apps/wolnelektury_core/views.py

   1 # -*- coding: utf-8 -*-
   2 # This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
   3 # Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
   4 #
   5 from datetime import date, datetime
   6 import feedparser
   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 UserCreationForm, 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
  22 from ssify import ssi_included
  23
  24
  25 def main_page(request):
  26     last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:4]
  27
  28     return render(request, "main_page.html", {
  29         'last_published': last_published,
  30     })
  31
  32
  33 class LoginFormView(AjaxableFormView):
  34     form_class = AuthenticationForm
  35     template = "auth/login.html"
  36     placeholdize = True
  37     title = _('Sign in')
  38     submit = _('Sign in')
  39     ajax_redirect = True
  40
  41     def __call__(self, request):
  42         if request.user.is_authenticated():
  43             return self.redirect_or_refresh(request, '/',
  44                 message=_('Already logged in as user %(user)s', ) %
  45                             {'user': request.user.username})
  46         return super(LoginFormView, self).__call__(request)
  47
  48     def success(self, form, request):
  49         auth.login(request, form.get_user())
  50
  51
  52 class RegisterFormView(AjaxableFormView):
  53     form_class = UserCreationForm
  54     template = "auth/register.html"
  55     placeholdize = True
  56     title = _('Register')
  57     submit = _('Register')
  58     ajax_redirect = True
  59     form_prefix = 'register'
  60     honeypot = True
  61
  62     def __call__(self, request):
  63         if request.user.is_authenticated():
  64             return self.redirect_or_refresh(request, '/',
  65                 message=_('Already logged in as user %(user)s', ) %
  66                             {'user': request.user.username})
  67         return super(RegisterFormView, self).__call__(request)
  68
  69     def success(self, form, request):
  70         form.save()
  71         user = auth.authenticate(
  72             username=form.cleaned_data['username'],
  73             password=form.cleaned_data['password1']
  74         )
  75         auth.login(request, user)
  76
  77
  78 class LoginRegisterFormView(LoginFormView):
  79     template = 'auth/login_register.html'
  80     title = _('You have to be logged in to continue')
  81
  82     def extra_context(self, request, obj):
  83         return {
  84             "register_form": placeholdized(UserCreationForm(prefix='register')),
  85             "register_submit": _('Register'),
  86         }
  87
  88
  89 @never_cache
  90 def logout_then_redirect(request):
  91     auth.logout(request)
  92     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  93
  94
  95 @never_cache
  96 def clock(request):
  97     """ Provides server UTC time for jquery.countdown,
  98     in a format suitable for Date.parse()
  99     """
 100     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 101
 102
 103 def publish_plan(request):
 104     cache_key = "publish_plan"
 105     plan = cache.get(cache_key)
 106
 107     if plan is None:
 108         plan = []
 109         try:
 110             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 111         except:
 112             pass
 113         else:
 114             for i in range(len(feed['entries'])):
 115                 plan.append({
 116                     'title': feed['entries'][i].title,
 117                     'link': feed['entries'][i].link,
 118                     })
 119         cache.set(cache_key, plan, 1800)
 120
 121     return render(request, "publish_plan.html", {'plan': plan})
 122
 123
 124 @login_required
 125 def user_settings(request):
 126     return render(request, "user.html")
 127
 128
 129 @ssi_included(use_lang=False, timeout=1800)
 130 def latest_blog_posts(request, feed_url=None, posts_to_show=5):
 131     if feed_url is None:
 132         feed_url = settings.LATEST_BLOG_POSTS
 133     try:
 134         feed = feedparser.parse(str(feed_url))
 135         posts = []
 136         for i in range(posts_to_show):
 137             pub_date = feed['entries'][i].published_parsed
 138             published = date(pub_date[0], pub_date[1], pub_date[2])
 139             posts.append({
 140                 'title': feed['entries'][i].title,
 141                 'summary': feed['entries'][i].summary,
 142                 'link': feed['entries'][i].link,
 143                 'date': published,
 144                 })
 145     except:
 146         posts = []
 147     return render(request, 'latest_blog_posts.html', {'posts': posts})
 148
 149
 150 @ssi_included(use_lang=False)
 151 def widget(request):
 152     return render(request, 'widget.html')