src/configreader.cpp

   1 /*       +------------------------------------+
   2  *       | Inspire Internet Relay Chat Daemon |
   3  *       +------------------------------------+
   4  *
   5  *  InspIRCd is copyright (C) 2002-2006 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 #include "inspircd_config.h"
  18 #include "configreader.h"
  19 #include <string>
  20 #include <sstream>
  21 #include <iostream>
  22 #include <fstream>
  23 #include "message.h"
  24 #include "inspircd.h"
  25 #include "inspstring.h"
  26 #include "helperfuncs.h"
  27 #include "userprocess.h"
  28 #include "xline.h"
  29
  30 extern time_t TIME;
  31
  32 extern int MODCOUNT;
  33 extern std::vector<Module*> modules;
  34 extern std::vector<ircd_module*> factory;
  35
  36 using irc::sockets::BindPorts;
  37
  38 std::vector<std::string> old_module_names, new_module_names, added_modules, removed_modules;
  39
  40 ServerConfig::ServerConfig(InspIRCd* Instance) : ServerInstance(Instance)
  41 {
  42         this->ClearStack();
  43         *TempDir = *ServerName = *Network = *ServerDesc = *AdminName = '\0';
  44         *HideWhoisServer = *AdminEmail = *AdminNick = *diepass = *restartpass = '\0';
  45         *CustomVersion = *motd = *rules = *PrefixQuit = *DieValue = *DNSServer = '\0';
  46         *OperOnlyStats = *ModPath = *MyExecutable = *DisabledCommands = *PID = '\0';
  47         log_file = NULL;
  48         NoUserDns = forcedebug = OperSpyWhois = nofork = HideBans = HideSplits = false;
  49         writelog = AllowHalfop = true;
  50         dns_timeout = DieDelay = 5;
  51         MaxTargets = 20;
  52         NetBufferSize = 10240;
  53         SoftLimit = MAXCLIENTS;
  54         MaxConn = SOMAXCONN;
  55         MaxWhoResults = 100;
  56         debugging = 0;
  57         LogLevel = DEFAULT;
  58         maxbans.clear();
  59 }
  60
  61 void ServerConfig::ClearStack()
  62 {
  63         include_stack.clear();
  64 }
  65
  66 Module* ServerConfig::GetIOHook(int port)
  67 {
  68         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  69         return (x != IOHookModule.end() ? x->second : NULL);
  70 }
  71
  72 bool ServerConfig::AddIOHook(int port, Module* iomod)
  73 {
  74         if (!GetIOHook(port))
  75         {
  76                 IOHookModule[port] = iomod;
  77                 return true;
  78         }
  79         else
  80         {
  81                 ModuleException err("Port already hooked by another module");
  82                 throw(err);
  83                 return false;
  84         }
  85 }
  86
  87 bool ServerConfig::DelIOHook(int port)
  88 {
  89         std::map<int,Module*>::iterator x = IOHookModule.find(port);
  90         if (x != IOHookModule.end())
  91         {
  92                 IOHookModule.erase(x);
  93                 return true;
  94         }
  95         return false;
  96 }
  97
  98 bool ServerConfig::CheckOnce(char* tag, bool bail, userrec* user)
  99 {
 100         int count = ConfValueEnum(this->config_data, tag);
 101
 102         if (count > 1)
 103         {
 104                 if (bail)
 105                 {
 106                         printf("There were errors in your configuration:\nYou have more than one <%s> tag, this is not permitted.\n",tag);
 107                         Exit(0);
 108                 }
 109                 else
 110                 {
 111                         if (user)
 112                         {
 113                                 user->WriteServ("There were errors in your configuration:");
 114                                 user->WriteServ("You have more than one <%s> tag, this is not permitted.\n",tag);
 115                         }
 116                         else
 117                         {
 118                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 119                                 ServerInstance->WriteOpers("You have more than one <%s> tag, this is not permitted.\n",tag);
 120                         }
 121                 }
 122                 return false;
 123         }
 124         if (count < 1)
 125         {
 126                 if (bail)
 127                 {
 128                         printf("There were errors in your configuration:\nYou have not defined a <%s> tag, this is required.\n",tag);
 129                         Exit(0);
 130                 }
 131                 else
 132                 {
 133                         if (user)
 134                         {
 135                                 user->WriteServ("There were errors in your configuration:");
 136                                 user->WriteServ("You have not defined a <%s> tag, this is required.",tag);
 137                         }
 138                         else
 139                         {
 140                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 141                                 ServerInstance->WriteOpers("You have not defined a <%s> tag, this is required.",tag);
 142                         }
 143                 }
 144                 return false;
 145         }
 146         return true;
 147 }
 148
