1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
23 enum DebugLevels { DEBUG, VERBOSE, DEFAULT, SPARSE, NONE };
25 /** Used with OnExtendedMode() method of modules
27 enum ModeTargetType { MT_CHANNEL, MT_CLIENT, MT_SERVER };
29 /** Used with OnAccessCheck() method of modules
31 enum AccessControlType {
32 ACR_DEFAULT, // Do default action (act as if the module isnt even loaded)
33 ACR_DENY, // deny the action
34 ACR_ALLOW, // allow the action
35 AC_KICK, // a user is being kicked
36 AC_DEOP, // a user is being deopped
37 AC_OP, // a user is being opped
38 AC_VOICE, // a user is being voiced
39 AC_DEVOICE, // a user is being devoiced
40 AC_HALFOP, // a user is being halfopped
41 AC_DEHALFOP, // a user is being dehalfopped
42 AC_INVITE, // a user is being invited
43 AC_GENERAL_MODE // a channel mode is being changed
46 /** Used to define a set of behavior bits for a module
49 VF_STATIC = 1, // module is static, cannot be /unloadmodule'd
50 VF_VENDOR = 2, // module is a vendor module (came in the original tarball, not 3rd party)
51 VF_SERVICEPROVIDER = 4, // module provides a service to other modules (can be a dependency)
52 VF_COMMON = 8 // module needs to be common on all servers in a network to link
60 enum TargetTypeFlags {
78 /** Low level definition of a FileReader classes file cache area
80 typedef std::deque<std::string> file_cache;
81 typedef file_cache string_list;
83 /** Holds a list of users in a channel
85 typedef std::deque<userrec*> chanuserlist;
88 // This #define allows us to call a method in all
89 // loaded modules in a readable simple way, e.g.:
90 // 'FOREACH_MOD OnConnect(user);'
92 #define FOREACH_MOD(y,x) if (Config->global_implementation[y] > 0) { \
93 for (int _i = 0; _i <= MODCOUNT; _i++) { \
94 if (Config->implement_lists[_i][y]) \
99 // This define is similar to the one above but returns a result in MOD_RESULT.
100 // The first module to return a nonzero result is the value to be accepted,
101 // and any modules after are ignored.
103 // *********************************************************************************************
105 #define FOREACH_RESULT(y,x) { if (Config->global_implementation[y] > 0) { \
107 for (int _i = 0; _i <= MODCOUNT; _i++) { \
108 if (Config->implement_lists[_i][y]) {\
109 int res = modules[_i]->x ; \
119 // *********************************************************************************************
121 #define FD_MAGIC_NUMBER -42
125 #define IS_LOCAL(x) (x->fd > -1)
126 #define IS_REMOTE(x) (x->fd < 0)
127 #define IS_MODULE_CREATED(x) (x->fd == FD_MAGIC_NUMBER)
129 /*extern void createcommand(char* cmd, handlerfunc f, char flags, int minparams, char* source);
130 extern void server_mode(char **parameters, int pcnt, userrec *user);*/
132 // class Version holds the version information of a Module, returned
133 // by Module::GetVersion (thanks RD)
135 /** Holds a module's Version information
136 * The four members (set by the constructor only) indicate details as to the version number
137 * of a module. A class of type Version is returned by the GetVersion method of the Module class.
139 class Version : public classbase
142 const int Major, Minor, Revision, Build, Flags;
143 Version(int major, int minor, int revision, int build, int flags);
146 /** Holds /ADMIN data
147 * This class contains the admin details of the local server. It is constructed by class Server,
148 * and has three read-only values, Name, Email and Nick that contain the specified values for the
149 * server where the module is running.
151 class Admin : public classbase
154 const std::string Name, Email, Nick;
155 Admin(std::string name, std::string email, std::string nick);
159 // Forward-delacare module for ModuleMessage etc
162 // Thanks to Rob (from anope) for the idea of this message passing API
163 // (its been done before, but this seemed a very neat and tidy way...
165 /** The ModuleMessage class is the base class of Request and Event
166 * This class is used to represent a basic data structure which is passed
167 * between modules for safe inter-module communications.
169 class ModuleMessage : public classbase
172 /** This class is pure virtual and must be inherited.
174 virtual char* Send() = 0;
175 virtual ~ModuleMessage() {};
178 /** The Request class is a unicast message directed at a given module.
179 * When this class is properly instantiated it may be sent to a module
180 * using the Send() method, which will call the given module's OnRequest
181 * method with this class as its parameter.
183 class Request : public ModuleMessage
186 /** This member holds a pointer to arbitary data set by the emitter of the message
189 /** This is a pointer to the sender of the message, which can be used to
190 * directly trigger events, or to create a reply.
193 /** The single destination of the Request
197 /** Create a new Request
199 Request(char* anydata, Module* src, Module* dst);
200 /** Fetch the Request data
203 /** Fetch the request source
206 /** Fetch the request destination (should be 'this' in the receiving module)
209 /** Send the Request.
210 * Upon returning the result will be arbitary data returned by the module you
211 * sent the request to. It is up to your module to know what this data is and
212 * how to deal with it.
218 /** The Event class is a unicast message directed at all modules.
219 * When the class is properly instantiated it may be sent to all modules
220 * using the Send() method, which will trigger the OnEvent method in
221 * all modules passing the object as its parameter.
223 class Event : public ModuleMessage
226 /** This member holds a pointer to arbitary data set by the emitter of the message
229 /** This is a pointer to the sender of the message, which can be used to
230 * directly trigger events, or to create a reply.
233 /** The event identifier.
234 * This is arbitary text which should be used to distinguish
235 * one type of event from another.
239 /** Create a new Event
241 Event(char* anydata, Module* src, std::string eventid);
242 /** Get the Event data
245 /** Get the event Source
248 /** Get the event ID.
249 * Use this to determine the event type for safe casting of the data
251 std::string GetEventID();
253 * The return result of an Event::Send() will always be NULL as
254 * no replies are expected.
259 /** Holds an extended mode's details.
260 * Used internally by modules.cpp
262 class ExtMode : public classbase
271 ExtMode(char mc, int ty, bool oper, int p_on, int p_off) : modechar(mc), type(ty), needsoper(oper), params_when_on(p_on), params_when_off(p_off) { };
275 enum Priority { PRIORITY_FIRST, PRIORITY_DONTCARE, PRIORITY_LAST };
277 enum Implementation { I_OnUserConnect, I_OnUserQuit, I_OnUserDisconnect, I_OnUserJoin, I_OnUserPart, I_OnRehash, I_OnServerRaw,
278 I_OnExtendedMode, I_OnUserPreJoin, I_OnUserPreKick, I_OnUserKick, I_OnOper, I_OnInfo, I_OnWhois, I_OnUserPreInvite,
279 I_OnUserInvite, I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserPreNick, I_OnUserMessage, I_OnUserNotice, I_OnMode,
280 I_OnGetServerDescription, I_OnSyncUser, I_OnSyncChannel, I_OnSyncChannelMetaData, I_OnSyncUserMetaData,
281 I_OnDecodeMetaData, I_ProtoSendMode, I_ProtoSendMetaData, I_OnWallops, I_OnChangeHost, I_OnChangeName, I_OnAddGLine,
282 I_OnAddZLine, I_OnAddQLine, I_OnAddKLine, I_OnAddELine, I_OnDelGLine, I_OnDelZLine, I_OnDelKLine, I_OnDelELine, I_OnDelQLine,
283 I_OnCleanup, I_OnUserPostNick, I_OnAccessCheck, I_On005Numeric, I_OnKill, I_OnRemoteKill, I_OnLoadModule, I_OnUnloadModule,
284 I_OnBackgroundTimer, I_OnSendList, I_OnPreCommand, I_OnCheckReady, I_OnUserRrgister, I_OnRawMode, I_OnCheckInvite,
285 I_OnCheckKey, I_OnCheckLimit, I_OnCheckBan, I_OnStats, I_OnChangeLocalUserHost, I_OnChangeLocalUserGecos, I_OnLocalTopicChange,
286 I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnOperCompre, I_OnGlobalOper, I_OnGlobalConnect, I_OnAddBan, I_OnDelBan,
287 I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketWrite, I_OnRawSocketRead, I_OnChangeLocalUserGECOS, I_OnUserRegister,
290 /** Base class for all InspIRCd modules
291 * This class is the base class for InspIRCd modules. All modules must inherit from this class,
292 * its methods will be called when irc server events occur. class inherited from module must be
293 * instantiated by the ModuleFactory class (see relevent section) for the plugin to be initialised.
295 class Module : public classbase
299 /** Default constructor
300 * Creates a module class.
301 * @param Me An instance of the Server class which can be saved for future use
305 /** Default destructor
306 * destroys a module class
310 /** Returns the version number of a Module.
