-/* +------------------------------------+\r * | Inspire Internet Relay Chat Daemon |\r * +------------------------------------+\r *\r * InspIRCd: (C) 2002-2007 InspIRCd Development Team\r * See: http://www.inspircd.org/wiki/index.php/Credits\r *\r * This program is free but copyrighted software; see\r * the file COPYING for details.\r *\r * ---------------------------------------------------\r */\r\r#include "inspircd.h"\r#include "users.h"\r#include "channels.h"\r#include "modules.h"\r\r/* $ModDesc: Povides support for the /DCCALLOW command */\r\rstatic ConfigReader *Conf;\r\rclass BannedFileList\r{\r public:\r std::string filemask;\r std::string action;\r};\r\rclass DCCAllow\r{\r public:\r std::string nickname;\r std::string hostmask;\r time_t set_on;\r long length;\r\r DCCAllow() { }\r\r 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) { }\r};\r\rtypedef std::vector<userrec *> userlist;\ruserlist ul;\rtypedef std::vector<DCCAllow> dccallowlist;\rdccallowlist* dl;\rtypedef std::vector<BannedFileList> bannedfilelist;\rbannedfilelist bfl;\r\rclass cmd_dccallow : public command_t\r{\r public:\r cmd_dccallow(InspIRCd* Me) : command_t(Me, "DCCALLOW", 0, 0)\r {\r this->source = "m_dccallow.so";\r syntax = "{[+|-]<nick> <time>|HELP|LIST}";\r }\r\r CmdResult Handle(const char **parameters, int pcnt, userrec *user)\r {\r /* syntax: DCCALLOW [+|-]<nick> (<time>) */\r if (!pcnt)\r {\r // display current DCCALLOW list\r DisplayDCCAllowList(user);\r return CMD_FAILURE;\r }\r else if (pcnt > 0)\r {\r char action = *parameters[0];\r \r // if they didn't specify an action, this is probably a command\r if (action != '+' && action != '-')\r {\r if (!strcasecmp(parameters[0], "LIST"))\r {\r // list current DCCALLOW list\r DisplayDCCAllowList(user);\r return CMD_FAILURE;\r } \r else if (!strcasecmp(parameters[0], "HELP"))\r {\r // display help\r DisplayHelp(user);\r return CMD_FAILURE;\r }\r }\r \r std::string nick = parameters[0] + 1;\r userrec *target = ServerInstance->FindNick(nick);\r \r if (target)\r {\r \r if (action == '-')\r {\r user->GetExt("dccallow_list", dl);\r // check if it contains any entries\r if (dl)\r {\r if (dl->size())\r {\r for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)\r {\r // search through list\r if (i->nickname == target->nick)\r {\r dl->erase(i);\r user->WriteServ("995 %s %s :Removed %s from your DCCALLOW list", user->nick, user->nick, target->nick);\r break;\r }\r }\r }\r }\r else\r {\r DELETE(dl);\r user->Shrink("dccallow_list");\r \r // remove from userlist\r for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)\r {\r userrec* u = (userrec*)(*j);\r if (u == user)\r {\r ul.erase(j);\r break;\r }\r }\r }\r }\r else if (action == '+')\r {\r // fetch current DCCALLOW list\r user->GetExt("dccallow_list", dl);\r // they don't have one, create it\r if (!dl)\r {\r dl = new dccallowlist;\r user->Extend("dccallow_list", dl);\r // add this user to the userlist\r ul.push_back(user);\r }\r for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)\r {\r if (k->nickname == target->nick)\r {\r user->WriteServ("996 %s %s :%s is already on your DCCALLOW list", user->nick, user->nick, target->nick);\r return CMD_FAILURE;\r }\r else if (ServerInstance->MatchText(user->GetFullHost(), k->hostmask))\r {\r user->WriteServ("996 %s %s :You cannot add yourself to your own DCCALLOW list!", user->nick, user->nick);\r return CMD_FAILURE;\r }\r }\r \r std::string mask = std::string(target->nick)+"!"