Add system report for pretix Enterprise (#4213)

* Add system report for pretix Enterprise

* Update src/pretix/control/sysreport.py

Co-authored-by: Mira <weller@rami.io>

* ADd missing license header

---------

Co-authored-by: Mira <weller@rami.io>

src/pretix/control/views/global_settings.py

@@ -32,14 +32,16 @@
 # distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 # License for the specific language governing permissions and limitations under the License.
 import importlib_metadata as metadata
+from django.conf import settings
 from django.contrib import messages
-from django.http import JsonResponse
+from django.http import HttpResponse, JsonResponse
 from django.shortcuts import get_object_or_404, redirect, reverse
 from django.utils.timezone import now
 from django.utils.translation import gettext_lazy as _
 from django.views import View
 from django.views.generic import FormView, TemplateView
 
+from pretix.base.i18n import language
 from pretix.base.models import LogEntry, OrderPayment, OrderRefund
 from pretix.base.services.update_check import check_result_table, update_check
 from pretix.base.settings import GlobalSettingsObject
@@ -49,6 +51,7 @@ from pretix.control.forms.global_settings import (
 from pretix.control.permissions import (
     AdministratorPermissionRequiredMixin, StaffMemberRequiredMixin,
 )
+from pretix.control.sysreport import SysReport
 
 
 class GlobalSettingsView(AdministratorPermissionRequiredMixin, FormView):
@@ -262,3 +265,25 @@ class LicenseCheckView(StaffMemberRequiredMixin, FormView):
                 ))
 
         return res
+
+
+class SysReportView(AdministratorPermissionRequiredMixin, TemplateView):
+    template_name = 'pretixcontrol/global_sysreport.html'
+
+    def get(self, request, *args, **kwargs):
+        return super().get(request, *args, **kwargs)
+
+    def post(self, request, *args, **kwargs):
+        with language("en"):
+            try:
+                month = int(request.POST.get("month"))
+            except ValueError:
+                return super().get(request, *args, **kwargs)
+            if month < 1 or month > 12:
+                return super().get(request, *args, **kwargs)
+            name, mime, data = SysReport(month, settings.TIME_ZONE).render()
+            resp = HttpResponse(data)
+            resp['Content-Type'] = mime
+            resp['Content-Disposition'] = 'inline; filename="{}"'.format(name)
+            resp._csp_ignore = True
+            return resp