311 * The method should return a Version object with its version information assigned via
314 virtual Version GetVersion();
316 virtual void Implements(char* Implements);
318 virtual Priority Prioritize();
320 /** Called when a user connects.
321 * The details of the connecting user are available to you in the parameter userrec *user
322 * @param user The user who is connecting
324 virtual void OnUserConnect(userrec* user);
326 /** Called when a user quits.
327 * The details of the exiting user are available to you in the parameter userrec *user
328 * This event is only called when the user is fully registered when they quit. To catch
329 * raw disconnections, use the OnUserDisconnect method.
330 * @param user The user who is quitting
331 * @param message The user's quit message
333 virtual void OnUserQuit(userrec* user, std::string message);
335 /** Called whenever a user's socket is closed.
336 * The details of the exiting user are available to you in the parameter userrec *user
337 * This event is called for all users, registered or not, as a cleanup method for modules
338 * which might assign resources to user, such as dns lookups, objects and sockets.
339 * @param user The user who is disconnecting
341 virtual void OnUserDisconnect(userrec* user);
343 /** Called when a user joins a channel.
344 * The details of the joining user are available to you in the parameter userrec *user,
345 * and the details of the channel they have joined is available in the variable chanrec *channel
346 * @param user The user who is joining
347 * @param channel The channel being joined
349 virtual void OnUserJoin(userrec* user, chanrec* channel);
351 /** Called when a user parts a channel.
352 * The details of the leaving user are available to you in the parameter userrec *user,
353 * and the details of the channel they have left is available in the variable chanrec *channel
354 * @param user The user who is parting
355 * @param channel The channel being parted
357 virtual void OnUserPart(userrec* user, chanrec* channel);
359 /** Called on rehash.
360 * This method is called prior to a /REHASH or when a SIGHUP is received from the operating
361 * system. You should use it to reload any files so that your module keeps in step with the
362 * rest of the application. If a parameter is given, the core has done nothing. The module
363 * receiving the event can decide if this parameter has any relevence to it.
364 * @param parameter The (optional) parameter given to REHASH from the user.
366 virtual void OnRehash(std::string parameter);
368 /** Called when a raw command is transmitted or received.
369 * This method is the lowest level of handler available to a module. It will be called with raw
370 * data which is passing through a connected socket. If you wish, you may munge this data by changing
371 * the string parameter "raw". If you do this, after your function exits it will immediately be
372 * cut down to 510 characters plus a carriage return and linefeed. For INBOUND messages only (where
373 * inbound is set to true) the value of user will be the userrec of the connection sending the
374 * data. This is not possible for outbound data because the data may be being routed to multiple targets.
375 * @param raw The raw string in RFC1459 format
376 * @param inbound A flag to indicate wether the data is coming into the daemon or going out to the user
377 * @param user The user record sending the text, when inbound == true.
379 virtual void OnServerRaw(std::string &raw, bool inbound, userrec* user);
381 /** Called whenever an extended mode is to be processed.
382 * The type parameter is MT_SERVER, MT_CLIENT or MT_CHANNEL, dependent on where the mode is being
383 * changed. mode_on is set when the mode is being set, in which case params contains a list of
384 * parameters for the mode as strings. If mode_on is false, the mode is being removed, and parameters
385 * may contain the parameters for the mode, dependent on wether they were defined when a mode handler
386 * was set up with Server::AddExtendedMode
387 * If the mode is a channel mode, target is a chanrec*, and if it is a user mode, target is a userrec*.
388 * You must cast this value yourself to make use of it.
389 * @param user The user issuing the mode
390 * @param target The user or channel having the mode set on them
391 * @param modechar The mode character being set
392 * @param type The type of mode (user or channel) being set
393 * @param mode_on True if the mode is being set, false if it is being unset
394 * @param params A list of parameters for any channel mode (currently supports either 0 or 1 parameters)
396 virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list ¶ms);
398 /** Called whenever a user is about to join a channel, before any processing is done.
399 * Returning a value of 1 from this function stops the process immediately, causing no
400 * output to be sent to the user by the core. If you do this you must produce your own numerics,
401 * notices etc. This is useful for modules which may want to mimic +b, +k, +l etc. Returning -1 from
402 * this function forces the join to be allowed, bypassing restrictions such as banlists, invite, keys etc.
406 * If the user joins a NEW channel which does not exist yet, OnUserPreJoin will be called BEFORE the channel
407 * record is created. This will cause chanrec* chan to be NULL. There is very little you can do in form of
408 * processing on the actual channel record at this point, however the channel NAME will still be passed in
409 * char* cname, so that you could for example implement a channel blacklist or whitelist, etc.
410 * @param user The user joining the channel
411 * @param cname The channel name being joined
412 * @return 1 To prevent the join, 0 to allow it.
414 virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname);
416 /** Called whenever a user is about to be kicked.
417 * Returning a value of 1 from this function stops the process immediately, causing no
418 * output to be sent to the user by the core. If you do this you must produce your own numerics,
420 * @param source The user issuing the kick
421 * @param user The user being kicked
422 * @param chan The channel the user is being kicked from
423 * @param reason The kick reason
424 * @return 1 to prevent the kick, 0 to allow it
426 virtual int OnUserPreKick(userrec* source, userrec* user, chanrec* chan, std::string reason);
428 /** Called whenever a user is kicked.
429 * If this method is called, the kick is already underway and cannot be prevented, so
430 * to prevent a kick, please use Module::OnUserPreKick instead of this method.
431 * @param source The user issuing the kick
432 * @param user The user being kicked
433 * @param chan The channel the user is being kicked from
434 * @param reason The kick reason
436 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, std::string reason);
438 /** Called whenever a user opers locally.
439 * The userrec will contain the oper mode 'o' as this function is called after any modifications
440 * are made to the user's structure by the core.
441 * @param user The user who is opering up
442 * @param opertype The opers type name
444 virtual void OnOper(userrec* user, std::string opertype);
446 /** Called whenever a user types /INFO.
447 * The userrec will contain the information of the user who typed the command. Modules may use this
448 * method to output their own credits in /INFO (which is the ircd's version of an about box).
449 * It is purposefully not possible to modify any info that has already been output, or halt the list.
450 * You must write a 371 numeric to the user, containing your info in the following format:
452 * <nick> :information here
454 * @param user The user issuing /INFO
456 virtual void OnInfo(userrec* user);
458 /** Called whenever a /WHOIS is performed on a local user.
459 * The source parameter contains the details of the user who issued the WHOIS command, and
460 * the dest parameter contains the information of the user they are whoising.
461 * @param source The user issuing the WHOIS command
462 * @param dest The user who is being WHOISed
464 virtual void OnWhois(userrec* source, userrec* dest);
466 /** Called whenever a user is about to invite another user into a channel, before any processing is done.
467 * Returning 1 from this function stops the process immediately, causing no
468 * output to be sent to the user by the core. If you do this you must produce your own numerics,
469 * notices etc. This is useful for modules which may want to filter invites to channels.
470 * @param source The user who is issuing the INVITE
471 * @param dest The user being invited
472 * @param channel The channel the user is being invited to
473 * @return 1 to deny the invite, 0 to allow
475 virtual int OnUserPreInvite(userrec* source,userrec* dest,chanrec* channel);
477 /** Called after a user has been successfully invited to a channel.
478 * You cannot prevent the invite from occuring using this function, to do that,
479 * use OnUserPreInvite instead.
480 * @param source The user who is issuing the INVITE
481 * @param dest The user being invited
482 * @param channel The channel the user is being invited to
484 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel);
486 /** Called whenever a user is about to PRIVMSG A user or a channel, before any processing is done.
487 * Returning any nonzero value from this function stops the process immediately, causing no
488 * output to be sent to the user by the core. If you do this you must produce your own numerics,
489 * notices etc. This is useful for modules which may want to filter or redirect messages.
490 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
491 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
492 * of where the message is destined to be sent.
493 * @param user The user sending the message
494 * @param dest The target of the message (chanrec* or userrec*)
495 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
496 * @param text Changeable text being sent by the user
497 * @return 1 to deny the NOTICE, 0 to allow it
499 virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text);
501 /** Called whenever a user is about to NOTICE A user or a channel, before any processing is done.
502 * Returning any nonzero value from this function stops the process immediately, causing no
503 * output to be sent to the user by the core. If you do this you must produce your own numerics,
504 * notices etc. This is useful for modules which may want to filter or redirect messages.
505 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
506 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
507 * of where the message is destined to be sent.
508 * You may alter the message text as you wish before relinquishing control to the next module
509 * in the chain, and if no other modules block the text this altered form of the text will be sent out
510 * to the user and possibly to other servers.
