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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2009 InspIRCd Development Team
* See: http://wiki.inspircd.org/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "hashcomp.h"
bool OneOfMatches(const char* host, const char* ip, const char* hostlist);
/** Handle /OPER. These command handlers can be reloaded by the core,
* and handle basic RFC1459 commands. Commands within modules work
* the same way, however, they can be fully unloaded, where these
* may not.
*/
class CommandOper : public Command
{
public:
/** Constructor for oper.
*/
CommandOper ( Module* parent) : Command(parent,"OPER",2,2) { syntax = "<username> <password>"; }
/** Handle command.
* @param parameters The parameters to the comamnd
* @param pcnt The number of parameters passed to teh command
* @param user The user issuing the command
* @return A value from CmdResult to indicate command success or failure.
*/
CmdResult Handle(const std::vector<std::string>& parameters, User *user);
};
bool OneOfMatches(const char* host, const char* ip, const char* hostlist)
{
std::stringstream hl(hostlist);
std::string xhost;
while (hl >> xhost)
{
if (InspIRCd::Match(host, xhost, ascii_case_insensitive_map) || InspIRCd::MatchCIDR(ip, xhost, ascii_case_insensitive_map))
{
return true;
}
}
return false;
}
CmdResult CommandOper::Handle (const std::vector<std::string>& parameters, User *user)
{
char LoginName[MAXBUF];
char Password[MAXBUF];
char OperType[MAXBUF];
char TypeName[MAXBUF];
char HostName[MAXBUF];
char ClassName[MAXBUF];
char TheHost[MAXBUF];
char TheIP[MAXBUF];
char HashType[MAXBUF];
int j;
bool found = false;
bool type_invalid = false;
bool match_login = false;
bool match_pass = false;
bool match_hosts = false;
snprintf(TheHost,MAXBUF,"%s@%s",user->ident.c_str(),user->host.c_str());
snprintf(TheIP, MAXBUF,"%s@%s",user->ident.c_str(),user->GetIPString());
for (int i = 0; i < ServerInstance->Config->ConfValueEnum("oper"); i++)
{
ServerInstance->Config->ConfValue("oper", "name", i, LoginName, MAXBUF);
ServerInstance->Config->ConfValue("oper", "password", i, Password, MAXBUF);
ServerInstance->Config->ConfValue("oper", "type", i, OperType, MAXBUF);
ServerInstance->Config->ConfValue("oper", "host", i, HostName, MAXBUF);
ServerInstance->Config->ConfValue("oper", "hash", i, HashType, MAXBUF);
match_login = (LoginName == parameters[0]);
match_pass = !ServerInstance->PassCompare(user, Password, parameters[1], HashType);
match_hosts = OneOfMatches(TheHost,TheIP,HostName);
if (match_login && match_pass && match_hosts)
{
type_invalid = true;
for (j =0; j < ServerInstance->Config->ConfValueEnum("type"); j++)
{
ServerInstance->Config->ConfValue("type", "name", j, TypeName, MAXBUF);
ServerInstance->Config->ConfValue("type", "class", j, ClassName, MAXBUF);
if (!strcmp(TypeName,OperType))
{
/* found this oper's opertype */
if (!ServerInstance->IsNick(TypeName, ServerInstance->Config->Limits.NickMax))
{
user->WriteNumeric(491, "%s :Invalid oper type (oper types must follow the same syntax as nicknames)",user->nick.c_str());
ServerInstance->SNO->WriteToSnoMask('o',"CONFIGURATION ERROR! Oper type '%s' contains invalid characters",OperType);
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s: credentials valid, but oper type erroneous.", user->nick.c_str(), user->ident.c_str(), user->host.c_str());
return CMD_FAILURE;
}
ServerInstance->Config->ConfValue("type","host", j, HostName, MAXBUF);
if (*HostName)
user->ChangeDisplayedHost(HostName);
if (*ClassName)
{
user->SetClass(ClassName);
user->CheckClass();
}
found = true;
type_invalid = false;
break;
}
}
}
if (match_login || found)
break;
}
if (found)
{
/* correct oper credentials */
user->Oper(OperType, LoginName);
}
else
{
char broadcast[MAXBUF];
if (!type_invalid)
{
std::string fields;
if (!match_login)
fields.append("login ");
else
{
if (!match_pass)
fields.append("password ");
if (!match_hosts)
fields.append("hosts");
}
// tell them they suck, and lag them up to help prevent brute-force attacks
user->WriteNumeric(491, "%s :Invalid oper credentials",user->nick.c_str());
user->IncreasePenalty(10);
snprintf(broadcast, MAXBUF, "WARNING! Failed oper attempt by %s!%s@%s using login '%s': The following fields do not match: %s", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str(), fields.c_str());
ServerInstance->SNO->WriteToSnoMask('o',std::string(broadcast));
ServerInstance->PI->SendSNONotice("o", std::string("OPER: ") + broadcast);
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s using login '%s': The following fields did not match: %s", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str(), fields.c_str());
return CMD_FAILURE;
}
else
{
user->WriteNumeric(491, "%s :Your oper block does not have a valid opertype associated with it",user->nick.c_str());
snprintf(broadcast, MAXBUF, "CONFIGURATION ERROR! Oper block '%s': missing OperType %s",parameters[0].c_str(),OperType);
ServerInstance->SNO->WriteToSnoMask('o', std::string(broadcast));
ServerInstance->Logs->Log("OPER",DEFAULT,"OPER: Failed oper attempt by %s!%s@%s using login '%s': credentials valid, but oper type nonexistent.", user->nick.c_str(), user->ident.c_str(), user->host.c_str(), parameters[0].c_str());
return CMD_FAILURE;
}
}
return CMD_SUCCESS;
}
COMMAND_INIT(CommandOper)
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