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         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(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                 {"options",             "nouserdns",                    &this->NoUserDns,               DT_BOOLEAN, NoValidation},
 549                 {"pid",                 "file",                         &this->PID,                     DT_CHARPTR, NoValidation},
 550                 {NULL}
 551         };
 552
 553         /* These tags can occur multiple times, and therefore they have special code to read them
 554          * which is different to the code for reading the singular tags listed above.
 555          */
 556         static MultiConfig MultiValues[] = {
 557
 558                 {"connect",
 559                                 {"allow",       "deny",         "password",     "timeout",      "pingfreq",     "flood",
 560                                 "threshold",    "sendq",        "recvq",        "localmax",     "globalmax",    NULL},
 561                                 {DT_CHARPTR,    DT_CHARPTR,     DT_CHARPTR,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER,
 562                                  DT_INTEGER,    DT_INTEGER,     DT_INTEGER,     DT_INTEGER,     DT_INTEGER},
 563                                 InitConnect, DoConnect, DoneConnect},
 564
 565                 {"uline",
 566                                 {"server",      NULL},
 567                                 {DT_CHARPTR},
 568                                 InitULine,DoULine,DoneULine},
 569
 570                 {"banlist",
 571                                 {"chan",        "limit",        NULL},
 572                                 {DT_CHARPTR,    DT_INTEGER},
 573                                 InitMaxBans, DoMaxBans, DoneMaxBans},
 574
 575                 {"module",
 576                                 {"name",        NULL},
 577                                 {DT_CHARPTR},
 578                                 InitModule, DoModule, DoneModule},
 579
 580                 {"badip",
 581                                 {"reason",      "ipmask",       NULL},
 582                                 {DT_CHARPTR,    DT_CHARPTR},
 583                                 InitXLine, DoZLine, DoneXLine},
 584
 585                 {"badnick",
 586                                 {"reason",      "nick",         NULL},
 587                                 {DT_CHARPTR,    DT_CHARPTR},
 588                                 InitXLine, DoQLine, DoneXLine},
 589
 590                 {"badhost",
 591                                 {"reason",      "host",         NULL},
 592                                 {DT_CHARPTR,    DT_CHARPTR},
 593                                 InitXLine, DoKLine, DoneXLine},
 594
 595                 {"exception",
 596                                 {"reason",      "host",         NULL},
 597                                 {DT_CHARPTR,    DT_CHARPTR},
 598                                 InitXLine, DoELine, DoneXLine},
 599
 600                 {"type",
 601                                 {"name",        "classes",      NULL},
 602                                 {DT_CHARPTR,    DT_CHARPTR},
 603                                 InitTypes, DoType, DoneClassesAndTypes},
 604
 605                 {"class",
 606                                 {"name",        "commands",     NULL},
 607                                 {DT_CHARPTR,    DT_CHARPTR},
 608                                 InitClasses, DoClass, DoneClassesAndTypes},
 609
 610                 {NULL}
 611         };
 612
 613         include_stack.clear();
 614
 615         /* Load and parse the config file, if there are any errors then explode */
 616
 617         /* Make a copy here so if it fails then we can carry on running with an unaffected config */
 618         ConfigDataHash newconfig;
 619
 620         if (this->LoadConf(newconfig, CONFIG_FILE, errstr))
 621         {
 622                 /* If we succeeded, set the ircd config to the new one */
 623                 Config->config_data = newconfig;
 624
 625 /*              int c = 1;
 626                 std::string last;
 627
 628                 for(ConfigDataHash::const_iterator i = this->config_data.begin(); i != this->config_data.end(); i++)
 629                 {
 630                         c = (i->first != last) ? 1 : c+1;
 631                         last = i->first;
 632
 633                         std::cout << "[" << i->first << " " << c << "/" << this->config_data.count(i->first) << "]" << std::endl;
