wip: add a ProgramUpdateView

README.md

@@ -1,10 +1,9 @@
 ![](/logo.png)
 
-Platform to manage a radio, schedules, website, and so on. We use the power of great tools like Django or Liquidsoap.
+A platform to manage radio schedules, website content, and more. It uses the power of great tools like Django or Liquidsoap.
 
 This project is distributed under GPL version 3. More information in the LICENSE file, except for some files whose license is indicated inside source code.
 
-
 ## Features
 * **streams**: multiple random music streams when no program is played. We also can specify a time range and frequency for each;
 * **diffusions**: generate diffusions time slot for programs that have schedule informations. Check for conflicts and rerun.
@@ -15,7 +14,51 @@ This project is distributed under GPL version 3. More information in the LICENSE
 * **cms**: content management system.
 
 
-## Scripts
+## Architecture and concepts
+Aircox is divided in two main modules:
+* `aircox`: basics of Aircox (programs, diffusions, sounds, etc. management); interface for managing a website with Aircox elements (playlists, timetable, players on the website);
+* `aircox_streamer`: interact with application to generate audio stream (LiquidSoap);
+
+## Development setup
+Start installing a virtual environment :
+
+```
+virtualenv venv
+source venv/bin/activate
+pip install -r requirements.txt
+pip install -r requirements_tests.txt
+```
+
+Then copy the default settings and initiate the database :
+
+```
+cp instance/settings/sample.py instance/settings/settings.py
+python -c "from django.core.management.utils import get_random_secret_key; print(get_random_secret_key())" >> instance/settings/settings.py
+DJANGO_SETTINGS_MODULE=instance.settings.dev ./manage.py migrate
+```
+
+Finally test and run the instance using development settings, and point your browser to http://localhost:8000 :
+
+```
+DJANGO_SETTINGS_MODULE=instance.settings.dev pytest
+DJANGO_SETTINGS_MODULE=instance.settings.dev ./manage.py runserver
+```
+
+Before requesting a merge, enable pre-commit :
+
+```
+pip install pre-commit
+pre-commit install
+```
+
+## Installation
+Running Aircox on production involves:
+* Aircox modules and a running Django project;
+* a supervisor for common tasks (sounds monitoring, stream control, etc.) -- `supervisord`;
+* a wsgi and an HTTP server -- `gunicorn`, `nginx`;
+* a database supported by Django (MySQL, SQLite, PostGresSQL);
+
+### Scripts
 Are included various configuration scripts that can be used to ease setup. They
 assume that the project is present in `/srv/apps/aircox`:
 
@@ -27,7 +70,6 @@ The scripts are written with a combination of `cron`, `supervisord`, `nginx`
 and `gunicorn` in mind.
 
 
-## Installation
 ### Dependencies
 For python dependencies take a peek at the `requirements.txt` file, plus
 dependencies specific to Django (e.g. for database: `mysqlclient` for MySql

aircox/conf.py

@@ -86,8 +86,8 @@ class Settings(BaseSettings):
             # TODO include content_type in order to avoid clash with potential
             #      extra applications
             # aircox
-            "change_program",
-            "change_episode",
+            "view_program",
+            "view_episode",
             "change_diffusion",
             "add_comment",
             "change_comment",

aircox/migrations/0015_program_editors.py

@@ -0,0 +1,25 @@
+# Generated by Django 4.2.5 on 2023-10-18 13:50
+
+from django.db import migrations, models
+import django.db.models.deletion
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("auth", "0012_alter_user_first_name_max_length"),
+        ("aircox", "0014_alter_schedule_timezone"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="program",
+            name="editors",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.CASCADE,
+                to="auth.group",
+                verbose_name="editors",
+            ),
+        ),
+    ]

