// I3 server. // This file written mostly by Tim Johnson (Tim@TimMUD) // Started by Tim on May 7, 2003. // http://cie.imaginary.com/protocols/intermud3.html#errors #include <lib.h> #include <commands.h> #include <daemons.h> #include <socket.h> #define MAXMUDS 32 // Max number of muds allowed from one IP #define ROUTER_BLACKLIST "/secure/daemon/i3router/blacklist.cfg" //bad IP's #define DEB_IN 1 // //trr-Incoming #define DEB_OUT 2 // //trr-Outgoing #define DEB_INVALID 3 // //trr-Invalid #define DEB_OTHER 0 // //trr-Other #define DEBUGGER_GUY "cratylus" // Name of who to display //trrging info to. #undef DEBUGGER_GUY #define DEBUGGER_GUY "MXLPLX" #define MAXIMUM_RETRIES 20 // SEND_WHOLE_MUDLIST makes it act like the official I3 server instead of like the I3 specs #define SEND_WHOLE_MUDLIST // SEND_WHOLE_CHANLIST makes it act like the official I3 server instead of like the I3 specs #define SEND_WHOLE_CHANLIST inherit LIB_DAEMON; object cmd = load_object(CMD_ROUTER); object rsocket = find_object(RSOCKET_D); static void validate(){ if( previous_object() != cmd && previous_object() != rsocket && previous_object() != this_object() && !((int)master()->valid_apply(({ "ASSIST" }))) ){ trr("SECURITY ALERT: validation failure in ROUTER_D.","red"); error("Illegal attempt to access router daemon: "+get_stack()+ " "+identify(previous_object(-1))); } } // Saved variables... mapping listening; // list of muds listening to each channel // (key=chan name, value=mud array) mapping connected_muds; // muds that have successfully done a startup // (key=mudname, value=fd) string router_name; // Name of the router. string router_ip; string *router_list = ({}); // Ordered list of routers to use. mapping mudinfo = ([]); // Info about all the muds which the router knows about. mapping channels; // Info about all the channels the router handles. mapping channel_updates; // Tells when a channel was last changed. int channel_update_counter; // Counter for the most recent change. // Why is this not a part of the channels mapping? // Because I need to remember that some channels got deleted. mapping mudinfo_updates; // Like channel_updates except for muds. int mudinfo_update_counter; // Similar to channel_update_counter // Prototypes static mapping muds_on_this_fd(int fd); static mapping muds_not_on_this_fd(int fd); void write_data(int fd, mixed data); static void close_connection(int fd); static void broadcast_data(mapping targets, mixed data); // Ones with their own files... string clean_fd(string fd); static void broadcast_chanlist(string channame); static void broadcast_mudlist(string mudname); static varargs void Debug(string str, int level); static void process_channel(int fd, mixed *info); static void process_startup_req(int protocol, mixed info, int fd); static void read_callback(int fd, mixed info); static void remove_mud(string mudname, int forced); static void send_chanlist_reply(string mudname, int old_chanid); static void send_mudlist(string mudname); static void send_mudlist_updates(string updating_mudname, int old_mudlist_id); static void send_startup_reply(string mudname); static void send_error(string mud, string user, string errcode, string errmsg, mixed *info); void send_full_mudlist(string mud); // core_stuff.h... static void create(); static void setup(); void remove(); // funcs.h... static mapping muds_on_this_fd(int fd); int value_equals(string a,int b, int c); static mapping muds_not_on_this_fd(int fd); int value_not_equals(string a,int b, int c); // socket_stuff.h varargs string *SetList(); // Code for all the stuff in the prototypes... #include "./irn.h" #include "./clean_fd.h" #include "./broadcast_chanlist.h" #include "./broadcast_mudlist.h" #include "./debug.h" #include "./process_channel.h" #include "./process_startup_req.h" #include "./read_callback.h" #include "./remove_mud.h" #include "./send_chanlist_reply.h" #include "./send_mudlist_updates.h" #include "./send_startup_reply.h" #include "./send_error.h" #include "./core_stuff.h" #include "./funcs.h" #include "./hosted_channels.h" #include "./send_full_mudlist.h" static void close_connection(int fd){ RSOCKET_D->close_connection(fd); } void write_data(int fd, mixed data){ RSOCKET_D->write_data(fd, data); } static void broadcast_data(mapping targets, mixed data){ RSOCKET_D->broadcast_data(targets, data); } // debugging stuff... mapping query_mudinfo(){ validate(); return copy(mudinfo); } mapping