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models.py
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models.py
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# coding: utf-8
from __future__ import unicode_literals
from __future__ import print_function
from __future__ import absolute_import
from __future__ import division
from django.db import models
from django.utils.encoding import python_2_unicode_compatible
from django.utils.translation import ugettext_lazy as _
from django.utils import six
from onpay import settings
from onpay.signals import (order_created, order_updated,
order_success, order_failure)
import hashlib
try:
from urllib.parse import urlencode
except ImportError:
from urllib import urlencode
def md5(src):
if six.PY3:
src = src.encode('utf-8')
return hashlib.md5(src).hexdigest().upper()
@python_2_unicode_compatible
class Order(models.Model):
MODE_LIVE = 0
MODE_TEST = 1
STATE_SUCCESS = 0
STATE_FAILURE = 1
STATE_WAITING = 3
STATE_EXPIRED = 2
amount = models.IntegerField(_('amount'))
currency = models.CharField(_('currency'),
max_length=3,
default=settings.ONPAY_CURRENCY,
choices=settings.ONPAY_CURRENCIES)
comment = models.TextField(_('order notes'), default='')
email = models.EmailField(_('buyer e-mail'))
date_created = models.DateTimeField(_('created at'), auto_now_add=True)
state = models.IntegerField(_('order status'),
default=STATE_WAITING,
choices=(
(STATE_SUCCESS, _('Success')),
(STATE_FAILURE, _('Failed')),
(STATE_WAITING, _('Waiting')),
(STATE_EXPIRED, _('Expired')),
))
mode = models.IntegerField(_('mode'), default=MODE_LIVE,
choices=(
(MODE_LIVE, _('live')),
(MODE_TEST, _('text')),
))
def mark_as_success(self):
self._mark(state=self.STATE_SUCCESS, signal=order_success)
def mark_as_failure(self):
self._mark(state=self.STATE_FAILURE, signal=order_failure)
def can_be_payed(self):
return self.state == self.STATE_WAITING
def is_successfully_paid(self):
return self.state == self.STATE_SUCCESS
def is_pay_failed(self):
return self.state in [self.STATE_EXPIRED, self.STATE_FAILURE]
def get_pay_url(self, currency=settings.ONPAY_CURRENCY,
success_url=settings.ONPAY_SUCCESS_URL,
failure_url=settings.ONPAY_SUCCESS_URL):
pattern = 'fix;{amount:.1f};{currency};{order_id:d};no;{secret}'
md5_str = pattern.format(amount=self.amount,
currency=settings.ONPAY_CURRENCY,
secret=settings.ONPAY_SECRET,
order_id=self.id)
if six.PY3:
md5_str = md5_str.encode('utf-8')
md5 = hashlib.md5(md5_str).hexdigest()
return settings.ONPAY_GATE_URL + '?' + urlencode({
'pay_mode': 'fix',
'f': 7,
'price': self.amount,
'pay_for': self.id,
'convert': 'no',
'price_final': 'true',
'user_email': self.email,
'md5': md5,
'currency': currency,
'url_success_enc': success_url,
'url_fail_enc': failure_url,
})
pay_url = property(get_pay_url)
def _mark(self, state, signal):
self.state = state
self.save(update_fields=['state'])
signal.send(sender=self.__class__, order=self)
def _check(self, flag=''):
pattern = 'check;{order_id};{amount:.1f};{currency};{flag}{secret}'
raw_string = pattern.format(order_id=self.id,
amount=self.amount,
currency=settings.ONPAY_CURRENCY,
secret=settings.ONPAY_SECRET,
flag=flag)
hashed_string = md5(raw_string)
return hashed_string
def crc_check_correct(self, crc):
return crc == self.crc_check_get()
def crc_check_get(self):
return self._check(flag='')
def crc_check_create(self):
return self._check(flag='0;')
def crc_pay_correct(self, crc, onpay_id, order_amount):
actual_crc = self.crc_pay_get(onpay_id, order_amount)
return crc == actual_crc
def crc_pay_get(self, onpay_id, order_amount):
pattern = ('pay;{order_id};{onpay_id};{order_amount};'
'{currency};{secret}')
md5source = pattern.format(order_id=self.id,
onpay_id=onpay_id,
order_amount=order_amount,
currency=settings.ONPAY_CURRENCY,
secret=settings.ONPAY_SECRET)
md5hash = md5(md5source)
return md5hash
def crc_pay_create(self, onpay_id, order_amount):
pattern = ('pay;{po:d};{onpay_id};{order_id:d};{order_amount};'
'{currency};0;{secret}')
result_m5source = pattern.format(po=self.id,
onpay_id=onpay_id,
order_id=self.id,
order_amount=order_amount,
currency=settings.ONPAY_CURRENCY,
secret=settings.ONPAY_SECRET)
result_m5hash = md5(result_m5source)
return result_m5hash
def __str__(self):
return '#%s' % self.pk
class Meta(object):
verbose_name = _('payment')
verbose_name_plural = _('payments')
def order_trigger(**kwargs):
instance = kwargs['instance']
created = kwargs['created']
sender = kwargs['sender']
if created:
order_created.send(sender=sender, order=instance)
else:
order_updated.send(sender=sender, order=instance)
def mode_trigger(**kwargs):
instance = kwargs['instance']
if instance.pk:
return
if instance.currency == 'TST':
instance.mode = instance.MODE_TEST
models.signals.pre_save.connect(mode_trigger, sender=Order,
dispatch_uid='onpay.models')
models.signals.post_save.connect(order_trigger, sender=Order,
dispatch_uid='onpay.models')