Files
pretix_cgo/src/pretix/plugins/banktransfer/views.py
2016-09-08 20:43:05 +02:00

320 lines
12 KiB
Python

import csv
import json
import logging
from locale import format as lformat
from django.contrib import messages
from django.core.urlresolvers import reverse
from django.db.models import Q
from django.http import JsonResponse
from django.shortcuts import get_object_or_404, redirect, render
from django.utils.functional import cached_property
from django.utils.translation import ugettext as _
from django.views.generic import DetailView, ListView, TemplateView, View
from pretix.base.models import Order, Quota
from pretix.base.services.mail import SendMailException
from pretix.base.services.orders import mark_order_paid
from pretix.base.settings import SettingsSandbox
from pretix.control.permissions import EventPermissionRequiredMixin
from pretix.plugins.banktransfer import csvimport, mt940import
from pretix.plugins.banktransfer.models import BankImportJob, BankTransaction
from pretix.plugins.banktransfer.tasks import process_banktransfers
logger = logging.getLogger('pretix.plugins.banktransfer')
class ActionView(EventPermissionRequiredMixin, View):
permission = 'can_change_orders'
def _discard(self, trans):
trans.state = BankTransaction.STATE_DISCARDED
trans.shred_private_data()
trans.save()
return JsonResponse({
'status': 'ok'
})
def _retry(self, trans):
if trans.amount != trans.order.total:
return JsonResponse({
'status': 'error',
'message': _('The transaction amount is incorrect.')
})
return self._accept_ignore_amount(trans)
def _accept_ignore_amount(self, trans):
if trans.order.status == Order.STATUS_PAID:
return JsonResponse({
'status': 'error',
'message': _('The order is already marked as paid.')
})
elif trans.order.status == Order.STATUS_REFUNDED:
return JsonResponse({
'status': 'error',
'message': _('The order has already been refunded.')
})
elif trans.order.status == Order.STATUS_CANCELLED:
return JsonResponse({
'status': 'error',
'message': _('The order has already been cancelled.')
})
try:
mark_order_paid(trans.order, provider='banktransfer', info=json.dumps({
'reference': trans.reference,
'date': trans.date.isoformat(),
'payer': trans.payer,
'trans_id': trans.pk
}))
trans.state = BankTransaction.STATE_VALID
trans.save()
except Quota.QuotaExceededException as e:
return JsonResponse({
'status': 'error',
'message': str(e)
})
except SendMailException:
return JsonResponse({
'status': 'error',
'message': _('Problem sending email.')
})
else:
trans.state = BankTransaction.STATE_VALID
trans.save()
return JsonResponse({
'status': 'ok'
})
def _assign(self, trans, code):
try:
trans.order = self.request.event.orders.get(code=code)
except Order.DoesNotExist:
return JsonResponse({
'status': 'error',
'message': _('Unknown order code.')
})
else:
return self._retry(trans)
def post(self, request, *args, **kwargs):
for k, v in request.POST.items():
if not k.startswith('action_'):
continue
trans = get_object_or_404(BankTransaction, id=k.split('_')[1], event=self.request.event)
if v == 'discard' and trans.state in (BankTransaction.STATE_INVALID, BankTransaction.STATE_ERROR,
BankTransaction.STATE_NOMATCH):
return self._discard(trans)
elif v == 'accept' and trans.state == BankTransaction.STATE_INVALID:
# Accept anyway even with wrong amount
return self._accept_ignore_amount(trans)
elif v.startswith('assign:') and trans.state == BankTransaction.STATE_NOMATCH:
return self._assign(trans, v[7:])
elif v == 'retry' and trans.state == BankTransaction.STATE_ERROR:
return self._retry(trans)
return JsonResponse({
'status': 'error',
'message': 'Unknown action'
})
def get(self, request, *args, **kwargs):
query = request.GET.get('query', '')
if len(query) < 2:
return JsonResponse({'results': []})
qs = self.request.event.orders.filter(Q(code__icontains=query) | Q(code__icontains=Order.normalize_code(query)))
return JsonResponse({
'results': [
{
'code': o.code,
'status': o.get_status_display(),
'total': lformat("%.2f", o.total) + ' ' + self.request.event.currency
} for o in qs
]
})
class JobDetailView(EventPermissionRequiredMixin, DetailView):
template_name = 'pretixplugins/banktransfer/job_detail.html'
permission = 'can_change_orders'
context_objectname = 'job'
def redirect_form(self):
return redirect(reverse('plugins:banktransfer:import', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
}))
def redirect_back(self):
return redirect(reverse('plugins:banktransfer:import.job', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
'job': self.kwargs['job']
}))
def get_object(self, queryset=None):
return get_object_or_404(BankImportJob, id=self.kwargs['job'], event=self.request.event)
def get(self, request, *args, **kwargs):
if 'ajax' in request.GET:
self.object = self.get_object()
return JsonResponse({
'state': self.object.state
