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LibreTranslate/app/api_keys.py

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import sqlite3
import uuid
from expiringdict import ExpiringDict
DEFAULT_DB_PATH = "api_keys.db"
class Database:
def __init__(self, db_path = DEFAULT_DB_PATH, max_cache_len=1000, max_cache_age=30):
self.db_path = db_path
self.cache = ExpiringDict(max_len=max_cache_len, max_age_seconds=max_cache_age)
# Make sure to do data synchronization on writes!
self.c = sqlite3.connect(db_path, check_same_thread=False)
self.c.execute('''CREATE TABLE IF NOT EXISTS api_keys (
"api_key" TEXT NOT NULL,
"req_limit" INTEGER NOT NULL,
PRIMARY KEY("api_key")
);''')
def lookup(self, api_key):
req_limit = self.cache.get(api_key)
if req_limit is None:
# DB Lookup
stmt = self.c.execute('SELECT req_limit FROM api_keys WHERE api_key = ?', (api_key, ))
row = stmt.fetchone()
if row is not None:
self.cache[api_key] = row[0]
req_limit = row[0]
else:
self.cache[api_key] = False
req_limit = False
if isinstance(req_limit, bool):
req_limit = None
return req_limit
def add(self, req_limit, api_key = "auto"):
if api_key == "auto":
api_key = str(uuid.uuid4())
self.remove(api_key)
self.c.execute("INSERT INTO api_keys (api_key, req_limit) VALUES (?, ?)", (api_key, req_limit))
self.c.commit()
return (api_key, req_limit)
def remove(self, api_key):
self.c.execute('DELETE FROM api_keys WHERE api_key = ?', (api_key, ))
self.c.commit()
return api_key
def all(self):
row = self.c.execute("SELECT api_key, req_limit FROM api_keys")
return row.fetchall()