+std::string(target->ident)+"@"+std::string(target->dhost);\r std::string default_length = Conf->ReadValue("dccallow", "length", 0);\r \r long length;\r if (pcnt < 2)\r {\r length = ServerInstance->Duration(default_length);\r } \r else if (!atoi(parameters[1]))\r {\r length = 0;\r }\r else\r {\r length = ServerInstance->Duration(parameters[1]);\r }\r \r if (!ServerInstance->IsValidMask(mask.c_str()))\r {\r return CMD_FAILURE;\r }\r \r dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));\r \r if (length > 0)\r {\r user->WriteServ("993 %s %s :Added %s to DCCALLOW list for %d seconds", user->nick, user->nick, target->nick, length);\r }\r else\r {\r user->WriteServ("994 %s %s :Added %s to DCCALLOW list for this session", user->nick, user->nick, target->nick);\r }\r\r /* route it. */\r return CMD_SUCCESS;\r }\r }\r else\r {\r // nick doesn't exist\r user->WriteServ("401 %s %s :No such nick/channel", user->nick, nick.c_str());\r return CMD_FAILURE;\r }\r }\r return CMD_FAILURE;\r }\r\r void DisplayHelp(userrec* user)\r {\r user->WriteServ("998 %s :DCCALLOW [<+|->nick [time]] [list] [help]", user->nick);\r user->WriteServ("998 %s :You may allow DCCs from specific users by specifying a", user->nick);\r user->WriteServ("998 %s :DCC allow for the user you want to receive DCCs from.", user->nick);\r user->WriteServ("998 %s :For example, to allow the user Brain to send you inspircd.exe", user->nick);\r user->WriteServ("998 %s :you would type:", user->nick);\r user->WriteServ("998 %s :/DCCALLOW +Brain", user->nick);\r user->WriteServ("998 %s :Brain would then be able to send you files. They would have to", user->nick);\r user->WriteServ("998 %s :resend the file again if the server gave them an error message", user->nick);\r user->WriteServ("998 %s :before you added them to your DCCALLOW list.", user->nick);\r user->WriteServ("998 %s :DCCALLOW entries will be temporary by default, if you want to add", user->nick);\r user->WriteServ("998 %s :them to your DCCALLOW list until you leave IRC, type:", user->nick);\r user->WriteServ("998 %s :/DCCALLOW +Brain 0", user->nick);\r user->WriteServ("998 %s :To remove the user from your DCCALLOW list, type:", user->nick);\r user->WriteServ("998 %s :/DCCALLOW -Brain", user->nick);\r user->WriteServ("998 %s :To see the users in your DCCALLOW list, type:", user->nick);\r user->WriteServ("998 %s :/DCCALLOW LIST", user->nick);\r user->WriteServ("998 %s :NOTE: If the user leaves IRC or changes their nickname", user->nick);\r user->WriteServ("998 %s : they will be removed from your DCCALLOW list.", user->nick);\r user->WriteServ("998 %s : your DCCALLOW list will be deleted when you leave IRC.", user->nick);\r user->WriteServ("999 %s :End of DCCALLOW HELP", user->nick);\r }\r \r void DisplayDCCAllowList(userrec* user)\r {\r // display current DCCALLOW list\r user->WriteServ("990 %s :Users on your DCCALLOW list:", user->nick);\r user->GetExt("dccallow_list", dl);\r \r if (dl)\r {\r for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)\r {\r user->WriteServ("991 %s %s :%s (%s)", user->nick, user->nick, c->nickname.c_str(), c->hostmask.c_str());\r }\r }\r \r user->WriteServ("992 %s :End of DCCALLOW list", user->nick);\r } \r\r};\r \rclass ModuleDCCAllow : public Module\r{\r cmd_dccallow* mycommand;\r public:\r\r ModuleDCCAllow(InspIRCd* Me)\r : Module(Me)\r {\r Conf = new ConfigReader(ServerInstance);\r mycommand = new cmd_dccallow(ServerInstance);\r ServerInstance->AddCommand(mycommand);\r ReadFileConf();\r }\r\r void Implements(char* List)\r {\r List[I_OnUserPreMessage] = List[I_OnUserPreNotice] = List[I_OnUserQuit] = List[I_OnUserPreNick] = List[I_OnRehash] = 1;\r }\r\r virtual void OnRehash(userrec* user, const