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