 149 bool NoValidation(ServerConfig* conf, const char* tag, const char* value, void* data)
 150 {
 151         log(DEBUG,"No validation for <%s:%s>",tag,value);
 152         return true;
 153 }
 154
 155 bool ValidateTempDir(ServerConfig* conf, const char* tag, const char* value, void* data)
 156 {
 157         char* x = (char*)data;
 158         if (!*x)
 159                 strlcpy(x,"/tmp",1024);
 160         return true;
 161 }
 162
 163 bool ValidateMaxTargets(ServerConfig* conf, const char* tag, const char* value, void* data)
 164 {
 165         int* x = (int*)data;
 166         if ((*x < 0) || (*x > 31))
 167         {
 168                 log(DEFAULT,"WARNING: <options:maxtargets> value is greater than 31 or less than 0, set to 20.");
 169                 *x = 20;
 170         }
 171         return true;
 172 }
 173
 174 bool ValidateSoftLimit(ServerConfig* conf, const char* tag, const char* value, void* data)
 175 {
 176         int* x = (int*)data;
 177         if ((*x < 1) || (*x > MAXCLIENTS))
 178         {
 179                 log(DEFAULT,"WARNING: <options:softlimit> value is greater than %d or less than 0, set to %d.",MAXCLIENTS,MAXCLIENTS);
 180                 *x = MAXCLIENTS;
 181         }
 182         return true;
 183 }
 184
 185 bool ValidateMaxConn(ServerConfig* conf, const char* tag, const char* value, void* data)
 186 {
 187         int* x = (int*)data;
 188         if (*x > SOMAXCONN)
 189                 log(DEFAULT,"WARNING: <options:somaxconn> value may be higher than the system-defined SOMAXCONN value!");
 190         if (!*x)
 191                 *x = SOMAXCONN;
 192         return true;
 193 }
 194
 195 bool ValidateDnsTimeout(ServerConfig* conf, const char* tag, const char* value, void* data)
 196 {
 197         int* x = (int*)data;
 198         if (!*x)
 199                 *x = 5;
 200         return true;
 201 }
 202
 203 bool InitializeDisabledCommands(const char* data, InspIRCd* ServerInstance)
 204 {
 205         std::stringstream dcmds(data);
 206         std::string thiscmd;
 207
 208         /* Enable everything first */
 209         for (nspace::hash_map<std::string,command_t*>::iterator x = ServerInstance->Parser->cmdlist.begin(); x != ServerInstance->Parser->cmdlist.end(); x++)
 210                 x->second->Disable(false);
 211
 212         /* Now disable all the ones which the user wants disabled */
 213         while (dcmds >> thiscmd)
 214         {
 215                 nspace::hash_map<std::string,command_t*>::iterator cm = ServerInstance->Parser->cmdlist.find(thiscmd);
 216                 if (cm != ServerInstance->Parser->cmdlist.end())
 217                 {
 218                         log(DEBUG,"Disabling command '%s'",cm->second->command.c_str());
 219                         cm->second->Disable(true);
 220                 }
 221         }
 222         return true;
 223 }
 224
 225 bool ValidateDnsServer(ServerConfig* conf, const char* tag, const char* value, void* data)
 226 {
 227         char* x = (char*)data;
 228         if (!*x)
 229         {
 230                 // attempt to look up their nameserver from /etc/resolv.conf
 231                 log(DEFAULT,"WARNING: <dns:server> not defined, attempting to find working server in /etc/resolv.conf...");
 232                 ifstream resolv("/etc/resolv.conf");
 233                 std::string nameserver;
 234                 bool found_server = false;
 235
 236                 if (resolv.is_open())
 237                 {
 238                         while (resolv >> nameserver)
 239                         {
 240                                 if ((nameserver == "nameserver") && (!found_server))
 241                                 {
 242                                         resolv >> nameserver;
 243                                         strlcpy(x,nameserver.c_str(),MAXBUF);
 244                                         found_server = true;
 245                                         log(DEFAULT,"<dns:server> set to '%s' as first resolver in /etc/resolv.conf.",nameserver.c_str());
 246                                 }
 247                         }
 248
 249                         if (!found_server)
 250                         {
 251                                 log(DEFAULT,"/etc/resolv.conf contains no viable nameserver entries! Defaulting to nameserver '127.0.0.1'!");
 252                                 strlcpy(x,"127.0.0.1",MAXBUF);
 253                         }
 254                 }
 255                 else
 256                 {
 257                         log(DEFAULT,"/etc/resolv.conf can't be opened! Defaulting to nameserver '127.0.0.1'!");
 258                         strlcpy(x,"127.0.0.1",MAXBUF);
 259                 }
 260         }
 261         return true;
 262 }
 263
 264 bool ValidateModPath(ServerConfig* conf, const char* tag, const char* value, void* data)
 265 {
 266         char* x = (char*)data;
 267         if (!*x)
 268                 strlcpy(x,MOD_PATH,MAXBUF);
 269         return true;
 270 }
 271
 272
 273 bool ValidateServerName(ServerConfig* conf, const char* tag, const char* value, void* data)
 274 {
 275         char* x = (char*)data;
 276         if (!strchr(x,'.'))
