_cached_files: Sequence = None):
+         attach_ical=False, attach_cached_files: Sequence = None, attach_other_files: list=None):
     """
     Sends out an email to a user. The mail will be sent synchronously or asynchronously depending on the installation.
 
@@ -142,6 +145,8 @@ def mail(email: Union[str, Sequence[str]], subject: str, template: Union[str, La
 
     :param attach_cached_files: A list of cached file to attach to this email.
 
+    :param attach_other_files: A list of file paths on our storage to attach.
+
     :raises MailOrderException: on obvious, immediate failures. Not raising an exception does not necessarily mean
         that the email has been sent, just that it has been queued by the email backend.
     """
@@ -301,6 +306,7 @@ def mail(email: Union[str, Sequence[str]], subject: str, template: Union[str, La
             organizer=organizer.pk if organizer else None,
             customer=customer.pk if customer else None,
             attach_cached_files=[(cf.id if isinstance(cf, CachedFile) else cf) for cf in attach_cached_files] if attach_cached_files else [],
+            attach_other_files=attach_other_files,
         )
 
         if invoices:
@@ -338,7 +344,8 @@ class CustomEmail(EmailMultiAlternatives):
 def mail_send_task(self, *args, to: List[str], subject: str, body: str, html: str, sender: str,
                    event: int = None, position: int = None, headers: dict = None, bcc: List[str] = None,
                    invoices: List[int] = None, order: int = None, attach_tickets=False, user=None,
-                   organizer=None, customer=None, attach_ical=False, attach_cached_files: List[int] = None) -> bool:
+                   organizer=None, customer=None, attach_ical=False, attach_cached_files: List[int] = None,
+                   attach_other_files: List[str] = None) -> bool:
     email = CustomEmail(subject, body, sender, to=to, bcc=bcc, headers=headers)
     if html is not None:
         html_message = SafeMIMEMultipart(_subtype='related', encoding=settings.DEFAULT_CHARSET)
@@ -455,6 +462,20 @@ def mail_send_task(self, *args, to: List[str], subject: str, body: str, html: st
                         logger.exception('Could not attach invoice to email')
                         pass
 
+        if attach_other_files:
+            for fname in attach_other_files:
+                ftype, _ = mimetypes.guess_type(fname)
+                data = default_storage.open(fname).read()
+                try:
+                    email.attach(
+                        clean_filename(os.path.basename(fname)),
+                        data,
+                        ftype
+                    )
+                except:
+                    logger.exception('Could not attach file to email')
+                    pass
+
         if attach_cached_files:
             for cf in CachedFile.objects.filter(id__in=attach_cached_files):
                 if cf.file:

src/pretix/base/services/orders.py

@@ -700,7 +700,7 @@ def _check_positions(event: Event, now_dt: datetime, positions: List[CartPositio
                                 invoice_address=address, force_custom_price=True, max_discount=max_discount)
                 changed_prices[cp.pk] = bprice
             else:
-                bundled_sum = 0
+                bundled_sum = Decimal('0.00')
                 if not cp.addon_to_id:
                     for bundledp in cp.addons.all():
                         if bundledp.is_bundled:
@@ -856,7 +856,7 @@ def _create_order(event: Event, email: str, positions: List[CartPosition], now_d
             total=total,
             testmode=True if sales_channel.testmode_supported and event.testmode else False,
             meta_info=json.dumps(meta_info or {}),
-            require_approval=any(p.item.require_approval for p in positions),
+            require_approval=any(p.requires_approval(invoice_address=address) for p in positions),
             sales_channel=sales_channel.identifier,
             customer=customer,
         )
@@ -941,7 +941,10 @@ def _order_placed_email(event: Event, order: Order, pprov: BasePaymentProvider,
             log_entry,
             invoices=[invoice] if invoice and event.settings.invoice_email_attachment else [],
             attach_tickets=True,
-            attach_ical=event.settings.mail_attach_ical
+            attach_ical=event.settings.mail_attach_ical,
+            attach_other_files=[a for a in [
+                event.settings.get('mail_attachment_new_order', as_type=str, default='')[len('file://'):]
+            ] if a],
         )
     except SendMailException:
         logger.exception('Order received email could not be sent')
@@ -958,7 +961,10 @@ def _order_placed_email_attendee(event: Event, order: Order, position: OrderPosi
             invoices=[],
             attach_tickets=True,
             position=position,
-            attach_ical=event.settings.mail_attach_ical
+            attach_ical=event.settings.mail_attach_ical,
+            attach_other_files=[a for a in [
+                event.settings.get('mail_attachment_new_order', as_type=str, default='')[len('file://'):]
+            ] if a],
         )
     except SendMailException:
         logger.exception('Order received email could not be sent to attendee')
@@ -2065,7 +2071,7 @@ class OrderChangeManager:
         split_order.code = None
         split_order.datetime = now()
         split_order.secret = generate_secret()
-        split_order.require_approval = self.order.require_approval and any(p.item.require_approval for p in split_positions)
+        split_order.require_approval = self.order.require_approval and any(p.requires_approval(invoice_address=self._invoice_address) for p in split_positions)
         split_order.save()
         split_order.log_action('pretix.event.order.changed.split_from', user=self.user, auth=self.auth, data={
             'original_order': self.order.code
@@ -2317,10 +2323,10 @@ class OrderChangeManager:
                 except TaxRule.SaleNotAllowed:
                     raise OrderError(self.error_messages['tax_rule_country_blocked'])
             self._recalculate_total_and_payment_fee()
-            if self.order.status in (Order.STATUS_PENDING, Order.STATUS_PAID):
-                self._reissue_invoice()
             self._check_paid_price_change()
             self._check_paid_to_free()
+            if self.order.status in (Order.STATUS_PENDING, Order.STATUS_PAID):
+                self._reissue_invoice()
             self._clear_tickets_cache()
             self.order.touch()
             self.order.create_transactions()

src/pretix/base/services/quotas.py

@@ -113,10 +113,8 @@ class QuotaAvailability:
         be a few minutes outdated. In this case, you may not rely on the results in the ``count_*`` properties.
         """
         now_dt = now_dt or now()
-        quotas = list(set(self._queue))
-        quotas_original = list(self._queue)
-        self._queue.clear()
-        if not quotas:
+        quota_ids_set = {q.id for q in self._queue}
+        if not quota_ids_set:
             return
 
         if allow_cache:
@@ -129,7 +127,7 @@ class QuotaAvailability:
             elif settings.HAS_REDIS:
                 rc = get_redis_connection("redis")
                 quotas_by_event = defaultdict(list)
-                for q in quotas_original:
+                for q in [_q for _q in self._queue if _q.id in quota_ids_set]:
                     quotas_by_event[q.event_id].append(q)
 
                 for eventid, evquotas in quotas_by_event.items():
@@ -139,16 +137,19 @@ class QuotaAvailability:
                             data = [rv for rv in redisval.decode().split(',')]
                             # Except for some rare situations, we don't want to use cache entries older than 2 minutes
                             if time.time() - int(data[2]) < 120 or allow_cache_stale:
-                                quotas_original.remove(q)
-                                quotas.remove(q)
+                                quota_ids_set.remove(q.id)
                                 if data[1] == "None":
                                     self.results[q] = int(data[0]), None
                                 else:
                                     self.results[q] = int(data[0]), int(data[1])
 
-        if not quotas:
+        if not quota_ids_set:
             return
 
+        quotas = [_q for _q in self._queue if _q.id in quota_ids_set]
+        quotas_original = list(quotas)
+        self._queue.clear()
+
         self._compute(quotas, now_dt)
 
         for q in quotas_original:
@@ -284,15 +285,16 @@ class QuotaAvailability:
         seq = Q(subevent_id__in=subevents)
         if None in subevents:
             seq |= Q(subevent__isnull=True)
+        quota_ids = {q.pk for q in quotas}
         op_lookup = OrderPosition.objects.filter(
             order__status__in=[Order.STATUS_PAID, Order.STATUS_PENDING],
             order__event_id__in=events,
         ).filter(seq).filter(
             Q(
                 Q(variation_id__isnull=True) &
-                Q(item_id__in={i['item_id'] for i in q_items if self._quota_objects[i['quota_id']] in quotas})
+                Q(item_id__in={i['item_id'] for i in q_items if i['quota_id'] in quota_ids})
             ) | Q(
-                variation_id__in={i['itemvariation_id'] for i in q_vars if self._quota_objects[i['quota_id']] in quotas})
+                variation_id__in={i['itemvariation_id'] for i in q_vars if i['quota_id'] in quota_ids})
         ).order_by()
         if any(q.release_after_exit for q in quotas):
             op_lookup = op_lookup.annotate(
@@ -359,6 +361,7 @@ class QuotaAvailability:
             func = 'GREATEST'
 
         subevents = {q.subevent_id for q in quotas}
+        quota_ids = {q.pk for q in quotas}
         seq = Q(subevent_id__in=subevents)
         if None in subevents:
             seq |= Q(subevent__isnull=True)
@@ -370,10 +373,9 @@ class QuotaAvailability:
             Q(
                 Q(
                     Q(variation_id__isnull=True) &
-                    Q(item_id__in={i['item_id'] for i in q_items if self._quota_objects[i['quota_id']] in quotas})
+                    Q(item_id__in={i['item_id'] for i in q_items if i['quota_id'] in quota_ids})
                 ) | Q(
-                    variation_id__in={i['itemvariation_id'] for i in q_vars if
-                                      self._quota_objects[i['quota_id']] in quotas}
+                    variation_id__in={i['itemvariation_id'] for i in q_vars if i['quota_id'] in quota_ids}
                 ) | Q(
                     quota_id__in=[q.pk for q in quotas]
                 )
@@ -398,6 +400,7 @@ class QuotaAvailability:
     def _compute_carts(self, quotas, q_items, q_vars, size_left, now_dt):
         events = {q.event_id for q in quotas}
         subevents = {q.subevent_id for q in quotas}
+        quota_ids = {q.pk for q in quotas}
         seq = Q(subevent_id__in=subevents)
         if None in subevents:
             seq |= Q(subevent__isnull=True)
@@ -413,9 +416,9 @@ class QuotaAvailability:
             Q(
                 Q(
                     Q(variation_id__isnull=True) &
-                    Q(item_id__in={i['item_id'] for i in q_items if self._quota_objects[i['quota_id']] in quotas})
+                    Q(item_id__in={i['item_id'] for i in q_items if i['quota_id'] in quota_ids})
                 ) | Q(
-                    variation_id__in={i['itemvariation_id'] for i in q_vars if self._quota_objects[i['quota_id']] in quotas}
+                    variation_id__in={i['itemvariation_id'] for i in q_vars if i['quota_id'] in quota_ids}
                 )
             )
         ).order_by().values('item_id', 'subevent_id', 'variation_id').annotate(c=Count('*'))
@@ -434,6 +437,7 @@ class QuotaAvailability:
     def _compute_waitinglist(self, quotas, q_items, q_vars, size_left):
         events = {q.event_id for q in quotas}
         subevents = {q.subevent_id for q in quotas}
+        quota_ids = {q.pk for q in quotas}
         seq = Q(subevent_id__in=subevents)
         if None in subevents:
             seq |= Q(subevent__isnull=True)
@@ -444,9 +448,8 @@ class QuotaAvailability:
             Q(
                 Q(
                     Q(variation_id__isnull=True) &
-                    Q(item_id__in={i['item_id'] for i in q_items if self._quota_objects[i['quota_id']] in quotas})
-                ) | Q(variation_id__in={i['itemvariation_id'] for i in q_vars if
-                                        self._quota_objects[i['quota_id']] in quotas})
+                    Q(item_id__in={i['item_id'] for i in q_items if i['quota_id'] in quota_ids})
+                ) | Q(variation_id__in={i['itemvariation_id'] for i in q_vars if i['quota_id'] in quota_ids})
             )
         ).order_by().values('item_id', 'subevent_id', 'variation_id').annotate(c=Count('*'))
         for line in w_lookup:

