obs-websocket/src/WSRequestHandler.cpp
Chris Angelico 3b7e9b4eba Create a command for opening a projector.
Depends on obs-studio#1910 for back end functionality.
2019-11-25 16:21:28 +11:00

290 lines
11 KiB
C++

/**
* obs-websocket
* Copyright (C) 2016-2017 Stéphane Lepin <stephane.lepin@gmail.com>
* Copyright (C) 2017 Mikhail Swift <https://github.com/mikhailswift>
*
* 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 <obs-data.h>
#include "Config.h"
#include "Utils.h"
#include "WSRequestHandler.h"
QHash<QString, HandlerResponse(*)(WSRequestHandler*)> WSRequestHandler::messageMap{
{ "GetVersion", WSRequestHandler::HandleGetVersion },
{ "GetAuthRequired", WSRequestHandler::HandleGetAuthRequired },
{ "Authenticate", WSRequestHandler::HandleAuthenticate },
{ "GetStats", WSRequestHandler::HandleGetStats },
{ "SetHeartbeat", WSRequestHandler::HandleSetHeartbeat },
{ "GetVideoInfo", WSRequestHandler::HandleGetVideoInfo },
{ "OpenProjector", WSRequestHandler::HandleOpenProjector },
{ "SetFilenameFormatting", WSRequestHandler::HandleSetFilenameFormatting },
{ "GetFilenameFormatting", WSRequestHandler::HandleGetFilenameFormatting },
{ "BroadcastCustomMessage", WSRequestHandler::HandleBroadcastCustomMessage },
{ "SetCurrentScene", WSRequestHandler::HandleSetCurrentScene },
{ "GetCurrentScene", WSRequestHandler::HandleGetCurrentScene },
{ "GetSceneList", WSRequestHandler::HandleGetSceneList },
{ "SetSourceRender", WSRequestHandler::HandleSetSceneItemRender }, // Retrocompat
{ "SetSceneItemRender", WSRequestHandler::HandleSetSceneItemRender },
{ "SetSceneItemPosition", WSRequestHandler::HandleSetSceneItemPosition },
{ "SetSceneItemTransform", WSRequestHandler::HandleSetSceneItemTransform },
{ "SetSceneItemCrop", WSRequestHandler::HandleSetSceneItemCrop },
{ "GetSceneItemProperties", WSRequestHandler::HandleGetSceneItemProperties },
{ "SetSceneItemProperties", WSRequestHandler::HandleSetSceneItemProperties },
{ "ResetSceneItem", WSRequestHandler::HandleResetSceneItem },
{ "DeleteSceneItem", WSRequestHandler::HandleDeleteSceneItem },
{ "DuplicateSceneItem", WSRequestHandler::HandleDuplicateSceneItem },
{ "ReorderSceneItems", WSRequestHandler::HandleReorderSceneItems },
{ "GetStreamingStatus", WSRequestHandler::HandleGetStreamingStatus },
{ "StartStopStreaming", WSRequestHandler::HandleStartStopStreaming },
{ "StartStopRecording", WSRequestHandler::HandleStartStopRecording },
{ "StartStreaming", WSRequestHandler::HandleStartStreaming },
{ "StopStreaming", WSRequestHandler::HandleStopStreaming },
{ "StartRecording", WSRequestHandler::HandleStartRecording },
{ "StopRecording", WSRequestHandler::HandleStopRecording },
{ "PauseRecording", WSRequestHandler::HandlePauseRecording },
{ "ResumeRecording", WSRequestHandler::HandleResumeRecording },
{ "StartStopReplayBuffer", WSRequestHandler::HandleStartStopReplayBuffer },
{ "StartReplayBuffer", WSRequestHandler::HandleStartReplayBuffer },
{ "StopReplayBuffer", WSRequestHandler::HandleStopReplayBuffer },
{ "SaveReplayBuffer", WSRequestHandler::HandleSaveReplayBuffer },
{ "SetRecordingFolder", WSRequestHandler::HandleSetRecordingFolder },
{ "GetRecordingFolder", WSRequestHandler::HandleGetRecordingFolder },
{ "GetTransitionList", WSRequestHandler::HandleGetTransitionList },
{ "GetCurrentTransition", WSRequestHandler::HandleGetCurrentTransition },
{ "SetCurrentTransition", WSRequestHandler::HandleSetCurrentTransition },
{ "SetTransitionDuration", WSRequestHandler::HandleSetTransitionDuration },
{ "GetTransitionDuration", WSRequestHandler::HandleGetTransitionDuration },
