feat: repeat license expiration reminders daily

fix: render expiration notifications in bell menu
fix: use NetBox SMTP sender address
2026-07-29 12:44:22 +02:00 · 2026-07-29 12:38:36 +02:00 · 2026-07-29 12:26:57 +02:00 · 2026-07-29 11:28:55 +02:00 · 2026-07-29 11:04:46 +02:00 · 2026-07-29 11:01:00 +02:00
53 changed files with 1776 additions and 992 deletions
@@ -1,41 +0,0 @@
---
-name: Docker Image CI
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    steps:
-    - uses: actions/checkout@v4
-      with:
-        fetch-depth: 0
-
-    - name: Build the Docker image
-      run: docker compose build --no-cache
-
-    - name: Verify the Docker image
-      # smoke test by checking if the migrations for app netbox_slm can be displayed
-      run: docker compose run netbox sh -c "/opt/netbox/venv/bin/python manage.py showmigrations netbox_slm"
-
-    - name: Run Django tests with coverage for netbox_slm
-      run: |
-        chmod go+w ci/reports
-        docker compose run netbox sh -c "\
-          /opt/netbox/venv/bin/coverage run --source='netbox_slm' manage.py test netbox_slm &&\
-          /opt/netbox/venv/bin/coverage report --fail-under=0 &&\
-          /opt/netbox/venv/bin/coverage xml -o /ci/reports/coverage.xml"
-        sed -i "s/<source>\/opt\/netbox\/netbox<\/source>/<source><\/source>/" ci/reports/coverage.xml
-      timeout-minutes: 6
-
-    - name: Sonar scan
-      if: env.SONAR_TOKEN != null
-      uses: SonarSource/sonarqube-scan-action@v4
-      env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        SONAR_TOKEN: ${{ secrets.SONAR_TOKEN }}
@@ -1,21 +0,0 @@
---
-name: Markdown lint
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  vale:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v4
-
-      - uses: errata-ai/vale-action@v2.1.1
-        with:
-          fail_on_error: true
-          filter_mode: nofilter
-          vale_flags: "--glob=*.md --config=ci/.vale.ini"
@@ -1,35 +0,0 @@
---
-name: Python
-
-on:
-  push:
-    branches:
-      - master
-  pull_request:
-    types: [opened, synchronize, reopened]
-
-jobs:
-  build:
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        include:
-          - python-version: 3.11
-          - python-version: 3.12
-          - python-version: 3.13
-    steps:
-    - uses: actions/checkout@v4
-
-    - name: Set up Python
-      uses: actions/setup-python@v5
-      with:
-        python-version: ${{ matrix.python-version }}
-
-    - name: Install ci tools
-      run: pip install .[ci]
-
-    - name: Run ruff lint
-      run: ruff check netbox_slm
-
-    - name: Run ruff format
-      run: ruff format --check netbox_slm
@@ -2,17 +2,59 @@

 ## [Unreleased]

+### Fixed
+
+* Make the required single platform destination explicit when creating an installation
+* Fix installation form submission on NetBox v4.6.5 when form mixins return no cleaned-data value
+* Prevent the notification log creation flag from shadowing Django's translation function during email delivery
+* Use NetBox's configured `EMAIL['FROM_EMAIL']` value as the SMTP sender instead of Django's localhost fallback
+* Register the expiration event with a concrete string so NetBox 4.6 can render the notification dropdown
+
+### Added
+
+* Optional tenant group and tenant assignments for software licenses
+* German translation for navigation, forms, tables, detail views, choices, and validation messages
+* Optional lifetime or recurring renewal interval for licenses
+* Optional license file, license key, and provider portal URL
+* Daily license expiration notifications for users who subscribe to a license
+* Default reminders one month and one week before expiration plus an optional custom interval
+* Optional SMTP email in addition to mandatory NetBox notifications
+
+### Changed
+
+* Support NetBox v4.6.5
+* Replace the Docker-based setup with Git/Pip installation documentation
+* Render tenant group and tenant in a dedicated license form section
+* Bump the package version so Git/Pip upgrades replace older installations
+* Make the license type field optional
+* Show the plugin under Licences in the main menu
+* Restrict SMTP notification activation to administrators and explicitly authorized users
+* Repeat NetBox and optional email reminders on every daily job run from the first due interval through expiration
+
+## [1.9.0](https://github.com/ICTU/netbox_slm/releases/tag/1.9.0) - 2026-06-25
+
+### Changed
+
+* Support NetBox v4.6.3 (#76)
+* Support Python 3.14 (#76)
+
+## [1.8.3](https://github.com/ICTU/netbox_slm/releases/tag/1.8.3) - 2025-12-18
+
+### Fixed
+
+* Filters with default order by ID (#75)
+
 ## [1.8.2](https://github.com/ICTU/netbox_slm/releases/tag/1.8.2) - 2025-06-02

 ### Fixed

-*  Permission check for adding software product installations (#70)
+* Permission check for adding software product installations (#70)

 ## [1.8.1](https://github.com/ICTU/netbox_slm/releases/tag/1.8.1) - 2025-04-11

 ### Fixed

-*  Filtering on foreign objects (#65)
+* Filtering on foreign objects (#65)

 ## [1.8.0](https://github.com/ICTU/netbox_slm/releases/tag/1.8.0) - 2025-02-25

@@ -1,133 +0,0 @@
-# Contributor Covenant Code of Conduct
-
-## Our Pledge
-
-We as members, contributors, and leaders pledge to make participation in our
-community a harassment-free experience for everyone, regardless of age, body
-size, visible or invisible disability, ethnicity, sex characteristics, gender
-identity and expression, level of experience, education, socio-economic status,
-nationality, personal appearance, race, caste, color, religion, or sexual
-identity and orientation.
-
-We pledge to act and interact in ways that contribute to an open, welcoming,
-diverse, inclusive, and healthy community.
-
-## Our Standards
-
-Examples of behavior that contributes to a positive environment for our
-community include:
-
-* Demonstrating empathy and kindness toward other people
-* Being respectful of differing opinions, viewpoints, and experiences
-* Giving and gracefully accepting constructive feedback
-* Accepting responsibility and apologizing to those affected by our mistakes,
-  and learning from the experience
-* Focusing on what is best not just for us as individuals, but for the overall
-  community
-
-Examples of unacceptable behavior include:
-
-* The use of sexualized language or imagery, and sexual attention or advances of
-  any kind
-* Trolling, insulting or derogatory comments, and personal or political attacks
-* Public or private harassment
-* Publishing others' private information, such as a physical or email address,
-  without their explicit permission
-* Other conduct which could reasonably be considered inappropriate in a
-  professional setting
-
-## Enforcement Responsibilities
-
-Community leaders are responsible for clarifying and enforcing our standards of
-acceptable behavior and will take appropriate and fair corrective action in
-response to any behavior that they deem inappropriate, threatening, offensive,
-or harmful.
-
-Community leaders have the right and responsibility to remove, edit, or reject
-comments, commits, code, wiki edits, issues, and other contributions that are
-not aligned to this Code of Conduct, and will communicate reasons for moderation
-decisions when appropriate.
-
-## Scope
-
-This Code of Conduct applies within all community spaces, and also applies when
-an individual is officially representing the community in public spaces.
-Examples of representing our community include using an official e-mail address,
-posting via an official social media account, or acting as an appointed
-representative at an online or offline event.
-
-## Enforcement
-
-Instances of abusive, harassing, or otherwise unacceptable behavior may be
-reported to the community leaders responsible for enforcement by
-[opening a new issue in this repository's issue tracker][open issue].
-All complaints will be reviewed and investigated promptly and fairly.
-
-All community leaders are obligated to respect the privacy and security of the
-reporter of any incident.
-
-## Enforcement Guidelines
-
-Community leaders will follow these Community Impact Guidelines in determining
-the consequences for any action they deem in violation of this Code of Conduct:
-
-### 1. Correction
-
-**Community Impact**: Use of inappropriate language or other behavior deemed
-unprofessional or unwelcome in the community.
-
-**Consequence**: A private, written warning from community leaders, providing
-clarity around the nature of the violation and an explanation of why the
-behavior was inappropriate. A public apology may be requested.
-
-### 2. Warning
-
-**Community Impact**: A violation through a single incident or series of
-actions.
-
-**Consequence**: A warning with consequences for continued behavior. No
-interaction with the people involved, including unsolicited interaction with
-those enforcing the Code of Conduct, for a specified period of time. This
-includes avoiding interactions in community spaces as well as external channels
-like social media. Violating these terms may lead to a temporary or permanent
-ban.
-
-### 3. Temporary Ban
-
-**Community Impact**: A serious violation of community standards, including
-sustained inappropriate behavior.
-
-**Consequence**: A temporary ban from any sort of interaction or public
-communication with the community for a specified period of time. No public or
-private interaction with the people involved, including unsolicited interaction
-with those enforcing the Code of Conduct, is allowed during this period.
-Violating these terms may lead to a permanent ban.
-
-### 4. Permanent Ban
-
-**Community Impact**: Demonstrating a pattern of violation of community
-standards, including sustained inappropriate behavior, harassment of an
-individual, or aggression toward or disparagement of classes of individuals.
-
-**Consequence**: A permanent ban from any sort of public interaction within the
-community.
-
-## Attribution
-
-This Code of Conduct is adapted from the [Contributor Covenant][homepage],
-version 2.1, available at
-[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html][v2.1].
-
-Community Impact Guidelines were inspired by
-[Mozilla's code of conduct enforcement ladder][Mozilla CoC].
-
-For answers to common questions about this code of conduct, see the FAQ at
-[https://www.contributor-covenant.org/faq][FAQ]. Translations are available at
-[https://www.contributor-covenant.org/translations][translations].
-
-[homepage]: https://www.contributor-covenant.org
-[v2.1]: https://www.contributor-covenant.org/version/2/1/code_of_conduct.html
-[Mozilla CoC]: https://github.com/mozilla/diversity
-[FAQ]: https://www.contributor-covenant.org/faq
-[translations]: https://www.contributor-covenant.org/translations
-[open issue]: https://github.com/ICTU/netbox_slm/issues/new
@@ -1,34 +0,0 @@
-# NetBox SLM contributing guidelines
-
-## What do I need to know to help?
-
-If you are looking to help to with a code contribution our project uses, you can find inspiration in the [issue list](https://github.com/ICTU/netbox_slm/issues/).
-Additionally, review the [README](./README.md) document and [NetBox Plugin Development](https://docs.netbox.dev/en/stable/plugins/development/) docs.
-
-## How do I make a contribution?
-
-Never made an open source contribution before? Wondering how contributions work in the in our project? Here's a quick rundown!
-
-1. Find an issue that you are interested in addressing or a feature that you would like to add.
-2. Fork the repository associated with the issue to your local GitHub organization. This means that you will have a copy of the repository under **your-GitHub-username/repository-name**.
-3. Clone the repository to your local machine using `git clone https://github.com/github-username/repository-name.git`.
-4. Create a new branch for your fix using `git checkout -b branch-name-here`.
-5. Make the appropriate changes for the issue you are trying to address or the feature that you want to add.
-6. Use git `add insert-paths-of-changed-files-here` to add the file contents of the changed files to the "snapshot" git uses to manage the state of the project, also known as the index.
-7. Use `git commit -m "Insert a short message of the changes made here"` to store the contents of the index with a descriptive message.
-8. Push the changes to the remote repository using `git push origin branch-name-here`.
-9. Submit a pull request to the upstream repository.
-10. Title the pull request with a short description of the changes made and the issue or bug number associated with your change. For example, you can title an issue like so "Added more log outputting to resolve #4352".
-11. In the description of the pull request, explain the changes that you made, any issues you think exist with the pull request you made, and any questions you have for the maintainer. It's OK if your pull request is not perfect (no pull request is), the reviewer will be able to help you fix any problems and improve it!
-12. Wait for the pull request to be reviewed by a maintainer.
-13. Make changes to the pull request if the reviewing maintainer recommends them.
-14. Celebrate your success after your pull request is merged!
-
-## Where can I go for help?
-
-If you need help, you can ask questions by [opening a new issue in this repository's issue tracker](https://github.com/ICTU/netbox_slm/issues/new).
-
-## What does the Code of Conduct mean for me?
-
-Our [Code of Conduct](./CODE_OF_CONDUCT.md) means that you are responsible for treating everyone on the project with respect and courtesy regardless of their identity.
-If you are the victim of any inappropriate behavior or comments as described in our Code of Conduct, we are here for you and will do the best to ensure that the abuser is reprimanded appropriately, per our code.
@@ -1,151 +0,0 @@
-# Maintenance related tasks
-
-
-## Version upgrade workflow
-
-1. Update version spec in `netbox_slm/__init__.py` and `sonar-project.properties`
-1. Check for any runtime errors and warnings in the `netbox-*` container logs
-1. Create new version tag on GitHub, following semantic versioning as: `MAJOR.MINOR.PATCH`
-1. Update the `CHANGELOG.md` with new version information and move `[Unreleased]` items to new version section
-1. Build the package: `python -m build`
-1. Upload the distributions to PyPI: `twine upload --skip-existing dist/*`
-
-
-## Developer Guide (local installation)
-
-*Follow the steps below on your local system to run NetBox and the
-`netbox_slm` plugin in developer mode*
-
-### Setup
-
-The goal below is to run all NetBox components in Docker and run a local
-NetBox Django copy with auto-reload to develop the plugin pointing to
-the PostgreSQL and Redis container instances, basically ignoring the
-NetBox docker runtime server.
-
-### Steps
-
-from your projects directory clone the NetBox repository
-
-```shell
-$ git clone https://github.com/netbox-community/netbox
-$ cd netbox
-```
-
-install the virtual environment
-
-```shell
-$ pipenv shell
-$ pipenv install
-```
-
-create and edit `netbox/configuration.py` (based on the template file) add these lines at the end of the file;
-
-```python
-DEBUG = True
-SECRET_KEY = 'dummy'
-PLUGINS = [
-'netbox_slm',
-]
-```
-
-The NetBox installation above will be used to run Django management
-commands like `runserver`, `makemigrations` and `migrate`, which will be
-explained in the next steps below;
-
-from your projects directory clone the `netbox_slm` repository
-
-```shell
-$ git clone https://github.com/ICTU/netbox_slm
-$ cd netbox_slm
-$ ./start-netbox.sh
-```
-
-This will start NetBox locally (requires Docker) and forward the Redis
-and PostgreSQL ports to the localhost (make sure there’s no processes
-using these ports or change the Dockerfile(s) accordingly)
-
-Note, you can also start and stop NetBox by hand:
-
-```shell
-$ cd netbox-docker
-$ docker compose up -d
-```
-
-or stop the stack with
-
-```shell
-$ docker compose down
-```
-
-#### to start fresh:
-
-```shell
-$ docker compose down
-$ docker volume rm netbox-docker_netbox-postgres-data  # et cetera
-$ docker compose up -d --force-recreate
-```
-
-this will require you to re-run the migrate commando's for `netbox_slm`, see further down below
-
-Go back to the NetBox `configuration.py` file and update the PostgreSQL and
-Redis connection strings (username, password) to the ones the NetBox
-Docker backend is using, for example (using default user and passwords
-from the NetBox Docker example):
-
-```python
-# PostgreSQL database configuration. See the Django documentation for a complete list of available parameters:
-#   https://docs.djangoproject.com/en/stable/ref/settings/#databases
-DATABASE = {
-   'NAME': 'netbox',               # Database name
-   'USER': 'netbox',               # PostgreSQL username
-   'PASSWORD': 'J5brHrAXFLQSif0K', # PostgreSQL password
-   'HOST': 'localhost',            # Database server
-   'PORT': '',                     # Database port (leave blank for default)
-   'CONN_MAX_AGE': 300,            # Max database connection age
-}
-
-# Redis database settings. Redis is used for caching and for queuing background tasks such as webhook events. A separate
-# configuration exists for each. Full connection details are required in both sections, and it is strongly recommended
-# to use two separate database IDs.
-REDIS = {
-   'tasks': {
-       'HOST': 'localhost',
-       'PORT': 6379,
-       # Comment out `HOST` and `PORT` lines and uncomment the following if using Redis Sentinel
-       # 'SENTINELS': [('mysentinel.redis.example.com', 6379)],
-       # 'SENTINEL_SERVICE': 'netbox',
-       'PASSWORD': 'H733Kdjndks81',
-       'DATABASE': 0,
-       'SSL': False,
-       # Set this to True to skip TLS certificate verification
-       # This can expose the connection to attacks, be careful
-       # 'INSECURE_SKIP_TLS_VERIFY': False,
-   },
-   'caching': {
-       'HOST': 'localhost',
-       'PORT': 6379,
-       # Comment out `HOST` and `PORT` lines and uncomment the following if using Redis Sentinel
-       # 'SENTINELS': [('mysentinel.redis.example.com', 6379)],
-       # 'SENTINEL_SERVICE': 'netbox',
-       'PASSWORD': 'H733Kdjndks81',
-       'DATABASE': 1,
-       'SSL': False,
-       # Set this to True to skip TLS certificate verification
-       # This can expose the connection to attacks, be careful
-       # 'INSECURE_SKIP_TLS_VERIFY': False,
-   }
-}
-```
-
-Now you can run commands from the NetBox repository like this;
-
-```shell
-$ cd netbox/netbox
-$ export PYTHONPATH=../../netbox_slm/netbox_slm/  # or with the pipenv activated run `python3 setup.py develop` from the netbox_slm directory
-$ python3 manage.py migrate netbox_slm
-$ python3 manage.py runserver 8001
-```
-
-Visit http://127.0.0.1:8001 in the browser to see the auto reloading version of the NetBox UI.
-Port 8000 is taken by the Docker ran variant.
@@ -1,62 +1,160 @@
 # NetBox SLM

-<p align="center"><i>NetBox SLM is a plugin for lifecycle management of software components, including versions and installations.</i></p>
+NetBox SLM erweitert NetBox um die Verwaltung von Softwareprodukten, Versionen, Installationen und Lizenzen.
+Lizenzen können optional einer NetBox-Mandantengruppe und einem Mandanten zugeordnet werden.

