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中级

Token吊销黑名单实现

未完成
中级参考 代码结构已给出,请填写 ____ 处
def solve():
    from pyodide.http import open_url
    from io import StringIO
    tokens_csv = open_url(____).read()
    import pandas as pd
    from io import StringIO
    tokens = pd.read_csv(StringIO(____))
    revoked_set = set(tokens[tokens['____']==____]['____'].tolist())
    def revoke_token(____):
        revoked_set.add(____)
        return True
    def is_token_valid(____):
        if jti in revoked_set: return False, '____'
        if expires_at < now: return False, '____'
        return True, '____'
    print(____)
    for _, row in tokens.iterrows():
        ok, reason = is_token_valid(____)
        status = '____' if ok else f'____'
        print(____)

示例

输入
solve()
期望输出
已吊销Token数: 2
user=1 type=access: valid
user=1 type=refresh: valid
user=2 type=access: valid
user=2 type=refresh: valid
user=3 type=access: invalid(revoked)
user=5 type=access: invalid(revoked)
user=6 type=access: valid
user=7 type=access: valid
user=8 type=access: invalid(expired)
user=4 type=access: invalid(expired)
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