 277         {
 278                 log(DEFAULT,"WARNING: <server:name> '%s' is not a fully-qualified domain name. Changed to '%s%c'",x,x,'.');
 279                 charlcat(x,'.',MAXBUF);
 280         }
 281         //strlower(x);
 282         return true;
 283 }
 284
 285 bool ValidateNetBufferSize(ServerConfig* conf, const char* tag, const char* value, void* data)
 286 {
 287         if ((!conf->NetBufferSize) || (conf->NetBufferSize > 65535) || (conf->NetBufferSize < 1024))
 288         {
 289                 log(DEFAULT,"No NetBufferSize specified or size out of range, setting to default of 10240.");
 290                 conf->NetBufferSize = 10240;
 291         }
 292         return true;
 293 }
 294
 295 bool ValidateMaxWho(ServerConfig* conf, const char* tag, const char* value, void* data)
 296 {
 297         if ((!conf->MaxWhoResults) || (conf->MaxWhoResults > 65535) || (conf->MaxWhoResults < 1))
 298         {
 299                 log(DEFAULT,"No MaxWhoResults specified or size out of range, setting to default of 128.");
 300                 conf->MaxWhoResults = 128;
 301         }
 302         return true;
 303 }
 304
 305 bool ValidateLogLevel(ServerConfig* conf, const char* tag, const char* value, void* data)
 306 {
 307         const char* dbg = (const char*)data;
 308         conf->LogLevel = DEFAULT;
 309         if (!strcmp(dbg,"debug"))
 310         {
 311                 conf->LogLevel = DEBUG;
 312                 conf->debugging = 1;
 313         }
 314         else if (!strcmp(dbg,"verbose"))
 315                 conf->LogLevel = VERBOSE;
 316         else if (!strcmp(dbg,"default"))
 317                 conf->LogLevel = DEFAULT;
 318         else if (!strcmp(dbg,"sparse"))
 319                 conf->LogLevel = SPARSE;
 320         else if (!strcmp(dbg,"none"))
 321                 conf->LogLevel = NONE;
 322         return true;
 323 }
 324
 325 bool ValidateMotd(ServerConfig* conf, const char* tag, const char* value, void* data)
 326 {
 327         conf->ReadFile(conf->MOTD,conf->motd);
 328         return true;
 329 }
 330
 331 bool ValidateRules(ServerConfig* conf, const char* tag, const char* value, void* data)
 332 {
 333         conf->ReadFile(conf->RULES,conf->rules);
 334         return true;
 335 }
 336
 337 /* Callback called before processing the first <connect> tag
 338  */
 339 bool InitConnect(ServerConfig* conf, const char* tag)
 340 {
 341         log(DEFAULT,"Reading connect classes...");
 342         conf->Classes.clear();
 343         return true;
 344 }
 345
 346 /* Callback called to process a single <connect> tag
 347  */
 348 bool DoConnect(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 349 {
 350         ConnectClass c;
 351         char* allow = (char*)values[0]; /* Yeah, there are a lot of values. Live with it. */
 352         char* deny = (char*)values[1];
 353         char* password = (char*)values[2];
 354         int* timeout = (int*)values[3];
 355         int* pingfreq = (int*)values[4];
 356         int* flood = (int*)values[5];
 357         int* threshold = (int*)values[6];
 358         int* sendq = (int*)values[7];
 359         int* recvq = (int*)values[8];
 360         int* localmax = (int*)values[9];
 361         int* globalmax = (int*)values[10];
 362
 363         if (*allow)
 364         {
 365                 c.host = allow;
 366                 c.type = CC_ALLOW;
 367                 c.pass = password;
 368                 c.registration_timeout = *timeout;
 369                 c.pingtime = *pingfreq;
 370                 c.flood = *flood;
 371                 c.threshold = *threshold;
 372                 c.sendqmax = *sendq;
 373                 c.recvqmax = *recvq;
 374                 c.maxlocal = *localmax;
 375                 c.maxglobal = *globalmax;
 376
 377
 378                 if (c.maxlocal == 0)
 379                         c.maxlocal = 3;
 380                 if (c.maxglobal == 0)
 381                         c.maxglobal = 3;
 382                 if (c.threshold == 0)
 383                 {
 384                         c.threshold = 1;
 385                         c.flood = 999;
 386                         log(DEFAULT,"Warning: Connect allow line '%s' has no flood/threshold settings. Setting this tag to 999 lines in 1 second.",c.host.c_str());
 387                 }
 388                 if (c.sendqmax == 0)
 389                         c.sendqmax = 262114;
 390                 if (c.recvqmax == 0)
 391                         c.recvqmax = 4096;
 392                 if (c.registration_timeout == 0)
 393                         c.registration_timeout = 90;
 394                 if (c.pingtime == 0)
 395                         c.pingtime = 120;
 396                 conf->Classes.push_back(c);
 397         }
 398         else
 399         {
 400                 c.host = deny;
 401                 c.type = CC_DENY;
 402                 conf->Classes.push_back(c);
 403                 log(DEBUG,"Read connect class type DENY, host=%s",deny);
 404         }
 405
 406         return true;
 407 }
 408
 409 /* Callback called when there are no more <connect> tags
 410  */
 411 bool DoneConnect(ServerConfig* conf, const char* tag)
 412 {
 413         log(DEBUG,"DoneConnect called for tag: %s",tag);
 414         return true;
 415 }
 416
 417 /* Callback called before processing the first <uline> tag
 418  */
 419 bool InitULine(ServerConfig* conf, const char* tag)
 420 {
 421         conf->ulines.clear();
 422         return true;
 423 }
 424
 425 /* Callback called to process a single <uline> tag
 426  */
 427 bool DoULine(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 428 {
 429         char* server = (char*)values[0];
 430         log(DEBUG,"Read ULINE '%s'",server);
 431         conf->ulines.push_back(server);
 432         return true;
 433 }
 434
 435 /* Callback called when there are no more <uline> tags
 436  */
 437 bool DoneULine(ServerConfig* conf, const char* tag)
 438 {
 439         return true;
 440 }
 441
 442 /* Callback called before processing the first <module> tag
 443  */
 444 bool InitModule(ServerConfig* conf, const char* tag)
 445 {
 446         old_module_names.clear();
 447         new_module_names.clear();
 448         added_modules.clear();
 449         removed_modules.clear();
 450         for (std::vector<std::string>::iterator t = conf->module_names.begin(); t != conf->module_names.end(); t++)
 451         {
 452                 old_module_names.push_back(*t);
 453         }
 454         return true;
 455 }
 456
 457 /* Callback called to process a single <module> tag
 458  */
 459 bool DoModule(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 460 {
 461         char* modname = (char*)values[0];
 462         new_module_names.push_back(modname);
 463         return true;
 464 }
 465
 466 /* Callback called when there are no more <module> tags
 467  */
 468 bool DoneModule(ServerConfig* conf, const char* tag)
 469 {
 470         // now create a list of new modules that are due to be loaded
 471         // and a seperate list of modules which are due to be unloaded
 472         for (std::vector<std::string>::iterator _new = new_module_names.begin(); _new != new_module_names.end(); _new++)
 473         {
 474                 bool added = true;
 475
 476                 for (std::vector<std::string>::iterator old = old_module_names.begin(); old != old_module_names.end(); old++)