std::string ¶meter)\r {\r delete Conf;\r Conf = new ConfigReader(ServerInstance);\r }\r\r virtual void OnUserQuit(userrec* user, const std::string &reason, const std::string &oper_message)\r {\r dccallowlist* dl;\r \r // remove their DCCALLOW list if they have one\r user->GetExt("dccallow_list", dl);\r if (dl)\r {\r DELETE(dl);\r user->Shrink("dccallow_list");\r RemoveFromUserlist(user);\r }\r \r // remove them from any DCCALLOW lists\r // they are currently on\r RemoveNick(user);\r }\r\r\r virtual int OnUserPreNick(userrec* user, const std::string &newnick)\r {\r RemoveNick(user);\r return 0;\r }\r\r virtual int OnUserPreMessage(userrec* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)\r {\r return OnUserPreNotice(user, dest, target_type, text, status, exempt_list);\r }\r\r virtual int OnUserPreNotice(userrec* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)\r {\r if (!IS_LOCAL(user))\r return 0;\r\r if (target_type == TYPE_USER)\r {\r userrec* u = (userrec*)dest;\r\r /* Always allow a user to dcc themselves (although... why?) */\r if (user == u)\r return 0;\r \r if ((text.length()) && (text[0] == '\1'))\r {\r Expire();\r\r // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676\r // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION\r \r if (strncmp(text.c_str(), "\1DCC ", 5) == 0)\r {\r u->GetExt("dccallow_list", dl);\r \r if (dl && dl->size())\r {\r for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)\r if (ServerInstance->MatchText(user->GetFullHost(), iter->hostmask))\r return 0;\r }\r \r // tokenize\r std::stringstream ss(text);\r std::string buf;\r std::vector<std::string> tokens;\r \r while (ss >> buf)\r tokens.push_back(buf);\r \r irc::string type = tokens[1].c_str();\r \r bool blockchat = Conf->ReadFlag("dccallow", "blockchat", 0);\r \r if (type == "SEND")\r {\r std::string defaultaction = Conf->ReadValue("dccallow", "action", 0);\r std::string filename = tokens[2];\r \r if (defaultaction == "allow") \r return 0;\r \r for (unsigned int i = 0; i < bfl.size(); i++)\r {\r if (ServerInstance->MatchText(filename, bfl[i].filemask))\r {\r if (bfl[i].action == "allow")\r return 0;\r }\r else\r {\r if (defaultaction == "allow")\r return 0;\r }\r 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());\r 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());\r 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);\r return 1;\r }\r }\r else if ((type == "CHAT") && (blockchat))\r {\r user->WriteServ("NOTICE %s :The user %s is not accepting DCC CHAT requests from you.", user->nick, u->nick);\r 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);\r 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);\r return 1;\r }\r }\r }\r }\r return 0;\r }\r \r void Expire()\r {\r for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)\r {\r userrec* u = (userrec*)(*iter);\r u->GetExt("dccallow_list", dl);\r \r if (dl)\r {\r if (dl->size())\r {\r dccallowlist::iterator iter = dl->begin();\r while (iter != dl->end())\r {\r if ((iter->set_on + iter->length) <= ServerInstance->Time())\r {\r u->WriteServ("997 %s %s :DCCALLOW entry for %s has expired", u->nick, u->nick, iter->nickname.c_str());\r iter = dl->erase(iter);\r }\r else\r {\r ++iter;\r }\r }\r }\r }\r else\r {\r RemoveFromUserlist(u);\r }\r }\r }\r \r void RemoveNick(userrec* user)\r {\r /* Iterate through all DCCALLOW lists and remove user */\r for (userlist::iterator iter = ul.begin(); iter != ul.end(); ++iter)\r {\r userrec *u = (userrec*)(*iter);\r u->GetExt("dccallow_list", dl);\r \r if (dl)\r {\r if (dl->size())\r {\r for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)\r {\r if (i->nickname == user->nick)\r {\r \r 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());\r u->WriteServ("995 %s %s :Removed %s from your DCCALLOW list", u->nick, u->nick, i->nickname.c_str());\r dl->erase(i);\r break;\r }\r }\r }\r }\r else\r {\r RemoveFromUserlist(u);\r }\r }\r }\r\r void RemoveFromUserlist(userrec *user)\r {\r // remove user from userlist\r for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)\r {\r userrec* u = (userrec*)(*j);\r if (u == user)\r {\r ul.erase(j);\r break;\r }\r }\r }\r\r void ReadFileConf()\r {\r bfl.clear();\r for (int i = 0; i < Conf->Enumerate("banfile"); i++)\r {\r BannedFileList bf;\r std::string fileglob = Conf->ReadValue("banfile", "pattern", i);\r std::string action = Conf->ReadValue("banfile", "action", i);\r bf.filemask = fileglob;\r bf.action = action;\r bfl.push_back(bf);\r }\r \r }\r\r virtual ~ModuleDCCAllow()\r {\r }\r\r virtual Version GetVersion()\r {\r return Version(1,1,0,0,VF_COMMON|VF_VENDOR,API_VERSION);\r }\r};\r\rMODULE_INIT(ModuleDCCAllow)\r
\ No newline at end of file
+/*
+ * InspIRCd -- Internet Relay Chat Daemon
+ *
+ * Copyright (C) 2009 Daniel De Graaf <danieldg@inspircd.org>
+ * Copyright (C) 2008 John Brooks <john.brooks@dereferenced.net>
+ * Copyright (C) 2008 Pippijn van Steenhoven <pip88nl@gmail.com>
+ * Copyright (C) 2006-2008 Craig Edwards <craigedwards@brainbox.cc>
+ * Copyright (C) 2007-2008 Robin Burchell <robin+git@viroteck.net>
+ * Copyright (C) 2007 Dennis Friis <peavey@inspircd.org>
+ * Copyright (C) 2006 Jamie ??? <???@???>
+ *
+ * This file is part of InspIRCd. InspIRCd is free software: you can
+ * redistribute it and/or modify it under the terms of the GNU General Public
+ * License as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "inspircd.h"
+
+/* $ModDesc: Provides support for the /DCCALLOW command */
+
+class BannedFileList
+{
+ public:
+ std::string filemask;
+ std::string action;
+};
+
+class DCCAllow
+{
+ public:
+ std::string nickname;
+ std::string hostmask;
+ time_t set_on;
+ long length;
+
+ DCCAllow() { }
+
+ 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) { }
+};
+
+typedef std::vector<User *> userlist;
+userlist ul;
+typedef std::vector<DCCAllow> dccallowlist;
+dccallowlist* dl;
+typedef std::vector<BannedFileList> bannedfilelist;
+bannedfilelist bfl;
+SimpleExtItem<dccallowlist>* ext;
+
+class CommandDccallow : public Command
+{
+ public:
+ CommandDccallow(Module* parent) : Command(parent, "DCCALLOW", 0)
+ {
+ syntax = "[(+|-)<nick> [<time>]]|[LIST|HELP]";
+ /* XXX we need to fix this so it can work with translation stuff (i.e. move +- into a seperate param */
+ }
+
+ CmdResult Handle(const std::vector<std::string> ¶meters, User *user)
+ {
+ /* syntax: DCCALLOW [+|-]<nick> (<time>) */
+ if (!parameters.size())
+ {
+ // display current DCCALLOW list
+ DisplayDCCAllowList(user);
+ return CMD_FAILURE;
+ }
+ else if (parameters.size() > 0)
+ {
+ char action = *parameters[0].c_str();
+
+ // if they didn't specify an action, this is probably a command
+ if (action != '+' && action != '-')
+ {
+ if (!strcasecmp(parameters[0].c_str(), "LIST"))
+ {
+ // list current DCCALLOW list
+ DisplayDCCAllowList(user);
+ return CMD_FAILURE;
+ }
+ else if (!strcasecmp(parameters[0].c_str(), "HELP"))
+ {
+ // display help
+ DisplayHelp(user);
+ return CMD_FAILURE;
+ }
+ else
+ {
+ user->WriteNumeric(998, "%s :DCCALLOW command not understood. For help on DCCALLOW, type /DCCALLOW HELP", user->nick.c_str());
+ return CMD_FAILURE;
+ }
+ }
+
