1 /* +------------------------------------+
2 * | Inspire Internet Relay Chat Daemon |
3 * +------------------------------------+
5 * InspIRCd: (C) 2002-2007 InspIRCd Development Team
6 * See: http://www.inspircd.org/wiki/index.php/Credits
8 * This program is free but copyrighted software; see
9 * the file COPYING for details.
11 * ---------------------------------------------------
19 /* $ModDesc: Povides support for the /DCCALLOW command */
21 static ConfigReader *Conf;
40 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) { }
43 typedef std::vector<userrec *> userlist;
45 typedef std::vector<DCCAllow> dccallowlist;
47 typedef std::vector<BannedFileList> bannedfilelist;
50 class cmd_dccallow : public command_t
53 cmd_dccallow(InspIRCd* Me) : command_t(Me, "DCCALLOW", 0, 0)
55 this->source = "m_dccallow.so";
56 syntax = "{[+|-]<nick> <time>|HELP|LIST}";
59 CmdResult Handle(const char **parameters, int pcnt, userrec *user)
61 /* syntax: DCCALLOW [+|-]<nick> (<time>) */
64 // display current DCCALLOW list
65 DisplayDCCAllowList(user);
70 char action = *parameters[0];
72 // if they didn't specify an action, this is probably a command
73 if (action != '+' && action != '-')
75 if (!strcasecmp(parameters[0], "LIST"))
77 // list current DCCALLOW list
78 DisplayDCCAllowList(user);
81 else if (!strcasecmp(parameters[0], "HELP"))
89 std::string nick = parameters[0] + 1;
90 userrec *target = ServerInstance->FindNick(nick);
97 user->GetExt("dccallow_list", dl);
98 // check if it contains any entries
103 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
105 // search through list
106 if (i->nickname == target->nick)
109 user->WriteServ("995 %s %s :Removed %s from your DCCALLOW list", user->nick, user->nick, target->nick);
118 user->Shrink("dccallow_list");
120 // remove from userlist
121 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
123 userrec* u = (userrec*)(*j);
132 else if (action == '+')
134 // fetch current DCCALLOW list
135 user->GetExt("dccallow_list", dl);
136 // they don't have one, create it
139 dl = new dccallowlist;
140 user->Extend("dccallow_list", dl);
141 // add this user to the userlist
144 for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)
146 if (k->nickname == target->nick)
148 user->WriteServ("996 %s %s :%s is already on your DCCALLOW list", user->nick, user->nick, target->nick);
151 else if (ServerInstance->MatchText(user->GetFullHost(), k->hostmask))
153 user->WriteServ("996 %s %s :You cannot add yourself to your own DCCALLOW list!", user->nick, user->nick);
158 std::string mask = std::string(target->nick)+"!"+std::string(target->ident)+"@"+std::string(target->dhost);
159 std::string default_length = Conf->ReadValue("dccallow", "length", 0);
164 length = ServerInstance->Duration(default_length);
166 else if (!atoi(parameters[1]))
172 length = ServerInstance->Duration(parameters[1]);
175 if (!ServerInstance->IsValidMask(mask.c_str()))
180 dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));
184 user->WriteServ("993 %s %s :Added %s to DCCALLOW list for %d seconds", user->nick, user->nick, target->nick, length);
188 user->WriteServ("994 %s %s :Added %s to DCCALLOW list for this session", user->nick, user->nick, target->nick);
197 // nick doesn't exist
198 user->WriteServ("401 %s %s :No such nick/channel", user->nick, nick.c_str());
205 void DisplayHelp(userrec* user)
207 user->WriteServ("998 %s :DCCALLOW [<+|->nick [time]] [list] [help]", user->nick);
208 user->WriteServ("998 %s :You may allow DCCs from specific users by specifying a", user->nick);
209 user->WriteServ("998 %s :DCC allow for the user you want to receive DCCs from.", user->nick);
210 user->WriteServ("998 %s :For example, to allow the user Brain to send you inspircd.exe", user->nick);
211 user->WriteServ("998 %s :you would type:", user->nick);
212 user->WriteServ("998 %s :/DCCALLOW +Brain", user->nick);
213 user->WriteServ("998 %s :Brain would then be able to send you files. They would have to", user->nick);
214 user->WriteServ("998 %s :resend the file again if the server gave them an error message", user->nick);
215 user->WriteServ("998 %s :before you added them to your DCCALLOW list.", user->nick);
216 user->WriteServ("998 %s :DCCALLOW entries will be temporary by default, if you want to add", user->nick);
217 user->WriteServ("998 %s :them to your DCCALLOW list until you leave IRC, type:", user->nick);
218 user->WriteServ("998 %s :/DCCALLOW +Brain 0", user->nick);
219 user->WriteServ("998 %s :To remove the user from your DCCALLOW list, type:", user->nick);
220 user->WriteServ("998 %s :/DCCALLOW -Brain", user->nick);
221 user->WriteServ("998 %s :To see the users in your DCCALLOW list, type:", user->nick);
222 user->WriteServ("998 %s :/DCCALLOW LIST", user->nick);
223 user->WriteServ("998 %s :NOTE: If the user leaves IRC or changes their nickname", user->nick);
224 user->WriteServ("998 %s : they will be removed from your DCCALLOW list.", user->nick);
225 user->WriteServ("998 %s : your DCCALLOW list will be deleted when you leave IRC.", user->nick);
