Fix Checkin logdisplay for deleted events

- Fix link in pretix.event.order.changed.split
- Add link to existing order in pretix.event.order.changed.split_from
- Fix display of checkin entries without datetime in data
- Add additional info for admins (action type, linked content object)

.github/workflows/build.yml

@@ -38,7 +38,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install system dependencies
-        run: sudo apt update && sudo apt install gettext unzip
+        run: sudo apt update && sudo apt install -y gettext unzip
       - name: Install Python dependencies
         run: pip3 install -U setuptools build pip check-manifest
       - name: Run check-manifest

.github/workflows/docs.yml

@@ -37,7 +37,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install system packages
-        run: sudo apt update && sudo apt install enchant-2 hunspell aspell-en
+        run: sudo apt update && sudo apt install -y enchant-2 hunspell aspell-en
       - name: Install Dependencies
         run: pip3 install -Ur requirements.txt
         working-directory: ./doc

.github/workflows/strings.yml

@@ -35,9 +35,9 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install system packages
-        run: sudo apt update && sudo apt install gettext
+        run: sudo apt update && sudo apt -y install gettext
       - name: Install Dependencies
-        run: pip3 install -e ".[dev]"
+        run: pip3 install uv && uv pip install --system -e ".[dev]"
       - name: Compile messages
         run: python manage.py compilemessages
         working-directory: ./src
@@ -62,7 +62,7 @@ jobs:
       - name: Install system packages
         run: sudo apt update && sudo apt install enchant-2 hunspell hunspell-de-de aspell-en aspell-de
       - name: Install Dependencies
-        run: pip3 install -e ".[dev]"
+        run: pip3 install uv && uv pip install --system -e ".[dev]"
       - name: Spellcheck translations
         run: potypo
         working-directory: ./src

.github/workflows/style.yml

@@ -35,7 +35,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install Dependencies
-        run: pip3 install -e ".[dev]" psycopg2-binary
+        run: pip3 install uv && uv pip install --system -e ".[dev]" psycopg2-binary
       - name: Run isort
         run: isort -c .
         working-directory: ./src
@@ -55,7 +55,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install Dependencies
-        run: pip3 install -e ".[dev]" psycopg2-binary
+        run: pip3 install uv && uv pip install --system -e ".[dev]" psycopg2-binary
       - name: Run flake8
         run: flake8 .
         working-directory: ./src

.github/workflows/tests.yml

@@ -30,15 +30,21 @@ jobs:
             python-version: "3.9"
           - database: sqlite
             python-version: "3.10"
+    services:
+      postgres:
+        image: postgres:15
+        env:
+          POSTGRES_PASSWORD: postgres
+          POSTGRES_DB: pretix
+        options: >-
+          --health-cmd "pg_isready -U postgres -d pretix"
+          --health-interval 10s
+          --health-timeout 5s
+          --health-retries 5
+        ports:
+          - 5432:5432
     steps:
       - uses: actions/checkout@v4
-      - uses: harmon758/postgresql-action@v1
-        with:
-          postgresql version: '15'
-          postgresql db: 'pretix'
-          postgresql user: 'postgres'
-          postgresql password: 'postgres'
-        if: matrix.database == 'postgres'
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
@@ -50,9 +56,9 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-pip-
       - name: Install system dependencies
-        run: sudo apt update && sudo apt install gettext
+        run: sudo apt update && sudo apt install -y gettext
       - name: Install Python dependencies
-        run: pip3 install --ignore-requires-python -e ".[dev]" psycopg2-binary  # We ignore that flake8 needs newer python as we don't run flake8 during tests
+        run: pip3 install uv && uv pip install --system -e ".[dev]" psycopg2-binary
       - name: Run checks
         run: python manage.py check
         working-directory: ./src
@@ -64,15 +70,15 @@ jobs:
         run: make all compress
       - name: Run tests
         working-directory: ./src
-        run: PRETIX_CONFIG_FILE=tests/travis_${{ matrix.database }}.cfg py.test -n 3 -p no:sugar --cov=./ --cov-report=xml --reruns 3 tests --maxfail=100
+        run: PRETIX_CONFIG_FILE=tests/ci_${{ matrix.database }}.cfg py.test -n 3 -p no:sugar --cov=./ --cov-report=xml tests --maxfail=100
       - name: Run concurrency tests
         working-directory: ./src
-        run: PRETIX_CONFIG_FILE=tests/travis_${{ matrix.database }}.cfg py.test tests/concurrency_tests/ --reruns 0 --reuse-db
+        run: PRETIX_CONFIG_FILE=tests/ci_${{ matrix.database }}.cfg py.test tests/concurrency_tests/ --reuse-db
         if: matrix.database == 'postgres'
       - name: Upload coverage
-        uses: codecov/codecov-action@v1
+        uses: codecov/codecov-action@v4
         with:
           file: src/coverage.xml
           token: ${{ secrets.CODECOV_TOKEN }}
-          fail_ci_if_error: true
+          fail_ci_if_error: false
         if: matrix.database == 'postgres' && matrix.python-version == '3.11'

.gitlab-ci.yml

@@ -10,7 +10,7 @@ tests:
         - cd src
         - python manage.py check
         - make all compress
-        - PRETIX_CONFIG_FILE=tests/travis_sqlite.cfg py.test --reruns 3 -n 3 tests --maxfail=100
+        - PRETIX_CONFIG_FILE=tests/ci_sqlite.cfg py.test -n 3 tests --maxfail=100
     except:
         - pypi
 pypi:

.node-version

@@ -0,0 +1 @@
+17

MANIFEST.in

@@ -10,6 +10,8 @@ recursive-include src/pretix/helpers/locale *
 recursive-include src/pretix/base/templates *
 recursive-include src/pretix/control/templates *
 recursive-include src/pretix/presale/templates *
+recursive-include src/pretix/plugins/autocheckin/templates *
+recursive-include src/pretix/plugins/autocheckin/static *
 recursive-include src/pretix/plugins/banktransfer/templates *
 recursive-include src/pretix/plugins/banktransfer/static *
 recursive-include src/pretix/plugins/manualpayment/templates *

deployment/docker/nginx.conf

@@ -60,6 +60,14 @@ http {
             deny all;
             return 404;
         }
+        location /static/staticfiles.json {
+            deny all;
+            return 404;
+        }
+        location /static/CACHE/manifest.json {
+            deny all;
+            return 404;
+        }
         location /static/ {
             alias /pretix/src/pretix/static.dist/;
             access_log off;

doc/admin/config.rst

@@ -288,17 +288,26 @@ Example::
     [django]
     secret=j1kjps5a5&4ilpn912s7a1!e2h!duz^i3&idu@_907s$wrz@x-
     debug=off
+    passwords_argon2=on
 
 ``secret``
     The secret to be used by Django for signing and verification purposes. If this
     setting is not provided, pretix will generate a random secret on the first start
     and will store it in the filesystem for later usage.
 
+``secret_fallback0`` ... ``secret_fallback9``
+    Prior versions of the secret to be used by Django for signing and verification purposes that will still
+    be accepted but no longer be used for new signing.
+
 ``debug``
     Whether or not to run in debug mode. Default is ``False``.
 
     .. WARNING:: Never set this to ``True`` in production!
 
+``passwords_argon``
+    Use the ``argon2`` algorithm for password hashing. Disable on systems with a small number of CPU cores (currently
+    less than 8).
+
 ``profile``
     Enable code profiling for a random subset of requests. Disabled by default, see
     :ref:`perf-monitoring` for details.

doc/admin/installation/docker_smallscale.rst

@@ -231,11 +231,10 @@ The following snippet is an example on how to configure a nginx proxy for pretix
         }
     }
     server {
-        listen 443 default_server;
-        listen [::]:443 ipv6only=on default_server;
+        listen 443 ssl default_server;
+        listen [::]:443 ipv6only=on ssl default_server;
         server_name pretix.mydomain.com;
 
-        ssl on;
         ssl_certificate /path/to/cert.chain.pem;
         ssl_certificate_key /path/to/key.pem;
 

doc/admin/installation/manual_smallscale.rst

@@ -216,11 +216,10 @@ The following snippet is an example on how to configure a nginx proxy for pretix
         }
     }
     server {
-        listen 443 default_server;
-        listen [::]:443 ipv6only=on default_server;
+        listen 443 ssl default_server;
+        listen [::]:443 ipv6only=on ssl default_server;
         server_name pretix.mydomain.com;
 
-        ssl on;
         ssl_certificate /path/to/cert.chain.pem;
         ssl_certificate_key /path/to/key.pem;
 
@@ -249,6 +248,14 @@ The following snippet is an example on how to configure a nginx proxy for pretix
             return 404;
         }
 
+        location /static/staticfiles.json {
+            deny all;
+            return 404;
+        }
+        location /static/CACHE/manifest.json {
+            deny all;
+            return 404;
+        }
         location /static/ {
             alias /var/pretix/venv/lib/python3.11/site-packages/pretix/static.dist/;
             access_log off;

doc/admin/updates.rst

@@ -73,4 +73,11 @@ This release includes a migration that changes retroactively fills an `organizer
 `pretixbase_logentry`. If you have a large database, the migration step of the upgrade might take significantly
 longer than usual, so plan the update accordingly.
 
+Upgrade to 2024.7.0 or newer
+"""""""""""""""""""""""""""""
+
+This release includes a migration that changes how sales channels are referred on orders.
+If you have a large database, the migration step of the upgrade might take significantly longer than usual, so plan
+the update accordingly.
+
 .. _blog: https://pretix.eu/about/en/blog/

doc/api/resources/auto_checkin_rules.rst

@@ -0,0 +1,259 @@
+.. _rest-autocheckinrules:
+
+Auto check-in rules
+===================
+
+This feature requires the bundled ``pretix.plugins.autocheckin`` plugin to be active for the event in order to work properly.
+
+Resource description
+--------------------
+
+Auto check-in rules specify that tickets should under specific conditions automatically be considered checked in after
+they have been purchased.
+
+.. rst-class:: rest-resource-table
+
+===================================== ========================== =======================================================
+Field                                 Type                       Description
+===================================== ========================== =======================================================
+id                                    integer                    Internal ID of the rule
+list                                  integer                    ID of the check-in list to check the ticket in on. If
+                                                                 ``None``, the system will select all matching check-in lists.
+mode                                  string                     ``"placed"`` if the rule should be evaluated right after
+                                                                 an order has been created, ``"paid"`` if the rule should
+                                                                 be evaluated after the order has been fully paid.
+all_sales_channels                    boolean                    If ``true`` (default), the rule applies to tickets sold on all sales channels.
+limit_sales_channels                  list of strings            List of sales channel identifiers the rule should apply to
+                                                                 if ``all_sales_channels`` is ``false``.
+all_products                          boolean                    If ``true`` (default), the rule affects all products and variations.
+limit_products                        list of integers           List of item IDs, if ``all_products`` is not set. If the
+                                                                 product listed here has variations, all variations will be matched.
+limit_variations                      list of integers           List of product variation IDs, if ``all_products`` is not set.
+                                                                 The parent product does not need to be part of ``limit_products``.
+all_payment_methods                   boolean                    If ``true`` (default), the rule applies to tickets paid with all payment methods.
+limit_payment_methods                 list of strings            List of payment method identifiers the rule should apply to
+                                                                 if ``all_payment_methods`` is ``false``.
+===================================== ========================== =======================================================
+
+.. versionadded:: 2024.7
+
+Endpoints
+---------
+
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/auto_checkin_rules/
+
+   Returns a list of all rules configured for an event.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      GET /api/v1/organizers/bigevents/events/sampleconf/auto_checkin_rules/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "count": 1,
+        "next": null,
+        "previous": null,
+        "results": [
+          {
+            "id": 1,
+            "list": 12345,
+            "mode": "placed",
+            "all_sales_channels": false,
+            "limit_sales_channels": ["web"],
+            "all_products": false,
+            "limit_products": [2, 3],
+            "limit_variations": [456],
+            "all_payment_methods": true,
+            "limit_payment_methods": []
+          }
+        ]
+      }
+
+   :query page: The page number in case of a multi-page result set, default is 1
+   :param organizer: The ``slug`` field of a valid organizer
+   :param event: The ``slug`` field of the event to fetch
+   :statuscode 200: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer does not exist **or** you have no permission to view it.
+
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/auto_checkin_rules/(id)/
+
+   Returns information on one rule, identified by its ID.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      GET /api/v1/organizers/bigevents/events/sampleconf/auto_checkin_rules/1/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "id": 1,
+        "list": 12345,
+        "mode": "placed",
+        "all_sales_channels": false,
+        "limit_sales_channels": ["web"],
+        "all_products": false,
+        "limit_products": [2, 3],
+        "limit_variations": [456],
+        "all_payment_methods": true,
+        "limit_payment_methods": []
+      }
+
+   :param organizer: The ``slug`` field of the organizer to fetch
+   :param event: The ``slug`` field of the event to fetch
+   :param id: The ``id`` field of the rule to fetch
+   :statuscode 200: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event/rule does not exist **or** you have no permission to view it.
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/auto_checkin_rules/
+
+   Create a new rule.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/auto_checkin_rules/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+      Content-Length: 166
+
+      {
+        "list": 12345,
+        "mode": "placed",
+        "all_sales_channels": false,
+        "limit_sales_channels": ["web"],
+        "all_products": false,
+        "limit_products": [2, 3],
+        "limit_variations": [456],
+        "all_payment_methods": true,
+        "limit_payment_methods": []
+      }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 201 Created
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "id": 1,
+        "list": 12345,
+        "mode": "placed",
+        "all_sales_channels": false,
+        "limit_sales_channels": ["web"],
+        "all_products": false,
+        "limit_products": [2, 3],
+        "limit_variations": [456],
+        "all_payment_methods": true,
+        "limit_payment_methods": []
+      }
+
+   :param organizer: The ``slug`` field of the organizer to create a rule for
+   :param event: The ``slug`` field of the event to create a rule for
+   :statuscode 201: no error
+   :statuscode 400: The rule could not be created due to invalid submitted data.
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to create rules.
+
+
+.. http:patch:: /api/v1/organizers/(organizer)/events/(event)/auto_checkin_rules/(id)/
+
+   Update a rule. You can also use ``PUT`` instead of ``PATCH``. With ``PUT``, you have to provide all fields of
+   the resource, other fields will be reset to default. With ``PATCH``, you only need to provide the fields that you
+   want to change.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      PATCH /api/v1/organizers/bigevents/events/sampleconf/auto_checkin_rules/1/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+      Content-Length: 34
+
+      {
+        "mode": "paid",
+      }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: text/javascript
+
+      {
+        "id": 1,
+        "list": 12345,
+        "mode": "placed",
+        "all_sales_channels": false,
+        "limit_sales_channels": ["web"],
+        "all_products": false,
+        "limit_products": [2, 3],
+        "limit_variations": [456],
+        "all_payment_methods": true,
+        "limit_payment_methods": []
+      }
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param id: The ``id`` field of the rule to modify
+   :statuscode 200: no error
+   :statuscode 400: The rule could not be modified due to invalid submitted data.
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event/rule does not exist **or** you have no permission to change it.
+
+
+.. http:delete:: /api/v1/organizers/(organizer)/events/(event)/auto_checkin_rules/(id)/
+
+   Delete a rule.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      DELETE /api/v1/organizers/bigevents/events/sampleconf/auto_checkin_rules/1/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 204 No Content
+      Vary: Accept
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param id: The ``id`` field of the rule to delete
+   :statuscode 204: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event/rule does not exist **or** you have no permission to change it **or** this rule cannot be deleted since it is currently in use.

doc/api/resources/categories.rst

@@ -23,6 +23,22 @@ position                              integer                    An integer, use
 is_addon                              boolean                    If ``true``, items within this category are not on sale
                                                                  on their own but the category provides a source for
                                                                  defining add-ons for other products.
+cross_selling_mode                    string                     If ``null``, cross-selling is disabled for this category.
+                                                                 If ``"only"``, it is only visible in the cross-selling
+                                                                 step.
+                                                                 If ``"both"``, it is visible on the normal index page
+                                                                 as well.
+                                                                 Only available if ``is_addon`` is ``false``.
+cross_selling_condition               string                     Only relevant if ``cross_selling_mode`` is not ``null``.
+                                                                 If ``"always"``, always show in cross-selling step.
+                                                                 If ``"products"``, only show if the cart contains one of
+                                                                 the products listed in ``cross_selling_match_products``.
+                                                                 If ``"discounts"``, only show products that qualify for
+                                                                 a discount according to discount rules.
+cross_selling_match_products          list of integer            Only relevant if ``cross_selling_condition`` is
+                                                                 ``"products"``. Internal ID of the items of which at
+                                                                 least one needs to be in the cart for this category to
+                                                                 be shown.
 ===================================== ========================== =======================================================
 
 
@@ -60,7 +76,10 @@ Endpoints
             "internal_name": "",
             "description": {"en": "Tickets are what you need to get in."},
             "position": 1,
-            "is_addon": false
+            "is_addon": false,
+            "cross_selling_mode": null,
+            "cross_selling_condition": null,
+            "cross_selling_match_products": []
           }
         ]
       }
@@ -102,7 +121,10 @@ Endpoints
         "internal_name": "",
         "description": {"en": "Tickets are what you need to get in."},
         "position": 1,
-        "is_addon": false
+        "is_addon": false,
+        "cross_selling_mode": null,
+        "cross_selling_condition": null,
+        "cross_selling_match_products": []
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch
@@ -130,7 +152,10 @@ Endpoints
         "internal_name": "",
         "description": {"en": "Tickets are what you need to get in."},
         "position": 1,
-        "is_addon": false
+        "is_addon": false,
+        "cross_selling_mode": null,
+        "cross_selling_condition": null,
+        "cross_selling_match_products": []
       }
 
    **Example response**:
@@ -147,7 +172,10 @@ Endpoints
         "internal_name": "",
         "description": {"en": "Tickets are what you need to get in."},
         "position": 1,
-        "is_addon": false
+        "is_addon": false,
+        "cross_selling_mode": null,
+        "cross_selling_condition": null,
+        "cross_selling_match_products": []
       }
 
    :param organizer: The ``slug`` field of the organizer of the event to create a category for
@@ -193,7 +221,10 @@ Endpoints
         "internal_name": "",
         "description": {"en": "Tickets are what you need to get in."},
         "position": 1,
-        "is_addon": true
+        "is_addon": true,
+        "cross_selling_mode": null,
+        "cross_selling_condition": null,
+        "cross_selling_match_products": []
       }
 
    :param organizer: The ``slug`` field of the organizer to modify

doc/api/resources/checkinlists.rst

@@ -31,7 +31,6 @@ subevent                              integer                    ID of the date
 position_count                        integer                    Number of tickets that match this list (read-only).
 checkin_count                         integer                    Number of check-ins performed on this list (read-only).
 include_pending                       boolean                    If ``true``, the check-in list also contains tickets from orders in pending state.
-auto_checkin_sales_channels           list of strings            All items on the check-in list will be automatically marked as checked-in when purchased through any of the listed sales channels.
 allow_multiple_entries                boolean                    If ``true``, subsequent scans of a ticket on this list should not show a warning but instead be stored as an additional check-in.
 allow_entry_after_exit                boolean                    If ``true``, subsequent scans of a ticket on this list are valid if the last scan of the ticket was an exit scan.
 rules                                 object                     Custom check-in logic. The contents of this field are currently not considered a stable API and modifications through the API are highly discouraged.
@@ -90,10 +89,7 @@ Endpoints
             "allow_entry_after_exit": true,
             "exit_all_at": null,
             "rules": {},
-            "addon_match": false,
-            "auto_checkin_sales_channels": [
-              "pretixpos"
-            ]
+            "addon_match": false
           }
         ]
       }
@@ -145,10 +141,7 @@ Endpoints
         "allow_entry_after_exit": true,
         "exit_all_at": null,
         "rules": {},
-        "addon_match": false,
-        "auto_checkin_sales_channels": [
-          "pretixpos"
-        ]
+        "addon_match": false
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch
@@ -245,10 +238,7 @@ Endpoints
         "subevent": null,
         "allow_multiple_entries": false,
         "allow_entry_after_exit": true,
-        "addon_match": false,
-        "auto_checkin_sales_channels": [
-          "pretixpos"
-        ]
+        "addon_match": false
       }
 
    **Example response**:
@@ -270,10 +260,7 @@ Endpoints
         "subevent": null,
         "allow_multiple_entries": false,
         "allow_entry_after_exit": true,
-        "addon_match": false,
-        "auto_checkin_sales_channels": [
-          "pretixpos"
-        ]
+        "addon_match": false
       }
 
    :param organizer: The ``slug`` field of the organizer of the event/item to create a list for
@@ -325,10 +312,7 @@ Endpoints
         "subevent": null,
         "allow_multiple_entries": false,
         "allow_entry_after_exit": true,
-        "addon_match": false,
-        "auto_checkin_sales_channels": [
-          "pretixpos"
-        ]
+        "addon_match": false
       }
 
    :param organizer: The ``slug`` field of the organizer to modify
@@ -341,7 +325,7 @@ Endpoints
 
 .. http:delete:: /api/v1/organizers/(organizer)/events/(event)/checkinlist/(id)/
 
-   Delete a check-in list. Note that this also deletes the information on all check-ins performed via this list.
+   Delete a check-in list. **Note that this also deletes the information on all check-ins performed via this list.**
 
    **Example request**:
 

doc/api/resources/index.rst

@@ -44,5 +44,7 @@ at :ref:`plugin-docs`.
    scheduled_exports
    shredders
    sendmail_rules
+   auto_checkin_rules
    billing_invoices
-   billing_var
+   billing_var
+   seats

doc/api/resources/invoices.rst

@@ -97,6 +97,7 @@ lines                                 list of objects            The actual invo
 ├ gross_value                         money (string)             Price including taxes
 ├ tax_value                           money (string)             Tax amount included
 ├ tax_name                            string                     Name of used tax rate (e.g. "VAT")
+├ tax_code                            string                     Codified reason for tax rate (or ``null``), see :ref:`rest-taxcodes`.
 └ tax_rate                            decimal (string)           Used tax rate
 foreign_currency_display              string                     If the invoice should also show the total and tax
                                                                  amount in a different currency, this contains the
@@ -126,6 +127,10 @@ internal_reference                    string                     Customer's refe
 
    The ``event`` attribute has been added. The organizer-level endpoint has been added.
 
+.. versionchanged:: 2024.8
+
+   The ``tax_code`` attribute has been added.
+
 
 List of all invoices
 --------------------
@@ -203,6 +208,7 @@ List of all invoices
                 "gross_value": "23.00",
                 "tax_value": "0.00",
                 "tax_name": "VAT",
+                "tax_code": "S/standard",
                 "tax_rate": "0.00"
               }
             ],
@@ -217,6 +223,9 @@ List of all invoices
    :query boolean is_cancellation: If set to ``true`` or ``false``, only invoices with this value for the field
                                    ``is_cancellation`` will be returned.
    :query string order: If set, only invoices belonging to the order with the given order code will be returned.
+                        This parameter may be given multiple times. In this case, all invoices matching one of the inputs will be returned.
+   :query string number: If set, only invoices with the given invoice number will be returned.
+                        This parameter may be given multiple times. In this case, all invoices matching one of the inputs will be returned.
    :query string refers: If set, only invoices referring to the given invoice will be returned.
    :query string locale: If set, only invoices with the given locale will be returned.
    :query string ordering: Manually set the ordering of results. Valid fields to be used are ``date`` and
@@ -339,6 +348,7 @@ Fetching individual invoices
             "gross_value": "23.00",
             "tax_value": "0.00",
             "tax_name": "VAT",
+            "tax_code": "S/standard",
             "tax_rate": "0.00"
           }
         ],
@@ -349,12 +359,12 @@ Fetching individual invoices
 
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
-   :param invoice_no: The ``invoice_no`` field of the invoice to fetch
+   :param number: The ``number`` field of the invoice to fetch
    :statuscode 200: no error
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
 
-.. http:get:: /api/v1/organizers/(organizer)/events/(event)/invoices/(invoice_no)/download/
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/invoices/(number)/download/
 
    Download an invoice in PDF format.
 
@@ -381,7 +391,7 @@ Fetching individual invoices
 
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
-   :param invoice_no: The ``invoice_no`` field of the invoice to fetch
+   :param number: The ``number`` field of the invoice to fetch
    :statuscode 200: no error
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
@@ -394,7 +404,7 @@ Modifying invoices
 
 Invoices cannot be edited directly, but the following actions can be triggered:
 
-.. http:post:: /api/v1/organizers/(organizer)/events/(event)/invoices/(invoice_no)/reissue/
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/invoices/(number)/reissue/
 
    Cancels the invoice and creates a new one.
 
@@ -416,13 +426,13 @@ Invoices cannot be edited directly, but the following actions can be triggered:
 
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
-   :param invoice_no: The ``invoice_no`` field of the invoice to reissue
+   :param number: The ``number`` field of the invoice to reissue
    :statuscode 200: no error
    :statuscode 400: The invoice has already been canceled
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to change this resource.
 
-.. http:post:: /api/v1/organizers/(organizer)/events/(event)/invoices/(invoice_no)/regenerate/
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/invoices/(number)/regenerate/
 
    Re-generates the invoice from order data.
 
@@ -444,7 +454,7 @@ Invoices cannot be edited directly, but the following actions can be triggered:
 
    :param organizer: The ``slug`` field of the organizer to fetch
    :param event: The ``slug`` field of the event to fetch
-   :param invoice_no: The ``invoice_no`` field of the invoice to regenerate
+   :param number: The ``number`` field of the invoice to regenerate
    :statuscode 200: no error
    :statuscode 400: The invoice has already been canceled
    :statuscode 401: Authentication failure

doc/api/resources/items.rst

@@ -69,6 +69,10 @@ hidden_if_available                     integer                    **DEPRECATED*
 hidden_if_item_available                integer                    The internal ID of a different item, or ``null``. If
                                                                    set, this item won't be shown publicly as long as this
                                                                    other item is available.
+hidden_if_item_available_mode           string                     If ``hide`` (the default), this item is hidden in the shop
+                                                                   if unavailable due to the ``hidden_if_item_available`` setting.
+                                                                   If ``info``, the item is visible, but can't be purchased,
+                                                                   and a note explaining the unavailability is displayed.
 require_voucher                         boolean                    If ``true``, this item can only be bought using a
                                                                    voucher that is specifically assigned to this item.
 hide_without_voucher                    boolean                    If ``true``, this item is only shown during the voucher
@@ -239,6 +243,10 @@ meta_data                               object                     Values set fo
    The ``hidden_if_item_available`` attributes has been added, the ``hidden_if_available`` attribute has been
    deprecated.
 
