228 lines
No EOL
7 KiB
Python
228 lines
No EOL
7 KiB
Python
import json
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from typing import Any, List, Optional
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from lnbits.helpers import urlsafe_short_hash
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from . import db
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from .models import NostrEvent, NostrFilter, NostrRelay
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########################## RELAYS ####################
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async def create_relay(user_id: str, r: NostrRelay) -> NostrRelay:
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await db.execute(
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"""
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INSERT INTO nostrrelay.relays (user_id, id, name, description, pubkey, contact)
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VALUES (?, ?, ?, ?, ?, ?)
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""",
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(user_id, r.id, r.name, r.description, r.pubkey, r.contact,),
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)
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relay = await get_relay(user_id, r.id)
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assert relay, "Created relay cannot be retrieved"
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return relay
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async def update_relay(user_id: str, r: NostrRelay) -> NostrRelay:
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await db.execute(
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"""
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UPDATE nostrrelay.relays
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SET (name, description, pubkey, contact, active) = (?, ?, ?, ?, ?)
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WHERE user_id = ? AND id = ?
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""",
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(r.name, r.description, r.pubkey, r.contact, r.active, user_id, r.id),
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)
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return r
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async def get_relay(user_id: str, relay_id: str) -> Optional[NostrRelay]:
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row = await db.fetchone("""SELECT * FROM nostrrelay.relays WHERE user_id = ? AND id = ?""", (user_id, relay_id,))
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return NostrRelay.from_row(row) if row else None
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async def get_relays(user_id: str) -> List[NostrRelay]:
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rows = await db.fetchall("""SELECT * FROM nostrrelay.relays WHERE user_id = ? ORDER BY id ASC""", (user_id,))
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return [NostrRelay.from_row(row) for row in rows]
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async def get_all_active_relays_ids() -> List[str]:
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rows = await db.fetchall("SELECT id FROM nostrrelay.relays WHERE active = true",)
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return [r["id"] for r in rows]
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async def get_public_relay(relay_id: str) -> Optional[dict]:
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row = await db.fetchone("""SELECT * FROM nostrrelay.relays WHERE id = ?""", (relay_id,))
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if not row:
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return None
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relay = NostrRelay.from_row(row)
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return {
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"id": relay.id,
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"name": relay.name,
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"description":relay.description,
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"pubkey":relay.pubkey,
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"contact":relay.contact,
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"supported_nips":relay.supported_nips,
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}
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async def delete_relay(user_id: str, relay_id: str):
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await db.execute("""DELETE FROM nostrrelay.relays WHERE user_id = ? AND id = ?""", (user_id, relay_id,))
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########################## EVENTS ####################
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async def create_event(relay_id: str, e: NostrEvent):
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await db.execute(
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"""
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INSERT INTO nostrrelay.events (
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relay_id,
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id,
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pubkey,
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created_at,
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kind,
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content,
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sig
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)
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VALUES (?, ?, ?, ?, ?, ?, ?)
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""",
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(relay_id, e.id, e.pubkey, e.created_at, e.kind, e.content, e.sig),
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)
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# todo: optimize with bulk insert
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for tag in e.tags:
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name, value, *rest = tag
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extra = json.dumps(rest) if rest else None
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await create_event_tags(relay_id, e.id, name, value, extra)
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async def get_events(relay_id: str, filter: NostrFilter, include_tags = True) -> List[NostrEvent]:
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values, query = build_select_events_query(relay_id, filter)
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rows = await db.fetchall(query, tuple(values))
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events = []
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for row in rows:
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event = NostrEvent.from_row(row)
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if include_tags:
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event.tags = await get_event_tags(relay_id, event.id)
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events.append(event)
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return events
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async def get_event(relay_id: str, id: str) -> Optional[NostrEvent]:
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row = await db.fetchone("SELECT * FROM nostrrelay.events WHERE relay_id = ? AND id = ?", (relay_id, id,))
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if not row:
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return None
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event = NostrEvent.from_row(row)
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event.tags = await get_event_tags(relay_id, id)
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return event
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async def mark_events_deleted(relay_id: str, filter: NostrFilter):
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if filter.is_empty():
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return None
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_, where, values = build_where_clause(relay_id, filter)
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await db.execute(f"""UPDATE nostrrelay.events SET deleted=true WHERE {" AND ".join(where)}""", tuple(values))
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async def delete_events(relay_id: str, filter: NostrFilter):
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if filter.is_empty():
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return None
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_, where, values = build_where_clause(relay_id, filter)
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query = f"""DELETE from nostrrelay.events WHERE {" AND ".join(where)}"""
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await db.execute(query, tuple(values))
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async def create_event_tags(
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relay_id: str, event_id: str, tag_name: str, tag_value: str, extra_values: Optional[str]
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):
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await db.execute(
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"""
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INSERT INTO nostrrelay.event_tags (
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relay_id,
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event_id,
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name,
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value,
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extra
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)
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VALUES (?, ?, ?, ?, ?)
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""",
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(relay_id, event_id, tag_name, tag_value, extra_values),
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)
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async def get_event_tags(
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relay_id: str, event_id: str
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) -> List[List[str]]:
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rows = await db.fetchall(
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"SELECT * FROM nostrrelay.event_tags WHERE relay_id = ? and event_id = ?",
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(relay_id, event_id),
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)
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tags: List[List[str]] = []
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for row in rows:
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tag = [row["name"], row["value"]]
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extra = row["extra"]
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if extra:
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tag += json.loads(extra)
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tags.append(tag)
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return tags
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def build_select_events_query(relay_id:str, filter:NostrFilter):
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inner_joins, where, values = build_where_clause(relay_id, filter)
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query = f"""
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SELECT id, pubkey, created_at, kind, content, sig
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FROM nostrrelay.events
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{" ".join(inner_joins)}
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WHERE { " AND ".join(where)}
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ORDER BY created_at DESC
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"""
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# todo: check & enforce range
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if filter.limit and filter.limit > 0:
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query += f" LIMIT {filter.limit}"
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return values, query
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def build_where_clause(relay_id:str, filter:NostrFilter):
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inner_joins = []
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where = ["deleted=false", "nostrrelay.events.relay_id = ?"]
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values: List[Any] = [relay_id]
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if len(filter.e):
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values += filter.e
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e_s = ",".join(["?"] * len(filter.e))
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inner_joins.append("INNER JOIN nostrrelay.event_tags e_tags ON nostrrelay.events.id = e_tags.event_id")
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where.append(f" (e_tags.value in ({e_s}) AND e_tags.name = 'e')")
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if len(filter.p):
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values += filter.p
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p_s = ",".join(["?"] * len(filter.p))
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inner_joins.append("INNER JOIN nostrrelay.event_tags p_tags ON nostrrelay.events.id = p_tags.event_id")
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where.append(f" p_tags.value in ({p_s}) AND p_tags.name = 'p'")
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if len(filter.ids) != 0:
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ids = ",".join(["?"] * len(filter.ids))
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where.append(f"id IN ({ids})")
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values += filter.ids
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if len(filter.authors) != 0:
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authors = ",".join(["?"] * len(filter.authors))
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where.append(f"pubkey IN ({authors})")
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values += filter.authors
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if len(filter.kinds) != 0:
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kinds = ",".join(["?"] * len(filter.kinds))
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where.append(f"kind IN ({kinds})")
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values += filter.kinds
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if filter.since:
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where.append("reated_at >= ?")
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values += [filter.since]
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if filter.until:
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where.append("created_at <= ?")
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values += [filter.until]
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return inner_joins, where, values |