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do not write htaccess file if disk space is too low #41544

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Nov 20, 2023
Merged

do not write htaccess file if disk space is too low #41544

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4c522f0
do not write htaccess file if disk space is too low
szaimen Nov 16, 2023
3f6caa4
document error
szaimen Nov 17, 2023
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do not write htaccess file if disk space is too low 
Signed-off-by: Simon L <szaimen@e.mail.de>
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@szaimen
szaimen committed Nov 17, 2023
commit 4c522f0f654ccbd1f48935a7a99324600f0a1c16
8 changes: 8 additions & 0 deletions lib/private/Setup.php
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Original file line number Diff line number Diff line change
Expand Up @@ -560,6 +560,14 @@ public static function updateHtaccess() {
}

if ($content !== '') {
// Never write file back if disk space should be too low
if (function_exists('disk_free_space')) {
$df = disk_free_space(\OC::$SERVERROOT);
$size = strlen($content) + 10240;
if ($df !== false && $df < (float)$size) {
throw new \Exception(\OC::$SERVERROOT . " does not have enough space for writing the htaccess file! Not writing it back!");
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}
}
//suppress errors in case we don't have permissions for it
return (bool)@file_put_contents($setupHelper->pathToHtaccess(), $htaccessContent . $content . "\n");
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You can also check if all bytes have been written. Should be something like this:

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return (bool)@file_put_contents($setupHelper->pathToHtaccess(), $htaccessContent . $content . "\n");
$fullContent = $htaccessContent . $content . "\n";
return @file_put_contents($setupHelper->pathToHtaccess(), $$fullContent) === strlen($fullContent);

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This is not going to help here. The prpblem is that file_pu_content truncates the file if there is not enough space which should never happen as the file is very important to work...

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We had the same prpblem with config.php before and fixed in in the same way.

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It's another security in case something happen during the copy.
The file will already be erased, but at least you'll have the info

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Ah I see.

}
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