2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2007 Robin Burchell <robin+git@viroteck.net>
6 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
7 * Copyright (C) 2003-2007 Craig Edwards <craigedwards@brainbox.cc>
9 * This file is part of InspIRCd. InspIRCd is free software: you can
10 * redistribute it and/or modify it under the terms of the GNU General Public
11 * License as published by the Free Software Foundation, version 2.
13 * This program is distributed in the hope that it will be useful, but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
15 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
18 * You should have received a copy of the GNU General Public License
19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
26 #include "membership.h"
29 /** Holds an entry for a ban list, exemption list, or invite list.
30 * This class contains a single element in a channel list, such as a banlist.
33 /** Holds all relevent information for a channel.
34 * This class represents a channel, and contains its name, modes, topic, topic set time,
35 * etc, and an instance of the BanList type.
37 class CoreExport Channel : public Extensible, public InviteBase
39 /** Connect a Channel to a User
41 static Channel* ForceChan(Channel* Ptr, User* user, const std::string &privs, bool bursting, bool created);
43 /** Set default modes for the channel on creation
45 void SetDefaultModes();
47 /** Modes for the channel.
48 * This is not a null terminated string! It is a bitset where
49 * each item in it represents if a mode is set. For example
50 * for mode +A, index 0. Use modechar-65 to calculate which
53 std::bitset<64> modes;
55 /** Parameters for custom modes.
56 * One for each custom mode letter.
58 CustomModeList custom_mode_params;
61 /** Creates a channel record and initialises it with default values
62 * @throw Nothing at present.
64 Channel(const std::string &name, time_t ts);
66 /** The channel's name.
70 /** Time that the object was instantiated (used for TS calculation etc)
76 UserMembList userlist;
79 * If this is an empty string, no channel topic is set.
83 /** Time topic was set.
84 * If no topic was ever set, this will be equal to Channel::created
88 /** The last user to set the topic.
89 * If this member is an empty string, no topic was ever set.
91 std::string setby; /* 128 */
93 /** Sets or unsets a custom mode in the channels info
94 * @param mode The mode character to set or unset
95 * @param value True if you want to set the mode or false if you want to remove it
97 void SetMode(ModeHandler* mode, bool value);
98 void SetMode(char mode,bool mode_on);
100 /** Sets or unsets a custom mode in the channels info
101 * @param mode The mode character to set or unset
102 * @param parameter The parameter string to associate with this mode character.
103 * If it is empty, the mode is unset; if it is nonempty, the mode is set.
105 void SetModeParam(ModeHandler* mode, const std::string& parameter);
106 void SetModeParam(char mode, const std::string& parameter);
108 /** Returns true if a mode is set on a channel
109 * @param mode The mode character you wish to query
110 * @return True if the custom mode is set, false if otherwise
112 inline bool IsModeSet(char mode) { return modes[mode-'A']; }
113 inline bool IsModeSet(ModeHandler* mode) { return modes[mode->GetModeChar()-'A']; }
116 /** Returns the parameter for a custom mode on a channel.
117 * @param mode The mode character you wish to query
119 * For example if "+L #foo" is set, and you pass this method
120 * 'L', it will return '\#foo'. If the mode is not set on the
121 * channel, or the mode has no parameters associated with it,
122 * it will return an empty string.
124 * @return The parameter for this mode is returned, or an empty string
126 std::string GetModeParameter(char mode);
127 std::string GetModeParameter(ModeHandler* mode);
129 /** Sets the channel topic.
130 * @param u The user setting the topic
131 * @param t The topic to set it to. Non-const, as it may be modified by a hook.
132 * @param forceset If set to true then all access checks will be bypassed.
134 int SetTopic(User *u, std::string &t, bool forceset = false);
136 /** Obtain the channel "user counter"
137 * This returns the channel reference counter, which is initialized
138 * to 0 when the channel is created and incremented/decremented
139 * upon joins, parts quits and kicks.
141 * @return The number of users on this channel
143 long GetUserCounter();
145 /** Add a user pointer to the internal reference list
146 * @param user The user to add
148 * The data inserted into the reference list is a table as it is
149 * an arbitary pointer compared to other users by its memory address,
150 * as this is a very fast 32 or 64 bit integer comparison.
