Create a WebSocket secure access (WSS) client using the Poco C + + library

Source: Internet
Author: User


Poco WebSocket Library Features:



1, create WebSocket client using Http/https clientsession



2, is synchronized, this should be sufficient for C + + desktop programming.



3, rely on OpenSSL.


The code is as follows
#include "stdafx.h"
#include <iostream>
#include <assert.h>

#include "Poco/net/websocket.h"
#include "Poco/net/httpclientsession.h"
#include "Poco/net/httprequest.h"
#include "poco/net/httpresponse.h"
#include "Poco/net/serversocket.h"
#include "Poco/net/netexception.h"
#include "Poco/exception.h"
#include "Poco/net/httpsclientsession.h"

#include "Poco/uristreamopener.h"
#include "Poco/streamcopier.h"
#include "poco/path.h"
#include "poco/uri.h"
#include "Poco/sharedptr.h"
#include "Poco/exception.h"
#include "Poco/net/httpstreamfactory.h"
#include "Poco/net/httpsstreamfactory.h"
#include "Poco/net/ftpstreamfactory.h"
#include "Poco/net/sslmanager.h"
#include "Poco/net/keyconsolehandler.h"
#include "Poco/net/consolecertificatehandler.h"
#include "Poco/net/acceptcertificatehandler.h"
#include "Poco/net/securestreamsocket.h"
#include "poco/net/x509certificate.h"
#include <memory>

Using Poco::net::httpsclientsession;
Using Poco::net::httpclientsession;
Using Poco::net::httprequest;
Using Poco::net::httpresponse;
Using Poco::net::httpserverrequest;
Using Poco::net::httpserverresponse;
Using Poco::net::websocket;
Using Poco::net::websocketexception;
Using Poco::exception;

Using Poco::uristreamopener;
Using Poco::streamcopier;
Using Poco::P ath;
Using Poco::uri;
Using Poco::sharedptr;
Using Poco::exception;
Using Poco::net::httpstreamfactory;
Using Poco::net::httpsstreamfactory;
Using Poco::net::ftpstreamfactory;
Using Poco::net::sslmanager;
Using Poco::net::context;
Using Poco::net::keyconsolehandler;
Using poco::net::P rivatekeypassphrasehandler;
Using Poco::net::invalidcertificatehandler;
Using Poco::net::consolecertificatehandler;
Using Poco::net::acceptcertificatehandler;
Using Poco::net::x509certificate;



int main (int argc, _tchar* argv[])
{
Char buffer[1024];
int flags;
int n;
std::string payload;

Try
{

Poco::net::initializessl ();

sharedptr<invalidcertificatehandler> Pcert = new Consolecertificatehandler (false); Ask the user via console
Context::P TR PContext = new context (Context::tlsv1_client_use, "", "", "Rootcert.pem", context::verify_relaxed, 9, False , "all:! Adh:! low:! Exp:! MD5: @STRENGTH ");
Sslmanager::instance (). Initializeclient (0, Pcert, pContext);

Httpsclientsession CS ("echo.websocket.org", 443);
HttpRequest request (Httprequest::http_get, "/", "http/1.1");
HttpResponse response;
std::string cmd;

WebSocket * ws = new WebSocket (CS, request, response); Causes the timeout

Payload = "Shakethand";
Ws->sendframe (Payload.data (), Payload.size (), websocket::frame_text);
n = ws->receiveframe (buffer, sizeof (buffer), flags);

std::cout<< "return:" <<std::string (buffer,n) << "\ n";
Ws->shutdown ();

}

catch (poco::exception& ex)
{
Std::cout << "Error: <<__FILE__<<": "<<__LINE__<<": "<< Ex.displaytext () < < "\ n";
return-1;
}
return 0;

}


WS client creation is no longer redundant, and there are examples from the authorities.


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