44 lines
1.5 KiB
Python
44 lines
1.5 KiB
Python
from __future__ import annotations
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import re
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import threading
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import time
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from collections import defaultdict, deque
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class RateLimiter:
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def __init__(self, max_requests: int = 30, window_seconds: int = 60) -> None:
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self._max_requests = max_requests
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self._window_seconds = window_seconds
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self._lock = threading.Lock()
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self._records: dict[str, deque[float]] = defaultdict(deque)
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def allow(self, key: str) -> bool:
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now = time.monotonic()
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with self._lock:
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entries = self._records[key]
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while entries and now - entries[0] > self._window_seconds:
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entries.popleft()
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if len(entries) >= self._max_requests:
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return False
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entries.append(now)
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return True
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def validate_password_rules(password: str) -> None:
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if len(password) < 12:
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raise ValueError("password must be at least 12 characters long")
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if not re.search(r"[A-Z]", password):
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raise ValueError("password must include at least one uppercase letter")
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if not re.search(r"[a-z]", password):
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raise ValueError("password must include at least one lowercase letter")
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if not re.search(r"\d", password):
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raise ValueError("password must include at least one digit")
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if not re.search(r"[^A-Za-z0-9]", password):
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raise ValueError("password must include at least one symbol")
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def wipe_buffer(buffer: bytearray) -> None:
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for index in range(len(buffer)):
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buffer[index] = 0
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