84 lines
3.5 KiB
Python
84 lines
3.5 KiB
Python
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# Part of Odoo. See LICENSE file for full copyright and licensing details.
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import hmac
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import logging
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import pprint
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from werkzeug.exceptions import Forbidden
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from odoo import http
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from odoo.exceptions import ValidationError
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from odoo.http import request
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_logger = logging.getLogger(__name__)
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class FlutterwaveController(http.Controller):
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_return_url = '/payment/flutterwave/return'
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_webhook_url = '/payment/flutterwave/webhook'
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@http.route(_return_url, type='http', methods=['GET'], auth='public')
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def flutterwave_return_from_checkout(self, **data):
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""" Process the notification data sent by Flutterwave after redirection from checkout.
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:param dict data: The notification data.
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"""
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_logger.info("Handling redirection from Flutterwave with data:\n%s", pprint.pformat(data))
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# Handle the notification data.
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if data.get('status') != 'cancelled':
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request.env['payment.transaction'].sudo()._handle_notification_data('flutterwave', data)
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else: # The customer cancelled the payment by clicking on the close button.
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pass # Don't try to process this case because the transaction id was not provided.
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# Redirect the user to the status page.
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return request.redirect('/payment/status')
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@http.route(_webhook_url, type='http', methods=['POST'], auth='public', csrf=False)
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def flutterwave_webhook(self):
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""" Process the notification data sent by Flutterwave to the webhook.
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:return: An empty string to acknowledge the notification.
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:rtype: str
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"""
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data = request.get_json_data()
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_logger.info("Notification received from Flutterwave with data:\n%s", pprint.pformat(data))
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if data['event'] == 'charge.completed':
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try:
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# Check the origin of the notification.
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tx_sudo = request.env['payment.transaction'].sudo()._get_tx_from_notification_data(
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'flutterwave', data['data']
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)
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signature = request.httprequest.headers.get('verif-hash')
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self._verify_notification_signature(signature, tx_sudo)
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# Handle the notification data.
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notification_data = data['data']
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tx_sudo._handle_notification_data('flutterwave', notification_data)
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except ValidationError: # Acknowledge the notification to avoid getting spammed.
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_logger.exception("Unable to handle the notification data; skipping to acknowledge")
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return request.make_json_response('')
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@staticmethod
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def _verify_notification_signature(received_signature, tx_sudo):
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""" Check that the received signature matches the expected one.
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:param dict received_signature: The signature received with the notification data.
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:param recordset tx_sudo: The sudoed transaction referenced by the notification data, as a
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`payment.transaction` record.
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:return: None
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:raise Forbidden: If the signatures don't match.
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"""
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# Check for the received signature.
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if not received_signature:
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_logger.warning("Received notification with missing signature.")
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raise Forbidden()
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# Compare the received signature with the expected signature.
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expected_signature = tx_sudo.provider_id.flutterwave_webhook_secret
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if not hmac.compare_digest(received_signature, expected_signature):
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_logger.warning("Received notification with invalid signature.")
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raise Forbidden()
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