+ std::string nick = parameters[0].substr(1);
+ User *target = ServerInstance->FindNickOnly(nick);
+
+ if ((target) && (!IS_SERVER(target)) && (!target->quitting) && (target->registered == REG_ALL))
+ {
+
+ if (action == '-')
+ {
+ // check if it contains any entries
+ dl = ext->get(user);
+ if (dl)
+ {
+ for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
+ {
+ // search through list
+ if (i->nickname == target->nick)
+ {
+ dl->erase(i);
+ user->WriteNumeric(995, "%s %s :Removed %s from your DCCALLOW list", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
+ break;
+ }
+ }
+ }
+ }
+ else if (action == '+')
+ {
+ if (target == user)
+ {
+ user->WriteNumeric(996, "%s %s :You cannot add yourself to your own DCCALLOW list!", user->nick.c_str(), user->nick.c_str());
+ return CMD_FAILURE;
+ }
+
+ dl = ext->get(user);
+ if (!dl)
+ {
+ dl = new dccallowlist;
+ ext->set(user, dl);
+ // add this user to the userlist
+ ul.push_back(user);
+ }
+
+ for (dccallowlist::const_iterator k = dl->begin(); k != dl->end(); ++k)
+ {
+ if (k->nickname == target->nick)
+ {
+ user->WriteNumeric(996, "%s %s :%s is already on your DCCALLOW list", user->nick.c_str(), user->nick.c_str(), target->nick.c_str());
+ return CMD_FAILURE;
+ }
+ }
+
+ std::string mask = target->nick+"!"+target->ident+"@"+target->dhost;
+ std::string default_length = ServerInstance->Config->ConfValue("dccallow")->getString("length");
+
+ long length;
+ if (parameters.size() < 2)
+ {
+ length = ServerInstance->Duration(default_length);
+ }
+ else if (!atoi(parameters[1].c_str()))
+ {
+ length = 0;
+ }
+ else
+ {
+ length = ServerInstance->Duration(parameters[1]);
+ }
+
+ if (!ServerInstance->IsValidMask(mask))
+ {
+ return CMD_FAILURE;
+ }
+
+ dl->push_back(DCCAllow(target->nick, mask, ServerInstance->Time(), length));
+
+ if (length > 0)
+ {
+ 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);
+ }
+ else
+ {
+ 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());
+ }
+
+ /* route it. */
+ return CMD_SUCCESS;
+ }
+ }
+ else
+ {
+ // nick doesn't exist
+ user->WriteNumeric(401, "%s %s :No such nick/channel", user->nick.c_str(), nick.c_str());
+ return CMD_FAILURE;
+ }
+ }
+ return CMD_FAILURE;
+ }
+
+ RouteDescriptor GetRouting(User* user, const std::vector<std::string>& parameters)
+ {
+ return ROUTE_BROADCAST;
+ }
+
+ void DisplayHelp(User* user)
+ {
+ user->WriteNumeric(998, "%s :DCCALLOW [(+|-)<nick> [<time>]]|[LIST|HELP]", user->nick.c_str());
+ user->WriteNumeric(998, "%s :You may allow DCCs from specific users by specifying a", user->nick.c_str());
+ user->WriteNumeric(998, "%s :DCC allow for the user you want to receive DCCs from.", user->nick.c_str());
+ user->WriteNumeric(998, "%s :For example, to allow the user Brain to send you inspircd.exe", user->nick.c_str());
+ user->WriteNumeric(998, "%s :you would type:", user->nick.c_str());
+ user->WriteNumeric(998, "%s :/DCCALLOW +Brain", user->nick.c_str());
+ user->WriteNumeric(998, "%s :Brain would then be able to send you files. They would have to", user->nick.c_str());
+ user->WriteNumeric(998, "%s :resend the file again if the server gave them an error message", user->nick.c_str());
+ user->WriteNumeric(998, "%s :before you added them to your DCCALLOW list.", user->nick.c_str());
+ user->WriteNumeric(998, "%s :DCCALLOW entries will be temporary by default, if you want to add", user->nick.c_str());
+ user->WriteNumeric(998, "%s :them to your DCCALLOW list until you leave IRC, type:", user->nick.c_str());
+ user->WriteNumeric(998, "%s :/DCCALLOW +Brain 0", user->nick.c_str());
