X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;ds=sidebyside;f=src%2Fmodules.cpp;h=ca312c4a5ec44d4500f23268f1c1fedeaf74d100;hb=fd1d19d6345943ecdb5ce4ef947f9b3c5c8bca86;hp=9e5c84bfff3d8e32412b9db1773c21bcc27ac2f3;hpb=11e45f2cb78c0667e2c7c7e2370944bf64b140b8;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/modules.cpp b/src/modules.cpp index 9e5c84bff..ca312c4a5 100644 --- a/src/modules.cpp +++ b/src/modules.cpp @@ -1,57 +1,61 @@ -/* +------------------------------------+ - * | 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) { } @@ -82,25 +86,24 @@ 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&) { } +ModResult Module::OnUserPreJoin(LocalUser*, Channel*, const std::string&, std::string&, const std::string&) { return MOD_RES_PASSTHRU; } +void Module::OnMode(User*, User*, Channel*, 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::OnUserPreMessage(User*, void*, int, std::string&, char, CUList&, MessageType) { 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&) { } +void Module::On005Numeric(std::map&) { } 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&) { } +void Module::OnPostCommand(Command*, const std::vector&, LocalUser*, CmdResult, const std::string&) { } void Module::OnUserInit(LocalUser*) { } ModResult Module::OnCheckReady(LocalUser*) { return MOD_RES_PASSTHRU; } ModResult Module::OnUserRegister(LocalUser*) { return MOD_RES_PASSTHRU; } @@ -118,20 +121,10 @@ ModResult Module::OnChangeLocalUserHost(LocalUser*, const std::string&) { return 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::OnUserMessage(User*, void*, int, const std::string&, char, const CUList&, MessageType) { } void Module::OnUserInvite(User*, User*, Channel*, time_t) { } void Module::OnPostTopicChange(User*, Channel*, const std::string&) { } void Module::OnGetServerDescription(const std::string&, std::string&) { } @@ -141,7 +134,6 @@ 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&) { } @@ -162,7 +154,8 @@ 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*, const std::vector&, User*, Channel*, std::string&) { } +void Module::OnSendWhoLine(User*, const std::vector&, User*, std::string&) { } +void Module::OnSetUserIP(LocalUser*) { } ModuleManager::ModuleManager() : ModCount(0) { @@ -174,9 +167,6 @@ ModuleManager::~ModuleManager() bool ModuleManager::Attach(Implementation i, Module* mod) { - if (Modules.find(mod->ModuleSourceFile) == Modules.end()) - ServerInstance->Logs->Log("MODULE", DEFAULT, "Module is attaching to hook %d in constructor; this does not handle exceptions correctly!", i); - if (std::find(EventHandlers[i].begin(), EventHandlers[i].end(), mod) != EventHandlers[i].end()) return false; @@ -303,7 +293,7 @@ swap_now: 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]); @@ -317,23 +307,30 @@ 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(I_OnUnloadModule,OnUnloadModule(mod)); + std::map::iterator modfind = Modules.find(mod->ModuleSourceFile); std::vector > items; @@ -357,10 +354,10 @@ void ModuleManager::DoSafeUnload(Module* mod) 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(); ) { @@ -368,45 +365,49 @@ 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()); + ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "Module %s unloaded",mod->ModuleSourceFile.c_str()); this->ModCount--; - ServerInstance->BuildISupport(); -} - -std::string& ModuleManager::LastError() -{ - return LastModuleError; + ServerInstance->ISupport.Build(); } -CmdResult InspIRCd::CallCommandHandler(const std::string &commandname, const std::vector& parameters, User* user) +void ModuleManager::UnloadAll() { - return this->Parser->CallHandler(commandname, parameters, user); + /* 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(); + } } -bool InspIRCd::IsValidModuleCommand(const std::string &commandname, int pcnt, User* user) +std::string& ModuleManager::LastError() { - return this->Parser->IsValidCommand(commandname, pcnt, user); + return LastModuleError; } void ModuleManager::AddService(ServiceProvider& item) { - Module* owner = item.creator; - if (Modules.find(owner->ModuleSourceFile) == Modules.end()) - ServerInstance->Logs->Log("MODULE", DEFAULT, "Module is registering item %s in constructor; this does not handle exceptions