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"
74 // Forward-delacare module for ModuleMessage etc
77 /** Low level definition of a FileReader classes file cache area
79 typedef std::deque<std::string> file_cache;
80 typedef file_cache string_list;
82 /** Holds a list of 'published features' for modules.
84 typedef std::map<std::string,Module*> featurelist;
87 * This #define allows us to call a method in all
88 * loaded modules in a readable simple way, e.g.:
89 * 'FOREACH_MOD(I_OnXonnwxr,OnConnect(user));'
91 #define FOREACH_MOD(y,x) if (ServerInstance->Config->global_implementation[y] > 0) { \
92 for (int _i = 0; _i <= ServerInstance->GetModuleCount(); _i++) { \
93 if (ServerInstance->Config->implement_lists[_i][y]) \
96 ServerInstance->modules[_i]->x ; \
98 catch (ModuleException& modexcept) \
100 log(DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
105 #define FOREACH_MOD_I(z,y,x) if (z->Config->global_implementation[y] > 0) { \
106 for (int _i = 0; _i <= z->GetModuleCount(); _i++) { \
107 if (z->Config->implement_lists[_i][y]) \
110 z->modules[_i]->x ; \
112 catch (ModuleException& modexcept) \
114 log(DEBUG,"Module exception caught: %s",modexcept.GetReason()); \
119 * This define is similar to the one above but returns a result in MOD_RESULT.
120 * The first module to return a nonzero result is the value to be accepted,
121 * and any modules after are ignored.
123 #define FOREACH_RESULT(y,x) { if (ServerInstance->Config->global_implementation[y] > 0) { \
125 for (int _i = 0; _i <= ServerInstance->GetModuleCount(); _i++) { \
126 if (ServerInstance->Config->implement_lists[_i][y]) { \
129 int res = ServerInstance->modules[_i]->x ; \
135 catch (ModuleException& modexcept) \
137 log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
144 #define FOREACH_RESULT_I(z,y,x) { if (z->Config->global_implementation[y] > 0) { \
146 for (int _i = 0; _i <= z->GetModuleCount(); _i++) { \
147 if (z->Config->implement_lists[_i][y]) { \
150 int res = z->modules[_i]->x ; \
156 catch (ModuleException& modexcept) \
158 log(DEBUG,"Module exception cought: %s",modexcept.GetReason()); \
165 #define FD_MAGIC_NUMBER -42
169 #define IS_LOCAL(x) ((x->fd > -1) && (x->fd <= MAX_DESCRIPTORS))
170 #define IS_REMOTE(x) (x->fd < 0)
171 #define IS_MODULE_CREATED(x) (x->fd == FD_MAGIC_NUMBER)
173 /** Holds a module's Version information
174 * The four members (set by the constructor only) indicate details as to the version number
175 * of a module. A class of type Version is returned by the GetVersion method of the Module class.
177 class Version : public classbase
180 const int Major, Minor, Revision, Build, Flags;
181 Version(int major, int minor, int revision, int build, int flags);
184 /** The ModuleMessage class is the base class of Request and Event
185 * This class is used to represent a basic data structure which is passed
186 * between modules for safe inter-module communications.
188 class ModuleMessage : public classbase
191 /** This class is pure virtual and must be inherited.
193 virtual char* Send() = 0;
194 virtual ~ModuleMessage() {};
197 /** The Request class is a unicast message directed at a given module.
198 * When this class is properly instantiated it may be sent to a module
199 * using the Send() method, which will call the given module's OnRequest
200 * method with this class as its parameter.
202 class Request : public ModuleMessage
205 /** This member holds a pointer to arbitary data set by the emitter of the message
208 /** This should be a null-terminated string identifying the type of request,
209 * all modules should define this and use it to determine the nature of the
210 * request before they attempt to cast the Request in any way.
213 /** This is a pointer to the sender of the message, which can be used to
214 * directly trigger events, or to create a reply.
217 /** The single destination of the Request
221 /** Create a new Request
222 * This is for the 'old' way of casting whatever the data is
223 * to char* and hoping you get the right thing at the other end.
224 * This is slowly being depreciated in favor of the 'new' way.
226 Request(char* anydata, Module* src, Module* dst);
227 /** Create a new Request
228 * This is for the 'new' way of defining a subclass
229 * of Request and defining it in a common header,
230 * passing an object of your Request subclass through
231 * as a Request* and using the ID string to determine
232 * what to cast it back to and the other end. This is
233 * much safer as there are no casts not confirmed by
234 * the ID string, and all casts are child->parent and
235 * can be checked at runtime with dynamic_cast<>()
237 Request(Module* src, Module* dst, const char* idstr);
238 /** Fetch the Request data
241 /** Fetch the ID string
244 /** Fetch the request source
247 /** Fetch the request destination (should be 'this' in the receiving module)
250 /** Send the Request.
251 * Upon returning the result will be arbitary data returned by the module you
252 * sent the request to. It is up to your module to know what this data is and
253 * how to deal with it.
259 /** The Event class is a unicast message directed at all modules.
260 * When the class is properly instantiated it may be sent to all modules
261 * using the Send() method, which will trigger the OnEvent method in
262 * all modules passing the object as its parameter.
264 class Event : public ModuleMessage
267 /** This member holds a pointer to arbitary data set by the emitter of the message
270 /** This is a pointer to the sender of the message, which can be used to
271 * directly trigger events, or to create a reply.
274 /** The event identifier.
275 * This is arbitary text which should be used to distinguish
276 * one type of event from another.
280 /** Create a new Event
282 Event(char* anydata, Module* src, const std::string &eventid);
283 /** Get the Event data
286 /** Get the event Source
289 /** Get the event ID.
290 * Use this to determine the event type for safe casting of the data
292 std::string GetEventID();
294 * The return result of an Event::Send() will always be NULL as
295 * no replies are expected.
300 /** This class can be used on its own to represent an exception, or derived to represent a module-specific exception.
301 * When a module whishes to abort, e.g. within a constructor, it should throw an exception using ModuleException or
302 * a class derived from ModuleException. If a module throws an exception during its constructor, the module will not
303 * be loaded. If this happens, the error message returned by ModuleException::GetReason will be displayed to the user
304 * attempting to load the module, or dumped to the console if the ircd is currently loading for the first time.
306 class ModuleException : public classbase
309 /** Holds the error message to be displayed
313 /** Default constructor, just uses the error mesage 'Module threw an exception'.
315 ModuleException() : err("Module threw an exception") {}
316 /** This constructor can be used to specify an error message before throwing.
318 ModuleException(std::string message) : err(message) {}
319 /** This destructor solves world hunger, cancels the world debt, and causes the world to end.
320 * Actually no, it does nothing. Never mind.
322 virtual ~ModuleException() {};
323 /** Returns the reason for the exception.
324 * The module should probably put something informative here as the user will see this upon failure.
