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 collections for main.
  50     ctx['collections'] = Collection.objects.filter(listed=True).order_by('?')[:4]
  51
  52     best = []
  53     best_places = 5
  54     for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
  55         books = list(recommended.get_books().exclude(id__in=[b.id for b in best]).order_by('?')[:best_places])
  56         best.extend(books)
  57         best_places -= len(books)
  58         if not best_places:
  59             break
  60     if best_places:
  61         best.extend(
  62             list(
  63                 Book.objects.filter(findable=True).exclude(id__in=[b.id for b in best]).order_by('?')[:best_places]
  64             )
  65         )
  66     ctx['best'] = best
  67
  68     return render(request, "main_page.html", ctx)
  69
  70
  71 class LoginFormView(AjaxableFormView):
  72     form_class = AuthenticationForm
  73     template = "auth/login.html"
  74     placeholdize = True
  75     title = _('Sign in')
  76     submit = _('Sign in')
  77     ajax_redirect = True
  78
  79     def __call__(self, request):
  80         if request.user.is_authenticated:
  81             return self.redirect_or_refresh(
  82                 request, '/',
  83                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  84         return super(LoginFormView, self).__call__(request)
  85
  86     def success(self, form, request):
  87         auth.login(request, form.get_user())
  88
  89
  90 class RegisterFormView(AjaxableFormView):
  91     form_class = RegistrationForm
  92     template = "auth/register.html"
  93     placeholdize = True
  94     title = _('Register')
  95     submit = _('Register')
  96     ajax_redirect = True
  97     form_prefix = 'register'
  98     honeypot = True
  99
 100     def __call__(self, request):
 101         if request.user.is_authenticated:
 102             return self.redirect_or_refresh(
 103                 request, '/',
 104                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
 105         return super(RegisterFormView, self).__call__(request)
 106
 107     def success(self, form, request):
 108         form.save()
 109         user = auth.authenticate(
 110             username=form.cleaned_data['username'],
 111             password=form.cleaned_data['password1']
 112         )
 113         auth.login(request, user)
 114
 115
 116 class LoginRegisterFormView(LoginFormView):
 117     template = 'auth/login_register.html'
 118     title = _('You have to be logged in to continue')
 119
 120     def extra_context(self, request, obj):
 121         return {
 122             "register_form": placeholdized(RegistrationForm(prefix='register')),
 123             "register_submit": _('Register'),
 124         }
 125
 126
 127 @never_cache
 128 def logout_then_redirect(request):
 129     auth.logout(request)
 130     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 131
 132
 133 @never_cache
 134 def clock(request):
 135     """ Provides server UTC time for jquery.countdown,
 136     in a format suitable for Date.parse()
 137     """
 138     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 139
 140
 141 def publish_plan(request):
 142     cache_key = "publish_plan"
 143     plan = cache.get(cache_key)
 144
 145     if plan is None:
 146         plan = []
 147         try:
 148             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 149         except:
 150             pass
 151         else:
 152             for i in range(len(feed['entries'])):
 153                 plan.append({
 154                     'title': feed['entries'][i].title,
 155                     'link': feed['entries'][i].link,
 156                     })
 157         cache.set(cache_key, plan, 1800)
 158
 159     return render(request, "publish_plan.html", {'plan': plan})
 160
 161
 162 @login_required
 163 def user_settings(request):
 164     return render(request, "user.html")
 165
 166
 167 def widget(request):
 168     return render(request, 'widget.html')
 169
 170
 171 class SocialSignupView(SignupView):
 172     form_class = SocialSignupForm
 173
 174
 175 def exception_test(request):
 176     msg = request.GET.get('msg')
 177     if msg:
 178         raise Exception('Exception test: %s' % msg)
 179     else:
 180         raise Exception('Exception test')
 181
 182
 183 def post_test(request):
 184     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})