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<?php |
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/** |
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* Quantum PHP Framework |
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* |
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* An open source software development framework for PHP |
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* |
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* @package Quantum |
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* @author Arman Ag. <[email protected]> |
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* @copyright Copyright (c) 2018 Softberg LLC (https://softberg.org) |
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* @link http://quantum.softberg.org/ |
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* @since 2.9.0 |
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*/ |
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namespace Quantum\Libraries\Storage\Adapters\Dropbox; |
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use Quantum\Exceptions\DatabaseException; |
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use Quantum\Exceptions\CryptorException; |
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use Quantum\Libraries\Curl\HttpClient; |
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use Quantum\Exceptions\HttpException; |
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use Quantum\Exceptions\LangException; |
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use Quantum\Exceptions\AppException; |
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use Exception; |
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class DropboxApp |
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{ |
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/** |
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* Authorization URL |
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*/ |
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const AUTH_URL = 'https://dropbox.com/oauth2/authorize'; |
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/** |
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* Token URL |
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*/ |
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const AUTH_TOKEN_URL = 'https://api.dropboxapi.com/oauth2/token'; |
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/** |
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* URL for remote procedure call endpoints |
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*/ |
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const RPC_API_URL = 'https://api.dropboxapi.com/2'; |
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/** |
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* URL for content endpoints |
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*/ |
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const CONTENT_API_URL = 'https://content.dropboxapi.com/2'; |
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/** |
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* Create folder endpoint |
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*/ |
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const ENDPOINT_CREATE_FOLDER = 'files/create_folder_v2'; |
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/** |
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* Delete file endpoint |
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*/ |
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const ENDPOINT_DELETE_FILE = 'files/delete_v2'; |
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/** |
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* Download file endpoint |
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*/ |
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const ENDPOINT_DOWNLOAD_FILE = 'files/download'; |
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/** |
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* Upload file endpoint |
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*/ |
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const ENDPOINT_UPLOAD_FILE = 'files/upload'; |
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/** |
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* Move file endpoint |
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*/ |
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const ENDPOINT_MOVE_FILE = 'files/move_v2'; |
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/** |
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* Copy file endpoint |
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*/ |
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const ENDPOINT_COPY_FILE = 'files/copy_v2'; |
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/** |
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* Get metadata for file endpoint |
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*/ |
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const ENDPOINT_FILE_METADATA = 'files/get_metadata'; |
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/** |
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* List folder endpoint |
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*/ |
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const ENDPOINT_LIST_FOLDER = 'files/list_folder'; |
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/** |
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* Access token status indicating it needs refresh |
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*/ |
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const ACCESS_TOKEN_STATUS = ['invalid_access_token', 'expired_access_token']; |
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/** |
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* @var HttpClient |
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*/ |
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private $httpClient; |
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/** |
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* @var string |
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*/ |
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private $appKey = null; |
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/** |
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* @var string |
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*/ |
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private $appSecret = null; |
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/** |
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* @var TokenServiceInterface |
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*/ |
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private $tokenService = null; |
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/** |
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* DropboxApp constructor |
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* @param string $appKey |
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* @param string $appSecret |
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* @param TokenServiceInterface $tokenService |
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* @param HttpClient $httpClient |
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*/ |
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public function __construct(string $appKey, string $appSecret, TokenServiceInterface $tokenService, HttpClient $httpClient) |
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{ |
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$this->appKey = $appKey; |
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$this->appSecret = $appSecret; |
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$this->tokenService = $tokenService; |
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$this->httpClient = $httpClient; |
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} |
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/** |
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* Gets the auth URL |
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* @throws CryptorException |
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* @throws AppException |
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* @throws DatabaseException |
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*/ |
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public function getAuthUrl(string $redirectUrl, string $tokenAccessType = 'offline'): string |
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{ |
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$params = [ |
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'client_id' => $this->appKey, |
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'response_type' => 'code', |
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'state' => csrf_token(), |
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'redirect_uri' => $redirectUrl, |
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'token_access_type' => $tokenAccessType, |
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]; |
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return self::AUTH_URL . '?' . http_build_query($params, '', '&'); |
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} |
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/** |
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* Fetch tokens |
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* @param string $code |
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* @param string $redirectUrl |
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* @return object|null |
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* @throws AppException |
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* @throws HttpException |
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* @throws LangException |
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*/ |
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public function fetchTokens(string $code, string $redirectUrl): ?object |
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{ |
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$params = [ |
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'code' => $code, |
