panikweb/views.py

   1 from datetime import datetime, timedelta, date
   2 import math
   3 import random
   4 import os
   5 import stat
   6 import time
   7
   8 from django.core.urlresolvers import reverse
   9 from django.conf import settings
  10 from django.http import Http404, JsonResponse
  11 from django.utils.encoding import force_text
  12 from django.utils.encoding import python_2_unicode_compatible
  13 from django.utils.six.moves.urllib import parse as urlparse
  14 from django.views.decorators.cache import cache_control
  15 from django.views.generic.base import TemplateView
  16 from django.views.generic.detail import DetailView
  17 from django.views.decorators.csrf import csrf_exempt
  18 from django.views.generic.dates import _date_from_string
  19 from django.views.generic.dates import MonthArchiveView
  20
  21 from django.core.paginator import Paginator
  22
  23 from django.contrib.sites.models import Site
  24 from django.contrib.syndication.views import Feed, add_domain
  25 from django.utils.feedgenerator import Atom1Feed, Rss201rev2Feed
  26
  27 from haystack.query import SearchQuerySet
  28
  29 from emissions.models import Category, Emission, Episode, Diffusion, SoundFile, \
  30         Schedule, Nonstop, NewsItem, NewsCategory, Focus
  31 from emissions.views import EmissionEpisodeMixin
  32 from emissions.utils import whatsonair, period_program
  33
  34 from newsletter.forms import SubscribeForm
  35 from nonstop.utils import get_current_nonstop_track
  36 from nonstop.models import SomaLogLine
  37
  38 from panikombo.models import ItemTopik
  39
  40 from . import utils
  41
  42
  43 class EmissionMixin:
  44     def get_emission_context(self, emission, episode_ids=None):
  45         context = {}
  46
  47         # get all episodes, with an additional attribute to get the date of
  48         # their first diffusion
  49         episodes_queryset = Episode.objects.select_related()
  50         if episode_ids is not None:
  51             episodes_queryset = episodes_queryset.filter(id__in=episode_ids)
  52         else:
  53             episodes_queryset = episodes_queryset.filter(emission=emission)
  54
  55         context['episodes'] = \
  56                 episodes_queryset.extra(select={
  57                         'first_diffusion': 'emissions_diffusion.datetime',
  58                         },
  59                         select_params=(False, True),
  60                         where=['''datetime = (SELECT MIN(datetime)
  61                                                 FROM emissions_diffusion
  62                                                WHERE episode_id = emissions_episode.id
  63                                                  AND datetime <= CURRENT_TIMESTAMP)'''],
  64                         tables=['emissions_diffusion'],
  65                     ).order_by('-first_diffusion').distinct()
  66
  67         context['futurEpisodes'] = \
  68                 episodes_queryset.extra(select={
  69                         'first_diffusion': 'emissions_diffusion.datetime',
  70                         },
  71                         select_params=(False, True),
  72                         where=['''datetime = (SELECT MIN(datetime)
  73                                                 FROM emissions_diffusion
  74                                                WHERE episode_id = emissions_episode.id
  75                                                  AND datetime > CURRENT_TIMESTAMP)'''],
  76                         tables=['emissions_diffusion'],
  77                     ).order_by('first_diffusion').distinct()
  78
  79
  80         # get all related soundfiles in a single query
  81         soundfiles = {}
  82         if episode_ids is not None:
  83             for episode_id in episode_ids:
  84                 soundfiles[episode_id] = None
  85         else:
  86             for episode in Episode.objects.filter(emission=emission):
  87                 soundfiles[episode.id] = None
  88
  89         for soundfile in SoundFile.objects.select_related().filter(podcastable=True,
  90                 fragment=False, episode__emission=emission):
  91             soundfiles[soundfile.episode_id] = soundfile
  92
  93         Episode.set_prefetched_soundfiles(soundfiles)
  94
  95         #context['futurEpisodes'] = context['episodes'].filter(first_diffusion='2013')[0:3]
  96
  97         return context
  98
  99
 100 class EmissionDetailView(DetailView, EmissionMixin):
 101     model = Emission
 102
 103     def get_context_data(self, **kwargs):
 104         context = super(EmissionDetailView, self).get_context_data(**kwargs)
 105         context['schedules'] = Schedule.objects.select_related().filter(
 106                 emission=self.object).order_by('rerun', 'datetime')
 107         context['news'] = NewsItem.objects.all(
 108                 ).filter(emission=self.object.id
 109                 ).exclude(expiration_date__lt=date.today()  # expiration date
 110                 ).exclude(date__lt=date.today() - timedelta(days=60)
 111                 ).order_by('-date')[:3]
 112         try:
 113             nonstop_object = Nonstop.objects.get(slug=self.object.slug)
 114         except Nonstop.DoesNotExist:
 115             pass
 116         else:
 117             today = date.today()
 118             dates = [today - timedelta(days=x) for x in range(7)]
 119             if datetime.now().time() < nonstop_object.start:
 120                 dates = dates[1:]
 121             context['nonstop'] = nonstop_object
 122             context['nonstop_dates'] = dates
 123         context.update(self.get_emission_context(self.object))
 124         return context
 125 emission = EmissionDetailView.as_view()
 126
 127
 128 class EpisodeDetailView(EmissionEpisodeMixin, DetailView, EmissionMixin):
 129     model = Episode
 130
 131     def get_context_data(self, **kwargs):
 132         context = super(EpisodeDetailView, self).get_context_data(**kwargs)
 133         context['diffusions'] = Diffusion.objects.select_related().filter(
 134                 episode=self.object.id).order_by('datetime')
 135         try:
 136             context['emission'] = context['episode'].emission
 137         except Emission.DoesNotExist:
 138             raise Http404()
 139         if self.kwargs.get('emission_slug') != context['emission'].slug:
 140             raise Http404()
 141         context.update(self.get_emission_context(context['emission']))
 142         context['topik_pages'] = [x.page for x in ItemTopik.objects.filter(episode=self.object)]
 143         return context
 144
 145
 146 episode = EpisodeDetailView.as_view()
 147
 148
 149 class NonstopPlaylistView(TemplateView):
 150     template_name = 'nonstop_playlist.html'
 151
 152     def get_context_data(self, **kwargs):
 153         context = super(NonstopPlaylistView, self).get_context_data(**kwargs)
 154         try:
 155             context['emission'] = Emission.objects.get(slug=kwargs.get('slug'))
 156         except Emission.DoesNotExist:
 157             raise Http404()
 158         context['date'] = date(int(kwargs.get('year')),
 159                 int(kwargs.get('month')), int(kwargs.get('day')))
 160         context['future'] = (context['date'] >= date.today())
 161
 162         nonstop_object = Nonstop.objects.get(slug=kwargs.get('slug'))
 163         start = datetime(
 164                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 165                 nonstop_object.start.hour, nonstop_object.start.minute)
 166         end = datetime(
 167                 int(kwargs.get('year')), int(kwargs.get('month')), int(kwargs.get('day')),
 168                 nonstop_object.end.hour, nonstop_object.end.minute)
 169         if end < start:
 170             end = end + timedelta(days=1)
 171         context['tracks'] = SomaLogLine.objects.filter(
 172                 play_timestamp__gte=start,
 173                 play_timestamp__lte=end,
 174                 on_air=True).select_related()
 175         return context
 176
 177 nonstop_playlist = NonstopPlaylistView.as_view()
 178
 179 class EmissionEpisodesDetailView(DetailView, EmissionMixin):
 180     model = Emission
 181     template_name = 'emissions/episodes.html'
 182
 183     def get_context_data(self, **kwargs):
 184         context = super(EmissionEpisodesDetailView, self).get_context_data(**kwargs)
 185         context['schedules'] = Schedule.objects.select_related().filter(
 186                 emission=self.object).order_by('rerun', 'datetime')
 187
 188         context['search_query'] = self.request.GET.get('q')
 189         if context['search_query']:
 190             # query string
 191             sqs = SearchQuerySet().models(Episode).filter(
 192                     emission_slug_exact=self.object.slug, text=context['search_query'])
 193             episode_ids = [x.pk for x in sqs]
 194         else:
 195             episode_ids = None
 196
 197         context.update(self.get_emission_context(self.object, episode_ids=episode_ids))
 198         return context
 199 emissionEpisodes = EmissionEpisodesDetailView.as_view()
 200
 201
 202 class SoundFileEmbedView(DetailView):
 203     model = SoundFile
 204     template_name = 'soundfiles/embed.html'
 205
 206     def get_context_data(self, **kwargs):
 207         context = super(SoundFileEmbedView, self).get_context_data(**kwargs)
 208         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 209             raise Http404()
 210         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 211             raise Http404()
 212         context['episode'] = self.object.episode
 213         return context
 214 soundfile_embed = SoundFileEmbedView.as_view()
 215
 216
 217 class SoundFileDialogEmbedView(DetailView):
 218     model = SoundFile
 219     template_name = 'soundfiles/dialog-embed.html'
 220
 221     def get_context_data(self, **kwargs):
 222         context = super(SoundFileDialogEmbedView, self).get_context_data(**kwargs)
 223         if self.kwargs.get('episode_slug') != self.object.episode.slug:
 224             raise Http404()
 225         if self.kwargs.get('emission_slug') != self.object.episode.emission.slug:
 226             raise Http404()
 227         context['episode'] = self.object.episode
 228         return context
