forked from CGM_Public/pretix_original
* Vendor vue.js * Refactor item_group_by_category to support vouchers * Widget: Show product list * Widget: free prices * Widget: pictures and loading indicator * Widget: First iframe steps * Widget: Do not rerender iframe * Widget: Error handling * Improve widget * Widget: localization tech * Fix invoice style * Voucher attribute and waiting list * Add some iframe chrome * First step to namespaced carts * More isolation steps * More cart isolation things * More cart isolation things * Mobile stuff * Show cart on checkout pages * PayPal and Stripe support * Enable downloads * Locale handling * change text "save URL to this exact page" * Widget: voucher redemption * Widget: CSS * CSS: Responsive * Widget: CSS improvements * Widget: Add embedding code generator * Widget: Error messages and SSL check * First tests * Widget: tests * Don't use IDs in widgets * Widget: static files caching
This commit is contained in:
Raphael Michel
274
src/pretix/presale/views/widget.py
Normal file
274
src/pretix/presale/views/widget.py
Normal file
@@ -0,0 +1,274 @@
|
||||
import hashlib
|
||||
import json
|
||||
from urllib.parse import urljoin
|
||||
|
||||
from django.conf import settings
|
||||
from django.contrib.staticfiles import finders
|
||||
from django.core.files.base import ContentFile
|
||||
from django.core.files.storage import default_storage
|
||||
from django.db.models import Q
|
||||
from django.http import FileResponse, Http404, HttpResponse, JsonResponse
|
||||
from django.template import Context, Engine
|
||||
from django.template.loader import get_template
|
||||
from django.utils.formats import date_format
|
||||
from django.utils.timezone import now
|
||||
from django.views import View
|
||||
from django.views.decorators.cache import cache_page
|
||||
from django.views.decorators.http import condition
|
||||
from django.views.i18n import (
|
||||
get_formats, get_javascript_catalog, js_catalog_template,
|
||||
)
|
||||
from easy_thumbnails.files import get_thumbnailer
|
||||
from lxml import etree
|
||||
|
||||
from pretix.base.i18n import language
|
||||
from pretix.base.models import CartPosition, Voucher
|
||||
from pretix.base.services.cart import error_messages
|
||||
from pretix.base.settings import GlobalSettingsObject
|
||||
from pretix.base.templatetags.rich_text import rich_text
|
||||
from pretix.presale.views.cart import get_or_create_cart_id
|
||||
from pretix.presale.views.event import (
|
||||
get_grouped_items, item_group_by_category,
|
||||
)
|
||||
|
||||
|
||||
def indent(s):
|
||||
return s.replace('\n', '\n ')
|
||||
|
||||
|
||||
def widget_css_etag(request, **kwargs):
|
||||
return request.event.settings.presale_widget_css_checksum or request.organizer.settings.presale_widget_css_checksum
|
||||
|
||||
|
||||
def widget_js_etag(request, lang, **kwargs):
|
||||
gs = GlobalSettingsObject()
|
||||
return gs.settings.get('widget_checksum_{}'.format(lang))
|
||||
|
||||
|
||||
@condition(etag_func=widget_css_etag)
|
||||
@cache_page(60)
|
||||
def widget_css(request, **kwargs):
|
||||
if request.event.settings.presale_widget_css_file:
|
||||
resp = FileResponse(default_storage.open(request.event.settings.presale_widget_css_file),
|
||||
content_type='text/css')
|
||||
return resp
|
||||
else:
|
||||
tpl = get_template('pretixpresale/widget_dummy.html')
|
||||
et = etree.fromstring(tpl.render({})).attrib['href'].replace(settings.STATIC_URL, '')
|
||||
f = finders.find(et)
|
||||
resp = FileResponse(open(f, 'rb'), content_type='text/css')
|
||||
return resp
|
||||
|
||||
|
||||
def generate_widget_js(lang):
|
||||
code = []
|
||||
with language(lang):
|
||||
# Provide isolation
|
||||
code.append('(function (siteglobals) {\n')
|
||||
code.append('var module = {}, exports = {};\n')
|
||||
code.append('var lang = "%s";\n' % lang)
|
||||
|
||||
catalog, plural = get_javascript_catalog(lang, 'djangojs', ['pretix'])
|
||||
