+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2006 Craig Edwards <craigedwards@brainbox.cc>
+ *
+ * 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"
+
+/* $ModDesc: Provides support for hiding oper status with user mode +H */
+
+/** Handles user mode +H
+ */
+class HideOper : public SimpleUserModeHandler
+{
+ public:
+ size_t opercount;
+
+ HideOper(Module* Creator) : SimpleUserModeHandler(Creator, "hideoper", 'H')
+ , opercount(0)
+ {
+ oper = true;
+ }
+
+ ModeAction OnModeChange(User* source, User* dest, Channel* channel, std::string& parameter, bool adding)
+ {
+ if (SimpleUserModeHandler::OnModeChange(source, dest, channel, parameter, adding) == MODEACTION_DENY)
+ return MODEACTION_DENY;
+
+ if (adding)
+ opercount++;
+ else
+ opercount--;
+
+ return MODEACTION_ALLOW;
+ }
+};
+
+class ModuleHideOper : public Module
+{
+ HideOper hm;
+ bool active;
+ public:
+ ModuleHideOper()
+ : hm(this)
+ , active(false)
+ {
+ }
+
+ void init()
+ {
+ ServerInstance->Modules->AddService(hm);
+ Implementation eventlist[] = { I_OnWhoisLine, I_OnSendWhoLine, I_OnStats, I_OnNumeric, I_OnUserQuit };
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+ }
+
+
+ virtual ~ModuleHideOper()
+ {
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version("Provides support for hiding oper status with user mode +H", VF_VENDOR);
+ }
+
+ void OnUserQuit(User* user, const std::string&, const std::string&)
+ {
+ if (user->IsModeSet('H'))
+ hm.opercount--;
+ }
+
+ ModResult OnNumeric(User* user, unsigned int numeric, const std::string& text)
+ {
+ if (numeric != 252 || active || user->HasPrivPermission("users/auspex"))
+ return MOD_RES_PASSTHRU;
+
+ // If there are no visible operators then we shouldn't send the numeric.
+ size_t opercount = ServerInstance->Users->all_opers.size() - hm.opercount;
+ if (opercount)
+ {
+ active = true;
+ user->WriteNumeric(252, "%s %lu :operator(s) online", user->nick.c_str(), opercount);
+ active = false;
+ }
+ return MOD_RES_DENY;
+ }
+
+ ModResult OnWhoisLine(User* user, User* dest, int &numeric, std::string &text)
+ {
+ /* Dont display numeric 313 (RPL_WHOISOPER) if they have +H set and the
+ * person doing the WHOIS is not an oper
+ */
+ if (numeric != 313)
+ return MOD_RES_PASSTHRU;
+
+ if (!dest->IsModeSet('H'))
+ return MOD_RES_PASSTHRU;
+
+ if (!user->HasPrivPermission("users/auspex"))
+ return MOD_RES_DENY;
+
+ return MOD_RES_PASSTHRU;
+ }
+
+ void OnSendWhoLine(User* source, const std::vector<std::string>& params, User* user, std::string& line)
+ {
+ if (user->IsModeSet('H') && !source->HasPrivPermission("users/auspex"))
+ {
+ // hide the "*" that marks the user as an oper from the /WHO line
+ std::string::size_type spcolon = line.find(" :");
+ if (spcolon == std::string::npos)
+ return; // Another module hid the user completely
+ std::string::size_type sp = line.rfind(' ', spcolon-1);
+ std::string::size_type pos = line.find('*', sp);
+ if (pos != std::string::npos)
+ line.erase(pos, 1);
+ // hide the line completely if doing a "/who * o" query
+ if (params.size() > 1 && params[1].find('o') != std::string::npos)
+ line.clear();
+ }
+ }
+
+ ModResult OnStats(char symbol, User* user, string_list &results)
+ {
+ if (symbol != 'P')
+ return MOD_RES_PASSTHRU;
+
+ unsigned int count = 0;
+ for (std::list<User*>::const_iterator i = ServerInstance->Users->all_opers.begin(); i != ServerInstance->Users->all_opers.end(); ++i)
+ {
+ User* oper = *i;
+ if (!ServerInstance->ULine(oper->server) && (IS_OPER(user) || !oper->IsModeSet('H')))
+ {
+ results.push_back(ServerInstance->Config->ServerName+" 249 " + user->nick + " :" + oper->nick + " (" + oper->ident + "@" + oper->dhost + ") Idle: " +
+ (IS_LOCAL(oper) ? ConvToStr(ServerInstance->Time() - oper->idle_lastmsg) + " secs" : "unavailable"));
+ count++;
+ }
+ }
+ results.push_back(ServerInstance->Config->ServerName+" 249 "+user->nick+" :"+ConvToStr(count)+" OPER(s)");
+
+ return MOD_RES_DENY;
+ }
+};
+
+
+MODULE_INIT(ModuleHideOper)