Webserv/srcs/server.cpp

#include "webserv.hpp"
#define PORT 80

int main(int ac, char **av) {
    Env env;
    int opt = 1;
    int master_socket, addrlen, new_socket, client_socket[30],
        max_clients = 30, activity, i, valread, sd;
    int max_sd;
    struct sockaddr_in address;

    char buffer[30000];

    fd_set readfds;

    char _404[72] =
        "HTTP/1.1 200 OK\nContent-Type: text/plain\nContent-Length: 4\n\n404!";

    if (ac > 1) {

        cout << "Parsing configuration file...\n";
        JSONParser parser(av[1]);
        JSONNode *conf = parser.parse();
        cout << "Configuration parsed.\n";

        cout << "Setting environment...\n";
        env.max_clients = conf->obj()["max_clients"]->nbr();
        JSONList servers = conf->obj()["servers"]->lst();
        for (std::vector<JSONNode *>::iterator i = servers.begin();
             i < servers.end(); i++) {
            JSONObject datas = (*i)->obj();
            Server *server =
                new Server(datas["server_name"]->str(), datas["root"]->str(),
                           datas["return"]->str(), datas["listen"],
                           datas["index"], datas["location"]);
			delete *i;
        }
		delete conf;
        cout << "Environment setup.\n";
    }

    for (i = 0; i < max_clients; i++)
        client_socket[i] = 0;

    if ((master_socket = socket(AF_INET, SOCK_STREAM, 0)) == 0) {
        std::cout << std::strerror(errno) << std::endl;
        exit(EXIT_FAILURE);
    }

    if (setsockopt(master_socket, SOL_SOCKET, SO_REUSEADDR, (char *)&opt,
                   sizeof(opt)) < 0) {
        std::cout << std::strerror(errno) << std::endl;
        exit(EXIT_FAILURE);
    }

    address.sin_family = AF_INET;
    address.sin_addr.s_addr = INADDR_ANY;
    address.sin_port = htons(PORT);

    if (bind(master_socket, (struct sockaddr *)&address, sizeof(address)) < 0) {
        std::cout << std::strerror(errno) << std::endl;
        exit(EXIT_FAILURE);
    }
    std::cout << "Listener on port " << PORT << std::endl;

    if (listen(master_socket, 3) < 0) {
        std::cout << std::strerror(errno) << std::endl;
        exit(EXIT_FAILURE);
    }

    addrlen = sizeof(address);
    std::cout << "Waiting for connections ..." << std::endl;

    while (1) {
        FD_ZERO(&readfds);
        FD_SET(master_socket, &readfds);
        max_sd = master_socket;

        for (i = 0; i < max_clients; i++) {
            sd = client_socket[i];
            if (sd > 0)
                FD_SET(sd, &readfds);
            if (sd > max_sd)
                max_sd = sd;
        }

        activity = select(max_sd + 1, &readfds, NULL, NULL, NULL);

        if ((activity < 0) && (errno != EINTR))
            std::cout << std::strerror(errno) << std::endl;

        if (FD_ISSET(master_socket, &readfds)) {
            if ((new_socket = accept(master_socket, (struct sockaddr *)&address,
                                     (socklen_t *)&addrlen)) < 0) {
                std::cout << std::strerror(errno) << std::endl;
                exit(EXIT_FAILURE);
            }
#ifdef __APPLE__
            fcntl(new_socket, F_GETNOSIGPIPE);
#endif
            std::cout << "New connection, socket fd is " << new_socket
                      << ", ip is : " << inet_ntoa(address.sin_addr)
                      << ", port : " << ntohs(address.sin_port) << std::endl;

            for (i = 0; i < max_clients; i++) {
                if (client_socket[i] == 0) {
                    client_socket[i] = new_socket;
                    std::cout << "Adding to list of sockets as " << i
                              << std::endl;
                    break;
                }
            }
        }

        for (i = 0; i < max_clients; i++) {
            sd = client_socket[i];
            if (FD_ISSET(sd, &readfds)) {
                valread = read(sd, buffer, 30000);
                if (valread == 0) {
                    getpeername(sd, (struct sockaddr *)&address,
                                (socklen_t *)&addrlen);
                    std::cout << "Host disconnected, ip "
                              << inet_ntoa(address.sin_addr) << ", port "
                              << ntohs(address.sin_port) << std::endl;
                    close(sd);
                    client_socket[i] = 0;
                } else
                    send(sd, _404, strlen(_404), MSG_NOSIGNAL);
            }
        }
    }
    return (0);
}