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 * ---------------------------------------------------
21 /** Used with OnAccessCheck() method of modules
23 enum AccessControlType {
24 ACR_DEFAULT, // Do default action (act as if the module isnt even loaded)
25 ACR_DENY, // deny the action
26 ACR_ALLOW, // allow the action
27 AC_KICK, // a user is being kicked
28 AC_DEOP, // a user is being deopped
29 AC_OP, // a user is being opped
30 AC_VOICE, // a user is being voiced
31 AC_DEVOICE, // a user is being devoiced
32 AC_HALFOP, // a user is being halfopped
33 AC_DEHALFOP, // a user is being dehalfopped
34 AC_INVITE, // a user is being invited
35 AC_GENERAL_MODE // a channel mode is being changed
38 /** Used to define a set of behavior bits for a module
41 VF_STATIC = 1, // module is static, cannot be /unloadmodule'd
42 VF_VENDOR = 2, // module is a vendor module (came in the original tarball, not 3rd party)
43 VF_SERVICEPROVIDER = 4, // module provides a service to other modules (can be a dependency)
44 VF_COMMON = 8 // module needs to be common on all servers in a network to link
52 enum TargetTypeFlags {
63 #include "inspsocket.h"
73 // Forward-delacare module for ModuleMessage etc
76 /** Low level definition of a FileReader classes file cache area
78 typedef std::deque<std::string> file_cache;
79 typedef file_cache string_list;
81 /** Holds a list of 'published features' for modules.
83 typedef std::map<std::string,Module*> featurelist;
86 * This #define allows us to call a method in all
87 * loaded modules in a readable simple way, e.g.:
88 * 'FOREACH_MOD(I_OnXonnwxr,OnConnect(user));'
90 #define FOREACH_MOD(y,x) if (ServerInstance->Config->global_implementation[y] > 0) { \
91 for (int _i = 0; _i <= ServerInstance->GetModuleCount(); _i++) { \
92 if (ServerInstance->Config->implement_lists[_i][y]) \
95 ServerInstance->modules[_i]->x ; \
97 catch (ModuleException& modexcept) \
99 ServerInstance->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
104 #define FOREACH_MOD_I(z,y,x) if (z->Config->global_implementation[y] > 0) { \
105 for (int _i = 0; _i <= z->GetModuleCount(); _i++) { \
106 if (z->Config->implement_lists[_i][y]) \
109 z->modules[_i]->x ; \
111 catch (ModuleException& modexcept) \
113 z->Log(DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
118 * This define is similar to the one above but returns a result in MOD_RESULT.
119 * The first module to return a nonzero result is the value to be accepted,
120 * and any modules after are ignored.
122 #define FOREACH_RESULT(y,x) { if (ServerInstance->Config->global_implementation[y] > 0) { \
124 for (int _i = 0; _i <= ServerInstance->GetModuleCount(); _i++) { \
125 if (ServerInstance->Config->implement_lists[_i][y]) { \
128 int res = ServerInstance->modules[_i]->x ; \
134 catch (ModuleException& modexcept) \
136 ServerInstance->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
143 #define FOREACH_RESULT_I(z,y,x) { if (z->Config->global_implementation[y] > 0) { \
145 for (int _i = 0; _i <= z->GetModuleCount(); _i++) { \
146 if (z->Config->implement_lists[_i][y]) { \
149 int res = z->modules[_i]->x ; \
155 catch (ModuleException& modexcept) \
157 z->Log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
164 #define FD_MAGIC_NUMBER -42
168 #define IS_LOCAL(x) ((x->GetFd() > -1) && (x->GetFd() <= MAX_DESCRIPTORS))
169 #define IS_REMOTE(x) (x->GetFd() < 0)
170 #define IS_MODULE_CREATED(x) (x->GetFd() == FD_MAGIC_NUMBER)
172 /** Holds a module's Version information
173 * The four members (set by the constructor only) indicate details as to the version number
174 * of a module. A class of type Version is returned by the GetVersion method of the Module class.
176 class Version : public classbase
179 const int Major, Minor, Revision, Build, Flags;
180 Version(int major, int minor, int revision, int build, int flags);
183 /** The ModuleMessage class is the base class of Request and Event
184 * This class is used to represent a basic data structure which is passed
185 * between modules for safe inter-module communications.
187 class ModuleMessage : public Extensible
190 virtual ~ModuleMessage() {};
193 /** The Request class is a unicast message directed at a given module.
194 * When this class is properly instantiated it may be sent to a module
195 * using the Send() method, which will call the given module's OnRequest
196 * method with this class as its parameter.
198 class Request : public ModuleMessage
201 /** This member holds a pointer to arbitary data set by the emitter of the message
204 /** This should be a null-terminated string identifying the type of request,
205 * all modules should define this and use it to determine the nature of the
206 * request before they attempt to cast the Request in any way.
209 /** This is a pointer to the sender of the message, which can be used to
210 * directly trigger events, or to create a reply.
213 /** The single destination of the Request
217 /** Create a new Request
218 * This is for the 'old' way of casting whatever the data is
219 * to char* and hoping you get the right thing at the other end.
220 * This is slowly being depreciated in favor of the 'new' way.
222 Request(char* anydata, Module* src, Module* dst);
223 /** Create a new Request
224 * This is for the 'new' way of defining a subclass
225 * of Request and defining it in a common header,
226 * passing an object of your Request subclass through
227 * as a Request* and using the ID string to determine
228 * what to cast it back to and the other end. This is
229 * much safer as there are no casts not confirmed by
230 * the ID string, and all casts are child->parent and
231 * can be checked at runtime with dynamic_cast<>()
233 Request(Module* src, Module* dst, const char* idstr);
234 /** Fetch the Request data
237 /** Fetch the ID string
240 /** Fetch the request source
243 /** Fetch the request destination (should be 'this' in the receiving module)
246 /** Send the Request.
247 * Upon returning the result will be arbitary data returned by the module you
248 * sent the request to. It is up to your module to know what this data is and
249 * how to deal with it.
255 /** The Event class is a unicast message directed at all modules.
256 * When the class is properly instantiated it may be sent to all modules
257 * using the Send() method, which will trigger the OnEvent method in
258 * all modules passing the object as its parameter.
260 class Event : public ModuleMessage
263 /** This member holds a pointer to arbitary data set by the emitter of the message
266 /** This is a pointer to the sender of the message, which can be used to
267 * directly trigger events, or to create a reply.
270 /** The event identifier.
271 * This is arbitary text which should be used to distinguish
272 * one type of event from another.
276 /** Create a new Event
278 Event(char* anydata, Module* src, const std::string &eventid);
279 /** Get the Event data
282 /** Get the event Source
285 /** Get the event ID.
286 * Use this to determine the event type for safe casting of the data
288 std::string GetEventID();
290 * The return result of an Event::Send() will always be NULL as
291 * no replies are expected.
293 char* Send(InspIRCd* ServerInstance);
296 /** This class can be used on its own to represent an exception, or derived to represent a module-specific exception.
