diff options
Diffstat (limited to 'src/modules')
| -rw-r--r-- | src/modules/m_callerid.cpp | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/src/modules/m_callerid.cpp b/src/modules/m_callerid.cpp new file mode 100644 index 000000000..18f15d03d --- /dev/null +++ b/src/modules/m_callerid.cpp @@ -0,0 +1,316 @@ +#include "inspircd.h" +#include "users.h" +#include "channels.h" +#include "modules.h" + +#include <set> + +/* $ModDesc: Implementation of callerid (umode +g & /accept, ala hybrid etc) */ + +class callerid_data +{ + public: + time_t lastnotify; + std::set<User*> accepting; +}; + +callerid_data* GetData(User* who, bool extend = true) +{ + callerid_data* dat; + if (who->GetExt("callerid_data", dat)) + { + return dat; + } + else + { + if (extend) + { + dat = new callerid_data; + dat->lastnotify = 0; // Can't init in struct. + who->Extend("callerid_data", dat); + return dat; + } + else + { + return NULL; + } + } +} + +void RemoveData(User* who) +{ + callerid_data* dat; + who->GetExt("callerid_data", dat); + if (!dat) return; + who->Shrink("callerid_data"); + delete dat; +} + +void RemoveFromAllAccepts(InspIRCd* ServerInstance, User* who) +{ + for (user_hash::iterator i = ServerInstance->clientlist->begin(); i != ServerInstance->clientlist->end(); ++i) + { + callerid_data* dat = GetData(i->second, false); + if (!dat) continue; + std::set<User*>& accepting = dat->accepting; + std::set<User*>::iterator i = accepting.find(who); + if (i == accepting.end()) continue; + accepting.erase(i); + } +} + +class CommandAccept : public Command +{ +private: + unsigned int& maxaccepts; +public: + CommandAccept(InspIRCd* Instance, unsigned int& max) : Command(Instance, "ACCEPT", 0, 1), maxaccepts(max) + { + source = "m_callerid.so"; + syntax = "{[+|-]<nicks>}|*}"; + } + + /* Will take any number of nicks, which can be seperated by spaces, commas, or a mix. + * - in front of any nick removes, and an * lists. This effectively means you can do: + * /accept nick1,nick2,nick3 * + * to add 3 nicks and then show your list + */ + CmdResult Handle(const char** parameters, int pcnt, User* user) + { + if (pcnt < 1) + { + /* Command stuff should've dealt with this already */ + return CMD_FAILURE; + } + /* Even if callerid mode is not set, we let them manage their ACCEPT list so that if they go +g they can + * have a list already setup. */ + bool atleastonechange = false; + for (int i = 0; i < pcnt; ++i) + { + const char* arg = parameters[i]; + irc::commasepstream css(arg); + std::string tok; + while (css.GetToken(tok)) + { + if (tok.length() < 1) + continue; + if (tok == "*") + { + if (IS_LOCAL(user)) continue; + ListAccept(user); + } + else if (tok[0] == '-') + { + User* whotoremove = ServerInstance->FindNick(tok.substr(1)); + if (whotoremove) + { + atleastonechange = RemoveAccept(user, whotoremove, false) || atleastonechange; + } + } + else + { + User* whotoadd = ServerInstance->FindNick(tok[0] == '+' ? tok.substr(1) : tok); + if (whotoadd) + { + atleastonechange = AddAccept(user, whotoadd, false) || atleastonechange; + } + else + { + user->WriteServ("401 %s %s :No such nick/channel", user->nick, tok.c_str()); + } + } + } + } + return atleastonechange ? CMD_FAILURE : CMD_SUCCESS; + } + + void ListAccept(User* user) + { + callerid_data* dat = GetData(user, false); + if (dat) + { + for (std::set<User*>::iterator i = dat->accepting.begin(); i != dat->accepting.end(); ++i) + { + user->WriteServ("281 %s %s", user->nick, (*i)->nick); + } + } + user->WriteServ("282 %s :End of ACCEPT list", user->nick); + } + + bool AddAccept(User* user, User* whotoadd, bool quiet) + { + callerid_data* dat = GetData(user, true); + std::set<User*>& accepting = dat->accepting; + if (accepting.size() >= maxaccepts) + { + if (!quiet) user->WriteServ("456 %s :Accept list is full (limit is %d)", user->nick, maxaccepts); + return false; + } + if (!accepting.insert(whotoadd).second) + { + if (!quiet) user->WriteServ("457 %s %s :is already on your accept list", user->nick, whotoadd->nick); + return false; + } + return true; + } + + bool RemoveAccept(User* user, User* whotoremove, bool quiet) + { + callerid_data* dat = GetData(user, false); + if (!dat) + { + if (!quiet) user->WriteServ("458 %s %s :is not on your accept list", user->nick, whotoremove->nick); + return false; + } + std::set<User*>& accepting = dat->accepting; + std::set<User*>::iterator i = accepting.find(whotoremove); + if (i == accepting.end()) + { + if (!quiet) user->WriteServ("458 %s %s :is not on your accept list", user->nick, whotoremove->nick); + return false; + } + accepting.erase(i); + return true; + } +}; + +class ModuleCallerID : public