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<?php |
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namespace Xsolve\SalesforceClient\Security\Authentication; |
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use GuzzleHttp\Psr7\Request; |
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use Http\Client\Exception\HttpException; |
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use Http\Client\HttpClient; |
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use Xsolve\SalesforceClient\Request\RequestInterface; |
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use Xsolve\SalesforceClient\Security\Authentication\Strategy\RegenerateStrategyInterface; |
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use Xsolve\SalesforceClient\Security\Token\Token; |
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use Xsolve\SalesforceClient\Security\Token\TokenInterface; |
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class Authenticator implements AuthenticatorInterface |
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{ |
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const ENDPOINT = '/services/oauth2/token'; |
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/** |
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* @var HttpClient |
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*/ |
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protected $client; |
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/** |
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* @var RegenerateStrategyInterface[] |
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*/ |
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protected $regenerateStrategies; |
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/** |
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* @param HttpClient $client |
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* @param RegenerateStrategyInterface[] $regenerateStrategies |
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*/ |
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public function __construct(HttpClient $client, array $regenerateStrategies = []) |
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{ |
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$this->client = $client; |
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$this->regenerateStrategies = $regenerateStrategies; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function authenticate(Credentials $credentials): TokenInterface |
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{ |
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try { |
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$response = $this->client->sendRequest($this->getRequest($credentials))->getBody(); |
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} catch (HttpException $e) { |
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throw new Exception\AuthenticationRequestException('Authentication request failed.', 400, $e); |
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} |
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$parsedBody = $this->parse($response); |
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return new Token( |
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$parsedBody['token_type'], |
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$parsedBody['access_token'], |
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$parsedBody['instance_url'], |
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isset($parsedBody['refresh_token']) ? $parsedBody['refresh_token'] : '' |
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); |
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} |
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/** |
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* @throws Exception\InvalidAuthenticationResponseException |
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*/ |
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private function parse($rawResponse): array |
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{ |
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$parsedBody = json_decode($rawResponse, true); |
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if (!$parsedBody) { |
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throw new Exception\InvalidAuthenticationResponseException( |
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sprintf('Cannot decode response: %s', $rawResponse) |
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); |
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} |
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if (!$this->hasRequiredFields($parsedBody)) { |
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throw new Exception\InvalidAuthenticationResponseException( |
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'Response does not contains required fields: token_type, access_token, instance_url.' |
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); |
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} |
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return $parsedBody; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function regenerate(Credentials $credentials, TokenInterface $token): TokenInterface |
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{ |
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foreach ($this->regenerateStrategies as $strategy) { |
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if ($strategy->supports($credentials, $token)) { |
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return $this->authenticate($strategy->getCredentials($credentials, $token)); |
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} |
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} |
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throw new Exception\UnsupportedCredentialsException('Strategy not found for given credentials and token.'); |
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} |
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protected function hasRequiredFields(array $array): bool |
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{ |
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if (!isset($array['token_type'])) { |
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return false; |
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} |
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if (!isset($array['access_token'])) { |
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return false; |
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} |
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if (!isset($array['instance_url'])) { |
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return false; |
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} |
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return true; |
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} |
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protected function getRequest(Credentials $credentials): Request |
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{ |
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return new Request( |
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RequestInterface::METHOD_POST, |
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self::ENDPOINT, |
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['Content-type' => RequestInterface::TYPE_FORM], |
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http_build_query($credentials->getParameters()) |
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); |
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} |
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} |
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xsolve-pl /
salesforce-client
