X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=include%2Fmodules.h;h=b36326b1b6b5b5874dfef96552852caa07cb9c49;hb=635cb9d65f6d7f6758ae8ed874da00c8d94b6e39;hp=4f21a6000d45b8549e6168a244ff28cc4015d419;hpb=a02ed18a1a1ae42fd81452b6ca5809fc3430a04c;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/include/modules.h b/include/modules.h index 4f21a6000..b36326b1b 100644 --- a/include/modules.h +++ b/include/modules.h @@ -1,215 +1,152 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2009 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2020 Matt Schatz + * Copyright (C) 2019 iwalkalone + * Copyright (C) 2013 Adam + * Copyright (C) 2012-2016, 2018 Attila Molnar + * Copyright (C) 2012-2013, 2017-2020 Sadie Powell + * Copyright (C) 2012 Robby + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2009 Uli Schlachter + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2007-2009 Robin Burchell + * Copyright (C) 2007 Oliver Lupton + * Copyright (C) 2006-2007 Dennis Friis + * Copyright (C) 2006 John Brooks + * Copyright (C) 2003-2008, 2010 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -#ifndef __MODULES_H -#define __MODULES_H +#pragma once + +#include "moduledefs.h" #include "dynamic.h" #include "base.h" #include "ctables.h" #include "inspsocket.h" -#include -#include -#include -#include "timer.h" #include "mode.h" -#include "dns.h" -class XLine; +/** Used to specify the behaviour of a module. */ +enum ModuleFlags +{ + /** The module has no special attributes. */ + VF_NONE = 0, -/** Used with OnAccessCheck() method of modules - */ -enum AccessControlType { - ACR_DEFAULT, // Do default action (act as if the module isnt even loaded) - ACR_DENY, // deny the action - ACR_ALLOW, // allow the action - AC_KICK, // a user is being kicked - AC_DEOP, // a user is being deopped - AC_OP, // a user is being opped - AC_VOICE, // a user is being voiced - AC_DEVOICE, // a user is being devoiced - AC_HALFOP, // a user is being halfopped - AC_DEHALFOP, // a user is being dehalfopped - AC_INVITE, // a user is being invited - AC_GENERAL_MODE // a channel mode is being changed -}; + /** The module is a coremod and can be assumed to be loaded on all servers. */ + VF_CORE = 1, -/** Used to define a set of behavior bits for a module - */ -enum ModuleFlags { - VF_STATIC = 1, // module is static, cannot be /unloadmodule'd - VF_VENDOR = 2, // module is a vendor module (came in the original tarball, not 3rd party) - VF_SERVICEPROVIDER = 4, // module provides a service to other modules (can be a dependency) - VF_COMMON = 8 // module needs to be common on all servers in a network to link -}; + /* The module is included with InspIRCd. */ + VF_VENDOR = 2, -/** Used with SendToMode() - */ -enum WriteModeFlags { - WM_AND = 1, - WM_OR = 2 -}; + /** The module MUST be loaded on all servers on a network to link. */ + VF_COMMON = 4, -/** Used to represent an event type, for user, channel or server - */ -enum TargetTypeFlags { - TYPE_USER = 1, - TYPE_CHANNEL, - TYPE_SERVER, - TYPE_OTHER + /** The module SHOULD be loaded on all servers on a network for consistency. */ + VF_OPTCOMMON = 8 }; -/** Used to represent wether a message was PRIVMSG or NOTICE - */ -enum MessageType { - MSG_PRIVMSG = 0, - MSG_NOTICE = 1 -}; +/** The event was explicitly allowed. */ +#define MOD_RES_ALLOW (ModResult(1)) -/** If you change the module API, change this value. */ -#define API_VERSION 13000 +/** The event was not explicitly allowed or denied. */ +#define MOD_RES_PASSTHRU (ModResult(0)) -class ServerConfig; +/** The event was explicitly denied. */ +#define MOD_RES_DENY (ModResult(-1)) -/* Forward-delacare module for ModuleMessage etc - */ -class Module; -class InspIRCd; +/** Represents the result of a module event. */ +class ModResult +{ + private: + /** The underlying result value. */ + char result; -/** Low level definition of a FileReader classes file cache area - - * a text file seperated into lines. - */ -typedef std::deque file_cache; + public: + /** Creates a new instance of the ModResult class which defaults to MOD_RES_PASSTHRU. */ + ModResult() + : result(0) + { + } -/** A set of strings. - */ -typedef file_cache string_list; + /** Creates a new instance of the ModResult class with the specified value. */ + explicit ModResult(char res) + : result(res) + { + } -/** Holds a list of 'published features' for modules. - */ -typedef std::map featurelist; + /** Determines whether this ModResult has.the same value as \p res */ + inline bool operator==(const ModResult& res) const + { + return result == res.result; + } -/** Holds a list of modules which implement an interface - */ -typedef std::deque modulelist; + /** Determines whether this ModResult has.a different value to \p res */ + inline bool operator!=(const ModResult& res) const + { + return result != res.result; + } -/** Holds a list of all modules which implement interfaces, by interface name - */ -typedef std::map > interfacelist; + /** Determines whether a non-MOD_RES_PASSTHRU result has been set. */ + inline bool operator!() const + { + return !result; + } -/** - * 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 { \ - EventHandlerIter safei; \ - for (EventHandlerIter _i = ServerInstance->Modules->EventHandlers[y].begin(); _i != ServerInstance->Modules->EventHandlers[y].end(); ) \ - { \ - safei = _i; \ - ++safei; \ - try \ - { \ - (*_i)->x ; \ - } \ - catch (CoreException& modexcept) \ - { \ - ServerInstance->Logs->Log("MODULE",DEFAULT,"Exception caught: %s",modexcept.GetReason()); \ - } \ - _i = safei; \ - } \ -} while (0); + /** Checks whether the result is an MOD_RES_ALLOW or MOD_RES_PASSTHRU when the default is to allow. */ + inline bool check(bool def) const + { + return (result == 1 || (result == 0 && def)); + } -/** - * This #define allows us to call a method in all - * loaded modules in a readable simple way and pass - * an instance pointer to the macro. e.g.: - * 'FOREACH_MOD_I(Instance, OnConnect, OnConnect(user));' - */ -#define FOREACH_MOD_I(z,y,x) do { \ - EventHandlerIter safei; \ - for (EventHandlerIter _i = z->Modules->EventHandlers[y].begin(); _i != z->Modules->EventHandlers[y].end(); ) \ - { \ - safei = _i; \ - ++safei; \ - try \ - { \ - (*_i)->x ; \ - } \ - catch (CoreException& modexcept) \ - { \ - z->Logs->Log("MODULE",DEFAULT,"Exception caught: %s",modexcept.GetReason()); \ - } \ - _i = safei; \ - } \ -} while (0); + /* Merges two results preferring MOD_RES_ALLOW to MOD_RES_DENY. */ + inline ModResult operator+(const ModResult& res) const + { + // If the results are identical or the other result is MOD_RES_PASSTHRU + // then return this result. + if (result == res.result || res.result == 0) + return *this; -/** - * 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 { \ - EventHandlerIter safei; \ - MOD_RESULT = 0; \ - for (EventHandlerIter _i = ServerInstance->Modules->EventHandlers[y].begin(); _i != ServerInstance->Modules->EventHandlers[y].end(); ) \ - { \ - safei = _i; \ - ++safei; \ - try \ - { \ - int res = (*_i)->x ; \ - if (res != 0) { \ - MOD_RESULT = res; \ - break; \ - } \ - } \ - catch (CoreException& modexcept) \ - { \ - ServerInstance->Logs->Log("MODULE",DEFAULT,"Exception caught: %s",modexcept.GetReason()); \ - } \ - _i = safei; \ - } \ -} while(0); + // If this result is MOD_RES_PASSTHRU then return the other result. + if (result == 0) + return res; + // Otherwise, they are different, and neither is MOD_RES_PASSTHRU. + return MOD_RES_ALLOW; + } +}; /** - * 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. + * This #define allows us to call a method in all + * loaded modules in a readable simple way, e.g.: + * 'FOREACH_MOD(OnConnect,(user));' */ -#define FOREACH_RESULT_I(z,y,x) \ -do { \ - EventHandlerIter safei; \ - MOD_RESULT = 0; \ - for (EventHandlerIter _i = z->Modules->EventHandlers[y].begin(); _i != z->Modules->EventHandlers[y].end(); ) \ +#define FOREACH_MOD(y,x) do { \ + const Module::List& _handlers = ServerInstance->Modules->EventHandlers[I_ ## y]; \ + for (Module::List::const_reverse_iterator _i = _handlers.rbegin(), _next; _i != _handlers.rend(); _i = _next) \ { \ - safei = _i; \ - ++safei; \ + _next = _i+1; \ try \ { \ - int res = (*_i)->x ; \ - if (res != 0) { \ - MOD_RESULT = res; \ - break; \ - } \ + if (!(*_i)->dying) \ + (*_i)->y x ; \ } \ catch (CoreException& modexcept) \ { \ - z->Logs->Log("MODULE",DEBUG,"Exception caught: %s",modexcept.GetReason()); \ + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Exception caught: " + modexcept.GetReason()); \ } \ - _i = safei; \ } \ } while (0); @@ -219,259 +156,239 @@ do { \ * * See src/channels.cpp for an example of use. */ -#define DO_EACH_HOOK(z,n,v,args) \ +#define DO_EACH_HOOK(n,v,args) \ do { \ - EventHandlerIter iter_ ## n = z->Modules->EventHandlers[I_ ## n].begin(); \ - while (iter_ ## n != z->Modules->EventHandlers[I_ ## n].end()) \ + const Module::List& _handlers = ServerInstance->Modules->EventHandlers[I_ ## n]; \ + for (Module::List::const_reverse_iterator _i = _handlers.rbegin(), _next; _i != _handlers.rend(); _i = _next) \ { \ - Module* mod_ ## n = *iter_ ## n; \ - iter_ ## n ++; \ + _next = _i+1; \ try \ { \ - v = (mod_ ## n)->n args; + if (!(*_i)->dying) \ + v = (*_i)->n args; -#define WHILE_EACH_HOOK(z,n) \ +#define WHILE_EACH_HOOK(n) \ } \ catch (CoreException& except_ ## n) \ { \ - z->Logs->Log("MODULE",DEFAULT,"Exception caught: %s", (except_ ## n).GetReason()); \ - (void) mod_ ## n; /* catch mismatched pairs */ \ + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Exception caught: " + (except_ ## n).GetReason()); \ } \ } \ } while(0) -/** Represents a non-local user. - * (in fact, any FD less than -1 does) - */ -#define FD_MAGIC_NUMBER -42 -/** Represents a fake user (i.e. a server) +/** + * Module result iterator + * Runs the given hook until some module returns a useful result. + * + * Example: ModResult result; + * FIRST_MOD_RESULT(OnUserPreNick, result, (user, newnick)) */ -#define FD_FAKEUSER_NUMBER -7 - -/* Useful macros */ - -/** Is a local user */ -#define IS_LOCAL(x) (x->GetFd() > -1) -/** Is a remote user */ -#define IS_REMOTE(x) (x->GetFd() < 0) -/** Is a fake user */ -#define IS_FAKE(x) (x->GetFd() == FD_FAKEUSER_NUMBER) -/** Is a module created user */ -#define IS_MODULE_CREATED(x) (x->GetFd() == FD_MAGIC_NUMBER) -/** Is an oper */ -#define IS_OPER(x) (!x->oper.empty()) -/** Is away */ -#define IS_AWAY(x) (!x->awaymsg.empty()) +#define FIRST_MOD_RESULT(n,v,args) do { \ + v = MOD_RES_PASSTHRU; \ + DO_EACH_HOOK(n,v,args) \ + { \ + if (v != MOD_RES_PASSTHRU) \ + break; \ + } \ + WHILE_EACH_HOOK(n); \ +} while (0) /** Holds a module's Version information. - * The four members (set by the constructor only) indicate details as to the version number - * of a module. A class of type Version is returned by the GetVersion method of the Module class. - * The flags and API values represent the module flags and API version of the module. - * The API version of a module must match the API version of the core exactly for the module to - * load successfully. + * The members (set by the constructor only) indicate details as to the version number + * of a module. A class of type Version is returned by the GetVersion method of the Module class. */ -class CoreExport Version : public classbase +class CoreExport Version { public: - /** Version information. + /** Module description */ - std::string version; + const std::string description; - /** Flags and API version + /** Flags */ - const int Flags, API; + const int Flags; - /** Initialize version class - */ - Version(const std::string &sversion, int flags, int api_ver); -}; + /** Server linking description string */ + const std::string link_data; -/** The ModuleMessage class is the base class of Request and Event - * This class is used to represent a basic data structure which is passed - * between modules for safe inter-module communications. - */ -class CoreExport ModuleMessage : public Extensible -{ - public: - /** Destructor - */ - virtual ~ModuleMessage() {}; -}; + /** Simple module version */ + Version(const std::string &desc, int flags = VF_NONE); -/** The Request class is a unicast message directed at a given module. - * When this class is properly instantiated it may be sent to a module - * using the Send() method, which will call the given module's OnRequest - * method with this class as its parameter. - */ -class CoreExport Request : public ModuleMessage -{ - protected: - /** This member holds a pointer to arbitary data set by the emitter of the message - */ - char* data; - /** This should be a null-terminated string identifying the type of request, - * all modules should define this and use it to determine the nature of the - * request before they attempt to cast the Request in any way. - */ - const char* id; - /** This is a pointer to the sender of the message, which can be used to - * directly trigger events, or to create a reply. - */ - Module* source; - /** The single destination of the Request - */ - Module* dest; - public: - /** Create a new Request - * This is for the 'old' way of casting whatever the data is - * to char* and hoping you get the right thing at the other end. - * This is slowly being depreciated in favor of the 'new' way. - */ - Request(char* anydata, Module* src, Module* dst); - /** Create a new Request - * This is for the 'new' way of defining a subclass - * of Request and defining it in a common header, - * passing an object of your Request subclass through - * as a Request* and using the ID string to determine - * what to cast it back to and the other end. This is - * much safer as there are no casts not confirmed by - * the ID string, and all casts are child->parent and - * can be checked at runtime with dynamic_cast<>() - */ - Request(Module* src, Module* dst, const