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/*******************************************************************************
* shroudBNC - an object-oriented framework for IRC *
* Copyright (C) 2005-2014 Gunnar Beutner *
* *
* 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; either version 2 *
* of the License, or (at your option) any later version. *
* *
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
*******************************************************************************/
#include "../src/StdAfx.h"
#ifndef _WIN32
#error This module cannot be used on *nix systems.
#endif
class CIdentModule;
CCore *g_Bouncer;
class CIdentClient : public CConnection {
public:
CIdentClient(SOCKET Client) : CConnection(Client) {
}
virtual void ParseLine(const char* Line) {
if (Line[0] == '\0') {
return;
}
if (g_Bouncer->GetIdent() == NULL) {
g_Bouncer->Log("GetIdent() failed. identd not functional.");
Destroy();
return;
}
int LocalPort = 0, RemotePort = 0;
char *dupLine = strdup(Line);
char *StringRemotePort;
if ((StringRemotePort = strstr(dupLine, ",")) != NULL) {
StringRemotePort[0] = '\0';
StringRemotePort++;
RemotePort = atoi(StringRemotePort);
}
LocalPort = atoi(dupLine);
free(dupLine);
if (LocalPort == 0 || RemotePort == 0) {
g_Bouncer->Log("Received invalid ident-request.");
return;
}
int i = 0, LPort, RPort;
const char *Ident;
hash_t<CUser *> *UserHash;
while ((UserHash = g_Bouncer->GetUsers()->Iterate(i++)) != NULL) {
CUser *User = UserHash->Value;
CIRCConnection *IRC = User->GetIRCConnection();
if (!IRC || IRC->GetState() == State_Connected) {
continue;
}
Ident = User->GetIdent();
if (Ident == NULL) {
Ident = UserHash->Name;
}
// 113 , 3559 : USERID : UNIX : shroud
WriteLine("%d , %d : USERID : UNIX : %s", LocalPort, RemotePort, Ident);
g_Bouncer->Log("Answered ident-request for %s", User->GetUsername());
return;
}
FILE *IdentFile = fopen("ident", "r");
if (IdentFile != NULL) {
char IdentBuffer[50];
if (fgets(IdentBuffer, sizeof(IdentBuffer), IdentFile) == NULL) {
// TODO: error reply
IdentBuffer[0] = '\0';
} else {
for (int i = strlen(IdentBuffer); i > 0; i--) {
if (IdentBuffer[i] == '\r' || IdentBuffer[i] == '\n') {
IdentBuffer[i] = '\0';
}
}
}
WriteLine("%d, %d : USERID : UNIX : %s", LocalPort, RemotePort, IdentBuffer);
fclose(IdentFile);
g_Bouncer->Log("Ident-request for unknown user. Returned ident from \"ident\" file: %s", IdentBuffer);
} else {
WriteLine("%d , %d : USERID : UNIX : %s", LocalPort, RemotePort, g_Bouncer->GetIdent());
g_Bouncer->Log("Ident-request for unknown user.");
}
}
virtual void Destroy(void) {
delete this;
}
bool ShouldDestroy(void) const { return false; }
const char *GetClassName(void) const {
return "CIdentClient";
}
virtual int SSLVerify(int PreVerifyOk, X509_STORE_CTX *Context) const {
return 0;
}
};
IMPL_SOCKETLISTENER(CIdentListener) {
public:
CIdentListener(int Family) : CListenerBase<CIdentListener>(113, NULL, Family) { }
void Accept(SOCKET Client, const sockaddr *PeerAddress) {
CIdentClient *Handler = new CIdentClient(Client);
g_Bouncer->RegisterSocket(Client, Handler);
}
};
class CIdentModule : public CModuleImplementation {
CIdentListener *m_Listener, *m_ListenerV6;
void Init(CCore* Root) {
CModuleImplementation::Init(Root);
g_Bouncer = Root;
m_Listener = new CIdentListener(AF_INET);
if (!m_Listener->IsValid()) {
g_Bouncer->Log("Could not create listener for identd.");
delete m_Listener;
m_Listener = NULL;
}
g_Bouncer->Log("Created IPv4 identd listener.");
#ifdef HAVE_IPV6
m_ListenerV6 = new CIdentListener(AF_INET6);
if (!m_ListenerV6->IsValid()) {
delete m_ListenerV6;
m_ListenerV6 = NULL;
} else {
g_Bouncer->Log("Created IPv6 identd listener.");
}
#endif
}
~CIdentModule(void) {
const socket_t *SocketPv;
if (m_Listener != NULL) {
g_Bouncer->Log("Destroying IPv4 identd-listener.");
m_Listener->Destroy();
}
#ifdef HAVE_IPV6
if (m_ListenerV6 != NULL) {
m_ListenerV6->Destroy();
g_Bouncer->Log("Destroying IPv4 identd-listener.");
}
#endif
while ((SocketPv = g_Bouncer->GetSocketByClass("CIdentClient", 0)) != NULL) {
SocketPv->Events->Destroy();
}
}
};
extern "C" EXPORT CModuleFar *bncGetObject(void) {
return (CModuleFar *)new CIdentModule();
}
extern "C" EXPORT int bncGetInterfaceVersion(void) {
return INTERFACEVERSION;
}
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