-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
*
- * InspIRCd: (C) 2002-2009 InspIRCd Development Team
- * See: http://wiki.inspircd.org/Credits
+ * Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
*
- * This program is free but copyrighted software; see
- * the file COPYING for details.
+ * This file is part of InspIRCd. InspIRCd 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.
*
- * ---------------------------------------------------
+ * 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, see <http://www.gnu.org/licenses/>.
*/
+
#include "inspircd.h"
#include "m_cap.h"
#include "account.h"
+#include "sasl.h"
+#include "ssl.h"
/* $ModDesc: Provides support for IRC Authentication Layer (aka: atheme SASL) via AUTHENTICATE. */
enum SaslState { SASL_INIT, SASL_COMM, SASL_DONE };
enum SaslResult { SASL_OK, SASL_FAIL, SASL_ABORT };
+static std::string sasl_target = "*";
+
+static void SendSASL(const parameterlist& params)
+{
+ if (!ServerInstance->PI->SendEncapsulatedData(params))
+ {
+ SASLFallback(NULL, params);
+ }
+}
+
/**
* Tracks SASL authentication state like charybdis does. --nenolod
*/
-class SaslAuthenticator : public classbase
+class SaslAuthenticator
{
private:
- InspIRCd *ServerInstance;
- Module *Creator;
std::string agent;
User *user;
SaslState state;
SaslResult result;
bool state_announced;
- public:
- SaslAuthenticator(User *user_, std::string method, InspIRCd *instance, Module *ctor)
- : ServerInstance(instance), Creator(ctor), user(user_), state(SASL_INIT), state_announced(false)
+ /* taken from m_services_account */
+ static bool ReadCGIIRCExt(const char* extname, User* user, std::string& out)
{
- this->user->Extend("sasl_authenticator", this);
+ ExtensionItem* wiext = ServerInstance->Extensions.GetItem(extname);
+ if (!wiext)
+ return false;
- std::deque<std::string> params;
+ if (wiext->creator->ModuleSourceFile != "m_cgiirc.so")
+ return false;
+
+ StringExtItem* stringext = static_cast<StringExtItem*>(wiext);
+ std::string* addr = stringext->get(user);
+ if (!addr)
+ return false;
+
+ out = *addr;
+ return true;
+ }
+
+
+ void SendHostIP()
+ {
+ std::string host, ip;
+
+ if (!ReadCGIIRCExt("cgiirc_webirc_hostname", user, host))
+ {
+ host = user->host;
+ }
+ if (!ReadCGIIRCExt("cgiirc_webirc_ip", user, ip))
+ {
+ ip = user->GetIPString();
+ }
+ else
+ {
+ /* IP addresses starting with a : on irc are a Bad Thing (tm) */
+ if (ip.c_str()[0] == ':')
+ ip.insert(ip.begin(),1,'0');
+ }
+
+ parameterlist params;
+ params.push_back(sasl_target);
+ params.push_back("SASL");
+ params.push_back(user->uuid);
params.push_back("*");
+ params.push_back("H");
+ params.push_back(host);
+ params.push_back(ip);
+
+ LocalUser* lu = IS_LOCAL(user);
+ if (lu)
+ {
+ // NOTE: SaslAuthenticator instances are only created for local
+ // users so this parameter will always be appended.
+ SocketCertificateRequest req(&lu->eh, ServerInstance->Modules->Find("m_sasl.so"));
+ params.push_back(req.cert ? "S" : "P");
+ }
+
+ SendSASL(params);
+ }
+
+ public:
+ SaslAuthenticator(User* user_, const std::string& method)
+ : user(user_), state(SASL_INIT), state_announced(false)
+ {
+ SendHostIP();
+
+ parameterlist params;
+ params.push_back(sasl_target);
params.push_back("SASL");
params.push_back(user->uuid);
params.push_back("*");
params.push_back("S");
params.push_back(method);
- ServerInstance->PI->SendEncapsulatedData(params);
+ if (method == "EXTERNAL" && IS_LOCAL(user_))
+ {
+ SocketCertificateRequest req(&((LocalUser*)user_)->eh, ServerInstance->Modules->Find("m_sasl.so"));
+ std::string fp = req.GetFingerprint();
+
+ if (fp.size())
+ params.push_back(fp);
+ }
+
+ SendSASL(params);
}
- SaslResult GetSaslResult(std::string &result_)
+ SaslResult GetSaslResult(const std::string &result_)
{
if (result_ == "F")
return SASL_FAIL;
