X-Git-Url: https://git.netwichtig.de/gitweb/?a=blobdiff_plain;f=src%2Fcommand_parse.cpp;h=f4d8f377c57827729814e8739d8636900db427d2;hb=e2b0f3dc9ef4d56c71d7abda13e6139ca092e387;hp=fd103908829c1e481abe73d24605bea743c7878e;hpb=813c8981600b440a7cf762607fa6518b9e9b3d56;p=user%2Fhenk%2Fcode%2Finspircd.git diff --git a/src/command_parse.cpp b/src/command_parse.cpp index fd1039088..f4d8f377c 100644 --- a/src/command_parse.cpp +++ b/src/command_parse.cpp @@ -1,177 +1,117 @@ -/* +------------------------------------+ - * | Inspire Internet Relay Chat Daemon | - * +------------------------------------+ +/* + * InspIRCd -- Internet Relay Chat Daemon * - * InspIRCd: (C) 2002-2008 InspIRCd Development Team - * See: http://www.inspircd.org/wiki/index.php/Credits + * Copyright (C) 2014, 2018-2020 Sadie Powell + * Copyright (C) 2012-2016, 2018 Attila Molnar + * Copyright (C) 2012 Robby + * Copyright (C) 2009-2010 Daniel De Graaf + * Copyright (C) 2007-2009 Robin Burchell + * Copyright (C) 2007 Dennis Friis + * Copyright (C) 2005-2008, 2010 Craig Edwards * - * This program is free but copyrighted software; see - * the file COPYING for details. + * This file is part of InspIRCd. InspIRCd is free software: you can + * redistribute it and/or modify it under the terms of the GNU General Public + * License as published by the Free Software Foundation, version 2. * - * --------------------------------------------------- + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ -/* $Core */ #include "inspircd.h" -#include "xline.h" -#include "socketengine.h" -#include "socket.h" -#include "command_parse.h" -#include "exitcodes.h" - -/* Directory Searching for Unix-Only */ -#ifndef WIN32 -#include -#include -#endif - -int InspIRCd::PassCompare(Extensible* ex, const std::string &data, const std::string &input, const std::string &hashtype) -{ - int MOD_RESULT = 0; - FOREACH_RESULT_I(this,I_OnPassCompare,OnPassCompare(ex, data, input, hashtype)) - if (MOD_RESULT == 1) - return 0; - if (MOD_RESULT == -1) - return 1; - return data != input; // this seems back to front, but returns 0 if they *match*, 1 else -} -/* LoopCall is used to call a command classes handler repeatedly based on the contents of a comma seperated list. - * There are two overriden versions of this method, one of which takes two potential lists and the other takes one. - * We need a version which takes two potential lists for JOIN, because a JOIN may contain two lists of items at once, - * the channel names and their keys as follows: - * JOIN #chan1,#chan2,#chan3 key1,,key3 - * Therefore, we need to deal with both lists concurrently. The first instance of this method does that by creating - * two instances of irc::commasepstream and reading them both together until the first runs out of tokens. - * The second version is much simpler and just has the one stream to read, and is used in NAMES, WHOIS, PRIVMSG etc. - * Both will only parse until they reach ServerInstance->Config->MaxTargets number of targets, to stop abuse via spam. - */ -int CommandParser::LoopCall(User* user, Command* CommandObj, const std::vector& parameters, unsigned int splithere, unsigned int extra) +bool InspIRCd::PassCompare(Extensible* ex, const std::string& data, const std::string& input, const std::string& hashtype) { - if (splithere >= parameters.size()) - return 0; - - /* First check if we have more than one item in the list, if we don't we return zero here and the handler - * which called us just carries on as it was. - */ - if (parameters[splithere].find(',') == std::string::npos) - return 0; - - /** Some lame ircds will weed out dupes using some shitty O(n^2) algorithm. - * By using std::map (thanks for the idea w00t) we can cut this down a ton. - * ...VOOODOOOO! - */ - std::map dupes; + ModResult res; + FIRST_MOD_RESULT(OnPassCompare, res, (ex, data, input, hashtype)); - /* Create two lists, one for channel names, one for keys - */ - irc::commasepstream items1(parameters[splithere]); - irc::commasepstream items2(parameters[extra]); - std::string extrastuff; - std::string item; - unsigned int max = 0; - - /* Attempt to iterate these lists and call the command objech - * which