X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fmodules.cpp;h=23aceb3e11e442c524e5eb8f15ce44e2ef619eba;hb=e244cb2c63b1ac1d85bdbb4691f7b1bd940ae804;hp=656e7ce900b808b6be37c91039b507845c7e3c79;hpb=2aae57ca07b3de40feb72a21b2f2dea521665d80;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules.cpp b/src/modules.cpp index 656e7ce90..23aceb3e1 100644 --- a/src/modules.cpp +++ b/src/modules.cpp @@ -1,64 +1,68 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2010 InspIRCd Development Team - * See: http://wiki.inspircd.org/Credits + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2007, 2009 Dennis Friis + * Copyright (C) 2003-2008 Craig Edwards + * Copyright (C) 2008 Thomas Stagner + * Copyright (C) 2006-2007 Robin Burchell + * Copyright (C) 2006-2007 Oliver Lupton + * Copyright (C) 2007 Pippijn van Steenhoven + * Copyright (C) 2003 randomdan * - * 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 . */ + +#include #include "inspircd.h" #include "xline.h" #include "socket.h" #include "socketengine.h" #include "command_parse.h" -#include "dns.h" #include "exitcodes.h" -#ifndef WIN32 +#ifndef _WIN32 #include #endif +static std::vector* dynrefs = NULL; +static bool dynref_init_complete = false; -// Version is a simple class for holding a modules version number -template<> -VersionBase::VersionBase(const std::string &desc, int flags) -: description(desc), Flags(flags) -{ -} - -template<> -VersionBase::VersionBase(const std::string &desc, int flags, const std::string& linkdata) -: description(desc), Flags(flags), link_data(linkdata) -{ -} - -template<> -bool VersionBase::CanLink(const std::string& other_data) +void dynamic_reference_base::reset_all() { - return link_data == other_data; + dynref_init_complete = true; + if (!dynrefs) + return; + for(unsigned int i = 0; i < dynrefs->size(); i++) + (*dynrefs)[i]->resolve(); } -Request::Request(Module* src, Module* dst, const char* idstr) -: id(idstr), source(src), dest(dst) +// Version is a simple class for holding a modules version number +Version::Version(const std::string &desc, int flags) : description(desc), Flags(flags) { } -void Request::Send() +Version::Version(const std::string &desc, int flags, const std::string& linkdata) +: description(desc), Flags(flags), link_data(linkdata) { - if (dest) - dest->OnRequest(*this); } Event::Event(Module* src, const std::string &eventid) : source(src), id(eventid) { } void Event::Send() { - FOREACH_MOD(I_OnEvent,OnEvent(*this)); + FOREACH_MOD(OnEvent, (*this)); } // These declarations define the behavours of the base class Module (which does nothing at all) @@ -72,99 +76,108 @@ Module::~Module() { } -ModResult Module::OnSendSnotice(char &snomask, std::string &type, const std::string &message) { return MOD_RES_PASSTHRU; } -void Module::OnUserConnect(LocalUser*) { } -void Module::OnUserQuit(User*, const std::string&, const std::string&) { } -void Module::OnUserDisconnect(LocalUser*) { } -void Module::OnUserJoin(Membership*, bool, bool, CUList&) { } -void Module::OnPostJoin(Membership*) { } -void Module::OnUserPart(Membership*, std::string&, CUList&) { } -void Module::OnPreRehash(User*, const std::string&) { } -void Module::OnModuleRehash(User*, const std::string&) { } -void Module::OnRehash(User*) { } -ModResult Module::OnUserPreJoin(User*, Channel*, const char*, std::string&, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnMode(User*, void*, int, const std::vector&, const std::vector&) { } -void Module::OnOper(User*, const std::string&) { } -void Module::OnPostOper(User*, const std::string&, const std::string &) { } -void Module::OnInfo(User*) { } -void Module::OnWhois(User*, User*) { } -ModResult Module::OnUserPreInvite(User*, User*, Channel*, time_t) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreMessage(User*, void*, int, std::string&, char, CUList&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreNotice(User*, void*, int, std::string&, char, CUList&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreNick(User*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnUserPostNick(User*, const std::string&) { } -ModResult Module::OnPreMode(User*, User*, Channel*, const std::vector&) { return MOD_RES_PASSTHRU; } -void Module::On005Numeric(std::string&) { } -ModResult Module::OnKill(User*, User*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnLoadModule(Module*) { } -void Module::OnUnloadModule(Module*) { } -void Module::OnBackgroundTimer(time_t) { } -ModResult Module::OnPreCommand(std::string&, std::vector&, LocalUser*, bool, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnPostCommand(const std::string&, const std::vector&, LocalUser*, CmdResult, const std::string&) { } -ModResult Module::OnCheckReady(LocalUser*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserRegister(LocalUser*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserPreKick(User*, Membership*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnUserKick(User*, Membership*, const std::string&, CUList&) { } -ModResult