326 virtual const char* GetReason()
332 /** Priority types which can be returned from Module::Prioritize()
334 enum Priority { PRIORITY_FIRST, PRIORITY_DONTCARE, PRIORITY_LAST, PRIORITY_BEFORE, PRIORITY_AFTER };
336 /** Implementation-specific flags which may be set in Module::Implements()
338 enum Implementation { I_OnUserConnect, I_OnUserQuit, I_OnUserDisconnect, I_OnUserJoin, I_OnUserPart, I_OnRehash, I_OnServerRaw,
339 I_OnUserPreJoin, I_OnUserPreKick, I_OnUserKick, I_OnOper, I_OnInfo, I_OnWhois, I_OnUserPreInvite,
340 I_OnUserInvite, I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserPreNick, I_OnUserMessage, I_OnUserNotice, I_OnMode,
341 I_OnGetServerDescription, I_OnSyncUser, I_OnSyncChannel, I_OnSyncChannelMetaData, I_OnSyncUserMetaData,
342 I_OnDecodeMetaData, I_ProtoSendMode, I_ProtoSendMetaData, I_OnWallops, I_OnChangeHost, I_OnChangeName, I_OnAddGLine,
343 I_OnAddZLine, I_OnAddQLine, I_OnAddKLine, I_OnAddELine, I_OnDelGLine, I_OnDelZLine, I_OnDelKLine, I_OnDelELine, I_OnDelQLine,
344 I_OnCleanup, I_OnUserPostNick, I_OnAccessCheck, I_On005Numeric, I_OnKill, I_OnRemoteKill, I_OnLoadModule, I_OnUnloadModule,
345 I_OnBackgroundTimer, I_OnPreCommand, I_OnCheckReady, I_OnUserRrgister, I_OnRawMode, I_OnCheckInvite,
346 I_OnCheckKey, I_OnCheckLimit, I_OnCheckBan, I_OnStats, I_OnChangeLocalUserHost, I_OnChangeLocalUserGecos, I_OnLocalTopicChange,
347 I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnOperCompre, I_OnGlobalOper, I_OnGlobalConnect, I_OnAddBan, I_OnDelBan,
348 I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketWrite, I_OnRawSocketRead, I_OnChangeLocalUserGECOS, I_OnUserRegister,
349 I_OnOperCompare, I_OnChannelDelete, I_OnPostOper, I_OnSyncOtherMetaData, I_OnSetAway, I_OnCancelAway };
351 /** Base class for all InspIRCd modules
352 * This class is the base class for InspIRCd modules. All modules must inherit from this class,
353 * its methods will be called when irc server events occur. class inherited from module must be
354 * instantiated by the ModuleFactory class (see relevent section) for the module to be initialised.
356 class Module : public Extensible
359 InspIRCd* ServerInstance;
362 /** Default constructor
363 * Creates a module class.
364 * @param Me An instance of the InspIRCd class which will be saved into ServerInstance for your use
365 * \exception ModuleException Throwing this class, or any class derived from ModuleException, causes loading of the module to abort.
367 Module(InspIRCd* Me);
369 /** Default destructor
370 * destroys a module class
374 /** Returns the version number of a Module.
375 * The method should return a Version object with its version information assigned via
378 virtual Version GetVersion();
380 /** The Implements function specifies which methods a module should receive events for.
381 * The char* parameter passed to this function contains a set of true or false values
382 * (1 or 0) which indicate wether each function is implemented. You must use the Iimplementation
383 * enum (documented elsewhere on this page) to mark functions as active. For example, to
384 * receive events for OnUserJoin():
386 * Implements[I_OnUserJoin] = 1;
388 * @param The implement list
390 virtual void Implements(char* Implements);
392 /** Used to set the 'priority' of a module (e.g. when it is called in relation to other modules.
393 * Some modules prefer to be called before other modules, due to their design. For example, a
394 * module which is expected to operate on complete information would expect to be placed last, so
395 * that any other modules which wish to adjust that information would execute before it, to be sure
396 * its information is correct. You can change your module's priority by returning one of:
398 * PRIORITY_FIRST - To place your module first in the list
400 * PRIORITY_LAST - To place your module last in the list
402 * PRIORITY_DONTCARE - To leave your module as it is (this is the default value, if you do not implement this function)
404 * The result of InspIRCd::PriorityBefore() - To move your module before another named module
406 * The result of InspIRCd::PriorityLast() - To move your module after another named module
408 * For a good working example of this method call, please see src/modules/m_spanningtree.cpp
409 * and src/modules/m_hostchange.so which make use of it. It is highly recommended that unless
410 * your module has a real need to reorder its priority, it should not implement this function,
411 * as many modules changing their priorities can make the system redundant.
413 virtual Priority Prioritize();
415 /** Called when a user connects.
416 * The details of the connecting user are available to you in the parameter userrec *user
417 * @param user The user who is connecting
419 virtual void OnUserConnect(userrec* user);
421 /** Called when a user quits.
422 * The details of the exiting user are available to you in the parameter userrec *user
423 * This event is only called when the user is fully registered when they quit. To catch
424 * raw disconnections, use the OnUserDisconnect method.
425 * @param user The user who is quitting
426 * @param message The user's quit message
428 virtual void OnUserQuit(userrec* user, const std::string &message);
430 /** Called whenever a user's socket is closed.
431 * The details of the exiting user are available to you in the parameter userrec *user
432 * This event is called for all users, registered or not, as a cleanup method for modules
433 * which might assign resources to user, such as dns lookups, objects and sockets.
434 * @param user The user who is disconnecting
436 virtual void OnUserDisconnect(userrec* user);
438 /** Called whenever a channel is deleted, either by QUIT, KICK or PART.
439 * @param chan The channel being deleted
441 virtual void OnChannelDelete(chanrec* chan);
443 /** Called when a user joins a channel.
444 * The details of the joining user are available to you in the parameter userrec *user,
445 * and the details of the channel they have joined is available in the variable chanrec *channel
446 * @param user The user who is joining
447 * @param channel The channel being joined
449 virtual void OnUserJoin(userrec* user, chanrec* channel);
451 /** Called when a user parts a channel.
452 * The details of the leaving user are available to you in the parameter userrec *user,
453 * and the details of the channel they have left is available in the variable chanrec *channel
454 * @param user The user who is parting
455 * @param channel The channel being parted
456 * @param partmessage The part message, or an empty string
458 virtual void OnUserPart(userrec* user, chanrec* channel, const std::string &partmessage);
460 /** Called on rehash.
461 * This method is called prior to a /REHASH or when a SIGHUP is received from the operating
462 * system. You should use it to reload any files so that your module keeps in step with the
463 * rest of the application. If a parameter is given, the core has done nothing. The module
464 * receiving the event can decide if this parameter has any relevence to it.
465 * @param parameter The (optional) parameter given to REHASH from the user.
467 virtual void OnRehash(const std::string ¶meter);
469 /** Called when a raw command is transmitted or received.
