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 @never_cache
  29 def main_page(request):
  30     ctx = {
  31         'last_published': Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:6],
  32         'theme_books': [],
  33     }
  34
  35     # FIXME: find this theme and books properly.
  36     if Fragment.objects.exists():
  37         while True:
  38             ctx['theme'] = Tag.objects.filter(category='theme').order_by('?')[:1][0]
  39             tf = Fragment.tagged.with_any([ctx['theme']]).select_related('book').order_by('?')[:100]
  40             if not tf:
  41                 continue
  42             ctx['theme_fragment'] = tf[0]
  43             for f in tf:
  44                 if f.book not in ctx['theme_books']:
  45                     ctx['theme_books'].append(f.book)
  46                 if len(ctx['theme_books']) == 3:
  47                     break
  48             break
  49
  50     # Choose a collection for main.
  51     try:
  52         ctx['collection'] = Collection.objects.order_by('?')[:1][0]
  53     except IndexError:
  54         pass
  55
  56     ctx['best'] = Book.objects.order_by('?')[:5]
  57
  58     return render(request, "main_page.html", ctx)
  59
  60
  61 class LoginFormView(AjaxableFormView):
  62     form_class = AuthenticationForm
  63     template = "auth/login.html"
  64     placeholdize = True
  65     title = _('Sign in')
  66     submit = _('Sign in')
  67     ajax_redirect = True
  68
  69     def __call__(self, request):
  70         if request.user.is_authenticated():
  71             return self.redirect_or_refresh(
  72                 request, '/',
  73                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  74         return super(LoginFormView, self).__call__(request)
  75
  76     def success(self, form, request):
  77         auth.login(request, form.get_user())
  78
  79
  80 class RegisterFormView(AjaxableFormView):
  81     form_class = RegistrationForm
  82     template = "auth/register.html"
  83     placeholdize = True
  84     title = _('Register')
  85     submit = _('Register')
  86     ajax_redirect = True
  87     form_prefix = 'register'
  88     honeypot = True
  89
  90     def __call__(self, request):
  91         if request.user.is_authenticated():
  92             return self.redirect_or_refresh(
  93                 request, '/',
  94                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
  95         return super(RegisterFormView, self).__call__(request)
  96
  97     def success(self, form, request):
  98         form.save()
  99         user = auth.authenticate(
 100             username=form.cleaned_data['username'],
 101             password=form.cleaned_data['password1']
 102         )
 103         auth.login(request, user)
 104
 105
 106 class LoginRegisterFormView(LoginFormView):
 107     template = 'auth/login_register.html'
 108     title = _('You have to be logged in to continue')
 109
 110     def extra_context(self, request, obj):
 111         return {
 112             "register_form": placeholdized(RegistrationForm(prefix='register')),
 113             "register_submit": _('Register'),
 114         }
 115
 116
 117 @never_cache
 118 def logout_then_redirect(request):
 119     auth.logout(request)
 120     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
 121
 122
 123 @never_cache
 124 def clock(request):
 125     """ Provides server UTC time for jquery.countdown,
 126     in a format suitable for Date.parse()
 127     """
 128     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 129
 130
 131 def publish_plan(request):
 132     cache_key = "publish_plan"
 133     plan = cache.get(cache_key)
 134
 135     if plan is None:
 136         plan = []
 137         try:
 138             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 139         except:
 140             pass
 141         else:
 142             for i in range(len(feed['entries'])):
 143                 plan.append({
 144                     'title': feed['entries'][i].title,
 145                     'link': feed['entries'][i].link,
 146                     })
 147         cache.set(cache_key, plan, 1800)
 148
 149     return render(request, "publish_plan.html", {'plan': plan})
 150
 151
 152 @login_required
 153 def user_settings(request):
 154     return render(request, "user.html")
 155
 156
 157 @ssi_included(use_lang=False, timeout=1800)
 158 def latest_blog_posts(request, feed_url=None, posts_to_show=5):
 159     if feed_url is None:
 160         feed_url = settings.LATEST_BLOG_POSTS
 161     try:
 162         feed = feedparser.parse(str(feed_url))
 163         posts = []
 164         for i in range(posts_to_show):
 165             pub_date = feed['entries'][i].published_parsed
 166             published = date(pub_date[0], pub_date[1], pub_date[2])
 167             posts.append({
 168                 'title': feed['entries'][i].title,
 169                 'summary': feed['entries'][i].summary,
 170                 'link': feed['entries'][i].link,
 171                 'date': published,
 172                 })
 173     except:
 174         posts = []
 175     return render(request, 'latest_blog_posts.html', {'posts': posts})
 176
 177
 178 @ssi_included(use_lang=False)
 179 def widget(request):
 180     return render(request, 'widget.html')
 181
 182
 183 class SocialSignupView(SignupView):
 184     form_class = SocialSignupForm
 185
 186
 187 def exception_test(request):
 188     msg = request.GET.get('msg')
 189     if msg:
 190         raise Exception('Exception test: %s' % msg)
 191     else:
 192         raise Exception('Exception test')
 193
 194
 195 def post_test(request):
 196     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})