2 * InspIRCd -- Internet Relay Chat Daemon
4 * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
5 * Copyright (C) 2008 John Brooks <john.brooks@dereferenced.net>
6 * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
7 * Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
8 * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
9 * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
10 * Copyright (C) 2006 Jamie ??? <???@???>
12 * This file is part of InspIRCd. InspIRCd is free software: you can
13 * redistribute it and/or modify it under the terms of the GNU General Public
14 * License as published by the Free Software Foundation, version 2.
16 * This program is distributed in the hope that it will be useful, but WITHOUT
17 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
18 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
21 * You should have received a copy of the GNU General Public License
22 * along with this program. If not, see <http://www.gnu.org/licenses/>.
45 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) { }
48 typedef std::vector<User *> userlist;
50 typedef std::vector<DCCAllow> dccallowlist;
52 typedef std::vector<BannedFileList> bannedfilelist;
54 typedef SimpleExtItem<dccallowlist> DCCAllowExt;
56 class CommandDccallow : public Command
61 CommandDccallow(Module* parent, DCCAllowExt& Ext)
62 : Command(parent, "DCCALLOW", 0)
65 syntax = "[(+|-)<nick> [<time>]]|[LIST|HELP]";
66 /* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a seperate param */
69 CmdResult Handle(const std::vector<std::string> ¶meters, User *user)
71 /* syntax: DCCALLOW [+|-]<nick> (<time>) */
72 if (!parameters.size())
74 // display current DCCALLOW list
75 DisplayDCCAllowList(user);
78 else if (parameters.size() > 0)
80 char action = *parameters[0].c_str();
82 // if they didn't specify an action, this is probably a command
83 if (action != '+' && action != '-')
85 if (!strcasecmp(parameters[0].c_str(), "LIST"))
87 // list current DCCALLOW list
88 DisplayDCCAllowList(user);
91 else if (!strcasecmp(parameters[0].c_str(), "HELP"))
99 user->WriteNumeric(998, ":DCCALLOW command not understood. For help on DCCALLOW, type /DCCALLOW HELP");
104 std::string nick(parameters[0], 1);
105 User *target = ServerInstance->FindNickOnly(nick);
107 if ((target) && (!IS_SERVER(target)) && (!target->quitting) && (target->registered == REG_ALL))
112 // check if it contains any entries
116 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
118 // search through list
119 if (i->nickname == target->nick)
122 user->WriteNumeric(995, "%s :Removed %s from your DCCALLOW list", user->nick.c_str(), target->nick.c_str());
128 else if (action == '+')
132 user->WriteNumeric(996, "%s :You cannot add yourself to your own DCCALLOW list!", user->nick.c_str());
139 dl = new dccallowlist;
141 // add this user to the userlist
145 for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)
147 if (k->nickname == target->nick)
149 user->WriteNumeric(996, "%s :%s is already on your DCCALLOW list", user->nick.c_str(), target->nick.c_str());
154 std::string mask = target->nick+"!"+target->ident+"@"+target->dhost;
155 std::string default_length = ServerInstance->Config->ConfValue("dccallow")->getString("length");
157 unsigned long length;
158 if (parameters.size() < 2)
160 length = InspIRCd::Duration(default_length);
162 else if (!atoi(parameters[1].c_str()))
168 length = InspIRCd::Duration(parameters[1]);
171 if (!InspIRCd::IsValidMask(mask))
176 dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));
180 user->WriteNumeric(993, "%s :Added %s to DCCALLOW list for %ld seconds", user->nick.c_str(), target->nick.c_str(), length);
184 user->WriteNumeric(994, "%s :Added %s to DCCALLOW list for this session", user->nick.c_str(), target->nick.c_str());
193 // nick doesn't exist
194 user->WriteNumeric(401, "%s :No such nick/channel", nick.c_str());
201 RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
203 return ROUTE_BROADCAST;
206 void DisplayHelp(User* user)
208 user->WriteNumeric(998, ":DCCALLOW [(+|-)<nick> [<time>]]|[LIST|HELP]");
209 user->WriteNumeric(998, ":You may allow DCCs from specific users by specifying a");
210 user->WriteNumeric(998, ":DCC allow for the user you want to receive DCCs from.");
211 user->WriteNumeric(998, ":For example, to allow the user Brain to send you inspircd.exe");
212 user->WriteNumeric(998, ":you would type:");
213 user->WriteNumeric(998, ":/DCCALLOW +Brain");
214 user->WriteNumeric(998, ":Brain would then be able to send you files. They would have to");
215 user->WriteNumeric(998, ":resend the file again if the server gave them an error message");
216 user->WriteNumeric(998, ":before you added them to your DCCALLOW list.");
217 user->WriteNumeric(998, ":DCCALLOW entries will be temporary by default, if you want to add");
218 user->WriteNumeric(998, ":them to your DCCALLOW list until you leave IRC, type:");
219 user->WriteNumeric(998, ":/DCCALLOW +Brain 0");
220 user->WriteNumeric(998, ":To remove the user from your DCCALLOW list, type:");
221 user->WriteNumeric(998, ":/DCCALLOW -Brain");
222 user->WriteNumeric(998, ":To see the users in your DCCALLOW list, type:");
223 user->WriteNumeric(998, ":/DCCALLOW LIST");
