/* Modular support * * (C) 2003-2010 Anope Team * Contact us at team@anope.org * * Please read COPYING and README for furhter details. * * Based on the original code of Epona by Lara. * Based on the original code of Services by Andy Church. * * $Id$ */ #ifndef MODULES_H #define MODULES_H #include #include "services.h" #include #include "timers.h" #include "hashcomp.h" #include "version.h" /* Cross OS compatibility macros */ #ifdef _WIN32 typedef HMODULE ano_module_t; #define dlopen(file, unused) LoadLibrary(file) E const char *dlerror(); #define dlsym(file, symbol) (HMODULE)GetProcAddress(file, symbol) #define dlclose(file) FreeLibrary(file) ? 0 : 1 #define ano_modclearerr() SetLastError(0) #define MODULE_EXT ".so" #else typedef void * ano_module_t; /* We call dlerror() here because it clears the module error after being * called. This previously read 'errno = 0', but that didn't work on * all POSIX-compliant architectures. This way the error is guaranteed * to be cleared, POSIX-wise. -GD */ #define ano_modclearerr() dlerror() #define MODULE_EXT ".so" #endif /** Possible return types from events. */ enum EventReturn { EVENT_STOP, EVENT_CONTINUE, EVENT_ALLOW }; /** * This #define allows us to call a method in all * loaded modules in a readable simple way, e.g.: * 'FOREACH_MOD(I_OnConnect,OnConnect(user));' */ #define FOREACH_MOD(y,x) do { \ std::vector::iterator safei; \ for (std::vector::iterator _i = ModuleManager::EventHandlers[y].begin(); _i != ModuleManager::EventHandlers[y].end(); ) \ { \ safei = _i; \ ++safei; \ try \ { \ (*_i)->x ; \ } \ catch (CoreException& modexcept) \ { \ Alog() << "Exception caught: " << modexcept.GetReason(); \ } \ _i = safei; \ } \ } while (0); /** * This define is similar to the one above but returns a result in MOD_RESULT. * The first module to return a nonzero result is the value to be accepted, * and any modules after are ignored. */ #define FOREACH_RESULT(y,x) \ do { \ std::vector::iterator safei; \ MOD_RESULT = EVENT_CONTINUE; \ for (std::vector::iterator _i = ModuleManager::EventHandlers[y].begin(); _i != ModuleManager::EventHandlers[y].end(); ) \ { \ safei = _i; \ ++safei; \ try \ { \ EventReturn res = (*_i)->x ; \ if (res != EVENT_CONTINUE) { \ MOD_RESULT = res; \ break; \ } \ } \ catch (CoreException& modexcept) \ { \ Alog() << "Exception caught: " << modexcept.GetReason(); \ } \ _i = safei; \ } \ } while(0); /** Priority types which can be returned from Module::Prioritize() */ enum Priority { PRIORITY_FIRST, PRIORITY_DONTCARE, PRIORITY_LAST, PRIORITY_BEFORE, PRIORITY_AFTER }; /*************************************************************************/ #define CMD_HASH(x) (((x)[0]&31)<<5 | ((x)[1]&31)) /* Will gen a hash from a string :) */ #define MAX_CMD_HASH 1024 /** The return value from commands. */ enum CommandReturn { MOD_CONT, MOD_STOP }; #define HOSTSERV HS_cmdTable /* using HOSTSERV etc. looks nicer than HS_cmdTable for modules */ #define BOTSERV BS_cmdTable #define MEMOSERV MS_cmdTable #define NICKSERV NS_cmdTable #define CHANSERV CS_cmdTable #define OPERSERV OS_cmdTable #define IRCD IRCD_cmdTable #define MODULE_HASH Module_table #define EVENT EVENT_cmdTable #define EVENTHOOKS HOOK_cmdTable /********************************************************************** * Module Returns **********************************************************************/ #define MOD_ERR_OK 0 #define MOD_ERR_MEMORY 1 #define MOD_ERR_PARAMS 2 #define MOD_ERR_EXISTS 3 #define MOD_ERR_NOEXIST 4 #define MOD_ERR_NOUSER 5 #define MOD_ERR_NOLOAD 6 #define MOD_ERR_NOUNLOAD 7 #define MOD_ERR_SYNTAX 8 #define MOD_ERR_NODELETE 9 #define MOD_ERR_UNKNOWN 10 #define MOD_ERR_FILE_IO 11 #define MOD_ERR_NOSERVICE 12 #define MOD_ERR_NO_MOD_NAME 13 /*************************************************************************/ /* Macros to export the Module API functions/variables */ #ifndef _WIN32 #define MDE #else #ifndef MODULE_COMPILE #define MDE __declspec(dllexport) #else #define MDE __declspec(dllimport) #endif #endif /*************************************************************************/ #if !defined(_WIN32) #include /* Define these for systems without them */ #ifndef RTLD_NOW #define RTLD_NOW 0 #endif #ifndef RTLD_LAZY #define RTLD_LAZY RTLD_NOW #endif #ifndef RTLD_GLOBAL #define RTLD_GLOBAL 0 #endif #ifndef RTLD_LOCAL #define RTLD_LOCAL 0 #endif #else const char *ano_moderr(); #endif typedef enum { CORE,PROTOCOL,THIRD,SUPPORTED,QATESTED,ENCRYPTION,DATABASE } MODType; typedef enum { MOD_OP_LOAD, MOD_OP_UNLOAD } ModuleOperation; /*************************************************************************/ /* Structure for information about a *Serv command. */ struct CommandHash; typedef struct ModuleLang_ ModuleLang; typedef struct ModuleHash_ ModuleHash; typedef struct Message_ Message; typedef struct MessageHash_ MessageHash; /*************************************************************************/ extern MDE CommandHash *HOSTSERV[MAX_CMD_HASH]; extern MDE CommandHash *BOTSERV[MAX_CMD_HASH]; extern MDE CommandHash *MEMOSERV[MAX_CMD_HASH]; extern MDE CommandHash *NICKSERV[MAX_CMD_HASH]; extern MDE CommandHash *CHANSERV[MAX_CMD_HASH]; extern MDE CommandHash *OPERSERV[MAX_CMD_HASH]; extern MDE MessageHash *IRCD[MAX_CMD_HASH]; extern MDE ModuleHash *MODULE_HASH[MAX_CMD_HASH]; struct ModuleLang_ { int argc; char **argv; }; enum CommandFlag { CFLAG_ALLOW_UNREGISTERED, CFLAG_ALLOW_FORBIDDEN, CFLAG_ALLOW_SUSPENDED, CFLAG_ALLOW_UNREGISTEREDCHANNEL, CFLAG_STRIP_CHANNEL, CFLAG_DISABLE_FANTASY }; /** Every services command is a class, inheriting from Command. */ class CoreExport Command : public Flags { public: size_t MaxParams; size_t MinParams; std::string name; std::string permission; /** Create a new command. * @param min_params The minimum number of parameters the parser will require to execute this command * @param max_params The maximum number of parameters the parser will create, after max_params, all will be combined into the last argument. * NOTE: If max_params is not set (default), there is no limit to the max number of params. */ Command(const std::string &sname, size_t min_params, size_t max_params = 0, const std::string &spermission = ""); virtual ~Command(); /** Execute this command. * @param u The user executing the command. */ virtual CommandReturn Execute(User *u, const std::vector &); /** Requested when the user is requesting help on this command. Help on this command should be sent to the user. * @param u The user requesting help * @param subcommand The subcommand the user is requesting help on, or an empty string. (e.g. /ns help set foo bar lol gives a subcommand of "FOO BAR LOL") * @return true if help was provided to the user, false otherwise. */ virtual bool OnHelp(User *u, const ci::string &subcommand); /** Requested when the user provides bad syntax to this command (not enough params, etc). * @param u The user executing the command. * @param subcommand The subcommand the user tried to use */ virtual void OnSyntaxError(User *u, const ci::string &subcommand); /** Set which command permission (e.g. chanserv/forbid) is required for this command. * @param reststr The permission required to successfully execute this command */ void SetPermission(const std::string &reststr); /* Module related stuff */ int core; /* Can this command be deleted? */ char *mod_name; /* Name of the module who owns us, NULL for core's */ char *service; /* Service we provide this command for */ Command *next; }; class Version { private: unsigned Major; unsigned Minor; unsigned Build; public: /** Constructor * @param vMajor The major version numbber * @param vMinor The minor version numbber * @param vBuild The build version numbber */ Version(unsigned vMajor, unsigned vMinor, unsigned vBuild); /** Destructor */ virtual ~Version(); /** Get the major version of Anope this was built against * @return The major version */ const unsigned GetMajor(); /** Get the minor version of Anope this was built against * @return The minor version */ const unsigned GetMinor(); /** Get the build version this was built against * @return The build version */ const unsigned GetBuild(); }; /* Forward declaration of CallBack class for the Module class */ class CallBack; /** Every module in Anope is actually a class. */ class CoreExport Module { private: bool permanent; public: /** The module name (e.g. os_modload) */ std::string name; /** The temporary path/filename */ std::string filename; /** Callbacks used in this module */ std::list CallBacks; ano_module_t handle; time_t created; std::string version; std::string author; MODType type; MessageHash *msgList[MAX_CMD_HASH]; ModuleLang lang[NUM_LANGS]; /** Creates and initialises a new module. * @param loadernick The nickname of the user loading the module. */ Module(const std::string &modname, const std::string &loadernick); /** Destroys a module, freeing resources it has allocated. */ virtual ~Module(); /** Sets a given type (CORE,PROTOCOL,3RD etc) on a module. * @param type The type to set the module as. */ void SetType(MODType type); /** Toggles the permanent flag on a module. If a module is permanent, * then it may not be unloaded. * * Naturally, this setting should be used sparingly! * * @param state True if this module should be permanent, false else. */ void SetPermanent(bool state); /** Retrieves whether or not a given module is permanent. * @return true if the module is permanent, false else. */ bool GetPermanent(); /** Set the modules version info. * @param version the version of the module */ void SetVersion(const std::string &version); /** Set the modules author info * @param author the author of the module */ void SetAuthor(const std::string &author); /** Get the version of Anope this module was * compiled against * @return The version */ virtual