{ "SetVolume", WSRequestHandler::HandleSetVolume },
{ "GetVolume", WSRequestHandler::HandleGetVolume },
{ "ToggleMute", WSRequestHandler::HandleToggleMute },
{ "SetMute", WSRequestHandler::HandleSetMute },
{ "GetMute", WSRequestHandler::HandleGetMute },
{ "SetSyncOffset", WSRequestHandler::HandleSetSyncOffset },
{ "GetSyncOffset", WSRequestHandler::HandleGetSyncOffset },
{ "GetSpecialSources", WSRequestHandler::HandleGetSpecialSources },
{ "GetSourcesList", WSRequestHandler::HandleGetSourcesList },
{ "GetSourceTypesList", WSRequestHandler::HandleGetSourceTypesList },
{ "GetSourceSettings", WSRequestHandler::HandleGetSourceSettings },
{ "SetSourceSettings", WSRequestHandler::HandleSetSourceSettings },
{ "TakeSourceScreenshot", WSRequestHandler::HandleTakeSourceScreenshot },
{ "GetSourceFilters", WSRequestHandler::HandleGetSourceFilters },
{ "GetSourceFilterInfo", WSRequestHandler::HandleGetSourceFilterInfo },
{ "AddFilterToSource", WSRequestHandler::HandleAddFilterToSource },
{ "RemoveFilterFromSource", WSRequestHandler::HandleRemoveFilterFromSource },
{ "ReorderSourceFilter", WSRequestHandler::HandleReorderSourceFilter },
{ "MoveSourceFilter", WSRequestHandler::HandleMoveSourceFilter },
{ "SetSourceFilterSettings", WSRequestHandler::HandleSetSourceFilterSettings },
{ "SetSourceFilterVisibility", WSRequestHandler::HandleSetSourceFilterVisibility },
{ "SetCurrentSceneCollection", WSRequestHandler::HandleSetCurrentSceneCollection },
{ "GetCurrentSceneCollection", WSRequestHandler::HandleGetCurrentSceneCollection },
{ "ListSceneCollections", WSRequestHandler::HandleListSceneCollections },
{ "SetCurrentProfile", WSRequestHandler::HandleSetCurrentProfile },
{ "GetCurrentProfile", WSRequestHandler::HandleGetCurrentProfile },
{ "ListProfiles", WSRequestHandler::HandleListProfiles },
{ "SetStreamSettings", WSRequestHandler::HandleSetStreamSettings },
{ "GetStreamSettings", WSRequestHandler::HandleGetStreamSettings },
{ "SaveStreamSettings", WSRequestHandler::HandleSaveStreamSettings },
#if BUILD_CAPTIONS
{ "SendCaptions", WSRequestHandler::HandleSendCaptions },
#endif
{ "GetStudioModeStatus", WSRequestHandler::HandleGetStudioModeStatus },
{ "GetPreviewScene", WSRequestHandler::HandleGetPreviewScene },
{ "SetPreviewScene", WSRequestHandler::HandleSetPreviewScene },
{ "TransitionToProgram", WSRequestHandler::HandleTransitionToProgram },
{ "EnableStudioMode", WSRequestHandler::HandleEnableStudioMode },
{ "DisableStudioMode", WSRequestHandler::HandleDisableStudioMode },
{ "ToggleStudioMode", WSRequestHandler::HandleToggleStudioMode },
{ "SetTextGDIPlusProperties", WSRequestHandler::HandleSetTextGDIPlusProperties },
{ "GetTextGDIPlusProperties", WSRequestHandler::HandleGetTextGDIPlusProperties },
{ "SetTextFreetype2Properties", WSRequestHandler::HandleSetTextFreetype2Properties },
{ "GetTextFreetype2Properties", WSRequestHandler::HandleGetTextFreetype2Properties },
{ "GetBrowserSourceProperties", WSRequestHandler::HandleGetBrowserSourceProperties },
{ "SetBrowserSourceProperties", WSRequestHandler::HandleSetBrowserSourceProperties },
{ "ListOutputs", WSRequestHandler::HandleListOutputs },
{ "GetOutputInfo", WSRequestHandler::HandleGetOutputInfo },
{ "StartOutput", WSRequestHandler::HandleStartOutput },
{ "StopOutput", WSRequestHandler::HandleStopOutput }
};
QSet<QString> WSRequestHandler::authNotRequired {
"GetVersion",
"GetAuthRequired",
"Authenticate"
};
WSRequestHandler::WSRequestHandler(ConnectionProperties& connProperties) :
_messageId(0),
_requestType(""),
data(nullptr),
_connProperties(connProperties)
{
}
std::string WSRequestHandler::processIncomingMessage(std::string& textMessage) {