+.. versionchanged:: 2025.01
+
+   The ``hidden_if_item_available_mode`` attributes has been added.
+
 Notes
 -----
 
@@ -308,6 +316,7 @@ Endpoints
             "available_until_mode": "hide",
             "hidden_if_available": null,
             "hidden_if_item_available": null,
+            "hidden_if_item_available_mode": "hide",
             "require_voucher": false,
             "hide_without_voucher": false,
             "allow_cancel": true,
@@ -459,6 +468,7 @@ Endpoints
         "available_until_mode": "hide",
         "hidden_if_available": null,
         "hidden_if_item_available": null,
+        "hidden_if_item_available_mode": "hide",
         "require_voucher": false,
         "hide_without_voucher": false,
         "allow_cancel": true,
@@ -589,6 +599,7 @@ Endpoints
         "available_until_mode": "hide",
         "hidden_if_available": null,
         "hidden_if_item_available": null,
+        "hidden_if_item_available_mode": "hide",
         "require_voucher": false,
         "hide_without_voucher": false,
         "allow_cancel": true,
@@ -705,6 +716,7 @@ Endpoints
         "available_until_mode": "hide",
         "hidden_if_available": null,
         "hidden_if_item_available": null,
+        "hidden_if_item_available_mode": "hide",
         "require_voucher": false,
         "hide_without_voucher": false,
         "allow_cancel": true,
@@ -855,6 +867,7 @@ Endpoints
         "available_until_mode": "hide",
         "hidden_if_available": null,
         "hidden_if_item_available": null,
+        "hidden_if_item_available_mode": "hide",
         "require_voucher": false,
         "hide_without_voucher": false,
         "generate_tickets": null,

doc/api/resources/orders.rst

@@ -84,6 +84,7 @@ fees                                  list of objects            List of fees in
 ├ tax_rate                            decimal (string)           VAT rate applied for this fee
 ├ tax_value                           money (string)             VAT included in this fee
 ├ tax_rule                            integer                    The ID of the used tax rule (or ``null``)
+├ tax_code                            string                     Codified reason for tax rate (or ``null``), see :ref:`rest-taxcodes`.
 └ canceled                            boolean                    Whether or not this fee has been canceled.
 downloads                             list of objects            List of ticket download options for order-wise ticket
                                                                  downloading. This might be a multi-page PDF or a ZIP
@@ -104,6 +105,10 @@ url                                   string                     The full URL to
 payments                              list of objects            List of payment processes (see below)
 refunds                               list of objects            List of refund processes (see below)
 last_modified                         datetime                   Last modification of this object
+cancellation_date                     datetime                   Time of order cancellation (or ``null``). **Note**:
+                                                                 Will not be set for partial cancellations and is not
+                                                                 reliable for orders that have been cancelled,
+                                                                 reactivated and cancelled again.
 ===================================== ========================== =======================================================
 
 
@@ -151,6 +156,13 @@ last_modified                         datetime                   Last modificati
 
    The ``expires`` attribute can now be passed during order creation.
 
+.. versionchanged:: 2024.11
+
+   The ``cancellation_date`` attribute has been added and can also be used as an ordering key.
+
+.. versionchanged:: 2025.1
+
+   The ``tax_code`` attribute has been added.
 
 .. _order-position-resource:
 
@@ -188,6 +200,7 @@ voucher_budget_use                    money (string)             Amount of money
                                                                  are changed *after* the order was created. Can be ``null``.
 tax_rate                              decimal (string)           VAT rate applied for this position
 tax_value                             money (string)             VAT included in this position
+tax_code                              string                     Codified reason for tax rate (or ``null``), see :ref:`rest-taxcodes`.
 tax_rule                              integer                    The ID of the used tax rule (or ``null``)
 secret                                string                     Secret code printed on the tickets for validation
 addon_to                              integer                    Internal ID of the position this position is an add-on for (or ``null``)
@@ -203,8 +216,20 @@ checkins                              list of objects            List of **succe
 ├ datetime                            datetime                   Time of check-in
 ├ type                                string                     Type of scan (defaults to ``entry``)
 ├ gate                                integer                    Internal ID of the gate. Can be ``null``.
-├ device                              integer                    Internal ID of the device. Can be ``null``.
+├ device                              integer                    Internal ID of the device. Can be ``null``. **Deprecated**, since this ID is not otherwise used in the API and is therefore not very useful.
+├ device_id                           integer                    Attribute ``device_id`` of the device. Can be ``null``.
 └ auto_checked_in                     boolean                    Indicates if this check-in been performed automatically by the system
+print_logs                            list of objects            List of print jobs recorded e.g. by the pretix apps
+├ id                                  integer                    Internal ID of the print job
+├ successful                          boolean                    Whether the print job successfully resulted in a print.
+                                                                 This is not expected to be 100 % reliable information (since
+                                                                 printer feedback is never perfect) and there is no guarantee
+                                                                 that unsuccessful jobs will be logged.
+├ device_id                           integer                    Attribute ``device_id`` of the device that recorded the print. Can be ``null``.
+├ datetime                            datetime                   Time of printing
+├ source                              string                     Source of print job, e.g. name of the app used.
+├ type                                string                     Type of print (currently ``badge``, ``ticket``, ``certificate``, or ``other``)
+└ info                                object                     Additional data with client-dependent structure.
 downloads                             list of objects            List of ticket download options
 ├ output                              string                     Ticket output provider (e.g. ``pdf``, ``passbook``)
 └ url                                 string                     Download URL
@@ -232,6 +257,14 @@ pdf_data                              object                     Data object req
 
    The attributes ``blocked``, ``valid_from`` and ``valid_until`` have been added.
 
+.. versionchanged:: 2024.9
+
+   The attribute ``print_logs`` has been added.
+
+.. versionchanged:: 2025.1
+
+   The ``tax_code`` attribute has been added.
+
 .. _order-payment-resource:
 
 Order payment resource
@@ -383,6 +416,7 @@ List of all orders
                 "tax_rate": "0.00",
                 "tax_value": "0.00",
                 "tax_rule": null,
+                "tax_code": null,
                 "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
                 "addon_to": null,
                 "subevent": null,
@@ -398,10 +432,21 @@ List of all orders
                     "type": "entry",
                     "gate": null,
                     "device": 2,
+                    "device_id": 1,
                     "datetime": "2017-12-25T12:45:23Z",
                     "auto_checked_in": false
                   }
                 ],
+                "print_logs": [
+                  {
+                    "id": 1,
+                    "type": "badge",
+                    "datetime": "2017-12-25T12:45:23Z",
+                    "device_id": 1,
+                    "source": "pretixSCAN",
+                    "info": {}
+                  }
+                ],
                 "answers": [
                   {
                     "question": 12,
@@ -437,14 +482,15 @@ List of all orders
                 "provider": "banktransfer"
               }
             ],
-            "refunds": []
+            "refunds": [],
+            "cancellation_date": null
           }
         ]
       }
 
    :query integer page: The page number in case of a multi-page result set, default is 1
    :query string ordering: Manually set the ordering of results. Valid fields to be used are ``datetime``, ``code``,
-                           ``last_modified``, and ``status``. Default: ``datetime``
+                           ``last_modified``, ``status`` and ``cancellation_date``. Default: ``datetime``
    :query string code: Only return orders that match the given order code
    :query string status: Only return orders in the given order status (see above)
    :query string search: Only return orders matching a given search query (matching for names, email addresses, and company names)
@@ -610,6 +656,7 @@ Fetching individual orders
             "tax_rate": "0.00",
             "tax_rule": null,
             "tax_value": "0.00",
+            "tax_code": null,
             "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
             "addon_to": null,
             "subevent": null,
@@ -625,10 +672,22 @@ Fetching individual orders
                 "type": "entry",
                 "gate": null,
                 "device": 2,
+                "device_id": 1,
                 "datetime": "2017-12-25T12:45:23Z",
                 "auto_checked_in": false
               }
             ],
+            "print_logs": [
+              {
+                "id": 1,
+                "type": "badge",
+                "successful": true,
+                "datetime": "2017-12-25T12:45:23Z",
+                "device_id": 1,
+                "source": "pretixSCAN",
+                "info": {}
+              }
+            ],
             "answers": [
               {
                 "question": 12,
@@ -664,7 +723,8 @@ Fetching individual orders
             "provider": "banktransfer"
           }
         ],
-        "refunds": []
+        "refunds": [],
+        "cancellation_date": null
       }
 
    :param organizer: The ``slug`` field of the organizer to fetch
@@ -795,7 +855,7 @@ Generating new secrets
 
 .. http:post:: /api/v1/organizers/(organizer)/events/(event)/orders/(code)/regenerate_secrets/
 
-   Triggers generation of new ``secret`` attributes for both the order and all order positions.
+   Triggers generation of new ``secret`` and ``web_secret`` attributes for both the order and all order positions.
 
    **Example request**:
 
@@ -826,7 +886,7 @@ Generating new secrets
 
 .. http:post:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/regenerate_secrets/
 
-   Triggers generation of a new ``secret`` attribute for a single order position.
+   Triggers generation of a new ``secret`` and ``web_secret`` attribute for a single order position.
 
    **Example request**:
 
@@ -976,8 +1036,8 @@ Creating orders
       * ``internal_reference``
       * ``vat_id``
       * ``vat_id_validated`` (optional) – If you need support for reverse charge (rarely the case), you need to check
-       yourself if the passed VAT ID is a valid EU VAT ID. In that case, set this to ``true``. Only valid VAT IDs will
-       trigger reverse charge taxation. Don't forget to set ``is_business`` as well!
+         yourself if the passed VAT ID is a valid EU VAT ID. In that case, set this to ``true``. Only valid VAT IDs will
+         trigger reverse charge taxation. Don't forget to set ``is_business`` as well!
 
    * ``positions``
 
@@ -1565,6 +1625,7 @@ List of all order positions
             "tax_rate": "0.00",
             "tax_rule": null,
             "tax_value": "0.00",
+            "tax_code": null,
             "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
             "discount": null,
             "pseudonymization_id": "MQLJvANO3B",
@@ -1580,10 +1641,22 @@ List of all order positions
                 "type": "entry",
                 "gate": null,
                 "device": 2,
+                "device_id": 1,
                 "datetime": "2017-12-25T12:45:23Z",
                 "auto_checked_in": false
               }
             ],
+            "print_logs": [
+              {
+                "id": 1,
+                "type": "badge",
+                "successful": true,
+                "datetime": "2017-12-25T12:45:23Z",
+                "device_id": 1,
+                "source": "pretixSCAN",
+                "info": {}
+              }
+            ],
             "answers": [
               {
                 "question": 12,
@@ -1679,6 +1752,7 @@ Fetching individual positions
         "tax_rate": "0.00",
         "tax_rule": null,
         "tax_value": "0.00",
+        "tax_code": null,
         "secret": "z3fsn8jyufm5kpk768q69gkbyr5f4h6w",
         "addon_to": null,
         "subevent": null,
@@ -1694,10 +1768,22 @@ Fetching individual positions
             "type": "entry",
             "gate": null,
             "device": 2,
+            "device_id": 1,
             "datetime": "2017-12-25T12:45:23Z",
             "auto_checked_in": false
           }
         ],
+        "print_logs": [
+          {
+            "id": 1,
+            "type": "badge",
+            "successful": true,
+            "datetime": "2017-12-25T12:45:23Z",
+            "device_id": 1,
+            "source": "pretixSCAN",
+            "info": {}
+          }
+        ],
         "answers": [
           {
             "question": 12,
@@ -1794,6 +1880,10 @@ Manipulating individual positions
 
    The endpoints to manage blocks have been added.
 
+.. versionchanged:: 2024.9
+
+   The API now supports logging ticket and badge prints.
+
 .. http:patch:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/
 
    Updates specific fields on an order position. Currently, only the following fields are supported:
@@ -2053,6 +2143,59 @@ Manipulating individual positions
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to update this order position.
 
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/orderpositions/(id)/printlog/
+
+   Creates a print log, stating that this ticket has been printed.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/orderpositions/23442/printlog/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+
+     {
+       "datetime": "2024-09-19T13:37:00+02:00",
+       "source": "pretixPOS",
+       "type": "badge",
+       "info": {
+         "cashier": 1234
+       }
+     }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 201 Created
+      Vary: Accept
+      Content-Type: application/pdf
+
+     {
+       "id": 1234,
+       "device_id": null,
+       "datetime": "2024-09-19T13:37:00+02:00",
+       "source": "pretixPOS",
+       "type": "badge",
+       "info": {
+         "cashier": 1234
+       }
+     }
+
+   :param organizer: The ``slug`` field of the organizer to create a log for
+   :param event: The ``slug`` field of the event to create a log for
+   :param id: The ``id`` field of the order position to create a log for
+   :statuscode 201: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource
+                    **or** downloads are not available for this order position at this time. The response content will
+                    contain more details.
+   :statuscode 404: The requested order position or download provider does not exist.
+   :statuscode 409: The file is not yet ready and will now be prepared. Retry the request after waiting for a few
+                    seconds.
+
 Changing order contents
 -----------------------
 

doc/api/resources/saleschannels.rst

@@ -51,7 +51,7 @@ Endpoints
         "results": [
           {
             "identifier": "web",
-            "name": {
+            "label": {
               "en": "Online shop"
             },
             "type": "web",
@@ -88,7 +88,7 @@ Endpoints
 
       {
         "identifier": "web",
-        "name": {
+        "label": {
           "en": "Online shop"
         },
         "type": "web",
@@ -116,7 +116,7 @@ Endpoints
 
       {
         "identifier": "api.custom",
-        "name": {
+        "label": {
           "en": "Custom integration"
         },
         "type": "api",
@@ -133,7 +133,7 @@ Endpoints
 
       {
         "identifier": "api.custom",
-        "name": {
+        "label": {
           "en": "Custom integration"
         },
         "type": "api",
@@ -178,7 +178,7 @@ Endpoints
 
       {
         "identifier": "web",
-        "name": {
+        "label": {
           "en": "Online shop"
         },
         "type": "web",

doc/api/resources/scheduled_exports.rst

@@ -313,7 +313,7 @@ Endpoints for event exports
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to delete this resource.
 
 Endpoints for organizer exports
----------------------------
+-------------------------------
 
 .. http:get:: /api/v1/organizers/(organizer)/scheduled_exports/
 
@@ -553,4 +553,4 @@ Endpoints for organizer exports
    :statuscode 403: The requested organizer does not exist **or** you have no permission to delete this resource.
 
 
-.. _RFC 5545: https://datatracker.ietf.org/doc/html/rfc5545#section-3.8.5.3
+.. _RFC 5545: https://datatracker.ietf.org/doc/html/rfc5545#section-3.8.5.3

doc/api/resources/seats.rst

@@ -0,0 +1,373 @@
+.. _`rest-seats`:
+
+Seats
+=====
+
+The seat resource represents the seats in a seating plan in a specific event or subevent.
+
+Resource description
+--------------------
+
+The seat resource contains the following public fields:
+
+.. rst-class:: rest-resource-table
+
+===================================== ========================== =======================================================
+Field                                 Type                       Description
+===================================== ========================== =======================================================
+id                                    integer                    Internal ID of this seat
+subevent                              integer                    Internal ID of the subevent this seat belongs to
+zone_name                             string                     Name of the zone the seat is in
+row_name                              string                     Name/number of the row the seat is in
+row_label                             string                     Additional label of the row (or ``null``)
+seat_number                           string                     Number of the seat within the row
+seat_label                            string                     Additional label of the seat (or ``null``)
+seat_guid                             string                     Identifier of the seat within the seating plan
+product                               integer                    Internal ID of the product that is mapped to this seat
+blocked                               boolean                    Whether this seat is blocked manually.
+orderposition                         integer / object           Internal ID of an order position reserving this seat.
+cartposition                          integer / object           Internal ID of a cart position reserving this seat.
+voucher                               integer / object           Internal ID of a voucher reserving this seat.
+===================================== ========================== =======================================================
+
+Endpoints
+---------
+
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/seats/
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/subevents/(subevent_id)/seats/
+
+   Returns a list of all seats in the specified event or subevent. Depending on whether the event has subevents, the
+   according endpoint has to be used.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      GET /api/v1/organizers/bigevents/events/sampleconf/seats/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+        HTTP/1.1 200 OK
+        Vary: Accept
+        Content-Type: application/json
+
+        {
+            "count": 500,
+            "next": "https://pretix.eu/api/v1/organizers/bigevents/events/sampleconf/seats/?page=2",
+            "previous": null,
+            "results": [
+                {
+                    "id": 1633,
+                    "subevent": null,
+                    "zone_name": "Ground floor",
+                    "row_name": "1",
+                    "row_label": null,
+                    "seat_number": "1",
+                    "seat_label": null,
+                    "seat_guid": "b9746230-6f31-4f41-bbc9-d6b60bdb3342",
+                    "product": 104,
+                    "blocked": false,
+                    "orderposition": null,
+                    "cartposition": null,
+                    "voucher": 51
+                },
+                {
+                    "id": 1634,
+                    "subevent": null,
+                    "zone_name": "Ground floor",
+                    "row_name": "1",
+                    "row_label": null,
+                    "seat_number": "2",
+                    "seat_label": null,
+                    "seat_guid": "1d29fe20-8e1e-4984-b0ee-2773b0d07e07",
+                    "product": 104,
+                    "blocked": true,
+                    "orderposition": 4321,
+                    "cartposition": null,
+                    "voucher": null
+                },
+                // ...
+            ]
+        }
+
+   :query integer page: The page number in case of a multi-page result set, default is 1.
+   :query string zone_name: Only show seats with the given zone_name.
+   :query string row_name: Only show seats with the given row_name.
+   :query string row_label: Only show seats with the given row_label.
+   :query string seat_number: Only show seats with the given seat_number.
+   :query string seat_label: Only show seats with the given seat_label.
+   :query string seat_guid: Only show seats with the given seat_guid.
+   :query boolean blocked: Only show seats with the given blocked status.
+   :query boolean is_available: Only show seats that are (not) currently available.
+   :query string expand: If you pass ``"orderposition"``, ``"cartposition"``, or ``"voucher"``, the respective field will be
+                         shown as a nested value instead of just an ID. This requires permission to access that object.
+                         The nested objects are identical to the respective resources, except that order positions
+                         will have an attribute of the format ``"order": {"code": "ABCDE", "event": "eventslug"}`` to make
+                         matching easier, and won't include the `seat` attribute, as that would be redundant.
+                         The parameter can be given multiple times.
+   :param organizer: The ``slug`` field of the organizer to fetch
+   :param event: The ``slug`` field of the event to fetch
+   :param subevent_id: The ``id`` field of the subevent to fetch
+   :statuscode 200: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer does not exist **or** you have no permission to view this resource.
+   :statuscode 404: Endpoint without subevent id was used for event with subevents, or vice versa.
+
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/seats/(id)/
+.. http:get:: /api/v1/organizers/(organizer)/events/(event)/subevents/(subevent_id)/seats/(id)/
+
+   Returns information on one seat, identified by its ID.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+        GET /api/v1/organizers/bigevents/events/sampleconf/seats/1634/?expand=orderposition HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+        HTTP/1.1 200 OK
+        Vary: Accept
+        Content-Type: application/json
+
+        {
+            "id": 1634,
+            "subevent": null,
+            "zone_name": "Ground floor",
+            "row_name": "1",
+            "row_label": null,
+            "seat_number": "2",
+            "seat_label": null,
+            "seat_guid": "1d29fe20-8e1e-4984-b0ee-2773b0d07e07",
+            "product": 104,
+            "blocked": true,
+            "orderposition": {
+                "id": 134,
+                "order": {
+                    "code": "U0HW7",
+                    "event": "sampleconf"
+                },
+                "positionid": 1,
+                "item": 104,
+                "variation": 59,
+                "price": "60.00",
+                "attendee_name": "",
+                "attendee_name_parts": {
+                    "_scheme": "given_family"
+                },
+                "company": null,
+                "street": null,
+                "zipcode": null,
+                "city": null,
+                "country": null,
+                "state": null,
+                "discount": null,
+                "attendee_email": null,
+                "voucher": null,
+                "tax_rate": "0.00",
+                "tax_value": "0.00",
+                "secret": "4rfgp263jduratnsvwvy6cc6r6wnptbj",
+                "addon_to": null,
+                "subevent": null,
+                "checkins": [],
+                "downloads": [],
+                "answers": [],
+                "tax_rule": null,
+                "pseudonymization_id": "ZSNYSG3URZ",
+                "canceled": false,
+                "valid_from": null,
+                "valid_until": null,
+                "blocked": null,
+                "voucher_budget_use": null
+            },
+            "cartposition": null,
+            "voucher": null
+        }
+
+   :param organizer: The ``slug`` field of the organizer to fetch
+   :param event: The ``slug`` field of the event to fetch
+   :param subevent_id: The ``id`` field of the subevent to fetch
+   :param id: The ``id`` field of the seat to fetch
+   :query string expand: If you pass ``"orderposition"``, ``"cartposition"``, or ``"voucher"``, the respective field will be
+                         shown as a nested value instead of just an ID. This requires permission to access that object.
+                         The nested objects are identical to the respective resources, except that order positions
+                         will have an attribute of the format ``"order": {"code": "ABCDE", "event": "eventslug"}`` to make
+                         matching easier, and won't include the `seat` attribute, as that would be redundant.
+                         The parameter can be given multiple times.
+   :statuscode 200: no error
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer does not exist **or** you have no permission to view this resource.
+   :statuscode 404: Seat does not exist; or the endpoint without subevent id was used for event with subevents, or vice versa.
+
+.. http:patch:: /api/v1/organizers/(organizer)/events/(event)/seats/(id)/
+.. http:patch:: /api/v1/organizers/(organizer)/events/(event)/subevents/(id)/seats/(id)/
+
+   Update a seat.
+
+   You can only change the ``blocked`` field.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+        PATCH /api/v1/organizers/bigevents/events/sampleconf/seats/1636/ HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json, text/javascript
+        Content-Type: application/json
+
+        {
+            "blocked": true
+        }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+        HTTP/1.1 200 OK
+        Vary: Accept
+        Content-Type: application/json
+
+        {
+            "id": 1636,
+            "subevent": null,
+            "zone_name": "Ground floor",
+            "row_name": "1",
+            "row_label": null,
+            "seat_number": "4",
+            "seat_label": null,
+            "seat_guid": "6c0e29e5-05d6-421f-99f3-afd01478ecad",
+            "product": 104,
+            "blocked": true,
+            "orderposition": null,
+            "cartposition": null,
+            "voucher": null
+        }
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param subevent_id: The ``id`` field of the subevent to modify
+   :param id: The ``id`` field of the seat to modify
+   :statuscode 200: no error
+   :statuscode 400: The seat could not be modified due to invalid submitted data
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer or event does not exist **or** you have no permission to change this resource.
+   :statuscode 404: Seat does not exist; or the endpoint without subevent id was used for event with subevents, or vice versa.
+
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/seats/bulk_block/
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/subevents/(id)/seats/bulk_block/
+
+   Set the ``blocked`` attribute to ``true`` for a large number of seats at once.
+   You can pass either a list of ``id`` values or a list of ``seat_guid`` values.
+   You can pass up to 10,000 seats in one request.
+
+   The endpoint will return an error if you pass a seat ID that does not exist.
+   However, it will not return an error if one of the passed seats is already blocked or sold.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+        PATCH /api/v1/organizers/bigevents/events/sampleconf/seats/bulk_block/ HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json, text/javascript
+        Content-Type: application/json
+
+        {
+            "ids": [12, 45, 56]
+        }
+
+   or
+
+   .. sourcecode:: http
+
+        PATCH /api/v1/organizers/bigevents/events/sampleconf/seats/bulk_block/ HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json, text/javascript
+        Content-Type: application/json
+
+        {
+            "seat_guids": ["6c0e29e5-05d6-421f-99f3-afd01478ecad", "c2899340-e2e7-4d05-8100-000a4b6d7cf4"]
+        }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+        HTTP/1.1 200 OK
+        Vary: Accept
+        Content-Type: application/json
+
+        {}
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param subevent_id: The ``id`` field of the subevent to modify
+   :statuscode 200: no error
+   :statuscode 400: The seat could not be modified due to invalid submitted data
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer or event does not exist **or** you have no permission to change this resource.
+   :statuscode 404: Seat does not exist; or the endpoint without subevent id was used for event with subevents, or vice versa.
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/seats/bulk_unblock/
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/subevents/(id)/seats/bulk_unblock/
+
+   Set the ``blocked`` attribute to ``false`` for a large number of seats at once.
+   You can pass either a list of ``id`` values or a list of ``seat_guid`` values.
+   You can pass up to 10,000 seats in one request.
+
+   The endpoint will return an error if you pass a seat ID that does not exist.
+   However, it will not return an error if one of the passed seat is already unblocked or is sold.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+        PATCH /api/v1/organizers/bigevents/events/sampleconf/seats/bulk_unblock/ HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json, text/javascript
+        Content-Type: application/json
+
+        {
+            "ids": [12, 45, 56]
+        }
+
+   or
+
+   .. sourcecode:: http
+
+        PATCH /api/v1/organizers/bigevents/events/sampleconf/seats/bulk_unblock/ HTTP/1.1
+        Host: pretix.eu
+        Accept: application/json, text/javascript
+        Content-Type: application/json
+
+        {
+            "seat_guids": ["6c0e29e5-05d6-421f-99f3-afd01478ecad", "c2899340-e2e7-4d05-8100-000a4b6d7cf4"]
+        }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+        HTTP/1.1 200 OK
+        Vary: Accept
+        Content-Type: application/json
+
+        {}
+
+   :param organizer: The ``slug`` field of the organizer to modify
+   :param event: The ``slug`` field of the event to modify
+   :param subevent_id: The ``id`` field of the subevent to modify
+   :statuscode 200: no error
+   :statuscode 400: The seat could not be modified due to invalid submitted data
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer or event does not exist **or** you have no permission to change this resource.
+   :statuscode 404: Seat does not exist; or the endpoint without subevent id was used for event with subevents, or vice versa.

doc/api/resources/sendmail_rules.rst

@@ -1,6 +1,8 @@
 Scheduled email rules
 =====================
 
+This feature requires the bundled ``pretix.plugins.sendmail`` plugin to be active for the event in order to work properly.
+
 Resource description
 --------------------
 
@@ -48,6 +50,7 @@ send_to                               string                     Can be ``"order
                                                                  or ``"both"``.
                                                                  date. Otherwise it is relative to the event start date.
 ===================================== ========================== =======================================================
+
 .. versionchanged:: 2023.7
 
     The ``include_pending`` field has been  deprecated.

doc/api/resources/subevents.rst

@@ -136,6 +136,7 @@ Endpoints
       }
 
    :query page: The page number in case of a multi-page result set, default is 1
+   :query is_public: If set to ``true``/``false``, only subevents with a matching value of ``is_public`` are returned.
    :query active: If set to ``true``/``false``, only events with a matching value of ``active`` are returned.
    :query is_future: If set to ``true`` (``false``), only events that happen currently or in the future are (not) returned.
    :query is_past: If set to ``true`` (``false``), only events that are over are (not) returned.
@@ -467,6 +468,7 @@ Endpoints
       }
 
    :query page: The page number in case of a multi-page result set, default is 1
+   :query is_public: If set to ``true``/``false``, only subevents with a matching value of ``is_public`` are returned.
    :query active: If set to ``true``/``false``, only events with a matching value of ``active`` are returned.
    :query event__live: If set to ``true``/``false``, only events with a matching value of ``live`` on the parent event are returned.
    :query is_future: If set to ``true`` (``false``), only events that happen currently or in the future are (not) returned.

doc/api/resources/taxrules.rst

@@ -1,3 +1,8 @@
+.. spelling:word-list::
+
+   EN16931
+   DSFinV-K
+
 .. _rest-taxrules:
 
 Tax rules
@@ -18,10 +23,12 @@ id                                    integer                    Internal ID of
 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
+code                                  string                     Codified reason for tax rate (or ``null``), see :ref:`rest-taxcodes`.
 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. Will
-                                                                 be ignored if custom rules are set.
+eu_reverse_charge                     boolean                    **DEPRECATED**. If ``true``, EU reverse charge rules
+                                                                 are applied. Will be ignored if custom rules are set.
+                                                                 Use custom rules instead.
 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
@@ -41,6 +48,42 @@ custom_rules                          object                     Dynamic rules s
 
     The ``custom_rules`` attribute has been added.
 
