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Checking for script tags in GIFs etc #3017

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merged 1 commit into from Nov 18, 2021
Merged

Checking for script tags in GIFs etc #3017

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14 changes: 14 additions & 0 deletions Idno/Entities/File.php
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Expand Up @@ -285,6 +285,20 @@ public static function isImage($file_path)
return false;
}

/**
* Detects whether the file contains PHP or script tags, eg to check for embedded code in GIFs
* @param $file_path
* @return bool
*/
public static function isFileFreeFromScriptTags($file_path)
{
if ($contents = file_get_contents($file_path)) {
if (stripos($contents, '<script') || strpos($contents, '<?')) return false;
return true;
}
return false;
}

/**
* Retrieve a file by ID
*
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