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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.
*
*/
#define FORBIDDEN_SYMBOL_ALLOW_ALL
#include "backends/cloud/googledrive/googledrivestorage.h"
#include "backends/cloud/cloudmanager.h"
#include "backends/cloud/googledrive/googledrivetokenrefresher.h"
#include "backends/cloud/googledrive/googledrivelistdirectorybyidrequest.h"
#include "backends/cloud/googledrive/googledriveuploadrequest.h"
#include "backends/networking/curl/connectionmanager.h"
#include "backends/networking/curl/curljsonrequest.h"
#include "backends/networking/curl/networkreadstream.h"
#include "common/config-manager.h"
#include "common/debug.h"
#include "common/json.h"
#include <curl/curl.h>
namespace Cloud {
namespace GoogleDrive {
#define GOOGLEDRIVE_OAUTH2_TOKEN "https://accounts.google.com/o/oauth2/token"
#define GOOGLEDRIVE_API_FILES_ALT_MEDIA "https://www.googleapis.com/drive/v3/files/%s?alt=media"
#define GOOGLEDRIVE_API_FILES "https://www.googleapis.com/drive/v3/files"
#define GOOGLEDRIVE_API_ABOUT "https://www.googleapis.com/drive/v3/about?fields=storageQuota,user"
char *GoogleDriveStorage::KEY = nullptr; //can't use CloudConfig there yet, loading it on instance creation/auth
char *GoogleDriveStorage::SECRET = nullptr; //TODO: hide these secrets somehow
void GoogleDriveStorage::loadKeyAndSecret() {
Common::String k = ConfMan.get("GOOGLE_DRIVE_KEY", ConfMan.kCloudDomain);
KEY = new char[k.size() + 1];
memcpy(KEY, k.c_str(), k.size());
KEY[k.size()] = 0;
k = ConfMan.get("GOOGLE_DRIVE_SECRET", ConfMan.kCloudDomain);
SECRET = new char[k.size() + 1];
memcpy(SECRET, k.c_str(), k.size());
SECRET[k.size()] = 0;
}
GoogleDriveStorage::GoogleDriveStorage(Common::String accessToken, Common::String refreshToken):
_token(accessToken), _refreshToken(refreshToken) {}
GoogleDriveStorage::GoogleDriveStorage(Common::String code) {
getAccessToken(
new Common::Callback<GoogleDriveStorage, BoolResponse>(this, &GoogleDriveStorage::codeFlowComplete),
new Common::Callback<GoogleDriveStorage, Networking::ErrorResponse>(this, &GoogleDriveStorage::codeFlowFailed),
code
);
}
GoogleDriveStorage::~GoogleDriveStorage() {}
void GoogleDriveStorage::getAccessToken(BoolCallback callback, Networking::ErrorCallback errorCallback, Common::String code) {
if (!KEY || !SECRET) loadKeyAndSecret();
bool codeFlow = (code != "");
if (!codeFlow && _refreshToken == "") {
warning("GoogleDriveStorage: no refresh token available to get new access token.");
if (callback)
(*callback)(BoolResponse(nullptr, false));
return;
}
Networking::JsonCallback innerCallback = new Common::CallbackBridge<GoogleDriveStorage, BoolResponse, Networking::JsonResponse>(this, &GoogleDriveStorage::tokenRefreshed, callback);
if (errorCallback == nullptr)
errorCallback = getErrorPrintingCallback();
Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, errorCallback, GOOGLEDRIVE_OAUTH2_TOKEN); //TODO
if (codeFlow) {
request->addPostField("code=" + code);
request->addPostField("grant_type=authorization_code");
} else {
request->addPostField("refresh_token=" + _refreshToken);
request->addPostField("grant_type=refresh_token");
}
request->addPostField("client_id=" + Common::String(KEY));
request->addPostField("client_secret=" + Common::String(SECRET));
if (Cloud::CloudManager::couldUseLocalServer()) {
request->addPostField("&redirect_uri=http%3A%2F%2Flocalhost%3A12345");
} else {
request->addPostField("&redirect_uri=https%3A%2F%2Fwww.scummvm.org/c/code");
}
addRequest(request);
}
void GoogleDriveStorage::tokenRefreshed(BoolCallback callback, Networking::JsonResponse response) {
Common::JSONValue *json = response.value;
if (!json) {
warning("GoogleDriveStorage: got NULL instead of JSON");
if (callback)
(*callback)(BoolResponse(nullptr, false));
return;
}
Common::JSONObject result = json->asObject();
