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- import hashlib
- import hmac
- import secrets
- def generate_gateway_session_id():
- return 'GWS_' + secrets.token_urlsafe(32)
- def hash_gateway_session_id(session_id):
- value = str(session_id or '').strip()
- if not value:
- raise ValueError('gateway_session_id is required')
- return hashlib.sha256(value.encode('utf-8')).hexdigest()
- def constant_time_equals(left, right):
- return hmac.compare_digest(str(left or ''), str(right or ''))
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