Fix PHP 8.1 "strlen(null)" exceptions trying to browse Diffusion repository code
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Authored by aklapper on Jun 12 2023, 00:26.

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speck

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O1: Blessed Committers

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T15462: PHP 8.1 "strlen(null)" exceptions trying to browse Diffusion repository code

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rP32b2d3871f72: Fix PHP 8.1 "strlen(null)" exceptions trying to browse Diffusion repository code

Summary

strlen() was used in Phabricator to check if a generic value is a non-empty string.
This behavior is deprecated since PHP 8.1. Phorge adopts phutil_nonempty_string() as a replacement.

Note: this may highlight other absurd input values that might be worth correcting
instead of just ignoring. If phutil_nonempty_string() throws an exception in your
instance, report it to Phorge to evaluate and fix that specific corner case.

EXCEPTION: (RuntimeException) strlen(): Passing null to parameter #1 ($string) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=master, ref.master=97e163187418), phorge(head=diffusionBrowseCode, ref.master=108cbcd09bd3, ref.diffusionBrowseCode=108cbcd09bd3)
  #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<phorge>/src/applications/diffusion/controller/DiffusionBrowseController.php:25]

EXCEPTION: (RuntimeException) strlen(): Passing null to parameter #1 ($string) of type string is deprecated at [<arcanist>/src/error/PhutilErrorHandler.php:261]
arcanist(head=master, ref.master=97e163187418), phorge(head=diffusionBrowseCode, ref.master=108cbcd09bd3, ref.diffusionBrowseCode=108cbcd09bd3)
  #0 <#2> PhutilErrorHandler::handleError(integer, string, string, integer) called at [<phorge>/src/applications/diffusion/conduit/DiffusionBrowseQueryConduitAPIMethod.php:40]

Closes T15462

Test Plan

After applying these two changes, get next expected exceptions about RuntimeException: file_exists(): Passing null to parameter #1 ($filename) of type string is deprecated and CommandException: Command failed with error #128! fatal: detected dubious ownership in repository at '/var/repo/1', but no RuntimeException about strlen() anymore.

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rP Phorge

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Event Timeline

aklapper created this revision.Jun 12 2023, 00:26

Owners added a reviewer: O1: Blessed Committers.Jun 12 2023, 00:26

Herald added subscribers: Cigaryno, Matthew, valerio.bozzolan and 2 others. · View Herald TranscriptJun 12 2023, 00:26

aklapper requested review of this revision.Jun 12 2023, 00:26

Harbormaster completed remote builds in B538: Diff 933.Jun 12 2023, 00:26

speck requested changes to this revision.Jun 12 2023, 00:46

speck added inline comments.

src/applications/diffusion/controller/DiffusionBrowseController.php
25	I think this would prevent beeping for “0” and possibly “null”, instead should use nonempty string

This revision now requires changes to proceed.Jun 12 2023, 00:46

aklapper added inline comments.Jun 12 2023, 00:56

src/applications/diffusion/controller/DiffusionBrowseController.php
25	@speck: I didn't use `phutil_nonempty_string` as my naive interpretation was that `getStr` comes from https://we.phorge.it/source/phorge/browse/master/src/aphront/AphrontRequest.php$209 allowing to return `null` as default. I'm happy to be wrong as I'm not familiar with the code base.