+.. versionchanged:: 2023.8
+
+    The ``code`` attribute has been added.
+
+.. _rest-taxcodes:
+
+Tax codes
+---------
+
+For integration with external systems, such as electronic invoicing or bookkeeping systems, the tax rate itself is often
+not sufficient information. For example, there could be many different reasons why a sale has a tax rate of 0 %, but the
+external handling of the transaction depends on which reason applies. Therefore, pretix allows to supply a codified
+reason that allows us to understand what the specific legal situation is. These tax codes are modeled after a combination
+of the code lists from the European standard EN16931 and the German standard DSFinV-K.
+
+The following codes are supported:
+
+- ``S/standard`` -- Standard VAT rate in the merchant country
+- ``S/reduced`` -- Reduced VAT rate in the merchant country
+- ``S/averaged`` -- Averaged VAT rate in the merchant country (known use case: agricultural businesses in Germany)
+- ``AE`` -- Reverse charge
+- ``O`` -- Services outside of scope of tax
+- ``E`` -- Exempt from tax (no reason given)
+- ``E/<reason>`` -- Exempt from tax, where ``<reason>`` is one of the codes listed in the `VATEX code list`_ version 5.0.
+- ``Z`` -- Zero-rated goods
+- ``G`` -- Free export item, VAT not charged
+- ``K`` -- VAT exempt for EEA intra-community supply of goods and services
+- ``L`` -- Canary Islands general indirect tax
+- ``M`` -- Tax for production, services and importation in Ceuta and Melilla
+- ``B`` -- Transferred (VAT), only in Italy
+
+The code set in the ``code`` attribute of the tax rule is used by default. When ``eu_reverse_charge`` is active, the
+code is replaced by ``AE`` for reverse charge sales and by ``O`` for non-EU sales. When configuring custom rules, you
+should actively set a ``"code"`` key on each rule. Only for ``"action": "reverse"`` we automatically apply the code
+``AE``, in all other cases the default ``code`` of the tax rule is selected.
+
 Endpoints
 ---------
 
@@ -73,6 +116,7 @@ Endpoints
             "id": 1,
             "name": {"en": "VAT"},
             "internal_name": "VAT",
+            "code": "S/standard",
             "rate": "19.00",
             "price_includes_tax": true,
             "eu_reverse_charge": false,
@@ -114,6 +158,7 @@ Endpoints
         "id": 1,
         "name": {"en": "VAT"},
         "internal_name": "VAT",
+        "code": "S/standard",
         "rate": "19.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
@@ -163,6 +208,7 @@ Endpoints
         "id": 1,
         "name": {"en": "VAT"},
         "internal_name": "VAT",
+        "code": "S/standard",
         "rate": "19.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
@@ -211,6 +257,7 @@ Endpoints
         "id": 1,
         "name": {"en": "VAT"},
         "internal_name": "VAT",
+        "code": "S/standard",
         "rate": "20.00",
         "price_includes_tax": true,
         "eu_reverse_charge": false,
@@ -257,3 +304,4 @@ Endpoints
    :statuscode 403: The requested organizer/event/rule does not exist **or** you have no permission to change it **or** this tax rule cannot be deleted since it is currently in use.
 
 .. _here: https://github.com/pretix/pretix/blob/master/src/pretix/static/schema/tax-rules-custom.schema.json
+.. _VATEX code list: https://ec.europa.eu/digital-building-blocks/sites/display/DIGITAL/Registry+of+supporting+artefacts+to+implement+EN16931#RegistryofsupportingartefactstoimplementEN16931-Codelists

doc/api/resources/webhooks.rst

@@ -116,6 +116,7 @@ Endpoints
       }
 
    :query integer page: The page number in case of a multi-page result set, default is 1
+   :query boolean enabled: Only show webhooks that are or are not enabled
    :param organizer: The ``slug`` field of the organizer to fetch
    :statuscode 200: no error
    :statuscode 401: Authentication failure

doc/development/api/cookieconsent.rst

@@ -17,6 +17,7 @@ First, you need to declare that you are using non-essential cookies by respondin
 signal:
 
 .. automodule:: pretix.presale.signals
+   :no-index:
    :members: register_cookie_providers
 
 You are expected to return a list of ``CookieProvider`` objects instantiated from the following class:

doc/development/api/general.rst

@@ -14,7 +14,7 @@ Core
    :members: periodic_task, event_live_issues, event_copy_data, email_filter, register_notification_types, notification,
       item_copy_data, register_sales_channel_types, register_global_settings, quota_availability, global_email_filter,
       register_ticket_secret_generators, gift_card_transaction_display,
-      register_text_placeholders, register_mail_placeholders
+      register_text_placeholders, register_mail_placeholders, device_info_updated
 
 Order events
 """"""""""""
@@ -22,12 +22,14 @@ Order events
 There are multiple signals that will be sent out in the ordering cycle:
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: validate_cart, validate_cart_addons, validate_order, order_valid_if_pending, order_fee_calculation, order_paid, order_placed, order_canceled, order_reactivated, order_expired, order_modified, order_changed, order_approved, order_denied, order_fee_type_name, allow_ticket_download, order_split, order_gracefully_delete, invoice_line_text
 
 Check-ins
 """""""""
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: checkin_created
 
 
@@ -39,18 +41,21 @@ Frontend
 
 
 .. automodule:: pretix.presale.signals
+   :no-index:
    :members: order_info, order_info_top, order_meta_from_request, order_api_meta_from_request
 
 Request flow
 """"""""""""
 
 .. automodule:: pretix.presale.signals
+   :no-index:
    :members: process_request, process_response
 
 Vouchers
 """"""""
 
 .. automodule:: pretix.presale.signals
+   :no-index:
    :members: voucher_redeem_info
 
 Backend
@@ -62,24 +67,28 @@ Backend
              item_formsets, order_search_filter_q, order_search_forms
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: logentry_display, logentry_object_link, requiredaction_display, timeline_events, orderposition_blocked_display, customer_created, customer_signed_in
 
 Vouchers
 """"""""
 
 .. automodule:: pretix.control.signals
+   :no-index:
    :members: item_forms, voucher_form_class, voucher_form_html, voucher_form_validation
 
 Dashboards
 """"""""""
 
 .. automodule:: pretix.control.signals
+   :no-index:
    :members: event_dashboard_widgets, user_dashboard_widgets, event_dashboard_top
 
 Ticket designs
 """"""""""""""
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: layout_text_variables, layout_image_variables
 
 .. automodule:: pretix.plugins.ticketoutputpdf.signals
@@ -89,4 +98,9 @@ API
 ---
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: validate_event_settings, api_event_settings_fields
+
+.. automodule:: pretix.api.signals
+   :no-index:
+   :members: register_device_security_profile

doc/development/api/import.rst

@@ -60,6 +60,7 @@ that we'll provide in this plugin:
 Similar signals exist for other objects:
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: voucher_import_columns
 
 

doc/development/api/invoice.rst

@@ -84,8 +84,6 @@ convenient to you:
 
    .. automethod:: _register_fonts
 
-   .. automethod:: _register_event_fonts
-
    .. automethod:: _on_first_page
 
    .. automethod:: _on_other_page

doc/development/api/placeholder.rst

@@ -86,7 +86,10 @@ Signals
 -------
 
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: register_text_placeholders
+
 .. automodule:: pretix.base.signals
+   :no-index:
    :members: register_mail_placeholders
 

doc/development/api/plugins.rst

@@ -121,6 +121,7 @@ This will automatically make pretix discover this plugin as soon as it is instal
 through ``pip``. During development, you can just run ``python setup.py develop`` inside
 your plugin source directory to make it discoverable.
 
+.. _`signals`:
 Signals
 -------
 
@@ -153,6 +154,25 @@ in the ``installed`` method:
 Note that ``installed`` will *not* be called if the plugin is indirectly activated for an event
 because the event is created with settings copied from another event.
 
+.. _`registries`:
+Registries
+----------
+
+Many signals in pretix are used so that plugins can "register" a class, e.g. a payment provider or a
+ticket renderer.
+
+However, for some of them (types of :ref:`Log Entries <logging>`) we use a different method to keep track of them:
+In a ``Registry``, classes are collected at application startup, along with a unique key (in case
+of LogEntryType, the ``action_type``) as well as which plugin registered them.
+
+To register a class, you can use one of several decorators provided by the Registry object:
+
+.. autoclass:: pretix.base.logentrytypes.LogEntryTypeRegistry
+   :members: register, new, new_from_dict
+
+All files in which classes are registered need to be imported in the ``AppConfig.ready`` as explained
+in `Signals <signals>`_ above.
+
 Views
 -----
 

doc/development/implementation/logging.rst

@@ -20,7 +20,8 @@ To actually log an action, you can just call the ``log_action`` method on your o
 
 .. code-block:: python
 
-   order.log_action('pretix.event.order.canceled', user=user, data={})
+   order.log_action('pretix.event.order.comment', user=user,
+                    data={"new_comment": "Hello, world."})
 
 The positional ``action`` argument should represent the type of action and should be globally unique, we
 recommend to prefix it with your package name, e.g. ``paypal.payment.rejected``. The ``user`` argument is
@@ -72,24 +73,101 @@ following ready-to-include template::
    {% include "pretixcontrol/includes/logs.html" with obj=order %}
 
 We now need a way to translate the action codes like ``pretix.event.changed`` into human-readable
-strings. The :py:attr:`pretix.base.signals.logentry_display` signals allows you to do so. A simple
+strings. The :py:attr:`pretix.base.logentrytypes.log_entry_types` :ref:`registry <registries>` allows you to do so. A simple
 implementation could look like:
 
 .. code-block:: python
 
     from django.utils.translation import gettext as _
-    from pretix.base.signals import logentry_display
+    from pretix.base.logentrytypes import log_entry_types
+
+
+    @log_entry_types.new_from_dict({
+        'pretix.event.order.comment': _('The order\'s internal comment has been updated to: {new_comment}'),
+        'pretix.event.order.paid': _('The order has been marked as paid.'),
+        # ...
+    })
+    class CoreOrderLogEntryType(OrderLogEntryType):
+        pass
+
+Please note that you always need to define your own inherited ``LogEntryType`` class in your plugin. If you would just
+register an instance of a ``LogEntryType`` class defined in pretix core, it cannot be automatically detected as belonging
+to your plugin, leading to confusing user interface situations.
+
+
+Customizing log entry display
+"""""""""""""""""""""""""""""
+
+The base ``LogEntryType`` classes allow for varying degree of customization in their descendants.
+
+If you want to add another log message for an existing core object (e.g. an :class:`Order <pretix.base.models.Order>`,
+:class:`Item <pretix.base.models.Item>`, or :class:`Voucher <pretix.base.models.Voucher>`), you can inherit
+from its predefined :class:`LogEntryType <pretix.base.logentrytypes.LogEntryType>`, e.g.
+:class:`OrderLogEntryType <pretix.base.logentrytypes.OrderLogEntryType>`, and just specify a new plaintext string.
+You can use format strings to insert information from the LogEntry's `data` object as shown in the section above.
+
+If you define a new model object in your plugin, you should make sure proper object links in the user interface are
+displayed for it. If your model object belongs logically to a pretix :class:`Event <pretix.base.models.Event>`, you can inherit from :class:`EventLogEntryType <pretix.base.logentrytypes.EventLogEntryType>`,
+and set the ``object_link_*`` fields accordingly. ``object_link_viewname`` refers to a django url name, which needs to
+accept the arguments `organizer` and `event`, containing the respective slugs, and additional arguments provided by
+``object_link_args``. The default implementation of ``object_link_args`` will return an argument named by
+````object_link_argname``, with a value of ``content_object.pk`` (the primary key of the model object).
+If you want to customize the name displayed for the object (instead of the result of calling ``str()`` on it),
+overwrite ``object_link_display_name``.
+
+
+.. code-block:: python
+
+    class ItemLogEntryType(EventLogEntryType):
+        object_link_wrapper = _('Product {val}')
+
+        # link will be generated as reverse('control:event.item', {'organizer': ..., 'event': ..., 'item': item.pk})
+        object_link_viewname = 'control:event.item'
+        object_link_argname = 'item'
+
+
+.. code-block:: python
+
+    class OrderLogEntryType(EventLogEntryType):
+        object_link_wrapper = _('Order {val}')
+
+        # link will be generated as reverse('control:event.order', {'organizer': ..., 'event': ..., 'code': order.code})
+        object_link_viewname = 'control:event.order'
+
+        def object_link_args(self, order):
+            return {'code': order.code}
+
+        def object_link_display_name(self, order):
+            return order.code
+
+To show more sophisticated message strings, e.g. varying the message depending on information from the :class:`LogEntry <pretix.base.models.log.LogEntry>`'s
+`data` object, override the `display` method:
+
+.. code-block:: python
+
+    @log_entry_types.new()
+    class PaypalEventLogEntryType(EventLogEntryType):
+        action_type = 'pretix.plugins.paypal.event'
+
+        def display(self, logentry):
+            event_type = logentry.parsed_data.get('event_type')
+            text = {
+                'PAYMENT.SALE.COMPLETED': _('Payment completed.'),
+                'PAYMENT.SALE.DENIED': _('Payment denied.'),
+                # ...
+            }.get(event_type, f"({event_type})")
+            return _('PayPal reported an event: {}').format(text)
+
+.. automethod:: pretix.base.logentrytypes.LogEntryType.display
+
+If your new model object does not belong to an :class:`Event <pretix.base.models.Event>`, you need to inherit directly from ``LogEntryType`` instead
+of ``EventLogEntryType``, providing your own implementation of ``get_object_link_info`` if object links should be
+displayed.
+
+.. autoclass:: pretix.base.logentrytypes.LogEntryType
+   :members: get_object_link_info
+
 
-    @receiver(signal=logentry_display)
-    def pretixcontrol_logentry_display(sender, logentry, **kwargs):
-        plains = {
-            'pretix.event.order.paid': _('The order has been marked as paid.'),
-            'pretix.event.order.refunded': _('The order has been refunded.'),
-            'pretix.event.order.canceled': _('The order has been canceled.'),
-            ...
-        }
-        if logentry.action_type in plains:
-            return plains[logentry.action_type]
 
 Sending notifications
 ---------------------

doc/development/setup.rst

@@ -136,9 +136,7 @@ It is a good idea to put this command into your git hook ``.git/hooks/pre-commit
 for example, to check for any errors in any staged files when committing::
 
     #!/bin/bash
-    cd $GIT_DIR/../src
-    export GIT_WORK_TREE=../
-    export GIT_DIR=../.git
+
     source ../env/bin/activate  # Adjust to however you activate your virtual environment
     for file in $(git diff --cached --name-only | grep -E '\.py$' | grep -Ev "migrations|mt940\.py|pretix/settings\.py|make_testdata\.py|testutils/settings\.py|tests/settings\.py|pretix/base/models/__init__\.py|.*_pb2\.py")
     do

doc/plugins/kulturpass.rst

@@ -1,5 +1,5 @@
 KulturPass
-=========
+==========
 
 .. note::
 

doc/plugins/presale-saml.rst

@@ -158,7 +158,7 @@ expects and - more importantly - supports.
     for a sample configuration in an academic context.
 
     Note, that you can have multiple attributes with the same ``friendlyName``
-    but different ``name``s. This is often used in systems, where the same
+    but different ``name`` value. This is often used in systems, where the same
     information (for example a persons name) is saved in different fields -
     for example because one institution is returning SAML 1.0 and other
     institutions are returning SAML 2.0 style attributes. Typically, this only

doc/plugins/ticketoutputpdf.rst

@@ -29,8 +29,8 @@ item_assignments                      list of objects            Products this l
 ===================================== ========================== =======================================================
 
 
-Endpoints
----------
+Layout endpoints
+----------------
 
 .. http:get:: /api/v1/organizers/(organizer)/events/(event)/ticketlayouts/
 
@@ -268,5 +268,75 @@ Endpoints
    :statuscode 401: Authentication failure
    :statuscode 403: The requested organizer/event does not exist **or** you have no permission to delete this resource.
 
+Ticket rendering endpoint
+-----------------------------
+
+.. http:post:: /api/v1/organizers/(organizer)/events/(event)/ticketpdfrenderer/render_batch/
+
+   With this API call, you can instruct the system to render a set of tickets into one combined PDF file. To specify
+   which tickets to render, you need to submit a list of "parts". For every part, the following fields are supported:
+
+   * ``orderposition`` (``integer``, required): The ID of the order position to render.
+   * ``override_channel`` (``string``, optional): The sales channel ID to be used for layout selection instead of the
+     original channel of the order.
+   * ``override_layout`` (``integer``, optional): The ticket layout ID to be used instead of the auto-selected one.
+
+   If your input parameters validate correctly, a ``202 Accepted`` status code is returned.
+   The body points you to the download URL of the result. Running a ``GET`` request on that result URL will
+   yield one of the following status codes:
+
+    * ``200 OK`` – The export succeeded. The body will be your resulting file. Might be large!
+    * ``409 Conflict`` – Your export is still running. The body will be JSON with the structure ``{"status": "running"}``. ``status`` can be ``waiting`` before the task is actually being processed. Please retry, but wait at least one second before you do.
+    * ``410 Gone`` – Running the export has failed permanently. The body will be JSON with the structure ``{"status": "failed", "message": "Error message"}``
+    * ``404 Not Found`` – The export does not exist / is expired.
+
+   .. warning:: This endpoint is considered **experimental**. It might change at any time without prior notice.
+
+   .. note:: To avoid performance issues, a maximum number of 1000 parts is currently allowed.
+
+   **Example request**:
+
+   .. sourcecode:: http
+
+      POST /api/v1/organizers/bigevents/events/sampleconf/ticketpdfrenderer/render_batch/ HTTP/1.1
+      Host: pretix.eu
+      Accept: application/json, text/javascript
+      Content-Type: application/json
+
+      {
+        "parts": [
+          {
+            "orderposition": 55412
+          },
+          {
+            "orderposition": 55412,
+            "override_channel": "web"
+          },
+          {
+            "orderposition": 55412,
+            "override_layout": 56
+          }
+        ]
+      }
+
+   **Example response**:
+
+   .. sourcecode:: http
+
+      HTTP/1.1 200 OK
+      Vary: Accept
+      Content-Type: application/json
+
+      {
+        "download": "https://pretix.eu/api/v1/organizers/bigevents/events/sampleconf/ticketpdfrenderer/download/29891ede-196f-4942-9e26-d055a36e98b8/3f279f13-c198-4137-b49b-9b360ce9fcce/"
+      }
+
+   :param organizer: The ``slug`` field of the organizer to fetch
+   :param event: The ``slug`` field of the event to fetch
+   :statuscode 202: no error
+   :statuscode 400: Invalid input options
+   :statuscode 401: Authentication failure
+   :statuscode 403: The requested organizer/event does not exist **or** you have no permission to view this resource.
+
 
 .. _here: https://github.com/pretix/pretix/blob/master/src/pretix/static/schema/pdf-layout.schema.json

doc/requirements.rtd.txt

@@ -6,5 +6,4 @@ sphinxcontrib-images
 sphinxcontrib-jquery
 sphinxcontrib-spelling==8.*
 sphinxemoji
-pygments-markdown-lexer
 pyenchant==3.2.*

doc/requirements.txt

@@ -7,5 +7,4 @@ sphinxcontrib-images
 sphinxcontrib-jquery
 sphinxcontrib-spelling==8.*
 sphinxemoji
-pygments-markdown-lexer
 pyenchant==3.2.*

doc/user/android-version-support.rst

@@ -31,8 +31,7 @@ Android 9                   Support planned until at least 12/2025.
 Android 8                   Support planned until at least 12/2025.
 Android 7                   Support planned until at least 06/2025.
 Android 6                   Support planned until at least 06/2025.
-Android 5                   | Support planned until at least 06/2025.
-                            | No support for COVID certificate verification.
+Android 5                   Support planned until at least 06/2025.
 Android 4                   Support dropped.
 =========================== ==========================================================
 
@@ -57,16 +56,17 @@ Android 8                   | Support planned until at least 12/2025.
 Android 7                   | Support planned until at least 12/2024.
                             | Support for Stripe Terminal to be dropped 05/2024.
                             | No support for Cryptovision TSE.
+                            | No support for SumUp.
 Android 6                   | Support planned until at least 12/2024.
                             | No support for Cryptovision TSE.
                             | No support for Fiskal Cloud.
                             | No support for Stripe Terminal.
+                            | No support for SumUp.
 Android 5                   | Support planned until at least 12/2024.
                             | No support for Cryptovision TSE.
                             | No support for Fiskal Cloud.
                             | No support for Stripe Terminal.
                             | No support for SumUp.
-                            | No support for COVID certificate verification.
 Android 4                   Support dropped.
 =========================== ==========================================================
 
@@ -87,9 +87,6 @@ Android 7                   Support planned until at least 06/2025.
 Android 6                   Support planned until at least 06/2025.
 Android 5                   | Support planned until at least 06/2025.
                             | No support for Evolis printers on some devices.
-Android 4.4                 | Support planned until at least 06/2024.
-                            | No support for USB printers.
-                            | No support for Evolis printers.
 Android 4                   Support dropped.
 =========================== ==========================================================
 

doc/user/customers/index.rst

@@ -175,7 +175,7 @@ without any special behavior.
 Connecting SSO providers (pretix as the SSO client)
 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-To connect an external application as a SSO client, go to "Customer accounts" → "SSO providers" → "Create a new SSO provider"
+To connect an external application as a SSO provider, go to "Customer accounts" → "SSO providers" → "Create a new SSO provider"
 in your organizer account.
 