})
return super().get(request, *args, **kwargs)
def get_context_data(self, **kwargs):
ctx = super().get_context_data()
qs = self.object.transactions.select_related('order')
ctx['transactions_valid'] = qs.filter(state=BankTransaction.STATE_VALID).count()
ctx['transactions_invalid'] = qs.filter(state__in=[
BankTransaction.STATE_INVALID, BankTransaction.STATE_ERROR
]).count()
ctx['transactions_ignored'] = qs.filter(state__in=[
BankTransaction.STATE_DUPLICATE, BankTransaction.STATE_NOMATCH
]).count()
ctx['job'] = self.object
return ctx
class ImportView(EventPermissionRequiredMixin, ListView):
template_name = 'pretixplugins/banktransfer/import_form.html'
permission = 'can_change_orders'
context_object_name = 'transactions_unhandled'
paginate_by = 30
def get_queryset(self):
qs = BankTransaction.objects.filter(
event=self.request.event
).select_related('order').filter(state__in=[
BankTransaction.STATE_INVALID, BankTransaction.STATE_ERROR,
BankTransaction.STATE_DUPLICATE, BankTransaction.STATE_NOMATCH
])
if 'search' in self.request.GET:
q = self.request.GET.get('search')
qs = qs.filter(
Q(payer__icontains=q) | Q(reference__icontains=q)
)
return qs
def discard_all(self):
self.get_queryset().update(payer='', reference='', state=BankTransaction.STATE_DISCARDED)
messages.success(self.request, _('All unresolved transactions have been discarded.'))
def post(self, *args, **kwargs):
if self.request.POST.get('discard', '') == 'all':
self.discard_all()
return self.redirect_back()
if ('file' in self.request.FILES and 'csv' in self.request.FILES.get('file').name.lower()) \
or 'amount' in self.request.POST:
# Process CSV
return self.process_csv()
if 'file' in self.request.FILES and 'txt' in self.request.FILES.get('file').name.lower():
return self.process_mt940()
messages.error(self.request, _('We were unable to detect the file type of this import. Please '
'contact support for help.'))
return self.redirect_back()
@cached_property
def settings(self):
return SettingsSandbox('payment', 'banktransfer', self.request.event)
def process_mt940(self):
try:
return self.start_processing(mt940import.parse(self.request.FILES.get('file')))
except:
logger.exception('Failed to import MT940 file')
messages.error(self.request, _('We were unable to process your input.'))
return self.redirect_back()
def process_csv_file(self):
try:
data = csvimport.get_rows_from_file(self.request.FILES['file'])
except csv.Error as e: # TODO: narrow down
logger.error('Import failed: ' + str(e))
messages.error(self.request, _('I\'m sorry, but we were unable to import this CSV file. Please '
'contact support for help.'))
return self.redirect_back()
if len(data) == 0:
messages.error(self.request, _('I\'m sorry, but we detected this file as empty. Please '
'contact support for help.'))
if self.request.event.settings.get('banktransfer_csvhint') is not None:
hint = self.request.event.settings.get('banktransfer_csvhint', as_type=dict)
try:
parsed = csvimport.parse(data, hint)
except csvimport.HintMismatchError: # TODO: narrow down
logger.exception('Import using stored hint failed')
else:
return self.start_processing(parsed)
return self.assign_view(data)
def process_csv_hint(self):
data = []
for i in range(int(self.request.POST.get('rows'))):
data.append(
[
self.request.POST.get('col[%d][%d]' % (i, j))
for j in range(int(self.request.POST.get('cols')))
]
)
if 'reference' not in self.request.POST:
messages.error(self.request, _('You need to select the column containing the payment reference.'))
return self.assign_view(data)
try:
hint = csvimport.new_hint(self.request.POST)
except Exception as e:
logger.error('Parsing hint failed: ' + str(e))
messages.error(self.request, _('We were unable to process your input.'))
return self.assign_view(data)
try:
self.request.event.settings.set('banktransfer_csvhint', hint)
except Exception as e: # TODO: narrow down
logger.error('Import using stored hint failed: ' + str(e))
pass
else:
parsed = csvimport.parse(data, hint)
return self.start_processing(parsed)
def process_csv(self):
if 'file' in self.request.FILES:
return self.process_csv_file()
elif 'amount' in self.request.POST:
return self.process_csv_hint()
return super().get(self.request)
def assign_view(self, parsed):
return render(self.request, 'pretixplugins/banktransfer/import_assign.html', {
'rows': parsed
})
def redirect_back(self):
return redirect(reverse('plugins:banktransfer:import', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
}))
def start_processing(self, parsed):
job = BankImportJob.objects.create(event=self.request.event)
process_banktransfers(event=self.request.event.pk, job=job.pk, data=parsed)
return redirect(reverse('plugins:banktransfer:import.job', kwargs={
'event': self.request.event.slug,
'organizer': self.request.event.organizer.slug,
'job': job.pk
}))