470 * This method is the lowest level of handler available to a module. It will be called with raw
471 * data which is passing through a connected socket. If you wish, you may munge this data by changing
472 * the string parameter "raw". If you do this, after your function exits it will immediately be
473 * cut down to 510 characters plus a carriage return and linefeed. For INBOUND messages only (where
474 * inbound is set to true) the value of user will be the userrec of the connection sending the
475 * data. This is not possible for outbound data because the data may be being routed to multiple targets.
476 * @param raw The raw string in RFC1459 format
477 * @param inbound A flag to indicate wether the data is coming into the daemon or going out to the user
478 * @param user The user record sending the text, when inbound == true.
480 virtual void OnServerRaw(std::string &raw, bool inbound, userrec* user);
482 /** Called whenever a user is about to join a channel, before any processing is done.
483 * Returning a value of 1 from this function stops the process immediately, causing no
484 * output to be sent to the user by the core. If you do this you must produce your own numerics,
485 * notices etc. This is useful for modules which may want to mimic +b, +k, +l etc. Returning -1 from
486 * this function forces the join to be allowed, bypassing restrictions such as banlists, invite, keys etc.
490 * If the user joins a NEW channel which does not exist yet, OnUserPreJoin will be called BEFORE the channel
491 * record is created. This will cause chanrec* chan to be NULL. There is very little you can do in form of
492 * processing on the actual channel record at this point, however the channel NAME will still be passed in
493 * char* cname, so that you could for example implement a channel blacklist or whitelist, etc.
494 * @param user The user joining the channel
495 * @param cname The channel name being joined
496 * @return 1 To prevent the join, 0 to allow it.
498 virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname);
500 /** Called whenever a user is about to be kicked.
501 * Returning a value of 1 from this function stops the process immediately, causing no
502 * output to be sent to the user by the core. If you do this you must produce your own numerics,
504 * @param source The user issuing the kick
505 * @param user The user being kicked
506 * @param chan The channel the user is being kicked from
507 * @param reason The kick reason
508 * @return 1 to prevent the kick, 0 to continue normally, -1 to explicitly allow the kick regardless of normal operation
510 virtual int OnUserPreKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason);
512 /** Called whenever a user is kicked.
513 * If this method is called, the kick is already underway and cannot be prevented, so
514 * to prevent a kick, please use Module::OnUserPreKick instead of this method.
515 * @param source The user issuing the kick
516 * @param user The user being kicked
517 * @param chan The channel the user is being kicked from
518 * @param reason The kick reason
520 virtual void OnUserKick(userrec* source, userrec* user, chanrec* chan, const std::string &reason);
522 /** Called whenever a user opers locally.
523 * The userrec will contain the oper mode 'o' as this function is called after any modifications
524 * are made to the user's structure by the core.
525 * @param user The user who is opering up
526 * @param opertype The opers type name
528 virtual void OnOper(userrec* user, const std::string &opertype);
530 /** Called after a user opers locally.
531 * This is identical to Module::OnOper(), except it is called after OnOper so that other modules
532 * can be gauranteed to already have processed the oper-up, for example m_spanningtree has sent
533 * out the OPERTYPE, etc.
534 * @param user The user who is opering up
535 * @param opertype The opers type name
537 virtual void OnPostOper(userrec* user, const std::string &opertype);
539 /** Called whenever a user types /INFO.
540 * The userrec will contain the information of the user who typed the command. Modules may use this
541 * method to output their own credits in /INFO (which is the ircd's version of an about box).
542 * It is purposefully not possible to modify any info that has already been output, or halt the list.
543 * You must write a 371 numeric to the user, containing your info in the following format:
545 * <nick> :information here
547 * @param user The user issuing /INFO
549 virtual void OnInfo(userrec* user);
551 /** Called whenever a /WHOIS is performed on a local user.
552 * The source parameter contains the details of the user who issued the WHOIS command, and
553 * the dest parameter contains the information of the user they are whoising.
554 * @param source The user issuing the WHOIS command
555 * @param dest The user who is being WHOISed
557 virtual void OnWhois(userrec* source, userrec* dest);
559 /** Called whenever a user is about to invite another user into a channel, before any processing is done.
560 * Returning 1 from this function stops the process immediately, causing no
561 * output to be sent to the user by the core. If you do this you must produce your own numerics,
562 * notices etc. This is useful for modules which may want to filter invites to channels.
563 * @param source The user who is issuing the INVITE
564 * @param dest The user being invited
565 * @param channel The channel the user is being invited to
566 * @return 1 to deny the invite, 0 to allow
568 virtual int OnUserPreInvite(userrec* source,userrec* dest,chanrec* channel);
570 /** Called after a user has been successfully invited to a channel.
571 * You cannot prevent the invite from occuring using this function, to do that,
572 * use OnUserPreInvite instead.
573 * @param source The user who is issuing the INVITE
574 * @param dest The user being invited
575 * @param channel The channel the user is being invited to
577 virtual void OnUserInvite(userrec* source,userrec* dest,chanrec* channel);
579 /** Called whenever a user is about to PRIVMSG A user or a channel, before any processing is done.
580 * Returning any nonzero value from this function stops the process immediately, causing no
581 * output to be sent to the user by the core. If you do this you must produce your own numerics,
582 * notices etc. This is useful for modules which may want to filter or redirect messages.
583 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
584 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
585 * of where the message is destined to be sent.
586 * @param user The user sending the message
587 * @param dest The target of the message (chanrec* or userrec*)
588 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
589 * @param text Changeable text being sent by the user
590 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
591 * @return 1 to deny the NOTICE, 0 to allow it
593 virtual int OnUserPreMessage(userrec* user,void* dest,int target_type, std::string &text,char status);
595 /** Called whenever a user is about to NOTICE A user or a channel, before any processing is done.
596 * Returning any nonzero value from this function stops the process immediately, causing no
597 * output to be sent to the user by the core. If you do this you must produce your own numerics,
598 * notices etc. This is useful for modules which may want to filter or redirect messages.
599 * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user,
600 * you must cast dest to a userrec* otherwise you must cast it to a chanrec*, this is the details
601 * of where the message is destined to be sent.
602 * You may alter the message text as you wish before relinquishing control to the next module
603 * in the chain, and if no other modules block the text this altered form of the text will be sent out
604 * to the user and possibly to other servers.
605 * @param user The user sending the message
606 * @param dest The target of the message (chanrec* or userrec*)
607 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
608 * @param text Changeable text being sent by the user
609 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
610 * @return 1 to deny the NOTICE, 0 to allow it
612 virtual int OnUserPreNotice(userrec* user,void* dest,int target_type, std::string &text,char status);
614 /** Called before any nickchange, local or remote. This can be used to implement Q-lines etc.
615 * Please note that although you can see remote nickchanges through this function, you should
616 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
617 * check user->server before taking any action (including returning nonzero from the method).
618 * If your method returns nonzero, the nickchange is silently forbidden, and it is down to your
619 * module to generate some meaninful output.