 229 soundfile_dlg_embed = SoundFileDialogEmbedView.as_view()
 230
 231
 232
 233 class ProgramView(TemplateView):
 234     template_name = 'program.html'
 235
 236     def get_context_data(self, year=None, week=None, **kwargs):
 237         context = super(ProgramView, self).get_context_data(**kwargs)
 238
 239         context['weekday'] = datetime.today().weekday()
 240
 241         context['week'] = week = int(week) if week is not None else datetime.today().isocalendar()[1]
 242         context['year'] = year = int(year) if year is not None else datetime.today().isocalendar()[0]
 243         context['week_first_day'] = utils.tofirstdayinisoweek(year, week)
 244         context['week_last_day'] = context['week_first_day'] + timedelta(days=6)
 245
 246         return context
 247
 248 program = ProgramView.as_view()
 249
 250 @python_2_unicode_compatible
 251 class TimeCell:
 252     nonstop = None
 253     w = 1
 254     h = 1
 255     time_label = None
 256
 257     def __init__(self, i, j):
 258         self.x = i
 259         self.y = j
 260         self.schedules = []
 261
 262     def add_schedule(self, schedule):
 263         end_time = schedule.datetime + timedelta(
 264                 minutes=schedule.get_duration())
 265         self.time_label = '%02d:%02d-%02d:%02d' % (
 266                 schedule.datetime.hour,
 267                 schedule.datetime.minute,
 268                 end_time.hour,
 269                 end_time.minute)
 270         self.schedules.append(schedule)
 271
 272     def sorted_schedules(self):
 273         return sorted(self.schedules, key=lambda x: x.week_sort_key())
 274
 275     def __str__(self):
 276         if self.schedules:
 277             return ', '.join([x.emission.title for x in self.schedules])
 278         else:
 279             return self.nonstop
 280
 281     def __eq__(self, other):
 282         return (force_text(self) == force_text(other) and self.time_label == other.time_label)
 283
 284
 285 class Grid(TemplateView):
 286     template_name = 'grid.html'
 287
 288     def get_context_data(self, **kwargs):
 289         context = super(Grid, self).get_context_data(**kwargs)
 290
 291         nb_lines = 2 * 24 # the cells are half hours
 292         grid = []
 293
 294         times = ['%02d:%02d' % (x/2, x%2*30) for x in range(nb_lines)]
 295         # start grid after the night programs
 296         times = times[2*Schedule.DAY_HOUR_START:] + times[:2*Schedule.DAY_HOUR_START]
 297
 298         nonstops = []
 299         for nonstop in Nonstop.objects.all():
 300             if nonstop.start == nonstop.end:
 301                 continue
 302             if nonstop.start < nonstop.end:
 303                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 304                                  nonstop.end.hour + nonstop.end.minute/60.,
 305                                  nonstop.title, nonstop.slug, nonstop])
 306             else:
 307                 # crossing midnight
 308                 nonstops.append([nonstop.start.hour + nonstop.start.minute/60.,
 309                                  24,
 310                                  nonstop.title, nonstop.slug, nonstop])
 311                 nonstops.append([0,
 312                                  nonstop.end.hour + nonstop.end.minute/60.,
 313                                  nonstop.title, nonstop.slug, nonstop])
 314         nonstops.sort()
 315
 316         for i in range(nb_lines):
 317             grid.append([])
 318             for j in range(7):
 319                 grid[-1].append(TimeCell(i, j))
 320
 321             nonstop = [x for x in nonstops if i>=x[0]*2 and i<x[1]*2][0]
 322             for time_cell in grid[-1]:
 323                 time_cell.nonstop = nonstop[2]
 324                 time_cell.nonstop_slug = nonstop[3]
 325                 time_cell.redirect_path = nonstop[4].redirect_path
 326                 if nonstop[1] == 5:
 327                     # the one ending at 5am will be cut down, so we inscribe
 328                     # its duration manually
 329                     time_cell.time_label = '%02d:00-%02d:00' % (
 330                             nonstop[0], nonstop[1])
 331
 332         for schedule in Schedule.objects.prefetch_related(
 333                 'emission__categories').select_related().order_by('datetime'):
 334             row_start = schedule.datetime.hour * 2 + \
 335                     int(math.ceil(schedule.datetime.minute / 30))
 336             day_no = schedule.get_weekday()
 337
 338             for step in range(int(math.ceil(schedule.get_duration() / 30.))):
 339                 if grid[(row_start+step)%nb_lines][day_no] is None:
 340                     grid[(row_start+step)%nb_lines][day_no] = TimeCell()
 341                 grid[(row_start+step)%nb_lines][day_no].add_schedule(schedule)
 342
 343         # start grid after the night programs
 344         grid = grid[2*Schedule.DAY_HOUR_START:] + grid[:2*Schedule.DAY_HOUR_START]
 345
 346         # look for the case where the same emission has different schedules for
 347         # the same time cell, for example if it lasts one hour the first week,
 348         # and two hours the third week.
