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 "xline.h"
  22 #include "socket.h"
  23 #include "socketengine.h"
  24 #include "command_parse.h"
  25 #include "exitcodes.h"
  26 #include <iostream>
  27
  28 #ifndef _WIN32
  29 #include <dirent.h>
  30 #endif
  31
  32 #ifndef PURE_STATIC
  33
  34 bool ModuleManager::Load(const std::string& filename, bool defer)
  35 {
  36         /* Don't allow people to specify paths for modules, it doesn't work as expected */
  37         if (filename.find('/') != std::string::npos)
  38                 return false;
  39
  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 (defer)
  75                         {
  76                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)",
  77                                         filename.c_str(), version.c_str());
  78                         }
  79                         else
  80                         {
  81                                 ConfigStatus confstatus;
  82
  83                                 AttachAll(newmod);
  84                                 AddServices(newservices);
  85                                 newmod->init();
  86                                 newmod->ReadConfig(confstatus);
  87
  88                                 Version v = newmod->GetVersion();
  89                                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, "New module introduced: %s (Module version %s)%s",
  90                                         filename.c_str(), version.c_str(), (!(v.Flags & VF_VENDOR) ? " [3rd Party]" : " [Vendor]"));
  91                         }
  92                 }
  93                 else
  94                 {
  95                         LastModuleError = "Unable to load " + filename + ": " + newhandle->LastError();
  96                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
  97                         delete newhandle;
  98                         return false;
  99                 }
 100         }
 101         catch (CoreException& modexcept)
 102         {
 103                 this->NewServices = NULL;
 104
 105                 // failure in module constructor
 106                 if (newmod)
 107                 {
 108                         DoSafeUnload(newmod);
 109                         ServerInstance->GlobalCulls.AddItem(newhandle);
 110                 }
 111                 else
 112                         delete newhandle;
 113                 LastModuleError = "Unable to load " + filename + ": " + modexcept.GetReason();
 114                 ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, LastModuleError);
 115                 return false;
 116         }
 117
 118         if (defer)
 119                 return true;
 120
 121         FOREACH_MOD(OnLoadModule, (newmod));
 122         PrioritizeHooks();
 123         ServerInstance->ISupport.Build();
 124         return true;
 125 }
 126
 127 /* We must load the modules AFTER initializing the socket engine, now */
 128 void ModuleManager::LoadCoreModules(std::map<std::string, ServiceList>& servicemap)
 129 {
 130         std::cout << std::endl << "Loading core commands";
 131         fflush(stdout);
 132
 133         DIR* library = opendir(ServerInstance->Config->Paths.Module.c_str());
 134         if (library)
 135         {
 136                 dirent* entry = NULL;
 137                 while (0 != (entry = readdir(library)))
 138                 {
 139                         if (InspIRCd::Match(entry->d_name, "cmd_*.so", ascii_case_insensitive_map))
 140                         {
 141                                 std::cout << ".";
 142                                 fflush(stdout);
 143
 144                                 this->NewServices = &servicemap[entry->d_name];
 145
 146                                 if (!Load(entry->d_name, true))
 147                                 {
 148                                         ServerInstance->Logs->Log("MODULE", LOG_DEFAULT, this->LastError());
 149                                         std::cout << std::endl << "[" << con_red << "*" << con_reset << "] " << this->LastError() << std::endl << std::endl;
 150                                         ServerInstance->Exit(EXIT_STATUS_MODULE);
 151                                 }
 152                         }
 153                 }
 154                 closedir(library);
 155                 std::cout << std::endl;
 156         }
 157 }
 158
 159 #endif