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 datetime
   6 import feedparser
   7
   8 from django.contrib import auth
   9 from django.contrib.auth.decorators import login_required
  10 from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
  11 from django.core.cache import cache
  12 from django.http import HttpResponse, HttpResponseRedirect
  13 from django.shortcuts import render_to_response
  14 from django.template import RequestContext
  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 django.conf import settings
  20 from ajaxable.utils import AjaxableFormView
  21 from catalogue.models import Book
  22 from ajaxable.utils import placeholdized
  23 from social.templatetags.social_tags import choose_cite
  24
  25
  26 def main_page(request):
  27     last_published = Book.objects.exclude(cover_thumb='').filter(parent=None).order_by('-created_at')[:4]
  28     cite = choose_cite(RequestContext(request))
  29
  30     return render_to_response("main_page.html", locals(),
  31         context_instance=RequestContext(request))
  32
  33
  34 class LoginFormView(AjaxableFormView):
  35     form_class = AuthenticationForm
  36     template = "auth/login.html"
  37     placeholdize = True
  38     title = _('Sign in')
  39     submit = _('Sign in')
  40     ajax_redirect = True
  41
  42     def __call__(self, request):
  43         if request.user.is_authenticated():
  44             return self.redirect_or_refresh(request, '/',
  45                 message=_('Already logged in as user %(user)s', ) %
  46                             {'user': request.user.username})
  47         return super(LoginFormView, self).__call__(request)
  48
  49     def success(self, form, request):
  50         auth.login(request, form.get_user())
  51
  52
  53 class RegisterFormView(AjaxableFormView):
  54     form_class = UserCreationForm
  55     template = "auth/register.html"
  56     placeholdize = True
  57     title = _('Register')
  58     submit = _('Register')
  59     ajax_redirect = True
  60     form_prefix = 'register'
  61     honeypot = True
  62
  63     def __call__(self, request):
  64         if request.user.is_authenticated():
  65             return self.redirect_or_refresh(request, '/',
  66                 message=_('Already logged in as user %(user)s', ) %
  67                             {'user': request.user.username})
  68         return super(RegisterFormView, self).__call__(request)
  69
  70     def success(self, form, request):
  71         form.save()
  72         user = auth.authenticate(
  73             username=form.cleaned_data['username'],
  74             password=form.cleaned_data['password1']
  75         )
  76         auth.login(request, user)
  77
  78
  79 class LoginRegisterFormView(LoginFormView):
  80     template = 'auth/login_register.html'
  81     title = _('You have to be logged in to continue')
  82
  83     def extra_context(self, request, obj):
  84         return {
  85             "register_form": placeholdized(UserCreationForm(prefix='register')),
  86             "register_submit": _('Register'),
  87         }
  88
  89
  90 @never_cache
  91 def logout_then_redirect(request):
  92     auth.logout(request)
  93     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
  94
  95
  96 @never_cache
  97 def clock(request):
  98     """ Provides server UTC time for jquery.countdown,
  99     in a format suitable for Date.parse()
 100     """
 101     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
 102
 103
 104 def publish_plan(request):
 105     cache_key = "publish_plan"
 106     plan = cache.get(cache_key)
 107
 108     if plan is None:
 109         plan = []
 110         try:
 111             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
 112         except:
 113             pass
 114         else:
 115             for i in range(len(feed['entries'])):
 116                 plan.append({
 117                     'title': feed['entries'][i].title,
 118                     'link': feed['entries'][i].link,
 119                     })
 120         cache.set(cache_key, plan, 1800)
 121
 122     return render_to_response("publish_plan.html", {'plan': plan},
 123         context_instance=RequestContext(request))
 124
 125
 126 @login_required
 127 def user_settings(request):
 128     return render_to_response("user.html",
 129         context_instance=RequestContext(request))