Add a dummy payment backend

eopayment/dummy.py

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+import urllib
+import string
+try:
+    from cgi import parse_qs
+except:
+    from urlparse import parse_qs
+
+from common import PaymentCommon, URL
+
+__all__ = [ 'Payment' ]
+
+SERVICE_URL = 'http://dummy-payment.demo.entrouvert.com/'
+ALPHANUM = string.letters + string.digits
+
+class Payment(PaymentCommon):
+    description = {
+            'caption': 'Dummy payment backend',
+            'parameters': {
+                'direct_notification_url': {
+                    'caption': 'direct notification url',
+                },
+                'siret': {
+                    'caption': 'dummy siret parameter',
+                },
+            }
+    }
+
+    def __init__(self, options):
+        self.direct_notification_url = options['direct_notification_url']
+        self.siret = options['siret']
+
+    def request(self, montant, email=None, next_url=None):
+        transaction_id = self.transaction_id(30, ALPHANUM, 'dummy', self.siret)
+        query = {
+                'transaction_id': transaction_id,
+                'amount': montant,
+                'email': email,
+                'return_url': next_url or '',
+                'direct_notification_url': self.direct_notification_url
+        }
+        url = '%s?%s' % (SERVICE_URL, urllib.urlencode(query))
+        return transaction_id, URL, url
+
+    def response(self, query_string):
+        form = parse_qs(query_string)
+        transaction_id = form.get('transaction_id',[''])[0]
+
+        if 'signed' in form:
+            content = 'signature ok'
+        else:
+            content = None
+        return 'ok' in form and transaction_id and True, transaction_id, form, content
+
+if __name__ == '__main__':
+    options = {
+            'direct_notification_url': 'http://example.com/direct_notification_url',
+            'siret': '1234'
+    }
+    p = Payment(options)
+    print p.request(10.00, email='toto@example.com', next_url='http://example.com/retour')
+    retour = 'http://example.com/retour?amount=10.0&direct_notification_url=http%3A%2F%2Fexample.com%2Fdirect_notification_url&email=toto%40example.com&transaction_id=6Tfw2e1bPyYnz7CedZqvdHt7T9XX6T&return_url=http%3A%2F%2Fexample.com%2Fretour&nok=1'
+    r = p.response(retour.split('?',1)[1])
+    assert not r[0] 
+    assert r[1] == '6Tfw2e1bPyYnz7CedZqvdHt7T9XX6T'
+    assert r[3] is None
+    retour = 'http://example.com/retour?amount=10.0&direct_notification_url=http%3A%2F%2Fexample.com%2Fdirect_notification_url&email=toto%40example.com&transaction_id=6Tfw2e1bPyYnz7CedZqvdHt7T9XX6T&return_url=http%3A%2F%2Fexample.com%2Fretour&ok=1&signed=1'
+    r = p.response(retour.split('?',1)[1])
+    assert r[0] 
+    assert r[1] == '6Tfw2e1bPyYnz7CedZqvdHt7T9XX6T'
+    assert r[3] == 'signature ok'
+
+