lnbits-legend/lnbits/wallets/lntxbot.py
calle e5d8c500d2
Wallets/unhashed_description (#870)
* new argument: unhashed_description

* accept in api

* set unhashed_description for memo case

* bolt11.py: dont be like CLN, accept the hash

* send hash to lnd in b64

* fix cln

* skip descr_hash for cln

* skip

* format
2022-08-13 14:29:04 +02:00

157 lines
5.1 KiB
Python

import asyncio
import hashlib
import json
from os import getenv
from typing import AsyncGenerator, Dict, Optional
import httpx
from loguru import logger
from .base import (
InvoiceResponse,
PaymentResponse,
PaymentStatus,
StatusResponse,
Wallet,
)
class LntxbotWallet(Wallet):
"""https://github.com/fiatjaf/lntxbot/blob/master/api.go"""
def __init__(self):
endpoint = getenv("LNTXBOT_API_ENDPOINT")
self.endpoint = endpoint[:-1] if endpoint.endswith("/") else endpoint
key = (
getenv("LNTXBOT_KEY")
or getenv("LNTXBOT_ADMIN_KEY")
or getenv("LNTXBOT_INVOICE_KEY")
)
self.auth = {"Authorization": f"Basic {key}"}
async def status(self) -> StatusResponse:
async with httpx.AsyncClient() as client:
r = await client.get(
f"{self.endpoint}/balance", headers=self.auth, timeout=40
)
try:
data = r.json()
except:
return StatusResponse(
f"Failed to connect to {self.endpoint}, got: '{r.text[:200]}...'", 0
)
if data.get("error"):
return StatusResponse(data["message"], 0)
return StatusResponse(None, data["BTC"]["AvailableBalance"] * 1000)
async def create_invoice(
self,
amount: int,
memo: Optional[str] = None,
description_hash: Optional[bytes] = None,
unhashed_description: Optional[bytes] = None,
**kwargs,
) -> InvoiceResponse:
data: Dict = {"amt": str(amount)}
if description_hash:
data["description_hash"] = description_hash.hex()
elif unhashed_description:
data["description_hash"] = hashlib.sha256(unhashed_description).hexdigest()
else:
data["memo"] = memo or ""
async with httpx.AsyncClient() as client:
r = await client.post(
f"{self.endpoint}/addinvoice", headers=self.auth, json=data, timeout=40
)
if r.is_error:
try:
data = r.json()
error_message = data["message"]
except:
error_message = r.text
pass
return InvoiceResponse(False, None, None, error_message)
data = r.json()
return InvoiceResponse(True, data["payment_hash"], data["pay_req"], None)
async def pay_invoice(self, bolt11: str, fee_limit_msat: int) -> PaymentResponse:
async with httpx.AsyncClient() as client:
r = await client.post(
f"{self.endpoint}/payinvoice",
headers=self.auth,
json={"invoice": bolt11},
timeout=None,
)
if "error" in r.json():
try:
data = r.json()
error_message = data["message"]
except:
error_message = r.text
pass
return PaymentResponse(False, None, 0, None, error_message)
data = r.json()
checking_id = data["payment_hash"]
fee_msat = -data["fee_msat"]
preimage = data["payment_preimage"]
return PaymentResponse(True, checking_id, fee_msat, preimage, None)
async def get_invoice_status(self, checking_id: str) -> PaymentStatus:
async with httpx.AsyncClient() as client:
r = await client.post(
f"{self.endpoint}/invoicestatus/{checking_id}?wait=false",
headers=self.auth,
)
data = r.json()
if r.is_error or "error" in data:
return PaymentStatus(None)
if "preimage" not in data:
return PaymentStatus(False)
return PaymentStatus(True)
async def get_payment_status(self, checking_id: str) -> PaymentStatus:
async with httpx.AsyncClient() as client:
r = await client.post(
url=f"{self.endpoint}/paymentstatus/{checking_id}", headers=self.auth
)
data = r.json()
if r.is_error or "error" in data:
return PaymentStatus(None)
statuses = {"complete": True, "failed": False, "pending": None, "unknown": None}
return PaymentStatus(statuses[data.get("status", "unknown")])
async def paid_invoices_stream(self) -> AsyncGenerator[str, None]:
url = f"{self.endpoint}/payments/stream"
while True:
try:
async with httpx.AsyncClient(timeout=None, headers=self.auth) as client:
async with client.stream("GET", url) as r:
async for line in r.aiter_lines():
if line.startswith("data:"):
data = json.loads(line[5:])
if "payment_hash" in data and data.get("msatoshi") > 0:
yield data["payment_hash"]
except (OSError, httpx.ReadError, httpx.ReadTimeout, httpx.ConnectError):
pass
logger.error(
"lost connection to lntxbot /payments/stream, retrying in 5 seconds"
)
await asyncio.sleep(5)