obs-websocket/src/protocol/OBSRemoteProtocol.cpp
2019-11-15 23:39:31 +01:00

86 lines
3.0 KiB
C++

/*
obs-websocket
Copyright (C) 2016-2019 Stéphane Lepin <stephane.lepin@gmail.com>
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, see <https://www.gnu.org/licenses/>
*/
#include "OBSRemoteProtocol.h"
#include "../WSRequestHandler.h"
std::string buildResponse(QString messageId, QString status, obs_data_t* fields = nullptr) {
obs_data_t* response = obs_data_create();
obs_data_set_string(response, "message-id", messageId.toUtf8().constData());
obs_data_set_string(response, "status", status.toUtf8().constData());
if (fields) {
obs_data_apply(response, fields);
}
std::string responseString = obs_data_get_json(response);
return responseString;
}
std::string successResponse(QString messageId, obs_data_t* fields = nullptr) {
return buildResponse(messageId, "ok", fields);
}
std::string errorResponse(QString messageId, QString errorMessage, obs_data_t* additionalFields = nullptr) {
OBSDataAutoRelease fields = obs_data_create();
obs_data_set_string(fields, "error", errorMessage.toUtf8().constData());
return buildResponse(messageId, "error", fields);
}
OBSRemoteProtocol::OBSRemoteProtocol(WSRequestHandler& requestHandler) :
_requestHandler(requestHandler)
{
}
std::string OBSRemoteProtocol::processMessage(std::string message)
{
std::string msgContainer(message);
const char* msg = msgContainer.c_str();
OBSDataAutoRelease data = obs_data_create_from_json(msg);
if (!data) {
blog(LOG_ERROR, "invalid JSON payload received for '%s'", msg);
return errorResponse(nullptr, "invalid JSON payload");
}
if (!obs_data_has_user_value(data, "request-type") || !obs_data_has_user_value(data, "message-id")) {
return errorResponse(nullptr, "missing request parameters");
}
QString methodName = obs_data_get_string(data, "request-type");
QString messageId = obs_data_get_string(data, "message-id");
OBSDataAutoRelease params = obs_data_create();
obs_data_apply(params, data);
obs_data_unset_user_value(params, "request-type");
obs_data_unset_user_value(params, "message-id");
RpcRequest request(messageId, methodName, params);
RpcResponse response = _requestHandler.processRequest(request);
OBSData additionalFields = response.additionalFields();
switch (response.status()) {
case RpcResponse::Status::Ok:
return successResponse(messageId, additionalFields);
case RpcResponse::Status::Error:
return errorResponse(messageId, response.errorMessage(), additionalFields);
}
return std::string();
}