-/* +------------------------------------+
- * | Inspire Internet Relay Chat Daemon |
- * +------------------------------------+
- *
- * InspIRCd is copyright (C) 2002-2006 ChatSpike-Dev.
- * E-mail:
- * <brain@chatspike.net>
- * <Craig@chatspike.net>
- *
- * Written by Craig Edwards, Craig McLure, and others.
- * This program is free but copyrighted software; see
- * the file COPYING for details.
- *
- * ---------------------------------------------------
- */
-
-using namespace std;
-
-#include <stdio.h>
-#include <map>
-#include "users.h"
-#include "channels.h"
-#include "modules.h"
-#include "inspircd.h"
-
-/* $ModDesc: Provides channel mode +f (message flood protection) */
-
-
-
-class floodsettings : public classbase
-{
- public:
- bool ban;
- int secs;
- int lines;
- time_t reset;
- std::map<userrec*,int> counters;
-
- floodsettings() : ban(0), secs(0), lines(0) {};
- floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c)
- {
- reset = time(NULL) + secs;
- };
-
- void addmessage(userrec* who)
- {
- std::map<userrec*,int>::iterator iter = counters.find(who);
- if (iter != counters.end())
- {
- iter->second++;
- }
- else
- {
- counters[who] = 1;
- }
- if (time(NULL) > reset)
- {
- counters.clear();
- reset = time(NULL) + secs;
- }
- }
-
- bool shouldkick(userrec* who)
- {
- std::map<userrec*,int>::iterator iter = counters.find(who);
- if (iter != counters.end())
- {
- return (iter->second >= this->lines);
- }
- else return false;
- }
-
- void clear(userrec* who)
- {
- std::map<userrec*,int>::iterator iter = counters.find(who);
- if (iter != counters.end())
- {
- counters.erase(iter);
- }
- }
-};
-
-class MsgFlood : public ModeHandler
-{
- public:
- MsgFlood(InspIRCd* Instance) : ModeHandler(Instance, 'f', 1, 0, false, MODETYPE_CHANNEL, false) { }
-
- ModePair ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)
- {
- floodsettings* x;
- if (channel->GetExt("flood",x))
- return std::make_pair(true, (x->ban ? "*" : "")+ConvToStr(x->lines)+":"+ConvToStr(x->secs));
- else
- return std::make_pair(false, parameter);
- }
-
- bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)
- {
- /* When TS is equal, the alphabetically later one wins */
- return (their_param < our_param);
- }
-
- ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)
- {
- floodsettings *f;
-
- if (adding)
- {
- char ndata[MAXBUF];
- char* data = ndata;
- strlcpy(ndata,parameter.c_str(),MAXBUF);
- char* lines = data;
- char* secs = NULL;
- bool ban = false;
- if (*data == '*')
- {
- ban = true;
- lines++;
- }
- else
- {
- ban = false;
- }
- while (*data)
- {
- if (*data == ':')
- {
- *data = 0;
- data++;
- secs = data;
- break;
- }
- else data++;
- }
- if (secs)
- {
- /* Set up the flood parameters for this channel */
- int nlines = atoi(lines);
- int nsecs = atoi(secs);
- if ((nlines<1) || (nsecs<1))
- {
- source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);
- parameter = "";
- return MODEACTION_DENY;
- }
- else
- {
- if (!channel->GetExt("flood", f))
- {
- parameter = ConvToStr(nlines) + ":" +ConvToStr(nsecs);
- floodsettings *f = new floodsettings(ban,nsecs,nlines);
- channel->Extend("flood",f);
- channel->SetMode('f', true);
- channel->SetModeParam('f', parameter.c_str(), true);
- return MODEACTION_ALLOW;
- }
- else
- {
- if (((nlines != f->lines) || (nsecs != f->secs)) && ((nsecs > 0) && (nlines > 0)))
- {
- delete f;
- floodsettings *f = new floodsettings(ban,nsecs,nlines);
- parameter = ConvToStr(nlines) + ":" +ConvToStr(nsecs);
- channel->Shrink("flood");
- channel->Extend("flood",f);
- channel->SetModeParam('f', parameter.c_str(), true);
- return MODEACTION_ALLOW;
- }
- }
- }
- }
- else
- {
- source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);
- parameter = "";
- return MODEACTION_DENY;
- }
- }
- else
- {
- if (channel->GetExt("flood", f))
- {
- DELETE(f);
- channel->Shrink("flood");
- channel->SetMode('f', false);
- return MODEACTION_ALLOW;
- }
- }
-
- return MODEACTION_DENY;
- }
-};
-
-class ModuleMsgFlood : public Module
-{
-
- MsgFlood* mf;
-
- public:
-
- ModuleMsgFlood(InspIRCd* Me)
- : Module::Module(Me)
- {
-
- mf = new MsgFlood(ServerInstance);
- ServerInstance->AddMode(mf, 'f');
- }
-
- void ProcessMessages(userrec* user,chanrec* dest, const std::string &text)
- {
- if (IS_LOCAL(user))
- {
- floodsettings *f;
- if (dest->GetExt("flood", f))
- {
- f->addmessage(user);
- if (f->shouldkick(user))
- {
- /* Youre outttta here! */
- f->clear(user);
- if (f->ban)
- {
- const char* parameters[3];
- parameters[0] = dest->name;
- parameters[1] = "+b";
- parameters[2] = user->MakeWildHost();
- ServerInstance->SendMode(parameters,3,user);
- std::deque<std::string> n;
- /* Propogate the ban to other servers.