Version GetVersion() { return Version(VERSION_MAJOR, VERSION_MINOR, VERSION_BUILD); } /** * Allow a module to add a set of language strings to anope * @param langNumber the language number for the strings * @param ac The language count for the strings * @param av The language sring list. **/ void InsertLanguage(int langNumber, int ac, const char **av); /** * Delete a language from a module * @param langNumber the language Number to delete **/ void DeleteLanguage(int langNumber); /** * Get the text of the given lanugage string in the corrent language, or * in english. * @param u The user to send the message to * @param number The message number **/ const char *GetLangString(User *u, int number); /** * Send a notice to the user in the correct language, or english. * @param source Who sends the notice * @param u The user to send the message to * @param number The message number * @param ... The argument list **/ void NoticeLang(const char *source, User * u, int number, ...); /** * Add a module provided command to the given service. * e.g. AddCommand(NICKSERV,c,MOD_HEAD); * @param cmdTable the services to add the command to * @param c the command to add * @return MOD_ERR_OK on successfully adding the command */ int AddCommand(CommandHash *cmdTable[], Command * c); /** * Delete a command from the service given. * @param cmdTable the cmdTable for the services to remove the command from * @param name the name of the command to delete from the service * @return returns MOD_ERR_OK on success */ int DelCommand(CommandHash * cmdTable[], const char *name); /** Called on NickServ HELP * @param u The user requesting help */ virtual void OnNickServHelp(User *u) { } /** Called on ChanServ HELP * @param u The user requesting help */ virtual void OnChanServHelp(User *u) { } /** Called on Botserv HELP * @param u The user requesting help */ virtual void OnBotServHelp(User *u) { } /** Called on HostServ HELP * @param u The user requesting help */ virtual void OnHostServHelp(User *u) { } /** Called on OperServ HELP * @param u The user requesting help */ virtual void OnOperServHelp(User *u) { } /** Called on MemoServ HELP * @param u The user requesting help */ virtual void OnMemoServHelp(User *u) { } /** Called when the ircd notifies that a user has been kicked from a channel. * @param c The channel the user has been kicked from. * @param target The user that has been kicked. * @param source The nick of the sender. * @param kickmsg The reason for the kick. */ virtual void OnUserKicked(Channel *c, User *target, const std::string &source, const std::string &kickmsg) { } /** Called when Services' configuration has been loaded. * @param startup True if Services is starting for the first time, false otherwise. */ virtual void OnReload(bool startup) {} /** Called before a bot is assigned to a channel. * @param sender The user assigning the bot * @param ci The channel the bot is to be assigned to. * @param bi The bot being assigned. * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to deny the assign. */ virtual EventReturn OnBotAssign(User *sender, ChannelInfo *ci, BotInfo *bi) { return EVENT_CONTINUE; } /** Called before a bot is unassigned from a channel. * @param sender The user unassigning the bot * @param ci The channel the bot is being removed from * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to deny the unassign. */ virtual EventReturn OnBotUnAssign(User *sender, ChannelInfo *ci) { return EVENT_CONTINUE; } /** Called after a user has been introduced, but before any type * of checking has been done (akills, defcon, s*lines, etc) * return EVENT_STOP here to allow the user to get by untouched, * or kill them then return EVENT_STOP to tell Anope the user no * longer exists * @param u The user * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnPreUserConnect(User *u) { return EVENT_CONTINUE; } /** Called when a new user connects to the network. * @param u The connecting user. */ virtual void OnUserConnect(User *u) { } /** Called when a new server connects to the network. * @param s The server that has connected to the network */ virtual void OnNewServer(Server *s) { } /** Called after a user changed the nick * @param u The user. * @param oldnick the old nick of the user */ virtual void OnUserNickChange(User *u, const char *oldnick) { } /** Called immediatly when a user tries to run a command * @param service The service * @param u The user * @param cmd The command * @param c The command class (if it exists) * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to halt the command and not process it */ virtual EventReturn OnPreCommandRun(const std::string &service, User *u, const char *cmd, Command *c) { return EVENT_CONTINUE; } /** Called before a command is due to be executed. * @param u The user executing the command * @param service The service the command is associated with * @param command The command