727 lines
		
	
	
		
			No EOL
		
	
	
		
			27 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			727 lines
		
	
	
		
			No EOL
		
	
	
		
			27 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
| import decimal
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| import json
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| import logging
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| import os
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| from datetime import datetime
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| 
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| import pytz
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| from Crypto.PublicKey import RSA
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| from dateutil.relativedelta import relativedelta
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| from django.db import models
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| from django.utils import timezone
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| from django.utils.functional import cached_property
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| 
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| from datacenterlight.models import VMPricing, VMTemplate, StripePlan
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| from membership.models import StripeCustomer, CustomUser
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| from utils.mixins import AssignPermissionsMixin
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| from utils.models import BillingAddress
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| from utils.stripe_utils import StripeUtils
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| 
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| logger = logging.getLogger(__name__)
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| 
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| 
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| class HostingPlan(models.Model):
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|     disk_size = models.FloatField(default=0.0)
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|     cpu_cores = models.FloatField(default=0.0)
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|     memory = models.FloatField(default=0.0)
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| 
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|     def serialize(self):
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|         return {
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|             'id': self.id,
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|             'cpu': self.cpu_cores,
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|             'memory': self.memory,
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|             'disk_size': self.disk_size,
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|             'price': self.price(),
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|         }
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| 
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|     @classmethod
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|     def get_serialized_configs(cls):
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|         return [cfg.serialize()
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|                 for cfg in cls.objects.all()]
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| 
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|     def price(self):
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|         price = self.disk_size * 0.6
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|         price += self.cpu_cores * 5
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|         price += self.memory * 2
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|         return price
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| 
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| 
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| class OrderDetail(AssignPermissionsMixin, models.Model):
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|     vm_template = models.ForeignKey(
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|         VMTemplate, blank=True, null=True, default=None,
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|         on_delete=models.SET_NULL
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|     )
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|     cores = models.IntegerField(default=0)
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|     memory = models.IntegerField(default=0)
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|     hdd_size = models.IntegerField(default=0)
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|     ssd_size = models.IntegerField(default=0)
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| 
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|     def __str__(self):
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|         return "Not available" if self.vm_template is None else (
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|             "%s - %s, %s cores, %s GB RAM, %s GB SSD" % (
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|                 self.vm_template.name, self.vm_template.vm_type, self.cores,
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|                 self.memory, self.ssd_size
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|             )
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|         )
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| 
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| 
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| class GenericProduct(AssignPermissionsMixin, models.Model):
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|     permissions = ('view_genericproduct',)
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|     product_name = models.CharField(max_length=128, default="")
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|     product_slug = models.SlugField(
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|         unique=True,
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|         help_text=(
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|             'An mandatory unique slug for the product'
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|         )
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|     )
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|     product_description = models.CharField(max_length=500, default="")
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|     created_at = models.DateTimeField(auto_now_add=True)
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|     product_price = models.DecimalField(max_digits=6, decimal_places=2)
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|     product_vat = models.DecimalField(max_digits=6, decimal_places=4, default=0)
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|     product_is_subscription = models.BooleanField(default=True)
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|     product_subscription_interval = models.CharField(
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|         max_length=10, default="month",
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|         help_text="Choose between `year` and `month`")
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| 
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|     def __str__(self):
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|         return self.product_name
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| 
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|     def get_actual_price(self, vat_rate=None):