Module::OnRawMode(User*, Channel*, const char, const std::string &, bool, int) { return MOD_RES_PASSTHRU; } -ModResult Module::OnCheckInvite(User*, Channel*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnCheckKey(User*, Channel*, const std::string&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnCheckLimit(User*, Channel*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnCheckChannelBan(User*, Channel*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnCheckBan(User*, Channel*, const std::string&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnExtBanCheck(User*, Channel*, char) { return MOD_RES_PASSTHRU; } -ModResult Module::OnStats(char, User*, string_list&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnChangeLocalUserHost(LocalUser*, const std::string&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnChangeLocalUserGECOS(LocalUser*, const std::string&) { return MOD_RES_PASSTHRU; } -ModResult Module::OnPreTopicChange(User*, Channel*, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnEvent(Event&) { } -void Module::OnRequest(Request&) { } -ModResult Module::OnPassCompare(Extensible* ex, const std::string &password, const std::string &input, const std::string& hashtype) { return MOD_RES_PASSTHRU; } -void Module::OnGlobalOper(User*) { } -void Module::OnPostConnect(User*) { } -ModResult Module::OnAddBan(User*, Channel*, const std::string &) { return MOD_RES_PASSTHRU; } -ModResult Module::OnDelBan(User*, Channel*, const std::string &) { return MOD_RES_PASSTHRU; } -void Module::OnStreamSocketAccept(StreamSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { } -int Module::OnStreamSocketWrite(StreamSocket*, std::string&) { return -1; } -void Module::OnStreamSocketClose(StreamSocket*) { } -void Module::OnStreamSocketConnect(StreamSocket*) { } -int Module::OnStreamSocketRead(StreamSocket*, std::string&) { return -1; } -void Module::OnUserMessage(User*, void*, int, const std::string&, char, const CUList&) { } -void Module::OnUserNotice(User*, void*, int, const std::string&, char, const CUList&) { } -void Module::OnRemoteKill(User*, User*, const std::string&, const std::string&) { } -void Module::OnUserInvite(User*, User*, Channel*, time_t) { } -void Module::OnPostTopicChange(User*, Channel*, const std::string&) { } -void Module::OnGetServerDescription(const std::string&, std::string&) { } -void Module::OnSyncUser(User*, Module*, void*) { } -void Module::OnSyncChannel(Channel*, Module*, void*) { } -void Module::OnSyncNetwork(Module*, void*) { } -void Module::ProtoSendMode(void*, TargetTypeFlags, void*, const std::vector&, const std::vector&) { } -void Module::OnDecodeMetaData(Extensible*, const std::string&, const std::string&) { } -void Module::ProtoSendMetaData(void*, Extensible*, const std::string&, const std::string&) { } -void Module::OnWallops(User*, const std::string&) { } -void Module::OnChangeHost(User*, const std::string&) { } -void Module::OnChangeName(User*, const std::string&) { } -void Module::OnChangeIdent(User*, const std::string&) { } -void Module::OnAddLine(User*, XLine*) { } -void Module::OnDelLine(User*, XLine*) { } -void Module::OnExpireLine(XLine*) { } +void Module::DetachEvent(Implementation i) +{ + ServerInstance->Modules->Detach(i, this); +} + +void Module::ReadConfig(ConfigStatus& status) { } +ModResult Module::OnSendSnotice(char &snomask, std::string &type, const std::string &message) { DetachEvent(I_OnSendSnotice); return MOD_RES_PASSTHRU; } +void Module::OnUserConnect(LocalUser*) { DetachEvent(I_OnUserConnect); } +void Module::OnUserQuit(User*, const std::string&, const std::string&) { DetachEvent(I_OnUserQuit); } +void Module::OnUserDisconnect(LocalUser*) { DetachEvent(I_OnUserDisconnect); } +void Module::OnUserJoin(Membership*, bool, bool, CUList&) { DetachEvent(I_OnUserJoin); } +void Module::OnPostJoin(Membership*) { DetachEvent(I_OnPostJoin); } +void Module::OnUserPart(Membership*, std::string&, CUList&) { DetachEvent(I_OnUserPart); } +void Module::OnPreRehash(User*, const std::string&) { DetachEvent(I_OnPreRehash); } +void Module::OnModuleRehash(User*, const std::string&) { DetachEvent(I_OnModuleRehash); } +ModResult Module::OnUserPreJoin(LocalUser*, Channel*, const std::string&, std::string&, const std::string&) { DetachEvent(I_OnUserPreJoin); return MOD_RES_PASSTHRU; } +void Module::OnMode(User*, User*, Channel*, const std::vector&, const std::vector&) { DetachEvent(I_OnMode); } +void Module::OnOper(User*, const std::string&) { DetachEvent(I_OnOper); } +void Module::OnPostOper(User*, const std::string&, const std::string &) { DetachEvent(I_OnPostOper); } +void Module::OnInfo(User*) { DetachEvent(I_OnInfo); } +void Module::OnWhois(User*, User*) { DetachEvent(I_OnWhois); } +ModResult Module::OnUserPreInvite(User*, User*, Channel*, time_t) { DetachEvent(I_OnUserPreInvite); return MOD_RES_PASSTHRU; } +ModResult Module::OnUserPreMessage(User*, void*, int, std::string&, char, CUList&, MessageType) { DetachEvent(I_OnUserPreMessage); return