Padreug
b428b0dca8
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lint.yml / chore: satisfy upstream lint (black, mypy, prettier, ruff) (push) Failing after 0s
- black/prettier reformatting across new aio code - type annotations on db.fetchone/fetchall callsites in crud.py - explicit dict[str, list[str]] for tag_lists in nostr_sync.py - type:ignore[attr-defined] on Account.prvkey access — the field is added by the aio-fork lnbits.core.models.Account; upstream lnbits does not yet have it, so consumers without the fork must add a prvkey column to accounts before the Nostr publisher can sign. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
118 lines
3.4 KiB
Python
118 lines
3.4 KiB
Python
"""
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NIP-52 calendar event publishing for the events extension.
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Builds kind 31922 (date-based) calendar events from the Event model,
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signs them with the event creator's Account keypair, and publishes
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via the NostrClient to nostrclient relays.
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Reference: https://github.com/nostr-protocol/nips/blob/master/52.md
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"""
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import time
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import coincurve
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from loguru import logger
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from .models import Event
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from .nostr.event import NostrEvent
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def build_nip52_event(event: Event, pubkey: str) -> NostrEvent:
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"""
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Convert an Event model to a NIP-52 kind 31922 (date-based) calendar event.
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Tags:
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d - event.id (addressable identifier)
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title - event.name
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start - event.event_start_date (ISO date string)
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end - event.event_end_date (optional)
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image - event.banner (optional)
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Content: event.info (description)
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"""
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tags = [
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["d", event.id],
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["title", event.name],
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["start", event.event_start_date],
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]
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if event.event_end_date:
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tags.append(["end", event.event_end_date])
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if event.banner:
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tags.append(["image", event.banner])
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if event.location:
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tags.append(["location", event.location])
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for cat in event.categories or []:
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tags.append(["t", cat])
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nostr_event = NostrEvent(
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pubkey=pubkey,
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created_at=int(time.time()),
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kind=31922,
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tags=tags,
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content=event.info or "",
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)
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nostr_event.id = nostr_event.event_id
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return nostr_event
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def build_nip52_delete_event(event: Event, pubkey: str) -> NostrEvent:
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"""
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Build a kind 5 delete event for a published NIP-52 calendar event.
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Uses an 'a' tag to reference the parameterized replaceable event
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(kind 31922) per NIP-09.
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"""
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nostr_event = NostrEvent(
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pubkey=pubkey,
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created_at=int(time.time()),
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kind=5,
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tags=[
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["a", f"31922:{pubkey}:{event.id}"],
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],
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content="Event canceled",
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)
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nostr_event.id = nostr_event.event_id
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return nostr_event
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def sign_nostr_event(nostr_event: NostrEvent, private_key_hex: str) -> None:
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"""Sign a NostrEvent in-place using Schnorr signature."""
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privkey = coincurve.PrivateKey(bytes.fromhex(private_key_hex))
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sig = privkey.sign_schnorr(bytes.fromhex(nostr_event.id))
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nostr_event.sig = sig.hex()
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async def publish_event_to_nostr(
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nostr_client,
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event: Event,
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account_pubkey: str,
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account_prvkey: str,
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delete: bool = False,
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) -> NostrEvent | None:
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"""
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Build, sign, and publish a NIP-52 calendar event (or delete event).
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Returns the published NostrEvent for metadata storage, or None on failure.
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"""
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if not nostr_client:
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logger.debug("[EVENTS] No NostrClient available, skipping publish")
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return None
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try:
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if delete:
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nostr_event = build_nip52_delete_event(event, account_pubkey)
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else:
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nostr_event = build_nip52_event(event, account_pubkey)
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sign_nostr_event(nostr_event, account_prvkey)
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await nostr_client.publish_nostr_event(nostr_event)
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logger.info(
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f"[EVENTS] Published NIP-52 {'delete' if delete else 'calendar'} "
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f"event: {nostr_event.id[:16]}... (kind {nostr_event.kind})"
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)
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return nostr_event
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except Exception as e:
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logger.warning(f"[EVENTS] Failed to publish to Nostr: {e}")
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return None
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