- * We dont know what protocol we may be using,
- * so this event is picked up by our protocol
- * module and formed into a ban command that
- * suits the protocol in use.
- */
- n.push_back(dest->name);
- n.push_back("+b");
- n.push_back(user->MakeWildHost());
- Event rmode((char *)&n, NULL, "send_mode");
- rmode.Send(ServerInstance);
- }
- dest->ServerKickUser(user, "Channel flood triggered (mode +f)", true);
- }
- }
- }
- }
-
- virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status)
- {
- if (target_type == TYPE_CHANNEL)
- {
- ProcessMessages(user,(chanrec*)dest,text);
- }
- }
-
- virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status)
- {
- if (target_type == TYPE_CHANNEL)
- {
- ProcessMessages(user,(chanrec*)dest,text);
- }
- }
-
- void OnChannelDelete(chanrec* chan)
- {
- floodsettings* f;
- if (chan->GetExt("flood", f))
- {
- DELETE(f);
- chan->Shrink("flood");
- }
- }
-
- void Implements(char* List)
- {
- List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1;
- }
-
- virtual ~ModuleMsgFlood()
- {
- ServerInstance->Modes->DelMode(mf);
- DELETE(mf);
- }
-
- virtual Version GetVersion()
- {
- return Version(1, 0, 0, 0, VF_COMMON | VF_VENDOR);
- }
-};
-
-
-class ModuleMsgFloodFactory : public ModuleFactory
-{
- public:
- ModuleMsgFloodFactory()
- {
- }
-
- ~ModuleMsgFloodFactory()
- {
- }
-
- virtual Module * CreateModule(InspIRCd* Me)
- {
- return new ModuleMsgFlood(Me);
- }
-
-};
-
-
-extern "C" void * init_module( void )
-{
- return new ModuleMsgFloodFactory;
-}
-
+/* +------------------------------------+\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: Provides channel mode +f (message flood protection) */\r\r/** Holds flood settings and state for mode +f\r */\rclass floodsettings : public classbase\r{\r public:\r bool ban;\r int secs;\r int lines;\r time_t reset;\r std::map<userrec*,int> counters;\r\r floodsettings() : ban(0), secs(0), lines(0) {};\r floodsettings(bool a, int b, int c) : ban(a), secs(b), lines(c)\r {\r reset = time(NULL) + secs;\r };\r\r void addmessage(userrec* who)\r {\r std::map<userrec*,int>::iterator iter = counters.find(who);\r if (iter != counters.end())\r {\r iter->second++;\r }\r else\r {\r counters[who] = 1;\r }\r if (time(NULL) > reset)\r {\r counters.clear();\r reset = time(NULL) + secs;\r }\r }\r\r bool shouldkick(userrec* who)\r {\r std::map<userrec*,int>::iterator iter = counters.find(who);\r if (iter != counters.end())\r {\r return (iter->second >= this->lines);\r }\r else return false;\r }\r\r void clear(userrec* who)\r {\r std::map<userrec*,int>::iterator iter = counters.find(who);\r if (iter != counters.end())\r {\r counters.erase(iter);\r }\r }\r};\r\r/** Handles channel mode +f\r */\rclass MsgFlood : public ModeHandler\r{\r public:\r MsgFlood(InspIRCd* Instance) : ModeHandler(Instance, 'f', 1, 0, false, MODETYPE_CHANNEL, false) { }\r\r ModePair ModeSet(userrec* source, userrec* dest, chanrec* channel, const std::string ¶meter)\r {\r floodsettings* x;\r if (channel->GetExt("flood",x))\r return std::make_pair(true, (x->ban ? "*" : "")+ConvToStr(x->lines)+":"+ConvToStr(x->secs));\r else\r return std::make_pair(false, parameter);\r }\r\r bool CheckTimeStamp(time_t theirs, time_t ours, const std::string &their_param, const std::string &our_param, chanrec* channel)\r {\r /* When TS is equal, the alphabetically later one wins */\r return (their_param < our_param);\r }\r\r ModeAction OnModeChange(userrec* source, userrec* dest, chanrec* channel, std::string ¶meter, bool adding)\r {\r floodsettings *f;\r\r if (adding)\r {\r char ndata[MAXBUF];\r char* data = ndata;\r strlcpy(ndata,parameter.c_str(),MAXBUF);\r char* lines = data;\r char* secs = NULL;\r bool ban = false;\r if (*data == '*')\r {\r ban = true;\r lines++;\r }\r else\r {\r ban = false;\r }\r while (*data)\r {\r if (*data == ':')\r {\r *data = 0;\r data++;\r secs = data;\r break;\r }\r else data++;\r }\r if (secs)\r {\r /* Set up the flood