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<?php |
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namespace ArgentCrusade\Selectel\CloudStorage\Api; |
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use RuntimeException; |
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use GuzzleHttp\Client; |
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use GuzzleHttp\ClientInterface; |
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use GuzzleHttp\Exception\RequestException; |
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use ArgentCrusade\Selectel\CloudStorage\Contracts\Api\ApiClientContract; |
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use ArgentCrusade\Selectel\CloudStorage\Exceptions\AuthenticationFailedException; |
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class ApiClient implements ApiClientContract |
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{ |
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const AUTH_URL = 'https://auth.selcdn.ru'; |
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/** |
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* API Username. |
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* |
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* @var string |
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*/ |
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protected $username; |
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/** |
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* API Password. |
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* |
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* @var string |
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*/ |
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protected $password; |
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/** |
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* Authorization token. |
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* |
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* @var string |
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*/ |
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protected $token; |
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/** |
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* Storage URL. |
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* |
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* @var string |
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*/ |
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protected $storageUrl; |
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/** |
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* HTTP Client. |
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* |
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* @var \GuzzleHttp\ClientInterface |
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*/ |
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protected $httpClient; |
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/** |
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* Creates new API Client instance. |
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* |
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* @param string $username |
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* @param string $password |
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*/ |
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public function __construct($username, $password) |
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{ |
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$this->username = $username; |
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$this->password = $password; |
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} |
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/** |
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* Replaces HTTP Client instance. |
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* |
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* @param \GuzzleHttp\ClientInterface $httpClient |
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* |
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* @return \ArgentCrusade\Selectel\CloudStorage\Contracts\Api\ApiClientContract |
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*/ |
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public function setHttpClient(ClientInterface $httpClient) |
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{ |
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$this->httpClient = $httpClient; |
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return $this; |
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} |
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/** |
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* HTTP Client. |
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* |
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* @return \GuzzleHttp\ClientInterface|null |
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*/ |
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public function getHttpClient() |
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{ |
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if (!is_null($this->httpClient)) { |
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return $this->httpClient; |
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} |
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return $this->httpClient = new Client([ |
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'base_uri' => $this->storageUrl(), |
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'headers' => [ |
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'X-Auth-Token' => $this->token(), |
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], |
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]); |
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} |
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/** |
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* Authenticated user's token. |
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* |
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* @return string |
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*/ |
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public function token() |
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{ |
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return $this->token; |
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} |
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/** |
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* Storage URL. |
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* |
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* @return string |
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*/ |
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public function storageUrl() |
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{ |
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return $this->storageUrl; |
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} |
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/** |
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* Determines if user is authenticated. |
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* |
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* @return bool |
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*/ |
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public function authenticated() |
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{ |
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return !is_null($this->token()); |
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} |
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/** |
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* Performs authentication request. |
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* |
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* @throws \ArgentCrusade\Selectel\CloudStorage\Exceptions\AuthenticationFailedException |
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* @throws \RuntimeException |
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*/ |
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public function authenticate() |
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{ |
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if (!is_null($this->token)) { |
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return; |
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} |
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$response = $this->authenticationResponse(); |
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if (!$response->hasHeader('X-Auth-Token')) { |
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throw new AuthenticationFailedException('Given credentials are wrong.', 403); |
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} |
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if (!$response->hasHeader('X-Storage-Url')) { |
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throw new RuntimeException('Storage URL is missing.', 500); |
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} |
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$this->token = $response->getHeaderLine('X-Auth-Token'); |
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$this->storageUrl = $response->getHeaderLine('X-Storage-Url'); |
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} |
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/** |
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* Performs authentication request and returns its response. |
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* |
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* @throws \ArgentCrusade\Selectel\CloudStorage\Exceptions\AuthenticationFailedException |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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public function authenticationResponse() |
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{ |
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$client = new Client(); |
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try { |
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$response = $client->request('GET', static::AUTH_URL, [ |
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'headers' => [ |
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'X-Auth-User' => $this->username, |
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'X-Auth-Key' => $this->password, |
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], |
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]); |
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} catch (RequestException $e) { |
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throw new AuthenticationFailedException('Given credentials are wrong.', 403); |
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} |
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return $response; |
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} |
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/** |
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* Performs new API request. $params array will be passed to HTTP Client as is. |
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* |
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* @param string $method |
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* @param string $url |
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* @param array $params = [] |
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* |
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* @return \Psr\Http\Message\ResponseInterface |
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*/ |
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public function request($method, $url, array $params = []) |
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{ |
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if (!$this->authenticated()) { |
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$this->authenticate(); |
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} |
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if (!isset($params['query'])) { |
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$params['query'] = []; |
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} |
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$params['query']['format'] = 'json'; |
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try { |
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$response = $this->getHttpClient()->request($method, $url, $params); |
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} catch (RequestException $e) { |
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return $e->getResponse(); |
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} |
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return $response; |
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} |
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} |
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