src/pretix/base/settings.py

@@ -136,11 +136,15 @@ DEFAULTS = {
         'type': int,
         'form_class': forms.IntegerField,
         'serializer_class': serializers.IntegerField,
+        'serializer_kwargs': dict(
+            min_value=1,
+        ),
         'form_kwargs': dict(
             min_value=1,
+            required=True,
             label=_("Maximum number of items per order"),
             help_text=_("Add-on products will not be counted.")
-        )
+        ),
     },
     'display_net_prices': {
         'default': 'False',
@@ -368,11 +372,12 @@ DEFAULTS = {
         'form_class': I18nFormField,
         'serializer_class': I18nField,
         'form_kwargs': dict(
-            label=_("Custom address field"),
+            label=_("Custom recipient field"),
             widget=I18nTextInput,
             help_text=_("If you want to add a custom text field, e.g. for a country-specific registration number, to "
                         "your invoice address form, please fill in the label here. This label will both be used for "
-                        "asking the user to input their details as well as for displaying the value on the invoice. "
+                        "asking the user to input their details as well as for displaying the value on the invoice. It will "
+                        "be shown on the invoice below the headline. "
                         "The field will not be required.")
         )
     },
@@ -440,9 +445,11 @@ DEFAULTS = {
         'type': int,
         'form_class': forms.IntegerField,
         'serializer_class': serializers.IntegerField,
+        'serializer_kwargs': dict(),
         'form_kwargs': dict(
             label=_("Minimum length of invoice number after prefix"),
             help_text=_("The part of your invoice number after your prefix will be filled up with leading zeros up to this length, e.g. INV-001 or INV-00001."),
+            required=True,
         )
     },
     'invoice_numbers_consecutive': {
@@ -506,6 +513,7 @@ DEFAULTS = {
                 MinValueValidator(12),
                 MaxValueValidator(64),
             ],
+            required=True,
             widget=forms.NumberInput(
                 attrs={
                     'min': '12',
@@ -520,9 +528,13 @@ DEFAULTS = {
         'type': int,
         'form_class': forms.IntegerField,
         'serializer_class': serializers.IntegerField,
+        'serializer_kwargs': dict(
+            min_value=0,
+        ),
         'form_kwargs': dict(
             min_value=0,
             label=_("Reservation period"),
+            required=True,
             help_text=_("The number of minutes the items in a user's cart are reserved for this user."),
         )
     },
@@ -577,6 +589,7 @@ DEFAULTS = {
         'form_kwargs': dict(
             label=_("Set payment term"),
             widget=forms.RadioSelect,
+            required=True,
             choices=(
                 ('days', _("in days")),
                 ('minutes', _("in minutes"))
@@ -1091,9 +1104,13 @@ DEFAULTS = {
         'type': int,
         'serializer_class': serializers.IntegerField,
         'form_class': forms.IntegerField,
+        'serializer_kwargs': dict(
+            min_value=1,
+        ),
         'form_kwargs': dict(
             label=_("Waiting list response time"),
             min_value=1,
+            required=True,
             help_text=_("If a ticket voucher is sent to a person on the waiting list, it has to be redeemed within this "
                         "number of hours until it expires and can be re-assigned to the next person on the list."),
             widget=forms.NumberInput(),
@@ -1512,6 +1529,17 @@ DEFAULTS = {
         ),
         'serializer_class': serializers.URLField,
     },
+    'privacy_url': {
+        'default': None,
+        'type': str,
+        'form_class': forms.URLField,
+        'form_kwargs': dict(
+            label=_("Privacy Policy URL"),
+            help_text=_("This should point e.g. to a part of your website that explains how you use data gathered in "
+                        "your ticket shop."),
+        ),
+        'serializer_class': serializers.URLField,
+    },
     'confirm_texts': {
         'default': LazyI18nStringList(),
         'type': LazyI18nStringList,
@@ -1676,6 +1704,30 @@ You can change your order details and view the status of your order at
 Best regards,
 Your {event} team"""))
     },
+    'mail_attachment_new_order': {
+        'default': None,
+        'type': File,
+        'form_class': ExtFileField,
+        'form_kwargs': dict(
+            label=_('Attachment for new orders'),
+            ext_whitelist=(".pdf",),
+            max_size=settings.FILE_UPLOAD_MAX_SIZE_EMAIL_AUTO_ATTACHMENT,
+            help_text=_('This file will be attached to the first email that we send for every new order. Therefore it will be '
+                        'combined with the "Placed order", "Free order", or "Received order" texts from above. It will be sent '
+                        'to both order contacts and attendees. You can use this e.g. to send your terms of service. Do not use '
+                        'it to send non-public information as this file might be sent before payment is confirmed or the order '
+                        'is approved. To avoid this vital email going to spam, you can only upload PDF files of up to {size} MB.').format(
+                size=settings.FILE_UPLOAD_MAX_SIZE_EMAIL_AUTO_ATTACHMENT // (1024 * 1024),
+            )
+        ),
+        'serializer_class': UploadedFileField,
+        'serializer_kwargs': dict(
+            allowed_types=[
+                'application/pdf'
+            ],
+            max_size=settings.FILE_UPLOAD_MAX_SIZE_EMAIL_AUTO_ATTACHMENT,
+        )
+    },
     'mail_send_order_placed_attendee': {
         'type': bool,
         'default': 'False'
@@ -2489,6 +2541,77 @@ Your {organizer} team"""))
                         'many years. If you keep it empty, gift cards do not have an explicit expiry date.'),
         )
     },
+    'cookie_consent': {
+        'default': 'False',
+        'form_class': forms.BooleanField,
+        'serializer_class': serializers.BooleanField,
+        'form_kwargs': dict(
+            label=_("Enable cookie consent management features"),
+        ),
+        'type': bool,
+    },
+    'cookie_consent_dialog_text': {
+        'default': LazyI18nString.from_gettext(gettext_noop(
+            'By clicking "Accept all cookies", you agree to the storing of cookies and use of similar technologies on '
+            'your device.'
+        )),
+        'type': LazyI18nString,
+        'serializer_class': I18nField,
+        'form_class': I18nFormField,
+        'form_kwargs': dict(
+            label=_("Dialog text"),
+            widget=I18nTextarea,
+            widget_kwargs={'attrs': {'rows': '3', 'data-display-dependency': '#id_settings-cookie_consent'}},
+        )
+    },
+    'cookie_consent_dialog_text_secondary': {
+        'default': LazyI18nString.from_gettext(gettext_noop(
+            'We use cookies and similar technologies to gather data that allows us to improve this website and our '
+            'offerings. If you do not agree, we will only use cookies if they are essential to providing the services '
+            'this website offers.'
+        )),
+        'type': LazyI18nString,
+        'serializer_class': I18nField,
+        'form_class': I18nFormField,
+        'form_kwargs': dict(
+            label=_("Secondary dialog text"),
+            widget=I18nTextarea,
+            widget_kwargs={'attrs': {'rows': '3', 'data-display-dependency': '#id_settings-cookie_consent'}},
+        )
+    },
+    'cookie_consent_dialog_title': {
+        'default': LazyI18nString.from_gettext(gettext_noop('Privacy settings')),
+        'type': LazyI18nString,
+        'serializer_class': I18nField,
+        'form_class': I18nFormField,
+        'form_kwargs': dict(
+            label=_('Dialog title'),
+            widget=I18nTextInput,
+            widget_kwargs={'attrs': {'data-display-dependency': '#id_settings-cookie_consent'}},
+        )
+    },
+    'cookie_consent_dialog_button_yes': {
+        'default': LazyI18nString.from_gettext(gettext_noop('Accept all cookies')),
+        'type': LazyI18nString,
+        'serializer_class': I18nField,
+        'form_class': I18nFormField,
+        'form_kwargs': dict(
+            label=_('"Accept" button description'),
+            widget=I18nTextInput,
+            widget_kwargs={'attrs': {'data-display-dependency': '#id_settings-cookie_consent'}},
+        )
+    },
+    'cookie_consent_dialog_button_no': {
+        'default': LazyI18nString.from_gettext(gettext_noop('Required cookies only')),
+        'type': LazyI18nString,
+        'serializer_class': I18nField,
+        'form_class': I18nFormField,
+        'form_kwargs': dict(
+            label=_('"Reject" button description'),
+            widget=I18nTextInput,
+            widget_kwargs={'attrs': {'data-display-dependency': '#id_settings-cookie_consent'}},
+        )
+    },
     'seating_choice': {
         'default': 'True',
         'form_class': forms.BooleanField,

src/pretix/base/templates/pretixbase/email/base.html

@@ -85,9 +85,6 @@
             -webkit-hyphens: auto;
             hyphens: auto;
         }
-        p:last-child {
-            margin-bottom: 0;
-        }
 
         .footer {
             padding: 10px;
@@ -116,6 +113,9 @@
             width: 100%;
             height: auto;
         }
+        .content {
+            text-align: left;
+        }
 
         .content table {
             width: 100%;
@@ -142,7 +142,8 @@
         }
 
         .order-button {
-            padding-top: 5px
+            padding-top: 5px;
+            text-align: center;
         }
         .order-button a.button {
             font-size: 12px;
@@ -173,7 +174,7 @@
             body {
                 direction: rtl;
             }
-            .content table td {
+            .content {
                 text-align: right;
             }
         {% endif %}

src/pretix/base/templates/pretixbase/email/order_details.html

@@ -1,5 +1,6 @@
 {% load eventurl %}
 {% load i18n %}
+{% load oneline %}
 
 {% if position %}
     <div class="order-info">
@@ -107,6 +108,10 @@
                                         {% if event.settings.show_times %}
                                             {{ groupkey.2.date_from|date:"TIME_FORMAT" }}
                                         {% endif %}
+                                        {% if groupkey.2.location %}
+                                            <br>
+                                            {{ groupkey.2.location|oneline }}
+                                        {% endif %}
                                     {% endif %}
                                     {% if groupkey.3 %} {# attendee name #}
                                         <br>

src/pretix/base/templates/pretixbase/email/simple_logo.html

@@ -104,9 +104,6 @@
             -webkit-hyphens: auto;
             hyphens: auto;
         }
-        p:last-child {
-            margin-bottom: 0;
-        }
 
         .footer {
             padding: 10px;
@@ -136,6 +133,10 @@
             display: block;
         }
 
+        .content {
+            text-align: left;
+        }
+
         .content table {
             width: 100%;
         }
@@ -197,7 +198,7 @@
             body {
                 direction: rtl;
             }
-            .content table td {
+            .content {
                 text-align: right;
             }
         {% endif %}

src/pretix/base/templatetags/oneline.py

@@ -0,0 +1,31 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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 django import template
+
+register = template.Library()
+
+
+@register.filter
+def oneline(value):
+    if not value:
+        return ''
+    return ', '.join([l.strip() for l in str(value).splitlines() if l and l.strip()])

src/pretix/base/templatetags/rich_text.py

@@ -138,7 +138,7 @@ def truelink_callback(attrs, new=False):
     text = re.sub(r'[^a-zA-Z0-9.\-/_ ]', '', attrs.get('_text'))  # clean up link text
     url = attrs.get((None, 'href'), '/')
     href_url = urllib.parse.urlparse(url)
-    if URL_RE.match(text) and href_url.scheme not in ('tel', 'mailto'):
+    if (None, 'href') in attrs and URL_RE.match(text) and href_url.scheme not in ('tel', 'mailto'):
         # link text looks like a url
         if text.startswith('//'):
             text = 'https:' + text
@@ -157,6 +157,8 @@ def abslink_callback(attrs, new=False):
     Makes sure that all links will be absolute links and will be opened in a new page with no
     window.opener attribute.
     """
+    if (None, 'href') not in attrs:
+        return attrs
     url = attrs.get((None, 'href'), '/')
     if not url.startswith('mailto:') and not url.startswith('tel:'):
         attrs[None, 'href'] = urllib.parse.urljoin(settings.SITE_URL, url)

src/pretix/base/views/errors.py

@@ -30,67 +30,85 @@ from django.utils.translation import gettext as _
 from django.views.decorators.csrf import requires_csrf_token
 from sentry_sdk import last_event_id
 