 634
 635                         for(KeyValList::const_iterator j = i->second.begin(); j != i->second.end(); j++)
 636                                 std::cout << "\t" << j->first << " = " << j->second << std::endl;
 637
 638                         std::cout << "[/" << i->first << " " << c << "/" << this->config_data.count(i->first) << "]" << std::endl;
 639                 }
 640  */     }
 641         else
 642         {
 643                 log(DEFAULT, "There were errors in your configuration:\n%s", errstr.str().c_str());
 644
 645                 if (bail)
 646                 {
 647                         /* Unneeded because of the log() aboive? */
 648                         printf("There were errors in your configuration:\n%s",errstr.str().c_str());
 649                         Exit(0);
 650                 }
 651                 else
 652                 {
 653                         std::string errors = errstr.str();
 654                         std::string::size_type start;
 655                         unsigned int prefixlen;
 656
 657                         start = 0;
 658                         /* ":Config->ServerName NOTICE user->nick :" */
 659                         prefixlen = strlen(Config->ServerName) + strlen(user->nick) + 11;
 660
 661                         if (user)
 662                         {
 663                                 WriteServ(user->fd,"NOTICE %s :There were errors in the configuration file:",user->nick);
 664
 665                                 while(start < errors.length())
 666                                 {
 667                                         WriteServ(user->fd, "NOTICE %s :%s",user->nick, errors.substr(start, 510 - prefixlen).c_str());
 668                                         start += 510 - prefixlen;
 669                                 }
 670                         }
 671                         else
 672                         {
 673                                 WriteOpers("There were errors in the configuration file:");
 674
 675                                 while(start < errors.length())
 676                                 {
 677                                         WriteOpers(errors.substr(start, 360).c_str());
 678                                         start += 360;
 679                                 }
 680                         }
 681
 682                         return;
 683                 }
 684         }
 685
 686         /* Check we dont have more than one of singular tags, or any of them missing
 687          */
 688         for (int Index = 0; Once[Index]; Index++)
 689                 if (!CheckOnce(Once[Index],bail,user))
 690                         return;
 691
 692         /* Read the values of all the tags which occur once or not at all, and call their callbacks.
 693          */
 694         for (int Index = 0; Values[Index].tag; Index++)
 695         {
 696                 int* val_i = (int*) Values[Index].val;
 697                 char* val_c = (char*) Values[Index].val;
 698
 699                 switch (Values[Index].datatype)
 700                 {
 701                         case DT_CHARPTR:
 702                                 /* Assuming MAXBUF here, potentially unsafe */
 703                                 ConfValue(this->config_data, Values[Index].tag, Values[Index].value, 0, val_c, MAXBUF);
 704                         break;
 705
 706                         case DT_INTEGER:
 707                                 ConfValueInteger(this->config_data, Values[Index].tag, Values[Index].value, 0, *val_i);
 708                         break;
 709
 710                         case DT_BOOLEAN:
 711                                 *val_i = ConfValueBool(this->config_data, Values[Index].tag, Values[Index].value, 0);
 712                         break;
 713
 714                         case DT_NOTHING:
 715                         break;
 716                 }
 717
 718                 Values[Index].validation_function(Values[Index].tag, Values[Index].value, Values[Index].val);
 719         }
 720
 721         /* Claim memory for use when reading multiple tags
 722          */
 723         for (int n = 0; n < 12; n++)
 724                 data[n] = new char[MAXBUF];
 725
 726         /* Read the multiple-tag items (class tags, connect tags, etc)
 727          * and call the callbacks associated with them. We have three
 728          * callbacks for these, a 'start', 'item' and 'end' callback.
