hermes/src/Socket.h

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2008-12-14 20:12:48 +01:00
/**
* hermes antispam proxy
* Copyright (C) 2006, 2007 Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* @author Juan José Gutiérrez de Quevedo <juanjo@gutierrezdequevedo.com>
*/
#ifndef SOCKET_H
#define SOCKET_H
#include "hermes.h"
#include <iostream>
#include <string>
#include <sstream>
#include <sys/types.h>
#ifdef WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#ifndef AI_ADDRCONFIG
#define AI_ADDRCONFIG 0 //if the windows we are compiling at is old, define it as 0
#endif //AI_ADDRCONFIG
#else
#include <sys/socket.h>
#include <netdb.h>
#include <arpa/inet.h>
#endif //WIN32
#include <errno.h>
#ifdef HAVE_SSL
#include <openssl/ssl.h>
#include <openssl/rand.h>
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#endif //HAVE_SSL
//this is a bit of a hack
//if a system doesn't have MSG_NOSIGNAL then we define it as 0 (that is, no options selected)
//I've tried this on Solaris and NetBSD and it seems to work. Still, recheck in the future (TODO)
#ifndef MSG_NOSIGNAL
#define MSG_NOSIGNAL 0
#endif //MSG_NOSIGNAL
#include "Configfile.h"
#include "Utils.h"
using namespace std;
/**
* implements a socket class independent of operating system and that supports ssl
*/
class Socket
{
protected:
int fd;
private:
// bool closed;
static int created_sockets;
#ifdef HAVE_SSL
bool ssl_enabled;
SSL *ssl;
static SSL_CTX *ssl_ctx_client;
static SSL_CTX *ssl_ctx_server;
#endif //HAVE_SSL
public:
Socket();
~Socket();
#ifdef HAVE_SSL
bool is_ssl_enabled();
void prepareSSL(bool);
void startSSL(bool);
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#endif //HAVE_SSL
void setFD(int);
bool canRead(float);
bool connect(string,unsigned int);
int getFD();
static struct sockaddr resolve(string);
static string resolveToString(string);
static string resolveInverselyToString(string);
void init();
void close();
//reading and writing
char readByte();
ssize_t readBytes(void *,ssize_t);
string readLine();
void writeByte(char);
void writeBytes(void *,ssize_t);
void writeLine(string);
bool isClosed();
void setTimeout(float,float);
};
#endif //SOCKET_H