+from pretix.base.i18n import language
+from pretix.base.middleware import get_language_from_request
+
 
 def csrf_failure(request, reason=""):
-    t = get_template('csrffail.html')
-    c = {
-        'reason': reason,
-        'no_referer': reason == REASON_NO_REFERER,
-        'no_referer1': _(
-            "You are seeing this message because this HTTPS site requires a "
-            "'Referer header' to be sent by your Web browser, but none was "
-            "sent. This header is required for security reasons, to ensure "
-            "that your browser is not being hijacked by third parties."),
-        'no_referer2': _(
-            "If you have configured your browser to disable 'Referer' headers, "
-            "please re-enable them, at least for this site, or for HTTPS "
-            "connections, or for 'same-origin' requests."),
-        'no_cookie': reason == REASON_NO_CSRF_COOKIE,
-        'no_cookie1': _(
-            "You are seeing this message because this site requires a CSRF "
-            "cookie when submitting forms. This cookie is required for "
-            "security reasons, to ensure that your browser is not being "
-            "hijacked by third parties."),
-        'no_cookie2': _(
-            "If you have configured your browser to disable cookies, please "
-            "re-enable them, at least for this site, or for 'same-origin' "
-            "requests."),
-    }
-    return HttpResponseForbidden(t.render(c), content_type='text/html')
+    try:
+        locale = get_language_from_request(request)
+    except:
+        locale = "en"
+    with language(locale):  # Middleware might not have run, need to do this manually
+        t = get_template('csrffail.html')
+        c = {
+            'reason': reason,
+            'no_referer': reason == REASON_NO_REFERER,
+            'no_referer1': _(
+                "You are seeing this message because this HTTPS site requires a "
+                "'Referer header' to be sent by your Web browser, but none was "
+                "sent. This header is required for security reasons, to ensure "
+                "that your browser is not being hijacked by third parties."),
+            'no_referer2': _(
+                "If you have configured your browser to disable 'Referer' headers, "
+                "please re-enable them, at least for this site, or for HTTPS "
+                "connections, or for 'same-origin' requests."),
+            'no_cookie': reason == REASON_NO_CSRF_COOKIE,
+            'no_cookie1': _(
+                "You are seeing this message because this site requires a CSRF "
+                "cookie when submitting forms. This cookie is required for "
+                "security reasons, to ensure that your browser is not being "
+                "hijacked by third parties."),
+            'no_cookie2': _(
+                "If you have configured your browser to disable cookies, please "
+                "re-enable them, at least for this site, or for 'same-origin' "
+                "requests."),
+        }
+        return HttpResponseForbidden(t.render(c), content_type='text/html')
 
 
 @requires_csrf_token
 def page_not_found(request, exception):
-    exception_repr = exception.__class__.__name__
-    # Try to get an "interesting" exception message, if any (and not the ugly
-    # Resolver404 dictionary)
     try:
-        message = exception.args[0]
-    except (AttributeError, IndexError):
-        pass
-    else:
-        if isinstance(message, (str, Promise)):
-            exception_repr = str(message)
-    context = {
-        'request_path': request.path,
-        'exception': exception_repr,
-    }
-    template = get_template('404.html')
-    body = template.render(context, request)
-    r = HttpResponseNotFound(body)
-    r.xframe_options_exempt = True
-    return r
+        locale = get_language_from_request(request)
+    except:
+        locale = "en"
+    with language(locale):  # Middleware might not have run, need to do this manually
+        exception_repr = exception.__class__.__name__
+        # Try to get an "interesting" exception message, if any (and not the ugly
+        # Resolver404 dictionary)
+        try:
+            message = exception.args[0]
+        except (AttributeError, IndexError):
+            pass
+        else:
+            if isinstance(message, (str, Promise)):
+                exception_repr = str(message)
+        context = {
+            'request_path': request.path,
+            'exception': exception_repr,
+        }
+        template = get_template('404.html')
+        body = template.render(context, request)
+        r = HttpResponseNotFound(body)
+        r.xframe_options_exempt = True
+        return r
 
 
 @requires_csrf_token
 def server_error(request):
     try:
-        template = loader.get_template('500.html')
-    except TemplateDoesNotExist:
-        return HttpResponseServerError('<h1>Server Error (500)</h1>', content_type='text/html')
-    r = HttpResponseServerError(template.render({
-        'request': request,
-        'sentry_event_id': last_event_id(),
-    }))
-    r.xframe_options_exempt = True
-    return r
+        locale = get_language_from_request(request)
+    except:
+        locale = "en"
+    with language(locale):  # Middleware might not have run, need to do this manually
+        try:
+            template = loader.get_template('500.html')
+        except TemplateDoesNotExist:
+            return HttpResponseServerError('<h1>Server Error (500)</h1>', content_type='text/html')
+        r = HttpResponseServerError(template.render({
+            'request': request,
+            'sentry_event_id': last_event_id(),
+        }))
+        r.xframe_options_exempt = True
+        return r

src/pretix/base/views/mixins.py

@@ -355,20 +355,29 @@ class OrderQuestionsViewMixin(BaseQuestionsViewMixin):
                 override[k].pop('initial', None)
         return override_sets
 
+    @cached_property
+    def vat_id_validation_enabled(self):
+        return any([p.item.tax_rule and (p.item.tax_rule.eu_reverse_charge or p.item.tax_rule.custom_rules)
+                    for p in self.positions])
+
     @cached_property
     def invoice_form(self):
         if not self.address_asked and self.request.event.settings.invoice_name_required:
             f = self.invoice_name_form_class(
                 data=self.request.POST if self.request.method == "POST" else None,
                 event=self.request.event,
-                instance=self.invoice_address, validate_vat_id=False,
+                instance=self.invoice_address,
+                validate_vat_id=False,
+                request=self.request,
                 all_optional=self.all_optional
             )
         elif self.address_asked:
             f = self.invoice_form_class(
                 data=self.request.POST if self.request.method == "POST" else None,
                 event=self.request.event,
-                instance=self.invoice_address, validate_vat_id=False,
+                instance=self.invoice_address,
+                validate_vat_id=self.vat_id_validation_enabled,
+                request=self.request,
                 all_optional=self.all_optional,
             )
         else:

src/pretix/control/forms/event.py

@@ -43,6 +43,7 @@ from django.core.validators import validate_email
 from django.db.models import Prefetch, Q, prefetch_related_objects
 from django.forms import CheckboxSelectMultiple, formset_factory
 from django.urls import reverse
+from django.utils.functional import cached_property
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
 from django.utils.timezone import get_current_timezone_name
@@ -534,34 +535,39 @@ class EventSettingsForm(SettingsForm):
         'og_image',
     ]
 
+    def _resolve_virtual_keys_input(self, data, prefix=''):
+        # set all dependants of virtual_keys and
+        # delete all virtual_fields to prevent them from being saved
+        for virtual_key in self.virtual_keys:
+            if prefix + virtual_key not in data:
+                continue
+            base_key = prefix + virtual_key.rsplit('_', 2)[0]
+            asked_key = base_key + '_asked'
+            required_key = base_key + '_required'
+
+            if data[prefix + virtual_key] == 'optional':
+                data[asked_key] = True
+                data[required_key] = False
+            elif data[prefix + virtual_key] == 'required':
+                data[asked_key] = True
+                data[required_key] = True
+            # Explicitly check for 'do_not_ask'.
+            # Do not overwrite as default-behaviour when no value for virtual field is transmitted!
+            elif data[prefix + virtual_key] == 'do_not_ask':
+                data[asked_key] = False
+                data[required_key] = False
+
+            # hierarkey.forms cannot handle non-existent keys in cleaned_data => do not delete, but set to None
+            if not prefix:
+                data[virtual_key] = None
+        return data
+
     def clean(self):
         data = super().clean()
         settings_dict = self.event.settings.freeze()
         settings_dict.update(data)
 
-        # set all dependants of virtual_keys and
-        # delete all virtual_fields to prevent them from being saved
-        for virtual_key in self.virtual_keys:
-            if virtual_key not in data:
-                continue
-            base_key = virtual_key.rsplit('_', 2)[0]
-            asked_key = base_key + '_asked'
-            required_key = base_key + '_required'
-
-            if data[virtual_key] == 'optional':
-                data[asked_key] = True
-                data[required_key] = False
-            elif data[virtual_key] == 'required':
-                data[asked_key] = True
-                data[required_key] = True
-            # Explicitly check for 'do_not_ask'.
-            # Do not overwrite as default-behaviour when no value for virtual field is transmitted!
-            elif data[virtual_key] == 'do_not_ask':
-                data[asked_key] = False
-                data[required_key] = False
-
-            # hierarkey.forms cannot handle non-existent keys in cleaned_data => do not delete, but set to None
-            data[virtual_key] = None
+        data = self._resolve_virtual_keys_input(data)
 
         validate_event_settings(self.event, data)
         return data
@@ -621,6 +627,35 @@ class EventSettingsForm(SettingsForm):
             else:
                 self.initial[virtual_key] = 'do_not_ask'
 
+    @cached_property
+    def changed_data(self):
+        data = []
+
+        # We need to resolve the mapping between our "virtual" fields and the "real"fields here, otherwise
+        # they are detected as "changed" on every save even though they aren't.
+        in_data = self._resolve_virtual_keys_input(self.data.copy(), prefix=f'{self.prefix}-' if self.prefix else '')
+
+        for name, field in self.fields.items():
+            prefixed_name = self.add_prefix(name)
+            data_value = field.widget.value_from_datadict(in_data, self.files, prefixed_name)
+            if not field.show_hidden_initial:
+                # Use the BoundField's initial as this is the value passed to
+                # the widget.
+                initial_value = self[name].initial
+            else:
+                initial_prefixed_name = self.add_initial_prefix(name)
+                hidden_widget = field.hidden_widget()
+                try:
+                    initial_value = field.to_python(hidden_widget.value_from_datadict(
+                        self.data, self.files, initial_prefixed_name))
+                except ValidationError:
+                    # Always assume data has changed if validation fails.
+                    data.append(name)
+                    continue
+            if field.has_changed(initial_value, data_value):
+                data.append(name)
+        return data
+
 
 class CancelSettingsForm(SettingsForm):
     auto_fields = [
@@ -837,6 +872,7 @@ class MailSettingsForm(SMTPSettingsMixin, SettingsForm):
         'mail_from_name',
         'mail_attach_ical',
         'mail_attach_tickets',
+        'mail_attachment_new_order',
     ]
 
     mail_sales_channel_placed_paid = forms.MultipleChoiceField(
@@ -1179,6 +1215,7 @@ class TaxRuleLineForm(I18nForm):
             ('reverse', _('Reverse charge')),
             ('no', _('No VAT')),
             ('block', _('Sale not allowed')),
+            ('require_approval', _('Order requires approval')),
         ],
     )
     rate = forms.DecimalField(
@@ -1212,7 +1249,7 @@ TaxRuleLineFormSet = formset_factory(
 class TaxRuleForm(I18nModelForm):
     class Meta:
         model = TaxRule
-        fields = ['name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country']
+        fields = ['name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country', 'internal_name', 'keep_gross_if_rate_changes']
 
 
 class WidgetCodeForm(forms.Form):

src/pretix/control/forms/filter.py

@@ -811,6 +811,213 @@ class OrderSearchFilterForm(OrderFilterForm):
         )
 
