1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2009 InspIRCd Development Team
6 * See: http://wiki.inspircd.org/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
16 /* $ModDesc: Povides support for the /DCCALLOW command */
35 DCCAllow(const std::string &nick, const std::string &hm, const time_t so, const long ln) : nickname(nick), hostmask(hm), set_on(so), length(ln) { }
38 typedef std::vector<User *> userlist;
40 typedef std::vector<DCCAllow> dccallowlist;
42 typedef std::vector<BannedFileList> bannedfilelist;
44 SimpleExtItem<dccallowlist>* ext;
46 class CommandDccallow : public Command
49 CommandDccallow(Module* parent) : Command(parent, "DCCALLOW", 0)
51 syntax = "{[+|-]<nick> <time>|HELP|LIST}";
52 /* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a seperate param */
55 CmdResult Handle(const std::vector<std::string> ¶meters, User *user)
57 /* syntax: DCCALLOW [+|-]<nick> (<time>) */
58 if (!parameters.size())
60 // display current DCCALLOW list
61 DisplayDCCAllowList(user);
64 else if (parameters.size() > 0)
66 char action = *parameters[0].c_str();
68 // if they didn't specify an action, this is probably a command
69 if (action != '+' && action != '-')
71 if (!strcasecmp(parameters[0].c_str(), "LIST"))
73 // list current DCCALLOW list
74 DisplayDCCAllowList(user);
77 else if (!strcasecmp(parameters[0].c_str(), "HELP"))
85 user->WriteNumeric(998, "%s :DCCALLOW command not understood. For help on DCCALLOW, type /DCCALLOW HELP", user->nick.c_str());
90 std::string nick = parameters[0].substr(1);
91 User *target = ServerInstance->FindNick(nick);
98 // check if it contains any entries
102 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
104 // search through list
105 if (i->nickname == target->nick)
108 user->WriteNumeric(995, "%s %s :Removed %s from your DCCALLOW list", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
114 else if (action == '+')
118 user->WriteNumeric(996, "%s %s :You cannot add yourself to your own DCCALLOW list!", user->nick.c_str(), user->nick.c_str());
125 dl = new dccallowlist;
127 // add this user to the userlist
131 for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)
133 if (k->nickname == target->nick)
135 user->WriteNumeric(996, "%s %s :%s is already on your DCCALLOW list", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
140 std::string mask = std::string(target->nick)+"!"+std::string(target->ident)+"@"+std::string(target->dhost);
142 std::string default_length = Conf.ReadValue("dccallow", "length", 0);
145 if (parameters.size() < 2)
147 length = ServerInstance->Duration(default_length);
149 else if (!atoi(parameters[1].c_str()))
155 length = ServerInstance->Duration(parameters[1]);
158 if (!ServerInstance->IsValidMask(mask.c_str()))
163 dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));
167 user->WriteNumeric(993, "%s %s :Added %s to DCCALLOW list for %ld seconds", user->nick.c_str(), user->nick.c_str(), target->nick.c_str(), length);
171 user->WriteNumeric(994, "%s %s :Added %s to DCCALLOW list for this session", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
180 // nick doesn't exist
181 user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), nick.c_str());
188 RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
190 return ROUTE_BROADCAST;
193 void DisplayHelp(User* user)
195 user->WriteNumeric(998, "%s :DCCALLOW [<+|->nick [time]] [list] [help]", user->nick.c_str());
196 user->WriteNumeric(998, "%s :You may allow DCCs from specific users by specifying a", user->nick.c_str());
197 user->WriteNumeric(998, "%s :DCC allow for the user you want to receive DCCs from.", user->nick.c_str());
198 user->WriteNumeric(998, "%s :For example, to allow the user Brain to send you inspircd.exe", user->nick.c_str());
199 user->WriteNumeric(998, "%s :you would type:", user->nick.c_str());
200 user->WriteNumeric(998, "%s :/DCCALLOW +Brain", user->nick.c_str());
201 user->WriteNumeric(998, "%s :Brain would then be able to send you files. They would have to", user->nick.c_str());
202 user->WriteNumeric(998, "%s :resend the file again if the server gave them an error message", user->nick.c_str());
203 user->WriteNumeric(998, "%s :before you added them to your DCCALLOW list.", user->nick.c_str());
204 user->WriteNumeric(998, "%s :DCCALLOW entries will be temporary by default, if you want to add", user->nick.c_str());
205 user->WriteNumeric(998, "%s :them to your DCCALLOW list until you leave IRC, type:", user->nick.c_str());
206 user->WriteNumeric(998, "%s :/DCCALLOW +Brain 0", user->nick.c_str());
207 user->WriteNumeric(998, "%s :To remove the user from your DCCALLOW list, type:", user->nick.c_str());
208 user->WriteNumeric(998, "%s :/DCCALLOW -Brain", user->nick.c_str());
209 user->WriteNumeric(998, "%s :To see the users in your DCCALLOW list, type:", user->nick.c_str());
210 user->WriteNumeric(998, "%s :/DCCALLOW LIST", user->nick.c_str());
211 user->WriteNumeric(998, "%s :NOTE: If the user leaves IRC or changes their nickname", user->nick.c_str());
212 user->WriteNumeric(998, "%s : they will be removed from your DCCALLOW list.", user->nick.c_str());
213 user->WriteNumeric(998, "%s : your DCCALLOW list will be deleted when you leave IRC.", user->nick.c_str());
214 user->WriteNumeric(999, "%s :End of DCCALLOW HELP", user->nick.c_str());
217 void DisplayDCCAllowList(User* user)
219 // display current DCCALLOW list