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|         VAT = vat_rate if vat_rate is not None else self.product_vat
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|         return round(
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|             float(self.product_price) + float(self.product_price) * float(VAT), 2
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|         )
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| 
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| 
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| class HostingOrder(AssignPermissionsMixin, models.Model):
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|     ORDER_APPROVED_STATUS = 'Approved'
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|     ORDER_DECLINED_STATUS = 'Declined'
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| 
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|     vm_id = models.IntegerField(default=0)
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|     customer = models.ForeignKey(StripeCustomer)
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|     billing_address = models.ForeignKey(BillingAddress)
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|     created_at = models.DateTimeField(auto_now_add=True)
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|     approved = models.BooleanField(default=False)
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|     last4 = models.CharField(max_length=4)
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|     cc_brand = models.CharField(max_length=128)
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|     stripe_charge_id = models.CharField(max_length=100, null=True)
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|     price = models.FloatField()
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|     subscription_id = models.CharField(max_length=100, null=True)
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|     vm_pricing = models.ForeignKey(VMPricing)
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|     order_detail = models.ForeignKey(
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|         OrderDetail, null=True, blank=True, default=None,
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|         on_delete=models.SET_NULL
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|     )
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|     generic_product = models.ForeignKey(
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|         GenericProduct, null=True, blank=True, default=None,
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|         on_delete=models.SET_NULL
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|     )
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|     generic_payment_description = models.CharField(
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|         max_length=500, null=True
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|     )
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|     permissions = ('view_hostingorder',)
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| 
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|     class Meta:
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|         permissions = (
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|             ('view_hostingorder', 'View Hosting Order'),
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|         )
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| 
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|     def __str__(self):
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|         hosting_order_str = ("Order Nr: #{} - VM_ID: {} - {} - {} - "
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|                              "Specs: {} - Price: {}").format(
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|             self.id, self.vm_id, self.customer.user.email, self.created_at,
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|             self.order_detail, self.price
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|         )
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|         if self.generic_product_id is not None:
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|             hosting_order_str += " - Generic Payment"
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|             if self.stripe_charge_id is not None:
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|                 hosting_order_str += " - One time charge"
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|             else:
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|                 hosting_order_str += " - Recurring"
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|         return hosting_order_str
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| 
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|     @cached_property
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|     def status(self):
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|         return self.ORDER_APPROVED_STATUS if self.approved else self.ORDER_DECLINED_STATUS
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| 
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|     @classmethod
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|     def create(cls, price=None, vm_id=0, customer=None,
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|                billing_address=None, vm_pricing=None):
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|         instance = cls.objects.create(
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|             price=price,
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|             vm_id=vm_id,
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|             customer=customer,
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|             billing_address=billing_address,
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|             vm_pricing=vm_pricing
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|         )
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|         instance.assign_permissions(customer.user)
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|         return instance
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| 
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|     def set_approved(self):
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|         self.approved = True
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|         self.save()
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| 
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|     def set_stripe_charge(self, stripe_charge):
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|         self.stripe_charge_id = stripe_charge.id
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|         self.last4 = stripe_charge.source.last4
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|         self.cc_brand = stripe_charge.source.brand
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|         self.save()
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| 
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|     def set_subscription_id(self, subscription_id, cc_details):
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|         """
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|         When creating a Stripe subscription, we have subscription id.
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|         We store this in the subscription_id field.
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|         This method sets the subscription id
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|         and the last4 and credit card brands used for this order.