Module +{ +private: + CommandAccept *mycommand; + + // Configuration variables: + unsigned int maxaccepts; // Maximum ACCEPT entries. + bool operoverride; // Operators can override callerid. + bool tracknick; // Allow ACCEPT entries to update with nick changes. + unsigned int notify_cooldown; // Seconds between notifications. + +public: + ModuleCallerID(InspIRCd* Me) : Module(Me) + { + OnRehash(NULL, ""); + mycommand = new CommandAccept(ServerInstance, maxaccepts); + ServerInstance->AddCommand(mycommand); + Implementation eventlist[] = { I_OnRehash, I_OnUserPreNick, I_OnUserQuit, I_On005Numeric, I_OnUserPreNotice, I_OnUserPreMessage }; + ServerInstance->Modules->Attach(eventlist, this, 6); + } + + ~ModuleCallerID() + { + delete mycommand; + } + + Version GetVersion() + { + return Version(1, 0, 0, 0, VF_COMMON | VF_VENDOR, API_VERSION); + } + + void On005Numeric(std::string& output) + { + output += " CALLERID=g"; + } + + int PreText(User* user, User* dest, std::string& text, bool notice) + { + if (!dest->IsModeSet('g')) return 0; + if (operoverride && IS_OPER(user)) return 0; + callerid_data* dat = GetData(dest, true); + std::set<User*>& accepting = dat->accepting; + time_t& lastnotify = dat->lastnotify; + std::set<User*>::iterator i = accepting.find(dest); + if (i == accepting.end()) + { + time_t now = time(NULL); + /* +g and *not* accepted */ + user->WriteServ("716 %s %s :is in +g mode (server-side ignore).", user->nick, dest->nick); + if (now > (lastnotify + (time_t)notify_cooldown)) + { + user->WriteServ("717 %s %s :has been informed that you messaged them.", user->nick, dest->nick); + dest->WriteServ("718 %s %s %s@%s :is messaging you, and you have umode +g", dest->nick, user->nick, user->ident, user->dhost); + lastnotify = now; + } + return 1; + } + return 0; + } + + int OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList &exempt_list) + { + if (IS_LOCAL(user) && target_type == TYPE_USER) + return PreText(user, (User*)dest, text, true); + return 0; + } + + int OnUserPreNotice(User* user, void* dest, int target_type, std::string& text, char status, CUList &exempt_list) + { + if (IS_LOCAL(user) && target_type == TYPE_USER) + return PreText(user, (User*)dest, text, true); + return 0; + } + + int OnUserPreNick(User* user, const std::string& newnick) + { + if (!tracknick) + RemoveFromAllAccepts(ServerInstance, user); + return 0; + } + + void OnUserQuit(User* user, const std::string& message, const std::string& oper_message) + { + RemoveData(user); + RemoveFromAllAccepts(ServerInstance, user); + } + + void OnRehash(User* user, const std::string& parameter) + { + ConfigReader Conf(ServerInstance); + int new_maxaccepts, new_cooldown; + bool new_override, new_track; + new_maxaccepts = Conf.ReadInteger("callerid", "maxaccepts", "16", 0, true); + switch (Conf.GetError()) + { + case 0: break; + case CONF_VALUE_NOT_FOUND: + new_maxaccepts = 16; + break; + case CONF_NOT_A_NUMBER: + if (user) user->WriteServ("NOTICE %s :Invalid maxaccepts value '%s', not a number", Conf.ReadValue("callerid", "maxaccepts", "", 0).c_str()); + throw ModuleException("Invalid maxaccepts value, not a number"); + case CONF_INT_NEGATIVE: + if (user) user->WriteServ("NOTICE %s :Invalid maxaccepts value '%s', negative", Conf.ReadValue("callerid", "maxaccepts", "", 0).c_str()); + throw ModuleException("Invalid maxaccepts value, negative"); + default: + /* Yikes */ + throw ModuleException("Invalid maxaccepts value, unknown config error"); + } + new_override = Conf.ReadFlag("callerid", "operoverride", "0", 0); + if (Conf.GetError() == CONF_VALUE_NOT_FOUND) new_override = false; + new_track = Conf.ReadFlag("callerid", "tracknick", "0", 0); + if (Conf.GetError() == CONF_VALUE_NOT_FOUND) new_track = false; + new_cooldown = Conf.ReadInteger("callerid", "cooldown", "60", 0, true); + switch (Conf.GetError()) + { + case 0: break; + case CONF_VALUE_NOT_FOUND: + new_cooldown = 16; + break; + case CONF_NOT_A_NUMBER: + if (user) user->WriteServ("NOTICE %s :Invalid cooldown value '%s', not a number", Conf.ReadValue("callerid", "maxaccepts", "", 0).c_str()); + throw ModuleException("Invalid cooldown value, not a number"); + case CONF_INT_NEGATIVE: + if (user) user->WriteServ("NOTICE %s :Invalid cooldown value '%s', negative", Conf.ReadValue("callerid", "maxaccepts", "", 0).c_str()); + throw ModuleException("Invalid cooldown value, negative"); + default: + /* Yikes */ + throw ModuleException("Invalid maxaccepts value, unknown config error"); + } + maxaccepts = new_maxaccepts; + notify_cooldown = new_cooldown; + operoverride = new_override; + tracknick = new_track; + } +}; + +MODULE_INIT(ModuleCallerID) + + |