-<div align="center">
-<a href="https://pypi.org/project/netbox_slm/"><img src="https://img.shields.io/pypi/v/netbox_slm" alt="PyPi"/></a>
-<a href="https://github.com/ICTU/netbox_slm/stargazers"><img src="https://img.shields.io/github/stars/ICTU/netbox_slm" alt="Stars Badge"/></a>
-<a href="https://github.com/ICTU/netbox_slm/network/members"><img src="https://img.shields.io/github/forks/ICTU/netbox_slm" alt="Forks Badge"/></a>
-<a href="https://github.com/ICTU/netbox_slm/pulls"><img src="https://img.shields.io/github/issues-pr/ICTU/netbox_slm" alt="Pull Requests Badge"/></a>
-<a href="https://github.com/ICTU/netbox_slm/issues"><img src="https://img.shields.io/github/issues/ICTU/netbox_slm" alt="Issues Badge"/></a>
-<a href="https://github.com/ICTU/netbox_slm/graphs/contributors"><img alt="GitHub contributors" src="https://img.shields.io/github/contributors/ICTU/netbox_slm?color=2b9348"></a>
-<a href="https://github.com/ICTU/netbox_slm/blob/master/LICENSE"><img src="https://img.shields.io/github/license/ICTU/netbox_slm?color=2b9348" alt="License Badge"/></a>
-</div>
+Diese Variante ist für **NetBox 4.6.5** vorgesehen.

+Die Oberfläche ist auf Englisch und Deutsch verfügbar. Die Sprache richtet sich nach der in NetBox für den
+Benutzer ausgewählten Sprache.

-## Installation Guide
+## Funktionen

-When using the Docker version of NetBox, first follow the `netbox-docker` [quickstart](https://github.com/netbox-community/netbox-docker#quickstart) instructions to clone the `netbox-docker` repository and set up the ``docker-compose.override.yml``.
+- Softwareprodukte und Hersteller verwalten
+- Versionen, Release-Typen und Supportzeiträume erfassen
+- Installationen Geräten, virtuellen Maschinen oder Clustern zuordnen
+- Softwarelizenzen einschließlich Laufzeit, Umfang und Ablageort verwalten
+- Lifetime-Lizenzen oder Erneuerungsintervalle in Tagen, Monaten oder Jahren erfassen
+- Lizenzdateien, Lizenzschlüssel und Links zum Anbieterportal hinterlegen
+- Ablaufwarnungen standardmäßig einen Monat und eine Woche vor Lizenzende
+- Zusätzliche eigene Vorwarnzeit in Tagen, Wochen oder Monaten
+- NetBox-Benachrichtigungen und optionaler E-Mail-Versand über die NetBox-SMTP-Konfiguration
+- Lizenzen Mandantengruppen und Mandanten zuordnen
+- Bedienung über die NetBox-Oberfläche und REST-API
+- Filter, Bulk-Import und Bulk-Bearbeitung

-Note that this plugin is only tested against a single NetBox version at this time, see [Dockerfile-CI](https://github.com/ICTU/netbox_slm/blob/master/ci/Dockerfile-CI).
+> **Hinweis:** Lizenzschlüssel werden in der NetBox-Datenbank und Lizenzdateien im konfigurierten NetBox-
+> Medienverzeichnis gespeichert. Der Zugriff auf Datenbank, REST-API und Medienverzeichnis sollte entsprechend
+> geschützt und gesichert werden.

-Next, follow these instructions (based on the NetBox docker variant [instructions](https://github.com/netbox-community/netbox-docker/wiki/Configuration#custom-configuration-files)) to install the NetBox SLM plugin:
+## Installation

-1. Add ``netbox_slm`` to the ``PLUGINS`` list in
-   ``configuration/plugins.py``.
-2. Create a ``plugin_requirements.txt`` with ``netbox-slm`` as
-   contents.
-3. Create a ``Dockerfile-SLM`` with contents:
+NetBox installiert lokale Erweiterungen aus `/opt/netbox/local_requirements.txt`. Die Git-URL muss dort dauerhaft
+eingetragen werden, damit das Plugin bei einem späteren NetBox-Upgrade erneut installiert wird.

-```dockerfile
-FROM netboxcommunity/netbox:vX.Y.Z
+### 1. Git-Repository als lokale Anforderung eintragen

-COPY ../pyproject.toml /tmp/
-RUN uv pip install -r /tmp/pyproject.toml
+```bash
+echo "git+https://git.mrblake.cc/MrBlake/NetBox-SLM.git" >> /opt/netbox/local_requirements.txt
 ```

-4. Create a ``docker-compose.override.yml`` with contents:
+Vorher kann geprüft werden, ob der Eintrag bereits vorhanden ist:

-```yaml
-version: "3.7"
-services:
-  netbox:
-    ports:
-      - "8000:8080"
-    build:
-      context: .
-      dockerfile: Dockerfile-SLM
-    image: netbox:slm
-  netbox-worker:
-    image: netbox:slm
-  netbox-housekeeping:
-    image: netbox:slm
+```bash
+grep -qxF "git+https://git.mrblake.cc/MrBlake/NetBox-SLM.git" /opt/netbox/local_requirements.txt || \
+  echo "git+https://git.mrblake.cc/MrBlake/NetBox-SLM.git" >> /opt/netbox/local_requirements.txt
 ```

-Now, build the image: ``docker compose build --no-cache``
+### 2. Plugin mit Pip installieren

-And finally, run NetBox with the SLM plugin: ``docker compose up``
+Die Installation muss im Python-Virtual-Environment von NetBox erfolgen:

+```bash
+/opt/netbox/venv/bin/pip install --upgrade --force-reinstall \
+  "git+https://git.mrblake.cc/MrBlake/NetBox-SLM.git"
+```

-## Get in touch
+Alternativ können alle lokalen Anforderungen installiert werden:

-Point of contact for this repository is [Mart Visser](https://github.com/MartVisser), who can be reached by [opening a new issue in this repository's issue tracker](https://github.com/ICTU/netbox_slm/issues/new).
+```bash
+/opt/netbox/venv/bin/pip install -r /opt/netbox/local_requirements.txt
+```
+
+Die installierte Version kann anschließend geprüft werden:
+
+```bash
+/opt/netbox/venv/bin/pip show netbox-slm
+```
+
+Für diese Variante muss dort mindestens Version `1.12.0` stehen.
+
+## Ablaufbenachrichtigungen
+
+Für Lizenzen mit Ablaufdatum sind Benachrichtigungen standardmäßig aktiviert. Die Standardtermine liegen einen
+Monat und eine Woche vor dem Ablaufdatum. Pro Lizenz kann zusätzlich eine eigene Vorwarnzeit festgelegt oder die
+Standardtermine deaktiviert werden.
+
+Empfänger entscheiden selbst, ob sie informiert werden: Vertrieb, zuständiger Techniker oder andere Benutzer öffnen
+die Lizenz und wählen die NetBox-Aktion **Abonnieren**. Mit **Abonnement beenden** können sie die Meldungen wieder
+abschalten. Ohne Abonnenten wird keine Nachricht versendet.
+
+Die NetBox-Nachricht wird immer erzeugt. Wird an der Lizenz zusätzlich **E-Mail-Benachrichtigungen** aktiviert, sendet
+das Plugin auch eine E-Mail an die im Benutzerkonto hinterlegte Adresse. Dafür muss der SMTP-Versand in NetBox
+konfiguriert sein.
+
+Die Aktivierung des E-Mail-Versands darf nur durch Administratoren oder Benutzer mit der Berechtigung
+`netbox_slm.manage_softwarelicense_email_notifications` geändert werden. Die eigentlichen SMTP-Zugangsdaten werden
+ausschließlich in der NetBox-Serverkonfiguration gepflegt und sind im Plugin nicht einsehbar.
+
+Die Prüfung läuft einmal täglich als NetBox-Systemjob. Sobald der erste konfigurierte Erinnerungstermin erreicht ist,
+werden die Abonnenten bei jedem Joblauf erneut informiert: immer über NetBox und bei aktivierter E-Mail-Option
+zusätzlich per SMTP. Dies wird bis einschließlich des Ablaufdatums wiederholt. Der NetBox-RQ-Worker muss dafür mit
+Scheduler-Unterstützung laufen; dies ist bei der regulären NetBox-Installation mit `rqworker` standardmäßig der Fall.
+
+### 3. Plugin in NetBox aktivieren
+
+In `/opt/netbox/netbox/netbox/configuration.py` ergänzen:
+
+```python
+PLUGINS = [
+    "netbox_slm",
+]
+```
+
+Falls bereits andere Plugins eingetragen sind, wird `"netbox_slm"` lediglich zur vorhandenen Liste hinzugefügt.
+Eine zusätzliche `PLUGINS_CONFIG`-Konfiguration ist für den Standardbetrieb nicht erforderlich.
+
+### 4. Datenbank migrieren und statische Dateien aktualisieren
+
+```bash
+cd /opt/netbox/netbox
+/opt/netbox/venv/bin/python manage.py migrate
+/opt/netbox/venv/bin/python manage.py collectstatic --no-input
+```
+
+### 5. NetBox-Dienste neu starten
+
+Bei einer üblichen systemd-Installation:
+
+```bash
+sudo systemctl restart netbox netbox-rq
+```
+
+Je nach Installation können die Namen der Dienste abweichen.
+
+## Aktualisierung
+
+```bash
+/opt/netbox/venv/bin/pip install --upgrade --force-reinstall \
+  "git+https://git.mrblake.cc/MrBlake/NetBox-SLM.git"
+cd /opt/netbox/netbox
+/opt/netbox/venv/bin/python manage.py migrate
+/opt/netbox/venv/bin/python manage.py collectstatic --no-input
+sudo systemctl restart netbox netbox-rq
+```
+
+Der Eintrag in `/opt/netbox/local_requirements.txt` bleibt dabei bestehen.
+
+## Deinstallation
+
+1. `"netbox_slm"` aus der `PLUGINS`-Liste entfernen.
+2. Die Git-Zeile aus `/opt/netbox/local_requirements.txt` entfernen.
+3. Das Python-Paket deinstallieren:
+
+```bash
+/opt/netbox/venv/bin/pip uninstall netbox-slm
+```
+
+Die Plugin-Tabellen werden dabei nicht automatisch aus der Datenbank gelöscht.
+
+## Ursprung und Lizenz
+
+Dieses Repository basiert auf dem ursprünglichen Projekt
+[ICTU/netbox_slm](https://github.com/ICTU/netbox_slm). **ICTU** ist der ursprüngliche Autor und Herausgeber.
+[Mart Visser](https://github.com/MartVisser) wird im Originalprojekt als Ansprechpartner genannt.
+
+Die Anpassungen in diesem Fork werden unter
+[git.mrblake.cc/MrBlake/NetBox-SLM](https://git.mrblake.cc/MrBlake/NetBox-SLM) gepflegt.
+
+Das Projekt steht unter der [Apache License 2.0](LICENSE). Die Hinweise auf die ursprünglichen Urheber bleiben
+erhalten.
@@ -1,16 +0,0 @@
-# NetBox SLM Security Policy
-
-## Current status
-
-NetBox SLM is a plugin for [NetBox](https://github.com/netbox-community/netbox/) with mostly default configuration.
-In order to stay up to date, monitor NetBox security findings and update accordingly.
-
-## Supported Versions
-
-Only the latest version of NetBox SLM is currently being supported with security updates.
-The intention is to keep the plugin compatible with the most recent NetBox version(s), there is no incentive to patch older tags.
-
-## Reporting a Vulnerability
-
-You can privately [report a vulnerability issue in this repository's issue tracker](https://github.com/ICTU/netbox_slm/security/advisories/new).
-The aim is to get back to you within 24 hours, with a confirmation of the issue and a brief action plan or a request for more information.
@@ -1,9 +0,0 @@
-StylesPath = styles
-
-MinAlertLevel = suggestion
-Vocab = Base
-
-Packages = proselint
-
-[*.md]
-BasedOnStyles = Vale, proselint
@@ -1,18 +0,0 @@
-ARG PYTHON_VERSION=3.12
-FROM python:${PYTHON_VERSION}-alpine AS compile-image
-# Python version build arg is not actually supported by NetBox container image, only used for maintenance convenience
-
-WORKDIR /build
-RUN python3 -m venv /opt/netbox/venv &&\
-    source /opt/netbox/venv/bin/activate
-
-COPY ../ /build
-
-RUN pip install -U .[build] &&\
-    python -m build &&\
-    pip install --no-index /build
-
-FROM netboxcommunity/netbox:v4.2.3
-ARG PYTHON_VERSION=3.12
-
-COPY --from=compile-image /opt/netbox/venv/lib/python${PYTHON_VERSION}/site-packages/netbox_slm /opt/netbox/venv/lib/python${PYTHON_VERSION}/site-packages/netbox_slm
@@ -1,5 +0,0 @@
-FROM netboxcommunity/netbox:v4.2.3
-ARG PYTHON_VERSION=3.12
-
-COPY ../pyproject.toml /tmp/
-RUN uv pip install -r /tmp/pyproject.toml --extra ci
@@ -1,40 +0,0 @@
-"""
-Minimal NetBox config for NetBox SLM plugin testing, docs: https://netbox.readthedocs.io/en/stable/configuration/
-Based on https://github.com/netbox-community/netbox/blob/v4.2.3/netbox/netbox/configuration_testing.py
-"""
-from os import environ
-
-ALLOWED_HOSTS = ['*']
-
-DATABASE = {
-    'NAME': environ.get('DB_NAME', 'netbox'),
-    'USER': environ.get('DB_USER', ''),
-    'PASSWORD': environ.get('DB_PASSWORD', ''),
-    'HOST': environ.get('DB_HOST', 'localhost'),
-    'PORT': environ.get('DB_PORT', ''),
-    'CONN_MAX_AGE': int(environ.get('DB_CONN_MAX_AGE', '300')),
-}
-
-DEBUG = environ.get('DEBUG', 'False').lower() == 'true'
-DEVELOPER = environ.get('DEVELOPER', 'False').lower() == 'true'
-
-PLUGINS = ["netbox_slm"]
-
-REDIS = {
-    'tasks': {
-        'HOST': environ.get('REDIS_HOST', 'localhost'),
-        'PORT': int(environ.get('REDIS_PORT', 6379)),
-        'PASSWORD': environ.get('REDIS_PASSWORD', ''),
-        'DATABASE': int(environ.get('REDIS_DATABASE', 0)),
-        'SSL': environ.get('REDIS_SSL', 'False').lower() == 'true',
-    },
-    'caching': {
-        'HOST': environ.get('REDIS_CACHE_HOST', environ.get('REDIS_HOST', 'localhost')),
-        'PORT': int(environ.get('REDIS_CACHE_PORT', environ.get('REDIS_PORT', 6379))),
-        'PASSWORD': environ.get('REDIS_CACHE_PASSWORD', environ.get('REDIS_PASSWORD', '')),
-        'DATABASE': int(environ.get('REDIS_CACHE_DATABASE', 1)),
-        'SSL': environ.get('REDIS_CACHE_SSL', environ.get('REDIS_SSL', 'False')).lower() == 'true',
-    },
-}
-
-SECRET_KEY = 'dummydummydummydummydummydummydummydummydummydummy'
@@ -1,38 +0,0 @@
---
-services:
-  netbox:
-    ports:
-      - "8001:8080"
-    build:
-      context: ..
-      dockerfile: ci/Dockerfile-CI
-    image: netbox:slm
-    environment:
-      - COVERAGE_FILE=/tmp/.coverage
-    healthcheck:
-      disable: true
-    volumes:
-      - ./config:/etc/netbox/config:ro
-      - ./reports:/ci/reports:rw
-      - ../netbox_slm:/opt/netbox/netbox/netbox_slm:ro
-  netbox-worker:
-    image: netbox:slm
-    depends_on:
-      - netbox
-    healthcheck:
-      disable: true
-    volumes:
-      - ./config:/etc/netbox/config:ro
-      - ../netbox_slm:/opt/netbox/netbox/netbox_slm:ro
-  netbox-housekeeping:
-    image: netbox:slm
-    depends_on:
-      - netbox
-    healthcheck:
-      disable: true
-  postgres:
-    ports:
-      - "5432:5432"
-  redis:
-    ports:
-      - "6379:6379"
@@ -1,101 +0,0 @@
---
-# based on https://github.com/netbox-community/netbox-docker/blob/3.2.0/docker-compose.yml
-services:
-  netbox: &netbox
-    image: netboxcommunity/netbox:${VERSION-v4.2.3}
-    depends_on:
-      - postgres
-      - redis
-      - redis-cache
-    env_file: env/netbox.env
-    user: "unit:root"
-    healthcheck:
-      test: curl -f http://localhost:8080/login/ || exit 1
-      start_period: 90s
-      timeout: 3s
-      interval: 15s
-    volumes:
-      - ./config:/etc/netbox/config:ro
-      - netbox-media-files:/opt/netbox/netbox/media:rw
-      - netbox-reports-files:/opt/netbox/netbox/reports:rw
-      - netbox-scripts-files:/opt/netbox/netbox/scripts:rw
-  netbox-worker:
-    <<: *netbox
-    depends_on:
-      netbox:
-        condition: service_healthy
-    command:
-      - /opt/netbox/venv/bin/python
-      - /opt/netbox/netbox/manage.py
-      - rqworker
-    healthcheck:
-      test: ps -aux | grep -v grep | grep -q rqworker || exit 1
-      start_period: 20s
-      timeout: 3s
-      interval: 15s
-  netbox-housekeeping:
-    <<: *netbox
-    depends_on:
-      netbox:
-        condition: service_healthy
-    command:
-      - /opt/netbox/housekeeping.sh
-    healthcheck:
-      test: ps -aux | grep -v grep | grep -q housekeeping || exit 1
-      start_period: 20s
-      timeout: 3s
-      interval: 15s
-
-  # postgres
-  postgres:
-    image: postgres:17-alpine
-    healthcheck:
-      test: pg_isready -q -t 2 -d $$POSTGRES_DB -U $$POSTGRES_USER
-      start_period: 20s
-      timeout: 30s
-      interval: 10s
-      retries: 5
-    env_file: env/postgres.env
-    volumes:
-      - netbox-postgres-data:/var/lib/postgresql/data
-
-  # redis
-  redis:
-    image: valkey/valkey:8.0-alpine
-    command:
-      - sh
-      - -c
-      - valkey-server --appendonly yes --requirepass $$REDIS_PASSWORD
-    healthcheck: &redis-healthcheck
-      test: '[ $$(valkey-cli --pass "$${REDIS_PASSWORD}" ping) = ''PONG'' ]'
-      start_period: 5s
-      timeout: 3s
-      interval: 1s
-      retries: 5
-    env_file: env/redis.env
-    volumes:
-      - netbox-redis-data:/data
-  redis-cache:
-    image: valkey/valkey:8.0-alpine
-    command:
-      - sh
-      - -c
-      - valkey-server --requirepass $$REDIS_PASSWORD
-    healthcheck: *redis-healthcheck
-    env_file: env/redis-cache.env
-    volumes:
-      - netbox-redis-cache-data:/data
-
-volumes:
-  netbox-media-files:
-    driver: local
-  netbox-postgres-data:
-    driver: local
-  netbox-redis-cache-data:
-    driver: local
-  netbox-redis-data:
-    driver: local
-  netbox-reports-files:
-    driver: local
-  netbox-scripts-files:
-    driver: local
@@ -1,42 +0,0 @@
-CORS_ORIGIN_ALLOW_ALL=True
-DB_HOST=postgres
-DB_NAME=netbox
-DB_PASSWORD=J5brHrAXFLQSif0K
-DB_USER=netbox
-EMAIL_FROM=netbox@bar.com
-EMAIL_PASSWORD=
-EMAIL_PORT=25
-EMAIL_SERVER=localhost
-EMAIL_SSL_CERTFILE=
-EMAIL_SSL_KEYFILE=
-EMAIL_TIMEOUT=5
-EMAIL_USERNAME=netbox
-# EMAIL_USE_SSL and EMAIL_USE_TLS are mutually exclusive, i.e. they can't both be `true`!
-EMAIL_USE_SSL=false
-EMAIL_USE_TLS=false
-GRAPHQL_ENABLED=true
-HOUSEKEEPING_INTERVAL=86400
-MAX_PAGE_SIZE=1000
-MEDIA_ROOT=/opt/netbox/netbox/media
-METRICS_ENABLED=false
-NAPALM_PASSWORD=
-NAPALM_TIMEOUT=10
-NAPALM_USERNAME=
-REDIS_CACHE_DATABASE=1
-REDIS_CACHE_HOST=redis-cache
-REDIS_CACHE_INSECURE_SKIP_TLS_VERIFY=false
-REDIS_CACHE_PASSWORD=t4Ph722qJ5QHeQ1qfu36
-REDIS_CACHE_SSL=false
-REDIS_DATABASE=0
-REDIS_HOST=redis
-REDIS_INSECURE_SKIP_TLS_VERIFY=false
-REDIS_PASSWORD=H733Kdjndks81
-REDIS_SSL=false
-RELEASE_CHECK_URL=https://api.github.com/repos/netbox-community/netbox/releases
-SECRET_KEY=r8OwDznj!!dci#P9ghmRfdu1Ysxm0AiPeDCQhKE+N_rClfWNj
-SKIP_SUPERUSER=false
-SUPERUSER_API_TOKEN=0123456789abcdef0123456789abcdef01234567
-SUPERUSER_EMAIL=admin@example.com
-SUPERUSER_NAME=admin
-SUPERUSER_PASSWORD=admin
-WEBHOOKS_ENABLED=true
@@ -1,3 +0,0 @@
-POSTGRES_DB=netbox
-POSTGRES_PASSWORD=J5brHrAXFLQSif0K
-POSTGRES_USER=netbox
@@ -1 +0,0 @@
-REDIS_PASSWORD=t4Ph722qJ5QHeQ1qfu36
@@ -1 +0,0 @@
-REDIS_PASSWORD=H733Kdjndks81
@@ -1,68 +0,0 @@
-Anchore
-APIs
-Caddy
-Checkmarx
-Cobertura
-Dependabot
-Docker-composition
-Dockerfile
-DTDs
-ESLint
-Gravatar
-Jira
-JMeter
-JUnit
-NCover
-Nginx
-OJAudit
-OpenShift
-PDFs
-Pydantic
-Robocop
-Snyk
-Trello
-Trivy
-UUIDs
-Wekan
-[Hh]ostname
-[Uu]nmerged
-asyncio
-autoformatting
-breakpoint
-clearable
-cloc
-discoverability
-donut
-errored
-favicon
-fixme
-hostnames?
-hotspots?
-lookback
-misconfigured
-mypy
-namespace
-npm
-parameterizable
-phpldapadmin
-[Pp]erformancetest
-severities
-sparkline
-subfolders
-submenus
-suppressions
-todo
-tooltips?
-tracebacks?
-unencrypted
-unicode
-unmerged
-upvotes
-url
-xml
-NetBox
-NetBox SLM
-Mart
-Visser
-Suchow
-Redistributions
@@ -1,3 +0,0 @@
-docker composition
-Docker composition
-docker-composition
@@ -15,15 +15,16 @@ limitations under the License.
 """