297 * When a module whishes to abort, e.g. within a constructor, it should throw an exception using ModuleException or
298 * a class derived from ModuleException. If a module throws an exception during its constructor, the module will not
299 * be loaded. If this happens, the error message returned by ModuleException::GetReason will be displayed to the user
300 * attempting to load the module, or dumped to the console if the ircd is currently loading for the first time.
302 class ModuleException : public classbase
305 /** Holds the error message to be displayed
309 /** Default constructor, just uses the error mesage 'Module threw an exception'.
311 ModuleException() : err("Module threw an exception") {}
312 /** This constructor can be used to specify an error message before throwing.
314 ModuleException(std::string message) : err(message) {}
315 /** This destructor solves world hunger, cancels the world debt, and causes the world to end.
316 * Actually no, it does nothing. Never mind.
318 virtual ~ModuleException() {};
319 /** Returns the reason for the exception.
320 * The module should probably put something informative here as the user will see this upon failure.
322 virtual const char* GetReason()
328 /** Priority types which can be returned from Module::Prioritize()
330 enum Priority { PRIORITY_FIRST, PRIORITY_DONTCARE, PRIORITY_LAST, PRIORITY_BEFORE, PRIORITY_AFTER };
332 /** Implementation-specific flags which may be set in Module::Implements()
334 enum Implementation { I_OnUserConnect, I_OnUserQuit, I_OnUserDisconnect, I_OnUserJoin, I_OnUserPart, I_OnRehash, I_OnServerRaw,
335 I_OnUserPreJoin, I_OnUserPreKick, I_OnUserKick, I_OnOper, I_OnInfo, I_OnWhois, I_OnUserPreInvite,
336 I_OnUserInvite, I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserPreNick, I_OnUserMessage, I_OnUserNotice, I_OnMode,
337 I_OnGetServerDescription, I_OnSyncUser, I_OnSyncChannel, I_OnSyncChannelMetaData, I_OnSyncUserMetaData,
338 I_OnDecodeMetaData, I_ProtoSendMode, I_ProtoSendMetaData, I_OnWallops, I_OnChangeHost, I_OnChangeName, I_OnAddGLine,
339 I_OnAddZLine, I_OnAddQLine, I_OnAddKLine, I_OnAddELine, I_OnDelGLine, I_OnDelZLine, I_OnDelKLine, I_OnDelELine, I_OnDelQLine,
340 I_OnCleanup, I_OnUserPostNick, I_OnAccessCheck, I_On005Numeric, I_OnKill, I_OnRemoteKill, I_OnLoadModule, I_OnUnloadModule,
341 I_OnBackgroundTimer, I_OnPreCommand, I_OnCheckReady, I_OnUserRrgister, I_OnRawMode, I_OnCheckInvite,
342 I_OnCheckKey, I_OnCheckLimit, I_OnCheckBan, I_OnStats, I_OnChangeLocalUserHost, I_OnChangeLocalUserGecos, I_OnLocalTopicChange,
343 I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnOperCompre, I_OnGlobalOper, I_OnPostConnect, I_OnAddBan, I_OnDelBan,
344 I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketWrite, I_OnRawSocketRead, I_OnChangeLocalUserGECOS, I_OnUserRegister,
345 I_OnOperCompare, I_OnChannelDelete, I_OnPostOper, I_OnSyncOtherMetaData, I_OnSetAway, I_OnCancelAway, I_OnUserList, I_OnPostCommand };
347 /** Base class for all InspIRCd modules
348 * This class is the base class for InspIRCd modules. All modules must inherit from this class,
349 * its methods will be called when irc server events occur. class inherited from module must be
350 * instantiated by the ModuleFactory class (see relevent section) for the module to be initialised.
352 class Module : public Extensible
355 InspIRCd* ServerInstance;
358 /** Default constructor
359 * Creates a module class.
360 * @param Me An instance of the InspIRCd class which will be saved into ServerInstance for your use
361 * \exception ModuleException Throwing this class, or any class derived from ModuleException, causes loading of the module to abort.
363 Module(InspIRCd* Me);
365 /** Default destructor
366 * destroys a module class
370 /** Returns the version number of a Module.
371 * The method should return a Version object with its version information assigned via
374 virtual Version GetVersion();
376 /** The Implements function specifies which methods a module should receive events for.
377 * The char* parameter passed to this function contains a set of true or false values
378 * (1 or 0) which indicate wether each function is implemented. You must use the Iimplementation
379 * enum (documented elsewhere on this page) to mark functions as active. For example, to
380 * receive events for OnUserJoin():
382 * Implements[I_OnUserJoin] = 1;
384 * @param The implement list
386 virtual void Implements(char* Implements);
388 /** Used to set the 'priority' of a module (e.g. when it is called in relation to other modules.
389 * Some modules prefer to be called before other modules, due to their design. For example, a
390 * module which is expected to operate on complete information would expect to be placed last, so
391 * that any other modules which wish to adjust that information would execute before it, to be sure
392 * its information is correct. You can change your module's priority by returning one of:
394 * PRIORITY_FIRST - To place your module first in the list
396 * PRIORITY_LAST - To place your module last in the list
398 * PRIORITY_DONTCARE - To leave your module as it is (this is the default value, if you do not implement this function)
400 * The result of InspIRCd::PriorityBefore() - To move your module before another named module
402 * The result of InspIRCd::PriorityLast() - To move your module after another named module
404 * For a good working example of this method call, please see src/modules/m_spanningtree.cpp
405 * and src/modules/m_hostchange.so which make use of it. It is highly recommended that unless
406 * your module has a real need to reorder its priority, it should not implement this function,
407 * as many modules changing their priorities can make the system redundant.
409 virtual Priority Prioritize();
411 /** Called when a user connects.
412 * The details of the connecting user are available to you in the parameter userrec *user
413 * @param user The user who is connecting
415 virtual void OnUserConnect(userrec* user);
417 /** Called when a user quits.
418 * The details of the exiting user are available to you in the parameter userrec *user
419 * This event is only called when the user is fully registered when they quit. To catch
420 * raw disconnections, use the OnUserDisconnect method.
421 * @param user The user who is quitting
422 * @param message The user's quit message
424 virtual void OnUserQuit(userrec* user, const std::string &message);
426 /** Called whenever a user's socket is closed.
427 * The details of the exiting user are available to you in the parameter userrec *user
428 * This event is called for all users, registered or not, as a cleanup method for modules
429 * which might assign resources to user, such as dns lookups, objects and sockets.
430 * @param user The user who is disconnecting
432 virtual void OnUserDisconnect(userrec* user);
434 /** Called whenever a channel is deleted, either by QUIT, KICK or PART.
435 * @param chan The channel being deleted
437 virtual void OnChannelDelete(chanrec* chan);
439 /** Called when a user joins a channel.