220 user->WriteNumeric(990, "%s :Users on your DCCALLOW list:", user->nick.c_str());
225 for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)
227 user->WriteNumeric(991, "%s %s :%s (%s)", user->nick.c_str(), user->nick.c_str(), c->nickname.c_str(), c->hostmask.c_str());
231 user->WriteNumeric(992, "%s :End of DCCALLOW list", user->nick.c_str());
236 class ModuleDCCAllow : public Module
244 ext = new SimpleExtItem<dccallowlist>("dccallow", this);
245 ServerInstance->Extensions.Register(ext);
246 ServerInstance->AddCommand(&cmd);
248 Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserQuit, I_OnUserPreNick, I_OnRehash };
249 ServerInstance->Modules->Attach(eventlist, this, 5);
253 virtual void OnRehash(User* user)
258 virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
260 dccallowlist* udl = ext->get(user);
262 // remove their DCCALLOW list if they have one
265 RemoveFromUserlist(user);
268 // remove them from any DCCALLOW lists
269 // they are currently on
273 virtual ModResult OnUserPreNick(User* user, const std::string &newnick)
276 return MOD_RES_PASSTHRU;
279 virtual ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
281 return OnUserPreNotice(user, dest, target_type, text, status, exempt_list);
284 virtual ModResult OnUserPreNotice(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
287 return MOD_RES_PASSTHRU;
289 if (target_type == TYPE_USER)
291 User* u = (User*)dest;
293 /* Always allow a user to dcc themselves (although... why?) */
295 return MOD_RES_PASSTHRU;
297 if ((text.length()) && (text[0] == '\1'))
301 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
302 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
304 if (strncmp(text.c_str(), "\1DCC ", 5) == 0)
307 if (dl && dl->size())
309 for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)
310 if (InspIRCd::Match(user->GetFullHost(), iter->hostmask))
311 return MOD_RES_PASSTHRU;
315 std::stringstream ss(text);
317 std::vector<std::string> tokens;
320 tokens.push_back(buf);
322 irc::string type = tokens[1].c_str();
325 bool blockchat = Conf.ReadFlag("dccallow", "blockchat", 0);
329 std::string defaultaction = Conf.ReadValue("dccallow", "action", 0);
330 std::string filename = tokens[2];
333 for (unsigned int i = 0; i < bfl.size(); i++)
335 if (InspIRCd::Match(filename, bfl[i].filemask, ascii_case_insensitive_map))
337 /* We have a matching badfile entry, override whatever the default action is */
338 if (bfl[i].action == "allow")
339 return MOD_RES_PASSTHRU;
348 /* only follow the default action if no badfile matches were found above */
349 if ((!found) && (defaultaction == "allow"))
350 return MOD_RES_PASSTHRU;
352 user->WriteServ("NOTICE %s :The user %s is not accepting DCC SENDs from you. Your file %s was not sent.", user->nick.c_str(), u->nick.c_str(), filename.c_str());
353 u->WriteServ("NOTICE %s :%s (%s@%s) attempted to send you a file named %s, which was blocked.", u->nick.c_str(), user->nick.c_str(), user->ident.c_str(), user->dhost.c_str(), filename.c_str());
354 u->WriteServ("NOTICE %s :If you trust %s and were expecting this, you can type /DCCALLOW HELP for information on the DCCALLOW system.", u->nick.c_str(), user->nick.c_str());
357 else if ((type == "CHAT") && (blockchat))
359 user->WriteServ("NOTICE %s :The user %s is not accepting DCC CHAT requests from you.", user->nick.c_str(), u->nick.c_str());
360 u->WriteServ("NOTICE %s :%s (%s@%s) attempted to initiate a DCC CHAT session, which was blocked.", u->nick.c_str(), user->nick.c_str(), user->ident.c_str(), user->dhost.c_str());
361 u->WriteServ("NOTICE %s :If you trust %s and were expecting this, you can type /DCCALLOW HELP for information on the DCCALLOW system.", u->nick.c_str(), user->nick.c_str());
367 return MOD_RES_PASSTHRU;
372 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
374 User* u = (User*)(*iter);
380 dccallowlist::iterator iter2 = dl->begin();
381 while (iter2 != dl->end())
383 if (iter2->length != 0 && (iter2->set_on + iter2->length) <= ServerInstance->Time())
385 u->WriteNumeric(997, "%s %s :DCCALLOW entry for %s has expired", u->nick.c_str(), u->nick.c_str(), iter2->nickname.c_str());
386 iter2 = dl->erase(iter2);
397 RemoveFromUserlist(u);
402 void RemoveNick(User* user)
404 /* Iterate through all DCCALLOW lists and remove user */
405 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
407 User *u = (User*)(*iter);
413 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
415 if (i->nickname == user->nick)
418 u->WriteServ("NOTICE %s :%s left the network or changed their nickname and has been removed from your DCCALLOW list", u->nick.c_str(), i->nickname.c_str());
419 u->WriteNumeric(995, "%s %s :Removed %s from your DCCALLOW list", u->nick.c_str(), u->nick.c_str(), i->nickname.c_str());
428 RemoveFromUserlist(u);
433 void RemoveFromUserlist(User *user)
435 // remove user from userlist
436 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
438 User* u = (User*)(*j);
451 for (int i = 0; i < Conf.Enumerate("banfile"); i++)
454 std::string fileglob = Conf.ReadValue("banfile", "pattern", i);
455 std::string action = Conf.ReadValue("banfile", "action", i);
456 bf.filemask = fileglob;
463 virtual ~ModuleDCCAllow()
468 virtual Version GetVersion()
470 return Version("Povides support for the /DCCALLOW command", VF_COMMON | VF_VENDOR);
474 MODULE_INIT(ModuleDCCAllow)