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LDAP: determine shares of offline users only when needed#27698

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blizzz merged 1 commit intomasterfrom
fix/25761/userexistsonldap-loop
Jun 28, 2021
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LDAP: determine shares of offline users only when needed#27698
blizzz merged 1 commit intomasterfrom
fix/25761/userexistsonldap-loop

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@blizzz blizzz commented Jun 28, 2021 •
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The story behind is this:

  1. On a migration call that loops over all users
  2. Also all known LDAP users get into consideration
  3. including those that are not found on LDAP anymore (OfflineUser)
  4. and userExists is run against each user
  5. which also causes an existency check against the LDAP server
  6. for which the DN is required
  7. the getter of the OfflinerUser triggered fetching all details
  8. including checking whether they are a sharee
  9. which depending on the share provider logic might invoke a user existence check

But the only place where we need the information is the ldap:show-remnants command.

fixes a segfault on a migration step of accessibility app on upgrade #25761 (wrong issue)

@blizzz
LDAP: determine shares of offline users only when needed
bbcd8c9 
- determine shares may via Sharing code result in user exists checks
- this may result in an infinite loop when user exists was called before
- the info is really only required at one occ command

Signed-off-by: Arthur Schiwon <blizzz@arthur-schiwon.de>
@blizzz blizzz added this to the Nextcloud 23 milestone Jun 28, 2021
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blizzz commented Jun 28, 2021

/backport to stable22

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blizzz commented Jun 28, 2021

/backport to stable21

artonge
artonge approved these changes Jun 28, 2021
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LGTM :)

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Pytal commented Jun 28, 2021

Drone 🤷‍♂️

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blizzz commented Jun 28, 2021

Drone man_shrugging

unrelated

@blizzz blizzz merged commit 73c5738 into master Jun 28, 2021
@blizzz blizzz deleted the fix/25761/userexistsonldap-loop branch June 28, 2021 17:13
This was referenced Jun 28, 2021
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@artonge artonge artonge approved these changes

@Pytal Pytal Pytal approved these changes

@nickvergessen nickvergessen Awaiting requested review from nickvergessen

@ChristophWurst ChristophWurst Awaiting requested review from ChristophWurst

@skjnldsv skjnldsv Awaiting requested review from skjnldsv

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