 .. thumbnail:: ../../screens/organizer/customer_ssoprovider_add.png

doc/user/events/widget.rst

@@ -96,6 +96,18 @@ attribute::
    <pretix-widget event="https://pretix.eu/demo/democon/" disable-iframe></pretix-widget>
 
 
+Always show event’s info
+------------------------
+
+If you want the widget to show the event’s info such as title, location and frontpage text, you can pass the optional 
+``display-event-info`` attribute with either a value of ``"false"``, ``"true"`` or ``"auto"`` – the latter being the 
+default if the attribute is not present at all.
+
+Note that any other value than ``"false"`` or ``"auto"`` means ``"true"``::
+
+   <pretix-widget event="https://pretix.eu/demo/democon/" display-event-info></pretix-widget>
+
+
 Pre-selecting a voucher
 -----------------------
 
@@ -450,6 +462,19 @@ Further reading:
 * `Stripe Payment Method Domain registration`_
 
 
+Content Security Policy
+-----------------------
+
+When using a Content Security Policy (CSP) on your website, you may need to make some adjustments. If your pretix
+shop is running under a custom domain, you need to add the following rules:
+
+* ``script-src``: ``'unsafe-eval' https://pretix.eu`` (adjust to your domain for self-hosted pretix)
+* ``style-src``: ``https://pretix.eu`` (adjust to your domain for self-hosted pretix **and** for custom domain on pretix Hosted)
+* ``connect-src``: ``https://pretix.eu`` (adjust to your domain for self-hosted pretix **and** for custom domain on pretix Hosted)
+* ``frame-src``: ``https://pretix.eu`` (adjust to your domain for self-hosted pretix **and** for custom domain on pretix Hosted)
+* ``img-src``: ``https://pretix.eu`` (adjust to your domain for self-hosted pretix **and** for custom domain on pretix Hosted) and for pretix Hosted additionally add ``https://cdn.pretix.space``
+
+
 External payment providers and Cross-Origin-Opener-Policy
 ---------------------------------------------------------
 

pyproject.toml

@@ -22,30 +22,29 @@ classifiers = [
   "Programming Language :: Python :: 3.9",
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
-  "Framework :: Django :: 4.1",
+  "Framework :: Django :: 4.2",
 ]
 
 dependencies = [
   "arabic-reshaper==3.0.0",  # Support for Arabic in reportlab
   "babel",
-  "BeautifulSoup4==4.12.*",
-  "bleach==5.0.*",
+  "BeautifulSoup4==4.13.*",
+  "bleach==6.2.*",
   "celery==5.4.*",
   "chardet==5.2.*",
-  "cryptography>=3.4.2",
+  "cryptography>=44.0.0",
   "css-inline==0.14.*",
   "defusedcsv>=1.1.0",
-  "dj-static",
-  "Django[argon2]==4.2.*",
-  "django-bootstrap3==24.2",
+  "Django[argon2]==4.2.*,>=4.2.15",
+  "django-bootstrap3==24.3",
   "django-compressor==4.5.1",
   "django-countries==7.6.*",
-  "django-filter==24.2",
+  "django-filter==24.3",
   "django-formset-js-improved==0.5.0.3",
   "django-formtools==2.5.1",
   "django-hierarkey==1.2.*",
-  "django-hijack==3.6.*",
-  "django-i18nfield==1.9.*,>=1.9.4",
+  "django-hijack==3.7.*",
+  "django-i18nfield==1.10.*",
   "django-libsass==0.9",
   "django-localflavor==4.0",
   "django-markup",
@@ -54,18 +53,18 @@ dependencies = [
   "django-phonenumber-field==7.3.*",
   "django-redis==5.4.*",
   "django-scopes==2.0.*",
-  "django-statici18n==2.5.*",
+  "django-statici18n==2.6.*",
   "djangorestframework==3.15.*",
-  "dnspython==2.6.*",
+  "dnspython==2.7.*",
   "drf_ujson2==1.7.*",
-  "geoip2==4.*",
+  "geoip2==5.*",
   "importlib_metadata==8.*",  # Polyfill, we can probably drop this once we require Python 3.10+
   "isoweek",
   "jsonschema",
-  "kombu==5.3.*",
+  "kombu==5.4.*",
   "libsass==0.23.*",
   "lxml",
-  "markdown==3.6",  # 3.3.5 requires importlib-metadata>=4.4, but django-bootstrap3 requires importlib-metadata<3.
+  "markdown==3.7",  # 3.3.5 requires importlib-metadata>=4.4, but django-bootstrap3 requires importlib-metadata<3.
   # We can upgrade markdown again once django-bootstrap3 upgrades or once we drop Python 3.6 and 3.7
   "mt-940==4.30.*",
   "oauthlib==3.2.*",
@@ -73,58 +72,55 @@ dependencies = [
   "packaging",
   "paypalrestsdk==1.13.*",
   "paypal-checkout-serversdk==1.0.*",
-  "PyJWT==2.8.*",
+  "PyJWT==2.10.*",
   "phonenumberslite==8.13.*",
-  "Pillow==10.4.*",
+  "Pillow==11.1.*",
   "pretix-plugin-build",
-  "protobuf==5.27.*",
+  "protobuf==5.29.*",
   "psycopg2-binary",
   "pycountry",
   "pycparser==2.22",
-  "pycryptodome==3.20.*",
-  "pypdf==4.3.*",
-  "python-bidi==0.5.*",  # Support for Arabic in reportlab
+  "pycryptodome==3.21.*",
+  "pypdf==5.1.*",
+  "python-bidi==0.6.*",  # Support for Arabic in reportlab
   "python-dateutil==2.9.*",
   "pytz",
   "pytz-deprecation-shim==0.1.*",
   "pyuca",
-  "qrcode==7.4.*",
-  "redis==5.0.*",
-  "reportlab==4.2.*",
+  "qrcode==8.0",
+  "redis==5.2.*",
+  "reportlab==4.3.*",
   "requests==2.31.*",
-  "sentry-sdk==2.10.*",
+  "sentry-sdk==2.20.*",
   "sepaxml==2.6.*",
-  "slimit",
-  "static3==0.7.*",
   "stripe==7.9.*",
   "text-unidecode==1.*",
   "tlds>=2020041600",
   "tqdm==4.*",
-  "ua-parser==0.18.*",
+  "ua-parser==1.0.*",
   "vat_moss_forked==2020.3.20.0.11.0",
   "vobject==0.9.*",
-  "webauthn==2.2.*",
-  "zeep==4.2.*"
+  "webauthn==2.5.*",
+  "zeep==4.3.*"
 ]
 
 [project.optional-dependencies]
 memcached = ["pylibmc"]
 dev = [
-  "aiohttp==3.9.*",
+  "aiohttp==3.11.*",
   "coverage",
   "coveralls",
-  "fakeredis==2.23.*",
+  "fakeredis==2.26.*",
   "flake8==7.1.*",
   "freezegun",
-  "isort==5.13.*",
+  "isort==6.0.*",
   "pep8-naming==0.14.*",
   "potypo",
-  "pytest-asyncio",
+  "pytest-asyncio>=0.24",
   "pytest-cache",
   "pytest-cov",
   "pytest-django==4.*",
   "pytest-mock==3.14.*",
-  "pytest-rerunfailures==14.*",
   "pytest-sugar",
   "pytest-xdist==3.6.*",
   "pytest==8.3.*",

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__ = "2024.7.0.dev0"
+__version__ = "2025.2.0.dev0"

src/pretix/_base_settings.py

@@ -62,6 +62,7 @@ INSTALLED_APPS = [
     'pretix.plugins.badges',
     'pretix.plugins.manualpayment',
     'pretix.plugins.returnurl',
+    'pretix.plugins.autocheckin',
     'pretix.plugins.webcheckin',
     'django_countries',
     'oauth2_provider',
@@ -74,11 +75,20 @@ FORMAT_MODULE_PATH = [
     'pretix.helpers.formats',
 ]
 
+CORE_MODULES = {
+    "pretix.base",
+    "pretix.presale",
+    "pretix.control",
+    "pretix.plugins.checkinlists",
+    "pretix.plugins.reports",
+}
+
 ALL_LANGUAGES = [
     ('en', _('English')),
     ('de', _('German')),
     ('de-informal', _('German (informal)')),
     ('ar', _('Arabic')),
+    ('eu', _('Basque')),
     ('ca', _('Catalan')),
     ('zh-hans', _('Chinese (simplified)')),
     ('zh-hant', _('Chinese (traditional)')),
@@ -92,6 +102,7 @@ ALL_LANGUAGES = [
     ('el', _('Greek')),
     ('id', _('Indonesian')),
     ('it', _('Italian')),
+    ('ja', _('Japanese')),
     ('lv', _('Latvian')),
     ('nb-no', _('Norwegian Bokmål')),
     ('pl', _('Polish')),
@@ -152,6 +163,12 @@ EXTRA_LANG_INFO = {
         'name': 'Portuguese',
         'name_local': 'Português',
     },
+    'nb-no': {
+        'bidi': False,
+        'code': 'nb-no',
+        'name': 'Norwegian Bokmal',
+        'name_local': 'norsk (bokmål)',
+    },
 }
 
 django.conf.locale.LANG_INFO.update(EXTRA_LANG_INFO)
@@ -285,7 +302,7 @@ PILLOW_FORMATS_QUESTIONS_IMAGE = ('PNG', 'GIF', 'JPEG', 'BMP', 'TIFF')
 FILE_UPLOAD_EXTENSIONS_EMAIL_ATTACHMENT = (
     ".png", ".jpg", ".gif", ".jpeg", ".pdf", ".txt", ".docx", ".gif", ".svg",
     ".pptx", ".ppt", ".doc", ".xlsx", ".xls", ".jfif", ".heic", ".heif", ".pages",
-    ".bmp", ".tif", ".tiff"
+    ".bmp", ".tif", ".tiff", ".ics",
 )
 FILE_UPLOAD_EXTENSIONS_OTHER = FILE_UPLOAD_EXTENSIONS_EMAIL_ATTACHMENT
 

src/pretix/api/auth/device.py

@@ -27,7 +27,7 @@ from rest_framework import exceptions
 from rest_framework.authentication import TokenAuthentication
 
 from pretix.api.auth.devicesecurity import (
-    DEVICE_SECURITY_PROFILES, FullAccessSecurityProfile,
+    FullAccessSecurityProfile, get_all_security_profiles,
 )
 from pretix.base.models import Device
 
@@ -58,7 +58,8 @@ class DeviceTokenAuthentication(TokenAuthentication):
     def authenticate(self, request):
         r = super().authenticate(request)
         if r and isinstance(r[1], Device):
-            profile = DEVICE_SECURITY_PROFILES.get(r[1].security_profile, FullAccessSecurityProfile)
+            profiles = get_all_security_profiles()
+            profile = profiles.get(r[1].security_profile, FullAccessSecurityProfile())
             if not profile.is_allowed(request):
                 raise exceptions.PermissionDenied('Request denied by device security profile.')
         return r

src/pretix/api/auth/devicesecurity.py

@@ -20,13 +20,40 @@
 # <https://www.gnu.org/licenses/>.
 #
 import logging
+from collections import OrderedDict
 
+from django.dispatch import receiver
 from django.utils.translation import gettext_lazy as _
 
+from pretix.api.signals import register_device_security_profile
+
 logger = logging.getLogger(__name__)
+_ALL_PROFILES = None
 
 
-class FullAccessSecurityProfile:
+class BaseSecurityProfile:
+    @property
+    def identifier(self) -> str:
+        """
+        Unique identifier for this profile.
+        """
+        raise NotImplementedError()
+
+    @property
+    def verbose_name(self) -> str:
+        """
+        Human-readable name (can be a ``gettext_lazy`` object).
+        """
+        raise NotImplementedError()
+
+    def is_allowed(self, request) -> bool:
+        """
+        Return whether a given request should be allowed.
+        """
+        raise NotImplementedError()
+
+
+class FullAccessSecurityProfile(BaseSecurityProfile):
     identifier = 'full'
     verbose_name = _('Full device access (reading and changing orders and gift cards, reading of products and settings)')
 
@@ -34,7 +61,7 @@ class FullAccessSecurityProfile:
         return True
 
 
-class AllowListSecurityProfile:
+class AllowListSecurityProfile(BaseSecurityProfile):
     allowlist = ()
 
     def is_allowed(self, request):
@@ -77,6 +104,7 @@ class PretixScanSecurityProfile(AllowListSecurityProfile):
         ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:order-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
+        ('POST', 'api-v1:orderposition-printlog'),
         ('GET', 'api-v1:event.settings'),
         ('POST', 'api-v1:upload'),
         ('POST', 'api-v1:checkinrpc.redeem'),
@@ -112,6 +140,7 @@ class PretixScanNoSyncNoSearchSecurityProfile(AllowListSecurityProfile):
         ('GET', 'api-v1:revokedsecrets-list'),
         ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
+        ('POST', 'api-v1:orderposition-printlog'),
         ('GET', 'api-v1:event.settings'),
         ('POST', 'api-v1:upload'),
         ('POST', 'api-v1:checkinrpc.redeem'),
@@ -147,6 +176,7 @@ class PretixScanNoSyncSecurityProfile(AllowListSecurityProfile):
         ('GET', 'api-v1:revokedsecrets-list'),
         ('GET', 'api-v1:blockedsecrets-list'),
         ('GET', 'api-v1:orderposition-pdf_image'),
+        ('POST', 'api-v1:orderposition-printlog'),
         ('GET', 'api-v1:event.settings'),
         ('POST', 'api-v1:upload'),
         ('POST', 'api-v1:checkinrpc.redeem'),
@@ -154,87 +184,28 @@ class PretixScanNoSyncSecurityProfile(AllowListSecurityProfile):
     )
 
 
-class PretixPosSecurityProfile(AllowListSecurityProfile):
-    identifier = 'pretixpos'
-    verbose_name = _('pretixPOS')
-    allowlist = (
-        ('GET', 'api-v1:version'),
-        ('GET', 'api-v1:device.eventselection'),
-        ('GET', 'api-v1:idempotency.query'),
-        ('GET', 'api-v1:device.info'),
-        ('POST', 'api-v1:device.update'),
-        ('POST', 'api-v1:device.revoke'),
-        ('POST', 'api-v1:device.roll'),
-        ('GET', 'api-v1:event-list'),
-        ('GET', 'api-v1:event-detail'),
-        ('GET', 'api-v1:subevent-list'),
-        ('GET', 'api-v1:subevent-detail'),
-        ('GET', 'api-v1:itemcategory-list'),
-        ('GET', 'api-v1:item-list'),
-        ('GET', 'api-v1:question-list'),
-        ('GET', 'api-v1:quota-list'),
-        ('GET', 'api-v1:taxrule-list'),
-        ('GET', 'api-v1:ticketlayout-list'),
-        ('GET', 'api-v1:ticketlayoutitem-list'),
-        ('GET', 'api-v1:badgelayout-list'),
-        ('GET', 'api-v1:badgeitem-list'),
-        ('GET', 'api-v1:voucher-list'),
-        ('GET', 'api-v1:voucher-detail'),
-        ('GET', 'api-v1:order-list'),
-        ('POST', 'api-v1:order-list'),
-        ('GET', 'api-v1:order-detail'),
-        ('DELETE', 'api-v1:orderposition-detail'),
-        ('PATCH', 'api-v1:orderposition-detail'),
-        ('GET', 'api-v1:orderposition-list'),
-        ('GET', 'api-v1:orderposition-answer'),
-        ('GET', 'api-v1:orderposition-pdf_image'),
-        ('POST', 'api-v1:order-mark-canceled'),
-        ('POST', 'api-v1:orderpayment-list'),
-        ('POST', 'api-v1:orderrefund-list'),
-        ('POST', 'api-v1:orderrefund-done'),
-        ('POST', 'api-v1:cartposition-list'),
-        ('POST', 'api-v1:cartposition-bulk-create'),
-        ('GET', 'api-v1:checkinlist-list'),
-        ('POST', 'api-v1:checkinlistpos-redeem'),
-        ('POST', 'plugins:pretix_posbackend:order.posprintlog'),
-        ('POST', 'plugins:pretix_posbackend:order.poslock'),
-        ('DELETE', 'plugins:pretix_posbackend:order.poslock'),
-        ('DELETE', 'api-v1:cartposition-detail'),
-        ('GET', 'api-v1:giftcard-list'),
-        ('POST', 'api-v1:giftcard-transact'),
-        ('PATCH', 'api-v1:giftcard-detail'),
-        ('GET', 'plugins:pretix_posbackend:posclosing-list'),
-        ('POST', 'plugins:pretix_posbackend:posreceipt-list'),
-        ('POST', 'plugins:pretix_posbackend:posclosing-list'),
-        ('POST', 'plugins:pretix_posbackend:posdebugdump-list'),
-        ('POST', 'plugins:pretix_posbackend:posdebuglogentry-list'),
-        ('POST', 'plugins:pretix_posbackend:posdebuglogentry-bulk-create'),
-        ('GET', 'plugins:pretix_posbackend:poscashier-list'),
-        ('POST', 'plugins:pretix_posbackend:stripeterminal.token'),
-        ('POST', 'plugins:pretix_posbackend:stripeterminal.paymentintent'),
-        ('PUT', 'plugins:pretix_posbackend:file.upload'),
-        ('GET', 'api-v1:revokedsecrets-list'),
-        ('GET', 'api-v1:blockedsecrets-list'),
-        ('GET', 'api-v1:event.settings'),
-        ('GET', 'plugins:pretix_seating:event.event'),
-        ('GET', 'plugins:pretix_seating:event.event.subevent'),
-        ('GET', 'plugins:pretix_seating:event.plan'),
-        ('GET', 'plugins:pretix_seating:selection.simple'),
-        ('POST', 'api-v1:upload'),
-        ('POST', 'api-v1:checkinrpc.redeem'),
-        ('GET', 'api-v1:checkinrpc.search'),
-        ('POST', 'api-v1:reusablemedium-lookup'),
-        ('GET', 'api-v1:reusablemedium-list'),
-        ('POST', 'api-v1:reusablemedium-list'),
-    )
+def get_all_security_profiles():
+    global _ALL_PROFILES
+
+    if _ALL_PROFILES:
+        return _ALL_PROFILES
+
+    types = OrderedDict()
+    for recv, ret in register_device_security_profile.send(None):
+        if isinstance(ret, (list, tuple)):
+            for r in ret:
+                types[r.identifier] = r
+        else:
+            types[ret.identifier] = ret
+    _ALL_PROFILES = types
+    return types
 
 
-DEVICE_SECURITY_PROFILES = {
-    k.identifier: k() for k in (
-        FullAccessSecurityProfile,
-        PretixScanSecurityProfile,
-        PretixScanNoSyncSecurityProfile,
-        PretixScanNoSyncNoSearchSecurityProfile,
-        PretixPosSecurityProfile,
+@receiver(register_device_security_profile, dispatch_uid="base_register_default_security_profiles")
+def register_default_webhook_events(sender, **kwargs):
+    return (
+        FullAccessSecurityProfile(),
+        PretixScanSecurityProfile(),
+        PretixScanNoSyncSecurityProfile(),
+        PretixScanNoSyncNoSearchSecurityProfile(),
     )
-}

src/pretix/api/filters.py

@@ -0,0 +1,82 @@
+#
+# 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 forms
+from django.core.exceptions import ValidationError
+from django.db.models import Q
+from django.db.models.constants import LOOKUP_SEP
+from django.forms import MultipleChoiceField
+from django_filters import Filter
+from django_filters.conf import settings
+
+
+class MultipleCharField(forms.CharField):
+    widget = forms.MultipleHiddenInput
+
+    def to_python(self, value):
+        if not value:
+            return []
+        elif not isinstance(value, (list, tuple)):
+            raise ValidationError(
+                MultipleChoiceField.default_error_messages["invalid_list"], code="invalid_list"
+            )
+        return [str(val) for val in value]
+
+
+class MultipleCharFilter(Filter):
+    """
+    This filter performs OR(by default) or AND(using conjoined=True) query
+    on the selected inputs.
+    """
+
+    field_class = MultipleCharField
+
+    def __init__(self, *args, **kwargs):
+        self.conjoined = kwargs.pop("conjoined", False)
+        super().__init__(*args, **kwargs)
+
+    def filter(self, qs, value):
+        if not value:
+            # Even though not a noop, no point filtering if empty.
+            return qs
+
+        if not self.conjoined:
+            q = Q()
+        for v in set(value):
+            predicate = self.get_filter_predicate(v)
+            if self.conjoined:
+                qs = self.get_method(qs)(**predicate)
+            else:
+                q |= Q(**predicate)
+
+        if not self.conjoined:
+            qs = self.get_method(qs)(q)
+
+        return qs.distinct() if self.distinct else qs
+
+    def get_filter_predicate(self, v):
+        name = self.field_name
+        if name and self.lookup_expr != settings.DEFAULT_LOOKUP_EXPR:
+            name = LOOKUP_SEP.join([name, self.lookup_expr])
+        try:
+            return {name: getattr(v, self.field.to_field_name)}
+        except (AttributeError, TypeError):
+            return {name: v}

src/pretix/api/serializers/__init__.py

@@ -88,24 +88,32 @@ class SalesChannelMigrationMixin:
             }
 
             if data.get("all_sales_channels") and set(data["sales_channels"]) != all_channels:
-                raise ValidationError(
-                    "If 'all_sales_channels' is set, the legacy attribute 'sales_channels' must not be set or set to "
-                    "the list of all sales channels."
-                )
+                raise ValidationError({
+                    "limit_sales_channels": [
+                        "If 'all_sales_channels' is set, the legacy attribute 'sales_channels' must not be set or set to "
+                        "the list of all sales channels."
+                    ]
+                })
 
             if data.get("limit_sales_channels") and set(data["sales_channels"]) != set(data["limit_sales_channels"]):
-                raise ValidationError(
-                    "If 'limit_sales_channels' is set, the legacy attribute 'sales_channels' must not be set or set to "
-                    "the same list."
-                )
+                raise ValidationError({
+                    "limit_sales_channels": [
+                        "If 'limit_sales_channels' is set, the legacy attribute 'sales_channels' must not be set or set to "
+                        "the same list."
+                    ]
+                })
 
-            if data["sales_channels"] == all_channels:
+            if set(data["sales_channels"]) == all_channels:
                 data["all_sales_channels"] = True
                 data["limit_sales_channels"] = []
             else:
                 data["all_sales_channels"] = False
                 data["limit_sales_channels"] = data["sales_channels"]
             del data["sales_channels"]
+
+        if data.get("all_sales_channels"):
+            data["limit_sales_channels"] = []
+
         return super().to_internal_value(data)
 
     def to_representation(self, value):

src/pretix/api/serializers/cart.py

@@ -235,7 +235,7 @@ class CartPositionCreateSerializer(BaseCartPositionCreateSerializer):
         return cid
 
     def create(self, validated_data):
-        validated_data.pop('sales_channel')
+        validated_data.pop('sales_channel', None)
         addons_data = validated_data.pop('addons', None)
         bundled_data = validated_data.pop('bundled', None)
 

src/pretix/api/serializers/checkin.py

@@ -26,31 +26,22 @@ from rest_framework.exceptions import ValidationError
 from pretix.api.serializers.event import SubEventSerializer
 from pretix.api.serializers.i18n import I18nAwareModelSerializer
 from pretix.base.media import MEDIA_TYPES
-from pretix.base.models import Checkin, CheckinList, SalesChannel
+from pretix.base.models import Checkin, CheckinList
 
 
 class CheckinListSerializer(I18nAwareModelSerializer):
     checkin_count = serializers.IntegerField(read_only=True)
     position_count = serializers.IntegerField(read_only=True)
-    auto_checkin_sales_channels = serializers.SlugRelatedField(
-        slug_field="identifier",
-        queryset=SalesChannel.objects.none(),
-        required=False,
-        allow_empty=True,
-        many=True,
-    )
 
     class Meta:
         model = CheckinList
         fields = ('id', 'name', 'all_products', 'limit_products', 'subevent', 'checkin_count', 'position_count',
-                  'include_pending', 'auto_checkin_sales_channels', 'allow_multiple_entries', 'allow_entry_after_exit',
+                  'include_pending', 'allow_multiple_entries', 'allow_entry_after_exit',
                   'rules', 'exit_all_at', 'addon_match', 'ignore_in_statistics', 'consider_tickets_used')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
 
-        self.fields['auto_checkin_sales_channels'].child_relation.queryset = self.context['event'].organizer.sales_channels.all()
-
         if 'subevent' in self.context['request'].query_params.getlist('expand'):
             self.fields['subevent'] = SubEventSerializer(read_only=True)
 

src/pretix/api/serializers/event.py

@@ -35,7 +35,7 @@
 import logging
 
 from django.conf import settings
-from django.core.exceptions import ValidationError
+from django.core.exceptions import PermissionDenied
 from django.db import transaction
 from django.utils.crypto import get_random_string
 from django.utils.functional import cached_property
@@ -43,6 +43,7 @@ from django.utils.translation import gettext as _
 from django_countries.serializers import CountryFieldMixin
 from pytz import common_timezones
 from rest_framework import serializers
+from rest_framework.exceptions import ValidationError
 from rest_framework.fields import ChoiceField, Field
 from rest_framework.relations import SlugRelatedField
 
@@ -52,7 +53,8 @@ from pretix.api.serializers import (
 from pretix.api.serializers.i18n import I18nAwareModelSerializer
 from pretix.api.serializers.settings import SettingsSerializer
 from pretix.base.models import (
-    Device, Event, SalesChannel, TaxRule, TeamAPIToken,
+    CartPosition, Device, Event, OrderPosition, SalesChannel, Seat, TaxRule,
+    TeamAPIToken, Voucher,
 )
 from pretix.base.models.event import SubEvent
 from pretix.base.models.items import (
@@ -435,7 +437,8 @@ class CloneEventSerializer(EventSerializer):
         testmode = validated_data.pop('testmode', None)
         has_subevents = validated_data.pop('has_subevents', None)
         tz = validated_data.pop('timezone', None)
-        sales_channels = validated_data.pop('sales_channels', None)
+        all_sales_channels = validated_data.pop('all_sales_channels', None)
+        limit_sales_channels = validated_data.pop('limit_sales_channels', None)
         date_admission = validated_data.pop('date_admission', None)
         new_event = super().create({**validated_data, 'plugins': None})
 