aircox/models/program.py

@@ -3,6 +3,8 @@ import os
 import shutil
 
 from django.conf import settings as conf
+from django.contrib.auth.models import Group, Permission
+from django.contrib.contenttypes.models import ContentType
 from django.db import models
 from django.db.models import F
 from django.db.models.functions import Concat, Substr
@@ -58,6 +60,7 @@ class Program(Page):
         default=True,
         help_text=_("update later diffusions according to schedule changes"),
     )
+    editors = models.ForeignKey(Group, models.CASCADE, blank=True, null=True, verbose_name=_("editors"))
 
     objects = ProgramQuerySet.as_manager()
     detail_url_name = "program-detail"
@@ -80,6 +83,14 @@ class Program(Page):
     def excerpts_path(self):
         return os.path.join(self.path, settings.SOUND_ARCHIVES_SUBDIR)
 
+    @property
+    def editors_group_name(self):
+        return "{self.title} editors"
+
+    @property
+    def change_permission_codename(self):
+        return f"change_program_{self.slug}"
+
     def __init__(self, *kargs, **kwargs):
         super().__init__(*kargs, **kwargs)
         if self.slug:
@@ -109,6 +120,18 @@ class Program(Page):
         os.makedirs(path, exist_ok=True)
         return os.path.exists(path)
 
+    def set_group_ownership(self):
+        editors, created = Group.objects.get_or_create(name=self.editors_group_name)
+        if created:
+            self.editors = editors
+        permission, _ = Permission.objects.get_or_create(
+            name=f"change program {self.title}",
+            codename=self.change_permission_codename,
+            content_type=ContentType.objects.get_for_model(self),
+        )
+        if permission not in editors.permissions.all():
+            editors.permissions.add(permission)
+
     class Meta:
         verbose_name = _("Program")
         verbose_name_plural = _("Programs")
@@ -134,6 +157,9 @@ class Program(Page):
             shutil.move(abspath, self.abspath)
             Sound.objects.filter(path__startswith=path_).update(file=Concat("file", Substr(F("file"), len(path_))))
 
+        self.set_group_ownership()
+        super().save(*kargs, **kwargs)
+
 
 class ProgramChildQuerySet(PageQuerySet):
     def station(self, station=None, id=None):

aircox/tests/conftest.py

@@ -157,3 +157,8 @@ def tracks(episode, sound):
     items += [baker.prepare(models.Track, sound=sound, position=i, timestamp=i * 60) for i in range(0, 3)]
     models.Track.objects.bulk_create(items)
     return items
+
+
+@pytest.fixture
+def user():
+    return User.objects.create_user(username="user1", password="bar")

aircox/tests/test_permissions.py

@@ -0,0 +1,37 @@
+import pytest
+from django.contrib.auth.models import User, Group
+from django.urls import reverse
+
+
+@pytest.mark.django_db()
+def test_no_admin(user, client):
+    client.force_login(user)
+    response = client.get("/admin/")
+    assert response.status_code != 200
+
+
+@pytest.mark.django_db()
+def test_user_cannot_change_program_or_episode(user, client, program):
+    assert not user.has_perm("aircox.change_program")
+    assert not user.has_perm("aircox.change_episode")
+
+
+@pytest.mark.django_db()
+def test_group_can_change_program(user, client, program):
+    program_editors = program.editors
+    assert program_editors in Group.objects.all()
+    assert not user.has_perm("aircox.%s" % program.change_permission_codename)
+    user.groups.add(program_editors)
+    user = User.objects.get(pk=user.pk)  # reload user in order to have permissions set
+    assert program_editors in user.groups.all()
+    assert user.has_perm("aircox.%s" % program.change_permission_codename)
+
+
+@pytest.mark.django_db()
+def test_group_change_program(user, client, program):
+    client.force_login(user)
+    response = client.get(reverse("program-edit", kwargs={"slug": program.slug}))
+    assert response.status_code == 403
+    user.groups.add(program.editors)
+    response = client.get(reverse("program-edit", kwargs={"slug": program.slug}))
+    assert response.status_code == 200