511 * @param user The user sending the message
512 * @param dest The target of the message (chanrec* or userrec*)
513 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
514 * @param text Changeable text being sent by the user
515 * @return 1 to deny the NOTICE, 0 to allow it
517 virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text);
519 /** Called before any nickchange, local or remote. This can be used to implement Q-lines etc.
520 * Please note that although you can see remote nickchanges through this function, you should
521 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
522 * check user->server before taking any action (including returning nonzero from the method).
523 * If your method returns nonzero, the nickchange is silently forbidden, and it is down to your
524 * module to generate some meaninful output.
525 * @param user The username changing their nick
526 * @param newnick Their new nickname
527 * @return 1 to deny the change, 0 to allow
529 virtual int OnUserPreNick(userrec* user, std::string newnick);
531 /** Called after any PRIVMSG sent from a user.
532 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
533 * if target_type is TYPE_CHANNEL.
534 * @param user The user sending the message
535 * @param dest The target of the message
536 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
537 * @param text the text being sent by the user
539 virtual void OnUserMessage(userrec* user, void* dest, int target_type, std::string text);
541 /** Called after any NOTICE sent from a user.
542 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
543 * if target_type is TYPE_CHANNEL.
544 * @param user The user sending the message
545 * @param dest The target of the message
546 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
547 * @param text the text being sent by the user
549 virtual void OnUserNotice(userrec* user, void* dest, int target_type, std::string text);
551 /** Called after every MODE command sent from a user
552 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
553 * if target_type is TYPE_CHANNEL. The text variable contains the remainder of the
554 * mode string after the target, e.g. "+wsi" or "+ooo nick1 nick2 nick3".
555 * @param user The user sending the MODEs
556 * @param dest The target of the modes (userrec* or chanrec*)
557 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
558 * @param text The actual modes and their parameters if any
560 virtual void OnMode(userrec* user, void* dest, int target_type, std::string text);
562 /** Allows modules to alter or create server descriptions
563 * Whenever a module requires a server description, for example for display in
564 * WHOIS, this function is called in all modules. You may change or define the
565 * description given in std::string &description. If you do, this description
566 * will be shown in the WHOIS fields.
567 * @param servername The servername being searched for
568 * @param description Alterable server description for this server
570 virtual void OnGetServerDescription(std::string servername,std::string &description);
572 /** Allows modules to synchronize data which relates to users during a netburst.
573 * When this function is called, it will be called from the module which implements
574 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
575 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
576 * (see below). This function will be called for every user visible on your side
577 * of the burst, allowing you to for example set modes, etc. Do not use this call to
578 * synchronize data which you have stored using class Extensible -- There is a specialist
579 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
580 * @param user The user being syncronized
581 * @param proto A pointer to the module handling network protocol
582 * @param opaque An opaque pointer set by the protocol module, should not be modified!
584 virtual void OnSyncUser(userrec* user, Module* proto, void* opaque);
586 /** Allows modules to synchronize data which relates to channels during a netburst.
587 * When this function is called, it will be called from the module which implements
588 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
589 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
590 * (see below). This function will be called for every user visible on your side
591 * of the burst, allowing you to for example set modes, etc. Do not use this call to
592 * synchronize data which you have stored using class Extensible -- There is a specialist
593 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
595 * For a good example of how to use this function, please see src/modules/m_chanprotect.cpp
597 * @param chan The channel being syncronized
598 * @param proto A pointer to the module handling network protocol
599 * @param opaque An opaque pointer set by the protocol module, should not be modified!
601 virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque);
603 /* Allows modules to syncronize metadata related to channels over the network during a netburst.
604 * Whenever the linking module wants to send out data, but doesnt know what the data
605 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
606 * this method is called.You should use the ProtoSendMetaData function after you've
607 * correctly decided how the data should be represented, to send the metadata on its way if it belongs
608 * to your module. For a good example of how to use this method, see src/modules/m_swhois.cpp.
609 * @param chan The channel whos metadata is being syncronized
610 * @param proto A pointer to the module handling network protocol
611 * @param opaque An opaque pointer set by the protocol module, should not be modified!
612 * @param extname The extensions name which is being searched for
614 virtual void OnSyncChannelMetaData(chanrec* chan, Module* proto,void* opaque, std::string extname);
616 /* Allows modules to syncronize metadata related to users over the network during a netburst.
617 * Whenever the linking module wants to send out data, but doesnt know what the data
618 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
619 * this method is called. You should use the ProtoSendMetaData function after you've
620 * correctly decided how the data should be represented, to send the metadata on its way if
621 * if it belongs to your module.
622 * @param user The user whos metadata is being syncronized
623 * @param proto A pointer to the module handling network protocol
624 * @param opaque An opaque pointer set by the protocol module, should not be modified!
625 * @param extname The extensions name which is being searched for
627 virtual void OnSyncUserMetaData(userrec* user, Module* proto,void* opaque, std::string extname);
629 /** Allows module data, sent via ProtoSendMetaData, to be decoded again by a receiving module.
630 * Please see src/modules/m_swhois.cpp for a working example of how to use this method call.
631 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
632 * @param target The chanrec* or userrec* that data should be added to
633 * @param extname The extension name which is being sent
634 * @param extdata The extension data, encoded at the other end by an identical module through OnSyncChannelMetaData or OnSyncUserMetaData
636 virtual void OnDecodeMetaData(int target_type, void* target, std::string extname, std::string extdata);
638 /** Implemented by modules which provide the ability to link servers.
639 * These modules will implement this method, which allows transparent sending of servermodes
640 * down the network link as a broadcast, without a module calling it having to know the format
641 * of the MODE command before the actual mode string.
643 * More documentation to follow soon. Please see src/modules/m_chanprotect.cpp for examples
644 * of how to use this function.
646 * @param opaque An opaque pointer set by the protocol module, should not be modified!
647 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
648 * @param target The chanrec* or userrec* that modes should be sent for
649 * @param modeline The modes and parameters to be sent
651 virtual void ProtoSendMode(void* opaque, int target_type, void* target, std::string modeline);
653 /** Implemented by modules which provide the ability to link servers.
654 * These modules will implement this method, which allows metadata (extra data added to
655 * user and channel records using class Extensible, Extensible::Extend, etc) to be sent
656 * to other servers on a netburst and decoded at the other end by the same module on a
659 * More documentation to follow soon. Please see src/modules/m_swhois.cpp for example of
660 * how to use this function.
661 * @param opaque An opaque pointer set by the protocol module, should not be modified!
662 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
663 * @param target The chanrec* or userrec* that metadata should be sent for
664 * @param extname The extension name to send metadata for
665 * @param extdata Encoded data for this extension name, which will be encoded at the oppsite end by an identical module using OnDecodeMetaData
667 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, std::string extname, std::string extdata);
669 /** Called after every WALLOPS command.
670 * @param user The user sending the WALLOPS
671 * @param text The content of the WALLOPS message
673 virtual void OnWallops(userrec* user, std::string text);
675 /** Called whenever a user's hostname is changed.
676 * This event triggers after the host has been set.
677 * @param user The user whos host is being changed
678 * @param newhost The new hostname being set
680 virtual void OnChangeHost(userrec* user, std::string newhost);
682 /** Called whenever a user's GECOS (realname) is changed.
683 * This event triggers after the name has been set.
684 * @param user The user who's GECOS is being changed
685 * @param gecos The new GECOS being set on the user
687 virtual void OnChangeName(userrec* user, std::string gecos);
689 /** Called whenever a gline is added by a local user.
690 * This method is triggered after the line is added.
691 * @param duration The duration of the line in seconds
692 * @param source The sender of the line
693 * @param reason The reason text to be displayed
694 * @param hostmask The hostmask to add
696 virtual void OnAddGLine(long duration, userrec* source, std::string reason, std::string hostmask);
698 /** Called whenever a zline is added by a local user.
699 * This method is triggered after the line is added.
700 * @param duration The duration of the line in seconds
701 * @param source The sender of the line
702 * @param reason The reason text to be displayed
703 * @param ipmask The hostmask to add
705 virtual void OnAddZLine(long duration, userrec* source, std::string reason, std::string ipmask);
707 /** Called whenever a kline is added by a local user.
708 * This method is triggered after the line is added.
709 * @param duration The duration of the line in seconds
710 * @param source The sender of the line
711 * @param reason The reason text to be displayed
712 * @param hostmask The hostmask to add
714 virtual void OnAddKLine(long duration, userrec* source, std::string reason, std::string hostmask);
716 /** Called whenever a qline is added by a local user.
717 * This method is triggered after the line is added.
718 * @param duration The duration of the line in seconds
719 * @param source The sender of the line
720 * @param reason The reason text to be displayed
721 * @param nickmask The hostmask to add
723 virtual void OnAddQLine(long duration, userrec* source, std::string reason, std::string nickmask);
725 /** Called whenever a eline is added by a local user.