 from netbox.plugins import PluginConfig
+from django.utils.translation import gettext, gettext_lazy as _

-__version__ = "1.8.2"
+__version__ = "1.13.0"


 class SLMConfig(PluginConfig):
    name = "netbox_slm"
-    verbose_name = "Software Lifecycle Management"
+    verbose_name = _("Licences")
    version = __version__
-    description = "Software Lifecycle Management Netbox Plugin."
+    description = _("Licence Management NetBox Plugin.")
    author = "ICTU"
    author_email = "open-source-projects@ictu.nl"
    base_url = "slm"
@@ -35,5 +36,15 @@ class SLMConfig(PluginConfig):
        "link_virtualmachine_installations": "right",
    }

+    def ready(self):
+        super().ready()
+
+        from netbox.events import EVENT_TYPE_KIND_WARNING, EventType
+        from netbox_slm.events import LICENSE_EXPIRING
+
+        EventType(LICENSE_EXPIRING, gettext("License expiring"), kind=EVENT_TYPE_KIND_WARNING).register()
+
+        from netbox_slm import jobs  # noqa: F401
+

 config = SLMConfig
@@ -1,4 +1,6 @@
+from rest_framework import serializers
 from rest_framework.serializers import SerializerMethodField, HyperlinkedIdentityField
+from django.utils.translation import gettext_lazy as _

 from netbox.api.serializers import NetBoxModelSerializer
 from netbox_slm.models import SoftwareProduct, SoftwareProductVersion, SoftwareProductInstallation, SoftwareLicense
@@ -22,11 +24,24 @@ class SoftwareLicenseSerializer(NetBoxModelSerializer):
            "stored_location_url",
            "start_date",
            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
            "support",
            "license_amount",
+            "license_file",
+            "license_key",
+            "provider_portal_url",
+            "expiration_notifications_enabled",
+            "default_notification_intervals",
+            "custom_notification_interval",
+            "custom_notification_interval_unit",
+            "email_notifications",
            "software_product",
            "version",
            "installation",
+            "tenant_group",
+            "tenant",
            "tags",
            "comments",
            "custom_field_data",
@@ -38,6 +53,54 @@ class SoftwareLicenseSerializer(NetBoxModelSerializer):
    def get_display(self, obj):
        return f"{obj}"

+    def validate(self, attrs):
+        request = self.context.get("request")
+        if (
+            "email_notifications" in attrs
+            and request is not None
+            and not request.user.has_perm("netbox_slm.manage_softwarelicense_email_notifications")
+        ):
+            raise serializers.ValidationError(
+                {"email_notifications": _("You do not have permission to change email notifications.")}
+            )
+
+        tenant_group = attrs.get("tenant_group", getattr(self.instance, "tenant_group", None))
+        tenant = attrs.get("tenant", getattr(self.instance, "tenant", None))
+        if tenant_group and tenant and tenant.group_id != tenant_group.pk:
+            raise serializers.ValidationError(
+                {"tenant": _("The selected tenant does not belong to the selected tenant group.")}
+            )
+        lifetime = attrs.get("lifetime", getattr(self.instance, "lifetime", False))
+        renewal_interval = attrs.get("renewal_interval", getattr(self.instance, "renewal_interval", None))
+        renewal_interval_unit = attrs.get(
+            "renewal_interval_unit", getattr(self.instance, "renewal_interval_unit", "")
+        )
+        expiration_date = attrs.get("expiration_date", getattr(self.instance, "expiration_date", None))
+        if bool(renewal_interval) != bool(renewal_interval_unit):
+            raise serializers.ValidationError(
+                {"renewal_interval": _("Renewal interval and unit must be specified together.")}
+            )
+        if lifetime and (renewal_interval or renewal_interval_unit or expiration_date):
+            raise serializers.ValidationError(
+                {"lifetime": _("A lifetime license cannot have a renewal interval or expiration date.")}
+            )
+        custom_interval = attrs.get(
+            "custom_notification_interval", getattr(self.instance, "custom_notification_interval", None)
+        )
+        custom_interval_unit = attrs.get(
+            "custom_notification_interval_unit",
+            getattr(self.instance, "custom_notification_interval_unit", ""),
+        )
+        if bool(custom_interval) != bool(custom_interval_unit):
+            raise serializers.ValidationError(
+                {
+                    "custom_notification_interval": _(
+                        "Custom notification interval and unit must be specified together."
+                    )
+                }
+            )
+        return attrs
+

 class SoftwareProductSerializer(NetBoxModelSerializer):
    display = SerializerMethodField()
@@ -27,24 +27,24 @@ class NetboxSLMRootView(APIRootView):


 class SoftwareProductViewSet(NetBoxModelViewSet):
-    queryset = SoftwareProduct.objects.all()
+    queryset = SoftwareProduct.objects.all().order_by("id")
    serializer_class = SoftwareProductSerializer
    filterset_class = SoftwareProductFilterSet


 class SoftwareProductVersionViewSet(NetBoxModelViewSet):
-    queryset = SoftwareProductVersion.objects.all()
+    queryset = SoftwareProductVersion.objects.all().order_by("id")
    serializer_class = SoftwareProductVersionSerializer
    filterset_class = SoftwareProductVersionFilterSet


 class SoftwareProductInstallationViewSet(NetBoxModelViewSet):
-    queryset = SoftwareProductInstallation.objects.all()
+    queryset = SoftwareProductInstallation.objects.all().order_by("id")
    serializer_class = SoftwareProductInstallationSerializer
    filterset_class = SoftwareProductInstallationFilterSet


 class SoftwareLicenseViewSet(NetBoxModelViewSet):
-    queryset = SoftwareLicense.objects.all()
+    queryset = SoftwareLicense.objects.all().order_by("id")
    serializer_class = SoftwareLicenseSerializer
    filterset_class = SoftwareLicenseFilterSet
@@ -0,0 +1 @@
+LICENSE_EXPIRING = "netbox_slm_license_expiring"
@@ -1,5 +1,6 @@
 from django.db.models import Q
-from django_filters import CharFilter, ModelMultipleChoiceFilter, MultipleChoiceFilter
+from django.utils.translation import gettext_lazy as _
+from django_filters import CharFilter, ModelMultipleChoiceFilter, MultipleChoiceFilter, NumberFilter

 from dcim.models import Device, Manufacturer
 from netbox.filtersets import NetBoxModelFilterSet
@@ -9,8 +10,10 @@ from netbox_slm.models import (
    SoftwareProductInstallation,
    SoftwareLicense,
    SoftwareReleaseTypes,
+    RenewalIntervalUnits,
 )
 from virtualization.models import Cluster, VirtualMachine
+from tenancy.models import Tenant, TenantGroup


 class SoftwareProductFilterSet(NetBoxModelFilterSet):
@@ -54,7 +57,7 @@ class SoftwareProductVersionFilterSet(NetBoxModelFilterSet):

    software_product_id = ModelMultipleChoiceFilter(
        queryset=SoftwareProduct.objects.all(),
-        label="Software Product",
+        label=_("Software Product"),
    )

    class Meta:
@@ -81,12 +84,12 @@ class SoftwareProductInstallationFilterSet(NetBoxModelFilterSet):
    device_id = ModelMultipleChoiceFilter(queryset=Device.objects.all())
    virtualmachine_id = ModelMultipleChoiceFilter(
        queryset=VirtualMachine.objects.all(),
-        label="Virtual Machine",
+        label=_("Virtual Machine"),
    )
    cluster_id = ModelMultipleChoiceFilter(queryset=Cluster.objects.all())
    software_product_id = ModelMultipleChoiceFilter(
        queryset=SoftwareProduct.objects.all(),
-        label="Software Product",
+        label=_("Software Product"),
    )
    version_id = ModelMultipleChoiceFilter(queryset=SoftwareProductVersion.objects.all())

@@ -113,19 +116,23 @@ class SoftwareLicenseFilterSet(NetBoxModelFilterSet):
    name = CharFilter(lookup_expr="icontains")
    description = CharFilter(lookup_expr="icontains")
    type = CharFilter(lookup_expr="icontains")
-    spdx_expression = CharFilter(lookup_expr="icontains", label="SPDX expression")
+    spdx_expression = CharFilter(lookup_expr="icontains", label=_("SPDX expression"))
    stored_location = CharFilter(lookup_expr="icontains")
+    renewal_interval = NumberFilter()
+    renewal_interval_unit = MultipleChoiceFilter(choices=RenewalIntervalUnits.choices)

    software_product_id = ModelMultipleChoiceFilter(
        queryset=SoftwareProduct.objects.all(),
-        label="Software Product",
+        label=_("Software Product"),
    )
    version_id = ModelMultipleChoiceFilter(queryset=SoftwareProductVersion.objects.all())
    installation_id = ModelMultipleChoiceFilter(queryset=SoftwareProductInstallation.objects.all())
+    tenant_group_id = ModelMultipleChoiceFilter(queryset=TenantGroup.objects.all(), label=_("Tenant Group"))
+    tenant_id = ModelMultipleChoiceFilter(queryset=Tenant.objects.all(), label=_("Tenant"))

    class Meta:
        model = SoftwareLicense
-        fields = ("support",)
+        fields = ("support", "lifetime", "expiration_notifications_enabled", "email_notifications")

    def search(self, queryset, name, value):
        """Perform the filtered search."""
@@ -139,6 +146,8 @@ class SoftwareLicenseFilterSet(NetBoxModelFilterSet):
            | Q(installation__device__name__icontains=value)
            | Q(installation__virtualmachine__name__icontains=value)
            | Q(installation__cluster__name__icontains=value)
+            | Q(tenant_group__name__icontains=value)
+            | Q(tenant__name__icontains=value)
            | Q(comments__icontains=value)
        )
        return queryset.filter(qs_filter)
@@ -1,5 +1,6 @@
-from django.forms import CharField, DateField, ChoiceField, IntegerField, NullBooleanField
+from django.forms import CharField, DateField, ChoiceField, IntegerField, NullBooleanField, Textarea
 from django.urls import reverse_lazy
+from django.utils.translation import gettext_lazy as _

 from netbox.forms import NetBoxModelForm, NetBoxModelFilterSetForm, NetBoxModelImportForm, NetBoxModelBulkEditForm
 from netbox_slm.models import (
@@ -7,8 +8,11 @@ from netbox_slm.models import (
    SoftwareProductVersion,
    SoftwareProductInstallation,
    SoftwareLicense,
+    RenewalIntervalUnits,
+    NotificationIntervalUnits,
    spdx_license_names,
 )
+from tenancy.models import Tenant, TenantGroup
 from utilities.forms.constants import BOOLEAN_WITH_BLANK_CHOICES
 from utilities.forms.fields import (
    CommentField,
@@ -23,16 +27,55 @@ from utilities.forms.widgets import APISelect, DatePicker

 class SoftwareLicenseForm(NetBoxModelForm):
    comments = CommentField()
+    fieldsets = (
+        FieldSet(
+            "name",
+            "description",
+            "software_product",
+            "version",
+            "installation",
+            name=_("Software License"),
+        ),
+        FieldSet("tenant_group", "tenant", name=_("Tenancy")),
+        FieldSet(
+            "type",
+            "spdx_expression",
+            "stored_location",
+            "stored_location_url",
+            "start_date",
+            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
+            "support",
+            "license_amount",
+            name=_("License Details"),
+        ),
+        FieldSet("license_file", "license_key", "provider_portal_url", name=_("License Credentials")),
+        FieldSet(
+            "expiration_notifications_enabled",
+            "default_notification_intervals",
+            "custom_notification_interval",
+            "custom_notification_interval_unit",
+            "email_notifications",
+            name=_("Expiration Notifications"),
+        ),
+        FieldSet("tags", name=_("Tags")),
+    )

