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default the preview_max_memory to a half of the max php memory #35854

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default the preview_max_memory to a half of the max php memory #35854

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c5212ed
default the preview_max_memory to a half of the max php memory
szaimen Dec 21, 2022
5848a36
hopefully fix nodb failure
szaimen Dec 21, 2022
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default the preview_max_memory to a half of the max php memory 
Signed-off-by: Simon L <[email protected]>
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@szaimen
szaimen committed Dec 21, 2022
commit c5212ed721ca632c804e2abffb2e4c946374739c
4 changes: 2 additions & 2 deletions config/config.sample.php
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Expand Up @@ -1171,9 +1171,9 @@
* If creating the image would allocate more memory, preview generation will
* be disabled and the default mimetype icon is shown. Set to -1 for no limit.
*
* Defaults to ``128`` megabytes
* Defaults to half of the max PHP memory which is ``256`` megabytes in case of 512 max php memory
*/
'preview_max_memory' => 128,
'preview_max_memory' => 256,

/**
* custom path for LibreOffice/OpenOffice binary
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17 changes: 13 additions & 4 deletions lib/private/legacy/OC_Image.php
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Expand Up @@ -50,9 +50,6 @@
*/
class OC_Image implements \OCP\IImage {

// Default memory limit for images to load (128 MBytes).
protected const DEFAULT_MEMORY_LIMIT = 128;

// Default quality for jpeg images
protected const DEFAULT_JPEG_QUALITY = 80;

Expand Down Expand Up @@ -101,6 +98,18 @@ public function __construct($imageRef = null, \OCP\ILogger $logger = null, \OCP\
}
}

public static function getDefaultMemoryLimit(): int {
static $memoryLimit;
if (!isset($memoryLimit)) {
$memoryInfo = \OC::$server->query(\OC\MemoryInfo::class);
$memoryLimit = $memoryInfo->getMemoryLimit();
if ($memoryLimit > 0) {
$memoryLimit = $memoryLimit / (1024 * 1024 * 2); // getMemoryLimit returns the value in bytes but we need it in megabytes and divide it by 2
}
}
return $memoryLimit;
}

/**
* Determine whether the object contains an image resource.
*
Expand Down Expand Up @@ -577,7 +586,7 @@ public function loadFromFileHandle($handle) {
* @return bool true if allocating is allowed, false otherwise
*/
private function checkImageMemory($width, $height) {
$memory_limit = $this->config->getSystemValueInt('preview_max_memory', self::DEFAULT_MEMORY_LIMIT);
$memory_limit = $this->config->getSystemValueInt('preview_max_memory', self::getDefaultMemoryLimit());
if ($memory_limit < 0) {
// Not limited.
return true;
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