@@ -448,8 +451,9 @@ class CloneEventSerializer(EventSerializer):
             new_event.is_public = is_public
         if testmode is not None:
             new_event.testmode = testmode
-        if sales_channels is not None:
-            new_event.sales_channels = sales_channels
+        if all_sales_channels is not None or limit_sales_channels is not None:
+            new_event.all_sales_channels = all_sales_channels
+            new_event.limit_sales_channels.set(limit_sales_channels)
         if has_subevents is not None:
             new_event.has_subevents = has_subevents
         if has_subevents is not None:
@@ -677,8 +681,8 @@ class TaxRuleSerializer(CountryFieldMixin, I18nAwareModelSerializer):
 
     class Meta:
         model = TaxRule
-        fields = ('id', 'name', 'rate', 'price_includes_tax', 'eu_reverse_charge', 'home_country', 'internal_name',
-                  'keep_gross_if_rate_changes', 'custom_rules')
+        fields = ('id', 'name', 'rate', 'code', 'price_includes_tax', 'eu_reverse_charge', 'home_country',
+                  'internal_name', 'keep_gross_if_rate_changes', 'custom_rules')
 
 
 class EventSettingsSerializer(SettingsSerializer):
@@ -771,6 +775,7 @@ class EventSettingsSerializer(SettingsSerializer):
         'invoice_address_company_required',
         'invoice_address_beneficiary',
         'invoice_address_custom_field',
+        'invoice_address_custom_field_helptext',
         'invoice_name_required',
         'invoice_address_not_asked_free',
         'invoice_show_payments',
@@ -844,6 +849,7 @@ class EventSettingsSerializer(SettingsSerializer):
         'reusable_media_type_nfc_mf0aes_autocreate_giftcard',
         'reusable_media_type_nfc_mf0aes_autocreate_giftcard_currency',
         'reusable_media_type_nfc_mf0aes_random_uid',
+        'seating_allow_blocked_seats_for_channel',
     ]
     readonly_fields = [
         # These are read-only since they are currently only settable on organizers, not events
@@ -894,6 +900,7 @@ class DeviceEventSettingsSerializer(EventSettingsSerializer):
         'locale',
         'last_order_modification_date',
         'show_quota_left',
+        'show_dates_on_frontpage',
         'max_items_per_order',
         'attendee_names_asked',
         'attendee_names_required',
@@ -913,6 +920,7 @@ class DeviceEventSettingsSerializer(EventSettingsSerializer):
         'invoice_address_company_required',
         'invoice_address_beneficiary',
         'invoice_address_custom_field',
+        'invoice_address_custom_field_helptext',
         'invoice_name_required',
         'invoice_address_not_asked_free',
         'invoice_address_from_name',
@@ -969,3 +977,111 @@ class ItemMetaPropertiesSerializer(I18nAwareModelSerializer):
     class Meta:
         model = ItemMetaProperty
         fields = ('id', 'name', 'default', 'required', 'allowed_values')
+
+
+def prefetch_by_id(items, qs, id_attr, target_attr):
+    """
+    Prefetches a related object on each item in the given list of items by searching by id or another
+    unique field. The id value is read from the attribute on item specified in `id_attr`, searched on queryset `qs` by
+    the primary key, and the resulting prefetched model object is stored into `target_attr` on the item.
+    """
+    ids = [getattr(item, id_attr) for item in items if getattr(item, id_attr)]
+    if ids:
+        result = qs.in_bulk(id_list=ids)
+        for item in items:
+            setattr(item, target_attr, result.get(getattr(item, id_attr)))
+
+
+class SeatBulkBlockInputSerializer(serializers.Serializer):
+    ids = serializers.ListField(child=serializers.IntegerField(), required=False, allow_empty=True)
+    seat_guids = serializers.ListField(child=serializers.CharField(), required=False, allow_empty=True)
+
+    def to_internal_value(self, data):
+        data = super().to_internal_value(data)
+
+        if data.get("seat_guids") and data.get("ids"):
+            raise ValidationError("Please pass either seat_guids or ids.")
+
+        if data.get("seat_guids"):
+            seat_ids = data["seat_guids"]
+            if len(seat_ids) > 10000:
+                raise ValidationError({"seat_guids": ["Please do not pass over 10000 seats."]})
+
+            seats = {s.seat_guid: s for s in self.context["queryset"].filter(seat_guid__in=seat_ids)}
+            for s in seat_ids:
+                if s not in seats:
+                    raise ValidationError({"seat_guids": [f"The seat '{s}' does not exist."]})
+        elif data.get("ids"):
+            seat_ids = data["ids"]
+            if len(seat_ids) > 10000:
+                raise ValidationError({"ids": ["Please do not pass over 10000 seats."]})
+
+            seats = self.context["queryset"].in_bulk(seat_ids)
+            for s in seat_ids:
+                if s not in seats:
+                    raise ValidationError({"ids": [f"The seat '{s}' does not exist."]})
+        else:
+            raise ValidationError("Please pass either seat_guids or ids.")
+
+        return {"seats": seats.values()}
+
+
+class SeatSerializer(I18nAwareModelSerializer):
+    orderposition = serializers.IntegerField(source='orderposition_id')
+    cartposition = serializers.IntegerField(source='cartposition_id')
+    voucher = serializers.IntegerField(source='voucher_id')
+
+    class Meta:
+        model = Seat
+        read_only_fields = (
+            'id', 'subevent', 'zone_name', 'row_name', 'row_label',
+            'seat_number', 'seat_label', 'seat_guid', 'product',
+            'orderposition', 'cartposition', 'voucher',
+        )
+        fields = (
+            'id', 'subevent', 'zone_name', 'row_name', 'row_label',
+            'seat_number', 'seat_label', 'seat_guid', 'product', 'blocked',
+            'orderposition', 'cartposition', 'voucher',
+        )
+
+    def prefetch_expanded_data(self, items, request, expand_fields):
+        if 'orderposition' in expand_fields:
+            if 'can_view_orders' not in request.eventpermset:
+                raise PermissionDenied('can_view_orders permission required for expand=orderposition')
+            prefetch_by_id(items, OrderPosition.objects.prefetch_related('order'), 'orderposition_id', 'orderposition')
+        if 'cartposition' in expand_fields:
+            if 'can_view_orders' not in request.eventpermset:
+                raise PermissionDenied('can_view_orders permission required for expand=cartposition')
+            prefetch_by_id(items, CartPosition.objects, 'cartposition_id', 'cartposition')
+        if 'voucher' in expand_fields:
+            if 'can_view_vouchers' not in request.eventpermset:
+                raise PermissionDenied('can_view_vouchers permission required for expand=voucher')
+            prefetch_by_id(items, Voucher.objects, 'voucher_id', 'voucher')
+
+    def __init__(self, instance, *args, **kwargs):
+        if not kwargs.get('data'):
+            self.prefetch_expanded_data(instance if hasattr(instance, '__iter__') else [instance],
+                                        kwargs['context']['request'],
+                                        kwargs['context']['expand_fields'])
+
+        super().__init__(instance, *args, **kwargs)
+
+        if 'orderposition' in self.context['expand_fields']:
+            from pretix.api.serializers.media import (
+                NestedOrderPositionSerializer,
+            )
+            self.fields['orderposition'] = NestedOrderPositionSerializer(read_only=True, context=self.context['order_context'])
+            try:
+                del self.fields['orderposition'].fields['seat']
+            except KeyError:
+                pass
+
+        if 'cartposition' in self.context['expand_fields']:
+            from pretix.api.serializers.cart import CartPositionSerializer
+            self.fields['cartposition'] = CartPositionSerializer(read_only=True)
+            del self.fields['cartposition'].fields['seat']
+
+        if 'voucher' in self.context['expand_fields']:
+            from pretix.api.serializers.voucher import VoucherSerializer
+            self.fields['voucher'] = VoucherSerializer(read_only=True)
+            del self.fields['voucher'].fields['seat']

src/pretix/api/serializers/i18n.py

@@ -19,57 +19,8 @@
 # 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.conf import settings
 from django.core.validators import URLValidator
-from i18nfield.fields import I18nCharField, I18nTextField
-from i18nfield.strings import LazyI18nString
-from rest_framework.exceptions import ValidationError
-from rest_framework.fields import Field
-from rest_framework.serializers import ModelSerializer
-
-
-class I18nField(Field):
-    def __init__(self, **kwargs):
-        self.allow_blank = kwargs.pop('allow_blank', False)
-        self.trim_whitespace = kwargs.pop('trim_whitespace', True)
-        self.max_length = kwargs.pop('max_length', None)
-        self.min_length = kwargs.pop('min_length', None)
-        super().__init__(**kwargs)
-
-    def to_representation(self, value):
-        if hasattr(value, 'data'):
-            if isinstance(value.data, dict):
-                return value.data
-            elif value.data is None:
-                return None
-            else:
-                return {
-                    settings.LANGUAGE_CODE: str(value.data)
-                }
-        elif value is None:
-            return None
-        else:
-            return {
-                settings.LANGUAGE_CODE: str(value)
-            }
-
-    def to_internal_value(self, data):
-        if isinstance(data, str):
-            return LazyI18nString(data)
-        elif isinstance(data, dict):
-            if any([k not in dict(settings.LANGUAGES) for k in data.keys()]):
-                raise ValidationError('Invalid languages included.')
-            return LazyI18nString(data)
-        else:
-            raise ValidationError('Invalid data type.')
-
-
-class I18nAwareModelSerializer(ModelSerializer):
-    pass
-
-
-I18nAwareModelSerializer.serializer_field_mapping[I18nCharField] = I18nField
-I18nAwareModelSerializer.serializer_field_mapping[I18nTextField] = I18nField
+from i18nfield.rest_framework import I18nAwareModelSerializer, I18nField
 
 
 class I18nURLField(I18nField):
@@ -84,3 +35,10 @@ class I18nURLField(I18nField):
         else:
             URLValidator()(value.data)
         return value
+
+
+__all__ = [
+    "I18nAwareModelSerializer",  # for backwards compatibility
+    "I18nField",  # for backwards compatibility
+    "I18nURLField",
+]

src/pretix/api/serializers/item.py

@@ -272,7 +272,7 @@ class ItemSerializer(SalesChannelMigrationMixin, I18nAwareModelSerializer):
                   'require_voucher', 'hide_without_voucher', 'allow_cancel', 'require_bundling',
                   'min_per_order', 'max_per_order', 'checkin_attention', 'checkin_text', 'has_variations', 'variations',
                   'addons', 'bundles', 'original_price', 'require_approval', 'generate_tickets',
-                  'show_quota_left', 'hidden_if_available', 'hidden_if_item_available', 'allow_waitinglist',
+                  'show_quota_left', 'hidden_if_available', 'hidden_if_item_available', 'hidden_if_item_available_mode', 'allow_waitinglist',
                   'issue_giftcard', 'meta_data',
                   'require_membership', 'require_membership_types', 'require_membership_hidden', 'grant_membership_type',
                   'grant_membership_duration_like_event', 'grant_membership_duration_days',
@@ -369,7 +369,7 @@ class ItemSerializer(SalesChannelMigrationMixin, I18nAwareModelSerializer):
         require_membership_types = validated_data.pop('require_membership_types', [])
         limit_sales_channels = validated_data.pop('limit_sales_channels', [])
         item = Item.objects.create(**validated_data)
-        if limit_sales_channels:
+        if limit_sales_channels and not validated_data.get('all_sales_channels'):
             item.limit_sales_channels.add(*limit_sales_channels)
         if picture:
             item.picture.save(os.path.basename(picture.name), picture)
@@ -441,7 +441,22 @@ class ItemCategorySerializer(I18nAwareModelSerializer):
 
     class Meta:
         model = ItemCategory
-        fields = ('id', 'name', 'internal_name', 'description', 'position', 'is_addon')
+        fields = (
+            'id', 'name', 'internal_name', 'description', 'position',
+            'is_addon', 'cross_selling_mode',
+            'cross_selling_condition', 'cross_selling_match_products'
+        )
+
+    def validate(self, data):
+        data = super().validate(data)
+
+        full_data = self.to_internal_value(self.to_representation(self.instance)) if self.instance else {}
+        full_data.update(data)
+
+        if full_data.get('is_addon') and full_data.get('cross_selling_mode'):
+            raise ValidationError('is_addon and cross_selling_mode are mutually exclusive')
+
+        return data
 
 
 class QuestionOptionSerializer(I18nAwareModelSerializer):

src/pretix/api/serializers/order.py

@@ -55,7 +55,7 @@ from pretix.base.models import (
 )
 from pretix.base.models.orders import (
     BlockedTicketSecret, CartPosition, OrderFee, OrderPayment, OrderRefund,
-    RevokedTicketSecret,
+    PrintLog, RevokedTicketSecret,
 )
 from pretix.base.pdf import get_images, get_variables
 from pretix.base.services.cart import error_messages
@@ -273,9 +273,35 @@ class AnswerSerializer(I18nAwareModelSerializer):
 
 
 class CheckinSerializer(I18nAwareModelSerializer):
+    device_id = serializers.SlugRelatedField(
+        source='device',
+        slug_field='device_id',
+        read_only=True,
+    )
+
     class Meta:
         model = Checkin
-        fields = ('id', 'datetime', 'list', 'auto_checked_in', 'gate', 'device', 'type')
+        fields = ('id', 'datetime', 'list', 'auto_checked_in', 'gate', 'device', 'device_id', 'type')
+
+
+class PrintLogSerializer(serializers.ModelSerializer):
+    device_id = serializers.SlugRelatedField(
+        source='device',
+        slug_field='device_id',
+        read_only=True,
+    )
+
+    class Meta:
+        model = PrintLog
+        fields = (
+            "id",
+            "successful",
+            "datetime",
+            "source",
+            "type",
+            "device_id",
+            "info",
+        )
 
 
 class FailedCheckinSerializer(I18nAwareModelSerializer):
@@ -470,6 +496,7 @@ class OrderPositionListSerializer(serializers.ListSerializer):
 
 class OrderPositionSerializer(I18nAwareModelSerializer):
     checkins = CheckinSerializer(many=True, read_only=True)
+    print_logs = PrintLogSerializer(many=True, read_only=True)
     answers = AnswerSerializer(many=True)
     downloads = PositionDownloadsField(source='*', read_only=True)
     order = serializers.SlugRelatedField(slug_field='code', read_only=True)
@@ -484,12 +511,13 @@ class OrderPositionSerializer(I18nAwareModelSerializer):
         fields = ('id', 'order', 'positionid', 'item', 'variation', 'price', 'attendee_name', 'attendee_name_parts',
                   'company', 'street', 'zipcode', 'city', 'country', 'state', 'discount',
                   'attendee_email', 'voucher', 'tax_rate', 'tax_value', 'secret', 'addon_to', 'subevent', 'checkins',
-                  'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'canceled',
-                  'valid_from', 'valid_until', 'blocked', 'voucher_budget_use')
+                  'print_logs', 'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'canceled',
+                  'print_logs', 'downloads', 'answers', 'tax_rule', 'tax_code', 'pseudonymization_id', 'pdf_data', 'seat',
+                  'canceled', 'valid_from', 'valid_until', 'blocked', 'voucher_budget_use')
         read_only_fields = (
             'id', 'order', 'positionid', 'item', 'variation', 'price', 'voucher', 'tax_rate', 'tax_value', 'secret',
-            'addon_to', 'subevent', 'checkins', 'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data',
-            'seat', 'canceled', 'discount', 'valid_from', 'valid_until', 'blocked', 'voucher_budget_use'
+            'addon_to', 'subevent', 'checkins', 'downloads', 'answers', 'tax_rule', 'tax_code', 'pseudonymization_id',
+            'pdf_data', 'seat', 'canceled', 'discount', 'valid_from', 'valid_until', 'blocked', 'voucher_budget_use'
         )
 
     def __init__(self, *args, **kwargs):
@@ -571,9 +599,9 @@ class CheckinListOrderPositionSerializer(OrderPositionSerializer):
         fields = ('id', 'order', 'positionid', 'item', 'variation', 'price', 'attendee_name', 'attendee_name_parts',
                   'company', 'street', 'zipcode', 'city', 'country', 'state',
                   'attendee_email', 'voucher', 'tax_rate', 'tax_value', 'secret', 'addon_to', 'subevent', 'checkins',
-                  'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat', 'require_attention',
-                  'order__status', 'order__valid_if_pending', 'order__require_approval', 'valid_from', 'valid_until',
-                  'blocked')
+                  'print_logs', 'downloads', 'answers', 'tax_rule', 'pseudonymization_id', 'pdf_data', 'seat',
+                  'require_attention', 'order__status', 'order__valid_if_pending', 'order__require_approval',
+                  'valid_from', 'valid_until', 'blocked')
 
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -615,7 +643,8 @@ class OrderPaymentDateField(serializers.DateField):
 class OrderFeeSerializer(I18nAwareModelSerializer):
     class Meta:
         model = OrderFee
-        fields = ('id', 'fee_type', 'value', 'description', 'internal_type', 'tax_rate', 'tax_value', 'tax_rule', 'canceled')
+        fields = ('id', 'fee_type', 'value', 'description', 'internal_type', 'tax_rate', 'tax_value', 'tax_rule',
+                  'tax_code', 'canceled')
 
 
 class PaymentURLField(serializers.URLField):
@@ -726,12 +755,12 @@ class OrderSerializer(I18nAwareModelSerializer):
             'code', 'event', 'status', 'testmode', 'secret', 'email', 'phone', 'locale', 'datetime', 'expires', 'payment_date',
             'payment_provider', 'fees', 'total', 'comment', 'custom_followup_at', 'invoice_address', 'positions', 'downloads',
             'checkin_attention', 'checkin_text', 'last_modified', 'payments', 'refunds', 'require_approval', 'sales_channel',
-            'url', 'customer', 'valid_if_pending', 'api_meta'
+            'url', 'customer', 'valid_if_pending', 'api_meta', 'cancellation_date'
         )
         read_only_fields = (
             'code', 'status', 'testmode', 'secret', 'datetime', 'expires', 'payment_date',
             'payment_provider', 'fees', 'total', 'positions', 'downloads', 'customer',
-            'last_modified', 'payments', 'refunds', 'require_approval', 'sales_channel'
+            'last_modified', 'payments', 'refunds', 'require_approval', 'sales_channel', 'cancellation_date'
         )
 
     def __init__(self, *args, **kwargs):
@@ -1488,6 +1517,7 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
                 pos.answers = answers
                 pos.pseudonymization_id = "PREVIEW"
                 pos.checkins = []
+                pos.print_logs = []
                 pos_map[pos.positionid] = pos
             else:
                 if pos.voucher:
@@ -1648,7 +1678,7 @@ class InlineInvoiceLineSerializer(I18nAwareModelSerializer):
     class Meta:
         model = InvoiceLine
         fields = ('position', 'description', 'item', 'variation', 'subevent', 'attendee_name', 'event_date_from',
-                  'event_date_to', 'gross_value', 'tax_value', 'tax_rate', 'tax_name', 'fee_type',
+                  'event_date_to', 'gross_value', 'tax_value', 'tax_rate', 'tax_code', 'tax_name', 'fee_type',
                   'fee_internal_type', 'event_location')
 
 

src/pretix/api/serializers/organizer.py

@@ -29,6 +29,7 @@ from django.utils.translation import gettext_lazy as _
 from rest_framework import serializers
 from rest_framework.exceptions import ValidationError
 
+from pretix.api.auth.devicesecurity import get_all_security_profiles
 from pretix.api.serializers import AsymmetricField
 from pretix.api.serializers.i18n import I18nAwareModelSerializer
 from pretix.api.serializers.order import CompatibleJSONField
@@ -297,6 +298,7 @@ class DeviceSerializer(serializers.ModelSerializer):
     revoked = serializers.BooleanField(read_only=True)
     initialized = serializers.DateTimeField(read_only=True)
     initialization_token = serializers.DateTimeField(read_only=True)
+    security_profile = serializers.ChoiceField(choices=[], required=False, default="full")
 
     class Meta:
         model = Device
@@ -306,6 +308,10 @@ class DeviceSerializer(serializers.ModelSerializer):
             'os_name', 'os_version', 'software_brand', 'software_version', 'security_profile'
         )
 
+    def __init__(self, *args, **kwargs):
+        super().__init__(*args, **kwargs)
+        self.fields['security_profile'].choices = [(k, v.verbose_name) for k, v in get_all_security_profiles().items()]
+
 
 class TeamInviteSerializer(serializers.ModelSerializer):
     class Meta:

src/pretix/api/signals.py

@@ -32,10 +32,17 @@ from pretix.helpers.periodic import minimum_interval
 register_webhook_events = Signal()
 """
 This signal is sent out to get all known webhook events. Receivers should return an
-instance of a subclass of pretix.api.webhooks.WebhookEvent or a list of such
+instance of a subclass of ``pretix.api.webhooks.WebhookEvent`` or a list of such
 instances.
 """
 
+register_device_security_profile = Signal()
+"""
+This signal is sent out to get all known device security_profiles. Receivers should
+return an instance of a subclass of ``pretix.api.auth.devicesecurity.BaseSecurityProfile``
+or a list of such instances.
+"""
+
 
 @receiver(periodic_task)
 @scopes_disabled()

src/pretix/api/urls.py

@@ -87,6 +87,7 @@ event_router.register(r'invoices', order.InvoiceViewSet)
 event_router.register(r'revokedsecrets', order.RevokedSecretViewSet, basename='revokedsecrets')
 event_router.register(r'blockedsecrets', order.BlockedSecretViewSet, basename='blockedsecrets')
 event_router.register(r'taxrules', event.TaxRuleViewSet)
+event_router.register(r'seats', event.SeatViewSet)
 event_router.register(r'waitinglistentries', waitinglist.WaitingListViewSet)
 event_router.register(r'checkinlists', checkin.CheckinListViewSet)
 event_router.register(r'cartpositions', cart.CartPositionViewSet)
@@ -95,6 +96,9 @@ event_router.register(r'exporters', exporters.EventExportersViewSet, basename='e
 event_router.register(r'shredders', shredders.EventShreddersViewSet, basename='shredders')
 event_router.register(r'item_meta_properties', event.ItemMetaPropertiesViewSet)
 
+subevent_router = routers.DefaultRouter()
+subevent_router.register(r'seats', event.SeatViewSet)
+
 checkinlist_router = routers.DefaultRouter()
 checkinlist_router.register(r'positions', checkin.CheckinListPositionViewSet, basename='checkinlistpos')
 
@@ -132,6 +136,7 @@ urlpatterns = [
     re_path(r'^organizers/(?P<organizer>[^/]+)/events/(?P<event>[^/]+)/settings/$', event.EventSettingsView.as_view(),
             name="event.settings"),
     re_path(r'^organizers/(?P<organizer>[^/]+)/events/(?P<event>[^/]+)/', include(event_router.urls)),
+    re_path(r'^organizers/(?P<organizer>[^/]+)/events/(?P<event>[^/]+)/subevents/(?P<subevent>\d+)/', include(subevent_router.urls)),
     re_path(r'^organizers/(?P<organizer>[^/]+)/teams/(?P<team>[^/]+)/', include(team_router.urls)),
     re_path(r'^organizers/(?P<organizer>[^/]+)/events/(?P<event>[^/]+)/items/(?P<item>[^/]+)/', include(item_router.urls)),
     re_path(r'^organizers/(?P<organizer>[^/]+)/events/(?P<event>[^/]+)/questions/(?P<question>[^/]+)/',

src/pretix/api/views/checkin.py

@@ -62,6 +62,7 @@ from pretix.base.models import (
     CachedFile, Checkin, CheckinList, Device, Event, Order, OrderPosition,
     Question, ReusableMedium, RevokedTicketSecret, TeamAPIToken,
 )
+from pretix.base.models.orders import PrintLog
 from pretix.base.services.checkin import (
     CheckInError, RequiredQuestionsError, SQLLogic, perform_checkin,
 )
@@ -115,7 +116,7 @@ class CheckinListViewSet(viewsets.ModelViewSet):
         if 'subevent' in self.request.query_params.getlist('expand'):
             qs = qs.prefetch_related(
                 'subevent', 'subevent__event', 'subevent__subeventitem_set', 'subevent__subeventitemvariation_set',
-                'subevent__seat_category_mappings', 'subevent__meta_values', 'auto_checkin_sales_channels'
+                'subevent__seat_category_mappings', 'subevent__meta_values',
             )
         return qs
 
@@ -142,7 +143,9 @@ class CheckinListViewSet(viewsets.ModelViewSet):
             data=self.request.data
         )
 
+    @transaction.atomic
     def perform_destroy(self, instance):
+        instance.checkins.all().delete()
         instance.log_action(
             'pretix.event.checkinlist.deleted',
             user=self.request.user,
@@ -365,8 +368,9 @@ def _checkin_list_position_queryset(checkinlists, ignore_status=False, ignore_pr
         qs = qs.prefetch_related(
             Prefetch(
                 lookup='checkins',
-                queryset=Checkin.objects.filter(list_id__in=[cl.pk for cl in checkinlists])
+                queryset=Checkin.objects.filter(list_id__in=[cl.pk for cl in checkinlists]).select_related('device')
             ),
+            Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
             'answers', 'answers__options', 'answers__question',
             Prefetch('addons', OrderPosition.objects.select_related('item', 'variation')),
             Prefetch('order', Order.objects.select_related('invoice_address').prefetch_related(
@@ -377,7 +381,8 @@ def _checkin_list_position_queryset(checkinlists, ignore_status=False, ignore_pr
                 Prefetch(
                     'positions',
                     OrderPosition.objects.prefetch_related(
-                        Prefetch('checkins', queryset=Checkin.objects.all()),
+                        Prefetch('checkins', queryset=Checkin.objects.select_related('device')),
+                        Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                         'item', 'variation', 'answers', 'answers__options', 'answers__question',
                     )
                 )
@@ -389,8 +394,9 @@ def _checkin_list_position_queryset(checkinlists, ignore_status=False, ignore_pr
         qs = qs.prefetch_related(
             Prefetch(
                 lookup='checkins',
-                queryset=Checkin.objects.filter(list_id__in=[cl.pk for cl in checkinlists])
+                queryset=Checkin.objects.filter(list_id__in=[cl.pk for cl in checkinlists]).select_related('device')
             ),
+            Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
             'answers', 'answers__options', 'answers__question',
             Prefetch('addons', OrderPosition.objects.select_related('item', 'variation'))
         ).select_related('item', 'variation', 'order', 'addon_to', 'order__invoice_address', 'order', 'seat')

src/pretix/api/views/device.py

@@ -20,6 +20,7 @@
 # <https://www.gnu.org/licenses/>.
 #
 import base64
+import copy
 import logging
 
 from cryptography.hazmat.backends.openssl.backend import Backend
@@ -146,6 +147,8 @@ class InitializeView(APIView):
     permission_classes = ()
 
     def post(self, request, format=None):
+        from pretix.base.signals import device_info_updated
+
         serializer = InitializationRequestSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
 
@@ -160,6 +163,8 @@ class InitializeView(APIView):
         if device.revoked:
             raise ValidationError({'token': ['This initialization token has been revoked.']})
 
+        old_instance = copy.copy(device)
+
         device.initialized = now()
         device.hardware_brand = serializer.validated_data.get('hardware_brand')
         device.hardware_model = serializer.validated_data.get('hardware_model')
@@ -174,6 +179,10 @@ class InitializeView(APIView):
 
         device.log_action('pretix.device.initialized', data=serializer.validated_data, auth=device)
 
+        device_info_updated.send(
+            sender=Device, old_device=old_instance, new_device=device
+        )
+
         serializer = DeviceSerializer(device)
         return Response(serializer.data)
 
@@ -182,9 +191,12 @@ class UpdateView(APIView):
     authentication_classes = (DeviceTokenAuthentication,)
 
     def post(self, request, format=None):
+        from pretix.base.signals import device_info_updated
+
         serializer = UpdateRequestSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         device = request.auth
+        old_instance = copy.copy(device)
         device.hardware_brand = serializer.validated_data.get('hardware_brand')
         device.hardware_model = serializer.validated_data.get('hardware_model')
         device.os_name = serializer.validated_data.get('os_name')
@@ -200,6 +212,10 @@ class UpdateView(APIView):
         device.save()
         device.log_action('pretix.device.updated', data=serializer.validated_data, auth=device)
 