+ user->WriteNumeric(998, "%s :To remove the user from your DCCALLOW list, type:", user->nick.c_str());
+ user->WriteNumeric(998, "%s :/DCCALLOW -Brain", user->nick.c_str());
+ user->WriteNumeric(998, "%s :To see the users in your DCCALLOW list, type:", user->nick.c_str());
+ user->WriteNumeric(998, "%s :/DCCALLOW LIST", user->nick.c_str());
+ user->WriteNumeric(998, "%s :NOTE: If the user leaves IRC or changes their nickname", user->nick.c_str());
+ user->WriteNumeric(998, "%s : they will be removed from your DCCALLOW list.", user->nick.c_str());
+ user->WriteNumeric(998, "%s : your DCCALLOW list will be deleted when you leave IRC.", user->nick.c_str());
+ user->WriteNumeric(999, "%s :End of DCCALLOW HELP", user->nick.c_str());
+
+ LocalUser* localuser = IS_LOCAL(user);
+ if (localuser)
+ localuser->CommandFloodPenalty += 4000;
+ }
+
+ void DisplayDCCAllowList(User* user)
+ {
+ // display current DCCALLOW list
+ user->WriteNumeric(990, "%s :Users on your DCCALLOW list:", user->nick.c_str());
+
+ dl = ext->get(user);
+ if (dl)
+ {
+ for (dccallowlist::const_iterator c = dl->begin(); c != dl->end(); ++c)
+ {
+ user->WriteNumeric(991, "%s %s :%s (%s)", user->nick.c_str(), user->nick.c_str(), c->nickname.c_str(), c->hostmask.c_str());
+ }
+ }
+
+ user->WriteNumeric(992, "%s :End of DCCALLOW list", user->nick.c_str());
+ }
+
+};
+
+class ModuleDCCAllow : public Module
+{
+ CommandDccallow cmd;
+ public:
+
+ ModuleDCCAllow()
+ : cmd(this)
+ {
+ ext = NULL;
+ }
+
+ void init()
+ {
+ ext = new SimpleExtItem<dccallowlist>("dccallow", this);
+ ServerInstance->Modules->AddService(*ext);
+ ServerInstance->Modules->AddService(cmd);
+ ReadFileConf();
+ Implementation eventlist[] = { I_OnUserPreMessage, I_OnUserPreNotice, I_OnUserQuit, I_OnUserPostNick, I_OnRehash };
+ ServerInstance->Modules->Attach(eventlist, this, sizeof(eventlist)/sizeof(Implementation));
+ }
+
+ virtual void OnRehash(User* user)
+ {
+ ReadFileConf();
+ }
+
+ virtual void OnUserQuit(User* user, const std::string &reason, const std::string &oper_message)
+ {
+ dccallowlist* udl = ext->get(user);
+
+ // remove their DCCALLOW list if they have one
+ if (udl)
+ {
+ userlist::iterator it = std::find(ul.begin(), ul.end(), user);
+ if (it != ul.end())
+ ul.erase(it);
+ }
+
+ // remove them from any DCCALLOW lists
+ // they are currently on
+ RemoveNick(user);
+ }
+
+ virtual void OnUserPostNick(User* user, const std::string &oldnick)
+ {
+ RemoveNick(user);
+ }
+
+ virtual ModResult OnUserPreMessage(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
+ {
+ return OnUserPreNotice(user, dest, target_type, text, status, exempt_list);
+ }
+
+ virtual ModResult OnUserPreNotice(User* user, void* dest, int target_type, std::string &text, char status, CUList &exempt_list)
+ {
+ if (!IS_LOCAL(user))
+ return MOD_RES_PASSTHRU;
+
+ if (target_type == TYPE_USER)
+ {
+ User* u = (User*)dest;
+
+ /* Always allow a user to dcc themselves (although... why?) */
+ if (user == u)
+ return MOD_RES_PASSTHRU;
+
+ if ((text.length()) && (text[0] == '\1'))
+ {
+ Expire();
+
+ // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :DCC SEND m_dnsbl.cpp 3232235786 52650 9676
+ // :jamie!jamie@test-D4457903BA652E0F.silverdream.org PRIVMSG eimaj :VERSION
+
+ if (strncmp(text.c_str(), "\1DCC ", 5) == 0)
+ {
+ dl = ext->get(u);
+ if (dl && dl->size())
+ {
+ for (dccallowlist::const_iterator iter = dl->begin(); iter != dl->end(); ++iter)
+ if (InspIRCd::Match(user->GetFullHost(), iter->hostmask))
+ return MOD_RES_PASSTHRU;
+ }
+
+ // tokenize
+ std::stringstream ss(text);
+ std::string buf;
+ std::vector<std::string> tokens;
