zulip/zerver/webhooks/stripe/view.py

178 lines
7.9 KiB
Python

# Webhooks for external integrations.
from __future__ import absolute_import
from django.utils.translation import ugettext as _
from zerver.lib.actions import check_send_message
from zerver.lib.response import json_success, json_error
from zerver.decorator import REQ, has_request_variables, api_key_only_webhook_view
from zerver.models import UserProfile
from django.http import HttpRequest, HttpResponse
from typing import Dict, Any, Optional, Text
from datetime import datetime
import time
@api_key_only_webhook_view('Stripe')
@has_request_variables
def api_stripe_webhook(request, user_profile,
payload=REQ(argument_type='body'), stream=REQ(default='test'),
topic=REQ(default=None)):
# type: (HttpRequest, UserProfile, Dict[str, Any], Text, Optional[Text]) -> HttpResponse
body = None
event_type = payload["type"]
try:
data_object = payload["data"]["object"]
if event_type.startswith('charge'):
charge_url = "https://dashboard.stripe.com/payments/{}"
amount_string = amount(payload["data"]["object"]["amount"], payload["data"]["object"]["currency"])
if event_type.startswith('charge.dispute'):
charge_id = data_object["charge"]
link = charge_url.format(charge_id)
body_template = "A charge dispute for **{amount}** has been {rest}.\n"\
"The charge in dispute {verb} **[{charge}]({link})**."
if event_type == "charge.dispute.closed":
rest = "closed as **{}**".format(data_object['status'])
verb = 'was'
else:
rest = "created"
verb = 'is'
body = body_template.format(amount=amount_string, rest=rest, verb=verb, charge=charge_id, link=link)
else:
charge_id = data_object["id"]
link = charge_url.format(charge_id)
body_template = "A charge with id **[{charge_id}]({link})** for **{amount}** has {verb}."
if event_type == "charge.failed":
verb = "failed"
else:
verb = "succeeded"
body = body_template.format(charge_id=charge_id, link=link, amount=amount_string, verb=verb)
if topic is None:
topic = "Charge {}".format(charge_id)
elif event_type.startswith('customer'):
object_id = data_object["id"]
if event_type.startswith('customer.subscription'):
link = "https://dashboard.stripe.com/subscriptions/{}".format(object_id)
if event_type == "customer.subscription.created":
amount_string = amount(data_object["plan"]["amount"], data_object["plan"]["currency"])
body_template = "A new customer subscription for **{amount}** " \
"every **{interval}** has been created.\n" \
"The subscription has id **[{id}]({link})**."
body = body_template.format(
amount=amount_string,
interval=data_object['plan']['interval'],
id=object_id,
link=link
)
elif event_type == "customer.subscription.deleted":
body_template = "The customer subscription with id **[{id}]({link})** was deleted."
body = body_template.format(id=object_id, link=link)
else: # customer.subscription.trial_will_end
DAY = 60 * 60 * 24 # seconds in a day
# days_left should always be three according to
# https://stripe.com/docs/api/python#event_types, but do the
# computation just to be safe.
days_left = int((data_object["trial_end"] - time.time() + DAY//2) // DAY)
body_template = "The customer subscription trial with id **[{id}]({link})** will end in {days} days."
body = body_template.format(id=object_id, link=link, days=days_left)
else:
link = "https://dashboard.stripe.com/customers/{}".format(object_id)
body_template = "{beginning} customer with id **[{id}]({link})** {rest}."
if event_type == "customer.created":
beginning = "A new"
if data_object["email"] is None:
rest = "has been created"
else:
rest = "and email **{}** has been created".format(data_object['email'])
else:
beginning = "A"
rest = "has been deleted"
body = body_template.format(beginning=beginning, id=object_id, link=link, rest=rest)
if topic is None:
topic = "Customer {}".format(object_id)
elif event_type == "invoice.payment_failed":
object_id = data_object['id']
link = "https://dashboard.stripe.com/invoices/{}".format(object_id)
amount_string = amount(data_object["amount_due"], data_object["currency"])
body_template = "An invoice payment on invoice with id **[{id}]({link})** and "\
"with **{amount}** due has failed."
body = body_template.format(id=object_id, amount=amount_string, link=link)
if topic is None:
topic = "Invoice {}".format(object_id)
elif event_type.startswith('order'):
object_id = data_object['id']
link = "https://dashboard.stripe.com/orders/{}".format(object_id)
amount_string = amount(data_object["amount"], data_object["currency"])
body_template = "{beginning} order with id **[{id}]({link})** for **{amount}** has {end}."
if event_type == "order.payment_failed":
beginning = "An order payment on"
end = "failed"
elif event_type == "order.payment_succeeded":
beginning = "An order payment on"
end = "succeeded"
else:
beginning = "The"
end = "been updated"
body = body_template.format(beginning=beginning, id=object_id, link=link, amount=amount_string, end=end)
if topic is None:
topic = "Order {}".format(object_id)
elif event_type.startswith('transfer'):
object_id = data_object['id']
link = "https://dashboard.stripe.com/transfers/{}".format(object_id)
amount_string = amount(data_object["amount"], data_object["currency"])
body_template = "The transfer with description **{description}** and id **[{id}]({link})** " \
"for amount **{amount}** has {end}."
if event_type == "transfer.failed":
end = 'failed'
else:
end = "been paid"
body = body_template.format(
description=data_object['description'],
id=object_id,
link=link,
amount=amount_string,
end=end
)
if topic is None:
topic = "Transfer {}".format(object_id)
except KeyError as e:
return json_error(_("Missing key {} in JSON".format(str(e))))
if body is None:
return json_error(_("We don't support {} event".format(event_type)))
check_send_message(user_profile, request.client, 'stream', [stream], topic, body)
return json_success()
def amount(amount, currency):
# type: (int, str) -> str
# zero-decimal currencies
zero_decimal_currencies = ["bif", "djf", "jpy", "krw", "pyg", "vnd", "xaf", "xpf", "clp", "gnf", "kmf", "mga", "rwf", "vuv", "xof"]
if currency in zero_decimal_currencies:
return str(amount) + currency
else:
return '{0:.02f}'.format(float(amount) * 0.01) + currency