-/* +------------------------------------+\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#include "wildcard.h"\r\r/** Holds a users m_safelist state\r */\rclass ListData : public classbase\r{\r public:\r long list_start;\r long list_position;\r bool list_ended;\r const std::string glob;\r int minusers;\r int maxusers;\r\r ListData() : list_start(0), list_position(0), list_ended(false) {};\r ListData(long pos, time_t t, const std::string &pattern, int mi, int ma) : list_start(t), list_position(pos), list_ended(false), glob(pattern), minusers(mi), maxusers(ma) {};\r};\r\r/* $ModDesc: A module overriding /list, and making it safe - stop those sendq problems. */\r\rclass ModuleSafeList : public Module\r{\r time_t ThrottleSecs;\r size_t ServerNameSize;\r int global_listing;\r int LimitList;\r public:\r ModuleSafeList(InspIRCd* Me) : Module(Me)\r {\r OnRehash(NULL, "");\r }\r \r virtual ~ModuleSafeList()\r {\r }\r\r virtual void OnRehash(userrec* user, const std::string ¶meter)\r {\r ConfigReader MyConf(ServerInstance);\r ThrottleSecs = MyConf.ReadInteger("safelist", "throttle", "60", 0, true);\r LimitList = MyConf.ReadInteger("safelist", "maxlisters", "50", 0, true);\r ServerNameSize = strlen(ServerInstance->Config->ServerName) + 4;\r global_listing = 0;\r }\r \r virtual Version GetVersion()\r {\r return Version(1,1,0,0,VF_VENDOR,API_VERSION);\r }\r \r void Implements(char* List)\r {\r List[I_OnBufferFlushed] = List[I_OnPreCommand] = List[I_OnCleanup] = List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnRehash] = 1;\r }\r\r /*\r * OnPreCommand()\r * Intercept the LIST command.\r */ \r virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)\r {\r /* If the command doesnt appear to be valid, we dont want to mess with it. */\r if (!validated)\r return 0;\r \r if (command == "LIST")\r {\r return this->HandleList(parameters, pcnt, user);\r }\r return 0;\r }\r \r /*\r * HandleList()\r * Handle (override) the LIST command.\r */\r int HandleList(const char** parameters, int pcnt, userrec* user)\r {\r int minusers = 0, maxusers = 0;\r\r if (global_listing >= LimitList)\r {\r user->WriteServ("NOTICE %s :*** Server load is currently too heavy. Please try again later.", user->nick);\r user->WriteServ("321 %s Channel :Users Name",user->nick);\r user->WriteServ("323 %s :End of channel list.",user->nick);\r return 1;\r }\r\r /* First, let's check if the user is currently /list'ing */\r ListData *ld;\r user->GetExt("safelist_cache", ld);\r \r if (ld)\r {\r /* user is already /list'ing, we don't want to do shit. */\r return 1;\r }\r\r /* Work around mIRC suckyness. YOU SUCK, KHALED! */\r if (pcnt == 1)\r {\r if (*parameters[0] == '<')\r {\r maxusers = atoi(parameters[0]+1);\r ServerInstance->Log(DEBUG,"Max users: %d", maxusers);\r pcnt = 0;\r }\r else if (*parameters[0] == '>')\r {\r minusers = atoi(parameters[0]+1);\r ServerInstance->Log(DEBUG,"Min users: %d", minusers);\r pcnt = 0;\r }\r }\r\r time_t* last_list_time;\r user->GetExt("safelist_last", last_list_time);\r if (last_list_time)\r {\r if (ServerInstance->Time() < (*last_list_time)+ThrottleSecs)\r {\r user->WriteServ("NOTICE %s :*** Woah there, slow down a little, you can't /LIST so often!",user->nick);\r user->WriteServ("321 %s Channel :Users