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 */
18 static ConfigReader *Conf;
20 class BannedFileList : public classbase
27 class DCCAllow : public classbase
37 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) { }
40 typedef std::vector<User *> userlist;
42 typedef std::vector<DCCAllow> dccallowlist;
44 typedef std::vector<BannedFileList> bannedfilelist;
47 class CommandDccallow : public Command
50 CommandDccallow(InspIRCd* Me, Module* parent) : Command(Me, parent, "DCCALLOW", 0, 0)
52 syntax = "{[+|-]<nick> <time>|HELP|LIST}";
53 /* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a seperate param */
56 CmdResult Handle(const std::vector<std::string> ¶meters, User *user)
58 /* syntax: DCCALLOW [+|-]<nick> (<time>) */
59 if (!parameters.size())
61 // display current DCCALLOW list
62 DisplayDCCAllowList(user);
65 else if (parameters.size() > 0)
67 char action = *parameters[0].c_str();
69 // if they didn't specify an action, this is probably a command
70 if (action != '+' && action != '-')
72 if (!strcasecmp(parameters[0].c_str(), "LIST"))
74 // list current DCCALLOW list
75 DisplayDCCAllowList(user);
78 else if (!strcasecmp(parameters[0].c_str(), "HELP"))
86 user->WriteNumeric(998, "%s :DCCALLOW command not understood. For help on DCCALLOW, type /DCCALLOW HELP", user->nick.c_str());
91 std::string nick = parameters[0].substr(1);
92 User *target = ServerInstance->FindNick(nick);
99 // check if it contains any entries
100 if (user->GetExt("dccallow_list", dl))
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());
116 user->Shrink("dccallow_list");
118 // remove from userlist
119 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
121 User* u = (User*)(*j);
130 else if (action == '+')
134 user->WriteNumeric(996, "%s %s :You cannot add yourself to your own DCCALLOW list!", user->nick.c_str(), user->nick.c_str());
138 if (!user->GetExt("dccallow_list", dl))
140 dl = new dccallowlist;
141 user->Extend("dccallow_list", dl);
142 // add this user to the userlist
146 for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)
148 if (k->nickname == target->nick)
150 user->WriteNumeric(996, "%s %s :%s is already on your DCCALLOW list", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
155 std::string mask = std::string(target->nick)+"!"+std::string(target->ident)+"@"+std::string(target->dhost);
156 std::string default_length = Conf->ReadValue("dccallow", "length", 0);
159 if (parameters.size() < 2)
161 length = ServerInstance->Duration(default_length);
163 else if (!atoi(parameters[1].c_str()))
169 length = ServerInstance->Duration(parameters[1]);
172 if (!ServerInstance->IsValidMask(mask.c_str()))
177 dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));
181 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);
185 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());
194 // nick doesn't exist
195 user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), nick.c_str());
202 RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
204 return ROUTE_BROADCAST;
207 void DisplayHelp(User* user)
209 user->WriteNumeric(998, "%s :DCCALLOW [<+|->nick [time]] [list] [help]", user->nick.c_str());
210 user->WriteNumeric(998, "%s :You may allow DCCs from specific users by specifying a", user->nick.c_str());
211 user->WriteNumeric(998, "%s :DCC allow for the user you want to receive DCCs from.", user->nick.c_str());
212 user->WriteNumeric(998, "%s :For example, to allow the user Brain to send you inspircd.exe", user->nick.c_str());
213 user->WriteNumeric(998, "%s :you would type:", user->nick.c_str());
214 user->WriteNumeric(998, "%s :/DCCALLOW +Brain", user->nick.c_str());
215 user->WriteNumeric(998, "%s :Brain would then be able to send you files. They would have to", user->nick.c_str());
216 user->WriteNumeric(998, "%s :resend the file again if the server gave them an error message", user->nick.c_str());
217 user->WriteNumeric(998, "%s :before you added them to your DCCALLOW list.", user->nick.c_str());
218 user->WriteNumeric(998, "%s :DCCALLOW entries will be temporary by default, if you want to add", user->nick.c_str());
219 user->WriteNumeric(998, "%s :them to your DCCALLOW list until you leave IRC, type:", user->nick.c_str());
220 user->WriteNumeric(998, "%s :/DCCALLOW +Brain 0", user->nick.c_str());
221 user->WriteNumeric(998, "%s :To remove the user from your DCCALLOW list, type:", user->nick.c_str());
222 user->WriteNumeric(998, "%s :/DCCALLOW -Brain", user->nick.c_str());
223 user->WriteNumeric(998, "%s :To see the users in your DCCALLOW list, type:", user->nick.c_str());
224 user->WriteNumeric(998, "%s :/DCCALLOW LIST", user->nick.c_str());
225 user->WriteNumeric(998, "%s :NOTE: If the user leaves IRC or changes their nickname", user->nick.c_str());
226 user->WriteNumeric(998, "%s : they will be removed from your DCCALLOW list.", user->nick.c_str());
227 user->WriteNumeric(998, "%s : your DCCALLOW list will be deleted when you leave IRC.", user->nick.c_str());
