src/wolnelektury/views.py

   1 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   2 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   3 #
   4 from datetime import date, datetime
   5 import feedparser
   6 from allauth.socialaccount.views import SignupView
   7
   8 from django.conf import settings
   9 from django.contrib import auth
  10 from django.contrib.auth.decorators import login_required
  11 from django.contrib.auth.forms import AuthenticationForm
  12 from django.core.cache import cache
  13 from django.http import HttpResponse, HttpResponseRedirect
  14 from django.shortcuts import render
  15 from django.utils.http import urlquote_plus
  16 from django.utils.translation import ugettext_lazy as _
  17 from django.views.decorators.cache import never_cache
  18
  19 from ajaxable.utils import AjaxableFormView
  20 from ajaxable.utils import placeholdized
  21 from catalogue.models import Book, Collection, Tag, Fragment
  22
  23 from social.utils import get_or_choose_cite
  24 from wolnelektury.forms import RegistrationForm, SocialSignupForm
  25
  26
  27 @never_cache
  28 def main_page(request):
  29     ctx = {
  30         'last_published': Book.objects.exclude(cover_thumb='').filter(findable=True, parent=None).order_by('-created_at')[:6],
  31         'theme_books': [],
  32     }
  33
  34     # FIXME: find this theme and books properly.
  35     if Fragment.objects.exists():
  36         while True:
  37             ctx['theme'] = Tag.objects.filter(category='theme').order_by('?')[:1][0]
  38             tf = Fragment.tagged.with_any([ctx['theme']]).select_related('book').filter(book__findable=True).order_by('?')[:100]
  39             if not tf:
  40                 continue
  41             ctx['theme_fragment'] = tf[0]
  42             for f in tf:
  43                 if f.book not in ctx['theme_books']:
  44                     ctx['theme_books'].append(f.book)
  45                 if len(ctx['theme_books']) == 3:
  46                     break
  47             break
  48
  49     # Choose a collection for main.
  50     try:
  51         ctx['collection'] = Collection.objects.filter(listed=True).order_by('?')[:1][0]
  52     except IndexError:
  53         pass
  54
  55     best = []
  56     best_places = 5
  57     for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
  58         books = list(recommended.get_books().exclude(id__in=[b.id for b in best]).order_by('?')[:best_places])
  59         best.extend(books)
  60         best_places -= len(books)
  61         if not best_places:
  62             break
  63     if best_places:
  64         best.extend(
  65             list(
  66                 Book.objects.filter(findable=True).exclude(id__in=[b.id for b in best]).order_by('?')[:best_places]
  67             )
  68         )
  69     ctx['best'] = best
  70
  71     return render(request, "main_page.html", ctx)
  72
  73
  74 class LoginFormView(AjaxableFormView):
  75     form_class = AuthenticationForm
  76     template = "auth/login.html"
  77     placeholdize = True
  78     title = _('Sign in')
  79     submit = _('Sign in')
  80     ajax_redirect = True
  81
  82     def __call__(self, request):
  83         if request.user.is_authenticated:
  84             return self.redirect_or_refresh(
  85                 request, '/',
  86                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  87         return super(LoginFormView, self).__call__(request)
  88
  89     def success(self, form, request):
  90         auth.login(request, form.get_user())
  91
  92
  93 class RegisterFormView(AjaxableFormView):
  94     form_class = RegistrationForm
  95     template = "auth/register.html"
  96     placeholdize = True
  97     title = _('Register')
  98     submit = _('Register')
  99     ajax_redirect = True
 100     form_prefix = 'register'
 101     honeypot = True
 102
 103     def __call__(self, request):
 104         if request.user.is_authenticated:
 105             return self.redirect_or_refresh(
 106                 request, '/',
 107                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
 108         return super(RegisterFormView, self).__call__(request)
 109
 110     def success(self, form, request):
 111         form.save()
 112         user = auth.authenticate(
 113             username=form.cleaned_data['username'],
 114             password=form.cleaned_data['password1']
 115         )
 116         auth.login(request, user)
 117
 118
 119 class LoginRegisterFormView(LoginFormView):
 120     template = 'auth/login_register.html'
 121     title = _('You have to be logged in to continue')
 122
 123     def extra_context(self, request, obj):
 124         return {
 125             "register_form": placeholdized(RegistrationForm(prefix='register')),
 126             "register_submit": _('Register'),
 127         }
 128
 129
 130 @never_cache
 131 def logout_then_redirect(request):
 132     auth.logout(request)
 133     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 134
 135
 136 @never_cache
 137 def clock(request):
 138     """ Provides server UTC time for jquery.countdown,
 139     in a format suitable for Date.parse()
 140     """
 141     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 142
 143
 144 def publish_plan(request):
 145     cache_key = "publish_plan"
 146     plan = cache.get(cache_key)
 147
 148     if plan is None:
 149         plan = []
 150         try:
 151             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 152         except:
 153             pass
 154         else:
 155             for i in range(len(feed['entries'])):
 156                 plan.append({
 157                     'title': feed['entries'][i].title,
 158                     'link': feed['entries'][i].link,
 159                     })
 160         cache.set(cache_key, plan, 1800)
 161
 162     return render(request, "publish_plan.html", {'plan': plan})
 163
 164
 165 @login_required
 166 def user_settings(request):
 167     return render(request, "user.html")
 168
 169
 170 def widget(request):
 171     return render(request, 'widget.html')
 172
 173
 174 class SocialSignupView(SignupView):
 175     form_class = SocialSignupForm
 176
 177
 178 def exception_test(request):
 179     msg = request.GET.get('msg')
 180     if msg:
 181         raise Exception('Exception test: %s' % msg)
 182     else:
 183         raise Exception('Exception test')
 184
 185
 186 def post_test(request):
 187     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})