}
/* checks for and deals with a state change. */
- SaslState ProcessInboundMessage(std::deque<std::string> &msg)
+ SaslState ProcessInboundMessage(const std::vector<std::string> &msg)
{
switch (this->state)
{
case SASL_INIT:
- this->agent = msg[2];
- this->user->Write("AUTHENTICATE %s", msg[5].c_str());
+ this->agent = msg[0];
this->state = SASL_COMM;
- break;
+ /* fall through */
case SASL_COMM:
- if (msg[2] != this->agent)
+ if (msg[0] != this->agent)
return this->state;
- if (msg[4] != "D")
- this->user->Write("AUTHENTICATE %s", msg[5].c_str());
- else
+ if (msg.size() < 4)
+ return this->state;
+
+ if (msg[2] == "C")
+ this->user->Write("AUTHENTICATE %s", msg[3].c_str());
+ else if (msg[2] == "D")
{
this->state = SASL_DONE;
- this->result = this->GetSaslResult(msg[5]);
+ this->result = this->GetSaslResult(msg[3]);
}
+ else if (msg[2] == "M")
+ this->user->WriteNumeric(908, "%s %s :are available SASL mechanisms", this->user->nick.c_str(), msg[3].c_str());
+ else
+ ServerInstance->Logs->Log("m_sasl", DEFAULT, "Services sent an unknown SASL message \"%s\" \"%s\"", msg[2].c_str(), msg[3].c_str());
break;
case SASL_DONE:
if (this->state != SASL_COMM)
return true;
- std::deque<std::string> params;
- params.push_back("*");
+ parameterlist params;
+ params.push_back(sasl_target);
params.push_back("SASL");
params.push_back(this->user->uuid);
params.push_back(this->agent);
params.insert(params.end(), parameters.begin(), parameters.end());
- ServerInstance->PI->SendEncapsulatedData(params);
+ SendSASL(params);
- if (parameters[0][0] == '*')
+ if (parameters[0].c_str()[0] == '*')
{
this->Abort();
return false;
this->state_announced = true;
}
-
- ~SaslAuthenticator()
- {
- this->user->Shrink("sasl_authenticator");
- this->AnnounceState();
- }
};
class CommandAuthenticate : public Command
{
- Module* Creator;
public:
- CommandAuthenticate (InspIRCd* Instance, Module* creator) : Command(Instance,"AUTHENTICATE", 0, 1, true), Creator(creator)
+ SimpleExtItem<SaslAuthenticator>& authExt;
+ GenericCap& cap;
+ CommandAuthenticate(Module* Creator, SimpleExtItem<SaslAuthenticator>& ext, GenericCap& Cap)
+ : Command(Creator, "AUTHENTICATE", 1), authExt(ext), cap(Cap)
{
- this->source = "m_sasl.so";
+ works_before_reg = true;
+ allow_empty_last_param = false;
}
CmdResult Handle (const std::vector<std::string>& parameters, User *user)
/* Only allow AUTHENTICATE on unregistered clients */
if (user->registered != REG_ALL)
{
- if (!user->GetExt("sasl"))
+ if (!cap.ext.get(user))
+ return CMD_FAILURE;
+
+ if (parameters[0].find(' ') != std::string::npos || parameters[0][0] == ':')
return CMD_FAILURE;
- SaslAuthenticator *sasl;
- if (!(user->GetExt("sasl_authenticator", sasl)))
- sasl = new SaslAuthenticator(user, parameters[0], ServerInstance, Creator);
+ SaslAuthenticator *sasl = authExt.get(user);
+ if (!sasl)
+ authExt.set(user, new SaslAuthenticator(user, parameters[0]));
else if (sasl->SendClientMessage(parameters) == false) // IAL abort extension --nenolod
- delete sasl;
+ {
+ sasl->AnnounceState();
+ authExt.unset(user);
+ }
}
return CMD_FAILURE;
}
};
-
-class ModuleSASL : public Module
+class CommandSASL : public Command
{
- CommandAuthenticate* sasl;
public:
-
- ModuleSASL(InspIRCd* Me)
- : Module(Me)
+ SimpleExtItem<SaslAuthenticator>& authExt;
+ CommandSASL(Module* Creator, SimpleExtItem<SaslAuthenticator>& ext) : Command(Creator, "SASL", 2), authExt(ext)
{
- Implementation eventlist[] = { I_OnEvent, I_OnUserRegister, I_OnPostConnect, I_OnUserDisconnect, I_OnCleanup };
- ServerInstance->Modules->Attach(eventlist, this, 5);
-
- sasl = new CommandAuthenticate(ServerInstance, this);
- ServerInstance->AddCommand(sasl);
-
- if (!ServerInstance->Modules->Find("m_services_account.so") || !ServerInstance->Modules->Find("m_cap.so"))
