cassandra - 替换 logback 中的多个值

Question

我正在尝试替换 logback 记录器中的多个值，该记录器记录了 Cassandra CQL 语句并使用了这篇文章中的示例:
Mask sensitive data in logs with logback

其中使用 %replace 函数的调用:

%replace(  %replace(%msg){'regex1', 'replacement1'}  ){'regex2', 'replacement2'}

就我而言，我想替换 3 个字段 - 姓名、姓氏和密码。使用的语句是:

%replace(%replace(%replace(%msg){"first_name='.*'", "first_name='xxxxx'"}){"last_name='.*'", "last_name='yyyyyy'"}){"password='.*'", "password='zzzzzz'"}%n

它似乎工作正常，但我注意到如果字段的顺序不同，有时会删除值。例如，

1)当语句按此顺序时就可以了:

执行:

UPDATE usertest.users SET password='secret_pw', last_name='Smith', first_name='John' where user_id = 1745;

记录:

UPDATE usertest.users SET password=zzzzzz, last_name=yyyyyy, first_name=xxxxx where user_id = 1745;

2) 在这种情况下，姓氏被删除

执行:

UPDATE usertest.users SET password='secret_pw', first_name='John', last_name='Smith' where user_id = 1745;

记录:

UPDATE usertest.users SET password=zzzzzz, first_name=xxxxx where user_id = 1745;

3)在这种情况下密码被删除

执行:

UPDATE usertest.users SET last_name='Smith', password='secret_pw', first_name='John' where user_id = 1745;

记录:

UPDATE usertest.users SET last_name=yyyyyy, first_name=xxxxx where user_id = 1745;

有人可以建议为什么它会发生以及如何修复它或者有其他方法可以解决吗？

Answer 1

这是一个问题，正则表达式模式比您预期的要多，因此替换会相互覆盖。

我重现了您看到的问题，然后将正则表达式更改为仅包含字母数字(\w 而不是 .)，因此模式如下所示:

%replace(  %replace(  %replace(%msg){"first_name='\w*'", "first_name='xxxxx'"}  ){"last_name='\w*'", "last_name='yyyyyy'"}  ){"password='\w*'", "password='zzzzzz'"}%n

以下是一些测试:

UPDATE usertest.users SET password='secret_pw', last_name='Smith', first_name='John' where user_id = 1745;
UPDATE usertest.users SET last_name='Smith', first_name='John', password='secret_pw' where user_id = 1745;
UPDATE usertest.users SET first_name='John', password='secret_pw', last_name='Smith' where user_id = 1745;
UPDATE usertest.users SET first_name='John', last_name='Smith', password='secret_pw' where user_id = 1745;

以及记录结果:

Received: QUERY UPDATE usertest.users SET password='zzzzzz', last_name='yyyyyy', first_name='xxxxx' where user_id = 1745;[pageSize = 100], v=4/v4
Received: QUERY UPDATE usertest.users SET last_name='yyyyyy', first_name='xxxxx', password='zzzzzz' where user_id = 1745;[pageSize = 100], v=4/v4
Received: QUERY UPDATE usertest.users SET first_name='xxxxx', password='zzzzzz', last_name='yyyyyy' where user_id = 1745;[pageSize = 100], v=4/v4
Received: QUERY UPDATE usertest.users SET first_name='xxxxx', last_name='yyyyyy', password='zzzzzz' where user_id = 1745;[pageSize = 100], v=4/v4