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authorroot <root@e03df62e-2008-0410-955e-edbf42e46eb7>2006-01-24 16:22:09 +0000
committerroot <root@e03df62e-2008-0410-955e-edbf42e46eb7>2006-01-24 16:22:09 +0000
commit2dfe8acc52c34a8aafcc40e2a47638a2e11c5326 (patch)
tree8d61a1e38af9cc570b79441c1459beff089767e4 /src/modules
parent36ddc3aa112918b81ab542ff745ab6c14b879ef0 (diff)
Added joinflood +j
git-svn-id: http://svn.inspircd.org/repository/trunk/inspircd@2878 e03df62e-2008-0410-955e-edbf42e46eb7
Diffstat (limited to 'src/modules')
-rw-r--r--src/modules/m_joinflood.cpp274
1 files changed, 274 insertions, 0 deletions
diff --git a/src/modules/m_joinflood.cpp b/src/modules/m_joinflood.cpp
new file mode 100644
index 000000000..8d0716d22
--- /dev/null
+++ b/src/modules/m_joinflood.cpp
@@ -0,0 +1,274 @@
+/* +------------------------------------+
+ * | 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 "helperfuncs.h"
+
+/* $ModDesc: Provides channel mode +f (message flood protection) */
+
+class joinfloodsettings
+{
+ public:
+
+ int secs;
+ int joins;
+ time_t reset;
+ time_t unlocktime;
+ int counter;
+ bool locked;
+
+ joinfloodsettings() : secs(0), joins(0) {};
+ joinfloodsettings(int b, int c) : secs(b), joins(c)
+ {
+ reset = time(NULL) + secs;
+ counter = 0;
+ locked = false;
+ log(DEBUG,"Create new joinfloodsettings: %lu %lu",time(NULL),reset);
+ };
+
+ void addjoin()
+ {
+ counter++;
+ if (time(NULL) > reset)
+ {
+ counter = 0;
+ reset = time(NULL) + secs;
+ }
+ }
+
+ bool shouldlock()
+ {
+ return (counter >= this->joins);
+ }
+
+ void clear()
+ {
+ counter = 0;
+ }
+
+ bool islocked()
+ {
+ if (locked)
+ {
+ if (time(NULL) > unlocktime)
+ {
+ locked = false;
+ return false;
+ }
+ else
+ {
+ return true;
+ }
+ }
+ return false;
+ }
+
+ void lock()
+ {
+ locked = true;
+ unlocktime = time(NULL) + 60;
+ }
+
+
+};
+
+class ModuleJoinFlood : public Module
+{
+ Server *Srv;
+
+ public:
+
+ ModuleJoinFlood(Server* Me)
+ : Module::Module(Me)
+ {
+ Srv = Me;
+ Srv->AddExtendedMode('j',MT_CHANNEL,false,1,0);
+ }
+
+ virtual int OnExtendedMode(userrec* user, void* target, char modechar, int type, bool mode_on, string_list &params)
+ {
+ if ((modechar == 'j') && (type == MT_CHANNEL))
+ {
+ if (mode_on)
+ {
+ std::string FloodParams = params[0];
+ chanrec* c = (chanrec*)target;
+ char ndata[MAXBUF];
+ char* data = ndata;
+ strlcpy(ndata,FloodParams.c_str(),MAXBUF);
+ char* joins = data;
+ char* secs = NULL;
+ while (*data)
+ {
+ if (*data == ':')
+ {
+ *data = 0;
+ data++;
+ secs = data;
+ break;
+ }
+ else data++;
+ }
+ if (secs)
+ {
+ /* Set up the flood parameters for this channel */
+ int njoins = atoi(joins);
+ int nsecs = atoi(secs);
+ if ((njoins<1) || (nsecs<1))
+ {
+ WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
+ return 0;
+ }
+ else
+ {
+ if (!c->GetExt("joinflood"))
+ {
+ joinfloodsettings *f = new joinfloodsettings(njoins,nsecs);
+ c->Extend("joinflood",(char*)f);
+ }
+ }
+ return 1;
+ }
+ else
+ {
+ WriteServ(user->fd,"608 %s %s :Invalid flood parameter",user->nick,c->name);
+ return 0;
+ }
+
+ }
+ else
+ {
+ chanrec* c = (chanrec*)target;
+ if (c->GetExt("joinflood"))
+ {
+ joinfloodsettings *f = (joinfloodsettings*)c->GetExt("joinflood");
+ delete f;
+ c->Shrink("joinflood");
+ }
+ }
+ return 1;
+ }
+ return 0;
+ }
+
+ virtual int OnUserPreJoin(userrec* user, chanrec* chan, const char* cname)
+ {
+ if (chan)
+ {
+ joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
+ if (f)
+ {
+ if (f->islocked())
+ {
+ WriteServ(user->fd,"609 %s %s :This channel is temporarily unavailable (+j). Please try again later.",user->nick,chan->name);
+ return 1;
+ }
+ }
+ }
+ return 0;
+ }
+
+ virtual void OnUserJoin(userrec* user, chanrec* channel)
+ {
+ joinfloodsettings *f = (joinfloodsettings*)channel->GetExt("joinflood");
+ if (f)
+ {
+ f->addjoin();
+ if (f->shouldlock())
+ {
+ f->clear();
+ f->lock();
+ WriteChannelWithServ((char*)Srv->GetServerName().c_str(), channel, "NOTICE %s :This channel has been closed to new users for 60 seconds because there have been more than %d joins in %d seconds.",channel->name,f->joins,f->secs);
+ }
+ }
+ }
+
+ void OnChannelDelete(chanrec* chan)
+ {
+ if (chan->GetExt("joinflood"))
+ {
+ joinfloodsettings *f = (joinfloodsettings*)chan->GetExt("joinflood");
+ delete f;
+ chan->Shrink("joinflood");
+ }
+ }
+
+ void Implements(char* List)
+ {
+ List[I_On005Numeric] = List[I_OnExtendedMode] = List[I_OnChannelDelete] = List[I_OnUserPreJoin] = List[I_OnUserJoin] = 1;
+ }
+
+ virtual void On005Numeric(std::string &output)
+ {
+ std::stringstream line(output);
+ std::string temp1, temp2;
+ while (!line.eof())
+ {
+ line >> temp1;
+ if (temp1.substr(0,10) == "CHANMODES=")
+ {
+ // By doing this we're *assuming* no other module has fucked up the CHANMODES=
+ // section of the 005 numeric. If they have, we're going DOWN in a blaze of glory,
+ // with a honking great EXCEPTION :)
+ temp1.insert(temp1.find(",")+1,"j");
+ }
+ temp2 = temp2 + temp1 + " ";
+ }
+ if (temp2.length())
+ output = temp2.substr(0,temp2.length()-1);
+ }
+
+ virtual ~ModuleJoinFlood()
+ {
+ }
+
+ virtual Version GetVersion()
+ {
+ return Version(1,0,0,0,VF_STATIC|VF_VENDOR);
+ }
+};
+
+
+class ModuleJoinFloodFactory : public ModuleFactory
+{
+ public:
+ ModuleJoinFloodFactory()
+ {
+ }
+
+ ~ModuleJoinFloodFactory()
+ {
+ }
+
+ virtual Module * CreateModule(Server* Me)
+ {
+ return new ModuleJoinFlood(Me);
+ }
+
+};
+
+
+extern "C" void * init_module( void )
+{
+ return new ModuleJoinFloodFactory;
+}
+