catalog = dict((k, v) for k, v in catalog.items() if k.startswith('widget\u0004'))
|
||||
template = Engine().from_string(js_catalog_template)
|
||||
context = Context({
|
||||
'catalog_str': indent(json.dumps(
|
||||
catalog, sort_keys=True, indent=2)) if catalog else None,
|
||||
'formats_str': indent(json.dumps(
|
||||
get_formats(), sort_keys=True, indent=2)),
|
||||
'plural': plural,
|
||||
})
|
||||
code.append(template.render(context))
|
||||
|
||||
files = [
|
||||
'vuejs/vue.js' if settings.DEBUG else 'vuejs/vue.min.js',
|
||||
'pretixpresale/js/widget/docready.js',
|
||||
'pretixpresale/js/widget/floatformat.js',
|
||||
'pretixpresale/js/widget/widget.js',
|
||||
]
|
||||
for fname in files:
|
||||
f = finders.find(fname)
|
||||
with open(f, 'r') as fp:
|
||||
code.append(fp.read())
|
||||
|
||||
if settings.DEBUG:
|
||||
code.append('})(this);\n')
|
||||
else:
|
||||
# Do not expose debugging variables
|
||||
code.append('})({});\n')
|
||||
return ''.join(code)
|
||||
|
||||
|
||||
@condition(etag_func=widget_js_etag)
|
||||
@cache_page(60)
|
||||
def widget_js(request, lang, **kwargs):
|
||||
if lang not in [lc for lc, ll in settings.LANGUAGES]:
|
||||
raise Http404()
|
||||
|
||||
gs = GlobalSettingsObject()
|
||||
fname = gs.settings.get('widget_file_{}'.format(lang))
|
||||
print(fname, settings.DEBUG)
|
||||
if not fname or settings.DEBUG:
|
||||
data = generate_widget_js(lang).encode()
|
||||
checksum = hashlib.sha1(data).hexdigest()
|
||||
if not fname:
|
||||
newname = default_storage.save(
|
||||
'widget/widget.{}.{}.js'.format(lang, checksum),
|
||||
ContentFile(data)
|
||||
)
|
||||
gs.settings.set('widget_file_{}'.format(lang), 'file://' + newname)
|
||||
gs.settings.set('widget_checksum_{}'.format(lang), checksum)
|
||||
resp = HttpResponse(data, content_type='text/javascript')
|
||||
else:
|
||||
resp = FileResponse(default_storage.open(fname), content_type='text/javascript')
|
||||
return resp
|
||||
|
||||
|
||||
def price_dict(price):
|
||||
return {
|
||||
'gross': price.gross,
|
||||
'net': price.net,
|
||||
'tax': price.tax,
|
||||
'rate': price.rate,
|
||||
'name': str(price.name)
|
||||
}
|
||||
|
||||
|
||||
def get_picture(picture):
|
||||
thumb = get_thumbnailer(picture)['productlist']
|
||||
return urljoin(settings.SITE_URL, thumb.url)
|
||||
|
||||
|
||||
class WidgetAPIProductList(View):
|
||||
|
||||
def _get_items(self):
|
||||
items, display_add_to_cart = get_grouped_items(
|
||||
self.request.event, subevent=self.subevent, voucher=self.voucher
|
||||
)
|
||||
grps = []
|
||||
for cat, g in item_group_by_category(items):
|
||||
grps.append({
|
||||
'id': cat.pk if cat else None,
|
||||
'name': str(cat.name) if cat else None,
|
||||
'description': str(rich_text(cat.description, safelinks=False)) if cat and cat.description else None,
|
||||
'items': [
|
||||
{
|
||||
'id': item.pk,
|
||||
'name': str(item.name),
|
||||
'picture': get_picture(item.picture) if item.picture else None,
|
||||
'description': str(rich_text(item.description, safelinks=False)) if item.description else None,
|
||||
'has_variations': item.has_variations,
|
||||
'require_voucher': item.require_voucher,
|
||||
'order_min': item.min_per_order,
|
||||
'order_max': item.order_max if not item.has_variations else None,
|
||||
'price': price_dict(item.display_price) if not item.has_variations else None,
|
||||
'min_price': item.min_price if item.has_variations else None,
|
||||
'max_price': item.max_price if item.has_variations else None,
|
||||
'free_price': item.free_price,
|
||||
'avail': [
|
||||
item.cached_availability[0],
|
||||
item.cached_availability[1] if self.request.event.settings.show_quota_left else None
|
||||
] if not item.has_variations else None,
|
||||
'variations': [
|
||||
{
|
||||
'id': var.id,
|
||||
'value': str(var.value),
|
||||
'order_max': var.order_max,
|
||||
'description': str(rich_text(var.description, safelinks=False)) if var.description else None,
|
||||
