From 211e39be2c29acf5f39cfb2486c4fc727c34a03e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Norman=20J=C3=A4ckel?= <openslides@normanjaeckel.de>
Date: Thu, 18 Jun 2015 21:48:20 +0200
Subject: [PATCH] Added version view via REST API.

---
 openslides/core/urls.py              |  3 +++
 openslides/core/views.py             | 25 +++++++++++++++++++++++++
 tests/integration/core/test_views.py | 16 ++++++++++++++++
 tests/old/utils/__init__.py          |  2 ++
 4 files changed, 46 insertions(+)

diff --git a/openslides/core/urls.py b/openslides/core/urls.py
index 88093fd89..9bcf92ec4 100644
--- a/openslides/core/urls.py
+++ b/openslides/core/urls.py
@@ -7,4 +7,7 @@ urlpatterns = patterns(
     url(r'^core/url_patterns/$',
         views.UrlPatternsView.as_view(),
         name='core_url_patterns'),
+    url(r'^core/version/$',
+        views.VersionView.as_view(),
+        name='core_version'),
 )
diff --git a/openslides/core/views.py b/openslides/core/views.py
index ae11d6b5c..3ac43a34b 100644
--- a/openslides/core/views.py
+++ b/openslides/core/views.py
@@ -1,10 +1,17 @@
 import re
 
+from django.conf import settings
 from django.contrib.staticfiles import finders
 from django.core.urlresolvers import get_resolver
 from django.http import HttpResponse
 
+from openslides import __version__ as version
 from openslides.utils import views as utils_views
+from openslides.utils.plugins import (
+    get_plugin_description,
+    get_plugin_verbose_name,
+    get_plugin_version,
+)
 from openslides.utils.rest_api import (
     ModelViewSet,
     ReadOnlyModelViewSet,
@@ -191,3 +198,21 @@ class UrlPatternsView(utils_views.APIView):
             url, url_kwargs = normalized_regex_bits[0]
             result[pattern_name] = self.URL_KWARGS_REGEX.sub(r':\1', url)
         return result
+
+
+class VersionView(utils_views.APIView):
+    """
+    Returns a dictionary with the OpenSlides version and the version of all
+    plugins.
+    """
+    http_method_names = ['get']
+
+    def get_context_data(self, **context):
+        result = dict(openslides_version=version, plugins=[])
+        # Versions of plugins.
+        for plugin in settings.INSTALLED_PLUGINS:
+            result['plugins'].append({
+                'verbose_name': get_plugin_verbose_name(plugin),
+                'description': get_plugin_description(plugin),
+                'version': get_plugin_version(plugin)})
+        return result
diff --git a/tests/integration/core/test_views.py b/tests/integration/core/test_views.py
index 4b09e8638..d7a9efeb1 100644
--- a/tests/integration/core/test_views.py
+++ b/tests/integration/core/test_views.py
@@ -3,6 +3,7 @@ import json
 from django.core.urlresolvers import reverse
 from rest_framework import status
 
+from openslides import __version__ as version
 from openslides.core.models import CustomSlide, Projector
 from openslides.utils.test import TestCase
 
@@ -44,3 +45,18 @@ class ProjectorAPI(TestCase):
             'projector_elements': [
                 {'name': 'invalid_slide',
                  'error': 'Projector element does not exist.'}]})
+
+
+class VersionView(TestCase):
+    """
+    Tests the version info view.
+    """
+    def test_get(self):
+        self.client.login(username='admin', password='admin')
+        response = self.client.get(reverse('core_version'))
+        self.assertEqual(json.loads(response.content.decode()), {
+            'openslides_version': version,
+            'plugins': [
+                {'verbose_name': 'Plugin tests.old.utils',
+                 'description': 'Description of plugin tests.old.utils',
+                 'version': 'unknown'}]})
diff --git a/tests/old/utils/__init__.py b/tests/old/utils/__init__.py
index e69de29bb..36b96fbb1 100644
--- a/tests/old/utils/__init__.py
+++ b/tests/old/utils/__init__.py
@@ -0,0 +1,2 @@
+__verbose_name__ = 'Plugin tests.old.utils'
+__description__ = 'Description of plugin tests.old.utils'