152 Membership* AddUser(User* user);
154 /** Delete a user pointer to the internal reference list
155 * @param user The user to delete
156 * @return number of users left on the channel after deletion of the user
158 void DelUser(User* user);
160 /** Obtain the internal reference list
161 * The internal reference list contains a list of User*.
162 * These are used for rapid comparison to determine
163 * channel membership for PRIVMSG, NOTICE, QUIT, PART etc.
164 * The resulting pointer to the vector should be considered
165 * readonly and only modified via AddUser and DelUser.
167 * @return This function returns pointer to a map of User pointers (CUList*).
169 const UserMembList* GetUsers();
171 /** Returns true if the user given is on the given channel.
172 * @param user The user to look for
173 * @return True if the user is on this channel
175 bool HasUser(User* user);
177 Membership* GetUser(User* user);
179 /** Make src kick user from this channel with the given reason.
180 * @param src The source of the kick
181 * @param user The user being kicked (must be on this channel)
182 * @param reason The reason for the kick
184 void KickUser(User *src, User *user, const char* reason);
186 /** Part a user from this channel with the given reason.
187 * If the reason field is NULL, no reason will be sent.
188 * @param user The user who is parting (must be on this channel)
189 * @param reason The part reason
191 void PartUser(User *user, std::string &reason);
193 /* Join a user to a channel. May be a channel that doesnt exist yet.
194 * @param user The user to join to the channel.
195 * @param channame The channel name to join to. Does not have to exist.
196 * @param key The key of the channel, if given
197 * @param override If true, override all join restrictions such as +bkil
198 * @return A pointer to the Channel the user was joined to. A new Channel may have
199 * been created if the channel did not exist before the user was joined to it.
200 * If the user could not be joined to a channel, the return value may be NULL.
202 static Channel* JoinUser(User *user, std::string channame, bool override, const std::string& key, bool bursting, time_t TS = 0);
204 /** Write to a channel, from a user, using va_args for text
205 * @param user User whos details to prefix the line with
206 * @param text A printf-style format string which builds the output line without prefix
207 * @param ... Zero or more POD types
209 void WriteChannel(User* user, const char* text, ...) CUSTOM_PRINTF(3, 4);
211 /** Write to a channel, from a user, using std::string for text
212 * @param user User whos details to prefix the line with
213 * @param text A std::string containing the output line without prefix
215 void WriteChannel(User* user, const std::string &text);
217 /** Write to a channel, from a server, using va_args for text
218 * @param ServName Server name to prefix the line with
219 * @param text A printf-style format string which builds the output line without prefix
220 * @param ... Zero or more POD type
222 void WriteChannelWithServ(const std::string& ServName, const char* text, ...) CUSTOM_PRINTF(3, 4);
224 /** Write to a channel, from a server, using std::string for text
225 * @param ServName Server name to prefix the line with
226 * @param text A std::string containing the output line without prefix
228 void WriteChannelWithServ(const std::string& ServName, const std::string &text);
230 /** Write to all users on a channel except a specific user, using va_args for text.
231 * Internally, this calls WriteAllExcept().
232 * @param user User whos details to prefix the line with, and to omit from receipt of the message
233 * @param serversource If this parameter is true, use the local server name as the source of the text, otherwise,
234 * use the nick!user\@host of the user.
235 * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone
236 * @param text A printf-style format string which builds the output line without prefix
237 * @param ... Zero or more POD type
239 void WriteAllExceptSender(User* user, bool serversource, char status, const char* text, ...) CUSTOM_PRINTF(5, 6);
241 /** Write to all users on a channel except a list of users, using va_args for text
242 * @param user User whos details to prefix the line with, and to omit from receipt of the message
243 * @param serversource If this parameter is true, use the local server name as the source of the text, otherwise,
244 * use the nick!user\@host of the user.
245 * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone
246 * @param except_list A list of users NOT to send the text to
247 * @param text A printf-style format string which builds the output line without prefix
248 * @param ... Zero or more POD type
250 void WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const char* text, ...) CUSTOM_PRINTF(6, 7);
252 /** Write to all users on a channel except a specific user, using std::string for text.