char* idstr); - /** Fetch the Request data - */ - char* GetData(); - /** Fetch the ID string - */ - const char* GetId(); - /** Fetch the request source - */ - Module* GetSource(); - /** Fetch the request destination (should be 'this' in the receiving module) - */ - Module* GetDest(); - /** Send the Request. - * Upon returning the result will be arbitary data returned by the module you - * sent the request to. It is up to your module to know what this data is and - * how to deal with it. - */ - const char* Send(); + /** Complex version information, including linking compatibility data */ + Version(const std::string &desc, int flags, const std::string& linkdata); }; - -/** The Event class is a unicast message directed at all modules. - * When the class is properly instantiated it may be sent to all modules - * using the Send() method, which will trigger the OnEvent method in - * all modules passing the object as its parameter. - */ -class CoreExport Event : public ModuleMessage +class CoreExport DataProvider : public ServiceProvider { - protected: - /** This member holds a pointer to arbitary data set by the emitter of the message - */ - char* data; - /** This is a pointer to the sender of the message, which can be used to - * directly trigger events, or to create a reply. - */ - Module* source; - /** The event identifier. - * This is arbitary text which should be used to distinguish - * one type of event from another. - */ - std::string id; public: - /** Create a new Event - */ - Event(char* anydata, Module* src, const std::string &eventid); - /** Get the Event data - */ - char* GetData(); - /** Get the event Source - */ - Module* GetSource(); - /** Get the event ID. - * Use this to determine the event type for safe casting of the data - */ - std::string GetEventID(); - /** Send the Event. - * The return result of an Event::Send() will always be NULL as - * no replies are expected. - */ - char* Send(InspIRCd* ServerInstance); + DataProvider(Module* Creator, const std::string& Name) + : ServiceProvider(Creator, Name, SERVICE_DATA) {} }; -/** Priority types which can be returned from Module::Prioritize() +/** Priority types which can be used by Module::Prioritize() */ -enum Priority { PRIORITY_FIRST, PRIORITY_DONTCARE, PRIORITY_LAST, PRIORITY_BEFORE, PRIORITY_AFTER }; +enum Priority { PRIORITY_FIRST, PRIORITY_LAST, PRIORITY_BEFORE, PRIORITY_AFTER }; /** Implementation-specific flags which may be set in Module::Implements() */ enum Implementation { - I_BEGIN, - I_OnUserConnect, I_OnUserQuit, I_OnUserDisconnect, I_OnUserJoin, I_OnUserPart, I_OnRehash, - I_OnSendSnotice, I_OnUserPreJoin, I_OnUserPreKick, I_OnUserKick, I_OnOper, I_OnInfo, I_OnWhois, - I_OnUserPreInvite, I_OnUserInvite, I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserPreNick, - I_OnUserMessage, I_OnUserNotice, I_OnMode, I_OnGetServerDescription, I_OnSyncUser, - I_OnSyncChannel, I_OnSyncChannelMetaData, I_OnSyncUserMetaData, I_OnDecodeMetaData, I_OnWallops, - I_OnChangeHost, I_OnChangeName, I_OnAddLine, I_OnDelLine, I_OnExpireLine, I_OnCleanup, - I_OnUserPostNick, I_OnAccessCheck, I_On005Numeric, I_OnKill, I_OnRemoteKill, I_OnLoadModule, - I_OnUnloadModule, I_OnBackgroundTimer, I_OnPreCommand, I_OnCheckReady, I_OnCheckInvite, - I_OnRawMode, I_OnCheckKey, I_OnCheckLimit, I_OnCheckBan, I_OnCheckExtBan, I_OnCheckStringExtBan, - I_OnStats, I_OnChangeLocalUserHost, I_OnChangeLocalUserGecos, I_OnLocalTopicChange, - I_OnPostLocalTopicChange, I_OnEvent, I_OnRequest, I_OnGlobalOper, I_OnPostConnect, I_OnAddBan, - I_OnDelBan, I_OnRawSocketAccept, I_OnRawSocketClose, I_OnRawSocketWrite, I_OnRawSocketRead, - I_OnChangeLocalUserGECOS, I_OnUserRegister, I_OnChannelPreDelete, I_OnChannelDelete, - I_OnPostOper, I_OnSyncOtherMetaData, I_OnSetAway, I_OnUserList, I_OnPostCommand, I_OnPostJoin, - I_OnWhoisLine, I_OnBuildExemptList, I_OnRawSocketConnect, I_OnGarbageCollect, I_OnBufferFlushed, - I_OnText, I_OnPassCompare, I_OnRunTestSuite, I_OnNamesListItem, I_OnNumeric, I_OnHookUserIO, - I_OnHostCycle, I_OnPreRehash, I_OnModuleRehash, + I_On005Numeric, + I_OnAcceptConnection, + I_OnAddLine, + I_OnBackgroundTimer, + I_OnBuildNeighborList, + I_OnChangeHost, + I_OnChangeRealHost, + I_OnChangeIdent, + I_OnChangeRealName, + I_OnChannelDelete, + I_OnChannelPreDelete, + I_OnCheckBan, + I_OnCheckChannelBan, + I_OnCheckInvite, + I_OnCheckKey, + I_OnCheckLimit, + I_OnCheckReady, + I_OnCommandBlocked, + I_OnConnectionFail, + I_OnDecodeMetaData, + I_OnDelLine, + I_OnExpireLine, + I_OnExtBanCheck, + I_OnGarbageCollect, + I_OnKill, + I_OnLoadModule, + I_OnMode, + I_OnModuleRehash, + I_OnNumeric, + I_OnOper, + I_OnPassCompare, + I_OnPostCommand, + I_OnPostConnect, + I_OnPostDeoper, + I_OnPostJoin, + I_OnPostOper, + I_OnPostTopicChange, + I_OnPreChangeHost, + I_OnPreChangeRealName, + I_OnPreCommand, + I_OnPreMode, + I_OnPreRehash, + I_OnPreTopicChange, + I_OnRawMode, + I_OnSendSnotice, + I_OnServiceAdd, + I_OnServiceDel, + I_OnSetConnectClass, + I_OnSetUserIP, + I_OnShutdown, + I_OnUnloadModule, + I_OnUserConnect, + I_OnUserDisconnect, + I_OnUserInit, + I_OnUserInvite, + I_OnUserJoin, + I_OnUserKick, + I_OnUserMessage, + I_OnUserMessageBlocked, + I_OnUserPart, + I_OnUserPostInit, + I_OnUserPostMessage, + I_OnUserPostNick, + I_OnUserPreInvite, + I_OnUserPreJoin, + I_OnUserPreKick, + I_OnUserPreMessage, + I_OnUserPreNick, + I_OnUserPreQuit, + I_OnUserQuit, + I_OnUserRegister, + I_OnUserWrite, I_END }; -class ConfigReader; - /** Base class for all InspIRCd modules * This class is the base class for InspIRCd modules. All modules must inherit from this class, * its methods will be called when irc server events occur. class inherited from module must be - * instantiated by the ModuleFactory class (see relevent section) for the module to be initialised. + * instantiated by the ModuleFactory class (see relevant section) for the module to be initialised. */ -class CoreExport Module : public Extensible +class CoreExport Module : public classbase, public usecountbase { - protected: - /** Creator/owner pointer + /** Detach an event from this module + * @param i Event type to detach */ - InspIRCd* ServerInstance; + void DetachEvent(Implementation i); + public: + /** A list of modules. */ + typedef std::vector List; + + /** File that this module was loaded from + */ + std::string ModuleSourceFile; + + /** Reference to the dlopen() value + */ + DLLManager* ModuleDLLManager; + + /** If true, this module will be unloaded soon, further unload attempts will fail + * Value is used by the ModuleManager internally, you should not modify it + */ + bool dying; /** Default constructor. - * Creates a module class. - * @param Me An instance of the InspIRCd class which will be saved into ServerInstance for your use + * Creates a module class. Don't do any type of hook registration or checks + * for other modules here; do that in init(). + */ + Module(); + + /** Module setup * \exception ModuleException Throwing this class, or any class derived from ModuleException, causes loading of the module to abort. */ - Module(InspIRCd* Me); + virtual void init() { } + + /** Clean up prior to destruction + * If you override, you must call this AFTER your module's cleanup + */ + CullResult cull() CXX11_OVERRIDE; /** Default destructor. * destroys a module class */ virtual ~Module(); - virtual void Prioritize() - { - } + /** Called when the hooks provided by a module need to be prioritised. */ + virtual void Prioritize() { } + + /** This method is called when you should reload module specific configuration: + * on boot, on a /REHASH and on module load. + * @param status The current status, can be inspected for more information; + * also used for reporting configuration errors and warnings. + */ + virtual void ReadConfig(ConfigStatus& status); /** Returns the version number of a Module. * The method should return a Version object with its version information assigned via * Version::Version */ - virtual Version GetVersion(); + virtual Version GetVersion() = 0; /** Called when a user connects. * The details of the connecting user are available to you in the parameter User *user * @param user The user who is connecting */ - virtual void OnUserConnect(User* user); + virtual void OnUserConnect(LocalUser* user); + + /** Called when before a user quits. + * The details of the exiting user are available to you in the parameter User *user + * This event is only called when the user is fully registered when they quit. To catch + * raw disconnections, use the OnUserDisconnect method. + * @param user The user who is quitting + * @param message The user's quit message (as seen by non-opers) + * @param oper_message The user's quit message (as seen by opers) + */ + virtual ModResult OnUserPreQuit(LocalUser* user, std::string& message, std::string& oper_message); /** Called when a user quits. * The details of the exiting user are available to you in the parameter User *user @@ -489,13 +406,13 @@ class CoreExport Module : public Extensible * which might assign resources to user, such as dns lookups, objects and sockets. * @param user The user who is disconnecting */ - virtual void OnUserDisconnect(User* user); + virtual void OnUserDisconnect(LocalUser* user); /** Called whenever a channel is about to be deleted * @param chan The channel being deleted * @return An integer specifying whether or not the channel may be deleted. 0 for yes, 1 for no. */ - virtual int OnChannelPreDelete(Channel *chan); + virtual ModResult OnChannelPreDelete(Channel *chan); /** Called whenever a channel is deleted, either by QUIT, KICK or PART. * @param chan The channel being deleted @@ -505,34 +422,29 @@ class CoreExport Module : public Extensible /** Called when a user joins a channel. * The details of the joining user are available to you in the parameter User *user, * and the details of the channel they have joined is available in the variable Channel *channel - * @param user The user who is joining - * @param channel The channel being joined - * @param silent Change this to true if you want to conceal the JOIN command from the other users - * of the channel (useful for modules such as auditorium) + * @param memb The channel membership being created * @param sync This is set to true if the JOIN is the result of a network sync and the remote user is being introduced * to a channel due to the network sync. * @param created This is true if the join created the channel + * @param except_list A list of users not to send to. */ - virtual void OnUserJoin(User* user, Channel* channel, bool sync, bool &silent, bool created); + virtual void OnUserJoin(Membership* memb, bool sync, bool created, CUList& except_list); /** Called after a user joins a channel * Identical to OnUserJoin, but called immediately afterwards, when any linking module has * seen the join. - * @param user The user who is joining - * @param channel The channel being joined + * @param memb The channel membership created */ - virtual void OnPostJoin(User* user, Channel* channel); + virtual void OnPostJoin(Membership* memb); /** Called when a user parts a channel. * The details of the leaving user are available to you in the parameter User *user, * and the details of the channel they have left is available in the variable Channel *channel - * @param user The user who is parting - * @param channel The channel being parted + * @param memb The channel membership being destroyed * @param partmessage The part message, or an empty string (may be modified) - * @param silent Change this to true if you want to conceal the PART command from the other users - * of the channel (useful for modules such as auditorium) + * @param except_list A list of users to not send to. */ - virtual void OnUserPart(User* user, Channel* channel, std::string &partmessage, bool &silent); + virtual void OnUserPart(Membership* memb, std::string &partmessage, CUList& except_list); /** Called on rehash. * This method is called prior to a /REHASH or when a SIGHUP is received from the operating @@ -548,7 +460,7 @@ class CoreExport Module : public Extensible /** Called on rehash. * This method is called when a user initiates a module-specific rehash. This can be used to do - * expensive operations (such as reloading SSL certificates) that are not executed on a normal + * expensive operations (such as reloading TLS (SSL) certificates) that are not executed on a normal * rehash for efficiency. A rehash of this type does not reload the core configuration. * * @param user The user performing the rehash. @@ -556,14 +468,6 @@ class CoreExport Module : public Extensible */ virtual void OnModuleRehash(User* user, const std::string ¶meter); - /** Called on rehash. - * This method is called after a rehash has completed. You should use it to reload any module - * configuration from the main configuration file. - * @param user The user that performed the rehash, if it was initiated by a user and that user - * is still connected. - */ - virtual void OnRehash(User* user); - /** Called whenever a snotice is about to be sent to a snomask. * snomask and type may both be modified; the message may not. * @param snomask The snomask the message is going to (e.g. 