 729          */
 730
 731         /* XXX - Make this use ConfValueInteger and so on */
 732         for (int Index = 0; MultiValues[Index].tag; Index++)
 733         {
 734                 MultiValues[Index].init_function(MultiValues[Index].tag);
 735
 736                 int number_of_tags = ConfValueEnum(this->config_data, MultiValues[Index].tag);
 737
 738                 for (int tagnum = 0; tagnum < number_of_tags; tagnum++)
 739                 {
 740                         for (int valuenum = 0; MultiValues[Index].items[valuenum]; valuenum++)
 741                         {
 742                                 ConfValue(this->config_data, MultiValues[Index].tag, MultiValues[Index].items[valuenum], tagnum, data[valuenum], MAXBUF);
 743
 744                                 switch (MultiValues[Index].datatype[valuenum])
 745                                 {
 746                                         case DT_CHARPTR:
 747                                                 ptr[valuenum] = data[valuenum];
 748                                         break;
 749                                         case DT_INTEGER:
 750                                                 r_i[valuenum] = atoi(data[valuenum]);
 751                                                 ptr[valuenum] = &r_i[valuenum];
 752                                         break;
 753                                         case DT_BOOLEAN:
 754                                                 r_i[valuenum] = ((*data[valuenum] == tolower('y')) || (*data[valuenum] == tolower('t')) || (*data[valuenum] == '1'));
 755                                                 ptr[valuenum] = &r_i[valuenum];
 756                                         break;
 757                                         default:
 758                                         break;
 759                                 }
 760                         }
 761                         MultiValues[Index].validation_function(MultiValues[Index].tag, (char**)MultiValues[Index].items, ptr, MultiValues[Index].datatype);
 762                 }
 763
 764                 MultiValues[Index].finish_function(MultiValues[Index].tag);
 765         }
 766
 767         /* Free any memory we claimed
 768          */
 769         for (int n = 0; n < 12; n++)
 770                 delete[] data[n];
 771
 772         // write once here, to try it out and make sure its ok
 773         ServerInstance->WritePID(Config->PID);
 774
 775         log(DEFAULT,"Done reading configuration file, InspIRCd is now starting.");
 776
 777         /* If we're rehashing, let's load any new modules, and unload old ones
 778          */
 779         if (!bail)
 780         {
 781                 ServerInstance->stats->BoundPortCount = BindPorts(false);
 782
 783                 if (!removed_modules.empty())
 784                         for (std::vector<std::string>::iterator removing = removed_modules.begin(); removing != removed_modules.end(); removing++)
 785                         {
 786                                 if (ServerInstance->UnloadModule(removing->c_str()))
 787                                 {
 788                                         WriteOpers("*** REHASH UNLOADED MODULE: %s",removing->c_str());
 789
 790                                         if (user)
 791                                                 WriteServ(user->fd,"973 %s %s :Module %s successfully unloaded.",user->nick, removing->c_str(), removing->c_str());
 792
 793                                         rem++;
 794                                 }
 795                                 else
 796                                 {
 797                                         if (user)
 798                                                 WriteServ(user->fd,"972 %s %s :Failed to unload module %s: %s",user->nick, removing->c_str(), removing->c_str(), ServerInstance->ModuleError());
 799                                 }
 800                         }
 801
 802                 if (!added_modules.empty())
 803                 for (std::vector<std::string>::iterator adding = added_modules.begin(); adding != added_modules.end(); adding++)
 804                 {
 805                         if (ServerInstance->LoadModule(adding->c_str()))
 806                         {
 807                                 WriteOpers("*** REHASH LOADED MODULE: %s",adding->c_str());
 808
 809                                 if (user)
 810                                         WriteServ(user->fd,"975 %s %s :Module %s successfully loaded.",user->nick, adding->c_str(), adding->c_str());
 811
 812                                 add++;
 813                         }
 814                         else
 815                         {
 816                                 if (user)
 817                                         WriteServ(user->fd,"974 %s %s :Failed to load module %s: %s",user->nick, adding->c_str(), adding->c_str(), ServerInstance->ModuleError());
 818                         }
 819                 }
 820
 821                 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());
 822         }
 823 }
 824
 825 bool ServerConfig::LoadConf(ConfigDataHash &target, const char* filename, std::ostringstream &errorstream)
 826 {
 827         std::ifstream conf(filename);
 828         std::string line;
 829         char ch;
 830         long linenumber;
 831         bool in_tag;
 832         bool in_quote;
 833         bool in_comment;
 834
 835         linenumber = 1;
 836         in_tag = false;
 837         in_quote = false;
 838         in_comment = false;
 839
 840         /* Check if the file open failed first */
 841         if (!conf)
 842         {
 843                 errorstream << "LoadConf: Couldn't open config file: " << filename << std::endl;
 844                 return false;
 845         }
 846
 847         /* Fix the chmod of the file to restrict it to the current user and group */
 848         chmod(filename,0600);
 849
 850         for (unsigned int t = 0; t < include_stack.size(); t++)
 851         {
 852                 if (std::string(filename) == include_stack[t])
 853                 {
 854                         errorstream << "File " << filename << " is included recursively (looped inclusion)." << std::endl;
 855                         return false;
 856                 }
 857         }
 858
 859         /* It's not already included, add it to the list of files we've loaded */
 860         include_stack.push_back(filename);
 861
 862         /* Start reading characters... */
 863         while(conf.get(ch))
 864         {
 865                 /*
 866                  * Here we try and get individual tags on separate lines,
 867                  * this would be so easy if we just made people format
 868                  * their config files like that, but they don't so...