440 * The details of the joining user are available to you in the parameter userrec *user,
441 * and the details of the channel they have joined is available in the variable chanrec *channel
442 * @param user The user who is joining
443 * @param channel The channel being joined
445 virtual void OnUserJoin(userrec* user, chanrec* channel);
447 /** Called when a user parts a channel.
448 * The details of the leaving user are available to you in the parameter userrec *user,
449 * and the details of the channel they have left is available in the variable chanrec *channel
450 * @param user The user who is parting
451 * @param channel The channel being parted
452 * @param partmessage The part message, or an empty string
454 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage);
456 /** Called on rehash.
457 * This method is called prior to a /REHASH or when a SIGHUP is received from the operating
458 * system. You should use it to reload any files so that your module keeps in step with the
459 * rest of the application. If a parameter is given, the core has done nothing. The module
460 * receiving the event can decide if this parameter has any relevence to it.
461 * @param parameter The (optional) parameter given to REHASH from the user.
463 virtual void OnRehash(const std::string ¶meter);
465 /** Called when a raw command is transmitted or received.
466 * This method is the lowest level of handler available to a module. It will be called with raw
467 * data which is passing through a connected socket. If you wish, you may munge this data by changing
468 * the string parameter "raw". If you do this, after your function exits it will immediately be
469 * cut down to 510 characters plus a carriage return and linefeed. For INBOUND messages only (where
470 * inbound is set to true) the value of user will be the userrec of the connection sending the
471 * data. This is not possible for outbound data because the data may be being routed to multiple targets.
472 * @param raw The raw string in RFC1459 format
473 * @param inbound A flag to indicate wether the data is coming into the daemon or going out to the user
474 * @param user The user record sending the text, when inbound == true.
476 virtual void OnServerRaw(std::string &raw, bool inbound, userrec* user);
478 /** Called whenever a user is about to join a channel, before any processing is done.
479 * Returning a value of 1 from this function stops the process immediately, causing no
480 * output to be sent to the user by the core. If you do this you must produce your own numerics,
481 * notices etc. This is useful for modules which may want to mimic +b, +k, +l etc. Returning -1 from
482 * this function forces the join to be allowed, bypassing restrictions such as banlists, invite, keys etc.
486 * If the user joins a NEW channel which does not exist yet, OnUserPreJoin will be called BEFORE the channel
487 * record is created. This will cause chanrec* chan to be NULL. There is very little you can do in form of
488 * processing on the actual channel record at this point, however the channel NAME will still be passed in
489 * char* cname, so that you could for example implement a channel blacklist or whitelist, etc.
490 * @param user The user joining the channel
491 * @param cname The channel name being joined
492 * @return 1 To prevent the join, 0 to allow it.
494 virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname);
496 /** Called whenever a user is about to be kicked.
497 * Returning a value of 1 from this function stops the process immediately, causing no
498 * output to be sent to the user by the core. If you do this you must produce your own numerics,
500 * @param source The user issuing the kick
501 * @param user The user being kicked
502 * @param chan The channel the user is being kicked from
503 * @param reason The kick reason
504 * @return 1 to prevent the kick, 0 to continue normally, -1 to explicitly allow the kick regardless of normal operation
506 virtual int OnUserPreKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason);
508 /** Called whenever a user is kicked.
509 * If this method is called, the kick is already underway and cannot be prevented, so
510 * to prevent a kick, please use Module::OnUserPreKick instead of this method.
511 * @param source The user issuing the kick
512 * @param user The user being kicked
513 * @param chan The channel the user is being kicked from
514 * @param reason The kick reason
516 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason);
518 /** Called whenever a user opers locally.
519 * The userrec will contain the oper mode 'o' as this function is called after any modifications
520 * are made to the user's structure by the core.
521 * @param user The user who is opering up
522 * @param opertype The opers type name
524 virtual void OnOper(userrec* user, const std::string &opertype);
526 /** Called after a user opers locally.
527 * This is identical to Module::OnOper(), except it is called after OnOper so that other modules
528 * can be gauranteed to already have processed the oper-up, for example m_spanningtree has sent
529 * out the OPERTYPE, etc.
530 * @param user The user who is opering up
531 * @param opertype The opers type name
533 virtual void OnPostOper(userrec* user, const std::string &opertype);
535 /** Called whenever a user types /INFO.
536 * The userrec will contain the information of the user who typed the command. Modules may use this
537 * method to output their own credits in /INFO (which is the ircd's version of an about box).
538 * It is purposefully not possible to modify any info that has already been output, or halt the list.
539 * You must write a 371 numeric to the user, containing your info in the following format:
541 * <nick> :information here
543 * @param user The user issuing /INFO
545 virtual void OnInfo(userrec* user);
547 /** Called whenever a /WHOIS is performed on a local user.
548 * The source parameter contains the details of the user who issued the WHOIS command, and
549 * the dest parameter contains the information of the user they are whoising.
550 * @param source The user issuing the WHOIS command
551 * @param dest The user who is being WHOISed
553 virtual void OnWhois(userrec* source, userrec* dest);
555 /** Called whenever a user is about to invite another user into a channel, before any processing is done.
556 * Returning 1 from this function stops the process immediately, causing no
557 * output to be sent to the user by the core. If you do this you must produce your own numerics,
558 * notices etc. This is useful for modules which may want to filter invites to channels.
559 * @param source The user who is issuing the INVITE
560 * @param dest The user being invited
561 * @param channel The channel the user is being invited to
562 * @return 1 to deny the invite, 0 to allow
564 virtual int OnUserPreInvite(userrec* source,userrec* dest,chanrec* channel);
566 /** Called after a user has been successfully invited to a channel.
567 * You cannot prevent the invite from occuring using this function, to do that,
568 * use OnUserPreInvite instead.
569 * @param source The user who is issuing the INVITE
570 * @param dest The user being invited
571 * @param channel The channel the user is being invited to
573 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel);
575 /** Called whenever a user is about to PRIVMSG A user or a channel, before any processing is done.
576 * Returning any nonzero value from this function stops the process immediately, causing no
577 * output to be sent to the user by the core. If you do this you must produce your own numerics,
578 * notices etc. This is useful for modules which may want to filter or redirect messages.
579 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
580 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
581 * of where the message is destined to be sent.
582 * @param user The user sending the message
583 * @param dest The target of the message (chanrec* or userrec*)
584 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
585 * @param text Changeable text being sent by the user
586 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
587 * @return 1 to deny the NOTICE, 0 to allow it
589 virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text,char status);
591 /** Called whenever a user is about to NOTICE A user or a channel, before any processing is done.
592 * Returning any nonzero value from this function stops the process immediately, causing no
593 * output to be sent to the user by the core. If you do this you must produce your own numerics,
594 * notices etc. This is useful for modules which may want to filter or redirect messages.
595 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
596 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
597 * of where the message is destined to be sent.
598 * You may alter the message text as you wish before relinquishing control to the next module
599 * in the chain, and if no other modules block the text this altered form of the text will be sent out
600 * to the user and possibly to other servers.
