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OnvifDeviceDiscovery.cpp
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OnvifDeviceDiscovery.cpp
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#include <sys/types.h>
#include <socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <sys/un.h>
#include "OnvifDeviceDiscovery.h"
#include "OnvifDevice.h"
#include "wsdl_devicemgmt.h"
static const int BUFFER_MAX = 65536;
static const char OnvifProbe[] = "<s:Envelope xmlns:s=\"http://www.w3.org/2003/05/soap-envelope\" xmlns:a=\"http://schemas.xmlsoap.org/ws/2004/08/addressing\"><s:Header><a:Action s:mustUnderstand=\"1\">http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe</a:Action><a:MessageID>urn:uuid:1d3cf678-1234-1234-12a456789abc</a:MessageID><a:ReplyTo><a:Address>http://schemas.xmlsoap.org/ws/2004/08/addressing/role/anonymous</a:Address></a:ReplyTo><a:To s:mustUnderstand=\"1\">urn:schemas-xmlsoap-org:ws:2005:04:discovery</a:To></s:Header><s:Body><Probe xmlns=\"http://schemas.xmlsoap.org/ws/2005/04/discovery\"><d:Types xmlns:d=\"http://schemas.xmlsoap.org/ws/2005/04/discovery\" xmlns:dp0=\"http://www.onvif.org/ver10/network/wsdl\" xmlns:dp1=\"http://www.onvif.org/ver10/device/wsdl\">dp0:NetworkVideoTransmitter dp1:Device</d:Types></Probe></s:Body></s:Envelope>";
OnvifDeviceDiscovery::OnvifDeviceDiscovery(QObject *parent) : QObject(parent) {
connect(this,SIGNAL(CameraDetected()),this,SLOT(onCameraDetected()));
}
OnvifDeviceDiscovery::~OnvifDeviceDiscovery(){}
void OnvifDeviceDiscovery::IPCameraDiscovery(){}
bool OnvifDeviceDiscovery::StartDiscovery() {
isRunning = true;
recvBuffer = new char[BUFFER_MAX];
SetupSocket();
SendProbe();
DeviceServiceEndpoint = OnvifCameraListener();
return true;
}
bool OnvifDeviceDiscovery::StopDiscovery() {
return true;
}
void OnvifDeviceDiscovery::SetupSocket() {
sockaddr_in localAddr;
ip_mreq mreq;
char broadcastIP[] = "239.255.255.250";
int timeout = 5000;
// setup multicast and subscribe to group
mreq.imr_multiaddr.s_addr = inet_addr(broadcastIP);
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
memset(&localAddr, 0, sizeof(sockaddr_in));
localAddr.sin_family = AF_INET;
localAddr.sin_addr.s_addr = INADDR_ANY;
localAddr.sin_port = 0;
// create socket
if ((sock = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
qDebug()<<"Socket create failed!";
// subscribe to multicast group
if (setsockopt(sock, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const char *)&mreq, sizeof(mreq)) < 0)
qDebug() << "Multicast Membership failed!";
// set option to reuse address
if (ReuseAddress(sock) < 0)
qDebug() << "Socket Reuse addr failed!";
// set receive timeout option on the socket
if (SetSocketTimeout(sock, timeout) < 0)
qDebug() << "Socket Timeout failed!";
// bind the socket to local address
if (bind(sock, (sockaddr *)&localAddr, sizeof(sockaddr)) == -1)
qDebug() << "Socket bind failed!";
}
bool OnvifDeviceDiscovery::DetectOnvifCameras() {
// send out an onvif probe message to the network
sockaddr_in broadcastAddr;
const char *broadcastIP = "239.255.255.250";
const int broadcastPort = 3702;
memset(&broadcastAddr, 0, sizeof(broadcastAddr));
// set up multi-cast address
broadcastAddr.sin_family = AF_INET;
broadcastAddr.sin_addr.s_addr = inet_addr(broadcastIP);
broadcastAddr.sin_port = htons(broadcastPort);
int bufferLenOne = strlen(OnvifProbe);
for (int i = 0; i < 1; i++){
if (sendto(sock, OnvifProbe, bufferLenOne, 0, (struct sockaddr *) &broadcastAddr, sizeof(broadcastAddr)) != bufferLenOne) {
qDebug() << "Send probe failed!";
return false;
}
}
//networkManager->incrementCameraValues();
return true;
}
QString OnvifDeviceDiscovery::OnvifCameraListener() {
sockaddr_in fromAddr;
memset(&fromAddr, 0, sizeof(fromAddr));
while(isRunning)
{
socklen_t slen = sizeof(sockaddr);
int val = recvfrom(sock, recvBuffer, BUFFER_MAX, 0, (sockaddr *) &fromAddr, &slen);
if (val < 0)
break;
recvBuffer[val] = '\0';
// check to see if the message is the correct ONVIF format,
// and if so store the IP address for later use
if (fromAddr.sin_addr.s_addr != 0){
KDSoapMessageReader reader;
KDSoapMessage replyMessage;
KDSoapHeaders replyHeader;
this->CameraDetected();
reader.xmlToMessage(recvBuffer, &replyMessage, 0, &replyHeader);
if(replyMessage.name() == "ProbeMatches"){
QString deviceServiceEndpoint = replyMessage.arguments().child("ProbeMatch").childValues().child("XAddrs").value().toString();
return deviceServiceEndpoint;
}
}
}
if (isRunning)
QMetaObject::invokeMethod(this, "OnvifCameraListener", Qt::QueuedConnection);
else
{
delete [] recvBuffer;
// close(sock);
qDebug() << "Onvif Camera Listener Stopped!";
}
}
void OnvifDeviceDiscovery::SendProbe() {
DetectOnvifCameras();
}
bool OnvifDeviceDiscovery::IsOnvifDevice(QString msg) {
return msg.contains("onvif") && msg.contains("NetworkVideoTransmitter");
}
void OnvifDeviceDiscovery::onCameraDetected() {
qDebug() << "Camera detected";
}