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fix(files): Don't try to hash invalid paths #46845

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Fix #44110

Summary

Another approach to #46218

This helps debug by adding logging statements to determine where null is being introduced, and force returning false in these cases.

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@solracsf solracsf added the 3. to review Waiting for reviews label Jul 29, 2024
@solracsf solracsf added this to the Nextcloud 30 milestone Jul 29, 2024
lib/private/Files/Storage/Local.php Fixed Show fixed Hide fixed
lib/private/Files/Storage/Local.php Fixed Show fixed Hide fixed
lib/private/Files/Storage/Local.php Fixed Show fixed Hide fixed
lib/private/Files/Storage/Local.php Fixed Show fixed Hide fixed
lib/private/Files/Storage/Local.php Fixed Show fixed Hide fixed
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Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>

fix: don't use OCP

Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>

fix: Also check if null

Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>
@blizzz blizzz mentioned this pull request Jul 30, 2024
@solracsf solracsf changed the title fix(files): Catch null possibilities before hash fix(files): Don't try to hash invalid paths Jul 31, 2024
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@come-nc come-nc left a comment

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The null check on sourcePath is redundand since getSourcePath does not return null, and all the rest is already checked by hash_file function.
And getSourcePath is not supposed to return null, return type is string. Only in phpdoc though, we should make it strict.

This will not fix what you want it to fix in my opinion.

lib/private/Files/Storage/Local.php Outdated Show resolved Hide resolved
solracsf and others added 2 commits August 1, 2024 11:06
Co-authored-by: Côme Chilliet <91878298+come-nc@users.noreply.github.com>
Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>
Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>
@blizzz blizzz mentioned this pull request Aug 1, 2024
This was referenced Aug 5, 2024
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solracsf commented Aug 7, 2024

In my case, the file on disk (from the issue linked) was returning read errors mapping ....: Input/output error (5) so the file was indeed not readable.

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come-nc commented Aug 12, 2024

In my case, the file on disk (from the issue linked) was returning read errors mapping ....: Input/output error (5) so the file was indeed not readable.

Still, hash_file would return false and not null.

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PHP CS fixer lint says no 🫠

@skjnldsv skjnldsv added 2. developing Work in progress and removed 3. to review Waiting for reviews labels Aug 14, 2024
@skjnldsv skjnldsv modified the milestones: Nextcloud 30, Nextcloud 31 Aug 14, 2024
solracsf and others added 2 commits August 15, 2024 00:05
Co-authored-by: Côme Chilliet <91878298+come-nc@users.noreply.github.com>
Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>
Signed-off-by: Git'Fellow <12234510+solracsf@users.noreply.github.com>
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Closing as #46218 has been merged.

@solracsf solracsf closed this Sep 17, 2024
@skjnldsv skjnldsv deleted the catchNullHash branch September 17, 2024 07:51
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[Bug]: \OC\Files\View::hash(): Return value must be of type string|bool, null returned
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