620 * @param user The username changing their nick
621 * @param newnick Their new nickname
622 * @return 1 to deny the change, 0 to allow
624 virtual int OnUserPreNick(userrec* user, const std::string &newnick);
626 /** Called after any PRIVMSG sent from a user.
627 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
628 * if target_type is TYPE_CHANNEL.
629 * @param user The user sending the message
630 * @param dest The target of the message
631 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
632 * @param text the text being sent by the user
633 * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone.
635 virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status);
637 /** Called after any NOTICE sent from a user.
638 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
639 * if target_type is TYPE_CHANNEL.
640 * @param user The user sending the message
641 * @param dest The target of the message
642 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
643 * @param text the text being sent by the user
644 * @param status The status being used, e.g. NOTICE @#chan has status== '@', 0 to send to everyone.
646 virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status);
648 /** Called after every MODE command sent from a user
649 * The dest variable contains a userrec* if target_type is TYPE_USER and a chanrec*
650 * if target_type is TYPE_CHANNEL. The text variable contains the remainder of the
651 * mode string after the target, e.g. "+wsi" or "+ooo nick1 nick2 nick3".
652 * @param user The user sending the MODEs
653 * @param dest The target of the modes (userrec* or chanrec*)
654 * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL)
655 * @param text The actual modes and their parameters if any
657 virtual void OnMode(userrec* user, void* dest, int target_type, const std::string &text);
659 /** Allows modules to alter or create server descriptions
660 * Whenever a module requires a server description, for example for display in
661 * WHOIS, this function is called in all modules. You may change or define the
662 * description given in std::string &description. If you do, this description
663 * will be shown in the WHOIS fields.
664 * @param servername The servername being searched for
665 * @param description Alterable server description for this server
667 virtual void OnGetServerDescription(const std::string &servername,std::string &description);
669 /** Allows modules to synchronize data which relates to users during a netburst.
670 * When this function is called, it will be called from the module which implements
671 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
672 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
673 * (see below). This function will be called for every user visible on your side
674 * of the burst, allowing you to for example set modes, etc. Do not use this call to
675 * synchronize data which you have stored using class Extensible -- There is a specialist
676 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
677 * @param user The user being syncronized
678 * @param proto A pointer to the module handling network protocol
679 * @param opaque An opaque pointer set by the protocol module, should not be modified!
681 virtual void OnSyncUser(userrec* user, Module* proto, void* opaque);
683 /** Allows modules to synchronize data which relates to channels during a netburst.
684 * When this function is called, it will be called from the module which implements
685 * the linking protocol. This currently is m_spanningtree.so. A pointer to this module
686 * is given in Module* proto, so that you may call its methods such as ProtoSendMode
687 * (see below). This function will be called for every user visible on your side
688 * of the burst, allowing you to for example set modes, etc. Do not use this call to
689 * synchronize data which you have stored using class Extensible -- There is a specialist
690 * function OnSyncUserMetaData and OnSyncChannelMetaData for this!
692 * For a good example of how to use this function, please see src/modules/m_chanprotect.cpp
694 * @param chan The channel being syncronized
695 * @param proto A pointer to the module handling network protocol
696 * @param opaque An opaque pointer set by the protocol module, should not be modified!
698 virtual void OnSyncChannel(chanrec* chan, Module* proto, void* opaque);
700 /* Allows modules to syncronize metadata related to channels over the network during a netburst.
701 * Whenever the linking module wants to send out data, but doesnt know what the data
702 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
703 * this method is called.You should use the ProtoSendMetaData function after you've
704 * correctly decided how the data should be represented, to send the metadata on its way if it belongs
705 * to your module. For a good example of how to use this method, see src/modules/m_swhois.cpp.
706 * @param chan The channel whos metadata is being syncronized
707 * @param proto A pointer to the module handling network protocol
708 * @param opaque An opaque pointer set by the protocol module, should not be modified!
709 * @param extname The extensions name which is being searched for
711 virtual void OnSyncChannelMetaData(chanrec* chan, Module* proto,void* opaque, const std::string &extname);
713 /* Allows modules to syncronize metadata related to users over the network during a netburst.
714 * Whenever the linking module wants to send out data, but doesnt know what the data
715 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
716 * this method is called. You should use the ProtoSendMetaData function after you've
717 * correctly decided how the data should be represented, to send the metadata on its way if
718 * if it belongs to your module.
719 * @param user The user whos metadata is being syncronized
720 * @param proto A pointer to the module handling network protocol
721 * @param opaque An opaque pointer set by the protocol module, should not be modified!
722 * @param extname The extensions name which is being searched for
724 virtual void OnSyncUserMetaData(userrec* user, Module* proto,void* opaque, const std::string &extname);
726 /* Allows modules to syncronize metadata not related to users or channels, over the network during a netburst.
727 * Whenever the linking module wants to send out data, but doesnt know what the data
728 * represents (e.g. it is Extensible metadata, added to a userrec or chanrec by a module) then
729 * this method is called. You should use the ProtoSendMetaData function after you've
730 * correctly decided how the data should be represented, to send the metadata on its way if
731 * if it belongs to your module.
732 * @param proto A pointer to the module handling network protocol
733 * @param opaque An opaque pointer set by the protocol module, should not be modified!
735 virtual void OnSyncOtherMetaData(Module* proto, void* opaque);
737 /** Allows module data, sent via ProtoSendMetaData, to be decoded again by a receiving module.
738 * Please see src/modules/m_swhois.cpp for a working example of how to use this method call.
739 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
740 * @param target The chanrec* or userrec* that data should be added to
741 * @param extname The extension name which is being sent
742 * @param extdata The extension data, encoded at the other end by an identical module through OnSyncChannelMetaData or OnSyncUserMetaData
744 virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata);
746 /** Implemented by modules which provide the ability to link servers.
747 * These modules will implement this method, which allows transparent sending of servermodes
748 * down the network link as a broadcast, without a module calling it having to know the format
749 * of the MODE command before the actual mode string.
751 * More documentation to follow soon. Please see src/modules/m_chanprotect.cpp for examples
752 * of how to use this function.
754 * @param opaque An opaque pointer set by the protocol module, should not be modified!
755 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
756 * @param target The chanrec* or userrec* that modes should be sent for
757 * @param modeline The modes and parameters to be sent
759 virtual void ProtoSendMode(void* opaque, int target_type, void* target, const std::string &modeline);
761 /** Implemented by modules which provide the ability to link servers.
762 * These modules will implement this method, which allows metadata (extra data added to
763 * user and channel records using class Extensible, Extensible::Extend, etc) to be sent
764 * to other servers on a netburst and decoded at the other end by the same module on a
767 * More documentation to follow soon. Please see src/modules/m_swhois.cpp for example of
768 * how to use this function.
769 * @param opaque An opaque pointer set by the protocol module, should not be modified!
