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<?php |
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namespace Slides\Connector\Auth\Sync; |
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use Illuminate\Encryption\Encrypter; |
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/** |
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* Trait ExportsUsers |
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* |
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* @package Slides\Connector\Auth\Sync |
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*/ |
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trait ExportsUsers |
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{ |
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/** |
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* The supported cipher algorithm. |
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* |
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* @var string |
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*/ |
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private $cipher = 'AES-256-CBC'; |
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/** |
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* The randomly generated encryption/decryption key. |
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* |
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* @var string |
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*/ |
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private $encryptionKey; |
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/** |
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* Export local users to a file in the compressed GZIP format. |
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* |
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* @param string $path |
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* |
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* @return void |
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*/ |
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public function export(string $path) |
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{ |
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$users = $this->formatLocals($this->locals); |
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$data = json_encode($users); |
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$data = gzencode($data); |
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$data = $this->encrypt($data); |
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$data = $this->makeHeaders($data); |
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file_put_contents($path, $data); |
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} |
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/** |
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* Get a generated encryption key. |
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* |
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* @return string|null |
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*/ |
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public function getEncryptionKey() |
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{ |
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if(!$this->encryptionKey) { |
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return null; |
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} |
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return base64_encode($this->encryptionKey); |
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} |
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/** |
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* Encrypt a data and retrieve the key. |
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* |
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* @param string $data |
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* |
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* @return string |
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*/ |
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private function encrypt(string &$data): string |
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{ |
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$encrypter = new Encrypter( |
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$this->generateRandomKey(), |
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$this->cipher |
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); |
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return $encrypter->encrypt($data); |
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} |
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/** |
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* Generate a random key for the dump. |
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* |
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* @return string |
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* |
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* @throws |
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*/ |
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private function generateRandomKey(): string |
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{ |
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$this->encryptionKey = random_bytes(16); |
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// Create a signature of remote service credentials |
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$sign = hash('sha256', $this->credential('public') . $this->credential('secret')); |
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return $this->encryptionKey . ':' . substr($sign, 0, 15); |
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} |
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/** |
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* Make the headers. |
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* |
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* @param string $payload |
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* |
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* @return string |
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*/ |
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private function makeHeaders(string $payload): string |
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{ |
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$headers = [ |
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'public' => $this->credential('public'), |
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'modes' => $this->modes |
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]; |
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$headers = serialize($headers); |
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return base64_encode($headers) . '/' . $payload; |
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} |
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/** |
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* The credentials. |
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* |
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* @return array |
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*/ |
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private function credentials(): array |
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{ |
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return [ |
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'public' => config('connector.credentials.auth.public'), |
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'secret' => config('connector.credentials.auth.secret') |
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]; |
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} |
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/** |
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* Retrieve a credential value |
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* |
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* @return string |
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*/ |
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private function credential(string $key) |
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{ |
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return array_get($this->credentials(), $key); |
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} |
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} |
24Slides /
auth-connector
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