- ServerInstance->Logs->Log("m_sasl", DEFAULT, "WARNING: m_services_account.so and m_cap.so are not loaded! m_sasl.so will NOT function correctly until these two modules are loaded!");
+ this->flags_needed = FLAG_SERVERONLY; // should not be called by users
}
- virtual int OnUserRegister(User *user)
+ CmdResult Handle(const std::vector<std::string>& parameters, User *user)
{
- SaslAuthenticator *sasl_;
- if (user->GetExt("sasl_authenticator", sasl_))
+ User* target = ServerInstance->FindNick(parameters[1]);
+ if ((!target) || (IS_SERVER(target)))
{
- sasl_->Abort();
- delete sasl_;
- user->Shrink("sasl_authenticator");
+ ServerInstance->Logs->Log("m_sasl", DEBUG,"User not found in sasl ENCAP event: %s", parameters[1].c_str());
+ return CMD_FAILURE;
}
- return 0;
+ SaslAuthenticator *sasl = authExt.get(target);
+ if (!sasl)
+ return CMD_FAILURE;
+
+ SaslState state = sasl->ProcessInboundMessage(parameters);
+ if (state == SASL_DONE)
+ {
+ sasl->AnnounceState();
+ authExt.unset(target);
+ }
+ return CMD_SUCCESS;
}
- virtual void OnCleanup(int target_type, void *item)
+ RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
{
- if (target_type == TYPE_USER)
- OnUserDisconnect((User*)item);
+ return ROUTE_BROADCAST;
}
+};
- virtual void OnUserDisconnect(User *user)
+class ModuleSASL : public Module
+{
+ SimpleExtItem<SaslAuthenticator> authExt;
+ GenericCap cap;
+ CommandAuthenticate auth;
+ CommandSASL sasl;
+ public:
+ ModuleSASL()
+ : authExt("sasl_auth", this), cap(this, "sasl"), auth(this, authExt, cap), sasl(this, authExt)
{
- SaslAuthenticator *sasl_;
- if (user->GetExt("sasl_authenticator", sasl_))
- {
- delete sasl_;
- user->Shrink("sasl_authenticator");
- }
}
- virtual void OnPostConnect(User* user)
+ void init()
{
- if (!IS_LOCAL(user))
- return;
-
- std::string* str = NULL;
+ OnRehash(NULL);
+ Implementation eventlist[] = { I_OnEvent, I_OnUserConnect, I_OnRehash };
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
- if (user->GetExt("accountname", str))
- ServerInstance->PI->SendMetaData(user, TYPE_USER, "accountname", *str);
+ ServiceProvider* providelist[] = { &auth, &sasl, &authExt };
+ ServerInstance->Modules->AddServices(providelist, 3);
- return;
+ if (!ServerInstance->Modules->Find("m_services_account.so") || !ServerInstance->Modules->Find("m_cap.so"))
+ ServerInstance->Logs->Log("m_sasl", DEFAULT, "WARNING: m_services_account.so and m_cap.so are not loaded! m_sasl.so will NOT function correctly until these two modules are loaded!");
}
- virtual ~ModuleSASL()
+ void OnRehash(User*)
{
+ sasl_target = ServerInstance->Config->ConfValue("sasl")->getString("target", "*");
}
- virtual Version GetVersion()
+ void OnUserConnect(LocalUser *user)
{
- return Version("$Id$",VF_VENDOR,API_VERSION);
+ SaslAuthenticator *sasl_ = authExt.get(user);
+ if (sasl_)
+ {
+ sasl_->Abort();
+ authExt.unset(user);
+ }
}
- virtual void OnEvent(Event *ev)
+ Version GetVersion()
{
- GenericCapHandler(ev, "sasl", "sasl");
-
- if (ev->GetEventID() == "encap_received")
- {
- std::deque<std::string>* parameters = (std::deque<std::string>*)ev->GetData();
-
- if ((*parameters)[1] != "SASL")
- return;
-
- User* target = ServerInstance->FindNick((*parameters)[3]);
- if (!target)
- {
- ServerInstance->Logs->Log("m_sasl", DEBUG,"User not found in sasl ENCAP event: %s", (*parameters)[3].c_str());
- return;
- }
-
- SaslAuthenticator *sasl_;
- if (!target->GetExt("sasl_authenticator", sasl_))
- return;
+ return Version("Provides support for IRC Authentication Layer (aka: SASL) via AUTHENTICATE.", VF_VENDOR);
+ }
- SaslState state = sasl_->ProcessInboundMessage(*parameters);
- if (state == SASL_DONE)
- {
- delete sasl_;
- target->Shrink("sasl");
- }
- }
+ void OnEvent(Event &ev)
+ {
+ cap.HandleEvent(ev);
}
};
projects / user / henk / code / inspircd.git / blobdiff