226 user->WriteServ("999 %s :End of DCCALLOW HELP", user->nick);
229 void DisplayDCCAllowList(userrec* user)
231 // display current DCCALLOW list
232 user->WriteServ("990 %s :Users on your DCCALLOW list:", user->nick);
233 user->GetExt("dccallow_list", dl);
237 for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)
239 user->WriteServ("991 %s %s :%s (%s)", user->nick, user->nick, c->nickname.c_str(), c->hostmask.c_str());
243 user->WriteServ("992 %s :End of DCCALLOW list", user->nick);
248 class ModuleDCCAllow : public Module
250 cmd_dccallow* mycommand;
253 ModuleDCCAllow(InspIRCd* Me)
256 Conf = new ConfigReader(ServerInstance);
257 mycommand = new cmd_dccallow(ServerInstance);
258 ServerInstance->AddCommand(mycommand);
262 void Implements(char* List)
264 List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnUserQuit] = List[I_OnUserPreNick] = List[I_OnRehash] = 1;
267 virtual void OnRehash(userrec* user, const std::string ¶meter)
270 Conf = new ConfigReader(ServerInstance);
273 virtual void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)
277 // remove their DCCALLOW list if they have one
278 user->GetExt("dccallow_list", dl);
282 user->Shrink("dccallow_list");
283 RemoveFromUserlist(user);
286 // remove them from any DCCALLOW lists
287 // they are currently on
292 virtual int OnUserPreNick(userrec* user, const std::string &newnick)
298 virtual int OnUserPreMessage(userrec* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
300 return OnUserPreNotice(user, dest, target_type, text, status, exempt_list);
303 virtual int OnUserPreNotice(userrec* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
308 if (target_type == TYPE_USER)
310 userrec* u = (userrec*)dest;
312 /* Always allow a user to dcc themselves (although... why?) */
316 if ((text.length()) && (text[0] == '\1'))
320 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
321 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
323 if (strncmp(text.c_str(), "\1DCC ", 5) == 0)
325 u->GetExt("dccallow_list", dl);
327 if (dl && dl->size())
329 for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)
330 if (ServerInstance->MatchText(user->GetFullHost(), iter->hostmask))
335 std::stringstream ss(text);
337 std::vector<std::string> tokens;
340 tokens.push_back(buf);
342 irc::string type = tokens[1].c_str();
344 bool blockchat = Conf->ReadFlag("dccallow", "blockchat", 0);
348 std::string defaultaction = Conf->ReadValue("dccallow", "action", 0);
349 std::string filename = tokens[2];
351 if (defaultaction == "allow")
354 for (unsigned int i = 0; i < bfl.size(); i++)
356 if (ServerInstance->MatchText(filename, bfl[i].filemask))
358 if (bfl[i].action == "allow")
363 if (defaultaction == "allow")
366 user->WriteServ("NOTICE %s :The user %s is not accepting DCC SENDs from you. Your file %s was not sent.", user->nick, u->nick, filename.c_str());
367 u->WriteServ("NOTICE %s :%s (%s@%s) attempted to send you a file named %s, which was blocked.", u->nick, user->nick, user->ident, user->dhost, filename.c_str());
368 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, user->nick);
372 else if ((type == "CHAT") && (blockchat))
374 user->WriteServ("NOTICE %s :The user %s is not accepting DCC CHAT requests from you.", user->nick, u->nick);
375 u->WriteServ("NOTICE %s :%s (%s@%s) attempted to initiate a DCC CHAT session, which was blocked.", u->nick, user->nick, user->ident, user->dhost);
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, user->nick);
387 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
389 userrec* u = (userrec*)(*iter);
390 u->GetExt("dccallow_list", dl);
396 dccallowlist::iterator iter = dl->begin();
397 while (iter != dl->end())
399 if ((iter->set_on + iter->length) <= ServerInstance->Time())
401 u->WriteServ("997 %s %s :DCCALLOW entry for %s has expired", u->nick, u->nick, iter->nickname.c_str());
402 iter = dl->erase(iter);
413 RemoveFromUserlist(u);
418 void RemoveNick(userrec* user)
420 /* Iterate through all DCCALLOW lists and remove user */
421 for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)
423 userrec *u = (userrec*)(*iter);
424 u->GetExt("dccallow_list", dl);
430 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
432 if (i->nickname == user->nick)
435 u->WriteServ("NOTICE %s :%s left the network or changed their nickname and has been removed from your DCCALLOW list", u->nick, i->nickname.c_str());
436 u->WriteServ("995 %s %s :Removed %s from your DCCALLOW list", u->nick, u->nick, i->nickname.c_str());
445 RemoveFromUserlist(u);
450 void RemoveFromUserlist(userrec *user)
452 // remove user from userlist
453 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
455 userrec* u = (userrec*)(*j);
467 for (int i = 0; i < Conf->Enumerate("banfile"); i++)
470 std::string fileglob = Conf->ReadValue("banfile", "pattern", i);
471 std::string action = Conf->ReadValue("banfile", "action", i);
472 bf.filemask = fileglob;
479 virtual ~ModuleDCCAllow()
483 virtual Version GetVersion()
485 return Version(1,1,0,0,VF_COMMON|VF_VENDOR,API_VERSION);
489 MODULE_INIT(ModuleDCCAllow);