the user is executing * @param params The parameters the user is sending * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to halt the command and not process it */ virtual EventReturn OnPreCommand(User *u, const std::string &service, const ci::string &command, const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called after a command has been executed. * @param u The user executing the command * @param service The service the command is associated with * @param command The command the user executed * @param params The parameters the user sent */ virtual void OnPostCommand(User *u, const std::string &service, const ci::string &command, const std::vector ¶ms) { } /** Called after the core has finished loading the databases, but before * we connect to the server */ virtual void OnPostLoadDatabases() { } /** Called when the databases are saved * @return EVENT_CONTINUE to let other modules continue saving, EVENT_STOP to stop */ virtual EventReturn OnSaveDatabase() { return EVENT_CONTINUE; } /** Called when the databases are loaded * @return EVENT_CONTINUE to let other modules continue saving, EVENT_STOP to stop */ virtual EventReturn OnLoadDatabase() { return EVENT_CONTINUE; } /** Called when anope backs up databases. * NOTE: This event is deprecated pending new database handling. */ virtual void OnBackupDatabase() MARK_DEPRECATED { } /** Called when anope needs to check passwords against encryption * see src/encrypt.c for detailed informations */ virtual EventReturn OnEncrypt(const std::string &src, std::string &dest) { return EVENT_CONTINUE; } virtual EventReturn OnEncryptInPlace(std::string &buf) { return EVENT_CONTINUE; } virtual EventReturn OnDecrypt(const std::string &hashm, const std::string &src, std::string &dest) { return EVENT_CONTINUE; } virtual EventReturn OnCheckPassword(const std::string &hashm, std::string &plaintext, std::string &password) { return EVENT_CONTINUE; } /** Called on fantasy command * @param command The command * @param u The user using the command * @param ci The channel it's being used in * @param params The params */ virtual void OnBotFantasy(char *command, User *u, ChannelInfo *ci, char *params) { } /** Called on fantasy command without access * @param command The command * @param u The user using the command * @param ci The channel it's being used in * @param params The params */ virtual void OnBotNoFantasyAccess(const char *command, User *u, ChannelInfo *ci, const char *params) { } /** Called after a bot joins a channel * @param ci The channael * @param bi The bot */ virtual void OnBotJoin(ChannelInfo *ci, BotInfo *bi) { } /** Called when a bot places a ban * @param u User being banned * @param ci Channel the ban is placed on * @param mask The mask being banned */ virtual void OnBotBan(User *u, ChannelInfo *ci, const char *mask) { } /** Called before a bot kicks a user * @param bi The bot sending the kick * @param c The channel the user is being kicked on * @param u The user being kicked * @param reason The reason * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to halt the command and not process it */ virtual EventReturn OnBotKick(BotInfo *bi, Channel *c, User *u, const std::string &reason) { return EVENT_CONTINUE; } /** Called before a user parts a channel * @param u The user * @param c The channel */ virtual void OnPrePartChannel(User *u, Channel *c) {} /** Called when a user parts a channel * @param u The user * @param c The channel, may be NULL if the channel no longer exists * @param channel The channel name * @param msg The part reason */ virtual void OnPartChannel(User *u, Channel *c, const std::string &channel, const std::string &msg) { } /** Called before a user joins a channel * @param u The user * @param c The channel * @return EVENT_STOP to allow the user to join the channel through restrictions, EVENT_CONTINUE to let other modules decide */ virtual EventReturn OnPreJoinChannel(User *u, Channel *c) { return EVENT_CONTINUE; } /** Called when a user joins a channel * @param u The user * @param channel The channel */ virtual void OnJoinChannel(User *u, Channel *c) { } /** Called when a new topic is set * @param c The channel * @param topic The new topic */ virtual void OnTopicUpdated(Channel *c, const char *topic) { } /** Called before a channel expires * @param ci The channel * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to halt the command and not process it */ virtual EventReturn OnPreChanExpire(ChannelInfo *ci) { return EVENT_CONTINUE; } /** Called when a channel expires * @param chname The channel name */ virtual void OnChanExpire(const char *chname) { } /** Called before anope connects to its uplink */ virtual void OnPreServerConnect() { } /** Called when anope connects to its uplink */ virtual void OnServerConnect() { } /** Called before the database expire routines are called * Note: Code that is in seperate expiry