correctly!", item.name.c_str()); - switch (item.service) { case SERVICE_COMMAND: @@ -414,15 +415,24 @@ void ModuleManager::AddService(ServiceProvider& item) throw ModuleException("Command "+std::string(item.name)+" already exists."); return; case SERVICE_MODE: - if (!ServerInstance->Modes->AddMode(static_cast(&item))) + { + 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) @@ -430,6 +440,7 @@ 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: @@ -444,7 +455,7 @@ void ModuleManager::DelService(ServiceProvider& item) case SERVICE_MODE: if (!ServerInstance->Modes->DelMode(static_cast(&item))) throw ModuleException("Mode "+std::string(item.name)+" does not exist."); - return; + // Fall through case SERVICE_DATA: case SERVICE_IOHOOK: { @@ -454,8 +465,7 @@ void ModuleManager::DelService(ServiceProvider& item) if (curr->second == &item) DataProviders.erase(curr); } - for(unsigned int i = 0; i < ServerInstance->Modules->ActiveDynrefs.size(); i++) - ServerInstance->Modules->ActiveDynrefs[i]->ClearCache(); + dynamic_reference_base::reset_all(); return; } default: @@ -484,19 +494,28 @@ 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; } } @@ -505,49 +524,16 @@ dynamic_reference_base::~dynamic_reference_base() void dynamic_reference_base::SetProvider(const std::string& newname) { name = newname; - ClearCache(); -} - -void dynamic_reference_base::lookup() -{ - 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; + resolve(); } -void InspIRCd::SendMode(const std::vector& parameters, User *user) +void dynamic_reference_base::resolve() { - this->Modes->Process(parameters, user); -} - - -void InspIRCd::SendGlobalMode(const std::vector& parameters, User *user) -{ - Modes->Process(parameters, user); - if (!Modes->GetLastParse().empty()) - this->PI->SendMode(parameters[0], Modes->GetLastParseParams(), Modes->GetLastParseTranslate()); -} - -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) @@ -569,169 +555,45 @@ const std::vector ModuleManager::GetAllModuleNames(int filter) return retval; } -ConfigReader::ConfigReader() +FileReader::FileReader(const std::string& filename) { - this->error = 0; - ServerInstance->Logs->Log("MODULE", DEBUG, "ConfigReader is deprecated in 2.0; " - "use ServerInstance->Config->ConfValue(\"key\") or ->ConfTags(\"key\") instead"); + Load(filename); } - -ConfigReader::~ConfigReader() -{ -} - -static ConfigTag* SlowGetTag(const std::string &tag, int index) +void FileReader::Load(const std::string& filename) { - ConfigTagList tags = ServerInstance->Config->ConfTags(tag); - while (tags.first != tags.second) + // If the file is stored in the file cache then we used that version instead. + ConfigFileCache::iterator it = ServerInstance->Config->Files.find(filename); + if (it != ServerInstance->Config->Files.end()) { - if (!index) - return tags.first->second; - tags.first++; - index--; + this->lines = it->second; } - 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)) + else { - this->error = CONF_INT_NEGATIVE; - return 0; - } - - return result; -} + lines.clear(); -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); -} + std::ifstream stream(filename.c_str()); + if (!stream.is_open()) + throw CoreException(filename + " does not exist or is not readable!"); -FileReader::FileReader() -{ -} + std::string line; + while (std::getline(stream, line)) + { + lines.push_back(line); + totalSize += line.size() + 2; + } -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"); + stream.close(); } - 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) +std::string FileReader::GetString() { - std::map::iterator file = ServerInstance->Config->Files.find(filename); - if (file != ServerInstance->Config->Files.end()) + std::string buffer; + for (file_cache::iterator it = this->lines.begin(); it != this->lines.end(); ++it) { - this->fc = file->second; + buffer.append(*it); + buffer.append("\r\n"); } - else - { - fc.clear(); - FILE* f = fopen(filename.c_str(), "r"); - if (!f) - return; - char linebuf[MAXBUF*10]; - while (fgets(linebuf, sizeof(linebuf), f)) - { - int len = strlen(linebuf); - if (len) - fc.push_back(std::string(linebuf, len - 1)); - } - fclose(f); - } - 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(); + return buffer; }