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/** |
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* identify.C: This file contains code for the NickServ IDENTIFY and LOGIN functions. |
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* |
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* Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team |
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* Rights to this code are as documented in COPYING. |
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* |
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* |
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* Portions of this file were derived from sources bearing the following license: |
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* Copyright © 2005-2006 William Pitcock, et al. |
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* Rights to this code are as documented in doc/pod/license.pod. |
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* |
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* $Id: identify.C,v 1.9 2007-09-16 18:54:43 pippijn Exp $ |
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*/ |
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|
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#include "atheme.h" |
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#include <util/numeric.h> |
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#include <libermyth.h> |
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#include <ermyth/module.h> |
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#include <account/mychan.h> |
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#include <account/chanacs.h> |
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#include <account/mynick.h> |
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#include <account/myuser.h> |
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|
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/* Check whether we are compiling IDENTIFY or LOGIN */ |
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#ifdef NICKSERV_LOGIN |
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#define COMMAND_UC "LOGIN" |
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#define COMMAND_LC "login" |
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#else |
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#define COMMAND_UC "IDENTIFY" |
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#define COMMAND_LC "identify" |
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#endif |
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|
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static char const rcsid[] = "$Id: identify.C,v 1.9 2007-09-16 18:54:43 pippijn Exp $"; |
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|
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REGISTER_MODULE ("nickserv/" COMMAND_LC, false, "The Ermyth Team <http://ermyth.xinutec.org>"); |
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|
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static void ns_cmd_login (sourceinfo_t *si, int parc, char *parv[]); |
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|
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#ifdef NICKSERV_LOGIN |
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command_t const ns_login = { "LOGIN", N_("Authenticates to a services account."), AC_NONE, 2, ns_cmd_login }; |
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#else |
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command_t const ns_identify = { "IDENTIFY", N_("Identifies to services for a nickname."), AC_NONE, 2, ns_cmd_login }; |
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command_t const ns_id = { "ID", N_("Alias for IDENTIFY"), AC_NONE, 2, ns_cmd_login }; |
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#endif |
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|
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E cmdvec ns_cmdtree; |
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E helpvec ns_helptree; |
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|
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bool |
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_modinit (module *m) |
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{ |
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#ifdef NICKSERV_LOGIN |
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ns_cmdtree << ns_login; |
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help_addentry (ns_helptree, "LOGIN", "help/nickserv/login", NULL); |
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#else |
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ns_cmdtree << ns_identify; |
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ns_cmdtree << ns_id; |
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help_addentry (ns_helptree, "IDENTIFY", "help/nickserv/identify", NULL); |
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help_addentry (ns_helptree, "ID", "help/nickserv/identify", NULL); |
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#endif |
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|
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return true; |
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} |
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|
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void |
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_moddeinit () |
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{ |
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#ifdef NICKSERV_LOGIN |
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ns_cmdtree >> ns_login; |
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help_delentry (ns_helptree, "LOGIN"); |
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#else |
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ns_cmdtree >> ns_identify; |
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ns_cmdtree >> ns_id; |
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help_delentry (ns_helptree, "IDENTIFY"); |
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help_delentry (ns_helptree, "ID"); |
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#endif |
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} |
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|
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static void |
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ns_cmd_login (sourceinfo_t *si, int parc, char *parv[]) |
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{ |
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user_t *u = si->su; |
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myuser_t *mu; |
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mynick_t *mn; |
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chanuser_t *cu; |
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chanacs_t *ca; |
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node_t *n; |
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char *target = parv[0]; |
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char *password = parv[1]; |
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char buf[BUFSIZE], strfbuf[32]; |
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char lau[BUFSIZE], lao[BUFSIZE]; |
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struct tm tm; |
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metadata *md_failnum; |
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|
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if (si->su == NULL) |
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{ |
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command_fail (si, fault::noprivs, _("\2%s\2 can only be executed via IRC."), COMMAND_UC); |
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return; |
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} |
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|
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#ifndef NICKSERV_LOGIN |
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if (!nicksvs.no_nick_ownership && target && !password) |
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{ |
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password = target; |
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target = si->su->nick; |
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} |
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#endif |
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|
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if (!target || !password) |
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{ |
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command_fail (si, fault::needmoreparams, STR_INSUFFICIENT_PARAMS, COMMAND_UC); |
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command_fail (si, fault::needmoreparams, nicksvs.no_nick_ownership ? "Syntax: " COMMAND_UC " <account> <password>" : "Syntax: " COMMAND_UC " [nick] <password>"); |
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return; |
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} |
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|
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if (nicksvs.no_nick_ownership) |