+        device_info_updated.send(
+            sender=Device, old_device=old_instance, new_device=device
+        )
+
         serializer = DeviceSerializer(device)
         return Response(serializer.data)
 

src/pretix/api/views/event.py

@@ -40,7 +40,10 @@ from django.utils.timezone import now
 from django_filters.rest_framework import DjangoFilterBackend, FilterSet
 from django_scopes import scopes_disabled
 from rest_framework import serializers, views, viewsets
-from rest_framework.exceptions import PermissionDenied, ValidationError
+from rest_framework.decorators import action
+from rest_framework.exceptions import (
+    NotFound, PermissionDenied, ValidationError,
+)
 from rest_framework.generics import get_object_or_404
 from rest_framework.response import Response
 
@@ -48,12 +51,13 @@ from pretix.api.auth.permission import EventCRUDPermission
 from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.event import (
     CloneEventSerializer, DeviceEventSettingsSerializer, EventSerializer,
-    EventSettingsSerializer, ItemMetaPropertiesSerializer, SubEventSerializer,
+    EventSettingsSerializer, ItemMetaPropertiesSerializer,
+    SeatBulkBlockInputSerializer, SeatSerializer, SubEventSerializer,
     TaxRuleSerializer,
 )
 from pretix.api.views import ConditionalListView
 from pretix.base.models import (
-    CartPosition, Device, Event, ItemMetaProperty, SeatCategoryMapping,
+    CartPosition, Device, Event, ItemMetaProperty, Seat, SeatCategoryMapping,
     TaxRule, TeamAPIToken,
 )
 from pretix.base.models.event import SubEvent
@@ -235,9 +239,9 @@ class EventViewSet(viewsets.ModelViewSet):
             disabled = {m: 'disabled' for m in current_plugins_value if m not in updated_plugins_value}
             changed = merge_dicts(enabled, disabled)
 
-            for module, action in changed.items():
+            for module, operation in changed.items():
                 serializer.instance.log_action(
-                    'pretix.event.plugins.' + action,
+                    'pretix.event.plugins.' + operation,
                     user=self.request.user,
                     auth=self.request.auth,
                     data={'plugin': module}
@@ -295,7 +299,8 @@ class EventViewSet(viewsets.ModelViewSet):
 
             if 'all_sales_channels' in serializer.validated_data and 'sales_channels' in serializer.validated_data:
                 new_event.all_sales_channels = serializer.validated_data['all_sales_channels']
-                new_event.limit_sales_channels.set(serializer.validated_data['limit_sales_channels'])
+                if not new_event.all_sales_channels:
+                    new_event.limit_sales_channels.set(serializer.validated_data['limit_sales_channels'])
         else:
             serializer.instance.set_defaults()
 
@@ -368,7 +373,7 @@ with scopes_disabled():
 
         class Meta:
             model = SubEvent
-            fields = ['active', 'event__live']
+            fields = ['is_public', 'active', 'event__live']
 
         def ends_after_qs(self, queryset, name, value):
             expr = Q(
@@ -667,3 +672,98 @@ class EventSettingsView(views.APIView):
                 'request': request
             })
         return Response(s.data)
+
+
+class SeatFilter(FilterSet):
+    is_available = django_filters.BooleanFilter(method="is_available_qs")
+
+    def is_available_qs(self, queryset, name, value):
+        expr = (
+            Q(orderposition_id__isnull=True, cartposition_id__isnull=True, voucher_id__isnull=True)
+        )
+        if self.request.event.settings.seating_minimal_distance:
+            expr = expr & Q(has_closeby_taken=False)
+        if value:
+            return queryset.filter(expr)
+        else:
+            return queryset.exclude(expr)
+
+    class Meta:
+        model = Seat
+        fields = ('zone_name', 'row_name', 'row_label', 'seat_number', 'seat_label', 'seat_guid', 'blocked',)
+
+
+class SeatViewSet(ConditionalListView, viewsets.ModelViewSet):
+    serializer_class = SeatSerializer
+    queryset = Seat.objects.none()
+    write_permission = 'can_change_event_settings'
+    filter_backends = (DjangoFilterBackend, )
+    filterset_class = SeatFilter
+
+    def get_queryset(self):
+        if self.request.event.has_subevents and 'subevent' in self.request.resolver_match.kwargs:
+            try:
+                subevent = self.request.event.subevents.get(pk=self.request.resolver_match.kwargs['subevent'])
+            except SubEvent.DoesNotExist:
+                raise NotFound('Subevent not found')
+            qs = Seat.annotated(
+                event_id=self.request.event.id,
+                subevent=subevent,
+                qs=subevent.seats.all(),
+                annotate_ids=True,
+                minimal_distance=self.request.event.settings.seating_minimal_distance,
+                distance_only_within_row=self.request.event.settings.seating_distance_only_within_row,
+            )
+        elif not self.request.event.has_subevents and 'subevent' not in self.request.resolver_match.kwargs:
+            qs = Seat.annotated(
+                event_id=self.request.event.id,
+                subevent=None,
+                qs=self.request.event.seats.all(),
+                annotate_ids=True,
+                minimal_distance=self.request.event.settings.seating_minimal_distance,
+                distance_only_within_row=self.request.event.settings.seating_distance_only_within_row,
+            )
+        else:
+            raise NotFound('Please use the subevent-specific endpoint' if self.request.event.has_subevents
+                           else 'This event has no subevents')
+
+        return qs
+
+    def get_serializer_context(self):
+        ctx = super().get_serializer_context()
+        ctx['expand_fields'] = self.request.query_params.getlist('expand')
+        ctx['order_context'] = {
+            'event': self.request.event,
+            'pdf_data': None,
+        }
+        return ctx
+
+    def perform_update(self, serializer):
+        super().perform_update(serializer)
+        serializer.instance.event.log_action(
+            "pretix.event.seats.blocks.changed",
+            user=self.request.user,
+            auth=self.request.auth,
+            data={"seats": [serializer.instance.pk]},
+        )
+
+    def bulk_change_blocked(self, blocked):
+        s = SeatBulkBlockInputSerializer(
+            data=self.request.data,
+            context={"event": self.request.event, "queryset": self.get_queryset()},
+        )
+        s.is_valid(raise_exception=True)
+
+        seats = s.validated_data["seats"]
+        for seat in seats:
+            seat.blocked = blocked
+        Seat.objects.bulk_update(seats, ["blocked"], batch_size=1000)
+        return Response({})
+
+    @action(methods=["POST"], detail=False)
+    def bulk_block(self, request, *args, **kwargs):
+        return self.bulk_change_blocked(True)
+
+    @action(methods=["POST"], detail=False)
+    def bulk_unblock(self, request, *args, **kwargs):
+        return self.bulk_change_blocked(False)

src/pretix/api/views/item.py

@@ -619,7 +619,7 @@ class QuotaViewSet(ConditionalListView, viewsets.ModelViewSet):
     def availability(self, request, *args, **kwargs):
         quota = self.get_object()
 
-        qa = QuotaAvailability()
+        qa = QuotaAvailability(full_results=True)
         qa.queue(quota)
         qa.compute()
         avail = qa.results[quota]

src/pretix/api/views/media.py

@@ -42,6 +42,7 @@ from pretix.base.models import (
     Checkin, GiftCard, GiftCardAcceptance, GiftCardTransaction, OrderPosition,
     ReusableMedium,
 )
+from pretix.base.models.orders import PrintLog
 from pretix.helpers import OF_SELF
 from pretix.helpers.dicts import merge_dicts
 
@@ -78,7 +79,8 @@ class ReusableMediaViewSet(viewsets.ModelViewSet):
                 queryset=OrderPosition.objects.select_related(
                     'order', 'order__event', 'order__event__organizer', 'seat',
                 ).prefetch_related(
-                    Prefetch('checkins', queryset=Checkin.objects.all()),
+                    Prefetch('checkins', queryset=Checkin.objects.select_related('device')),
+                    Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                     'answers', 'answers__options', 'answers__question',
                 )
             ),

src/pretix/api/views/order.py

@@ -35,6 +35,7 @@ from django.db.models import (
 from django.db.models.functions import Coalesce, Concat
 from django.http import FileResponse, HttpResponse
 from django.shortcuts import get_object_or_404
+from django.utils import formats
 from django.utils.timezone import make_aware, now
 from django.utils.translation import gettext as _
 from django_filters.rest_framework import DjangoFilterBackend, FilterSet
@@ -49,6 +50,7 @@ from rest_framework.mixins import CreateModelMixin
 from rest_framework.permissions import SAFE_METHODS
 from rest_framework.response import Response
 
+from pretix.api.filters import MultipleCharFilter
 from pretix.api.models import OAuthAccessToken
 from pretix.api.pagination import TotalOrderingFilter
 from pretix.api.serializers.order import (
@@ -56,7 +58,8 @@ from pretix.api.serializers.order import (
     OrderPaymentCreateSerializer, OrderPaymentSerializer,
     OrderPositionSerializer, OrderRefundCreateSerializer,
     OrderRefundSerializer, OrderSerializer, PriceCalcSerializer,
-    RevokedTicketSecretSerializer, SimulatedOrderSerializer,
+    PrintLogSerializer, RevokedTicketSecretSerializer,
+    SimulatedOrderSerializer,
 )
 from pretix.api.serializers.orderchange import (
     BlockNameSerializer, OrderChangeOperationSerializer,
@@ -65,6 +68,7 @@ from pretix.api.serializers.orderchange import (
     OrderPositionInfoPatchSerializer,
 )
 from pretix.api.views import RichOrderingFilter
+from pretix.base.decimal import round_decimal
 from pretix.base.i18n import language
 from pretix.base.models import (
     CachedCombinedTicket, CachedTicket, Checkin, Device, EventMetaValue,
@@ -74,7 +78,7 @@ from pretix.base.models import (
     TeamAPIToken, generate_secret,
 )
 from pretix.base.models.orders import (
-    BlockedTicketSecret, QuestionAnswer, RevokedTicketSecret,
+    BlockedTicketSecret, PrintLog, QuestionAnswer, RevokedTicketSecret,
 )
 from pretix.base.payment import PaymentException
 from pretix.base.pdf import get_images
@@ -95,7 +99,6 @@ from pretix.base.services.tickets import generate
 from pretix.base.signals import (
     order_modified, order_paid, order_placed, register_ticket_outputs,
 )
-from pretix.base.templatetags.money import money_filter
 from pretix.control.signals import order_search_filter_q
 from pretix.helpers import OF_SELF
 
@@ -213,7 +216,7 @@ class OrderViewSetMixin:
     queryset = Order.objects.none()
     filter_backends = (DjangoFilterBackend, TotalOrderingFilter)
     ordering = ('datetime',)
-    ordering_fields = ('datetime', 'code', 'status', 'last_modified')
+    ordering_fields = ('datetime', 'code', 'status', 'last_modified', 'cancellation_date')
     filterset_class = OrderFilter
     lookup_field = 'code'
 
@@ -257,7 +260,8 @@ class OrderViewSetMixin:
             return Prefetch(
                 'positions',
                 opq.all().prefetch_related(
-                    Prefetch('checkins', queryset=Checkin.objects.all()),
+                    Prefetch('checkins', queryset=Checkin.objects.select_related('device')),
+                    Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                     Prefetch('item', queryset=self.request.event.items.prefetch_related(
                         Prefetch('meta_values', ItemMetaValue.objects.select_related('property'), to_attr='meta_values_cached')
                     )),
@@ -278,7 +282,8 @@ class OrderViewSetMixin:
             return Prefetch(
                 'positions',
                 opq.all().prefetch_related(
-                    Prefetch('checkins', queryset=Checkin.objects.all()),
+                    Prefetch('checkins', queryset=Checkin.objects.select_related('device')),
+                    Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                     'item', 'variation',
                     Prefetch('answers', queryset=QuestionAnswer.objects.prefetch_related('options', 'question').order_by('question__position')),
                     'seat',
@@ -597,7 +602,7 @@ class EventOrderViewSet(OrderViewSetMixin, viewsets.ModelViewSet):
             order.status in (Order.STATUS_PAID, Order.STATUS_PENDING)
             and order.invoices.filter(is_cancellation=True).count() >= order.invoices.filter(is_cancellation=False).count()
         )
-        if self.request.event.settings.get('invoice_generate') not in ('admin', 'user', 'paid', 'True') or not invoice_qualified(order):
+        if self.request.event.settings.get('invoice_generate') not in ('admin', 'user', 'paid', 'user_paid', 'True') or not invoice_qualified(order):
             return Response(
                 {'detail': _('You cannot generate an invoice for this order.')},
                 status=status.HTTP_400_BAD_REQUEST
@@ -642,6 +647,8 @@ class EventOrderViewSet(OrderViewSetMixin, viewsets.ModelViewSet):
         order = self.get_object()
         order.secret = generate_secret()
         for op in order.all_positions.all():
+            op.web_secret = generate_secret()
+            op.save(update_fields=["web_secret"])
             assign_ticket_secret(
                 request.event, op, force_invalidate=True, save=True
             )
@@ -1091,7 +1098,8 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
                 'item_meta_properties',
             )
             qs = qs.prefetch_related(
-                Prefetch('checkins', queryset=Checkin.objects.all()),
+                Prefetch('checkins', queryset=Checkin.objects.select_related("device")),
+                Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                 Prefetch('item', queryset=self.request.event.items.prefetch_related(
                     Prefetch('meta_values', ItemMetaValue.objects.select_related('property'),
                              to_attr='meta_values_cached')
@@ -1110,7 +1118,7 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
                     Prefetch(
                         'positions',
                         qs.prefetch_related(
-                            Prefetch('checkins', queryset=Checkin.objects.all()),
+                            Prefetch('checkins', queryset=Checkin.objects.select_related('device')),
                             Prefetch('item', queryset=self.request.event.items.prefetch_related(
                                 Prefetch('meta_values', ItemMetaValue.objects.select_related('property'),
                                          to_attr='meta_values_cached')
@@ -1134,7 +1142,8 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
             )
         else:
             qs = qs.prefetch_related(
-                Prefetch('checkins', queryset=Checkin.objects.all()),
+                Prefetch('checkins', queryset=Checkin.objects.select_related("device")),
+                Prefetch('print_logs', queryset=PrintLog.objects.select_related('device')),
                 'answers', 'answers__options', 'answers__question',
             ).select_related(
                 'item', 'order', 'order__event', 'order__event__organizer', 'seat'
@@ -1222,9 +1231,10 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
         price = get_price(**kwargs)
         tr = kwargs.get('tax_rule', kwargs.get('item').tax_rule)
         with language(data.get('locale') or self.request.event.settings.locale, self.request.event.settings.region):
+            gross_formatted = formats.localize_input(round_decimal(price.gross, self.request.event.currency))
             return Response({
                 'gross': price.gross,
-                'gross_formatted': money_filter(price.gross, self.request.event.currency, hide_currency=True),
+                'gross_formatted': gross_formatted,
                 'net': price.net,
                 'rate': price.rate,
                 'name': str(price.name),
@@ -1253,6 +1263,34 @@ class OrderPositionViewSet(viewsets.ModelViewSet):
         )
         return resp
 
+    @action(detail=True, url_name="printlog", url_path="printlog", methods=["POST"])
+    def printlog(self, request, **kwargs):
+        pos = self.get_object()
+        serializer = PrintLogSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+
+        with transaction.atomic():
+            serializer.save(
+                position=pos,
+                device=request.auth if isinstance(request.auth, Device) else None,
+                user=request.user if request.user.is_authenticated else None,
+                api_token=request.auth if isinstance(request.auth, TeamAPIToken) else None,
+                oauth_application=request.auth.application if isinstance(request.auth, OAuthAccessToken) else None,
+            )
+
+            pos.order.log_action(
+                "pretix.event.order.print",
+                data={
+                    "position": pos.pk,
+                    "positionid": pos.positionid,
+                    **serializer.validated_data,
+                },
+                auth=request.auth,
+                user=request.user,
+            )
+
+        return Response(serializer.data, status=status.HTTP_201_CREATED)
+
     @action(detail=True, url_name='pdf_image', url_path=r'pdf_image/(?P<key>[^/]+)')
     def pdf_image(self, request, key, **kwargs):
         pos = self.get_object()
@@ -1825,17 +1863,14 @@ class RefundViewSet(CreateModelMixin, viewsets.ReadOnlyModelViewSet):
 with scopes_disabled():
     class InvoiceFilter(FilterSet):
         refers = django_filters.CharFilter(method='refers_qs')
-        number = django_filters.CharFilter(method='nr_qs')
-        order = django_filters.CharFilter(field_name='order', lookup_expr='code__iexact')
+        number = MultipleCharFilter(field_name='nr', lookup_expr='iexact')
+        order = MultipleCharFilter(field_name='order', lookup_expr='code__iexact')
 
         def refers_qs(self, queryset, name, value):
             return queryset.annotate(
                 refers_nr=Concat('refers__prefix', 'refers__invoice_no')
             ).filter(refers_nr__iexact=value)
 
-        def nr_qs(self, queryset, name, value):
-            return queryset.filter(nr__iexact=value)
-
         class Meta:
             model = Invoice
             fields = ['order', 'number', 'is_cancellation', 'refers', 'locale']

src/pretix/api/views/webhooks.py

@@ -19,6 +19,8 @@
 # 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 django_filters
+from django_filters.rest_framework import DjangoFilterBackend, FilterSet
 from rest_framework import viewsets
 
 from pretix.api.models import WebHook
@@ -26,11 +28,17 @@ from pretix.api.serializers.webhooks import WebHookSerializer
 from pretix.helpers.dicts import merge_dicts
 
 
+class WebhookFilter(FilterSet):
+    enabled = django_filters.rest_framework.BooleanFilter()
+
+
 class WebHookViewSet(viewsets.ModelViewSet):
     serializer_class = WebHookSerializer
     queryset = WebHook.objects.none()
     permission = 'can_change_organizer_settings'
     write_permission = 'can_change_organizer_settings'
+    filter_backends = (DjangoFilterBackend,)
+    filterset_class = WebhookFilter
 
     def get_queryset(self):
         return self.request.organizer.webhooks.prefetch_related('listeners')

src/pretix/base/auth.py

@@ -32,13 +32,16 @@
 # 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.
 
+import string
 from collections import OrderedDict
 from importlib import import_module
 
 from django import forms
 from django.conf import settings
 from django.contrib.auth import authenticate
-from django.utils.translation import gettext_lazy as _
+from django.contrib.auth.hashers import check_password, make_password
+from django.core.exceptions import ValidationError
+from django.utils.translation import gettext_lazy as _, ngettext
 
 
 def get_auth_backends():
@@ -149,7 +152,7 @@ class NativeAuthBackend(BaseAuthBackend):
         to log in.
         """
         d = OrderedDict([
-            ('email', forms.EmailField(label=_("E-mail"), max_length=254,
+            ('email', forms.EmailField(label=_("Email"), max_length=254,
                                        widget=forms.EmailInput(attrs={'autofocus': 'autofocus'}))),
             ('password', forms.CharField(label=_("Password"), widget=forms.PasswordInput,
                                          max_length=4096)),
@@ -160,3 +163,74 @@ class NativeAuthBackend(BaseAuthBackend):
         u = authenticate(request=request, email=form_data['email'].lower(), password=form_data['password'])
         if u and u.auth_backend == self.identifier:
             return u
+
+
+class NumericAndAlphabeticPasswordValidator:
+
+    def validate(self, password, user=None):
+        has_numeric = any(c in string.digits for c in password)
+        has_alpha = any(c in string.ascii_letters for c in password)
+        if not has_numeric or not has_alpha:
+            raise ValidationError(
+                _(
+                    "Your password must contain both numeric and alphabetic characters.",
+                ),
+                code="password_numeric_and_alphabetic",
+            )
+
+    def get_help_text(self):
+        return _(
+            "Your password must contain both numeric and alphabetic characters.",
+        )
+
+
+class HistoryPasswordValidator:
+
+    def __init__(self, history_length=4):
+        self.history_length = history_length
+
+    def validate(self, password, user=None):
+        from pretix.base.models import User
+
+        if not user or not user.pk or not isinstance(user, User):
+            return
+
+        for hp in user.historic_passwords.order_by("-created")[:self.history_length]:
+            if check_password(password, hp.password):
+                raise ValidationError(
+                    ngettext(
+                        "Your password may not be the same as your previous password.",
+                        "Your password may not be the same as one of your %(history_length)s previous passwords.",
+                        self.history_length,
+                    ),
+                    code="password_history",
+                    params={"history_length": self.history_length},
+                )
+
+    def get_help_text(self):
+        return ngettext(
+            "Your password may not be the same as your previous password.",
+            "Your password may not be the same as one of your %(history_length)s previous passwords.",
+            self.history_length,
+        ) % {"history_length": self.history_length}
+
+    def password_changed(self, password, user=None):
+        if not user:
+            pass
+
+        user.historic_passwords.create(password=make_password(password))
+        user.historic_passwords.filter(
+            pk__in=user.historic_passwords.order_by("-created")[self.history_length:].values_list("pk", flat=True),
+        ).delete()
+
+
+def has_event_access_permission(request, permission='can_change_event_settings'):
+    return (
+        request.user.is_authenticated and
+        request.user.has_event_permission(request.organizer, request.event, permission, request=request)
+    ) or (
+        getattr(request, 'event_access_user', None) and
+        request.event_access_user.is_authenticated and
+        request.event_access_user.has_event_permission(request.organizer, request.event, permission,
+                                                       session_key=request.event_access_parent_session_key)
+    )

src/pretix/base/customersso/oidc.py

@@ -24,7 +24,7 @@ import hashlib
 import logging
 import time
 from datetime import datetime
-from urllib.parse import urlencode, urljoin
+from urllib.parse import parse_qsl, urlencode, urljoin
 
 import jwt
 import requests
@@ -46,6 +46,8 @@ This module contains utilities for implementing OpenID Connect for customer auth
 as well as an OpenID Provider (OP).
 """
 
+pretix_token_endpoint_auth_methods = ['client_secret_basic', 'client_secret_post']
+
 
 def _urljoin(base, path):
     if not base.endswith("/"):
@@ -127,6 +129,21 @@ def oidc_validate_and_complete_config(config):
                         fields=", ".join(provider_config.get("claims_supported", []))
                     ))
 
+    if "token_endpoint_auth_methods_supported" in provider_config:
+        token_endpoint_auth_methods_supported = provider_config.get("token_endpoint_auth_methods_supported",
+                                                                    ["client_secret_basic"])
+        if not any(x in pretix_token_endpoint_auth_methods for x in token_endpoint_auth_methods_supported):
+            raise ValidationError(
+                _(f'No supported Token Endpoint Auth Methods supported: {token_endpoint_auth_methods_supported}').format(
+                    token_endpoint_auth_methods_supported=", ".join(token_endpoint_auth_methods_supported)
+                )
+            )
+
+    if "query_parameters" in config and config["query_parameters"]:
+        config["query_parameters"] = urlencode(
+            parse_qsl(config["query_parameters"])
+        )
+
     config['provider_config'] = provider_config
     return config
 
@@ -142,11 +159,27 @@ def oidc_authorize_url(provider, state, redirect_uri):
         'state': state,
         'redirect_uri': redirect_uri,
     }
+
+    if "query_parameters" in provider.configuration and provider.configuration["query_parameters"]:
+        params.update(parse_qsl(provider.configuration["query_parameters"]))
+
     return endpoint + '?' + urlencode(params)
 
 
 def oidc_validate_authorization(provider, code, redirect_uri):
     endpoint = provider.configuration['provider_config']['token_endpoint']
+
+    # Wall of shame and RFC ignorant IDPs
+    if endpoint == 'https://www.linkedin.com/oauth/v2/accessToken':
+        token_endpoint_auth_method = 'client_secret_post'
+    else:
+        token_endpoint_auth_methods = provider.configuration['provider_config'].get(
+            'token_endpoint_auth_methods_supported', ['client_secret_basic']
+        )
+        token_endpoint_auth_method = [
+            x for x in pretix_token_endpoint_auth_methods if x in token_endpoint_auth_methods
+        ][0]
+
     params = {
         # https://datatracker.ietf.org/doc/html/rfc6749#section-4.1.3
         # https://openid.net/specs/openid-connect-core-1_0.html#TokenEndpoint
@@ -154,6 +187,11 @@ def oidc_validate_authorization(provider, code, redirect_uri):
         'code': code,
         'redirect_uri': redirect_uri,
     }
+
+    if token_endpoint_auth_method == 'client_secret_post':
+        params['client_id'] = provider.configuration['client_id']
+        params['client_secret'] = provider.configuration['client_secret']
+
     try:
         resp = requests.post(
             endpoint,
@@ -161,7 +199,10 @@ def oidc_validate_authorization(provider, code, redirect_uri):
             headers={
                 'Accept': 'application/json',
             },
-            auth=(provider.configuration['client_id'], provider.configuration['client_secret']),
+            auth=(
+                provider.configuration['client_id'],
+                provider.configuration['client_secret']
+            ) if token_endpoint_auth_method == 'client_secret_basic' else None,
         )
         resp.raise_for_status()
         data = resp.json()

src/pretix/base/email.py

@@ -35,6 +35,7 @@ from django.utils.translation import get_language, gettext_lazy as _
 from pretix.base.models import Event
 from pretix.base.signals import register_html_mail_renderers
 from pretix.base.templatetags.rich_text import markdown_compile_email
+from pretix.helpers.format import SafeFormatter, format_map
 
 from pretix.base.services.placeholders import (  # noqa
     get_available_placeholders, PlaceholderContext
@@ -68,7 +69,7 @@ def test_custom_smtp_backend(backend: T, from_addr: str) -> None:
 
 class BaseHTMLMailRenderer:
     """
-    This is the base class for all HTML e-mail renderers.
+    This is the base class for all HTML email renderers.
     """
 
     def __init__(self, event: Event, organizer=None):
@@ -79,7 +80,7 @@ class BaseHTMLMailRenderer:
         return self.identifier
 
     def render(self, plain_body: str, plain_signature: str, subject: str, order=None,
-               position=None) -> str:
+               position=None, context=None) -> str:
         """
         This method should generate the HTML part of the email.
 
