bool DHASWifiNodesModule:: processDataFromMulticastSocket()
{
char buf[2000];
struct sockaddr_in src;
socklen_t addrlen;
addrlen = sizeof(struct sockaddr_in);
int n = recvfrom(mSocket, buf, 2000, 0, (struct sockaddr*)&src, &addrlen);
if(n<0)
{
if (errno == EAGAIN) return true; // Why would this happen?
close(mSocket);
LOG("Multicast listener read returned " << n << "(" << errno << "). Socket closed.");
return false;
}
else if (n>0)
{
std::string str(buf,n);
Dumais::JSON::JSON json;
json.parse(str);
char* ip = inet_ntoa(src.sin_addr);
this->discoverNode(json["name"].str(),ip,json["id"].str());
}
return true;
}
void KeypadLinc::toJSON(Dumais::JSON::JSON& obj)
{
std::stringstream ss;
ss << "0x" << std::hex << std::setfill('0') << std::setw(6) << mID;
obj.addValue(ss.str(),"id");
obj.addValue(this->getName(),"name");
obj.addValue(this->getDeviceType(),"type");
// obj.addValue(this->getState()?255:0,"level");
}
void RESTCallBack::getDescription(Dumais::JSON::JSON& json)
{
json.addValue(mDescription,"description");
Dumais::JSON::JSON& params = json.addList("params");
for (ParamMap::const_iterator it = mParamList.begin(); it!=mParamList.end(); it++)
{
Dumais::JSON::JSON& j = params.addObject("param");
j.addValue(it->first,"name");
j.addValue(it->second.mDescription, "description");
}
}
RESTEngine::ResponseCode RESTCallBack::call(Dumais::JSON::JSON& json, const std::string& paramString,
const std::string& dataString, std::smatch& matches,
std::shared_ptr<void> userData)
{
RESTParameters params(paramString, mParamList);
// Let's check required params
for (ParamMap::const_iterator it = mParamList.begin(); it != mParamList.end(); ++it) {
// todo later : handle/check in "path" parameters: http://server:port/param1/param2
if (it->second.mRequired && (it->second.mLocation == "query") ) {
if (params.getParam(it->first).empty()) {
std::cerr << "Missing mandatory parameter " << it->first << std::endl;
// todo : replace empty parameter value by default parameter value
json.addValue("Missing required parameter " + it->first, "error");
return RESTEngine::ResponseCode::BadRequest;
}
}
}
RESTEngine::ResponseCode responseCode = RESTEngine::ResponseCode::OK;
RESTContext context ={
json,
¶ms,
dataString,
matches,
responseCode,
userData
};
assert(mCallback);
if (mCallback)
mCallback(&context);
return responseCode;
}
void Subscription::toJSON(Dumais::JSON::JSON& json)
{
Dumais::JSON::JSON& j = json.addObject("subscription");
j.addValue(getID(),"id");
j.addValue(mDevice,"device");
j.addValue(mDeviceStatus,"devicestate");
}
void Thermostat::toJSON(Dumais::JSON::JSON& obj)
{
std::stringstream ss;
ss << "0x" << std::hex << std::setfill('0') << std::setw(6) << mID;
obj.addValue(ss.str(),"id");
obj.addValue(this->getName(),"name");
obj.addValue(this->getDeviceType(),"type");
obj.addValue((unsigned int)this->getTemperature(),"temperature");
obj.addValue((unsigned int)this->getHeatSetPoint(),"heatpoint");
obj.addValue((unsigned int)this->getCoolSetPoint(),"coolpoint");
obj.addValue((unsigned int)this->getHumidity(),"humidity");
obj.addValue((unsigned int)this->getOperatingMode(),"operatingmode");
obj.addValue((unsigned int)this->getOperatingState(),"operatingstate");
obj.addValue((unsigned int)mThermostatProgram.isActive(),"programactive");
}
void Insteon::listModules(Dumais::JSON::JSON& json)
{
for (std::map<InsteonID,InsteonDevice*>::iterator it=mModules.begin();it!=mModules.end();it++)
{
Dumais::JSON::JSON& obj = json.addObject("module");
it->second->toJSON(obj);
// printf("TEST %s\r\n",obj.stringify(false).c_str());
}
}
void DHASWifiNodesModule::checkHeartBeats()
{
time_t t;
time(&t);
t -= (3*NODE_HEARTBEAT);
for (auto& it : mNodes)
{
DHASWifiNode* node = &it.second;
if (node->lastHeartBeat <= t)
{
LOG("Node [" << node->driver->getName() <<"] @ " << node->driver->getInfo().ip << " heartbeat failure. Disconnecting");
close(node->socket);
Dumais::JSON::JSON json;
json.addValue("dwn","event");
json.addValue("closed","type");
json.addValue(node->driver->getInfo().ip,"ip");
json.addValue(node->driver->getName(),"name");
json.addValue(node->driver->getInfo().id,"id");
mpEventProcessor->processEvent(json);
std::string ip = node->driver->getInfo().ip;
node->driver->unRegisterCallBacks(mpRestEngine);
delete node->driver;
node->driver = 0;
this->mNodesListLock.lock();
mNodes.erase(ip);
this->mNodesListLock.unlock();
}
}
}
void Thermostat::getProgramPoints(Dumais::JSON::JSON& json)
{
json.addList("points");
for (unsigned char i=0;i<(24*7);i++)
{
ProgramPoint point = mThermostatProgram.getPoint(i);
if (point.mode > 0)
{
Dumais::JSON::JSON& obj = json["points"].addObject("ProgramPoint");
