diff --git a/aleksis/core/__init__.py b/aleksis/core/__init__.py
index 21a49f0785f3977d9a265059a32ec957c9e1eb3c..587b829c611913af41c69f2734a48235956ff787 100644
--- a/aleksis/core/__init__.py
+++ b/aleksis/core/__init__.py
@@ -1,5 +1,7 @@
import pkg_resources
+from django.utils.translation import gettext_lazy as _
+
try:
from .celery import app as celery_app
except ModuleNotFoundError:
diff --git a/aleksis/core/apps.py b/aleksis/core/apps.py
index 13e3b3ddcf1083e1cff0f8c5e3461103bb12f4b2..3139249b79c2afb701ec9405eea5a6cec1a4526b 100644
--- a/aleksis/core/apps.py
+++ b/aleksis/core/apps.py
@@ -13,6 +13,20 @@ class CoreConfig(AppConfig):
name = "aleksis.core"
verbose_name = "AlekSIS — The Free School Information System"
+ urls = {
+ "Repository": "https://edugit.org/AlekSIS/official/AlekSIS/",
+ }
+ licence = "EUPL-1.2+"
+ copyright = (
+ ([2017, 2018, 2019, 2020], "Jonathan Weth", "wethjo@katharineum.de"),
+ ([2017, 2018, 2019], "Frank Poetzsch-Heffter", "p-h@katharineum.de"),
+ ([2018, 2019, 2020], "Hangzhi Yu", "yuha@katharineum.de"),
+ ([2018, 2019, 2020], "Julian Leucker", "leuckeju@katharineum.de"),
+ ([2019, 2020], "Dominik George", "dominik.george@teckids.org"),
+ ([2019, 2020], "mirabilos", "thorsten.glaser@teckids.org"),
+ ([2019, 2020], "Tom Teichler", "tom.teichler@teckids.org"),
+ )
+
def config_updated(self, *args, **kwargs) -> None:
clean_scss()
diff --git a/aleksis/core/settings.py b/aleksis/core/settings.py
index eb4b3e07401fae2a830c530212747877ced2af93..81c00f57599429b58494b7e38fb5a6f5651fdbb1 100644
--- a/aleksis/core/settings.py
+++ b/aleksis/core/settings.py
@@ -1,7 +1,9 @@
import os
import sys
from glob import glob
+from importlib import import_module
+from django.apps import apps
from django.utils.translation import gettext_lazy as _
from calendarweek.django import i18n_day_name_choices_lazy
diff --git a/aleksis/core/templates/core/about.html b/aleksis/core/templates/core/about.html
new file mode 100644
index 0000000000000000000000000000000000000000..5b9097f8e294b099151d90dc91fbb583bd9e6dc9
--- /dev/null
+++ b/aleksis/core/templates/core/about.html
@@ -0,0 +1,122 @@
+{# -*- engine:django -*- #}
+{% extends "core/base.html" %}
+{% load i18n %}
+
+
+{% block browser_title %}{% blocktrans %}About AlekSIS{% endblocktrans %}{% endblock %}
+{% block page_title %}{% blocktrans %}AlekSIS – The Free School Information System{% endblocktrans %}{% endblock %}
+
+{% block content %}
+
+ <div class="row">
+ <div class="col s12">
+ <div class="card">
+ <div class="card-content">
+ <span class="card-title">{% blocktrans %}About AlekSIS{% endblocktrans %}</span>
+ <p>
+ {% blocktrans %}
+ This platform is powered by AlekSIS, a web-based school information system (SIS) which can be used
+ to manage and/or publish organisational subjects of educational institutions. AlekSIS is free software and
+ can be used by everyone.
