mirror of
https://github.com/samuelclay/NewsBlur.git
synced 2025-08-31 21:41:33 +00:00
90 lines
3.3 KiB
Python
90 lines
3.3 KiB
Python
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#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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from urllib import unquote_plus
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import urllib2
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from django.db import models
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from django.conf import settings
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from django.http import QueryDict
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from django.utils.http import urlencode
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from paypal.standard.models import PayPalStandardBase
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from paypal.standard.conf import POSTBACK_ENDPOINT, SANDBOX_POSTBACK_ENDPOINT
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from paypal.standard.pdt.signals import pdt_successful, pdt_failed
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# ### Todo: Move this logic to conf.py:
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# if paypal.standard.pdt is in installed apps
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# ... then check for this setting in conf.py
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class PayPalSettingsError(Exception):
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"""Raised when settings are incorrect."""
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try:
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IDENTITY_TOKEN = settings.PAYPAL_IDENTITY_TOKEN
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except:
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raise PayPalSettingsError("You must set PAYPAL_IDENTITY_TOKEN in settings.py. Get this token by enabling PDT in your PayPal account.")
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class PayPalPDT(PayPalStandardBase):
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format = u"<PDT: %s %s>"
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amt = models.DecimalField(max_digits=64, decimal_places=2, default=0, blank=True, null=True)
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cm = models.CharField(max_length=255, blank=True)
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sig = models.CharField(max_length=255, blank=True)
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tx = models.CharField(max_length=255, blank=True)
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st = models.CharField(max_length=32, blank=True)
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class Meta:
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db_table = "paypal_pdt"
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verbose_name = "PayPal PDT"
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def _postback(self):
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"""
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Perform PayPal PDT Postback validation.
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Sends the transaction ID and business token to PayPal which responses with
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SUCCESS or FAILED.
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"""
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postback_dict = dict(cmd="_notify-synch", at=IDENTITY_TOKEN, tx=self.tx)
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postback_params = urlencode(postback_dict)
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return urllib2.urlopen(self.get_endpoint(), postback_params).read()
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def get_endpoint(self):
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"""Use the sandbox when in DEBUG mode as we don't have a test_ipn variable in pdt."""
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if settings.DEBUG:
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return SANDBOX_POSTBACK_ENDPOINT
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else:
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return POSTBACK_ENDPOINT
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def _verify_postback(self):
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# ### Now we don't really care what result was, just whether a flag was set or not.
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from paypal.standard.pdt.forms import PayPalPDTForm
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result = False
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response_list = self.response.split('\n')
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response_dict = {}
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for i, line in enumerate(response_list):
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unquoted_line = unquote_plus(line).strip()
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if i == 0:
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self.st = unquoted_line
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if self.st == "SUCCESS":
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result = True
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else:
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if self.st != "SUCCESS":
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self.set_flag(line)
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break
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try:
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if not unquoted_line.startswith(' -'):
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k, v = unquoted_line.split('=')
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response_dict[k.strip()] = v.strip()
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except ValueError, e:
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pass
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qd = QueryDict('', mutable=True)
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qd.update(response_dict)
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qd.update(dict(ipaddress=self.ipaddress, st=self.st, flag_info=self.flag_info))
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pdt_form = PayPalPDTForm(qd, instance=self)
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pdt_form.save(commit=False)
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def send_signals(self):
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# Send the PDT signals...
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if self.flag:
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pdt_failed.send(sender=self)
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else:
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pdt_successful.send(sender=self)
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