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Fix NPE in Logfile Audit Filter (#38120) #38274

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albertzaharovits
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The culprit in #38097 is an IndicesRequest that has no indices,
but instead of request.indices() returning null or String[0]
it returned String[] {null} . This tripped the audit filter.

I have addressed this in two ways:

  1. request.indices() returning String[] {null} is treated as null
    or String[0], i.e. no indices
  2. null values among the roles and indices lists, which are
    unexpected, will never again stumble the audit filter; null values
    are treated as special values that will not match any policy,
    i.e. their events will always be printed.

Closes #38097

The culprit in elastic#38097 is an `IndicesRequest` that has no indices,
but instead of `request.indices()` returning `null` or `String[0]`
it returned `String[] {null}` . This tripped the audit filter.

I have addressed this in two ways:
1. `request.indices()` returning `String[] {null}` is treated as `null`
    or `String[0]`, i.e. no indices
2. `null` values among the roles and indices lists, which are
    unexpected, will never again stumble the audit filter; `null` values
    are treated as special values that will not match any policy,
    i.e. their events will always be printed.

Closes elastic#38097
@albertzaharovits albertzaharovits self-assigned this Feb 3, 2019
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Pinging @elastic/es-security

@albertzaharovits albertzaharovits merged commit 83fed50 into elastic:6.5 Feb 3, 2019
@albertzaharovits albertzaharovits deleted the 6.5-backport-fix-bug-38097 branch February 3, 2019 11:24
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2 participants