zeus/jus/GateWayClient.cpp

373 lines
12 KiB
C++

/** @file
* @author Edouard DUPIN
* @copyright 2016, Edouard DUPIN, all right reserved
* @license APACHE v2.0 (see license file)
*/
#include <jus/debug.h>
#include <jus/GateWayClient.h>
#include <ejson/ejson.h>
#include <jus/GateWay.h>
#include <unistd.h>
#include <jus/AbstractFunction.h>
jus::GateWayClient::GateWayClient(enet::Tcp _connection, jus::GateWay* _gatewayInterface) :
m_state(jus::GateWayClient::state::unconnect),
m_gatewayInterface(_gatewayInterface),
m_interfaceClient(std::move(_connection)),
m_transactionLocalId(-1) {
JUS_INFO("----------------");
JUS_INFO("-- NEW Client --");
JUS_INFO("----------------");
}
jus::GateWayClient::~GateWayClient() {
JUS_TODO("Call All unlink ...");
stop();
JUS_INFO("-------------------");
JUS_INFO("-- DELETE Client --");
JUS_INFO("-------------------");
}
void jus::GateWayClient::start(uint64_t _uid, uint64_t _uid2) {
m_uid = _uid;
m_uid2 = _uid2;
m_state = jus::GateWayClient::state::connect;
m_interfaceClient.connect(this, &jus::GateWayClient::onClientData);
m_interfaceClient.connect(true);
m_interfaceClient.setInterfaceName("cli-" + etk::to_string(m_uid));
}
void jus::GateWayClient::stop() {
for (auto &it : m_listConnectedService) {
if (it == nullptr) {
continue;
}
ejson::Object linkService;
linkService.add("event", ejson::String("delete"));
it->SendData(m_uid, linkService);
}
if (m_userService != nullptr) {
ejson::Object linkService;
linkService.add("event", ejson::String("delete"));
m_userService->SendData(m_uid2, linkService);
m_userService = nullptr;
}
m_listConnectedService.clear();
m_interfaceClient.disconnect();
}
bool jus::GateWayClient::isAlive() {
return m_interfaceClient.isActive();
}
void jus::GateWayClient::protocolError(const std::string& _errorHelp) {
ejson::Object answer;
answer.add("error", ejson::String("PROTOCOL-ERROR"));
answer.add("error-help", ejson::String(_errorHelp));
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
m_state = jus::GateWayClient::state::disconnect;
m_interfaceClient.disconnect(true);
}
void jus::GateWayClient::returnBool(int32_t _transactionId, bool _value) {
ejson::Object answer;
answer.add("id", ejson::Number(_transactionId));
answer.add("return", ejson::Boolean(_value));
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
}
void jus::GateWayClient::onClientData(std::string _value) {
JUS_DEBUG("On data: " << _value);
ejson::Object data(_value);
int32_t transactionId = data["id"].toNumber().get();
if (transactionId == 0) {
JUS_ERROR("Protocol error ==>missing id");
protocolError("missing parameter: 'id'");
return;
}
switch (m_state) {
case jus::GateWayClient::state::disconnect:
case jus::GateWayClient::state::unconnect:
{
JUS_ERROR("Must never appear");
protocolError("Gateway internal error");
return;
}
case jus::GateWayClient::state::connect:
{
if (m_userConnectionName != "") {
protocolError("Gateway internal error 2");
return;
}
std::string call = data["call"].toString().get();
if (call == "connectToUser") {
m_userConnectionName = data["param"].toArray()[0].toString().get();
if (m_userConnectionName == "") {
protocolError("Call connectToUser with no parameter 'user'");
} else {
JUS_WARNING("[" << m_uid << "] Set client connect to user : '" << m_userConnectionName << "'");
m_userService = m_gatewayInterface->get("system-user");
if (m_userService == nullptr) {
protocolError("Gateway internal error 'No user interface'");
} else {
ejson::Object linkService;
linkService.add("event", ejson::String("new"));
linkService.add("user", ejson::String(m_userConnectionName));
m_userService->SendData(m_uid2, linkService);
m_state = jus::GateWayClient::state::userIdentify;
returnBool(transactionId, true);
}
}
return;
}
JUS_WARNING("[" << m_uid << "] Client must send conection to user name ...");
protocolError("Missing call of connectToUser");
return;
}
case jus::GateWayClient::state::userIdentify:
{
std::string call = data["call"].toString().get();
if (call == "identify") {
std::string clientName = data["param"].toArray()[0].toString().get();
std::string clientTocken = data["param"].toArray()[1].toString().get();
ejson::Object gwCall;
int32_t tmpID = m_transactionLocalId--;
gwCall.add("id", ejson::Number(tmpID));
gwCall.add("call", ejson::String("checkTocken"));
ejson::Array gwParam;
gwParam.add(ejson::String(clientName));
gwParam.add(ejson::String(clientTocken));
gwCall.add("param", gwParam);
{
std::unique_lock<std::mutex> lock(m_mutex);
m_actions.push_back(std::make_pair(tmpID,
[=](ejson::Object& _data) {
JUS_ERROR(" ==> Tocken ckeck return ...");
if (_data["return"].toBoolean().get() == true) {
m_clientName = clientName;
m_clientgroups.clear();
ejson::Object gwCall;
int32_t tmpID = m_transactionLocalId--;
gwCall.add("id", ejson::Number(tmpID));
gwCall.add("call", ejson::String("getGroups"));
ejson::Array gwParam;
gwParam.add(ejson::String(clientName));
gwCall.add("param", gwParam);
{
std::unique_lock<std::mutex> lock(m_mutex);
m_actions.push_back(std::make_pair(tmpID,
[=](ejson::Object& _data) {
JUS_ERROR(" ==> group get return ...");
if (_data["return"].isArray() == false) {
returnBool(transactionId, false);
} else {
m_clientgroups = convertJsonTo<std::vector<std::string>>(_data["return"]);
