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/*
* InspIRCd -- Internet Relay Chat Daemon
*
* Copyright (C) 2012-2014 Attila Molnar <attilamolnar@hush.com>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
*
* 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
/**
* Represents a member of a channel.
* A Membership object is created when a user joins a channel, and destroyed when a user leaves
* (via kick, part or quit) a channel.
* All prefix modes a member has is tracked by this object. Moreover, Memberships are Extensibles
* meaning modules can add arbitrary data to them using extensions (see m_delaymsg for an example).
*/
class CoreExport Membership : public Extensible, public intrusive_list_node<Membership>
{
public:
/** User on the channel
*/
User* const user;
/** Channel the user is on
*/
Channel* const chan;
/** List of prefix mode letters this member has,
* sorted by prefix rank, highest first
*/
std::string modes;
/** Constructor, sets the user and chan fields to the parameters, does NOT update any bookkeeping
* information in the User or the Channel.
* Call Channel::JoinUser() or ForceJoin() to make a user join a channel instead of constructing
* Membership objects directly.
*/
Membership(User* u, Channel* c) : user(u), chan(c) {}
/** Returns true if this member has a given prefix mode set
* @param m The prefix mode letter to check
* @return True if the member has the prefix mode set, false otherwise
*/
inline bool hasMode(char m) const
{
return modes.find(m) != std::string::npos;
}
/** Returns the rank of this member.
* The rank of a member is defined as the rank given by the 'strongest' prefix mode a
* member has. See the PrefixMode class description for more info.
* @return The rank of the member
*/
unsigned int getRank();
/** Add a prefix character to a user.
* Only the core should call this method, usually from
* within the mode parser or when the first user joins
* the channel (to grant the default privs to them)
* @param mh The mode handler of the prefix mode to associate
* @param adding True if adding the prefix, false when removing
* @return True if a change was made
*/
bool SetPrefix(PrefixMode* mh, bool adding);
/** Get the highest prefix this user has on the channel
* @return A character containing the highest prefix.
* If the user has no prefix, 0 is returned. If the user has multiple prefixes,
* the highest is returned. If you do not recognise the prefix character you
* can get, you can deal with it in a 'proportional' manner compared to known
* prefixes, using GetPrefixValue().
*/
char GetPrefixChar() const;
/** Return all prefix chars this member has.
* @return A list of all prefix characters. The prefixes will always
* be in rank order, greatest first, as certain IRC clients require
* this when multiple prefixes are used names lists.
*/
const char* GetAllPrefixChars() const;
};
template <typename T>
class InviteBase
{
protected:
/** List of pending Invitations
*/
intrusive_list<Invitation, T> invites;
public:
/** Remove and destruct all pending invitations this user or channel has.
* Must be called before the object is destroyed, also called when the TS of the channel is lowered.
*/
void ClearInvites();
friend class Invitation;
};
/**
* The Invitation class contains all data about a pending invitation.
* Invitation objects are referenced from the user and the channel they belong to.
*/
class CoreExport Invitation : public intrusive_list_node<Invitation, Channel>, public intrusive_list_node<Invitation, LocalUser>
{
/** Constructs an Invitation, only called by Create()
* @param c Channel the user is invited to
* @param u User being invited
* @param timeout Expiration time for this Invitation
*/
Invitation(Channel* c, LocalUser* u, time_t timeout) : user(u), chan(c), expiry(timeout) {}
public:
/** User the invitation is for
*/
LocalUser* const user;
/** Channel where the user is invited to
*/
Channel* const chan;
/** Timestamp when this Invitation expires or 0 if it doesn't expire.
* Invitation::Create() can update this field; see that for more info.
*/
time_t expiry;
/** Destructor
* Removes references to this Invitation from the associated user and channel.
*/
~Invitation();
/** Create or extend an Invitation.
* When a user is invited to join a channel either a new Invitation object is created or
* or the expiration timestamp is updated if there is already a pending Invitation for
* the given (user, channel) pair and the new expiration time is further than the current.
* @param c Target channel
* @param u Target user
* @param timeout Timestamp when the invite should expire, 0 for no expiration
*/
static void Create(Channel* c, LocalUser* u, time_t timeout);
/** Finds the Invitation object for the given channel/user pair.
* @param c Target channel, can be NULL to remove expired entries
* @param u Target user, cannot be NULL
* @param check_expired Pass true to remove all expired invites found while searching, false
* to return with an Invitation even if it's expired
* @return Invitation object for the given (channel, user) pair if it exists, NULL otherwise
*/
static Invitation* Find(Channel* c, LocalUser* u, bool check_expired = true);
};
typedef intrusive_list<Invitation, LocalUser> InviteList;
template<typename T>
inline void InviteBase<T>::ClearInvites()
{
for (typename intrusive_list<Invitation, T>::iterator i = invites.begin(); i != invites.end(); )
{
Invitation* inv = *i;
// Destructing the Invitation invalidates the iterator, so move it now
++i;
delete inv;
}
}
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