src/modules/m_passforward.cpp

   1 /*
   2  * InspIRCd -- Internet Relay Chat Daemon
   3  *
   4  *   Copyright (C) 2019 linuxdaemon <linuxdaemon.irc@gmail.com>
   5  *   Copyright (C) 2014 Googolplexed <googol@googolplexed.net>
   6  *   Copyright (C) 2013, 2018, 2020 Sadie Powell <sadie@witchery.services>
   7  *   Copyright (C) 2012-2014, 2018 Attila Molnar <attilamolnar@hush.com>
   8  *   Copyright (C) 2012 Robby <robby@chatbelgie.be>
   9  *   Copyright (C) 2012 Boleslaw Tokarski <boleslaw.tokarski@tieto.com>
  10  *   Copyright (C) 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 "modules/account.h"
  28
  29 class ModulePassForward : public Module
  30 {
  31         std::string nickrequired, forwardmsg, forwardcmd;
  32
  33  public:
  34         Version GetVersion() CXX11_OVERRIDE
  35         {
  36                 return Version("Allows the /PASS password to be forwarded to a services pseudoclient such as NickServ.", VF_VENDOR);
  37         }
  38
  39         void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
  40         {
  41                 ConfigTag* tag = ServerInstance->Config->ConfValue("passforward");
  42                 nickrequired = tag->getString("nick", "NickServ");
  43                 forwardmsg = tag->getString("forwardmsg", "NOTICE $nick :*** Forwarding PASS to $nickrequired");
  44                 forwardcmd = tag->getString("cmd", "SQUERY $nickrequired :IDENTIFY $pass", 1);
  45         }
  46
  47         void FormatStr(std::string& result, const std::string& format, const LocalUser* user)
  48         {
  49                 for (unsigned int i = 0; i < format.length(); i++)
  50                 {
  51                         char c = format[i];
  52                         if (c == '$')
  53                         {
  54                                 if (!format.compare(i, 13, "$nickrequired", 13))
  55                                 {
  56                                         result.append(nickrequired);
  57                                         i += 12;
  58                                 }
  59                                 else if (!format.compare(i, 5, "$nick", 5))
  60                                 {
  61                                         result.append(user->nick);
  62                                         i += 4;
  63                                 }
  64                                 else if (!format.compare(i, 5, "$user", 5))
  65                                 {
  66                                         result.append(user->ident);
  67                                         i += 4;
  68                                 }
  69                                 else if (!format.compare(i, 5, "$pass", 5))
  70                                 {
  71                                         result.append(user->password);
  72                                         i += 4;
  73                                 }
  74                                 else
  75                                         result.push_back(c);
  76                         }
  77                         else
  78                                 result.push_back(c);
  79                 }
  80         }
  81
  82         void OnPostConnect(User* ruser) CXX11_OVERRIDE
  83         {
  84                 LocalUser* user = IS_LOCAL(ruser);
  85                 if (!user || user->password.empty())
  86                         return;
  87
  88                 // If the connect class requires a password, don't forward it
  89                 if (!user->MyClass->config->getString("password").empty())
  90                         return;
  91
  92                 AccountExtItem* actext = GetAccountExtItem();
  93                 if (actext && actext->get(user))
  94                 {
  95                         // User is logged in already (probably via SASL) don't forward the password
  96                         return;
  97                 }
  98
  99                 if (!nickrequired.empty())
 100                 {
 101                         /* Check if nick exists and its server is ulined */
 102                         User* u = ServerInstance->FindNick(nickrequired);
 103                         if (!u || !u->server->IsULine())
 104                                 return;
 105                 }
 106
 107                 std::string tmp;
 108                 if (!forwardmsg.empty())
 109                 {
 110                         FormatStr(tmp, forwardmsg, user);
 111                         ServerInstance->Parser.ProcessBuffer(user, tmp);
 112                         tmp.clear();
 113                 }
 114
 115                 FormatStr(tmp, forwardcmd, user);
 116                 ServerInstance->Parser.ProcessBuffer(user, tmp);
 117         }
 118 };
 119
 120 MODULE_INIT(ModulePassForward)