CLOUD: Add GoogleDriveStorage

It has its own GoogleDriveTokenRefresher and knows how to do info().

This commit also contains JSON int -> long long int fix and
CurlJsonRequest '\n' -> ' ' fix.

1 files changed, 131 insertions, 0 deletions

diff --git a/backends/cloud/googledrive/googledrivestorage.h b/backends/cloud/googledrive/googledrivestorage.h
new file mode 100644
index 0000000000..8a82a54533
--- /dev/null
+++ b/backends/cloud/googledrive/googledrivestorage.h
@@ -0,0 +1,131 @@
+/* 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_GOOGLEDRIVE_GOOGLEDRIVESTORAGE_H
+#define BACKENDS_CLOUD_GOOGLEDRIVE_GOOGLEDRIVESTORAGE_H
+
+#include "backends/cloud/storage.h"
+#include "common/callback.h"
+#include "backends/networking/curl/curljsonrequest.h"
+
+namespace Cloud {
+namespace GoogleDrive {
+
+class GoogleDriveStorage: public Cloud::Storage {
+	static char *KEY, *SECRET;
+
+	static void loadKeyAndSecret();
+
+	Common::String _token, _refreshToken;
+
+	/** This private constructor is called from loadFromConfig(). */
+	GoogleDriveStorage(Common::String token, Common::String refreshToken);
+
+	/**
+	 * This private constructor is called from authThroughConsole() (phase 2).
+	 * It uses OAuth code flow to get tokens.
+	 */
+	GoogleDriveStorage(Common::String code);
+
+	void tokenRefreshed(BoolCallback callback, Networking::JsonResponse response);
+	void codeFlowComplete(BoolResponse response);
+
+	/** Constructs StorageInfo based on JSON response from cloud. */
+	void infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse json);
+
+	void printJson(Networking::JsonResponse response);
+	void fileDownloaded(BoolResponse response);
+	void printFiles(FileArrayResponse response);
+	void printBool(BoolResponse response);
+	void printFile(UploadResponse response);
+	void printInfo(StorageInfoResponse response);
+
+	void fileInfoCallback(Networking::NetworkReadStreamCallback outerCallback, Networking::JsonResponse response);
+public:	
+	virtual ~GoogleDriveStorage();
+
+	/**
+	 * Storage methods, which are used by CloudManager to save
+	 * storage in configuration file.
+	 */
+
+	/**
+	 * Save storage data using ConfMan.
+	 * @param keyPrefix all saved keys must start with this prefix.
+	 * @note every Storage must write keyPrefix + "type" key
+	 *       with common value (e.g. "Dropbox").
+	 */
+	virtual void saveConfig(Common::String keyPrefix);
+
+	/** Public Cloud API comes down there. */
+
+	/** Returns ListDirectoryStatus struct with list of files. */
+	virtual Networking::Request *listDirectory(Common::String path, ListDirectoryCallback callback, Networking::ErrorCallback errorCallback, bool recursive = false);
+
+	/** Returns UploadStatus struct with info about uploaded file. */
+	virtual Networking::Request *upload(Common::String path, Common::SeekableReadStream *contents, UploadCallback callback, Networking::ErrorCallback errorCallback);
+
+	/** Returns pointer to Networking::NetworkReadStream. */
+	virtual Networking::Request *streamFile(Common::String path, Networking::NetworkReadStreamCallback callback, Networking::ErrorCallback errorCallback);
+
+	/** Calls the callback when finished. */
+	virtual Networking::Request *remove(Common::String path, BoolCallback callback, Networking::ErrorCallback errorCallback) { return nullptr; } //TODO
+
+	/** Calls the callback when finished. */
+	virtual Networking::Request *createDirectory(Common::String path, BoolCallback callback, Networking::ErrorCallback errorCallback);
+
+	/** Returns the StorageInfo struct. */
+	virtual Networking::Request *info(StorageInfoCallback callback, Networking::ErrorCallback errorCallback);
+
+	/** Returns storage's saves directory path with the trailing slash. */
+	virtual Common::String savesDirectoryPath();
+
+	/**
+	 * Load token and user id from configs and return GoogleDriveStorage for those.	
+	 * @return pointer to the newly created GoogleDriveStorage or 0 if some problem occured.
+	 */
+	static GoogleDriveStorage *loadFromConfig(Common::String keyPrefix);
+
+	/**
+	 * Returns GoogleDrive auth link.
+	 */
+	static Common::String getAuthLink();
+
+	/**
+	 * Show message with GoogleDrive auth instructions. (Temporary)
+	 */
+	static void authThroughConsole();
+
+	/**
+	 * Gets new access_token. If <code> passed is "", refresh_token is used.
+	 * Use "" in order to refresh token and pass a callback, so you could
+	 * continue your work when new token is available.
+	 */
+	void getAccessToken(BoolCallback callback, Common::String code = "");
+
+	Common::String accessToken() { return _token; }
+};
+
+} // End of namespace GoogleDrive
+} // End of namespace Cloud
+
+#endif