mirror of
https://gitlab.science.ru.nl/technicie/MarietjeDjango.git
synced 2025-12-09 22:12:22 +01:00
301 lines
9.4 KiB
Python
301 lines
9.4 KiB
Python
import time
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from functools import wraps
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import django.middleware.csrf as csrf
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from django.contrib.auth import authenticate, login
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from django.core.paginator import Paginator, EmptyPage, PageNotAnInteger
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from django.db import transaction
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from django.db.models import Q, Sum, Value
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from django.db.models.functions import Coalesce
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from django.http import JsonResponse, HttpResponseForbidden
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from django.shortcuts import get_object_or_404
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from django.views.decorators.http import require_http_methods
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from django.conf import settings
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from mutagen import File
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from marietje.utils import song_to_dict, playlist_song_to_dict, send_to_bertha
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from queues.models import PlaylistSong, QueueCommand
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from songs.models import Song
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def api_auth_required(view_func):
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@wraps(view_func)
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def _wrapped_view(request, *args, **kwargs):
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if request.user.is_authenticated and request.user.is_active:
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return view_func(request, *args, **kwargs)
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response = JsonResponse({
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'error': 'User not authenticated or activated.'
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})
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response.status_code = 401
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return response
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return _wrapped_view
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def login_user(request):
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data = {'error': 'Method not allowed'}
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status = 405
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if request.method == "POST":
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username = request.POST.get('username', '').strip()
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password = request.POST.get('password', '').strip()
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data = {'error': 'Please enter a correct username and password. '
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'Note that both fields may be case-sensitive.'}
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status = 401
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if username and password:
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user = authenticate(username=username, password=password)
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if user is not None:
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if user.is_active:
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login(request, user)
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data = {}
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status = 200
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else:
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data = {'error': 'User is not active'}
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status = 401
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else:
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csrf.get_token(request)
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response = JsonResponse(data)
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response.status_code = status
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return response
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@api_auth_required
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def permissions(request):
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return JsonResponse({
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'can_move': request.user.has_perm('queues.can_move'),
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'can_skip': request.user.has_perm('queues.can_skip'),
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'can_cancel': request.user.has_perm('queues.can_cancel'),
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'can_control_volume': request.user.has_perm('queues.can_control_volume')
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})
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@api_auth_required
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def songs(request):
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try:
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pagesize = int(request.POST.get('pagesize'))
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except:
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pagesize = 10
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if not pagesize or pagesize < 10:
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pagesize = 10
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try:
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page = int(request.POST.get('page'))
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except:
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page = 1
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queries = [Q(deleted=False)]
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queries.extend([Q(Q(artist__icontains=word) | Q(title__icontains=word)) for word in request.POST.get('all', '').split()])
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queries.extend([Q(user__name__icontains=word) for word in request.POST.get('uploader', '').split()])
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filter_query = queries.pop()
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for query in queries:
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filter_query &= query
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songs_query = Song.objects.filter(filter_query).order_by('artist', 'title').select_related('user')
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paginator = Paginator(songs_query, pagesize)
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try:
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songs = paginator.page(page)
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except PageNotAnInteger:
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songs = paginator.page(1)
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except EmptyPage:
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songs = paginator.page(paginator.num_pages)
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songs_dict = [song_to_dict(song, user=True) for song in songs.object_list]
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return JsonResponse({
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'per_page': pagesize,
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'current_page': page,
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'last_page': paginator.num_pages,
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'data': songs_dict
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})
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@api_auth_required
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def managesongs(request):
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try:
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pagesize = int(request.POST.get('pagesize'))
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except:
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pagesize = 10
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if not pagesize or pagesize < 10:
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pagesize = 10
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try:
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page = int(request.POST.get('page'))
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except:
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page = 1
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songs_query = Song.objects.filter(
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user=request.user, deleted=False,
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artist__icontains=request.POST.get('artist', ''),
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title__icontains=request.POST.get('title', '')
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).order_by('artist', 'title')
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total = songs_query.count()
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paginator = Paginator(songs_query, pagesize)
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try:
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songs = paginator.page(page)
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except PageNotAnInteger:
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songs = paginator.page(1)
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except EmptyPage:
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songs = paginator.page(paginator.num_pages)