 869                  * We check for a '<' and then know the line is over when
 870                  * we get a '>' not inside quotes. If we find two '<' and
 871                  * no '>' then die with an error.
 872                  */
 873
 874                 if((ch == '#') && !in_quote)
 875                         in_comment = true;
 876
 877                 if(((ch == '\n') || (ch == '\r')) && in_quote)
 878                 {
 879                         errorstream << "Got a newline within a quoted section, this is probably a typo: " << filename << ":" << linenumber << std::endl;
 880                         return false;
 881                 }
 882
 883                 switch(ch)
 884                 {
 885                         case '\n':
 886                                 linenumber++;
 887                         case '\r':
 888                                 in_comment = false;
 889                         case '\0':
 890                                 continue;
 891                         case '\t':
 892                                 ch = ' ';
 893                 }
 894
 895                 if(in_comment)
 896                         continue;
 897
 898                 /* XXX: Added by Brain, May 1st 2006 - Escaping of characters.
 899                  * Note that this WILL NOT usually allow insertion of newlines,
 900                  * because a newline is two characters long. Use it primarily to
 901                  * insert the " symbol.
 902                  *
 903                  * Note that this also involves a further check when parsing the line,
 904                  * which can be found below.
 905                  */
 906                 if ((ch == '\\') && (in_quote) && (in_tag))
 907                 {
 908                         line += ch;
 909                         log(DEBUG,"Escape sequence in config line.");
 910                         char real_character;
 911                         if (conf.get(real_character))
 912                         {
 913                                 log(DEBUG,"Escaping %c", real_character);
 914                                 line += real_character;
 915                                 continue;
 916                         }
 917                         else
 918                         {
 919                                 errorstream << "End of file after a \\, what did you want to escape?: " << filename << ":" << linenumber << std::endl;
 920                                 return false;
 921                         }
 922                 }
 923
 924                 line += ch;
 925
 926                 if(ch == '<')
 927                 {
 928                         if(in_tag)
 929                         {
 930                                 if(!in_quote)
 931                                 {
 932                                         errorstream << "Got another opening < when the first one wasn't closed: " << filename << ":" << linenumber << std::endl;
 933                                         return false;
 934                                 }
 935                         }
 936                         else
 937                         {
 938                                 if(in_quote)
 939                                 {
 940                                         errorstream << "We're in a quote but outside a tag, interesting. " << filename << ":" << linenumber << std::endl;
 941                                         return false;
 942                                 }
 943                                 else
 944                                 {
 945                                         // errorstream << "Opening new config tag on line " << linenumber << std::endl;
 946                                         in_tag = true;
 947                                 }
 948                         }
 949                 }
 950                 else if(ch == '"')
 951                 {
 952                         if(in_tag)
 953                         {
 954                                 if(in_quote)
 955                                 {
 956                                         // errorstream << "Closing quote in config tag on line " << linenumber << std::endl;
 957                                         in_quote = false;
 958                                 }
 959                                 else
 960                                 {
 961                                         // errorstream << "Opening quote in config tag on line " << linenumber << std::endl;
 962                                         in_quote = true;
 963                                 }
 964                         }
 965                         else
 966                         {
 967                                 if(in_quote)
 968                                 {
 969                                         errorstream << "Found a (closing) \" outside a tag: " << filename << ":" << linenumber << std::endl;
 970                                 }
 971                                 else
 972                                 {
 973                                         errorstream << "Found a (opening) \" outside a tag: " << filename << ":" << linenumber << std::endl;
 974                                 }
 975                         }
 976                 }
 977                 else if(ch == '>')
 978                 {
 979                         if(!in_quote)
 980                         {
 981                                 if(in_tag)
 982                                 {
 983                                         // errorstream << "Closing config tag on line " << linenumber << std::endl;
 984                                         in_tag = false;
 985
 986                                         /*
