Prompt user for Username Password in browser while using winsock - c++

Question

I have written code in C++ with Winsock. It converts a video to mjpeg stream and sends it over TCP using Winsock in windows. Now I am able to see the video in any browser with the link.
But the problem is that anyone with the link can see it. I want to prompt the user to enter username and password to access the feed, whenever he types the IP address.
Here is my code:
#include <winsock.h>
#include <windows.h>
#include <time.h>
#define PORT unsigned long
#define ADDRPOINTER int*
struct _INIT_W32DATA
{
WSADATA w;
_INIT_W32DATA() { WSAStartup( MAKEWORD( 2, 1 ), &w ); }
} _init_once;
#include <iostream>
using std::cerr;
using std::endl;
#include <iostream>
#pragma comment(lib, "wsock32.lib")
using namespace std;
class MJPGWriter
{
SOCKET sock;
fd_set master;
int timeout; // master sock timeout, shutdown after timeout millis.
int quality; // jpeg compression [1..100]
int _write( int sock, char *s, int len )
{
if ( len < 1 ) { len = strlen(s); }
return ::send( sock, s, len, 0 );
}
public:
MJPGWriter(int port = 0)
: sock(INVALID_SOCKET)
, timeout(20000)
, quality(30)
{
FD_ZERO( &master );
if (port)
open(port);
}
~MJPGWriter()
{
release();
}
bool release()
{
if ( sock != INVALID_SOCKET )
::shutdown( sock, 2 );
sock = (INVALID_SOCKET);
return false;
}
bool open( int port )
{
sock = ::socket (AF_INET, SOCK_STREAM, IPPROTO_TCP) ;
SOCKADDR_IN address;
address.sin_addr.s_addr = INADDR_ANY;
address.sin_family = AF_INET;
address.sin_port = ::htons(port);
if ( ::bind( sock, (SOCKADDR*) &address, sizeof(SOCKADDR_IN) ) == SOCKET_ERROR )
{
cerr << "error : couldn't bind sock "<<sock<<" to port "<<port<<"!" << endl;
return release();
}
if ( ::listen( sock, 10 ) == SOCKET_ERROR )
{
cerr << "error : couldn't listen on sock "<<sock<<" on port "<<port<<" !" << endl;
return release();
}
FD_SET( sock, &master );
return true;
}
bool isOpened()
{
return sock != INVALID_SOCKET;
}
bool write(const cv::Mat & frame)
{
fd_set rread = master;
struct timeval to = {0,timeout};
SOCKET maxfd = sock+1;
if ( ::select( maxfd, &rread, NULL, NULL, &to ) <= 0 )
return true; // nothing broken, there's just noone listening
std::vector<uchar>outbuf;
std::vector<int> params;
params.push_back(cv::IMWRITE_JPEG_QUALITY);
params.push_back(quality);
cv::imencode(".jpg", frame, outbuf, params);
int outlen = outbuf.size();
#ifdef _WIN32
for ( unsigned i=0; i<rread.fd_count; i++ )
{
SOCKET s = rread.fd_array[i]; // fd_set on win is an array, while ...
#else
for ( int s=0; s<maxfd; s++ )
{
if ( ! FD_ISSET(s,&rread) ) // ... on linux it's a bitmask ;)
continue;
#endif
if ( s == sock ) // request on master socket, accept and send main header.
{
int addrlen = sizeof(SOCKADDR);
SOCKADDR_IN address = {0};
SOCKET client = ::accept( sock, (SOCKADDR*)&address, &addrlen );
if ( client == SOCKET_ERROR )
{
cerr << "error : couldn't accept connection on sock " << sock<< " !" << endl;
return false;
}
maxfd=(maxfd>client?maxfd:client);
FD_SET( client, &master );
_write( client,"HTTP/1.0 200 OK\r\n",0);
_write( client,
"Server: Mozarella/2.2\r\n"
"Accept-Range: bytes\r\n"
"Connection: close\r\n"
"Max-Age: 0\r\n"
"Expires: 0\r\n"
"Cache-Control: no-cache, private\r\n"
"Pragma: no-cache\r\n"
"Content-Type: multipart/x-mixed-replace; boundary=mjpegstream\r\n"
"\r\n",0);
cerr << "new client " << client << endl;
}
else // existing client, just stream pix
{
char head[400];
sprintf(head,"--mjpegstream\r\nContent-Type: image/jpeg\r\nContent-Length: %lu\r\n\r\n",outlen);
_write(s,head,0);
int n = _write(s,(char*)(&outbuf[0]),outlen);
//cerr << "known client " << s << " " << n << endl;
if ( n < outlen )
{
cerr << "kill client " << s << endl;
::shutdown(s,2);
FD_CLR(s,&master);
}
}
}
return true;
}
};
I am using it by sending image frame and port number to writer.