 349         for i in range(nb_lines):
 350             grid[i] = [x for x in grid[i] if x is not None]
 351             for j, cell in enumerate(grid[i]):
 352                 if grid[i][j] is None:
 353                     continue
 354                 if len(grid[i][j].schedules) > 1:
 355                     time_cell_emissions = {}
 356                     for schedule in grid[i][j].schedules:
 357                         if not schedule.emission.id in time_cell_emissions:
 358                             time_cell_emissions[schedule.emission.id] = []
 359                         time_cell_emissions[schedule.emission.id].append(schedule)
 360                     for schedule_list in time_cell_emissions.values():
 361                         if len(schedule_list) == 1:
 362                             continue
 363                         # here it is, same cell, same emission, several
 364                         # schedules
 365                         schedule_list.sort(key=lambda x: x.get_duration())
 366
 367                         schedule = schedule_list[0]
 368                         end_time = schedule.datetime + timedelta(
 369                                 minutes=schedule.get_duration())
 370                         grid[i][j].time_label = '%02d:%02d-%02d:%02d' % (
 371                                 schedule.datetime.hour,
 372                                 schedule.datetime.minute,
 373                                 end_time.hour,
 374                                 end_time.minute)
 375
 376                         for schedule in schedule_list[1:]:
 377                             grid[i][j].schedules.remove(schedule)
 378                             end_time = schedule.datetime + timedelta(minutes=schedule.get_duration())
 379                             schedule_list[0].time_label_extra = ', -%02d:%02d %s' % (
 380                                     end_time.hour, end_time.minute, schedule.weeks_string)
 381
 382         # merge adjacent
 383
 384         # 1st thing is to merge cells on the same line, this will mostly catch
 385         # consecutive nonstop cells
 386         for i in range(nb_lines):
 387             for j, cell in enumerate(grid[i]):
 388                 if grid[i][j] is None:
 389                     continue
 390                 t = 1
 391                 try:
 392                     # if the cells are identical, they are removed from the
 393                     # grid, and current cell width is increased
 394                     while grid[i][j+t] == cell:
 395                         cell.w += 1
 396                         grid[i][j+t] = None
 397                         t += 1
 398                 except IndexError:
 399                     pass
 400
 401             # once we're done we remove empty cells
 402             grid[i] = [x for x in grid[i] if x is not None]
 403
 404         # 2nd thing is to merge cells vertically, this is emissions that last
 405         # for more than 30 minutes
 406         for i in range(nb_lines):
 407             grid[i] = [x for x in grid[i] if x is not None]
 408             for j, cell in enumerate(grid[i]):
 409                 if grid[i][j] is None:
 410                     continue
 411                 t = 1
 412                 try:
 413                     while True:
 414                         # we look if the next time cell has the same emissions
 415                         same_cell_below = [(bj, x) for bj, x in enumerate(grid[i+cell.h])
 416                                            if x == cell and x.y == cell.y and x.w == cell.w]
 417                         if same_cell_below:
 418                             # if the cell was identical, we remove it and
 419                             # increase current cell height
 420                             bj, same_cell_below = same_cell_below[0]
 421                             del grid[i+cell.h][bj]
 422                             cell.h += 1
 423                         else:
 424                             # if the cell is different, we have a closer look
 425                             # to it, so we can remove emissions that will
 426                             # already be mentioned in the current cell.
