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<?php
declare(strict_types=1);
namespace Laminas\Filter\File;
use Laminas\Filter;
use Laminas\Filter\Exception;
use function file_exists;
use function file_get_contents;
use function file_put_contents;
use function is_array;
use function is_scalar;
use function is_writable;
/**
* Encrypts a given file and stores the encrypted file content
*
* @deprecated Since 2.24.0. This filter will be removed in 3.0. You are encouraged to use an alternative encryption
* library and write your own filter.
*/
class Encrypt extends Filter\Encrypt
{
/**
* New filename to set
*
* @var string
*/
protected $filename;
/**
* Returns the new filename where the content will be stored
*
* @return string
*/
public function getFilename()
{
return $this->filename;
}
/**
* Sets the new filename where the content will be stored
*
* @param string $filename (Optional) New filename to set
* @return self
*/
public function setFilename($filename = null)
{
$this->filename = $filename;
return $this;
}
/**
* Defined by Laminas\Filter\Filter
*
* Encrypts the file $value with the defined settings
*
* @param string|array $value Full path of file to change or $_FILES data array
* @return string|array The filename which has been set, or false when there were errors
* @throws Exception\InvalidArgumentException
* @throws Exception\RuntimeException
*/
public function filter($value)
{
if (! is_scalar($value) && ! is_array($value)) {
return $value;
}
// An uploaded file? Retrieve the 'tmp_name'
$isFileUpload = false;
if (is_array($value)) {
if (! isset($value['tmp_name'])) {
return $value;
}
$isFileUpload = true;
$uploadData = $value;
$value = $value['tmp_name'];
}
if (! file_exists($value)) {
throw new Exception\InvalidArgumentException("File '$value' not found");
}
if (! isset($this->filename)) {
$this->filename = $value;
}
if (file_exists($this->filename) && ! is_writable($this->filename)) {
throw new Exception\RuntimeException("File '{$this->filename}' is not writable");
}
$content = file_get_contents($value);
if ($content === false) {
throw new Exception\RuntimeException("Problem while reading file '$value'");
}
$encrypted = parent::filter($content);
$result = file_put_contents($this->filename, $encrypted);
if ($result === false) {
throw new Exception\RuntimeException("Problem while writing file '{$this->filename}'");
}
if ($isFileUpload) {
$uploadData['tmp_name'] = $this->filename;
return $uploadData;
}
return $this->filename;
}
}