 987                                          * If this finds an <include> then ParseLine can simply call
 988                                          * LoadConf() and load the included config into the same ConfigDataHash
 989                                          */
 990
 991                                         if(!this->ParseLine(target, line, linenumber, errorstream))
 992                                                 return false;
 993
 994                                         line.clear();
 995                                 }
 996                                 else
 997                                 {
 998                                         errorstream << "Got a closing > when we weren't inside a tag: " << filename << ":" << linenumber << std::endl;
 999                                         return false;
1000                                 }
1001                         }
1002                 }
1003         }
1004
1005         return true;
1006 }
1007
1008 bool ServerConfig::LoadConf(ConfigDataHash &target, const std::string &filename, std::ostringstream &errorstream)
1009 {
1010         return this->LoadConf(target, filename.c_str(), errorstream);
1011 }
1012
1013 bool ServerConfig::ParseLine(ConfigDataHash &target, std::string &line, long linenumber, std::ostringstream &errorstream)
1014 {
1015         std::string tagname;
1016         std::string current_key;
1017         std::string current_value;
1018         KeyValList results;
1019         bool got_name;
1020         bool got_key;
1021         bool in_quote;
1022
1023         got_name = got_key = in_quote = false;
1024
1025         // std::cout << "ParseLine(data, '" << line << "', " << linenumber << ", stream)" << std::endl;
1026
1027         for(std::string::iterator c = line.begin(); c != line.end(); c++)
1028         {
1029                 if(!got_name)
1030                 {
1031                         /* We don't know the tag name yet. */
1032
1033                         if(*c != ' ')
1034                         {
1035                                 if(*c != '<')
1036                                 {
1037                                         tagname += *c;
1038                                 }
1039                         }
1040                         else
1041                         {
1042                                 /* We got to a space, we should have the tagname now. */
1043                                 if(tagname.length())
1044                                 {
1045                                         got_name = true;
1046                                 }
1047                         }
1048                 }
1049                 else
1050                 {
1051                         /* We have the tag name */
1052                         if (!got_key)
1053                         {
1054                                 /* We're still reading the key name */
1055                                 if (*c != '=')
1056                                 {
1057                                         if (*c != ' ')
1058                                         {
1059                                                 current_key += *c;
1060                                         }
1061                                 }
1062                                 else
1063                                 {
1064                                         /* We got an '=', end of the key name. */
1065                                         got_key = true;
1066                                 }
1067                         }
1068                         else
1069                         {
1070                                 /* We have the key name, now we're looking for quotes and the value */
1071
1072                                 /* Correctly handle escaped characters here.
1073                                  * See the XXX'ed section above.
1074                                  */
1075                                 if ((*c == '\\') && (in_quote))
1076                                 {
1077                                         c++;
1078                                         current_value += *c;
1079                                         continue;
1080                                 }
1081                                 if (*c == '"')
1082                                 {
1083                                         if (!in_quote)
1084                                         {
1085                                                 /* We're not already in a quote. */
1086                                                 in_quote = true;
1087                                         }
1088                                         else
1089                                         {
1090                                                 /* Leaving quotes, we have the value */
1091                                                 results.push_back(KeyVal(current_key, current_value));
1092
1093                                                 // std::cout << "<" << tagname << ":" << current_key << "> " << current_value << std::endl;
1094
1095                                                 in_quote = false;
1096                                                 got_key = false;
1097
1098                                                 if((tagname == "include") && (current_key == "file"))
1099                                                 {
1100                                                         if(!this->DoInclude(target, current_value, errorstream))
1101                                                                 return false;
1102                                                 }
1103
1104                                                 current_key.clear();
1105                                                 current_value.clear();
1106                                         }