obj.addValue(point.temp,"temperature");
obj.addValue(point.mode,"mode");
obj.addValue(i,"hour");
}
}
}
void RESTEngine::documentInterface(Dumais::JSON::JSON& json)
{
json.addList("api");
for (CallbackMap::iterator it = mCallbacks.begin(); it != mCallbacks.end(); it++)
{
std::string method = it->first;
std::transform(method.begin(),method.end(),method.begin(),::toupper);
for (auto it2 = it->second.begin(); it2 != it->second.end(); ++it2)
{
Dumais::JSON::JSON& j = json["api"].addObject();
it2->mpCallback->getDescription(j);
j.addValue(it2->uri,"path");
j.addValue(method,"method");
}
}
return;
}
void KeypadLinc::processEvent(Dumais::JSON::JSON& json, unsigned char* buf)
{
// Get the status
unsigned char flags = buf[8];
unsigned char status = (flags & 0b11100000)>>5;
unsigned char cmd1 = buf[9];
unsigned char cmd2 = buf[10];
bool ackOfDirectMessage = (status==0b001);
if (status==0b010) // Group cleanup direct message
{
json.addValue("insteon","event");
json.addValue(mID,"id");
json.addValue(this->getName(),"name");
json.addValue("unsolicited","trigger");
unsigned char level = 0;
if (cmd1==0x11){
level = 255;
json.addValue("keypad","type");
json.addValue(cmd2,"button");
json.addValue(level,"value");
/* we turn button off again so that it gets updated by script instead. This is a hack
* otherwise the button is on, but if nothing reacts to it, it will stay on
*/
//turnOnOrOff(false,0,cmd2);
} else if (cmd1==0x13) {
level = 0;
json.addValue("keypad","type");
json.addValue(cmd2,"button");
json.addValue(level,"value");
/* we turn button on again so that it gets updated by script instead. This is a hack
* otherwise the button is on, but if nothing reacts to it, it will stay on
*/
//turnOnOrOff(true,0,cmd2);
}
}
}
void DHASWifiNodesModule::discoverNode(std::string name, std::string ip, std::string id)
{
if (ip == "0.0.0.0") return;
if (mNodes.find(ip) == mNodes.end())
{
LOG("Found an advertisement from [" << name << "] at " << ip);
if (mNodes.size() >= MAX_NODES_COUNT)
{
LOG("ERROR: The number of nodes registered in the system has reached maximum capacity");
return;
}
IDWN* driver = IDWN::createDriverInstance(name);
if (driver == 0)
{
// TODO: should probably ignore all further broadcasts.
LOG("ERROR: No suitable driver found for wifi node [" << name << "]");
return;
}
DHASWifiNode node;
node.driver = driver;
node.driver->getInfo().ip = ip;
node.driver->getInfo().id = id;
node.driver->getInfo().sendQueue = &mSendQueue;
time(&node.lastHeartBeat);
if (connectNode(&node))
{
LOG("Node [" << name << "] @ " << ip << " connected.");
this->mNodesListLock.lock();
mNodes[ip] = node;
this->mNodesListLock.unlock();
node.driver->registerCallBacks(mpRestEngine);
Dumais::JSON::JSON json;
json.addValue("dwn","event");
json.addValue("new","type");
json.addValue(ip,"ip");
json.addValue(name,"name");
json.addValue(id,"id");
mpEventProcessor->processEvent(json);
}
else
{
LOG("Could not connect to node [" << name << "] @ " << ip);
}
}
}
void DHASWifiNodesModule::receiveFromNode(DHASWifiNode* node)
{
//TODO: we could be receiving two messages in the same packet. we should accumulate in buffer until we find a terminating 0.
// and all DWN devices should terminate a message with 0
char buf[2000];
int n = recv(node->socket,buf,2000,0);
//LOG("receiving from node: " << n << " " << errno);
if (n<=0)
{
if (n==-1 && errno == EAGAIN) return;
LOG("Node failed [" << node->driver->getName() << "] @ " << node->driver->getInfo().ip << " (" << errno << "). Removing");
close(node->socket);
Dumais::JSON::JSON json;
json.addValue("dwn","event");
json.addValue("closed","type");
json.addValue(node->driver->getInfo().ip,"ip");
json.addValue(node->driver->getName(),"name");
json.addValue(node->driver->getInfo().id,"id");
mpEventProcessor->processEvent(json);
std::string ip = node->driver->getInfo().ip;
node->driver->unRegisterCallBacks(mpRestEngine);
delete node->driver;
node->driver = 0;
this->mNodesListLock.lock();
mNodes.erase(ip);
this->mNodesListLock.unlock();
return;
}
std::string payload (buf,n);
//LOG("payload (" << n << "): " << payload);
if (payload == "yo!\r\n")
{
time(&node->lastHeartBeat);
}
else
{
if (node->driver == 0)
{
LOG("ERROR: Can't process data from " << node->driver->getName() <<" ("<<node->driver->getInfo().id<<". Driver not associated");
}
else
{
Dumais::JSON::JSON j;
if (node->driver->processData(buf,n,j))
{
j.addValue("dwn","event");
j.addValue(node->driver->getInfo().ip,"ip");
j.addValue(node->driver->getName(),"name");
j.addValue(node->driver->getInfo().id,"id");
mpEventProcessor->processEvent(j);
}
}
}
}
