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April 29, 2015 12:00
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MultiSafepay API for Python
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| import uuid | |
| import random | |
| import hashlib | |
| import requests | |
| from xml.sax.saxutils import escape | |
| from xml.etree import ElementTree | |
| transaction_template = '''<?xml version="1.0" encoding="UTF-8" ?> | |
| <redirecttransaction ua="Example 1.0"> | |
| <merchant> | |
| <account>%(account)s</account> | |
| <site_id>%(site_id)s</site_id> | |
| <site_secure_code>%(site_secure_code)s</site_secure_code> | |
| <notification_url>%(notification_url)s</notification_url> | |
| <cancel_url>%(cancel_url)s</cancel_url> | |
| <redirect_url>%(redirect_url)s</redirect_url> | |
| <close_window>false</close_window> | |
| </merchant> | |
| <customer> | |
| <locale>%(locale)s</locale> | |
| <ipaddress>%(ipaddress)s</ipaddress> | |
| <forwardedip></forwardedip> | |
| <firstname></firstname> | |
| <lastname></lastname> | |
| <address1></address1> | |
| <address2></address2> | |
| <housenumber></housenumber> | |
| <zipcode></zipcode> | |
| <city></city> | |
| <state></state> | |
| <country></country> | |
| <phone></phone> | |
| <email>%(email)s</email> | |
| </customer> | |
| <transaction> | |
| <id>%(transaction_id)s</id> | |
| <currency>%(currency)s</currency> | |
| <amount>%(amount)s</amount> | |
| <description>%(description)s</description> | |
| <var1></var1> | |
| <var2></var2> | |
| <var3></var3> | |
| <items></items> | |
| <manual>false</manual> | |
| <gateway></gateway> | |
| <daysactive>%(daysactive)s</daysactive> | |
| </transaction> | |
| <signature>%(signature)s</signature> | |
| </redirecttransaction>''' | |
| status_template = """ | |
| <?xml version="1.0" encoding="UTF-8"?> | |
| <status ua="custom-1.1"> | |
| <merchant> | |
| <account>%(account)s</account> | |
| <site_id>%(site_id)s</site_id> | |
| <site_secure_code>%(site_secure_code)s</site_secure_code> | |
| </merchant> | |
| <transaction> | |
| <id>%(transaction_id)s</id> | |
| </transaction> | |
| </status>""" | |
| class MSPError(Exception): | |
| def __init__(self, code, description): | |
| self.code = code | |
| self.description = description | |
| def __str__(self): | |
| return '%s: %s' % (self.code, self.description) | |
| class Transaction: | |
| TEST_API_URL = 'https://testapi.multisafepay.com/ewx/' | |
| PROD_API_URL = 'https://api.multisafepay.com/ewx/' | |
| KEYS_FOR_HASH = ('amount', 'currency', 'account', 'site_id', 'transaction_id') | |
| STATUSES = { | |
| 'completed': 1, # completed successfully | |
| 'initialized': 6, # created, but uncompleted | |
| 'uncleared': 6, # created, but not yet exempted (credit cards) | |
| 'void': 2, # cancelled | |
| 'declined': 2, # rejected | |
| 'refunded': 3, # refunded | |
| 'expired': 5, # expired | |
| 'shipped': 1 # shipped | |
| } | |
| def __init__(self, test=True, **kwargs): | |
| self.kwargs = kwargs | |
| self.kwargs['transaction_id'] = self.new_transaction_id | |
| self.kwargs['signature'] = self.signature | |
| if test: | |
| self.API_URL = self.TEST_API_URL | |
| else: | |
| self.API_URL = self.PROD_API_URL | |
| self.escape_kwargs() | |
| def start(self): | |
| """ Post to msp, this returns the payment url """ | |
| xml_str = transaction_template % self.kwargs | |
| return self.get_payment_url(self.API_URL, xml_str) | |
| def escape_kwargs(self): | |
| for k, v in self.kwargs.items(): | |
| self.kwargs[k] = escape(v) | |
| @property | |
| def signature(self): | |
| line = ''.join([self.kwargs[key] for key in self.KEYS_FOR_HASH]) | |
| return hashlib.md5(line.encode()).hexdigest() | |
| @staticmethod | |
| def get_payment_url(url, xml_str): | |
| r = requests.get(url, data=xml_str) | |
| return Transaction.get_data_by_path(r.text, 'transaction/payment_url') | |
| @staticmethod | |
| def get_data_by_path(data, path): | |
| # from lxml import etree | |
| # root = etree.fromstring(data.encode()) | |
| # print(etree.tostring(root, pretty_print=True).decode()) | |
| tree = ElementTree.fromstring(data) | |
| result = tree.get('result') | |
| if result == 'ok': | |
| return tree.find(path).text | |
| else: | |
| code = tree.find('error/code').text | |
| description = tree.find('error/description').text | |
| raise MSPError(code, description) | |
| @staticmethod | |
| def get_transaction_status(test=True, **kwargs): | |
| if test: | |
| url = Transaction.TEST_API_URL | |
| else: | |
| url = Transaction.PROD_API_URL | |
| xml_str = status_template % kwargs | |
| r = requests.get(url, data=xml_str) | |
| status = Transaction.get_data_by_path(r.text, 'ewallet/status') | |
| return Transaction.STATUSES[status] | |
| @property | |
| def new_transaction_id(self): | |
| return 'MSP_{0}{1}'.format(uuid.uuid4().hex[4:26], str(random.randint(10, 99))) | |
| def __str__(self): | |
| return str(self.kwargs) |
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