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fix(preview-generator): Throw exception before dividing by zero when generating previews

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If the maximum preview generated gives some kind of invalid IImage, it's dimentions and filename can be set to zero.
And then later we do a division by zero to keep the aspect ratio of the previews.

Signed-off-by: Thomas Citharel <tcit@tcit.fr>
This commit is contained in:
Thomas Citharel 2023-02-13 16:47:26 +01:00
parent 8f0849a317
commit e60888d988
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4
lib/private/Preview/Generator.php
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@ -170,6 +170,10 @@ class Generator {
[$maxWidth, $maxHeight] = $this->getPreviewSize($maxPreview, $previewVersion);
if ($maxWidth <= 0 || $maxHeight <= 0) {
throw new NotFoundException('The maximum preview sizes are zero or less pixels');
}
$preview = null;
foreach ($specifications as $specification) {