-    spdx_expression = ChoiceField(required=False, choices=spdx_license_names(), label="SPDX expression")
+    spdx_expression = ChoiceField(required=False, choices=spdx_license_names(), label=_("SPDX expression"))
    stored_location_url = LaxURLField(required=False)
    start_date = DateField(required=False, widget=DatePicker())
    expiration_date = DateField(required=False, widget=DatePicker())
+    renewal_interval = IntegerField(required=False, min_value=1)
+    license_key = CharField(required=False, widget=Textarea(attrs={"rows": 3}))
+    provider_portal_url = LaxURLField(required=False)
+    custom_notification_interval = IntegerField(required=False, min_value=1)

    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=True,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version = DynamicModelChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
@@ -48,6 +91,17 @@ class SoftwareLicenseForm(NetBoxModelForm):
        ),
        query_params=dict(software_product="$software_product"),
    )
+    tenant_group = DynamicModelChoiceField(
+        queryset=TenantGroup.objects.all(),
+        required=False,
+        label=_("Tenant Group"),
+    )
+    tenant = DynamicModelChoiceField(
+        queryset=Tenant.objects.all(),
+        required=False,
+        query_params={"group_id": "$tenant_group"},
+        label=_("Tenant"),
+    )

    class Meta:
        model = SoftwareLicense
@@ -61,10 +115,23 @@ class SoftwareLicenseForm(NetBoxModelForm):
            "stored_location_url",
            "start_date",
            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
            "support",
            "license_amount",
+            "license_file",
+            "license_key",
+            "provider_portal_url",
+            "expiration_notifications_enabled",
+            "default_notification_intervals",
+            "custom_notification_interval",
+            "custom_notification_interval_unit",
+            "email_notifications",
            "version",
            "installation",
+            "tenant_group",
+            "tenant",
            "tags",
            "comments",
        )
@@ -81,9 +148,16 @@ class SoftwareLicenseFilterForm(NetBoxModelFilterSetForm):
            "spdx_expression",
            "stored_location",
            "support",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
+            "expiration_notifications_enabled",
+            "email_notifications",
            "software_product_id",
            "version_id",
            "installation_id",
+            "tenant_group_id",
+            "tenant_id",
        ),
    )
    selector_fields = ("q", "filter_id", "name")
@@ -93,29 +167,47 @@ class SoftwareLicenseFilterForm(NetBoxModelFilterSetForm):
    name = CharField(required=False)
    description = CharField(required=False)
    type = CharField(required=False)
-    spdx_expression = CharField(required=False, label="SPDX expression")
+    spdx_expression = CharField(required=False, label=_("SPDX expression"))
    stored_location = CharField(required=False)
    support = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    lifetime = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    renewal_interval = IntegerField(required=False, min_value=1)
+    renewal_interval_unit = ChoiceField(required=False, choices=RenewalIntervalUnits.choices)
+    expiration_notifications_enabled = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    email_notifications = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)

    software_product_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
        required=False,
-        label="Version",
+        label=_("Version"),
    )
    installation_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProductInstallation.objects.all(),
        required=False,
-        label="Installation",
+        label=_("Installation"),
+    )
+    tenant_group_id = DynamicModelMultipleChoiceField(
+        queryset=TenantGroup.objects.all(),
+        required=False,
+        label=_("Tenant Group"),
+    )
+    tenant_id = DynamicModelMultipleChoiceField(
+        queryset=Tenant.objects.all(),
+        required=False,
+        query_params={"group_id": "$tenant_group_id"},
+        label=_("Tenant"),
    )


 class SoftwareLicenseBulkImportForm(NetBoxModelImportForm):
-    support = NullBooleanField(required=False, help_text="Support (values other than 'True' and 'False' are ignored)")
+    support = NullBooleanField(
+        required=False, help_text=_("Support (values other than 'True' and 'False' are ignored)")
+    )

    class Meta:
        model = SoftwareLicense
@@ -128,10 +220,22 @@ class SoftwareLicenseBulkImportForm(NetBoxModelImportForm):
            "stored_location",
            "start_date",
            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
            "support",
            "license_amount",
+            "license_key",
+            "provider_portal_url",
+            "expiration_notifications_enabled",
+            "default_notification_intervals",
+            "custom_notification_interval",
+            "custom_notification_interval_unit",
+            "email_notifications",
            "version",
            "installation",
+            "tenant_group",
+            "tenant",
            "tags",
        )

@@ -146,11 +250,23 @@ class SoftwareLicenseBulkEditForm(NetBoxModelBulkEditForm):
            "stored_location_url",
            "start_date",
            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
            "support",
            "license_amount",
+            "license_key",
+            "provider_portal_url",
+            "expiration_notifications_enabled",
+            "default_notification_intervals",
+            "custom_notification_interval",
+            "custom_notification_interval_unit",
+            "email_notifications",
            "software_product",
            "version",
            "installation",
+            "tenant_group",
+            "tenant",
        ),
    )
    nullable_fields = (
@@ -160,28 +276,46 @@ class SoftwareLicenseBulkEditForm(NetBoxModelBulkEditForm):
        "stored_location_url",
        "start_date",
        "expiration_date",
+        "renewal_interval",
+        "renewal_interval_unit",
        "support",
        "license_amount",
+        "license_key",
+        "provider_portal_url",
+        "custom_notification_interval",
+        "custom_notification_interval_unit",
        "version",
        "installation",
+        "tenant_group",
+        "tenant",
    )

    tag = TagFilterField(model)
    comments = CommentField()

    type = CharField(required=False)
-    spdx_expression = ChoiceField(required=False, choices=spdx_license_names(), label="SPDX expression")
+    spdx_expression = ChoiceField(required=False, choices=spdx_license_names(), label=_("SPDX expression"))
    stored_location = CharField(required=False)
    stored_location_url = LaxURLField(required=False)
    start_date = DateField(required=False, widget=DatePicker())
    expiration_date = DateField(required=False, widget=DatePicker())
+    lifetime = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    renewal_interval = IntegerField(required=False, min_value=1)
+    renewal_interval_unit = ChoiceField(required=False, choices=RenewalIntervalUnits.choices)
    support = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
    license_amount = IntegerField(required=False, min_value=0)
+    license_key = CharField(required=False, widget=Textarea(attrs={"rows": 3}))
+    provider_portal_url = LaxURLField(required=False)
+    expiration_notifications_enabled = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    default_notification_intervals = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)
+    custom_notification_interval = IntegerField(required=False, min_value=1)
+    custom_notification_interval_unit = ChoiceField(required=False, choices=NotificationIntervalUnits.choices)
+    email_notifications = ChoiceField(required=False, choices=BOOLEAN_WITH_BLANK_CHOICES)

    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version = DynamicModelChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
@@ -197,3 +331,14 @@ class SoftwareLicenseBulkEditForm(NetBoxModelBulkEditForm):
        ),
        query_params=dict(software_product="$software_product"),
    )
+    tenant_group = DynamicModelChoiceField(
+        queryset=TenantGroup.objects.all(),
+        required=False,
+        label=_("Tenant Group"),
+    )
+    tenant = DynamicModelChoiceField(
+        queryset=Tenant.objects.all(),
+        required=False,
+        query_params={"group_id": "$tenant_group"},
+        label=_("Tenant"),
+    )
@@ -1,4 +1,5 @@
 from django.forms import CharField
+from django.utils.translation import gettext_lazy as _

 from dcim.models import Manufacturer
 from netbox.forms import NetBoxModelForm, NetBoxModelFilterSetForm, NetBoxModelImportForm, NetBoxModelBulkEditForm
@@ -46,7 +47,7 @@ class SoftwareProductFilterForm(NetBoxModelFilterSetForm):
    manufacturer_id = DynamicModelMultipleChoiceField(
        queryset=Manufacturer.objects.all(),
        required=False,
-        label="Manufacturer",
+        label=_("Manufacturer"),
    )


@@ -1,5 +1,6 @@
 from django.forms import ValidationError
 from django.urls import reverse_lazy
+from django.utils.translation import gettext_lazy as _

 from dcim.models import Device
 from netbox.forms import NetBoxModelForm, NetBoxModelFilterSetForm, NetBoxModelImportForm, NetBoxModelBulkEditForm
@@ -17,18 +18,32 @@ from virtualization.models import Cluster, VirtualMachine

 class SoftwareProductInstallationForm(NetBoxModelForm):
    comments = CommentField()
+    fieldsets = (
+        FieldSet("device", "virtualmachine", "cluster", name=_("Platform Destination (select exactly one)")),
+        FieldSet("software_product", "version", name=_("Software")),
+        FieldSet("tags", name=_("Tags")),
+    )

-    device = DynamicModelChoiceField(queryset=Device.objects.all(), required=False)
+    device = DynamicModelChoiceField(
+        queryset=Device.objects.all(),
+        required=False,
+        help_text=_("Select either a device, a virtual machine, or a cluster."),
+    )
    virtualmachine = DynamicModelChoiceField(
        queryset=VirtualMachine.objects.all(),
        required=False,
-        label="Virtual Machine",
+        label=_("Virtual Machine"),
+        help_text=_("Leave empty when another platform destination is selected."),
+    )
+    cluster = DynamicModelChoiceField(
+        queryset=Cluster.objects.all(),
+        required=False,
+        help_text=_("Leave empty when another platform destination is selected."),
    )
-    cluster = DynamicModelChoiceField(queryset=Cluster.objects.all(), required=False)
    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=True,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version = DynamicModelChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
@@ -54,11 +69,22 @@ class SoftwareProductInstallationForm(NetBoxModelForm):
        software_product = self.cleaned_data["software_product"]
        if version not in software_product.softwareproductversion_set.all():
            raise ValidationError(
-                f"Version '{version}' doesn't exist on {software_product}, make sure you've "
-                f"selected a compatible version or first select the software product."
+                _("Version '%(version)s' does not belong to %(product)s. Select a compatible version.")
+                % {"version": version, "product": software_product}
            )
        return version

+    def clean(self):
+        super().clean()
+        destinations = [
+            self.cleaned_data.get("device"),
+            self.cleaned_data.get("virtualmachine"),
+            self.cleaned_data.get("cluster"),
+        ]
+        if sum(destination is not None for destination in destinations) != 1:
+            raise ValidationError(_("Select exactly one platform destination: device, virtual machine, or cluster."))
+        return self.cleaned_data
+

 class SoftwareProductInstallationFilterForm(NetBoxModelFilterSetForm):
    model = SoftwareProductInstallation
@@ -73,27 +99,27 @@ class SoftwareProductInstallationFilterForm(NetBoxModelFilterSetForm):
    device_id = DynamicModelMultipleChoiceField(
        queryset=Device.objects.all(),
        required=False,
-        label="Device",
+        label=_("Device"),
    )
    virtualmachine_id = DynamicModelMultipleChoiceField(
        queryset=VirtualMachine.objects.all(),
        required=False,
-        label="Virtual Machine",
+        label=_("Virtual Machine"),
    )
    cluster_id = DynamicModelMultipleChoiceField(
        queryset=Cluster.objects.all(),
        required=False,
-        label="Cluster",
+        label=_("Cluster"),
    )
    software_product_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
        required=False,
-        label="Version",
+        label=_("Version"),
    )


@@ -122,13 +148,13 @@ class SoftwareProductInstallationBulkEditForm(NetBoxModelBulkEditForm):
    virtualmachine = DynamicModelChoiceField(
        queryset=VirtualMachine.objects.all(),
        required=False,
-        label="Virtual Machine",
+        label=_("Virtual Machine"),
    )
    cluster = DynamicModelChoiceField(queryset=Cluster.objects.all(), required=False)
    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )
    version = DynamicModelChoiceField(
        queryset=SoftwareProductVersion.objects.all(),
@@ -1,5 +1,6 @@
 from django.forms import DateField, CharField, MultipleChoiceField
 from django.urls import reverse_lazy
+from django.utils.translation import gettext_lazy as _

 from dcim.models import Manufacturer
 from netbox.forms import NetBoxModelForm, NetBoxModelFilterSetForm, NetBoxModelImportForm, NetBoxModelBulkEditForm
@@ -23,7 +24,7 @@ class SoftwareProductVersionForm(NetBoxModelForm):
    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=True,
-        label="Software Product",
+        label=_("Software Product"),
        widget=APISelect(attrs={"data-url": reverse_lazy("plugins-api:netbox_slm-api:softwareproduct-list")}),
    )

@@ -64,17 +65,19 @@ class SoftwareProductVersionFilterForm(NetBoxModelFilterSetForm):
    manufacturer_id = DynamicModelMultipleChoiceField(
        queryset=Manufacturer.objects.all(),
        required=False,
-        label="Manufacturer",
+        label=_("Manufacturer"),
    )
    software_product_id = DynamicModelMultipleChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )


 class SoftwareProductVersionBulkImportForm(NetBoxModelImportForm):
-    release_type = CharField(help_text=f"Release type (possible values: {SoftwareReleaseTypes.values})")
+    release_type = CharField(
+        help_text=_("Release type (possible values: %(values)s)") % {"values": SoftwareReleaseTypes.values}
+    )