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songs_dict = [song_to_dict(song) for song in songs.object_list]
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return JsonResponse({
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'total': total,
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'per_page': pagesize,
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'current_page': page,
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'last_page': paginator.num_pages,
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'data': songs_dict
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})
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@api_auth_required
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def queue(request):
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queue = request.user.queue
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return JsonResponse({
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'current_song': playlist_song_to_dict(queue.current_song()),
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'queue': [playlist_song_to_dict(playlist_song, user=request.user) for playlist_song in queue.queue()],
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'started_at': 0 if queue.started_at is None else int(queue.started_at.timestamp()),
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'current_time': int(time.time())
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})
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@api_auth_required
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def skip(request):
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playlist_song = request.user.queue.current_song()
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if playlist_song.user != request.user and not request.user.has_perm('queues.can_skip'):
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return HttpResponseForbidden()
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playlist_song.state = 2
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playlist_song.save()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def move_up(request):
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if not request.user.has_perm('queues.can_move'):
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return HttpResponseForbidden()
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playlist_song = get_object_or_404(PlaylistSong, id=request.POST.get('id'))
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playlist_song.move_up()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def move_down(request):
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playlist_song = get_object_or_404(PlaylistSong, id=request.POST.get('id'))
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if playlist_song.user != request.user and not request.user.has_perm('queues.can_move'):
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return HttpResponseForbidden()
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playlist_song.move_down()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def cancel(request):
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playlist_song = get_object_or_404(PlaylistSong, id=request.POST.get('id'))
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if playlist_song.user != request.user and not request.user.has_perm('queues.can_cancel'):
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return HttpResponseForbidden()
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playlist_song.state = 3
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playlist_song.save()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def request(request):
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queue = request.user.queue
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song = get_object_or_404(Song, id=request.POST.get('id'), deleted=False)
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if queue.request(song, request.user):
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return JsonResponse({
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'success': True
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})
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return JsonResponse({
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'success': False,
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'message': 'You cannot request more than ' + str(settings.MAX_MINUTES_IN_A_ROW) + ' minutes in a row.'
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})
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@require_http_methods(["POST"])
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@api_auth_required
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def upload(request):
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files = request.FILES.getlist('file[]')
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artists = request.POST.getlist('artist[]')
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titles = request.POST.getlist('title[]')
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for artist in artists:
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if not artist:
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return JsonResponse({'success': False, 'errorMessage': 'Please enter artists which are not empty.'})
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for title in titles:
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if not title:
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return JsonResponse({'success': False, 'errorMessage': 'Please enter titles which are not empty.'})
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# Allow upload if the user has a good reputation
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# Score function:
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# - U = duration * songs uploaded
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# - Q = duration * songs queued
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# - If 3*U < Q: allow upload (otherwise don't)
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stats = upload_stats(request.user)
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ratio = stats['minutes_queued'] / (3.0 * stats['minutes_upload'])
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if not request.user.is_superuser and ratio < 1.0:
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msg = 'Queue-to-upload ratio too high. Please queue some more before uploading. ({:.2f})'
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return JsonResponse({'success': False, 'errorMessage': msg.format(ratio)})
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for i, file in enumerate(files):
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duration = File(file).info.length
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hash = send_to_bertha(file)
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if not hash:
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return JsonResponse({'success': False, 'errorMessage': 'Files not uploaded correctly.'})
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song = Song(user=request.user, artist=artists[i], title=titles[i], hash=hash, duration=duration)
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song.save()
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return JsonResponse({'success': True})
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@require_http_methods(["POST"])
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@api_auth_required
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def volume_down(request):
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if not request.user.has_perm('queues.can_control_volume'):
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return HttpResponseForbidden()
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command = QueueCommand(queue=request.user.queue, command='volume_down')
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command.save()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def volume_up(request):
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if not request.user.has_perm('queues.can_control_volume'):
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return HttpResponseForbidden()
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command = QueueCommand(queue=request.user.queue, command='volume_up')
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command.save()
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return JsonResponse({})
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@require_http_methods(["POST"])
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@api_auth_required
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def mute(request):
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if not request.user.has_perm('queues.can_control_volume'):
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return HttpResponseForbidden()
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command = QueueCommand(queue=request.user.queue, command='mute')
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command.save()
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return JsonResponse({})
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@transaction.atomic
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def upload_stats(user):
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q = PlaylistSong.objects.filter(user=user, song__deleted=False).aggregate(
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minutes_queued=Coalesce(Sum('song__duration'), Value(0)))
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q.update(Song.objects.filter(user=user, deleted=False).aggregate(
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minutes_upload=Coalesce(Sum('duration'), Value(0))))
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return q
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