called us, for every parameter pair until there are - * no more left to parse. - */ - while (items1.GetToken(item) && (max++ < ServerInstance->Config->MaxTargets)) - { - if (dupes.find(item.c_str()) == dupes.end()) - { - std::vector new_parameters; - - for (unsigned int t = 0; (t < parameters.size()) && (t < MAXPARAMETERS); t++) - new_parameters.push_back(parameters[t]); - - if (!items2.GetToken(extrastuff)) - extrastuff = ""; + /* Module matched */ + if (res == MOD_RES_ALLOW) + return true; - new_parameters[splithere] = item.c_str(); - new_parameters[extra] = extrastuff.c_str(); + /* Module explicitly didnt match */ + if (res == MOD_RES_DENY) + return false; - CommandObj->Handle(new_parameters, user); + /* We dont handle any hash types except for plaintext - Thanks tra26 */ + if (!hashtype.empty() && !stdalgo::string::equalsci(hashtype, "plaintext")) + return false; - dupes[item.c_str()] = true; - } - } - return 1; + return TimingSafeCompare(data, input); } -int CommandParser::LoopCall(User* user, Command* CommandObj, const std::vector& parameters, unsigned int splithere) +bool CommandParser::LoopCall(User* user, Command* handler, const CommandBase::Params& parameters, unsigned int splithere, int extra, bool usemax) { if (splithere >= parameters.size()) - return 0; + return false; - /* First check if we have more than one item in the list, if we don't we return zero here and the handler + /* First check if we have more than one item in the list, if we don't we return false here and the handler * which called us just carries on as it was. */ if (parameters[splithere].find(',') == std::string::npos) - return 0; + return false; - std::map dupes; + /** Some lame ircds will weed out dupes using some shitty O(n^2) algorithm. + * By using std::set (thanks for the idea w00t) we can cut this down a ton. + * ...VOOODOOOO! + * + * Only check for duplicates if there is one list (allow them in JOIN). + */ + insp::flat_set dupes; + bool check_dupes = (extra < 0); - /* Only one commasepstream here */ + /* Create two sepstreams, if we have only one list, then initialize the second sepstream with + * an empty string. The second parameter of the constructor of the sepstream tells whether + * or not to allow empty tokens. + * We allow empty keys, so "JOIN #a,#b ,bkey" will be interpreted as "JOIN #a", "JOIN #b bkey" + */ irc::commasepstream items1(parameters[splithere]); + irc::commasepstream items2(extra >= 0 ? parameters[extra] : "", true); std::string item; unsigned int max = 0; + LocalUser* localuser = IS_LOCAL(user); - /* Parse the commasepstream until there are no tokens remaining. - * Each token we parse out, call the command handler that called us - * with it + /* Attempt to iterate these lists and call the command handler + * for every parameter or parameter pair until there are no more + * left to parse. */ - while (items1.GetToken(item) && (max++ < ServerInstance->Config->MaxTargets)) + CommandBase::Params splitparams(parameters); + while (items1.GetToken(item) && (!usemax || max++ < ServerInstance->Config->MaxTargets)) { - if (dupes.find(item.c_str()) == dupes.end()) + if ((!check_dupes) || (dupes.insert(item).second)) { - std::vector new_parameters; - - for (unsigned int t = 0; (t < parameters.size()) && (t < MAXPARAMETERS); t++) - new_parameters.push_back(parameters[t]); + splitparams[splithere] = item; - new_parameters[splithere] = item.c_str(); - - /* Execute the command handler. */ - CommandObj->Handle(new_parameters, user); - - dupes[item.c_str()] = true; - } - } - /* By returning 1 we tell our caller that nothing is to be done, - * as all the previous calls handled the data. This makes the parent - * return without doing any processing. - */ - return 1; -} - -bool CommandParser::IsValidCommand(const std::string &commandname, unsigned int pcnt, User * user) -{ - Commandtable::iterator n = cmdlist.find(commandname); - - if (n != cmdlist.end()) - { - if ((pcnt >= n->second->min_params) && (n->second->source != "")) - { - if (IS_LOCAL(user) && n->second->flags_needed) + if (extra >= 0) { - if (user->IsModeSet(n->second->flags_needed)) - { - return (user->HasPermission(commandname)); - } + // If