    class Meta:
        model = SoftwareProductVersion
@@ -122,5 +125,5 @@ class SoftwareProductVersionBulkEditForm(NetBoxModelBulkEditForm):
    software_product = DynamicModelChoiceField(
        queryset=SoftwareProduct.objects.all(),
        required=False,
-        label="Software Product",
+        label=_("Software Product"),
    )
@@ -0,0 +1,91 @@
+from django.conf import settings
+from django.contrib.contenttypes.models import ContentType
+from django.core.mail import send_mail
+from django.utils import timezone
+from django.utils.translation import gettext as _
+
+from core.choices import JobIntervalChoices
+from extras.models import Notification
+from netbox.jobs import JobRunner, system_job
+
+from netbox_slm.events import LICENSE_EXPIRING
+from netbox_slm.models import SoftwareLicense, SoftwareLicenseNotificationLog
+
+
+@system_job(interval=JobIntervalChoices.INTERVAL_DAILY)
+class LicenseExpirationNotificationJob(JobRunner):
+    class Meta:
+        name = "Software License Expiration Notifications"
+
+    def run(self, *args, **kwargs):
+        today = timezone.localdate()
+        licenses = SoftwareLicense.objects.filter(
+            expiration_notifications_enabled=True,
+            lifetime=False,
+            expiration_date__gte=today,
+        ).prefetch_related("subscriptions__user")
+
+        for license in licenses:
+            due_dates = [date for date in license.get_notification_dates() if date <= today]
+            if not due_dates:
+                continue
+
+            for subscription in license.subscriptions.all():
+                user = subscription.user
+                if not user.is_active:
+                    continue
+                # If notifications were enabled late, send only the most recent reminder instead of one per elapsed
+                # interval. Normally this still produces one reminder at each configured threshold.
+                self._notify(license, user, max(due_dates))
+
+    def _notify(self, license, user, notification_date):
+        log = SoftwareLicenseNotificationLog.objects.get_or_create(
+            license=license,
+            user=user,
+            expiration_date=license.expiration_date,
+            notification_date=notification_date,
+        )[0]
+        now = timezone.now()
+
+        object_type = ContentType.objects.get_for_model(license)
+        Notification.objects.update_or_create(
+            object_type=object_type,
+            object_id=license.pk,
+            user=user,
+            defaults={
+                "created": now,
+                "object_repr": Notification.get_object_repr(license),
+                "event_type": LICENSE_EXPIRING,
+                "read": None,
+            },
+        )
+        log.netbox_sent_at = now
+        log.save(update_fields=("netbox_sent_at",))
+        self.logger.info(f"Created NetBox expiration notification for license {license.pk} and user {user}")
+
+        if license.email_notifications and user.email:
+            subject = _("License %(license)s expires on %(date)s") % {
+                "license": license,
+                "date": license.expiration_date,
+            }
+            body = _(
+                "The software license '%(license)s' for '%(product)s' expires on %(date)s."
+            ) % {
+                "license": license,
+                "product": license.software_product,
+                "date": license.expiration_date,
+            }
+            if license.tenant:
+                body += "\n" + _("Tenant: %(tenant)s") % {"tenant": license.tenant}
+            if license.provider_portal_url:
+                body += "\n" + _("Provider portal: %(url)s") % {"url": license.provider_portal_url}
+
+            try:
+                from_email = settings.SERVER_EMAIL or settings.EMAIL_HOST_USER
+                send_mail(subject, body, from_email, [user.email], fail_silently=False)
+            except Exception:
+                self.logger.exception(f"Failed to send expiration email for license {license.pk} to user {user}")
+            else:
+                log.email_sent_at = now
+                log.save(update_fields=("email_sent_at",))
+                self.logger.info(f"Sent expiration email for license {license.pk} to user {user}")
@@ -0,0 +1,419 @@
+msgid ""
+msgstr ""
+"Project-Id-Version: netbox-slm 1.9.1\n"
+"Language: de\n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: 8bit\n"
+"Plural-Forms: nplurals=2; plural=(n != 1);\n"
+
+msgid "Add"
+msgstr "Hinzufügen"
+
+msgid "Import"
+msgstr "Importieren"
+
+msgid "Software Lifecycle"
+msgstr "Software-Lebenszyklus"
+
+msgid "Software Products"
+msgstr "Softwareprodukte"
+
+msgid "Software Product"
+msgstr "Softwareprodukt"
+
+msgid "Software Product Version"
+msgstr "Softwareproduktversion"
+
+msgid "Software Product Installation"
+msgstr "Softwareproduktinstallation"
+
+msgid "Software License"
+msgstr "Softwarelizenz"
+
+msgid "License Details"
+msgstr "Lizenzdetails"
+
+msgid "Versions"
+msgstr "Versionen"
+
+msgid "Version"
+msgstr "Version"
+
+msgid "Installations"
+msgstr "Installationen"
+
+msgid "Installation"
+msgstr "Installation"
+
+msgid "Add an installation"
+msgstr "Installation hinzufügen"
+
+msgid "Licenses"
+msgstr "Lizenzen"
+
+msgid "Tenancy"
+msgstr "Mandantenzuordnung"
+
+msgid "Tenant Group"
+msgstr "Mandantengruppe"
+
+msgid "Tenant"
+msgstr "Mandant"
+
+msgid "Manufacturer"
+msgstr "Hersteller"
+
+msgid "Device"
+msgstr "Gerät"
+
+msgid "Virtual Machine"
+msgstr "Virtuelle Maschine"
+
+msgid "Cluster"
+msgstr "Cluster"
+
+msgid "Name"
+msgstr "Name"
+
+msgid "Description"
+msgstr "Beschreibung"
+
+msgid "Type"
+msgstr "Typ"
+
+msgid "SPDX expression"
+msgstr "SPDX-Ausdruck"
+
+msgid "Stored location"
+msgstr "Ablageort"
+
+msgid "Start date"
+msgstr "Startdatum"
+
+msgid "Expiration date"
+msgstr "Ablaufdatum"
+
+msgid "Support"
+msgstr "Support"
+
+msgid "License amount"
+msgstr "Lizenzanzahl"
+
+msgid "Release date"
+msgstr "Veröffentlichungsdatum"
+
+msgid "Documentation URL"
+msgstr "Dokumentations-URL"
+
+msgid "End of support"
+msgstr "Supportende"
+
+msgid "Filename"
+msgstr "Dateiname"
+
+msgid "File checksum"
+msgstr "Dateiprüfsumme"
+
+msgid "Release type"
+msgstr "Veröffentlichungstyp"
+
+msgid "Release candidate"
+msgstr "Veröffentlichungskandidat"
+
+msgid "Stable release"
+msgstr "Stabile Veröffentlichung"
+
+msgid "Alpha"
+msgstr "Alpha"
+
+msgid "Beta"
+msgstr "Beta"
+
+msgid "Tags"
+msgstr "Tags"
+
+msgid "None"
+msgstr "Keine"
+
+msgid "Link"
+msgstr "Link"
+
+msgid "Support (values other than 'True' and 'False' are ignored)"
+msgstr "Support (andere Werte als ‚True‘ und ‚False‘ werden ignoriert)"
+
+msgid "Release type (possible values: %(values)s)"
+msgstr "Veröffentlichungstyp (mögliche Werte: %(values)s)"
+
+msgid "Version '%(version)s' does not belong to %(product)s. Select a compatible version."
+msgstr "Version ‚%(version)s‘ gehört nicht zu %(product)s. Wähle eine kompatible Version aus."
+
+msgid "Installation requires exactly one platform destination."
+msgstr "Eine Installation benötigt genau ein Plattformziel."
+
+msgid "%(value)s is not a known SPDX license expression"
+msgstr "%(value)s ist kein bekannter SPDX-Lizenzausdruck"
+
+msgid "The selected tenant does not belong to the selected tenant group."
+msgstr "Der ausgewählte Mandant gehört nicht zur ausgewählten Mandantengruppe."
+
+msgid "Software Lifecycle Management"
+msgstr "Software-Lebenszyklusverwaltung"
+
+msgid "Software Lifecycle Management NetBox Plugin."
+msgstr "NetBox-Plugin zur Verwaltung des Software-Lebenszyklus."
+
+msgid "name"
+msgstr "Name"
+
+msgid "comments"
+msgstr "Kommentare"
+
+msgid "description"
+msgstr "Beschreibung"
+
+msgid "manufacturer"
+msgstr "Hersteller"
+
+msgid "software product"
+msgstr "Softwareprodukt"
+
+msgid "software products"
+msgstr "Softwareprodukte"
+
+msgid "release date"
+msgstr "Veröffentlichungsdatum"
+
+msgid "documentation URL"
+msgstr "Dokumentations-URL"
+
+msgid "end of support"
+msgstr "Supportende"
+
+msgid "filename"
+msgstr "Dateiname"
+
+msgid "file checksum"
+msgstr "Dateiprüfsumme"
+
+msgid "file link"
+msgstr "Dateilink"
+
+msgid "release type"
+msgstr "Veröffentlichungstyp"
+
+msgid "software product version"
+msgstr "Softwareproduktversion"
+
+msgid "software product versions"
+msgstr "Softwareproduktversionen"
+
+msgid "device"
+msgstr "Gerät"
+
+msgid "virtual machine"
+msgstr "Virtuelle Maschine"
+
+msgid "cluster"
+msgstr "Cluster"
+
+msgid "version"
+msgstr "Version"
+
+msgid "software product installation"
+msgstr "Softwareproduktinstallation"
+
+msgid "software product installations"
+msgstr "Softwareproduktinstallationen"
+
+msgid "type"
+msgstr "Typ"
+
+msgid "stored location"
+msgstr "Ablageort"
+
+msgid "stored location URL"
+msgstr "Ablageort-URL"
+
+msgid "start date"
+msgstr "Startdatum"
+
+msgid "expiration date"
+msgstr "Ablaufdatum"
+
+msgid "support"
+msgstr "Support"
+
+msgid "license amount"
+msgstr "Lizenzanzahl"
+
+msgid "installation"
+msgstr "Installation"
+
+msgid "tenant group"
+msgstr "Mandantengruppe"
+
+msgid "tenant"
+msgstr "Mandant"
+
+msgid "software license"
+msgstr "Softwarelizenz"
+
+msgid "software licenses"
+msgstr "Softwarelizenzen"
+
+msgid "Days"
+msgstr "Tage"
+
+msgid "Months"
+msgstr "Monate"
+
+msgid "Years"
+msgstr "Jahre"
+
+msgid "lifetime license"
+msgstr "Lifetime-Lizenz"
+
+msgid "renewal interval"
+msgstr "Erneuerungsintervall"
+
+msgid "renewal interval unit"
+msgstr "Einheit des Erneuerungsintervalls"
+
+msgid "license file"
+msgstr "Lizenzdatei"
+
+msgid "license key"
+msgstr "Lizenzschlüssel"
+
+msgid "provider portal URL"
+msgstr "Anbieterportal-URL"
+
+msgid "License Credentials"
+msgstr "Lizenzdaten"
+
+msgid "Lifetime license"
+msgstr "Lifetime-Lizenz"
+
+msgid "Renewal interval"
+msgstr "Erneuerungsintervall"
+
+msgid "License file"
+msgstr "Lizenzdatei"
+
+msgid "Download license file"
+msgstr "Lizenzdatei herunterladen"
+
+msgid "License key"
+msgstr "Lizenzschlüssel"
+
+msgid "Provider Portal"
+msgstr "Anbieterportal"
+
+msgid "Yes"
+msgstr "Ja"
+
+msgid "No"
+msgstr "Nein"
+
+msgid "Renewal interval and unit must be specified together."
+msgstr "Erneuerungsintervall und Einheit müssen gemeinsam angegeben werden."
+
+msgid "A lifetime license cannot have a renewal interval or expiration date."
+msgstr "Eine Lifetime-Lizenz darf kein Erneuerungsintervall und kein Ablaufdatum haben."
+
+msgid "Platform Destination (select exactly one)"
+msgstr "Plattformziel (genau eines auswählen)"
+
+msgid "Software"
+msgstr "Software"
+
+msgid "Select either a device, a virtual machine, or a cluster."
+msgstr "Wähle entweder ein Gerät, eine virtuelle Maschine oder einen Cluster aus."
+
+msgid "Leave empty when another platform destination is selected."
+msgstr "Leer lassen, wenn ein anderes Plattformziel ausgewählt wurde."
+
+msgid "Select exactly one platform destination: device, virtual machine, or cluster."
+msgstr "Wähle genau ein Plattformziel aus: Gerät, virtuelle Maschine oder Cluster."
+
+msgid "Weeks"
+msgstr "Wochen"
+
+msgid "expiration notifications"
+msgstr "Ablaufbenachrichtigungen"
+
+msgid "default notification intervals"
+msgstr "Standard-Benachrichtigungsintervalle"
+
+msgid "custom notification interval"
+msgstr "Eigene Vorwarnzeit"
+
+msgid "custom notification interval unit"
+msgstr "Einheit der eigenen Vorwarnzeit"
+
+msgid "email notifications"
+msgstr "E-Mail-Benachrichtigungen"
+
+msgid "Expiration Notifications"
+msgstr "Ablaufbenachrichtigungen"
+
+msgid "Custom notification interval and unit must be specified together."
+msgstr "Eigene Vorwarnzeit und Einheit müssen gemeinsam angegeben werden."
+
+msgid "License expiring"
+msgstr "Lizenz läuft ab"
+
+msgid "License %(license)s expires on %(date)s"
+msgstr "Lizenz %(license)s läuft am %(date)s ab"
+
+msgid "The software license '%(license)s' for '%(product)s' expires on %(date)s."
+msgstr "Die Softwarelizenz ‚%(license)s‘ für ‚%(product)s‘ läuft am %(date)s ab."
+
+msgid "Tenant: %(tenant)s"
+msgstr "Mandant: %(tenant)s"
+
+msgid "Provider portal: %(url)s"
+msgstr "Anbieterportal: %(url)s"
+
+msgid "Expiration notifications"
+msgstr "Ablaufbenachrichtigungen"
+
+msgid "Default notification intervals"
+msgstr "Standard-Benachrichtigungsintervalle"
+
+msgid "One month and one week before expiration"
+msgstr "Einen Monat und eine Woche vor Ablauf"
+
+msgid "Disabled"
+msgstr "Deaktiviert"
+
+msgid "Enabled"
+msgstr "Aktiviert"
+
+msgid "Custom notification interval"
+msgstr "Eigene Vorwarnzeit"
+
+msgid "Email notifications"
+msgstr "E-Mail-Benachrichtigungen"
+
+msgid "Notification recipients"
+msgstr "Benachrichtigungsempfänger"
+
+msgid "No subscribers. Users can subscribe to this license using the Subscribe action."
+msgstr "Keine Abonnenten. Benutzer können diese Lizenz über die Aktion ‚Abonnieren‘ abonnieren."
+
+msgid "Licences"
+msgstr "Lizenzen"
+
+msgid "Licence Management NetBox Plugin."
+msgstr "NetBox-Plugin zur Lizenzverwaltung."
+
+msgid "Can manage license email notifications"
+msgstr "Kann E-Mail-Benachrichtigungen für Lizenzen verwalten"
+
+msgid "You do not have permission to change email notifications."
+msgstr "Sie haben keine Berechtigung, E-Mail-Benachrichtigungen zu ändern."
+
+msgid "Only administrators or explicitly authorized users can change this setting."
+msgstr "Nur Administratoren oder ausdrücklich berechtigte Benutzer können diese Einstellung ändern."
@@ -24,6 +24,6 @@ class Migration(migrations.Migration):
        ),
        migrations.AddConstraint(
            model_name='softwareproductinstallation',
-            constraint=models.CheckConstraint(check=models.Q(models.Q(('cluster__isnull', True), ('device__isnull', False), ('virtualmachine__isnull', True)), models.Q(('cluster__isnull', True), ('device__isnull', True), ('virtualmachine__isnull', False)), models.Q(('cluster__isnull', False), ('device__isnull', True), ('virtualmachine__isnull', True)), _connector='OR'), name='netbox_slm_softwareproductinstallation_platform', violation_error_message='Installation requires exactly one platform destination.'),
+            constraint=models.CheckConstraint(condition=models.Q(models.Q(('cluster__isnull', True), ('device__isnull', False), ('virtualmachine__isnull', True)), models.Q(('cluster__isnull', True), ('device__isnull', True), ('virtualmachine__isnull', False)), models.Q(('cluster__isnull', False), ('device__isnull', True), ('virtualmachine__isnull', True)), _connector='OR'), name='netbox_slm_softwareproductinstallation_platform', violation_error_message='Installation requires exactly one platform destination.'),
        ),
    ]
@@ -0,0 +1,34 @@
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("tenancy", "0001_initial"),
+        ("netbox_slm", "0010_softwarelicense_spdx_expression"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="tenant_group",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="software_licenses",
+                to="tenancy.tenantgroup",
+            ),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="tenant",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="software_licenses",
+                to="tenancy.tenant",
+            ),
+        ),
+    ]
@@ -0,0 +1,51 @@
+from django.db import migrations, models
+import django.core.validators
+import netbox_slm.models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("netbox_slm", "0011_softwarelicense_tenancy"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="softwarelicense",
+            name="type",
+            field=models.CharField(blank=True, max_length=128),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="lifetime",
+            field=models.BooleanField(default=False),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="renewal_interval",
+            field=models.PositiveIntegerField(blank=True, null=True, validators=[django.core.validators.MinValueValidator(1)]),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="renewal_interval_unit",
+            field=models.CharField(
+                blank=True,
+                choices=[("days", "Days"), ("months", "Months"), ("years", "Years")],
+                max_length=8,
+            ),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="license_file",
+            field=models.FileField(blank=True, null=True, upload_to="netbox_slm/licenses/"),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="license_key",
+            field=models.TextField(blank=True),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="provider_portal_url",
+            field=netbox_slm.models.LaxURLField(blank=True, max_length=1024, null=True),
+        ),
+    ]
@@ -0,0 +1,77 @@
+import django.core.validators
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+        ("netbox_slm", "0012_softwarelicense_renewal_and_credentials"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="expiration_notifications_enabled",
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="default_notification_intervals",
+            field=models.BooleanField(default=True),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="custom_notification_interval",
+            field=models.PositiveIntegerField(
+                blank=True, null=True, validators=[django.core.validators.MinValueValidator(1)]
+            ),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="custom_notification_interval_unit",
+            field=models.CharField(
+                blank=True,
+                choices=[("days", "Days"), ("weeks", "Weeks"), ("months", "Months")],
+                max_length=8,
+            ),
+        ),
+        migrations.AddField(
+            model_name="softwarelicense",
+            name="email_notifications",
+            field=models.BooleanField(default=False),
+        ),
+        migrations.CreateModel(
+            name="SoftwareLicenseNotificationLog",
+            fields=[
+                ("id", models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name="ID")),
+                ("expiration_date", models.DateField()),
+                ("notification_date", models.DateField()),
+                ("netbox_sent_at", models.DateTimeField(blank=True, null=True)),
+                ("email_sent_at", models.DateTimeField(blank=True, null=True)),
+                (
+                    "license",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        related_name="notification_logs",
+                        to="netbox_slm.softwarelicense",
+                    ),
+                ),
+                (
+                    "user",
+                    models.ForeignKey(
+                        on_delete=django.db.models.deletion.CASCADE,
+                        to=settings.AUTH_USER_MODEL,
+                    ),
+                ),
+            ],
+        ),
+        migrations.AddConstraint(
+            model_name="softwarelicensenotificationlog",
+            constraint=models.UniqueConstraint(
+                fields=("license", "user", "expiration_date", "notification_date"),
+                name="netbox_slm_license_notification_unique",
+            ),
+        ),
+    ]
@@ -0,0 +1,23 @@
+from django.db import migrations
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("netbox_slm", "0013_license_expiration_notifications"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="softwarelicense",
+            options={
+                "permissions": [
+                    (
+                        "manage_softwarelicense_email_notifications",
+                        "Can manage license email notifications",
+                    )
+                ],
+                "verbose_name": "software license",
+                "verbose_name_plural": "software licenses",
+            },
+        ),
+    ]
@@ -1,7 +1,13 @@
+import calendar
+from datetime import timedelta
+
+from django.conf import settings
 from django.core.exceptions import ValidationError
+from django.core.validators import MinValueValidator
 from django.db import models
 from django.urls import reverse
-from django.utils.html import format_html, urlencode
+from django.utils.html import format_html
+from django.utils.translation import gettext_lazy as _
 from license_expression import Licensing, get_spdx_licensing

 from netbox.models import NetBoxModel
@@ -21,14 +27,20 @@ class LaxURLField(models.URLField):


 class SoftwareProduct(NetBoxModel):
-    name = models.CharField(max_length=128)
-    comments = models.TextField(blank=True)
+    name = models.CharField(_("name"), max_length=128)
+    comments = models.TextField(_("comments"), blank=True)