@@ -88,6 +89,7 @@ class BaseHTMLMailRenderer:
         :param subject: The email subject.
         :param order: The order if this email is connected to one, otherwise ``None``.
         :param position: The order position if this email is connected to one, otherwise ``None``.
+        :param context: Context to use to render placeholders in the plain body
         :return: An HTML string
         """
         raise NotImplementedError()
@@ -134,8 +136,10 @@ class TemplateBasedMailRenderer(BaseHTMLMailRenderer):
     def compile_markdown(self, plaintext):
         return markdown_compile_email(plaintext)
 
-    def render(self, plain_body: str, plain_signature: str, subject: str, order, position) -> str:
+    def render(self, plain_body: str, plain_signature: str, subject: str, order, position, context) -> str:
         body_md = self.compile_markdown(plain_body)
+        if context:
+            body_md = format_map(body_md, context=context, mode=SafeFormatter.MODE_RICH_TO_HTML)
         htmlctx = {
             'site': settings.PRETIX_INSTANCE_NAME,
             'site_url': settings.SITE_URL,

src/pretix/base/exporter.py

@@ -207,10 +207,13 @@ class ListExporter(BaseExporter):
     def get_filename(self):
         return 'export'
 
+    def get_csv_encoding(self):
+        return 'utf-8'
+
     def _render_csv(self, form_data, output_file=None, **kwargs):
         if output_file:
             if 'b' in output_file.mode:
-                output_file = io.TextIOWrapper(output_file, encoding='utf-8', newline='')
+                output_file = io.TextIOWrapper(output_file, encoding=self.get_csv_encoding(), errors='replace', newline='')
             writer = csv.writer(output_file, **kwargs)
             total = 0
             counter = 0
@@ -246,7 +249,7 @@ class ListExporter(BaseExporter):
                     if counter % max(10, total // 100) == 0:
                         self.progress_callback(counter / total * 100)
                 writer.writerow(line)
-            return self.get_filename() + '.csv', 'text/csv', output.getvalue().encode("utf-8")
+            return self.get_filename() + '.csv', 'text/csv', output.getvalue().encode(self.get_csv_encoding(), errors='replace')
 
     def prepare_xlsx_sheet(self, ws):
         pass

src/pretix/base/exporters/customers.py

@@ -64,7 +64,7 @@ class CustomerListExporter(OrganizerLevelExportMixin, ListExporter):
             _('Customer ID'),
             _('SSO provider'),
             _('External identifier'),
-            _('E-mail'),
+            _('Email'),
             _('Phone number'),
             _('Full name'),
         ]

src/pretix/base/exporters/invoices.py

@@ -199,7 +199,7 @@ class InvoiceDataExporter(InvoiceExporterMixin, MultiSheetListExporter):
                 _('Invoice number'),
                 _('Date'),
                 _('Order code'),
-                _('E-mail address'),
+                _('Email address'),
                 _('Invoice type'),
                 _('Cancellation of'),
                 _('Language'),
@@ -326,7 +326,7 @@ class InvoiceDataExporter(InvoiceExporterMixin, MultiSheetListExporter):
                 _('Event start date'),
                 _('Date'),
                 _('Order code'),
-                _('E-mail address'),
+                _('Email address'),
                 _('Invoice type'),
                 _('Cancellation of'),
                 _('Invoice sender:') + ' ' + _('Name'),

src/pretix/base/exporters/orderlist.py

@@ -284,7 +284,7 @@ class OrderListExporter(MultiSheetListExporter):
         headers.append(_('Comment'))
         headers.append(_('Follow-up date'))
         headers.append(_('Positions'))
-        headers.append(_('E-mail address verified'))
+        headers.append(_('Email address verified'))
         headers.append(_('External customer ID'))
         headers.append(_('Payment providers'))
         if form_data.get('include_payment_amounts'):
@@ -655,7 +655,7 @@ class OrderListExporter(MultiSheetListExporter):
         headers += [
             _('Sales channel'),
             _('Order locale'),
-            _('E-mail address verified'),
+            _('Email address verified'),
             _('External customer ID'),
             _('Check-in lists'),
             _('Payment providers'),

src/pretix/base/forms/__init__.py

@@ -100,7 +100,7 @@ class MarkdownTextarea(forms.Textarea):
 
 
 class I18nMarkdownTextarea(i18nfield.forms.I18nTextarea):
-    def format_output(self, rendered_widgets) -> str:
+    def format_output(self, rendered_widgets, id_) -> str:
         rendered_widgets = rendered_widgets + [
             '<div class="i18n-field-markdown-note">%s</div>' % (
                 _("You can use {markup_name} in this field.").format(
@@ -108,11 +108,11 @@ class I18nMarkdownTextarea(i18nfield.forms.I18nTextarea):
                 )
             )
         ]
-        return super().format_output(rendered_widgets)
+        return super().format_output(rendered_widgets, id_)
 
 
 class I18nMarkdownTextInput(i18nfield.forms.I18nTextInput):
-    def format_output(self, rendered_widgets) -> str:
+    def format_output(self, rendered_widgets, id_) -> str:
         rendered_widgets = rendered_widgets + [
             '<div class="i18n-field-markdown-note">%s</div>' % (
                 _("You can use {markup_name} in this field.").format(
@@ -120,7 +120,7 @@ class I18nMarkdownTextInput(i18nfield.forms.I18nTextInput):
                 )
             )
         ]
-        return super().format_output(rendered_widgets)
+        return super().format_output(rendered_widgets, id_)
 
 
 SECRET_REDACTED = '*****'

src/pretix/base/forms/auth.py

@@ -254,7 +254,7 @@ class PasswordRecoverForm(forms.Form):
 
 class PasswordForgotForm(forms.Form):
     email = forms.EmailField(
-        label=_('E-mail'),
+        label=_('Email'),
     )
 
     def __init__(self, *args, **kwargs):

src/pretix/base/forms/questions.py

@@ -54,6 +54,7 @@ from django.core.validators import (
 from django.db.models import QuerySet
 from django.forms import Select, widgets
 from django.forms.widgets import FILE_INPUT_CONTRADICTION
+from django.urls import reverse
 from django.utils.formats import date_format
 from django.utils.html import escape
 from django.utils.safestring import mark_safe
@@ -77,7 +78,7 @@ from pretix.base.i18n import (
     get_babel_locale, get_language_without_region, language,
 )
 from pretix.base.models import InvoiceAddress, Item, Question, QuestionOption
-from pretix.base.models.tax import VAT_ID_COUNTRIES, ask_for_vat_id
+from pretix.base.models.tax import ask_for_vat_id
 from pretix.base.services.tax import (
     VATIDFinalError, VATIDTemporaryError, validate_vat_id,
 )
@@ -276,6 +277,10 @@ class NamePartsFormField(forms.MultiValueField):
         return value
 
 
+def name_parts_is_empty(name_parts_dict):
+    return not any(k != "_scheme" and v for k, v in name_parts_dict.items())
+
+
 class WrappedPhonePrefixSelect(Select):
     initial = None
 
@@ -602,6 +607,7 @@ class BaseQuestionsForm(forms.Form):
         questions = pos.item.questions_to_ask
         event = kwargs.pop('event')
         self.all_optional = kwargs.pop('all_optional', False)
+        self.attendee_addresses_required = event.settings.attendee_addresses_required and not self.all_optional
 
         super().__init__(*args, **kwargs)
 
@@ -676,7 +682,7 @@ class BaseQuestionsForm(forms.Form):
 
         if item.ask_attendee_data and event.settings.attendee_addresses_asked:
             add_fields['street'] = forms.CharField(
-                required=event.settings.attendee_addresses_required and not self.all_optional,
+                required=self.attendee_addresses_required,
                 label=_('Address'),
                 widget=forms.Textarea(attrs={
                     'rows': 2,
@@ -686,7 +692,7 @@ class BaseQuestionsForm(forms.Form):
                 initial=(cartpos.street if cartpos else orderpos.street),
             )
             add_fields['zipcode'] = forms.CharField(
-                required=event.settings.attendee_addresses_required and not self.all_optional,
+                required=False,
                 max_length=30,
                 label=_('ZIP code'),
                 initial=(cartpos.zipcode if cartpos else orderpos.zipcode),
@@ -695,7 +701,7 @@ class BaseQuestionsForm(forms.Form):
                 }),
             )
             add_fields['city'] = forms.CharField(
-                required=event.settings.attendee_addresses_required and not self.all_optional,
+                required=False,
                 label=_('City'),
                 max_length=255,
                 initial=(cartpos.city if cartpos else orderpos.city),
@@ -707,11 +713,12 @@ class BaseQuestionsForm(forms.Form):
             add_fields['country'] = CountryField(
                 countries=CachedCountries
             ).formfield(
-                required=event.settings.attendee_addresses_required and not self.all_optional,
+                required=self.attendee_addresses_required,
                 label=_('Country'),
                 initial=country,
                 widget=forms.Select(attrs={
                     'autocomplete': 'country',
+                    'data-country-information-url': reverse('js_helpers.states'),
                 }),
             )
             c = [('', pgettext_lazy('address', 'Select state'))]
@@ -946,9 +953,9 @@ class BaseQuestionsForm(forms.Form):
         d = super().clean()
 
         if self.address_validation:
-            self.cleaned_data = d = validate_address(d, True)
+            self.cleaned_data = d = validate_address(d, all_optional=not self.attendee_addresses_required)
 
-        if d.get('city') and d.get('country') and str(d['country']) in COUNTRIES_WITH_STATE_IN_ADDRESS:
+        if d.get('street') and d.get('country') and str(d['country']) in COUNTRIES_WITH_STATE_IN_ADDRESS:
             if not d.get('state'):
                 self.add_error('state', _('This field is required.'))
 
@@ -1005,7 +1012,7 @@ class BaseInvoiceAddressForm(forms.ModelForm):
             'street': forms.Textarea(attrs={
                 'rows': 2,
                 'placeholder': _('Street and Number'),
-                'autocomplete': 'street-address'
+                'autocomplete': 'street-address',
             }),
             'beneficiary': forms.Textarea(attrs={'rows': 3}),
             'country': forms.Select(attrs={
@@ -1018,16 +1025,27 @@ class BaseInvoiceAddressForm(forms.ModelForm):
                 'autocomplete': 'address-level2',
             }),
             'company': forms.TextInput(attrs={
-                'data-display-dependency': '#id_is_business_1',
                 'autocomplete': 'organization',
             }),
-            'vat_id': forms.TextInput(attrs={'data-display-dependency': '#id_is_business_1', 'data-countries-with-vat-id': ','.join(VAT_ID_COUNTRIES)}),
+            'vat_id': forms.TextInput(),
             'internal_reference': forms.TextInput,
         }
         labels = {
             'is_business': ''
         }
 
+    @property
+    def ask_vat_id(self):
+        return self.event.settings.invoice_address_vatid
+
+    @property
+    def address_required(self):
+        return self.event.settings.invoice_address_required
+
+    @property
+    def company_required(self):
+        return self.event.settings.invoice_address_company_required
+
     def __init__(self, *args, **kwargs):
         self.event = event = kwargs.pop('event')
         self.request = kwargs.pop('request', None)
@@ -1039,7 +1057,11 @@ class BaseInvoiceAddressForm(forms.ModelForm):
             kwargs['initial']['country'] = guess_country_from_request(self.request, self.event)
 
         super().__init__(*args, **kwargs)
-        if not event.settings.invoice_address_vatid:
+
+        self.fields["company"].widget.attrs["data-display-dependency"] = f'input[name="{self.add_prefix("is_business")}"][value="business"]'
+        self.fields["vat_id"].widget.attrs["data-display-dependency"] = f'input[name="{self.add_prefix("is_business")}"][value="business"]'
+
+        if not self.ask_vat_id:
             del self.fields['vat_id']
         elif self.validate_vat_id:
             self.fields['vat_id'].help_text = '<br/>'.join([
@@ -1055,6 +1077,7 @@ class BaseInvoiceAddressForm(forms.ModelForm):
             ])
 
         self.fields['country'].choices = CachedCountries()
+        self.fields['country'].widget.attrs['data-country-information-url'] = reverse('js_helpers.states')
 
         c = [('', pgettext_lazy('address', 'Select state'))]
         fprefix = self.prefix + '-' if self.prefix else ''
@@ -1083,18 +1106,22 @@ class BaseInvoiceAddressForm(forms.ModelForm):
         )
         self.fields['state'].widget.is_required = True
 
+        self.fields['street'].required = False
+        self.fields['zipcode'].required = False
+        self.fields['city'].required = False
+
         # Without JavaScript the VAT ID field is not hidden, so we empty the field if a country outside the EU is selected.
         if cc and not ask_for_vat_id(cc) and fprefix + 'vat_id' in self.data:
             self.data = self.data.copy()
             del self.data[fprefix + 'vat_id']
 
-        if not event.settings.invoice_address_required or self.all_optional:
+        if not self.address_required or self.all_optional:
             for k, f in self.fields.items():
                 f.required = False
                 f.widget.is_required = False
                 if 'required' in f.widget.attrs:
                     del f.widget.attrs['required']
-        elif event.settings.invoice_address_company_required and not self.all_optional:
+        elif self.company_required and not self.all_optional:
             self.initial['is_business'] = True
 
             self.fields['is_business'].widget = BusinessBooleanRadio(require_business=True)
@@ -1111,17 +1138,18 @@ class BaseInvoiceAddressForm(forms.ModelForm):
             label=_('Name'),
             initial=self.instance.name_parts,
         )
-        if event.settings.invoice_address_required and not event.settings.invoice_address_company_required and not self.all_optional:
+        if self.address_required and not self.company_required and not self.all_optional:
             if not event.settings.invoice_name_required:
-                self.fields['name_parts'].widget.attrs['data-required-if'] = '#id_is_business_0'
+                self.fields['name_parts'].widget.attrs['data-required-if'] = f'input[name="{self.add_prefix("is_business")}"][value="individual"]'
             self.fields['name_parts'].widget.attrs['data-no-required-attr'] = '1'
-            self.fields['company'].widget.attrs['data-required-if'] = '#id_is_business_1'
+            self.fields['company'].widget.attrs['data-required-if'] = f'input[name="{self.add_prefix("is_business")}"][value="business"]'
 
         if not event.settings.invoice_address_beneficiary:
             del self.fields['beneficiary']
 
         if event.settings.invoice_address_custom_field:
             self.fields['custom_field'].label = event.settings.invoice_address_custom_field
+            self.fields['custom_field'].help_text = event.settings.invoice_address_custom_field_helptext
         else:
             del self.fields['custom_field']
 
@@ -1134,16 +1162,19 @@ class BaseInvoiceAddressForm(forms.ModelForm):
             validate_address  # local import to prevent impact on startup time
 
         data = self.cleaned_data
+
         if not data.get('is_business'):
             data['company'] = ''
             data['vat_id'] = ''
         if data.get('is_business') and not ask_for_vat_id(data.get('country')):
             data['vat_id'] = ''
-        if self.event.settings.invoice_address_required:
+        if self.address_validation and self.address_required and not self.all_optional:
             if data.get('is_business') and not data.get('company'):
-                raise ValidationError(_('You need to provide a company name.'))
-            if not data.get('is_business') and not data.get('name_parts'):
+                raise ValidationError({"company": _('You need to provide a company name.')})
+            if not data.get('is_business') and name_parts_is_empty(data.get('name_parts', {})):
                 raise ValidationError(_('You need to provide your name.'))
+            if not data.get('street') and not data.get('zipcode') and not data.get('city'):
+                raise ValidationError({"street": _('This field is required.')})
 
         if 'vat_id' in self.changed_data or not data.get('vat_id'):
             self.instance.vat_id_validated = False
@@ -1155,7 +1186,7 @@ class BaseInvoiceAddressForm(forms.ModelForm):
 
         if all(
                 not v for k, v in data.items() if k not in ('is_business', 'country', 'name_parts')
-        ) and len(data.get('name_parts', {})) == 1:
+        ) and name_parts_is_empty(data.get('name_parts', {})):
             # Do not save the country if it is the only field set -- we don't know the user even checked it!
             self.cleaned_data['country'] = ''
 

src/pretix/base/forms/user.py

@@ -48,10 +48,10 @@ from pretix.control.forms import SingleLanguageWidget
 
 class UserSettingsForm(forms.ModelForm):
     error_messages = {
-        'duplicate_identifier': _("There already is an account associated with this e-mail address. "
+        'duplicate_identifier': _("There already is an account associated with this email address. "
                                   "Please choose a different one."),
-        'pw_current': _("Please enter your current password if you want to change your e-mail "
-                        "address or password."),
+        'pw_current': _("Please enter your current password if you want to change your email address "
+                        "or password."),
         'pw_current_wrong': _("The current password you entered was not correct."),
         'pw_mismatch': _("Please enter the same password twice"),
         'rate_limit': _("For security reasons, please wait 5 minutes before you try again."),

src/pretix/base/forms/widgets.py

@@ -38,6 +38,7 @@ from datetime import datetime
 from django import forms
 from django.utils.formats import get_format
 from django.utils.functional import lazy
+from django.utils.html import escape
 from django.utils.timezone import get_current_timezone, now
 from django.utils.translation import gettext_lazy as _
 
@@ -64,7 +65,7 @@ def format_placeholders_help_text(placeholders, event=None):
     placeholders = [(k, v.render_sample(event) if event else v) for k, v in placeholders.items()]
     placeholders.sort(key=lambda x: x[0])
     phs = [
-        '<button type="button" class="content-placeholder" title="%s">{%s}</button>' % (_("Sample: %s") % v if v else "", k)
+        '<button type="button" class="content-placeholder" title="%s">{%s}</button>' % (escape(_("Sample: %s") % v) if v else "", escape(k))
         for k, v in placeholders
     ]
     return _('Available placeholders: {list}').format(

src/pretix/base/invoice.py

@@ -62,6 +62,58 @@ from pretix.presale.style import get_fonts
 logger = logging.getLogger(__name__)
 
 
+def addon_aware_groupby(iterable, key, is_addon):
+    """
+    We use groupby() to visually group identical lines on an invoice. For example, instead of
+
+    Product 1       5.00 EUR
+    Product 1       5.00 EUR
+    Product 1       5.00 EUR
+    Product 2       7.00 EUR
+
+    We want to print
+
+    3x Product 1    5.00 EUR = 15.00 EUR
+    Product 2       7.00 EUR
+
+    However, this fails for setups with addon-products since groupby() only groups consecutive
+    lines with the same identity. So in
+
+    Product 1       5.00 EUR
+    + Addon 1       2.00 EUR
+    Product 1       5.00 EUR
+    + Addon 1       2.00 EUR
+    Product 1       5.00 EUR
+    + Addon 2       3.00 EUR
+
+    There is no consecutive repetition of the same entity. This function provides a specialised groupby which
+    understands the product/addon relationship and packs groups of these addons together if they are, in fact,
+    identical groups:
+
+    2x Product 1    5.00 EUR = 10.00 EUR
+    + 2x Addon 1    2.00 EUR =  4.00 EUR
+    Product 1       5.00 EUR
+    + Addon 2       3.00 EUR
+    """
+    packed_groups = []
+
+    for i in iterable:
+        if is_addon(i):
+            packed_groups[-1].append(i)
+        else:
+            packed_groups.append([i])
+    # Each packed_groups element contains a list with the parent product as first element, and any addon products following
+
+    def _reorder(packed_groups):
+        # Emit the products as individual products again, reordered by "all parent products, then all addon products"
+        # within each group.
+        for _, repeated_groups in groupby(packed_groups, key=lambda g: tuple(key(a) for a in g)):
+            for repeated_items in zip(*repeated_groups):
+                yield from repeated_items
+
+    return groupby(_reorder(packed_groups), key)
+
+
 class NumberedCanvas(Canvas):
     def __init__(self, *args, **kwargs):
         self.font_regular = kwargs.pop('font_regular')
@@ -289,7 +341,7 @@ class BaseReportlabInvoiceRenderer(BaseInvoiceRenderer):
     def _clean_text(self, text, tags=None):
         return self._normalize(bleach.clean(
             text,
-            tags=tags or []
+            tags=set(tags) if tags else set()
         ).strip().replace('<br>', '<br />').replace('\n', '<br />\n'))
 
 
@@ -388,6 +440,15 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
             except:
                 logger.exception("Can not resize image")
                 pass
+            try:
+                # Valid ZUGFeRD invoices must be compliant with PDF/A-3. pretix-zugferd ensures this by passing them
+                # through ghost script. Unfortunately, if the logo contains transparency, this will still fail.
+                # I was unable to figure out a way to fix this in GhostScript, so the easy fix is to remove the
+                # transparency, as our invoices always have a white background anyways.
+                ir.remove_transparency()
+            except:
+                logger.exception("Can not remove transparency from logo")
+                pass
             canvas.drawImage(ir,
                              self.logo_left,
                              self.pagesize[1] - self.logo_height - self.logo_top,
@@ -461,7 +522,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
     def _draw_event(self, canvas):
         def shorten(txt):
             txt = str(txt)
-            txt = bleach.clean(txt, tags=[]).strip()
+            txt = bleach.clean(txt, tags=set()).strip()
             p = Paragraph(self._normalize(txt.strip().replace('\n', '<br />\n')), style=self.stylesheet['Normal'])
             p_size = p.wrap(self.event_width, self.event_height)
 
@@ -635,7 +696,11 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
                     line.event_date_from, line.event_date_to)
 
         total = Decimal('0.00')
-        for (description, tax_rate, tax_name, net_value, gross_value, *ignored), lines in groupby(self.invoice.lines.all(), key=_group_key):
+        for (description, tax_rate, tax_name, net_value, gross_value, *ignored), lines in addon_aware_groupby(
+            self.invoice.lines.all(),
+            key=_group_key,
+            is_addon=lambda l: l.description.startswith("  +"),
+        ):
             lines = list(lines)
             if has_taxes:
                 if len(lines) > 1:
@@ -775,7 +840,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
 
         for idx, gross in grossvalue_map.items():
             rate, name = idx
-            if rate == 0:
+            if rate == 0 and gross == 0:
                 continue
             tax = taxvalue_map[idx]
             tdata.append([
@@ -792,7 +857,7 @@ class ClassicInvoiceRenderer(BaseReportlabInvoiceRenderer):
             except ValueError:
                 return localize(val) + ' ' + self.invoice.foreign_currency_display
 
-        if len(tdata) > 1 and has_taxes:
+        if any(rate != 0 and gross != 0 for (rate, name), gross in grossvalue_map.items()) and has_taxes:
             colwidths = [a * doc.width for a in (.25, .15, .15, .15, .3)]
             table = Table(tdata, colWidths=colwidths, repeatRows=2, hAlign=TA_LEFT)
             table.setStyle(TableStyle(tstyledata))

src/pretix/base/logentrytype_registry.py

@@ -0,0 +1,165 @@
+#
+# 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 collections import defaultdict
+from typing import Optional
+
+from django.urls import reverse
+from django.utils.html import format_html
+from django.utils.translation import gettext_lazy as _
+
+from pretix.base.signals import EventPluginRegistry
+
+
+def make_link(a_map, wrapper, is_active=True, event=None, plugin_name=None):
+    if a_map:
+        if 'href' not in a_map:
+            a_map['val'] = format_html('<i>{val}</i>', **a_map)
+        elif is_active:
+            a_map['val'] = format_html('<a href="{href}">{val}</a>', **a_map)
+        elif event and plugin_name:
+            a_map['val'] = format_html(
+                '<i>{val}</i> <a href="{plugin_href}">'
+                '<span data-toggle="tooltip" title="{errmes}" class="fa fa-warning fa-fw"></span></a>',
+                **a_map,
+                errmes=_("The relevant plugin is currently not active. To activate it, click here to go to the plugin settings."),
+                plugin_href=reverse('control:event.settings.plugins', kwargs={
+                    'organizer': event.organizer.slug,
+                    'event': event.slug,
+                }) + '#plugin_' + plugin_name,
+            )
+        else:
+            a_map['val'] = format_html(
+                '<i>{val}</i> <span data-toggle="tooltip" title="{errmes}" class="fa fa-warning fa-fw"></span>',
+                **a_map,
+                errmes=_("The relevant plugin is currently not active."),
+            )
+        return format_html(wrapper, **a_map)
+
+
+class LogEntryTypeRegistry(EventPluginRegistry):
+    def __init__(self):
+        super().__init__({'action_type': lambda o: getattr(o, 'action_type')})
+
+    def register(self, *objs):
+        for obj in objs:
+            if not isinstance(obj, LogEntryType):
+                raise TypeError('Entries must be derived from LogEntryType')
+
+            if obj.__module__.startswith('pretix.base.'):
+                raise TypeError('Must not register base classes, only derived ones')
+
+        return super().register(*objs)
+
+    def new_from_dict(self, data):
+        """
+        Register multiple instance of a `LogEntryType` class with different `action_type`
+        and plain text strings, as given by the items of the specified data dictionary.
+
+        This method is designed to be used as a decorator as follows:
+
+        .. code-block:: python
+
+            @log_entry_types.new_from_dict({
+                'pretix.event.item.added': _('The product has been created.'),
+                'pretix.event.item.changed': _('The product has been changed.'),
+                # ...
+            })
+            class CoreItemLogEntryType(ItemLogEntryType):
+                # ...
+
+        :param data: action types and descriptions
+                     ``{"some_action_type": "Plain text description", ...}``
+        """
+        def reg(clz):
+            for action_type, plain in data.items():
+                self.register(clz(action_type=action_type, plain=plain))
+            return clz
+        return reg
+
+
+"""
+Registry for LogEntry types.
+
+Each entry in this registry should be an instance of a subclass of ``LogEntryType``.
+They are annotated with their ``action_type`` and the defining ``plugin``.
+"""
+log_entry_types = LogEntryTypeRegistry()
+
+
+class LogEntryType:
+    """
+    Base class for a type of LogEntry, identified by its action_type.
+    """
+
+    def __init__(self, action_type=None, plain=None):
+        if action_type:
+            self.action_type = action_type
+        if plain:
+            self.plain = plain
+
+    def display(self, logentry, data):
+        """
+        Returns the message to be displayed for a given logentry of this type.
+
+        :return: `str` or `LazyI18nString`
+        """
+        if hasattr(self, 'plain'):
+            plain = str(self.plain)
+            if '{' in plain:
+                data = defaultdict(lambda: '?', data)
+                return plain.format_map(data)
+            else:
+                return plain
+
+    def get_object_link_info(self, logentry) -> Optional[dict]:
+        """
+        Return information to generate a link to the `content_object` of a given log entry.
+
+        Not implemented in the base class, causing the object link to be omitted.
+
+        :return: Dictionary with the keys ``href`` (URL to view/edit the object) and
+                 ``val`` (text for the anchor element)
+        """
+        pass
+
+    def get_object_link(self, logentry):
+        a_map = self.get_object_link_info(logentry)
+        return make_link(a_map, self.object_link_wrapper)
+
+    object_link_wrapper = '{val}'
+
+    def shred_pii(self, logentry):
+        """
+        To be used for shredding personally identified information contained in the data field of a LogEntry of this
+        type.
+        """
+        raise NotImplementedError
+
+
+class NoOpShredderMixin:
+    def shred_pii(self, logentry):
+        pass
+
+
+class ClearDataShredderMixin:
+    def shred_pii(self, logentry):
+        logentry.data = None

