mirror of
https://github.com/lnbits/lnbits-legend.git
synced 2025-02-25 07:07:48 +01:00
78 lines
2.4 KiB
Python
78 lines
2.4 KiB
Python
import hashlib
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from datetime import datetime, timedelta
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import httpx
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from fastapi.params import Query
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from lnurl import ( # type: ignore
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LnurlErrorResponse,
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LnurlPayActionResponse,
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LnurlPayResponse,
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)
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from starlette.requests import Request
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from . import lnaddress_ext
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from .crud import get_address, get_address_by_username, get_domain
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async def lnurl_response(username: str, domain: str, request: Request):
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address = await get_address_by_username(username, domain)
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if not address:
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return {"status": "ERROR", "reason": "Address not found."}
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## CHECK IF USER IS STILL VALID/PAYING
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now = datetime.now().timestamp()
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start = datetime.fromtimestamp(address.time)
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expiration = (start + timedelta(days = address.duration)).timestamp()
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if now > expiration:
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return LnurlErrorResponse(reason="Address has expired.").dict()
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resp = LnurlPayResponse(
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callback=request.url_for("lnaddress.lnurl_callback", address_id=address.id),
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min_sendable=1000,
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max_sendable=1000000000,
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metadata=await address.lnurlpay_metadata(),
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)
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return resp.dict()
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@lnaddress_ext.get("/lnurl/cb/{address_id}", name="lnaddress.lnurl_callback")
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async def lnurl_callback(address_id, amount: int = Query(...)):
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address = await get_address(address_id)
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if not address:
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return LnurlErrorResponse(
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reason=f"Address not found"
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).dict()
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amount_received = amount
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domain = await get_domain(address.domain)
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base_url = address.wallet_endpoint[:-1] if address.wallet_endpoint.endswith('/') else address.wallet_endpoint
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async with httpx.AsyncClient() as client:
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try:
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call = await client.post(
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base_url + "/api/v1/payments",
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headers={"X-Api-Key": address.wallet_key, "Content-Type": "application/json"},
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json={
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"out": False,
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"amount": int(amount_received / 1000),
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"description_hash": hashlib.sha256((await address.lnurlpay_metadata()).encode("utf-8")).hexdigest(),
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"extra": {"tag": f"Payment to {address.username}@{domain.domain}"},
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},
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timeout=40,
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)
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r = call.json()
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except AssertionError as e:
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return LnurlErrorResponse(reason="ERROR")
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resp = LnurlPayActionResponse(
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pr=r["payment_request"],
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routes=[],
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)
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return resp.dict()
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