Add about page with general, copyright and licence information

Close #108

aleksis/core/settings.py

@@ -478,3 +478,22 @@ CKEDITOR_CONFIGS = {
         ]),
     }
 }
+
+LICENCE_INFORMATION = {
+    "core": {
+        "name": _("Core"),
+        "repository": "https://edugit.org/AlekSIS/AlekSIS/",
+        "licence": _("EUPL, version 1.2 or later"),
+        "copyright_holders": [
+            ([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"),
+        ]
+    }
+}
+
+merge_app_settings("LICENCE_INFORMATION", LICENCE_INFORMATION, False)

aleksis/core/templates/core/about.html

+{# -*- 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="card">
+    <div class="card-content">
+      <span class="card-title">{% blocktrans %}About AlekSIS{% endblocktrans %}</span>
+      <p>
+        {% blocktrans %}
+          AlekSIS is a web-based school information system (SIS) which can be used to manage and/or publish
+          organisational subjects of educational institutions.
+        {% endblocktrans %}
+      </p>
+    </div>
+    <div class="card-action">
+      <a class="" href="https://aleksis.org/">{% trans "Website of AlekSIS" %}</a>
+    </div>
+  </div>
+
+  <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.
+        {% endblocktrans %}
+      </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>
+
+  {% for short_name, app in licence_information.items %}
+    <div class="card">
+      <div class="card-content">
+        <span class="card-title">{{ app.name }}</span>
+
+        {% if app.copyright_holders %}
+          <p>
+            {% for holder in app.copyright_holders %}
+              Copyright © {{ holder.0|join:", " }}
+
+              {% if holder.2 %}
+                <a href="mailto:{{ holder.2 }}">{{ holder.1 }}</a>
+              {% else %}
+                {{ holder.1 }}
+              {% endif %}
+
+              <br/>
+            {% endfor %}
+          </p>
+          <br/>
+        {% endif %}
+
+        {% if app.licence %}
+          <p>
+            {% blocktrans with licence=app.licence %}
+              This part of AlekSIS is licenced under the {{ licence }}.
+            {% endblocktrans %}
+          </p>
+        {% endif %}
+      </div>
+      {% if app.repository %}
+        <div class="card-action">
+          <a href="{{ app.repository }}">{% trans "Show source code" %}</a>
+        </div>
+      {% endif %}
+    </div>
+  {% endfor %}
+{% endblock %}

aleksis/core/templates/core/base.html

@@ -132,8 +132,8 @@
   <div class="footer-copyright">
     <div class="container">
       <div class="left">
-        <a class="blue-text text-lighten-4" href="https://aleksis.edugit.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 @
         <a class="blue-text text-lighten-4" href="https://www.teckids.org">

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"),

aleksis/core/views.py

@@ -5,6 +5,7 @@ from django.core.exceptions import PermissionDenied
 from django.http import Http404, HttpRequest, HttpResponse
 from django.shortcuts import get_object_or_404, redirect, render
 from django.utils.translation import ugettext_lazy as _
+from django.conf import settings
 
 from django_tables2 import RequestConfig
 
@@ -42,6 +43,13 @@ def offline(request):
     return render(request, "core/offline.html")
 
 
+def about(request):
+    context = {}
+
+    context["licence_information"] = settings.LICENCE_INFORMATION
+
+    return render(request, "core/about.html", context)
+
 @login_required
 def persons(request: HttpRequest) -> HttpResponse:
     context = {}