Name",user->nick);\r user->WriteServ("323 %s :End of channel list.",user->nick);\r return 1;\r }\r\r DELETE(last_list_time);\r user->Shrink("safelist_last");\r }\r\r \r /*\r * start at channel 0! ;)\r */\r ld = new ListData(0,ServerInstance->Time(), pcnt ? parameters[0] : "*", minusers, maxusers);\r user->Extend("safelist_cache", ld);\r\r time_t* llt = new time_t;\r *llt = ServerInstance->Time();\r user->Extend("safelist_last", llt);\r\r user->WriteServ("321 %s Channel :Users Name",user->nick);\r\r global_listing++;\r\r return 1;\r }\r\r virtual void OnBufferFlushed(userrec* user)\r {\r char buffer[MAXBUF];\r ListData* ld;\r if (user->GetExt("safelist_cache", ld))\r {\r chanrec* chan = NULL;\r long amount_sent = 0;\r do\r {\r chan = ServerInstance->GetChannelIndex(ld->list_position);\r bool has_user = (chan && chan->HasUser(user));\r long users = chan ? chan->GetUserCounter() : 0;\r\r bool too_few = (ld->minusers && (users <= ld->minusers));\r bool too_many = (ld->maxusers && (users >= ld->maxusers));\r\r if (chan && (too_many || too_few))\r {\r ld->list_position++;\r continue;\r }\r\r if ((chan) && (chan->modes[CM_PRIVATE]))\r {\r bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str())));\r if ((users) && (display))\r {\r int counter = snprintf(buffer, MAXBUF, "322 %s *", user->nick);\r amount_sent += counter + ServerNameSize;\r user->WriteServ(std::string(buffer));\r }\r }\r else if ((chan) && (((!(chan->modes[CM_PRIVATE])) && (!(chan->modes[CM_SECRET]))) || (has_user)))\r {\r bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str())));\r if ((users) && (display))\r {\r int counter = snprintf(buffer, MAXBUF, "322 %s %s %ld :[+%s] %s",user->nick, chan->name, users, chan->ChanModes(has_user), chan->topic);\r amount_sent += counter + ServerNameSize;\r user->WriteServ(std::string(buffer));\r }\r }\r else\r {\r if (!chan)\r {\r if (!ld->list_ended)\r {\r ld->list_ended = true;\r user->WriteServ("323 %s :End of channel list.",user->nick);\r }\r }\r }\r ld->list_position++;\r }\r while ((chan != NULL) && (amount_sent < (user->sendqmax / 4)));\r if (ld->list_ended)\r {\r user->Shrink("safelist_cache");\r DELETE(ld);\r global_listing--;\r }\r }\r }\r\r virtual void OnCleanup(int target_type, void* item)\r {\r if(target_type == TYPE_USER)\r {\r userrec* u = (userrec*)item;\r ListData* ld;\r u->GetExt("safelist_cache", ld);\r if (ld)\r {\r u->Shrink("safelist_cache");\r DELETE(ld);\r global_listing--;\r }\r time_t* last_list_time;\r u->GetExt("safelist_last", last_list_time);\r if (last_list_time)\r {\r DELETE(last_list_time);\r u->Shrink("safelist_last");\r }\r }\r }\r\r virtual void On005Numeric(std::string &output)\r {\r output.append(" SAFELIST");\r }\r\r virtual void OnUserQuit(userrec* user, const std::string &message, const std::string &oper_message)\r {\r this->OnCleanup(TYPE_USER,user);\r }\r\r};\r\rMODULE_INIT(ModuleSafeList)\r
\ No newline at end of file
+/* +------------------------------------+
+ * | Inspire Internet Relay Chat Daemon |
+ * +------------------------------------+
+ *
+ * InspIRCd: (C) 2002-2007 InspIRCd Development Team
+ * See: http://www.inspircd.org/wiki/index.php/Credits
+ *
+ * This program is free but copyrighted software; see
+ * the file COPYING for details.
