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/* +------------------------------------+
* | Inspire Internet Relay Chat Daemon |
* +------------------------------------+
*
* InspIRCd: (C) 2002-2007 InspIRCd Development Team
* See: http://www.inspircd.org/wiki/index.php/Credits
*
* This program is free but copyrighted software; see
* the file COPYING for details.
*
* ---------------------------------------------------
*/
#include "inspircd.h"
#include "configreader.h"
#include "users.h"
#include "modules.h"
#include "wildcard.h"
#include "commands/cmd_who.h"
/* get the last 'visible' chan of a user */
static char *getlastchanname(userrec *u)
{
UCListIter i = u->chans.begin();
if (i != u->chans.end())
{
if (!i->first->IsModeSet('s'))
return i->first->name;
}
return "*";
}
bool cmd_who::whomatch(userrec* user, const char* matchtext)
{
bool realhost = false;
bool realname = false;
bool positive = true;
bool metadata = false;
bool ident = false;
bool away = false;
bool port = false;
char* dummy = NULL;
if (user->registered != REG_ALL)
return false;
if (opt_local && !IS_LOCAL(user))
return false;
else if (opt_far && IS_LOCAL(user))
return false;
if (opt_mode)
{
for (const char* n = matchtext; *n; n++)
{
if (*n == '+')
{
positive = true;
continue;
}
else if (*n == '-')
{
positive = false;
continue;
}
if (user->IsModeSet(*n) != positive)
return false;
}
return true;
}
else
{
if (opt_metadata)
metadata = user->GetExt(matchtext, dummy);
else
{
if (opt_realname)
realname = match(user->fullname, matchtext);
else
{
if (opt_showrealhost)
realhost = match(user->host, matchtext);
else
{
if (opt_ident)
ident = match(user->ident, matchtext);
else
{
if (opt_port)
{
irc::portparser portrange(matchtext, false);
long portno = -1;
while ((portno = portrange.GetToken()))
if (portno == user->GetPort())
port = true;
}
else
{
if (opt_away)
away = match(user->awaymsg, matchtext);
}
}
}
}
}
return ((port) || (away) || (ident) || (metadata) || (realname) || (realhost) || (match(user->dhost, matchtext)) || (match(user->nick, matchtext)) || (match(user->server, matchtext)));
}
}
extern "C" DllExport command_t* init_command(InspIRCd* Instance)
{
return new cmd_who(Instance);
}
bool cmd_who::CanView(chanrec* chan, userrec* user)
{
if (!user || !chan)
return false;
/* Execute items in fastest-to-execute first order */
/* Opers see all */
if (IS_OPER(user))
return true;
else if (!chan->IsModeSet('s') && !chan->IsModeSet('p'))
return true;
else if (chan->HasUser(user))
return true;
return false;
}
void cmd_who::SendWhoLine(userrec* user, const std::string &initial, chanrec* ch, userrec* u, std::vector<std::string> &whoresults)
{
std::string lcn = getlastchanname(u);
chanrec* chlast = ServerInstance->FindChan(lcn);
/* Not visible to this user */
if (u->Visibility && !u->Visibility->VisibleTo(user))
return;
std::string wholine = initial + (ch ? ch->name : lcn) + " " + u->ident + " " + (opt_showrealhost ? u->host : u->dhost) + " " +
((*ServerInstance->Config->HideWhoisServer && !IS_OPER(user)) ? ServerInstance->Config->HideWhoisServer : u->server) +
" " + u->nick + " ";
/* away? */
if (IS_AWAY(u))
{
wholine.append("G");
}
else
{
wholine.append("H");
}
/* oper? */
if (IS_OPER(u))
{
wholine.append("*");
}
wholine = wholine + (ch ? ch->GetPrefixChar(u) : (chlast ? chlast->GetPrefixChar(u) : "")) + " :0 " + u->fullname;
whoresults.push_back(wholine);
}
CmdResult cmd_who::Handle (const char** parameters, int pcnt, userrec *user)
{
/*
* XXX - RFC says:
* The <name> passed to WHO is matched against users' host, server, real
* name and nickname
* Currently, we support WHO #chan, WHO nick, WHO 0, WHO *, and the addition of a 'o' flag, as per RFC.
*/
/* WHO options */
opt_viewopersonly = false;
opt_showrealhost = false;
opt_unlimit = false;
opt_realname = false;
opt_mode = false;
opt_ident = false;
opt_metadata = false;
opt_port = false;
opt_away = false;
opt_local = false;
opt_far = false;
chanrec *ch = NULL;
std::vector<std::string> whoresults;
std::string initial = "352 " + std::string(user->nick) + " ";
const char* matchtext = NULL;
/* Change '0' into '*' so the wildcard matcher can grok it */
matchtext = parameters[0];
if (!strcmp(matchtext,"0"))
matchtext = "*";
if (pcnt > 1)
{
/* parse flags */
const char *iter = parameters[1];
while (*iter)
{
switch (*iter)
{
case 'o':
opt_viewopersonly = true;
break;
case 'h':
if (IS_OPER(user))
opt_showrealhost = true;
break;
case 'u':
if (IS_OPER(user))
opt_unlimit = true;
break;
case 'r':
opt_realname = true;
break;
case 'm':
opt_mode = true;
break;
case 'M':
opt_metadata = true;
break;
case 'i':
opt_ident = true;
break;
case 'p':
opt_port = true;
break;
case 'a':
opt_away = true;
break;
case 'l':
opt_local = true;
break;
case 'f':
opt_far = true;
break;
}
*iter++;
}
}
/* who on a channel? */
ch = ServerInstance->FindChan(matchtext);
if (ch)
{
if (CanView(ch,user))
{
bool inside = ch->HasUser(user);
/* who on a channel. */
CUList *cu = ch->GetUsers();
for (CUList::iterator i = cu->begin(); i != cu->end(); i++)
{
/* opers only, please */
if (opt_viewopersonly && !IS_OPER(i->first))
continue;
/* If we're not inside the channel, hide +i users */
if (i->first->IsModeSet('i') && !inside)
continue;
SendWhoLine(user, initial, ch, i->first, whoresults);
}
}
}
else
{
/* Match against wildcard of nick, server or host */
if (opt_viewopersonly)
{
/* Showing only opers */
for (std::vector<userrec*>::iterator i = ServerInstance->all_opers.begin(); i != ServerInstance->all_opers.end(); i++)
{
userrec* oper = *i;
if (whomatch(oper, matchtext))
{
if ((!oper->IsModeSet('i')) && (!IS_OPER(user)))
continue;
SendWhoLine(user, initial, NULL, oper, whoresults);
}
}
}
else
{
for (user_hash::iterator i = ServerInstance->clientlist->begin(); i != ServerInstance->clientlist->end(); i++)
{
if (whomatch(i->second, matchtext))
{
if ((i->second->IsModeSet('i')) && (!IS_OPER(user)))
continue;
SendWhoLine(user, initial, NULL, i->second, whoresults);
}
}
}
}
/* Send the results out */
if ((ServerInstance->Config->MaxWhoResults && (whoresults.size() <= (size_t)ServerInstance->Config->MaxWhoResults)) || opt_unlimit)
{
for (std::vector<std::string>::const_iterator n = whoresults.begin(); n != whoresults.end(); n++)
user->WriteServ(*n);
user->WriteServ("315 %s %s :End of /WHO list.",user->nick, *parameters[0] ? parameters[0] : "*");
return CMD_SUCCESS;
}
else
{
/* BZZT! Too many results. */
user->WriteServ("315 %s %s :Too many results",user->nick, parameters[0]);
return CMD_FAILURE;
}
}
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