aircox/urls.py

@@ -92,6 +92,11 @@ urls = [
         views.ProgramDetailView.as_view(),
         name="program-detail",
     ),
+    path(
+        _("program/<slug:slug>/edit/"),
+        views.ProgramUpdateView.as_view(),
+        name="program-edit",
+    ),
     path(
         _("programs/<slug:parent_slug>/episodes/"),
         views.EpisodeListView.as_view(),

aircox/views/page.py

@@ -138,3 +138,7 @@ class PageDetailView(BasePageDetailView):
         comment.page = self.object
         comment.save()
         return self.get(request, *args, **kwargs)
+
+
+class PageUpdateView(PageDetailView):
+    pass

aircox/views/program.py

@@ -1,8 +1,10 @@
 from django.urls import reverse
 
+from django.contrib.auth.mixins import UserPassesTestMixin
+
 from ..models import Page, Program, StaticPage
 from .mixins import ParentMixin
-from .page import PageDetailView, PageListView
+from .page import PageDetailView, PageListView, PageUpdateView
 
 __all__ = ["ProgramPageDetailView", "ProgramDetailView", "ProgramPageListView"]
 
@@ -27,6 +29,18 @@ class ProgramDetailView(BaseProgramMixin, PageDetailView):
         return super().get_sidebar_queryset().filter(parent=self.program)
 
 
+class ProgramUpdateView(UserPassesTestMixin, BaseProgramMixin, PageUpdateView):
+    model = Program
+
+    def get_sidebar_queryset(self):
+        return super().get_sidebar_queryset().filter(parent=self.program)
+
+    def test_func(self):
+        program = self.get_object()
+        print("XXX, aircox.%s" % program.change_permission_codename)
+        return self.request.user.has_perm("aircox.%s" % program.change_permission_codename)
+
+
 class ProgramListView(PageListView):
     model = Program
     attach_to_value = StaticPage.ATTACH_TO_PROGRAMS

docs/technicians.md

@@ -1,25 +0,0 @@
-
-# General information
-Aircox is a set of Django applications that aims to provide a radio management solution, and is
-written in Python 3.5.
-
-Running Aircox on production involves:
-* Aircox modules and a running Django project;
-* a supervisor for common tasks (sounds monitoring, stream control, etc.) -- `supervisord`;
-* a wsgi and an HTTP server -- `gunicorn`, `nginx`;
-* a database supported by Django (MySQL, SQLite, PostGresSQL);
-
-# Architecture and concepts
-Aircox is divided in three main modules:
-* `programs`: basics of Aircox (programs, diffusions, sounds, etc. management);
-* `controllers`: interact with application to generate audio stream (LiquidSoap);
-* `cms`: create a website with Aircox elements (playlists, timetable, players on the website);
-
-
-
-
-
-# Installation
-
-
-# Configuration

instance/settings/dev.py

@@ -7,6 +7,7 @@ try:
 except ImportError:
     pass
 
+DEBUG = True
 
 LOCALE_PATHS = ["aircox/locale", "aircox_streamer/locale"]
 
@@ -15,7 +16,7 @@ LOGGING = {
     "disable_existing_loggers": False,
     "formatters": {
         "timestamp": {
-            "format": "{asctime} {levelname} {message}",
+            "format": "{asctime} {module} {levelname} {message}",
             "style": "{",
         },
     },
@@ -26,6 +27,10 @@ LOGGING = {
         },
     },
     "loggers": {
+        "root": {
+            "handlers": ["console"],
+            "level": os.getenv("DJANGO_LOG_LEVEL", "DEBUG"),
+        },
         "aircox": {
             "handlers": ["console"],
             "level": os.getenv("DJANGO_LOG_LEVEL", "DEBUG"),
@@ -40,3 +45,9 @@ LOGGING = {
         },
     },
 }
+
+CACHES = {
+    "default": {
+        "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
+    }
+}