/* -*- LPC -*- */
/*
* $Locker: $
* $Id: intermud.c,v 1.16 2003/05/03 07:42:44 ceres Exp $
*/
/* /daemon/intermud.c
* from the Nightmare IV LPC Library
* daemon handling the InterMUD-3 Protocol
* created by Descartes of Borg 950506
* modified for the Discworld mudlib by Turrican 30-10-95
*/
#ifndef __PACKAGE_SOCKETS__
#error You should not try and load /daemon/intermud.c with no sockets package.
#else
#include <network.h>
inherit CLIENT;
#include "intermud.h"
private int Password;
private class list MudList, ChannelList;
private mapping Banned;
nosave private mixed *Nameservers;
private nosave int Connected, Tries, Fd;
protected void create() {
client::create();
Connected = 0;
Password = 0;
Tries = 0;
Fd = 0;
Banned = ([]);
Nameservers = ({ ({ "*yatmim", "149.152.218.102 23" }) });
MudList = new(class list);
ChannelList = new(class list);
MudList->ID = -1;
MudList->List = ([]);
ChannelList->ID = -1;
ChannelList->List = ([]);
if( file_size( SAVE_INTERMUD __SAVE_EXTENSION__ ) > 0 )
unguarded((: restore_object, SAVE_INTERMUD, 1 :));
SetSocketType(MUD);
SetDestructOnClose(1);
call_out( (: Setup :), 2);
}
void eventExternWrite( mixed *packet ) {
return eventWrite(Fd, packet);
}
void eventWrite(int fd, mixed *packet) {
return client::eventWrite(fd, packet);
}
protected void Setup() {
string ip;
int port;
if( !Nameservers || !sizeof(Nameservers) ) return;
sscanf(Nameservers[0][1], "%s %d", ip, port);
if( (Fd = eventCreateSocket(ip, port)) < 0 ) return;
eventWrite(Fd, ({ "startup-req-3", 5, mud_name(), 0, Nameservers[0][0], 0,
Password, MudList->ID, ChannelList->ID, PORT_MUD,
PORT_OOB, 0, MUDLIB_VERSION,
mud_name(), __VERSION__, "LPMud",
STATUS, ADMIN_ADDRESS,
(mapping)SERVICES_D->GetServices(), 0 }) );
}
protected void eventRead(int fd, mixed *packet) {
mixed val;
string cle;
if( !packet || sizeof(packet) < 6 ) return; /* should send error */
if( Banned[packet[1]] ) {
/* build error packet, let them know why they are banned */
return;
}
switch(packet[0]) {
case "startup-reply":
if( sizeof(packet) != 8 ) return; /* should send error */
if( !sizeof(packet[6]) ) return;
if( packet[6][0][0] == Nameservers[0][0] ) {
Nameservers = packet[6];
Connected = 1;
Password = packet[7];
unguarded((: save_object, SAVE_INTERMUD, 2 :));
}
else {
Nameservers = packet[6];
Setup();
}
return;
case "mudlist":
if( sizeof(packet) != 8 ) return;
if( packet[6] == MudList->ID ) return;
if( packet[2] != Nameservers[0][0] ) return;
MudList->ID = packet[6];
foreach(cle, val in packet[7]) {
if( !val && MudList->List[cle] != 0 )
map_delete(MudList->List, cle);
else if( val ) MudList->List[cle] = val;
}
unguarded((: save_object, SAVE_INTERMUD, 2 :));
return;
case "auth-mud-req":
SERVICES_D->eventReceiveAuthRequest(packet);
break;
case "auth-mud-reply":
SERVICES_D->eventReceiveAuthReply(packet);
break;
case "channel-e":
SERVICES_D->eventReceiveChannelEmote(packet);
break;
case "channel-m":
SERVICES_D->eventReceiveChannelMessage(packet);
break;
case "chan-who-reply":
SERVICES_D->eventReceiveChannelWhoReply(packet);
break;
case "chan-who-req":
SERVICES_D->eventReceiveChannelWhoRequest(packet);
break;
case "chan-user-req":
SERVICES_D->eventReceiveChannelUserRequest(packet);
break;
case "chanlist-reply":
// if( packet[6] == ChannelList->ID ) return;
if( packet[2] != Nameservers[0][0] ) return;
ChannelList->ID = packet[6];
foreach(cle, val in packet[7]) {
if( !val && ChannelList->List != 0 )
map_delete(ChannelList->List, cle);
else if( val ) ChannelList->List[cle] = val;
}
unguarded((: save_object, SAVE_INTERMUD, 2 :));
SERVICES_D->eventRegisterChannels(packet[7]);
return;
case "emoteto":
SERVICES_D->eventReceiveEmote(packet);
break;
case "finger-req":
SERVICES_D->eventReceiveFingerRequest(packet);
break;
case "finger-reply":
SERVICES_D->eventReceiveFingerReply(packet);
break;
case "locate-req":
SERVICES_D->eventReceiveLocateRequest(packet);
break;
case "locate-reply":
SERVICES_D->eventReceiveLocateReply(packet);
break;
case "tell":
SERVICES_D->eventReceiveTell(packet);
break;
case "who-req":
SERVICES_D->eventReceiveWhoRequest(packet);
break;
case "who-reply":
SERVICES_D->eventReceiveWhoReply(packet);
break;
case "error":
SERVICES_D->eventReceiveError(packet);
break;
default:
break;
}
}
protected void eventSocketClose(int fd) {
int extra_wait;
extra_wait = (Tries++) * 20;
if( extra_wait > 600 ) extra_wait = 600;
Connected = 0;
Fd = 0;
call_out( (: Setup :), 20 + extra_wait);
}
protected void eventConnectionFailure() {
if( Connected ) return;
error("Failed to find a useful name server.\n");
}
int SetSocketType(int x) { return client::SetSocketType(MUD); }
int SetDestructOnClose(int x) { return 0; }
string GetMudName(string mud) {
string *lc, *uc;
int x;
if( MudList->List[mud] ) return mud;
lc = map(uc = keys(MudList->List), function(string str) {
if( !str ) return "";
else return lower_case(str);
});
x = member_array(lower_case(mud), lc);
if( x < 0 ) return 0;
else return uc[x];
}
mapping GetMudList() { return copy(MudList->List); }
string *GetMuds() { return keys(MudList->List); }
mapping GetChannelList() { return copy(ChannelList->List); }
string *GetChannels() { return keys(ChannelList->List); }
string *GetMatch(string mud) {
string *uc, *lc;
mud = lower_case(mud);
lc = map(uc = keys(MudList->List), (: lower_case :));
return map(filter(regexp(lc, "^"+mud, 1), (: intp :)), (: $(uc)[$1] :));
}
string GetNameserver() { return Nameservers[0][0]; }
#endif /* __PACKAGE_SOCKETS__ */
