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limit ldap_dn columns to 4000 #31683

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come-nc merged 5 commits into from
Mar 30, 2022
Merged

limit ldap_dn columns to 4000 #31683

come-nc merged 5 commits into from
Mar 30, 2022

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@blizzz blizzz commented Mar 23, 2022

fixes #31681, satisfies #31679

@blizzz blizzz requested review from come-nc and nickvergessen March 23, 2022 15:17
@blizzz blizzz added this to the Nextcloud 24 milestone Mar 23, 2022
@blizzz blizzz force-pushed the fix/31681/oracle-str-col branch from aaf4e6a to 563d4b1 Compare March 23, 2022 15:22
nickvergessen
nickvergessen reviewed Mar 23, 2022
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@blizzz blizzz force-pushed the fix/31681/oracle-str-col branch from 563d4b1 to f08f09b Compare March 23, 2022 16:32
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come-nc reviewed Mar 24, 2022
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You also need to change the check in AbstractMapping::map
And I do not think the migration step for existing data is correct. Incomplete dn in mapping is just broken mapping lines which will appear as remnants for users and ghost for groups.
These lines should be deleted I suppose? Or the migration should just fail and we consider this an invalid previous state.

Realistically the case should not appear as maximum dn length was 255 not long ago and I would not expect anyone using >4000 dn.

Ok so actually maybe it’s good to truncate the lines because it will allow the admin to use the remnant system to clean up users. And they can see what the dn was to know which entry is concerned.
So maybe leave it like this but log which entries have been truncated?

@come-nc come-nc mentioned this pull request Mar 24, 2022
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@skjnldsv skjnldsv mentioned this pull request Mar 24, 2022
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blizzz commented Mar 28, 2022

I got confirmation that the first commits unblocks update with Oracle for good.

@blizzz blizzz force-pushed the fix/31681/oracle-str-col branch from f08f09b to fd5318a Compare March 28, 2022 13:28
@blizzz blizzz requested a review from come-nc March 28, 2022 13:28
@blizzz blizzz mentioned this pull request Mar 28, 2022
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@come-nc come-nc force-pushed the fix/31681/oracle-str-col branch from fd5318a to 8d1c149 Compare March 29, 2022 15:02
@come-nc come-nc requested a review from nickvergessen March 29, 2022 16:11
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come-nc commented Mar 30, 2022

I do not understand the checkers failure, was there a composer update or something?

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come-nc commented Mar 30, 2022

/rebase

@nextcloud-command nextcloud-command force-pushed the fix/31681/oracle-str-col branch from 870f8ab to 0d4d282 Compare March 30, 2022 12:10
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come-nc commented Mar 30, 2022

/rebase

blizzz and others added 5 commits March 30, 2022 14:43
@blizzz @come-nc
limit ldap_dn columns to 4000
2f49f4a 
- enlarging string cols from 255 to more than 4000 fails on default
  Oracle installations for invalid datatype conversion

Signed-off-by: Arthur Schiwon <[email protected]>
@blizzz @come-nc
shrink ldap_dn column to 4000
52b57eb 
Signed-off-by: Arthur Schiwon <[email protected]>
@come-nc
Adapt max length limit in AbstactMapping to match database
6c7ba01 
Signed-off-by: Côme Chilliet <[email protected]>
@come-nc
Use the new octetLength function to filter lines to migrate
d07208b 
Signed-off-by: Côme Chilliet <[email protected]>
@come-nc
Build autoloaders
07ab258 
Signed-off-by: Côme Chilliet <[email protected]>
@nextcloud-command nextcloud-command force-pushed the fix/31681/oracle-str-col branch from 0d4d282 to 07ab258 Compare March 30, 2022 14:43
@come-nc come-nc merged commit 2bf0eff into master Mar 30, 2022
@come-nc come-nc deleted the fix/31681/oracle-str-col branch March 30, 2022 16:28
@blizzz blizzz mentioned this pull request Mar 31, 2022
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@PVince81 PVince81 mentioned this pull request Apr 8, 2022
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come-nc commented Dec 13, 2022

/backport to stable22

@backportbot-nextcloud backportbot-nextcloud bot mentioned this pull request Dec 13, 2022
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come-nc commented Dec 13, 2022

/backport to stable23

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[Bug]: reduce ldap_dn field to 4000 bytes

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