src/modules/extra/m_sqloper.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2004 ChatSpike-Dev.
   6  *                       E-mail:
   7  *                <brain@chatspike.net>
   8  *                <Craig@chatspike.net>
   9  *
  10  * Written by Craig Edwards, Craig McLure, and others.
  11  * This program is free but copyrighted software; see
  12  *            the file COPYING for details.
  13  *
  14  * ---------------------------------------------------
  15  */
  16
  17 using namespace std;
  18
  19 #include <stdio.h>
  20 #include <string>
  21 #include <stdlib.h>
  22 #include <time.h>
  23 #include <sys/types.h>
  24 #include <sys/socket.h>
  25 #include <sys/time.h>
  26 #include <string.h>
  27 #include <unistd.h>
  28 #include <errno.h>
  29 #include <fcntl.h>
  30 #include <poll.h>
  31 #include "users.h"
  32 #include "channels.h"
  33 #include "modules.h"
  34 #include "inspircd.h"
  35 #include "helperfuncs.h"
  36 #include "m_sql.h"
  37
  38 /* $ModDesc: Allows storage of oper credentials in an SQL table */
  39
  40 /* Required for the FOREACH_MOD alias (OnOper event) */
  41 extern int MODCOUNT;
  42 extern std::vector<Module*> modules;
  43 extern std::vector<ircd_module*> factory;
  44
  45 Server *Srv;
  46
  47 class ModuleSQLOper : public Module
  48 {
  49         ConfigReader* Conf;
  50         unsigned long dbid;
  51         Module* SQLModule;
  52
  53  public:
  54         bool ReadConfig()
  55         {
  56                 dbid = Conf->ReadInteger("sqloper","dbid",0,true);      // database id of a database configured in m_sql (see m_sql config)
  57                 SQLModule = Srv->FindModule("m_sql.so");
  58                 if (!SQLModule)
  59                         Srv->Log(DEFAULT,"WARNING: m_sqloper.so could not initialize because m_sql.so is not loaded. Load the module and rehash your server.");
  60                 return (SQLModule);
  61         }
  62
  63         ModuleSQLOper(Server* Me)
  64                 : Module::Module(Me)
  65         {
  66                 Srv = Me;
  67                 Conf = new ConfigReader();
  68                 ReadConfig();
  69         }
  70
  71         virtual void OnRehash(std::string parameter)
  72         {
  73                 delete Conf;
  74                 Conf = new ConfigReader();
  75                 ReadConfig();
  76         }
  77
  78         void Implements(char* List)
  79         {
  80                 List[I_OnRehash] = List[I_OnPreCommand] = 1;
  81         }
  82
  83         virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated)
  84         {
  85                 if ((command == "OPER") && (validated))
  86                 {
  87                         if (LookupOper(parameters[0],parameters[1],user))
  88                                 return 1;
  89                 }
  90                 return 0;
  91         }
  92
  93         bool LookupOper(std::string username, std::string password, userrec* user)
  94         {
  95                 bool found = false;
  96
  97                 // is the sql module loaded? If not, we don't attempt to do anything.
  98                 if (!SQLModule)
  99                         return false;
 100
 101                 // sanitize the password (we dont want any mysql insertion exploits!)
 102                 std::string temp = "";
 103                 for (unsigned int q = 0; q < password.length(); q++)
 104                 {
 105                         if (password[q] == '\'')
 106                         {
 107                                 temp = temp + "\'";
 108                         }
 109                         else if (password[q] == '"')
 110                         {
 111                                 temp = temp + "\\\"";
 112                         }
 113                         else temp = temp + password[q];
 114                 }
 115                 password = temp;
 116                 temp = "";
 117                 for (unsigned int v = 0; v < username.length(); v++)
 118                 {
 119                         if (username[v] == '\'')
 120                         {
 121                                 temp = temp + "\'";
 122                         }
 123                         if (username[v] == '"')
 124                         {
 125                                 temp = temp + "\\\"";
 126                         }
 127                         else temp = temp + username[v];
 128                 }
 129                 username = temp;
 130
 131                 // Create a request containing the SQL query and send it to m_sql.so
 132                 SQLRequest* query = new SQLRequest(SQL_RESULT,dbid,"SELECT username,password,hostname,type FROM ircd_opers WHERE username='"+username+"' AND password=md5('"+password+"')");
 133                 Request queryrequest((char*)query, this, SQLModule);
 134                 SQLResult* result = (SQLResult*)queryrequest.Send();
 135
 136                 // Did we get "OK" as a result?