query_mud(string str){ validate(); return copy(mudinfo[str]); } mapping query_connected_muds(){ validate(); return copy(connected_muds); } mapping query_socks(){ validate(); return RSOCKET_D->query_socks(); } mapping query_chaninfo(){ return ([ "listening" : listening, "channels" : channels ]); } mapping query_connected_fds(){ mapping RetMap = ([]); validate(); foreach(mixed key, mixed val in connected_muds){ RetMap[val] = key; } return copy(RetMap); } int *open_socks(){ int *ret = ({}); validate(); foreach(mixed element in socket_status()){ if(intp(element[0]) && element[0] != -1 && !grepp(element[3],"*") && last_string_element(element[3],".") == router_port) { ret += ({ element[0] }); } } return ret; } void get_info() { mixed *socky = open_socks(); string socks = implode(socky, " "); int socknum = sizeof(socky); validate(); socks += "\nTotal number of connected muds: "+socknum+"\n"; write_file ("/secure/tmp/info.txt", "router_name: "+router_name+ "\nrouter_ip: "+router_ip+ "\nrouter_port: "+router_port+ "\nrouter_list"+identify(router_list)+ "\nchannel_update_counter: "+ channel_update_counter+ "\nchannels:"+identify(channels)+ "\nchannel_updates:"+identify(channel_updates)+ //"\nlistening:"+identify(listening)+ //"\nmudinfo:"+identify(mudinfo)+ "\nmudinfo_update_counter: "+ mudinfo_update_counter+ "\nmudinfo_updates:"+identify(mudinfo_updates)+ "\nconnected:"+identify(connected_muds)+"\n"); write("router_name: "+router_name+ "\nrouter_ip: "+router_ip+ "\nrouter_port: "+router_port+ "\nrouter_list"+identify(router_list)+ "\nchannel_update_counter: "+ channel_update_counter+ ((sizeof(channels)) ? "\nchannels:"+implode(keys(channels),", ") : "")+ "\nmudinfo_update_counter: "+ mudinfo_update_counter+ "\nsockets: "+socks+ "\n"+Report() ); } void clear(){ string mudname; validate(); log_file("router/server_log",timestamp()+" Clearing all mud data.\n"); foreach(mudname in keys(mudinfo)) remove_mud(mudname,1); save_object(SAVE_ROUTER); } string GetRouterName(){ validate(); return router_name; } string SetRouterName(string str){ validate(); if(first(str,1) != "*") str = "*"+str; router_name = str; log_file("router/server_log",timestamp()+" setting router name to: "+str+"\n"); SetList(); return router_name; } string GetRouterIP(){ validate(); return router_ip; } string SetRouterIP(string str){ validate(); router_ip = str; log_file("router/server_log",timestamp()+" setting router IP to: "+str+"\n"); SetList(); return router_ip; } string GetRouterPort(){ validate(); return router_port; } string SetRouterPort(string str){ validate(); router_port = str; log_file("router/server_log",timestamp()+" setting router port to: "+str+"\n"); SetList(); return router_port; } string *GetRouterList(){ validate(); return router_list; } varargs string *SetList(){ string tmp; string tmp_port = router_port; string tmp_ip = router_ip; validate(); if(!strsrch(router_name,"*")) tmp = router_name; else tmp = "*"+router_name; if(lower_case(mud_name()) == "frontiers"){ tmp_port = "23"; tmp_ip = "149.152.218.102"; tmp = "*yatmim"; } router_list = ({ ({ tmp, tmp_ip+" "+tmp_port }) }); save_object(SAVE_ROUTER); log_file("router/server_log",timestamp()+" setting router list to: "+identify(router_list)+"\n"); save_object(SAVE_ROUTER); return router_list; } varargs string *SetRouterList(string *str){ string tmp; string tmp_port = router_port; string tmp_ip = router_ip; validate(); return router_list; if(!strsrch(router_name,"*")) tmp = router_name; else tmp = "*"+router_name; if(!str || !sizeof(str)){ if(lower_case(mud_name()) == "frontiers"){ tmp_port = "23"; tmp_ip = "149.152.218.102"; tmp = "*yatmim"; } router_list = ({ ({ tmp, tmp_ip+" "+tmp_port }) }); save_object(SAVE_ROUTER); return router_list; } router_list = ({ str }); log_file("router/server_log",timestamp()+" setting router list to: "+identify(router_list)+"\n"); save_object(SAVE_ROUTER); return router_list; } mapping GetConnectedMuds(){ validate(); return copy(connected_muds); } string *GetBannedMuds(){ validate(); return banned_muds; } string *AddBannedMud(string str){ validate(); banned_muds += ({ str }); log_file("router/server_log",timestamp()+" "+str+" has been BANNED\n"); save_object(SAVE_ROUTER); return banned_muds; } string *RemoveBannedMud(string str){ validate(); banned_muds -= ({ str }); log_file("router/server_log",timestamp()+" "+str+" has been unbanned.