we have two lists then get the next item from the second list. + // In case it runs out of elements then 'item' will be an empty string. + items2.GetToken(item); + splitparams[extra] = item; } - else + + CmdResult result = handler->Handle(user, splitparams); + if (localuser) { - return true; + // Run the OnPostCommand hook with the last parameter being true to indicate + // that the event is being called in a loop. + item.clear(); + FOREACH_MOD(OnPostCommand, (handler, splitparams, localuser, result, true)); } } } - return false; + + return true; } Command* CommandParser::GetHandler(const std::string &commandname) { - Commandtable::iterator n = cmdlist.find(commandname); + CommandMap::iterator n = cmdlist.find(commandname); if (n != cmdlist.end()) return n->second; @@ -180,12 +120,15 @@ Command* CommandParser::GetHandler(const std::string &commandname) // calls a handler function for a command -CmdResult CommandParser::CallHandler(const std::string &commandname, const std::vector& parameters, User *user) +CmdResult CommandParser::CallHandler(const std::string& commandname, const CommandBase::Params& parameters, User* user, Command** cmd) { - Commandtable::iterator n = cmdlist.find(commandname); + CommandMap::iterator n = cmdlist.find(commandname); if (n != cmdlist.end()) { + if ((!parameters.empty()) && (parameters.back().empty()) && (!n->second->allow_empty_last_param)) + return CMD_INVALID; + if (parameters.size() >= n->second->min_params) { bool bOkay = false; @@ -197,7 +140,7 @@ CmdResult CommandParser::CallHandler(const std::string &commandname, const std:: if (user->IsModeSet(n->second->flags_needed)) { /* if user has the flags, and now has the permissions, go ahead */ - if (user->HasPermission(commandname)) + if (user->HasCommandPermission(commandname)) bOkay = true; } } @@ -209,91 +152,71 @@ CmdResult CommandParser::CallHandler(const std::string &commandname, const std:: if (bOkay) { - return n->second->Handle(parameters,user); + if (cmd) + *cmd = n->second; + + ClientProtocol::TagMap tags; + return n->second->Handle(user, CommandBase::Params(parameters, tags)); } } } return CMD_INVALID; } -void CommandParser::DoLines(User* current, bool one_only) +void CommandParser::ProcessCommand(LocalUser* user, std::string& command, CommandBase::Params& command_p) { - // while there are complete lines to process... - unsigned int floodlines = 0; - - while (current->BufferIsReady()) - { - if (current->MyClass) - { - if (ServerInstance->Time() > current->reset_due) - { - current->reset_due = ServerInstance->Time() + current->MyClass->GetThreshold(); - current->lines_in = 0; - } - - if (++current->lines_in > current->MyClass->GetFlood() && current->MyClass->GetFlood()) - { - ServerInstance->FloodQuitUser(current); - return; - } - - if ((++floodlines > current->MyClass->GetFlood()) && (current->MyClass->GetFlood() != 0)) - { - ServerInstance->FloodQuitUser(current); - return; - } - } + /* find the command, check it exists */ + Command* handler = GetHandler(command); - // use GetBuffer to copy single lines into the sanitized string - std::string single_line = current->GetBuffer(); - current->bytes_in += single_line.length(); - current->cmds_in++; - if (single_line.length() > MAXBUF - 2) // MAXBUF is 514 to allow for neccessary line terminators - single_line.resize(MAXBUF - 2); // So to trim to 512 here, we use MAXBUF - 2 + // Penalty to give if the command fails before the handler is executed + unsigned int failpenalty = 0; - // ProcessBuffer returns false if the user has gone over penalty - if (!ServerInstance->Parser->ProcessBuffer(single_line, current) || one_only) - break; + /* Modify the user's penalty regardless of whether or not the command exists */ + if (!user->HasPrivPermission("users/flood/no-throttle")) + { + // If it *doesn't* exist, give it a slightly heftier penalty than normal to deter flooding us crap + unsigned int penalty = (handler ? handler->Penalty * 1000 : 2000); + user->CommandFloodPenalty += penalty; + + // Increase their penalty later if we fail and the command has 0 penalty by default (i.e. in Command::Penalty) to + // throttle sending ERR_* from the command parser. If the