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| 
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|         :param subscription_id: Stripe's subscription id
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|         :param cc_details: A dict containing card details
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|         {last4, brand}
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|         :return:
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|         """
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|         self.subscription_id = subscription_id
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|         self.last4 = cc_details.get('last4')
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|         self.cc_brand = cc_details.get('brand')
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|         self.save()
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| 
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|     def get_cc_data(self):
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|         return {
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|             'last4': self.last4,
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|             'cc_brand': self.cc_brand,
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|         } if self.last4 and self.cc_brand else None
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| 
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| 
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| class UserHostingKey(models.Model):
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|     user = models.ForeignKey(CustomUser, blank=True, null=True)
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|     public_key = models.TextField()
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|     private_key = models.FileField(upload_to='private_keys', blank=True)
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|     created_at = models.DateTimeField(auto_now_add=True)
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|     name = models.CharField(max_length=100)
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| 
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|     @staticmethod
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|     def generate_RSA(bits=2048):
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|         '''
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|         Generate an RSA keypair with an exponent of 65537 in PEM format
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|         param: bits The key length in bits
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|         Return private key and public key
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|         '''
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|         new_key = RSA.generate(2048, os.urandom)
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|         public_key = new_key.publickey().exportKey("OpenSSH")
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|         private_key = new_key.exportKey("PEM")
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|         return private_key, public_key
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| 
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|     @classmethod
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|     def generate_keys(cls):
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|         private_key, public_key = cls.generate_RSA()
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|         # self.public_key = public_key
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|         # self.save(update_fields=['public_key'])
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|         return private_key, public_key
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| 
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|     def delete(self,*args,**kwargs):
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|         if bool(self.private_key) and os.path.isfile(self.private_key.path):
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|             logger.debug("Removing private key {}".format(self.private_key.path))
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|             os.remove(self.private_key.path)
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|         else:
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|             logger.debug("No private_key to remove")
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| 
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|         super(UserHostingKey, self).delete(*args,**kwargs)
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| 
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| 
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| class HostingBill(AssignPermissionsMixin, models.Model):
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|     customer = models.ForeignKey(StripeCustomer)
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|     billing_address = models.ForeignKey(BillingAddress)
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|     total_price = models.FloatField(default=0.0)
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| 
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|     permissions = ('view_hostingbill',)
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| 
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|     class Meta:
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|         permissions = (
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|             ('view_hostingbill', 'View Hosting Bill'),
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|         )
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| 