 427                             #
 428                             # For example:
 429                             #  - 7am30, seuls contre tout, 1h30
 430                             #  - 8am, du pied gauche & la voix de la rue, 1h
 431                             # should produce: (this is case A)
 432                             #  |      7:30-9:00      |
 433                             #  |  seuls contre tout  |
 434                             #  |---------------------|
 435                             #  |      8:00-9:00      |
 436                             #  |   du pied gauche    |
 437                             #  |  la voix de la rue  |
 438                             #
 439                             # On the other hand, if all three emissions started
 440                             # at 7am30, we want: (this is case B)
 441                             #  |      7:30-9:00      |
 442                             #  |  seuls contre tout  |
 443                             #  |   du pied gauche    |
 444                             #  |  la voix de la rue  |
 445                             # that is we merge all of them, ignoring the fact
 446                             # that the other emissions will stop at 8am30
 447                             current_cell_schedules = set(grid[i][j].schedules)
 448                             current_cell_emissions = set([x.emission for x in current_cell_schedules])
 449                             cursor = 1
 450                             while True and current_cell_schedules:
 451                                 same_cell_below = [x for x in grid[i+cursor] if x.y == grid[i][j].y]
 452                                 if not same_cell_below:
 453                                     cursor += 1
 454                                     continue
 455                                 same_cell_below = same_cell_below[0]
 456                                 same_cell_below_emissions = set([x.emission for x in same_cell_below.schedules])
 457
 458                                 if current_cell_emissions.issubset(same_cell_below_emissions):
 459                                     # this handles case A (see comment above)
 460                                     for schedule in current_cell_schedules:
 461                                         if schedule in same_cell_below.schedules:
 462                                             same_cell_below.schedules.remove(schedule)
 463                                 elif same_cell_below_emissions and \
 464                                         current_cell_emissions.issuperset(same_cell_below_emissions):
 465                                     # this handles case B (see comment above)
 466                                     # we set the cell time label to the longest
 467                                     # period
 468                                     grid[i][j].time_label = same_cell_below.time_label
 469                                     # then we sort emissions so the longest are
 470                                     # put first
 471                                     grid[i][j].schedules.sort(key=lambda x: -x.get_duration())
 472                                     # then we add individual time labels to the
 473                                     # other schedules
 474                                     for schedule in current_cell_schedules:
 475                                         if schedule not in same_cell_below.schedules:
 476                                             end_time = schedule.datetime + timedelta(
 477                                                     minutes=schedule.get_duration())
 478                                             schedule.time_label = '%02d:%02d-%02d:%02d' % (
 479                                                     schedule.datetime.hour,
 480                                                     schedule.datetime.minute,
 481                                                     end_time.hour,
 482                                                     end_time.minute)
 483                                     grid[i][j].h += 1
 484                                     grid[i+cursor].remove(same_cell_below)
 485                                 elif same_cell_below_emissions and \
 486                                         current_cell_emissions.intersection(same_cell_below_emissions):
 487                                     same_cell_below.schedules = [x for x in
 488                                             same_cell_below.schedules if
 489                                             x.emission not in
 490                                             current_cell_emissions or
 491                                             x.get_duration() < 30]
 492                                 cursor += 1
 493                             break
 494                 except IndexError:
 495                     pass
 496
 497         # cut night at 3am
 498         grid = grid[:42]
 499         times = times[:42]
 500
 501         context['grid'] = grid
 502         context['times'] = times
 503         context['categories'] = Category.objects.all()
 504         context['weekdays'] = ['Lundi', 'Mardi', 'Mercredi', 'Jeudi',
 505                 'Vendredi', 'Samedi', 'Dimanche']
 506
