105 lines
3.8 KiB
Python
105 lines
3.8 KiB
Python
import json
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import asyncio
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import hmac
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from http import HTTPStatus
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from os import getenv
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from typing import Optional, AsyncGenerator
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from requests import get, post
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from quart import request, url_for
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from .base import InvoiceResponse, PaymentResponse, PaymentStatus, Wallet, Unsupported
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class OpenNodeWallet(Wallet):
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"""https://developers.opennode.com/"""
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def __init__(self):
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endpoint = getenv("OPENNODE_API_ENDPOINT")
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self.endpoint = endpoint[:-1] if endpoint.endswith("/") else endpoint
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self.auth_admin = {"Authorization": getenv("OPENNODE_ADMIN_KEY")}
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self.auth_invoice = {"Authorization": getenv("OPENNODE_INVOICE_KEY")}
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def create_invoice(
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self, amount: int, memo: Optional[str] = None, description_hash: Optional[bytes] = None
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) -> InvoiceResponse:
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if description_hash:
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raise Unsupported("description_hash")
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r = post(
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url=f"{self.endpoint}/v1/charges",
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headers=self.auth_invoice,
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json={
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"amount": amount,
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"description": memo or "",
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"callback_url": url_for("webhook_listener", _external=True),
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},
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)
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ok, checking_id, payment_request, error_message = r.ok, None, None, None
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if r.ok:
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data = r.json()["data"]
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checking_id = data["id"]
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payment_request = data["lightning_invoice"]["payreq"]
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else:
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error_message = r.json()["message"]
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return InvoiceResponse(ok, checking_id, payment_request, error_message)
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def pay_invoice(self, bolt11: str) -> PaymentResponse:
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r = post(url=f"{self.endpoint}/v2/withdrawals", headers=self.auth_admin, json={"type": "ln", "address": bolt11})
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ok, checking_id, fee_msat, error_message = r.ok, None, 0, None
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if r.ok:
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data = r.json()["data"]
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checking_id, fee_msat = data["id"], data["fee"] * 1000
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else:
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error_message = r.json()["message"]
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return PaymentResponse(ok, checking_id, fee_msat, error_message)
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def get_invoice_status(self, checking_id: str) -> PaymentStatus:
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r = get(url=f"{self.endpoint}/v1/charge/{checking_id}", headers=self.auth_invoice)
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if not r.ok:
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return PaymentStatus(None)
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statuses = {"processing": None, "paid": True, "unpaid": False}
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return PaymentStatus(statuses[r.json()["data"]["status"]])
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def get_payment_status(self, checking_id: str) -> PaymentStatus:
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r = get(url=f"{self.endpoint}/v1/withdrawal/{checking_id}", headers=self.auth_admin)
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if not r.ok:
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return PaymentStatus(None)
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statuses = {"initial": None, "pending": None, "confirmed": True, "error": False, "failed": False}
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return PaymentStatus(statuses[r.json()["data"]["status"]])
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async def paid_invoices_stream(self) -> AsyncGenerator[str, None]:
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self.queue: asyncio.Queue = asyncio.Queue()
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while True:
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item = await self.queue.get()
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yield item
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self.queue.task_done()
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async def webhook_listener(self):
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print("a request!")
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text: str = await request.get_data()
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print("text", text)
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data = json.loads(text)
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if type(data) is not dict or "event" not in data or data["event"].get("name") != "wallet_receive":
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return "", HTTPStatus.NO_CONTENT
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charge_id = data["id"]
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if data["status"] != "paid":
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return "", HTTPStatus.NO_CONTENT
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x = hmac.new(self.auth_invoice["Authorization"], digestmod="sha256")
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x.update(charge_id)
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if x.hexdigest() != data["hashed_order"]:
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print("invalid webhook, not from opennode")
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return "", HTTPStatus.NO_CONTENT
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self.queue.put_nowait(charge_id)
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return "", HTTPStatus.NO_CONTENT
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