Add Google authentication

vendor/OAuth/OAuth2/Service/Heroku.php

@@ -0,0 +1,123 @@
+<?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;
+
+/**
+ * Heroku service.
+ *
+ * @author Thomas Welton <thomaswelton@me.com>
+ * @link https://devcenter.heroku.com/articles/oauth
+ */
+class Heroku extends AbstractService
+{
+    /**
+     * Defined scopes
+     * @link https://devcenter.heroku.com/articles/oauth#scopes
+     */
+    const SCOPE_GLOBAL          = 'global';
+    const SCOPE_IDENTITY        = 'identity';
+    const SCOPE_READ            = 'read';
+    const SCOPE_WRITE           = 'write';
+    const SCOPE_READ_PROTECTED  = 'read-protected';
+    const SCOPE_WRITE_PROTECTED = 'write-protected';
+
+    /**
+    * {@inheritdoc}
+    */
+    public function __construct(
+        CredentialsInterface $credentials,
+        ClientInterface $httpClient,
+        TokenStorageInterface $storage,
+        $scopes = array(),
+        UriInterface $baseApiUri = null
+    ) {
+        parent::__construct($credentials, $httpClient, $storage, $scopes, $baseApiUri);
+
+        if (null === $baseApiUri) {
+            $this->baseApiUri = new Uri('https://api.heroku.com/');
+        }
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAuthorizationEndpoint()
+    {
+        return new Uri('https://id.heroku.com/oauth/authorize');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    public function getAccessTokenEndpoint()
+    {
+        return new Uri('https://id.heroku.com/oauth/token');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getAuthorizationMethod()
+    {
+        return static::AUTHORIZATION_METHOD_HEADER_BEARER;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function parseAccessTokenResponse($responseBody)
+    {
+        $data = json_decode($responseBody, true);
+
+        if (null === $data || !is_array($data)) {
+            throw new TokenResponseException('Unable to parse response.');
+        } elseif (isset($data['error_description']) || isset($data['error'])) {
+            throw new TokenResponseException(
+                sprintf(
+                    'Error in retrieving token: "%s"',
+                    isset($data['error_description']) ? $data['error_description'] : $data['error']
+                )
+            );
+        }
+
+        $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;
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getExtraOAuthHeaders()
+    {
+        return array('Accept' => 'application/vnd.heroku+json; version=3');
+    }
+
+    /**
+     * {@inheritdoc}
+     */
+    protected function getExtraApiHeaders()
+    {
+        return array('Accept' => 'application/vnd.heroku+json; version=3', 'Content-Type' => 'application/json');
+    }
+}