 477                 {
 478                         if (*old == *_new)
 479                                 added = false;
 480                 }
 481
 482                 if (added)
 483                         added_modules.push_back(*_new);
 484         }
 485
 486         for (std::vector<std::string>::iterator oldm = old_module_names.begin(); oldm != old_module_names.end(); oldm++)
 487         {
 488                 bool removed = true;
 489                 for (std::vector<std::string>::iterator newm = new_module_names.begin(); newm != new_module_names.end(); newm++)
 490                 {
 491                         if (*newm == *oldm)
 492                                 removed = false;
 493                 }
 494
 495                 if (removed)
 496                         removed_modules.push_back(*oldm);
 497         }
 498         return true;
 499 }
 500
 501 /* Callback called before processing the first <banlist> tag
 502  */
 503 bool InitMaxBans(ServerConfig* conf, const char* tag)
 504 {
 505         conf->maxbans.clear();
 506         return true;
 507 }
 508
 509 /* Callback called to process a single <banlist> tag
 510  */
 511 bool DoMaxBans(ServerConfig* conf, const char* tag, char** entries, void** values, int* types)
 512 {
 513         char* channel = (char*)values[0];
 514         int* limit = (int*)values[1];
 515         conf->maxbans[channel] = *limit;
 516         return true;
 517 }
 518
 519 /* Callback called when there are no more <banlist> tags.
 520  */
 521 bool DoneMaxBans(ServerConfig* conf, const char* tag)
 522 {
 523         return true;
 524 }
 525
 526 void ServerConfig::Read(bool bail, userrec* user)
 527 {
 528         char debug[MAXBUF];             /* Temporary buffer for debugging value */
 529         char* data[12];                 /* Temporary buffers for reading multiple occurance tags into */
 530         void* ptr[12];                  /* Temporary pointers for passing to callbacks */
 531         int r_i[12];                    /* Temporary array for casting */
 532         int rem = 0, add = 0;           /* Number of modules added, number of modules removed */
 533         std::ostringstream errstr;      /* String stream containing the error output */
 534
 535         /* These tags MUST occur and must ONLY occur once in the config file */
 536         static char* Once[] = { "server", "admin", "files", "power", "options", "pid", NULL };
 537
 538         /* These tags can occur ONCE or not at all */
 539         static InitialConfig Values[] = {
 540                 {"options",             "softlimit",                    &this->SoftLimit,               DT_INTEGER, ValidateSoftLimit},
 541                 {"options",             "somaxconn",                    &this->MaxConn,                 DT_INTEGER, ValidateMaxConn},
 542                 {"server",              "name",                         &this->ServerName,              DT_CHARPTR, ValidateServerName},
 543                 {"server",              "description",                  &this->ServerDesc,              DT_CHARPTR, NoValidation},
 544                 {"server",              "network",                      &this->Network,                 DT_CHARPTR, NoValidation},
 545                 {"admin",               "name",                         &this->AdminName,               DT_CHARPTR, NoValidation},
 546                 {"admin",               "email",                        &this->AdminEmail,              DT_CHARPTR, NoValidation},
 547                 {"admin",               "nick",                         &this->AdminNick,               DT_CHARPTR, NoValidation},
 548                 {"files",               "motd",                         &this->motd,                    DT_CHARPTR, ValidateMotd},
 549                 {"files",               "rules",                        &this->rules,                   DT_CHARPTR, ValidateRules},
 550                 {"power",               "diepass",                      &this->diepass,                 DT_CHARPTR, NoValidation},
 551                 {"power",               "pauseval",                     &this->DieDelay,                DT_INTEGER, NoValidation},
 552                 {"power",               "restartpass",                  &this->restartpass,             DT_CHARPTR, NoValidation},
 553                 {"options",             "prefixquit",                   &this->PrefixQuit,              DT_CHARPTR, NoValidation},
 554                 {"die",                 "value",                        &this->DieValue,                DT_CHARPTR, NoValidation},
 555                 {"options",             "loglevel",                     &debug,                         DT_CHARPTR, ValidateLogLevel},
 556                 {"options",             "netbuffersize",                &this->NetBufferSize,           DT_INTEGER, ValidateNetBufferSize},
 557                 {"options",             "maxwho",                       &this->MaxWhoResults,           DT_INTEGER, ValidateMaxWho},
 558                 {"options",             "allowhalfop",                  &this->AllowHalfop,             DT_BOOLEAN, NoValidation},
 559                 {"dns",                 "server",                       &this->DNSServer,               DT_CHARPTR, ValidateDnsServer},
 560                 {"dns",                 "timeout",                      &this->dns_timeout,             DT_INTEGER, ValidateDnsTimeout},
 561                 {"options",             "moduledir",                    &this->ModPath,                 DT_CHARPTR, ValidateModPath},
 562                 {"disabled",            "commands",                     &this->DisabledCommands,        DT_CHARPTR, NoValidation},
 563                 {"options",             "operonlystats",                &this->OperOnlyStats,           DT_CHARPTR, NoValidation},
 564                 {"options",             "customversion",                &this->CustomVersion,           DT_CHARPTR, NoValidation},
 565                 {"options",             "hidesplits",                   &this->HideSplits,              DT_BOOLEAN, NoValidation},
 566                 {"options",             "hidebans",                     &this->HideBans,                DT_BOOLEAN, NoValidation},
 567                 {"options",             "hidewhois",                    &this->HideWhoisServer,         DT_CHARPTR, NoValidation},
 568                 {"options",             "operspywhois",                 &this->OperSpyWhois,            DT_BOOLEAN, NoValidation},
 569                 {"options",             "tempdir",                      &this->TempDir,                 DT_CHARPTR, ValidateTempDir},
 570                 {"options",             "nouserdns",                    &this->NoUserDns,               DT_BOOLEAN, NoValidation},
 571                 {"options",             "syntaxhints",                  &this->SyntaxHints,             DT_BOOLEAN, NoValidation},
 572                 {"pid",                 "file",                         &this->PID,                     DT_CHARPTR, NoValidation},
 573                 {NULL}
 574         };
 575
 576         /* These tags can occur multiple times, and therefore they have special code to read them
 577          * which is different to the code for reading the singular tags listed above.