MOD_RES_PASSTHRU; } +ModResult Module::OnUserPreNick(User*, const std::string&) { DetachEvent(I_OnUserPreNick); return MOD_RES_PASSTHRU; } +void Module::OnUserPostNick(User*, const std::string&) { DetachEvent(I_OnUserPostNick); } +ModResult Module::OnPreMode(User*, User*, Channel*, const std::vector&) { DetachEvent(I_OnPreMode); return MOD_RES_PASSTHRU; } +void Module::On005Numeric(std::map&) { DetachEvent(I_On005Numeric); } +ModResult Module::OnKill(User*, User*, const std::string&) { DetachEvent(I_OnKill); return MOD_RES_PASSTHRU; } +void Module::OnLoadModule(Module*) { DetachEvent(I_OnLoadModule); } +void Module::OnUnloadModule(Module*) { DetachEvent(I_OnUnloadModule); } +void Module::OnBackgroundTimer(time_t) { DetachEvent(I_OnBackgroundTimer); } +ModResult Module::OnPreCommand(std::string&, std::vector&, LocalUser*, bool, const std::string&) { DetachEvent(I_OnPreCommand); return MOD_RES_PASSTHRU; } +void Module::OnPostCommand(Command*, const std::vector&, LocalUser*, CmdResult, const std::string&) { DetachEvent(I_OnPostCommand); } +void Module::OnUserInit(LocalUser*) { DetachEvent(I_OnUserInit); } +ModResult Module::OnCheckReady(LocalUser*) { DetachEvent(I_OnCheckReady); return MOD_RES_PASSTHRU; } +ModResult Module::OnUserRegister(LocalUser*) { DetachEvent(I_OnUserRegister); return MOD_RES_PASSTHRU; } +ModResult Module::OnUserPreKick(User*, Membership*, const std::string&) { DetachEvent(I_OnUserPreKick); return MOD_RES_PASSTHRU; } +void Module::OnUserKick(User*, Membership*, const std::string&, CUList&) { DetachEvent(I_OnUserKick); } +ModResult Module::OnRawMode(User*, Channel*, const char, const std::string &, bool, int) { DetachEvent(I_OnRawMode); return MOD_RES_PASSTHRU; } +ModResult Module::OnCheckInvite(User*, Channel*) { DetachEvent(I_OnCheckInvite); return MOD_RES_PASSTHRU; } +ModResult Module::OnCheckKey(User*, Channel*, const std::string&) { DetachEvent(I_OnCheckKey); return MOD_RES_PASSTHRU; } +ModResult Module::OnCheckLimit(User*, Channel*) { DetachEvent(I_OnCheckLimit); return MOD_RES_PASSTHRU; } +ModResult Module::OnCheckChannelBan(User*, Channel*) { DetachEvent(I_OnCheckChannelBan); return MOD_RES_PASSTHRU; } +ModResult Module::OnCheckBan(User*, Channel*, const std::string&) { DetachEvent(I_OnCheckBan); return MOD_RES_PASSTHRU; } +ModResult Module::OnExtBanCheck(User*, Channel*, char) { DetachEvent(I_OnExtBanCheck); return MOD_RES_PASSTHRU; } +ModResult Module::OnStats(char, User*, string_list&) { DetachEvent(I_OnStats); return MOD_RES_PASSTHRU; } +ModResult Module::OnChangeLocalUserHost(LocalUser*, const std::string&) { DetachEvent(I_OnChangeLocalUserHost); return MOD_RES_PASSTHRU; } +ModResult Module::OnChangeLocalUserGECOS(LocalUser*, const std::string&) { DetachEvent(I_OnChangeLocalUserGECOS); return MOD_RES_PASSTHRU; } +ModResult Module::OnPreTopicChange(User*, Channel*, const std::string&) { DetachEvent(I_OnPreTopicChange); return MOD_RES_PASSTHRU; } +void Module::OnEvent(Event&) { DetachEvent(I_OnEvent); } +ModResult Module::OnPassCompare(Extensible* ex, const std::string &password, const std::string &input, const std::string& hashtype) { DetachEvent(I_OnPassCompare); return MOD_RES_PASSTHRU; } +void Module::OnGlobalOper(User*) { DetachEvent(I_OnGlobalOper); } +void Module::OnPostConnect(User*) { DetachEvent(I_OnPostConnect); } +void Module::OnUserMessage(User*, void*, int, const std::string&, char, const CUList&, MessageType) { DetachEvent(I_OnUserMessage); } +void Module::OnUserInvite(User*, User*, Channel*, time_t) { DetachEvent(I_OnUserInvite); } +void Module::OnPostTopicChange(User*, Channel*, const std::string&) { DetachEvent(I_OnPostTopicChange); } +void Module::OnSyncUser(User*, ProtocolInterface::Server&) { DetachEvent(I_OnSyncUser); } +void Module::OnSyncChannel(Channel*, ProtocolInterface::Server&) { DetachEvent(I_OnSyncChannel); } +void Module::OnSyncNetwork(ProtocolInterface::Server&) { DetachEvent(I_OnSyncNetwork); } +void Module::OnDecodeMetaData(Extensible*, const std::string&, const std::string&) { DetachEvent(I_OnDecodeMetaData); } +void Module::OnChangeHost(User*, const std::string&) { DetachEvent(I_OnChangeHost); } +void Module::OnChangeName(User*, const std::string&) { DetachEvent(I_OnChangeName); } +void Module::OnChangeIdent(User*, const std::string&) { DetachEvent(I_OnChangeIdent); } +void Module::OnAddLine(User*, XLine*) { DetachEvent(I_OnAddLine); } +void Module::OnDelLine(User*, XLine*) { DetachEvent(I_OnDelLine); } +void Module::OnExpireLine(XLine*) { DetachEvent(I_OnExpireLine); } void Module::OnCleanup(int, void*) { } -ModResult Module::OnChannelPreDelete(Channel*) { return MOD_RES_PASSTHRU; } -void Module::OnChannelDelete(Channel*) { } -ModResult Module::OnSetAway(User*, const std::string &) { return MOD_RES_PASSTHRU; } -ModResult Module::OnUserList(User*, Channel*) { return MOD_RES_PASSTHRU; } -ModResult Module::OnWhoisLine(User*, User*, int&, std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnBuildNeighborList(User*, UserChanList&, std::map&) { } -void