Introduce refresh and revoke interfaces for OAuth2 providers

src/Contracts/OAuth2/RefreshTokensInterface.php

@@ -0,0 +1,21 @@
+<?php
+
+namespace SocialiteProviders\Manager\Contracts\OAuth2;
+
+use Laravel\Socialite\Two\ProviderInterface as SocialiteOauth2ProviderInterface;
+use Psr\Http\Message\ResponseInterface;
+
+interface RefreshTokensInterface extends SocialiteOauth2ProviderInterface
+{
+    /**
+     * @param string $refreshToken
+     * @return ResponseInterface
+     */
+    public function refreshToken(string $refreshToken) : ResponseInterface;
+
+    /**
+     * @param string $refreshToken
+     * @return array
+     */
+    public function getRefreshTokenResponse(string $refreshToken) : array;
+}

src/Contracts/OAuth2/RevokeTokensInterface.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace SocialiteProviders\Manager\Contracts\OAuth2;
+
+use Laravel\Socialite\Two\ProviderInterface as SocialiteOauth2ProviderInterface;
+use Psr\Http\Message\ResponseInterface;
+
+interface RevokeTokensInterface extends SocialiteOauth2ProviderInterface
+{
+    /**
+     * @param string $token
+     * @param string $hint optional hint, either 'access_token' or 'refresh_token'
+     * @return ResponseInterface
+     */
+    public function revokeToken(string $token, string $hint = '') : ResponseInterface;
+
+    /**
+     * @param string $token
+     * @param string $hint optional hint, either 'access_token' or 'refresh_token'
+     * @return array
+     */
+    public function getRevokeTokenResponse(string $token, string $hint = '') : array;
+}