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|     def __str__(self):
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|         return "%s" % (self.customer.user.email)
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| 
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|     @classmethod
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|     def create(cls, customer=None, billing_address=None):
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|         instance = cls.objects.create(customer=customer,
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|                                       billing_address=billing_address)
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|         return instance
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| 
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| 
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| class MonthlyHostingBill(AssignPermissionsMixin, models.Model):
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|     """
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|     Corresponds to Invoice object of Stripe
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|     """
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|     customer = models.ForeignKey(StripeCustomer)
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|     order = models.ForeignKey(HostingOrder)
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|     created = models.DateTimeField(help_text="When the invoice was created")
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|     receipt_number = models.CharField(
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|         help_text="The receipt number that is generated on Stripe",
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|         max_length=100
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|     )
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|     invoice_number = models.CharField(
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|         help_text="The invoice number that is generated on Stripe",
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|         max_length=100
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|     )
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|     paid_at = models.DateTimeField(help_text="Date on which the bill was paid")
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|     period_start = models.DateTimeField()
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|     period_end = models.DateTimeField()
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|     billing_reason = models.CharField(max_length=25)
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|     discount = models.PositiveIntegerField()
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|     total = models.IntegerField()
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|     lines_data_count = models.IntegerField()
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|     invoice_id = models.CharField(unique=True, max_length=100)
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|     lines_meta_data_csv = models.TextField(default="")
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|     subscription_ids_csv = models.TextField(default="")
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| 
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|     permissions = ('view_monthlyhostingbill',)
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| 
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|     class Meta:
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|         permissions = (
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|             ('view_monthlyhostingbill', 'View Monthly Hosting'),
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|         )
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| 
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|     @classmethod
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|     def create(cls, args):
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|         # Try to infer the HostingOrder from subscription id or VM_ID
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|         if len(args['subscription_ids_csv']) > 0:
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|             sub_ids = [sub_id.strip() for sub_id in args['subscription_ids_csv'].split(",")]
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|             set_sub_ids = set(sub_ids)
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|             if len(set_sub_ids) == 1:
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|                 # the multiple line items belong to the same subscription
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|                 sub_id = set_sub_ids.pop()
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|                 try:
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|                     args['order'] = HostingOrder.objects.get(
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|                         subscription_id=sub_id
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|                     )
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|                 except HostingOrder.DoesNotExist as dne:
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|                     logger.error("Hosting order for {} doesn't exist".format(
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|                         sub_id
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|                     ))
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|                     args['order'] = None
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|             else:
