mirror of
https://github.com/lnbits/lnbits-legend.git
synced 2024-11-20 10:39:59 +01:00
149 lines
4.8 KiB
Python
149 lines
4.8 KiB
Python
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 AsyncGenerator, Optional
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import httpx
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from fastapi.exceptions import HTTPException
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from loguru import logger
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from lnbits.helpers import url_for
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from .base import (
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InvoiceResponse,
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PaymentResponse,
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PaymentStatus,
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StatusResponse,
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Unsupported,
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Wallet,
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)
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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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key = (
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getenv("OPENNODE_KEY")
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or getenv("OPENNODE_ADMIN_KEY")
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or getenv("OPENNODE_INVOICE_KEY")
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)
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self.auth = {"Authorization": key}
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async def status(self) -> StatusResponse:
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try:
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async with httpx.AsyncClient() as client:
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r = await client.get(
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f"{self.endpoint}/v1/account/balance", headers=self.auth, timeout=40
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)
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except (httpx.ConnectError, httpx.RequestError):
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return StatusResponse(f"Unable to connect to '{self.endpoint}'", 0)
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data = r.json()["data"]
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if r.is_error:
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return StatusResponse(data["message"], 0)
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return StatusResponse(None, data["balance"]["BTC"] / 100_000_000_000)
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async def create_invoice(
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self,
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amount: int,
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memo: Optional[str] = None,
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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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async with httpx.AsyncClient() as client:
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r = await client.post(
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f"{self.endpoint}/v1/charges",
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headers=self.auth,
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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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timeout=40,
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)
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if r.is_error:
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error_message = r.json()["message"]
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return InvoiceResponse(False, None, None, error_message)
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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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return InvoiceResponse(True, checking_id, payment_request, None)
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async def pay_invoice(self, bolt11: str, fee_limit_msat: int) -> PaymentResponse:
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async with httpx.AsyncClient() as client:
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r = await client.post(
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f"{self.endpoint}/v2/withdrawals",
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headers=self.auth,
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json={"type": "ln", "address": bolt11},
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timeout=180,
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)
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if r.is_error:
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error_message = r.json()["message"]
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return PaymentResponse(False, None, 0, None, error_message)
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data = r.json()["data"]
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checking_id = data["id"]
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fee_msat = data["fee"] * 1000
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return PaymentResponse(True, checking_id, fee_msat, None, None)
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async def get_invoice_status(self, checking_id: str) -> PaymentStatus:
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async with httpx.AsyncClient() as client:
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r = await client.get(
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f"{self.endpoint}/v1/charge/{checking_id}", headers=self.auth
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)
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if r.is_error:
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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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async def get_payment_status(self, checking_id: str) -> PaymentStatus:
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async with httpx.AsyncClient() as client:
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r = await client.get(
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f"{self.endpoint}/v1/withdrawal/{checking_id}", headers=self.auth
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)
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if r.is_error:
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return PaymentStatus(None)
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statuses = {
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"initial": None,
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"pending": None,
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"confirmed": True,
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"error": False,
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"failed": False,
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}
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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(0)
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while True:
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value = await self.queue.get()
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yield value
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async def webhook_listener(self):
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data = await request.form
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if "status" not in data or data["status"] != "paid":
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raise HTTPException(status_code=HTTPStatus.NO_CONTENT)
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charge_id = data["id"]
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x = hmac.new(self.auth["Authorization"].encode("ascii"), digestmod="sha256")
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x.update(charge_id.encode("ascii"))
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if x.hexdigest() != data["hashed_order"]:
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logger.error("invalid webhook, not from opennode")
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raise HTTPException(status_code=HTTPStatus.NO_CONTENT)
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await self.queue.put(charge_id)
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raise HTTPException(status_code=HTTPStatus.NO_CONTENT)
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