command does have a non-zero penalty then this is not + // needed because we've increased their penalty above. + if (penalty == 0) + failpenalty = 1000; } -} -bool CommandParser::ProcessCommand(User *user, std::string &cmd) -{ - std::vector command_p; - irc::tokenstream tokens(cmd); - std::string command, token; - tokens.GetToken(command); - - /* A client sent a nick prefix on their command (ick) - * rhapsody and some braindead bouncers do this -- - * the rfc says they shouldnt but also says the ircd should - * discard it if they do. - */ - if (command[0] == ':') - tokens.GetToken(command); + if (!handler) + { + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, command_p, user, false)); + if (MOD_RESULT == MOD_RES_DENY) + { + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; + } - while (tokens.GetToken(token) && (command_p.size() <= MAXPARAMETERS)) - command_p.push_back(token); + /* + * This double lookup is in case a module (abbreviation) wishes to change a command. + * Sure, the double lookup is a bit painful, but bear in mind this only happens for unknowns anyway. + * + * Thanks dz for making me actually understand why this is necessary! + * -- w00t + */ + handler = GetHandler(command); + if (!handler) + { + if (user->registered == REG_ALL) + user->WriteNumeric(ERR_UNKNOWNCOMMAND, command, "Unknown command"); - std::transform(command.begin(), command.end(), command.begin(), ::toupper); - - /* find the command, check it exists */ - Commandtable::iterator cm = cmdlist.find(command); - - if (cm == cmdlist.end()) - { - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnPreCommand,OnPreCommand(command, command_p, user, false, cmd)); - if (MOD_RESULT == 1) - return true; - - if (user->registered == REG_ALL) - user->WriteNumeric(ERR_UNKNOWNCOMMAND, "%s %s :Unknown command",user->nick.c_str(),command.c_str()); - ServerInstance->stats->statsUnknown++; - return true; + ServerInstance->stats.Unknown++; + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; + } } - if (cm->second->max_params && command_p.size() > cm->second->max_params) + // If we were given more parameters than max_params then append the excess parameter(s) + // to command_p[maxparams-1], i.e. to the last param that is still allowed + if (handler->max_params && command_p.size() > handler->max_params) { /* * command_p input (assuming max_params 1): @@ -302,396 +225,190 @@ bool CommandParser::ProcessCommand(User *user, std::string &cmd) * a * test */ - std::string lparam = ""; - /* - * The '-1' here is a clever trick, we'll go backwards throwing everything into a temporary param - * and then just toss that into the array. - * -- w00t - */ - while (command_p.size() > (cm->second->max_params - 1)) + // Iterator to the last parameter that will be kept + const CommandBase::Params::iterator lastkeep = command_p.begin() + (handler->max_params - 1); + // Iterator to the first excess parameter + const CommandBase::Params::iterator firstexcess = lastkeep + 1; + + // Append all excess parameter(s) to the last parameter, separated by spaces + for (CommandBase::Params::const_iterator i = firstexcess; i != command_p.end(); ++i) { - // BE CAREFUL: .end() returns past the end of the vector, hence decrement. - std::vector::iterator it = --command_p.end(); - - lparam.insert(0, " " + *(it)); - command_p.erase(it); // remove last element + lastkeep->push_back(' '); + lastkeep->append(*i); } - /* we now have (each iteration): - * ' test' - * ' a test' - * ' is a test' <-- final string - * ...now remove the ' ' at the start... - */ - lparam.erase(lparam.begin()); - - /* param is now 'is a test', which is exactly what we wanted! */ - command_p.push_back(lparam); + // Erase the excess parameter(s) + command_p.erase(firstexcess, command_p.end()); } - int MOD_RESULT = 0; - FOREACH_RESULT(I_OnPreCommand,OnPreCommand(command, command_p, user, false, cmd)); - if (MOD_RESULT == 1) - return true; - - /* Modify the user's penalty */ - bool do_more = true; - if (!user->ExemptFromPenalty) + /* + * We call OnPreCommand here separately if the command exists, so the magic above can + * truncate to max_params if necessary. -- w00t + */ + ModResult