55 lines
1.8 KiB
Python
55 lines
1.8 KiB
Python
"""SQLite cache for Memory Gateway user credentials."""
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from __future__ import annotations
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import sqlite3
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import time
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from pathlib import Path
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class MemoryGatewayUserStore:
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"""Persist `user_id -> user_key` mappings returned by Memory Gateway."""
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def __init__(self, db_path: str | Path) -> None:
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self.db_path = Path(db_path)
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self.db_path.parent.mkdir(parents=True, exist_ok=True)
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self._init_schema()
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def get_user_key(self, user_id: str) -> str | None:
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with self._connect() as conn:
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row = conn.execute(
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"SELECT user_key FROM memory_gateway_users WHERE user_id = ?",
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(user_id,),
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).fetchone()
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return str(row[0]) if row else None
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def save_user_key(self, user_id: str, user_key: str) -> None:
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now = time.time()
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with self._connect() as conn:
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conn.execute(
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"""
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INSERT INTO memory_gateway_users (user_id, user_key, created_at, updated_at)
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VALUES (?, ?, ?, ?)
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ON CONFLICT(user_id) DO UPDATE SET
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user_key = excluded.user_key,
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updated_at = excluded.updated_at
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""",
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(user_id, user_key, now, now),
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)
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def _init_schema(self) -> None:
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with self._connect() as conn:
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conn.execute(
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"""
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CREATE TABLE IF NOT EXISTS memory_gateway_users (
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user_id TEXT PRIMARY KEY,
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user_key TEXT NOT NULL,
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created_at REAL NOT NULL,
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updated_at REAL NOT NULL
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)
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"""
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)
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def _connect(self) -> sqlite3.Connection:
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return sqlite3.connect(str(self.db_path))
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