726 * This method is triggered after the line is added.
727 * @param duration The duration of the line in seconds
728 * @param source The sender of the line
729 * @param reason The reason text to be displayed
730 * @param hostmask The hostmask to add
732 virtual void OnAddELine(long duration, userrec* source, std::string reason, std::string hostmask);
734 /** Called whenever a gline is deleted.
735 * This method is triggered after the line is deleted.
736 * @param source The user removing the line
737 * @param hostmask The hostmask to delete
739 virtual void OnDelGLine(userrec* source, std::string hostmask);
741 /** Called whenever a zline is deleted.
742 * This method is triggered after the line is deleted.
743 * @param source The user removing the line
744 * @param hostmask The hostmask to delete
746 virtual void OnDelZLine(userrec* source, std::string ipmask);
748 /** Called whenever a kline is deleted.
749 * This method is triggered after the line is deleted.
750 * @param source The user removing the line
751 * @param hostmask The hostmask to delete
753 virtual void OnDelKLine(userrec* source, std::string hostmask);
755 /** Called whenever a qline is deleted.
756 * This method is triggered after the line is deleted.
757 * @param source The user removing the line
758 * @param hostmask The hostmask to delete
760 virtual void OnDelQLine(userrec* source, std::string nickmask);
762 /** Called whenever a eline is deleted.
763 * This method is triggered after the line is deleted.
764 * @param source The user removing the line
765 * @param hostmask The hostmask to delete
767 virtual void OnDelELine(userrec* source, std::string hostmask);
769 /** Called before your module is unloaded to clean up Extensibles.
770 * This method is called once for every user and channel on the network,
771 * so that when your module unloads it may clear up any remaining data
772 * in the form of Extensibles added using Extensible::Extend().
773 * If the target_type variable is TYPE_USER, then void* item refers to
774 * a userrec*, otherwise it refers to a chanrec*.
775 * @param target_type The type of item being cleaned
776 * @param item A pointer to the item's class
778 virtual void OnCleanup(int target_type, void* item);
780 /** Called after any nickchange, local or remote. This can be used to track users after nickchanges
781 * have been applied. Please note that although you can see remote nickchanges through this function, you should
782 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
783 * check user->server before taking any action (including returning nonzero from the method).
784 * Because this method is called after the nickchange is taken place, no return values are possible
785 * to indicate forbidding of the nick change. Use OnUserPreNick for this.
786 * @param user The user changing their nick
787 * @param oldnick The old nickname of the user before the nickchange
789 virtual void OnUserPostNick(userrec* user, std::string oldnick);
791 /** Called before an action which requires a channel privilage check.
792 * This function is called before many functions which check a users status on a channel, for example
793 * before opping a user, deopping a user, kicking a user, etc.
794 * There are several values for access_type which indicate for what reason access is being checked.
796 * AC_KICK (0) - A user is being kicked<br>
797 * AC_DEOP (1) - a user is being deopped<br>
798 * AC_OP (2) - a user is being opped<br>
799 * AC_VOICE (3) - a user is being voiced<br>
800 * AC_DEVOICE (4) - a user is being devoiced<br>
801 * AC_HALFOP (5) - a user is being halfopped<br>
802 * AC_DEHALFOP (6) - a user is being dehalfopped<br>
803 * AC_INVITE (7) - a user is being invited<br>
804 * AC_GENERAL_MODE (8) - a user channel mode is being changed<br><br>
805 * Upon returning from your function you must return either ACR_DEFAULT, to indicate the module wishes
806 * to do nothing, or ACR_DENY where approprate to deny the action, and ACR_ALLOW where appropriate to allow
807 * the action. Please note that in the case of some access checks (such as AC_GENERAL_MODE) access may be
808 * denied 'upstream' causing other checks such as AC_DEOP to not be reached. Be very careful with use of the
809 * AC_GENERAL_MODE type, as it may inadvertently override the behaviour of other modules. When the access_type
810 * is AC_GENERAL_MODE, the destination of the mode will be NULL (as it has not yet been determined).
811 * @param source The source of the access check
812 * @param dest The destination of the access check
813 * @param channel The channel which is being checked
814 * @param access_type See above
816 virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type);
818 /** Called when a 005 numeric is about to be output.
819 * The module should modify the 005 numeric if needed to indicate its features.
820 * @param output The 005 string to be modified if neccessary.
822 virtual void On005Numeric(std::string &output);
824 /** Called when a client is disconnected by KILL.
825 * If a client is killed by a server, e.g. a nickname collision or protocol error,
827 * Return 1 from this function to prevent the kill, and 0 from this function to allow
828 * it as normal. If you prevent the kill no output will be sent to the client, it is
829 * down to your module to generate this information.
830 * NOTE: It is NOT advisable to stop kills which originate from servers or remote users.
831 * If you do so youre risking race conditions, desyncs and worse!
832 * @param source The user sending the KILL
833 * @param dest The user being killed
834 * @param reason The kill reason
835 * @return 1 to prevent the kill, 0 to allow
837 virtual int OnKill(userrec* source, userrec* dest, std::string reason);
839 /** Called when an oper wants to disconnect a remote user via KILL
840 * @param source The user sending the KILL
841 * @param dest The user being killed
842 * @param reason The kill reason
844 virtual void OnRemoteKill(userrec* source, userrec* dest, std::string reason);
846 /** Called whenever a module is loaded.
847 * mod will contain a pointer to the module, and string will contain its name,
848 * for example m_widgets.so. This function is primary for dependency checking,
849 * your module may decide to enable some extra features if it sees that you have
850 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
851 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
852 * but instead operate under reduced functionality, unless the dependency is
853 * absolutely neccessary (e.g. a module that extends the features of another
855 * @param mod A pointer to the new module
856 * @param name The new module's filename
858 virtual void OnLoadModule(Module* mod,std::string name);
860 /** Called whenever a module is unloaded.
861 * mod will contain a pointer to the module, and string will contain its name,
862 * for example m_widgets.so. This function is primary for dependency checking,
863 * your module may decide to enable some extra features if it sees that you have
864 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
865 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
866 * but instead operate under reduced functionality, unless the dependency is
867 * absolutely neccessary (e.g. a module that extends the features of another
869 * @param mod Pointer to the module being unloaded (still valid)
870 * @param name The filename of the module being unloaded
872 virtual void OnUnloadModule(Module* mod,std::string name);
874 /** Called once every five seconds for background processing.
875 * This timer can be used to control timed features. Its period is not accurate
876 * enough to be used as a clock, but it is gauranteed to be called at least once in
877 * any five second period, directly from the main loop of the server.
878 * @param curtime The current timer derived from time(2)
880 virtual void OnBackgroundTimer(time_t curtime);
882 /** Called whenever a list is needed for a listmode.
883 * For example, when a /MODE #channel +b (without any other parameters) is called,
884 * if a module was handling +b this function would be called. The function can then
885 * output any lists it wishes to. Please note that all modules will see all mode
886 * characters to provide the ability to extend each other, so please only output
887 * a list if the mode character given matches the one(s) you want to handle.
888 * @param user The user requesting the list
889 * @param channel The channel the list is for
890 * @param mode The listmode which a list is being requested on
892 virtual void OnSendList(userrec* user, chanrec* channel, char mode);
894 /** Called whenever any command is about to be executed.
895 * This event occurs for all registered commands, wether they are registered in the core,
896 * or another module, but it will not occur for invalid commands (e.g. ones which do not
897 * exist within the command table). By returning 1 from this method you may prevent the
898 * command being executed. If you do this, no output is created by the core, and it is
899 * down to your module to produce any output neccessary.
900 * Note that unless you return 1, you should not destroy any structures (e.g. by using
901 * Server::QuitUser) otherwise when the command's handler function executes after your
902 * method returns, it will be passed an invalid pointer to the user object and crash!)
903 * @param command The command being executed
904 * @param parameters An array of array of characters containing the parameters for the command
905 * @param pcnt The nuimber of parameters passed to the command
906 * @param user the user issuing the command
907 * @param validated True if the command has passed all checks, e.g. it is recognised, has enough parameters, the user has permission to execute it, etc.
908 * @return 1 to block the command, 0 to allow
910 virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated);
912 /** Called to check if a user who is connecting can now be allowed to register
913 * If any modules return false for this function, the user is held in the waiting
914 * state until all modules return true. For example a module which implements ident
915 * lookups will continue to return false for a user until their ident lookup is completed.
916 * Note that the registration timeout for a user overrides these checks, if the registration
917 * timeout is reached, the user is disconnected even if modules report that the user is
918 * not ready to connect.
919 * @param user The user to check
920 * @return true to indicate readiness, false if otherwise
922 virtual bool OnCheckReady(userrec* user);
924 /** Called whenever a user is about to register their connection (e.g. before the user
925 * is sent the MOTD etc). Modules can use this method if they are performing a function
926 * which must be done before the actual connection is completed (e.g. ident lookups,
927 * dnsbl lookups, etc).