 578          */
 579         static MultiConfig MultiValues[] = {
 580
 581                 {"connect",
 582                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 583                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    NULL},
 584                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 585                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER},
 586                                 InitConnect, DoConnect, DoneConnect},
 587
 588                 {"uline",
 589                                 {"server",      NULL},
 590                                 {DT_CHARPTR},
 591                                 InitULine,DoULine,DoneULine},
 592
 593                 {"banlist",
 594                                 {"chan",        "limit",        NULL},
 595                                 {DT_CHARPTR,    DT_INTEGER},
 596                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 597
 598                 {"module",
 599                                 {"name",        NULL},
 600                                 {DT_CHARPTR},
 601                                 InitModule, DoModule, DoneModule},
 602
 603                 {"badip",
 604                                 {"reason",      "ipmask",       NULL},
 605                                 {DT_CHARPTR,    DT_CHARPTR},
 606                                 InitXLine, DoZLine, DoneXLine},
 607
 608                 {"badnick",
 609                                 {"reason",      "nick",         NULL},
 610                                 {DT_CHARPTR,    DT_CHARPTR},
 611                                 InitXLine, DoQLine, DoneXLine},
 612
 613                 {"badhost",
 614                                 {"reason",      "host",         NULL},
 615                                 {DT_CHARPTR,    DT_CHARPTR},
 616                                 InitXLine, DoKLine, DoneXLine},
 617
 618                 {"exception",
 619                                 {"reason",      "host",         NULL},
 620                                 {DT_CHARPTR,    DT_CHARPTR},
 621                                 InitXLine, DoELine, DoneXLine},
 622
 623                 {"type",
 624                                 {"name",        "classes",      NULL},
 625                                 {DT_CHARPTR,    DT_CHARPTR},
 626                                 InitTypes, DoType, DoneClassesAndTypes},
 627
 628                 {"class",
 629                                 {"name",        "commands",     NULL},
 630                                 {DT_CHARPTR,    DT_CHARPTR},
 631                                 InitClasses, DoClass, DoneClassesAndTypes},
 632
 633                 {NULL}
 634         };
 635
 636         include_stack.clear();
 637
 638         /* Load and parse the config file, if there are any errors then explode */
 639
 640         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 641         ConfigDataHash newconfig;
 642
 643         if (this->LoadConf(newconfig, CONFIG_FILE, errstr))
 644         {
 645                 /* If we succeeded, set the ircd config to the new one */
 646                 this->config_data = newconfig;
 647
 648 /*              int c = 1;
 649                 std::string last;
 650
 651                 for(ConfigDataHash::const_iterator i = this->config_data.begin(); i != this->config_data.end(); i++)
 652                 {
 653                         c = (i->first != last) ? 1 : c+1;
 654                         last = i->first;
 655
 656                         std::cout << "[" << i->first << " " << c << "/" << this->config_data.count(i->first) << "]" << std::endl;
 657
 658                         for(KeyValList::const_iterator j = i->second.begin(); j != i->second.end(); j++)
 659                                 std::cout << "\t" << j->first << " = " << j->second << std::endl;
 660
 661                         std::cout << "[/" << i->first << " " << c << "/" << this->config_data.count(i->first) << "]" << std::endl;
 662                 }
 663  */     }
 664         else
 665         {
 666                 log(DEFAULT, "There were errors in your configuration:\n%s", errstr.str().c_str());
 667
 668                 if (bail)
 669                 {
 670                         /* Unneeded because of the log() aboive? */
 671                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 672                         Exit(0);
 673                 }
 674                 else
 675                 {
 676                         std::string errors = errstr.str();
 677                         std::string::size_type start;
 678                         unsigned int prefixlen;
 679
 680                         start = 0;
 681                         /* ":ServerInstance->Config->ServerName NOTICE user->nick :" */
 682                         prefixlen = strlen(this->ServerName) + strlen(user->nick) + 11;
 683
 684                         if (user)
 685                         {
 686                                 user->WriteServ("NOTICE %s :There were errors in the configuration file:",user->nick);
 687
 688                                 while(start < errors.length())
 689                                 {
 690                                         user->WriteServ("NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 691                                         start += 510 - prefixlen;
 692                                 }
 693                         }
 694                         else
 695                         {
 696                                 ServerInstance->WriteOpers("There were errors in the configuration file:");
 697
 698                                 while(start < errors.length())
 699                                 {
 700                                         ServerInstance->WriteOpers(errors.substr(start, 360).c_str());
 701                                         start += 360;
 702                                 }
 703                         }
 704
 705                         return;
 706                 }
 707         }
 708
 709         /* Check we dont have more than one of singular tags, or any of them missing
 710          */
 711         for (int Index = 0; Once[Index]; Index++)
 712                 if (!CheckOnce(Once[Index],bail,user))
 713                         return;
 714
 715         /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 716          */
 717         for (int Index = 0; Values[Index].tag; Index++)
 718         {
 719                 int* val_i = (int*) Values[Index].val;
 720                 char* val_c = (char*) Values[Index].val;
 721
 722                 switch (Values[Index].datatype)
 723                 {
 724                         case DT_CHARPTR:
 725                                 /* Assuming MAXBUF here, potentially unsafe */
 726                                 ConfValue(this->config_data, Values[Index].tag, Values[Index].value, 0, val_c, MAXBUF);
 727                         break;
 728
 729                         case DT_INTEGER:
 730                                 ConfValueInteger(this->config_data, Values[Index].tag, Values[Index].value, 0, *val_i);
 731                         break;
 732
 733                         case DT_BOOLEAN:
 734                                 *val_i = ConfValueBool(this->config_data, Values[Index].tag, Values[Index].value, 0);
 735                         break;
 736
 737                         case DT_NOTHING:
 738                         break;
 739                 }
 740
 741                 Values[Index].validation_function(this, Values[Index].tag, Values[Index].value, Values[Index].val);
 742         }
 743
 744         /* Claim memory for use when reading multiple tags
 745          */
 746         for (int n = 0; n < 12; n++)
 747                 data[n] = new char[MAXBUF];
 748
 749         /* Read the multiple-tag items (class tags, connect tags, etc)
 750          * and call the callbacks associated with them. We have three
 751          * callbacks for these, a 'start', 'item' and 'end' callback.
 752          */
 753
 754         /* XXX - Make this use ConfValueInteger and so on */
 755         for (int Index = 0; MultiValues[Index].tag; Index++)
 756         {
 757                 MultiValues[Index].init_function(this, MultiValues[Index].tag);
 758
 759                 int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 760
 761                 for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 762                 {
 763                         for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 764                         {
 765                                 ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], tagnum, data[valuenum], MAXBUF);
 766
 767                                 switch (MultiValues[Index].datatype[valuenum])
 768                                 {
 769                                         case DT_CHARPTR:
 770                                                 ptr[valuenum] = data[valuenum];
 771                                         break;
 772                                         case DT_INTEGER:
 773                                                 r_i[valuenum] = atoi(data[valuenum]);
 774                                                 ptr[valuenum] = &r_i[valuenum];
 775                                         break;
 776                                         case DT_BOOLEAN:
 777                                                 r_i[valuenum] = ((*data[valuenum] == tolower('y')) || (*data[valuenum] == tolower('t')) || (*data[valuenum] == '1'));
 778                                                 ptr[valuenum] = &r_i[valuenum];
 779                                         break;
 780                                         default:
 781                                         break;
 782                                 }
 783                         }
 784                         MultiValues[Index].validation_function(this, MultiValues[Index].tag, (char**)MultiValues[Index].items, ptr, MultiValues[Index].datatype);
 785                 }
 786
 787                 MultiValues[Index].finish_function(this, MultiValues[Index].tag);
 788         }
 789
 790         /* Free any memory we claimed
 791          */
 792         for (int n = 0; n < 12; n++)
 793                 delete[] data[n];
 794
 795         // write once here, to try it out and make sure its ok
 796         ServerInstance->WritePID(this->PID);
 797
 798         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 799
 800         /* If we're rehashing, let's load any new modules, and unload old ones
 801          */
 802         if (!bail)
 803         {
 804                 ServerInstance->stats->BoundPortCount = BindPorts(false);
 805
 806                 if (!removed_modules.empty())
 807                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 808                         {
 809                                 if (ServerInstance->UnloadModule(removing->c_str()))
 810                                 {
 811                                         ServerInstance->WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 812
 813                                         if (user)
 814                                                 user->WriteServ("973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 815
 816                                         rem++;
 817                                 }
 818                                 else
 819                                 {
 820                                         if (user)
 821                                                 user->WriteServ("972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError());
 822                                 }
 823                         }
 824
 825                 if (!added_modules.empty())
 826                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 827                 {
 828                         if (ServerInstance->LoadModule(adding->c_str()))
 829                         {
 830                                 ServerInstance->WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 831
 832                                 if (user)
 833                                         user->WriteServ("975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 834
 835                                 add++;
 836                         }
 837                         else
 838                         {
 839                                 if (user)
 840                                         user->WriteServ("974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError());
 841                         }
 842                 }
 843
 844                 log(DEFAULT,"Successfully unloaded %lu of %lu modules and loaded %lu of %lu modules.",(unsigned long)rem,(unsigned long)removed_modules.size(),(unsigned long)add,(unsigned long)added_modules.size());
 845         }
 846 }
 847
 848 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
 849 {
 850         std::ifstream conf(filename);
 851         std::string line;
 852         char ch;
 853         long linenumber;
 854         bool in_tag;
 855         bool in_quote;
 856         bool in_comment;
 857
 858         linenumber = 1;
 859         in_tag = false;
 860         in_quote = false;
 861         in_comment = false;
 862
 863         /* Check if the file open failed first */
 864         if (!conf)
 865         {
 866                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
 867                 return false;
 868         }
 869
 870         /* Fix the chmod of the file to restrict it to the current user and group */
 871         chmod(filename,0600);
 872
 873         for (unsigned int t = 0; t < include_stack.size(); t++)
 874         {
 875                 if (std::string(filename) == include_stack[t])
 876                 {
 877                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
 878                         return false;
 879                 }
 880         }
 881
 882         /* It's not already included, add it to the list of files we've loaded */
 883         include_stack.push_back(filename);
 884
 885         /* Start reading characters... */
 886         while(conf.get(ch))
 887         {
 888                 /*
 889                  * Here we try and get individual tags on separate lines,
 890                  * this would be so easy if we just made people format
 891                  * their config files like that, but they don't so...