 
+class OrderPaymentSearchFilterForm(forms.Form):
+    orders = {'id': 'id', 'local_id': 'local_id', 'state': 'state', 'amount': 'amount', 'order': 'order',
+              'created': 'created', 'payment_date': 'payment_date', 'provider': 'provider', 'info': 'info',
+              'fee': 'fee'}
+
+    query = forms.CharField(
+        label=_('Search for…'),
+        widget=forms.TextInput(attrs={
+            'placeholder': _('Search for…'),
+            'autofocus': 'autofocus'
+        }),
+        required=False,
+    )
+    event = forms.ModelChoiceField(
+        label=_('Event'),
+        queryset=Event.objects.none(),
+        required=False,
+        widget=Select2(
+            attrs={
+                'data-model-select2': 'event',
+                'data-select2-url': reverse_lazy('control:events.typeahead'),
+                'data-placeholder': _('All events')
+            }
+        )
+    )
+    organizer = forms.ModelChoiceField(
+        label=_('Organizer'),
+        queryset=Organizer.objects.none(),
+        required=False,
+        empty_label=_('All organizers'),
+        widget=Select2(
+            attrs={
+                'data-model-select2': 'generic',
+                'data-select2-url': reverse_lazy('control:organizers.select2'),
+                'data-placeholder': _('All organizers')
+            }
+        ),
+    )
+    state = forms.ChoiceField(
+        label=_('Status'),
+        required=False,
+        choices=[('', _('All payments'))] + list(OrderPayment.PAYMENT_STATES),
+    )
+    provider = forms.ChoiceField(
+        label=_('Payment provider'),
+        choices=[
+            ('', _('All payment providers')),
+        ],
+        required=False,
+    )
+    created_from = forms.DateField(
+        label=_('Payment created from'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+    created_until = forms.DateField(
+        label=_('Payment created until'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+    completed_from = forms.DateField(
+        label=_('Paid from'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+    completed_until = forms.DateField(
+        label=_('Paid until'),
+        required=False,
+        widget=DatePickerWidget,
+    )
+    amount = forms.CharField(
+        label=_('Amount'),
+        required=False,
+        widget=forms.NumberInput(attrs={
+            'placeholder': _('Amount'),
+        }),
+    )
+
+    def __init__(self, *args, **kwargs):
+        self.request = kwargs.pop('request')
+        super().__init__(*args, **kwargs)
+
+        self.fields['ordering'] = forms.ChoiceField(
+            choices=sum([
+                [(a, a), ('-' + a, '-' + a)]
+                for a in self.orders.keys()
+            ], []),
+            required=False
+        )
+
+        if self.request.user.has_active_staff_session(self.request.session.session_key):
+            self.fields['organizer'].queryset = Organizer.objects.all()
+            self.fields['event'].queryset = Event.objects.all()
+
+        else:
+            self.fields['organizer'].queryset = Organizer.objects.filter(
+                pk__in=self.request.user.teams.values_list('organizer', flat=True)
+            )
+            self.fields['event'].queryset = self.request.user.get_events_with_permission('can_view_orders')
+
+        self.fields['provider'].choices += get_all_payment_providers()
+
+    def filter_qs(self, qs):
+        fdata = self.cleaned_data
+
+        if fdata.get('created_from'):
+            date_start = make_aware(datetime.combine(
+                fdata.get('created_from'),
+                time(hour=0, minute=0, second=0, microsecond=0)
+            ), get_current_timezone())
+            qs = qs.filter(created__gte=date_start)
+
+        if fdata.get('created_until'):
+            date_end = make_aware(datetime.combine(
+                fdata.get('created_until') + timedelta(days=1),
+                time(hour=0, minute=0, second=0, microsecond=0)
+            ), get_current_timezone())
+            qs = qs.filter(created__lt=date_end)
+
+        if fdata.get('completed_from'):
+            date_start = make_aware(datetime.combine(
+                fdata.get('completed_from'),
+                time(hour=0, minute=0, second=0, microsecond=0)
+            ), get_current_timezone())
+            qs = qs.filter(payment_date__gte=date_start)
+
+        if fdata.get('completed_until'):
+            date_end = make_aware(datetime.combine(
+                fdata.get('completed_until') + timedelta(days=1),
+                time(hour=0, minute=0, second=0, microsecond=0)
+            ), get_current_timezone())
+            qs = qs.filter(payment_date__lt=date_end)
+
+        if fdata.get('event'):
+            qs = qs.filter(order__event=fdata.get('event'))
+
+        if fdata.get('organizer'):
+            qs = qs.filter(order__event__organizer=fdata.get('organizer'))
+
+        if fdata.get('state'):
+            qs = qs.filter(state=fdata.get('state'))
+
+        if fdata.get('provider'):
+            qs = qs.filter(provider=fdata.get('provider'))
+
+        if fdata.get('query'):
+            u = fdata.get('query')
+
+            matching_invoices = Invoice.objects.filter(
+                Q(invoice_no__iexact=u)
+                | Q(invoice_no__iexact=u.zfill(5))
+                | Q(full_invoice_no__iexact=u)
+            ).values_list('order_id', flat=True)
+
+            matching_invoice_addresses = InvoiceAddress.objects.filter(
+                Q(
+                    Q(name_cached__icontains=u) | Q(company__icontains=u)
+                )
+            ).values_list('order_id', flat=True)
+
+            if "-" in u:
+                code = (Q(event__slug__icontains=u.rsplit("-", 1)[0])
+                        & Q(code__icontains=Order.normalize_code(u.rsplit("-", 1)[1])))
+            else:
+                code = Q(code__icontains=Order.normalize_code(u))
+
+            matching_orders = Order.objects.filter(
+                Q(
+                    code
+                    | Q(email__icontains=u)
+                    | Q(comment__icontains=u)
+                )
+            ).values_list('id', flat=True)
+
+            mainq = (
+                Q(order__id__in=matching_invoices)
+                | Q(order__id__in=matching_invoice_addresses)
+                | Q(order__id__in=matching_orders)
+            )
+
+            qs = qs.filter(mainq)
+
+        if fdata.get('amount'):
+            amount = fdata.get('amount')
+
+            def is_decimal(value):
+                result = True
+                parts = value.split('.', maxsplit=1)
+                for part in parts:
+                    result = result & part.isdecimal()
+                return result
+
+            if is_decimal(amount):
+                qs = qs.filter(amount=Decimal(amount))
+
+        if fdata.get('ordering'):
+            p = self.cleaned_data.get('ordering')
+            if p.startswith('-') and p not in self.orders:
+                qs = qs.order_by('-' + self.orders[p[1:]])
+            else:
+                qs = qs.order_by(self.orders[p])
+        else:
+            qs = qs.order_by('-created')
+
+        return qs
+
+
 class SubEventFilterForm(FilterForm):
     orders = {
         'date_from': 'date_from',
@@ -2018,6 +2225,15 @@ class DeviceFilterForm(FilterForm):
         ],
         required=False,
     )
+    state = forms.ChoiceField(
+        label=_('Device status'),
+        choices=[
+            ('', _('All devices')),
+            ('active', _('Active devices')),
+            ('revoked', _('Revoked devices'))
+        ],
+        required=False
+    )
 
     def __init__(self, *args, **kwargs):
         request = kwargs.pop('request')
@@ -2047,6 +2263,11 @@ class DeviceFilterForm(FilterForm):
         if fdata.get('gate'):
             qs = qs.filter(gate=fdata['gate'])
 
+        if fdata.get('state') == 'active':
+            qs = qs.filter(revoked=False)
+        elif fdata.get('state') == 'revoked':
+            qs = qs.filter(revoked=True)
+
         if fdata.get('ordering'):
             qs = qs.order_by(self.get_order_by())
         else:

src/pretix/control/forms/item.py

@@ -713,6 +713,7 @@ class ItemVariationForm(I18nModelForm):
             'default_price',
             'original_price',
             'description',
+            'require_approval',
             'require_membership',
             'require_membership_hidden',
             'require_membership_types',

src/pretix/control/forms/orders.py

@@ -452,7 +452,7 @@ class OrderPositionChangeForm(forms.Form):
 
     @staticmethod
     def taxrule_label_from_instance(obj):
-        return f"{obj.name} ({obj.rate} %)"
+        return f"{obj.internal_name or obj.name} ({obj.rate} %)"
 
     def __init__(self, *args, **kwargs):
         instance = kwargs.pop('instance')

src/pretix/control/forms/organizer.py

@@ -44,12 +44,16 @@ from django.utils.safestring import mark_safe
 from django.utils.translation import gettext_lazy as _, pgettext_lazy
 from django_scopes.forms import SafeModelMultipleChoiceField
 from i18nfield.forms import I18nFormField, I18nTextarea
+from phonenumber_field.formfields import PhoneNumberField
 from pytz import common_timezones
 
 from pretix.api.models import WebHook
 from pretix.api.webhooks import get_all_webhook_events
 from pretix.base.forms import I18nModelForm, PlaceholderValidator, SettingsForm
-from pretix.base.forms.questions import NamePartsFormField
+from pretix.base.forms.questions import (
+    NamePartsFormField, WrappedPhoneNumberPrefixWidget, get_country_by_locale,
+    get_phone_prefix,
+)
 from pretix.base.forms.widgets import SplitDateTimePickerWidget
 from pretix.base.models import (
     Customer, Device, EventMetaProperty, Gate, GiftCard, Membership,
@@ -307,8 +311,14 @@ class OrganizerSettingsForm(SettingsForm):
         'theme_color_danger',
         'theme_color_background',
         'theme_round_borders',
-        'primary_font'
-
+        'primary_font',
+        'privacy_url',
+        'cookie_consent',
+        'cookie_consent_dialog_title',
+        'cookie_consent_dialog_text',
+        'cookie_consent_dialog_text_secondary',
+        'cookie_consent_dialog_button_yes',
+        'cookie_consent_dialog_button_no',
     ]
 
     organizer_logo_image = ExtFileField(
@@ -529,11 +539,21 @@ class CustomerUpdateForm(forms.ModelForm):
 
     class Meta:
         model = Customer
-        fields = ['is_active', 'name_parts', 'email', 'is_verified', 'locale']
+        fields = ['is_active', 'name_parts', 'email', 'is_verified', 'phone', 'locale']
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
+        if not self.instance.phone and (self.instance.organizer.settings.region or self.instance.locale):
+            country_code = self.instance.organizer.settings.region or get_country_by_locale(self.instance.locale)
+            phone_prefix = get_phone_prefix(country_code)
+            if phone_prefix:
+                self.initial['phone'] = "+{}.".format(phone_prefix)
 
+        self.fields['phone'] = PhoneNumberField(
+            label=_('Phone'),
+            required=False,
+            widget=WrappedPhoneNumberPrefixWidget()
+        )
         self.fields['name_parts'] = NamePartsFormField(
             max_length=255,
             required=False,
@@ -559,6 +579,13 @@ class CustomerUpdateForm(forms.ModelForm):
         return self.cleaned_data
 
 
+class CustomerCreateForm(CustomerUpdateForm):
+
+    class Meta:
+        model = Customer
+        fields = ['identifier', 'is_active', 'name_parts', 'email', 'is_verified', 'locale']
+
+
 class MembershipUpdateForm(forms.ModelForm):
 
     class Meta:

src/pretix/control/middleware.py

@@ -43,7 +43,6 @@ from django.urls import get_script_prefix, resolve, reverse
 from django.utils.encoding import force_str
 from django.utils.translation import gettext as _
 from django_scopes import scope
-from hijack.templatetags.hijack_tags import is_hijacked
 
 from pretix.base.models import Event, Organizer
 from pretix.base.models.auth import SuperuserPermissionSet, User
@@ -183,7 +182,7 @@ class AuditLogMiddleware:
 
     def __call__(self, request):
         if request.path.startswith(get_script_prefix() + 'control') and request.user.is_authenticated:
-            if is_hijacked(request):
+            if getattr(request.user, "is_hijacked", False):
                 hijack_history = request.session.get('hijack_history', False)
                 hijacker = get_object_or_404(User, pk=hijack_history[0])
                 ss = hijacker.get_active_staff_session(request.session.get('hijacker_session'))

src/pretix/control/navigation.py

@@ -343,10 +343,24 @@ def get_global_navigation(request):
             'icon': 'group',
         },
         {
-            'label': _('Order search'),
+            'label': _('Search'),
             'url': reverse('control:search.orders'),
-            'active': 'search.orders' in url.url_name,
+            'active': False,
             'icon': 'search',
+            'children': [
+                {
+                    'label': _('Orders'),
+                    'url': reverse('control:search.orders'),
+                    'active': 'search.orders' in url.url_name,
+                    'icon': 'search',
+                },
+                {
+                    'label': _('Payments'),
+                    'url': reverse('control:search.payments'),
+                    'active': 'search.payments' in url.url_name,
+                    'icon': 'search',
+                },
+            ]
         },
         {
             'label': _('User settings'),

src/pretix/control/templates/pretixcontrol/auth/base.html

@@ -1,6 +1,5 @@
 {% load compress %}
 {% load i18n %}
-{% load hijack_tags %}
 {% load static %}
 <!DOCTYPE html>
 <html{% if rtl %} dir="rtl" class="rtl"{% endif %}>
@@ -39,7 +38,7 @@
             </div>
         {% endfor %}
     {% endif %}
-    {% if request|is_hijacked %}
+    {% if request.user.is_hijacked %}
         <div class="impersonate-warning">
             <span class="fa fa-user-secret"></span>
             {% blocktrans with user=request.user%}You are currently working on behalf of {{ user }}.{% endblocktrans %}