770 * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL
771 * @param target The chanrec* or userrec* that metadata should be sent for
772 * @param extname The extension name to send metadata for
773 * @param extdata Encoded data for this extension name, which will be encoded at the oppsite end by an identical module using OnDecodeMetaData
775 virtual void ProtoSendMetaData(void* opaque, int target_type, void* target, const std::string &extname, const std::string &extdata);
777 /** Called after every WALLOPS command.
778 * @param user The user sending the WALLOPS
779 * @param text The content of the WALLOPS message
781 virtual void OnWallops(userrec* user, const std::string &text);
783 /** Called whenever a user's hostname is changed.
784 * This event triggers after the host has been set.
785 * @param user The user whos host is being changed
786 * @param newhost The new hostname being set
788 virtual void OnChangeHost(userrec* user, const std::string &newhost);
790 /** Called whenever a user's GECOS (realname) is changed.
791 * This event triggers after the name has been set.
792 * @param user The user who's GECOS is being changed
793 * @param gecos The new GECOS being set on the user
795 virtual void OnChangeName(userrec* user, const std::string &gecos);
797 /** Called whenever a gline is added by a local user.
798 * This method is triggered after the line is added.
799 * @param duration The duration of the line in seconds
800 * @param source The sender of the line
801 * @param reason The reason text to be displayed
802 * @param hostmask The hostmask to add
804 virtual void OnAddGLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
806 /** Called whenever a zline is added by a local user.
807 * This method is triggered after the line is added.
808 * @param duration The duration of the line in seconds
809 * @param source The sender of the line
810 * @param reason The reason text to be displayed
811 * @param ipmask The hostmask to add
813 virtual void OnAddZLine(long duration, userrec* source, const std::string &reason, const std::string &ipmask);
815 /** Called whenever a kline is added by a local user.
816 * This method is triggered after the line is added.
817 * @param duration The duration of the line in seconds
818 * @param source The sender of the line
819 * @param reason The reason text to be displayed
820 * @param hostmask The hostmask to add
822 virtual void OnAddKLine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
824 /** Called whenever a qline is added by a local user.
825 * This method is triggered after the line is added.
826 * @param duration The duration of the line in seconds
827 * @param source The sender of the line
828 * @param reason The reason text to be displayed
829 * @param nickmask The hostmask to add
831 virtual void OnAddQLine(long duration, userrec* source, const std::string &reason, const std::string &nickmask);
833 /** Called whenever a eline is added by a local user.
834 * This method is triggered after the line is added.
835 * @param duration The duration of the line in seconds
836 * @param source The sender of the line
837 * @param reason The reason text to be displayed
838 * @param hostmask The hostmask to add
840 virtual void OnAddELine(long duration, userrec* source, const std::string &reason, const std::string &hostmask);
842 /** Called whenever a gline is deleted.
843 * This method is triggered after the line is deleted.
844 * @param source The user removing the line
845 * @param hostmask The hostmask to delete
847 virtual void OnDelGLine(userrec* source, const std::string &hostmask);
849 /** Called whenever a zline is deleted.
850 * This method is triggered after the line is deleted.
851 * @param source The user removing the line
852 * @param hostmask The hostmask to delete
854 virtual void OnDelZLine(userrec* source, const std::string &ipmask);
856 /** Called whenever a kline is deleted.
857 * This method is triggered after the line is deleted.
858 * @param source The user removing the line
859 * @param hostmask The hostmask to delete
861 virtual void OnDelKLine(userrec* source, const std::string &hostmask);
863 /** Called whenever a qline is deleted.
864 * This method is triggered after the line is deleted.
865 * @param source The user removing the line
866 * @param hostmask The hostmask to delete
868 virtual void OnDelQLine(userrec* source, const std::string &nickmask);
870 /** Called whenever a eline is deleted.
871 * This method is triggered after the line is deleted.
872 * @param source The user removing the line
873 * @param hostmask The hostmask to delete
875 virtual void OnDelELine(userrec* source, const std::string &hostmask);
877 /** Called before your module is unloaded to clean up Extensibles.
878 * This method is called once for every user and channel on the network,
879 * so that when your module unloads it may clear up any remaining data
880 * in the form of Extensibles added using Extensible::Extend().
881 * If the target_type variable is TYPE_USER, then void* item refers to
882 * a userrec*, otherwise it refers to a chanrec*.
883 * @param target_type The type of item being cleaned
884 * @param item A pointer to the item's class
886 virtual void OnCleanup(int target_type, void* item);
888 /** Called after any nickchange, local or remote. This can be used to track users after nickchanges
889 * have been applied. Please note that although you can see remote nickchanges through this function, you should
890 * NOT make any changes to the userrec if the user is a remote user as this may cause a desnyc.
891 * check user->server before taking any action (including returning nonzero from the method).
892 * Because this method is called after the nickchange is taken place, no return values are possible
893 * to indicate forbidding of the nick change. Use OnUserPreNick for this.
894 * @param user The user changing their nick
895 * @param oldnick The old nickname of the user before the nickchange
897 virtual void OnUserPostNick(userrec* user, const std::string &oldnick);
899 /** Called before an action which requires a channel privilage check.
900 * This function is called before many functions which check a users status on a channel, for example
901 * before opping a user, deopping a user, kicking a user, etc.
902 * There are several values for access_type which indicate for what reason access is being checked.
904 * AC_KICK (0) - A user is being kicked<br>
905 * AC_DEOP (1) - a user is being deopped<br>
906 * AC_OP (2) - a user is being opped<br>
907 * AC_VOICE (3) - a user is being voiced<br>
908 * AC_DEVOICE (4) - a user is being devoiced<br>
909 * AC_HALFOP (5) - a user is being halfopped<br>
910 * AC_DEHALFOP (6) - a user is being dehalfopped<br>
911 * AC_INVITE () - a user is being invited<br>
912 * AC_GENERAL_MODE (8) - a user channel mode is being changed<br><br>
913 * Upon returning from your function you must return either ACR_DEFAULT, to indicate the module wishes
914 * to do nothing, or ACR_DENY where approprate to deny the action, and ACR_ALLOW where appropriate to allow
915 * the action. Please note that in the case of some access checks (such as AC_GENERAL_MODE) access may be
916 * denied 'upstream' causing other checks such as AC_DEOP to not be reached. Be very careful with use of the
917 * AC_GENERAL_MODE type, as it may inadvertently override the behaviour of other modules. When the access_type
918 * is AC_GENERAL_MODE, the destination of the mode will be NULL (as it has not yet been determined).
919 * @param source The source of the access check
920 * @param dest The destination of the access check
921 * @param channel The channel which is being checked
922 * @param access_type See above
924 virtual int OnAccessCheck(userrec* source,userrec* dest,chanrec* channel,int access_type);
926 /** Called when a 005 numeric is about to be output.
927 * The module should modify the 005 numeric if needed to indicate its features.
928 * @param output The 005 string to be modified if neccessary.