-    description = models.CharField(max_length=255, null=True, blank=True)
-    manufacturer = models.ForeignKey(to="dcim.Manufacturer", on_delete=models.PROTECT, null=True, blank=True)
+    description = models.CharField(_("description"), max_length=255, null=True, blank=True)
+    manufacturer = models.ForeignKey(
+        to="dcim.Manufacturer", verbose_name=_("manufacturer"), on_delete=models.PROTECT, null=True, blank=True
+    )

    objects = RestrictedQuerySet.as_manager()

+    class Meta:
+        verbose_name = _("software product")
+        verbose_name_plural = _("software products")
+
    def __str__(self):
        return self.name

@@ -37,32 +49,45 @@ class SoftwareProduct(NetBoxModel):

    def get_installation_count(self):
        count = SoftwareProductInstallation.objects.filter(software_product_id=self.pk).count()
-        query_string = urlencode(dict(software_product_id=self.pk))
-        search_target = reverse("plugins:netbox_slm:softwareproductinstallation_list")
-        # Can be composed directly with reverse(query=) in Django 5.2, see https://code.djangoproject.com/ticket/25582
-        return format_html(f"<a href='{search_target}?{query_string}'>{count}</a>") if count else "0"
+        search_target = reverse(
+            "plugins:netbox_slm:softwareproductinstallation_list", query={"software_product_id": self.pk}
+        )
+        return format_html("<a href='{}'>{}</a>", search_target, count) if count else "0"


 class SoftwareReleaseTypes(models.TextChoices):
-    ALPHA = "A", "Alpha"
-    BETA = "B", "Beta"
-    RELEASE_CANDIDATE = "RC", "Release candidate"
-    STABLE = "S", "Stable release"
+    ALPHA = "A", _("Alpha")
+    BETA = "B", _("Beta")
+    RELEASE_CANDIDATE = "RC", _("Release candidate")
+    STABLE = "S", _("Stable release")
+
+
+class RenewalIntervalUnits(models.TextChoices):
+    DAYS = "days", _("Days")
+    MONTHS = "months", _("Months")
+    YEARS = "years", _("Years")
+
+
+class NotificationIntervalUnits(models.TextChoices):
+    DAYS = "days", _("Days")
+    WEEKS = "weeks", _("Weeks")
+    MONTHS = "months", _("Months")


 class SoftwareProductVersion(NetBoxModel):
-    name = models.CharField(max_length=64)
-    comments = models.TextField(blank=True)
+    name = models.CharField(_("name"), max_length=64)
+    comments = models.TextField(_("comments"), blank=True)

-    description = models.CharField(max_length=255, null=True, blank=True)
-    release_date = models.DateField(null=True, blank=True)
-    documentation_url = LaxURLField(max_length=1024, null=True, blank=True)
-    end_of_support = models.DateField(null=True, blank=True)
-    filename = models.CharField(max_length=64, null=True, blank=True)
-    file_checksum = models.CharField(max_length=128, null=True, blank=True)
-    file_link = LaxURLField(max_length=1024, null=True, blank=True)
+    description = models.CharField(_("description"), max_length=255, null=True, blank=True)
+    release_date = models.DateField(_("release date"), null=True, blank=True)
+    documentation_url = LaxURLField(_("documentation URL"), max_length=1024, null=True, blank=True)
+    end_of_support = models.DateField(_("end of support"), null=True, blank=True)
+    filename = models.CharField(_("filename"), max_length=64, null=True, blank=True)
+    file_checksum = models.CharField(_("file checksum"), max_length=128, null=True, blank=True)
+    file_link = LaxURLField(_("file link"), max_length=1024, null=True, blank=True)

    release_type = models.CharField(
+        _("release type"),
        max_length=3,
        choices=SoftwareReleaseTypes.choices,
        default=SoftwareReleaseTypes.STABLE,
@@ -70,11 +95,16 @@ class SoftwareProductVersion(NetBoxModel):

    software_product = models.ForeignKey(
        to="netbox_slm.SoftwareProduct",
+        verbose_name=_("software product"),
        on_delete=models.PROTECT,
    )

    objects = RestrictedQuerySet.as_manager()

+    class Meta:
+        verbose_name = _("software product version")
+        verbose_name_plural = _("software product versions")
+
    def __str__(self):
        return self.name

@@ -83,22 +113,32 @@ class SoftwareProductVersion(NetBoxModel):

    def get_installation_count(self):
        count = SoftwareProductInstallation.objects.filter(version_id=self.pk).count()
-        query_string = urlencode(dict(version_id=self.pk))
-        search_target = reverse("plugins:netbox_slm:softwareproductinstallation_list")
-        # Can be composed directly with reverse(query=) in Django 5.2, see https://code.djangoproject.com/ticket/25582
-        return format_html(f"<a href='{search_target}?{query_string}'>{count}</a>") if count else "0"
+        search_target = reverse("plugins:netbox_slm:softwareproductinstallation_list", query={"version_id": self.pk})
+        return format_html("<a href='{}'>{}</a>", search_target, count) if count else "0"


 class SoftwareProductInstallation(NetBoxModel):
-    comments = models.TextField(blank=True)
+    comments = models.TextField(_("comments"), blank=True)

-    device = models.ForeignKey(to="dcim.Device", on_delete=models.PROTECT, null=True, blank=True)
-    virtualmachine = models.ForeignKey(
-        to="virtualization.VirtualMachine", on_delete=models.PROTECT, null=True, blank=True
+    device = models.ForeignKey(
+        to="dcim.Device", verbose_name=_("device"), on_delete=models.PROTECT, null=True, blank=True
+    )
+    virtualmachine = models.ForeignKey(
+        to="virtualization.VirtualMachine",
+        verbose_name=_("virtual machine"),
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+    )
+    cluster = models.ForeignKey(
+        to="virtualization.Cluster", verbose_name=_("cluster"), on_delete=models.PROTECT, null=True, blank=True
+    )
+    software_product = models.ForeignKey(
+        to="netbox_slm.SoftwareProduct", verbose_name=_("software product"), on_delete=models.PROTECT
+    )
+    version = models.ForeignKey(
+        to="netbox_slm.SoftwareProductVersion", verbose_name=_("version"), on_delete=models.PROTECT
    )
-    cluster = models.ForeignKey(to="virtualization.Cluster", on_delete=models.PROTECT, null=True, blank=True)
-    software_product = models.ForeignKey(to="netbox_slm.SoftwareProduct", on_delete=models.PROTECT)
-    version = models.ForeignKey(to="netbox_slm.SoftwareProductVersion", on_delete=models.PROTECT)

    objects = RestrictedQuerySet.as_manager()

@@ -106,15 +146,19 @@ class SoftwareProductInstallation(NetBoxModel):
        return f"{self.pk} ({self.platform})"

    class Meta:
+        verbose_name = _("software product installation")
+        verbose_name_plural = _("software product installations")
        constraints = [
            models.CheckConstraint(
                name="%(app_label)s_%(class)s_platform",
-                check=(
+                condition=(
                    models.Q(device__isnull=False, virtualmachine__isnull=True, cluster__isnull=True)
                    | models.Q(device__isnull=True, virtualmachine__isnull=False, cluster__isnull=True)
                    | models.Q(device__isnull=True, virtualmachine__isnull=True, cluster__isnull=False)
                ),
-                violation_error_message="Installation requires exactly one platform destination.",
+                violation_error_message=_(
+                    "Select exactly one platform destination: device, virtual machine, or cluster."
+                ),
            )
        ]

@@ -143,39 +187,169 @@ def spdx_license_names():
 def validate_spdx_expression(value):
    expression_info = spdx_licensing.validate(value)
    if expression_info.errors:
-        raise ValidationError(f"{value} is not a known SPDX license expression")
+        raise ValidationError(_("%(value)s is not a known SPDX license expression") % {"value": value})


 class SoftwareLicense(NetBoxModel):
-    name = models.CharField(max_length=128)
-    comments = models.TextField(blank=True)
+    name = models.CharField(_("name"), max_length=128)
+    comments = models.TextField(_("comments"), blank=True)

-    description = models.CharField(max_length=255, null=True, blank=True)
-    type = models.CharField(max_length=128)
-    spdx_expression = models.CharField(max_length=64, null=True, blank=True, validators=[validate_spdx_expression])
-    stored_location = models.CharField(max_length=255, null=True, blank=True)
-    stored_location_url = LaxURLField(max_length=1024, null=True, blank=True)
-    start_date = models.DateField(null=True, blank=True)
-    expiration_date = models.DateField(null=True, blank=True)
-    support = models.BooleanField(default=None, null=True, blank=True)
-    license_amount = models.PositiveIntegerField(default=None, null=True, blank=True)
+    description = models.CharField(_("description"), max_length=255, null=True, blank=True)
+    type = models.CharField(_("type"), max_length=128, blank=True)
+    spdx_expression = models.CharField(
+        _("SPDX expression"), max_length=64, null=True, blank=True, validators=[validate_spdx_expression]
+    )
+    stored_location = models.CharField(_("stored location"), max_length=255, null=True, blank=True)
+    stored_location_url = LaxURLField(_("stored location URL"), max_length=1024, null=True, blank=True)
+    start_date = models.DateField(_("start date"), null=True, blank=True)
+    expiration_date = models.DateField(_("expiration date"), null=True, blank=True)
+    support = models.BooleanField(_("support"), default=None, null=True, blank=True)
+    license_amount = models.PositiveIntegerField(_("license amount"), default=None, null=True, blank=True)
+    lifetime = models.BooleanField(_("lifetime license"), default=False)
+    renewal_interval = models.PositiveIntegerField(
+        _("renewal interval"), null=True, blank=True, validators=[MinValueValidator(1)]
+    )
+    renewal_interval_unit = models.CharField(
+        _("renewal interval unit"), max_length=8, choices=RenewalIntervalUnits.choices, blank=True
+    )
+    license_file = models.FileField(_("license file"), upload_to="netbox_slm/licenses/", null=True, blank=True)
+    license_key = models.TextField(_("license key"), blank=True)
+    provider_portal_url = LaxURLField(_("provider portal URL"), max_length=1024, null=True, blank=True)
+    expiration_notifications_enabled = models.BooleanField(_("expiration notifications"), default=True)
+    default_notification_intervals = models.BooleanField(_("default notification intervals"), default=True)
+    custom_notification_interval = models.PositiveIntegerField(
+        _("custom notification interval"), null=True, blank=True, validators=[MinValueValidator(1)]
+    )
+    custom_notification_interval_unit = models.CharField(
+        _("custom notification interval unit"),
+        max_length=8,
+        choices=NotificationIntervalUnits.choices,
+        blank=True,
+    )
+    email_notifications = models.BooleanField(_("email notifications"), default=False)

-    software_product = models.ForeignKey(to="netbox_slm.SoftwareProduct", on_delete=models.PROTECT)
-    version = models.ForeignKey(to="netbox_slm.SoftwareProductVersion", on_delete=models.PROTECT, null=True, blank=True)
+    software_product = models.ForeignKey(
+        to="netbox_slm.SoftwareProduct", verbose_name=_("software product"), on_delete=models.PROTECT
+    )
+    version = models.ForeignKey(
+        to="netbox_slm.SoftwareProductVersion",
+        verbose_name=_("version"),
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+    )
    installation = models.ForeignKey(
-        to="netbox_slm.SoftwareProductInstallation", on_delete=models.SET_NULL, null=True, blank=True
+        to="netbox_slm.SoftwareProductInstallation",
+        verbose_name=_("installation"),
+        on_delete=models.SET_NULL,
+        null=True,
+        blank=True,
+    )
+    tenant_group = models.ForeignKey(
+        to="tenancy.TenantGroup",
+        verbose_name=_("tenant group"),
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+        related_name="software_licenses",
+    )
+    tenant = models.ForeignKey(
+        to="tenancy.Tenant",
+        verbose_name=_("tenant"),
+        on_delete=models.PROTECT,
+        null=True,
+        blank=True,
+        related_name="software_licenses",
    )

    objects = RestrictedQuerySet.as_manager()

+    class Meta:
+        verbose_name = _("software license")
+        verbose_name_plural = _("software licenses")
+        permissions = [
+            ("manage_softwarelicense_email_notifications", _("Can manage license email notifications")),
+        ]
+
    def __str__(self):
        return self.name

    def get_absolute_url(self):
        return reverse("plugins:netbox_slm:softwarelicense", kwargs={"pk": self.pk})

+    def clean(self):
+        super().clean()
+        if self.tenant_group and self.tenant and self.tenant.group_id != self.tenant_group_id:
+            raise ValidationError(
+                {"tenant": _("The selected tenant does not belong to the selected tenant group.")}
+            )
+        if bool(self.renewal_interval) != bool(self.renewal_interval_unit):
+            raise ValidationError(
+                {"renewal_interval": _("Renewal interval and unit must be specified together.")}
+            )
+        if self.lifetime and (self.renewal_interval or self.renewal_interval_unit or self.expiration_date):
+            raise ValidationError(
+                {"lifetime": _("A lifetime license cannot have a renewal interval or expiration date.")}
+            )
+        if bool(self.custom_notification_interval) != bool(self.custom_notification_interval_unit):
+            raise ValidationError(
+                {
+                    "custom_notification_interval": _(
+                        "Custom notification interval and unit must be specified together."
+                    )
+                }
+            )
+
+    @staticmethod
+    def _subtract_months(value, months):
+        month_index = value.year * 12 + value.month - 1 - months
+        year, zero_based_month = divmod(month_index, 12)
+        month = zero_based_month + 1
+        day = min(value.day, calendar.monthrange(year, month)[1])
+        return value.replace(year=year, month=month, day=day)
+
+    def get_notification_dates(self):
+        """Return unique reminder dates for the current expiration date."""
+        if not self.expiration_notifications_enabled or self.lifetime or not self.expiration_date:
+            return []
+
+        dates = set()
+        if self.default_notification_intervals:
+            dates.add(self._subtract_months(self.expiration_date, 1))
+            dates.add(self.expiration_date - timedelta(weeks=1))
+
+        if self.custom_notification_interval and self.custom_notification_interval_unit:
+            amount = self.custom_notification_interval
+            if self.custom_notification_interval_unit == NotificationIntervalUnits.MONTHS:
+                dates.add(self._subtract_months(self.expiration_date, amount))
+            elif self.custom_notification_interval_unit == NotificationIntervalUnits.WEEKS:
+                dates.add(self.expiration_date - timedelta(weeks=amount))
+            else:
+                dates.add(self.expiration_date - timedelta(days=amount))
+
+        return sorted(dates)
+
    @property
    def stored_location_txt(self):
        if self.stored_location_url and not self.stored_location:
-            return "Link"
+            return _("Link")
        return self.stored_location
+
+
+class SoftwareLicenseNotificationLog(models.Model):
+    license = models.ForeignKey(
+        to="netbox_slm.SoftwareLicense", on_delete=models.CASCADE, related_name="notification_logs"
+    )
+    user = models.ForeignKey(to=settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+    expiration_date = models.DateField()
+    notification_date = models.DateField()
+    netbox_sent_at = models.DateTimeField(null=True, blank=True)
+    email_sent_at = models.DateTimeField(null=True, blank=True)
+
+    class Meta:
+        constraints = [
+            models.UniqueConstraint(
+                fields=("license", "user", "expiration_date", "notification_date"),
+                name="netbox_slm_license_notification_unique",
+            )
+        ]
@@ -1,21 +1,22 @@
 from netbox.plugins import PluginMenuButton, PluginMenuItem, PluginMenu, get_plugin_config
+from django.utils.translation import gettext_lazy as _
 from . import SLMConfig