253 * Internally, this calls WriteAllExcept().
254 * @param user User whos details to prefix the line with, and to omit from receipt of the message
255 * @param serversource If this parameter is true, use the local server name as the source of the text, otherwise,
256 * use the nick!user\@host of the user.
257 * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone
258 * @param text A std::string containing the output line without prefix
260 void WriteAllExceptSender(User* user, bool serversource, char status, const std::string& text);
262 /** Write to all users on a channel except a list of users, using std::string for text
263 * @param user User whos details to prefix the line with, and to omit from receipt of the message
264 * @param serversource If this parameter is true, use the local server name as the source of the text, otherwise,
265 * use the nick!user\@host of the user.
266 * @param status The status of the users to write to, e.g. '@' or '%'. Use a value of 0 to write to everyone
267 * @param except_list A list of users NOT to send the text to
268 * @param text A std::string containing the output line without prefix
270 void WriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const std::string& text);
271 /** Write a line of text that already includes the source */
272 void RawWriteAllExcept(User* user, bool serversource, char status, CUList &except_list, const std::string& text);
274 /** Return the channel's modes with parameters.
275 * @param showkey If this is set to true, the actual key is shown,
276 * otherwise it is replaced with '<KEY>'
277 * @return The channel mode string
279 char* ChanModes(bool showkey);
281 /** Spool the NAMES list for this channel to the given user
282 * @param user The user to spool the NAMES list to
284 void UserList(User *user);
286 /** Get the number of invisible users on this channel
287 * @return Number of invisible users
289 int CountInvisible();
291 /** Get a users prefix on this channel in a string.
292 * @param user The user to look up
293 * @return A character array containing the prefix string.
294 * Unlike GetStatus and GetStatusFlags which will only return the
295 * core specified modes @, % and + (op, halfop and voice), GetPrefixChar
296 * will also return module-defined prefixes. If the user has to prefix,
297 * an empty but non-null string is returned. If the user has multiple
298 * prefixes, the highest is returned. If you do not recognise the prefix
299 * character you can get, you can deal with it in a 'proprtional' manner
300 * compared to known prefixes, using GetPrefixValue().
302 const char* GetPrefixChar(User *user);
304 /** Return all of a users mode prefixes into a char* string.
305 * @param user The user to look up
306 * @return A list of all prefix characters. The prefixes will always
307 * be in rank order, greatest first, as certain IRC clients require
308 * this when multiple prefixes are used names lists.
310 const char* GetAllPrefixChars(User* user);
312 /** Get the value of a users prefix on this channel.
313 * @param user The user to look up
314 * @return The module or core-defined value of the users prefix.
315 * The values for op, halfop and voice status are constants in
316 * mode.h, and are OP_VALUE, HALFOP_VALUE, and VOICE_VALUE respectively.
317 * If the value you are given does not match one of these three, it is
318 * a module-defined mode, and it should be compared in proportion to
319 * these three constants. For example a value greater than OP_VALUE
320 * is a prefix of greater 'worth' than ops, and a value less than
321 * VOICE_VALUE is of lesser 'worth' than a voice.
323 unsigned int GetPrefixValue(User* user);
325 /** This method removes all prefix characters from a user.
326 * It will not inform the user or the channel of the removal of prefixes,
327 * and should be used when the user parts or quits.
328 * @param user The user to remove all prefixes from
330 void RemoveAllPrefixes(User* user);
332 /** Add a prefix character to a user.
333 * Only the core should call this method, usually from
334 * within the mode parser or when the first user joins
335 * the channel (to grant ops to them)
336 * @param user The user to associate the privilage with
337 * @param prefix The prefix character to associate
338 * @param adding True if adding the prefix, false when removing
339 * @return True if a change was made
341 bool SetPrefix(User* user, char prefix, bool adding);
343 /** Check if a user is banned on this channel
344 * @param user A user to check against the banlist
345 * @returns True if the user given is banned
347 bool IsBanned(User* user);
349 /** Check a single ban for match
351 bool CheckBan(User* user, const std::string& banmask);
353 /** Get the status of an "action" type extban
355 ModResult GetExtBanStatus(User *u, char type);