Module::OnGarbageCollect() { } -void Module::OnText(User*, void*, int, const std::string&, char, CUList&) { } -void Module::OnRunTestSuite() { } -void Module::OnNamesListItem(User*, Membership*, std::string&, std::string&) { } -ModResult Module::OnNumeric(User*, unsigned int, const std::string&) { return MOD_RES_PASSTHRU; } -void Module::OnHookIO(StreamSocket*, ListenSocket*) { } -ModResult Module::OnAcceptConnection(int, ListenSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { return MOD_RES_PASSTHRU; } -void Module::OnSendWhoLine(User*, User*, Channel*, std::string&) { } -ModResult Module::OnChannelRestrictionApply(User*, Channel*, const char*) { return MOD_RES_PASSTHRU; } - -ModuleManager::ModuleManager() : ModCount(0) +ModResult Module::OnChannelPreDelete(Channel*) { DetachEvent(I_OnChannelPreDelete); return MOD_RES_PASSTHRU; } +void Module::OnChannelDelete(Channel*) { DetachEvent(I_OnChannelDelete); } +ModResult Module::OnSetAway(User*, const std::string &) { DetachEvent(I_OnSetAway); return MOD_RES_PASSTHRU; } +ModResult Module::OnWhoisLine(User*, User*, int&, std::string&) { DetachEvent(I_OnWhoisLine); return MOD_RES_PASSTHRU; } +void Module::OnBuildNeighborList(User*, UserChanList&, std::map&) { DetachEvent(I_OnBuildNeighborList); } +void Module::OnGarbageCollect() { DetachEvent(I_OnGarbageCollect); } +ModResult Module::OnSetConnectClass(LocalUser* user, ConnectClass* myclass) { DetachEvent(I_OnSetConnectClass); return MOD_RES_PASSTHRU; } +void Module::OnText(User*, void*, int, const std::string&, char, CUList&) { DetachEvent(I_OnText); } +void Module::OnRunTestSuite() { DetachEvent(I_OnRunTestSuite); } +void Module::OnNamesListItem(User*, Membership*, std::string&, std::string&) { DetachEvent(I_OnNamesListItem); } +ModResult Module::OnNumeric(User*, unsigned int, const std::string&) { DetachEvent(I_OnNumeric); return MOD_RES_PASSTHRU; } +void Module::OnHookIO(StreamSocket*, ListenSocket*) { DetachEvent(I_OnHookIO); } +ModResult Module::OnAcceptConnection(int, ListenSocket*, irc::sockets::sockaddrs*, irc::sockets::sockaddrs*) { DetachEvent(I_OnAcceptConnection); return MOD_RES_PASSTHRU; } +void Module::OnSendWhoLine(User*, const std::vector&, User*, std::string&) { DetachEvent(I_OnSendWhoLine); } +void Module::OnSetUserIP(LocalUser*) { DetachEvent(I_OnSetUserIP); } + +ServiceProvider::ServiceProvider(Module* Creator, const std::string& Name, ServiceType Type) + : creator(Creator), name(Name), service(Type) +{ + if ((ServerInstance) && (ServerInstance->Modules->NewServices)) + ServerInstance->Modules->NewServices->push_back(this); +} + +void ServiceProvider::DisableAutoRegister() +{ + if ((ServerInstance) && (ServerInstance->Modules->NewServices)) + { + ModuleManager::ServiceList& list = *ServerInstance->Modules->NewServices; + ModuleManager::ServiceList::iterator it = std::find(list.begin(), list.end(), this); + if (it != list.end()) + list.erase(it); + } +} + +ModuleManager::ModuleManager() { } @@ -174,9 +187,6 @@ ModuleManager::~ModuleManager() bool ModuleManager::Attach(Implementation i, Module* mod) { - if (Modules.find(mod->ModuleSourceFile) == Modules.end()) - ServerInstance->Logs->Log("MODULE", DEFAULT, "Module %s is attaching to hook %d in constructor; this does not handle exceptions correctly!", mod->ModuleSourceFile.c_str(), i); - if (std::find(EventHandlers[i].begin(), EventHandlers[i].end(), mod) != EventHandlers[i].end()) return false; @@ -201,6 +211,12 @@ void ModuleManager::Attach(Implementation* i, Module* mod, size_t sz) Attach(i[n], mod); } +void ModuleManager::AttachAll(Module* mod) +{ + for (size_t i = I_BEGIN + 1; i != I_END; ++i) + Attach((Implementation)i, mod); +} + void ModuleManager::DetachAll(Module* mod) { for (size_t n = I_BEGIN + 1; n != I_END; ++n) @@ -215,7 +231,7 @@ bool ModuleManager::SetPriority(Module* mod, Priority s) return true; } -bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module** modules, size_t sz) +bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Module* which) { /** To change the priority of a module, we first find its position in the vector, * then we find the position of the other modules in the vector that this module @@ -223,10 +239,7 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul * on which they want, and we make sure our module is *at least* before or after * the first or last of this subset, depending again on the type of priority. */ - size_t swap_pos = 0; - size_t source = 0; - bool swap = true; - bool found = false; + size_t my_pos = 0; /* Locate our module. This is O(n) but it only occurs on module load so we're * not too bothered about it @@ -235,81 +248,68 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul { if (EventHandlers[i][x] == mod) { - source = x; - found = true; - break; + my_pos = x; + goto found_src; } } /* Eh? this module doesnt exist, probably trying to set priority on an event * theyre not attached to. */ - if (!found) - return false; + return false; +found_src: + // The modules