MOD_RESULT; + FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, command_p, user, false)); + if (MOD_RESULT == MOD_RES_DENY) { - user->IncreasePenalty(cm->second->Penalty); - do_more = (user->Penalty < 10); - if (!do_more) - user->OverPenalty = true; + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; } /* activity resets the ping pending timer */ - if (user->MyClass) - user->nping = ServerInstance->Time() + user->MyClass->GetPingTime(); + user->nextping = ServerInstance->Time() + user->MyClass->GetPingTime(); - if (cm->second->flags_needed) + if (handler->flags_needed) { - if (!user->IsModeSet(cm->second->flags_needed)) + if (!user->IsModeSet(handler->flags_needed)) { - user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - You do not have the required operator privileges",user->nick.c_str()); - return do_more; + user->CommandFloodPenalty += failpenalty; + user->WriteNumeric(ERR_NOPRIVILEGES, "Permission Denied - You do not have the required operator privileges"); + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; } - if (!user->HasPermission(command)) + + if (!user->HasCommandPermission(command)) { - user->WriteNumeric(ERR_NOPRIVILEGES, "%s :Permission Denied - Oper type %s does not have access to command %s",user->nick.c_str(),user->oper.c_str(),command.c_str()); - return do_more; + user->CommandFloodPenalty += failpenalty; + user->WriteNumeric(ERR_NOPRIVILEGES, InspIRCd::Format("Permission Denied - Oper type %s does not have access to command %s", + user->oper->name.c_str(), command.c_str())); + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; } } - if ((user->registered == REG_ALL) && (!IS_OPER(user)) && (cm->second->IsDisabled())) - { - /* command is disabled! */ - if (ServerInstance->Config->DisabledDontExist) - { - user->WriteNumeric(ERR_UNKNOWNCOMMAND, "%s %s :Unknown command",user->nick.c_str(),command.c_str()); - } - else - { - user->WriteNumeric(ERR_UNKNOWNCOMMAND, "%s %s :This command has been disabled.", - user->nick.c_str(), command.c_str()); - } - ServerInstance->SNO->WriteToSnoMask('d', "%s denied for %s (%s@%s)", - command.c_str(), user->nick.c_str(), user->ident.c_str(), user->host.c_str()); - return do_more; - } - if (command_p.size() < cm->second->min_params) + if ((!command_p.empty()) && (command_p.back().empty()) && (!handler->allow_empty_last_param)) + command_p.pop_back(); + + if (command_p.size() < handler->min_params) { - user->WriteNumeric(ERR_NEEDMOREPARAMS, "%s %s :Not enough parameters.", user->nick.c_str(), command.c_str()); - if ((ServerInstance->Config->SyntaxHints) && (user->registered == REG_ALL) && (cm->second->syntax.length())) - user->WriteNumeric(RPL_SYNTAX, "%s :SYNTAX %s %s", user->nick.c_str(), cm->second->command.c_str(), cm->second->syntax.c_str()); - return do_more; + user->CommandFloodPenalty += failpenalty; + handler->TellNotEnoughParameters(user, command_p); + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; } - if ((user->registered != REG_ALL) && (!cm->second->WorksBeforeReg())) + + if ((user->registered != REG_ALL) && (!handler->works_before_reg)) { - user->WriteNumeric(ERR_NOTREGISTERED, "%s :You have not registered",command.c_str()); - return do_more; + user->CommandFloodPenalty += failpenalty; + handler->TellNotRegistered(user, command_p); + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); } else { /* passed all checks.. first, do the (ugly) stats counters. */ - cm->second->use_count++; - cm->second->total_bytes += cmd.length(); + handler->use_count++; /* module calls too */ - MOD_RESULT = 0; - FOREACH_RESULT(I_OnPreCommand,OnPreCommand(command, command_p, user, true, cmd)); - if (MOD_RESULT == 1) - return do_more; + FIRST_MOD_RESULT(OnPreCommand, MOD_RESULT, (command, command_p, user, true)); + if (MOD_RESULT == MOD_RES_DENY) + { + FOREACH_MOD(OnCommandBlocked, (command, command_p, user)); + return; + } /* * WARNING: be careful, the user may be deleted soon */ - CmdResult result = cm->second->Handle(command_p, user); + CmdResult result = handler->Handle(user, command_p); - FOREACH_MOD(I_OnPostCommand,OnPostCommand(command, command_p, user, result,cmd)); - return do_more; + FOREACH_MOD(OnPostCommand, (handler, command_p, user, result, false)); } } -void