/**
* @dataProvider providesHeaders
*/
public function testReadHeader($header, $expected, $moduleId) {
$expected['oc_encryption_module'] = $moduleId;
$result = $this->util->readHeader($header);
$this->assertSameSize($expected, $result);
foreach ($expected as $key => $value) {
$this->assertArrayHasKey($key, $result);
$this->assertSame($value, $result[$key]);
}
}
/**
* read header from file
*
* @param string $path
* @return array
*/
protected function getHeader($path)
{
$header = '';
if ($this->storage->file_exists($path)) {
$handle = $this->storage->fopen($path, 'r');
$header = fread($handle, $this->util->getHeaderSize());
fclose($handle);
}
return $this->util->readHeader($header);
}
/**
* read encryption module needed to read/write the file located at $path
*
* @param string $path
* @return null|\OCP\Encryption\IEncryptionModule
* @throws ModuleDoesNotExistsException
* @throws \Exception
*/
protected function getEncryptionModule($path) {
$encryptionModule = null;
$rawHeader = $this->getHeader($path);
$header = $this->util->readHeader($rawHeader);
$encryptionModuleId = $this->util->getEncryptionModuleId($header);
if (!empty($encryptionModuleId)) {
try {
$encryptionModule = $this->encryptionManager->getEncryptionModule($encryptionModuleId);
} catch (ModuleDoesNotExistsException $e) {
$this->logger->critical('Encryption module defined in "' . $path . '" not loaded!');
throw $e;
}
}
return $encryptionModule;
}