228 user->WriteNumeric(999, "%s :End of DCCALLOW HELP", user->nick.c_str());
231 void DisplayDCCAllowList(User* user)
233 // display current DCCALLOW list
234 user->WriteNumeric(990, "%s :Users on your DCCALLOW list:", user->nick.c_str());
236 if (user->GetExt("dccallow_list", dl))
238 for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)
240 user->WriteNumeric(991, "%s %s :%s (%s)", user->nick.c_str(), user->nick.c_str(), c->nickname.c_str(), c->hostmask.c_str());
244 user->WriteNumeric(992, "%s :End of DCCALLOW list", user->nick.c_str());
249 class ModuleDCCAllow : public Module
254 ModuleDCCAllow(InspIRCd* Me)
255 : Module(Me), cmd(Me, this)
257 Conf = new ConfigReader(ServerInstance);
258 ServerInstance->AddCommand(&cmd);
260 Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserQuit, I_OnUserPreNick, I_OnRehash };
261 ServerInstance->Modules->Attach(eventlist, this, 5);
265 virtual void OnRehash(User* user)
268 Conf = new ConfigReader(ServerInstance);
272 virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
276 // remove their DCCALLOW list if they have one
277 if (user->GetExt("dccallow_list", udl))
280 user->Shrink("dccallow_list");
281 RemoveFromUserlist(user);
284 // remove them from any DCCALLOW lists
285 // they are currently on
290 virtual ModResult OnUserPreNick(User* user, const std::string &newnick)
293 return MOD_RES_PASSTHRU;
296 virtual ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
298 return OnUserPreNotice(user, dest, target_type, text, status, exempt_list);
301 virtual ModResult OnUserPreNotice(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
304 return MOD_RES_PASSTHRU;
306 if (target_type == TYPE_USER)
308 User* u = (User*)dest;
310 /* Always allow a user to dcc themselves (although... why?) */
312 return MOD_RES_PASSTHRU;
314 if ((text.length()) && (text[0] == '\1'))
318 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
319 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
321 if (strncmp(text.c_str(), "\1DCC ", 5) == 0)
323 if (u->GetExt("dccallow_list", dl) && dl->size())
325 for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)
326 if (InspIRCd::Match(user->GetFullHost(), iter->hostmask))
327 return MOD_RES_PASSTHRU;
331 std::stringstream ss(text);
333 std::vector<std::string> tokens;
336 tokens.push_back(buf);
338 irc::string type = tokens[1].c_str();
340 bool blockchat = Conf->ReadFlag("dccallow", "blockchat", 0);
344 std::string defaultaction = Conf->ReadValue("dccallow", "action", 0);
345 std::string filename = tokens[2];
348 for (unsigned int i = 0; i < bfl.size(); i++)
350 if (InspIRCd::Match(filename, bfl[i].filemask, ascii_case_insensitive_map))
352 /* We have a matching badfile entry, override whatever the default action is */
353 if (bfl[i].action == "allow")
354 return MOD_RES_PASSTHRU;
363 /* only follow the default action if no badfile matches were found above */
364 if ((!found) && (defaultaction == "allow"))
365 return MOD_RES_PASSTHRU;
367 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());
368 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());
369 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());
372 else if ((type == "CHAT") && (blockchat))
374 user->WriteServ("NOTICE %s :The user %s is not accepting DCC CHAT requests from you.", user->nick.c_str(), u->nick.c_str());
375 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());
376 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());
382 return MOD_RES_PASSTHRU;
387 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
389 User* u = (User*)(*iter);
390 if (u->GetExt("dccallow_list", dl))
394 dccallowlist::iterator iter2 = dl->begin();
395 while (iter2 != dl->end())
397 if (iter2->length != 0 && (iter2->set_on + iter2->length) <= ServerInstance->Time())
399 u->WriteNumeric(997, "%s %s :DCCALLOW entry for %s has expired", u->nick.c_str(), u->nick.c_str(), iter2->nickname.c_str());
400 iter2 = dl->erase(iter2);
411 RemoveFromUserlist(u);
416 void RemoveNick(User* user)
418 /* Iterate through all DCCALLOW lists and remove user */
419 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
421 User *u = (User*)(*iter);
422 if (u->GetExt("dccallow_list", dl))
426 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
428 if (i->nickname == user->nick)
431 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());
432 u->WriteNumeric(995, "%s %s :Removed %s from your DCCALLOW list", u->nick.c_str(), u->nick.c_str(), i->nickname.c_str());
441 RemoveFromUserlist(u);
446 void RemoveFromUserlist(User *user)
448 // remove user from userlist
449 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
451 User* u = (User*)(*j);
463 for (int i = 0; i < Conf->Enumerate("banfile"); i++)
466 std::string fileglob = Conf->ReadValue("banfile", "pattern", i);
467 std::string action = Conf->ReadValue("banfile", "action", i);
468 bf.filemask = fileglob;
475 virtual ~ModuleDCCAllow()
481 virtual Version GetVersion()
483 return Version("$Id$", VF_COMMON | VF_VENDOR, API_VERSION);
487 MODULE_INIT(ModuleDCCAllow)