930 virtual void On005Numeric(std::string &output);
932 /** Called when a client is disconnected by KILL.
933 * If a client is killed by a server, e.g. a nickname collision or protocol error,
935 * Return 1 from this function to prevent the kill, and 0 from this function to allow
936 * it as normal. If you prevent the kill no output will be sent to the client, it is
937 * down to your module to generate this information.
938 * NOTE: It is NOT advisable to stop kills which originate from servers or remote users.
939 * If you do so youre risking race conditions, desyncs and worse!
940 * @param source The user sending the KILL
941 * @param dest The user being killed
942 * @param reason The kill reason
943 * @return 1 to prevent the kill, 0 to allow
945 virtual int OnKill(userrec* source, userrec* dest, const std::string &reason);
947 /** Called when an oper wants to disconnect a remote user via KILL
948 * @param source The user sending the KILL
949 * @param dest The user being killed
950 * @param reason The kill reason
952 virtual void OnRemoteKill(userrec* source, userrec* dest, const std::string &reason);
954 /** Called whenever a module is loaded.
955 * mod will contain a pointer to the module, and string will contain its name,
956 * for example m_widgets.so. This function is primary for dependency checking,
957 * your module may decide to enable some extra features if it sees that you have
958 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
959 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
960 * but instead operate under reduced functionality, unless the dependency is
961 * absolutely neccessary (e.g. a module that extends the features of another
963 * @param mod A pointer to the new module
964 * @param name The new module's filename
966 virtual void OnLoadModule(Module* mod,const std::string &name);
968 /** Called whenever a module is unloaded.
969 * mod will contain a pointer to the module, and string will contain its name,
970 * for example m_widgets.so. This function is primary for dependency checking,
971 * your module may decide to enable some extra features if it sees that you have
972 * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly
973 * recommended that modules do *NOT* bail if they cannot satisfy dependencies,
974 * but instead operate under reduced functionality, unless the dependency is
975 * absolutely neccessary (e.g. a module that extends the features of another
977 * @param mod Pointer to the module being unloaded (still valid)
978 * @param name The filename of the module being unloaded
980 virtual void OnUnloadModule(Module* mod,const std::string &name);
982 /** Called once every five seconds for background processing.
983 * This timer can be used to control timed features. Its period is not accurate
984 * enough to be used as a clock, but it is gauranteed to be called at least once in
985 * any five second period, directly from the main loop of the server.
986 * @param curtime The current timer derived from time(2)
988 virtual void OnBackgroundTimer(time_t curtime);
990 /** Called whenever any command is about to be executed.
991 * This event occurs for all registered commands, wether they are registered in the core,
992 * or another module, but it will not occur for invalid commands (e.g. ones which do not
993 * exist within the command table). By returning 1 from this method you may prevent the
994 * command being executed. If you do this, no output is created by the core, and it is
995 * down to your module to produce any output neccessary.
996 * Note that unless you return 1, you should not destroy any structures (e.g. by using
997 * InspIRCd::QuitUser) otherwise when the command's handler function executes after your
998 * method returns, it will be passed an invalid pointer to the user object and crash!)
999 * @param command The command being executed
1000 * @param parameters An array of array of characters containing the parameters for the command
1001 * @param pcnt The nuimber of parameters passed to the command
1002 * @param user the user issuing the command
1003 * @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.
1004 * @return 1 to block the command, 0 to allow
1006 virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated);
1008 /** Called to check if a user who is connecting can now be allowed to register
1009 * If any modules return false for this function, the user is held in the waiting
1010 * state until all modules return true. For example a module which implements ident
1011 * lookups will continue to return false for a user until their ident lookup is completed.
1012 * Note that the registration timeout for a user overrides these checks, if the registration
1013 * timeout is reached, the user is disconnected even if modules report that the user is
1014 * not ready to connect.
1015 * @param user The user to check
1016 * @return true to indicate readiness, false if otherwise
1018 virtual bool OnCheckReady(userrec* user);
1020 /** Called whenever a user is about to register their connection (e.g. before the user
1021 * is sent the MOTD etc). Modules can use this method if they are performing a function
1022 * which must be done before the actual connection is completed (e.g. ident lookups,
1023 * dnsbl lookups, etc).
1024 * Note that you should NOT delete the user record here by causing a disconnection!
1025 * Use OnUserConnect for that instead.
1026 * @param user The user registering
1028 virtual void OnUserRegister(userrec* user);
1030 /** Called whenever a mode character is processed.
1031 * Return 1 from this function to block the mode character from being processed entirely,
1032 * so that you may perform your own code instead. Note that this method allows you to override
1033 * modes defined by other modes, but this is NOT RECOMMENDED!
1034 * @param user The user who is sending the mode
1035 * @param chan The channel the mode is being sent to
1036 * @param mode The mode character being set
1037 * @param param The parameter for the mode or an empty string
1038 * @param adding true of the mode is being added, false if it is being removed
1039 * @param pcnt The parameter count for the mode (0 or 1)
1040 * @return 1 to deny the mode, 0 to allow
1042 virtual int OnRawMode(userrec* user, chanrec* chan, char mode, const std::string ¶m, bool adding, int pcnt);
1044 /** Called whenever a user joins a channel, to determine if invite checks should go ahead or not.
1045 * This method will always be called for each join, wether or not the channel is actually +i, and
1046 * determines the outcome of an if statement around the whole section of invite checking code.
1047 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1048 * @param user The user joining the channel
1049 * @param chan The channel being joined
1050 * @return 1 to explicitly allow the join, 0 to proceed as normal
1052 virtual int OnCheckInvite(userrec* user, chanrec* chan);
1054 /** Called whenever a user joins a channel, to determine if key checks should go ahead or not.
1055 * This method will always be called for each join, wether or not the channel is actually +k, and
1056 * determines the outcome of an if statement around the whole section of key checking code.
1057 * if the user specified no key, the keygiven string will be a valid but empty value.
1058 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1059 * @param user The user joining the channel
1060 * @param chan The channel being joined
1061 * @return 1 to explicitly allow the join, 0 to proceed as normal
1063 virtual int OnCheckKey(userrec* user, chanrec* chan, const std::string &keygiven);
1065 /** Called whenever a user joins a channel, to determine if channel limit checks should go ahead or not.
1066 * This method will always be called for each join, wether or not the channel is actually +l, and
1067 * determines the outcome of an if statement around the whole section of channel limit checking code.
1068 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1069 * @param user The user joining the channel
1070 * @param chan The channel being joined
1071 * @return 1 to explicitly allow the join, 0 to proceed as normal
1073 virtual int OnCheckLimit(userrec* user, chanrec* chan);
1075 /** Called whenever a user joins a channel, to determine if banlist checks should go ahead or not.
1076 * This method will always be called for each join, wether or not the user actually matches a channel ban, and
1077 * determines the outcome of an if statement around the whole section of ban checking code.