src/pretix/control/templates/pretixcontrol/base.html

@@ -1,7 +1,6 @@
 {% load compress %}
 {% load static %}
 {% load i18n %}
-{% load hijack_tags %}
 {% load statici18n %}
 {% load eventsignal %}
 {% load eventurl %}
@@ -351,7 +350,7 @@
                     </ul>
                 </div>
             {% endif %}
-            {% if request|is_hijacked %}
+            {% if request.user.is_hijacked %}
                 <div class="impersonate-warning">
                     <span class="fa fa-user-secret"></span>
                     {% blocktrans with user=request.user%}You are currently working on behalf of {{ user }}.{% endblocktrans %}

src/pretix/control/templates/pretixcontrol/event/mail.html

@@ -47,6 +47,7 @@
             </fieldset>
             <fieldset>
                 <legend>{% trans "E-mail content" %}</legend>
+                <h4>{% trans "Text" %}</h4>
                 <div class="panel-group" id="questions_group">
                     {% blocktrans asvar title_placed_order %}Placed order{% endblocktrans %}
                     {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="order_placed" title=title_placed_order items="mail_text_order_placed,mail_send_order_placed_attendee,mail_text_order_placed_attendee" exclude="mail_send_order_placed_attendee" %}
@@ -81,6 +82,8 @@
                     {% blocktrans asvar title_require_approval %}Order approval process{% endblocktrans %}
                     {% include "pretixcontrol/event/mail_settings_fragment.html" with pid="ticket_reminder" title=title_require_approval  items="mail_text_order_placed_require_approval,mail_text_order_approved,mail_text_order_approved_free,mail_text_order_denied" %}
                 </div>
+                <h4>{% trans "Attachments" %}</h4>
+                {% bootstrap_field form.mail_attachment_new_order layout="control" %}
             </fieldset>
             <fieldset>
                 <legend>{% trans "SMTP settings" %}</legend>

src/pretix/control/templates/pretixcontrol/event/tax_edit.html

@@ -24,6 +24,7 @@
                     <fieldset>
                         <legend>{% trans "General" %}</legend>
                         {% bootstrap_field form.name layout="control" %}
+                        {% bootstrap_field form.internal_name layout="control" %}
                         {% bootstrap_field form.rate addon_after="%" layout="control" %}
                         {% bootstrap_field form.price_includes_tax layout="control" %}
                     </fieldset>
@@ -39,6 +40,7 @@
                         </div>
                         {% bootstrap_field form.eu_reverse_charge layout="control" %}
                         {% bootstrap_field form.home_country layout="control" %}
+                        {% bootstrap_field form.keep_gross_if_rate_changes layout="control" %}
                         <h3>{% trans "Custom taxation rules" %}</h3>
                         <div class="alert alert-warning">
                             {% blocktrans trimmed %}

src/pretix/control/templates/pretixcontrol/event/tax_index.html

@@ -33,7 +33,7 @@
                     <tr>
                         <td>
                             <strong><a href="{% url "control:event.settings.tax.edit" organizer=request.event.organizer.slug event=request.event.slug rule=tr.id %}">
-                                {{ tr.name }}
+                                {{ tr.internal_name|default:tr.name }}
                             </a></strong>
                         </td>
                         <td>

src/pretix/control/templates/pretixcontrol/item/include_variations.html

@@ -73,6 +73,7 @@
                     {% bootstrap_field form.available_until layout="control" %}
                     {% bootstrap_field form.sales_channels layout="control" %}
                     {% bootstrap_field form.hide_without_voucher layout="control" %}
+                    {% bootstrap_field form.require_approval layout="control" %}
                     {% if form.require_membership %}
                         {% bootstrap_field form.require_membership layout="control" %}
                         <div data-display-dependency="#{{ form.require_membership.id_for_label }}">
@@ -144,6 +145,7 @@
                     {% bootstrap_field formset.empty_form.available_until layout="control" %}
                     {% bootstrap_field formset.empty_form.sales_channels layout="control" %}
                     {% bootstrap_field formset.empty_form.hide_without_voucher layout="control" %}
+                    {% bootstrap_field formset.empty_form.require_approval layout="control" %}
                     {% if formset.empty_form.require_membership %}
                         {% bootstrap_field formset.empty_form.require_membership layout="control" %}
                         <div data-display-dependency="#{{ formset.empty_form.require_membership.id_for_label }}">

src/pretix/control/templates/pretixcontrol/order/change.html

@@ -145,7 +145,12 @@
                                 <strong>{% trans "Tax rule" %}</strong>
                             </div>
                             <div class="col-sm-5">
-                                {{ position.tax_rule.name }} ({{ position.tax_rule.rate }} %)
+                                {% if position.tax_rule.internal_name %}
+                                    {{ position.tax_rule.internal_name }}
+                                {% else %}
+                                    {{ position.tax_rule.name }}
+                                {% endif %}
+                                ({{ position.tax_rule.rate }} %)
                             </div>
                             <div class="col-sm-4 field-container">
                                 {% bootstrap_field position.form.tax_rule layout='inline' %}

src/pretix/control/templates/pretixcontrol/organizers/customer.html

@@ -48,6 +48,10 @@
                             </dd>
                             <dt>{% trans "Name" %}</dt>
                             <dd>{{ customer.name }}</dd>
+                        {% if customer.phone %}
+                            <dt>{% trans "Phone" %}</dt>
+                            <dd>{{ customer.phone }}</dd>
+                        {% endif %}
                             <dt>{% trans "Locale" %}</dt>
                             <dd>{{ display_locale }}</dd>
                             <dt>{% trans "Registration date" %}</dt>

src/pretix/control/templates/pretixcontrol/organizers/customer_edit.html

@@ -2,15 +2,23 @@
 {% load i18n %}
 {% load bootstrap3 %}
 {% block title %}
-    {% blocktrans trimmed with id=customer.identifier %}
-        Customer #{{ id }}
-    {% endblocktrans %}
-{% endblock %}
-{% block inner %}
-    <h1>
+    {% if not customer.id %}
+        {% trans "New customer" %}
+    {% else %}
         {% blocktrans trimmed with id=customer.identifier %}
             Customer #{{ id }}
         {% endblocktrans %}
+    {% endif %}
+{% endblock %}
+{% block inner %}
+    <h1>
+        {% if not customer.id %}
+            {% trans "New customer" %}
+        {% else %}
+            {% blocktrans trimmed with id=customer.identifier %}
+                Customer #{{ id }}
+            {% endblocktrans %}
+        {% endif %}
     </h1>
     <form class="form-horizontal" action="" method="post">
         {% csrf_token %}

src/pretix/control/templates/pretixcontrol/organizers/customers.html

@@ -15,6 +15,8 @@
                     No customer accounts have been created yet.
                 {% endblocktrans %}
             </p>
+            <a href="{% url "control:organizer.customer.create" organizer=request.organizer.slug %}"
+               class="btn btn-primary btn-lg"><i class="fa fa-plus"></i> {% trans "Create a new customer" %}</a>
         </div>
     {% else %}
         <div class="panel panel-default">
@@ -41,6 +43,10 @@
                 </div>
             </form>
         </div>
+        <p>
+            <a href="{% url "control:organizer.customer.create" organizer=request.organizer.slug %}"
+               class="btn btn-default"><i class="fa fa-plus"></i> {% trans "Create a new customer" %}</a>
+        </p>
         <div class="table-responsive">
             <table class="table table-condensed table-hover">
                 <thead>

src/pretix/control/templates/pretixcontrol/organizers/devices.html

@@ -30,7 +30,7 @@
             </div>
             <form class="panel-body filter-form" action="" method="get">
                 <div class="row">
-                    <div class="col-md-6 col-sm-6 col-xs-12">
+                    <div class="col-md-4 col-sm-6 col-xs-12">
                         {% bootstrap_field filter_form.query %}
                     </div>
                     <div class="col-md-3 col-sm-6 col-xs-12">
@@ -39,6 +39,9 @@
                     <div class="col-md-3 col-sm-6 col-xs-12">
                         {% bootstrap_field filter_form.software_brand %}
                     </div>
+                    <div class="col-md-2 col-sm-6 col-xs-12">
+                        {% bootstrap_field filter_form.state %}
+                    </div>
                 </div>
                 <div class="text-right">
                     <button class="btn btn-primary btn-lg" type="submit">

src/pretix/control/templates/pretixcontrol/organizers/edit.html

@@ -82,6 +82,49 @@
                         {% bootstrap_field sform.giftcard_expiry_years layout="control" %}
                         {% bootstrap_field sform.giftcard_length layout="control" %}
                     </fieldset>
+                    <fieldset>
+                        <legend>{% trans "Privacy" %}</legend>
+                        {% bootstrap_field sform.privacy_url layout="control" %}
+                        <div class="alert alert-legal">
+                            <p>
+                                {% blocktrans trimmed %}
+                                    Some jurisdictions, including the European Union, require user consent before you
+                                    are allowed to use cookies or similar technology for analytics, tracking, payment,
+                                    or similar purposes.
+                                {% endblocktrans %}
+                            </p>
+                            <p>
+                                {% blocktrans trimmed %}
+                                    pretix itself only ever sets cookies that are required to provide the service
+                                    requested by the user or to maintain an appropriate level of security. Therefore,
+                                    cookies set by pretix itself do not require consent in all jurisdictions that we
+                                    are aware of.
+                                {% endblocktrans %}
+                            </p>
+                            <p>
+                                {% blocktrans trimmed %}
+                                    Therefore, the settings on this page will <strong>only</strong> have an affect
+                                    if you use <strong>plugins</strong> that require additional cookies
+                                    <strong>and</strong> participate in our cookie consent mechanism.
+                                {% endblocktrans %}
+                            </p>
+                            <p>
+                                <strong>{% blocktrans trimmed %}
+                                    Ultimately, it is your responsibility to make sure you comply with all relevant
+                                    laws. We try to help by providing these settings, but we cannot assume liability
+                                    since we do not know the exact configuration of your pretix usage, the legal details
+                                    in your specific jurisdiction, or the agreements you have with third parties such as
+                                    payment or tracking providers.
+                                {% endblocktrans %}</strong>
+                            </p>
+                        </div>
+                        {% bootstrap_field sform.cookie_consent layout="control" %}
+                        {% bootstrap_field sform.cookie_consent_dialog_title layout="control" %}
+                        {% bootstrap_field sform.cookie_consent_dialog_text layout="control" %}
+                        {% bootstrap_field sform.cookie_consent_dialog_text_secondary layout="control" %}
+                        {% bootstrap_field sform.cookie_consent_dialog_button_yes layout="control" %}
+                        {% bootstrap_field sform.cookie_consent_dialog_button_no layout="control" %}
+                    </fieldset>
                     <fieldset>
                         <legend>{% trans "Invoices" %}</legend>
                         {% bootstrap_field sform.invoice_regenerate_allowed layout="control" %}

src/pretix/control/templates/pretixcontrol/organizers/giftcard.html

@@ -57,6 +57,7 @@
                 </div>
                 <form class="" method="post" action="">
                     {% csrf_token %}
+                    <button type="submit" class="hidden">Add</button> <!-- Required because pressing enter in the text fields will submit the first button -->
                     <table class="panel-body table">
                         <thead>
                         <tr>
@@ -101,7 +102,7 @@
                             </td>
                             <td class="text-right form-inline">
                                 <input type="text" class="form-control input-sm" placeholder="{% trans "Value" %}" name="value">
-                                <button class="btn btn-primary">
+                                <button type="submit" class="btn btn-primary">
                                     <span class="fa fa-plus"></span>
                                 </button>
                             </td>

