src/modulemanager.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2013, 2015, 2019-2020 Sadie Powell <sadie@witchery.services>
   5  *   Copyright (C) 2013 Adam <Adam@anope.org>
   6  *   Copyright (C) 2012-2013, 2015 Attila Molnar <attilamolnar@hush.com>
   7  *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
   8  *   Copyright (C) 2012 ChrisTX <xpipe@hotmail.de>
   9  *   Copyright (C) 2010 Craig Edwards <brain@inspircd.org>
  10  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
  11  *
  12  * This file is part of InspIRCd.  InspIRCd is free software: you can
  13  * redistribute it and/or modify it under the terms of the GNU General Public
  14  * License as published by the Free Software Foundation, version 2.
  15  *
  16  * This program is distributed in the hope that it will be useful, but WITHOUT
  17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  18  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  19  * details.
  20  *
  21  * You should have received a copy of the GNU General Public License
  22  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  23  */
  24
  25
  26 #include "inspircd.h"
  27 #include "exitcodes.h"
  28 #include <iostream>
  29
  30 bool ModuleManager::Load(const std::string& modname, bool defer)
  31 {
  32         /* Don't allow people to specify paths for modules, it doesn't work as expected */
  33         if (modname.find('/') != std::string::npos)
  34         {
  35                 LastModuleError = "You can't load modules with a path: " + modname;
  36                 return false;
  37         }
  38
  39         const std::string filename = ExpandModName(modname);
  40         const std::string moduleFile = ServerInstance->Config->Paths.PrependModule(filename);
  41
  42         if (!FileSystem::FileExists(moduleFile))
  43         {
  44                 LastModuleError = "Module file could not be found: " + filename;
  45                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  46                 return false;
  47         }
  48
  49         if (Modules.find(filename) != Modules.end())
  50         {
  51                 LastModuleError = "Module " + filename + " is already loaded, cannot load a module twice!";
  52                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  53                 return false;
  54         }
  55
  56         Module* newmod = NULL;
  57         DLLManager* newhandle = new DLLManager(moduleFile.c_str());
  58         ServiceList newservices;
  59         if (!defer)
  60                 this->NewServices = &newservices;
  61
  62         try
  63         {
  64                 newmod = newhandle->CallInit();
  65                 this->NewServices = NULL;
  66
  67                 if (newmod)
  68                 {
  69                         newmod->ModuleSourceFile = filename;
  70                         newmod->ModuleDLLManager = newhandle;
  71                         Modules[filename] = newmod;
  72                         const char* version = newhandle->GetVersion();
  73                         if (!version)
  74                                 version = "unknown";
  75                         if (defer)
  76                         {
  77                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)",
  78                                         filename.c_str(), version);
  79                         }
  80                         else
  81                         {
  82                                 ConfigStatus confstatus;
  83
  84                                 AttachAll(newmod);
  85                                 AddServices(newservices);
  86                                 newmod->init();
  87                                 newmod->ReadConfig(confstatus);
  88
  89                                 Version v = newmod->GetVersion();
  90                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)%s",
  91                                         filename.c_str(), version, (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
  92                         }
  93                 }
  94                 else
  95                 {
  96                         LastModuleError = "Unable to load " + filename + ": " + newhandle->LastError();
  97                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  98                         delete newhandle;
  99                         return false;
 100                 }
 101         }
 102         catch (CoreException& modexcept)
 103         {
 104                 this->NewServices = NULL;
 105
 106                 // failure in module constructor
 107                 if (newmod)
 108                 {
 109                         DoSafeUnload(newmod);
 110                         ServerInstance->GlobalCulls.AddItem(newhandle);
 111                 }
 112                 else
 113                         delete newhandle;
 114                 LastModuleError = "Unable to load " + filename + ": " + modexcept.GetReason();
 115                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
 116                 return false;
 117         }
 118
 119         if (defer)
 120                 return true;
 121
 122         FOREACH_MOD(OnLoadModule, (newmod));
 123         PrioritizeHooks();
 124         ServerInstance->ISupport.Build();
 125         return true;
 126 }
 127
 128 /* We must load the modules AFTER initializing the socket engine, now */
 129 void ModuleManager::LoadCoreModules(std::map<std::string, ServiceList>& servicemap)
 130 {
 131         std::cout << "Loading core modules " << std::flush;
 132
 133         std::vector<std::string> files;
 134         if (!FileSystem::GetFileList(ServerInstance->Config->Paths.Module, files, "core_*.so"))
 135         {
 136                 std::cout << "failed!" << std::endl;
 137                 ServerInstance->Exit(EXIT_STATUS_MODULE);
 138         }
 139
 140         for (std::vector<std::string>::const_iterator iter = files.begin(); iter != files.end(); ++iter)
 141         {
 142                 std::cout << "." << std::flush;
 143
 144                 const std::string& name = *iter;
 145                 this->NewServices = &servicemap[name];
 146
 147                 if (!Load(name, true))
 148                 {
 149                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError());
 150                         std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl;
 151                         ServerInstance->Exit(EXIT_STATUS_MODULE);
 152                 }
 153         }
 154
 155         std::cout << std::endl;
 156 }