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mu = myuser_t::find (target); |
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else |
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{ |
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mn = mynick_t::find (target); |
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mu = mn != NULL ? mn->owner : NULL; |
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} |
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|
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if (!mu) |
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{ |
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command_fail (si, fault::nosuch_target, _("\2%s\2 is not a registered nickname."), target); |
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return; |
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} |
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|
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if (mu->find_metadata ("private:freeze:freezer")) |
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{ |
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command_fail (si, fault::authfail, nicksvs.no_nick_ownership ? "You cannot login as \2%s\2 because the account has been frozen." : "You cannot identify to \2%s\2 because the nickname has been frozen.", mu->name); |
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logcommand (si, CMDLOG_LOGIN, "failed " COMMAND_UC " to %s (frozen)", mu->name); |
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return; |
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} |
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|
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if (u->myuser == mu) |
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{ |
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command_fail (si, fault::nochange, _("You are already logged in as \2%s\2."), u->myuser->name); |
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return; |
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} |
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else if (u->myuser != NULL && !si->service->cmdtree->find ("LOGOUT")) |
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{ |
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command_fail (si, fault::alreadyexists, _("You are already logged in as \2%s\2."), u->myuser->name); |
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return; |
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} |
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else if (u->myuser != NULL && phandler->ircd_on_logout (u->nick, u->myuser->name, NULL)) |
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/* logout killed the user... */ |
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return; |
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|
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/* we use this in both cases, so set it up here. may be NULL. */ |
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md_failnum = mu->find_metadata ("private:loginfail:failnum"); |
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|
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if (mu->verify_password (password)) |
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{ |
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if (mu->logins.size () >= me.maxlogins) |
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{ |
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command_fail (si, fault::toomany, _("There are already \2%d\2 sessions logged in to \2%s\2 (maximum allowed: %d)."), mu->logins.size (), mu->name, me.maxlogins); |
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logcommand (si, CMDLOG_LOGIN, "failed " COMMAND_UC " to %s (too many logins)", mu->name); |
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return; |
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} |
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|
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/* if they are identified to another account, nuke their session first */ |
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if (u->myuser) |
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{ |
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myuser_t::login_vector::iterator it, it_end; |
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u->myuser->lastlogin = NOW; |
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for (it = u->myuser->logins.begin (), it_end = u->myuser->logins.end (); it != it_end; ++it) |
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{ |
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if (*it == u) |
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{ |
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u->myuser->logins.erase (u); |
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break; |
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} |
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} |
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u->myuser = NULL; |
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} |
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|
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if (is_soper (mu)) |
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snoop ("SOPER: \2%s\2 as \2%s\2", u->nick, mu->name); |
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|
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mu->notice (nicksvs.nick, "%s!%s@%s has just authenticated as you (%s)", u->nick, u->user, u->vhost, mu->name); |
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|
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u->myuser = mu; |
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mu->logins.insert (u); |
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|
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/* keep track of login address for users */ |
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strlcpy (lau, u->user, BUFSIZE); |
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strlcat (lau, "@", BUFSIZE); |
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strlcat (lau, u->vhost, BUFSIZE); |
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mu->add_metadata ("private:host:vhost", lau); |
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|
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/* and for opers */ |
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strlcpy (lao, u->user, BUFSIZE); |
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strlcat (lao, "@", BUFSIZE); |
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strlcat (lao, u->host, BUFSIZE); |
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mu->add_metadata ("private:host:actual", lao); |
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|
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logcommand (si, CMDLOG_LOGIN, COMMAND_UC); |
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|
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command_success_nodata (si, nicksvs.no_nick_ownership ? "You are now logged in as \2%s\2." : "You are now identified for \2%s\2.", u->myuser->name); |
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|
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/* check for failed attempts and let them know */ |
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if (md_failnum && (atoi (md_failnum->value) > 0)) |
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{ |
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metadata *md_failtime, *md_failaddr; |
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time_t ts; |
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|
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tm = *localtime (&mu->lastlogin); |
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strftime (strfbuf, sizeof (strfbuf) - 1, "%b %d %H:%M:%S %Y", &tm); |
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|
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command_success_nodata (si, _("\2%d\2 failed %s since %s."), atoi (md_failnum->value), (atoi (md_failnum->value) == 1) ? "login" : "logins", strfbuf); |
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|
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md_failtime = mu->find_metadata ("private:loginfail:lastfailtime"); |
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ts = atol (md_failtime->value); |
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md_failaddr = mu->find_metadata ("private:loginfail:lastfailaddr"); |
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|
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tm = *localtime (&ts); |
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strftime (strfbuf, sizeof (strfbuf) - 1, "%b %d %H:%M:%S %Y", &tm); |
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|
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command_success_nodata (si, _("Last failed attempt from: \2%s\2 on %s."), md_failaddr->value, strfbuf); |
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|
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mu->del_metadata ("private:loginfail:failnum"); /* md_failnum now invalid */ |
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mu->del_metadata ("private:loginfail:lastfailtime"); |