routines should just be done * when we save the DB, theres no need to have both */ virtual void OnPreDatabaseExpire() MARK_DEPRECATED { } /** Called when the database expire routines are called */ virtual void OnDatabaseExpire() MARK_DEPRECATED { } /** Called when the flatfile dbs are being written * @param Write A callback to the function used to insert a line into the database */ virtual void OnDatabaseWrite(void (*Write)(const std::string &)) { } /** Called when a line is read from the database * @param params The params from the database * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnDatabaseRead(const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called when nickcore metadata is read from the database * @param nc The nickcore * @param key The metadata key * @param params The params from the database * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnDatabaseReadMetadata(NickCore *nc, const std::string &key, const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called when nickcore metadata is read from the database * @param na The nickalias * @param key The metadata key * @param params The params from the database * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnDatabaseReadMetadata(NickAlias *na, const std::string &key, const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called when botinfo metadata is read from the database * @param bi The botinfo * @param key The metadata key * @param params The params from the database * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnDatabaseReadMetadata(BotInfo *bi, const std::string &key, const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called when chaninfo metadata is read from the database * @param ci The chaninfo * @param key The metadata key * @param params The params from the database * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to stop processing */ virtual EventReturn OnDatabaseReadMetadata(ChannelInfo *ci, const std::string &key, const std::vector ¶ms) { return EVENT_CONTINUE; } /** Called when we are writing metadata for a nickcore * @param WriteMetata A callback function used to insert the metadata * @param nc The nickcore */ virtual void OnDatabaseWriteMetadata(void (*WriteMetadata)(const std::string &, const std::string &), NickCore *nc) { } /** Called when we are wrting metadata for a nickalias * @param WriteMetata A callback function used to insert the metadata * @param na The nick alias */ virtual void OnDatabaseWriteMetadata(void (*WriteMetadata)(const std::string &, const std::string &), NickAlias *na) { } /** Called when we are writing metadata for a botinfo * @param WriteMetata A callback function used to insert the metadata * @param bi The botinfo */ virtual void OnDatabaseWriteMetadata(void (*WriteMetadata)(const std::string &, const std::string &), BotInfo *bi) { } /** Called when are are writing metadata for a channelinfo * @param WriteMetata A callback function used to insert the metadata * @param bi The channelinfo */ virtual void OnDatabaseWriteMetadata(void (*WriteMetadata)(const std::string &, const std::string &), ChannelInfo *ci) { } /** Called before services restart */ virtual void OnPreRestart() { } /** Called when services restart */ virtual void OnRestart() { } /** Called before services shutdown */ virtual void OnPreShutdown() { } /** Called when services shutdown */ virtual void OnShutdown() { } /** Called on signal * @param msg The quitmsg */ virtual void OnSignal(const char *msg) { } /** Called before a nick expires * @param na The nick * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to halt the command and not process it */ virtual EventReturn OnPreNickExpire(NickAlias *na) { return EVENT_CONTINUE; } /** Called when a nick drops * @param nick The nick */ virtual void OnNickExpire(const char *nick) { } /** Called when defcon level changes * @param level The level */ virtual void OnDefconLevel(int level) { } /** Called when a server quits * @param server The server */ virtual void OnServerQuit(Server *server) { } /** Called on a QUIT * @param u The user * @param msg The quit message */ virtual void OnUserQuit(User *u, const std::string &msg) { } /** Called when a user disconnects * @param u The user */ virtual void OnUserLogoff(User *u) { } /** Called when a new bot is made * @param bi The bot */ virtual void OnBotCreate(BotInfo *bi) { } /** Called when a bot is changed * @param bi The bot */ virtual void OnBotChange(BotInfo *bi) { } /** Called when a bot is deleted * @param bi The bot */ virtual void OnBotDelete(BotInfo *bi) { } /** Called when access is deleted from a channel * @param ci The channel * @param u The user who removed the access * @param nick The name of the user whos access was removed */ virtual void OnAccessDel(ChannelInfo *ci, User *u, const char *nick) { } /** Called when access is changed * @param ci The channel * @param u The user