1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
7 * <brain@chatspike.net>
8 * <Craig@chatspike.net>
10 * Written by Craig Edwards, Craig McLure, and others.
11 * This program is free but copyrighted software; see
12 * the file COPYING for details.
14 * ---------------------------------------------------
18 #include "configreader.h"
26 #include "socketengine.h"
28 #include "command_parse.h"
30 bool InspIRCd::ULine(const char* server)
37 return (find(Config->ulines.begin(),Config->ulines.end(),server) != Config->ulines.end());
40 int InspIRCd::OperPassCompare(const char* data,const char* input)
43 FOREACH_RESULT_I(this,I_OnOperCompare,OnOperCompare(data,input))
44 Log(DEBUG,"OperPassCompare: %d",MOD_RESULT);
49 Log(DEBUG,"strcmp fallback: '%s' '%s' %d",data,input,strcmp(data,input));
50 return strcmp(data,input);
53 long InspIRCd::Duration(const char* str)
59 if ((!strchr(str,'s')) && (!strchr(str,'m')) && (!strchr(str,'h')) && (!strchr(str,'d')) && (!strchr(str,'w')) && (!strchr(str,'y')))
63 return Duration(n.c_str());
66 for (char* i = (char*)str; *i; i++)
68 // if we have digits, build up a string for the value in n_field,
69 // up to 10 digits in size.
70 if ((*i >= '0') && (*i <= '9'))
72 strlcat(n_field,i,10);
76 // we dont have a digit, check for numeric tokens
80 total += atoi(n_field);
84 total += (atoi(n_field)*duration_m);
88 total += (atoi(n_field)*duration_h);
92 total += (atoi(n_field)*duration_d);
96 total += (atoi(n_field)*duration_w);
100 total += (atoi(n_field)*duration_y);
106 // add trailing seconds
107 total += atoi(n_field);
112 /* All other ircds when doing this check usually just look for a string of *@* or *. We're smarter than that, though. */
114 bool InspIRCd::HostMatchesEveryone(const std::string &mask, userrec* user)
117 char itrigger[MAXBUF];
120 if (!Config->ConfValue(Config->config_data, "insane","trigger", 0, itrigger, MAXBUF))
121 strlcpy(itrigger,"95.5",MAXBUF);
123 if (Config->ConfValueBool(Config->config_data, "insane","hostmasks", 0))
126 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
128 strlcpy(buffer,u->second->ident,MAXBUF);
129 charlcat(buffer,'@',MAXBUF);
130 strlcat(buffer,u->second->host,MAXBUF);
131 if (match(buffer,mask.c_str()))
134 float percent = ((float)matches / (float)clientlist.size()) * 100;
135 if (percent > (float)atof(itrigger))
137 WriteOpers("*** \2WARNING\2: %s tried to set a G/K/E line mask of %s, which covers %.2f%% of the network!",user->nick,mask.c_str(),percent);
143 bool InspIRCd::IPMatchesEveryone(const std::string &ip, userrec* user)
145 char itrigger[MAXBUF];
148 if (!Config->ConfValue(Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
149 strlcpy(itrigger,"95.5",MAXBUF);
151 if (Config->ConfValueBool(Config->config_data, "insane","ipmasks",0))
154 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
156 if (match(u->second->GetIPString(),ip.c_str(),true))
160 float percent = ((float)matches / (float)clientlist.size()) * 100;
161 if (percent > (float)atof(itrigger))
163 WriteOpers("*** \2WARNING\2: %s tried to set a Z line mask of %s, which covers %.2f%% of the network!",user->nick,ip.c_str(),percent);
169 bool InspIRCd::NickMatchesEveryone(const std::string &nick, userrec* user)
171 char itrigger[MAXBUF];
174 if (!Config->ConfValue(Config->config_data, "insane","trigger",0,itrigger,MAXBUF))
175 strlcpy(itrigger,"95.5",MAXBUF);
177 if (Config->ConfValueBool(Config->config_data, "insane","nickmasks",0))
180 for (user_hash::iterator u = clientlist.begin(); u != clientlist.end(); u++)
182 if (match(u->second->nick,nick.c_str()))
186 float percent = ((float)matches / (float)clientlist.size()) * 100;
187 if (percent > (float)atof(itrigger))
189 WriteOpers("*** \2WARNING\2: %s tried to set a Q line mask of %s, which covers %.2f%% of the network!",user->nick,nick.c_str(),percent);
195 /* LoopCall is used to call a command classes handler repeatedly based on the contents of a comma seperated list.
196 * There are two overriden versions of this method, one of which takes two potential lists and the other takes one.
197 * We need a version which takes two potential lists for JOIN, because a JOIN may contain two lists of items at once,
198 * the channel names and their keys as follows:
199 * JOIN #chan1,#chan2,#chan3 key1,,key3
200 * Therefore, we need to deal with both lists concurrently. The first instance of this method does that by creating
201 * two instances of irc::commasepstream and reading them both together until the first runs out of tokens.
202 * The second version is much simpler and just has the one stream to read, and is used in NAMES, WHOIS, PRIVMSG etc.