 507         return context
 508
 509 grid = Grid.as_view()
 510
 511
 512 class Home(TemplateView):
 513     template_name = 'home.html'
 514
 515     def get_context_data(self, **kwargs):
 516         context = super(Home, self).get_context_data(**kwargs)
 517         context['emissions'] = Emission.objects.filter(archived=False).order_by('-creation_timestamp')[:3]
 518         context['newsitems'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')[:3]
 519
 520         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 521                 podcastable=True, fragment=False) \
 522                 .select_related().extra(select={
 523                     'first_diffusion': 'emissions_diffusion.datetime', },
 524                     select_params=(False, True),
 525                     where=['''datetime = (SELECT MIN(datetime)
 526                                             FROM emissions_diffusion
 527                                         WHERE episode_id = emissions_episode.id)'''],
 528                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct() [:3]
 529
 530         context['newsletter_form'] = SubscribeForm()
 531
 532         return context
 533
 534 home = Home.as_view()
 535
 536
 537 class NewsItemView(DetailView):
 538     model = NewsItem
 539
 540     def get_context_data(self, **kwargs):
 541         context = super(NewsItemView, self).get_context_data(**kwargs)
 542         context['categories'] = NewsCategory.objects.all()
 543         context['news'] = NewsItem.objects.all().order_by('-date')
 544         context['topik_pages'] = [x.page for x in ItemTopik.objects.filter(newsitem=self.object)]
 545         return context
 546
 547
 548 newsitemview = NewsItemView.as_view()
 549
 550
 551 class News(TemplateView):
 552     template_name = 'news.html'
 553     def get_context_data(self, **kwargs):
 554         context = super(News, self).get_context_data(**kwargs)
 555         context['focus'] = NewsItem.objects.exclude(date__gt=date.today()  # publication date
 556                 ).exclude(expiration_date__lt=date.today()  # expiration date
 557                 ).filter(got_focus__isnull=False
 558                 ).select_related('category').order_by('-date')[:10]
 559         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 560         return context
 561
 562 news = News.as_view()
 563
 564
 565 class Agenda(TemplateView):
 566     template_name = 'agenda.html'
 567     def get_context_data(self, **kwargs):
 568         context = super(Agenda, self).get_context_data(**kwargs)
 569         context['agenda'] = NewsItem.objects.exclude(date__gt=date.today()).filter(
 570                 event_date__gte=date.today()).order_by('date')[:20]
 571         context['news'] = NewsItem.objects.exclude(date__gt=date.today()).order_by('-date')
 572         context['previous_month'] = datetime.today().replace(day=1) - timedelta(days=2)
 573         return context
 574
 575 agenda = Agenda.as_view()
 576
 577
 578 class AgendaByMonth(MonthArchiveView):
 579     template_name = 'agenda.html'
 580     queryset = NewsItem.objects.filter(event_date__isnull=False)
 581     allow_future = True
 582     date_field = 'event_date'
 583     month_format = '%m'
 584
 585     def get_context_data(self, **kwargs):
 586         context = super(AgendaByMonth, self).get_context_data(**kwargs)
 587         context['agenda'] = context['object_list']
 588         context['news'] = NewsItem.objects.all().order_by('-date')
 589         return context
 590
 591 agenda_by_month = AgendaByMonth.as_view()
 592
 593
 594 class Emissions(TemplateView):
 595     template_name = 'emissions.html'
 596
 597     def get_context_data(self, **kwargs):
 598         context = super(Emissions, self).get_context_data(**kwargs)
 599         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=False).order_by('title')
 600         context['categories'] = Category.objects.all()
 601         return context
 602
 603 emissions = Emissions.as_view()
 604
 605 class EmissionsArchives(TemplateView):
 606     template_name = 'emissions/archives.html'
 607
 608     def get_context_data(self, **kwargs):
 609         context = super(EmissionsArchives, self).get_context_data(**kwargs)
 610         context['emissions'] = Emission.objects.prefetch_related('categories').filter(archived=True).order_by('title')
 611         context['categories'] = Category.objects.all()
 612         return context
 613 emissionsArchives = EmissionsArchives.as_view()
 614
 615
 616 class Listen(TemplateView):
 617     template_name = 'listen.html'
 618
 619     def get_context_data(self, **kwargs):
 620         context = super(Listen, self).get_context_data(**kwargs)
 621         context['focus'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 622                 podcastable=True, got_focus__isnull=False) \
 623                 .select_related().extra(select={
 624                     'first_diffusion': 'emissions_diffusion.datetime', },
 625                     select_params=(False, True),
 626                     where=['''datetime = (SELECT MIN(datetime)
 627                                             FROM emissions_diffusion
 628                                         WHERE episode_id = emissions_episode.id)'''],
 629                     tables=['emissions_diffusion'],).order_by('-first_diffusion').distinct() [:10]