'A') @@ -571,7 +475,7 @@ class CoreExport Module : public Extensible * @param message The text message to be sent via snotice * @return 1 to block the snotice from being sent entirely, 0 else. */ - virtual int OnSendSnotice(char &snomask, std::string &type, const std::string &message); + virtual ModResult OnSendSnotice(char &snomask, std::string &type, const std::string &message); /** Called whenever a user is about to join a channel, before any processing is done. * Returning a value of 1 from this function stops the process immediately, causing no @@ -588,36 +492,33 @@ class CoreExport Module : public Extensible * @param user The user joining the channel * @param chan If the channel is a new channel, this will be NULL, otherwise it will be a pointer to the channel being joined * @param cname The channel name being joined. For new channels this is valid where chan is not. - * @param privs A string containing the users privilages when joining the channel. For new channels this will contain "@". + * @param privs A string containing the users privilages when joining the channel. For new channels this will contain "o". * You may alter this string to alter the user's modes on the channel. * @param keygiven The key given to join the channel, or an empty string if none was provided * @return 1 To prevent the join, 0 to allow it. */ - virtual int OnUserPreJoin(User* user, Channel* chan, const char* cname, std::string &privs, const std::string &keygiven); + virtual ModResult OnUserPreJoin(LocalUser* user, Channel* chan, const std::string& cname, std::string& privs, const std::string& keygiven); /** Called whenever a user is about to be kicked. * Returning a value of 1 from this function stops the process immediately, causing no * output to be sent to the user by the core. If you do this you must produce your own numerics, * notices etc. * @param source The user issuing the kick - * @param user The user being kicked - * @param chan The channel the user is being kicked from + * @param memb The channel membership of the user who is being kicked. * @param reason The kick reason * @return 1 to prevent the kick, 0 to continue normally, -1 to explicitly allow the kick regardless of normal operation */ - virtual int OnUserPreKick(User* source, User* user, Channel* chan, const std::string &reason); + virtual ModResult OnUserPreKick(User* source, Membership* memb, const std::string &reason); /** Called whenever a user is kicked. * If this method is called, the kick is already underway and cannot be prevented, so * to prevent a kick, please use Module::OnUserPreKick instead of this method. * @param source The user issuing the kick - * @param user The user being kicked - * @param chan The channel the user is being kicked from + * @param memb The channel membership of the user who was kicked. * @param reason The kick reason - * @param silent Change this to true if you want to conceal the PART command from the other users - * of the channel (useful for modules such as auditorium) + * @param except_list A list of users to not send to. */ - virtual void OnUserKick(User* source, User* user, Channel* chan, const std::string &reason, bool &silent); + virtual void OnUserKick(User* source, Membership* memb, const std::string &reason, CUList& except_list); /** Called whenever a user opers locally. * The User will contain the oper mode 'o' as this function is called after any modifications @@ -629,7 +530,7 @@ class CoreExport Module : public Extensible /** Called after a user opers locally. * This is identical to Module::OnOper(), except it is called after OnOper so that other modules - * can be gauranteed to already have processed the oper-up, for example m_spanningtree has sent + * can be guaranteed to already have processed the oper-up, for example m_spanningtree has sent * out the OPERTYPE, etc. * @param user The user who is opering up * @param opername The name of the oper that the user is opering up to. Only valid locally. Empty string otherwise. @@ -637,25 +538,10 @@ class CoreExport Module : public Extensible */ virtual void OnPostOper(User* user, const std::string &opername, const std::string &opertype); - /** Called whenever a user types /INFO. - * The User will contain the information of the user who typed the command. Modules may use this - * method to output their own credits in /INFO (which is the ircd's version of an about box). - * It is purposefully not possible to modify any info that has already been output, or halt the list. - * You must write a 371 numeric to the user, containing your info in the following format: - * - * <nick> :information here - * - * @param user The user issuing /INFO - */ - virtual void OnInfo(User* user); - - /** Called whenever a /WHOIS is performed on a local user. - * The source parameter contains the details of the user who issued the WHOIS command, and - * the dest parameter contains the information of the user they are whoising. - * @param source The user issuing the WHOIS command - * @param dest The user who is being WHOISed + /** Called after a user deopers locally. + * @param user The user who has deopered. */ - virtual void OnWhois(User* source, User* dest); + virtual void OnPostDeoper(User* user); /** Called whenever a user is about to invite another user into a channel, before any processing is done. * Returning 1 from this function stops the process immediately, causing no @@ -667,258 +553,98 @@ class CoreExport Module : public Extensible * @param timeout The time the invite will expire (0 == never) * @return 1 to deny the invite, 0 to check whether or not the user has permission to invite, -1 to explicitly allow the invite */ - virtual int OnUserPreInvite(User* source,User* dest,Channel* channel, time_t timeout); + virtual ModResult OnUserPreInvite(User* source,User* dest,Channel* channel, time_t timeout); /** Called after a user has been successfully invited to a channel. - * You cannot prevent the invite from occuring using this function, to do that, + * You cannot prevent the invite from occurring using this function, to do that, * use OnUserPreInvite instead. * @param source The user who is issuing the INVITE * @param dest The user being invited * @param channel The channel the user is being invited to * @param timeout The time the invite will expire (0 == never) + * @param notifyrank Rank required to get an invite announcement (if enabled) + * @param notifyexcepts List of users to not send the default NOTICE invite announcement to + */ + virtual void OnUserInvite(User* source, User* dest, Channel* channel, time_t timeout, unsigned int notifyrank, CUList& notifyexcepts); + + /** Called before a user sends a message to a channel, a user, or a server glob mask. + * @param user The user sending the message. + * @param target The target of the message. This can either be a channel, a user, or a server + * glob mask. + * @param details Details about the message such as the message text and type. See the + * MessageDetails class for more information. + * @return MOD_RES_ALLOW to explicitly allow the message, MOD_RES_DENY to explicitly deny the + * message, or MOD_RES_PASSTHRU to let another module handle the event. + */ + virtual ModResult OnUserPreMessage(User* user, const MessageTarget& target, MessageDetails& details); + + /** Called when sending a message to all "neighbors" of a given user - + * that is, all users that share a common channel. This is used in + * commands such as NICK, QUIT, etc. + * @param source The source of the message + * @param include_c Channels to scan for users to include + * @param exceptions Map of user->bool that overrides the inclusion decision + * + * Set exceptions[user] = true to include, exceptions[user] = false to exclude */ - virtual void OnUserInvite(User* source,User* dest,Channel* channel, time_t timeout); + virtual void OnBuildNeighborList(User* source, IncludeChanList& include_c, std::map& exceptions); - /** Called whenever a user is about to PRIVMSG A user or a channel, before any processing is done. - * Returning any nonzero value from this function stops the process immediately, causing no - * output to be sent to the user by the core. If you do this you must produce your own numerics, - * notices etc. This is useful for modules which may want to filter or redirect messages. - * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user, - * you must cast dest to a User* otherwise you must cast it to a Channel*, this is the details - * of where the message is destined to be sent. - * @param user The user sending the message - * @param dest The target of the message (Channel* or User*) - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text Changeable text being sent by the user - * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone. - * @param exempt_list A list of users not to send to. For channel messages, this will usually contain just the sender. - * It will be ignored for private messages. - * @return 1 to deny the message, 0 to allow it - */ - virtual int OnUserPreMessage(User* user,void* dest,int target_type, std::string &text,char status, CUList &exempt_list); - - /** Called whenever a user is about to NOTICE A user or a channel, before any processing is done. - * Returning any nonzero value from this function stops the process immediately, causing no - * output to be sent to the user by the core. If you do this you must produce your own numerics, - * notices etc. This is useful for modules which may want to filter or redirect messages. - * target_type can be one of TYPE_USER or TYPE_CHANNEL. If the target_type value is a user, - * you must cast dest to a User* otherwise you must cast it to a Channel*, this is the details - * of where the message is destined to be sent. - * You may alter the message text as you wish before relinquishing control to the next module - * in the chain, and if no other modules block the text this altered form of the text will be sent out - * to the user and possibly to other servers. - * @param user The user sending the message - * @param dest The target of the message (Channel* or User*) - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text Changeable text being sent by the user - * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone. - * @param exempt_list A list of users not to send to. For channel notices, this will usually contain just the sender. - * It will be ignored for private notices. - * @return 1 to deny the NOTICE, 0 to allow it - */ - virtual int OnUserPreNotice(User* user,void* dest,int target_type, std::string &text,char status, CUList &exempt_list); - - /** Called whenever the server wants to build the exemption list for a channel, but is not directly doing a PRIVMSG or NOTICE. - * For example, the spanningtree protocol will call this event when passing a privmsg on (but not processing it directly). - * @param message_type The message type, either MSG_PRIVMSG or MSG_NOTICE - * @param chan The channel to build the exempt list of - * @param sender The original sender of the PRIVMSG or NOTICE - * @param status The status char to be used for the channel list - * @param exempt_list The exempt list to be populated - * @param text The original message text causing the exempt list to be built - */ - virtual void OnBuildExemptList(MessageType message_type, Channel* chan, User* sender, char status, CUList &exempt_list, const std::string &text); - - /** Called before any nickchange, local or remote. This can be used to implement Q-lines etc. - * Please note that although you can see remote nickchanges through this function, you should - * NOT make any changes to the User if the user is a remote user as this may cause a desnyc. - * check user->server before taking any action (including returning nonzero from the method). + /** Called before local nickname changes. This can be used to implement Q-lines etc. * If your method returns nonzero, the nickchange is silently forbidden, and it is down to your * module to generate some meaninful output. * @param user The username changing their nick * @param newnick Their new nickname * @return 1 to deny the change, 0 to allow */ - virtual int OnUserPreNick(User* user, const std::string &newnick); - - /** Called after any PRIVMSG sent from a user. - * The dest variable contains a User* if target_type is TYPE_USER and a Channel* - * if target_type is TYPE_CHANNEL. - * @param user The user sending the message - * @param dest The target of the message - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text the text being sent by the user - * @param status The status being used, e.g. PRIVMSG @#chan has status== '@', 0 to send to everyone. - */ - virtual void OnUserMessage(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list); - - /** Called after any NOTICE sent from a user. - * The dest variable contains a User* if target_type is TYPE_USER and a Channel* - * if target_type is TYPE_CHANNEL. - * @param user The user sending the message - * @param dest The target of the message - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text the text being sent by the user - * @param status The status being used, e.g. NOTICE @#chan has status== '@', 0 to send to everyone. - */ - virtual void OnUserNotice(User* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list); - - /** Called immediately before any NOTICE or PRIVMSG sent from a user, local or remote. - * The dest variable contains a User* if target_type is TYPE_USER and a Channel* - * if target_type is TYPE_CHANNEL. - * The difference between this event and OnUserPreNotice/OnUserPreMessage is that delivery is gauranteed, - * the message has already been vetted. In the case of the other two methods, a later module may stop your - * message. This also differs from OnUserMessage which occurs AFTER the message has been sent. - * @param user The user sending the message - * @param dest The target of the message - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text the text being sent by the user - * @param status The status being used, e.g. NOTICE @#chan has status== '@', 0 to send to everyone. - */ - virtual void OnText(User* user, void* dest, int target_type, const std::string &text, char status, CUList &exempt_list); + virtual ModResult OnUserPreNick(LocalUser* user, const std::string& newnick); + + /** Called immediately after a user sends