src/pretix/control/templates/pretixcontrol/search/payments.html

@@ -0,0 +1,164 @@
+{% extends "pretixcontrol/base.html" %}
+{% load i18n %}
+{% load eventurl %}
+{% load urlreplace %}
+{% load money %}
+{% load bootstrap3 %}
+{% block title %}{% trans "Payment search" %}{% endblock %}
+{% block content %}
+    <h1>{% trans "Payment search" %}</h1>
+    <div class="panel panel-default">
+        <div class="panel-heading">
+            <h3 class="panel-title">
+                {% trans "Filter" %}
+            </h3>
+        </div>
+        <form class="panel-body filter-form" action="" method="get">
+            <div class="row">
+                <div class="col-md-12 col-sm-12 col-xs-12">
+                    <div class="row">
+                        <div class="col-md-6 col-sm-12 col-xs-12">
+                            {% bootstrap_field filter_form.query %}
+                        </div>
+                        <div class="col-md-3 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.completed_from %}
+                        </div>
+                        <div class="col-md-3 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.completed_until %}
+                        </div>
+                    </div>
+                    <div class="row">
+                        <div class="col-md-3 col-sm-3 col-xs-4">
+                            {% bootstrap_field filter_form.amount %}
+                        </div>
+                        <div class="col-md-5 col-sm-5 col-xs-8">
+                            {% bootstrap_field filter_form.provider %}
+                        </div>
+                        <div class="col-md-4 col-sm-4 col-xs-12">
+                            {% bootstrap_field filter_form.state %}
+                        </div>
+                    </div>
+                </div>
+                <div class="col-md-12 col-sm-12 col-xs-12">
+                    <div class="row">
+                        <div class="col-md-6 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.organizer %}
+                        </div>
+                        <div class="col-md-6 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.event %}
+                        </div>
+                    </div>
+                    <div class="row">
+                        <div class="col-md-3 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.created_from %}
+                        </div>
+                        <div class="col-md-3 col-sm-6 col-xs-12">
+                            {% bootstrap_field filter_form.created_until %}
+                        </div>
+                    </div>
+                </div>
+            </div>
+            <div class="text-right flip">
+                <button class="btn btn-primary btn-lg" type="submit">
+                    <span class="fa fa-filter"></span>
+                    {% trans "Filter" %}
+                </button>
+            </div>
+        </form>
+    </div>
+
+    <div class="table-responsive">
+        <table class="table table-condensed table-hover">
+            <thead>
+            <tr>
+                <th>
+                    {% trans "Payment ID" %}
+                </th>
+                <th>
+                    {% trans "Order" %}
+                    <a href="?{% url_replace request 'ordering' '-order' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'order' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+                <th>
+                    {% trans "Start date" %}
+                    <a href="?{% url_replace request 'ordering' '-created' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'created' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+                <th>
+                    {% trans "Confirmation date" %}
+                    <a href="?{% url_replace request 'ordering' '-payment_date' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'payment_date' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+                <th>
+                    {% trans "Payment provider" %}
+                    <a href="?{% url_replace request 'ordering' '-provider' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'provider' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+                <th class="text-right flip">
+                    {% trans "Amount" %}
+                    <a href="?{% url_replace request 'ordering' '-amount' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'amount' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+                <th class="text-right flip">
+                    {% trans "Status" %}
+                    <a href="?{% url_replace request 'ordering' '-state' %}"><i class="fa fa-caret-down"></i></a>
+                    <a href="?{% url_replace request 'ordering' 'state' %}"><i class="fa fa-caret-up"></i></a>
+                </th>
+            </tr>
+            </thead>
+            <tbody>
+            {% for p in payments %}
+                <tr>
+                    <td>{{ p.full_id }}</td>
+                    <td>
+                        <strong>
+                            <a href="{% url "control:event.order" event=p.order.event.slug organizer=p.order.event.organizer.slug code=p.order.code %}">
+                                {{ p.order.full_code }}</a>
+                        </strong>
+                        {% if p.order.testmode %}
+                            <span class="label label-warning">{% trans "TEST MODE" %}</span>
+                        {% endif %}
+                    </td>
+                    <td>
+                        {% if p.migrated %}
+                            <span class="label label-default" data-toggle="tooltip"
+                            title="{% trans "This payment was created with an older version of pretix, therefore accurate data might not be available." %}">
+                                {% trans "MIGRATED" %}
+                            </span>
+                        {% else %}
+                            {{ p.created|date:"SHORT_DATETIME_FORMAT" }}
+                        {% endif %}
+                    </td>
+                    <td>{{ p.payment_date|date:"SHORT_DATETIME_FORMAT" }}</td>
+                    <td>{{ p.payment_provider.verbose_name }}</td>
+                    <td class="text-right flip">{{ p.amount|money:p.order.event.currency }}</td>
+                    <td class="text-right flip">
+                        <span class="label label-{% if p.state == "created" or p.state == "pending" %}warning{% elif p.state == "confirmed" %}success{% else %}danger{% endif %}">
+                            {{ p.get_state_display }}
+                        </span>
+                    </td>
+                </tr>
+            {% if staff_session %}
+                <tr>
+                    <td colspan="1"></td>
+                    <td colspan="6">
+                        <a href="" class="btn btn-default btn-xs" data-expandpayment data-id="{{ p.pk }}">
+                            <span class="fa-eye fa fa-fw"></span>
+                            {% trans "Inspect" %}
+                        </a>
+                    </td>
+                </tr>
+            {% endif %}
+            {% empty %}
+                <tr>
+                    <td colspan="7" class="text-center"><em>
+                        {% trans "We couldn't find any payments that you have access to and that match your search query." %}
+                    </em></td>
+                </tr>
+            {% endfor %}
+            </tbody>
+        </table>
+    </div>
+
+    {% include "pretixcontrol/pagination_huge.html" %}
+{% endblock %}

src/pretix/control/urls.py

@@ -133,6 +133,8 @@ urlpatterns = [
             name='organizer.membershiptype.delete'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/customers$', organizer.CustomerListView.as_view(), name='organizer.customers'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/customers/select2$', typeahead.customer_select2, name='organizer.customers.select2'),
+    re_path(r'^organizer/(?P<organizer>[^/]+)/customer/add$',
+            organizer.CustomerCreateView.as_view(), name='organizer.customer.create'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/customer/(?P<customer>[^/]+)/$',
             organizer.CustomerDetailView.as_view(), name='organizer.customer'),
     re_path(r'^organizer/(?P<organizer>[^/]+)/customer/(?P<customer>[^/]+)/edit$',
@@ -192,6 +194,7 @@ urlpatterns = [
     re_path(r'^events/typeahead/$', typeahead.event_list, name='events.typeahead'),
     re_path(r'^events/typeahead/meta/$', typeahead.meta_values, name='events.meta.typeahead'),
     re_path(r'^search/orders/$', search.OrderSearch.as_view(), name='search.orders'),
+    re_path(r'^search/payments/$', search.PaymentSearch.as_view(), name='search.payments'),
     re_path(r'^event/(?P<organizer>[^/]+)/(?P<event>[^/]+)/', include([
         re_path(r'^$', dashboards.event_index, name='event.index'),
         re_path(r'^widgets.json$', dashboards.event_index_widgets_lazy, name='event.index.widgets'),

src/pretix/control/views/event.py

@@ -65,7 +65,9 @@ from i18nfield.utils import I18nJSONEncoder
 from pytz import timezone
 
 from pretix.base.channels import get_all_sales_channels
-from pretix.base.email import get_available_placeholders
+from pretix.base.email import (
+    get_available_placeholders, test_custom_smtp_backend,
+)
 from pretix.base.models import Event, LogEntry, Order, TaxRule, Voucher
 from pretix.base.models.event import EventMetaValue
 from pretix.base.services import tickets
@@ -641,7 +643,7 @@ class MailSettings(EventSettingsViewMixin, EventSettingsFormView):
             if request.POST.get('test', '0').strip() == '1':
                 backend = self.request.event.get_mail_backend(force_custom=True, timeout=10)
                 try:
-                    backend.test(self.request.event.settings.mail_from)
+                    test_custom_smtp_backend(backend, self.request.event.settings.mail_from)
                 except Exception as e:
                     messages.warning(self.request, _('An error occurred while contacting the SMTP server: %s') % str(e))
                 else:

src/pretix/control/views/orders.py

@@ -896,6 +896,11 @@ class OrderRefundView(OrderView):
                             if self.request.POST.get('manual_state') == 'done'
                             else OrderRefund.REFUND_STATE_CREATED
                         ),
+                        execution_date=(
+                            now()
+                            if self.request.POST.get('manual_state') == 'done'
+                            else None
+                        ),
                         amount=manual_value,
                         comment=comment,
                         provider='manual'

src/pretix/control/views/organizer.py

@@ -64,6 +64,7 @@ from django.views.generic import (
 from pretix.api.models import WebHook
 from pretix.base.auth import get_auth_backends
 from pretix.base.channels import get_all_sales_channels
+from pretix.base.email import test_custom_smtp_backend
 from pretix.base.i18n import language
 from pretix.base.models import (
     CachedFile, Customer, Device, Gate, GiftCard, Invoice, LogEntry,
@@ -89,8 +90,8 @@ from pretix.control.forms.filter import (
 )
 from pretix.control.forms.orders import ExporterForm
 from pretix.control.forms.organizer import (
-    CustomerUpdateForm, DeviceForm, EventMetaPropertyForm, GateForm,
-    GiftCardCreateForm, GiftCardUpdateForm, MailSettingsForm,
+    CustomerCreateForm, CustomerUpdateForm, DeviceForm, EventMetaPropertyForm,
+    GateForm, GiftCardCreateForm, GiftCardUpdateForm, MailSettingsForm,
     MembershipTypeForm, MembershipUpdateForm, OrganizerDeleteForm,
     OrganizerForm, OrganizerSettingsForm, OrganizerUpdateForm, TeamForm,
     WebHookForm,
@@ -265,7 +266,7 @@ class OrganizerMailSettings(OrganizerSettingsFormView):
             if request.POST.get('test', '0').strip() == '1':
                 backend = self.request.organizer.get_mail_backend(force_custom=True, timeout=10)
                 try:
-                    backend.test(self.request.organizer.settings.mail_from)
+                    test_custom_smtp_backend(backend, self.request.organizer.settings.mail_from)
                 except Exception as e:
                     messages.warning(self.request, _('An error occurred while contacting the SMTP server: %s') % str(e))
                 else:
@@ -489,6 +490,7 @@ class OrganizerCreate(CreateView):
             organizer=form.instance, name=_('Administrators'),
             all_events=True, can_create_events=True, can_change_teams=True, can_manage_gift_cards=True,
             can_change_organizer_settings=True, can_change_event_settings=True, can_change_items=True,
+            can_manage_customers=True,
             can_view_orders=True, can_change_orders=True, can_view_vouchers=True, can_change_vouchers=True
         )
         t.members.add(self.request.user)
@@ -1194,6 +1196,10 @@ class GiftCardDetailView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMi
                         'retry': True,
                     })
                 )
+                t.order.log_action('pretix.event.order.payment.started', {
+                    'local_id': r.local_id,
+                    'provider': r.provider
+                }, user=request.user)
                 try:
                     r.payment_provider.execute_payment(request, r)
                 except PaymentException as e:
@@ -1863,6 +1869,35 @@ class CustomerDetailView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMi
         return ctx
 
 
+class CustomerCreateView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMixin, CreateView):
+    template_name = 'pretixcontrol/organizers/customer_edit.html'
+    permission = 'can_manage_customers'
+    context_object_name = 'customer'
+    form_class = CustomerCreateForm
+
+    def get_form_kwargs(self):
+        ctx = super().get_form_kwargs()
+        c = Customer(organizer=self.request.organizer)
+        c.assign_identifier()
+        ctx['instance'] = c
+        return ctx
+
+    def form_valid(self, form):
+        r = super().form_valid(form)
+        form.instance.log_action('pretix.customer.created', user=self.request.user, data={
+            k: getattr(form.instance, k)
+            for k in form.changed_data
+        })
+        messages.success(self.request, _('Your changes have been saved.'))
+        return r
+
+    def get_success_url(self):
+        return reverse('control:organizer.customer', kwargs={
+            'organizer': self.request.organizer.slug,
+            'customer': self.object.identifier,
+        })
+
+
 class CustomerUpdateView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMixin, UpdateView):
     template_name = 'pretixcontrol/organizers/customer_edit.html'
     permission = 'can_manage_customers'

src/pretix/control/views/search.py

@@ -25,8 +25,10 @@ from django.utils.functional import cached_property
 from django.views.generic import ListView
 
 from pretix.base.models import Order, OrderPosition
-from pretix.base.models.orders import CancellationRequest
-from pretix.control.forms.filter import OrderSearchFilterForm
+from pretix.base.models.orders import CancellationRequest, OrderPayment
+from pretix.control.forms.filter import (
+    OrderPaymentSearchFilterForm, OrderSearchFilterForm,
+)
 from pretix.control.views import LargeResultSetPaginator, PaginationMixin
 