601 * @param user The user sending the message
602 * @param dest The target of the message (chanrec* or userrec*)
603 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
604 * @param text Changeable text being sent by the user
605 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
606 * @return 1 to deny the NOTICE, 0 to allow it
608 virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text,char status);
610 /** Called before any nickchange, local or remote. This can be used to implement Q-lines etc.
611 * Please note that although you can see remote nickchanges through this function, you should
612 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
613 * check user->server before taking any action (including returning nonzero from the method).
614 * If your method returns nonzero, the nickchange is silently forbidden, and it is down to your
615 * module to generate some meaninful output.
616 * @param user The username changing their nick
617 * @param newnick Their new nickname
618 * @return 1 to deny the change, 0 to allow
620 virtual int OnUserPreNick(userrec* user, const std::string &newnick);
622 /** Called after any PRIVMSG sent from a user.
623 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
624 * if target_type is TYPE_CHANNEL.
625 * @param user The user sending the message
626 * @param dest The target of the message
627 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
628 * @param text the text being sent by the user
629 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
631 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status);
633 /** Called after any NOTICE sent from a user.
634 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
635 * if target_type is TYPE_CHANNEL.
636 * @param user The user sending the message
637 * @param dest The target of the message
638 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
639 * @param text the text being sent by the user
640 * @param status The status being used, e.g. NOTICE @#chan has status== '@', 0 to send to everyone.
642 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status);
644 /** Called after every MODE command sent from a user
645 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
646 * if target_type is TYPE_CHANNEL. The text variable contains the remainder of the
647 * mode string after the target, e.g. "+wsi" or "+ooo nick1 nick2 nick3".
648 * @param user The user sending the MODEs
649 * @param dest The target of the modes (userrec* or chanrec*)
650 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
651 * @param text The actual modes and their parameters if any
653 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text);
655 /** Allows modules to alter or create server descriptions
656 * Whenever a module requires a server description, for example for display in
657 * WHOIS, this function is called in all modules. You may change or define the
658 * description given in std::string &description. If you do, this description
659 * will be shown in the WHOIS fields.
660 * @param servername The servername being searched for
661 * @param description Alterable server description for this server
663 virtual void OnGetServerDescription(const std::string &servername,std::string &description);
665 /** Allows modules to synchronize data which relates to users during a netburst.
666 * When this function is called, it will be called from the module which implements
667 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
668 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
669 * (see below). This function will be called for every user visible on your side
670 * of the burst, allowing you to for example set modes, etc. Do not use this call to
671 * synchronize data which you have stored using class Extensible -- There is a specialist
672 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
673 * @param user The user being syncronized
674 * @param proto A pointer to the module handling network protocol
675 * @param opaque An opaque pointer set by the protocol module, should not be modified!
677 virtual void OnSyncUser(userrec* user, Module* proto, void* opaque);
679 /** Allows modules to synchronize data which relates to channels during a netburst.
680 * When this function is called, it will be called from the module which implements
681 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
682 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
683 * (see below). This function will be called for every user visible on your side
684 * of the burst, allowing you to for example set modes, etc. Do not use this call to
685 * synchronize data which you have stored using class Extensible -- There is a specialist
686 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
688 * For a good example of how to use this function, please see src/modules/m_chanprotect.cpp
690 * @param chan The channel being syncronized
691 * @param proto A pointer to the module handling network protocol
692 * @param opaque An opaque pointer set by the protocol module, should not be modified!
694 virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque);
696 /* Allows modules to syncronize metadata related to channels over the network during a netburst.
697 * Whenever the linking module wants to send out data, but doesnt know what the data
698 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
699 * this method is called.You should use the ProtoSendMetaData function after you've
700 * correctly decided how the data should be represented, to send the metadata on its way if it belongs
701 * to your module. For a good example of how to use this method, see src/modules/m_swhois.cpp.
702 * @param chan The channel whos metadata is being syncronized
703 * @param proto A pointer to the module handling network protocol
704 * @param opaque An opaque pointer set by the protocol module, should not be modified!
705 * @param extname The extensions name which is being searched for
707 virtual void OnSyncChannelMetaData(chanrec* chan, Module* proto,void* opaque, const std::string &extname);
709 /* Allows modules to syncronize metadata related to users over the network during a netburst.
710 * Whenever the linking module wants to send out data, but doesnt know what the data
711 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
712 * this method is called. You should use the ProtoSendMetaData function after you've
713 * correctly decided how the data should be represented, to send the metadata on its way if
714 * if it belongs to your module.
715 * @param user The user whos metadata is being syncronized
716 * @param proto A pointer to the module handling network protocol
717 * @param opaque An opaque pointer set by the protocol module, should not be modified!
718 * @param extname The extensions name which is being searched for
720 virtual void OnSyncUserMetaData(userrec* user, Module* proto,void* opaque, const std::string &extname);
722 /* Allows modules to syncronize metadata not related to users or channels, over the network during a netburst.
723 * Whenever the linking module wants to send out data, but doesnt know what the data
724 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
725 * this method is called. You should use the ProtoSendMetaData function after you've
726 * correctly decided how the data should be represented, to send the metadata on its way if
727 * if it belongs to your module.
728 * @param proto A pointer to the module handling network protocol
729 * @param opaque An opaque pointer set by the protocol module, should not be modified!
731 virtual void OnSyncOtherMetaData(Module* proto, void* opaque);
733 /** Allows module data, sent via ProtoSendMetaData, to be decoded again by a receiving module.
734 * Please see src/modules/m_swhois.cpp for a working example of how to use this method call.
735 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
736 * @param target The chanrec* or userrec* that data should be added to
737 * @param extname The extension name which is being sent
738 * @param extdata The extension data, encoded at the other end by an identical module through OnSyncChannelMetaData or OnSyncUserMetaData
740 virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata);
742 /** Implemented by modules which provide the ability to link servers.
743 * These modules will implement this method, which allows transparent sending of servermodes
744 * down the network link as a broadcast, without a module calling it having to know the format
745 * of the MODE command before the actual mode string.
747 * More documentation to follow soon. Please see src/modules/m_chanprotect.cpp for examples
748 * of how to use this function.
750 * @param opaque An opaque pointer set by the protocol module, should not be modified!
751 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
752 * @param target The chanrec* or userrec* that modes should be sent for
753 * @param modeline The modes and parameters to be sent
755 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline);
757 /** Implemented by modules which provide the ability to link servers.
758 * These modules will implement this method, which allows metadata (extra data added to
759 * user and channel records using class Extensible, Extensible::Extend, etc) to be sent
760 * to other servers on a netburst and decoded at the other end by the same module on a
763 * More documentation to follow soon. Please see src/modules/m_swhois.cpp for example of
764 * how to use this function.
765 * @param opaque An opaque pointer set by the protocol module, should not be modified!
766 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
767 * @param target The chanrec* or userrec* that metadata should be sent for
768 * @param extname The extension name to send metadata for
769 * @param extdata Encoded data for this extension name, which will be encoded at the oppsite end by an identical module using OnDecodeMetaData
771 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata);
773 /** Called after every WALLOPS command.