registered for a hook are called in reverse order (to allow for easier removal + // of list entries while looping), meaning that the Priority given to us has the exact opposite effect + // on the list, e.g.: PRIORITY_BEFORE will actually put 'mod' after 'which', etc. + size_t swap_pos = my_pos; switch (s) { - /* Dummy value */ - case PRIORITY_DONTCARE: - swap = false; - break; - /* Module wants to be first, sod everything else */ - case PRIORITY_FIRST: + case PRIORITY_LAST: if (prioritizationState != PRIO_STATE_FIRST) - swap = false; + return true; else swap_pos = 0; - break; - /* Module wants to be last. */ - case PRIORITY_LAST: + break; + case PRIORITY_FIRST: if (prioritizationState != PRIO_STATE_FIRST) - swap = false; - else if (EventHandlers[i].empty()) - swap_pos = 0; + return true; else swap_pos = EventHandlers[i].size() - 1; - break; - /* Place this module after a set of other modules */ - case PRIORITY_AFTER: + break; + case PRIORITY_BEFORE: { - /* Find the latest possible position */ - swap_pos = 0; - swap = false; - for (size_t x = 0; x != EventHandlers[i].size(); ++x) + /* Find the latest possible position, only searching AFTER our position */ + for (size_t x = EventHandlers[i].size() - 1; x > my_pos; --x) { - for (size_t n = 0; n < sz; ++n) + if (EventHandlers[i][x] == which) { - if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x >= swap_pos) && (source <= swap_pos)) - { - swap_pos = x; - swap = true; - } + swap_pos = x; + goto swap_now; } } + // didn't find it - either not loaded or we're already after + return true; } - break; /* Place this module before a set of other modules */ - case PRIORITY_BEFORE: + case PRIORITY_AFTER: { - swap_pos = EventHandlers[i].size() - 1; - swap = false; - for (size_t x = 0; x != EventHandlers[i].size(); ++x) + for (size_t x = 0; x < my_pos; ++x) { - for (size_t n = 0; n < sz; ++n) + if (EventHandlers[i][x] == which) { - if ((modules[n]) && (EventHandlers[i][x] == modules[n]) && (x <= swap_pos) && (source >= swap_pos)) - { - swap = true; - swap_pos = x; - } + swap_pos = x; + goto swap_now; } } + // didn't find it - either not loaded or we're already before + return true; } - break; } +swap_now: /* Do we need to swap? */ - if (swap && (swap_pos != source)) + if (swap_pos != my_pos) { // We are going to change positions; we'll need to run again to verify all requirements if (prioritizationState == PRIO_STATE_LAST) @@ -317,12 +317,12 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul /* Suggestion from Phoenix, "shuffle" the modules to better retain call order */ int incrmnt = 1; - if (source > swap_pos) + if (my_pos > swap_pos) incrmnt = -1; - for (unsigned int j = source; j != swap_pos; j += incrmnt) + for (unsigned int j = my_pos; j != swap_pos; j += incrmnt) { - if (( j + incrmnt > EventHandlers[i].size() - 1) || (j + incrmnt < 0)) + if ((j + incrmnt > EventHandlers[i].size() - 1) || ((incrmnt == -1) && (j == 0))) continue; std::swap(EventHandlers[i][j], EventHandlers[i][j+incrmnt]); @@ -332,54 +332,89 @@ bool ModuleManager::SetPriority(Module* mod, Implementation i, Priority s, Modul return true; } +bool ModuleManager::PrioritizeHooks() +{ + /* We give every module a chance to re-prioritize when we introduce a new one, + * not just the one thats loading, as the new module could affect the preference + * of others + */ + for (int tries = 0; tries < 20; tries++) + { + prioritizationState = tries > 0 ? PRIO_STATE_LAST : PRIO_STATE_FIRST; + for (std::map::iterator n = Modules.begin(); n != Modules.end(); ++n) + n->second->Prioritize(); + + if (prioritizationState == PRIO_STATE_LAST) + break; + if (tries == 19) + { + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Hook priority dependency loop detected"); + return false; + } + } + return true; +} + bool ModuleManager::CanUnload(Module* mod) { std::map::iterator modfind = Modules.find(mod->ModuleSourceFile); - if (modfind == Modules.end() || modfind->second != mod) + if ((modfind == Modules.end()) || (modfind->second != mod) || (mod->dying)) { LastModuleError = "Module " + mod->ModuleSourceFile + " is not loaded, cannot unload it!"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError); return false; } if (mod->GetVersion().Flags & VF_STATIC) { LastModuleError = "Module " + mod->ModuleSourceFile + " not unloadable (marked static)"; - ServerInstance->Logs->Log("MODULE", DEFAULT, LastModuleError); + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError); return false; } + + mod->dying = true; return true; } void ModuleManager::DoSafeUnload(Module* mod) { + // First, notify all modules that a module is about to be unloaded, so in case + // they pass execution to the soon to be unloaded module, it will happen now, + // i.e. before we unregister the services of the module being unloaded + FOREACH_MOD(OnUnloadModule, (mod)); + std::map::iterator modfind = Modules.find(mod->ModuleSourceFile); std::vector > items; ServerInstance->Extensions.BeginUnregister(modfind->second, items); /* Give the