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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/dropbox/dropboxstorage.h"
#include "backends/networking/curl/connectionmanager.h"
#include "backends/networking/curl/curljsonrequest.h"
#include "common/config-manager.h"
#include "common/debug.h"
#include "common/json.h"
#include <curl/curl.h>
namespace Cloud {
namespace Dropbox {
Common::String DropboxStorage::KEY; //can't use ConfMan there yet, loading it on instance creation/auth
Common::String DropboxStorage::SECRET; //TODO: hide these secrets somehow
static void saveAccessTokenCallback(void *ptr) {
Common::JSONValue *json = (Common::JSONValue *)ptr;
if (json) {
debug("saveAccessTokenCallback:");
debug("%s", json->stringify(true).c_str());
Common::JSONObject result = json->asObject();
if (!result.contains("access_token") || !result.contains("uid")) {
warning("Bad response, no token/uid passed");
} else {
ConfMan.set("current_storage_type", "Dropbox", "cloud");
ConfMan.set("current_storage_access_token", result.getVal("access_token")->asString(), "cloud");
ConfMan.set("current_storage_user_id", result.getVal("uid")->asString(), "cloud");
ConfMan.removeKey("dropbox_code", "cloud");
debug("Now please restart ScummVM to apply the changes.");
}
delete json;
} else {
debug("saveAccessTokenCallback: got NULL instead of JSON!");
}
}
DropboxStorage::DropboxStorage(Common::String accessToken, Common::String userId): _token(accessToken), _uid(userId) {
curl_global_init(CURL_GLOBAL_ALL);
}
DropboxStorage::~DropboxStorage() {
curl_global_cleanup();
}
void DropboxStorage::syncSaves(Common::BaseCallback<bool> *callback) {
//this is not the real syncSaves() implementation
info(new Common::Callback<DropboxStorage, StorageInfo>(this, &DropboxStorage::infoMethodCallback));
//that line meant the following:
//"please, do the info API request and, when it's finished, call the infoMethodCallback() of me"
}
void DropboxStorage::info(Common::BaseCallback<StorageInfo> *outerCallback) {
Common::BaseCallback<> *innerCallback = new Common::CallbackBridge<DropboxStorage, StorageInfo>(this, &DropboxStorage::infoInnerCallback, outerCallback);
Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(innerCallback, "https://api.dropboxapi.com/1/account/info");
request->addHeader("Authorization: Bearer " + _token);
ConnMan.addRequest(request);
//that callback bridge wraps the outerCallback (passed in arguments from user) into innerCallback
//so, when CurlJsonRequest is finished, it calls the innerCallback
//innerCallback (which is DropboxStorage::infoInnerCallback in this case) processes the void *ptr
//and then calls the outerCallback (which wants to receive StorageInfo, not void *)
}
void DropboxStorage::infoInnerCallback(Common::BaseCallback<StorageInfo> *outerCallback, void *ptr) {
Common::JSONValue *json = (Common::JSONValue *)ptr;
if (!json) {
warning("NULL passed instead of JSON");
delete outerCallback;
return;
}
if (outerCallback) {
(*outerCallback)(StorageInfo(json->stringify()));
delete outerCallback;
}
delete json;
}
void DropboxStorage::infoMethodCallback(StorageInfo storageInfo) {
debug("info: %s", storageInfo.info().c_str());
}
DropboxStorage *DropboxStorage::loadFromConfig() {
KEY = ConfMan.get("DROPBOX_KEY", "cloud");
SECRET = ConfMan.get("DROPBOX_SECRET", "cloud");
if (!ConfMan.hasKey("current_storage_access_token", "cloud")) {
warning("No access_token found");
return 0;
}
if (!ConfMan.hasKey("current_storage_user_id", "cloud")) {
warning("No user_id found");
return 0;
}
Common::String accessToken = ConfMan.get("current_storage_access_token", "cloud");
Common::String userId = ConfMan.get("current_storage_user_id", "cloud");
return new DropboxStorage(accessToken, userId);
}
Common::String DropboxStorage::getAuthLink() {
Common::String url = "https://www.dropbox.com/1/oauth2/authorize";
url += "?response_type=code";
url += "&redirect_uri=http://localhost:12345/"; //that's for copy-pasting
//url += "&redirect_uri=http%3A%2F%2Flocalhost%3A12345%2F"; //that's "http://localhost:12345/" for automatic opening
url += "&client_id=" + KEY;
return url;
}
void DropboxStorage::authThroughConsole() {
if (!ConfMan.hasKey("DROPBOX_KEY", "cloud") || !ConfMan.hasKey("DROPBOX_SECRET", "cloud")) {
warning("No Dropbox keys available, cannot do auth");
return;
}
KEY = ConfMan.get("DROPBOX_KEY", "cloud");
SECRET = ConfMan.get("DROPBOX_SECRET", "cloud");
if (ConfMan.hasKey("dropbox_code", "cloud")) {
//phase 2: get access_token using specified code
getAccessToken(ConfMan.get("dropbox_code", "cloud"));
return;
}
debug("Navigate to this URL and press \"Allow\":");
debug("%s\n", getAuthLink().c_str());
debug("Then, add dropbox_code key in [cloud] section of configuration file. You should copy the <code> value from URL and put it as value for that key.\n");
debug("Navigate to this URL to get more information on ScummVM's configuration files:");
debug("http://wiki.scummvm.org/index.php/User_Manual/Configuring_ScummVM#Using_the_configuration_file_to_configure_ScummVM\n");
}
void DropboxStorage::getAccessToken(Common::String code) {
Common::BaseCallback<> *callback = new Common::GlobalFunctionCallback(saveAccessTokenCallback);
Networking::CurlJsonRequest *request = new Networking::CurlJsonRequest(callback, "https://api.dropboxapi.com/1/oauth2/token");
request->addPostField("code=" + code);
request->addPostField("grant_type=authorization_code");
request->addPostField("client_id=" + KEY);
request->addPostField("client_secret=" + SECRET);
request->addPostField("&redirect_uri=http%3A%2F%2Flocalhost%3A12345%2F");
ConnMan.addRequest(request);
}
} //end of namespace Dropbox
} //end of namespace Cloud
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