fixes #4243: visible author link in book box
[wolnelektury.git] / 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
23 from social.utils import get_or_choose_cite
24 from wolnelektury.forms import RegistrationForm, SocialSignupForm
25
26
27 @never_cache
28 def main_page(request):
29     ctx = {
30         'last_published': Book.objects.exclude(cover_thumb='').filter(findable=True, 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').filter(book__findable=True).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 collections for main.
50     ctx['collections'] = Collection.objects.filter(listed=True).order_by('?')[:4]
51
52     best = []
53     best_places = 5
54     recommended_collection = None
55     for recommended in Collection.objects.filter(listed=True, role='recommend').order_by('?'):
56         if recommended_collection is None:
57             recommended_collection = recommended
58         books = list(recommended.get_books().exclude(id__in=[b.id for b in best]).order_by('?')[:best_places])
59         best.extend(books)
60         best_places -= len(books)
61         if not best_places:
62             break
63     ctx['recommended_collection'] = recommended_collection
64     if best_places:
65         best.extend(
66             list(
67                 Book.objects.filter(findable=True).exclude(id__in=[b.id for b in best]).order_by('?')[:best_places]
68             )
69         )
70     ctx['best'] = best
71
72     return render(request, "main_page.html", ctx)
73
74
75 class LoginFormView(AjaxableFormView):
76     form_class = AuthenticationForm
77     template = "auth/login.html"
78     placeholdize = True
79     title = _('Sign in')
80     submit = _('Sign in')
81     ajax_redirect = True
82
83     def __call__(self, request):
84         if request.user.is_authenticated:
85             return self.redirect_or_refresh(
86                 request, '/',
87                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
88         return super(LoginFormView, self).__call__(request)
89
90     def success(self, form, request):
91         auth.login(request, form.get_user())
92
93
94 class RegisterFormView(AjaxableFormView):
95     form_class = RegistrationForm
96     template = "auth/register.html"
97     placeholdize = True
98     title = _('Register')
99     submit = _('Register')
100     ajax_redirect = True
101     form_prefix = 'register'
102     honeypot = True
103
104     def __call__(self, request):
105         if request.user.is_authenticated:
106             return self.redirect_or_refresh(
107                 request, '/',
108                 message=_('Already logged in as user %(user)s', ) % {'user': request.user.username})
109         return super(RegisterFormView, self).__call__(request)
110
111     def success(self, form, request):
112         form.save()
113         user = auth.authenticate(
114             username=form.cleaned_data['username'],
115             password=form.cleaned_data['password1']
116         )
117         auth.login(request, user)
118
119
120 class LoginRegisterFormView(LoginFormView):
121     template = 'auth/login_register.html'
122     title = _('You have to be logged in to continue')
123
124     def extra_context(self, request, obj):
125         return {
126             "register_form": placeholdized(RegistrationForm(prefix='register')),
127             "register_submit": _('Register'),
128         }
129
130
131 @never_cache
132 def logout_then_redirect(request):
133     auth.logout(request)
134     return HttpResponseRedirect(urlquote_plus(request.GET.get('next', '/'), safe='/?='))
135
136
137 @never_cache
138 def clock(request):
139     """ Provides server UTC time for jquery.countdown,
140     in a format suitable for Date.parse()
141     """
142     return HttpResponse(datetime.utcnow().strftime('%Y/%m/%d %H:%M:%S UTC'))
143
144
145 def publish_plan(request):
146     cache_key = "publish_plan"
147     plan = cache.get(cache_key)
148
149     if plan is None:
150         plan = []
151         try:
152             feed = feedparser.parse(settings.PUBLISH_PLAN_FEED)
153         except:
154             pass
155         else:
156             for i in range(len(feed['entries'])):
157                 plan.append({
158                     'title': feed['entries'][i].title,
159                     'link': feed['entries'][i].link,
160                     })
161         cache.set(cache_key, plan, 1800)
162
163     return render(request, "publish_plan.html", {'plan': plan})
164
165
166 @login_required
167 def user_settings(request):
168     return render(request, "user.html")
169
170
171 def widget(request):
172     return render(request, 'widget.html')
173
174
175 class SocialSignupView(SignupView):
176     form_class = SocialSignupForm
177
178
179 def exception_test(request):
180     msg = request.GET.get('msg')
181     if msg:
182         raise Exception('Exception test: %s' % msg)
183     else:
184         raise Exception('Exception test')
185
186
187 def post_test(request):
188     return render(request, 'post_test.html', {'action': '/api/reading/jego-zasady/complete/'})