 630         context['soundfiles'] = SoundFile.objects.prefetch_related('episode__emission__categories').filter(
 631                 podcastable=True) \
 632                 .select_related().extra(select={
 633                     'first_diffusion': 'emissions_diffusion.datetime', },
 634                     select_params=(False, True),
 635                     where=['''datetime = (SELECT MIN(datetime)
 636                                             FROM emissions_diffusion
 637                                         WHERE episode_id = emissions_episode.id)'''],
 638                     tables=['emissions_diffusion'],).order_by('-creation_timestamp').distinct()
 639
 640
 641         return context
 642
 643 listen = Listen.as_view()
 644
 645 @cache_control(max_age=15)
 646 @csrf_exempt
 647 def onair(request):
 648     d = whatsonair()
 649     if d.get('episode'):
 650         d['episode'] = {
 651             'title': d['episode'].title,
 652             'url': d['episode'].get_absolute_url()
 653         }
 654     if d.get('emission'):
 655         chat_url = None
 656         if d['emission'].chat_open:
 657             chat_url = reverse('emission-chat', kwargs={'slug': d['emission'].slug})
 658         d['emission'] = {
 659             'title': d['emission'].title,
 660             'url': d['emission'].get_absolute_url(),
 661             'chat': chat_url,
 662         }
 663     if d.get('nonstop'):
 664         redirect_path = d['nonstop'].redirect_path
 665         d['nonstop'] = {
 666             'title': d['nonstop'].title,
 667         }
 668         if redirect_path:
 669             d['nonstop']['url'] = redirect_path
 670         d.update(get_current_nonstop_track())
 671     if d.get('current_slot'):
 672         del d['current_slot']
 673     return JsonResponse({'data': d})
 674
 675
 676 class NewsItemDetailView(DetailView):
 677     model = NewsItem
 678
 679 newsitem = NewsItemDetailView.as_view()
 680
 681 class RssCustomPodcastsFeed(Rss201rev2Feed):
 682     def add_root_elements(self, handler):
 683         super(RssCustomPodcastsFeed, self).add_root_elements(handler)
 684         emission = self.feed.get('emission')
 685         if emission and emission.image and emission.image.url:
 686             image_url = emission.image.url
 687         else:
 688             image_url = '/static/img/logo-panik-500.png'
 689         image_url = urlparse.urljoin(self.feed['link'], image_url)
 690         handler.startElement('image', {})
 691         if emission:
 692             handler.addQuickElement('title', emission.title)
 693         else:
 694             handler.addQuickElement('title', settings.RADIO_NAME)
 695         handler.addQuickElement('url', image_url)
 696         handler.endElement('image')
 697         handler.addQuickElement('itunes:explicit', 'no')  # invidividual items will get their own value
 698         handler.addQuickElement('itunes:image', None, {'href': image_url})
 699         if emission:
 700             if emission.subtitle:
 701                 handler.addQuickElement('itunes:subtitle', emission.subtitle)
 702             for category in emission.categories.all():
 703                 if category.itunes_category:
 704                     handler.addQuickElement('itunes:category', None, {'text': category.itunes_category})
 705
 706             handler.addQuickElement('itunes:author', emission.title)
 707             handler.startElement('itunes:owner', {})
 708             if emission.email:
 709                 handler.addQuickElement('itunes:email', emission.email)
 710             handler.addQuickElement('itunes:name', emission.title)
 711             handler.endElement('itunes:owner')
 712         else:
 713             handler.addQuickElement('itunes:author', settings.RADIO_NAME)
 714             handler.startElement('itunes:owner', {})
 715             handler.addQuickElement('itunes:email', 'info@radiopanik.org')
 716             handler.addQuickElement('itunes:name', settings.RADIO_NAME)
 717             handler.endElement('itunes:owner')
 718
 719     def root_attributes(self):
 720         attrs = super(RssCustomPodcastsFeed, self).root_attributes()
 721         attrs['xmlns:dc'] = 'http://purl.org/dc/elements/1.1/'
 722         attrs['xmlns:itunes'] = 'http://www.itunes.com/dtds/podcast-1.0.dtd'
 723         return attrs
 724
 725     def add_item_elements(self, handler, item):
 726         super(RssCustomPodcastsFeed, self).add_item_elements(handler, item)
 727         explicit = 'no'
 728         for tag in item.get('tags') or []:
 729             handler.addQuickElement('dc:subject', tag)
 730             if tag == 'explicit':
 731                 explicit = 'yes'
 732         if item.get('tags'):
 733             handler.addQuickElement('itunes:keywords', ','.join(item.get('tags')))
 734         handler.addQuickElement('itunes:explicit', explicit)
 735         episode = item.get('episode')
 736         if episode and episode.image and episode.image.url:
 737             image_url = urlparse.urljoin(self.feed['link'], episode.image.url)
 738             handler.addQuickElement('itunes:image', None, {'href': image_url})
 739         soundfile = item.get('soundfile')
 740         if soundfile.duration:
 741             handler.addQuickElement('itunes:duration', '%02d:%02d:%02d' % (
 742                 soundfile.duration / 3600,
 743                 soundfile.duration % 3600 / 60,
 744                 soundfile.duration % 60))
 745
 746
 747 class PodcastsFeed(Feed):
 748     title = '%s - Podcasts' % settings.RADIO_NAME
 749     link = '/'
 750     description_template = 'feed/soundfile.html'
 751     feed_type = RssCustomPodcastsFeed
 752
 753     def items(self):
 754         return SoundFile.objects.select_related().filter(
 755                 podcastable=True).order_by('-creation_timestamp')[:50]
 756
 757     def item_title(self, item):
 758         if item.fragment:
 759             return '[%s] %s - %s' % (item.episode.emission.title, item.title, item.episode.title)
 760         return '[%s] %s' % (item.episode.emission.title, item.episode.title)
 761
 762     def item_link(self, item):
 763         if item.fragment:
 764             return item.episode.get_absolute_url() + '#%s' % item.id
 765         return item.episode.get_absolute_url()
 766
 767     def item_enclosure_url(self, item):
 768         current_site = Site.objects.get(id=settings.SITE_ID)
 769         return add_domain(current_site.domain, item.get_format_url('mp3'))
 770
 771     def item_enclosure_length(self, item):
 772         sound_path = item.get_format_path('mp3')
 773         try:
 774             return os.stat(sound_path)[stat.ST_SIZE]
 775         except OSError:
 776             return 0
 777
 778     def item_enclosure_mime_type(self, item):
 779         return 'audio/mpeg'
 780
 781     def item_pubdate(self, item):
 782         return item.creation_timestamp
 783
 784     def item_extra_kwargs(self, item):
 785         return {'tags': [x.name for x in item.episode.tags.all()],
 786                 'soundfile': item,
 787                 'episode': item.episode}
 788
 789 podcasts_feed = PodcastsFeed()
 790
 791
 792 class RssNewsFeed(Feed):
 793     title = settings.RADIO_NAME
 794     link = '/news/'
 795     description_template = 'feed/newsitem.html'
 796
 797     def items(self):
 798         return NewsItem.objects.order_by('-date')[:20]
 799
 800 rss_news_feed = RssNewsFeed()
 801
 802 class Atom1FeedWithBaseXml(Atom1Feed):
 803     def root_attributes(self):
 804         root_attributes = super(Atom1FeedWithBaseXml, self).root_attributes()
 805         scheme, netloc, path, params, query, fragment  = urlparse.urlparse(self.feed['feed_url'])
 806         root_attributes['xml:base'] = urlparse.urlunparse((scheme, netloc, '/', params, query, fragment))
 807         return root_attributes
 808
 809 class AtomNewsFeed(RssNewsFeed):
 810     feed_type = Atom1FeedWithBaseXml
 811
 812 atom_news_feed = AtomNewsFeed()
 813
 814
 815 class EmissionPodcastsFeed(PodcastsFeed):
 816     description_template = 'feed/soundfile.html'
 817     feed_type = RssCustomPodcastsFeed
 818
 819     def __call__(self, request, *args, **kwargs):
 820         self.emission = Emission.objects.get(slug=kwargs.get('slug'))
 821         return super(EmissionPodcastsFeed, self).__call__(request, *args, **kwargs)
 822
 823     def item_title(self, item):
 824         if item.fragment:
 825             return '%s - %s' % (item.title, item.episode.title)
 826         return item.episode.title
 827
 828     @property
 829     def title(self):
 830         return self.emission.title
 831
 832     @property
 833     def description(self):
 834         return self.emission.subtitle
 835
 836     @property
 837     def link(self):
 838         return reverse('emission-view', kwargs={'slug': self.emission.slug})
 839
 840     def feed_extra_kwargs(self, obj):
 841         return {'emission': self.emission}
 842
 843     def items(self):
 844         return SoundFile.objects.select_related().filter(
 845                 podcastable=True,
 846                 episode__emission__slug=self.emission.slug).order_by('-creation_timestamp')[:50]
 847
 848 emission_podcasts_feed = EmissionPodcastsFeed()
 849
 850
 851 class Party(TemplateView):
 852     template_name = 'party.html'
 853
 854     def get_context_data(self, **kwargs):
 855         context = super(Party, self).get_context_data(**kwargs)
 856         t = random.choice(['newsitem']*2 + ['emission']*3 + ['soundfile']*1 + ['episode']*2)
 857         focus = Focus()
 858         if t == 'newsitem':
 859             focus.newsitem = NewsItem.objects.exclude(
 860                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 861         elif t == 'emission':
 862             focus.emission = Emission.objects.exclude(
 863                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 864         elif t == 'episode':
 865             focus.episode = Episode.objects.exclude(
 866                     image__isnull=True).exclude(image__exact='').order_by('?')[0]
 867         elif t == 'soundfile':
 868             focus.soundfile = SoundFile.objects.exclude(
 869                     episode__image__isnull=True).exclude(episode__image__exact='').order_by('?')[0]
 870
 871         context['focus'] = focus
 872
 873         return context
 874
 875 party = Party.as_view()
 876
 877
 878
 879 class Chat(DetailView, EmissionMixin):
 880     model = Emission
 881     template_name = 'chat.html'
 882
 883 chat = cache_control(max_age=15)(Chat.as_view())