// This file written mostly by Tim Johnson (Tim@TimMUD)
void check_discs();
string *banned_muds = ({});
mapping bad_connects = ([]);
static void process_startup_req(int protocol, mixed info, int fd){
// Handles startup stuff.
// Loads info into newinfo mapping.
// Error if mud is already connected.
mapping newinfo;
string site_ip;
string *brethren = ({});
// router name is info[4], I'll just pretend I'm every router though, ha-ha!
// also, should verify that all the fields are the right type
check_discs();
server_log("%^BLUE%^process_startup_req: protocol="+protocol+", mud="+info[2]);
if(member_array(info[2], banned_muds) != -1) {
server_log("%^RED%^"+info[2]+" denied. reason: banned.");
trr("---\n","blue");
return;
}
if(!info[2] || !sizeof(info[2])) {
server_log("%^RED%^"+info[2]+" denied. reason: null name");
trr("---\n","blue");
return;
}
foreach(mixed element in keys(mudinfo)){
if(member_array(element,keys(connected_muds)) == -1) continue;
if(mudinfo[element] && mudinfo[element]["ip"] == clean_fd(socket_address(fd)))
brethren += ({ element });
}
trr("Number of muds with the same ip: "+sizeof(brethren));
if(sizeof(brethren) > MAXMUDS && !mudinfo[info[2]]){
write_data(fd,({ "error", 5, router_name, 0, info[2], 0,
"not-allowed", "Too many muds from your IP.", info }) );
return;
}
if(member_array(fd,keys(this_object()->query_connected_fds())) != -1){
string existing_mud = this_object()->query_connected_fds()[fd];
trr("Socket status: "+identify(socket_status(fd)),"red");
server_log("%^RED%^FD CONFLICT, NEW MUD: "+info[2]+", FD: "+fd);
server_log("%^RED%^FD CONFLICT, OLD MUD: "+existing_mud+", FD: "+fd);
trr("---\n","blue");
if(mudinfo[existing_mud]){
mudinfo[existing_mud]["disconnect_time"] = time();
}
if(!existing_mud || existing_mud != info[2]){
map_delete(connected_muds, existing_mud);
schedule_broadcast(existing_mud);
}
}
if(sizeof(info)<18){
// smallest protocol is protocol 1/2 which have size 18
write_data(fd,({
"error",
5,
router_name,
0,
info[2],
0,
"bad-pkt",
"Bad startup_req packet",
info
}));
return;
}
site_ip=socket_address(fd);
site_ip = clean_fd(site_ip);
newinfo = ([
"name":info[2],
"ip":site_ip,
"connect_time":time(),
"disconnect_time":0,
"password":info[6],
"old_mudlist_id":info[7],
"old_chanlist_id":info[8],
"player_port":info[9],
"imud_tcp_port":info[10],
"imud_udp_port":info[11],
"mudlib":info[12],
"base_mudlib":info[13],
"driver":info[14],
"mud_type":info[15],
"open_status":info[16],
"protocol":protocol,
"restart_delay":-1,
"router" : my_name,
]);
if(protocol == 2 && sizeof(info) == 20 ) protocol = 3;
switch(protocol){
case 1:
case 2:
if(sizeof(info)!=18){
server_log("error: wrong size packet. Got: "+sizeof(info)+", wanted 18");
trr("---\n","blue");
write_data(fd,({
"error",
5,
router_name,
0,
info[2],
0,
"bad-pkt",
"Bad startup_req packet",
info
}));
return;
}
newinfo["services"]=info[17];
newinfo["admin_email"]="Unknown"; // only in protocol 3
newinfo["other_data"]=0; // only in protocol 3
break;
case 3:
if(sizeof(info)!=20){
server_log("error. wrong size packet. Got: "+sizeof(info)+", wanted 20");
trr("---\n","blue");
write_data(fd,({
"error",
5,
router_name,
0,
info[2],
0,
"bad-pkt",
"Bad startup_req packet",
info
}));
return;
}
newinfo["admin_email"]=info[17];
newinfo["services"]=info[18];
newinfo["other_data"]=info[19];
break;
default:
server_log("error. I dunno what.");
write_data(fd,({
"error",
5,
router_name,
0,
info[2], // mud name
0,
"not-imp",
"unknown protocol: "+protocol,
info
}));
return;
}
// Check valid values...
