lemoncurry/wellknowns/views/manifest.py

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from django.http import JsonResponse
from django.urls import reverse
from favicon.models import FaviconImg
from lemoncurry import utils
from lemoncurry.theme import color
from urllib.parse import urljoin
from textwrap import shorten
def manifest(request):
base = utils.origin(request)
start_url = reverse('home:index') + '?utm_source=homescreen'
app = {
'name': request.site.name,
'short_name': shorten(request.site.name, width=20, placeholder=''),
'display': 'browser',
'start_url': urljoin(base, start_url),
'background_color': color(0),
'theme_color': color(2),
}
rels = ('shortcut icon', 'apple-touch-icon')
icons = FaviconImg.objects.filter(
faviconFK__isFavicon=True,
rel__in=rels,
).order_by('size')
app['icons'] = [{
'type': 'image/png',
'sizes': '{0}x{0}'.format(icon.size),
'src': urljoin(base, icon.faviconImage.url),
} for icon in icons]
return JsonResponse(app, content_type='application/manifest+json')