src/modulemanager.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2009-2010 Daniel De Graaf <danieldg@inspircd.org>
   5  *
   6  * This file is part of InspIRCd.  InspIRCd is free software: you can
   7  * redistribute it and/or modify it under the terms of the GNU General Public
   8  * License as published by the Free Software Foundation, version 2.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  12  * FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  13  * details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19
  20 #include "inspircd.h"
  21 #include "exitcodes.h"
  22 #include <iostream>
  23
  24 #ifndef _WIN32
  25 #include <dirent.h>
  26 #endif
  27
  28 bool ModuleManager::Load(const std::string& modname, bool defer)
  29 {
  30         /* Don't allow people to specify paths for modules, it doesn't work as expected */
  31         if (modname.find('/') != std::string::npos)
  32         {
  33                 LastModuleError = "You can't load modules with a path: " + modname;
  34                 return false;
  35         }
  36
  37         const std::string filename = ExpandModName(modname);
  38         const std::string moduleFile = ServerInstance->Config->Paths.PrependModule(filename);
  39
  40         if (!FileSystem::FileExists(moduleFile))
  41         {
  42                 LastModuleError = "Module file could not be found: " + filename;
  43                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  44                 return false;
  45         }
  46
  47         if (Modules.find(filename) != Modules.end())
  48         {
  49                 LastModuleError = "Module " + filename + " is already loaded, cannot load a module twice!";
  50                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  51                 return false;
  52         }
  53
  54         Module* newmod = NULL;
  55         DLLManager* newhandle = new DLLManager(moduleFile.c_str());
  56         ServiceList newservices;
  57         if (!defer)
  58                 this->NewServices = &newservices;
  59
  60         try
  61         {
  62                 newmod = newhandle->CallInit();
  63                 this->NewServices = NULL;
  64
  65                 if (newmod)
  66                 {
  67                         newmod->ModuleSourceFile = filename;
  68                         newmod->ModuleDLLManager = newhandle;
  69                         Modules[filename] = newmod;
  70                         std::string version = newhandle->GetVersion();
  71                         if (version.empty())
  72                                 version.assign("unknown");
  73                         if (defer)
  74                         {
  75                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)",
  76                                         filename.c_str(), version.c_str());
  77                         }
  78                         else
  79                         {
  80                                 ConfigStatus confstatus;
  81
  82                                 AttachAll(newmod);
  83                                 AddServices(newservices);
  84                                 newmod->init();
  85                                 newmod->ReadConfig(confstatus);
  86
  87                                 Version v = newmod->GetVersion();
  88                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)%s",
  89                                         filename.c_str(), version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
  90                         }
  91                 }
  92                 else
  93                 {
  94                         LastModuleError = "Unable to load " + filename + ": " + newhandle->LastError();
  95                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  96                         delete newhandle;
  97                         return false;
  98                 }
  99         }
 100         catch (CoreException& modexcept)
 101         {
 102                 this->NewServices = NULL;
 103
 104                 // failure in module constructor
 105                 if (newmod)
 106                 {
 107                         DoSafeUnload(newmod);
 108                         ServerInstance->GlobalCulls.AddItem(newhandle);
 109                 }
 110                 else
 111                         delete newhandle;
 112                 LastModuleError = "Unable to load " + filename + ": " + modexcept.GetReason();
 113                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
 114                 return false;
 115         }
 116
 117         if (defer)
 118                 return true;
 119
 120         FOREACH_MOD(OnLoadModule, (newmod));
 121         PrioritizeHooks();
 122         ServerInstance->ISupport.Build();
 123         return true;
 124 }
 125
 126 /* We must load the modules AFTER initializing the socket engine, now */
 127 void ModuleManager::LoadCoreModules(std::map<std::string, ServiceList>& servicemap)
 128 {
 129         std::cout << std::endl << "Loading core commands" << std::flush;
 130
 131         DIR* library = opendir(ServerInstance->Config->Paths.Module.c_str());
 132         if (library)
 133         {
 134                 dirent* entry = NULL;
 135                 while (0 != (entry = readdir(library)))
 136                 {
 137                         if (InspIRCd::Match(entry->d_name, "core_*.so", ascii_case_insensitive_map))
 138                         {
 139                                 std::cout << "." << std::flush;
 140
 141                                 this->NewServices = &servicemap[entry->d_name];
 142
 143                                 if (!Load(entry->d_name, true))
 144                                 {
 145                                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError());
 146                                         std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl;
 147                                         ServerInstance->Exit(EXIT_STATUS_MODULE);
 148                                 }
 149                         }
 150                 }
 151                 closedir(library);
 152                 std::cout << std::endl;
 153         }
 154 }