+ {% endblocktrans %}
+ </p>
+ </div>
+ <div class="card-action">
+ <a class="" href="https://aleksis.org/">{% trans "Website of AlekSIS" %}</a>
+ <a class="" href="https://edugit.org/AlekSIS/">{% trans "Source code" %}</a>
+ </div>
+ </div>
+ </div>
+ </div>
+ <div class="row">
+ <div class="col s12">
+ <div class="card">
+ <div class="card-content">
+ <span class="card-title">{% trans "Licence information" %}</span>
+ <p>
+ {% blocktrans %}
+ The core and the official apps of AlekSIS are licenced under the EUPL, version 1.2 or later. For licence
+ information from third-party apps, if installed, see directly at the respective components below. The
+ licences are marked like this:
+ {% endblocktrans %}
+ </p>
+ <br/>
+ <p>
+ <span class="chip green white-text">{% trans "Free/Open Source Licence" %}</span>
+ <span class="chip orange white-text">{% trans "Other Licence" %}</span>
+ </p>
+ </div>
+ <div class="card-action">
+ <a href="https://eupl.eu">{% trans "Full licence text" %}</a>
+ <a href="https://joinup.ec.europa.eu/collection/eupl/guidelines-users-and-developers">{% trans "More information about the EUPL" %}</a>
+ </div>
+ </div>
+ </div>
+ </div>
+
+ <div class="row">
+ {% for app_config in app_configs %}
+ <div class="col s12 m12 l6">
+ <div class="card " id="{{ app_config.name }}">
+ <div class="card-content">
+ {% if app_config.get_licence.1.isFsfLibre %}
+ <span class="chip green white-text right">Free Software</span>
+ {% elif app_config.get_licence.1.isOsiApproved %}
+ <span class="chip green white-text right">Open Source</span>
+ {% endif %}
+
+ <span class="card-title">{{ app_config.get_name }} <small>{{ app_config.get_version }}</small></span>
+
+ {% if app_config.get_copyright %}
+ <p>
+ {% for holder in app_config.get_copyright %}
+ Copyright © {{ holder.0 }}
+
+ {% if holder.2 %}
+ <a href="mailto:{{ holder.2 }}">{{ holder.1 }}</a>
+ {% else %}
+ {{ holder.1 }}
+ {% endif %}
+
+ <br/>
+ {% endfor %}
+ </p>
+ <br/>
+ {% endif %}
+
+ {% if app_config.get_licence %}
+ {% with licence=app_config.get_licence %}
+ <p>
+ {% blocktrans with licence=licence.0 %}
+ This app is licenced under {{ licence }}.
+ {% endblocktrans %}
+ </p>
+ <br/>
+ <p>
+ {% for l in licence.2 %}
+ <a class="chip white-text {% if l.isOsiApproved or l.isFsfLibre %}green{% else %}orange{% endif %}"
+ href="{{ l.url }}">
+ {{ l.name }}
+ </a>
+ {% endfor %}
+ </p>
+ {% endwith %}
+ {% endif %}
+ </div>
+ {% if app_config.get_urls %}
+ <div class="card-action">
+ {% for url_name, url in app_config.get_urls.items %}
+ <a href="{{ url }}">{{ url_name }}</a>
+ {% endfor %}
+ </div>
+ {% endif %}
+ </div>
+ </div>
+ {% if forloop.counter|divisibleby:2 %}
+ </div>
+ <div class="row">
+ {% endif %}
+ {% endfor %}
+ </div>
+
+{% endblock %}
diff --git a/aleksis/core/templates/core/base.html b/aleksis/core/templates/core/base.html
index 8ac5ed74a195be76a558ae30e780d493ae6c2ecf..fe536557737d05a04c93d9bfbedfcc63f1bbe60b 100644
--- a/aleksis/core/templates/core/base.html
+++ b/aleksis/core/templates/core/base.html
@@ -146,8 +146,8 @@
<div class="footer-copyright">
<div class="container">
<div class="left">
- <a class="blue-text text-lighten-4" href="https://aleksis.org/">
- AlekSIS — The Free School Information System