224 user->WriteNumeric(998, ":NOTE: If the user leaves IRC or changes their nickname");
225 user->WriteNumeric(998, ": they will be removed from your DCCALLOW list.");
226 user->WriteNumeric(998, ": your DCCALLOW list will be deleted when you leave IRC.");
227 user->WriteNumeric(999, ":End of DCCALLOW HELP");
229 LocalUser* localuser = IS_LOCAL(user);
231 localuser->CommandFloodPenalty += 4000;
234 void DisplayDCCAllowList(User* user)
236 // display current DCCALLOW list
237 user->WriteNumeric(990, ":Users on your DCCALLOW list:");
242 for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)
244 user->WriteNumeric(991, "%s :%s (%s)", user->nick.c_str(), c->nickname.c_str(), c->hostmask.c_str());
248 user->WriteNumeric(992, ":End of DCCALLOW list");
253 class ModuleDCCAllow : public Module
260 : ext("dccallow", ExtensionItem::EXT_USER, this)
265 void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message) CXX11_OVERRIDE
267 dccallowlist* udl = ext.get(user);
269 // remove their DCCALLOW list if they have one
271 stdalgo::erase(ul, user);
273 // remove them from any DCCALLOW lists
274 // they are currently on
278 void OnUserPostNick(User* user, const std::string &oldnick) CXX11_OVERRIDE
283 ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string& text, char status, CUList& exempt_list, MessageType msgtype) CXX11_OVERRIDE
286 return MOD_RES_PASSTHRU;
288 if (target_type == TYPE_USER)
290 User* u = (User*)dest;
292 /* Always allow a user to dcc themselves (although... why?) */
294 return MOD_RES_PASSTHRU;
296 if ((text.length()) && (text[0] == '\1'))
300 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
301 // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
303 if (strncmp(text.c_str(), "\1DCC ", 5) == 0)
306 if (dl && dl->size())
308 for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)
309 if (InspIRCd::Match(user->GetFullHost(), iter->hostmask))
310 return MOD_RES_PASSTHRU;
314 std::stringstream ss(text);
316 std::vector<std::string> tokens;
319 tokens.push_back(buf);
321 irc::string type = tokens[1].c_str();
323 ConfigTag* conftag = ServerInstance->Config->ConfValue("dccallow");
324 bool blockchat = conftag->getBool("blockchat");
328 std::string defaultaction = conftag->getString("action");
329 std::string filename = tokens[2];
332 for (unsigned int i = 0; i < bfl.size(); i++)
334 if (InspIRCd::Match(filename, bfl[i].filemask, ascii_case_insensitive_map))
336 /* We have a matching badfile entry, override whatever the default action is */
337 if (bfl[i].action == "allow")
338 return MOD_RES_PASSTHRU;
347 /* only follow the default action if no badfile matches were found above */
348 if ((!found) && (defaultaction == "allow"))
349 return MOD_RES_PASSTHRU;
351 user->WriteNotice("The user " + u->nick + " is not accepting DCC SENDs from you. Your file " + filename + " was not sent.");
352 u->WriteNotice(user->nick + " (" + user->ident + "@" + user->dhost + ") attempted to send you a file named " + filename + ", which was blocked.");
353 u->WriteNotice("If you trust " + user->nick + " and were expecting this, you can type /DCCALLOW HELP for information on the DCCALLOW system.");
356 else if ((type == "CHAT") && (blockchat))
358 user->WriteNotice("The user " + u->nick + " is not accepting DCC CHAT requests from you.");
359 u->WriteNotice(user->nick + " (" + user->ident + "@" + user->dhost + ") attempted to initiate a DCC CHAT session, which was blocked.");
360 u->WriteNotice("If you trust " + user->nick + " and were expecting this, you can type /DCCALLOW HELP for information on the DCCALLOW system.");
366 return MOD_RES_PASSTHRU;
371 for (userlist::iterator iter = ul.begin(); iter != ul.end();)
373 User* u = (User*)(*iter);
379 dccallowlist::iterator iter2 = dl->begin();
380 while (iter2 != dl->end())
382 if (iter2->length != 0 && (iter2->set_on + iter2->length) <= ServerInstance->Time())
384 u->WriteNumeric(997, "%s :DCCALLOW entry for %s has expired", u->nick.c_str(), iter2->nickname.c_str());
385 iter2 = dl->erase(iter2);
397 iter = ul.erase(iter);
402 void RemoveNick(User* user)
404 /* Iterate through all DCCALLOW lists and remove user */
405 for (userlist::iterator iter = ul.begin(); iter != ul.end();)
407 User *u = (User*)(*iter);
413 for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
415 if (i->nickname == user->nick)
418 u->WriteNotice(i->nickname + " left the network or changed their nickname and has been removed from your DCCALLOW list");
419 u->WriteNumeric(995, "%s :Removed %s from your DCCALLOW list", u->nick.c_str(), i->nickname.c_str());
429 iter = ul.erase(iter);
434 void RemoveFromUserlist(User *user)
436 // remove user from userlist
437 for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
439 User* u = (User*)(*j);
448 void ReadConfig(ConfigStatus& status) CXX11_OVERRIDE
451 ConfigTagList tags = ServerInstance->Config->ConfTags("banfile");
452 for (ConfigIter i = tags.first; i != tags.second; ++i)
455 bf.filemask = i->second->getString("pattern");
456 bf.action = i->second->getString("action");
461 Version GetVersion() CXX11_OVERRIDE
463 return Version("Provides support for the /DCCALLOW command", VF_COMMON | VF_VENDOR);
467 MODULE_INIT(ModuleDCCAllow)