/**
* Defined by Zend\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)
{
// An uploaded file? Retrieve the 'tmp_name'
$isFileUpload = is_array($value) && isset($value['tmp_name']);
if ($isFileUpload) {
$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) and !is_writable($this->filename)) {
throw new Exception\RuntimeException("File '{$this->filename}' is not writable");
}
$content = file_get_contents($value);
if (!$content) {
throw new Exception\RuntimeException("Problem while reading file '{$value}'");
}
$encrypted = parent::filter($content);
$result = file_put_contents($this->filename, $encrypted);
if (!$result) {
throw new Exception\RuntimeException("Problem while writing file '{$this->filename}'");
}
if ($isFileUpload) {
$uploadData['tmp_name'] = $this->filename;
return $uploadData;
}
return $this->filename;
}
/**
* Ensures that the encryption works fine
*/
public function testEncryptBlockCipher()
{
if (!extension_loaded('mcrypt')) {
$this->markTestSkipped('Mcrypt extension not installed');
}
$encrypt = new EncryptFilter(array('adapter' => 'BlockCipher', 'key' => 'testkey'));
$encrypt->setVector('1234567890123456890');
$encrypted = $encrypt->filter('test');
$this->assertEquals($encrypted, 'ec133eb7460682b0020b736ad6d2ef14c35de0f1e5976330ae1dd096ef3b4cb7MTIzNDU2Nzg5MDEyMzQ1NoZvxY1JkeL6TnQP3ug5F0k=');
}
/**
* Defined by Zend\Filter\Filter
*
* Encrypts the file $value with the defined settings
*
* @param string $value Full path of file to change
* @return string The filename which has been set, or false when there were errors
* @throws Exception\InvalidArgumentException
* @throws Exception\RuntimeException
*/
public function filter($value)
{
if (!file_exists($value)) {
throw new Exception\InvalidArgumentException("File '{$value}' not found");
}
if (!isset($this->filename)) {
$this->filename = $value;
}
if (file_exists($this->filename) and !is_writable($this->filename)) {
throw new Exception\RuntimeException("File '{$this->filename}' is not writable");
}
$content = file_get_contents($value);
if (!$content) {
throw new Exception\RuntimeException("Problem while reading file '{$value}'");
}
$encrypted = parent::filter($content);
$result = file_put_contents($this->filename, $encrypted);
if (!$result) {
throw new Exception\RuntimeException("Problem while writing file '{$this->filename}'");
}
return $this->filename;
}
/**
* @dataProvider returnUnfilteredDataProvider
* @return void
*/
public function testReturnUnfiltered($input)
{
if (!extension_loaded('mcrypt')) {
$this->markTestSkipped('Mcrypt extension not installed');
}
$encrypt = new EncryptFilter(array('adapter' => 'BlockCipher', 'key' => 'testkey'));
$encrypt->setVector('1234567890123456890');
$encrypted = $encrypt->filter($input);
$this->assertEquals($input, $encrypted);
}