Add Google authentication

vendor/OAuth/OAuth2/Service/Paypal.php

@@ -0,0 +1,103 @@
+<?php
+
+namespace OAuth\OAuth2\Service;
+
+use OAuth\OAuth2\Token\StdOAuth2Token;
+use OAuth\Common\Http\Exception\TokenResponseException;
+use OAuth\Common\Http\Uri\Uri;
+use OAuth\Common\Consumer\CredentialsInterface;
+use OAuth\Common\Http\Client\ClientInterface;
+use OAuth\Common\Storage\TokenStorageInterface;
+use OAuth\Common\Http\Uri\UriInterface;
+
+/**
+ * PayPal service.
+ *
+ * @author Flávio Heleno <flaviohbatista@gmail.com>
+ * @link https://developer.paypal.com/webapps/developer/docs/integration/direct/log-in-with-paypal/detailed/
+ */
+class Paypal extends AbstractService
+{
+    /**
+     * Defined scopes
+     * @link https://developer.paypal.com/webapps/developer/docs/integration/direct/log-in-with-paypal/detailed/
+     * @see  #attributes
+     */
+    const SCOPE_OPENID           = 'openid';
+    const SCOPE_PROFILE          = 'profile';
+    const SCOPE_PAYPALATTRIBUTES = 'https://uri.paypal.com/services/paypalattributes';
+    const SCOPE_EMAIL            = 'email';
+    const SCOPE_ADDRESS          = 'address';
+    const SCOPE_PHONE            = 'phone';
+    const SCOPE_EXPRESSCHECKOUT  = 'https://uri.paypal.com/services/expresscheckout';
+
+    public function __construct(
+        CredentialsInterface $credentials,
+        ClientInterface $httpClient,
+        TokenStorageInterface $storage,
+        $scopes = array(),
+        UriInterface $baseApiUri = null
+    ) {
+        parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);
+
+        if (null === $baseApiUri) {
+            $this->baseApiUri = new Uri('https://api.paypal.com/v1/');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAuthorizationEndpoint()
+    {
+        return new Uri('https://www.paypal.com/webapps/auth/protocol/openidconnect/v1/authorize');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAccessTokenEndpoint()
+    {
+        return new Uri('https://api.paypal.com/v1/identity/openidconnect/tokenservice');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAuthorizationMethod()
+    {
+        return static::AUTHORIZATION_METHOD_HEADER_BEARER;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function parseAccessTokenResponse($responseBody)
+    {
+        $data = json_decode($responseBody, true);
+
+        if (null === $data || !is_array($data)) {
+            throw new TokenResponseException('Unable to parse response.');
+        } elseif (isset($data['message'])) {
+            throw new TokenResponseException('Error in retrieving token: "' . $data['message'] . '"');
+        } elseif (isset($data['name'])) {
+            throw new TokenResponseException('Error in retrieving token: "' . $data['name'] . '"');
+        }
+
+        $token = new StdOAuth2Token();
+        $token->setAccessToken($data['access_token']);
+        $token->setLifeTime($data['expires_in']);
+
+        if (isset($data['refresh_token'])) {
+            $token->setRefreshToken($data['refresh_token']);
+            unset($data['refresh_token']);
+        }
+
+        unset($data['access_token']);
+        unset($data['expires_in']);
+
+        $token->setExtraParams($data);
+
+        return $token;
+    }
+}