774 * @param user The user sending the WALLOPS
775 * @param text The content of the WALLOPS message
777 virtual void OnWallops(userrec* user, const std::string &text);
779 /** Called whenever a user's hostname is changed.
780 * This event triggers after the host has been set.
781 * @param user The user whos host is being changed
782 * @param newhost The new hostname being set
784 virtual void OnChangeHost(userrec* user, const std::string &newhost);
786 /** Called whenever a user's GECOS (realname) is changed.
787 * This event triggers after the name has been set.
788 * @param user The user who's GECOS is being changed
789 * @param gecos The new GECOS being set on the user
791 virtual void OnChangeName(userrec* user, const std::string &gecos);
793 /** Called whenever a gline is added by a local user.
794 * This method is triggered after the line is added.
795 * @param duration The duration of the line in seconds
796 * @param source The sender of the line
797 * @param reason The reason text to be displayed
798 * @param hostmask The hostmask to add
800 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
802 /** Called whenever a zline is added by a local user.
803 * This method is triggered after the line is added.
804 * @param duration The duration of the line in seconds
805 * @param source The sender of the line
806 * @param reason The reason text to be displayed
807 * @param ipmask The hostmask to add
809 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask);
811 /** Called whenever a kline is added by a local user.
812 * This method is triggered after the line is added.
813 * @param duration The duration of the line in seconds
814 * @param source The sender of the line
815 * @param reason The reason text to be displayed
816 * @param hostmask The hostmask to add
818 virtual void OnAddKLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
820 /** Called whenever a qline is added by a local user.
821 * This method is triggered after the line is added.
822 * @param duration The duration of the line in seconds
823 * @param source The sender of the line
824 * @param reason The reason text to be displayed
825 * @param nickmask The hostmask to add
827 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask);
829 /** Called whenever a eline is added by a local user.
830 * This method is triggered after the line is added.
831 * @param duration The duration of the line in seconds
832 * @param source The sender of the line
833 * @param reason The reason text to be displayed
834 * @param hostmask The hostmask to add
836 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
838 /** Called whenever a gline is deleted.
839 * This method is triggered after the line is deleted.
840 * @param source The user removing the line
841 * @param hostmask The hostmask to delete
843 virtual void OnDelGLine(userrec* source, const std::string &hostmask);
845 /** Called whenever a zline is deleted.
846 * This method is triggered after the line is deleted.
847 * @param source The user removing the line
848 * @param hostmask The hostmask to delete
850 virtual void OnDelZLine(userrec* source, const std::string &ipmask);
852 /** Called whenever a kline is deleted.
853 * This method is triggered after the line is deleted.
854 * @param source The user removing the line
855 * @param hostmask The hostmask to delete
857 virtual void OnDelKLine(userrec* source, const std::string &hostmask);
859 /** Called whenever a qline is deleted.
860 * This method is triggered after the line is deleted.
861 * @param source The user removing the line
862 * @param hostmask The hostmask to delete
864 virtual void OnDelQLine(userrec* source, const std::string &nickmask);
866 /** Called whenever a eline is deleted.
867 * This method is triggered after the line is deleted.
868 * @param source The user removing the line
869 * @param hostmask The hostmask to delete
871 virtual void OnDelELine(userrec* source, const std::string &hostmask);
873 /** Called before your module is unloaded to clean up Extensibles.
874 * This method is called once for every user and channel on the network,
875 * so that when your module unloads it may clear up any remaining data
876 * in the form of Extensibles added using Extensible::Extend().
877 * If the target_type variable is TYPE_USER, then void* item refers to
878 * a userrec*, otherwise it refers to a chanrec*.
879 * @param target_type The type of item being cleaned
880 * @param item A pointer to the item's class
882 virtual void OnCleanup(int target_type, void* item);
884 /** Called after any nickchange, local or remote. This can be used to track users after nickchanges
885 * have been applied. Please note that although you can see remote nickchanges through this function, you should
886 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
887 * check user->server before taking any action (including returning nonzero from the method).
888 * Because this method is called after the nickchange is taken place, no return values are possible
889 * to indicate forbidding of the nick change. Use OnUserPreNick for this.
890 * @param user The user changing their nick
891 * @param oldnick The old nickname of the user before the nickchange
893 virtual void OnUserPostNick(userrec* user, const std::string &oldnick);
895 /** Called before an action which requires a channel privilage check.
896 * This function is called before many functions which check a users status on a channel, for example
897 * before opping a user, deopping a user, kicking a user, etc.
898 * There are several values for access_type which indicate for what reason access is being checked.
900 * AC_KICK (0) - A user is being kicked<br>
901 * AC_DEOP (1) - a user is being deopped<br>
902 * AC_OP (2) - a user is being opped<br>
903 * AC_VOICE (3) - a user is being voiced<br>
904 * AC_DEVOICE (4) - a user is being devoiced<br>
905 * AC_HALFOP (5) - a user is being halfopped<br>
906 * AC_DEHALFOP (6) - a user is being dehalfopped<br>
907 * AC_INVITE () - a user is being invited<br>
908 * AC_GENERAL_MODE (8) - a user channel mode is being changed<br><br>
909 * Upon returning from your function you must return either ACR_DEFAULT, to indicate the module wishes
910 * to do nothing, or ACR_DENY where approprate to deny the action, and ACR_ALLOW where appropriate to allow
911 * the action. Please note that in the case of some access checks (such as AC_GENERAL_MODE) access may be
912 * denied 'upstream' causing other checks such as AC_DEOP to not be reached. Be very careful with use of the
913 * AC_GENERAL_MODE type, as it may inadvertently override the behaviour of other modules. When the access_type
914 * is AC_GENERAL_MODE, the destination of the mode will be NULL (as it has not yet been determined).
915 * @param source The source of the access check
916 * @param dest The destination of the access check
917 * @param channel The channel which is being checked
918 * @param access_type See above
920 virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type);
922 /** Called when a 005 numeric is about to be output.
923 * The module should modify the 005 numeric if needed to indicate its features.
924 * @param output The 005 string to be modified if neccessary.
926 virtual void On005Numeric(std::string &output);
928 /** Called when a client is disconnected by KILL.
929 * If a client is killed by a server, e.g. a nickname collision or protocol error,
931 * Return 1 from this function to prevent the kill, and 0 from this function to allow
932 * it as normal. If you prevent the kill no output will be sent to the client, it is
933 * down to your module to generate this information.
934 * NOTE: It is NOT advisable to stop kills which originate from servers or remote users.
935 * If you do so youre risking race conditions, desyncs and worse!
936 * @param source The user sending the KILL
937 * @param dest The user being killed
938 * @param reason The kill reason
939 * @return 1 to prevent the kill, 0 to allow
941 virtual int OnKill(userrec* source, userrec* dest, const std::string &reason);
943 /** Called when an oper wants to disconnect a remote user via KILL
944 * @param source The user sending the KILL
945 * @param dest The user being killed
946 * @param reason The kill reason
948 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason);
950 /** Called whenever a module is loaded.