if(
!stringp(newinfo["open_status"]) ||
!stringp(newinfo["admin_email"]) ||
!stringp(newinfo["mud_type"]) ||
!stringp(newinfo["driver"]) ||
!stringp(newinfo["base_mudlib"]) ||
!stringp(newinfo["mudlib"]) ||
!mapp(newinfo["services"]) ||
!intp(newinfo["imud_udp_port"]) ||
!intp(newinfo["imud_tcp_port"]) ||
!intp(newinfo["player_port"]) ||
!intp(newinfo["password"]) ||
!intp(newinfo["old_chanlist_id"]) ||
!intp(newinfo["old_mudlist_id"]) ||
(!mapp(newinfo["other_data"]) && newinfo["other_data"]!=0)
){
write_data(fd,({
"error",
5,
router_name,
0,
info[2],
0,
"bad-pkt",
"Bad startup_req packet",
info
}));
return;
}
if(!undefinedp(connected_muds[info[2]])){
// if MUD is already connected
trr("ROUTER_D: mud already connected on fd"+connected_muds[info[2]],"red");
trr("ROUTER_D: Xref back: mud on fd"+connected_muds[info[2]]+" is "+
"supposed to be "+this_object()->query_connected_fds()[this_object()->query_connected_muds()[info[2]]],"red");
server_log("mud already connected");
trr("---\n","blue");
if(this_object()->query_mudinfo()[info[2]]["ip"] != explode(socket_address(fd)," ")[0] ||
mudinfo[info[2]]["password"] != newinfo["password"]){
write_data(fd,({
"error",
5,
router_name,
0,
info[2], // mud name
0,
"bad-proto", // doesn't seem to me like it should be bad-proto...
// see what the official one uses for this
// it might just boot the earlier MUD off?
"MUD already connected", // Error message
info
}));
//This message to the already-connected mud serves
//to alert the legit mud that something may be wrong, and
//also will trigger a closure of the socket if it turns out
//to actually be in a zombie state.
write_data(connected_muds[info[2]],({
"error",
5,
router_name,
0,
info[2], // mud name
0,
"bad-mojo",
"Another mud is trying to be you.",
({ explode(socket_address(fd)," ")[0], info[12], info[13], info[17], info[9] })
}));
return;
}
if(this_object()->query_mudinfo()[info[2]]["ip"] == explode(socket_address(fd)," ")[0] &&
mudinfo[info[2]]["password"] == newinfo["password"] ){
server_log("Since it's the same ip and password, I'll remove the current connection");
if(mudinfo[info[2]]) mudinfo[info[2]]["disconnect_time"] = time();
map_delete(connected_muds, info[2]);
schedule_broadcast(info[2]);
}
}
if(mudinfo[info[2]] && sizeof(mudinfo[info[2]]) && mudinfo[info[2]]["password"] != newinfo["password"]){
// if MUD is already known, not connected, and wrong password
if(newinfo["ip"]==mudinfo[info[2]]["ip"]){
// same IP as last time and it isn't Dead Souls
server_log("Wrong password, but right IP");
trr("Expected "+mudinfo[info[2]]["password"]+
" but got "+newinfo["password"]);
write_data(fd,({
"error",5,router_name,0,info[2],0,
"warning", // nothing in error summary that seems applicable?
// Change later if I find a better error code
"wrong password, but I'll allow you since it's the same IP as last time",0
}));
}
else{
trr("wrong password, and from a new IP","red");
trr("---\n","blue");
if(!bad_connects[newinfo["ip"]]) bad_connects[newinfo["ip"]] = 1;
else bad_connects[newinfo["ip"]] = bad_connects[newinfo["ip"]] + 1;
if(bad_connects[newinfo["ip"]] > 100){
trr("ROUTER_D: "+newinfo["ip"]+" blacklisted!","red");
this_object()->AddBlacklistedMud(newinfo["ip"]);
bad_connects[newinfo["ip"]] = 0;
}
server_log("%^RED%^WRONG PASSWORD, AND FROM A NEW IP");
write_data(fd,({
"error",
5,
router_name,
0,
info[2], // mud name
0,
"not-allowed", // Change later!
"wrong password, and from a new IP", // Error message
info
}));
return;
}
}
if(!mudinfo[info[2]] || !newinfo["password"] || mudinfo[info[2]]["password"] != newinfo["password"] ){
// if new MUD, assign it a password
newinfo["password"]=random_numbers(9,1);
trr("ROUTER_D: Assigning password "+newinfo["password"],"white");
// Change this maybe... see if the password is supposed to be in a certain range
}
else {
trr("ROUTER_D: password: Known: "+mudinfo[info[2]]["password"]+", current: "+newinfo["password"],"green");
}
// MUD should be okay at this point.
mudinfo[info[2]]=newinfo; // update the mudinfo
connected_muds[info[2]] = fd; // add this MUD to list of connected muds
send_startup_reply(info[2]); // reply to MUD
mudinfo_update_counter++;
mudinfo_updates[info[2]]=mudinfo_update_counter;
send_mudlist_updates(info[2], newinfo["old_mudlist_id"]);
send_full_mudlist(info[2]);
broadcast_mudlist(info[2]);
broadcast_chanlist("foo",info[2]);
if(bad_connects[newinfo["ip"]]) bad_connects[newinfo["ip"]] = 0;
if(member_array("channel", keys(newinfo["services"])) != -1){
}
else {
trr("It looks like "+info[2]+" doesn't have a channel service?!?","blue");
}
trr(timestamp()+" process_startup_req: for mud: "+info[2]+" complete.\n---\n","blue");
}
