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backends/cloud/basestorage.cpp
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236
backends/cloud/basestorage.cpp
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/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include "backends/cloud/basestorage.h"
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#include "backends/cloud/cloudmanager.h"
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#include "backends/networking/http/connectionmanager.h"
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#include "backends/networking/http/httpjsonrequest.h"
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#include "common/config-manager.h"
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#include "common/debug.h"
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#include "common/formats/json.h"
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namespace Cloud {
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BaseStorage::BaseStorage() {}
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BaseStorage::BaseStorage(const Common::String &token, const Common::String &refreshToken, bool enabled):
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_token(token), _refreshToken(refreshToken) {
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_isEnabled = enabled;
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}
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BaseStorage::~BaseStorage() {}
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void BaseStorage::getAccessToken(const Common::String &code, Networking::ErrorCallback callback) {
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Networking::JsonCallback innerCallback = new Common::CallbackBridge<BaseStorage, const Networking::ErrorResponse &, const Networking::JsonResponse &>(this, &BaseStorage::codeFlowComplete, callback);
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Networking::ErrorCallback errorCallback = new Common::CallbackBridge<BaseStorage, const Networking::ErrorResponse &, const Networking::ErrorResponse &>(this, &BaseStorage::codeFlowFailed, callback);
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Common::String url = Common::String::format("https://cloud.scummvm.org/%s/token/%s", cloudProvider().c_str(), code.c_str());
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Networking::HttpJsonRequest *request = new Networking::HttpJsonRequest(innerCallback, errorCallback, url);
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addRequest(request);
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}
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void BaseStorage::codeFlowComplete(Networking::ErrorCallback callback, const Networking::JsonResponse &response) {
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bool success = true;
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Common::String callbackMessage = "OK";
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const Common::JSONValue *json = response.value;
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if (json == nullptr) {
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debug(9, "BaseStorage::codeFlowComplete: got NULL instead of JSON!");
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success = false;
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callbackMessage = "Incorrect JSON.";
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}
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if (success && !json->isObject()) {
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debug(9, "BaseStorage::codeFlowComplete: passed JSON is not an object!");
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success = false;
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callbackMessage = "Incorrect JSON.";
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}
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Common::JSONObject result;
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if (success) {
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result = json->asObject();
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if (!Networking::HttpJsonRequest::jsonContainsAttribute(result, "error", "BaseStorage::codeFlowComplete")) {
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warning("BaseStorage: bad response, no 'error' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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callbackMessage = "Incorrect JSON.";
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}
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}
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if (success && result.getVal("error")->asBool()) {
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Common::String errorMessage = "{error: true}, message is missing";
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if (Networking::HttpJsonRequest::jsonContainsString(result, "message", "BaseStorage::codeFlowComplete")) {
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errorMessage = result.getVal("message")->asString();
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}
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warning("BaseStorage: response says error occurred: %s", errorMessage.c_str());
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success = false;
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callbackMessage = errorMessage;
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}
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if (success && !Networking::HttpJsonRequest::jsonContainsObject(result, "oauth", "BaseStorage::codeFlowComplete")) {
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warning("BaseStorage: bad response, no 'oauth' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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callbackMessage = "Incorrect JSON.";
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}
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Common::JSONObject oauth;
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bool requiresRefreshToken = needsRefreshToken();
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if (success) {
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oauth = result.getVal("oauth")->asObject();
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if (!Networking::HttpJsonRequest::jsonContainsString(oauth, "access_token", "BaseStorage::codeFlowComplete") ||
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!Networking::HttpJsonRequest::jsonContainsString(oauth, "refresh_token", "BaseStorage::codeFlowComplete", !requiresRefreshToken)) {
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warning("BaseStorage: bad response, no 'access_token' or 'refresh_token' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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callbackMessage = "Incorrect JSON.";
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}
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}
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if (success) {
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_token = oauth.getVal("access_token")->asString();
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if (requiresRefreshToken) {
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_refreshToken = oauth.getVal("refresh_token")->asString();
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}
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CloudMan.replaceStorage(this, storageIndex());
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ConfMan.flushToDisk();
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}
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if (!success)
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CloudMan.removeStorage(this);
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if (callback)
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(*callback)(Networking::ErrorResponse(nullptr, false, !success, callbackMessage, -1));
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delete json;
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delete callback;
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}
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void BaseStorage::codeFlowFailed(Networking::ErrorCallback callback, const Networking::ErrorResponse &error) {