951 * mod will contain a pointer to the module, and string will contain its name,
952 * for example m_widgets.so. This function is primary for dependency checking,
953 * your module may decide to enable some extra features if it sees that you have
954 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
955 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
956 * but instead operate under reduced functionality, unless the dependency is
957 * absolutely neccessary (e.g. a module that extends the features of another
959 * @param mod A pointer to the new module
960 * @param name The new module's filename
962 virtual void OnLoadModule(Module* mod,const std::string &name);
964 /** Called whenever a module is unloaded.
965 * mod will contain a pointer to the module, and string will contain its name,
966 * for example m_widgets.so. This function is primary for dependency checking,
967 * your module may decide to enable some extra features if it sees that you have
968 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
969 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
970 * but instead operate under reduced functionality, unless the dependency is
971 * absolutely neccessary (e.g. a module that extends the features of another
973 * @param mod Pointer to the module being unloaded (still valid)
974 * @param name The filename of the module being unloaded
976 virtual void OnUnloadModule(Module* mod,const std::string &name);
978 /** Called once every five seconds for background processing.
979 * This timer can be used to control timed features. Its period is not accurate
980 * enough to be used as a clock, but it is gauranteed to be called at least once in
981 * any five second period, directly from the main loop of the server.
982 * @param curtime The current timer derived from time(2)
984 virtual void OnBackgroundTimer(time_t curtime);
986 /** Called whenever any command is about to be executed.
987 * This event occurs for all registered commands, wether they are registered in the core,
988 * or another module, and for invalid commands. Invalid commands may only be sent to this
989 * function when the value of validated is false. By returning 1 from this method you may prevent the
990 * command being executed. If you do this, no output is created by the core, and it is
991 * down to your module to produce any output neccessary.
992 * Note that unless you return 1, you should not destroy any structures (e.g. by using
993 * InspIRCd::QuitUser) otherwise when the command's handler function executes after your
994 * method returns, it will be passed an invalid pointer to the user object and crash!)
995 * @param command The command being executed
996 * @param parameters An array of array of characters containing the parameters for the command
997 * @param pcnt The nuimber of parameters passed to the command
998 * @param user the user issuing the command
999 * @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.
1000 * @return 1 to block the command, 0 to allow
1002 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated);
1004 /** Called after any command has been executed.
1005 * This event occurs for all registered commands, wether they are registered in the core,
1006 * or another module, but it will not occur for invalid commands (e.g. ones which do not
1007 * exist within the command table). The result code returned by the command handler is
1009 * @param command The command being executed
1010 * @param parameters An array of array of characters containing the parameters for the command
1011 * @param pcnt The nuimber of parameters passed to the command
1012 * @param user the user issuing the command
1013 * @param result The return code given by the command handler, one of CMD_SUCCESS or CMD_FAILURE
1015 virtual void OnPostCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, CmdResult result);
1017 /** Called to check if a user who is connecting can now be allowed to register
1018 * If any modules return false for this function, the user is held in the waiting
1019 * state until all modules return true. For example a module which implements ident
1020 * lookups will continue to return false for a user until their ident lookup is completed.
1021 * Note that the registration timeout for a user overrides these checks, if the registration
1022 * timeout is reached, the user is disconnected even if modules report that the user is
1023 * not ready to connect.
1024 * @param user The user to check
1025 * @return true to indicate readiness, false if otherwise
1027 virtual bool OnCheckReady(userrec* user);
1029 /** Called whenever a user is about to register their connection (e.g. before the user
1030 * is sent the MOTD etc). Modules can use this method if they are performing a function
1031 * which must be done before the actual connection is completed (e.g. ident lookups,
1032 * dnsbl lookups, etc).
1033 * Note that you should NOT delete the user record here by causing a disconnection!
1034 * Use OnUserConnect for that instead.
1035 * @param user The user registering
1037 virtual void OnUserRegister(userrec* user);
1039 /** Called whenever a mode character is processed.
1040 * Return 1 from this function to block the mode character from being processed entirely,
1041 * so that you may perform your own code instead. Note that this method allows you to override
1042 * modes defined by other modes, but this is NOT RECOMMENDED!
1043 * @param user The user who is sending the mode
1044 * @param chan The channel the mode is being sent to
1045 * @param mode The mode character being set
1046 * @param param The parameter for the mode or an empty string
1047 * @param adding true of the mode is being added, false if it is being removed
1048 * @param pcnt The parameter count for the mode (0 or 1)
1049 * @return 1 to deny the mode, 0 to allow
1051 virtual int OnRawMode(userrec* user, chanrec* chan, char mode, const std::string ¶m, bool adding, int pcnt);
1053 /** Called whenever a user joins a channel, to determine if invite checks should go ahead or not.
1054 * This method will always be called for each join, wether or not the channel is actually +i, and
1055 * determines the outcome of an if statement around the whole section of invite checking code.
1056 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1057 * @param user The user joining the channel
1058 * @param chan The channel being joined
1059 * @return 1 to explicitly allow the join, 0 to proceed as normal
1061 virtual int OnCheckInvite(userrec* user, chanrec* chan);
1063 /** Called whenever a user joins a channel, to determine if key checks should go ahead or not.
1064 * This method will always be called for each join, wether or not the channel is actually +k, and
1065 * determines the outcome of an if statement around the whole section of key checking code.
1066 * if the user specified no key, the keygiven string will be a valid but empty value.
1067 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1068 * @param user The user joining the channel
1069 * @param chan The channel being joined
1070 * @return 1 to explicitly allow the join, 0 to proceed as normal
1072 virtual int OnCheckKey(userrec* user, chanrec* chan, const std::string &keygiven);
1074 /** Called whenever a user joins a channel, to determine if channel limit checks should go ahead or not.
1075 * This method will always be called for each join, wether or not the channel is actually +l, and
1076 * determines the outcome of an if statement around the whole section of channel limit checking code.
1077 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1078 * @param user The user joining the channel
1079 * @param chan The channel being joined
1080 * @return 1 to explicitly allow the join, 0 to proceed as normal
1082 virtual int OnCheckLimit(userrec* user, chanrec* chan);
1084 /** Called whenever a user joins a channel, to determine if banlist checks should go ahead or not.
1085 * This method will always be called for each join, wether or not the user actually matches a channel ban, and
1086 * determines the outcome of an if statement around the whole section of ban checking code.
1087 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1088 * @param user The user joining the channel
1089 * @param chan The channel being joined
1090 * @return 1 to explicitly allow the join, 0 to proceed as normal
1092 virtual int OnCheckBan(userrec* user, chanrec* chan);
1094 /** Called on all /STATS commands
1095 * This method is triggered for all /STATS use, including stats symbols handled by the core.