who changed the access * @param nick The nick whos access was changed * @param level The level of the new access */ virtual void OnAccessChange(ChannelInfo *ci, User *u, const char *nick, int level) { } /** Called when access is added * @param ci The channel * @param u The user who added the access * @param nick The nick who was added to access * @param level The level they were added at */ virtual void OnAccessAdd(ChannelInfo *ci, User *u, const char *nick, int level) { } /** Called when the access list is cleared * @param ci The channel * @param u The user who cleared the access */ virtual void OnAccessClear(ChannelInfo *ci, User *u) { } /** Called when a channel is dropped * @param chname The channel name */ virtual void OnChanDrop(const char *chname) { } /** Called when a channel is forbidden * @param ci The channel */ virtual void OnChanForbidden(ChannelInfo *ci) { } /** Called when a channel is registered * @param ci The channel */ virtual void OnChanRegistered(ChannelInfo *ci) { } /** Called when a channel is suspended * @param ci The channel */ virtual void OnChanSuspend(ChannelInfo *ci) { } /** Called when a channel is unsuspended * @param ci The channel */ virtual void OnChanUnsuspend(ChannelInfo *ci) { } /** Called when a channel is being deleted, for any reason * @param ci The channel */ virtual void OnDelChan(ChannelInfo *ci) { } /** Called when a new channel is created * @param c The channel */ virtual void OnChannelCreate(Channel *c) { } /** Called when a channel is deleted * @param c The channel */ virtual void OnChannelDelete(Channel *c) { } /** Called when a nick is dropped * @param nick The nick */ virtual void OnNickDrop(const char *nick) { } /** Called when a nick is forbidden * @param na The nick alias of the forbidden nick */ virtual void OnNickForbidden(NickAlias *na) { } /** Called when a user groups their nick * @param u The user grouping * @param target The target they're grouping to */ virtual void OnNickGroup(User *u, NickAlias *target) { } /** Called when a user identifies * @param u The user */ virtual void OnNickIdentify(User *u) { } /** Called when a nick logs out * @param u The nick */ virtual void OnNickLogout(User *u) { } /** Called when a nick is registered * @param The nick */ virtual void OnNickRegister(NickAlias *na) { } /** Called when a nick is suspended * @param na The nick alias */ virtual void OnNickSuspend(NickAlias *na) { } /** Called when a nick is unsuspneded * @param na The nick alias */ virtual void OnNickUnsuspended(NickAlias *na) { } /** Called on finduser() * @param u pointer to the user */ virtual void OnFindUser(User *u) { } /** Called on findnick() * @param nick nickname to be searched for */ virtual void OnFindNick(const std::string &nick) { } /** Called on delnick() * @ param na pointer to the nickalias */ virtual void OnDelNick(NickAlias *na) { } /** Called on findcore() * @param nick nickname to be searched for (nc->display) */ virtual void OnFindCore(const std::string &nick) { } /** Called on delcore() * @param nc pointer to the NickCore */ virtual void OnDelCore(NickCore *nc) { } /** Called on change_core_display() * @param nc pointer to the NickCore * @param newdisplay the new display */ virtual void OnChangeCoreDisplay(NickCore *nc, const std::string &newdisplay) { } /** Called on findrequestnick() * @param nick nicname to be searched for */ virtual void OnFindRequestNick(const std::string &nick) { } /** called from ns_register.c, after the NickRequest have been created * @param nr pointer to the NickRequest */ virtual void OnMakeNickRequest(NickRequest *nr) { } /** called on delnickrequest() * @param nr pointer to the NickRequest */ virtual void OnDelNickRequest(NickRequest *nr) { } /** called from NickCore::ClearAccess() * @param nc pointer to the NickCore */ virtual void OnNickClearAccess(NickCore *nc) { } /** called from NickCore::EraseAccess() * @param nc pointer to the NickCore * @param entry The access mask */ virtual void OnNickEraseAccess(NickCore *nc, const std::string &entry) { } /** called when a vhost is deleted * @param na The nickalias of the vhost */ virtual void OnDeleteVhost(NickAlias *na) { } /** Called when a vhost is set * @param na The nickalias of the vhost */ virtual void OnSetVhost(NickAlias *na) { } /** Called when a mode is set on a channel * @param c The channel * @param Name The mode name * @param param The mode param, if there is one * @return EVENT_STOP to make mlock/secureops etc checks not happen */ virtual EventReturn OnChannelModeSet(Channel *c, ChannelModeName Name, const std::string ¶m) { return EVENT_CONTINUE; } /** Called when a mode is unset on a channel * @param c The channel * @param Name The mode name * @param param The mode param, if there is one * @return EVENT_STOP to make mlock/secureops etc checks not happen */ virtual EventReturn OnChannelModeUnset(Channel *c, ChannelModeName