928 * Note that you should NOT delete the user record here by causing a disconnection!
929 * Use OnUserConnect for that instead.
930 * @param user The user registering
932 virtual void OnUserRegister(userrec* user);
934 /** Called whenever a mode character is processed.
935 * Return 1 from this function to block the mode character from being processed entirely,
936 * so that you may perform your own code instead. Note that this method allows you to override
937 * modes defined by other modes, but this is NOT RECOMMENDED!
938 * @param user The user who is sending the mode
939 * @param chan The channel the mode is being sent to
940 * @param mode The mode character being set
941 * @param param The parameter for the mode or an empty string
942 * @param adding true of the mode is being added, false if it is being removed
943 * @param pcnt The parameter count for the mode (0 or 1)
944 * @return 1 to deny the mode, 0 to allow
946 virtual int OnRawMode(userrec* user, chanrec* chan, char mode, std::string param, bool adding, int pcnt);
948 /** Called whenever a user joins a channel, to determine if invite checks should go ahead or not.
949 * This method will always be called for each join, wether or not the channel is actually +i, and
950 * determines the outcome of an if statement around the whole section of invite checking code.
951 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
952 * @param user The user joining the channel
953 * @param chan The channel being joined
954 * @return 1 to explicitly allow the join, 0 to proceed as normal
956 virtual int OnCheckInvite(userrec* user, chanrec* chan);
958 /** Called whenever a user joins a channel, to determine if key checks should go ahead or not.
959 * This method will always be called for each join, wether or not the channel is actually +k, and
960 * determines the outcome of an if statement around the whole section of key checking code.
961 * if the user specified no key, the keygiven string will be a valid but empty value.
962 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
963 * @param user The user joining the channel
964 * @param chan The channel being joined
965 * @return 1 to explicitly allow the join, 0 to proceed as normal
967 virtual int OnCheckKey(userrec* user, chanrec* chan, std::string keygiven);
969 /** Called whenever a user joins a channel, to determine if channel limit checks should go ahead or not.
970 * This method will always be called for each join, wether or not the channel is actually +l, and
971 * determines the outcome of an if statement around the whole section of channel limit checking code.
972 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
973 * @param user The user joining the channel
974 * @param chan The channel being joined
975 * @return 1 to explicitly allow the join, 0 to proceed as normal
977 virtual int OnCheckLimit(userrec* user, chanrec* chan);
979 /** Called whenever a user joins a channel, to determine if banlist checks should go ahead or not.
980 * This method will always be called for each join, wether or not the user actually matches a channel ban, and
981 * determines the outcome of an if statement around the whole section of ban checking code.
982 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
983 * @param user The user joining the channel
984 * @param chan The channel being joined
985 * @return 1 to explicitly allow the join, 0 to proceed as normal
987 virtual int OnCheckBan(userrec* user, chanrec* chan);
989 /** Called on all /STATS commands
990 * This method is triggered for all /STATS use, including stats symbols handled by the core.
991 * @param symbol the symbol provided to /STATS
992 * @user the user issuing the /STATS command
993 * @return 1 to block the /STATS from being processed by the core, 0 to allow it
995 virtual int OnStats(char symbol, userrec* user);
997 /** Called whenever a change of a local users displayed host is attempted.
998 * Return 1 to deny the host change, or 0 to allow it.
999 * @param user The user whos host will be changed
1000 * @param newhost The new hostname
1001 * @return 1 to deny the host change, 0 to allow
1003 virtual int OnChangeLocalUserHost(userrec* user, std::string newhost);
1005 /** Called whenever a change of a local users GECOS (fullname field) is attempted.
1006 * return 1 to deny the name change, or 0 to allow it.
1007 * @param user The user whos GECOS will be changed
1008 * @param newhost The new GECOS
1009 * @return 1 to deny the GECOS change, 0 to allow
1011 virtual int OnChangeLocalUserGECOS(userrec* user, std::string newhost);
1013 /** Called whenever a topic is changed by a local user.
1014 * Return 1 to deny the topic change, or 0 to allow it.
1015 * @param user The user changing the topic
1016 * @param chan The channels who's topic is being changed
1017 * @param topic The actual topic text
1018 * @param 1 to block the topic change, 0 to allow
1020 virtual int OnLocalTopicChange(userrec* user, chanrec* chan, std::string topic);
1022 /** Called whenever a local topic has been changed.
1023 * To block topic changes you must use OnLocalTopicChange instead.
1024 * @param user The user changing the topic
1025 * @param chan The channels who's topic is being changed
1026 * @param topic The actual topic text
1028 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, std::string topic);
1030 /** Called whenever an Event class is sent to all module by another module.
1031 * Please see the documentation of Event::Send() for further information. The Event sent can
1032 * always be assumed to be non-NULL, you should *always* check the value of Event::GetEventID()
1033 * before doing anything to the event data, and you should *not* change the event data in any way!
1034 * @param event The Event class being received
1036 virtual void OnEvent(Event* event);
1038 /** Called whenever a Request class is sent to your module by another module.
1039 * Please see the documentation of Request::Send() for further information. The Request sent
1040 * can always be assumed to be non-NULL, you should not change the request object or its data.
1041 * Your method may return arbitary data in the char* result which the requesting module
1042 * may be able to use for pre-determined purposes (e.g. the results of an SQL query, etc).
1043 * @param request The Request class being received
1045 virtual char* OnRequest(Request* request);
1047 /** Called whenever an oper password is to be compared to what a user has input.
1048 * The password field (from the config file) is in 'password' and is to be compared against
1049 * 'input'. This method allows for encryption of oper passwords and much more besides.
1050 * You should return a nonzero value if you want to allow the comparison or zero if you wish
1052 * @param password The oper's password
1053 * @param input The password entered
1054 * @return 1 to match the passwords, 0 to do nothing
1056 virtual int OnOperCompare(std::string password, std::string input);
1058 /** Called whenever a user is given usermode +o, anywhere on the network.
1059 * You cannot override this and prevent it from happening as it is already happened and
1060 * such a task must be performed by another server. You can however bounce modes by sending
1061 * servermodes out to reverse mode changes.
1062 * @param user The user who is opering
1064 virtual void OnGlobalOper(userrec* user);
1066 /** Called whenever a user connects, anywhere on the network.
1067 * This event is informational only. You should not change any user information in this
1068 * event. To do so, use the OnUserConnect method to change the state of local users.
1069 * @param user The user who is connecting
1071 virtual void OnGlobalConnect(userrec* user);
1073 /** Called whenever a ban is added to a channel's list.
1074 * Return a non-zero value to 'eat' the mode change and prevent the ban from being added.
1075 * @param source The user adding the ban
1076 * @param channel The channel the ban is being added to
1077 * @param banmask The ban mask being added
1078 * @return 1 to block the ban, 0 to continue as normal
1080 virtual int OnAddBan(userrec* source, chanrec* channel,std::string banmask);
1082 /** Called whenever a ban is removed from a channel's list.
1083 * Return a non-zero value to 'eat' the mode change and prevent the ban from being removed.
1084 * @param source The user deleting the ban
1085 * @param channel The channel the ban is being deleted from
1086 * @param banmask The ban mask being deleted
1087 * @return 1 to block the unban, 0 to continue as normal
1089 virtual int OnDelBan(userrec* source, chanrec* channel,std::string banmask);
1091 /** Called immediately after any connection is accepted. This is intended for raw socket
1092 * processing (e.g. modules which wrap the tcp connection within another library) and provides
1093 * no information relating to a user record as the connection has not been assigned yet.
1094 * There are no return values from this call as all modules get an opportunity if required to
1095 * process the connection.
1096 * @param fd The file descriptor returned from accept()
1097 * @param ip The IP address of the connecting user
1098 * @param localport The local port number the user connected to
1100 virtual void OnRawSocketAccept(int fd, std::string ip, int localport);
1102 /** Called immediately before any write() operation on a user's socket in the core. Because
1103 * this event is a low level event no user information is associated with it. It is intended
1104 * for use by modules which may wrap connections within another API such as SSL for example.
1105 * return a non-zero result if you have handled the write operation, in which case the core
1106 * will not call write().
1107 * @param fd The file descriptor of the socket
1108 * @param buffer A char* buffer being written
1109 * @param Number of characters to write
1110 * @return Number of characters actually written or 0 if you didn't handle the operation
1112 virtual int OnRawSocketWrite(int fd, char* buffer, int count);
1114 /** Called immediately before any socket is closed. When this event is called, shutdown()
1115 * has not yet been called on the socket.