1078 * return 1 to explicitly allow the join to go ahead or 0 to ignore the event.
1079 * @param user The user joining the channel
1080 * @param chan The channel being joined
1081 * @return 1 to explicitly allow the join, 0 to proceed as normal
1083 virtual int OnCheckBan(userrec* user, chanrec* chan);
1085 /** Called on all /STATS commands
1086 * This method is triggered for all /STATS use, including stats symbols handled by the core.
1087 * @param symbol the symbol provided to /STATS
1088 * @param user the user issuing the /STATS command
1089 * @param results A string_list to append results into
1090 * @return 1 to block the /STATS from being processed by the core, 0 to allow it
1092 virtual int OnStats(char symbol, userrec* user, string_list &results);
1094 /** Called whenever a change of a local users displayed host is attempted.
1095 * Return 1 to deny the host change, or 0 to allow it.
1096 * @param user The user whos host will be changed
1097 * @param newhost The new hostname
1098 * @return 1 to deny the host change, 0 to allow
1100 virtual int OnChangeLocalUserHost(userrec* user, const std::string &newhost);
1102 /** Called whenever a change of a local users GECOS (fullname field) is attempted.
1103 * return 1 to deny the name change, or 0 to allow it.
1104 * @param user The user whos GECOS will be changed
1105 * @param newhost The new GECOS
1106 * @return 1 to deny the GECOS change, 0 to allow
1108 virtual int OnChangeLocalUserGECOS(userrec* user, const std::string &newhost);
1110 /** Called whenever a topic is changed by a local user.
1111 * Return 1 to deny the topic change, or 0 to allow it.
1112 * @param user The user changing the topic
1113 * @param chan The channels who's topic is being changed
1114 * @param topic The actual topic text
1115 * @param 1 to block the topic change, 0 to allow
1117 virtual int OnLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic);
1119 /** Called whenever a local topic has been changed.
1120 * To block topic changes you must use OnLocalTopicChange instead.
1121 * @param user The user changing the topic
1122 * @param chan The channels who's topic is being changed
1123 * @param topic The actual topic text
1125 virtual void OnPostLocalTopicChange(userrec* user, chanrec* chan, const std::string &topic);
1127 /** Called whenever an Event class is sent to all module by another module.
1128 * Please see the documentation of Event::Send() for further information. The Event sent can
1129 * always be assumed to be non-NULL, you should *always* check the value of Event::GetEventID()
1130 * before doing anything to the event data, and you should *not* change the event data in any way!
1131 * @param event The Event class being received
1133 virtual void OnEvent(Event* event);
1135 /** Called whenever a Request class is sent to your module by another module.
1136 * Please see the documentation of Request::Send() for further information. The Request sent
1137 * can always be assumed to be non-NULL, you should not change the request object or its data.
1138 * Your method may return arbitary data in the char* result which the requesting module
1139 * may be able to use for pre-determined purposes (e.g. the results of an SQL query, etc).
1140 * @param request The Request class being received
1142 virtual char* OnRequest(Request* request);
1144 /** Called whenever an oper password is to be compared to what a user has input.
1145 * The password field (from the config file) is in 'password' and is to be compared against
1146 * 'input'. This method allows for encryption of oper passwords and much more besides.
1147 * You should return a nonzero value if you want to allow the comparison or zero if you wish
1149 * @param password The oper's password
1150 * @param input The password entered
1151 * @return 1 to match the passwords, 0 to do nothing
1153 virtual int OnOperCompare(const std::string &password, const std::string &input);
1155 /** Called whenever a user is given usermode +o, anywhere on the network.
1156 * You cannot override this and prevent it from happening as it is already happened and
1157 * such a task must be performed by another server. You can however bounce modes by sending
1158 * servermodes out to reverse mode changes.
1159 * @param user The user who is opering
1161 virtual void OnGlobalOper(userrec* user);
1163 /** Called whenever a user connects, anywhere on the network.
1164 * This event is informational only. You should not change any user information in this
1165 * event. To do so, use the OnUserConnect method to change the state of local users.
1166 * @param user The user who is connecting
1168 virtual void OnGlobalConnect(userrec* user);
1170 /** Called whenever a ban is added to a channel's list.
1171 * Return a non-zero value to 'eat' the mode change and prevent the ban from being added.
1172 * @param source The user adding the ban
1173 * @param channel The channel the ban is being added to
1174 * @param banmask The ban mask being added
1175 * @return 1 to block the ban, 0 to continue as normal
1177 virtual int OnAddBan(userrec* source, chanrec* channel,const std::string &banmask);
1179 /** Called whenever a ban is removed from a channel's list.
1180 * Return a non-zero value to 'eat' the mode change and prevent the ban from being removed.
1181 * @param source The user deleting the ban
1182 * @param channel The channel the ban is being deleted from
1183 * @param banmask The ban mask being deleted
1184 * @return 1 to block the unban, 0 to continue as normal
1186 virtual int OnDelBan(userrec* source, chanrec* channel,const std::string &banmask);
1188 /** Called immediately after any connection is accepted. This is intended for raw socket
1189 * processing (e.g. modules which wrap the tcp connection within another library) and provides
1190 * no information relating to a user record as the connection has not been assigned yet.
1191 * There are no return values from this call as all modules get an opportunity if required to
1192 * process the connection.
1193 * @param fd The file descriptor returned from accept()
1194 * @param ip The IP address of the connecting user
1195 * @param localport The local port number the user connected to
1197 virtual void OnRawSocketAccept(int fd, const std::string &ip, int localport);
1199 /** Called immediately before any write() operation on a user's socket in the core. Because
1200 * this event is a low level event no user information is associated with it. It is intended
1201 * for use by modules which may wrap connections within another API such as SSL for example.
1202 * return a non-zero result if you have handled the write operation, in which case the core
1203 * will not call write().
1204 * @param fd The file descriptor of the socket
1205 * @param buffer A char* buffer being written
1206 * @param Number of characters to write
1207 * @return Number of characters actually written or 0 if you didn't handle the operation
1209 virtual int OnRawSocketWrite(int fd, const char* buffer, int count);
1211 /** Called immediately before any socket is closed. When this event is called, shutdown()
1212 * has not yet been called on the socket.
1213 * @param fd The file descriptor of the socket prior to close()
1215 virtual void OnRawSocketClose(int fd);
1217 /** Called immediately before any read() operation on a client socket in the core.
1218 * This occurs AFTER the select() or poll() so there is always data waiting to be read
1219 * when this event occurs.
1220 * Your event should return 1 if it has handled the reading itself, which prevents the core
1221 * just using read(). You should place any data read into buffer, up to but NOT GREATER THAN
1222 * the value of count. The value of readresult must be identical to an actual result that might
1223 * be returned from the read() system call, for example, number of bytes read upon success,
1224 * 0 upon EOF or closed socket, and -1 for error. If your function returns a nonzero value,
1225 * you MUST set readresult.
