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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
*
* 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/>.
*/
/* $ModDesc: Allows for hashed oper passwords */
/* $ModDep: m_hash.h */
#include "inspircd.h"
#include "m_hash.h"
typedef std::map<irc::string, Module*> hashymodules;
/* Handle /MKPASSWD
*/
class CommandMkpasswd : public Command
{
Module* Sender;
hashymodules &hashers;
std::deque<std::string> &names;
public:
CommandMkpasswd (InspIRCd* Instance, Module* S, hashymodules &h, std::deque<std::string> &n)
: Command(Instance,"MKPASSWD", 0, 2), Sender(S), hashers(h), names(n)
{
this->source = "m_password_hash.so";
syntax = "<hashtype> <any-text>";
}
void MakeHash(User* user, const char* algo, const char* stuff)
{
/* Lets see if they gave us an algorithm which has been implemented */
hashymodules::iterator x = hashers.find(algo);
if (x != hashers.end())
{
/* Yup, reset it first (Always ALWAYS do this) */
HashResetRequest(Sender, x->second).Send();
/* Now attempt to generate a hash */
user->WriteServ("NOTICE %s :%s hashed password for %s is %s",user->nick.c_str(), algo, stuff, HashSumRequest(Sender, x->second, stuff).Send() );
}
else if (names.empty())
{
/* same idea as bug #569 */
user->WriteServ("NOTICE %s :No hash provider modules are loaded", user->nick.c_str());
}
else
{
/* I dont do flying, bob. */
user->WriteServ("NOTICE %s :Unknown hash type, valid hash types are: %s", user->nick.c_str(), irc::stringjoiner(", ", names, 0, names.size() - 1).GetJoined().c_str() );
}
}
CmdResult Handle (const std::vector<std::string>& parameters, User *user)
{
MakeHash(user, parameters[0].c_str(), parameters[1].c_str());
// this hashing could take some time, increasing server load.
// Slow down the user if they are trying to flood mkpasswd requests
user->IncreasePenalty(5);
return CMD_LOCALONLY;
}
};
class ModuleOperHash : public Module
{
CommandMkpasswd* mycommand;
hashymodules hashers; /* List of modules which implement HashRequest */
std::deque<std::string> names; /* Module names which implement HashRequest */
bool diduseiface; /* If we've called UseInterface yet. */
public:
ModuleOperHash(InspIRCd* Me)
: Module(Me)
{
diduseiface = false;
/* Read the config file first */
// Conf = NULL;
OnRehash(NULL);
/* Find all modules which implement the interface 'HashRequest' */
modulelist* ml = ServerInstance->Modules->FindInterface("HashRequest");
/* Did we find any modules? */
if (ml)
{
/* Yes, enumerate them all to find out the hashing algorithm name */
for (modulelist::iterator m = ml->begin(); m != ml->end(); m++)
{
/* Make a request to it for its name, its implementing
* HashRequest so we know its safe to do this
*/
std::string name = HashNameRequest(this, *m).Send();
/* Build a map of them */
hashers[name.c_str()] = *m;
names.push_back(name);
}
/* UseInterface doesn't do anything if there are no providers, so we'll have to call it later if a module gets loaded later on. */
ServerInstance->Modules->UseInterface("HashRequest");
diduseiface = true;
}
mycommand = new CommandMkpasswd(ServerInstance, this, hashers, names);
ServerInstance->AddCommand(mycommand);
Implementation eventlist[] = { I_OnPassCompare, I_OnLoadModule };
ServerInstance->Modules->Attach(eventlist, this, 2);
}
virtual ~ModuleOperHash()
{
if (diduseiface) ServerInstance->Modules->DoneWithInterface("HashRequest");
}
virtual void OnLoadModule(Module* mod, const std::string& name)
{
if (ServerInstance->Modules->ModuleHasInterface(mod, "HashRequest"))
{
ServerInstance->Logs->Log("m_password-hash",DEBUG, "Post-load registering hasher: %s", name.c_str());
std::string sname = HashNameRequest(this, mod).Send();
hashers[sname.c_str()] = mod;
names.push_back(sname);
if (!diduseiface)
{
ServerInstance->Modules->UseInterface("HashRequest");
diduseiface = true;
}
}
}
virtual int OnPassCompare(Extensible* ex, const std::string &data, const std::string &input, const std::string &hashtype)
{
/* First, lets see what hash theyre using on this oper */
hashymodules::iterator x = hashers.find(hashtype.c_str());
/* Is this a valid hash name? (case insensitive) */
if (x != hashers.end())
{
/* Reset the hashing module */
HashResetRequest(this, x->second).Send();
/* Compare the hash in the config to the generated hash */
if (!strcasecmp(data.c_str(), HashSumRequest(this, x->second, input.c_str()).Send()))
return 1;
/* No match, and must be hashed, forbid */
else return -1;
}
/* Not a hash, fall through to strcmp in core */
return 0;
}
virtual Version GetVersion()
{
return Version("$Id$",VF_VENDOR,API_VERSION);
}
};
MODULE_INIT(ModuleOperHash)
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