if (GetConfig()->DebugEnabled) {
blog(LOG_INFO, "Request >> '%s'", textMessage.c_str());
}
OBSDataAutoRelease responseData = processRequest(textMessage);
std::string response = obs_data_get_json(responseData);
if (GetConfig()->DebugEnabled) {
blog(LOG_INFO, "Response << '%s'", response.c_str());
}
return response;
}
HandlerResponse WSRequestHandler::processRequest(std::string& textMessage){
std::string msgContainer(textMessage);
const char* msg = msgContainer.c_str();
data = obs_data_create_from_json(msg);
if (!data) {
blog(LOG_ERROR, "invalid JSON payload received for '%s'", msg);
return SendErrorResponse("invalid JSON payload");
}
if (!hasField("request-type") || !hasField("message-id")) {
return SendErrorResponse("missing request parameters");
}
_requestType = obs_data_get_string(data, "request-type");
_messageId = obs_data_get_string(data, "message-id");
if (GetConfig()->AuthRequired
&& (!authNotRequired.contains(_requestType))
&& (!_connProperties.isAuthenticated()))
{
return SendErrorResponse("Not Authenticated");
}
HandlerResponse (*handlerFunc)(WSRequestHandler*) = (messageMap[_requestType]);
if (!handlerFunc) {
return SendErrorResponse("invalid request type");
}
return handlerFunc(this);
}
WSRequestHandler::~WSRequestHandler() {
}
HandlerResponse WSRequestHandler::SendOKResponse(obs_data_t* additionalFields) {
return SendResponse("ok", additionalFields);
}
HandlerResponse WSRequestHandler::SendErrorResponse(QString errorMessage) {
OBSDataAutoRelease fields = obs_data_create();
obs_data_set_string(fields, "error", errorMessage.toUtf8().constData());
return SendResponse("error", fields);
}
HandlerResponse WSRequestHandler::SendErrorResponse(obs_data_t* additionalFields) {
return SendResponse("error", additionalFields);
}
HandlerResponse WSRequestHandler::SendResponse(const char* status, obs_data_t* fields) {
obs_data_t* response = obs_data_create();
obs_data_set_string(response, "message-id", _messageId);
obs_data_set_string(response, "status", status);
if (fields) {
obs_data_apply(response, fields);
}
return response;
}
bool WSRequestHandler::hasField(QString name, obs_data_type expectedFieldType, obs_data_number_type expectedNumberType) {
if (!data || name.isEmpty() || name.isNull()) {
return false;
}
OBSDataItemAutoRelease dataItem = obs_data_item_byname(data, name.toUtf8());
if (!dataItem) {
return false;
}
if (expectedFieldType != OBS_DATA_NULL) {
obs_data_type fieldType = obs_data_item_gettype(dataItem);
if (fieldType != expectedFieldType) {
return false;
}
if (fieldType == OBS_DATA_NUMBER && expectedNumberType != OBS_DATA_NUM_INVALID) {
obs_data_number_type numberType = obs_data_item_numtype(dataItem);
if (numberType != expectedNumberType) {
return false;
}
}
}
return true;
}
bool WSRequestHandler::hasBool(QString fieldName) {
return this->hasField(fieldName, OBS_DATA_BOOLEAN);
}
bool WSRequestHandler::hasString(QString fieldName) {
return this->hasField(fieldName, OBS_DATA_STRING);
}
bool WSRequestHandler::hasNumber(QString fieldName, obs_data_number_type expectedNumberType) {
return this->hasField(fieldName, OBS_DATA_NUMBER, expectedNumberType);
}
bool WSRequestHandler::hasInteger(QString fieldName) {
return this->hasNumber(fieldName, OBS_DATA_NUM_INT);
}
bool WSRequestHandler::hasDouble(QString fieldName) {
return this->hasNumber(fieldName, OBS_DATA_NUM_DOUBLE);
}
bool WSRequestHandler::hasArray(QString fieldName) {
return this->hasField(fieldName, OBS_DATA_ARRAY);
}
bool WSRequestHandler::hasObject(QString fieldName) {
return this->hasField(fieldName, OBS_DATA_OBJECT);
}