+ <a class="blue-text text-lighten-4" href="{% url "about_aleksis" %}">
+ {% trans "About AlekSIS — The Free School Information System" %}
</a>
© The AlekSIS Team
</div>
diff --git a/aleksis/core/urls.py b/aleksis/core/urls.py
index 4bb7d10fbbaa6774d5f5beed3a1d7e034f020260..5de76472c91da9243edfa13c57c5ce29a7782e08 100644
--- a/aleksis/core/urls.py
+++ b/aleksis/core/urls.py
@@ -16,6 +16,7 @@ from . import views
urlpatterns = [
path("", include("pwa.urls"), name="pwa"),
path("offline/", views.offline, name="offline"),
+ path("about/", views.about, name="about_aleksis"),
path("admin/", admin.site.urls),
path("data_management/", views.data_management, name="data_management"),
path("status/", views.system_status, name="system_status"),
diff --git a/aleksis/core/util/apps.py b/aleksis/core/util/apps.py
index 7eef538ae05265d3492bda331eaf75875229a4ae..dbf6159252c0b20aee9fcc422fb21360c7fbc1e0 100644
--- a/aleksis/core/util/apps.py
+++ b/aleksis/core/util/apps.py
@@ -1,5 +1,5 @@
from importlib import import_module
-from typing import Any, List, Optional, Tuple
+from typing import Any, List, Optional, Tuple, Sequence
import django.apps
from django.contrib.auth.signals import user_logged_in, user_logged_out
@@ -7,6 +7,10 @@ from django.db.models.signals import post_migrate, pre_migrate
from django.http import HttpRequest
from constance.signals import config_updated
+from license_expression import Licensing, LicenseSymbol
+from spdx_license_list import LICENSES
+
+from .core_helpers import copyright_years
class AppConfig(django.apps.AppConfig):
@@ -41,6 +45,87 @@ class AppConfig(django.apps.AppConfig):
# ImportErrors are non-fatal because checks are optional.
pass
+ @classmethod
+ def get_name(cls):
+ return getattr(cls, "verbose_name", cls.name)
+ # TODO Try getting from distribution if not set
+
+ @classmethod
+ def get_version(cls):
+ try:
+ from .. import __version__ # noqa
+ except ImportError:
+ __version__ = None
+
+ return getattr(cls, "version", __version__)
+
+ @classmethod
+ def get_licence(cls) -> Tuple:
+ licence = getattr(cls, "licence", None)
+
+ default_dict = {
+ 'isDeprecatedLicenseId': False,
+ 'isFsfLibre': False,
+ 'isOsiApproved': False,
+ 'licenseId': 'unknown',
+ 'name': 'Unknown Licence',
+ 'referenceNumber': -1,
+ 'url': '',
+ }
+
+ if licence:
+ licensing = Licensing(LICENSES.keys())
+ parsed = licensing.parse(licence).simplify()
+ readable = parsed.render_as_readable()
+
+ flags = {
+ "isFsfLibre": True,
+ "isOsiApproved": True,
+ }
+
+ licence_dicts = []
+
+ for symbol in parsed.symbols:
+ licence_dict = LICENSES.get(symbol.key.rstrip("+"), None)
+
+ if licence_dict is None:
+ licence_dict = default_dict
+ else:
+ licence_dict["url"] = "https://spdx.org/licenses/{}.html".format(licence_dict["licenseId"])
+
+ flags["isFsfLibre"] = flags["isFsfLibre"] and licence_dict["isFsfLibre"]
+ flags["isOsiApproved"] = flags["isOsiApproved"] and licence_dict["isOsiApproved"]
+
+ licence_dicts.append(licence_dict)
+
+ return (readable, flags, licence_dicts)
+ else:
+ return ("Unknown", [default_dict])
+
+ @classmethod
+ def get_urls(cls):
+ return getattr(cls, "urls", {})
+ # TODO Try getting from distribution if not set
+
+ @classmethod
+ def get_copyright(cls) -> Sequence[Tuple[str, str, str]]:
+ copyrights = getattr(cls, "copyright", tuple())