a message to a channel, a user, or a server glob mask. + * @param user The user sending the message. + * @param target The target of the message. This can either be a channel, a user, or a server + * glob mask. + * @param details Details about the message such as the message text and type. See the + * MessageDetails class for more information. + */ + virtual void OnUserPostMessage(User* user, const MessageTarget& target, const MessageDetails& details); + + /** Called immediately before a user sends a message to a channel, a user, or a server glob mask. + * @param user The user sending the message. + * @param target The target of the message. This can either be a channel, a user, or a server + * glob mask. + * @param details Details about the message such as the message text and type. See the + * MessageDetails class for more information. + */ + virtual void OnUserMessage(User* user, const MessageTarget& target, const MessageDetails& details); + + /** Called when a message sent by a user to a channel, a user, or a server glob mask is blocked. + * @param user The user sending the message. + * @param target The target of the message. This can either be a channel, a user, or a server + * glob mask. + * @param details Details about the message such as the message text and type. See the + * MessageDetails class for more information. + */ + virtual void OnUserMessageBlocked(User* user, const MessageTarget& target, const MessageDetails& details); /** Called after every MODE command sent from a user - * The dest variable contains a User* if target_type is TYPE_USER and a Channel* - * if target_type is TYPE_CHANNEL. The text variable contains the remainder of the - * mode string after the target, e.g. "+wsi" or "+ooo nick1 nick2 nick3". + * Either the usertarget or the chantarget variable contains the target of the modes, + * the actual target will have a non-NULL pointer. + * All changed modes are available in the changelist object. * @param user The user sending the MODEs - * @param dest The target of the modes (User* or Channel*) - * @param target_type The type of target (TYPE_USER or TYPE_CHANNEL) - * @param text The actual modes and their parameters if any - * @param translate The translation types of the mode parameters - */ - virtual void OnMode(User* user, void* dest, int target_type, const std::vector &text, const std::vector &translate); - - /** Allows modules to alter or create server descriptions - * Whenever a module requires a server description, for example for display in - * WHOIS, this function is called in all modules. You may change or define the - * description given in std::string &description. If you do, this description - * will be shown in the WHOIS fields. - * @param servername The servername being searched for - * @param description Alterable server description for this server - */ - virtual void OnGetServerDescription(const std::string &servername,std::string &description); - - /** Allows modules to synchronize data which relates to users during a netburst. - * When this function is called, it will be called from the module which implements - * the linking protocol. This currently is m_spanningtree.so. A pointer to this module - * is given in Module* proto, so that you may call its methods such as ProtoSendMode - * (see below). This function will be called for every user visible on your side - * of the burst, allowing you to for example set modes, etc. Do not use this call to - * synchronize data which you have stored using class Extensible -- There is a specialist - * function OnSyncUserMetaData and OnSyncChannelMetaData for this! - * @param user The user being syncronized - * @param proto A pointer to the module handling network protocol - * @param opaque An opaque pointer set by the protocol module, should not be modified! - */ - virtual void OnSyncUser(User* user, Module* proto, void* opaque); - - /** Allows modules to synchronize data which relates to channels during a netburst. - * When this function is called, it will be called from the module which implements - * the linking protocol. This currently is m_spanningtree.so. A pointer to this module - * is given in Module* proto, so that you may call its methods such as ProtoSendMode - * (see below). This function will be called for every user visible on your side - * of the burst, allowing you to for example set modes, etc. Do not use this call to - * synchronize data which you have stored using class Extensible -- There is a specialist - * function OnSyncUserMetaData and OnSyncChannelMetaData for this! - * - * For a good example of how to use this function, please see src/modules/m_chanprotect.cpp - * - * @param chan The channel being syncronized - * @param proto A pointer to the module handling network protocol - * @param opaque An opaque pointer set by the protocol module, should not be modified! - */ - virtual void OnSyncChannel(Channel* chan, Module* proto, void* opaque); - - /* Allows modules to syncronize metadata related to channels over the network during a netburst. - * Whenever the linking module wants to send out data, but doesnt know what the data - * represents (e.g. it is Extensible metadata, added to a User or Channel by a module) then - * this method is called.You should use the ProtoSendMetaData function after you've - * correctly decided how the data should be represented, to send the metadata on its way if it belongs - * to your module. For a good example of how to use this method, see src/modules/m_swhois.cpp. - * @param chan The channel whos metadata is being syncronized - * @param proto A pointer to the module handling network protocol - * @param opaque An opaque pointer set by the protocol module, should not be modified! - * @param extname The extensions name which is being searched for - * @param displayable If this value is true, the data is going to be displayed to a user, - * and not sent across the network. Use this to determine wether or not to show sensitive data. - */ - virtual void OnSyncChannelMetaData(Channel* chan, Module* proto,void* opaque, const std::string &extname, bool displayable = false); - - /* Allows modules to syncronize metadata related to users over the network during a netburst. - * Whenever the linking module wants to send out data, but doesnt know what the data - * represents (e.g. it is Extensible metadata, added to a User or Channel by a module) then - * this method is called. You should use the ProtoSendMetaData function after you've - * correctly decided how the data should be represented, to send the metadata on its way if - * if it belongs to your module. - * @param user The user whos metadata is being syncronized - * @param proto A pointer to the module handling network protocol - * @param opaque An opaque pointer set by the protocol module, should not be modified! - * @param extname The extensions name which is being searched for - * @param displayable If this value is true, the data is going to be displayed to a user, - * and not sent across the network. Use this to determine wether or not to show sensitive data. - */ - virtual void OnSyncUserMetaData(User* user, Module* proto,void* opaque, const std::string &extname, bool displayable = false); - - /* Allows modules to syncronize metadata not related to users or channels, over the network during a netburst. - * Whenever the linking module wants to send out data, but doesnt know what the data - * represents (e.g. it is Extensible metadata, added to a User or Channel by a module) then - * this method is called. You should use the ProtoSendMetaData function after you've - * correctly decided how the data should be represented, to send the metadata on its way if - * if it belongs to your module. - * @param proto A pointer to the module handling network protocol - * @param opaque An opaque pointer set by the protocol module, should not be modified! - * @param displayable If this value is true, the data is going to be displayed to a user, - * and not sent across the network. Use this to determine wether or not to show sensitive data. - */ - virtual void OnSyncOtherMetaData(Module* proto, void* opaque, bool displayable = false); + * @param usertarget The target user of the modes, NULL if the target is a channel + * @param chantarget The target channel of the modes, NULL if the target is a user + * @param changelist The changed modes. + * @param processflags Flags passed to ModeParser::Process(), see ModeParser::ModeProcessFlags + * for the possible flags. + */ + virtual void OnMode(User* user, User* usertarget, Channel* chantarget, const Modes::ChangeList& changelist, ModeParser::ModeProcessFlag processflags); /** Allows module data, sent via ProtoSendMetaData, to be decoded again by a receiving module. * Please see src/modules/m_swhois.cpp for a working example of how to use this method call. - * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL * @param target The Channel* or User* that data should be added to * @param extname The extension name which is being sent - * @param extdata The extension data, encoded at the other end by an identical module through OnSyncChannelMetaData or OnSyncUserMetaData + * @param extdata The extension data, encoded at the other end by an identical module */ - virtual void OnDecodeMetaData(int target_type, void* target, const std::string &extname, const std::string &extdata); - - /** Implemented by modules which provide the ability to link servers. - * These modules will implement this method, which allows transparent sending of servermodes - * down the network link as a broadcast, without a module calling it having to know the format - * of the MODE command before the actual mode string. - * - * More documentation to follow soon. Please see src/modules/m_chanprotect.cpp for examples - * of how to use this function. - * - * @param opaque An opaque pointer set by the protocol module, should not be modified! - * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL - * @param target The Channel* or User* that modes should be sent for - * @param modeline The modes and parameters to be sent - * @param translate The translation types of the mode parameters - */ - virtual void ProtoSendMode(void* opaque, TargetTypeFlags target_type, void* target, const std::vector &modeline, const std::vector &translate); - - /** Implemented by modules which provide the ability to link servers. - * These modules will implement this method, which allows metadata (extra data added to - * user and channel records using class Extensible, Extensible::Extend, etc) to be sent - * to other servers on a netburst and decoded at the other end by the same module on a - * different server. - * - * More documentation to follow soon. Please see src/modules/m_swhois.cpp for example of - * how to use this function. - * @param opaque An opaque pointer set by the protocol module, should not be modified! - * @param target_type The type of item to decode data for, TYPE_USER or TYPE_CHANNEL - * @param target The Channel* or User* that metadata should be sent for - * @param extname The extension name to send metadata for - * @param extdata Encoded data for this extension name, which will be encoded at the oppsite end by an identical module using OnDecodeMetaData - */ - virtual void ProtoSendMetaData(void* opaque, TargetTypeFlags target_type, void* target, const std::string &extname, const std::string &extdata); - - /** Called after every WALLOPS command. - * @param user The user sending the WALLOPS - * @param text The content of the WALLOPS message - */ - virtual void OnWallops(User* user, const std::string &text); + virtual void OnDecodeMetaData(Extensible* target, const std::string &extname, const std::string &extdata); /** Called whenever a user's hostname is changed. * This event triggers after the host has been set. @@ -927,12 +653,26 @@ class CoreExport Module : public Extensible */ virtual void OnChangeHost(User* user, const std::string &newhost); - /** Called whenever a user's GECOS (realname) is changed. + /** Called whenever a user's real hostname is changed. + * This event triggers after the host has been set. + * @param user The user whos host is being changed + * @param newhost The new hostname being set + */ + virtual void OnChangeRealHost(User* user, const std::string& newhost); + + /** Called whenever a user's real name is changed. * This event triggers after the name has been set. - * @param user The user who's GECOS is being changed - * @param gecos The new GECOS being set on the user + * @param user The user who's real name is being changed + * @param real The new real name being set on the user */ - virtual void OnChangeName(User* user, const std::string &gecos); + virtual void OnChangeRealName(User* user, const std::string& real); + + /** Called whenever a user's IDENT is changed. + * This event triggers after the name has been set. + * @param user The user who's IDENT is being changed + * @param ident The new IDENT being set on the user + */ + virtual void OnChangeIdent(User* user, const std::string &ident); /** Called whenever an xline is added by a local user. * This method is triggered after the line is added. @@ -954,16 +694,15 @@ class CoreExport Module : public Extensible */ virtual void OnExpireLine(XLine *line); - /** Called before your module is unloaded to clean up Extensibles. - * This method is called once for every user and channel on the network, - * so that when your module unloads it may clear up any remaining data - * in the form of Extensibles added using Extensible::Extend(). - * If the target_type variable is TYPE_USER, then void* item refers to - * a User*, otherwise it refers to a Channel*. - * @param target_type The type of item being cleaned - * @param item A pointer to the item's class + /** Called before the module is unloaded to clean up extensibles. + * This method is called once for every channel, membership, and user. + * so that you can clear up any data relating to the specified extensible. + * @param type The type of extensible being cleaned up. If this is EXT_CHANNEL + * then item is a Channel*, EXT_MEMBERSHIP then item is a Membership*, + * and EXT_USER then item is a User*. + * @param item A pointer to the extensible which is being cleaned up. */ - virtual void OnCleanup(int target_type, void* item); + virtual void OnCleanup(ExtensionItem::ExtensibleType type, Extensible* item); /** Called after any nickchange, local or remote. This can be used to track users after nickchanges * have been applied. Please note that although you can see remote nickchanges through this function, you should @@ -976,38 +715,24 @@ class CoreExport Module : public Extensible */ virtual void OnUserPostNick(User* user, const std::string &oldnick); - /** Called before an action which requires a channel privilage check. - * This function is called before many functions which check a users status on a channel, for example - * before opping a user, deopping a user, kicking a user, etc. - * There are several values for access_type which indicate for what reason access is being checked. - * These are:

- * AC_KICK - A user is being kicked
- * AC_DEOP - a user is being deopped
- * AC_OP - a user is being opped
- * AC_VOICE - a user is being voiced
- * AC_DEVOICE - a user is being devoiced
- * AC_HALFOP - a user is being halfopped
- * AC_DEHALFOP - a user is being dehalfopped
- * AC_INVITE - a user is being invited
- * AC_GENERAL_MODE - a user channel mode is being changed

- * Upon returning from your function you must return either ACR_DEFAULT, to indicate the module wishes - * to do nothing, or ACR_DENY where approprate to deny the action, and ACR_ALLOW where appropriate to allow - * the action. Please note that in the case of some access checks (such as AC_GENERAL_MODE) access may be - * denied 'upstream' causing other checks such as AC_DEOP to not be reached. Be very careful with use of the - * AC_GENERAL_MODE type, as it may inadvertently override the behaviour of other modules. When the access_type - * is AC_GENERAL_MODE, the destination of the mode will be NULL (as it has not yet been determined). - * @param source The source of the access check - * @param dest The destination of the access check - * @param channel The channel which is being checked - * @param access_type See above - */ - virtual int OnAccessCheck(User* source,User* dest,Channel* channel,int access_type); + /** Called before a mode change via the MODE command, to allow a single access check for + * a full mode change (use OnRawMode to check individual modes) + * + * Returning MOD_RES_ALLOW will skip prefix level checks, but can be overridden by + * OnRawMode for each individual mode + * + * @param source the user making the mode change + * @param dest the user destination of the umode change (NULL if a channel mode) + * @param channel the channel destination of the mode change + * @param modes Modes being changed, can be edited + */ + virtual ModResult OnPreMode(User* source, User* dest, Channel* channel, Modes::ChangeList& modes); /** Called when a 005 numeric is about to be output. * The module should modify the 005 numeric if needed to indicate its features. - * @param output The 005 string to be modified if neccessary. - */ - virtual void On005Numeric(std::string &output); + * @param tokens The 005 map to be modified if necessary. + */ + virtual void On005Numeric(std::map& tokens); /** Called when a client is disconnected by KILL. * If a client is killed by a server, e.g. a nickname collision or protocol error, @@ -1022,14 +747,7 @@ class CoreExport Module : public Extensible * @param reason The kill reason * @return 1 to prevent the kill, 0 to allow */ - virtual int OnKill(User* source, User* dest, const std::string &reason); - - /** Called when an oper wants to disconnect a remote user via KILL - * @param source The user sending the KILL - * @param dest The user being killed - * @param reason The kill reason - */ - virtual void OnRemoteKill(User* source, User* dest, const std::string &reason, const std::string &operreason); + virtual ModResult OnKill(User* source, User* dest, const std::string &reason); /** Called whenever a module is loaded. * mod will contain a pointer to the module, and string will contain its name, @@ -1038,12 +756,11 @@ class CoreExport Module : public Extensible * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly * recommended that modules do *NOT* bail if they cannot satisfy dependencies, * but instead operate under reduced functionality, unless the dependency is - * absolutely neccessary (e.g. a module that extends the features of another + * absolutely necessary (e.g. a module that extends the features of another * module). * @param mod A pointer to the new module - * @param name The new module's filename */ - virtual void OnLoadModule(Module* mod,const std::string &name); + virtual void OnLoadModule(Module* mod); /** Called whenever a module is unloaded. * mod will contain a pointer to the module, and string will contain its name, @@ -1052,54 +769,71 @@ class CoreExport Module : public Extensible * for example loaded "m_killwidgets.so" with "m_makewidgets.so". It is highly * recommended that modules do *NOT* bail if they cannot satisfy dependencies, * but instead operate under reduced functionality, unless the dependency is - * absolutely neccessary (e.g. a module that extends the features of another + * absolutely necessary (e.g. a module that extends the features of another * module). * @param mod Pointer to the module being unloaded (still valid) - * @param name The filename of the module being unloaded */ - virtual void OnUnloadModule(Module* mod,const std::string &name); + virtual void OnUnloadModule(Module* mod); /** Called once every five seconds for background processing. * This timer can be used to control timed features. Its period is not accurate - * enough to be used as a clock, but it is gauranteed to be called at least once in + * enough to be used as a clock, but it is guaranteed to be called at least once in * any five second period, directly from the main loop of the server. * @param curtime The current timer derived from time(2) */ virtual void OnBackgroundTimer(time_t curtime); /** Called whenever any command is about to be executed. - * This event occurs for all registered commands, wether they are registered in the core, + * This event occurs for all registered commands, whether they are registered in the core, * or another module, and for invalid commands. Invalid commands may only be sent to this * function when the value of validated is false. By returning 1 from this method you may prevent the * command being executed. If you do this, no output is created by the core, and it is - * down to your module to produce any output neccessary. + * down to your module to produce any output necessary. * Note that unless you return 1, you should not destroy any structures (e.g. by using * InspIRCd::QuitUser) otherwise when the command's handler function executes after your * method returns, it will be passed an invalid pointer to the user object and crash!) * @param command The command being executed * @param parameters An array of array of characters containing the parameters for the command - * @param pcnt The nuimber of parameters passed to the command * @param user the user issuing the command * @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. * You should only change the parameter list and command string if validated == false (e.g. before the command lookup occurs). - * @param original_line The entire original line as passed to the parser from the user * @return 1 to block the command, 0 to allow */ - virtual int OnPreCommand(std::string &command, std::vector& parameters, User *user, bool validated, const std::string &original_line); + virtual ModResult OnPreCommand(std::string& command, CommandBase::Params& parameters, LocalUser* user, bool validated); /** Called after any command has been executed. - * This event occurs for all registered commands, wether they are registered in the core, + * This event occurs for all registered commands, whether they are registered in the core, * or another module, but it will not occur for invalid commands (e.g. ones which do not * exist within the command table). The result code returned by the command handler is * provided. * @param command The command being executed * @param parameters An array of array of characters containing the parameters for the command - * @param pcnt The nuimber of parameters passed to the command * @param user the user issuing the command * @param result The return code given by the command handler, one of CMD_SUCCESS or CMD_FAILURE - * @param original_line The entire original line as passed to the parser from the user + * @param loop Whether the command is being called from LoopCall or directly. + */ + virtual void OnPostCommand(Command* command, const CommandBase::Params& parameters, LocalUser* user, CmdResult result, bool loop); + + /** Called when a command was blocked before it could be executed. + * @param command The command being executed. + * @param parameters The parameters for the command. + * @param user The user issuing the command. + */ + virtual void OnCommandBlocked(const std::string& command, const CommandBase::Params& parameters, LocalUser* user); + + /** Called after a user object is initialised and added to the user list. + * When this is called the user has not had their I/O hooks checked or had their initial + * connect class assigned and may not yet have a serialiser. You probably want to use + * the OnUserPostInit or OnUserSetIP hooks instead of this one. + * @param user The connecting user. + */ + virtual void OnUserInit(LocalUser* user); + + /** Called after a user object has had their I/O hooks checked, their initial connection + * class assigned, and had a serialiser set. + * @param user The connecting user. */ - virtual void OnPostCommand(const std::string &command, const std::vector& parameters, User *user, CmdResult result, const std::string &original_line); + virtual void OnUserPostInit(LocalUser* user); /** Called to check if a user who is connecting can now be allowed to register * If any modules return false for this function, the user is held in the waiting @@ -1111,7 +845,7 @@ class CoreExport Module : public Extensible * @param user The user to check * @return true to indicate readiness, false if otherwise */ - virtual bool OnCheckReady(User* user); + virtual ModResult OnCheckReady(LocalUser* user); /** Called whenever a user is about to register their connection (e.g. before the user * is sent the MOTD etc). Modules can use this method if they are performing a function @@ -1122,89 +856,77 @@ class CoreExport Module : public Extensible * @param user The user registering * @return 1 to indicate user quit, 0 to continue */ - virtual int OnUserRegister(User* user); + virtual ModResult OnUserRegister(LocalUser* user); /** Called whenever a user joins a channel, to determine if invite checks should go ahead or not. - * This method will always be called for each join, wether or not the channel is actually +i, and + * This method will always be called for each join, whether or not the channel is actually +i, and * determines the outcome of an if statement around the whole section of invite checking code. * return 1 to explicitly allow the join to go ahead or 0 to ignore the event. * @param user The user joining the channel * @param chan The channel being joined * @return 1 to explicitly allow the join, 0 to proceed as normal */ - virtual int OnCheckInvite(User* user, Channel* chan); + virtual ModResult OnCheckInvite(User* user, Channel* chan); /** Called whenever a mode character is processed. * Return 1 from this function to block the mode character from being processed entirely. * @param user The user who is sending the mode * @param chan The channel the mode is being sent to (or NULL if a usermode) - * @param mode The mode character being set + * @param mh The mode handler for the mode being changed * @param param The parameter for the mode or an empty string * @param adding true of the mode is being added, false if it is being removed - * @param pcnt The parameter count for the mode (0 or 1) * @return ACR_DENY to deny the mode, ACR_DEFAULT to do standard mode checking, and ACR_ALLOW * to skip all permission checking. Please note that for remote mode changes, your return value * will be ignored! */ - virtual int OnRawMode(User* user, Channel* chan, const char mode, const std::string ¶m, bool adding, int pcnt, bool servermode = true); + virtual ModResult OnRawMode(User* user, Channel* chan, ModeHandler* mh, const std::string& param, bool adding); /** Called whenever a user joins a channel, to determine if key checks should go ahead or not. - * This method will always be called for each join, wether or not the channel is actually +k, and + * This method will always be called for each join, whether or not the channel is actually +k, and * determines the outcome of an if statement around the whole section of key checking code. * if the user specified no key, the keygiven string will be a valid but empty value. * return 1 to explicitly allow the join to go ahead or 0 to ignore the event. * @param user The user joining the channel * @param chan The channel being joined + * @param keygiven The key given on joining the channel. * @return 1 to explicitly allow the join, 0 to proceed as normal */ - virtual int OnCheckKey(User* user, Channel* chan, const std::string &keygiven); + virtual ModResult OnCheckKey(User* user, Channel* chan, const std::string &keygiven); /** Called whenever a user joins a channel, to determine if channel limit checks should go ahead or not. - * This method will always be called for each join, wether or not the channel is actually +l, and + * This method will always be called for each join, whether or not the channel is actually +l, and * determines the outcome of an if statement around the whole section of channel limit checking code. * return 1 to explicitly allow the join to go ahead or 0 to ignore the event. * @param user The user joining the channel * @param chan The channel being joined * @return 1 to explicitly allow the join, 0 to proceed as normal */ - virtual int OnCheckLimit(User* user, Channel* chan); + virtual ModResult OnCheckLimit(User* user, Channel* chan); - /** Called whenever a user joins a channel, to determine if banlist checks should go ahead or not. - * This method will always be called for each join, wether or not the user actually matches a channel ban, and - * determines the outcome of an if statement around the whole section of ban checking code. - * return 1 to explicitly allow the join to go ahead or 0 to ignore the event. - * @param user The user joining the channel - * @param chan The channel being joined - * @return 1 to explicitly allow the join, 0 to proceed as normal. Return -1 to explicitly deny the - * join to the channel. - */ - virtual int OnCheckBan(User* user, Channel* chan); - - /* Called whenever checking whether or not a user is matched by an applicable extended bantype. - * NOTE: may also trigger extra OnCheckStringExtBan events! - * @param u The user to check - * @param c The channel the user is on - * @param type The type of extended ban to check for. - * @returns 1 = exempt, 0 = no match, -1 = banned + /** + * Checks for a user's ban from the channel + * @param user The user to check + * @param chan The channel to check in + * @return MOD_RES_DENY to mark as banned, MOD_RES_ALLOW to skip the + * ban check, or MOD_RES_PASSTHRU to check bans normally */ - virtual int OnCheckExtBan(User *u, Channel *c, char type); + virtual ModResult OnCheckChannelBan(User* user, Channel* chan); - /** Called whenever checking whether or not a string is extbanned. NOTE: one OnCheckExtBan will also trigger a number of - * OnCheckStringExtBan events for seperate host/IP comnbinations. - * @returns 1 = exempt, 0 = no match, -1 = banned + /** + * Checks for a user's match of a single ban + * @param user The user to check for match + * @param chan The channel on which the match is being checked + * @param mask The mask being checked + * @return MOD_RES_DENY to mark as banned, MOD_RES_ALLOW to skip the + * ban check, or MOD_RES_PASSTHRU to check bans normally */ - virtual int OnCheckStringExtBan(const std::string &s, Channel *c, char type); + virtual ModResult OnCheckBan(User* user, Channel* chan, const std::string& mask); - /** Called on all /STATS commands - * This method is triggered for all /STATS use, including stats symbols handled by the core. - * @param symbol the symbol provided to /STATS - * @param user the user issuing the /STATS command - * @param results A string_list to append results into. You should put all your results - * into this string_list, rather than displaying them directly, so that your handler will - * work when remote STATS queries are received. - * @return 1 to block the /STATS from being processed by the core, 0 to allow it + /** Checks for a match on a given extban type + * @return MOD_RES_DENY to mark as banned, MOD_RES_ALLOW to skip the + * ban check, or MOD_RES_PASSTHRU to check bans normally */ - virtual int OnStats(char symbol, User* user, string_list &results); + virtual ModResult OnExtBanCheck(User* user, Channel* chan, char type); /** Called whenever a change of a local users displayed host is attempted. * Return 1 to deny the host change, or 0 to allow it. @@ -1212,69 +934,45 @@ class CoreExport Module : public Extensible * @param newhost The new hostname * @return 1 to deny the host change, 0 to allow */ - virtual int OnChangeLocalUserHost(User* user, const std::string &newhost); + virtual ModResult OnPreChangeHost(LocalUser* user, const std::string &newhost); - /** Called whenever a change of a local users GECOS (fullname field) is attempted. - * return 1 to deny the name change, or 0 to allow it. - * @param user The user whos GECOS will be changed - * @param newhost The new GECOS - * @return 1 to deny the GECOS change, 0 to allow + /** Called whenever a change of a local users real name is attempted. + * return MOD_RES_DENY to deny the name change, or MOD_RES_ALLOW to allow it. + * @param user The user whos real name will be changed + * @param newhost The new real name. + * @return MOD_RES_DENY to deny the real name change, MOD_RES_ALLOW to allow */ - virtual int OnChangeLocalUserGECOS(User* user, const std::string &newhost); + virtual ModResult OnPreChangeRealName(LocalUser* user, const std::string &newhost); - /** Called whenever a topic is changed by a local user. + /** Called before a topic is changed. * Return 1 to deny the topic change, 0 to check details on the change, -1 to let it through with no checks + * As with other 'pre' events, you should only ever block a local event. * @param user The user changing the topic * @param chan The channels who's topic is being changed * @param topic The actual topic text - * @param 1 to block the topic change, 0 to allow + * @return 1 to block the topic change, 0 to allow */ - virtual int OnLocalTopicChange(User* user, Channel* chan, const std::string &topic); + virtual ModResult OnPreTopicChange(User* user, Channel* chan, const std::string &topic); - /** Called whenever a local topic has been changed. - * To block topic changes you must use OnLocalTopicChange instead. + /** Called whenever a topic has been changed. + * To block topic changes you must use OnPreTopicChange instead. * @param user The user changing the topic * @param chan The channels who's topic is being changed * @param topic The actual topic text */ - virtual void OnPostLocalTopicChange(User* user, Channel* chan, const std::string &topic); - - /** Called whenever an Event class is sent to all module by another module. - * Please see the documentation of Event::Send() for further information. The Event sent can - * always be assumed to be non-NULL, you should *always* check the value of Event::GetEventID() - * before doing anything to the event data, and you should *not* change the event data in any way! - * @param event The Event class being received - */ - virtual void OnEvent(Event* event); - - /** Called whenever a Request class is sent to your module by another module. - * Please see the documentation of Request::Send() for further information. The Request sent - * can always be assumed to be non-NULL, you should not change the request object or its data. - * Your method may return arbitary data in the char* result which the requesting module - * may be able to use for pre-determined purposes (e.g. the results of an SQL query, etc). - * @param request The Request class being received - */ - virtual const char* OnRequest(Request* request); + virtual void OnPostTopicChange(User* user, Channel* chan, const std::string &topic); /** Called whenever a password check is to be made. Replaces the old OldOperCompare API. * The password field (from the config file) is in 'password' and is to be compared against * 'input'. This method allows for encryption of passwords (oper, connect:allow, die/restart, etc). * You should return a nonzero value to override the normal comparison, or zero to pass it on. - * @param ex The object that's causing the authentication (User* for etc, Server* for ). + * @param ex The object that's causing the authentication (User* for \ \ etc, Server* for \). * @param password The password from the configuration file (the password="" value). * @param input The password entered by the user or whoever. * @param hashtype The hash value from the config * @return 0 to do nothing (pass on to next module/default), 1 == password is OK, -1 == password is not OK */ - virtual int OnPassCompare(Extensible* ex, const std::string &password, const std::string &input, const std::string& hashtype); - - /** Called whenever a user is given usermode +o, anywhere on the network. - * You cannot override this and prevent it from happening as it is already happened and - * such a task must be performed by another server. You can however bounce modes by sending - * servermodes out to reverse mode changes. - * @param user The user who is opering - */ - virtual void OnGlobalOper(User* user); + virtual ModResult OnPassCompare(Extensible* ex, const std::string &password, const std::string &input, const std::string& hashtype); /** Called after a user has fully connected and all modules have executed OnUserConnect * This event is informational only. You should not change any user information in this @@ -1284,116 +982,14 @@ class CoreExport Module : public Extensible */ virtual void OnPostConnect(User* user); - /** Called whenever a ban is added to a channel's list. - * Return a non-zero value to 'eat' the mode change and prevent the ban from being added. - * @param source The user adding the ban - * @param channel The channel the ban is being added to - * @param banmask The ban mask being added - * @return 1 to block the ban, 0 to continue as normal - */ - virtual int OnAddBan(User* source, Channel* channel,const std::string &banmask); - - /** Called whenever a ban is removed from a channel's list. - * Return a non-zero value to 'eat' the mode change and prevent the ban from being removed. - * @param source The user deleting the ban - * @param channel The channel the ban is being deleted from - * @param banmask The ban mask being deleted - * @return 1 to block the unban, 0 to continue as normal - */ - virtual int OnDelBan(User* source, Channel* channel,const std::string &banmask); - - virtual void OnHookUserIO(User* user); - - /** Called immediately after any connection is accepted. This is intended for raw socket - * processing (e.g. modules which wrap the tcp connection within another library) and provides - * no information relating to a user record as the connection has not been assigned yet. - * There are no return values from this call as all modules get an opportunity if required to - * process the connection. + /** Called when a port accepts a connection + * Return MOD_RES_ACCEPT if you have used the file descriptor. * @param fd The file descriptor returned from accept() + * @param sock The socket connection for the new user * @param client The client IP address and port * @param server The server IP address and port - * @param localport The local port number the user connected to - */ - virtual void OnRawSocketAccept(int fd, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server); - - /** Called immediately before any write() operation on a user's socket in the core. Because - * this event is a low level event no user information is associated with it. It is intended - * for use by modules which may wrap connections within another API such as SSL for example. - * return a non-zero result if you have handled the write operation, in which case the core - * will not call write(). - * @param fd The file descriptor of the socket - * @param buffer A char* buffer being written - * @param Number of characters to write - * @return Number of characters actually written or 0 if you didn't handle the operation - */ - virtual int OnRawSocketWrite(int fd, const char* buffer, int count); - - /** Called immediately before any socket is closed. When this event is called, shutdown() - * has not yet been called on the socket. - * @param fd The file descriptor of the socket prior to close() - */ - virtual void OnRawSocketClose(int fd); - - /** Called immediately upon connection of an outbound BufferedSocket which has been hooked - * by a module. - * @param fd The file descriptor of the socket immediately after connect() - */ - virtual void OnRawSocketConnect(int fd); - - /** Called immediately before any read() operation on a client socket in the core. - * This occurs AFTER the select() or poll() so there is always data waiting to be read - * when this event occurs. - * Your event should return 1 if it has handled the reading itself, which prevents the core - * just using read(). You should place any data read into buffer, up to but NOT GREATER THAN - * the value of count. The value of readresult must be identical to an actual result that might - * be returned from the read() system call, for example, number of bytes read upon success, - * 0 upon EOF or closed socket, and -1 for error. If your function returns a nonzero value, - * you MUST set readresult. - * @param fd The file descriptor of the socket - * @param buffer A char* buffer being read to - * @param count The size of the buffer - * @param readresult The amount of characters read, or 0 - * @return nonzero if the event was handled, in which case readresult must be valid on exit - */ - virtual int OnRawSocketRead(int fd, char* buffer, unsigned int count, int &readresult); - - /** Called whenever a user sets away or returns from being away. - * The away message is available as a parameter, but should not be modified. - * At this stage, it has already been copied into the user record. - * If awaymsg is empty, the user is returning from away. - * @param user The user setting away - * @param awaymsg The away message of the user, or empty if returning from away - * @return nonzero if the away message should be blocked - should ONLY be nonzero for LOCAL users (IS_LOCAL) (no output is returned by core) - */ - virtual int