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 #include "cmd_oper.h"
  38
  39 /* $ModDesc: Allows storage of oper credentials in an SQL table */
  40
  41 /* Required for the FOREACH_MOD alias (OnOper event) */
  42 extern int MODCOUNT;
  43 extern ServerConfig* Config;
  44 extern std::vector<Module*> modules;
  45 extern std::vector<ircd_module*> factory;
  46
  47 Server *Srv;
  48
  49 class ModuleSQLOper : public Module
  50 {
  51         ConfigReader* Conf;
  52         unsigned long dbid;
  53         Module* SQLModule;
  54
  55  public:
  56         bool ReadConfig()
  57         {
  58                 dbid = Conf->ReadInteger("sqloper","dbid",0,true);      // database id of a database configured in m_sql (see m_sql config)
  59                 SQLModule = Srv->FindModule("m_sql.so");
  60                 if (!SQLModule)
  61                         Srv->Log(DEFAULT,"WARNING: m_sqloper.so could not initialize because m_sql.so is not loaded. Load the module and rehash your server.");
  62                 return (SQLModule);
  63         }
  64
  65         ModuleSQLOper(Server* Me)
  66                 : Module::Module(Me)
  67         {
  68                 Srv = Me;
  69                 Conf = new ConfigReader();
  70                 ReadConfig();
  71         }
  72
  73         virtual void OnRehash(std::string parameter)
  74         {
  75                 delete Conf;
  76                 Conf = new ConfigReader();
  77                 ReadConfig();
  78         }
  79
  80         void Implements(char* List)
  81         {
  82                 List[I_OnRehash] = List[I_OnPreCommand] = 1;
  83         }
  84
  85         virtual int OnPreCommand(std::string command, char **parameters, int pcnt, userrec *user, bool validated)
  86         {
  87                 if ((command == "OPER") && (validated))
  88                 {
  89                         if (LookupOper(parameters[0],parameters[1],user))
  90                                 return 1;
  91                 }
  92                 return 0;
  93         }
  94
  95         bool LookupOper(std::string username, std::string password, userrec* user)
  96         {
  97                 bool found = false;
  98
  99                 // is the sql module loaded? If not, we don't attempt to do anything.
 100                 if (!SQLModule)
 101                         return false;
 102
 103                 // sanitize the password (we dont want any mysql insertion exploits!)
 104                 std::string temp = "";
 105                 for (unsigned int q = 0; q < password.length(); q++)
 106                 {
 107                         if (password[q] == '\'')
 108                         {
 109                                 temp = temp + "\'";
 110                         }
 111                         else if (password[q] == '"')
 112                         {
 113                                 temp = temp + "\\\"";
 114                         }
 115                         else temp = temp + password[q];
 116                 }
 117                 password = temp;
 118                 temp = "";
 119                 for (unsigned int v = 0; v < username.length(); v++)
 120                 {
 121                         if (username[v] == '\'')
 122                         {
 123                                 temp = temp + "\'";
 124                         }
 125                         if (username[v] == '"')
 126                         {
 127                                 temp = temp + "\\\"";
 128                         }
 129                         else temp = temp + username[v];
 130                 }
 131                 username = temp;
 132
 133                 // Create a request containing the SQL query and send it to m_sql.so
 134                 SQLRequest* query = new SQLRequest(SQL_RESULT,dbid,"SELECT username,password,hostname,type FROM ircd_opers WHERE username='"+username+"' AND password=md5('"+password+"')");
 135                 Request queryrequest((char*)query, this, SQLModule);
 136                 SQLResult* result = (SQLResult*)queryrequest.Send();
 137
 138                 // Did we get "OK" as a result?
 139                 if (result->GetType() == SQL_OK)
 140                 {
 141                         Srv->Log(DEBUG,"An SQL based oper exists");
 142                         // if we did, this means we may now request a row... there should be only one row for each user, so,
 143                         // we don't need to loop to fetch multiple rows.