1116 * @param fd The file descriptor of the socket prior to close()
1118 virtual void OnRawSocketClose(int fd);
1120 /** Called immediately before any read() operation on a client socket in the core.
1121 * This occurs AFTER the select() or poll() so there is always data waiting to be read
1122 * when this event occurs.
1123 * Your event should return 1 if it has handled the reading itself, which prevents the core
1124 * just using read(). You should place any data read into buffer, up to but NOT GREATER THAN
1125 * the value of count. The value of readresult must be identical to an actual result that might
1126 * be returned from the read() system call, for example, number of bytes read upon success,
1127 * 0 upon EOF or closed socket, and -1 for error. If your function returns a nonzero value,
1128 * you MUST set readresult.
1129 * @param fd The file descriptor of the socket
1130 * @param buffer A char* buffer being read to
1131 * @param count The size of the buffer
1132 * @param readresult The amount of characters read, or 0
1133 * @return nonzero if the event was handled, in which case readresult must be valid on exit
1135 virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult);
1139 /** Allows server output and query functions
1140 * This class contains methods which allow a module to query the state of the irc server, and produce
1141 * output to users and other servers. All modules should instantiate at least one copy of this class,
1142 * and use its member functions to perform their tasks.
1144 class Server : public classbase
1147 /** Default constructor.
1148 * Creates a Server object.
1151 /** Default destructor.
1152 * Destroys a Server object.
1155 /** Obtains a pointer to the server's ServerConfig object.
1156 * The ServerConfig object contains most of the configuration data
1157 * of the IRC server, as read from the config file by the core.
1159 ServerConfig* GetConfig();
1160 /** Sends text to all opers.
1161 * This method sends a server notice to all opers with the usermode +s.
1163 virtual void SendOpers(std::string s);
1164 /** Returns the version string of this server
1166 std::string GetVersion();
1167 /** Writes a log string.
1168 * This method writes a line of text to the log. If the level given is lower than the
1169 * level given in the configuration, this command has no effect.
1171 virtual void Log(int level, std::string s);
1172 /** Sends a line of text down a TCP/IP socket.
1173 * This method writes a line of text to an established socket, cutting it to 510 characters
1174 * plus a carriage return and linefeed if required.
1176 virtual void Send(int Socket, std::string s);
1177 /** Sends text from the server to a socket.
1178 * This method writes a line of text to an established socket, with the servername prepended
1179 * as used by numerics (see RFC 1459)
1181 virtual void SendServ(int Socket, std::string s);
1182 /** Writes text to a channel, but from a server, including all.
1183 * This can be used to send server notices to a group of users.
1185 virtual void SendChannelServerNotice(std::string ServName, chanrec* Channel, std::string text);
1186 /** Sends text from a user to a socket.
1187 * This method writes a line of text to an established socket, with the given user's nick/ident
1188 * /host combination prepended, as used in PRIVSG etc commands (see RFC 1459)
1190 virtual void SendFrom(int Socket, userrec* User, std::string s);
1191 /** Sends text from a user to another user.
1192 * This method writes a line of text to a user, with a user's nick/ident
1193 * /host combination prepended, as used in PRIVMSG etc commands (see RFC 1459)
1194 * If you specify NULL as the source, then the data will originate from the
1195 * local server, e.g. instead of:
1197 * :user!ident@host TEXT
1199 * The format will become:
1203 * Which is useful for numerics and server notices to single users, etc.
1205 virtual void SendTo(userrec* Source, userrec* Dest, std::string s);
1206 /** Sends text from a user to a channel (mulicast).
1207 * This method writes a line of text to a channel, with the given user's nick/ident
1208 * /host combination prepended, as used in PRIVMSG etc commands (see RFC 1459). If the
1209 * IncludeSender flag is set, then the text is also sent back to the user from which
1210 * it originated, as seen in MODE (see RFC 1459).
1212 virtual void SendChannel(userrec* User, chanrec* Channel, std::string s,bool IncludeSender);
1213 /** Returns true if two users share a common channel.
1214 * This method is used internally by the NICK and QUIT commands, and the Server::SendCommon
1217 virtual bool CommonChannels(userrec* u1, userrec* u2);
1218 /** Sends text from a user to one or more channels (mulicast).
1219 * This method writes a line of text to all users which share a common channel with a given
1220 * user, with the user's nick/ident/host combination prepended, as used in PRIVMSG etc
1221 * commands (see RFC 1459). If the IncludeSender flag is set, then the text is also sent
1222 * back to the user from which it originated, as seen in NICK (see RFC 1459). Otherwise, it
1223 * is only sent to the other recipients, as seen in QUIT.
1225 virtual void SendCommon(userrec* User, std::string text,bool IncludeSender);
1226 /** Sends a WALLOPS message.
1227 * This method writes a WALLOPS message to all users with the +w flag, originating from the
1230 virtual void SendWallops(userrec* User, std::string text);
1232 /** Returns true if a nick is valid.
1233 * Nicks for unregistered connections will return false.
1235 virtual bool IsNick(std::string nick);
1236 /** Returns a count of the number of users on a channel.
1237 * This will NEVER be 0, as if the chanrec exists, it will have at least one user in the channel.
1239 virtual int CountUsers(chanrec* c);
1240 /** Attempts to look up a nick and return a pointer to it.
1241 * This function will return NULL if the nick does not exist.
1243 virtual userrec* FindNick(std::string nick);
1244 /** Attempts to look up a nick using the file descriptor associated with that nick.
1245 * This function will return NULL if the file descriptor is not associated with a valid user.
1247 virtual userrec* FindDescriptor(int socket);
1248 /** Attempts to look up a channel and return a pointer to it.
1249 * This function will return NULL if the channel does not exist.
1251 virtual chanrec* FindChannel(std::string channel);
1252 /** Attempts to look up a user's privilages on a channel.
1253 * This function will return a string containing either @, %, +, or an empty string,
1254 * representing the user's privilages upon the channel you specify.
1256 virtual std::string ChanMode(userrec* User, chanrec* Chan);
1257 /** Checks if a user is on a channel.
1258 * This function will return true or false to indicate if user 'User' is on channel 'Chan'.
1260 virtual bool IsOnChannel(userrec* User, chanrec* Chan);
1261 /** Returns the server name of the server where the module is loaded.
1263 virtual std::string GetServerName();
1264 /** Returns the network name, global to all linked servers.
1266 virtual std::string GetNetworkName();
1267 /** Returns the server description string of the local server
1269 virtual std::string GetServerDescription();
1270 /** Returns the information of the server as returned by the /ADMIN command.
1271 * See the Admin class for further information of the return value. The members
1272 * Admin::Nick, Admin::Email and Admin::Name contain the information for the
1273 * server where the module is loaded.
1275 virtual Admin GetAdmin();
1276 /** Adds an extended mode letter which is parsed by a module.
1277 * This allows modules to add extra mode letters, e.g. +x for hostcloak.
1278 * the "type" parameter is either MT_CHANNEL, MT_CLIENT, or MT_SERVER, to
1279 * indicate wether the mode is a channel mode, a client mode, or a server mode.
1280 * requires_oper is used with MT_CLIENT type modes only to indicate the mode can only
1281 * be set or unset by an oper. If this is used for MT_CHANNEL type modes it is ignored.
1282 * params_when_on is the number of modes to expect when the mode is turned on
1283 * (for type MT_CHANNEL only), e.g. with mode +k, this would have a value of 1.
1284 * the params_when_off value has a similar value to params_when_on, except it indicates
1285 * the number of parameters to expect when the mode is disabled. Modes which act in a similar
1286 * way to channel mode +l (e.g. require a parameter to enable, but not to disable) should
1287 * use this parameter. The function returns false if the mode is unavailable, and will not
1288 * attempt to allocate another character, as this will confuse users. This also means that
1289 * as only one module can claim a specific mode character, the core does not need to keep track
1290 * of which modules own which modes, which speeds up operation of the server. In this version,
1291 * a mode can have at most one parameter, attempting to use more parameters will have undefined
1294 virtual bool AddExtendedMode(char modechar, int type, bool requires_oper, int params_when_on, int params_when_off);
1296 /** Adds an extended mode letter which is parsed by a module and handled in a list fashion.
1297 * This call is used to implement modes like +q and +a. The characteristics of these modes are
1300 * (1) They are ALWAYS on channels, not on users, therefore their type is MT_CHANNEL
1302 * (2) They always take exactly one parameter when being added or removed
1304 * (3) They can be set multiple times, usually on users in channels
1306 * (4) The mode and its parameter are NOT stored in the channels modes structure
1308 * It is down to the module handling the mode to maintain state and determine what 'items' (e.g. users,
1309 * or a banlist) have the mode set on them, and process the modes at the correct times, e.g. during access
1310 * checks on channels, etc. When the extended mode is triggered the OnExtendedMode method will be triggered
1311 * as above. Note that the target you are given will be a channel, if for example your mode is set 'on a user'
1312 * (in for example +a) you must use Server::Find to locate the user the mode is operating on.