OnSetAway(User* user, const std::string &awaymsg); - - /** Called whenever a NAMES list is requested. - * You can produce the nameslist yourself, overriding the current list, - * and if you do you must return 1. If you do not handle the names list, - * return 0. - * @param The user requesting the NAMES list - * @param Ptr The channel the NAMES list is requested for - * @param userlist The user list for the channel (you may change this pointer. - * If you want to change the values, take a copy first, and change the copy, then - * point the pointer at your copy) - * @return 1 to prevent the user list being sent to the client, 0 to allow it. - * Returning -1 allows the names list, but bypasses any checks which check for - * channel membership before sending the names list. - */ - virtual int OnUserList(User* user, Channel* Ptr, CUList* &userlist); - - /** Called whenever a line of WHOIS output is sent to a user. - * You may change the numeric and the text of the output by changing - * the values numeric and text, but you cannot change the user the - * numeric is sent to. You may however change the user's User values. - * @param user The user the numeric is being sent to - * @param dest The user being WHOISed - * @param numeric The numeric of the line being sent - * @param text The text of the numeric, including any parameters - * @return nonzero to drop the line completely so that the user does not - * receive it, or zero to allow the line to be sent. - */ - virtual int OnWhoisLine(User* user, User* dest, int &numeric, std::string &text); + */ + virtual ModResult OnAcceptConnection(int fd, ListenSocket* sock, irc::sockets::sockaddrs* client, irc::sockets::sockaddrs* server); /** Called at intervals for modules to garbage-collect any hashes etc. * Certain data types such as hash_map 'leak' buckets, which must be @@ -1402,272 +998,123 @@ class CoreExport Module : public Extensible */ virtual void OnGarbageCollect(); - /** Called whenever a user's write buffer has been completely sent. - * This is called when the user's write buffer is completely empty, and - * there are no more pending bytes to be written and no pending write events - * in the socket engine's queue. This may be used to refill the buffer with - * data which is being spooled in a controlled manner, e.g. LIST lines. - * @param user The user who's buffer is now empty. + /** Called when a user's connect class is being matched + * @return MOD_RES_ALLOW to force the class to match, MOD_RES_DENY to forbid it, or + * MOD_RES_PASSTHRU to allow normal matching (by host/port). */ - virtual void OnBufferFlushed(User* user); + virtual ModResult OnSetConnectClass(LocalUser* user, ConnectClass* myclass); - /** Add test suite hooks here. These are used for testing functionality of a module - * via the --testsuite debugging parameter. - */ - virtual void OnRunTestSuite(); + virtual ModResult OnNumeric(User* user, const Numeric::Numeric& numeric); - /** Called for every item in a NAMES list, so that modules may reformat portions of it as they see fit. - * For example NAMESX, channel mode +u and +I, and UHNAMES. If the nick is set to an empty string by any - * module, then this will cause the nickname not to be displayed at all. + /** Called whenever a local user's IP is set for the first time, or when a local user's IP changes due to + * a module like m_cgiirc changing it. + * @param user The user whose IP is being set */ - virtual void OnNamesListItem(User* issuer, User* user, Channel* channel, std::string &prefixes, std::string &nick); - - virtual int OnNumeric(User* user, unsigned int numeric, const std::string &text); - - /** Called for every time the user's host or ident changes, to indicate wether or not the 'Changing host' - * message should be sent, if enabled. Certain modules such as auditorium may opt to hide this message - * even if it is enabled. - */ - virtual bool OnHostCycle(User* user); -}; + virtual void OnSetUserIP(LocalUser* user); - -#define CONF_NO_ERROR 0x000000 -#define CONF_NOT_A_NUMBER 0x000010 -#define CONF_INT_NEGATIVE 0x000080 -#define CONF_VALUE_NOT_FOUND 0x000100 -#define CONF_FILE_NOT_FOUND 0x000200 - - -/** Allows reading of values from configuration files - * This class allows a module to read from either the main configuration file (inspircd.conf) or from - * a module-specified configuration file. It may either be instantiated with one parameter or none. - * Constructing the class using one parameter allows you to specify a path to your own configuration - * file, otherwise, inspircd.conf is read. - */ -class CoreExport ConfigReader : public classbase -{ - protected: - InspIRCd* ServerInstance; - /** Error code + /** Called whenever a ServiceProvider is registered. + * @param service ServiceProvider being registered. */ - long error; + virtual void OnServiceAdd(ServiceProvider& service); - public: - /** Default constructor. - * This constructor initialises the ConfigReader class to read the inspircd.conf file - * as specified when running ./configure. + /** Called whenever a ServiceProvider is unregistered. + * @param service ServiceProvider being unregistered. */ - ConfigReader(InspIRCd* Instance); - /** Default destructor. - * This method destroys the ConfigReader class. - */ - ~ConfigReader(); - - /** Retrieves a value from the config file. - * This method retrieves a value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. - */ - std::string ReadValue(const std::string &tag, const std::string &name, int index, bool allow_linefeeds = false); - /** Retrieves a value from the config file. - * This method retrieves a value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. If the - * tag is not found the default value is returned instead. - */ - std::string ReadValue(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool allow_linefeeds = false); - - /** Retrieves a boolean value from the config file. - * This method retrieves a boolean value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes" - * and "true" in the config file count as true to ReadFlag, and any other value counts as false. - */ - bool ReadFlag(const std::string &tag, const std::string &name, int index); - /** Retrieves a boolean value from the config file. - * This method retrieves a boolean value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. The values "1", "yes" - * and "true" in the config file count as true to ReadFlag, and any other value counts as false. - * If the tag is not found, the default value is used instead. - */ - bool ReadFlag(const std::string &tag, const std::string &name, const std::string &default_value, int index); - - /** Retrieves an integer value from the config file. - * This method retrieves an integer value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. Any invalid integer - * values in the tag will cause the objects error value to be set, and any call to GetError() will - * return CONF_INVALID_NUMBER to be returned. need_positive is set if the number must be non-negative. - * If a negative number is placed into a tag which is specified positive, 0 will be returned and GetError() - * will return CONF_INT_NEGATIVE. Note that need_positive is not suitable to get an unsigned int - you - * should cast the result to achieve that effect. - */ - int ReadInteger(const std::string &tag, const std::string &name, int index, bool need_positive); - /** Retrieves an integer value from the config file. - * This method retrieves an integer value from the config file. Where multiple copies of the tag - * exist in the config file, index indicates which of the values to retrieve. Any invalid integer - * values in the tag will cause the objects error value to be set, and any call to GetError() will - * return CONF_INVALID_NUMBER to be returned. needs_unsigned is set if the number must be unsigned. - * If a signed number is placed into a tag which is specified unsigned, 0 will be returned and GetError() - * will return CONF_NOT_UNSIGNED. If the tag is not found, the default value is used instead. - */ - int ReadInteger(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool need_positive); - - /** Returns the last error to occur. - * Valid errors can be found by looking in modules.h. Any nonzero value indicates an error condition. - * A call to GetError() resets the error flag back to 0. - */ - long GetError(); - /** Counts the number of times a given tag appears in the config file. - * This method counts the number of times a tag appears in a config file, for use where - * there are several tags of the same kind, e.g. with opers and connect types. It can be - * used with the index value of ConfigReader::ReadValue to loop through all copies of a - * multiple instance tag. - */ - int Enumerate(const std::string &tag); - - /** Returns the number of items within a tag. - * For example if the tag was <test tag="blah" data="foo"> then this - * function would return 2. Spaces and newlines both qualify as valid seperators - * between values. - */ - int EnumerateValues(const std::string &tag, int index); -}; - + virtual void OnServiceDel(ServiceProvider& service); - -/** Caches a text file into memory and can be used to retrieve lines from it. - * This class contains methods for read-only manipulation of a text file in memory. - * Either use the constructor type with one parameter to load a file into memory - * at construction, or use the LoadFile method to load a file. - */ -class CoreExport FileReader : public classbase -{ - InspIRCd* ServerInstance; - /** The file contents + /** Called whenever a message is about to be written to a user. + * @param user The user who is having a message sent to them. + * @param msg The message which is being written to the user. + * @return MOD_RES_ALLOW to explicitly allow the message to be sent, MOD_RES_DENY to explicitly + * deny the message from being sent, or MOD_RES_PASSTHRU to let another module handle the event. */ - file_cache fc; + virtual ModResult OnUserWrite(LocalUser* user, ClientProtocol::Message& msg); - /** Content size in bytes + /** Called when a user connection has been unexpectedly disconnected. + * @param user The user who has been unexpectedly disconnected. + * @param error The type of error which caused this connection failure. + * @return MOD_RES_ALLOW to explicitly retain the user as a zombie, MOD_RES_DENY to explicitly + * disconnect the user, or MOD_RES_PASSTHRU to let another module handle the event. */ - unsigned long contentsize; + virtual ModResult OnConnectionFail(LocalUser* user, BufferedSocketError error); - /** Calculate content size in bytes + /** Called before a server shuts down. + * @param reason The reason the server is shutting down. */ - void CalcSize(); - - public: - /** Default constructor. - * This method does not load any file into memory, you must use the LoadFile method - * after constructing the class this way. - */ - FileReader(InspIRCd* Instance); - - /** Secondary constructor. - * This method initialises the class with a file loaded into it ready for GetLine and - * and other methods to be called. If the file could not be loaded, FileReader::FileSize - * returns 0. - */ - FileReader(InspIRCd* Instance, const std::string &filename); - - /** Default destructor. - * This deletes the memory allocated to the file. - */ - ~FileReader(); - - /** Used to load a file. - * This method loads a file into the class ready for GetLine and - * and other methods to be called. If the file could not be loaded, FileReader::FileSize - * returns 0. - */ - void LoadFile(const std::string &filename); - - /** Returns the whole content of the file as std::string - */ - std::string Contents(); - - /** Returns the entire size of the file as std::string - */ - unsigned long ContentSize(); - - /** Returns true if the file exists - * This function will return false if the file could not be opened. - */ - bool Exists(); - - /** Retrieve one line from the file. - * This method retrieves one line from the text file. If an empty non-NULL string is returned, - * the index was out of bounds, or the line had no data on it. - */ - std::string GetLine(int x); - - /** Returns the size of the file in lines. - * This method returns the number of lines in the read file. If it is 0, no lines have been - * read into memory, either because the file is empty or it does not exist, or cannot be - * opened due to permission problems. - */ - int FileSize(); + virtual void OnShutdown(const std::string& reason); }; -/** A DLLFactory (designed to load shared objects) containing a - * handle to a module's init_module() function. Unfortunately, - * due to the design of shared object systems we must keep this - * hanging around, as if we remove this handle, we remove the - * shared object file from memory (!) - */ -typedef DLLFactory ircd_module; - -/** A list of modules - */ -typedef std::vector IntModuleList; - -/** An event handler iterator - */ -typedef IntModuleList::iterator EventHandlerIter; - /** ModuleManager takes care of all things module-related * in the core. */ -class CoreExport ModuleManager : public classbase +class CoreExport ModuleManager : public fakederef { + public: + typedef std::multimap DataProviderMap; + typedef std::vector ServiceList; + private: /** Holds a string describing the last module error to occur */ std::string LastModuleError; - /** The feature names published by various modules - */ - featurelist Features; - - /** The interface names published by various modules - */ - interfacelist Interfaces; - - /** Total number of modules loaded into the ircd - */ - int ModCount; - - /** Our pointer to the main insp instance - */ - InspIRCd* Instance; - /** List of loaded modules and shared object/dll handles * keyed by module name */ - std::map > Modules; + std::map