module a chance to tidy out all its metadata */ - for (chan_hash::iterator c = ServerInstance->chanlist->begin(); c != ServerInstance->chanlist->end(); c++) + for (chan_hash::iterator c = ServerInstance->chanlist->begin(); c != ServerInstance->chanlist->end(); ) { - mod->OnCleanup(TYPE_CHANNEL,c->second); - c->second->doUnhookExtensions(items); - const UserMembList* users = c->second->GetUsers(); + Channel* chan = c->second; + ++c; + mod->OnCleanup(TYPE_CHANNEL, chan); + chan->doUnhookExtensions(items); + const UserMembList* users = chan->GetUsers(); for(UserMembCIter mi = users->begin(); mi != users->end(); mi++) mi->second->doUnhookExtensions(items); } - for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); u++) + for (user_hash::iterator u = ServerInstance->Users->clientlist->begin(); u != ServerInstance->Users->clientlist->end(); ) { - mod->OnCleanup(TYPE_USER,u->second); - u->second->doUnhookExtensions(items); + User* user = u->second; + // The module may quit the user (e.g. SSL mod unloading) and that will remove it from the container + ++u; + mod->OnCleanup(TYPE_USER, user); + user->doUnhookExtensions(items); } for(char m='A'; m <= 'z'; m++) { ModeHandler* mh; mh = ServerInstance->Modes->FindMode(m, MODETYPE_USER); if (mh && mh->creator == mod) - ServerInstance->Modes->DelMode(mh); + this->DelService(*mh); mh = ServerInstance->Modes->FindMode(m, MODETYPE_CHANNEL); if (mh && mh->creator == mod) - ServerInstance->Modes->DelMode(mh); + this->DelService(*mh); } for(std::multimap::iterator i = DataProviders.begin(); i != DataProviders.end(); ) { @@ -387,62 +422,185 @@ void ModuleManager::DoSafeUnload(Module* mod) if (curr->second->creator == mod) DataProviders.erase(curr); } - for(unsigned int i = 0; i < ServerInstance->Modules->ActiveDynrefs.size(); i++) - ServerInstance->Modules->ActiveDynrefs[i]->ClearCache(); - - /* Tidy up any dangling resolvers */ - ServerInstance->Res->CleanResolvers(mod); - FOREACH_MOD(I_OnUnloadModule,OnUnloadModule(mod)); + dynamic_reference_base::reset_all(); DetachAll(mod); Modules.erase(modfind); ServerInstance->GlobalCulls.AddItem(mod); - ServerInstance->Logs->Log("MODULE", DEFAULT,"Module %s unloaded",mod->ModuleSourceFile.c_str()); - this->ModCount--; - ServerInstance->BuildISupport(); + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Module %s unloaded",mod->ModuleSourceFile.c_str()); + ServerInstance->ISupport.Build(); } -std::string& ModuleManager::LastError() +void ModuleManager::UnloadAll() { - return LastModuleError; + /* We do this more than once, so that any service providers get a + * chance to be unhooked by the modules using them, but then get + * a chance to be removed themsleves. + * + * Note: this deliberately does NOT delete the DLLManager objects + */ + for (int tries = 0; tries < 4; tries++) + { + std::map::iterator i = Modules.begin(); + while (i != Modules.end()) + { + std::map::iterator me = i++; + if (CanUnload(me->second)) + { + DoSafeUnload(me->second); + } + } + ServerInstance->GlobalCulls.Apply(); + } } -CmdResult InspIRCd::CallCommandHandler(const std::string &commandname, const std::vector& parameters, User* user) +namespace { - return this->Parser->CallHandler(commandname, parameters, user); + struct UnloadAction : public HandlerBase0 + { + Module* const mod; + UnloadAction(Module* m) : mod(m) {} + void Call() + { + DLLManager* dll = mod->ModuleDLLManager; + ServerInstance->Modules->DoSafeUnload(mod); + ServerInstance->GlobalCulls.Apply(); + // In pure static mode this is always NULL + delete dll; + ServerInstance->GlobalCulls.AddItem(this); + } + }; + + struct ReloadAction : public HandlerBase0 + { + Module* const mod; + HandlerBase1* const callback; + ReloadAction(Module* m, HandlerBase1* c) + : mod(m), callback(c) {} + void Call() + { + DLLManager* dll = mod->ModuleDLLManager; + std::string name = mod->ModuleSourceFile; + ServerInstance->Modules->DoSafeUnload(mod); + ServerInstance->GlobalCulls.Apply(); + delete dll; + bool rv = ServerInstance->Modules->Load(name); + if (callback) + callback->Call(rv); + ServerInstance->GlobalCulls.AddItem(this); + } + }; } -bool InspIRCd::IsValidModuleCommand(const std::string &commandname, int pcnt, User* user) +bool ModuleManager::Unload(Module* mod) { - return this->Parser->IsValidCommand(commandname, pcnt, user); + if (!CanUnload(mod)) + return false; + ServerInstance->AtomicActions.AddAction(new UnloadAction(mod)); + return true; } -void ModuleManager::AddService(ServiceProvider& item) +void ModuleManager::Reload(Module* mod, HandlerBase1* callback) { - Module* owner = item.creator; - if (Modules.find(owner->ModuleSourceFile) == Modules.end()) - ServerInstance->Logs->Log("MODULE", DEFAULT, "Module %s is registering item %s in constructor; this does not handle exceptions correctly!", owner->ModuleSourceFile.c_str(), item.name.c_str()); + if (CanUnload(mod)) + ServerInstance->AtomicActions.AddAction(new ReloadAction(mod, callback)); + else + callback->Call(false); +} + +void ModuleManager::LoadAll() +{ + std::map servicemap; + LoadCoreModules(servicemap); + ConfigTagList tags = ServerInstance->Config->ConfTags("module"); + for (ConfigIter i = tags.first; i != tags.second; ++i) + { + ConfigTag* tag = i->second; + std::string name = tag->getString("name"); + this->NewServices = &servicemap[name]; + std::cout << "[" << con_green << "*" << con_reset << "] Loading module:\t" << con_green << name << con_reset << std::endl; + + if (!this->Load(name, true)) + { + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError()); + std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl; + ServerInstance->Exit(EXIT_STATUS_MODULE); + } + } + + ConfigStatus confstatus; + + for (ModuleMap::const_iterator i = Modules.begin(); i != Modules.end(); ++i) + { + Module* mod = i->second; + try + { + ServerInstance->Logs->Log("MODULE", LOG_DEBUG, "Initializing %s", i->first.c_str()); + AttachAll(mod); + AddServices(servicemap[i->first]); + mod->init(); + mod->ReadConfig(confstatus); + } + catch (CoreException& modexcept) + { + LastModuleError = "Unable to initialize " + mod->ModuleSourceFile + ": " + modexcept.GetReason(); + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError); + std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << LastModuleError << std::endl << std::endl; + ServerInstance->Exit(EXIT_STATUS_MODULE); + } + } + + this->NewServices = NULL; + + if (!PrioritizeHooks()) + ServerInstance->Exit(EXIT_STATUS_MODULE); +} + +std::string& ModuleManager::LastError() +{ + return LastModuleError; +} + +void ModuleManager::AddServices(const ServiceList& list) +{ + for (ServiceList::const_iterator i = list.begin(); i != list.end(); ++i) + { + ServiceProvider& s = **i; + AddService(s); + } +} + +void ModuleManager::AddService(ServiceProvider& item) +{ switch (item.service) { case SERVICE_COMMAND: if (!ServerInstance->Parser->AddCommand(static_cast(&item))) throw ModuleException("Command "+std::string(item.name)+" already exists."); return; - case SERVICE_CMODE: - case SERVICE_UMODE: - if (!ServerInstance->Modes->AddMode(static_cast(&item))) + case SERVICE_MODE: + { + ModeHandler* mh = static_cast(&item); + if (!ServerInstance->Modes->AddMode(mh)) throw ModuleException("Mode "+std::string(item.name)+" already exists."); + DataProviders.insert(std::make_pair((mh->GetModeType() == MODETYPE_CHANNEL ? "mode/" : "umode/") + item.name, &item)); + dynamic_reference_base::reset_all(); return; + } case SERVICE_METADATA: - ServerInstance->Extensions.Register(static_cast(&item)); + if (!ServerInstance->Extensions.Register(static_cast(&item))) + throw ModuleException("Extension " + std::string(item.name) + " already exists."); return; case SERVICE_DATA: case SERVICE_IOHOOK: { + if ((item.name.substr(0, 5) == "mode/") || (item.name.substr(0, 6) == "umode/")) + throw ModuleException("The \"mode/\" and the \"umode\" service name prefixes are reserved."); + DataProviders.insert(std::make_pair(item.name, &item)); std::string::size_type slash = item.name.find('/'); if (slash != std::string::npos) @@ -450,6 +608,7 @@ void ModuleManager::AddService(ServiceProvider& item) DataProviders.insert(std::make_pair(item.name.substr(0, slash), &item)); DataProviders.insert(std::make_pair(item.name.substr(slash + 1), &item)); } + dynamic_reference_base::reset_all(); return; } default: @@ -457,6 +616,31 @@ void ModuleManager::AddService(ServiceProvider& item) } } +void ModuleManager::DelService(ServiceProvider& item) +{ + switch (item.service) + { + case SERVICE_MODE: + if (!ServerInstance->Modes->DelMode(static_cast(&item))) + throw ModuleException("Mode "+std::string(item.name)+" does not exist."); + // Fall through + case SERVICE_DATA: + case SERVICE_IOHOOK: + { + for(std::multimap::iterator i = DataProviders.begin(); i != DataProviders.end(); ) + { + std::multimap::iterator curr = i++; + if (curr->second == &item) + DataProviders.erase(curr); + } + dynamic_reference_base::reset_all(); + return; + } + default: + throw ModuleException("Cannot delete unknown service type"); + } +} + ServiceProvider* ModuleManager::FindService(ServiceType type, const std::string& name) { switch (type) @@ -478,19 +662,28 @@ ServiceProvider* ModuleManager::FindService(ServiceType type, const std::string& dynamic_reference_base::dynamic_reference_base(Module* Creator, const std::string& Name) : name(Name), value(NULL), creator(Creator) { - ServerInstance->Modules->ActiveDynrefs.push_back(this); + if (!dynrefs) + dynrefs = new std::vector; + dynrefs->push_back(this); + if (dynref_init_complete) + resolve(); } dynamic_reference_base::~dynamic_reference_base() { - for(unsigned int i = 0; i < ServerInstance->Modules->ActiveDynrefs.size(); i++) + for(unsigned int i = 0; i < dynrefs->size(); i++) { - if (ServerInstance->Modules->ActiveDynrefs[i] == this) + if (dynrefs->at(i) == this) { - unsigned int last = ServerInstance->Modules->ActiveDynrefs.size() - 1; + unsigned int last = dynrefs->size() - 1; if (i != last) - ServerInstance->Modules->ActiveDynrefs[i] = ServerInstance->Modules->ActiveDynrefs[last]; - ServerInstance->Modules->ActiveDynrefs.erase(ServerInstance->Modules->ActiveDynrefs.begin() + last); + dynrefs->at(i) = dynrefs->at(last); + dynrefs->erase(dynrefs->begin() + last); + if (dynrefs->empty()) + { + delete dynrefs; + dynrefs = NULL; + } return; } } @@ -499,41 +692,16 @@ dynamic_reference_base::~dynamic_reference_base() void dynamic_reference_base::SetProvider(const std::string& newname) { name = newname; - ClearCache(); + resolve(); } -void dynamic_reference_base::lookup() +void dynamic_reference_base::resolve() { - if (!