Add Google authentication

vendor/OAuth/OAuth2/Service/Salesforce.php

@@ -0,0 +1,92 @@
+<?php
+
+namespace OAuth\Common\Service;
+
+use OAuth\OAuth2\Service\AbstractService;
+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;
+
+class SalesforceService extends AbstractService
+{
+    /**
+     * Scopes
+     *
+     * @var string
+     */
+    const   SCOPE_API           =   'api',
+            SCOPE_REFRESH_TOKEN =   'refresh_token';
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAuthorizationEndpoint()
+    {
+        return new Uri('https://login.salesforce.com/services/oauth2/authorize');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAccessTokenEndpoint()
+    {
+        return new Uri('https://na1.salesforce.com/services/oauth2/token');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function parseRequestTokenResponse($responseBody)
+    {
+        parse_str($responseBody, $data);
+
+        if (null === $data || !is_array($data)) {
+            throw new TokenResponseException('Unable to parse response.');
+        } elseif (!isset($data['oauth_callback_confirmed']) || $data['oauth_callback_confirmed'] !== 'true') {
+            throw new TokenResponseException('Error in retrieving token.');
+        }
+
+        return $this->parseAccessTokenResponse($responseBody);
+    }
+
+    /**
+     * {@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['error'])) {
+            throw new TokenResponseException('Error in retrieving token: "' . $data['error'] . '"');
+        }
+
+        $token = new StdOAuth2Token();
+        $token->setAccessToken($data['access_token']);
+        // Salesforce tokens evidently never expire...
+        $token->setEndOfLife(StdOAuth2Token::EOL_NEVER_EXPIRES);
+        unset($data['access_token']);
+
+        if (isset($data['refresh_token'])) {
+            $token->setRefreshToken($data['refresh_token']);
+            unset($data['refresh_token']);
+        }
+
+        $token->setExtraParams($data);
+
+        return $token;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getExtraOAuthHeaders()
+    {
+        return array('Accept' => 'application/json');
+    }
+}