if (!result.contains("access_token")) {
warning("GoogleDriveStorage: bad response, no token passed");
debug(9, "%s", json->stringify().c_str());
if (callback)
(*callback)(BoolResponse(nullptr, false));
} else {
_token = result.getVal("access_token")->asString();
if (!result.contains("refresh_token"))
warning("GoogleDriveStorage: no refresh_token passed");
else
_refreshToken = result.getVal("refresh_token")->asString();
CloudMan.save(); //ask CloudManager to save our new refreshToken
if (callback)
(*callback)(BoolResponse(nullptr, true));
}
delete json;
}
void GoogleDriveStorage::codeFlowComplete(BoolResponse response) {
if (!response.value) {
warning("GoogleDriveStorage: failed to get access token through code flow");
CloudMan.removeStorage(this);
return;
}
ConfMan.removeKey("googledrive_code", ConfMan.kCloudDomain);
CloudMan.replaceStorage(this, kStorageGoogleDriveId);
ConfMan.flushToDisk();
}
void GoogleDriveStorage::codeFlowFailed(Networking::ErrorResponse error) {
debug(9, "GoogleDriveStorage: code flow failed (%s, %ld):", (error.failed ? "failed" : "interrupted"), error.httpResponseCode);
debug(9, "%s", error.response.c_str());
CloudMan.removeStorage(this);
}
void GoogleDriveStorage::saveConfig(Common::String keyPrefix) {
ConfMan.set(keyPrefix + "access_token", _token, ConfMan.kCloudDomain);
ConfMan.set(keyPrefix + "refresh_token", _refreshToken, ConfMan.kCloudDomain);
}
Common::String GoogleDriveStorage::name() const {
return "Google Drive";
}
void GoogleDriveStorage::infoInnerCallback(StorageInfoCallback outerCallback, Networking::JsonResponse response) {
Common::JSONValue *json = response.value;
if (!json) {
warning("GoogleDriveStorage: NULL passed instead of JSON");
delete outerCallback;
return;
}
Common::JSONObject info = json->asObject();
Common::String uid, name, email;
uint64 quotaUsed = 0, quotaAllocated = 0;
if (info.contains("user") && info.getVal("user")->isObject()) {
//"me":true, "kind":"drive#user","photoLink": "",
//"displayName":"Alexander Tkachev","emailAddress":"alexander@tkachov.ru","permissionId":""
Common::JSONObject user = info.getVal("user")->asObject();
uid = user.getVal("permissionId")->asString(); //not sure it's user's id, but who cares anyway?
name = user.getVal("displayName")->asString();
email = user.getVal("emailAddress")->asString();
}
if (info.contains("storageQuota") && info.getVal("storageQuota")->isObject()) {
//"usageInDrive":"6332462","limit":"18253611008","usage":"6332462","usageInDriveTrash":"0"
Common::JSONObject storageQuota = info.getVal("storageQuota")->asObject();
Common::String usage = storageQuota.getVal("usage")->asString();
Common::String limit = storageQuota.getVal("limit")->asString();
quotaUsed = usage.asUint64();
quotaAllocated = limit.asUint64();
}
CloudMan.setStorageUsername(kStorageGoogleDriveId, email);
if (outerCallback) {
(*outerCallback)(StorageInfoResponse(nullptr, StorageInfo(uid, name, email, quotaUsed, quotaAllocated)));
delete outerCallback;
}
delete json;
}
void GoogleDriveStorage::createDirectoryInnerCallback(BoolCallback outerCallback, Networking::JsonResponse response) {
Common::JSONValue *json = response.value;
if (!json) {
warning("GoogleDriveStorage: NULL passed instead of JSON");
delete outerCallback;
return;
}
if (outerCallback) {
Common::JSONObject info = json->asObject();
(*outerCallback)(BoolResponse(nullptr, info.contains("id")));
delete outerCallback;
}
delete json;
}
Networking::Request *GoogleDriveStorage::listDirectoryById(Common::String id, ListDirectoryCallback callback, Networking::ErrorCallback errorCallback) {
if (!errorCallback)
errorCallback = getErrorPrintingCallback();
if (!callback)
callback = new Common::Callback<GoogleDriveStorage, FileArrayResponse>(this, &GoogleDriveStorage::printFiles);
return addRequest(new GoogleDriveListDirectoryByIdRequest(this, id, callback, errorCallback));
}
