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 PURE_STATIC
  29
  30 bool ModuleManager::Load(const std::string& filename, bool defer)
  31 {
  32         /* Don't allow people to specify paths for modules, it doesn't work as expected */
  33         if (filename.find('/') != std::string::npos)
  34                 return false;
  35
  36         const std::string moduleFile = ServerInstance->Config->Paths.PrependModule(filename);
  37
  38         if (!FileSystem::FileExists(moduleFile))
  39         {
  40                 LastModuleError = "Module file could not be found: " + filename;
  41                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  42                 return false;
  43         }
  44
  45         if (Modules.find(filename) != Modules.end())
  46         {
  47                 LastModuleError = "Module " + filename + " is already loaded, cannot load a module twice!";
  48                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  49                 return false;
  50         }
  51
  52         Module* newmod = NULL;
  53         DLLManager* newhandle = new DLLManager(moduleFile.c_str());
  54         ServiceList newservices;
  55         if (!defer)
  56                 this->NewServices = &newservices;
  57
  58         try
  59         {
  60                 newmod = newhandle->CallInit();
  61                 this->NewServices = NULL;
  62
  63                 if (newmod)
  64                 {
  65                         newmod->ModuleSourceFile = filename;
  66                         newmod->ModuleDLLManager = newhandle;
  67                         newmod->dying = false;
  68                         Modules[filename] = newmod;
  69                         std::string version = newhandle->GetVersion();
  70                         if (defer)
  71                         {
  72                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)",
  73                                         filename.c_str(), version.c_str());
  74                         }
  75                         else
  76                         {
  77                                 ConfigStatus confstatus;
  78
  79                                 AttachAll(newmod);
  80                                 AddServices(newservices);
  81                                 newmod->init();
  82                                 newmod->ReadConfig(confstatus);
  83
  84                                 Version v = newmod->GetVersion();
  85                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)%s",
  86                                         filename.c_str(), version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
  87                         }
  88                 }
  89                 else
  90                 {
  91                         LastModuleError = "Unable to load " + filename + ": " + newhandle->LastError();
  92                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  93                         delete newhandle;
  94                         return false;
  95                 }
  96         }
  97         catch (CoreException& modexcept)
  98         {
  99                 this->NewServices = NULL;
 100
 101                 // failure in module constructor
 102                 if (newmod)
 103                 {
 104                         DoSafeUnload(newmod);
 105                         ServerInstance->GlobalCulls.AddItem(newhandle);
 106                 }
 107                 else
 108                         delete newhandle;
 109                 LastModuleError = "Unable to load " + filename + ": " + modexcept.GetReason();
 110                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
 111                 return false;
 112         }
 113
 114         if (defer)
 115                 return true;
 116
 117         FOREACH_MOD(OnLoadModule, (newmod));
 118         PrioritizeHooks();
 119         ServerInstance->ISupport.Build();
 120         return true;
 121 }
 122
 123 /* We must load the modules AFTER initializing the socket engine, now */
 124 void ModuleManager::LoadCoreModules(std::map<std::string, ServiceList>& servicemap)
 125 {
 126         std::cout << std::endl << "Loading core commands";
 127         fflush(stdout);
 128
 129         DIR* library = opendir(ServerInstance->Config->Paths.Module.c_str());
 130         if (library)
 131         {
 132                 dirent* entry = NULL;
 133                 while (0 != (entry = readdir(library)))
 134                 {
 135                         if (InspIRCd::Match(entry->d_name, "core_*.so", ascii_case_insensitive_map))
 136                         {
 137                                 std::cout << ".";
 138                                 fflush(stdout);
 139
 140                                 this->NewServices = &servicemap[entry->d_name];
 141
 142                                 if (!Load(entry->d_name, true))
 143                                 {
 144                                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError());
 145                                         std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl;
 146                                         ServerInstance->Exit(EXIT_STATUS_MODULE);
 147                                 }
 148                         }
 149                 }
 150                 closedir(library);
 151                 std::cout << std::endl;
 152         }
 153 }
 154
 155 #endif