203 * Both will only parse until they reach ServerInstance->Config->MaxTargets number of targets, to stop abuse via spam.
205 int CommandParser::LoopCall(userrec* user, command_t* CommandObj, const char** parameters, int pcnt, unsigned int splithere, unsigned int extra)
207 /* First check if we have more than one item in the list, if we don't we return zero here and the handler
208 * which called us just carries on as it was.
210 if (!strchr(parameters[splithere],','))
213 /* Create two lists, one for channel names, one for keys
215 irc::commasepstream items1(parameters[splithere]);
216 irc::commasepstream items2(parameters[extra]);
217 std::string item = "";
218 unsigned int max = 0;
220 /* Attempt to iterate these lists and call the command objech
221 * which called us, for every parameter pair until there are
222 * no more left to parse.
224 while (((item = items1.GetToken()) != "") && (max++ < ServerInstance->Config->MaxTargets))
226 std::string extrastuff = items2.GetToken();
227 parameters[splithere] = item.c_str();
228 parameters[extra] = extrastuff.c_str();
229 CommandObj->Handle(parameters,pcnt,user);
234 int CommandParser::LoopCall(userrec* user, command_t* CommandObj, const char** parameters, int pcnt, unsigned int splithere)
236 /* First check if we have more than one item in the list, if we don't we return zero here and the handler
237 * which called us just carries on as it was.
239 if (!strchr(parameters[splithere],','))
242 /* Only one commasepstream here */
243 irc::commasepstream items1(parameters[splithere]);
244 std::string item = "";
245 unsigned int max = 0;
247 /* Parse the commasepstream until there are no tokens remaining.
248 * Each token we parse out, call the command handler that called us
251 while (((item = items1.GetToken()) != "") && (max++ < ServerInstance->Config->MaxTargets))
253 parameters[splithere] = item.c_str();
254 CommandObj->Handle(parameters,pcnt,user);
256 /* By returning 1 we tell our caller that nothing is to be done,
257 * as all the previous calls handled the data. This makes the parent
258 * return without doing any processing.
263 bool CommandParser::IsValidCommand(const std::string &commandname, int pcnt, userrec * user)
265 nspace::hash_map<std::string,command_t*>::iterator n = cmdlist.find(commandname);
267 if (n != cmdlist.end())
269 if ((pcnt>=n->second->min_params) && (n->second->source != "<core>"))
271 if ((!n->second->flags_needed) || (user->modes[n->second->flags_needed-65]))
273 if (n->second->flags_needed)
275 return ((user->HasPermission(commandname)) || (ServerInstance->ULine(user->server)));
284 // calls a handler function for a command
286 CmdResult CommandParser::CallHandler(const std::string &commandname,const char** parameters, int pcnt, userrec *user)
288 nspace::hash_map<std::string,command_t*>::iterator n = cmdlist.find(commandname);
290 if (n != cmdlist.end())
292 if (pcnt >= n->second->min_params)
294 if ((!n->second->flags_needed) || (user->modes[n->second->flags_needed-65]))
296 if (n->second->flags_needed)
298 if ((user->HasPermission(commandname)) || (!IS_LOCAL(user)))
300 return n->second->Handle(parameters,pcnt,user);
305 return n->second->Handle(parameters,pcnt,user);
313 void CommandParser::ProcessCommand(userrec *user, std::string &cmd)
315 const char *command_p[127];
317 irc::tokenstream tokens(cmd);
318 std::string command = tokens.GetToken();
320 while (((para[items] = tokens.GetToken()) != "") && (items < 127))
322 command_p[items] = para[items].c_str();
326 std::transform(command.begin(), command.end(), command.begin(), ::toupper);
329 FOREACH_RESULT(I_OnPreCommand,OnPreCommand(command,command_p,items,user,false,cmd));
330 if (MOD_RESULT == 1) {
334 nspace::hash_map<std::string,command_t*>::iterator cm = cmdlist.find(command);
336 if (cm != cmdlist.end())
340 /* activity resets the ping pending timer */
341 user->nping = ServerInstance->Time() + user->pingmax;
342 if (cm->second->flags_needed)
344 if (!user->IsModeSet(cm->second->flags_needed))
346 user->WriteServ("481 %s :Permission Denied- You do not have the required operator privilages",user->nick);
349 if (!user->HasPermission(command))
351 user->WriteServ("481 %s :Permission Denied- Oper type %s does not have access to command %s",user->nick,user->oper,command.c_str());
355 if ((user->registered == REG_ALL) && (!*user->oper) && (cm->second->IsDisabled()))
357 /* command is disabled! */
358 user->WriteServ("421 %s %s :This command has been disabled.",user->nick,command.c_str());
361 if (items < cm->second->min_params)
363 user->WriteServ("461 %s %s :Not enough parameters.", user->nick, command.c_str());
364 /* If syntax is given, display this as the 461 reply */
365 if ((ServerInstance->Config->SyntaxHints) && (cm->second->syntax.length()))
366 user->WriteServ("304 %s :SYNTAX %s %s", user->nick, cm->second->command.c_str(), cm->second->syntax.c_str());
369 if ((user->registered == REG_ALL) || (cm->second->WorksBeforeReg()))
371 /* ikky /stats counters */
372 cm->second->use_count++;
373 cm->second->total_bytes += cmd.length();
376 FOREACH_RESULT(I_OnPreCommand,OnPreCommand(command,command_p,items,user,true,cmd));
381 * WARNING: nothing may come after the
382 * command handler call, as the handler
383 * may free the user structure!
