265 lines
9.2 KiB
Python
265 lines
9.2 KiB
Python
from regluit.core.models import Campaign, Wishlist
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from regluit.payment.models import Transaction, Receiver
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from django.contrib.auth.models import User
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from regluit.payment.parameters import *
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from regluit.payment.paypal import Pay, IPN, IPN_TYPE_PAYMENT, IPN_TYPE_PREAPPROVAL, Preapproval
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import uuid
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import traceback
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class PaymentManager( object ):
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'''
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processIPN
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Turns a request from Paypal into an IPN, and extracts info. We support 2 types of IPNs:
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1) Payment - Used for instant payments and to execute pre-approved payments
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2) Preapproval - Used for comfirmation of a preapproval
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'''
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def processIPN(self, request):
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try:
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ipn = IPN(request)
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if ipn.success():
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print "Valid IPN"
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if ipn.transaction_type == IPN_TYPE_PAYMENT:
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if ipn.preapproval_key:
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key = ipn.preapproval_key
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else:
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key = ipn.key
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t = Transaction.objects.get(reference=key)
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t.status = ipn.status
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for item in ipn.transactions:
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r = Receiver.objects.get(transaction=t, email=item['receiver'])
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r.status = item['status_for_sender_txn']
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r.save()
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t.save()
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elif ipn.transaction_type == IPN_TYPE_PREAPPROVAL:
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t = Transaction.objects.get(reference=ipn.preapproval_key)
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t.status = ipn.status
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t.save()
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else:
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print "IPN: Unknown Transaction Type: " + ipn.transaction_type
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else:
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print ipn.error
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except:
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traceback.print_exc()
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'''
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query_campaign
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Returns either an amount or list of transactions for a campaign
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summary: if true, return a float of the total, if false, return a list of transactions
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pledged: include amounts pledged
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authorized: include amounts pre-authorized
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return value: either a float summary or a list of transactions
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'''
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def query_campaign(self, campaign, summary=False, pledged=True, authorized=True):
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if pledged:
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pledged_list = Transaction.objects.filter(campaign=campaign,
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type=PAYMENT_TYPE_INSTANT,
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status="COMPLETED")
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else:
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pledged_list = []
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if authorized:
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authorized_list = Transaction.objects.filter(campaign=campaign,
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type=PAYMENT_TYPE_AUTHORIZATION,
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status="ACTIVE")
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else:
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authorized_list = []
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if summary:
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pledged_amount = 0.0
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authorized_amount = 0.0
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for t in pledged_list:
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pledged_amount += t.amount
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for t in authorized_list:
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authorized_amount += t.amount
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amount = pledged_amount + authorized_amount
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return amount
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else:
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return pledged_list | authorized_list
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'''
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execute_campaign
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attempts to execute all pending transactions for a campaign.
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return value: returns a list of transactions with the status of each receiver/transaction updated
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'''
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def execute_campaign(self, campaign):
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transactions = Transaction.objects.filter(campaign=campaign, status="ACTIVE")
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for t in transactions:
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receiver_list = [{'email':'jakace_1309677337_biz@gmail.com', 'amount':t.amount * 0.80},
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{'email':'boogus@gmail.com', 'amount':t.amount * 0.20}]
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self.execute_transaction(t, receiver_list)
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return transactions
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'''
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execute_transaction
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executes a single pending transaction.
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transaction: the transaction object to execute
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receiver_list: a list of receivers for the transaction, in this format:
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[
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{'email':'email-1', 'amount':amount1},
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{'email':'email-2', 'amount':amount2}
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]
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return value: a bool indicating the success or failure of the process. Please check the transaction status
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after the IPN has completed for full information
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'''
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def execute_transaction(self, transaction, receiver_list):
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for r in receiver_list:
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receiver = Receiver.objects.create(email=r['email'], amount=r['amount'], currency=transaction.currency, status="ACTIVE", transaction=transaction)
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p = Pay(transaction, receiver_list)
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transaction.status = p.status()
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if p.status() == 'COMPLETED':
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print "Execute Success"
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return True
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else:
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transaction.error = p.error()
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print "Execute Error: " + p.error()
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return False
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'''
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authorize
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authorizes a set amount of money to be collected at a later date
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currency: a 3-letter paypal currency code, i.e. USD
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target: a defined target type, i.e. TARGET_TYPE_CAMPAIGN, TARGET_TYPE_LIST, TARGET_TYPE_NONE
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amount: the amount to authorize
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campaign: optional campaign object(to be set with TARGET_TYPE_CAMPAIGN)
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list: optional list object(to be set with TARGET_TYPE_LIST)
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user: optional user object
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return value: a tuple of the new transaction object and a re-direct url. If the process fails,
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the redirect url will be None
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'''
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def authorize(self, currency, target, amount, campaign=None, list=None, user=None):
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t = Transaction.objects.create(amount=amount,
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type=PAYMENT_TYPE_AUTHORIZATION,
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target=target,
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currency=currency,
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secret = str(uuid.uuid1()),
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status='NONE',
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campaign=campaign,
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list=list,
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user=user
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)
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p = Preapproval(t, amount)
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if p.status() == 'Success':
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t.status = 'CREATED'
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t.reference = p.paykey()
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t.save()
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print "Authorize Success: " + p.next_url()
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return t, p.next_url()
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else:
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t.status = 'ERROR'
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t.error = p.error()
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t.save()
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print "Authorize Error: " + p.error()
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return t, None
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'''
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pledge
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Performs an instant payment
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currency: a 3-letter paypal currency code, i.e. USD
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target: a defined target type, i.e. TARGET_TYPE_CAMPAIGN, TARGET_TYPE_LIST, TARGET_TYPE_NONE
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receiver_list: a list of receivers for the transaction, in this format:
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[
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{'email':'email-1', 'amount':amount1},
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{'email':'email-2', 'amount':amount2}
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]
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campaign: optional campaign object(to be set with TARGET_TYPE_CAMPAIGN)
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list: optional list object(to be set with TARGET_TYPE_LIST)
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user: optional user object
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return value: a tuple of the new transaction object and a re-direct url. If the process fails,
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the redirect url will be None
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'''
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def pledge(self, currency, target, receiver_list, campaign=None, list=None, user=None):
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amount = 0.0
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for r in receiver_list:
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amount += r['amount']
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t = Transaction.objects.create(amount=amount,
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type=PAYMENT_TYPE_INSTANT,
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target=target,
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currency=currency,
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secret = str(uuid.uuid1()),
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status='NONE',
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campaign=campaign,
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list=list,
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user=user
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)
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for r in receiver_list:
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receiver = Receiver.objects.create(email=r['email'], amount=r['amount'], currency=currency, status="None", transaction=t)
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p = Pay(t, receiver_list)
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t.status = p.status()
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if p.status() == 'CREATED':
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t.reference = p.paykey()
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t.save()
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print "Pledge Success: " + p.next_url()
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return t, p.next_url()
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else:
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t.error = p.error()
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t.save()
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print "Pledge Status: " + p.status() + "Error: " + p.error()
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return t, None
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