 137                 if (result->GetType() == SQL_OK)
 138                 {
 139                         Srv->Log(DEBUG,"An SQL based oper exists");
 140                         // if we did, this means we may now request a row... there should be only one row for each user, so,
 141                         // we don't need to loop to fetch multiple rows.
 142                         SQLRequest* rowrequest = new SQLRequest(SQL_ROW,dbid,"");
 143                         Request rowquery((char*)rowrequest, this, SQLModule);
 144                         SQLResult* rowresult = (SQLResult*)rowquery.Send();
 145
 146                         // did we get a row? If we did, we can now do something with the fields
 147                         if (rowresult->GetType() == SQL_ROW)
 148                         {
 149                                 if (rowresult->GetField("username") == username)
 150                                 {
 151                                         found = true;
 152                                         // oper up the user.
 153                                         for (int j =0; j < Conf->Enumerate("type"); j++)
 154                                         {
 155                                                 std::string TypeName = Conf->ReadValue("type","name",j);
 156                                                 std::string pattern = std::string(user->ident) + "@" + std::string(user->host);
 157                                                 if ((TypeName == rowresult->GetField("type")) && (Srv->MatchText(pattern,rowresult->GetField("hostname"))));
 158                                                 {
 159                                                         /* found this oper's opertype */
 160                                                         std::string HostName = Conf->ReadValue("type","host",j);
 161                                                         if (HostName != "")
 162                                                                 Srv->ChangeHost(user,HostName);
 163                                                         strlcpy(user->oper,TypeName.c_str(),NICKMAX);
 164                                                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,rowresult->GetField("type").c_str());
 165                                                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,rowresult->GetField("type").c_str());
 166                                                         if (!strchr(user->modes,'o'))
 167                                                         {
 168                                                                 strcat(user->modes,"o");
 169                                                                 WriteServ(user->fd,"MODE %s :+o",user->nick);
 170                                                                 FOREACH_MOD(I_OnOper,OnOper(user,rowresult->GetField("type")));
 171                                                                 AddOper(user);
 172                                                                 log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,rowresult->GetField("type").c_str());
 173                                                         }
 174                                                         break;
 175                                                 }
 176                                         }
 177
 178                                 }
 179                                 delete rowresult;
 180                         }
 181                         else
 182                         {
 183                                 // we didn't have a row.
 184                                 found = false;
 185                         }
 186                         delete rowrequest;
 187                         delete result;
 188                 }
 189                 else
 190                 {
 191                         // the query was bad
 192                         found = false;
 193                 }
 194                 query->SetQueryType(SQL_DONE);
 195                 query->SetConnID(dbid);
 196                 Request donerequest((char*)query, this, SQLModule);
 197                 donerequest.Send();
 198                 delete query;
 199                 return found;
 200         }
 201
 202         virtual ~ModuleSQLOper()
 203         {
 204                 delete Conf;
 205         }
 206
 207         virtual Version GetVersion()
 208         {
 209                 return Version(1,0,0,1,VF_VENDOR);
 210         }
 211
 212 };
 213
 214 class ModuleSQLOperFactory : public ModuleFactory
 215 {
 216  public:
 217         ModuleSQLOperFactory()
 218         {
 219         }
 220
 221         ~ModuleSQLOperFactory()
 222         {
 223         }
 224
 225         virtual Module * CreateModule(Server* Me)
 226         {
 227                 return new ModuleSQLOper(Me);
 228         }
 229
 230 };
 231
 232
 233 extern "C" void * init_module( void )
 234 {
 235         return new ModuleSQLOperFactory;
 236 }
 237