fix(wildcards): remove old secret references

[roggervalf]

fixes #63
we can remove old wildcard references from secret object by restoring original object to prevent memory leaks, I used same example as in the issue to see that there is not showing an array incrementing its size in each call

[roggervalf]

pls @mcollina when you get some time

[mcollina]

Thanks for opening a PR! Can you please add a unit test?

[roggervalf]

this is only for test case to compare the size of it

[roggervalf]

for node 6 we can not use spread operator directly so I have to use a for

[roggervalf]

@mcollina test was added, pls when you get some time

[mcollina]

lgtm

[msala-fp]

@mcollina These changes are breaking. If you will use more then once the same redact instance, it fails to restore the second object. It is breaking "pino" logger at our side. I can't be sure the source of the problem is the same, but if yes, so it could have bigger impact for lot of users.
Just try this test:

test('restores multi nested wildcard values, twice', ({ end, is }) => {
  const o = {
    a: {
      b1: {
        c1: {
          d1: { e: '123' },
          d2: { e: '456' }
        },
        c2: {
          d1: { e: '789' },
          d2: { e: '012' }
        }
      },
      b2: {
        c1: {
          d1: { e: '345' },
          d2: { e: '678' }
        },
        c2: {
          d1: { e: '901' },
          d2: { e: '234' }
        }
      }
    }
  }
  const o2 = {
    a: {
      b1: {
        c1: {
          d1: { e: '123' },
          d2: { e: '456' }
        },
        c2: {
          d1: { e: '789' },
          d2: { e: '012' }
        }
      },
      b2: {
        c1: {
          d1: { e: '345' },
          d2: { e: '678' }
        },
        c2: {
          d1: { e: '901' },
          d2: { e: '234' }
        }
      }
    }
  }

  const censor = 'censor'
  const paths = ['a.*.*.*.e']
  const redact = fastRedact({ paths, censor, serialize: false })

  redact(o)
  is(o.a.b1.c1.d1.e, censor)
  is(o.a.b1.c1.d2.e, censor)
  is(o.a.b1.c2.d1.e, censor)
  is(o.a.b1.c2.d2.e, censor)
  is(o.a.b2.c1.d1.e, censor)
  is(o.a.b2.c1.d2.e, censor)
  is(o.a.b2.c2.d1.e, censor)
  is(o.a.b2.c2.d2.e, censor)
  redact.restore(o)
  is(o.a.b1.c1.d1.e, '123')
  is(o.a.b1.c1.d2.e, '456')
  is(o.a.b1.c2.d1.e, '789')
  is(o.a.b1.c2.d2.e, '012')
  is(o.a.b2.c1.d1.e, '345')
  is(o.a.b2.c1.d2.e, '678')
  is(o.a.b2.c2.d1.e, '901')
  is(o.a.b2.c2.d2.e, '234')

  redact(o2)
  is(o2.a.b1.c1.d1.e, censor)
  is(o2.a.b1.c1.d2.e, censor)
  is(o2.a.b1.c2.d1.e, censor)
  is(o2.a.b1.c2.d2.e, censor)
  is(o2.a.b2.c1.d1.e, censor)
  is(o2.a.b2.c1.d2.e, censor)
  is(o2.a.b2.c2.d1.e, censor)
  is(o2.a.b2.c2.d2.e, censor)
  redact.restore(o2)
  is(o2.a.b1.c1.d1.e, '123')
  is(o2.a.b1.c1.d2.e, '456')
  is(o2.a.b1.c2.d1.e, '789')
  is(o2.a.b1.c2.d2.e, '012')
  is(o2.a.b2.c1.d1.e, '345')
  is(o2.a.b2.c1.d2.e, '678')
  is(o2.a.b2.c2.d1.e, '901')
  is(o2.a.b2.c2.d2.e, '234')

  end()
})

[tadhglewis]

We also ran into this issue which can cause pretty major application and data issues depending on your usage of pino/fast-redact 😬

bump @mcollina

[72636c]

Here's a minimal-ish repro for the pino logging use case:

import { pino } from 'pino';

const logger = pino({ redact: { censor: '???', paths: ['props.*'] } });

const props = { name: 'PII' };

logger.child({ props });
logger.child({ props });

console.log({ props });
// { props: { name: '???' } }

[MSala]

I have prepared a PR with potential fixes, retaining the benefits of changes from this PR.
See: #69
CC: @mcollina @roggervalf