Networking::Request *GoogleDriveStorage::upload(Common::String path, Common::SeekableReadStream *contents, UploadCallback callback, Networking::ErrorCallback errorCallback) {
return addRequest(new GoogleDriveUploadRequest(this, path, contents, callback, errorCallback));
}
Networking::Request *GoogleDriveStorage::streamFileById(Common::String id, Networking::NetworkReadStreamCallback callback, Networking::ErrorCallback errorCallback) {
if (callback) {
Common::String url = Common::String::format(GOOGLEDRIVE_API_FILES_ALT_MEDIA, ConnMan.urlEncode(id).c_str());
Common::String header = "Authorization: Bearer " + _token;
curl_slist *headersList = curl_slist_append(nullptr, header.c_str());
Networking::NetworkReadStream *stream = new Networking::NetworkReadStream(url.c_str(), headersList, "");
(*callback)(Networking::NetworkReadStreamResponse(nullptr, stream));
}
delete callback;
delete errorCallback;
return nullptr;
}
void GoogleDriveStorage::printInfo(StorageInfoResponse response) {
debug(9, "\nGoogleDriveStorage: user info:");
debug(9, "\tname: %s", response.value.name().c_str());
debug(9, "\temail: %s", response.value.email().c_str());
debug(9, "\tdisk usage: %lu/%lu", response.value.used(), response.value.available());
}
Networking::Request *GoogleDriveStorage::createDirectoryWithParentId(Common::String parentId, Common::String name, BoolCallback callback, Networking::ErrorCallback errorCallback) {
if (!errorCallback)
errorCallback = getErrorPrintingCallback();
Common::String url = GOOGLEDRIVE_API_FILES;
Networking::JsonCallback innerCallback = new Common::CallbackBridge<GoogleDriveStorage, BoolResponse, Networking::JsonResponse>(this, &GoogleDriveStorage::createDirectoryInnerCallback, callback);
Networking::CurlJsonRequest *request = new GoogleDriveTokenRefresher(this, innerCallback, errorCallback, url.c_str());
request->addHeader("Authorization: Bearer " + accessToken());
request->addHeader("Content-Type: application/json");
Common::JSONArray parentsArray;
parentsArray.push_back(new Common::JSONValue(parentId));
Common::JSONObject jsonRequestParameters;
jsonRequestParameters.setVal("mimeType", new Common::JSONValue("application/vnd.google-apps.folder"));
jsonRequestParameters.setVal("name", new Common::JSONValue(name));
jsonRequestParameters.setVal("parents", new Common::JSONValue(parentsArray));
Common::JSONValue value(jsonRequestParameters);
request->addPostField(Common::JSON::stringify(&value));
return addRequest(request);
}
Networking::Request *GoogleDriveStorage::info(StorageInfoCallback callback, Networking::ErrorCallback errorCallback) {
if (!callback)
callback = new Common::Callback<GoogleDriveStorage, StorageInfoResponse>(this, &GoogleDriveStorage::printInfo);
Networking::JsonCallback innerCallback = new Common::CallbackBridge<GoogleDriveStorage, StorageInfoResponse, Networking::JsonResponse>(this, &GoogleDriveStorage::infoInnerCallback, callback);
Networking::CurlJsonRequest *request = new GoogleDriveTokenRefresher(this, innerCallback, errorCallback, GOOGLEDRIVE_API_ABOUT);
request->addHeader("Authorization: Bearer " + _token);
return addRequest(request);
}
Common::String GoogleDriveStorage::savesDirectoryPath() { return "scummvm/saves/"; }
GoogleDriveStorage *GoogleDriveStorage::loadFromConfig(Common::String keyPrefix) {
loadKeyAndSecret();
if (!ConfMan.hasKey(keyPrefix + "access_token", ConfMan.kCloudDomain)) {
warning("GoogleDriveStorage: no access_token found");
return nullptr;
}
if (!ConfMan.hasKey(keyPrefix + "refresh_token", ConfMan.kCloudDomain)) {
warning("GoogleDriveStorage: 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 GoogleDriveStorage(accessToken, refreshToken);
}
Common::String GoogleDriveStorage::getRootDirectoryId() {
return "root";
}
} // End of namespace GoogleDrive
} // End of namespace Cloud
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