+ *
+ * ---------------------------------------------------
+ */
+
+#include "inspircd.h"
+#include "users.h"
+#include "channels.h"
+#include "modules.h"
+#include "wildcard.h"
+
+/** Holds a users m_safelist state
+ */
+class ListData : public classbase
+{
+ public:
+ long list_start;
+ long list_position;
+ bool list_ended;
+ const std::string glob;
+ int minusers;
+ int maxusers;
+
+ ListData() : list_start(0), list_position(0), list_ended(false) {};
+ ListData(long pos, time_t t, const std::string &pattern, int mi, int ma) : list_start(t), list_position(pos), list_ended(false), glob(pattern), minusers(mi), maxusers(ma) {};
+};
+
+/* $ModDesc: A module overriding /list, and making it safe - stop those sendq problems. */
+
+class ModuleSafeList : public Module
+{
+ time_t ThrottleSecs;
+ size_t ServerNameSize;
+ int global_listing;
+ int LimitList;
+ public:
+ ModuleSafeList(InspIRCd* Me) : Module(Me)
+ {
+ OnRehash(NULL, "");
+ }
+
+ virtual ~ModuleSafeList()
+ {
+ }
+
+ virtual void OnRehash(userrec* user, const std::string ¶meter)
+ {
+ ConfigReader MyConf(ServerInstance);
+ ThrottleSecs = MyConf.ReadInteger("safelist", "throttle", "60", 0, true);
+ LimitList = MyConf.ReadInteger("safelist", "maxlisters", "50", 0, true);
+ ServerNameSize = strlen(ServerInstance->Config->ServerName) + 4;
+ global_listing = 0;
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version(1,1,0,0,VF_VENDOR,API_VERSION);
+ }
+
+ void Implements(char* List)
+ {
+ List[I_OnBufferFlushed] = List[I_OnPreCommand] = List[I_OnCleanup] = List[I_OnUserQuit] = List[I_On005Numeric] = List[I_OnRehash] = 1;
+ }
+
+ /*
+ * OnPreCommand()
+ * Intercept the LIST command.
+ */
+ virtual int OnPreCommand(const std::string &command, const char** parameters, int pcnt, userrec *user, bool validated, const std::string &original_line)
+ {
+ /* If the command doesnt appear to be valid, we dont want to mess with it. */
+ if (!validated)
+ return 0;
+
+ if (command == "LIST")
+ {
+ return this->HandleList(parameters, pcnt, user);
+ }
+ return 0;
+ }
+
+ /*
+ * HandleList()
+ * Handle (override) the LIST command.
+ */
+ int HandleList(const char** parameters, int pcnt, userrec* user)
+ {
+ int minusers = 0, maxusers = 0;
+
+ if (global_listing >= LimitList)
+ {
+ user->WriteServ("NOTICE %s :*** Server load is currently too heavy. Please try again later.", user->nick);
+ user->WriteServ("321 %s Channel :Users Name",user->nick);
+ user->WriteServ("323 %s :End of channel list.",user->nick);
+ return 1;
+ }
+
+ /* First, let's check if the user is currently /list'ing */
+ ListData *ld;
+ user->GetExt("safelist_cache", ld);
+
+ if (ld)
+ {
+ /* user is already /list'ing, we don't want to do shit. */
+ return 1;
+ }
+
+ /* Work around mIRC suckyness. YOU SUCK, KHALED! */
+ if (pcnt == 1)
+ {
+ if (*parameters[0] == '<')
+ {
+ maxusers = atoi(parameters[0]+1);
+ ServerInstance->Log(DEBUG,"Max users: %d", maxusers);
+ pcnt = 0;
+ }
+ else if (*parameters[0] == '>')
+ {
+ minusers = atoi(parameters[0]+1);
+ ServerInstance->Log(DEBUG,"Min users: %d", minusers);
+ pcnt = 0;
+ }
+ }
+
+ time_t* last_list_time;
+ user->GetExt("safelist_last", last_list_time);
+ if (last_list_time)
+ {
