CLOUD: Add BaseStorage, which does auth via cloud.scummvm.org

1 files changed, 75 insertions, 0 deletions

diff --git a/backends/cloud/basestorage.h b/backends/cloud/basestorage.h
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+++ b/backends/cloud/basestorage.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef BACKENDS_CLOUD_BASE_STORAGE_H
+#define BACKENDS_CLOUD_BASE_STORAGE_H
+
+#include "backends/cloud/storage.h"
+#include "backends/networking/curl/curljsonrequest.h"
+
+namespace Cloud {
+
+class BaseStorage: public Cloud::Storage {
+protected:
+	/** Storage's access and refresh tokens. */
+	Common::String _token, _refreshToken;
+
+	/**
+	 * Gets token from cloud.scummvm.org using given code.
+	 * Base implementation for storages with common auth procedure.
+	 */
+	virtual void getAccessToken(Common::String code);
+
+	/**
+	 * Handles JSON response which should contain access token requested 
+	 * with getAccessToken().
+	 */
+	virtual void codeFlowComplete(Networking::JsonResponse response);
+
+	/**
+	 * Handles network errors occurred while getting access token requested
+	 * with getAccessToken().
+	 */
+	virtual void codeFlowFailed(Networking::ErrorResponse error);
+
+	/**
+	 * Return cloud provider name, used in cloud.scummvm.org endpoints.
+	 * @return cloud provider (for example, "dropbox").
+	 */
+	virtual Common::String cloudProvider() = 0;
+
+	/**
+	 * Return CloudManager's StorageID for this storage.
+	 * @return StorageID corresponding to this storage (for example,
+	 *         kStorageDropboxId).
+	 */
+	virtual uint32 storageIndex() = 0;
+
+public:
+	BaseStorage();
+	BaseStorage(Common::String token, Common::String refreshToken);
+	virtual ~BaseStorage();
+};
+
+} // End of namespace Cloud
+
+#endif