Add Google authentication

vendor/OAuth/OAuth1/Service/ServiceInterface.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace OAuth\OAuth1\Service;
+
+use OAuth\Common\Consumer\CredentialsInterface;
+use OAuth\Common\Storage\TokenStorageInterface;
+use OAuth\Common\Token\TokenInterface;
+use OAuth\Common\Http\Client\ClientInterface;
+use OAuth\Common\Http\Uri\UriInterface;
+use OAuth\Common\Http\Exception\TokenResponseException;
+use OAuth\Common\Service\ServiceInterface as BaseServiceInterface;
+use OAuth\OAuth1\Signature\SignatureInterface;
+
+/**
+ * Defines the common methods across OAuth 1 services.
+ */
+interface ServiceInterface extends BaseServiceInterface
+{
+    /**
+     * Retrieves and stores/returns the OAuth1 request token obtained from the service.
+     *
+     * @return TokenInterface $token
+     *
+     * @throws TokenResponseException
+     */
+    public function requestRequestToken();
+
+    /**
+     * Retrieves and stores/returns the OAuth1 access token after a successful authorization.
+     *
+     * @param string $token       The request token from the callback.
+     * @param string $verifier
+     * @param string $tokenSecret
+     *
+     * @return TokenInterface $token
+     *
+     * @throws TokenResponseException
+     */
+    public function requestAccessToken($token, $verifier, $tokenSecret);
+
+    /**
+     * @return UriInterface
+     */
+    public function getRequestTokenEndpoint();
+}