1107                                 }
1108                                 else
1109                                 {
1110                                         if(in_quote)
1111                                         {
1112                                                 current_value += *c;
1113                                         }
1114                                 }
1115                         }
1116                 }
1117         }
1118
1119         /* Finished parsing the tag, add it to the config hash */
1120         target.insert(std::pair<std::string, KeyValList > (tagname, results));
1121
1122         return true;
1123 }
1124
1125 bool ServerConfig::DoInclude(ConfigDataHash &target, const std::string &file, std::ostringstream &errorstream)
1126 {
1127         std::string confpath;
1128         std::string newfile;
1129         std::string::size_type pos;
1130
1131         confpath = CONFIG_FILE;
1132         newfile = file;
1133
1134         for (std::string::iterator c = newfile.begin(); c != newfile.end(); c++)
1135         {
1136                 if (*c == '\\')
1137                 {
1138                         *c = '/';
1139                 }
1140         }
1141
1142         if (file[0] != '/')
1143         {
1144                 if((pos = confpath.find("/inspircd.conf")) != std::string::npos)
1145                 {
1146                         /* Leaves us with just the path */
1147                         newfile = confpath.substr(0, pos) + std::string("/") + newfile;
1148                 }
1149                 else
1150                 {
1151                         errorstream << "Couldn't get config path from: " << confpath << std::endl;
1152                         return false;
1153                 }
1154         }
1155
1156         return LoadConf(target, newfile, errorstream);
1157 }
1158
1159 bool ServerConfig::ConfValue(ConfigDataHash &target, const char* tag, const char* var, int index, char* result, int length)
1160 {
1161         std::string value;
1162         bool r = ConfValue(target, std::string(tag), std::string(var), index, value);
1163         strlcpy(result, value.c_str(), length);
1164         return r;
1165 }
1166
1167 bool ServerConfig::ConfValue(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, std::string &result)
1168 {
1169         ConfigDataHash::size_type pos = index;
1170         if((pos >= 0) && (pos < target.count(tag)))
1171         {
1172                 ConfigDataHash::const_iterator iter = target.find(tag);
1173
1174                 for(int i = 0; i < index; i++)
1175                         iter++;
1176
1177                 for(KeyValList::const_iterator j = iter->second.begin(); j != iter->second.end(); j++)
1178                 {
1179                         if(j->first == var)
1180                         {
1181                                 result = j->second;
1182                                 return true;
1183                         }
1184                 }
1185         }
1186         else if(pos == 0)
1187         {
1188                 log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1189         }
1190         else
1191         {
1192                 log(DEBUG, "ConfValue got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1193         }
1194
1195         return false;
1196 }
1197
1198 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const char* tag, const char* var, int index, int &result)
1199 {
1200         return ConfValueInteger(target, std::string(tag), std::string(var), index, result);
1201 }
1202
1203 bool ServerConfig::ConfValueInteger(ConfigDataHash &target, const std::string &tag, const std::string &var, int index, int &result)
1204 {
1205         std::string value;
1206         std::istringstream stream;
1207         bool r = ConfValue(target, tag, var, index, value);
1208         stream.str(value);
1209         if(!(stream >> result))
1210                 return false;
1211         return r;
1212 }
1213
1214 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const char* tag, const char* var, int index)
1215 {
1216         return ConfValueBool(target, std::string(tag), std::string(var), index);
1217 }
1218
1219 bool ServerConfig::ConfValueBool(ConfigDataHash &target, const std::string &tag, const std::string &var, int index)
1220 {
1221         std::string result;
1222         if(!ConfValue(target, tag, var, index, result))
1223                 return false;
1224
1225         return ((result == "yes") || (result == "true") || (result == "1"));
1226 }
1227
1228 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const char* tag)
1229 {
1230         return target.count(tag);
1231 }
1232
1233 int ServerConfig::ConfValueEnum(ConfigDataHash &target, const std::string &tag)
1234 {
1235         return target.count(tag);
1236 }
1237
1238 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const char* tag, int index)
1239 {
1240         return ConfVarEnum(target, std::string(tag), index);
1241 }
1242
1243 int ServerConfig::ConfVarEnum(ConfigDataHash &target, const std::string &tag, int index)
1244 {
1245         ConfigDataHash::size_type pos = index;
1246
1247         if((pos >= 0) && (pos < target.count(tag)))
1248         {
1249                 ConfigDataHash::const_iterator iter = target.find(tag);
1250
1251                 for(int i = 0; i < index; i++)
1252                         iter++;
1253
1254                 return iter->second.size();
1255         }
1256         else if(pos == 0)
1257         {
1258                 log(DEBUG, "No <%s> tags in config file.", tag.c_str());
1259         }
1260         else
1261         {
1262                 log(DEBUG, "ConfVarEnum got an out-of-range index %d, there are only %d occurences of %s", pos, target.count(tag), tag.c_str());
1263         }
1264
1265         return 0;
1266 }