 
@@ -136,3 +138,73 @@ class OrderSearch(PaginationMixin, ListView):
         ).prefetch_related(
             'event', 'event__organizer'
         ).select_related('invoice_address')
+
+
+class PaymentSearch(PaginationMixin, ListView):
+    model = OrderPayment
+    paginator_class = LargeResultSetPaginator
+    context_object_name = 'payments'
+    template_name = 'pretixcontrol/search/payments.html'
+
+    @cached_property
+    def filter_form(self):
+        return OrderPaymentSearchFilterForm(data=self.request.GET, request=self.request)
+
+    def get_context_data(self, **kwargs):
+        ctx = super().get_context_data()
+        ctx['filter_form'] = self.filter_form
+        return ctx
+
+    def get_queryset(self):
+        qs = OrderPayment.objects.using(settings.DATABASE_REPLICA)
+
+        if not self.request.user.has_active_staff_session(self.request.session.session_key):
+            qs = qs.filter(
+                Q(order__event_id__in=self.request.user.get_events_with_permission('can_view_orders').values_list('id', flat=True))
+            )
+
+        if self.filter_form.is_valid():
+            qs = self.filter_form.filter_qs(qs)
+
+            if self.filter_form.cleaned_data.get('query'):
+                """
+                We need to work around a bug in PostgreSQL's (and likely MySQL's) query plan optimizer here.
+                The database lacks statistical data to predict how common our search filter is and therefore
+                assumes that it is cheaper to first ORDER *all* orders in the system (since we got an index on
+                datetime), then filter out with a full scan until OFFSET/LIMIT condition is fulfilled. If we
+                look for something rare (such as an email address used once within hundreds of thousands of
+                orders, this ends up to be pathologically slow.
+
+                For some search queries on pretix.eu, we see search times of >30s, just due to the ORDER BY and
+                LIMIT clause. Without them. the query runs in roughly 0.6s. This heuristical approach tries to
+                detect these cases and rewrite the query as a nested subquery that strongly suggests sorting
+                before filtering. However, since even that fails in some cases because PostgreSQL thinks it knows
+                better, we literally force it by evaluating the subquery explicitly. We only do this for n<=200,
+                to avoid memory leaks – and problems with maximum parameter count on SQLite. In cases where the
+                search query yields lots of results, this will actually be slower since it requires two queries,
+                sorry.
+
+                Phew.
+                """
+
+                page = self.kwargs.get(self.page_kwarg) or self.request.GET.get(self.page_kwarg) or 1
+                limit = self.get_paginate_by(None)
+                try:
+                    offset = (int(page) - 1) * limit
+                except ValueError:
+                    offset = 0
+                resultids = list(qs.order_by().values_list('id', flat=True)[:201])
+                if len(resultids) <= 200 and len(resultids) <= offset + limit:
+                    qs = OrderPayment.objects.using(settings.DATABASE_REPLICA).filter(
+                        id__in=resultids
+                    )
+
+        """
+        We use prefetch_related here instead of select_related for a reason, even though select_related
+        would be the common choice for a foreign key and doesn't require an additional database query.
+        The problem is, that if our results contain the same event 25 times, select_related will create
+        25 Django  objects which will all try to pull their ownsettings cache to show the event properly,
+        leading to lots of unnecessary queries. Due to the way prefetch_related works differently, it
+        will only create one shared Django object.
+        """
+        return qs.prefetch_related('order', 'order__event', 'order__event__organizer')

src/pretix/control/views/users.py

@@ -20,9 +20,13 @@
 # <https://www.gnu.org/licenses/>.
 #
 import json
+from contextlib import contextmanager
 
 from django.conf import settings
 from django.contrib import messages
+from django.contrib.auth import (
+    BACKEND_SESSION_KEY, get_user_model, load_backend, login,
+)
 from django.contrib.auth.mixins import LoginRequiredMixin
 from django.shortcuts import get_object_or_404, redirect
 from django.urls import reverse
@@ -30,7 +34,7 @@ from django.utils.functional import cached_property
 from django.utils.translation import gettext_lazy as _
 from django.views import View
 from django.views.generic import ListView, TemplateView
-from hijack.helpers import login_user, release_hijack
+from hijack import signals
 
 from pretix.base.auth import get_auth_backends
 from pretix.base.models import User
@@ -42,6 +46,25 @@ from pretix.control.views import CreateView, UpdateView
 from pretix.control.views.user import RecentAuthenticationRequiredMixin
 
 
+def get_used_backend(request):
+    # vendored from hijack/views.py
+    backend_str = request.session[BACKEND_SESSION_KEY]
+    backend = load_backend(backend_str)
+    return backend
+
+
+@contextmanager
+def keep_session_age(session):
+    # vendored from hijack/views.py
+    try:
+        session_expiry = session["_session_expiry"]
+    except KeyError:
+        yield
+    else:
+        yield
+        session["_session_expiry"] = session_expiry
+
+
 class UserListView(AdministratorPermissionRequiredMixin, ListView):
     template_name = 'pretixcontrol/users/index.html'
     context_object_name = 'users'
@@ -171,7 +194,28 @@ class UserImpersonateView(AdministratorPermissionRequiredMixin, RecentAuthentica
                                          'other_email': self.object.email
                                      })
         oldkey = request.session.session_key
-        login_user(request, self.object)
+
+        hijacker = request.user
+        hijacked = self.object
+
+        hijack_history = request.session.get("hijack_history", [])
+        hijack_history.append(request.user._meta.pk.value_to_string(hijacker))
+
+        backend = get_used_backend(request)
+        backend = f"{backend.__module__}.{backend.__class__.__name__}"
+
+        with signals.no_update_last_login(), keep_session_age(request.session):
+            login(request, hijacked, backend=backend)
+
+        request.session["hijack_history"] = hijack_history
+
+        signals.hijack_started.send(
+            sender=None,
+            request=request,
+            hijacker=hijacker,
+            hijacked=hijacked,
+        )
+
         request.session['hijacker_session'] = oldkey
         return redirect(reverse('control:index'))
 
@@ -180,8 +224,26 @@ class UserImpersonateStopView(LoginRequiredMixin, View):
 
     def post(self, request, *args, **kwargs):
         impersonated = request.user
+
         hijs = request.session['hijacker_session']
-        release_hijack(request)
+        hijack_history = request.session.get("hijack_history", [])
+        hijacked = request.user
+        user_pk = hijack_history.pop()
+        hijacker = get_object_or_404(get_user_model(), pk=user_pk)
+        backend = get_used_backend(request)
+        backend = f"{backend.__module__}.{backend.__class__.__name__}"
+        with signals.no_update_last_login(), keep_session_age(request.session):
+            login(request, hijacker, backend=backend)
+
+        request.session["hijack_history"] = hijack_history
+
+        signals.hijack_ended.send(
+            sender=None,
+            request=request,
+            hijacker=hijacker,
+            hijacked=hijacked,
+        )
+
         ss = request.user.get_active_staff_session(hijs)
         if ss:
             request.session.save()

src/pretix/helpers/apps.py

@@ -25,3 +25,7 @@ from django.apps import AppConfig
 class PretixHelpersConfig(AppConfig):
     name = 'pretix.helpers'
     label = 'pretixhelpers'
+
+    def ready(self):
+        from .monkeypatching import monkeypatch_all_at_ready
+        monkeypatch_all_at_ready()

src/pretix/helpers/daterange.py

@@ -32,10 +32,11 @@
 # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations under the License.
 
-from django.template.defaultfilters import date as _date
 from django.utils.html import format_html
 from django.utils.translation import get_language, gettext_lazy as _
 
+from pretix.helpers.templatetags.date_fast import date_fast as _date
+
 
 def daterange(df, dt, as_html=False):
     lng = get_language()

src/pretix/helpers/formats/en/formats.py

@@ -39,3 +39,4 @@ SHORT_DATETIME_FORMAT = 'Y-m-d H:i'
 TIME_FORMAT = 'H:i'
 WEEK_FORMAT = '\\W W, o'
 WEEK_DAY_FORMAT = 'D, M jS'
+SHORT_MONTH_DAY_FORMAT = 'd.m.'

src/pretix/helpers/formats/en_US/formats.py

@@ -26,6 +26,7 @@ SHORT_DATETIME_FORMAT = 'm/d/Y P'
 TIME_FORMAT = 'P'
 WEEK_FORMAT = '\\W W, o'
 WEEK_DAY_FORMAT = 'D, M jS'
+SHORT_MONTH_DAY_FORMAT = 'm/d'
 
 DATE_INPUT_FORMATS = [
     '%m/%d/%Y',

src/pretix/helpers/formats/fr/__init__.py

@@ -0,0 +1,21 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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/>.
+#

src/pretix/helpers/formats/fr/formats.py

@@ -0,0 +1,25 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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/>.
+#
+
+# Date according to https://docs.djangoproject.com/en/dev/ref/templates/builtins/#date
+WEEK_FORMAT = '\\S W/o'
+WEEK_DAY_FORMAT = 'D, j.n.'

src/pretix/helpers/hierarkey.py

@@ -0,0 +1,40 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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/>.
+#
+
+
+def clean_filename(fname):
+    """
+    hierarkey.forms.SettingsForm appends a random value to every filename. However, it keeps the
+    extension around "twice". This leads to:
+
+    "Terms.pdf" → "Terms.pdf.OybgvyAH.pdf"
+
+    In pretix Hosted, our storage layer also adds a hash of the file to the filename, so we have
+
+    "Terms.pdf" → "Terms.pdf.OybgvyAH.22c0583727d5bc.pdf"
+
+    This function reverses this operation:
+
+    "Terms.pdf.OybgvyAH.22c0583727d5bc.pdf" → "Terms.pdf"
+    """
+    ext = '.' + fname.split('.')[-1]
+    return fname.rsplit(ext + ".", 1)[0] + ext

src/pretix/helpers/monkeypatching.py

@@ -0,0 +1,56 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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 datetime import datetime
+
+
+def monkeypatch_vobject_performance():
+    """
+    This works around a performance issue in the unmaintained vobject library which calls
+    a very expensive function for every event in a calendar. Since the slow function is
+    mostly used to compare timezones to UTC, not to arbitrary other timezones, we can
+    add a few early-out optimizations.
+    """
+
+    from vobject import icalendar
+
+    old_tzinfo_eq = icalendar.tzinfo_eq
+    test_date = datetime(2000, 1, 1)
+
+    def new_tzinfo_eq(tzinfo1, tzinfo2, *args, **kwargs):
+        if tzinfo1 is None:
+            return tzinfo2 is None
+        if tzinfo2 is None:
+            return tzinfo1 is None
+
+        n1 = tzinfo1.tzname(test_date)
+        n2 = tzinfo2.tzname(test_date)
+        if n1 == "UTC" and n2 == "UTC":
+            return True
+        if n1 == "UTC" or n2 == "UTC":
+            return False
+        return old_tzinfo_eq(tzinfo1, tzinfo2, *args, **kwargs)
+
+    icalendar.tzinfo_eq = new_tzinfo_eq
+
+
+def monkeypatch_all_at_ready():
+    monkeypatch_vobject_performance()

src/pretix/helpers/templatetags/date_fast.py

@@ -0,0 +1,61 @@
+#
+# This file is part of pretix (Community Edition).
+#
+# Copyright (C) 2014-2020 Raphael Michel and contributors
+# Copyright (C) 2020-2021 rami.io GmbH and contributors
+#
+# This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General
+# Public License as published by the Free Software Foundation in version 3 of the License.
+#
+# ADDITIONAL TERMS APPLY: Pursuant to Section 7 of the GNU Affero General Public License, additional terms are
+# applicable granting you additional permissions and placing additional restrictions on your usage of this software.
+# Please refer to the pretix LICENSE file to obtain the full terms applicable to this work. If you did not receive
+# this file, see <https://pretix.eu/about/en/license>.
+#
+# This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied
+# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more
+# details.
+#
+# 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 functools
+
+from django import template
+from django.utils import dateformat
+from django.utils.formats import get_format
+from django.utils.translation import get_language
+
+register = template.Library()
+
+
+@functools.lru_cache(maxsize=32)
+def _get_format(format_type, lang):
+    return get_format(format_type, lang)
+
+
+@register.filter(expects_localtime=True, is_safe=False)
+def date_fast(value, arg=None):
+    """
+    Slightly quicker version of |date if the filter is called a lot. The speedup is achieved through
+    LRU caching for formats.
+
+    Django's built-in |date filter has a caching mechanism if you call it with a named format,
+    i.e. ``|date_fast:"SHORT_DATE_FORMAT"`` will only be ~6% faster than ``|date:"SHORT_DATE_FORMAT"``.
+
+    However, Django's built-in caching has a flaw with unnamed formats, therefore ``|date_fast:"Y-m-d"``
+    will be ~12% faster than ``|date:"Y-m-d"``.
+    """
+    if value in (None, ''):
+        return ''
+
+    lang = get_language()
+    format = _get_format(arg, lang)
+
+    try:
+        return dateformat.format(value, format)
+    except AttributeError:
+        try:
+            return format(value, arg)
+        except AttributeError:
+            return ''

src/pretix/helpers/thumb.py

@@ -173,7 +173,7 @@ def create_thumbnail(sourcename, size):
 
     image = resize_image(image, size)
 
