Code-Bin #870 - xrusna02 xsiebe03

xrusna02 xsiebe03
Posted by: xrusna02 xsiebe03 | September 30, 2010 @ 8:32am

C++ Code

// BPPA_SERVER.cpp : Defines the entry point for the console application.
//

// xsiebe03 (FEKT)
// xrusna02 (FIT)

#include <iostream>
#include <stdio.h>
#include <windows.h>
#include <string>
#include <winsock.h>
#include <fstream>

#pragma comment (lib,"WS2_32.lib")
#define BUFSIZE 1000

using namespace std;

int main(int argc, char *argv[])
{
	WORD wVersionRequested = MAKEWORD(1,1); // ��slo verze
    WSADATA data;           // Struktura s info. o knihovn�;    
    std::string text;       // P�ij�man� text
    sockaddr_in sockName;   // "Jm�no" soketu a ��slo portu
    sockaddr_in clientInfo; // Klient, kter� se p�ipojil 
    SOCKET mainSocket;      // Soket
    int port;               // ��slo portu
    char buf[BUFSIZE];      // P�ij�mac� buffer
 
	int size;               // Po�et p�ijat�ch a odeslan�ch byt�
    int addrlen;            // Velikost adresy vzd�len�ho po��ta�e
    int count = 0;          // Po�et p�ipojen�
	
	while(1){
    if (WSAStartup(wVersionRequested, &data) != 0)
    {
        cout << "Nepodarilo se inicializovat sokety" << endl;
        return -1;
    }    
    port = 80;
	    if ((mainSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP)) 
                 == INVALID_SOCKET)
    {
        cerr << "Nelze vytvorit soket" << endl;
        WSACleanup();
        return -1;
    }
    // Zapln�me strukturu sockaddr_in
    // 1) Rodina protokol�;
    sockName.sin_family = AF_INET;
    // 2) ��slo portu, na kter�m �ek�me
    sockName.sin_port = htons(port);
    // 3) Nastaven� IP adresy lok�ln� s�ov� karty, p�es kterou 
    // je mo�no se p�ipojit. 
    // Nastav�me mo�nost p�ipojit se odkudkoliv. 
    sockName.sin_addr.s_addr = INADDR_ANY;
    //p�i�ad�me soketu jm�no
    if (bind(mainSocket, (sockaddr *)&sockName, sizeof(sockName)) 
                == SOCKET_ERROR)
    {
        cerr << "Problem s pojemnovanim soketu" << endl;
        WSACleanup();
        return -1;
    }

// Vytvo��me frontu po�adavk� na spojen�. 
    // Vytvo��me frontu maxim�ln� velikosti 10 po�adavk�.
	cout << "Nasloucham na portu:" << port << endl;
    if (listen(mainSocket, 10) == SOCKET_ERROR)
    {
        cerr << "Problem s vytvorenim fronty" << endl;
        WSACleanup();
        return -1;
    }

// Pozna��m si velikost struktury clientInfo.
        // P�ed�m to funkci accept. 
        addrlen = sizeof(clientInfo);
        // Vyberu z fronty po�adavek na spojen�.
        // "client" je nov� soket spojuj�c� klienta se serverem.
        SOCKET client = accept(mainSocket, (sockaddr*)&clientInfo, 
                              &addrlen);
        int totalSize = 0;
        if (client == INVALID_SOCKET)
        {
                cerr << "Problem s prijetim dat" <<endl;
                WSACleanup();
                return -1;
        }
        // Zjist�m IP adresu klienta.
		cout << "Nekdo se pripojil z adresy: " 
                << inet_ntoa((in_addr)clientInfo.sin_addr) << endl;
        // P�ijmu data. Ke komunikaci s klientem pou��v�m soket 
       // "client"

text = "";
        // Prijmuti dat od clienta
		for (int i=0;i<BUFSIZE;i++)
			buf[i] = 0;
        while (totalSize <= 50)
        {
			if ((size = recv(client, buf, BUFSIZE-1, 0)) 
                          == SOCKET_ERROR)
                {
                        cerr << "Problem s prijetim dat." << endl;
                        WSACleanup();
                        return -1;
                }
                cout << "Prijato:" << size << endl;
                totalSize += size;
				text.append(buf);

}
		
		//segmentace textu ze zpravy klienta
		int zero=text.find('\n');
		text.erase(zero);
		string cesta;
		int zero3 = text.rfind(' ');
		text.erase(zero3);
		zero = text.find('/');
		cesta.append(text,zero+1,(text.length())-(zero+1));

cout << endl << "Obsah pole je:" << cesta << endl;

//Prace se souborem
		ifstream myfile;
		string line,obsah;
		myfile.open (cesta.c_str());
		if (myfile.is_open())
		{
			while (! myfile.eof() )
			{
			getline (myfile,line);
			obsah +=line;
			obsah +='\n';
			}
		cout << "Obsah souboru:" << endl << obsah;
		myfile.close();
		}
		else
		{
		myfile.close();
		myfile.clear();
		myfile.open ("404.html");
		if (myfile.is_open())
		{
			while (! myfile.eof() )
			{
			getline (myfile,line);
			obsah +=line;
			obsah +='\n';
			}
		cout << "Obsah souboru:" << endl << obsah;
		myfile.close();
		}
		}

string OK = "HTTP/1.1 200 OK\r\nAccept-ranges: bytes\r\nContent-length: 82\r\nContent-type: text/html\r\n";
        // Odeslu potvrzeni komunikace
		if ((size = send(client, OK.c_str(), OK.length(), 0))==SOCKET_ERROR)
        {
                cerr << "Problem s odeslanim dat" << endl;
                WSACleanup();
                return -1;
        }
		if ((size = send(client, obsah.c_str(), obsah.length(), 0))==SOCKET_ERROR)
        {
                cerr << "Problem s odeslanim dat" << endl;
                WSACleanup();
                return -1;
        }
        cout << "Odeslano: " << size << endl;
        // Uzav�u spojen� s klientem
        closesocket(client);

cout << "Koncim" << endl << endl << endl;
		closesocket(mainSocket); 
		WSACleanup();  
		}

return 0;
}

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