parameters for this channel */\r int nlines = atoi(lines);\r int nsecs = atoi(secs);\r if ((nlines<1) || (nsecs<1))\r {\r source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);\r parameter.clear();\r return MODEACTION_DENY;\r }\r else\r {\r if (!channel->GetExt("flood", f))\r {\r parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs);\r floodsettings *f = new floodsettings(ban,nsecs,nlines);\r channel->Extend("flood",f);\r channel->SetMode('f', true);\r channel->SetModeParam('f', parameter.c_str(), true);\r return MODEACTION_ALLOW;\r }\r else\r {\r std::string cur_param = channel->GetModeParameter('f');\r parameter = std::string(ban ? "*" : "") + ConvToStr(nlines) + ":" +ConvToStr(nsecs);\r if (cur_param == parameter)\r {\r // mode params match\r return MODEACTION_DENY;\r }\r else\r {\r if (((nlines != f->lines) || (nsecs != f->secs)) && ((nsecs > 0) && (nlines > 0)) || (ban != f->ban))\r {\r delete f;\r floodsettings *f = new floodsettings(ban,nsecs,nlines);\r channel->Shrink("flood");\r channel->Extend("flood",f);\r channel->SetModeParam('f', cur_param.c_str(), false);\r channel->SetModeParam('f', parameter.c_str(), true);\r return MODEACTION_ALLOW;\r }\r else\r {\r return MODEACTION_DENY;\r }\r }\r }\r }\r }\r else\r {\r source->WriteServ("608 %s %s :Invalid flood parameter",source->nick,channel->name);\r parameter.clear();\r return MODEACTION_DENY;\r }\r }\r else\r {\r if (channel->GetExt("flood", f))\r {\r DELETE(f);\r channel->Shrink("flood");\r channel->SetMode('f', false);\r return MODEACTION_ALLOW;\r }\r }\r \r return MODEACTION_DENY;\r }\r};\r\rclass ModuleMsgFlood : public Module\r{\r \r MsgFlood* mf;\r \r public:\r \r ModuleMsgFlood(InspIRCd* Me)\r : Module(Me)\r {\r \r mf = new MsgFlood(ServerInstance);\r if (!ServerInstance->AddMode(mf, 'f'))\r throw ModuleException("Could not add new modes!");\r }\r \r void ProcessMessages(userrec* user,chanrec* dest, const std::string &text)\r {\r if (!IS_LOCAL(user) || CHANOPS_EXEMPT(ServerInstance, 'f') && dest->GetStatus(user) == STATUS_OP)\r {\r return;\r }\r\r floodsettings *f;\r if (dest->GetExt("flood", f))\r {\r f->addmessage(user);\r if (f->shouldkick(user))\r {\r /* Youre outttta here! */\r f->clear(user);\r if (f->ban)\r {\r const char* parameters[3];\r parameters[0] = dest->name;\r parameters[1] = "+b";\r parameters[2] = user->MakeWildHost();\r ServerInstance->SendMode(parameters,3,user);\r std::deque<std::string> n;\r /* Propogate the ban to other servers.\r * We dont know what protocol we may be using,\r * so this event is picked up by our protocol\r * module and formed into a ban command that\r * suits the protocol in use.\r */\r n.push_back(dest->name);\r n.push_back("+b");\r n.push_back(user->MakeWildHost());\r Event rmode((char *)&n, NULL, "send_mode");\r rmode.Send(ServerInstance);\r }\r char kickmessage[MAXBUF];\r snprintf(kickmessage, MAXBUF, "Channel flood triggered (limit is %d lines in %d secs)", f->lines, f->secs);\r dest->ServerKickUser(user, kickmessage, true);\r }\r }\r }\r\r virtual void OnUserMessage(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)\r {\r if (target_type == TYPE_CHANNEL)\r {\r ProcessMessages(user,(chanrec*)dest,text);\r }\r }\r\r virtual void OnUserNotice(userrec* user, void* dest, int target_type, const std::string &text, char status, const CUList &exempt_list)\r {\r if (target_type == TYPE_CHANNEL)\r {\r ProcessMessages(user,(chanrec*)dest,text);\r }\r }\r\r void OnChannelDelete(chanrec* chan)\r {\r floodsettings* f;\r if (chan->GetExt("flood", f))\r {\r DELETE(f);\r chan->Shrink("flood");\r }\r }\r\r void Implements(char* List)\r {\r List[I_OnChannelDelete] = List[I_OnUserNotice] = List[I_OnUserMessage] = 1;\r }\r\r virtual ~ModuleMsgFlood()\r {\r ServerInstance->Modes->DelMode(mf);\r DELETE(mf);\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(ModuleMsgFlood)\r
\ No newline at end of file
projects / user / henk / code / inspircd.git / blobdiff