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fix: enforce check minimum #72

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Merged
talvasconcelos merged 1 commit into from
Mar 31, 2026
Merged

fix: enforce check minimum #72

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11 changes: 11 additions & 0 deletions views_lnurl.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@

import httpx
import shortuuid
from bolt11 import decode as decode_bolt11
from fastapi import APIRouter, Request
from fastapi.responses import JSONResponse
from lnbits.core.crud import update_payment
Expand Down Expand Up @@ -96,6 +97,16 @@ async def api_lnurl_callback(
if not link.enabled:
return LnurlErrorResponse(reason="Withdraw link is disabled.")

bolt11 = decode_bolt11(pr)
if not bolt11.amount_msat:
return LnurlErrorResponse(reason="0 amount invoices are not supported.")

if (
link.min_withdrawable * 1000 > bolt11.amount_msat
or bolt11.amount_msat > link.max_withdrawable * 1000
):
return LnurlErrorResponse(reason="Amount not within limits.")

if link.is_spent:
return LnurlErrorResponse(reason="withdraw is spent.")

Expand Down
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