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|                 logger.debug(
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|                     "More than one subscriptions"
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|                     "for MonthlyHostingBill {}".format(args['invoice_id'])
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|                 )
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|                 logger.debug("SUB_IDS={}".format(','.join(sub_ids)))
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|                 logger.debug("Not importing invoices")
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|                 return None
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|         elif len(args['lines_meta_data_csv']) > 0:
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|             vm_ids = [vm_id.strip() for vm_id in args['lines_meta_data_csv'].split(",")]
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|             if len(vm_ids) == 1:
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|                 args['order'] = HostingOrder.objects.get(vm_id=vm_ids[0])
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|             else:
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|                 logger.debug(
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|                     "More than one VM_ID"
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|                     "for MonthlyHostingBill {}".format(args['invoice_id'])
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|                 )
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|                 logger.debug("VM_IDS={}".format(','.join(vm_ids)))
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|                 logger.debug("Not importing invoices")
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|                 return None
 | |
|         else:
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|             logger.debug("Neither subscription id nor vm_id available")
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|             logger.debug("Can't import invoice")
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|             return None
 | |
|         if args['order'] is None:
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|             logger.error(
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|                 "Order is None for {}".format(args['invoice_id']))
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|             return None
 | |
|         instance = cls.objects.create(
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|             created=datetime.utcfromtimestamp(
 | |
|                 args['created']).replace(tzinfo=pytz.utc),
 | |
|             receipt_number=(
 | |
|                 args['receipt_number']
 | |
|                 if args['receipt_number'] is not None else ''
 | |
|             ),
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|             invoice_number=(
 | |
|                 args['invoice_number']
 | |
|                 if args['invoice_number'] is not None else ''
 | |
|             ),
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|             paid_at=datetime.utcfromtimestamp(
 | |
|                 args['paid_at']).replace(tzinfo=pytz.utc),
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|             period_start=datetime.utcfromtimestamp(
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|                 args['period_start']).replace(tzinfo=pytz.utc),
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|             period_end=datetime.utcfromtimestamp(
 | |
|                 args['period_end']).replace(tzinfo=pytz.utc),
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|             billing_reason=(
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|                 args['billing_reason']
 | |
|                 if args['billing_reason'] is not None else ''
 | |
|             ),
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|             discount=args['discount'],
 | |
|             total=args['total'],
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|             lines_data_count=args['lines_data_count'],
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|             invoice_id=args['invoice_id'],
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|             lines_meta_data_csv=args['lines_meta_data_csv'],
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|             customer=args['customer'],
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|             order=args['order'],
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|             subscription_ids_csv=args['subscription_ids_csv'],
 | |
|         )
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| 
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|         if 'line_items' in args:
 | |
|             line_items = args['line_items']
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|             for item in line_items:
 | |
|                 stripe_plan = None
 | |
|                 if item.type == "subscription" or item.type == "invoiceitem":
 | |
|                     # Check stripe plan and prepare it for linking to bill item
 | |
|                     stripe_plan_id = item.plan.id
 | |
|                     try:
 | |
|                         stripe_plan = StripePlan.objects.get(
 | |
|                             stripe_plan_id=stripe_plan_id
 | |
|                         )
 | |
|                     except StripePlan.DoesNotExist as dne:
 | |
|                         logger.error(
 | |
|                             "StripePlan %s doesn't exist" % stripe_plan_id
 | |
|                         )
 | |
|                         if stripe_plan_id is not None:
 | |
|                             # Create Stripe Plan because we don't have it
 | |
|                             stripe_plan = StripePlan.objects.create(
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|                                 stripe_plan_id=stripe_plan_id,
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|                                 stripe_plan_name=item.plan.name,
 | |
|                                 amount=item.plan.amount,
 | |
|                                 interval=item.plan.interval
 | |
|                             )
 | |
|                             logger.debug("Creatd StripePlan " + stripe_plan_id)
 | |
|                 line_item_instance = HostingBillLineItem.objects.create(
 | |
|                     monthly_hosting_bill=instance,
 | |
|                     amount=item.amount,
 | |
|                     # description seems to be set to null in the Stripe
 | |
|                     # response for an invoice
 | |
|                     description="" if item.description is None else item.description,
 | |
|                     discountable=item.discountable,
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|                     metadata=json.dumps(item.metadata),
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|                     period_start=datetime.utcfromtimestamp(item.period.start).replace(tzinfo=pytz.utc),                                            period_end=datetime.utcfromtimestamp(item.period.end).replace(tzinfo=pytz.utc),
 | |
|                     proration=item.proration,
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|                     quantity=item.quantity,
 | |
|                     # Strange that line item does not have unit_amount but api
 | |
|                     # states that it is present
 | |
|                     # https://stripe.com/docs/api/invoiceitems/object#invoiceitem_object-unit_amount
 | |
|                     # So, for the time being I set the unit_amount to 0 if not
 | |
|                     # found in the line item
 | |
|                     unit_amount=item.unit_amount if hasattr(item, "unit_amount") else 0,
 | |
|                     stripe_plan=stripe_plan
 | |
|                 )
 | |
|                 line_item_instance.assign_permissions(instance.customer.user)
 | |
|         instance.assign_permissions(instance.customer.user)
 | |
|         return instance
 | |
| 
 | |
|     def total_in_chf(self):
 | |
|         """
 | |
|         Returns amount in chf. The total amount in this model is in cents.
 | |
|         Hence we multiply it by 0.01 to obtain the result
 | |
| 
 | |
|         :return:
 | |
|         """
 | |
|         return self.total * 0.01
 | |
| 
 | |
|     def discount_in_chf(self):
 | |
|         """
 | |
|         Returns discount in chf.
 | |
| 
 | |
|         :return:
 | |
|         """
 | |
|         return self.discount * 0.01
 | |
| 
 | |
|     def get_vm_id(self):
 | |
|         """
 | |
|         Returns the VM_ID metadata if set in this MHB else returns None
 | |
|         :return:
 | |
|         """
 | |
|         return_value = None
 | |
|         if len(self.lines_meta_data_csv) > 0:
 | |
|             vm_ids = [vm_id.strip() for vm_id in
 | |
|                       self.lines_meta_data_csv.split(",")]
 | |
|             unique_vm_ids=set(vm_ids)
 | |
|             unique_vm_ids.discard("")
 | |
|             if len(unique_vm_ids) == 1:
 | |
|                 vm_id = unique_vm_ids.pop()
 | |
|                 logger.debug("Getting invoice for {}".format(vm_id))
 | |
|                 return vm_id
 | |
|             else:
 | |
|                 logger.debug(
 | |
|                     "More than one VM_ID"
 | |
|                     "for MonthlyHostingBill {}".format(self.invoice_id)
 | |
|                 )
 | |
|                 logger.debug("VM_IDS={}".format(unique_vm_ids))
 | |
|         return return_value
 | |
| 
 | |
|     def get_period_start(self):
 | |
|         """
 | |
|         Return the period start of the invoice for the line items
 | |
|         :return:
 | |
|         """
 | |
|         items = HostingBillLineItem.objects.filter(monthly_hosting_bill=self)
 | |
|         if len(items) > 0:
 | |
|             return items[0].period_start
 | |
|         else:
 | |
|             return self.period_start
 | |
| 
 | |
|     def get_period_end(self):
 | |
|         """
 | |
|         Return the period end of the invoice for the line items
 | |
|         :return:
 | |
|         """
 | |
|         items = HostingBillLineItem.objects.filter(monthly_hosting_bill=self)
 | |
|         if len(items) > 0:
 | |
|             return items[0].period_end
 | |
|         else:
 | |
|             return self.period_end
 | |
| 
 | |
| 
 | |
| class HostingBillLineItem(AssignPermissionsMixin, models.Model):
 | |
|     """
 | |
|     Corresponds to InvoiceItem object of Stripe
 | |
|     """
 | |
|     monthly_hosting_bill = models.ForeignKey(MonthlyHostingBill,
 | |
|                                              on_delete=models.CASCADE)
 | |
|     stripe_plan = models.ForeignKey(StripePlan, null=True,
 | |
|                                     on_delete=models.CASCADE)
 | |
|     amount = models.IntegerField()
 | |
|     description = models.CharField(max_length=255)
 | |
|     discountable = models.BooleanField()
 | |
|     metadata = models.CharField(max_length=128)
 | |
|     period_start = models.DateTimeField()
 | |
|     period_end = models.DateTimeField()
 | |
|     proration = models.BooleanField()
 | |
|     quantity = models.PositiveIntegerField()
 | |
|     unit_amount = models.PositiveIntegerField()
 | |
|     permissions = ('view_hostingbilllineitem',)
 | |
| 
 | |
|     class Meta:
 | |
|         permissions = (
 | |
|             ('view_hostingbilllineitem', 'View Monthly Hosting Bill Line Item'),