1096 * @param symbol the symbol provided to /STATS
1097 * @param user the user issuing the /STATS command
1098 * @param results A string_list to append results into. You should put all your results
1099 * into this string_list, rather than displaying them directly, so that your handler will
1100 * work when remote STATS queries are received.
1101 * @return 1 to block the /STATS from being processed by the core, 0 to allow it
1103 virtual int OnStats(char symbol, userrec* user, string_list &results);
1105 /** Called whenever a change of a local users displayed host is attempted.
1106 * Return 1 to deny the host change, or 0 to allow it.
1107 * @param user The user whos host will be changed
1108 * @param newhost The new hostname
1109 * @return 1 to deny the host change, 0 to allow
1111 virtual int OnChangeLocalUserHost(userrec* user, const std::string &newhost);
1113 /** Called whenever a change of a local users GECOS (fullname field) is attempted.
1114 * return 1 to deny the name change, or 0 to allow it.
1115 * @param user The user whos GECOS will be changed
1116 * @param newhost The new GECOS
1117 * @return 1 to deny the GECOS change, 0 to allow
1119 virtual int OnChangeLocalUserGECOS(userrec* user, const std::string &newhost);
1121 /** Called whenever a topic is changed by a local user.
1122 * Return 1 to deny the topic change, or 0 to allow it.
1123 * @param user The user changing the topic
1124 * @param chan The channels who's topic is being changed
1125 * @param topic The actual topic text
1126 * @param 1 to block the topic change, 0 to allow
1128 virtual int OnLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic);
1130 /** Called whenever a local topic has been changed.
1131 * To block topic changes you must use OnLocalTopicChange instead.
1132 * @param user The user changing the topic
1133 * @param chan The channels who's topic is being changed
1134 * @param topic The actual topic text
1136 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic);
1138 /** Called whenever an Event class is sent to all module by another module.
1139 * Please see the documentation of Event::Send() for further information. The Event sent can
1140 * always be assumed to be non-NULL, you should *always* check the value of Event::GetEventID()
1141 * before doing anything to the event data, and you should *not* change the event data in any way!
1142 * @param event The Event class being received
1144 virtual void OnEvent(Event* event);
1146 /** Called whenever a Request class is sent to your module by another module.
1147 * Please see the documentation of Request::Send() for further information. The Request sent
1148 * can always be assumed to be non-NULL, you should not change the request object or its data.
1149 * Your method may return arbitary data in the char* result which the requesting module
1150 * may be able to use for pre-determined purposes (e.g. the results of an SQL query, etc).
1151 * @param request The Request class being received
1153 virtual char* OnRequest(Request* request);
1155 /** Called whenever an oper password is to be compared to what a user has input.
1156 * The password field (from the config file) is in 'password' and is to be compared against
1157 * 'input'. This method allows for encryption of oper passwords and much more besides.
1158 * You should return a nonzero value if you want to allow the comparison or zero if you wish
1160 * @param password The oper's password
1161 * @param input The password entered
1162 * @return 1 to match the passwords, 0 to do nothing
1164 virtual int OnOperCompare(const std::string &password, const std::string &input);
1166 /** Called whenever a user is given usermode +o, anywhere on the network.
1167 * You cannot override this and prevent it from happening as it is already happened and
1168 * such a task must be performed by another server. You can however bounce modes by sending
1169 * servermodes out to reverse mode changes.
1170 * @param user The user who is opering
1172 virtual void OnGlobalOper(userrec* user);
1174 /** Called after a user has fully connected and all modules have executed OnUserConnect
1175 * This event is informational only. You should not change any user information in this
1176 * event. To do so, use the OnUserConnect method to change the state of local users.
1177 * @param user The user who is connecting
1179 virtual void OnPostConnect(userrec* user);
1181 /** Called whenever a ban is added to a channel's list.
1182 * Return a non-zero value to 'eat' the mode change and prevent the ban from being added.
1183 * @param source The user adding the ban
1184 * @param channel The channel the ban is being added to
1185 * @param banmask The ban mask being added
1186 * @return 1 to block the ban, 0 to continue as normal
1188 virtual int OnAddBan(userrec* source, chanrec* channel,const std::string &banmask);
1190 /** Called whenever a ban is removed from a channel's list.
1191 * Return a non-zero value to 'eat' the mode change and prevent the ban from being removed.
1192 * @param source The user deleting the ban
1193 * @param channel The channel the ban is being deleted from
1194 * @param banmask The ban mask being deleted
1195 * @return 1 to block the unban, 0 to continue as normal
1197 virtual int OnDelBan(userrec* source, chanrec* channel,const std::string &banmask);
1199 /** Called immediately after any connection is accepted. This is intended for raw socket
1200 * processing (e.g. modules which wrap the tcp connection within another library) and provides
1201 * no information relating to a user record as the connection has not been assigned yet.
1202 * There are no return values from this call as all modules get an opportunity if required to
1203 * process the connection.
1204 * @param fd The file descriptor returned from accept()
1205 * @param ip The IP address of the connecting user
1206 * @param localport The local port number the user connected to
1208 virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport);
1210 /** Called immediately before any write() operation on a user's socket in the core. Because
1211 * this event is a low level event no user information is associated with it. It is intended
1212 * for use by modules which may wrap connections within another API such as SSL for example.
1213 * return a non-zero result if you have handled the write operation, in which case the core
1214 * will not call write().
1215 * @param fd The file descriptor of the socket
1216 * @param buffer A char* buffer being written
1217 * @param Number of characters to write
1218 * @return Number of characters actually written or 0 if you didn't handle the operation
1220 virtual int OnRawSocketWrite(int fd, const char* buffer, int count);
1222 /** Called immediately before any socket is closed. When this event is called, shutdown()
1223 * has not yet been called on the socket.
1224 * @param fd The file descriptor of the socket prior to close()
1226 virtual void OnRawSocketClose(int fd);
1228 /** Called immediately before any read() operation on a client socket in the core.
1229 * This occurs AFTER the select() or poll() so there is always data waiting to be read
1230 * when this event occurs.
1231 * Your event should return 1 if it has handled the reading itself, which prevents the core
1232 * just using read(). You should place any data read into buffer, up to but NOT GREATER THAN
1233 * the value of count. The value of readresult must be identical to an actual result that might
1234 * be returned from the read() system call, for example, number of bytes read upon success,
1235 * 0 upon EOF or closed socket, and -1 for error. If your function returns a nonzero value,
1236 * you MUST set readresult.
1237 * @param fd The file descriptor of the socket
1238 * @param buffer A char* buffer being read to
1239 * @param count The size of the buffer
1240 * @param readresult The amount of characters read, or 0
1241 * @return nonzero if the event was handled, in which case readresult must be valid on exit
1243 virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult);
1245 /** Called whenever a user sets away.
1246 * This method has no parameter for the away message, as it is available in the
1247 * user record as userrec::awaymsg.
1249 virtual void OnSetAway(userrec* user);
1251 /** Called when a user cancels their away state.