Modules; enum { PRIO_STATE_FIRST, PRIO_STATE_AGAIN, PRIO_STATE_LAST } prioritizationState; + + /** Loads all core modules (core_*) + */ + void LoadCoreModules(std::map& servicemap); + + /** Calls the Prioritize() method in all loaded modules + * @return True if all went well, false if a dependency loop was detected + */ + bool PrioritizeHooks(); + + /** Unregister all user modes or all channel modes owned by a module + * @param mod Module whose modes to unregister + * @param modetype MODETYPE_USER to unregister user modes, MODETYPE_CHANNEL to unregister channel modes + */ + void UnregisterModes(Module* mod, ModeType modetype); + public: + typedef std::map ModuleMap; /** Event handler hooks. * This needs to be public to be used by FOREACH_MOD and friends. */ - IntModuleList EventHandlers[I_END]; + Module::List EventHandlers[I_END]; + + /** List of data services keyed by name */ + DataProviderMap DataProviders; + + /** A list of ServiceProviders waiting to be registered. + * Non-NULL when constructing a Module, NULL otherwise. + * When non-NULL ServiceProviders add themselves to this list on creation and the core + * automatically registers them (that is, call AddService()) after the Module is constructed, + * and before Module::init() is called. + * If a service is created after the construction of the Module (for example in init()) it + * has to be registered manually. + */ + ServiceList* NewServices; + + /** Expands the name of a module by prepending "m_" and appending ".so". + * No-op if the name already has the ".so" extension. + * @param modname Module name to expand + * @return Module name starting with "m_" and ending with ".so" + */ + static std::string ExpandModName(const std::string& modname); /** Simple, bog-standard, boring constructor. */ - ModuleManager(InspIRCd* Ins); + ModuleManager(); /** Destructor */ @@ -1685,16 +1132,11 @@ class CoreExport ModuleManager : public classbase * PRIO_FIRST to set the event to be first called, PRIO_LAST to * set it to be the last called, or PRIO_BEFORE and PRIORITY_AFTER * to set it to be before or after one or more other modules. - * @param modules If PRIO_BEFORE or PRIORITY_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 PRIORITY_AFTER. - * @param sz The number of modules being passed for PRIO_BEFORE and PRIORITY_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. + * @param which If PRIO_BEFORE or PRIORITY_AFTER is set in parameter 's', + * then this contains a the module that your module must be placed before + * or after. */ - bool SetPriority(Module* mod, Implementation i, Priority s, Module** modules = NULL, size_t sz = 1); + bool SetPriority(Module* mod, Implementation i, Priority s, Module* which = NULL); /** Change the priority of all events in a module. * @param mod The module to set the priority of @@ -1704,29 +1146,30 @@ class CoreExport ModuleManager : public classbase * SetPriority method for this, where you may specify other modules to * be prioritized against. */ - bool SetPriority(Module* mod, Priority s); + void 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. + * You may later detach the event with ModuleManager::Detach(). + * If your module is unloaded, all events are automatically detached. * @param i Event type to attach * @param mod Module to attach event to * @return True if the event was attached */ bool Attach(Implementation i, Module* mod); - /** Detatch an event from a module. + /** Detach 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. + * automatically detach 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 + * @return True if the event was detached */ bool Detach(Implementation i, Module* mod); /** Attach an array of events to a module * @param i Event types (array) to attach * @param mod Module to attach events to + * @param sz The size of the implementation array */ void Attach(Implementation* i, Module* mod, size_t sz); @@ -1735,6 +1178,11 @@ class CoreExport ModuleManager : public classbase */ void DetachAll(Module* mod); + /** Attach all events to a module (used on module load) + * @param mod Module to attach to all events + */ + void AttachAll(Module* mod); + /** Returns text describing the last module error * @return The last error message to occur */ @@ -1742,27 +1190,30 @@ class CoreExport ModuleManager : public classbase /** Load a given module file * @param filename The file to load + * @param defer Defer module init (loading many modules) * @return True if the module was found and loaded */ - bool Load(const char* filename); + bool Load(const std::string& filename, bool defer = false); - /** Unload a given module file - * @param filename The file to unload - * @return True if the module was unloaded + /** Unload a given module file. Note that the module will not be + * completely gone until the cull list has finished processing. + * + * @return true on success; if false, LastError will give a reason */ - bool Unload(const char* filename); + bool Unload(Module* module); /** Called by the InspIRCd constructor to load all modules from the config file. */ void LoadAll(); + void UnloadAll(); + void DoSafeUnload(Module*); - /** Get the total number of currently loaded modules - * @return The number of loaded modules + /** Check if a module can be unloaded and if yes, prepare it for unload + * @param mod Module to be unloaded + * @return True if the module is unloadable, false otherwise. + * If true the module must be unloaded in the current main loop iteration. */ - int GetCount() - { - return this->ModCount; - } + bool CanUnload(Module* mod); /** Find a module by name, and return a Module* to it. * This is preferred over iterating the module lists yourself. @@ -1771,155 +1222,46 @@ class CoreExport ModuleManager : public classbase */ Module* Find(const std::string &name); - /** Publish a 'feature'. - * There are two ways for a module to find another module it depends on. - * Either by name, using InspIRCd::FindModule, or by feature, using this - * function. A feature is an arbitary string which identifies something this - * module can do. For example, if your module provides SSL support, but other - * modules provide SSL support too, all the modules supporting SSL should - * publish an identical 'SSL' feature. This way, any module requiring use - * of SSL functions can just look up the 'SSL' feature using FindFeature, - * then use the module pointer they are given. - * @param FeatureName The case sensitive feature name to make available - * @param Mod a pointer to your module class - * @returns True on success, false if the feature is already published by - * another module. - */ - bool PublishFeature(const std::string &FeatureName, Module* Mod); - - /** Publish a module to an 'interface'. - * Modules which implement the same interface (the same way of communicating - * with other modules) can publish themselves to an interface, using this - * method. When they do so, they become part of a list of related or - * compatible modules, and a third module may then query for that list - * and know that all modules within that list offer the same API. - * A prime example of this is the hashing modules, which all accept the - * same types of Request class. Consider this to be similar to PublishFeature, - * except for that multiple modules may publish the same 'feature'. - * @param InterfaceName The case sensitive interface name to make available - * @param Mod a pointer to your module class - * @returns True on success, false on failure (there are currently no failure - * cases) - */ - bool PublishInterface(const std::string &InterfaceName, Module* Mod); - - /** Return a pair saying how many other modules are currently using the - * interfaces provided by module m. - * @param m The module to count usage for - * @return A pair, where the first value is the number of uses of the interface, - * and the second value is the interface name being used. - */ - std::pair GetInterfaceInstanceCount(Module* m); - - /** Mark your module as using an interface. - * If you mark your module as using an interface, then that interface - * module may not unload until your module has unloaded first. - * This can be used to prevent crashes by ensuring code you depend on - * is always in memory while your module is active. - * @param InterfaceName The interface to use - */ - void UseInterface(const std::string &InterfaceName); - - /** Mark your module as finished with an interface. - * If you used UseInterface() above, you should use this method when - * your module is finished with the interface (usually in its destructor) - * to allow the modules which implement the given interface to be unloaded. - * @param InterfaceName The interface you are finished with using. - */ - void DoneWithInterface(const std::string &InterfaceName); - - /** Unpublish a 'feature'. - * When your module exits, it must call this method for every feature it - * is providing so that the feature table is cleaned up. - * @param FeatureName the feature to remove - */ - bool UnpublishFeature(const std::string &FeatureName); - - /** Unpublish your module from an interface - * When your module exits, it must call this method for every interface - * it is part of so that the interfaces table is cleaned up. Only when - * the last item is deleted from an interface does the interface get - * removed. - * @param InterfaceName the interface to be removed from - * @param Mod The module to remove from the interface list - */ - bool UnpublishInterface(const std::string &InterfaceName, Module* Mod); - - /** Find a 'feature'. - * There are two ways for a module to find another module it depends on. - * Either by name, using InspIRCd::FindModule, or by feature, using the - * InspIRCd::PublishFeature method. A feature is an arbitary string which - * identifies something this module can do. For example, if your module - * provides SSL support, but other modules provide SSL support too, all - * the modules supporting SSL should publish an identical 'SSL' feature. - * To find a module capable of providing the feature you want, simply - * call this method with the feature name you are looking for. - * @param FeatureName The feature name you wish to obtain the module for - * @returns A pointer to a valid module class on success, NULL on failure. - */ - Module* FindFeature(const std::string &FeatureName); - - /** Find an 'interface'. - * An interface is a list of modules which all implement the same API. - * @param InterfaceName The Interface you wish to obtain the module - * list of. - * @return A pointer to a deque of Module*, or NULL if the interface - * does not exist. - */ - modulelist* FindInterface(const std::string &InterfaceName); - - /** Determine if a module has published the named interface. - * This could be used in, for example, OnLoadModule to pick up other modules that can be used. - * @param mod The module to check. - * @param InterfaceName the interface you want to check for - * @return True if the module provides the interface, false otherwise. - */ - bool ModuleHasInterface(Module* mod, const std::string& InterfaceName); - - /** Given a pointer to a Module, return its filename - * @param m The module pointer to identify - * @return The module name or an empty string - */ - const std::string& GetModuleName(Module* m); - - /** Return a list of all modules matching the given filter - * @param filter This int is a bitmask of flags set in Module::Flags, - * such as VF_VENDOR or VF_STATIC. If you wish to receive a list of - * all modules with no filtering, set this to 0. - * @return The list of module names - */ - const std::vector GetAllModuleNames(int filter); -}; + /** Register a service provided by a module */ + void AddService(ServiceProvider&); -/** This definition is used as shorthand for the various classes - * and functions needed to make a module loadable by the OS. - * It defines the class factory and external init_module function. - */ -#ifdef WINDOWS + /** Unregister a service provided by a module */ + void DelService(ServiceProvider&); -#define MODULE_INIT(y) \ - extern "C" DllExport Module * init_module(InspIRCd* Me) \ - { \ - return new y(Me); \ - } \ - BOOLEAN WINAPI DllMain(HINSTANCE hDllHandle, DWORD nReason, LPVOID Reserved) \ - { \ - switch ( nReason ) \ - { \ - case DLL_PROCESS_ATTACH: \ - case DLL_PROCESS_DETACH: \ - break; \ - } \ - return TRUE; \ + /** Register all services in a given ServiceList + * @param list The list containing the services to register + */ + void AddServices(const ServiceList& list); + + inline void AddServices(ServiceProvider** list, int count) + { + for(int i=0; i < count; i++) + AddService(*list[i]); } -#else + /** Find a service by name. + * If multiple modules provide a given service, the first one loaded will be chosen. + */ + ServiceProvider* FindService(ServiceType Type, const std::string& name); -#define MODULE_INIT(y) \ - extern "C" DllExport Module * init_module(InspIRCd* Me) \ - { \ - return new y(Me); \ + template inline T* FindDataService(const std::string& name) + { + return static_cast(FindService(SERVICE_DATA, name)); } -#endif -#endif + /** Get a map of all loaded modules keyed by their name + * @return A ModuleMap containing all loaded modules + */ + const ModuleMap& GetModules() const { return Modules; } + + /** Make a service referenceable by dynamic_references + * @param name Name that will be used by dynamic_references to find the object + * @param service Service to make referenceable by dynamic_references + */ + void AddReferent(const std::string& name, ServiceProvider* service); + + /** Make a service no longer referenceable by dynamic_references + * @param service Service to make no longer referenceable by dynamic_references + */ + void DelReferent(ServiceProvider* service); +};