 slm_items = (
    PluginMenuItem(
        link="plugins:netbox_slm:softwareproduct_list",
-        link_text="Software Products",
+        link_text=_("Software Products"),
        permissions=["netbox_slm.add_softwareproduct"],
        buttons=(
            PluginMenuButton(
                "plugins:netbox_slm:softwareproduct_add",
-                "Add",
+                _("Add"),
                "mdi mdi-plus-thick",
                permissions=["netbox_slm.add_softwareproduct"],
            ),
            PluginMenuButton(
                "plugins:netbox_slm:softwareproduct_bulk_import",
-                "Import",
+                _("Import"),
                "mdi mdi-upload",
                permissions=["netbox_slm.import_softwareproduct"],
            ),
@@ -23,18 +24,18 @@ slm_items = (
    ),
    PluginMenuItem(
        link="plugins:netbox_slm:softwareproductversion_list",
-        link_text="Versions",
+        link_text=_("Versions"),
        permissions=["netbox_slm.add_softwareproductversion"],
        buttons=(
            PluginMenuButton(
                "plugins:netbox_slm:softwareproductversion_add",
-                "Add",
+                _("Add"),
                "mdi mdi-plus-thick",
                permissions=["netbox_slm.add_softwareproductversion"],
            ),
            PluginMenuButton(
                "plugins:netbox_slm:softwareproductversion_bulk_import",
-                "Import",
+                _("Import"),
                "mdi mdi-upload",
                permissions=["netbox_slm.import_softwareproductversion"],
            ),
@@ -42,18 +43,18 @@ slm_items = (
    ),
    PluginMenuItem(
        link="plugins:netbox_slm:softwareproductinstallation_list",
-        link_text="Installations",
+        link_text=_("Installations"),
        permissions=["netbox_slm.add_softwareproductinstallation"],
        buttons=(
            PluginMenuButton(
                "plugins:netbox_slm:softwareproductinstallation_add",
-                "Add",
+                _("Add"),
                "mdi mdi-plus-thick",
                permissions=["netbox_slm.add_softwareproductinstallation"],
            ),
            PluginMenuButton(
                "plugins:netbox_slm:softwareproductinstallation_bulk_import",
-                "Import",
+                _("Import"),
                "mdi mdi-upload",
                permissions=["netbox_slm.import_softwareproductinstallation"],
            ),
@@ -61,18 +62,18 @@ slm_items = (
    ),
    PluginMenuItem(
        link="plugins:netbox_slm:softwarelicense_list",
-        link_text="Licenses",
+        link_text=_("Licenses"),
        permissions=["netbox_slm.add_softwarelicense"],
        buttons=(
            PluginMenuButton(
                "plugins:netbox_slm:softwarelicense_add",
-                "Add",
+                _("Add"),
                "mdi mdi-plus-thick",
                permissions=["netbox_slm.add_softwarelicense"],
            ),
            PluginMenuButton(
                "plugins:netbox_slm:softwarelicense_bulk_import",
-                "Import",
+                _("Import"),
                "mdi mdi-upload",
                permissions=["netbox_slm.import_softwarelicense"],
            ),
@@ -82,7 +83,7 @@ slm_items = (

 if get_plugin_config("netbox_slm", "top_level_menu"):
    menu = PluginMenu(
-        label="Software Lifecycle",
+        label=_("Licences"),
        groups=((SLMConfig.verbose_name, slm_items),),
        icon_class="mdi mdi-content-save",
    )
@@ -1,5 +1,6 @@
 import django_tables2 as tables
 from django.db.models import Count, F, Value
+from django.utils.translation import gettext_lazy as _

 from netbox.tables import NetBoxTable, ToggleColumn, columns
 from netbox_slm.models import SoftwareProduct, SoftwareProductVersion, SoftwareProductInstallation, SoftwareLicense
@@ -45,7 +46,7 @@ class SoftwareProductVersionTable(NetBoxTable):

    pk = ToggleColumn()
    name = tables.LinkColumn()
-    software_product = tables.Column(accessor="software_product", verbose_name="Software Product", linkify=True)
+    software_product = tables.Column(accessor="software_product", verbose_name=_("Software Product"), linkify=True)
    manufacturer = tables.Column(accessor="software_product__manufacturer", linkify=True)
    installations = tables.Column(accessor="get_installation_count")

@@ -89,7 +90,7 @@ class SoftwareProductInstallationTable(NetBoxTable):
    platform = tables.Column(accessor="platform", linkify=True)
    type = tables.Column(accessor="render_type")
    manufacturer = tables.Column(accessor="software_product__manufacturer", linkify=True)
-    software_product = tables.Column(accessor="software_product", verbose_name="Software Product", linkify=True)
+    software_product = tables.Column(accessor="software_product", verbose_name=_("Software Product"), linkify=True)
    version = tables.Column(accessor="version", linkify=True)

    tags = columns.TagColumn(url_name="plugins:netbox_slm:softwareproductinstallation_list")
@@ -137,13 +138,16 @@ class SoftwareLicenseTable(NetBoxTable):
    name = tables.LinkColumn()

    type = tables.Column()
-    spdx_expression = tables.Column(verbose_name="SPDX expression")
+    spdx_expression = tables.Column(verbose_name=_("SPDX expression"))
    stored_location = tables.Column(accessor="stored_location_txt", linkify=lambda record: record.stored_location_url)

    manufacturer = tables.Column(accessor="software_product__manufacturer", linkify=True)
-    software_product = tables.Column(accessor="software_product", verbose_name="Software Product", linkify=True)
+    software_product = tables.Column(accessor="software_product", verbose_name=_("Software Product"), linkify=True)
    version = tables.Column(accessor="version", linkify=True)
    installation = tables.Column(accessor="installation", linkify=True)
+    tenant_group = tables.Column(accessor="tenant_group", verbose_name=_("Tenant Group"), linkify=True)
+    tenant = tables.Column(accessor="tenant", linkify=True)
+    provider_portal_url = tables.Column(verbose_name=_("Provider Portal"), linkify=True)

    tags = columns.TagColumn(url_name="plugins:netbox_slm:softwarelicense_list")

@@ -158,12 +162,20 @@ class SoftwareLicenseTable(NetBoxTable):
            "stored_location",
            "start_date",
            "expiration_date",
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
            "manufacturer",
            "software_product",
            "version",
            "installation",
+            "tenant_group",
+            "tenant",
            "support",
            "license_amount",
+            "provider_portal_url",
+            "expiration_notifications_enabled",
+            "email_notifications",
            "tags",
        )
        default_columns = (
@@ -173,7 +185,11 @@ class SoftwareLicenseTable(NetBoxTable):
            "manufacturer",
            "software_product",
            "installation",
+            "tenant_group",
+            "tenant",
            "expiration_date",
+            "lifetime",
+            "expiration_notifications_enabled",
            "tags",
        )

@@ -1,12 +1,13 @@
 {% load helpers %}
+{% load i18n %}

 <div class="card">
    <h2 class="card-header">
-        Installations
+        {% trans "Installations" %}
 {% if perms.netbox_slm.add_softwareproductinstallation %}
        <div class="card-actions">
            <a href="{% url 'plugins:netbox_slm:softwareproductinstallation_add' %}?{{ search_obj }}={{ object.pk }}" class="btn btn-ghost-primary btn-sm">
-                <span class="mdi mdi-plus-thick" aria-hidden="true"></span> Add an installation
+                <span class="mdi mdi-plus-thick" aria-hidden="true"></span> {% trans "Add an installation" %}
            </a>
        </div>
 {% endif %}
@@ -3,45 +3,54 @@
 {% load static %}
 {% load helpers %}
 {% load plugins %}
+{% load i18n %}

 {% block content %}
 <div class="row my-3">
 	<div class="col col-md-6">
        <div class="card">
            <h5 class="card-header">
-                Software License
+                {% trans "Software License" %}
            </h5>
            <table class="table table-hover attr-table">
                <tr>
-                    <th scope="row">Name</th>
+                    <th scope="row">{% trans "Name" %}</th>
                    <td>{{ object.name }}</td>
                </tr>
                <tr>
-                    <th scope="row">Description</th>
+                    <th scope="row">{% trans "Description" %}</th>
                    <td>{{ object.description }}</td>
                </tr>
                <tr>
-                    <th scope="row">Type</th>
+                    <th scope="row">{% trans "Type" %}</th>
                    <td>{{ object.type }}</td>
                </tr>
                <tr>
-                    <th scope="row">SPDX expression</th>
+                    <th scope="row">{% trans "SPDX expression" %}</th>
                    <td>{{ object.spdx_expression }}</td>
                </tr>
                <tr>
-                    <th scope="row">Software Product</th>
+                    <th scope="row">{% trans "Software Product" %}</th>
                    <td>{{ object.software_product|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Version</th>
+                    <th scope="row">{% trans "Version" %}</th>
                    <td>{{ object.version|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Installation</th>
+                    <th scope="row">{% trans "Installation" %}</th>
                    <td>{{ object.installation|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Stored location</th>
+                    <th scope="row">{% trans "Tenant Group" %}</th>
+                    <td>{{ object.tenant_group|linkify }}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Tenant" %}</th>
+                    <td>{{ object.tenant|linkify }}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Stored location" %}</th>
 {% if object.stored_location_url %}
                    <td><a href="{{ object.stored_location_url }}">{{ object.stored_location_txt }}</a></td>
 {% else %}
@@ -49,21 +58,97 @@
 {% endif %}
                </tr>
                <tr>
-                    <th scope="row">Start date</th>
+                    <th scope="row">{% trans "Start date" %}</th>
                    <td>{{ object.start_date }}</td>
                </tr>
                <tr>
-                    <th scope="row">Expiration date</th>
+                    <th scope="row">{% trans "Expiration date" %}</th>
                    <td>{{ object.expiration_date }}</td>
                </tr>
                <tr>
-                    <th scope="row">Support</th>
+                    <th scope="row">{% trans "Lifetime license" %}</th>
+                    <td>{% if object.lifetime %}{% trans "Yes" %}{% else %}{% trans "No" %}{% endif %}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Renewal interval" %}</th>
+                    <td>
+{% if object.renewal_interval %}
+                        {{ object.renewal_interval }} {{ object.get_renewal_interval_unit_display }}
+{% else %}
+                        {{ None|placeholder }}
+{% endif %}
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Support" %}</th>
                    <td>{{ object.support }}</td>
                </tr>
                <tr>
-                    <th scope="row">License amount</th>
+                    <th scope="row">{% trans "License amount" %}</th>
                    <td>{{ object.license_amount }}</td>
                </tr>
+                <tr>
+                    <th scope="row">{% trans "License file" %}</th>
+                    <td>
+{% if object.license_file %}
+                        <a href="{{ object.license_file.url }}">{% trans "Download license file" %}</a>
+{% else %}
+                        {{ None|placeholder }}
+{% endif %}
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "License key" %}</th>
+                    <td>{% if object.license_key %}<code>{{ object.license_key }}</code>{% else %}{{ None|placeholder }}{% endif %}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Provider Portal" %}</th>
+                    <td>
+{% if object.provider_portal_url %}
+                        <a href="{{ object.provider_portal_url }}">{{ object.provider_portal_url }}</a>
+{% else %}
+                        {{ None|placeholder }}
+{% endif %}
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Expiration notifications" %}</th>
+                    <td>{% if object.expiration_notifications_enabled %}{% trans "Yes" %}{% else %}{% trans "No" %}{% endif %}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Default notification intervals" %}</th>
+                    <td>
+{% if object.default_notification_intervals %}
+                        {% trans "One month and one week before expiration" %}
+{% else %}
+                        {% trans "Disabled" %}
+{% endif %}
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Custom notification interval" %}</th>
+                    <td>
+{% if object.custom_notification_interval %}
+                        {{ object.custom_notification_interval }} {{ object.get_custom_notification_interval_unit_display }}
+{% else %}
+                        {{ None|placeholder }}
+{% endif %}
+                    </td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Email notifications" %}</th>
+                    <td>{% if object.email_notifications %}{% trans "Enabled" %}{% else %}{% trans "Disabled" %}{% endif %}</td>
+                </tr>
+                <tr>
+                    <th scope="row">{% trans "Notification recipients" %}</th>
+                    <td>
+{% for subscription in object.subscriptions.all %}
+                        {{ subscription.user|linkify }}{% if not forloop.last %}, {% endif %}
+{% empty %}
+                        {% trans "No subscribers. Users can subscribe to this license using the Subscribe action." %}
+{% endfor %}
+                    </td>
+                </tr>
            </table>
        </div>
 {% include 'inc/panels/custom_fields.html' %}
@@ -3,60 +3,61 @@
 {% load static %}
 {% load helpers %}
 {% load plugins %}
+{% load i18n %}

 {% block content %}
 <div class="row my-3">
 	<div class="col col-md-6">
        <div class="card">
            <h5 class="card-header">
-                Software Product
+                {% trans "Software Product" %}
            </h5>
            <table class="table table-hover attr-table">
                <tr>
-                    <th scope="row">Name</th>
+                    <th scope="row">{% trans "Name" %}</th>
                    <td>{{ object.name }}</td>
                </tr>
                <tr>
-                    <th scope="row">Description</th>
+                    <th scope="row">{% trans "Description" %}</th>
                    <td>{{ object.description }}</td>
                </tr>
                <tr>
-                    <th scope="row">Manufacturer</th>
+                    <th scope="row">{% trans "Manufacturer" %}</th>
                    <td>{{ object.manufacturer|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Versions</th>
+                    <th scope="row">{% trans "Versions" %}</th>
                    <td>
 {% for version in object.softwareproductversion_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwareproductversion' pk=version.pk %}" class="btn btn-sm">
                            {{ version }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
                <tr>
-                    <th scope="row">Installations</th>
+                    <th scope="row">{% trans "Installations" %}</th>
                    <td>
 {% for installation in object.softwareproductinstallation_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwareproductinstallation' pk=installation.pk %}" class="btn btn-sm">
                            {{ installation }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
                <tr>
-                    <th scope="row">Licenses</th>
+                    <th scope="row">{% trans "Licenses" %}</th>
                    <td>
 {% for license in object.softwarelicense_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwarelicense' pk=license.pk %}" class="btn btn-sm">
                            {{ license }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
@@ -3,48 +3,49 @@
 {% load static %}
 {% load helpers %}
 {% load plugins %}
+{% load i18n %}

 {% block content %}
 <div class="row my-3">
 	<div class="col col-md-6">
        <div class="card">
            <h5 class="card-header">
-                Software Product Installation
+                {% trans "Software Product Installation" %}
            </h5>
            <table class="table table-hover attr-table">
 {% if object.device %}
                <tr>
-                    <th scope="row">Device</th>
+                    <th scope="row">{% trans "Device" %}</th>
                    <td>{{ object.device|linkify }}</td>
                </tr>
 {% elif object.virtualmachine %}
                <tr>
-                    <th scope="row">Virtual Machine</th>
+                    <th scope="row">{% trans "Virtual Machine" %}</th>
                    <td>{{ object.virtualmachine|linkify }}</td>
                </tr>
 {% else %}
                <tr>
-                    <th scope="row">Cluster</th>
+                    <th scope="row">{% trans "Cluster" %}</th>
                    <td>{{ object.cluster|linkify }}</td>
                </tr>
 {% endif %}
                <tr>
-                    <th scope="row">Software Product</th>
+                    <th scope="row">{% trans "Software Product" %}</th>
                    <td>{{ object.software_product|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Version</th>
+                    <th scope="row">{% trans "Version" %}</th>
                    <td>{{ object.version|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Licenses</th>
+                    <th scope="row">{% trans "Licenses" %}</th>
                    <td>
 {% for license in object.softwarelicense_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwarelicense' pk=license.pk %}" class="btn btn-sm">
                            {{ license }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
@@ -3,37 +3,38 @@
 {% load static %}
 {% load helpers %}
 {% load plugins %}
+{% load i18n %}

 {% block content %}
 <div class="row my-3">
 	<div class="col col-md-6">
        <div class="card">
            <h5 class="card-header">
-                Software Product Version
+                {% trans "Software Product Version" %}
            </h5>
            <table class="table table-hover attr-table">
                <tr>
-                    <th scope="row">Name</th>
+                    <th scope="row">{% trans "Name" %}</th>
                    <td>{{ object.name }}</td>
                </tr>
                <tr>
-                    <th scope="row">Description</th>
+                    <th scope="row">{% trans "Description" %}</th>
                    <td>{{ object.description }}</td>
                </tr>
                <tr>
-                    <th scope="row">Manufacturer</th>
+                    <th scope="row">{% trans "Manufacturer" %}</th>
                    <td>{{ object.software_product.manufacturer|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Software Product</th>
+                    <th scope="row">{% trans "Software Product" %}</th>
                    <td>{{ object.software_product|linkify }}</td>
                </tr>
                <tr>
-                    <th scope="row">Release date</th>
+                    <th scope="row">{% trans "Release date" %}</th>
                    <td>{{ object.release_date }}</td>
                </tr>
                <tr>
-                    <th scope="row">Documentation url</th>
+                    <th scope="row">{% trans "Documentation URL" %}</th>
 {% if object.documentation_url %}
                    <td><a href="{{ object.documentation_url }}">{{ object.documentation_url }}</a></td>
 {% else %}
@@ -41,11 +42,11 @@
 {% endif %}
                </tr>
                <tr>
-                    <th scope="row">End of support</th>
+                    <th scope="row">{% trans "End of support" %}</th>
                    <td>{{ object.end_of_support }}</td>
                </tr>
                <tr>
-                    <th scope="row">Filename</th>
+                    <th scope="row">{% trans "Filename" %}</th>
 {% if object.file_link %}
                    <td><a href="{{ object.file_link }}">{{ object.filename }}</a></td>
 {% else %}
@@ -53,34 +54,34 @@
 {% endif %}
                </tr>
                <tr>
-                    <th scope="row">File checksum</th>
+                    <th scope="row">{% trans "File checksum" %}</th>
                    <td>{{ object.file_checksum }}</td>
                </tr>
                <tr>
-                    <th scope="row">Release type</th>
+                    <th scope="row">{% trans "Release type" %}</th>
                    <td>{{ object.get_release_type_display }}</td>
                </tr>
                <tr>
-                    <th scope="row">Installations</th>
+                    <th scope="row">{% trans "Installations" %}</th>
                    <td>
 {% for installation in object.softwareproductinstallation_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwareproductinstallation' pk=installation.pk %}" class="btn btn-sm">
                            {{ installation }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
                <tr>
-                    <th scope="row">Licenses</th>
+                    <th scope="row">{% trans "Licenses" %}</th>
                    <td>
 {% for license in object.softwarelicense_set.all %}
                        <a href="{% url 'plugins:netbox_slm:softwarelicense' pk=license.pk %}" class="btn btn-sm">
                            {{ license }}
                        </a>
 {% empty %}
-                        None
+                        {% trans "None" %}
 {% endfor %}
                    </td>
                </tr>
@@ -2,6 +2,7 @@ from django.test import TestCase

 from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site
 from netbox_slm.models import SoftwareProduct, SoftwareProductVersion, SoftwareProductInstallation, SoftwareLicense
+from tenancy.models import Tenant, TenantGroup
 from virtualization.models import Cluster, ClusterType, VirtualMachine


