mirror of
https://github.com/lnbits/lnbits-legend.git
synced 2024-11-20 10:39:59 +01:00
109 lines
3.5 KiB
Python
109 lines
3.5 KiB
Python
import hashlib
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import math
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from http import HTTPStatus
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from os import name
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from fastapi.exceptions import HTTPException
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from fastapi.params import Query
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from lnurl import LnurlErrorResponse, LnurlPayActionResponse, LnurlPayResponse
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from starlette.requests import Request # type: ignore
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from lnbits.core.services import create_invoice
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from . import livestream_ext
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from .crud import get_livestream, get_livestream_by_track, get_track
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@livestream_ext.get("/lnurl/{ls_id}", name="livestream.lnurl_livestream")
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async def lnurl_livestream(ls_id, request: Request):
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ls = await get_livestream(ls_id)
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if not ls:
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raise HTTPException(
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status_code=HTTPStatus.NOT_FOUND, detail="Livestream not found."
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)
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track = await get_track(ls.current_track)
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if not track:
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raise HTTPException(
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status_code=HTTPStatus.NOT_FOUND, detail="This livestream is offline."
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)
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resp = LnurlPayResponse(
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callback=request.url_for("livestream.lnurl_callback", track_id=track.id),
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min_sendable=track.min_sendable,
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max_sendable=track.max_sendable,
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metadata=await track.lnurlpay_metadata(),
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)
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params = resp.dict()
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params["commentAllowed"] = 300
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return params
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@livestream_ext.get("/lnurl/t/{track_id}", name="livestream.lnurl_track")
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async def lnurl_track(track_id, request: Request):
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track = await get_track(track_id)
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if not track:
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raise HTTPException(status_code=HTTPStatus.NOT_FOUND, detail="Track not found.")
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resp = LnurlPayResponse(
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callback=request.url_for("livestream.lnurl_callback", track_id=track.id),
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min_sendable=track.min_sendable,
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max_sendable=track.max_sendable,
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metadata=await track.lnurlpay_metadata(),
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)
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params = resp.dict()
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params["commentAllowed"] = 300
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return params
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@livestream_ext.get("/lnurl/cb/{track_id}", name="livestream.lnurl_callback")
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async def lnurl_callback(
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track_id, request: Request, amount: int = Query(...), comment: str = Query("")
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):
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track = await get_track(track_id)
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if not track:
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raise HTTPException(status_code=HTTPStatus.NOT_FOUND, detail="Track not found.")
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amount_received = int(amount or 0)
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if amount_received < track.min_sendable:
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return LnurlErrorResponse(
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reason=f"Amount {round(amount_received / 1000)} is smaller than minimum {math.floor(track.min_sendable)}."
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).dict()
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elif track.max_sendable < amount_received:
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return LnurlErrorResponse(
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reason=f"Amount {round(amount_received / 1000)} is greater than maximum {math.floor(track.max_sendable)}."
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).dict()
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if len(comment or "") > 300:
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return LnurlErrorResponse(
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reason=f"Got a comment with {len(comment)} characters, but can only accept 300"
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).dict()
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ls = await get_livestream_by_track(track_id)
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payment_hash, payment_request = await create_invoice(
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wallet_id=ls.wallet,
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amount=int(amount_received / 1000),
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memo=await track.fullname(),
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description_hash=hashlib.sha256(
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(await track.lnurlpay_metadata()).encode("utf-8")
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).digest(),
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extra={"tag": "livestream", "track": track.id, "comment": comment},
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)
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if amount_received < track.price_msat:
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success_action = None
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else:
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success_action = track.success_action(payment_hash, request=request)
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resp = LnurlPayActionResponse(
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pr=payment_request, success_action=success_action, routes=[]
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)
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return resp.dict()
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