 144                         SQLRequest* rowrequest = new SQLRequest(SQL_ROW,dbid,"");
 145                         Request rowquery((char*)rowrequest, this, SQLModule);
 146                         SQLResult* rowresult = (SQLResult*)rowquery.Send();
 147
 148                         // did we get a row? If we did, we can now do something with the fields
 149                         if (rowresult->GetType() == SQL_ROW)
 150                         {
 151                                 if (rowresult->GetField("username") == username)
 152                                 {
 153                                         found = true;
 154                                         // oper up the user.
 155                                         for (int j =0; j < Conf->Enumerate("type"); j++)
 156                                         {
 157                                                 std::string TypeName = Conf->ReadValue("type","name",j);
 158                                                 Srv->Log(DEBUG,"Scanning opertype: "+TypeName);
 159                                                 std::string pattern = std::string(user->ident) + "@" + std::string(user->host);
 160                                                 if ((TypeName == rowresult->GetField("type")) && (OneOfMatches(pattern,rowresult->GetField("hostname"))))
 161                                                 {
 162                                                         Srv->Log(DEBUG,"Host and type match: "+TypeName+" "+rowresult->GetField("type"));
 163                                                         /* found this oper's opertype */
 164                                                         std::string HostName = Conf->ReadValue("type","host",j);
 165                                                         if (HostName != "")
 166                                                                 Srv->ChangeHost(user,HostName);
 167                                                         strlcpy(user->oper,rowresult->GetField("type").c_str(),NICKMAX);
 168                                                         WriteOpers("*** %s (%s@%s) is now an IRC operator of type %s",user->nick,user->ident,user->host,rowresult->GetField("type").c_str());
 169                                                         WriteServ(user->fd,"381 %s :You are now an IRC operator of type %s",user->nick,rowresult->GetField("type").c_str());
 170                                                         if (!strchr(user->modes,'o'))
 171                                                         {
 172                                                                 strcat(user->modes,"o");
 173                                                                 WriteServ(user->fd,"MODE %s :+o",user->nick);
 174                                                                 FOREACH_MOD(I_OnOper,OnOper(user,rowresult->GetField("type")));
 175                                                                 AddOper(user);
 176                                                                 FOREACH_MOD(I_OnPostOper,OnPostOper(user,rowresult->GetField("type")));
 177                                                                 log(DEFAULT,"OPER: %s!%s@%s opered as type: %s",user->nick,user->ident,user->host,rowresult->GetField("type").c_str());
 178                                                         }
 179                                                         break;
 180                                                 }
 181                                         }
 182
 183                                 }
 184                                 delete rowresult;
 185                         }
 186                         else
 187                         {
 188                                 // we didn't have a row.
 189                                 found = false;
 190                         }
 191                         delete rowrequest;
 192                         delete result;
 193                 }
 194                 else
 195                 {
 196                         // the query was bad
 197                         found = false;
 198                 }
 199                 query->SetQueryType(SQL_DONE);
 200                 query->SetConnID(dbid);
 201                 Request donerequest((char*)query, this, SQLModule);
 202                 donerequest.Send();
 203                 delete query;
 204                 return found;
 205         }
 206
 207         virtual ~ModuleSQLOper()
 208         {
 209                 delete Conf;
 210         }
 211
 212         virtual Version GetVersion()
 213         {
 214                 return Version(1,0,0,1,VF_VENDOR);
 215         }
 216
 217 };
 218
 219 class ModuleSQLOperFactory : public ModuleFactory
 220 {
 221  public:
 222         ModuleSQLOperFactory()
 223         {
 224         }
 225
 226         ~ModuleSQLOperFactory()
 227         {
 228         }
 229
 230         virtual Module * CreateModule(Server* Me)
 231         {
 232                 return new ModuleSQLOper(Me);
 233         }
 234
 235 };
 236
 237
 238 extern "C" void * init_module( void )
 239 {
 240         return new ModuleSQLOperFactory;
 241 }
 242