+
+ while (ss >> buf)
+ tokens.push_back(buf);
+
+ if (tokens.size() < 2)
+ return MOD_RES_PASSTHRU;
+
+ irc::string type = tokens[1].c_str();
+
+ ConfigTag* conftag = ServerInstance->Config->ConfValue("dccallow");
+ bool blockchat = conftag->getBool("blockchat");
+
+ if (type == "SEND")
+ {
+ if (tokens.size() < 3)
+ return MOD_RES_PASSTHRU;
+
+ std::string defaultaction = conftag->getString("action");
+ std::string filename = tokens[2];
+
+ bool found = false;
+ for (unsigned int i = 0; i < bfl.size(); i++)
+ {
+ if (InspIRCd::Match(filename, bfl[i].filemask, ascii_case_insensitive_map))
+ {
+ /* We have a matching badfile entry, override whatever the default action is */
+ if (bfl[i].action == "allow")
+ return MOD_RES_PASSTHRU;
+ else
+ {
+ found = true;
+ break;
+ }
+ }
+ }
+
+ /* only follow the default action if no badfile matches were found above */
+ if ((!found) && (defaultaction == "allow"))
+ return MOD_RES_PASSTHRU;
+
+ 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());
+ 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());
+ 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());
+ return MOD_RES_DENY;
+ }
+ else if ((type == "CHAT") && (blockchat))
+ {
+ user->WriteServ("NOTICE %s :The user %s is not accepting DCC CHAT requests from you.", user->nick.c_str(), u->nick.c_str());
+ 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());
+ 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());
+ return MOD_RES_DENY;
+ }
+ }
+ }
+ }
+ return MOD_RES_PASSTHRU;
+ }
+
+ void Expire()
+ {
+ for (userlist::iterator iter = ul.begin(); iter != ul.end();)
+ {
+ User* u = (User*)(*iter);
+ dl = ext->get(u);
+ if (dl)
+ {
+ if (dl->size())
+ {
+ dccallowlist::iterator iter2 = dl->begin();
+ while (iter2 != dl->end())
+ {
+ if (iter2->length != 0 && (iter2->set_on + iter2->length) <= ServerInstance->Time())
+ {
+ u->WriteNumeric(997, "%s %s :DCCALLOW entry for %s has expired", u->nick.c_str(), u->nick.c_str(), iter2->nickname.c_str());
+ iter2 = dl->erase(iter2);
+ }
+ else
+ {
+ ++iter2;
+ }
+ }
+ }
+ ++iter;
+ }
+ else
+ {
+ iter = ul.erase(iter);
+ }
+ }
+ }
+
+ void RemoveNick(User* user)
+ {
+ /* Iterate through all DCCALLOW lists and remove user */
+ for (userlist::iterator iter = ul.begin(); iter != ul.end();)
+ {
+ User *u = (User*)(*iter);
+ dl = ext->get(u);
+ if (dl)
+ {
+ if (dl->size())
+ {
+ for (dccallowlist::iterator i = dl->begin(); i != dl->end(); ++i)
+ {
+ if (i->nickname == user->nick)
+ {
+
+ 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());
+ u->WriteNumeric(995, "%s %s :Removed %s from your DCCALLOW list", u->nick.c_str(), u->nick.c_str(), i->nickname.c_str());
+ dl->erase(i);
+ break;
+ }
+ }
+ }
+ ++iter;
+ }
+ else
+ {
+ iter = ul.erase(iter);
+ }
+ }
+ }
+
+ void RemoveFromUserlist(User *user)
+ {
+ // remove user from userlist
+ for (userlist::iterator j = ul.begin(); j != ul.end(); ++j)
+ {
+ User* u = (User*)(*j);
+ if (u == user)
+ {
+ ul.erase(j);
+ break;
+ }
+ }
+ }
+
+ void ReadFileConf()
+ {
+ bfl.clear();
+ ConfigTagList tags = ServerInstance->Config->ConfTags("banfile");
+ for (ConfigIter i = tags.first; i != tags.second; ++i)
+ {
+ BannedFileList bf;
+ bf.filemask = i->second->getString("pattern");
+ bf.action = i->second->getString("action");
+ bfl.push_back(bf);
+ }
+ }
+
+ virtual ~ModuleDCCAllow()
+ {
+ delete ext;
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version("Provides support for the /DCCALLOW command", VF_COMMON | VF_VENDOR);
+ }
+};
+
+MODULE_INIT(ModuleDCCAllow)
projects / user / henk / code / inspircd.git / blobdiff