Initial commit

backends/cloud/dropbox/dropboxstorage.cpp

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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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include "backends/cloud/dropbox/dropboxstorage.h"
+#include "backends/cloud/dropbox/dropboxcreatedirectoryrequest.h"
+#include "backends/cloud/dropbox/dropboxinforequest.h"
+#include "backends/cloud/dropbox/dropboxlistdirectoryrequest.h"
+#include "backends/cloud/dropbox/dropboxuploadrequest.h"
+#include "backends/cloud/cloudmanager.h"
+#include "backends/networking/http/connectionmanager.h"
+#include "backends/networking/http/httpjsonrequest.h"
+#include "common/config-manager.h"
+#include "common/debug.h"
+#include "common/formats/json.h"
+
+namespace Cloud {
+namespace Dropbox {
+
+#define DROPBOX_API_FILES_DOWNLOAD "https://content.dropboxapi.com/2/files/download"
+
+DropboxStorage::DropboxStorage(const Common::String &accessToken, const Common::String &refreshToken, bool enabled):
+	BaseStorage(accessToken, refreshToken, enabled) {}
+
+DropboxStorage::DropboxStorage(const Common::String &code, Networking::ErrorCallback cb): BaseStorage() {
+	getAccessToken(code, cb);
+}
+
+DropboxStorage::DropboxStorage(const Networking::JsonResponse &codeFlowJson, Networking::ErrorCallback cb) : BaseStorage() {
+	codeFlowComplete(cb, codeFlowJson);
+}
+
+DropboxStorage::~DropboxStorage() {}
+
+Common::String DropboxStorage::cloudProvider() { return "dropbox"; }
+
+uint32 DropboxStorage::storageIndex() { return kStorageDropboxId; }
+
+bool DropboxStorage::needsRefreshToken() { return true; }
+
+bool DropboxStorage::canReuseRefreshToken() { return true; }
+
+void DropboxStorage::saveConfig(const Common::String &keyPrefix) {
+	ConfMan.set(keyPrefix + "access_token", _token, ConfMan.kCloudDomain);
+	ConfMan.set(keyPrefix + "refresh_token", _refreshToken, ConfMan.kCloudDomain);
+	saveIsEnabledFlag(keyPrefix);
+}
+
+Common::String DropboxStorage::name() const {
+	return "Dropbox";
+}
+
+Networking::Request *DropboxStorage::listDirectory(const Common::String &path, ListDirectoryCallback outerCallback, Networking::ErrorCallback errorCallback, bool recursive) {
+	return addRequest(new DropboxListDirectoryRequest(this, path, outerCallback, errorCallback, recursive));
+}
+
+Networking::Request *DropboxStorage::upload(const Common::String &path, Common::SeekableReadStream *contents, UploadCallback callback, Networking::ErrorCallback errorCallback) {
+	return addRequest(new DropboxUploadRequest(this, path, contents, callback, errorCallback));
+}
+
+Networking::Request *DropboxStorage::streamFileById(const Common::String &path, Networking::NetworkReadStreamCallback callback, Networking::ErrorCallback errorCallback) {
+	Common::JSONObject jsonRequestParameters;
+	jsonRequestParameters.setVal("path", new Common::JSONValue(path));
+	Common::JSONValue value(jsonRequestParameters);
+
+	Networking::HttpRequest *request = new Networking::HttpRequest(nullptr, nullptr, DROPBOX_API_FILES_DOWNLOAD); //TODO: is it OK to pass no callbacks?
+	request->addHeader("Authorization: Bearer " + _token);
+	request->addHeader("Dropbox-API-Arg: " + Common::JSON::stringify(&value));
+	request->addHeader("Content-Type: "); //required to be empty (as we do POST, it's usually app/form-url-encoded)
+
+	Networking::NetworkReadStreamResponse response = request->execute();
+	if (callback)
+		(*callback)(response);
+	return request; // no leak here, response.request == request
+}
+
+Networking::Request *DropboxStorage::createDirectory(const Common::String &path, BoolCallback callback, Networking::ErrorCallback errorCallback) {
+	if (!errorCallback)
+		errorCallback = getErrorPrintingCallback();
+	return addRequest(new DropboxCreateDirectoryRequest(this, path, callback, errorCallback));
+}
+
+Networking::Request *DropboxStorage::info(StorageInfoCallback callback, Networking::ErrorCallback errorCallback) {
+	if (!errorCallback)
+		errorCallback = getErrorPrintingCallback();
+	return addRequest(new DropboxInfoRequest(this, callback, errorCallback));
+}
+
+Common::String DropboxStorage::savesDirectoryPath() { return "/saves/"; }
+
+DropboxStorage *DropboxStorage::loadFromConfig(const Common::String &keyPrefix) {
+	if (!ConfMan.hasKey(keyPrefix + "access_token", ConfMan.kCloudDomain)) {
+		warning("DropboxStorage: no access_token found");
+		return nullptr;
+	}
+
+	if (!ConfMan.hasKey(keyPrefix + "refresh_token", ConfMan.kCloudDomain)) {
+		warning("DropboxStorage: no refresh_token found");
+		return nullptr;
+	}
+
+	Common::String accessToken = ConfMan.get(keyPrefix + "access_token", ConfMan.kCloudDomain);
+	Common::String refreshToken = ConfMan.get(keyPrefix + "refresh_token", ConfMan.kCloudDomain);
+	return new DropboxStorage(accessToken, refreshToken, loadIsEnabledFlag(keyPrefix));
+}
+
+void DropboxStorage::removeFromConfig(const Common::String &keyPrefix) {
+	ConfMan.removeKey(keyPrefix + "access_token", ConfMan.kCloudDomain);
+	ConfMan.removeKey(keyPrefix + "refresh_token", ConfMan.kCloudDomain);
+	removeIsEnabledFlag(keyPrefix);
+}
+
+} // End of namespace Dropbox
+} // End of namespace Cloud