""" DowCommerce class to process credit card payments with DowCommerce.com Modifications to support Dow Commerce API from code originally written by John Conde http://www.johnconde.net/blog/integrate-the-authorizenet-aim-api-with-python-3-2/ Unknown license, assuming public domain Modifed by Dave Stoll dave.stoll@gmail.com - modifed to support Dow Commerce API """ __all__ = ['DowCommerce'] from operator import itemgetter import urllib class DowCommerce: class DowCommerceError(Exception): def __init__(self, value): self.parameter = value def __str__(self): return str(self.parameter) def __init__(self, username=None, password=None, demomode=False): if not demomode: if str(username).strip() == '' or username is None: raise DowCommerce.DowCommerceError('No username provided') if str(password).strip() == '' or password is None: raise DowCommerce.DowCommerceError('No password provided') else: username = 'demo' password = 'password' self.proxy = None self.delimiter = '&' self.results = {} self.error = True self.success = False self.declined = False self.url = 'https://secure.dowcommerce.net/api/transact.php' self.parameters = {} self.setParameter('username', username) self.setParameter('password', password) def process(self): encoded_args = urllib.urlencode(self.parameters) if self.proxy is None: results = str(urllib.urlopen( self.url, encoded_args).read()).split(self.delimiter) else: opener = urllib.FancyURLopener(self.proxy) opened = opener.open(self.url, encoded_args) try: results = str(opened.read()).split(self.delimiter) finally: opened.close() for result in results: (key, val) = result.split('=') self.results[key] = val if self.results['response'] == '1': self.error = False self.success = True self.declined = False elif self.results['response'] == '2': self.error = False self.success = False self.declined = True elif self.results['response'] == '3': self.error = True self.success = False self.declined = False else: self.error = True self.success = False self.declined = False raise DowCommerce.DowCommerceError(self.results) def setTransaction( self, creditcard, expiration, total, cvv=None, orderid=None, orderdescription=None, ipaddress=None, tax=None, shipping=None, firstname=None, lastname=None, company=None, address1=None, address2=None, city=None, state=None, zipcode=None, country=None, phone=None, fax=None, emailaddress=None, website=None, shipping_firstname=None, shipping_lastname=None, shipping_company=None, shipping_address1=None, shipping_address2=None, shipping_city=None, shipping_state=None, shipping_zipcode=None, shipping_country=None, shipping_emailaddress=None): if str(creditcard).strip() == '' or creditcard is None: raise DowCommerce.DowCommerceError('No credit card number passed to setTransaction(): {0}'.format(creditcard)) if str(expiration).strip() == '' or expiration is None: raise DowCommerce.DowCommerceError('No expiration number passed to setTransaction(): {0}'.format(expiration)) if str(total).strip() == '' or total is None: raise DowCommerce.DowCommerceError('No total amount passed to setTransaction(): {0}'.format(total)) self.setParameter('ccnumber', creditcard) self.setParameter('ccexp', expiration) self.setParameter('amount', total) if cvv: self.setParameter('cvv', cvv) if orderid: self.setParameter('orderid', orderid) if orderdescription: self.setParameter('orderdescription', orderdescription) if ipaddress: self.setParameter('ipaddress', ipaddress) if tax: self.setParameter('tax', tax) if shipping: self.setParameter('shipping', shipping) ## billing info if firstname: self.setParameter('firstname', firstname) if lastname: self.setParameter('lastname', lastname) if company: self.setParameter('company', company) if address1: self.setParameter('address1', address1) if address2: self.setParameter('address2', address2) if city: self.setParameter('city', city) if state: self.setParameter('state', state) if zipcode: self.setParameter('zip', zipcode) if country: self.setParameter('country', country) if phone: self.setParameter('phone', phone) if fax: self.setParameter('fax', fax) if emailaddress: self.setParameter('email', emailaddress) if website: self.setParameter('website', website) ## shipping info if shipping_firstname: self.setParameter('shipping_firstname', shipping_firstname) if shipping_lastname: self.setParameter('shipping_lastname', shipping_lastname) if shipping_company: self.setParameter('shipping_company', shipping_company) if shipping_address1: self.setParameter('shipping_address1', shipping_address1) if shipping_address2: self.setParameter('shipping_address2', shipping_address2) if shipping_city: self.setParameter('shipping_city', shipping_city) if shipping_state: self.setParameter('shipping_state', shipping_state) if shipping_zipcode: self.setParameter('shipping_zip', shipping_zipcode) if shipping_country: self.setParameter('shipping_country', shipping_country) def setTransactionType(self, transtype=None): types = ['sale', 'auth', 'credit'] if transtype.lower() not in types: raise DowCommerce.DowCommerceError('Incorrect Transaction Type passed to setTransactionType(): {0}'.format(transtype)) self.setParameter('type', transtype.lower()) def setProxy(self, proxy=None): if str(proxy).strip() == '' or proxy is None: raise DowCommerce.DowCommerceError('No proxy passed to setProxy()') self.proxy = {'http': str(proxy).strip()} def setParameter(self, key=None, value=None): if key is not None and value is not None and str(key).strip() != '' and str(value).strip() != '': self.parameters[key] = str(value).strip() else: raise DowCommerce.DowCommerceError('Incorrect parameters passed to setParameter(): {0}:{1}'.format(key, value)) def isApproved(self): return self.success def isDeclined(self): return self.declined def isError(self): return self.error def getResultResponseShort(self): responses = ['', 'Approved', 'Declined', 'Error'] return responses[int(self.results['response'])] def getFullResponse(self): return self.results def getResponseText(self): return self.results['responsetext'] def test(): import socket import sys from time import time ## TEST VALUES FROM API DOC: # Visa: 4111111111111111 # MasterCard 5431111111111111 # DiscoverCard: 6011601160116611 # American Express: 341111111111111 # Expiration: 10/10 # Amount: > 1.00 (( passing less than $1.00 will cause it to be declined )) # CVV: 999 creditcard = '4111111111111111' expiration = '1010' total = '1.00' cvv = '999' tax = '0.00' orderid = str(time())[4:10] # get a random invoice number try: payment = DowCommerce(demomode=True) payment.setTransaction( creditcard, expiration, total, cvv=cvv, tax=tax, orderid=orderid, orderdescription='Test Transaction', firstname='John', lastname='Doe', company='Acme', address1='123 Min Street', city='Hometown', state='VA', zipcode='12345', country='US', phone='888-555-1212', emailaddress='john@noemail.local', ipaddress='192.168.1.1') payment.process() if payment.isApproved(): print 'Payment approved!' print payment.getFullResponse() elif payment.isDeclined(): print 'Your credit card was declined by your bank' elif payment.isError(): raise DowCommerce.DowCommerceError('An uncaught error occurred') except DowCommerce.DowCommerceError, e: print "Exception thrown:", e print 'An error occured' print 'approved', payment.isApproved() print 'declined', payment.isDeclined() print 'error', payment.isError() if __name__ == '__main__': test()