-    if source.name.endswith('.jpg') or source.name.endswith('.jpeg'):
+    if source.name.lower().endswith('.jpg') or source.name.lower().endswith('.jpeg'):
         # Yields better file sizes for photos
         target_ext = 'jpeg'
         quality = 95
@@ -184,6 +184,8 @@ def create_thumbnail(sourcename, size):
     checksum = hashlib.md5(image.tobytes()).hexdigest()
     name = checksum + '.' + size.replace('^', 'c') + '.' + target_ext
     buffer = BytesIO()
+    if image.mode == "P" and source.name.lower().endswith('.png'):
+        image = image.convert('RGBA')
     if image.mode not in ("1", "L", "RGB", "RGBA"):
         image = image.convert('RGB')
     image.save(fp=buffer, format=target_ext.upper(), quality=quality)

src/pretix/locale/ar/LC_MESSAGES/djangojs.po

@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-11-29 08:28+0000\n"
+"POT-Creation-Date: 2022-01-14 14:33+0000\n"
 "PO-Revision-Date: 2021-09-15 11:22+0000\n"
 "Last-Translator: Mohamed Tawfiq <mtawfiq@wafyapp.com>\n"
 "Language-Team: Arabic <https://translate.pretix.eu/projects/pretix/pretix-js/"
@@ -535,20 +535,20 @@ msgstr "ستسترد %(currency)%(amount)"
 msgid "Please enter the amount the organizer can keep."
 msgstr "الرجاء إدخال المبلغ الذي يمكن للمنظم الاحتفاظ به."
 
-#: pretix/static/pretixpresale/js/ui/main.js:339
+#: pretix/static/pretixpresale/js/ui/main.js:361
 msgid "Please enter a quantity for one of the ticket types."
 msgstr "الرجاء إدخال عدد لأحد أنواع التذاكر."
 
-#: pretix/static/pretixpresale/js/ui/main.js:375
+#: pretix/static/pretixpresale/js/ui/main.js:397
 msgid "required"
 msgstr "مطلوب"
 
-#: pretix/static/pretixpresale/js/ui/main.js:478
-#: pretix/static/pretixpresale/js/ui/main.js:497
+#: pretix/static/pretixpresale/js/ui/main.js:500
+#: pretix/static/pretixpresale/js/ui/main.js:519
 msgid "Time zone:"
 msgstr "المنطقة الزمنية:"
 
-#: pretix/static/pretixpresale/js/ui/main.js:488
+#: pretix/static/pretixpresale/js/ui/main.js:510
 msgid "Your local time:"
 msgstr "التوقيت المحلي:"
 

src/pretix/locale/ca/LC_MESSAGES/djangojs.po

@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-11-29 08:28+0000\n"
+"POT-Creation-Date: 2022-01-14 14:33+0000\n"
 "PO-Revision-Date: 2020-12-19 07:00+0000\n"
 "Last-Translator: albert <albert.serra.monner@gmail.com>\n"
 "Language-Team: Catalan <https://translate.pretix.eu/projects/pretix/pretix-"
@@ -510,22 +510,22 @@ msgstr ""
 msgid "Please enter the amount the organizer can keep."
 msgstr ""
 
-#: pretix/static/pretixpresale/js/ui/main.js:339
+#: pretix/static/pretixpresale/js/ui/main.js:361
 msgid "Please enter a quantity for one of the ticket types."
 msgstr ""
 
-#: pretix/static/pretixpresale/js/ui/main.js:375
+#: pretix/static/pretixpresale/js/ui/main.js:397
 #, fuzzy
 #| msgid "Cart expired"
 msgid "required"
 msgstr "Cistella expirada"
 
-#: pretix/static/pretixpresale/js/ui/main.js:478
-#: pretix/static/pretixpresale/js/ui/main.js:497
+#: pretix/static/pretixpresale/js/ui/main.js:500
+#: pretix/static/pretixpresale/js/ui/main.js:519
 msgid "Time zone:"
 msgstr ""
 
-#: pretix/static/pretixpresale/js/ui/main.js:488
+#: pretix/static/pretixpresale/js/ui/main.js:510
 msgid "Your local time:"
 msgstr ""
 

src/pretix/locale/cs/LC_MESSAGES/djangojs.po

@@ -7,9 +7,9 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-11-29 08:28+0000\n"
-"PO-Revision-Date: 2021-10-18 19:00+0000\n"
-"Last-Translator: Tony Pavlik <kontakt@playton.cz>\n"
+"POT-Creation-Date: 2022-01-14 14:33+0000\n"
+"PO-Revision-Date: 2021-12-06 23:00+0000\n"
+"Last-Translator: Ondřej Sokol <osokol@treesoft.cz>\n"
 "Language-Team: Czech <https://translate.pretix.eu/projects/pretix/pretix-js/"
 "cs/>\n"
 "Language: cs\n"
@@ -184,7 +184,7 @@ msgstr "Objednávka zrušena"
 
 #: pretix/plugins/webcheckin/static/pretixplugins/webcheckin/main.js:62
 msgid "Checked-in Tickets"
-msgstr "Odbavené vstupenky"
+msgstr "Vyřízené vstupenky"
 
 #: pretix/plugins/webcheckin/static/pretixplugins/webcheckin/main.js:63
 msgid "Valid Tickets"
@@ -192,7 +192,7 @@ msgstr "Platné vstupenky"
 
 #: pretix/plugins/webcheckin/static/pretixplugins/webcheckin/main.js:64
 msgid "Currently inside"
-msgstr "Právě uvnitř"
+msgstr "Aktuálně uvnitř"
 
 #: pretix/static/lightbox/js/lightbox.js:96
 msgid "close"
@@ -439,7 +439,7 @@ msgstr ""
 
 #: pretix/static/pretixcontrol/js/ui/main.js:417
 msgid "All"
-msgstr "Všechný"
+msgstr "Všechny"
 
 #: pretix/static/pretixcontrol/js/ui/main.js:418
 msgid "None"
@@ -528,20 +528,20 @@ msgstr "Dostanete %(currency)s %(amount)s zpět"
 msgid "Please enter the amount the organizer can keep."
 msgstr "Zadejte částku, kterou si organizátor může ponechat."
 
-#: pretix/static/pretixpresale/js/ui/main.js:339
+#: pretix/static/pretixpresale/js/ui/main.js:361
 msgid "Please enter a quantity for one of the ticket types."
 msgstr "Zadejte prosím množství pro jeden z typů vstupenek."
 
-#: pretix/static/pretixpresale/js/ui/main.js:375
+#: pretix/static/pretixpresale/js/ui/main.js:397
 msgid "required"
 msgstr "povinný"
 
-#: pretix/static/pretixpresale/js/ui/main.js:478
-#: pretix/static/pretixpresale/js/ui/main.js:497
+#: pretix/static/pretixpresale/js/ui/main.js:500
+#: pretix/static/pretixpresale/js/ui/main.js:519
 msgid "Time zone:"
 msgstr "Časové pásmo:"
 
-#: pretix/static/pretixpresale/js/ui/main.js:488
+#: pretix/static/pretixpresale/js/ui/main.js:510
 msgid "Your local time:"
 msgstr "Místní čas:"
 
@@ -683,7 +683,7 @@ msgstr "Uplatnit"
 #: pretix/static/pretixpresale/js/widget/widget.js:44
 msgctxt "widget"
 msgid "Voucher code"
-msgstr "Kód voucheru"
+msgstr "Kód poukázky"
 
 #: pretix/static/pretixpresale/js/widget/widget.js:45
 msgctxt "widget"

src/pretix/locale/da/LC_MESSAGES/djangojs.po

@@ -6,7 +6,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-11-29 08:28+0000\n"
+"POT-Creation-Date: 2022-01-14 14:33+0000\n"
 "PO-Revision-Date: 2021-09-13 09:48+0000\n"
 "Last-Translator: Mie Frydensbjerg <mif@aarhus.dk>\n"
 "Language-Team: Danish <https://translate.pretix.eu/projects/pretix/pretix-js/"
@@ -563,22 +563,22 @@ msgstr "fra %(currency)s %(price)s"
 msgid "Please enter the amount the organizer can keep."
 msgstr ""
 
-#: pretix/static/pretixpresale/js/ui/main.js:339
+#: pretix/static/pretixpresale/js/ui/main.js:361
 msgid "Please enter a quantity for one of the ticket types."
 msgstr ""
 
-#: pretix/static/pretixpresale/js/ui/main.js:375
+#: pretix/static/pretixpresale/js/ui/main.js:397
 #, fuzzy
 #| msgid "Cart expired"
 msgid "required"
 msgstr "Kurv udløbet"
 
-#: pretix/static/pretixpresale/js/ui/main.js:478
-#: pretix/static/pretixpresale/js/ui/main.js:497
+#: pretix/static/pretixpresale/js/ui/main.js:500
+#: pretix/static/pretixpresale/js/ui/main.js:519
 msgid "Time zone:"
 msgstr "Tidszone:"
 
-#: pretix/static/pretixpresale/js/ui/main.js:488
+#: pretix/static/pretixpresale/js/ui/main.js:510
 msgid "Your local time:"
 msgstr "Din lokaltid:"
 

src/pretix/locale/de/LC_MESSAGES/djangojs.po

@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: \n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2021-11-29 08:28+0000\n"
+"POT-Creation-Date: 2022-01-14 14:33+0000\n"
 "PO-Revision-Date: 2021-10-25 15:40+0000\n"
 "Last-Translator: Raphael Michel <michel@rami.io>\n"
 "Language-Team: German <https://translate.pretix.eu/projects/pretix/pretix-js/"
@@ -532,20 +532,20 @@ msgstr "Sie erhalten %(currency)s %(amount)s zurück"
 msgid "Please enter the amount the organizer can keep."
 msgstr "Bitte geben Sie den Betrag ein, den der Veranstalter einbehalten darf."
 
-#: pretix/static/pretixpresale/js/ui/main.js:339
+#: pretix/static/pretixpresale/js/ui/main.js:361
 msgid "Please enter a quantity for one of the ticket types."
 msgstr "Bitte tragen Sie eine Menge für eines der Produkte ein."
 
-#: pretix/static/pretixpresale/js/ui/main.js:375
+#: pretix/static/pretixpresale/js/ui/main.js:397
 msgid "required"
 msgstr "verpflichtend"
 
-#: pretix/static/pretixpresale/js/ui/main.js:478
-#: pretix/static/pretixpresale/js/ui/main.js:497
+#: pretix/static/pretixpresale/js/ui/main.js:500
+#: pretix/static/pretixpresale/js/ui/main.js:519
 msgid "Time zone:"
 msgstr "Zeitzone:"
 
-#: pretix/static/pretixpresale/js/ui/main.js:488
+#: pretix/static/pretixpresale/js/ui/main.js:510
 msgid "Your local time:"
 msgstr "Deine lokale Zeit:"
 

src/pretix/locale/de/wordlist.txt

@@ -55,6 +55,7 @@ Chrome
 Choice
 CONFIRM
 Connect
+Consent
 Copyleft
 Cronjob
 csv
@@ -253,6 +254,7 @@ Toolbar
 TODO
 TOTP
 Trace
+Tracking
 Turnover
 txt
 überbuchen