Me gustaría saber cómo puedo descargar la fuente HTML de un sitio web en una cadena, sin usar LibCurl. He buscado en línea por ejemplos sobre el uso de Wininet.

A continuación se muestra un código de ejemplo que utilicé para Wininet. ¿Cómo haría lo mismo usando Winsock?

    #include "stdafx.h"
#include <windows.h>
#include <wininet.h>
#include <iostream>
#include <string>
#include <stdio.h>
#include <stdlib.h>
using namespace std;

#pragma comment ( lib, "Wininet.lib" )

int main()
{
    HINTERNET hInternet = InternetOpenA("InetURL/1.0", INTERNET_OPEN_TYPE_PRECONFIG, NULL, NULL, 0);

    HINTERNET hConnection = InternetConnectA(hInternet, "google.com", 80, " ", " ", INTERNET_SERVICE_HTTP, 0, 0);

    HINTERNET hData = HttpOpenRequestA(hConnection, "GET", "/", NULL, NULL, NULL, INTERNET_FLAG_KEEP_CONNECTION, 0);

    char buf[2048];
    string lol;
    HttpSendRequestA(hData, NULL, 0, NULL, 0);

    DWORD bytesRead = 0;
    DWORD totalBytesRead = 0;
    // http://msdn.microsoft.com/en-us/library/aa385103(VS.85).aspx
    // To ensure all data is retrieved, an application must continue to call the
    // InternetReadFile function until the function returns TRUE and the
    // lpdwNumberOfBytesRead parameter equals zero. 
    while (InternetReadFile(hData, buf, 2000, &bytesRead) && bytesRead != 0)
    {
        buf[bytesRead] = 0; // insert the null terminator.

        puts(buf);          // print it to the screen.
        lol = lol + buf;

        printf("%d bytes read\n", bytesRead);

        totalBytesRead += bytesRead;
    }

    printf("\n\n END -- %d bytes read\n", bytesRead);
    printf("\n\n END -- %d TOTAL bytes read\n", totalBytesRead);

    InternetCloseHandle(hData);
    InternetCloseHandle(hConnection);
    InternetCloseHandle(hInternet);

    cout << "\nThe beginning." << endl << endl << endl;

    cout << lol << endl;


    system("PAUSE");
}

Este ejemplo de WinSock funciona para sitios sin rutas adicionales. ¿Cómo puedo capturar el HTML de una página como esta: (www.website.com/page)

    #include "stdafx.h"
#include <iostream>
#include <winsock2.h>
#include <string>
#include <fstream>
using namespace std;


string get_source()
{
    WSADATA WSAData;
    WSAStartup(MAKEWORD(2, 0), &WSAData);

    SOCKET sock;
    SOCKADDR_IN sin;

    char buffer[1024];

    ////////////////This is portion that is confusing me//////////////////////////////////////////////////
    string srequete = "GET /id/AeroNX/ HTTP/1.1\r\n";
    srequete += "Host: steamcommunity.com\r\n";
    srequete += "Connection: close\r\n";
    srequete += "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5\r\n";
    srequete += "Accept-Language: fr,fr-fr;q=0.8,en-us;q=0.5,en;q=0.3\r\n";
    srequete += "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r\n";
    srequete += "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; fr; rv:1.8.1.3) Gecko/20070309 Firefox/2.0.0.3\r\n";
    srequete += "Referer: http://pozzyx.net/\r\n";
    srequete += "\r\n";
    ///////////////////////////////////////////////////////////////////////////////////////////////////////

    size_t requete_taille = srequete.size() + 1;

    char crequete[5000];
    strncpy(crequete, srequete.c_str(), requete_taille);

    int i = 0;
    string source = "";

    sock = socket(AF_INET, SOCK_STREAM, 0);

    sin.sin_addr.s_addr = inet_addr("63.228.223.103"); // epguides.com //why wont it work for 72.233.89.200 (whatismyip.com)
    sin.sin_family = AF_INET;
    sin.sin_port = htons(80); // port HTTP.

    connect(sock, (SOCKADDR *)&sin, sizeof(sin)); // on se connecte sur le site web.
    send(sock, crequete, strlen(crequete), 0); // why do we send the string??


    do
    {
        i = recv(sock, buffer, sizeof(buffer), 0); // le buffer récupère les données reçues.
        source += buffer;
    } while (i != 0);


    closesocket(sock); // on ferme le socket.
    WSACleanup();

    return source;
}

void main()
{
    ofstream fout;
    fout.open("Buffer.txt");
    fout << get_source(); // the string url doesnt matter
    fout.close();
    system("PAUSE");
}