returnBool(transactionId, true);
}
}));
}
if (m_userService != nullptr) {
m_userService->SendData(m_uid2, gwCall);
} else {
protocolError("gateWay internal error 3");
}
} else {
returnBool(transactionId, false);
}
}));
}
if (m_userService != nullptr) {
m_userService->SendData(m_uid2, gwCall);
} else {
protocolError("gateWay internal error 3");
}
return;
}
if (call == "auth") {
std::string password = data["param"].toArray()[0].toString().get();
protocolError("Not implemented");
return;
}
if (call == "anonymous") {
protocolError("Not implemented");
return;
}
protocolError("Client must call: identify/auth/anonymous");
return;
}
break;
case jus::GateWayClient::state::clientIdentify:
{
std::string service = data["service"].toString().get();
// Thsi is 2 default service for the cient interface that manage the authorisation of view:
if (service == "") {
std::string call = data["call"].toString().get();
ejson::Object answer;
//answer.add("from-service", ejson::String(""));
answer.add("id", data["id"]);
if (call == "getServiceCount") {
// TODO : Do it better:
answer.add("return", ejson::Number(2));
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
return;
}
if (call == "getServiceList") {
ejson::Array listService;
listService.add(ejson::String("ServiceManager/v0.1.0"));
listService.add(ejson::String("getServiceInformation/v0.1.0"));
answer.add("return", listService);
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
return;
}
if (call == "link") {
// first param:
std::string serviceName = data["param"].toArray()[0].toString().get();
// Check if service already link:
auto it = m_listConnectedService.begin();
while (it != m_listConnectedService.end()) {
if (*it == nullptr) {
++it;
continue;
}
if ((*it)->getName() != service) {
++it;
continue;
}
break;
}
if (it == m_listConnectedService.end()) {
// TODO : check if we have authorisation to connect service
ememory::SharedPtr<jus::GateWayService> srv = m_gatewayInterface->get(serviceName);
if (srv != nullptr) {
ejson::Object linkService;
linkService.add("event", ejson::String("new"));
linkService.add("user", ejson::String(m_userConnectionName));
linkService.add("client", ejson::String(m_clientName));
linkService.add("groups", convertToJson(m_clientgroups));
srv->SendData(m_uid, linkService);
m_listConnectedService.push_back(srv);
answer.add("return", ejson::Boolean(true));
} else {
answer.add("return", ejson::Boolean(false));
}
} else {
// TODO : Service already connected;
answer.add("return", ejson::Boolean(false));
}
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
return;
}
if (call == "unlink") {
// first param:
std::string serviceName = data["param"].toArray()[0].toString().get();
// Check if service already link:
auto it = m_listConnectedService.begin();
while (it != m_listConnectedService.end()) {
if (*it == nullptr) {
++it;
continue;
}
if ((*it)->getName() != service) {
++it;
continue;
}
break;
}
if (it == m_listConnectedService.end()) {
answer.add("return", ejson::Boolean(false));
} else {
ejson::Object linkService;
linkService.add("event", ejson::String("delete"));
(*it)->SendData(m_uid, linkService);
m_listConnectedService.erase(it);
answer.add("return", ejson::Boolean(true));
}
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
return;
}
JUS_ERROR("Function does not exist ... '" << call << "'");
answer.add("error", ejson::String("CALL-UNEXISTING"));
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
return;
}
auto it = m_listConnectedService.begin();
while (it != m_listConnectedService.end()) {
if (*it == nullptr) {
++it;
continue;
}
if ((*it)->getName() != service) {
++it;
continue;
}
break;
}
if (it == m_listConnectedService.end()) {
// TODO : Generate an ERROR...
ejson::Object answer;
answer.add("from-service", ejson::String("ServiceManager"));
answer.add("id", data["id"]);
JUS_ERROR("Service not linked ... " << service);
answer.add("error", ejson::String("SERVICE-NOT-LINK"));
JUS_DEBUG("answer: " << answer.generateHumanString());
m_interfaceClient.write(answer.generateMachineString());
} else {
JUS_ERROR("Add in link the name of the user in parameter ...");
data.remove("service");
{
std::unique_lock<std::mutex> lock(m_mutex);
m_actions.push_back(std::make_pair(transactionId,
[=](ejson::Object& _data) {
JUS_DEBUG(" ==> transmit");
m_interfaceClient.write(_data.generateMachineString());
}));
}
(*it)->SendData(m_uid, data);
}
}
}
}
void jus::GateWayClient::returnMessage(ejson::Object _data) {
JUS_DEBUG("answer: " << _data.generateHumanString());
int32_t id = _data["id"].toNumber().get();
if (id == 0) {
JUS_ERROR("gateway reject transaction ... ==> No 'id' or 'id' == 0");
return;
}
jus::GateWayClient::Observer obs;
ejson::Object localData;
{
std::unique_lock<std::mutex> lock(m_mutex);
auto it = m_actions.begin();
while (it != m_actions.end()) {
if (it->first != id) {
++it;
continue;
}
obs = (*it).second;
m_actions.erase(it);
break;
}
if (obs == nullptr) {
JUS_ERROR("gateway reject transaction ... (not find answer)" << _data.generateHumanString());
return;
}
}
obs(_data);
if (id >= 0) {
m_interfaceClient.write(_data.generateMachineString());
} else {
JUS_WARNING("Action to do ...");
}
}