385 CmdResult result = cm->second->Handle(command_p,items,user);
387 if (result != CMD_USER_DELETED)
389 FOREACH_MOD(I_OnPostCommand,OnPostCommand(command, command_p, items, user, result,cmd));
395 user->WriteServ("451 %s :You have not registered",command.c_str());
402 ServerInstance->stats->statsUnknown++;
403 user->WriteServ("421 %s %s :Unknown command",user->nick,command.c_str());
407 bool CommandParser::RemoveCommands(const char* source)
409 bool go_again = true;
415 for (nspace::hash_map<std::string,command_t*>::iterator i = cmdlist.begin(); i != cmdlist.end(); i++)
417 command_t* x = i->second;
418 if (x->source == std::string(source))
420 ServerInstance->Log(DEBUG,"removecommands(%s) Removing dependent command: %s",x->source.c_str(),x->command.c_str());
431 void CommandParser::ProcessBuffer(std::string &buffer,userrec *user)
433 std::string::size_type a;
438 while ((a = buffer.rfind("\n")) != std::string::npos)
440 while ((a = buffer.rfind("\r")) != std::string::npos)
445 ServerInstance->Log(DEBUG,"CMDIN: %s %s",user->nick,buffer.c_str());
446 this->ProcessCommand(user,buffer);
450 bool CommandParser::CreateCommand(command_t *f, void* so_handle)
454 if (RFCCommands.find(f->command) == RFCCommands.end())
456 RFCCommands[f->command] = so_handle;
457 ServerInstance->Log(DEFAULT,"Monitoring RFC-specified reloadable command at %8x",so_handle);
461 ServerInstance->Log(DEFAULT,"ERK! Somehow, we loaded a cmd_*.so file twice! Only the first instance is being recorded.");
466 /* create the command and push it onto the table */
467 if (cmdlist.find(f->command) == cmdlist.end())
469 cmdlist[f->command] = f;
470 ServerInstance->Log(DEBUG,"Added command %s (%lu parameters)",f->command.c_str(),(unsigned long)f->min_params);
476 CommandParser::CommandParser(InspIRCd* Instance) : ServerInstance(Instance)
479 this->SetupCommandTable();
482 bool CommandParser::FindSym(void** v, void* h)
484 *v = dlsym(h, "init_command");
485 const char* err = dlerror();
488 ServerInstance->Log(SPARSE, "Error loading core command: %s\n", err);
494 bool CommandParser::ReloadCommand(const char* cmd)
496 char filename[MAXBUF];
497 char commandname[MAXBUF];
500 for (const char* x = cmd; *x; x++, y++)
501 commandname[y] = toupper(*x);
505 SharedObjectList::iterator command = RFCCommands.find(commandname);
507 if (command != RFCCommands.end())
509 command_t* cmdptr = cmdlist.find(commandname)->second;
510 cmdlist.erase(cmdlist.find(commandname));
512 for (char* x = commandname; *x; x++)
517 dlclose(command->second);
518 RFCCommands.erase(command);
520 snprintf(filename, MAXBUF, "cmd_%s.so", commandname);
521 this->LoadCommand(filename);
529 CmdResult cmd_reload::Handle(const char** parameters, int pcnt, userrec *user)
531 user->WriteServ("NOTICE %s :*** Reloading command '%s'",user->nick, parameters[0]);
532 if (ServerInstance->Parser->ReloadCommand(parameters[0]))
534 user->WriteServ("NOTICE %s :*** Successfully reloaded command '%s'", user->nick, parameters[0]);
539 user->WriteServ("NOTICE %s :*** Could not reload command '%s'", user->nick, parameters[0]);
544 void CommandParser::LoadCommand(const char* name)
546 char filename[MAXBUF];
548 command_t* (*cmd_factory_func)(InspIRCd*);
550 snprintf(filename, MAXBUF, "%s/%s", LIBRARYDIR, name);
551 ServerInstance->Log(DEBUG,"Load command: %s", filename);
553 h = dlopen(filename, RTLD_NOW | RTLD_GLOBAL);
557 ServerInstance->Log(SPARSE, "Error loading core command: %s", dlerror());
561 if (this->FindSym((void **)&cmd_factory_func, h))
563 command_t* newcommand = cmd_factory_func(ServerInstance);
564 this->CreateCommand(newcommand, h);
568 void CommandParser::SetupCommandTable()
572 DIR* library = opendir(LIBRARYDIR);
575 dirent* entry = NULL;
576 while ((entry = readdir(library)))
578 if (match(entry->d_name, "cmd_*.so"))
580 this->LoadCommand(entry->d_name);
586 this->CreateCommand(new cmd_reload(ServerInstance));