 892                  * We check for a '<' and then know the line is over when
 893                  * we get a '>' not inside quotes. If we find two '<' and
 894                  * no '>' then die with an error.
 895                  */
 896
 897                 if((ch == '#') && !in_quote)
 898                         in_comment = true;
 899
 900                 if(((ch == '\n') || (ch == '\r')) && in_quote)
 901                 {
 902                         errorstream << "Got a newline within a quoted section, this is probably a typo: " << filename << ":" << linenumber << std::endl;
 903                         return false;
 904                 }
 905
 906                 switch(ch)
 907                 {
 908                         case '\n':
 909                                 linenumber++;
 910                         case '\r':
 911                                 in_comment = false;
 912                         case '\0':
 913                                 continue;
 914                         case '\t':
 915                                 ch = ' ';
 916                 }
 917
 918                 if(in_comment)
 919                         continue;
 920
 921                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
 922                  * Note that this WILL NOT usually allow insertion of newlines,
 923                  * because a newline is two characters long. Use it primarily to
 924                  * insert the " symbol.
 925                  *
 926                  * Note that this also involves a further check when parsing the line,
 927                  * which can be found below.
 928                  */
 929                 if ((ch == '\\') && (in_quote) && (in_tag))
 930                 {
 931                         line += ch;
 932                         log(DEBUG,"Escape sequence in config line.");
 933                         char real_character;
 934                         if (conf.get(real_character))
 935                         {
 936                                 log(DEBUG,"Escaping %c", real_character);
 937                                 line += real_character;
 938                                 continue;
 939                         }
 940                         else
 941                         {
 942                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
 943                                 return false;
 944                         }
 945                 }
 946
 947                 line += ch;
 948
 949                 if(ch == '<')
 950                 {
 951                         if(in_tag)
 952                         {
 953                                 if(!in_quote)
 954                                 {
 955                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
 956                                         return false;
 957                                 }
 958                         }
 959                         else
 960                         {
 961                                 if(in_quote)
 962                                 {
 963                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
 964                                         return false;
 965                                 }
 966                                 else
 967                                 {
 968                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
 969                                         in_tag = true;
 970                                 }
 971                         }
 972                 }
 973                 else if(ch == '"')
 974                 {
 975                         if(in_tag)
 976                         {
 977                                 if(in_quote)
 978                                 {
 979                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
 980                                         in_quote = false;
 981                                 }
 982                                 else
 983                                 {
 984                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
 985                                         in_quote = true;
 986                                 }
 987                         }
 988                         else
 989                         {
 990                                 if(in_quote)
 991                                 {
 992                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
 993                                 }
 994                                 else
 995                                 {
 996                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
 997                                 }
 998                         }
 999                 }
1000                 else if(ch == '>')
1001                 {
1002                         if(!in_quote)
1003                         {
1004                                 if(in_tag)
1005                                 {
1006                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
1007                                         in_tag = false;
1008
1009                                         /*
1010                                          * If this finds an <include> then ParseLine can simply call
1011                                          * LoadConf() and load the included config into the same ConfigDataHash
1012                                          */
1013
1014                                         if(!this->ParseLine(target, line, linenumber, errorstream))
1015                                                 return false;
1016
1017                                         line.clear();
1018                                 }
1019                                 else
1020                                 {
1021                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
1022                                         return false;
1023                                 }
1024                         }
1025                 }
1026         }
1027
1028         return true;
1029 }
1030
1031 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1032 {
1033         return this->LoadConf(target, filename.c_str(), errorstream);
1034 }
1035
1036 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long linenumber, std::ostringstream &errorstream)
1037 {
1038         std::string tagname;
1039         std::string current_key;
1040         std::string current_value;
1041         KeyValList results;
1042         bool got_name;
1043         bool got_key;
1044         bool in_quote;
1045
1046         got_name = got_key = in_quote = false;
1047
1048         // std::cout << "ParseLine(data, '" << line << "', " << linenumber << ", stream)" << std::endl;
1049
1050         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1051         {
1052                 if(!got_name)
1053                 {
1054                         /* We don't know the tag name yet. */
1055
1056                         if(*c != ' ')
1057                         {
1058                                 if(*c != '<')
1059                                 {
1060                                         tagname += *c;
1061                                 }
1062                         }
1063                         else
1064                         {
1065                                 /* We got to a space, we should have the tagname now. */
1066                                 if(tagname.length())
1067                                 {
1068                                         got_name = true;
1069                                 }
1070                         }
1071                 }
1072                 else
1073                 {
1074                         /* We have the tag name */
1075                         if (!got_key)
1076                         {
1077                                 /* We're still reading the key name */
1078                                 if (*c != '=')
1079                                 {
1080                                         if (*c != ' ')
1081                                         {
1082                                                 current_key += *c;
1083                                         }
1084                                 }
1085                                 else
1086                                 {
1087                                         /* We got an '=', end of the key name. */
1088                                         got_key = true;
1089                                 }
1090                         }
1091                         else
1092                         {
1093                                 /* We have the key name, now we're looking for quotes and the value */
1094
1095                                 /* Correctly handle escaped characters here.
