1# (c) 2018-2020 

2# MPIB <https://www.mpib-berlin.mpg.de/>, 

3# MPI-CBS <https://www.cbs.mpg.de/>, 

4# MPIP <http://www.psych.mpg.de/> 

5# 

6# This file is part of Castellum. 

7# 

8# Castellum is free software; you can redistribute it and/or modify it 

9# under the terms of the GNU Affero General Public License as published 

10# by the Free Software Foundation; either version 3 of the License, or 

11# (at your option) any later version. 

12# 

13# Castellum is distributed in the hope that it will be useful, but 

14# WITHOUT ANY WARRANTY; without even the implied warranty of 

15# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 

16# Affero General Public License for more details. 

17# 

18# You should have received a copy of the GNU Affero General Public 

19# License along with Castellum. If not, see 

20# <http://www.gnu.org/licenses/>. 

21 

22from django import forms 

23from django.core.exceptions import ImproperlyConfigured 

24from django.http import HttpResponseBadRequest 

25from django.utils.http import url_has_allowed_host_and_scheme 

26 

27from .forms import ReadonlyFormMixin 

28from .forms import ReadonlyModelForm 

29 

30 

31class ReadonlyMixin: 

32 def get_readonly(self): 

33 raise NotImplementedError 

34 

35 def get_form_class(self): 

36 if self.form_class: 

37 if issubclass(self.form_class, ReadonlyFormMixin): 37 ↛ 40line 37 didn't jump to line 40, because the condition on line 37 was never false

38 return self.form_class 

39 else: 

40 raise ImproperlyConfigured('form_class is not a subclass of ReadonlyFormMixin') 

41 return forms.modelform_factory(self.model, fields=self.fields, form=ReadonlyModelForm) 

42 

43 def get_form_kwargs(self): 

44 kwargs = super().get_form_kwargs() 

45 kwargs['readonly'] = self.get_readonly() 

46 return kwargs 

47 

48 def get_context_data(self, **kwargs): 

49 context = super().get_context_data(**kwargs) 

50 context['readonly'] = self.get_readonly() 

51 return context 

52 

53 def post(self, request, *args, **kwargs): 

54 self.object = self.get_object() 

55 if self.get_readonly(): 55 ↛ 57line 55 didn't jump to line 57, because the condition on line 55 was never false

56 return HttpResponseBadRequest() 

57 return super().post(request, *args, **kwargs) 

58 

59 

60def get_next_url(request, default='/'): 

61 url = request.POST.get('next', request.GET.get('next')) 

62 is_safe = url_has_allowed_host_and_scheme( 

63 url, allowed_hosts=[request.get_host()], require_https=request.is_secure() 

64 ) 

65 if url and is_safe: 

66 return url 

67 else: 

68 return default