1313 * Your mode handler may return 1 to handle the mode AND tell the core to display the mode change, e.g.
1314 * '+aaa one two three' in the case of the mode for 'two', or it may return -1 to 'eat' the mode change,
1315 * so the above example would become '+aa one three' after processing.
1317 virtual bool AddExtendedListMode(char modechar);
1319 /** Adds a command to the command table.
1320 * This allows modules to add extra commands into the command table. You must place a function within your
1321 * module which is is of type handlerfunc:
1323 * typedef void (handlerfunc) (char**, int, userrec*);
1325 * void handle_kill(char **parameters, int pcnt, userrec *user)
1327 * When the command is typed, the parameters will be placed into the parameters array (similar to argv) and
1328 * the parameter count will be placed into pcnt (similar to argv). There will never be any less parameters
1329 * than the 'minparams' value you specified when creating the command. The *user parameter is the class of
1330 * the user which caused the command to trigger, who will always have the flag you specified in 'flags' when
1331 * creating the initial command. For example to create an oper only command create the commands with flags='o'.
1332 * The source parameter is used for resource tracking, and should contain the name of your module (with file
1333 * extension) e.g. "m_blarp.so". If you place the wrong identifier here, you can cause crashes if your module
1336 virtual void AddCommand(command_t *f);
1338 /** Sends a servermode.
1339 * you must format the parameters array with the target, modes and parameters for those modes.
1345 * modes[0] = ChannelName;
1349 * modes[2] = user->nick;
1351 * Srv->SendMode(modes,3,user);
1353 * The modes will originate from the server where the command was issued, however responses (e.g. numerics)
1354 * will be sent to the user you provide as the third parameter.
1355 * You must be sure to get the number of parameters correct in the pcnt parameter otherwise you could leave
1356 * your server in an unstable state!
1359 virtual void SendMode(char **parameters, int pcnt, userrec *user);
1361 /** Sends to all users matching a mode mask
1362 * You must specify one or more usermodes as the first parameter. These can be RFC specified modes such as +i,
1363 * or module provided modes, including ones provided by your own module.
1364 * In the second parameter you must place a flag value which indicates wether the modes you have given will be
1365 * logically ANDed or OR'ed. You may use one of either WM_AND or WM_OR.
1366 * for example, if you were to use:
1368 * Serv->SendToModeMask("xi", WM_OR, "m00");
1370 * Then the text 'm00' will be sent to all users with EITHER mode x or i. Conversely if you used WM_AND, the
1371 * user must have both modes set to receive the message.
1373 virtual void SendToModeMask(std::string modes, int flags, std::string text);
1375 /** Forces a user to join a channel.
1376 * This is similar to svsjoin and can be used to implement redirection, etc.
1377 * On success, the return value is a valid pointer to a chanrec* of the channel the user was joined to.
1378 * On failure, the result is NULL.
1380 virtual chanrec* JoinUserToChannel(userrec* user, std::string cname, std::string key);
1382 /** Forces a user to part a channel.
1383 * This is similar to svspart and can be used to implement redirection, etc.
1384 * Although the return value of this function is a pointer to a channel record, the returned data is
1385 * undefined and should not be read or written to. This behaviour may be changed in a future version.
1387 virtual chanrec* PartUserFromChannel(userrec* user, std::string cname, std::string reason);
1389 /** Forces a user nickchange.
1390 * This command works similarly to SVSNICK, and can be used to implement Q-lines etc.
1391 * If you specify an invalid nickname, the nick change will be dropped and the target user will receive
1392 * the error numeric for it.
1394 virtual void ChangeUserNick(userrec* user, std::string nickname);
1396 /** Forces a user to quit with the specified reason.
1397 * To the user, it will appear as if they typed /QUIT themselves, except for the fact that this function
1398 * may bypass the quit prefix specified in the config file.
1402 * Once you call this function, userrec* user will immediately become INVALID. You MUST NOT write to, or
1403 * read from this pointer after calling the QuitUser method UNDER ANY CIRCUMSTANCES! The best course of
1404 * action after calling this method is to immediately bail from your handler.
1406 virtual void QuitUser(userrec* user, std::string reason);
1408 /** Matches text against a glob pattern.
1409 * Uses the ircd's internal matching function to match string against a globbing pattern, e.g. *!*@*.com
1410 * Returns true if the literal successfully matches the pattern, false if otherwise.
1412 virtual bool MatchText(std::string sliteral, std::string spattern);
1414 /** Calls the handler for a command, either implemented by the core or by another module.
1415 * You can use this function to trigger other commands in the ircd, such as PRIVMSG, JOIN,
1416 * KICK etc, or even as a method of callback. By defining command names that are untypeable
1417 * for users on irc (e.g. those which contain a \r or \n) you may use them as callback identifiers.
1418 * The first parameter to this method is the name of the command handler you wish to call, e.g.
1419 * PRIVMSG. This will be a command handler previously registered by the core or wih AddCommand().
1420 * The second parameter is an array of parameters, and the third parameter is a count of parameters
1421 * in the array. If you do not pass enough parameters to meet the minimum needed by the handler, the
1422 * functiom will silently ignore it. The final parameter is the user executing the command handler,
1423 * used for privilage checks, etc.
1425 virtual void CallCommandHandler(std::string commandname, char** parameters, int pcnt, userrec* user);
1427 virtual bool IsValidModuleCommand(std::string commandname, int pcnt, userrec* user);
1429 /** Change displayed hostname of a user.
1430 * You should always call this method to change a user's host rather than writing directly to the
1431 * dhost member of userrec, as any change applied via this method will be propogated to any
1434 virtual void ChangeHost(userrec* user, std::string host);
1436 /** Change GECOS (fullname) of a user.
1437 * You should always call this method to change a user's GECOS rather than writing directly to the
1438 * fullname member of userrec, as any change applied via this method will be propogated to any
1441 virtual void ChangeGECOS(userrec* user, std::string gecos);
1443 /** Returns true if the servername you give is ulined.
1444 * ULined servers have extra privilages. They are allowed to change nicknames on remote servers,
1445 * change modes of clients which are on remote servers and set modes of channels where there are
1446 * no channel operators for that channel on the ulined server, amongst other things. Ulined server
1447 * data is also broadcast across the mesh at all times as opposed to selectively messaged in the
1448 * case of normal servers, as many ulined server types (such as services) do not support meshed
1449 * links and must operate in this manner.
1451 virtual bool IsUlined(std::string server);
1453 /** Fetches the userlist of a channel. This function must be here and not a member of userrec or
1454 * chanrec due to include constraints.
1456 virtual chanuserlist GetUsers(chanrec* chan);
1458 /** Remove a user's connection to the irc server, but leave their client in existence in the
1459 * user hash. When you call this function, the user's file descriptor will be replaced with the
1460 * value of FD_MAGIC_NUMBER and their old file descriptor will be closed. This idle client will
1461 * remain until it is restored with a valid file descriptor, or is removed from IRC by an operator
1462 * After this call, the pointer to user will be invalid.
1464 virtual bool UserToPseudo(userrec* user,std::string message);
1466 /** This user takes one user, and switches their file descriptor with another user, so that one user
1467 * "becomes" the other. The user in 'alive' is booted off the server with the given message. The user
1468 * referred to by 'zombie' should have previously been locked with Server::ZombifyUser, otherwise
1469 * stale sockets and file descriptor leaks can occur. After this call, the pointer to alive will be
1470 * invalid, and the pointer to zombie will be equivalent in effect to the old pointer to alive.
1472 virtual bool PseudoToUser(userrec* alive,userrec* zombie,std::string message);
1475 * The G-line is propogated to all of the servers in the mesh and enforced as soon as it is added.
1476 * The duration must be in seconds, however you can use the Server::CalcDuration method to convert
1477 * durations into the 1w2d3h3m6s format used by /GLINE etc. The source is an arbitary string used
1478 * to indicate who or what sent the data, usually this is the nickname of a person, or a server
1481 virtual void AddGLine(long duration, std::string source, std::string reason, std::string hostmask);
1484 * The Q-line is propogated to all of the servers in the mesh and enforced as soon as it is added.
1485 * The duration must be in seconds, however you can use the Server::CalcDuration method to convert
1486 * durations into the 1w2d3h3m6s format used by /GLINE etc. The source is an arbitary string used
1487 * to indicate who or what sent the data, usually this is the nickname of a person, or a server
1490 virtual void AddQLine(long duration, std::string source, std::string reason, std::string nickname);
1493 * The Z-line is propogated to all of the servers in the mesh and enforced as soon as it is added.
