/*
* InspIRCd -- Internet Relay Chat Daemon
*
+ * Copyright (C) 2013, 2017-2018, 2020 Sadie Powell <sadie@witchery.services>
+ * Copyright (C) 2012-2016 Attila Molnar <attilamolnar@hush.com>
+ * Copyright (C) 2012, 2019 Robby <robby@chatbelgie.be>
+ * Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
+ * Copyright (C) 2009 Uli Schlachter <psychon@inspircd.org>
* Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
- * Copyright (C) 2008 Thomas Stagner <aquanight@inspircd.org>
- * Copyright (C) 2008 Craig Edwards <craigedwards@brainbox.cc>
* Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2006-2007 Dennis Friis <peavey@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
#include "inspircd.h"
-#include "commands/cmd_whowas.h"
#include "modules/stats.h"
enum
RPL_WHOWASIP = 652
};
+namespace WhoWas
+{
+ /** One entry for a nick. There may be multiple entries for a nick. */
+ struct Entry
+ {
+ /** Real host */
+ const std::string host;
+
+ /** Displayed host */
+ const std::string dhost;
+
+ /** Ident */
+ const std::string ident;
+
+ /** Server name */
+ const std::string server;
+
+ /** Real name */
+ const std::string real;
+
+ /** Signon time */
+ const time_t signon;
+
+ /** Initialize this Entry with a user */
+ Entry(User* user);
+ };
+
+ /** Everything known about one nick */
+ struct Nick : public insp::intrusive_list_node<Nick>
+ {
+ /** A group of users related by nickname */
+ typedef std::deque<Entry*> List;
+
+ /** Container where each element has information about one occurrence of this nick */
+ List entries;
+
+ /** Time this nick was added to the database */
+ const time_t addtime;
+
+ /** Nickname whose information is stored in this class */
+ const std::string nick;
+
+ /** Constructor to initialize fields */
+ Nick(const std::string& nickname);
+
+ /** Destructor, deallocates all elements in the entries container */
+ ~Nick();
+ };
+
+ class Manager
+ {
+ public:
+ struct Stats
+ {
+ /** Number of currently existing WhoWas::Entry objects */
+ size_t entrycount;
+ };
+
+ /** Add a user to the whowas database. Called when a user quits.
+ * @param user The user to add to the database
+ */
+ void Add(User* user);
+
+ /** Retrieves statistics about the whowas database
+ * @return Whowas statistics as a WhoWas::Manager::Stats struct
+ */
+ Stats GetStats() const;
+
+ /** Expires old entries */
+ void Maintain();
+
+ /** Updates the current configuration which may result in the database being pruned if the
+ * new values are lower than the current ones.
+ * @param NewGroupSize Maximum number of nicks allowed in the database. In case there are this many nicks
+ * in the database and one more is added, the oldest one is removed (FIFO).
+ * @param NewMaxGroups Maximum number of entries per nick
+ * @param NewMaxKeep Seconds how long each nick should be kept
+ */
+ void UpdateConfig(unsigned int NewGroupSize, unsigned int NewMaxGroups, unsigned int NewMaxKeep);
+
+ /** Retrieves all data known about a given nick
+ * @param nick Nickname to find, case insensitive (IRC casemapping)
+ * @return A pointer to a WhoWas::Nick if the nick was found, NULL otherwise
+ */
+ const Nick* FindNick(const std::string& nick) const;
+
+ /** Returns true if WHOWAS is enabled according to the current configuration
+ * @return True if WHOWAS is enabled according to the configuration, false if WHOWAS is disabled
+ */
+ bool IsEnabled() const;
+
+ /** Constructor */
+ Manager();
+
+ /** Destructor */
+ ~Manager();
+
+ private:
+ /** Order in which the users were added into the map, used to remove oldest nick */
+ typedef insp::intrusive_list_tail<Nick> FIFO;
+
+ /** Sets of users in the whowas system */
+ typedef TR1NS::unordered_map<std::string, WhoWas::Nick*, irc::insensitive, irc::StrHashComp> whowas_users;
+
+ /** Primary container, links nicknames tracked by WHOWAS to a list of records */
+ whowas_users whowas;
+
+ /** List of nicknames in the order they were inserted into the map */
+ FIFO whowas_fifo;
+
+ /** Max number of WhoWas entries per user. */
+ unsigned int GroupSize;
+
+ /** Max number of cumulative user-entries in WhoWas.
+ * When max reached and added to, push out oldest entry FIFO style.
+ */
+ unsigned int MaxGroups;
+
+ /** Max seconds a user is kept in WhoWas before being pruned. */
+ unsigned int MaxKeep;
+
+ /** Shrink all data structures to honor the current settings */
+ void Prune();
+
+ /** Remove a nick (and all entries belonging to it) from the database
+ * @param it Iterator to the nick to purge
+ */
+ void PurgeNick(whowas_users::iterator it);
+
+ /** Remove a nick (and all entries belonging to it) from the database
+ * @param nick Nick to purge
+ */
+ void PurgeNick(WhoWas::Nick* nick);
+ };
+}
+
+class CommandWhowas : public Command
+{
+ public:
+ // Manager handling all whowas database related tasks
+ WhoWas::Manager manager;
+
+ CommandWhowas(Module* parent);
+ CmdResult Handle(User* user, const Params& parameters) CXX11_OVERRIDE;
+};
+
CommandWhowas::CommandWhowas( Module* parent)
: Command(parent, "WHOWAS", 1)
{
Version GetVersion() CXX11_OVERRIDE
{
- return Version("Provides the WHOWAS command", VF_VENDOR);
+ return Version("Provides the WHOWAS command", VF_CORE | VF_VENDOR);
}
};
projects / user / henk / code / inspircd.git / blobdiff