Merge branch 'master' into production
[wolnelektury.git] / apps / wolnelektury_core / views.py
1 from datetime import datetime
2 import feedparser
3
4 from django.contrib import auth
5 from django.contrib.auth.decorators import login_required
6 from django.contrib.auth.forms import UserCreationForm, AuthenticationForm
7 from django.core.cache import cache
8 from django.http import HttpResponse, HttpResponseRedirect
9 from django.shortcuts import render_to_response
10 from django.template import RequestContext
11 from django.utils.http import urlquote_plus
12 from django.utils.translation import ugettext_lazy as _
13 from django.views.decorators.cache import never_cache
14
15 from django.conf import settings
16 from ajaxable.utils import AjaxableFormView
17 from catalogue.models import Book
18 from ajaxable.utils import placeholdized
19
20
21 @never_cache
22 def main_page(request):
23     last_published = Book.objects.filter(parent=None).order_by('-created_at')[:4]
24
25     return render_to_response("main_page.html", locals(),
26         context_instance=RequestContext(request))
27
28
29 class LoginFormView(AjaxableFormView):
30     form_class = AuthenticationForm
31     template = "auth/login.html"
32     placeholdize = True
33     title = _('Sign in')
34     submit = _('Sign in')
35     ajax_redirect = True
36
37     def __call__(self, request):
38         if request.user.is_authenticated():
39             return self.redirect_or_refresh(request, '/',
40                 message=_('Already logged in as user %(user)s', ) %
41                             {'user': request.user.username})
42         return super(LoginFormView, self).__call__(request)
43
44     def success(self, form, request):
45         auth.login(request, form.get_user())
46
47
48 class RegisterFormView(AjaxableFormView):
49     form_class = UserCreationForm
50     template = "auth/register.html"
51     placeholdize = True
52     title = _('Register')
53     submit = _('Register')
54     ajax_redirect = True
55     form_prefix = 'register'
56     honeypot = True
57
58     def __call__(self, request):
59         if request.user.is_authenticated():
60             return self.redirect_or_refresh(request, '/',
61                 message=_('Already logged in as user %(user)s', ) %
62                             {'user': request.user.username})
63         return super(RegisterFormView, self).__call__(request)
64
65     def success(self, form, request):
66         form.save()
67         user = auth.authenticate(
68             username=form.cleaned_data['username'],
69             password=form.cleaned_data['password1']
70         )
71         auth.login(request, user)
72
73
74 class LoginRegisterFormView(LoginFormView):
75     template = 'auth/login_register.html'
76     title = _('You have to be logged in to continue')
77
78     def extra_context(self, request, obj):
79         return {
80             "register_form": placeholdized(UserCreationForm(prefix='register')),
81             "register_submit": _('Register'),
82         }
83
84
85 @never_cache
86 def logout_then_redirect(request):
87     auth.logout(request)
88     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
89
90
91 def clock(request):
92     """ Provides server time for jquery.countdown,
93     in a format suitable for Date.parse()
94     """
95     return HttpResponse(datetime.now().strftime('%Y/%m/%d %H:%M:%S'))
96
97
98 def publish_plan(request):
99     cache_key = "publish_plan"
100     plan = cache.get(cache_key)
101
102     if plan is None:
103         plan = []
104         try:
105             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
106         except:
107             pass
108         else:
109             for i in range(len(feed['entries'])):
110                 plan.append({
111                     'title': feed['entries'][i].title,
112                     'link': feed['entries'][i].link,
113                     })
114         cache.set(cache_key, plan, 1800)
115
116     return render_to_response("publish_plan.html", {'plan': plan},
117         context_instance=RequestContext(request))
118
119
120 @login_required
121 def user_settings(request):
122     return render_to_response("user.html",
123         context_instance=RequestContext(request))