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'grant_type' => 'authorization_code', |
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'client_id' => $this->appKey, |
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'client_secret' => $this->appSecret, |
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'redirect_uri' => $redirectUrl, |
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]; |
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$tokenUrl = self::AUTH_TOKEN_URL . '?' . http_build_query($params, '', '&'); |
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$response = $this->sendRequest($tokenUrl); |
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$this->tokenService->saveTokens($response->access_token, $response->refresh_token); |
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return $response; |
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} |
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/** |
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* Sends rpc request |
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* @param string $endpoint |
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* @param array|null $params |
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* @return mixed|null |
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* @throws Exception |
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*/ |
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public function rpcRequest(string $endpoint, ?array $params = []) |
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{ |
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$headers = [ |
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'Authorization' => 'Bearer ' . $this->tokenService->getAccessToken(), |
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'Content-Type' => 'application/json' |
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]; |
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return $this->sendRequest(self::RPC_API_URL . '/' . $endpoint, $params, $headers); |
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} |
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/** |
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* Sends content request |
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* @param string $endpoint |
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* @param array $params |
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* @param string $content |
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* @return mixed|null |
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* @throws Exception |
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*/ |
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public function contentRequest(string $endpoint, array $params, string $content = '') |
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{ |
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$headers = [ |
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'Authorization' => 'Bearer ' . $this->tokenService->getAccessToken(), |
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'Dropbox-API-Arg' => json_encode($params), |
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'Content-Type' => 'application/octet-stream' |
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]; |
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return $this->sendRequest(self::CONTENT_API_URL . '/' . $endpoint, $content, $headers); |
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} |
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/** |
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* Gets the normalized path |
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* @param string $name |
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* @return array |
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*/ |
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public function path(string $name): array |
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{ |
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return ['path' => '/' . trim($name, '/')]; |
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} |
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/** |
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* Sends request |
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* @param string $uri |
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* @param mixed|null $data |
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* @param array $headers |
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* @return mixed|null |
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* @throws AppException |
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* @throws HttpException |
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* @throws LangException |
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* @throws Exception |
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*/ |
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public function sendRequest(string $uri, $data = null, array $headers = []) |
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{ |
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$this->httpClient |
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->createRequest($uri) |
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->setMethod('POST') |
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->setData($data) |
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->setHeaders($headers) |
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->start(); |
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$errors = $this->httpClient->getErrors(); |
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$responseBody = $this->httpClient->getResponseBody(); |
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if ($errors) { |
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$code = $errors['code']; |
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if ($this->accessTokenNeedsRefresh($code, $responseBody)) { |
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$prevUrl = $this->httpClient->url(); |
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$prevData = $this->httpClient->getData(); |
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$prevHeaders = $this->httpClient->getRequestHeaders(); |
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$refreshToken = $this->tokenService->getRefreshToken(); |
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$accessToken = $this->fetchAccessTokenByRefreshToken($refreshToken); |
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$this->tokenService->saveTokens($accessToken); |
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$prevHeaders['Authorization'] = 'Bearer ' . $accessToken; |
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$responseBody = $this->sendRequest($prevUrl, $prevData, $prevHeaders); |
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} else { |
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throw new Exception(json_encode($responseBody), E_ERROR); |
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} |
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} |
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return $responseBody; |
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} |
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/** |
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* Fetches the access token by refresh token |
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* @param string $refreshToken |
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* @return string |
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* @throws AppException |
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* @throws HttpException |
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* @throws LangException |
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*/ |
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private function fetchAccessTokenByRefreshToken(string $refreshToken): string |
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{ |
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$params = [ |
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'refresh_token' => $refreshToken, |
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'grant_type' => 'refresh_token', |
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'client_id' => $this->appKey, |
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'client_secret' => $this->appSecret |
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]; |
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$tokenUrl = self::AUTH_TOKEN_URL . '?' . http_build_query($params, '', '&'); |
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$response = $this->sendRequest($tokenUrl); |
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return $response->access_token; |
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} |
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/** |
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* Checks if the access token need refresh |
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* @param int $code |
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* @param $message |
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* @return bool |
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*/ |
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private function accessTokenNeedsRefresh(int $code, $message): bool |
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{ |
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if ($code != 401) { |
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return false; |
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} |
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$error = (array)$message->error; |
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if (!isset($error['.tag']) && !in_array($error['.tag'], self::ACCESS_TOKEN_STATUS)) { |
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return false; |
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} |
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return true; |
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} |
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} |