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mu->del_metadata ("private:loginfail:lastfailaddr"); |
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} |
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|
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mu->lastlogin = NOW; |
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mn = mynick_t::find (u->nick); |
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if (mn != NULL && mn->owner == mu) |
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mn->lastseen = NOW; |
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|
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/* XXX: ircd_on_login supports hostmasking, we just dont have it yet. */ |
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/* don't allow them to join regonly chans until their |
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* email is verified */ |
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if (!(mu->flags & MU_WAITAUTH)) |
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phandler->ircd_on_login (si->su->nick, mu->name, NULL); |
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|
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u->callback.identify (u); |
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|
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/* now we get to check for xOP */ |
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/* we don't check for host access yet (could match different |
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* entries because of services cloaks) */ |
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LIST_FOREACH (n, mu->chanacs.head) |
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{ |
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ca = (chanacs_t *) n->data; |
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|
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cu = chanuser_find (ca->mychan->chan, u); |
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if (cu && chansvs.me != NULL) |
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{ |
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if (ca->level & CA_AKICK && !(ca->level & CA_REMOVE)) |
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{ |
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/* Stay on channel if this would empty it -- jilles */ |
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if (ca->mychan->chan->nummembers <= (ca->mychan->flags & MC_GUARD ? 2 : 1)) |
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{ |
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ca->mychan->flags |= MC_INHABIT; |
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if (!(ca->mychan->flags & MC_GUARD)) |
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join (cu->chan->name, chansvs.nick); |
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} |
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ban (chansvs.me->me, ca->mychan->chan, u); |
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remove_ban_exceptions (chansvs.me->me, ca->mychan->chan, u); |
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phandler->kick (chansvs.nick, ca->mychan->name, u->nick, "User is banned from this channel"); |
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continue; |
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} |
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|
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if (ca->level & CA_USEDUPDATE) |
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ca->mychan->used = NOW; |
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|
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if (ca->mychan->flags & MC_NOOP || mu->flags & MU_NOOP) |
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continue; |
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|
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if (ircd->uses_owner && !(cu->modes & ircd->owner_mode) && ca->level & CA_AUTOOP && ca->myuser->should_owner (ca->mychan)) |
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{ |
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modestack_mode_param (chansvs.nick, ca->mychan->chan, MTYPE_ADD, ircd->owner_mchar[1], CLIENT_NAME (u)); |
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cu->modes |= ircd->owner_mode; |
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} |
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|
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if (ircd->uses_protect && !(cu->modes & ircd->protect_mode) && ca->level & CA_AUTOOP && ca->myuser->should_protect (ca->mychan)) |
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{ |
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modestack_mode_param (chansvs.nick, ca->mychan->chan, MTYPE_ADD, ircd->protect_mchar[1], CLIENT_NAME (u)); |
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cu->modes |= ircd->protect_mode; |
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} |
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|
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if (!(cu->modes & CMODE_OP) && ca->level & CA_AUTOOP) |
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{ |
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modestack_mode_param (chansvs.nick, ca->mychan->chan, MTYPE_ADD, 'o', CLIENT_NAME (u)); |
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cu->modes |= CMODE_OP; |
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} |
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|
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if (ircd->uses_halfops && !(cu->modes & (CMODE_OP | ircd->halfops_mode)) && ca->level & CA_AUTOHALFOP) |
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{ |
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modestack_mode_param (chansvs.nick, ca->mychan->chan, MTYPE_ADD, 'h', CLIENT_NAME (u)); |
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cu->modes |= ircd->halfops_mode; |
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} |
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|
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if (!(cu->modes & (CMODE_OP | ircd->halfops_mode | CMODE_VOICE)) && ca->level & CA_AUTOVOICE) |
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{ |
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modestack_mode_param (chansvs.nick, ca->mychan->chan, MTYPE_ADD, 'v', CLIENT_NAME (u)); |
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cu->modes |= CMODE_VOICE; |
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} |
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} |
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} |
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|
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return; |
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} |
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|
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logcommand (si, CMDLOG_LOGIN, "failed " COMMAND_UC " to %s (bad password)", mu->name); |
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|
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command_fail (si, fault::authfail, _("Invalid password for \2%s\2."), mu->name); |
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|
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/* record the failed attempts */ |
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/* note that we reuse this buffer later when warning opers about failed logins */ |
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snprintf (buf, sizeof buf, "%s!%s@%s", u->nick, u->user, u->vhost); |
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|
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/* increment fail count */ |
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if (md_failnum && (atoi (md_failnum->value) > 0)) |
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md_failnum = mu->add_metadata ("private:loginfail:failnum", itoa (atoi (md_failnum->value) + 1)); |
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else |
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md_failnum = mu->add_metadata ("private:loginfail:failnum", "1"); |
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mu->add_metadata ("private:loginfail:lastfailaddr", buf); |
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mu->add_metadata ("private:loginfail:lastfailtime", itoa (NOW)); |
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|
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if (atoi (md_failnum->value) == 10) |
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{ |
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time_t ts = NOW; |
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tm = *localtime (&ts); |
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strftime (strfbuf, sizeof (strfbuf) - 1, "%b %d %H:%M:%S %Y", &tm); |
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|
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wallops ("Warning: Numerous failed login attempts to \2%s\2. Last attempt received from \2%s\2 on %s.", mu->name, buf, strfbuf); |
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} |
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} |
