mirror of
https://github.com/NovaOSS/nova-api.git
synced 2024-11-25 21:23:56 +01:00
87 lines
2.1 KiB
Python
87 lines
2.1 KiB
Python
import json
|
|
import os
|
|
import random
|
|
import sqlite3
|
|
|
|
with open('./config.json', 'r') as file:
|
|
config = json.load(file)
|
|
|
|
class Keys:
|
|
# --- START OF CONFIG ---
|
|
|
|
DB_PATH = os.getenv('DB_PATH') or config.get('DB_PATH')
|
|
|
|
# --- END OF CONFIG ---
|
|
|
|
locked_keys = set()
|
|
cache = set()
|
|
|
|
def __init__(self, key: str):
|
|
self.key = key
|
|
if not Keys.cache:
|
|
self._load_keys()
|
|
|
|
def _connect(self):
|
|
conn = sqlite3.connect(self.DB_PATH)
|
|
return conn
|
|
|
|
def _load_keys(self) -> None:
|
|
conn = self._connect()
|
|
cursor = conn.cursor()
|
|
cursor.execute("SELECT key_value FROM keys")
|
|
rows = cursor.fetchall()
|
|
for row in rows:
|
|
key_value = row[0]
|
|
self.cache.add(key_value)
|
|
conn.commit()
|
|
|
|
def lock(self) -> None:
|
|
self.locked_keys.add(self.key)
|
|
|
|
def unlock(self) -> None:
|
|
self.locked_keys.remove(self.key)
|
|
|
|
def is_locked(self) -> bool:
|
|
return self.key in self.locked_keys
|
|
|
|
def get() -> str:
|
|
key_candidates = list(Keys.cache)
|
|
random.shuffle(key_candidates)
|
|
|
|
for key_candidate in key_candidates:
|
|
key = Keys(key_candidate)
|
|
|
|
if not key.is_locked():
|
|
key.lock()
|
|
return key.key
|
|
|
|
print("[WARN] No unlocked keys found in get keys request!")
|
|
|
|
def delete(self) -> None:
|
|
conn = self._connect()
|
|
cursor = conn.cursor()
|
|
|
|
cursor.execute("DELETE FROM keys WHERE key_value=?", (self.key,))
|
|
conn.commit()
|
|
# Update cache
|
|
try:
|
|
Keys.cache.remove(self.key)
|
|
except KeyError:
|
|
print("[WARN] Tried to remove a key from cache which was not present: " + self.key)
|
|
|
|
def save(self) -> None:
|
|
conn = self._connect()
|
|
cursor = conn.cursor()
|
|
cursor.execute("INSERT INTO keys (key_value) VALUES (?)", (self.key,))
|
|
conn.commit()
|
|
# Update cache
|
|
Keys.cache.add(self.key)
|
|
|
|
|
|
# Usage example:
|
|
# os.environ['DB_PATH'] = "keys.db"
|
|
# key_instance = Keys("example_ky")
|
|
# key_instance.save()
|
|
# key_value = Keys.get()
|
|
|