+ if (ServerInstance->Time() < (*last_list_time)+ThrottleSecs)
+ {
+ user->WriteServ("NOTICE %s :*** Woah there, slow down a little, you can't /LIST so often!",user->nick);
+ user->WriteServ("321 %s Channel :Users Name",user->nick);
+ user->WriteServ("323 %s :End of channel list.",user->nick);
+ return 1;
+ }
+
+ DELETE(last_list_time);
+ user->Shrink("safelist_last");
+ }
+
+
+ /*
+ * start at channel 0! ;)
+ */
+ ld = new ListData(0,ServerInstance->Time(), pcnt ? parameters[0] : "*", minusers, maxusers);
+ user->Extend("safelist_cache", ld);
+
+ time_t* llt = new time_t;
+ *llt = ServerInstance->Time();
+ user->Extend("safelist_last", llt);
+
+ user->WriteServ("321 %s Channel :Users Name",user->nick);
+
+ global_listing++;
+
+ return 1;
+ }
+
+ virtual void OnBufferFlushed(userrec* user)
+ {
+ char buffer[MAXBUF];
+ ListData* ld;
+ if (user->GetExt("safelist_cache", ld))
+ {
+ chanrec* chan = NULL;
+ long amount_sent = 0;
+ do
+ {
+ chan = ServerInstance->GetChannelIndex(ld->list_position);
+ bool has_user = (chan && chan->HasUser(user));
+ long users = chan ? chan->GetUserCounter() : 0;
+
+ bool too_few = (ld->minusers && (users <= ld->minusers));
+ bool too_many = (ld->maxusers && (users >= ld->maxusers));
+
+ if (chan && (too_many || too_few))
+ {
+ ld->list_position++;
+ continue;
+ }
+
+ if ((chan) && (chan->modes[CM_PRIVATE]))
+ {
+ bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str())));
+ if ((users) && (display))
+ {
+ int counter = snprintf(buffer, MAXBUF, "322 %s *", user->nick);
+ amount_sent += counter + ServerNameSize;
+ user->WriteServ(std::string(buffer));
+ }
+ }
+ else if ((chan) && (((!(chan->modes[CM_PRIVATE])) && (!(chan->modes[CM_SECRET]))) || (has_user)))
+ {
+ bool display = (match(chan->name, ld->glob.c_str()) || (*chan->topic && match(chan->topic, ld->glob.c_str())));
+ if ((users) && (display))
+ {
+ int counter = snprintf(buffer, MAXBUF, "322 %s %s %ld :[+%s] %s",user->nick, chan->name, users, chan->ChanModes(has_user), chan->topic);
+ amount_sent += counter + ServerNameSize;
+ user->WriteServ(std::string(buffer));
+ }
+ }
+ else
+ {
+ if (!chan)
+ {
+ if (!ld->list_ended)
+ {
+ ld->list_ended = true;
+ user->WriteServ("323 %s :End of channel list.",user->nick);
+ }
+ }
+ }
+ ld->list_position++;
+ }
+ while ((chan != NULL) && (amount_sent < (user->sendqmax / 4)));
+ if (ld->list_ended)
+ {
+ user->Shrink("safelist_cache");
+ DELETE(ld);
+ global_listing--;
+ }
+ }
+ }
+
+ virtual void OnCleanup(int target_type, void* item)
+ {
+ if(target_type == TYPE_USER)
+ {
+ userrec* u = (userrec*)item;
+ ListData* ld;
+ u->GetExt("safelist_cache", ld);
+ if (ld)
+ {
+ u->Shrink("safelist_cache");
+ DELETE(ld);
+ global_listing--;
+ }
+ time_t* last_list_time;
+ u->GetExt("safelist_last", last_list_time);
+ if (last_list_time)
+ {
+ DELETE(last_list_time);
+ u->Shrink("safelist_last");
+ }
+ }
+ }
+
+ virtual void On005Numeric(std::string &output)
+ {
+ output.append(" SAFELIST");
+ }
+
+ virtual void OnUserQuit(userrec* user, const std::string &message, const std::string &oper_message)
+ {
+ this->OnCleanup(TYPE_USER,user);
+ }
+
+};
+
+MODULE_INIT(ModuleSafeList)
projects / user / henk / code / inspircd.git / blobdiff