1494 * The duration must be in seconds, however you can use the Server::CalcDuration method to convert
1495 * durations into the 1w2d3h3m6s format used by /GLINE etc. The source is an arbitary string used
1496 * to indicate who or what sent the data, usually this is the nickname of a person, or a server
1499 virtual void AddZLine(long duration, std::string source, std::string reason, std::string ipaddr);
1502 * The K-line is enforced as soon as it is added.
1503 * The duration must be in seconds, however you can use the Server::CalcDuration method to convert
1504 * durations into the 1w2d3h3m6s format used by /GLINE etc. The source is an arbitary string used
1505 * to indicate who or what sent the data, usually this is the nickname of a person, or a server
1508 virtual void AddKLine(long duration, std::string source, std::string reason, std::string hostmask);
1511 * The E-line is enforced as soon as it is added.
1512 * The duration must be in seconds, however you can use the Server::CalcDuration method to convert
1513 * durations into the 1w2d3h3m6s format used by /GLINE etc. The source is an arbitary string used
1514 * to indicate who or what sent the data, usually this is the nickname of a person, or a server
1517 virtual void AddELine(long duration, std::string source, std::string reason, std::string hostmask);
1519 /** Deletes a G-Line from all servers on the mesh
1521 virtual bool DelGLine(std::string hostmask);
1523 /** Deletes a Q-Line from all servers on the mesh
1525 virtual bool DelQLine(std::string nickname);
1527 /** Deletes a Z-Line from all servers on the mesh
1529 virtual bool DelZLine(std::string ipaddr);
1531 /** Deletes a local K-Line
1533 virtual bool DelKLine(std::string hostmask);
1535 /** Deletes a local E-Line
1537 virtual bool DelELine(std::string hostmask);
1539 /** Calculates a duration
1540 * This method will take a string containing a formatted duration (e.g. "1w2d") and return its value
1541 * as a total number of seconds. This is the same function used internally by /GLINE etc to set
1544 virtual long CalcDuration(std::string duration);
1546 /** Returns true if a nick!ident@host string is correctly formatted, false if otherwise.
1548 virtual bool IsValidMask(std::string mask);
1550 /** This function finds a module by name.
1551 * You must provide the filename of the module. If the module cannot be found (is not loaded)
1552 * the function will return NULL.
1554 virtual Module* FindModule(std::string name);
1556 /** Adds a class derived from InspSocket to the server's socket engine.
1558 virtual void AddSocket(InspSocket* sock);
1560 /** Forcibly removes a class derived from InspSocket from the servers socket engine.
1562 virtual void RemoveSocket(InspSocket* sock);
1564 /** Deletes a class derived from InspSocket from the server's socket engine.
1566 virtual void DelSocket(InspSocket* sock);
1568 virtual void RehashServer();
1572 #define CONF_NOT_A_NUMBER 0x000010
1573 #define CONF_NOT_UNSIGNED 0x000080
1574 #define CONF_VALUE_NOT_FOUND 0x000100
1575 #define CONF_FILE_NOT_FOUND 0x000200
1578 /** Allows reading of values from configuration files
1579 * This class allows a module to read from either the main configuration file (inspircd.conf) or from
1580 * a module-specified configuration file. It may either be instantiated with one parameter or none.
1581 * Constructing the class using one parameter allows you to specify a path to your own configuration
1582 * file, otherwise, inspircd.conf is read.
1584 class ConfigReader : public classbase
1587 /** The contents of the configuration file
1588 * This protected member should never be accessed by a module (and cannot be accessed unless the
1589 * core is changed). It will contain a pointer to the configuration file data with unneeded data
1590 * (such as comments) stripped from it.
1592 std::stringstream *cache;
1593 std::stringstream *errorlog;
1594 /** Used to store errors
1600 /** Default constructor.
1601 * This constructor initialises the ConfigReader class to read the inspircd.conf file
1602 * as specified when running ./configure.
1604 ConfigReader(); // default constructor reads ircd.conf
1605 /** Overloaded constructor.
1606 * This constructor initialises the ConfigReader class to read a user-specified config file
1608 ConfigReader(std::string filename); // read a module-specific config
1609 /** Default destructor.
1610 * This method destroys the ConfigReader class.
1613 /** Retrieves a value from the config file.
1614 * This method retrieves a value from the config file. Where multiple copies of the tag
1615 * exist in the config file, index indicates which of the values to retrieve.
1617 std::string ReadValue(std::string tag, std::string name, int index);
1618 /** Retrieves a boolean value from the config file.
1619 * This method retrieves a boolean value from the config file. Where multiple copies of the tag
1620 * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes"
1621 * and "true" in the config file count as true to ReadFlag, and any other value counts as false.
1623 bool ReadFlag(std::string tag, std::string name, int index);
1624 /** Retrieves an integer value from the config file.
1625 * This method retrieves an integer value from the config file. Where multiple copies of the tag
1626 * exist in the config file, index indicates which of the values to retrieve. Any invalid integer
1627 * values in the tag will cause the objects error value to be set, and any call to GetError() will
1628 * return CONF_INVALID_NUMBER to be returned. needs_unsigned is set if the number must be unsigned.
1629 * If a signed number is placed into a tag which is specified unsigned, 0 will be returned and GetError()
1630 * will return CONF_NOT_UNSIGNED
1632 long ReadInteger(std::string tag, std::string name, int index, bool needs_unsigned);
1633 /** Returns the last error to occur.
1634 * Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition.
1635 * A call to GetError() resets the error flag back to 0.
1638 /** Counts the number of times a given tag appears in the config file.
1639 * This method counts the number of times a tag appears in a config file, for use where
1640 * there are several tags of the same kind, e.g. with opers and connect types. It can be
1641 * used with the index value of ConfigReader::ReadValue to loop through all copies of a
1642 * multiple instance tag.
1644 int Enumerate(std::string tag);
1645 /** Returns true if a config file is valid.
1646 * This method is partially implemented and will only return false if the config
1647 * file does not exist or could not be opened.
1650 /** Dumps the list of errors in a config file to an output location. If bail is true,
1651 * then the program will abort. If bail is false and user points to a valid user
1652 * record, the error report will be spooled to the given user by means of NOTICE.
1653 * if bool is false AND user is false, the error report will be spooled to all opers
1654 * by means of a NOTICE to all opers.
1656 void DumpErrors(bool bail,userrec* user);
1658 /** Returns the number of items within a tag.
1659 * For example if the tag was <test tag="blah" data="foo"> then this
1660 * function would return 2. Spaces and newlines both qualify as valid seperators
1663 int EnumerateValues(std::string tag, int index);
1668 /** Caches a text file into memory and can be used to retrieve lines from it.
1669 * This class contains methods for read-only manipulation of a text file in memory.
1670 * Either use the constructor type with one parameter to load a file into memory
1671 * at construction, or use the LoadFile method to load a file.
1673 class FileReader : public classbase
1677 /** Default constructor.
1678 * This method does not load any file into memory, you must use the LoadFile method
1679 * after constructing the class this way.
1683 /** Secondary constructor.
1684 * This method initialises the class with a file loaded into it ready for GetLine and
1685 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1688 FileReader(std::string filename);
1690 /** Default destructor.
1691 * This deletes the memory allocated to the file.
1695 /** Used to load a file.
1696 * This method loads a file into the class ready for GetLine and
1697 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1700 void LoadFile(std::string filename);
1702 /** Returns true if the file exists
1703 * This function will return false if the file could not be opened.
1707 /** Retrieve one line from the file.
1708 * This method retrieves one line from the text file. If an empty non-NULL string is returned,
1709 * the index was out of bounds, or the line had no data on it.
1711 std::string GetLine(int x);
1713 /** Returns the size of the file in lines.
1714 * This method returns the number of lines in the read file. If it is 0, no lines have been
1715 * read into memory, either because the file is empty or it does not exist, or cannot be
1716 * opened due to permission problems.
1722 /** Instantiates classes inherited from Module
1723 * This class creates a class inherited from type Module, using new. This is to allow for modules
1724 * to create many different variants of Module, dependent on architecture, configuration, etc.
1725 * In most cases, the simple class shown in the example module m_foobar.so will suffice for most
1728 class ModuleFactory : public classbase
1732 virtual ~ModuleFactory() { }
1733 /** Creates a new module.
1734 * Your inherited class of ModuleFactory must return a pointer to your Module class
1735 * using this method.
1737 virtual Module * CreateModule(Server* Me) = 0;
1741 typedef DLLFactory<ModuleFactory> ircd_module;
1743 bool ModeDefined(char c, int i);
1744 bool ModeDefinedOper(char c, int i);
1745 int ModeDefinedOn(char c, int i);
1746 int ModeDefinedOff(char c, int i);
1747 void ModeMakeList(char modechar);
1748 bool ModeIsListMode(char modechar, int type);