 | |
|         )
 | |
| 
 | |
|     def amount_in_chf(self):
 | |
|         """
 | |
|         Returns amount in chf. The amount in this model is in cents (as in
 | |
|         Stripe). Hence we multiply it by 0.01 to obtain the result
 | |
| 
 | |
|         :return:
 | |
|         """
 | |
|         return self.amount * 0.01
 | |
| 
 | |
|     def unit_amount_in_chf(self):
 | |
|         """
 | |
|         Returns unit amount in chf. If its 0, we obtain it from amount and
 | |
|         quantity.
 | |
| 
 | |
|         :return:
 | |
|         """
 | |
|         if self.unit_amount == 0:
 | |
|             return round((self.amount / self.quantity) * 0.01, 2)
 | |
|         else:
 | |
|             return self.unit_amount * 0.01
 | |
| 
 | |
|     def get_item_detail_str(self):
 | |
|         """
 | |
|         Returns line item html string representation
 | |
|         :return:
 | |
|         """
 | |
|         item_detail = ""
 | |
|         # metadata is a dict; a dict with nothing has two chars at least {}
 | |
|         if self.metadata is not None and len(self.metadata) > 2:
 | |
|             try:
 | |
|                 vm_dict = json.loads(self.metadata)
 | |
|                 item_detail = "VM ID: {}<br/>".format(vm_dict["VM_ID"])
 | |
|             except ValueError as ve:
 | |
|                 logger.error(
 | |
|                     "Could not parse VM in metadata {}. Detail {}".format(
 | |
|                         self.metadata, str(ve)
 | |
|                     )
 | |
|                 )
 | |
|             vm_conf = StripeUtils.get_vm_config_from_stripe_id(
 | |
|                 self.stripe_plan.stripe_plan_id
 | |
|             )
 | |
|             if vm_conf is not None:
 | |
|                 item_detail += ("<b>Cores</b>: {}<br/><b>RAM</b>: {} GB<br/>"
 | |
|                                 "<b>SSD</b>: {} GB<br/>").format(
 | |
|                     vm_conf['cores'], int(float(vm_conf['ram'])),
 | |
|                     vm_conf['ssd']
 | |
|                 )
 | |
|         return item_detail
 | |
| 
 | |
| 
 | |
| class VMDetail(models.Model):
 | |
|     user = models.ForeignKey(CustomUser)
 | |
|     vm_id = models.IntegerField(default=0)
 | |
|     disk_size = models.FloatField(default=0.0)
 | |
|     cores = models.FloatField(default=0.0)
 | |
|     memory = models.FloatField(default=0.0)
 | |
|     configuration = models.CharField(default='', max_length=128)
 | |
|     ipv4 = models.TextField(default='')
 | |
|     ipv6 = models.TextField(default='')
 | |
|     created_at = models.DateTimeField(auto_now_add=True)
 | |
|     terminated_at = models.DateTimeField(null=True)
 | |
| 
 | |
|     def end_date(self):
 | |
|         end_date = self.terminated_at if self.terminated_at else timezone.now()
 | |
|         months = relativedelta(end_date, self.created_at).months or 1
 | |
|         end_date = self.created_at + relativedelta(months=months, days=-1)
 | |
|         return end_date
 | |
| 
 | |
| 
 | |
| class UserCardDetail(AssignPermissionsMixin, models.Model):
 | |
|     permissions = ('view_usercarddetail',)
 | |
|     stripe_customer = models.ForeignKey(StripeCustomer)
 | |
|     last4 = models.CharField(max_length=4)
 | |
|     brand = models.CharField(max_length=128)
 | |
|     card_id = models.CharField(max_length=100, blank=True, default='')
 | |
|     fingerprint = models.CharField(max_length=100)
 | |
|     exp_month = models.IntegerField(null=False)
 | |
|     exp_year = models.IntegerField(null=False)
 | |
|     preferred = models.BooleanField(default=False)
 | |
| 
 | |
|     class Meta:
 | |
|         permissions = (
 | |
|             ('view_usercarddetail', 'View User Card'),
 | |
|         )
 | |
| 
 | |
|     @classmethod
 | |
|     def create(cls, stripe_customer=None, last4=None, brand=None,
 | |
|                fingerprint=None, exp_month=None, exp_year=None, card_id=None,
 | |
|                preferred=False):
 | |
|         instance = cls.objects.create(
 | |
|             stripe_customer=stripe_customer, last4=last4, brand=brand,
 | |
|             fingerprint=fingerprint, exp_month=exp_month, exp_year=exp_year,
 | |
|             card_id=card_id, preferred=preferred
 | |
|         )
 | |
|         instance.assign_permissions(stripe_customer.user)
 | |
|         return instance
 | |
| 
 | |
|     @classmethod
 | |
|     def get_all_cards_list(cls, stripe_customer):
 | |
|         """
 | |
|         Get all the cards of the given customer as a list
 | |
| 
 | |
|         :param stripe_customer: The StripeCustomer object
 | |
|         :return: A list of all cards; an empty list if the customer object is
 | |
|                  None
 | |
|         """
 | |
|         cards_list = []
 | |
|         if stripe_customer is None:
 | |
|             return cards_list
 | |
|         user_card_details = UserCardDetail.objects.filter(
 | |
|             stripe_customer_id=stripe_customer.id
 | |
|         ).order_by('-preferred', 'id')
 | |
|         for card in user_card_details:
 | |
|             cards_list.append({
 | |
|                 'last4': card.last4, 'brand': card.brand, 'id': card.id,
 | |
|                 'exp_year': card.exp_year,
 | |
|                 'exp_month': '{:02d}'.format(card.exp_month),
 | |
|                 'preferred': card.preferred
 | |
|             })
 | |
|         return cards_list
 | |
| 
 | |
|     @classmethod
 | |
|     def get_or_create_user_card_detail(cls, stripe_customer, card_details):
 | |
|         """
 | |
|         A method that checks if a UserCardDetail object exists already
 | |
|         based upon the given card_details and creates it for the given
 | |
|         customer if it does not exist. It returns the UserCardDetail object
 | |
|         matching the given card_details if it exists.