Name, const std::string ¶m) { return EVENT_CONTINUE; } /** Called when a mode is set on a user * @param u The user * @param Name The mode name */ virtual void OnUserModeSet(User *u, UserModeName Name) { } /** Called when a mode is unset from a user * @param u The user * @param Name The mode name */ virtual void OnUserModeUnset(User *u, UserModeName Name) { } /** Called when a channel mode is introducted into Anope * @param cm The mode */ virtual void OnChannelModeAdd(ChannelMode *cm) { } /** Called when a user mode is introducted into Anope * @param um The mode */ virtual void OnUserModeAdd(UserMode *um) { } /** Called when a mode is about to be mlocked * @param Name The mode being mlocked * @param status true if its being mlocked +, false for - * @param param The param, if there is one and if status is true * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to deny the mlock. */ virtual EventReturn OnMLock(ChannelModeName Name, bool status, const std::string ¶m) { return EVENT_CONTINUE; } /** Called when a mode is about to be unlocked * @param Name The mode being mlocked * @return EVENT_CONTINUE to let other modules decide, EVENT_STOP to deny the mlock. */ virtual EventReturn OnUnMLock(ChannelModeName Name) { return EVENT_CONTINUE; } /** Called after a module is loaded * @param u The user loading the module, can be NULL * @param m The module */ virtual void OnModuleLoad(User *u, Module *m) { } /** Called before a module is unloaded * @param u The user, can be NULL * @param m The module */ virtual void OnModuleUnload(User *u, Module *m) { } }; /** Implementation-specific flags which may be set in ModuleManager::Attach() */ enum Implementation { I_BEGIN, /* NickServ */ I_OnNickServHelp, I_OnPreNickExpire, I_OnNickExpire, I_OnNickForbidden, I_OnNickGroup, I_OnNickLogout, I_OnNickIdentify, I_OnNickDrop, I_OnNickRegister, I_OnNickSuspended, I_OnNickUnsuspended, I_OnFindUser, I_OnFindNick, I_OnDelNick, I_OnFindCore, I_OnDelCore, I_OnChangeCoreDisplay, I_OnFindRequestNick, I_OnDelNickRequest, I_OnMakeNickRequest, I_OnNickClearAccess, I_OnNickEraseAccess, /* ChanServ */ I_OnChanServHelp, I_OnChanForbidden, I_OnChanSuspend, I_OnChanDrop, I_OnPreChanExpire, I_OnChanExpire, I_OnAccessAdd, I_OnAccessChange, I_OnAccessDel, I_OnAccessClear, I_OnChanRegistered, I_OnChanUnsuspend, I_OnDelChan, I_OnChannelCreate, I_OnChannelDelete, /* BotServ */ I_OnBotServHelp, I_OnBotJoin, I_OnBotKick, I_OnBotCreate, I_OnBotChange, I_OnBotDelete, I_OnBotAssign, I_OnBotUnAssign, I_OnUserKicked, I_OnBotFantasy, I_OnBotNoFantasyAccess, I_OnBotBan, I_OnBotPreLoad, /* HostServ */ I_OnHostServHelp, I_OnSetVhost, I_OnDeleteVhost, /* MemoServ */ I_OnMemoServHelp, /* Users */ I_OnPreUserConnect, I_OnUserConnect, I_OnUserNickChange, I_OnUserQuit, I_OnUserLogoff, I_OnPreJoinChannel, I_OnJoinChannel, I_OnPrePartChannel, I_OnPartChannel, /* OperServ */ I_OnOperServHelp, I_OnDefconLevel, /* Database */ I_OnPostLoadDatabases, I_OnSaveDatabase, I_OnLoadDatabase, I_OnBackupDatabase, I_OnDatabaseExpire, I_OnDatabaseWrite, I_OnDatabaseRead, I_OnDatabaseReadMetadata, I_OnDatabaseWriteMetadata, /* Modules */ I_OnModuleLoad, I_OnModuleUnload, /* Other */ I_OnReload, I_OnPreServerConnect, I_OnNewServer, I_OnServerConnect, I_OnPreCommandRun, I_OnPreCommand, I_OnPostCommand, I_OnPreDatabaseExpire, I_OnPreRestart, I_OnRestart, I_OnPreShutdown, I_OnShutdown, I_OnSignal, I_OnServerQuit, I_OnTopicUpdated, I_OnEncrypt, I_OnEncryptInPlace, I_OnEncryptCheckLen, I_OnDecrypt, I_OnCheckPassword, I_OnChannelModeSet, I_OnChannelModeUnset, I_OnUserModeSet, I_OnUserModeUnset, I_OnChannelModeAdd, I_OnUserModeAdd, I_OnMLock, I_OnUnMLock, I_END }; /** Used to manage modules. */ class CoreExport ModuleManager { public: /** Event handler hooks. * This needs to be public to be used by FOREACH_MOD and friends. */ static std::vector EventHandlers[I_END]; /** Load up a list of modules. * @param module_list The list of modules to load **/ static void LoadModuleList(std::list &ModList); /** Loads a given module. * @param m the module to load * @param u the user who loaded it, NULL for auto-load * @return MOD_ERR_OK on success, anything else on fail */ static int LoadModule(const std::string &modname, User * u); /** Unload the given module. * @param m the module to unload * @param u the user who unloaded it * @return MOD_ERR_OK on success, anything else on fail */ static int UnloadModule(Module *m, User * u); /** Change the priority of one event in a module. * Each module event has a list of modules which are attached to that event type. If you wish to be called before or after other specific modules, you may use this * method (usually within void Module::Prioritize()) to set your events priority. You may use this call in other methods too, however, this is not supported behaviour * for a module. * @param mod The module to change the priority of * @param i The event to change