src/modmanager_dynamic.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 #ifndef INSPIRCD_STATIC
  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                         newmod->dying = false;
  72                         Modules[filename] = newmod;
  73                         std::string version = newhandle->GetVersion();
  74                         if (version.empty())
  75                                 version.assign("unknown");
  76                         if (defer)
  77                         {
  78                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)",
  79                                         filename.c_str(), version.c_str());
  80                         }
  81                         else
  82                         {
  83                                 ConfigStatus confstatus;
  84
  85                                 AttachAll(newmod);
  86                                 AddServices(newservices);
  87                                 newmod->init();
  88                                 newmod->ReadConfig(confstatus);
  89
  90                                 Version v = newmod->GetVersion();
  91                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)%s",
  92                                         filename.c_str(), version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
  93                         }
  94                 }
  95                 else
  96                 {
  97                         LastModuleError = "Unable to load " + filename + ": " + newhandle->LastError();
  98                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  99                         delete newhandle;
 100                         return false;
 101                 }
 102         }
 103         catch (CoreException& modexcept)
 104         {
 105                 this->NewServices = NULL;
 106
 107                 // failure in module constructor
 108                 if (newmod)
 109                 {
 110                         DoSafeUnload(newmod);
 111                         ServerInstance->GlobalCulls.AddItem(newhandle);
 112                 }
 113                 else
 114                         delete newhandle;
 115                 LastModuleError = "Unable to load " + filename + ": " + modexcept.GetReason();
 116                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
 117                 return false;
 118         }
 119
 120         if (defer)
 121                 return true;
 122
 123         FOREACH_MOD(OnLoadModule, (newmod));
 124         PrioritizeHooks();
 125         ServerInstance->ISupport.Build();
 126         return true;
 127 }
 128
 129 /* We must load the modules AFTER initializing the socket engine, now */
 130 void ModuleManager::LoadCoreModules(std::map<std::string, ServiceList>& servicemap)
 131 {
 132         std::cout << std::endl << "Loading core commands";
 133         fflush(stdout);
 134
 135         DIR* library = opendir(ServerInstance->Config->Paths.Module.c_str());
 136         if (library)
 137         {
 138                 dirent* entry = NULL;
 139                 while (0 != (entry = readdir(library)))
 140                 {
 141                         if (InspIRCd::Match(entry->d_name, "core_*.so", ascii_case_insensitive_map))
 142                         {
 143                                 std::cout << ".";
 144                                 fflush(stdout);
 145
 146                                 this->NewServices = &servicemap[entry->d_name];
 147
 148                                 if (!Load(entry->d_name, true))
 149                                 {
 150                                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError());
 151                                         std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl;
 152                                         ServerInstance->Exit(EXIT_STATUS_MODULE);
 153                                 }
 154                         }
 155                 }
 156                 closedir(library);
 157                 std::cout << std::endl;
 158         }
 159 }
 160
 161 #endif