'price': price_dict(var.display_price),
|
||||
'avail': [
|
||||
var.cached_availability[0],
|
||||
var.cached_availability[1] if self.request.event.settings.show_quota_left else None
|
||||
],
|
||||
} for var in item.available_variations
|
||||
]
|
||||
|
||||
} for item in g
|
||||
]
|
||||
})
|
||||
return grps, display_add_to_cart
|
||||
|
||||
def dispatch(self, request, *args, **kwargs):
|
||||
self.subevent = None
|
||||
if request.event.has_subevents:
|
||||
if 'subevent' in kwargs:
|
||||
self.subevent = request.event.subevents.filter(pk=kwargs['subevent'], active=True).first()
|
||||
if not self.subevent:
|
||||
raise Http404()
|
||||
else:
|
||||
if 'subevent' in kwargs:
|
||||
raise Http404()
|
||||
|
||||
if 'lang' in request.GET and request.GET.get('lang') in [lc for lc, ll in settings.LANGUAGES]:
|
||||
with language(request.GET.get('lang')):
|
||||
return super().dispatch(request, *args, **kwargs)
|
||||
else:
|
||||
return super().dispatch(request, *args, **kwargs)
|
||||
|
||||
def get(self, request, **kwargs):
|
||||
data = {
|
||||
'currency': request.event.currency,
|
||||
'display_net_prices': request.event.settings.display_net_prices,
|
||||
'show_variations_expanded': request.event.settings.show_variations_expanded,
|
||||
'waiting_list_enabled': request.event.settings.waiting_list_enabled,
|
||||
'error': None,
|
||||
'cart_exists': False
|
||||
}
|
||||
|
||||
if 'cart_id' in request.GET and CartPosition.objects.filter(event=request.event, cart_id=request.GET.get('cart_id')).exists():
|
||||
data['cart_exists'] = True
|
||||
|
||||
ev = self.subevent or request.event
|
||||
fail = False
|
||||
|
||||
if not ev.presale_is_running:
|
||||
if ev.presale_has_ended:
|
||||
data['error'] = 'The presale period for this event is over.'
|
||||
elif request.event.settings.presale_start_show_date:
|
||||
data['error'] = 'The presale for this event will start on %(date)s at %(time)s.' % {
|
||||
'date': date_format(ev.presale_start, "SHORT_DATE_FORMAT"),
|
||||
'time': date_format(ev.presale_start, "TIME_FORMAT"),
|
||||
}
|
||||
else:
|
||||
data['error'] = 'The presale for this event has not yet started.'
|
||||
|
||||
self.voucher = None
|
||||
if 'voucher' in request.GET:
|
||||
try:
|
||||
self.voucher = request.event.vouchers.get(code=request.GET.get('voucher').strip())
|
||||
if self.voucher.redeemed >= self.voucher.max_usages:
|
||||
data['error'] = error_messages['voucher_redeemed']
|
||||
fail = True
|
||||
if self.voucher.valid_until is not None and self.voucher.valid_until < now():
|
||||
data['error'] = error_messages['voucher_expired']
|
||||
fail = True
|
||||
|
||||
redeemed_in_carts = CartPosition.objects.filter(
|
||||
Q(voucher=self.voucher) & Q(event=request.event) &
|
||||
(Q(expires__gte=now()) | Q(cart_id=get_or_create_cart_id(request)))
|
||||
)
|
||||
v_avail = self.voucher.max_usages - self.voucher.redeemed - redeemed_in_carts.count()
|
||||
|
||||
if v_avail < 1:
|
||||
data['error'] = error_messages['voucher_redeemed']
|
||||
fail = True
|
||||
except Voucher.DoesNotExist:
|
||||
data['error'] = error_messages['voucher_invalid']
|
||||
fail = True
|
||||
|
||||
if not fail and (ev.presale_is_running or request.event.settings.show_items_outside_presale_period):
|
||||
data['items_by_category'], data['display_add_to_cart'] = self._get_items()
|
||||
data['display_add_to_cart'] = data['display_add_to_cart'] and ev.presale_is_running
|
||||
else:
|
||||
data['items_by_category'] = []
|
||||
data['display_add_to_cart'] = False
|
||||
|
||||
vouchers_exist = self.request.event.get_cache().get('vouchers_exist')
|
||||
if vouchers_exist is None:
|
||||
vouchers_exist = self.request.event.vouchers.exists()
|
||||
self.request.event.get_cache().set('vouchers_exist', vouchers_exist)
|
||||
data['vouchers_exist'] = vouchers_exist
|
||||
|
||||
resp = JsonResponse(data)
|
||||
resp['Access-Control-Allow-Origin'] = '*'
|
||||
return resp
|
||||
Reference in New Issue
Block a user