@@ -26,6 +27,8 @@ class SlmBaseTestCase(TestCase):
        cls.vm = VirtualMachine.objects.create(name="test VM")
        cluster_type = ClusterType.objects.create(name="test cluster type")
        cls.cluster = Cluster.objects.create(name="test cluster", type=cluster_type)
+        cls.tenant_group = TenantGroup.objects.create(name="test tenant group", slug="test-tenant-group")
+        cls.tenant = Tenant.objects.create(name="test tenant", slug="test-tenant", group=cls.tenant_group)

        cls.software_product = SoftwareProduct.objects.create(name=cls.p_name)
        cls.software_product_version = SoftwareProductVersion.objects.create(
@@ -40,6 +43,8 @@ class SlmBaseTestCase(TestCase):
            version=cls.software_product_version,
            installation=cls.software_product_installation,
            stored_location_url=cls.test_url,
+            tenant_group=cls.tenant_group,
+            tenant=cls.tenant,
        )

    @classmethod
@@ -48,6 +53,8 @@ class SlmBaseTestCase(TestCase):
        SoftwareProductInstallation.objects.all().delete()
        SoftwareProductVersion.objects.all().delete()
        SoftwareProduct.objects.all().delete()
+        Tenant.objects.all().delete()
+        TenantGroup.objects.all().delete()
        Cluster.objects.all().delete()
        ClusterType.objects.all().delete()
        VirtualMachine.objects.all().delete()
@@ -1,3 +1,24 @@
+from datetime import date, timedelta
+from unittest.mock import Mock, patch
+
+from django.contrib.auth import get_user_model
+from django.contrib.contenttypes.models import ContentType
+from django.core.exceptions import ValidationError
+from django.test import override_settings
+from django.utils import timezone
+from django.utils.translation import gettext, override
+from extras.models import Notification, Subscription
+
+from netbox_slm.forms import SoftwareLicenseForm, SoftwareProductInstallationForm
+from netbox_slm.jobs import LicenseExpirationNotificationJob
+from netbox_slm.models import (
+    NotificationIntervalUnits,
+    RenewalIntervalUnits,
+    SoftwareLicense,
+    SoftwareLicenseNotificationLog,
+)
+from tenancy.models import Tenant, TenantGroup
+
 from .base import SlmBaseTestCase


@@ -50,9 +71,140 @@ class ModelTestCase(SlmBaseTestCase):
        self.assertEqual("cluster", self.software_product_installation.render_type())
        self.assertEqual(self.cluster, self.software_product_installation.platform)

+    def test_installation_form_requires_exactly_one_platform_destination(self):
+        base_data = {
+            "software_product": self.software_product.pk,
+            "version": self.software_product_version.pk,
+        }
+
+        no_destination_form = SoftwareProductInstallationForm(data=base_data)
+        self.assertFalse(no_destination_form.is_valid())
+        self.assertIn("Select exactly one platform destination", str(no_destination_form.non_field_errors()))
+
+        one_destination_form = SoftwareProductInstallationForm(data={**base_data, "device": self.device.pk})
+        self.assertTrue(one_destination_form.is_valid(), one_destination_form.errors)
+
+        multiple_destinations_form = SoftwareProductInstallationForm(
+            data={**base_data, "device": self.device.pk, "cluster": self.cluster.pk}
+        )
+        self.assertFalse(multiple_destinations_form.is_valid())
+        self.assertIn("Select exactly one platform destination", str(multiple_destinations_form.non_field_errors()))
+
    def test_software_license_stored_location_txt(self):
        self.assertEqual("Link", self.software_license.stored_location_txt)

        self.software_license.stored_location = "GitHub"
        self.software_license.save()
        self.assertEqual("GitHub", self.software_license.stored_location_txt)
+
+    def test_software_license_tenancy(self):
+        self.assertEqual(self.tenant_group, self.software_license.tenant_group)
+        self.assertEqual(self.tenant, self.software_license.tenant)
+
+    def test_software_license_form_renders_tenancy_fields(self):
+        form = SoftwareLicenseForm(instance=self.software_license)
+        self.assertIn("tenant_group", form.fields)
+        self.assertIn("tenant", form.fields)
+        self.assertTrue(
+            any("tenant_group" in fieldset.items and "tenant" in fieldset.items for fieldset in form.fieldsets)
+        )
+
+    def test_software_license_form_contains_renewal_and_credentials(self):
+        form = SoftwareLicenseForm(instance=self.software_license)
+        for field_name in (
+            "lifetime",
+            "renewal_interval",
+            "renewal_interval_unit",
+            "license_file",
+            "license_key",
+            "provider_portal_url",
+        ):
+            self.assertIn(field_name, form.fields)
+
+    def test_software_license_accepts_optional_type_and_renewal_interval(self):
+        license = SoftwareLicense(
+            name="renewable license",
+            software_product=self.software_product,
+            renewal_interval=12,
+            renewal_interval_unit=RenewalIntervalUnits.MONTHS,
+        )
+        license.full_clean()
+
+    def test_software_license_requires_renewal_interval_and_unit_together(self):
+        license = SoftwareLicense(
+            name="invalid renewable license",
+            software_product=self.software_product,
+            renewal_interval=12,
+        )
+        with self.assertRaisesMessage(ValidationError, "must be specified together"):
+            license.full_clean()
+
+    def test_lifetime_license_rejects_expiration(self):
+        license = SoftwareLicense(
+            name="invalid lifetime license",
+            software_product=self.software_product,
+            lifetime=True,
+            expiration_date="2030-01-01",
+        )
+        with self.assertRaisesMessage(ValidationError, "cannot have a renewal interval or expiration date"):
+            license.full_clean()
+
+    def test_license_notification_dates(self):
+        license = SoftwareLicense(
+            name="expiring license",
+            software_product=self.software_product,
+            expiration_date=date(2027, 3, 31),
+            custom_notification_interval=6,
+            custom_notification_interval_unit=NotificationIntervalUnits.MONTHS,
+        )
+        self.assertEqual(
+            [date(2026, 9, 30), date(2027, 2, 28), date(2027, 3, 24)],
+            license.get_notification_dates(),
+        )
+
+    @override_settings(SERVER_EMAIL="netbox@example.com", EMAIL_HOST_USER="smtp-user")
+    @patch("netbox_slm.jobs.send_mail")
+    def test_expiration_job_notifies_subscribers_on_every_run(self, send_mail):
+        user = get_user_model().objects.create_user(
+            username="license-recipient",
+            email="recipient@example.com",
+        )
+        license = SoftwareLicense.objects.create(
+            name="expiring subscribed license",
+            software_product=self.software_product,
+            expiration_date=timezone.localdate() + timedelta(days=1),
+            default_notification_intervals=False,
+            custom_notification_interval=1,
+            custom_notification_interval_unit=NotificationIntervalUnits.DAYS,
+            email_notifications=True,
+        )
+        Subscription.objects.create(
+            user=user,
+            object_type=ContentType.objects.get_for_model(license),
+            object_id=license.pk,
+        )
+        runner = LicenseExpirationNotificationJob.__new__(LicenseExpirationNotificationJob)
+        runner.logger = Mock()
+
+        runner.run()
+        runner.run()
+
+        notification = Notification.objects.get(user=user, object_id=license.pk)
+        self.assertIsInstance(str(notification.event), str)
+        self.assertEqual(1, SoftwareLicenseNotificationLog.objects.filter(user=user, license=license).count())
+        self.assertEqual(2, send_mail.call_count)
+        self.assertEqual("netbox@example.com", send_mail.call_args.args[2])
+
+    def test_german_translation(self):
+        with override("de"):
+            self.assertEqual("Softwarelizenz", gettext("Software License"))
+            self.assertEqual("Mandantengruppe", gettext("Tenant Group"))
+            self.assertEqual("Lizenzen", gettext("Licenses"))
+
+    def test_software_license_rejects_tenant_from_other_group(self):
+        other_group = TenantGroup.objects.create(name="other group", slug="other-group")
+        other_tenant = Tenant.objects.create(name="other tenant", slug="other-tenant", group=other_group)
+        self.software_license.tenant = other_tenant
+
+        with self.assertRaisesMessage(ValidationError, "does not belong to the selected tenant group"):
+            self.software_license.full_clean()
@@ -1,9 +1,34 @@
 from netbox.views import generic
+from django.utils.translation import gettext_lazy as _
 from netbox_slm import filtersets, forms, tables
 from netbox_slm.models import SoftwareLicense
 from utilities.views import register_model_view


+class EmailNotificationPermissionMixin:
+    """Prevent users without the dedicated permission from changing SMTP delivery."""
+
+    email_permission = "netbox_slm.manage_softwarelicense_email_notifications"
+
+    def dispatch(self, request, *args, **kwargs):
+        form_attribute = "model_form" if hasattr(self, "model_form") else "form"
+        base_form = getattr(self, form_attribute)
+        can_manage_email = request.user.has_perm(self.email_permission)
+
+        class PermissionAwareForm(base_form):
+            def __init__(self, *form_args, **form_kwargs):
+                super().__init__(*form_args, **form_kwargs)
+                if not can_manage_email and "email_notifications" in self.fields:
+                    field = self.fields["email_notifications"]
+                    field.disabled = True
+                    field.help_text = _(
+                        "Only administrators or explicitly authorized users can change this setting."
+                    )
+
+        setattr(self, form_attribute, PermissionAwareForm)
+        return super().dispatch(request, *args, **kwargs)
+
+
@register_model_view(SoftwareLicense, "list", path="", detail=False)
 class SoftwareLicenseListView(generic.ObjectListView):
    queryset = SoftwareLicense.objects.all()
@@ -19,7 +44,7 @@ class SoftwareLicenseView(generic.ObjectView):

@register_model_view(SoftwareLicense, "add", detail=False)
@register_model_view(SoftwareLicense, "edit")
-class SoftwareLicenseEditView(generic.ObjectEditView):
+class SoftwareLicenseEditView(EmailNotificationPermissionMixin, generic.ObjectEditView):
    queryset = SoftwareLicense.objects.all()
    form = forms.SoftwareLicenseForm

@@ -30,13 +55,13 @@ class SoftwareLicenseDeleteView(generic.ObjectDeleteView):


@register_model_view(SoftwareLicense, "bulk_import", detail=False)
-class SoftwareLicenseBulkImportView(generic.BulkImportView):
+class SoftwareLicenseBulkImportView(EmailNotificationPermissionMixin, generic.BulkImportView):
    queryset = SoftwareLicense.objects.all()
    model_form = forms.SoftwareLicenseBulkImportForm


@register_model_view(SoftwareLicense, "bulk_edit", path="edit", detail=False)
-class SoftwareLicenseBulkEditView(generic.BulkEditView):
+class SoftwareLicenseBulkEditView(EmailNotificationPermissionMixin, generic.BulkEditView):
    queryset = SoftwareLicense.objects.all()
    filterset = filtersets.SoftwareLicenseFilterSet
    table = tables.SoftwareLicenseTable
@@ -26,23 +26,24 @@ classifiers = [
    "Programming Language :: Python :: 3.11",
    "Programming Language :: Python :: 3.12",
    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
    "Programming Language :: Python",
    "Topic :: Internet :: WWW/HTTP",
    "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
 ]
 dependencies = [
-    "license-expression == 30.4.1",
+    "license-expression == 30.4.4",
 ]

 [project.optional-dependencies]
 build = [
-    "build ==  1.2.2.post1",
-    "setuptools == 75.8.0",
-    "twine == 6.1.0",
+    "build == 1.5.0",
+    "setuptools == 82.0.1",
+    "twine == 6.2.0",
 ]
 ci = [
-    "coverage == 7.6.11",
-    "ruff == 0.9.6",
+    "coverage == 7.14.3",
+    "ruff == 0.15.19",
 ]

 [project.urls]
@@ -2,11 +2,13 @@
 sonar.organization=ictu
 sonar.projectKey=ICTU_netbox_slm
 sonar.projectName=netbox-slm
-sonar.projectVersion=1.8.2
+sonar.projectVersion=1.9.0

 # Path is relative to the sonar-project.properties file
 sonar.sources=netbox_slm
-sonar.python.version=3.11, 3.12, 3.13
+sonar.exclusions=netbox_slm/tests/**
+sonar.tests=netbox_slm/tests
+sonar.python.version=3.11, 3.12, 3.13, 3.14

 # Python test reports
 sonar.python.coverage.reportPaths=/ci/reports/coverage.xml
@@ -1,17 +0,0 @@
-git clone -b release https://github.com/netbox-community/netbox-docker.git
-cd netbox-docker
-tee docker-compose.override.yml <<EOF
-version: '3.7'
-services:
-  netbox:
-    ports:
-      - 8000:8080
-  postgres:
-    ports:
-      - 5432:5432
-  redis:
-    ports:
-      - 6379:6379
-EOF
-docker-compose pull
-docker-compose up
Author	SHA1	Message	Date
MrBlake	32d62f26b2	feat: repeat license expiration reminders daily	2026-07-29 12:44:22 +02:00
MrBlake	35ddffc903	fix: render expiration notifications in bell menu	2026-07-29 12:38:36 +02:00
MrBlake	919b2d01e5	fix: use NetBox SMTP sender address	2026-07-29 12:26:57 +02:00
MrBlake	157c891cde	fix: restore license expiration email delivery	2026-07-29 11:28:55 +02:00
MrBlake	3599dc703e	fix: restrict license email notification settings	2026-07-29 11:04:46 +02:00
MrBlake	294e20b891	feat: add license expiration notifications	2026-07-29 11:01:00 +02:00
MrBlake	9f3bddfbb1	fix: handle NetBox form clean return value Read installation destinations from self.cleaned_data because NetBox 4.6.5 form mixins return None while cleaning newly created objects.	2026-07-27 12:31:26 +02:00
MrBlake	71a5db0ece	fix: clarify installation platform selection Group device, virtual machine, and cluster as the required platform destination and validate that exactly one is selected with an actionable localized error.	2026-07-27 12:28:26 +02:00
MrBlake	adfc2ae72c	feat: extend software license lifecycle data Make license type optional and add lifetime or recurring renewal terms, license file and key storage, and provider portal URLs across the UI, API, filters, imports, translations, and migrations.	2026-07-27 12:16:14 +02:00
MrBlake	5887129546	feat: add German localization Internationalize plugin navigation, forms, tables, model labels, detail templates, choices, and validation messages. Ship a compiled German Django message catalog and bump the plugin version to 1.10.0.	2026-07-24 15:41:35 +02:00
MrBlake	7ca670c717	fix: render tenancy fields in license form Define an explicit tenancy fieldset and bump the package version to 1.9.1 so Git/Pip upgrades replace older installations.	2026-07-24 15:34:01 +02:00
MrBlake	e1c817229b	feat: aufräumaktion	2026-07-24 15:22:59 +02:00
MrBlake	01d40ddecc	feat: add tenancy support for software licenses Add tenant group and tenant assignments across the model, forms, filters, API, tables, imports, and tests. Replace the Docker-based setup with Git/Pip installation documentation for NetBox 4.6.5.	2026-07-24 15:22:08 +02:00
wkoot	8a2dabc382	Update README.md	2026-06-25 18:18:33 +02:00
wkootandArtem Kotik	f84a6bde2a	Version bump to NetBox v4.6.3 (#82 ) * Add support for NetBox 4.6 * Test NetBox v4.6.3 and Python 3.14 Signed-off-by: wkoot <3715211+wkoot@users.noreply.github.com> Co-authored-by: Artem Kotik <artem.i.kotik@ringcentral.com>	2026-06-25 18:06:27 +02:00
wkoot	811490e429	Add zizmor scan action (#79 )	2026-06-19 14:12:46 +02:00
wkootandmikedekker	7ce718ff9d	Fix filters with default order by ID (#78 ) Closes #75 Signed-off-by: wkoot <3715211+wkoot@users.noreply.github.com> Co-authored-by: mikedekker <mike@dekker.me>	2025-12-18 13:30:38 +01:00
dependabot[bot]anddependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	9e87afcde7	Bump SonarSource/sonarqube-scan-action from 5 to 6 in /.github/workflows (#74 ) Bumps [SonarSource/sonarqube-scan-action](https://github.com/sonarsource/sonarqube-scan-action) from 5 to 6. - [Release notes](https://github.com/sonarsource/sonarqube-scan-action/releases) - [Commits](https://github.com/sonarsource/sonarqube-scan-action/compare/v5...v6) --- updated-dependencies: - dependency-name: SonarSource/sonarqube-scan-action dependency-version: '6' dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2025-09-26 23:17:19 +02:00
wkoot	e03195c9b1	Bump sonarqube-scan-action to v5 (#73 )	2025-09-02 09:49:18 +02:00
wkoot	59730a5184	Update CI spellchecker (#72 )	2025-06-04 11:31:05 +02:00
				`@@ -0,0 +1 @@`
				`LICENSE_EXPIRING = "netbox_slm_license_expiring"`