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86 lines
2.6 KiB
Python
86 lines
2.6 KiB
Python
"""cotisations.payment_utils.comnpay
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The module in charge of handling the negociation with Comnpay
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for online payment
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"""
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import time
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from random import randrange
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import base64
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import hashlib
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from collections import OrderedDict
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class Transaction():
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""" The class representing a transaction with all the functions
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used during the negociation
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"""
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def __init__(self, vad_number="", secret_key="", urlRetourOK="",
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urlRetourNOK="", urlIPN="", source="", typeTr="D"):
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self.vad_number = vad_number
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self.secret_key = secret_key
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self.urlRetourOK = urlRetourOK
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self.urlRetourNOK = urlRetourNOK
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self.urlIPN = urlIPN
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self.source = source
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self.typeTr = typeTr
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self.idTransaction = ""
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def buildSecretHTML(self, produit="Produit", montant="0.00",
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idTransaction=""):
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""" Build an HTML hidden form with the different parameters for the
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transaction
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"""
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if idTransaction == "":
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self.idTransaction = str(time.time())
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self.idTransaction += self.vad_number
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self.idTransaction += str(randrange(999))
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else:
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self.idTransaction = idTransaction
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array_tpe = OrderedDict(
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montant=str(montant),
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idTPE=self.vad_number,
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idTransaction=self.idTransaction,
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devise="EUR",
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lang='fr',
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nom_produit=produit,
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source=self.source,
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urlRetourOK=self.urlRetourOK,
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urlRetourNOK=self.urlRetourNOK,
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typeTr=str(self.typeTr)
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)
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if self.urlIPN != "":
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array_tpe['urlIPN'] = self.urlIPN
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array_tpe['key'] = self.secret_key
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strWithKey = base64.b64encode(bytes(
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'|'.join(array_tpe.values()),
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'utf-8'
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))
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del array_tpe["key"]
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array_tpe['sec'] = hashlib.sha512(strWithKey).hexdigest()
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ret = ""
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for key in array_tpe:
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ret += '<input type="hidden" name="{k}" value="{v}"/>'.format(
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k=key,
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v=array_tpe[key]
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)
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return ret
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@staticmethod
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def validSec(values, secret_key):
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""" Check if the secret value is correct """
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if "sec" in values:
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sec = values['sec']
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del values["sec"]
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strWithKey = hashlib.sha512(base64.b64encode(bytes(
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'|'.join(values.values()) + "|" + secret_key,
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'utf-8'
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))).hexdigest()
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return strWithKey.upper() == sec.upper()
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else:
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return False
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