1226 * @param fd The file descriptor of the socket
1227 * @param buffer A char* buffer being read to
1228 * @param count The size of the buffer
1229 * @param readresult The amount of characters read, or 0
1230 * @return nonzero if the event was handled, in which case readresult must be valid on exit
1232 virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult);
1234 /** Called whenever a user sets away.
1235 * This method has no parameter for the away message, as it is available in the
1236 * user record as userrec::awaymsg.
1238 virtual void OnSetAway(userrec* user);
1240 /** Called when a user cancels their away state.
1242 virtual void OnCancelAway(userrec* user);
1246 #define CONF_NOT_A_NUMBER 0x000010
1247 #define CONF_NOT_UNSIGNED 0x000080
1248 #define CONF_VALUE_NOT_FOUND 0x000100
1249 #define CONF_FILE_NOT_FOUND 0x000200
1252 /** Allows reading of values from configuration files
1253 * This class allows a module to read from either the main configuration file (inspircd.conf) or from
1254 * a module-specified configuration file. It may either be instantiated with one parameter or none.
1255 * Constructing the class using one parameter allows you to specify a path to your own configuration
1256 * file, otherwise, inspircd.conf is read.
1258 class ConfigReader : public classbase
1261 /** The contents of the configuration file
1262 * This protected member should never be accessed by a module (and cannot be accessed unless the
1263 * core is changed). It will contain a pointer to the configuration file data with unneeded data
1264 * (such as comments) stripped from it.
1266 ConfigDataHash* data;
1267 std::ostringstream* errorlog;;
1268 /** Used to store errors
1270 bool privatehash; // If we're using our own config data hash or not.
1275 /** Default constructor.
1276 * This constructor initialises the ConfigReader class to read the inspircd.conf file
1277 * as specified when running ./configure.
1279 ConfigReader(); // default constructor reads ircd.conf
1280 /** Overloaded constructor.
1281 * This constructor initialises the ConfigReader class to read a user-specified config file
1283 ConfigReader(const std::string &filename); // read a module-specific config
1284 /** Default destructor.
1285 * This method destroys the ConfigReader class.
1288 /** Retrieves a value from the config file.
1289 * This method retrieves a value from the config file. Where multiple copies of the tag
1290 * exist in the config file, index indicates which of the values to retrieve.
1292 std::string ReadValue(const std::string &tag, const std::string &name, int index);
1293 /** Retrieves a boolean value from the config file.
1294 * This method retrieves a boolean value from the config file. Where multiple copies of the tag
1295 * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes"
1296 * and "true" in the config file count as true to ReadFlag, and any other value counts as false.
1298 bool ReadFlag(const std::string &tag, const std::string &name, int index);
1299 /** Retrieves an integer value from the config file.
1300 * This method retrieves an integer value from the config file. Where multiple copies of the tag
1301 * exist in the config file, index indicates which of the values to retrieve. Any invalid integer
1302 * values in the tag will cause the objects error value to be set, and any call to GetError() will
1303 * return CONF_INVALID_NUMBER to be returned. needs_unsigned is set if the number must be unsigned.
1304 * If a signed number is placed into a tag which is specified unsigned, 0 will be returned and GetError()
1305 * will return CONF_NOT_UNSIGNED
1307 long ReadInteger(const std::string &tag, const std::string &name, int index, bool needs_unsigned);
1308 /** Returns the last error to occur.
1309 * Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition.
1310 * A call to GetError() resets the error flag back to 0.
1313 /** Counts the number of times a given tag appears in the config file.
1314 * This method counts the number of times a tag appears in a config file, for use where
1315 * there are several tags of the same kind, e.g. with opers and connect types. It can be
1316 * used with the index value of ConfigReader::ReadValue to loop through all copies of a
1317 * multiple instance tag.
1319 int Enumerate(const std::string &tag);
1320 /** Returns true if a config file is valid.
1321 * This method is partially implemented and will only return false if the config
1322 * file does not exist or could not be opened.
1325 /** Dumps the list of errors in a config file to an output location. If bail is true,
1326 * then the program will abort. If bail is false and user points to a valid user
1327 * record, the error report will be spooled to the given user by means of NOTICE.
1328 * if bool is false AND user is false, the error report will be spooled to all opers
1329 * by means of a NOTICE to all opers.
1331 void DumpErrors(bool bail,userrec* user);
1333 /** Returns the number of items within a tag.
1334 * For example if the tag was <test tag="blah" data="foo"> then this
1335 * function would return 2. Spaces and newlines both qualify as valid seperators
1338 int EnumerateValues(const std::string &tag, int index);
1343 /** Caches a text file into memory and can be used to retrieve lines from it.
1344 * This class contains methods for read-only manipulation of a text file in memory.
1345 * Either use the constructor type with one parameter to load a file into memory
1346 * at construction, or use the LoadFile method to load a file.
1348 class FileReader : public classbase
1350 /** The file contents
1354 unsigned long contentsize;
1359 /** Default constructor.
1360 * This method does not load any file into memory, you must use the LoadFile method
1361 * after constructing the class this way.
1365 /** Secondary constructor.
1366 * This method initialises the class with a file loaded into it ready for GetLine and
1367 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1370 FileReader(const std::string &filename);
1372 /** Default destructor.
1373 * This deletes the memory allocated to the file.
1377 /** Used to load a file.
1378 * This method loads a file into the class ready for GetLine and
1379 * and other methods to be called. If the file could not be loaded, FileReader::FileSize
1382 void LoadFile(const std::string &filename);
1384 /** Returns the whole content of the file as std::string
1386 std::string Contents();
1388 /** Returns the entire size of the file as std::string
1390 unsigned long ContentSize();
1392 /** Returns true if the file exists
1393 * This function will return false if the file could not be opened.
1397 /** Retrieve one line from the file.
1398 * This method retrieves one line from the text file. If an empty non-NULL string is returned,
1399 * the index was out of bounds, or the line had no data on it.
1401 std::string GetLine(int x);
1403 /** Returns the size of the file in lines.
1404 * This method returns the number of lines in the read file. If it is 0, no lines have been
1405 * read into memory, either because the file is empty or it does not exist, or cannot be
1406 * opened due to permission problems.
1412 /** Instantiates classes inherited from Module
1413 * This class creates a class inherited from type Module, using new. This is to allow for modules
1414 * to create many different variants of Module, dependent on architecture, configuration, etc.
1415 * In most cases, the simple class shown in the example module m_foobar.so will suffice for most
1418 class ModuleFactory : public classbase
1422 virtual ~ModuleFactory() { }
1423 /** Creates a new module.
1424 * Your inherited class of ModuleFactory must return a pointer to your Module class
1425 * using this method.
1427 virtual Module * CreateModule(InspIRCd* Me) = 0;
1431 typedef DLLFactory<ModuleFactory> ircd_module;
1432 typedef std::vector<Module*> ModuleList;
1433 typedef std::vector<ircd_module*> FactoryList;