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 from urllib.parse import quote_plus
   6 import feedparser
   7 from allauth.socialaccount.views import SignupView
   8
   9 from django.conf import settings
  10 from django.contrib import auth
  11 from django.contrib.auth.decorators import login_required
  12 from django.contrib.auth.forms import AuthenticationForm
  13 from django.core.cache import cache
  14 from django.http import HttpResponse, HttpResponseRedirect
  15 from django.shortcuts import render
  16 from django.utils.translation import gettext_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 collections for main.
  50     ctx['collections'] = Collection.objects.filter(listed=True).order_by('?')[:4]
  51
  52     best = []
  53     best_places = 5
  54     recommended_collection = None
  55     for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
  56         if recommended_collection is None:
  57             recommended_collection = recommended
  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     ctx['recommended_collection'] = recommended_collection
  64     if best_places:
  65         best.extend(
  66             list(
  67                 Book.objects.filter(findable=True).exclude(id__in=[b.id for b in best]).order_by('?')[:best_places]
  68             )
  69         )
  70     ctx['best'] = best
  71
  72     return render(request, "main_page.html", ctx)
  73
  74
  75 class LoginFormView(AjaxableFormView):
  76     form_class = AuthenticationForm
  77     template = "auth/login.html"
  78     placeholdize = True
  79     title = _('Sign in')
  80     submit = _('Sign in')
  81     ajax_redirect = True
  82
  83     def __call__(self, request):
  84         if request.user.is_authenticated:
  85             return self.redirect_or_refresh(
  86                 request, '/',
  87                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  88         return super(LoginFormView, self).__call__(request)
  89
  90     def success(self, form, request):
  91         auth.login(request, form.get_user())
  92
  93
  94 class RegisterFormView(AjaxableFormView):
  95     form_class = RegistrationForm
  96     template = "auth/register.html"
  97     placeholdize = True
  98     title = _('Register')
  99     submit = _('Register')
 100     ajax_redirect = True
 101     form_prefix = 'register'
 102     honeypot = True
 103
 104     def __call__(self, request):
 105         if request.user.is_authenticated:
 106             return self.redirect_or_refresh(
 107                 request, '/',
 108                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
 109         return super(RegisterFormView, self).__call__(request)
 110
 111     def success(self, form, request):
 112         form.save()
 113         user = auth.authenticate(
 114             username=form.cleaned_data['username'],
 115             password=form.cleaned_data['password1']
 116         )
 117         auth.login(request, user)
 118
 119
 120 class LoginRegisterFormView(LoginFormView):
 121     template = 'auth/login_register.html'
 122     title = _('You have to be logged in to continue')
 123
 124     def extra_context(self, request, obj):
 125         return {
 126             "register_form": placeholdized(RegistrationForm(prefix='register')),
 127             "register_submit": _('Register'),
 128         }
 129
 130
 131 @never_cache
 132 def logout_then_redirect(request):
 133     auth.logout(request)
 134     return HttpResponseRedirect(quote_plus(request.GET.get('next', '/'), safe='/?='))
 135
 136
 137 @never_cache
 138 def clock(request):
 139     """ Provides server UTC time for jquery.countdown,
 140     in a format suitable for Date.parse()
 141     """
 142     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 143
 144
 145 def publish_plan(request):
 146     cache_key = "publish_plan"
 147     plan = cache.get(cache_key)
 148
 149     if plan is None:
 150         plan = []
 151         try:
 152             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 153         except:
 154             pass
 155         else:
 156             for i in range(len(feed['entries'])):
 157                 plan.append({
 158                     'title': feed['entries'][i].title,
 159                     'link': feed['entries'][i].link,
 160                     })
 161         cache.set(cache_key, plan, 1800)
 162
 163     return render(request, "publish_plan.html", {'plan': plan})
 164
 165
 166 @login_required
 167 def user_settings(request):
 168     return render(request, "user.html")
 169
 170
 171 def widget(request):
 172     return render(request, 'widget.html')
 173
 174
 175 class SocialSignupView(SignupView):
 176     form_class = SocialSignupForm
 177
 178
 179 def exception_test(request):
 180     msg = request.GET.get('msg')
 181     if msg:
 182         raise Exception('Exception test: %s' % msg)
 183     else:
 184         raise Exception('Exception test')
 185
 186
 187 def post_test(request):
 188     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})