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 from ssify import ssi_included
  23
  24 from social.utils import get_or_choose_cite
  25 from wolnelektury.forms import RegistrationForm, SocialSignupForm
  26
  27
  28 def main_page(request):
  29     ctx = {
  30         'last_published': Book.objects.exclude(cover_thumb='').filter(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').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.order_by('?')[:1][0]
  52     except IndexError:
  53         pass
  54
  55     ctx['best'] = Book.objects.order_by('?')[:5]
  56
  57     return render(request, "main_page.html", ctx)
  58
  59
  60 class LoginFormView(AjaxableFormView):
  61     form_class = AuthenticationForm
  62     template = "auth/login.html"
  63     placeholdize = True
  64     title = _('Sign in')
  65     submit = _('Sign in')
  66     ajax_redirect = True
  67
  68     def __call__(self, request):
  69         if request.user.is_authenticated():
  70             return self.redirect_or_refresh(
  71                 request, '/',
  72                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  73         return super(LoginFormView, self).__call__(request)
  74
  75     def success(self, form, request):
  76         auth.login(request, form.get_user())
  77
  78
  79 class RegisterFormView(AjaxableFormView):
  80     form_class = RegistrationForm
  81     template = "auth/register.html"
  82     placeholdize = True
  83     title = _('Register')
  84     submit = _('Register')
  85     ajax_redirect = True
  86     form_prefix = 'register'
  87     honeypot = True
  88
  89     def __call__(self, request):
  90         if request.user.is_authenticated():
  91             return self.redirect_or_refresh(
  92                 request, '/',
  93                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  94         return super(RegisterFormView, self).__call__(request)
  95
  96     def success(self, form, request):
  97         form.save()
  98         user = auth.authenticate(
  99             username=form.cleaned_data['username'],
 100             password=form.cleaned_data['password1']
 101         )
 102         auth.login(request, user)
 103
 104
 105 class LoginRegisterFormView(LoginFormView):
 106     template = 'auth/login_register.html'
 107     title = _('You have to be logged in to continue')
 108
 109     def extra_context(self, request, obj):
 110         return {
 111             "register_form": placeholdized(RegistrationForm(prefix='register')),
 112             "register_submit": _('Register'),
 113         }
 114
 115
 116 @never_cache
 117 def logout_then_redirect(request):
 118     auth.logout(request)
 119     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 120
 121
 122 @never_cache
 123 def clock(request):
 124     """ Provides server UTC time for jquery.countdown,
 125     in a format suitable for Date.parse()
 126     """
 127     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 128
 129
 130 def publish_plan(request):
 131     cache_key = "publish_plan"
 132     plan = cache.get(cache_key)
 133
 134     if plan is None:
 135         plan = []
 136         try:
 137             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 138         except:
 139             pass
 140         else:
 141             for i in range(len(feed['entries'])):
 142                 plan.append({
 143                     'title': feed['entries'][i].title,
 144                     'link': feed['entries'][i].link,
 145                     })
 146         cache.set(cache_key, plan, 1800)
 147
 148     return render(request, "publish_plan.html", {'plan': plan})
 149
 150
 151 @login_required
 152 def user_settings(request):
 153     return render(request, "user.html")
 154
 155
 156 @ssi_included(use_lang=False, timeout=1800)
 157 def latest_blog_posts(request, feed_url=None, posts_to_show=5):
 158     if feed_url is None:
 159         feed_url = settings.LATEST_BLOG_POSTS
 160     try:
 161         feed = feedparser.parse(str(feed_url))
 162         posts = []
 163         for i in range(posts_to_show):
 164             pub_date = feed['entries'][i].published_parsed
 165             published = date(pub_date[0], pub_date[1], pub_date[2])
 166             posts.append({
 167                 'title': feed['entries'][i].title,
 168                 'summary': feed['entries'][i].summary,
 169                 'link': feed['entries'][i].link,
 170                 'date': published,
 171                 })
 172     except:
 173         posts = []
 174     return render(request, 'latest_blog_posts.html', {'posts': posts})
 175
 176
 177 @ssi_included(use_lang=False)
 178 def widget(request):
 179     return render(request, 'widget.html')
 180
 181
 182 class SocialSignupView(SignupView):
 183     form_class = SocialSignupForm
 184
 185
 186 def exception_test(request):
 187     msg = request.GET.get('msg')
 188     if msg:
 189         raise Exception('Exception test: %s' % msg)
 190     else:
 191         raise Exception('Exception test')
 192
 193
 194 def post_test(request):
 195     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})