src/pretix/base/logentrytypes.py

@@ -0,0 +1,147 @@
+#
+# 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 typing import Optional
+
+from django.urls import reverse
+from django.utils.translation import gettext_lazy as _, pgettext_lazy
+
+from pretix.base.models import (
+    Discount, Item, ItemCategory, Order, Question, Quota, SubEvent, TaxRule,
+    Voucher,
+)
+
+from .logentrytype_registry import (  # noqa
+    ClearDataShredderMixin, LogEntryType, NoOpShredderMixin, log_entry_types,
+    make_link, LogEntryTypeRegistry,
+)
+
+
+class EventLogEntryType(LogEntryType):
+    """
+    Base class for any `LogEntry` type whose `content_object` is either an `Event` itself or belongs to a specific `Event`.
+    """
+
+    def get_object_link_info(self, logentry) -> Optional[dict]:
+        if hasattr(self, 'object_link_viewname'):
+            content = logentry.content_object
+            if not content:
+                if logentry.content_type_id:
+                    return {
+                        'val': _('(deleted)'),
+                    }
+                else:
+                    return
+
+            if hasattr(self, 'content_type') and not isinstance(content, self.content_type):
+                return
+
+            return {
+                'href': reverse(self.object_link_viewname, kwargs={
+                    'event': logentry.event.slug,
+                    'organizer': logentry.event.organizer.slug,
+                    **self.object_link_args(content),
+                }),
+                'val': self.object_link_display_name(logentry.content_object),
+            }
+
+    def object_link_args(self, content_object):
+        """Return the kwargs for the url used in a link to content_object."""
+        if hasattr(self, 'object_link_argname'):
+            return {self.object_link_argname: content_object.pk}
+        return {}
+
+    def object_link_display_name(self, content_object):
+        """Return the display name to refer to content_object in the user interface."""
+        return str(content_object)
+
+
+class OrderLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Order {val}')
+    object_link_viewname = 'control:event.order'
+    content_type = Order
+
+    def object_link_args(self, order):
+        return {'code': order.code}
+
+    def object_link_display_name(self, order):
+        return order.code
+
+
+class VoucherLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Voucher {val}…')
+    object_link_viewname = 'control:event.voucher'
+    object_link_argname = 'voucher'
+    content_type = Voucher
+
+    def object_link_display_name(self, voucher):
+        if len(voucher.code) > 6:
+            return voucher.code[:6] + "…"
+        return voucher.code
+
+
+class ItemLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Product {val}')
+    object_link_viewname = 'control:event.item'
+    object_link_argname = 'item'
+    content_type = Item
+
+
+class SubEventLogEntryType(EventLogEntryType):
+    object_link_wrapper = pgettext_lazy('subevent', 'Date {val}')
+    object_link_viewname = 'control:event.subevent'
+    object_link_argname = 'subevent'
+    content_type = SubEvent
+
+
+class QuotaLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Quota {val}')
+    object_link_viewname = 'control:event.items.quotas.show'
+    object_link_argname = 'quota'
+    content_type = Quota
+
+
+class DiscountLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Discount {val}')
+    object_link_viewname = 'control:event.items.discounts.edit'
+    object_link_argname = 'discount'
+    content_type = Discount
+
+
+class ItemCategoryLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Category {val}')
+    object_link_viewname = 'control:event.items.categories.edit'
+    object_link_argname = 'category'
+    content_type = ItemCategory
+
+
+class QuestionLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Question {val}')
+    object_link_viewname = 'control:event.items.questions.show'
+    object_link_argname = 'question'
+    content_type = Question
+
+
+class TaxRuleLogEntryType(EventLogEntryType):
+    object_link_wrapper = _('Tax rule {val}')
+    object_link_viewname = 'control:event.settings.tax.edit'
+    object_link_argname = 'rule'
+    content_type = TaxRule

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

@@ -36,6 +36,7 @@ import time
 import traceback
 
 from django.conf import settings
+from django.core.cache import cache
 from django.core.management.base import BaseCommand
 from django.dispatch.dispatcher import NO_RECEIVERS
 
@@ -50,17 +51,23 @@ class Command(BaseCommand):
     def add_arguments(self, parser):
         parser.add_argument('--tasks', action='store', type=str, help='Only execute the tasks with this name '
                                                                       '(dotted path, comma separation)')
+        parser.add_argument('--list-tasks', action='store_true', help='Only list all tasks')
         parser.add_argument('--exclude', action='store', type=str, help='Exclude the tasks with this name '
                                                                         '(dotted path, comma separation)')
 
     def handle(self, *args, **options):
         verbosity = int(options['verbosity'])
 
+        cache.set("pretix_runperiodic_executed", True, 3600 * 12)
+
         if not periodic_task.receivers or periodic_task.sender_receivers_cache.get(self) is NO_RECEIVERS:
             return
 
         for receiver in periodic_task._live_receivers(self):
             name = f'{receiver.__module__}.{receiver.__name__}'
+            if options['list_tasks']:
+                print(name)
+                continue
             if options.get('tasks'):
                 if name not in options.get('tasks').split(','):
                     continue
@@ -74,7 +81,7 @@ class Command(BaseCommand):
             try:
                 r = receiver(signal=periodic_task, sender=self)
             except Exception as err:
-                if isinstance(Exception, KeyboardInterrupt):
+                if isinstance(err, KeyboardInterrupt):
                     raise err
                 if settings.SENTRY_ENABLED:
                     from sentry_sdk import capture_exception

src/pretix/base/media.py

@@ -37,6 +37,16 @@ class BaseMediaType:
     def verbose_name(self):
         raise NotImplementedError()
 
+    @property
+    def icon(self):
+        """
+        This can be:
+
+        - The name of a Font Awesome icon to represent this channel type.
+        - The name of a SVG icon file that is resolvable through the static file system. We recommend to design for a size of 18x14 pixels.
+        """
+        return "circle"
+
     def generate_identifier(self, organizer):
         if self.medium_created_by_server:
             raise NotImplementedError()
@@ -59,6 +69,7 @@ class BaseMediaType:
 class BarcodePlainMediaType(BaseMediaType):
     identifier = 'barcode'
     verbose_name = _('Barcode / QR-Code')
+    icon = 'qrcode'
     medium_created_by_server = True
     supports_giftcard = False
     supports_orderposition = True
@@ -75,6 +86,7 @@ class BarcodePlainMediaType(BaseMediaType):
 class NfcUidMediaType(BaseMediaType):
     identifier = 'nfc_uid'
     verbose_name = _('NFC UID-based')
+    icon = 'pretixbase/img/media/nfc_uid.svg'
     medium_created_by_server = False
     supports_giftcard = True
     supports_orderposition = False
@@ -114,6 +126,7 @@ class NfcUidMediaType(BaseMediaType):
 class NfcMf0aesMediaType(BaseMediaType):
     identifier = 'nfc_mf0aes'
     verbose_name = 'NFC Mifare Ultralight AES'
+    icon = 'pretixbase/img/media/nfc_secure.svg'
     medium_created_by_server = False
     supports_giftcard = True
     supports_orderposition = False

src/pretix/base/migrations/0001_initial.py

@@ -29,7 +29,7 @@ class Migration(migrations.Migration):
                 ('password', models.CharField(verbose_name='password', max_length=128)),
                 ('last_login', models.DateTimeField(verbose_name='last login', blank=True, null=True)),
                 ('is_superuser', models.BooleanField(verbose_name='superuser status', default=False, help_text='Designates that this user has all permissions without explicitly assigning them.')),
-                ('email', models.EmailField(max_length=191, blank=True, unique=True, verbose_name='E-mail', null=True,
+                ('email', models.EmailField(max_length=191, blank=True, unique=True, verbose_name='Email', null=True,
                                             db_index=True)),
                 ('givenname', models.CharField(verbose_name='Given name', max_length=255, blank=True, null=True)),
                 ('familyname', models.CharField(verbose_name='Family name', max_length=255, blank=True, null=True)),

src/pretix/base/migrations/0001_squashed_0028_auto_20160816_1242.py

@@ -9,6 +9,7 @@ from decimal import Decimal
 import django.core.validators
 import django.db.models.deletion
 import i18nfield.fields
+from argon2.exceptions import HashingError
 from django.conf import settings
 from django.contrib.auth.hashers import make_password
 from django.db import migrations, models
@@ -25,7 +26,14 @@ def initial_user(apps, schema_editor):
     user = User(email='admin@localhost')
     user.is_staff = True
     user.is_superuser = True
-    user.password = make_password('admin')
+    try:
+        user.password = make_password('admin')
+    except HashingError:
+        raise Exception(
+            "Could not hash password of initial user with argon2id. If this is a system with less than 8 CPU cores, "
+            "you might need to disable argon2id by setting `passwords_argon2=off` in the `[django]` section of the "
+            "pretix.cfg configuration file."
+        )
     user.save()
 
 
@@ -48,7 +56,7 @@ class Migration(migrations.Migration):
                 ('password', models.CharField(max_length=128, verbose_name='password')),
                 ('last_login', models.DateTimeField(blank=True, null=True, verbose_name='last login')),
                 ('is_superuser', models.BooleanField(default=False, help_text='Designates that this user has all permissions without explicitly assigning them.', verbose_name='superuser status')),
-                ('email', models.EmailField(blank=True, db_index=True, max_length=254, null=True, unique=True, verbose_name='E-mail')),
+                ('email', models.EmailField(blank=True, db_index=True, max_length=254, null=True, unique=True, verbose_name='Email')),
                 ('givenname', models.CharField(blank=True, max_length=255, null=True, verbose_name='Given name')),
                 ('familyname', models.CharField(blank=True, max_length=255, null=True, verbose_name='Family name')),
                 ('is_active', models.BooleanField(default=True, verbose_name='Is active')),
@@ -232,7 +240,7 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('code', models.CharField(max_length=16, verbose_name='Order code')),
                 ('status', models.CharField(choices=[('n', 'pending'), ('p', 'paid'), ('e', 'expired'), ('c', 'cancelled'), ('r', 'refunded')], max_length=3, verbose_name='Status')),
-                ('email', models.EmailField(blank=True, max_length=254, null=True, verbose_name='E-mail')),
+                ('email', models.EmailField(blank=True, max_length=254, null=True, verbose_name='Email')),
                 ('locale', models.CharField(blank=True, max_length=32, null=True, verbose_name='Locale')),
                 ('secret', models.CharField(default=pretix.base.models.orders.generate_secret, max_length=32)),
                 ('datetime', models.DateTimeField(verbose_name='Date')),

src/pretix/base/migrations/0002_auto_20160209_0940.py

@@ -187,7 +187,7 @@ class Migration(migrations.Migration):
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('code', models.CharField(max_length=16, verbose_name='Order code')),
                 ('status', models.CharField(choices=[('n', 'pending'), ('p', 'paid'), ('e', 'expired'), ('c', 'cancelled'), ('r', 'refunded')], max_length=3, verbose_name='Status')),
-                ('email', models.EmailField(blank=True, max_length=254, null=True, verbose_name='E-mail')),
+                ('email', models.EmailField(blank=True, max_length=254, null=True, verbose_name='Email')),
                 ('locale', models.CharField(blank=True, max_length=32, null=True, verbose_name='Locale')),
                 ('secret', models.CharField(default=pretix.base.models.orders.generate_secret, max_length=32)),
                 ('datetime', models.DateTimeField(verbose_name='Date')),

src/pretix/base/migrations/0051_auto_20170206_2027.py

@@ -20,7 +20,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('created', models.DateTimeField(auto_now_add=True, verbose_name='On waiting list since')),
-                ('email', models.EmailField(max_length=254, verbose_name='E-mail address')),
+                ('email', models.EmailField(max_length=254, verbose_name='Email address')),
                 ('locale', models.CharField(default='en', max_length=190)),
                 ('event', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='waitinglistentries', to='pretixbase.Event', verbose_name='Event')),
                 ('item', models.ForeignKey(help_text='The product the user waits for.', on_delete=django.db.models.deletion.CASCADE, related_name='waitinglistentries', to='pretixbase.Item', verbose_name='Product')),

src/pretix/base/migrations/0051_auto_20170206_2027_squashed_0057_auto_20170501_2116.py

@@ -35,7 +35,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('created', models.DateTimeField(auto_now_add=True, verbose_name='On waiting list since')),
-                ('email', models.EmailField(max_length=254, verbose_name='E-mail address')),
+                ('email', models.EmailField(max_length=254, verbose_name='Email address')),
                 ('locale', models.CharField(default='en', max_length=190)),
                 ('event', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='waitinglistentries', to='pretixbase.Event', verbose_name='Event')),
                 ('item', models.ForeignKey(help_text='The product the user waits for.', on_delete=django.db.models.deletion.CASCADE, related_name='waitinglistentries', to='pretixbase.Item', verbose_name='Product')),

src/pretix/base/migrations/0077_auto_20171124_1629_squashed_0088_auto_20180328_1217.py

@@ -163,7 +163,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('action_type', models.CharField(max_length=255)),
-                ('method', models.CharField(choices=[('mail', 'E-mail')], max_length=255)),
+                ('method', models.CharField(choices=[('mail', 'Email')], max_length=255)),
                 ('event', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE,
                                             to='pretixbase.Event')),
                 ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),

src/pretix/base/migrations/0078_auto_20171206_1603.py

@@ -21,7 +21,7 @@ class Migration(migrations.Migration):
             fields=[
                 ('id', models.AutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                 ('action_type', models.CharField(max_length=255)),
-                ('method', models.CharField(choices=[('mail', 'E-mail')], max_length=255)),
+                ('method', models.CharField(choices=[('mail', 'Email')], max_length=255)),
                 ('event', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.CASCADE, to='pretixbase.Event')),
                 ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
                 ('enabled', models.BooleanField(default=True)),

src/pretix/base/migrations/0270_historicpassword.py

@@ -0,0 +1,36 @@
+# Generated by Django 4.2.15 on 2024-09-16 15:10
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0269_order_api_meta"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="HistoricPassword",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True, primary_key=True, serialize=False
+                    ),
+                ),
+                ("created", models.DateTimeField(auto_now_add=True)),
+                ("password", models.CharField(max_length=128)),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="historic_passwords",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+        ),
+    ]

src/pretix/base/migrations/0271_itemcategory_cross_selling.py

@@ -0,0 +1,32 @@
+# Generated by Django 4.2.11 on 2024-05-27 13:19
+
+from django.db import migrations, models
+
+import pretix.base.models.orders
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0270_historicpassword"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="itemcategory",
+            name="cross_selling_condition",
+            field=models.CharField(null=True, max_length=10),
+        ),
+        migrations.AddField(
+            model_name="itemcategory",
+            name="cross_selling_mode",
+            field=models.CharField(null=True, max_length=5),
+        ),
+        migrations.AddField(
+            model_name="itemcategory",
+            name="cross_selling_match_products",
+            field=models.ManyToManyField(
+                related_name="matched_by_cross_selling_categories", to="pretixbase.item"
+            ),
+        ),
+    ]

src/pretix/base/migrations/0272_printlog.py

@@ -0,0 +1,79 @@
+# Generated by Django 4.2.16 on 2024-09-19 10:41
+
+import django.db.models.deletion
+import django.utils.timezone
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        migrations.swappable_dependency(settings.OAUTH2_PROVIDER_APPLICATION_MODEL),
+        ("pretixbase", "0271_itemcategory_cross_selling"),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name="PrintLog",
+            fields=[
+                (
+                    "id",
+                    models.BigAutoField(
+                        auto_created=True, primary_key=True, serialize=False
+                    ),
+                ),
+                ("datetime", models.DateTimeField(default=django.utils.timezone.now)),
+                ("created", models.DateTimeField(auto_now_add=True, null=True)),
+                ("successful", models.BooleanField(default=True)),
+                ("source", models.CharField(max_length=255)),
+                ("type", models.CharField(max_length=255)),
+                ("info", models.JSONField(default=dict)),
+                (
+                    "api_token",
+                    models.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to="pretixbase.teamapitoken",
+                    ),
+                ),
+                (
+                    "device",
+                    models.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.PROTECT,
+                        related_name="print_logs",
+                        to="pretixbase.device",
+                    ),
+                ),
+                (
+                    "oauth_application",
+                    models.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.PROTECT,
+                        to=settings.OAUTH2_PROVIDER_APPLICATION_MODEL,
+                    ),
+                ),
+                (
+                    "position",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="print_logs",
+                        to="pretixbase.orderposition",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        null=True,
+                        on_delete=django.db.models.deletion.PROTECT,
+                        related_name="print_logs",
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+            options={
+                "ordering": ("-datetime",),
+            },
+        ),
+    ]

src/pretix/base/migrations/0273_remove_checkinlist_auto_checkin_sales_channels.py

@@ -0,0 +1,48 @@
+# Generated by Django 4.2.16 on 2024-10-29 15:03
+
+from django.db import migrations
+
+
+def migrate_autocheckin(apps, schema_editor):
+    CheckinList = apps.get_model("pretixbase", "CheckinList")
+    AutoCheckinRule = apps.get_model("autocheckin", "AutoCheckinRule")
+
+    for cl in CheckinList.objects.filter(auto_checkin_sales_channels__isnull=False).select_related("event", "event__organizer"):
+        sales_channels = cl.auto_checkin_sales_channels.all()
+        all_sales_channels = cl.event.organizer.sales_channels.all()
+
+        if "pretix.plugins.autocheckin" not in cl.event.plugins:
+            cl.event.plugins = cl.event.plugins + ",pretix.plugins.autocheckin"
+            cl.event.save()
+
+        r = AutoCheckinRule.objects.get_or_create(
+            list=cl,
+            event=cl.event,
+            all_products=True,
+            all_payment_methods=True,
+            defaults=dict(
+                mode="placed",
+                all_sales_channels=len(sales_channels) == len(all_sales_channels),
+            )
+        )[0]
+        if len(sales_channels) != len(all_sales_channels):
+            r.limit_sales_channels.set(sales_channels)
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0272_printlog"),
+        ("autocheckin", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.RunPython(
+            migrate_autocheckin,
+            migrations.RunPython.noop,
+        ),
+        migrations.RemoveField(
+            model_name="checkinlist",
+            name="auto_checkin_sales_channels",
+        ),
+    ]

src/pretix/base/migrations/0274_tax_codes.py

@@ -0,0 +1,41 @@
+# Generated by Django 4.2.8 on 2024-07-02 10:34
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        (
+            "pretixbase",
+            "0273_remove_checkinlist_auto_checkin_sales_channels",
+        ),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="invoiceline",
+            name="tax_code",
+            field=models.CharField(max_length=190, null=True),
+        ),
+        migrations.AddField(
+            model_name="orderfee",
+            name="tax_code",
+            field=models.CharField(max_length=190, null=True),
+        ),
+        migrations.AddField(
+            model_name="orderposition",
+            name="tax_code",
+            field=models.CharField(max_length=190, null=True),
+        ),
+        migrations.AddField(
+            model_name="taxrule",
+            name="code",
+            field=models.CharField(max_length=190, null=True),
+        ),
+        migrations.AddField(
+            model_name="transaction",
+            name="tax_code",
+            field=models.CharField(max_length=190, null=True),
+        ),
+    ]

src/pretix/base/migrations/0275_alter_question_valid_number_max_and_more.py

@@ -0,0 +1,23 @@
+# Generated by Django 4.2.17 on 2025-01-13 14:55
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0274_tax_codes"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="question",
+            name="valid_number_max",
+            field=models.DecimalField(decimal_places=6, max_digits=30, null=True),
+        ),
+        migrations.AlterField(
+            model_name="question",
+            name="valid_number_min",
+            field=models.DecimalField(decimal_places=6, max_digits=30, null=True),
+        ),
+    ]

src/pretix/base/migrations/0276_item_hidden_if_item_available_mode.py

@@ -0,0 +1,18 @@
+# Generated by Django 4.2.16 on 2025-01-23 11:27
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("pretixbase", "0275_alter_question_valid_number_max_and_more"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="item",
+            name="hidden_if_item_available_mode",
+            field=models.CharField(default="hide", max_length=16),
+        ),
+    ]

src/pretix/base/modelimport.py

@@ -213,7 +213,13 @@ class DatetimeColumnMixin:
             except (ValueError, TypeError):
                 pass
         else:
-            raise ValidationError(_("Could not parse {value} as a date and time.").format(value=value))
+            try:
+                d = datetime.datetime.fromisoformat(value)
+                if not d.tzinfo:
+                    d = d.replace(tzinfo=self.timezone)
+                return d
+            except (ValueError, TypeError):
+                raise ValidationError(_("Could not parse {value} as a date and time.").format(value=value))
 
 
 class DecimalColumnMixin:
@@ -250,6 +256,9 @@ class SubeventColumnMixin:
         ]
 
     def clean(self, value, previous_values):
+        if not value:
+            return None
+
         if value in self._subevent_cache:
             return self._subevent_cache[value]
 

src/pretix/base/modelimport_orders.py

@@ -40,8 +40,8 @@ from phonenumbers import SUPPORTED_REGIONS
 
 from pretix.base.forms.questions import guess_country
 from pretix.base.modelimport import (
-    DatetimeColumnMixin, DecimalColumnMixin, ImportColumn, SubeventColumnMixin,
-    i18n_flat,
+    BooleanColumnMixin, DatetimeColumnMixin, DecimalColumnMixin, ImportColumn,
+    SubeventColumnMixin, i18n_flat,
 )
 from pretix.base.models import (
     Customer, ItemVariation, OrderPosition, Question, QuestionAnswer,
@@ -56,7 +56,7 @@ from pretix.base.signals import order_import_columns
 
 class EmailColumn(ImportColumn):
     identifier = 'email'
-    verbose_name = gettext_lazy('E-mail address')
+    verbose_name = gettext_lazy('Email address')
 
     def clean(self, value, previous_values):
         if value:
@@ -322,7 +322,7 @@ class AttendeeNamePart(ImportColumn):
 
 class AttendeeEmail(ImportColumn):
     identifier = 'attendee_email'
-    verbose_name = gettext_lazy('Attendee e-mail address')
+    verbose_name = gettext_lazy('Attendee email address')
 
     def clean(self, value, previous_values):
         if value:
@@ -441,6 +441,7 @@ class Price(DecimalColumnMixin, ImportColumn):
         position.price = p.gross
         position.tax_rule = position.item.tax_rule
         position.tax_rate = p.rate
+        position.tax_code = p.code
         position.tax_value = p.tax
 
 
@@ -584,7 +585,7 @@ class SeatColumn(ImportColumn):
                 raise ValidationError(_('Multiple matching seats were found.'))
             except Seat.DoesNotExist:
                 raise ValidationError(_('No matching seat was found.'))
-            if not value.is_available() or value in self._cached:
+            if not value.is_available(sales_channel=previous_values.get('sales_channel')) or value in self._cached:
                 raise ValidationError(
                     _('The seat you selected has already been taken. Please select a different seat.'))
             self._cached.add(value)
@@ -604,6 +605,22 @@ class Comment(ImportColumn):
         order.comment = value or ''
 
 
+class CheckinAttentionColumn(BooleanColumnMixin, ImportColumn):
+    identifier = 'checkin_attention'
+    verbose_name = gettext_lazy('Requires special attention')
+
+    def assign(self, value, order, position, invoice_address, **kwargs):
+        order.checkin_attention = value
+
+
+class CheckinTextColumn(ImportColumn):
+    identifier = 'checkin_text'
+    verbose_name = gettext_lazy('Check-in text')
+
+    def assign(self, value, order, position, invoice_address, **kwargs):
+        order.checkin_text = value
+
+
 class QuestionColumn(ImportColumn):
     def __init__(self, event, q):
         self.q = q
@@ -737,11 +754,13 @@ def get_order_import_columns(event):
         AttendeeState(event),
         Price(event),
         Secret(event),
+        Saleschannel(event),
         SeatColumn(event),
         ValidFrom(event),
         ValidUntil(event),
         Locale(event),
-        Saleschannel(event),
+        CheckinAttentionColumn(event),
+        CheckinTextColumn(event),
         Expires(event),
         Comment(event),
     ]

src/pretix/base/models/auth.py

@@ -241,7 +241,7 @@ class User(AbstractBaseUser, PermissionsMixin, LoggingMixin):
     REQUIRED_FIELDS = []
 
     email = models.EmailField(unique=True, db_index=True, null=True, blank=True,
-                              verbose_name=_('E-mail'), max_length=190)
+                              verbose_name=_('Email'), max_length=190)
     fullname = models.CharField(max_length=255, blank=True, null=True,
                                 verbose_name=_('Full name'))
     is_active = models.BooleanField(default=True,
@@ -571,13 +571,23 @@ class User(AbstractBaseUser, PermissionsMixin, LoggingMixin):
 
     def get_session_auth_hash(self):
         """
-        Return an HMAC that needs to
+        Return an HMAC that needs to be the same throughout the session, used e.g. for forced
+        logout after every password change.
+        """
+        return self._get_session_auth_hash(secret=settings.SECRET_KEY)
+
+    def get_session_auth_fallback_hash(self):
+        for fallback_secret in settings.SECRET_KEY_FALLBACKS:
+            yield self._get_session_auth_hash(secret=fallback_secret)
+
+    def _get_session_auth_hash(self, secret):
+        """
         """
         key_salt = "pretix.base.models.User.get_session_auth_hash"
         payload = self.password
         payload += self.email
         payload += self.session_token
-        return salted_hmac(key_salt, payload).hexdigest()
+        return salted_hmac(key_salt, payload, secret=secret).hexdigest()
 
     def update_session_token(self):
         self.session_token = generate_session_token()
@@ -654,3 +664,9 @@ class WebAuthnDevice(Device):
     @property
     def webauthnpubkey(self):
         return websafe_decode(self.pub_key)
+
+
+class HistoricPassword(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="historic_passwords")
+    created = models.DateTimeField(auto_now_add=True)
+    password = models.CharField(verbose_name=_("Password"), max_length=128)