CommandParser::RemoveCommands(const char* source) +void CommandParser::RemoveCommand(Command* x) { - Commandtable::iterator i,safei; - for (i = cmdlist.begin(); i != cmdlist.end();) - { - safei = i; - i++; - RemoveCommand(safei, source); - } + CommandMap::iterator n = cmdlist.find(x->name); + if (n != cmdlist.end() && n->second == x) + cmdlist.erase(n); } -void CommandParser::RemoveCommand(Commandtable::iterator safei, const char* source) +void CommandParser::ProcessBuffer(LocalUser* user, const std::string& buffer) { - Command* x = safei->second; - if (x->source == std::string(source)) - { - cmdlist.erase(safei); - delete x; - } -} + ClientProtocol::ParseOutput parseoutput; + if (!user->serializer->Parse(user, buffer, parseoutput)) + return; -bool CommandParser::ProcessBuffer(std::string &buffer,User *user) -{ - std::string::size_type a; - - if (!user) - return true; - - while ((a = buffer.rfind("\n")) != std::string::npos) - buffer.erase(a); - while ((a = buffer.rfind("\r")) != std::string::npos) - buffer.erase(a); - - if (buffer.length()) - { - ServerInstance->Logs->Log("USERINPUT", DEBUG,"C[%d] I :%s %s",user->GetFd(), user->nick.c_str(), buffer.c_str()); - return this->ProcessCommand(user,buffer); - } + std::string& command = parseoutput.cmd; + std::transform(command.begin(), command.end(), command.begin(), ::toupper); - return true; + CommandBase::Params parameters(parseoutput.params, parseoutput.tags); + ProcessCommand(user, command, parameters); } -bool CommandParser::CreateCommand(Command *f, void* so_handle) +bool CommandParser::AddCommand(Command *f) { - if (so_handle) - { - if (RFCCommands.find(f->command) == RFCCommands.end()) - RFCCommands[f->command] = so_handle; - else - { - ServerInstance->Logs->Log("COMMAND",DEFAULT,"ERK! Somehow, we loaded a cmd_*.so file twice! Only the first instance is being recorded."); - return false; - } - } - /* create the command and push it onto the table */ - if (cmdlist.find(f->command) == cmdlist.end()) + if (cmdlist.find(f->name) == cmdlist.end()) { - cmdlist[f->command] = f; + cmdlist[f->name] = f; return true; } - else return false; + return false; } -CommandParser::CommandParser(InspIRCd* Instance) : ServerInstance(Instance) +CommandParser::CommandParser() { - para.resize(128); } -bool CommandParser::FindSym(void** v, void* h, const std::string &name) +std::string CommandParser::TranslateUIDs(const std::vector& to, const CommandBase::Params& source, bool prefix_final, CommandBase* custom_translator) { - *v = dlsym(h, "init_command"); - const char* err = dlerror(); - if (err && !(*v)) - { - ServerInstance->Logs->Log("COMMAND",SPARSE, "Error loading core command %s: %s\n", name.c_str(), err); - return false; - } - return true; -} - -bool CommandParser::ReloadCommand(std::string cmd, User* user) -{ - char filename[MAXBUF]; - std::transform(cmd.begin(), cmd.end(), cmd.begin(), ::toupper); + std::vector::const_iterator types = to.begin(); + std::string dest; - SharedObjectList::iterator command = RFCCommands.find(cmd); - - if (command != RFCCommands.end()) + for (unsigned int i = 0; i < source.size(); i++) { - Command* cmdptr = cmdlist.find(cmd)->second; - cmdlist.erase(cmdlist.find(cmd)); - - RFCCommands.erase(cmd); - std::transform(cmd.begin(), cmd.end(), cmd.begin(), ::tolower); - delete cmdptr; - dlclose(command->second); - - snprintf(filename, MAXBUF, "cmd_%s.so", cmd.c_str()); - const char* err = this->LoadCommand(filename); - if (err) + TranslateType t = TR_TEXT; + // They might supply less translation types than parameters, + // in that case pretend that all remaining types are TR_TEXT + if (types != to.end()) { - if (user) - user->WriteServ("NOTICE %s :*** Error loading 'cmd_%s.so': %s", user->nick.c_str(), cmd.c_str(), err); - return false; + t = *types; + types++; } - return true; - } - - return false; -} + bool last = (i == (source.size() - 1)); + if (prefix_final && last) + dest.push_back(':'); -CmdResult cmd_reload::Handle(const std::vector& parameters, User *user) -{ - if (parameters.size() < 1) - return CMD_FAILURE; + TranslateSingleParam(t, source[i], dest, custom_translator, i); - user->WriteServ("NOTICE %s :*** Reloading command '%s'",user->nick.c_str(), parameters[0].c_str()); - if (ServerInstance->Parser->ReloadCommand(parameters[0], user)) - { - user->WriteServ("NOTICE %s :*** Successfully reloaded command '%s'", user->nick.c_str(), parameters[0].c_str()); - ServerInstance->SNO->WriteToSnoMask('A', "RELOAD: %s reloaded the '%s' command.", user->nick.c_str(), parameters[0].c_str()); - return CMD_SUCCESS; - } - else - { - user->WriteServ("NOTICE %s :*** Could not reload command '%s' -- fix this problem, then /REHASH as soon as possible!", user->nick.c_str(), parameters[0].c_str()); - return CMD_FAILURE; + if (!last) + dest.push_back(' '); } -} -const char* CommandParser::LoadCommand(const char* name) -{ - char filename[MAXBUF]; - void* h; - Command* (*cmd_factory_func)(InspIRCd*); - - /* Command already exists? Succeed silently - this is needed for REHASH */ - if (RFCCommands.find(name) != RFCCommands.end()) - { - ServerInstance->Logs->Log("COMMAND",DEBUG,"Not reloading command %s/%s, it already exists", LIBRARYDIR, name); - return NULL; - } - - snprintf(filename, MAXBUF, "%s/%s", LIBRARYDIR, name); - h = dlopen(filename, RTLD_NOW | RTLD_GLOBAL); - - if (!h) - { - const char* n = dlerror(); - ServerInstance->Logs->Log("COMMAND",SPARSE, "Error loading core command %s: %s", name, n); - return n; - } - - if (this->FindSym((void **)&cmd_factory_func, h, name)) - { - Command* newcommand = cmd_factory_func(ServerInstance); - this->CreateCommand(newcommand, h); - } - return NULL; + return dest; } -void CommandParser::SetupCommandTable(User* user) +void CommandParser::TranslateSingleParam(TranslateType to, const std::string& item, std::string& dest, CommandBase* custom_translator, unsigned int paramnumber) { - RFCCommands.clear(); - - if (!user) - { - printf("\nLoading core commands"); - fflush(stdout); - } - - DIR* library = opendir(LIBRARYDIR); - if (library) - { - dirent* entry = NULL; - while (0 != (entry = readdir(library))) - { - if (InspIRCd::Match(entry->d_name, "cmd_*.so")) - { - if (!user) - { - printf("."); - fflush(stdout); - } - const char* err = this->LoadCommand(entry->d_name); - if (err) - { - if (user) - { - user->WriteServ("NOTICE %s :*** Failed to load core command %s: %s", user->nick.c_str(), entry->d_name, err); - } - else - { - printf("Error loading %s: %s", entry->d_name, err); - exit(EXIT_STATUS_BADHANDLER); - } - } - } - } - closedir(library); - if (!user) - printf("\n"); - } - - if (cmdlist.find("RELOAD") == cmdlist.end()) - this->CreateCommand(new cmd_reload(ServerInstance)); -} - -int CommandParser::TranslateUIDs(TranslateType to, const std::string &source, std::string &dest) -{ - User* user = NULL; - std::string item; - int translations = 0; - dest.clear(); - switch (to) { case TR_NICK: + { /* Translate single nickname */ - user = ServerInstance->FindNick(source); + User* user = ServerInstance->FindNick(item); if (user) - { - dest = user->uuid; - translations++; - } + dest.append(user->uuid); else - dest = source; - break; - case TR_NICKLIST: - { - /* Translate comma seperated list of nicknames */ - irc::commasepstream items(source); - while (items.GetToken(item)) - { - user = ServerInstance->FindNick(item); - if (user) - { - dest.append(user->uuid); - translations++; - } - else - dest.append(item); - dest.append(","); - } - if (!dest.empty()) - dest.erase(dest.end() - 1); + dest.append(item); + break; } - break; - case TR_SPACENICKLIST: + case TR_CUSTOM: { - /* Translate space seperated list of nicknames */ - irc::spacesepstream items(source); - while (items.GetToken(item)) + if (custom_translator) { - user = ServerInstance->FindNick(item); - if (user) - { - dest.append(user->uuid); - translations++; - } - else - dest.append(item); - dest.append(" "); + std::string translated = item; + custom_translator->EncodeParameter(translated, paramnumber); + dest.append(translated); + break; } - if (!dest.empty()) - dest.erase(dest.end() - 1); + // If no custom translator was given, fall through } - break; - case TR_END: - case TR_TEXT: + /*@fallthrough@*/ default: /* Do nothing */ - dest = source; + dest.append(item); break; } - - return translations; } - -