/**
* Defined by Zend\Filter\FilterInterface
*
* Decrypts the file $value with the defined settings
*
* @param string|array $value Full path of file to change or $_FILES data array
* @return string|array The filename which has been set
* @throws Exception\InvalidArgumentException
* @throws Exception\RuntimeException
*/
public function filter($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}'");
}
$decrypted = parent::filter($content);
$result = file_put_contents($this->filename, $decrypted);
if (!$result) {
throw new Exception\RuntimeException("Problem while writing file '{$this->filename}'");
}
if ($isFileUpload) {
$uploadData['tmp_name'] = $this->filename;
return $uploadData;
}
return $this->filename;
}
/**
* Defined by Zend\Filter\FilterInterface
*
* Decrypts 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}'");
}
$decrypted = parent::filter($content);
$result = file_put_contents($this->_filename, $decrypted);
if (!$result) {
throw new Exception\RuntimeException("Problem while writing file '{$this->_filename}'");
}
return $this->_filename;
}
/**
* Ensures that the filter allows de/encryption
*
* @return void
*/
public function testEncryptionWithDecryptionOpenssl()
{
if (!extension_loaded('openssl')) {
$this->markTestSkipped('Openssl extension not installed');
}
$filter = new EncryptFilter(array('adapter' => 'Openssl'));
$filter->setPublicKey(__DIR__ . '/_files/publickey.pem');
$output = $filter('teststring');
$envelopekeys = $filter->getEnvelopeKey();
$this->assertNotEquals('teststring', $output);
$filter = new DecryptFilter(array('adapter' => 'Openssl'));
$filter->setPassphrase('zPUp9mCzIrM7xQOEnPJZiDkBwPBV9UlITY0Xd3v4bfIwzJ12yPQCAkcR5BsePGVw
RK6GS5RwXSLrJu9Qj8+fk0wPj6IPY5HvA9Dgwh+dptPlXppeBm3JZJ+92l0DqR2M
ccL43V3Z4JN9OXRAfGWXyrBJNmwURkq7a2EyFElBBWK03OLYVMevQyRJcMKY0ai+
tmnFUSkH2zwnkXQfPUxg9aV7TmGQv/3TkK1SziyDyNm7GwtyIlfcigCCRz3uc77U
Izcez5wgmkpNElg/D7/VCd9E+grTfPYNmuTVccGOes+n8ISJJdW0vYX1xwWv5l
bK22CwD/l7SMBOz4M9XH0Jb0OhNxLza4XMDu0ANMIpnkn1KOcmQ4gB8fmAbBt');
$filter->setPrivateKey(__DIR__ . '/_files/privatekey.pem');
$filter->setEnvelopeKey($envelopekeys);
$input = $filter($output);
$this->assertEquals('teststring', trim($input));
}
/**
* @return void
*/
public function testCallingUnknownMethod()
{
if (!extension_loaded('mcrypt')) {
$this->markTestSkipped('Mcrypt extension not installed');
}
$this->setExpectedException('\\Zend\\Filter\\Exception\\BadMethodCallException', 'Unknown method');
$filter = new DecryptFilter();
$filter->getUnknownMethod();
}
/**
* @dataProvider returnUnfilteredDataProvider
* @return void
*/
public function testReturnUnfiltered($input)
{
if (!extension_loaded('mcrypt')) {
$this->markTestSkipped('Mcrypt extension not installed');
}
$decrypt = new DecryptFilter(array('adapter' => 'BlockCipher', 'key' => 'testkey'));
$decrypt->setVector('1234567890123456890');
$decrypted = $decrypt->filter($input);
$this->assertEquals($input, $decrypted);
}