*this) - throw ModuleException("Dynamic reference to '" + name + "' failed to resolve"); -} - -dynamic_reference_base::operator bool() -{ - if (!value) - { - std::multimap::iterator i = ServerInstance->Modules->DataProviders.find(name); - if (i != ServerInstance->Modules->DataProviders.end()) - value = static_cast(i->second); - } - return value; -} - -void InspIRCd::SendMode(const std::vector& parameters, User *user) -{ - this->Modes->Process(parameters, user); -} - -bool InspIRCd::AddResolver(Resolver* r, bool cached) -{ - if (!cached) - return this->Res->AddResolverClass(r); + std::multimap::iterator i = ServerInstance->Modules->DataProviders.find(name); + if (i != ServerInstance->Modules->DataProviders.end()) + value = static_cast(i->second); else - { - r->TriggerCachedResult(); - delete r; - return true; - } + value = NULL; } Module* ModuleManager::Find(const std::string &name) @@ -545,163 +713,3 @@ Module* ModuleManager::Find(const std::string &name) else return modfind->second; } - -const std::vector ModuleManager::GetAllModuleNames(int filter) -{ - std::vector retval; - for (std::map::iterator x = Modules.begin(); x != Modules.end(); ++x) - if (!filter || (x->second->GetVersion().Flags & filter)) - retval.push_back(x->first); - return retval; -} - -ConfigReader::ConfigReader() -{ - this->error = 0; -} - - -ConfigReader::~ConfigReader() -{ -} - -static ConfigTag* SlowGetTag(const std::string &tag, int index) -{ - ConfigTagList tags = ServerInstance->Config->ConfTags(tag); - while (tags.first != tags.second) - { - if (!index) - return tags.first->second; - tags.first++; - index--; - } - return NULL; -} - -std::string ConfigReader::ReadValue(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool allow_linefeeds) -{ - std::string result = default_value; - if (!SlowGetTag(tag, index)->readString(name, result, allow_linefeeds)) - { - this->error = CONF_VALUE_NOT_FOUND; - } - return result; -} - -std::string ConfigReader::ReadValue(const std::string &tag, const std::string &name, int index, bool allow_linefeeds) -{ - return ReadValue(tag, name, "", index, allow_linefeeds); -} - -bool ConfigReader::ReadFlag(const std::string &tag, const std::string &name, const std::string &default_value, int index) -{ - bool def = (default_value == "yes"); - return SlowGetTag(tag, index)->getBool(name, def); -} - -bool ConfigReader::ReadFlag(const std::string &tag, const std::string &name, int index) -{ - return ReadFlag(tag, name, "", index); -} - - -int ConfigReader::ReadInteger(const std::string &tag, const std::string &name, const std::string &default_value, int index, bool need_positive) -{ - int v = atoi(default_value.c_str()); - int result = SlowGetTag(tag, index)->getInt(name, v); - - if ((need_positive) && (result < 0)) - { - this->error = CONF_INT_NEGATIVE; - return 0; - } - - return result; -} - -int ConfigReader::ReadInteger(const std::string &tag, const std::string &name, int index, bool need_positive) -{ - return ReadInteger(tag, name, "", index, need_positive); -} - -long ConfigReader::GetError() -{ - long olderr = this->error; - this->error = 0; - return olderr; -} - -int ConfigReader::Enumerate(const std::string &tag) -{ - ServerInstance->Logs->Log("MODULE", DEBUG, "Module is using ConfigReader::Enumerate on %s; this is slow!", - tag.c_str()); - int i=0; - while (SlowGetTag(tag, i)) i++; - return i; -} - -FileReader::FileReader(const std::string &filename) -{ - LoadFile(filename); -} - -FileReader::FileReader() -{ -} - -std::string FileReader::Contents() -{ - std::string x; - for (file_cache::iterator a = this->fc.begin(); a != this->fc.end(); a++) - { - x.append(*a); - x.append("\r\n"); - } - return x; -} - -unsigned long FileReader::ContentSize() -{ - return this->contentsize; -} - -void FileReader::CalcSize() -{ - unsigned long n = 0; - for (file_cache::iterator a = this->fc.begin(); a != this->fc.end(); a++) - n += (a->length() + 2); - this->contentsize = n; -} - -void FileReader::LoadFile(const std::string &filename) -{ - file_cache c; - c.clear(); - if (ServerInstance->Config->ReadFile(c,filename.c_str())) - { - this->fc = c; - this->CalcSize(); - } -} - - -FileReader::~FileReader() -{ -} - -bool FileReader::Exists() -{ - return (!(fc.size() == 0)); -} - -std::string FileReader::GetLine(int x) -{ - if ((x<0) || ((unsigned)x>fc.size())) - return ""; - return fc[x]; -} - -int FileReader::FileSize() -{ - return fc.size(); -}