1096                                  * See the XXX'ed section above.
1097                                  */
1098                                 if ((*c == '\\') && (in_quote))
1099                                 {
1100                                         c++;
1101                                         current_value += *c;
1102                                         continue;
1103                                 }
1104                                 if (*c == '"')
1105                                 {
1106                                         if (!in_quote)
1107                                         {
1108                                                 /* We're not already in a quote. */
1109                                                 in_quote = true;
1110                                         }
1111                                         else
1112                                         {
1113                                                 /* Leaving quotes, we have the value */
1114                                                 results.push_back(KeyVal(current_key, current_value));
1115
1116                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1117
1118                                                 in_quote = false;
1119                                                 got_key = false;
1120
1121                                                 if((tagname == "include") && (current_key == "file"))
1122                                                 {
1123                                                         if(!this->DoInclude(target, current_value, errorstream))
1124                                                                 return false;
1125                                                 }
1126
1127                                                 current_key.clear();
1128                                                 current_value.clear();
1129                                         }
1130                                 }
1131                                 else
1132                                 {
1133                                         if(in_quote)
1134                                         {
1135                                                 current_value += *c;
1136                                         }
1137                                 }
1138                         }
1139                 }
1140         }
1141
1142         /* Finished parsing the tag, add it to the config hash */
1143         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1144
1145         return true;
1146 }
1147
1148 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1149 {
1150         std::string confpath;
1151         std::string newfile;
1152         std::string::size_type pos;
1153
1154         confpath = CONFIG_FILE;
1155         newfile = file;
1156
1157         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1158         {
1159                 if (*c == '\\')
1160                 {
1161                         *c = '/';
1162                 }
1163         }
1164
1165         if (file[0] != '/')
1166         {
1167                 if((pos = confpath.find("/inspircd.conf")) != std::string::npos)
1168                 {
1169                         /* Leaves us with just the path */
1170                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1171                 }
1172                 else
1173                 {
1174                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1175                         return false;
1176                 }
1177         }
1178
1179         return LoadConf(target, newfile, errorstream);
1180 }
1181
1182 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length)
1183 {
1184         std::string value;
1185         bool r = ConfValue(target, std::string(tag), std::string(var), index, value);
1186         strlcpy(result, value.c_str(), length);
1187         return r;
1188 }
1189
1190 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result)
1191 {
1192         ConfigDataHash::size_type pos = index;
1193         if((pos >= 0) && (pos < target.count(tag)))
1194         {
1195                 ConfigDataHash::const_iterator iter = target.find(tag);
1196
1197                 for(int i = 0; i < index; i++)
1198                         iter++;
1199
1200                 for(KeyValList::const_iterator j = iter->second.begin(); j != iter->second.end(); j++)
1201                 {
1202                         if(j->first == var)
1203                         {
1204                                 result = j->second;
1205                                 return true;
1206                         }
1207                 }
1208         }
1209         else if(pos == 0)
1210         {
1211                 log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1212         }
1213         else
1214         {
1215                 log(DEBUG, "ConfValue got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1216         }
1217
1218         return false;
1219 }
1220
1221 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1222 {
1223         return ConfValueInteger(target, std::string(tag), std::string(var), index, result);
1224 }
1225
1226 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1227 {
1228         std::string value;
1229         std::istringstream stream;
1230         bool r = ConfValue(target, tag, var, index, value);
1231         stream.str(value);
1232         if(!(stream >> result))
1233                 return false;
1234         return r;
1235 }
1236
1237 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1238 {
1239         return ConfValueBool(target, std::string(tag), std::string(var), index);
1240 }
1241
1242 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1243 {
1244         std::string result;
1245         if(!ConfValue(target, tag, var, index, result))
1246                 return false;
1247
1248         return ((result == "yes") || (result == "true") || (result == "1"));
1249 }
1250
1251 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1252 {
1253         return target.count(tag);
1254 }
1255
1256 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1257 {
1258         return target.count(tag);
1259 }
1260
1261 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1262 {
1263         return ConfVarEnum(target, std::string(tag), index);
1264 }
1265
1266 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1267 {
1268         ConfigDataHash::size_type pos = index;
1269
1270         if((pos >= 0) && (pos < target.count(tag)))
1271         {
1272                 ConfigDataHash::const_iterator iter = target.find(tag);
1273
1274                 for(int i = 0; i < index; i++)
1275                         iter++;
1276
1277                 return iter->second.size();
1278         }
1279         else if(pos == 0)
1280         {
1281                 log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1282         }
1283         else
1284         {
1285                 log(DEBUG, "ConfVarEnum got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1286         }
1287
1288         return 0;
1289 }
1290
1291 /** Read the contents of a file located by `fname' into a file_cache pointed at by `F'.
1292  */
1293 bool ServerConfig::ReadFile(file_cache &F, const char* fname)
1294 {
1295         FILE* file;
1296         char linebuf[MAXBUF];
1297
1298         F.clear();
1299         file =  fopen(fname,"r");
1300
1301         if (file)
1302         {
1303                 while (!feof(file))
1304                 {
1305                         fgets(linebuf,sizeof(linebuf),file);
1306                         linebuf[strlen(linebuf)-1]='\0';
1307
1308                         if (!*linebuf)
1309                         {
1310                                 strcpy(linebuf," ");
1311                         }
1312
1313                         if (!feof(file))
1314                         {
1315                                 F.push_back(linebuf);
1316                         }
1317                 }
1318
1319                 fclose(file);
1320         }
1321         else
1322                 return false;
1323
1324         return true;
1325 }
1326