noflood.amxx

#include <amxmodx>
#include <orpheu>
#define PLUGIN "Anti flood"
#define VERSION "1.1"
#define AUTHOR "kanagava"
//native halflife_time ( )
// небольшие настройки для плагина
new MAX_WARN=1 //Число предупреждений после которого IP будет забанен рекомендуется [1-2]
new CONN_TIME=2 //Минимальное время между соединениями с сервером для включения првоерок
// (если между подключениями меньше CONN_TIME секунд включаются проверки) рекомендуется [1-3]
new CONN_TIME_IP=3 //Минимальное время между соединениями с одного IP для выдачи предупреждения рекомендуется [1-5]
new RST_WARN_TIME_IP=10 //Максимальное время между соединениями с одного IP для сброса предупреждений
// НЕОБХОДИМО [RST_WARN_TIME_IP>CONN_TIME_IP]

new time_last_conn
new ip_old[256]
new ip_warn[256]
new Msg[256]
new OrpheuHook:handlePrintf
new ip_list[5][16]
new time_list[5]
new warn_list[5]
new old_time
new registered
public plugin_init()
{
register_plugin(PLUGIN, VERSION, AUTHOR)
set_task(5.0, "regfunctions")
register_srvcmd("floodlist","floodlist")
}

public regfunctions()
{
//log_amx("try to reg_func")
OrpheuRegisterHook(OrpheuGetFunction("SV_ConnectClient"),"OnSV_ConnectClientPre", OrpheuHookPre)
OrpheuRegisterHook(OrpheuGetFunction("SV_ConnectClient"),"OnSV_ConnectClientPost", OrpheuHookPost)
server_cmd("mp_logecho 1")
server_cmd("log on")
}

public OrpheuHookReturn:OnSV_ConnectClientPre()
{
registered=0
if(get_systime()-old_time <= CONN_TIME)
{
//log_amx("Reg %d %d ",halflife_time ( ), get_systime())
handlePrintf = OrpheuRegisterHook( OrpheuGetFunction( "Con_Printf" ), "Con_Printf" , OrpheuHookPre);
registered=1
//log_amx("Reg %d %d ",halflife_time ( ), get_systime())
}
old_time=get_systime()
return OrpheuIgnored;
}


public OrpheuHookReturn:OnSV_ConnectClientPost()
{
if(registered)
{
OrpheuUnregisterHook(handlePrintf)
//log_amx("Unreg %d %d ",halflife_time ( ), get_systime())
}
return OrpheuIgnored;
}

public OrpheuHookReturn:Con_Printf(const a[], const message[] )
{
registered=1
if (containi(message,"^" connected, address ^"")!=-1)
{
new msg[256]
copy(msg,255,message)
checkip(msg)
}
return OrpheuIgnored;
}

public floodlist()
{
new h_time[32]
console_print(0,"Floodding IP list by Dan'ka :D")
for (new i=0;i<5;i++)
{ if(time_list[i]!=0)
{
format_time ( h_time,31, "%d.%m %H:%M:%S",time_list[i])
console_print(0,"[%d] [IP %s] [TIME %s] [WARN's %d]",i,ip_list[i],h_time,warn_list[i])
}
}
}

public checkip(message[])
{
new len=255
new temp_right[256],temp_left[256],conn_ip[256]
formatex( Msg,charsmax( Msg ),"%s", message );
split(Msg, temp_left, len, temp_right, len, "^" connected, address ^"")
strtok(temp_right, conn_ip, len, temp_right, len, ':')
new mintime
new replace_index
mintime=get_systime()
for (new i=0;i<5;i++)
{
if (time_list[i]<mintime )
{
mintime=time_list[i]
replace_index=i
}

}
new ipwarn
ipwarn=false
for (new i=0;i<5;i++)
{
if (equal(conn_ip,ip_list[i]) && !equal(conn_ip,""))
{
if ((get_systime()-time_list[i])<CONN_TIME_IP)
{
warn_list[i]=warn_list[i]+1
if(warn_list[i]>MAX_WARN)
{
//log_amx("Ban %d %d ",halflife_time ( ), get_systime())
log_amx("[NOFLOOD] Connection flood detected from ip %s",conn_ip)
server_cmd("addip 120.0 %s",conn_ip)
}
}
else
{
if ((get_systime()-time_list[i])>RST_WARN_TIME_IP)
warn_list[i]=0
}
time_list[i]=get_systime()
ipwarn=true
break
}
}
if (!ipwarn)
{
warn_list[replace_index]=0
time_list[replace_index]=get_systime()
copy(ip_list[replace_index],15,conn_ip)
}
}

{
"name" : "Con_Printf",
"library" : "engine",
"arguments" :
[
{

"type" : "char *"
},
{

"type" : "char *"
}
],
"identifiers" :
[
{

"os" : "windows",

"mod" : "cstrike",

"value" : [0x55,0x8B,"*",0xB8,"*","*","*","*",0xE8,"*","*","*","*",0x8B,0x4D,"*",0x8D,0x45,"*",0x50,0x51,0x8D,0x95,"*","*","*","*",0x68,"*","*","*","*",0x52,0xE8,"*","*","*","*",0x8D,0x85,"*","*","*","*",0x50]
},
{

"os" : "linux",

"mod" : "cstrike",

"value" : "Con_Printf"
}
] }

{
"name" : "SV_ConnectClient",
"library" : "engine",
"identifiers" :
[
{
"os" : "windows",
"value" : [0x55,0x8B,0xEC,0x81,"*","*","*","*","*",0x53,0x56,0x57,0xB9,0x05,0x00,0x00,0x00,0xBE,"*","*","*","*",0x8D,"*","*",0x33,0xDB,0x68,"*","*","*","*"]
},
{
"os" : "linux",
"value" : "SV_ConnectClient"
}
]
}