the priority of * @param s The state you wish to use for this event. Use one of * PRIO_FIRST to set the event to be first called, PRIO_LAST to set it to be the last called, or PRIO_BEFORE and PRIO_AFTER * to set it to be before or after one or more other modules. * @param modules If PRIO_BEFORE or PRIO_AFTER is set in parameter 's', then this contains a list of one or more modules your module must be * placed before or after. Your module will be placed before the highest priority module in this list for PRIO_BEFORE, or after the lowest * priority module in this list for PRIO_AFTER. * @param sz The number of modules being passed for PRIO_BEFORE and PRIO_AFTER. Defaults to 1, as most of the time you will only want to prioritize your module * to be before or after one other module. */ static bool SetPriority(Module* mod, Implementation i, Priority s, Module** modules = NULL, size_t sz = 1); /** Change the priority of all events in a module. * @param mod The module to set the priority of * @param s The priority of all events in the module. * Note that with this method, it is not possible to effectively use PRIO_BEFORE or PRIO_AFTER, you should use the more fine tuned * SetPriority method for this, where you may specify other modules to be prioritized against. */ static bool SetPriority(Module* mod, Priority s); /** Attach an event to a module. * You may later detatch the event with ModuleManager::Detach(). If your module is unloaded, all events are automatically detatched. * @param i Event type to attach * @param mod Module to attach event to * @return True if the event was attached */ static bool Attach(Implementation i, Module* mod); /** Detatch an event from a module. * This is not required when your module unloads, as the core will automatically detatch your module from all events it is attached to. * @param i Event type to detach * @param mod Module to detach event from * @param Detach true if the event was detached */ static bool Detach(Implementation i, Module* mod); /** Detach all events from a module (used on unload) * @param mod Module to detach from */ static void DetachAll(Module* mod); /** Attach an array of events to a module * @param i Event types (array) to attach * @param mod Module to attach events to */ static void Attach(Implementation* i, Module* mod, size_t sz); /** Delete all callbacks attached to a module * @param m The module */ static void ClearCallBacks(Module *m); private: /** Call the module_delete function to safely delete the module * @param m the module to delete */ static void DeleteModule(Module *m); }; /** Class used for callbacks within modules */ class CallBack : public Timer { private: Module *m; public: CallBack(Module *mod, long time_from_now, time_t now = time(NULL), bool repeating = false) : Timer(time_from_now, now, repeating), m(mod) { m->CallBacks.push_back(this); } virtual ~CallBack() { std::list::iterator it = std::find(m->CallBacks.begin(), m->CallBacks.end(), this); if (it != m->CallBacks.end()) { m->CallBacks.erase(it); } } }; struct ModuleHash_ { char *name; Module *m; ModuleHash *next; }; struct CommandHash { char *name; /* Name of the command */ Command *c; /* Actual command */ CommandHash *next; /* Next command */ }; struct Message_ { char *name; int (*func)(const char *source, int ac, const char **av); int core; Message *next; }; struct MessageHash_ { char *name; Message *m; MessageHash *next; }; /*************************************************************************/ /* Module Managment Functions */ MDE Module *findModule(const char *name); /* Find a module */ int protocol_module_init(); /* Load the IRCD Protocol Module up*/ /*************************************************************************/ /*************************************************************************/ /* Command Managment Functions */ MDE Command *findCommand(CommandHash *cmdTable[], const char *name); /* Find a command */ /*************************************************************************/ /* Message Managment Functions */ MDE Message *createMessage(const char *name,int (*func)(const char *source, int ac, const char **av)); Message *findMessage(MessageHash *msgTable[], const char *name); /* Find a Message */ MDE int addMessage(MessageHash *msgTable[], Message *m, int pos); /* Add a Message to a Message table */ MDE int addCoreMessage(MessageHash *msgTable[], Message *m); /* Add a Message to a Message table */ int delMessage(MessageHash *msgTable[], Message *m); /* Del a Message from a msg table */ int destroyMessage(Message *m); /* destroy a Message*/ /*************************************************************************/ MDE bool moduleMinVersion(int major,int minor,int patch,int build); /* Checks if the current version of anope is before or after a given verison */ /************************************************************************/ #endif /* EOF */