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#!/usr/bin/env python3
from sys import argv
from requests import post, get, put
from json import dumps
def main():
clientAPIRoot, issuerAPIRoot = argv[1:]
# Construct a voucher that's acceptable to various parts of the system.
voucher = "a" * 44
zkapauthz = clientAPIRoot + "/storage-plugins/privatestorageio-zkapauthz-v1"
# Simulate a payment for a voucher.
post(
issuerAPIRoot + "/v1/stripe/webhook",
dumps(charge_succeeded_json(voucher)),
headers={"content-type": "application/json"},
)
# Tell the client to redeem the voucher.
zkapauthz + "/voucher",
dumps({"voucher": voucher}),
)
if response.status_code // 100 != 2:
print("Unexpected response: {}".format(response.content))
response.raise_for_status()
# Poll the vouchers list for a while to see it get redeemed.
expected = {"version": 1, "number": voucher, "redeemed": True}
def find_redeemed_voucher():
response = get(zkapauthz + "/voucher/" + voucher)
response.raise_for_status()
actual = response.json()
print("Actual response: {}".format(actual))
return expected == actual
retry(
"find redeemed voucher",
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)
def retry(description, f):
for i in range(60):
print("trying to {}...".format(description))
if f():
print("{} succeeded".format(description))
break
sleep(1.0)
raise ValueError("failed to {} after many tries".format(description))
def charge_succeeded_json(voucher):
# This structure copy/pasted from Stripe webhook web interface.
base_payload = {
"id": "evt_1FKSX2DeTd13VRuuhPaUDA2f",
"object": "event",
"api_version": "2016-07-06",
"created": 1568910660,
"data": {
"object": {
"id": "ch_1FKSX2DeTd13VRuuG9BXbqji",
"object": "charge",
"amount": 999,
"amount_refunded": 0,
"application": None,
"application_fee": None,
"application_fee_amount": None,
"balance_transaction": "txn_1FKSX2DeTd13VRuuqO1CJZ1e",
"billing_details": {
"address": {
"city": None,
"country": None,
"line1": None,
"line2": None,
"postal_code": None,
"state": None
},
"email": None,
"name": None,
"phone": None
},
"captured": True,
"created": 1568910660,
"currency": "usd",
"customer": None,
"description": None,
"destination": None,
"dispute": None,
"failure_code": None,
"failure_message": None,
"fraud_details": {
},
"invoice": None,
"livemode": False,
"metadata": {
"Voucher": None,
},
"on_behalf_of": None,
"order": None,
"outcome": {
"network_status": "approved_by_network",
"reason": None,
"risk_level": "normal",
"risk_score": 44,
"seller_message": "Payment complete.",
"type": "authorized"
},
"paid": True,
"payment_intent": None,
"payment_method": "card_1FKSX2DeTd13VRuus5VEjmjG",
"payment_method_details": {
"card": {
"brand": "visa",
"checks": {
"address_line1_check": None,
"address_postal_code_check": None,
"cvc_check": None
},
"country": "US",
"exp_month": 9,
"exp_year": 2020,
"fingerprint": "HTJeRR4MXhAAkctF",
"funding": "credit",
"last4": "4242",
"three_d_secure": None,
"wallet": None
},
"type": "card"
},
"receipt_email": None,
"receipt_number": None,
"receipt_url": "https://pay.stripe.com/receipts/acct_198xN4DeTd13VRuu/ch_1FKSX2DeTd13VRuuG9BXbqji/rcpt_Fq8oAItSiNmcm0beiie6lUYin920E7a",
"refunded": False,
"refunds": {
"object": "list",
"data": [
],
"has_more": False,
"total_count": 0,
"url": "/v1/charges/ch_1FKSX2DeTd13VRuuG9BXbqji/refunds"
},
"review": None,
"shipping": None,
"source": {
"id": "card_1FKSX2DeTd13VRuus5VEjmjG",
"object": "card",
"address_city": None,
"address_country": None,
"address_line1": None,
"address_line1_check": None,
"address_line2": None,
"address_state": None,
"address_zip": None,
"address_zip_check": None,
"brand": "Visa",
"country": "US",
"customer": None,
"cvc_check": None,
"dynamic_last4": None,
"exp_month": 9,
"exp_year": 2020,
"fingerprint": "HTJeRR4MXhAAkctF",
"funding": "credit",
"last4": "4242",
"metadata": {
},
"name": None,
"tokenization_method": None
},
"source_transfer": None,
"statement_descriptor": None,
"statement_descriptor_suffix": None,
"status": "succeeded",
"transfer_data": None,
"transfer_group": None
}
},
"livemode": False,
"pending_webhooks": 2,
"request": "req_5ozjOIAcOkvVUK",
"type": "charge.succeeded"
}
# Indicate the voucher the payment references.
base_payload["data"]["object"]["metadata"]["Voucher"] = voucher
return base_payload
if __name__ == '__main__':
main()