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debug(9, "BaseStorage: code flow failed (%s, %ld):", (error.failed ? "failed" : "interrupted"), error.httpResponseCode);
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debug(9, "%s", error.response.c_str());
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CloudMan.removeStorage(this);
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if (callback)
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(*callback)(error);
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delete callback;
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}
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void BaseStorage::refreshAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback) {
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if (_refreshToken == "") {
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warning("BaseStorage: no refresh token available to get new access token.");
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if (callback) (*callback)(BoolResponse(nullptr, false));
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return;
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}
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Networking::JsonCallback innerCallback = new Common::CallbackBridge<BaseStorage, const BoolResponse &, const Networking::JsonResponse &>(this, &BaseStorage::tokenRefreshed, callback);
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if (errorCallback == nullptr)
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errorCallback = getErrorPrintingCallback();
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Common::String url = Common::String::format("https://cloud.scummvm.org/%s/refresh", cloudProvider().c_str());
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Networking::HttpJsonRequest *request = new Networking::HttpJsonRequest(innerCallback, errorCallback, url);
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request->addHeader("X-ScummVM-Refresh-Token: " + _refreshToken);
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addRequest(request);
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}
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void BaseStorage::tokenRefreshed(BoolCallback callback, const Networking::JsonResponse &response) {
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bool success = true;
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const Common::JSONValue *json = response.value;
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if (json == nullptr) {
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debug(9, "BaseStorage::tokenRefreshed: got NULL instead of JSON!");
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success = false;
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}
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if (success && !json->isObject()) {
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debug(9, "BaseStorage::tokenRefreshed: passed JSON is not an object!");
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success = false;
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}
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Common::JSONObject result;
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if (success) {
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result = json->asObject();
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if (!Networking::HttpJsonRequest::jsonContainsAttribute(result, "error", "BaseStorage::tokenRefreshed")) {
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warning("BaseStorage: bad response, no 'error' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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}
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}
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if (success && result.getVal("error")->asBool()) {
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Common::String errorMessage = "{error: true}, message is missing";
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if (Networking::HttpJsonRequest::jsonContainsString(result, "message", "BaseStorage::tokenRefreshed")) {
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errorMessage = result.getVal("message")->asString();
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}
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warning("BaseStorage: response says error occurred: %s", errorMessage.c_str());
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success = false;
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}
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if (success && !Networking::HttpJsonRequest::jsonContainsObject(result, "oauth", "BaseStorage::tokenRefreshed")) {
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warning("BaseStorage: bad response, no 'oauth' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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}
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Common::JSONObject oauth;
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bool requiresRefreshToken = !canReuseRefreshToken();
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if (success) {
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oauth = result.getVal("oauth")->asObject();
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if (!Networking::HttpJsonRequest::jsonContainsString(oauth, "access_token", "BaseStorage::tokenRefreshed") ||
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!Networking::HttpJsonRequest::jsonContainsString(oauth, "refresh_token", "BaseStorage::tokenRefreshed", !requiresRefreshToken)) {
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warning("BaseStorage: bad response, no 'access_token' or 'refresh_token' attribute passed");
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debug(9, "%s", json->stringify(true).c_str());
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success = false;
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}
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}
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if (success) {
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debug(9, "%s", json->stringify(true).c_str()); // TODO: remove when done testing against cloud.scummvm.org
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_token = oauth.getVal("access_token")->asString();
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if (requiresRefreshToken) {
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_refreshToken = oauth.getVal("refresh_token")->asString();
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}
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CloudMan.save(); //ask CloudManager to save our new access_token and refresh_token
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}
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if (callback)
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(*callback)(BoolResponse(nullptr, success));
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delete json;
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delete callback;
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}
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void BaseStorage::saveIsEnabledFlag(const Common::String &keyPrefix) const {
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ConfMan.set(keyPrefix + "enabled", _isEnabled ? "true" : "false", ConfMan.kCloudDomain);
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}
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bool BaseStorage::loadIsEnabledFlag(const Common::String &keyPrefix) {
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if (!ConfMan.hasKey(keyPrefix + "enabled", ConfMan.kCloudDomain))
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return false;
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Common::String enabled = ConfMan.get(keyPrefix + "enabled", ConfMan.kCloudDomain);
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return (enabled == "true");
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}
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void BaseStorage::removeIsEnabledFlag(const Common::String &keyPrefix) {
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ConfMan.removeKey(keyPrefix + "enabled", ConfMan.kCloudDomain);
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}
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} // End of namespace Cloud
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