 | |
| 
 | |
|         :param stripe_customer: The given StripeCustomer object to whom the
 | |
|                 card object should belong to
 | |
|         :param card_details: A dictionary identifying a given card
 | |
|         :return: UserCardDetail object
 | |
|         """
 | |
|         try:
 | |
|             if ('fingerprint' in card_details and 'exp_month' in card_details
 | |
|                     and 'exp_year' in card_details):
 | |
|                 card_detail = UserCardDetail.objects.get(
 | |
|                     stripe_customer=stripe_customer,
 | |
|                     fingerprint=card_details['fingerprint'],
 | |
|                     exp_month=card_details['exp_month'],
 | |
|                     exp_year=card_details['exp_year']
 | |
|                 )
 | |
|             else:
 | |
|                 raise UserCardDetail.DoesNotExist()
 | |
|         except UserCardDetail.DoesNotExist:
 | |
|             preferred = False
 | |
|             if 'preferred' in card_details:
 | |
|                 preferred = card_details['preferred']
 | |
|             card_detail = UserCardDetail.create(
 | |
|                 stripe_customer=stripe_customer,
 | |
|                 last4=card_details['last4'],
 | |
|                 brand=card_details['brand'],
 | |
|                 fingerprint=card_details['fingerprint'],
 | |
|                 exp_month=card_details['exp_month'],
 | |
|                 exp_year=card_details['exp_year'],
 | |
|                 card_id=card_details['card_id'],
 | |
|                 preferred=preferred
 | |
|             )
 | |
|         return card_detail
 | |
| 
 | |
|     @staticmethod
 | |
|     def set_default_card(stripe_api_cus_id, stripe_source_id):
 | |
|         """
 | |
|         Sets the given stripe source as the default source for the given
 | |
|         Stripe customer
 | |
|         :param stripe_api_cus_id: Stripe customer id
 | |
|         :param stripe_source_id: The Stripe source id
 | |
|         :return:
 | |
|         """
 | |
|         stripe_utils = StripeUtils()
 | |
|         cus_response = stripe_utils.get_customer(stripe_api_cus_id)
 | |
|         cu = cus_response['response_object']
 | |
|         cu.default_source = stripe_source_id
 | |
|         cu.save()
 | |
|         UserCardDetail.save_default_card_local(
 | |
|             stripe_api_cus_id, stripe_source_id
 | |
|         )
 | |
| 
 | |
|     @staticmethod
 | |
|     def set_default_card_from_stripe(stripe_api_cus_id):
 | |
|         stripe_utils = StripeUtils()
 | |
|         cus_response = stripe_utils.get_customer(stripe_api_cus_id)
 | |
|         cu = cus_response['response_object']
 | |
|         default_source = cu.default_source
 | |
|         if default_source is not None:
 | |
|             UserCardDetail.save_default_card_local(
 | |
|                 stripe_api_cus_id, default_source
 | |
|             )
 | |
| 
 | |
|     @staticmethod
 | |
|     def save_default_card_local(stripe_api_cus_id, card_id):
 | |
|         stripe_cust = StripeCustomer.objects.get(stripe_id=stripe_api_cus_id)
 | |
|         user_card_detail = UserCardDetail.objects.get(
 | |
|             stripe_customer=stripe_cust, card_id=card_id
 | |
|         )
 | |
|         for card in stripe_cust.usercarddetail_set.all():
 | |
|             card.preferred = False
 | |
|             card.save()
 | |
|         user_card_detail.preferred = True
 | |
|         user_card_detail.save()
 | |
| 
 | |
|     @staticmethod
 | |
|     def get_user_card_details(stripe_customer, card_details):
 | |
|         """
 | |
|         A utility function to check whether a StripeCustomer is already
 | |
|         associated with the card having given details
 | |
| 
 | |
|         :param stripe_customer:
 | |
|         :param card_details:
 | |
|         :return: The UserCardDetails object if it exists, None otherwise
 | |
|         """
 | |
|         try:
 | |
|             ucd = UserCardDetail.objects.get(
 | |
|                 stripe_customer=stripe_customer,
 | |
|                 fingerprint=card_details['fingerprint'],
 | |
|                 exp_month=card_details['exp_month'],
 | |
|                 exp_year=card_details['exp_year']
 | |
|             )
 | |
|             return ucd
 | |
|         except UserCardDetail.DoesNotExist:
 | |
|             return None
 | |
| 
 | |
| 
 | |
| class VATRates(AssignPermissionsMixin, models.Model):
 | |
|     start_date = models.DateField(blank=True, null=True)
 | |
|     stop_date = models.DateField(blank=True, null=True)
 | |
|     territory_codes = models.TextField(blank=True, default='')
 | |
|     currency_code = models.CharField(max_length=10)
 | |
|     rate = models.FloatField()
 | |
|     rate_type = models.TextField(blank=True, default='')
 | |
|     description = models.TextField(blank=True, default='') |