+
+ copyrights_processed = []
+
+ for copyright in copyrights:
+ copyrights_processed.append(
+ (
+ copyright[0] if isinstance(copyright[0], str) else copyright_years(copyright[0]),
+ copyright[1],
+ copyright[2],
+ )
+ )
+
+ return copyrights_processed
+
+ # TODO Try getting from distribution if not set
+
def config_updated(
self,
key: Optional[str] = "",
diff --git a/aleksis/core/util/core_helpers.py b/aleksis/core/util/core_helpers.py
index 9f91154c30913ae14eff1332b5f6bea3207bfa86..13558233068626c8f288b70624b2646840826819 100644
--- a/aleksis/core/util/core_helpers.py
+++ b/aleksis/core/util/core_helpers.py
@@ -1,8 +1,10 @@
from datetime import datetime, timedelta
+from itertools import groupby
+from operator import itemgetter
import os
import pkgutil
from importlib import import_module
-from typing import Any, Callable, Sequence, Union
+from typing import Any, Callable, Sequence, Union, List
from uuid import uuid4
from django.conf import settings
@@ -12,6 +14,18 @@ from django.utils import timezone
from django.utils.functional import lazy
+def copyright_years(years: Sequence[int], seperator: str = ", ", joiner: str = "–") -> str:
+ """ Takes a sequence of integegers and produces a string with ranges
+
+ >>> copyright_years([1999, 2000, 2001, 2005, 2007, 2008, 2009])
+ '1999–2001, 2005, 2007–2009'
+ """
+
+ ranges = [list(map(itemgetter(1), group)) for _, group in groupby(enumerate(years), lambda e: e[1]-e[0])]
+ years_strs = [str(range_[0]) if len(range_) == 1 else joiner.join([str(range_[0]), str(range_[-1])]) for range_ in ranges]
+
+ return seperator.join(years_strs)
+
def dt_show_toolbar(request: HttpRequest) -> bool:
from debug_toolbar.middleware import show_toolbar # noqa
diff --git a/aleksis/core/views.py b/aleksis/core/views.py
index d3ead324d90b313ffeec3a5068df24c90bc379f4..51a89e5552158188973b2c244cfdce63b8604b02 100644
--- a/aleksis/core/views.py
+++ b/aleksis/core/views.py
@@ -1,5 +1,7 @@
+from importlib import import_module
from typing import Optional
+from django.apps import apps
from django.contrib.auth.decorators import login_required
from django.core.exceptions import PermissionDenied
from django.http import Http404, HttpRequest, HttpResponse
@@ -22,6 +24,7 @@ from .forms import (
from .models import Activity, Group, Notification, Person, School, DashboardWidget, Announcement
from .tables import GroupsTable, PersonsTable
from .util import messages
+from .util.apps import AppConfig
@person_required
@@ -52,6 +55,14 @@ def offline(request):
return render(request, "core/offline.html")
+def about(request):
+ context = {}
+
+ context["app_configs"] = list(filter(lambda a: isinstance(a, AppConfig), apps.get_app_configs()))
+
+ return render(request, "core/about.html", context)
+
+
@login_required
def persons(request: HttpRequest) -> HttpResponse:
context = {}
diff --git a/pyproject.toml b/pyproject.toml
index 02448d52ad00c58009c4ba7cb4244f2a3c7da808..dcc6ed027e169c417be226917d2f77955b461999 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -71,6 +71,8 @@ django-memoize = "^2.2.1"
django-haystack = "^3.0"
celery-haystack = {version="^0.3.1", optional=true}
django-dbbackup = "^3.3.0"
+spdx-license-list = "^0.4.0"
+license-expression = "^1.2"
[tool.poetry.extras]
ldap = ["django-auth-ldap"]