1253 virtual void OnCancelAway(userrec* user);
1255 /** Called whenever a NAMES list is requested.
1256 * You can produce the nameslist yourself, overriding the current list,
1257 * and if you do you must return 1. If you do not handle the names list,
1260 virtual int OnUserList(userrec* user, chanrec* Ptr);
1264 #define CONF_NOT_A_NUMBER 0x000010
1265 #define CONF_NOT_UNSIGNED 0x000080
1266 #define CONF_VALUE_NOT_FOUND 0x000100
1267 #define CONF_FILE_NOT_FOUND 0x000200
1270 /** Allows reading of values from configuration files
1271 * This class allows a module to read from either the main configuration file (inspircd.conf) or from
1272 * a module-specified configuration file. It may either be instantiated with one parameter or none.
1273 * Constructing the class using one parameter allows you to specify a path to your own configuration
1274 * file, otherwise, inspircd.conf is read.
1276 class ConfigReader : public classbase
1279 InspIRCd* ServerInstance;
1280 /** The contents of the configuration file
1281 * This protected member should never be accessed by a module (and cannot be accessed unless the
1282 * core is changed). It will contain a pointer to the configuration file data with unneeded data
1283 * (such as comments) stripped from it.
1285 ConfigDataHash* data;
1286 std::ostringstream* errorlog;;
1287 /** Used to store errors
1289 bool privatehash; // If we're using our own config data hash or not.
1294 /** Default constructor.
1295 * This constructor initialises the ConfigReader class to read the inspircd.conf file
1296 * as specified when running ./configure.
1298 ConfigReader(InspIRCd* Instance);
1299 /** Overloaded constructor.
1300 * This constructor initialises the ConfigReader class to read a user-specified config file
1302 ConfigReader(InspIRCd* Instance, const std::string &filename);
1303 /** Default destructor.
1304 * This method destroys the ConfigReader class.
1307 /** Retrieves a value from the config file.
1308 * This method retrieves a value from the config file. Where multiple copies of the tag
1309 * exist in the config file, index indicates which of the values to retrieve.
1311 std::string ReadValue(const std::string &tag, const std::string &name, int index);
1312 /** Retrieves a boolean value from the config file.
1313 * This method retrieves a boolean value from the config file. Where multiple copies of the tag
1314 * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes"
1315 * and "true" in the config file count as true to ReadFlag, and any other value counts as false.
1317 bool ReadFlag(const std::string &tag, const std::string &name, int index);
1318 /** Retrieves an integer value from the config file.
1319 * This method retrieves an integer value from the config file. Where multiple copies of the tag
1320 * exist in the config file, index indicates which of the values to retrieve. Any invalid integer
1321 * values in the tag will cause the objects error value to be set, and any call to GetError() will
1322 * return CONF_INVALID_NUMBER to be returned. needs_unsigned is set if the number must be unsigned.
1323 * If a signed number is placed into a tag which is specified unsigned, 0 will be returned and GetError()
1324 * will return CONF_NOT_UNSIGNED
1326 long ReadInteger(const std::string &tag, const std::string &name, int index, bool needs_unsigned);
1327 /** Returns the last error to occur.
1328 * Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition.
1329 * A call to GetError() resets the error flag back to 0.
1332 /** Counts the number of times a given tag appears in the config file.
1333 * This method counts the number of times a tag appears in a config file, for use where
1334 * there are several tags of the same kind, e.g. with opers and connect types. It can be
1335 * used with the index value of ConfigReader::ReadValue to loop through all copies of a
1336 * multiple instance tag.
1338 int Enumerate(const std::string &tag);
1339 /** Returns true if a config file is valid.
1340 * This method is partially implemented and will only return false if the config
1341 * file does not exist or could not be opened.
1344 /** Dumps the list of errors in a config file to an output location. If bail is true,
1345 * then the program will abort. If bail is false and user points to a valid user
1346 * record, the error report will be spooled to the given user by means of NOTICE.
1347 * if bool is false AND user is false, the error report will be spooled to all opers
1348 * by means of a NOTICE to all opers.
1350 void DumpErrors(bool bail,userrec* user);
1352 /** Returns the number of items within a tag.
1353 * For example if the tag was <test tag="blah" data="foo"> then this
1354 * function would return 2. Spaces and newlines both qualify as valid seperators
1357 int EnumerateValues(const std::string &tag, int index);
1362 /** Caches a text file into memory and can be used to retrieve lines from it.
1363 * This class contains methods for read-only manipulation of a text file in memory.
1364 * Either use the constructor type with one parameter to load a file into memory
1365 * at construction, or use the LoadFile method to load a file.
1367 class FileReader : public classbase
1369 InspIRCd* ServerInstance;
1370 /** The file contents
1374 unsigned long contentsize;
1379 /** Default constructor.
1380 * This method does not load any file into memory, you must use the LoadFile method
1381 * after constructing the class this way.
1383 FileReader(InspIRCd* Instance);
1385 /** Secondary constructor.
1386 * This method initialises the class with a file loaded into it ready for GetLine and
1387 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1390 FileReader(InspIRCd* Instance, const std::string &filename);
1392 /** Default destructor.
1393 * This deletes the memory allocated to the file.
1397 /** Used to load a file.
1398 * This method loads a file into the class ready for GetLine and
1399 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1402 void LoadFile(const std::string &filename);
1404 /** Returns the whole content of the file as std::string
1406 std::string Contents();
1408 /** Returns the entire size of the file as std::string
1410 unsigned long ContentSize();
1412 /** Returns true if the file exists
1413 * This function will return false if the file could not be opened.
1417 /** Retrieve one line from the file.
1418 * This method retrieves one line from the text file. If an empty non-NULL string is returned,
1419 * the index was out of bounds, or the line had no data on it.
1421 std::string GetLine(int x);
1423 /** Returns the size of the file in lines.
1424 * This method returns the number of lines in the read file. If it is 0, no lines have been
1425 * read into memory, either because the file is empty or it does not exist, or cannot be
1426 * opened due to permission problems.
1432 /** Instantiates classes inherited from Module.
1433 * This class creates a class inherited from type Module, using new. This is to allow for modules
1434 * to create many different variants of Module, dependent on architecture, configuration, etc.
1435 * In most cases, the simple class shown in the example module m_foobar.so will suffice for most
1438 class ModuleFactory : public classbase
1441 /** The default constructor does nothing.
1444 /** The default destructor does nothing
1446 virtual ~ModuleFactory() { }
1447 /** Creates a new module.
1448 * Your inherited class of ModuleFactory must return a pointer to your Module class
1449 * using this method.
1451 virtual Module * CreateModule(InspIRCd* Me) = 0;
1454 /** A DLLFactory (designed to load shared objects) containing a ModuleFactory.
1456 typedef DLLFactory<ModuleFactory> ircd_module;
1458 /** A list of loaded Modules
1460 typedef std::vector<Module*> ModuleList;
1462 /** A list of loaded ModuleFactories
1464 typedef std::vector<ircd_module*> FactoryList;