2024-06-07 10:37:56 +01:00

131 lines
4.5 KiB
C++

/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
* Copyright (C) 2018, 2020-2023 Sadie Powell <sadie@witchery.services>
*
* 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/>.
*/
#pragma once
namespace Who
{
class EventListener;
class MatchEventListener;
class VisibleEventListener;
class Request;
}
class Who::EventListener
: public Events::ModuleEventListener
{
public:
EventListener(Module* mod, unsigned int eventprio = DefaultPriority)
: ModuleEventListener(mod, "event/who", eventprio)
{
}
/** Called when a result from WHO is about to be queued.
* @param request Details about the WHO request which caused this response.
* @param source The user who initiated this WHO request.
* @param user The user that this line of the WHO request is about.
* @param memb The channel membership of the user or the first visible membership if not targeted at a channel.
* @param numeric The numeric which will be sent in response to the request.
* @return MOD_RES_ALLOW to explicitly allow the response, MOD_RES_DENY to explicitly deny the
* response, or MOD_RES_PASSTHRU to let another module handle the event.
*/
virtual ModResult OnWhoLine(const Request& request, LocalUser* source, User* user, Membership* memb, Numeric::Numeric& numeric) = 0;
};
class Who::MatchEventListener
: public Events::ModuleEventListener
{
public:
MatchEventListener(Module* mod, unsigned int eventprio = DefaultPriority)
: ModuleEventListener(mod, "event/who-match", eventprio)
{
}
/** Called when a WHO request needs to check if a user matches it.
* @param request Details about the WHO request which caused this match attempt.
* @param source The user who initiated this WHO request.
* @param user The user to attempt to match the WHO request against.
* @return MOD_RES_ALLOW to explicitly allow the match, MOD_RES_DENY to explicitly deny the
* match, or MOD_RES_PASSTHRU to let another module handle the event.
*/
virtual ModResult OnWhoMatch(const Request& request, LocalUser* source, User* user) = 0;
};
class Who::VisibleEventListener
: public Events::ModuleEventListener
{
public:
VisibleEventListener(Module* mod, unsigned int eventprio = DefaultPriority)
: ModuleEventListener(mod, "event/who-visible", eventprio)
{
}
/** Called when a WHO request needs to check if a channel is visible.
* @param request Details about the WHO request which caused this match attempt.
* @param source The user who initiated this WHO request.
* @param memb The channel membership of the user to check the visibility of.
* @return MOD_RES_ALLOW to explicitly allow the match, MOD_RES_DENY to explicitly deny the
* match, or MOD_RES_PASSTHRU to let another module handle the event.
*/
virtual ModResult OnWhoVisible(const Request& request, LocalUser* source, Membership* memb) = 0;
};
class Who::Request
{
public:
/** The flags for matching users to include. */
CharState flags;
/** Whether we are matching using a wildcard or a flag. */
bool fuzzy_match = false;
/** The text to match against. */
std::string matchtext;
/** If the target was a channel then the matched channel */
Channel* matchchan = nullptr;
/** The WHO/WHOX responses we will send to the source. */
std::vector<Numeric::Numeric> results;
/** Whether the source requested a WHOX response. */
bool whox = false;
/** The fields to include in the WHOX response. */
CharState whox_fields;
/** A user specified label for the WHOX response. */
std::string whox_querytype;
/** Get the index in the response parameters for the different data fields
*
* The fields 'r' (realname) and 'd' (hops) will always be missing in a non-WHOX
* query, because WHOX splits them to 2 fields, where old WHO has them as one.
*
* @param flag The field name to look for
* @param out The index will be stored in this value
* @return True if the field is available, false otherwise
*/
virtual bool GetFieldIndex(char flag, size_t& out) const = 0;
protected:
Request() = default;
};