\n"); save_object(SAVE_ROUTER); return banned_muds; } string *GetBlacklistedMuds(){ validate(); return blacklisted_muds; } string *AddBlacklistedMud(string str){ validate(); blacklisted_muds += ({ str }); log_file("router/server_log",timestamp()+" "+str+" has been BLACKLISTED\n"); save_object(SAVE_ROUTER); return blacklisted_muds; } string *RemoveBlacklistedMud(string str){ validate(); blacklisted_muds -= ({ str }); log_file("router/server_log",timestamp()+" "+str+" has been unblacklisted.\n"); save_object(SAVE_ROUTER); return blacklisted_muds; } void check_discs(){ int *fds = values(connected_muds); fds += keys(irn_sockets); foreach(int element in sort_array(fds,1)){ string lost_mud; if(!socket_status(element) || socket_status(element)[1] == "CLOSED"){ foreach(string key, mixed val in mudinfo){ if(!connected_muds[key] && mudinfo[key]["router"] && mudinfo[key]["router"] == my_name){ disconnect_mud(key); } } foreach(string key, int val in connected_muds){ if(val == element){ trr("REMOVING DISCONNECTED: "+key+" from "+val); disconnect_mud(key); } } foreach(mixed key, mixed val in irn_sockets){ map_delete(irn_sockets, key); } } } } void clear_discs(){ string mudname; validate(); foreach(mudname in keys(mudinfo)) { if(query_mud(mudname)["disconnect_time"] > 604800 ){ //trr("I want to remove "+mudname+". Its disconnect time is "+ctime(query_mud(mudname)["disconnect_time"]),"white"); //trr("Which was "+time_elapsed(time() - query_mud(mudname)["disconnect_time"])+" ago.","white"); if(member_array(mudname,keys(query_connected_muds())) != -1){ //trr("Its fd is: "+query_connected_muds()[mudname],"white"); } else { //trr("It is not listed as a connected mud.","white"); } //trr("Removing disconnected mud: "+identify(mudname),"red"); remove_mud(mudname,1); } if(mudinfo[mudname] && mudinfo[mudname]["disconnect_time"] > 0 && mudinfo[mudname]["connect_time"] > 0){ //trr("I want to remove "+mudname+". It is in a paradox state.","white"); if(member_array(mudname,keys(query_connected_muds())) != -1){ //trr("Its fd is: "+query_connected_muds()[mudname],"white"); } else { //trr("It is not listed as a connected mud.","white"); } //trr("Removing disconnected mud: "+identify(mudname),"red"); remove_mud(mudname,1); } } } int eventDestruct(){ validate(); save_object(SAVE_ROUTER); daemon::eventDestruct(); } string query_fd_info(mixed foo){ int num, i; string ret = ""; validate(); if(stringp(foo)) if(sscanf(foo,"%d",num) != 1) return "foo"; if(intp(foo)) num = foo; for(i=0;i<num;i++){ mapping bar = query_connected_fds(); ret += i+" "+socket_address(i)+" "+(bar[i]+"" || "")+"\n"; } return ret; } int GetMaxRetries(){ return MAXIMUM_RETRIES; } varargs void ReceiveList(mixed data, string type){ //trr("ReceiveList: " +identify(keys(data)),"red"); //trr("ReceiveList ("+type+"): " +identify(data),"red"); //trr("Current muds: "+identify(keys(mudinfo))); if(!type || !sizeof(type)) type = "mudlist"; if(!mapp(data)){ //trr("router: ReceiveList: NOT A MAPPING: "+get_stack(),"red"); return; } if(type == "mudlist"){ foreach(mixed key, mixed val in data){ if(mudinfo[key] && intp(val)){ trr("ROUTER_D: deleting "+key); mudinfo[key]["disconnect_time"] = time(); mudinfo[key]["connect_time"] = 0; broadcast_mudlist(key, 1); map_delete(mudinfo, key); continue; } if(!mudinfo[key] || member_array(key,keys(connected_muds)) == -1){ //trr("received remote list: "+key,"white"); if(!mapp(val)){ //trr("VAL NOT A MAPPING. key: "+identify(key)+", val: "+identify(val),"blue"); return; } //trr("accepting "+key+" into mudinfo mapping.","cyan"); mudinfo_update_counter++; mudinfo_updates[key] = mudinfo_update_counter; mudinfo[key]=val; broadcast_mudlist(key, 1); } else { //trr("router: REJECTING "+key+".","white"); } } } else if(type == "chanlist"){ //trr("Current muds: "+identify(keys(mudinfo))); if(data["listening"] && sizeof(data["listening"]) && mapp(data["listening"])){ foreach(mixed key, mixed val in data["listening"]){ listening[key] = val; //trr("listening update: "+key+" is "+identify(val)); } } if(data["channels"] && sizeof(data["channels"]) && mapp(data["channels"])){ foreach(mixed key, mixed val in data["channels"]){ if(val == -1) map_delete(channels, key); if(val == -1) map_delete(listening, key); else { val[2] = singular_array(val[2]); channels[key] = val; } broadcast_chanlist(key); //trr("chan update: "+key+" is "+identify(val)); } } } save_object(SAVE_ROUTER); } int purge_crud(){ foreach(mixed key, mixed val in mudinfo){ if(!mapp(val)) map_delete(mudinfo, key); } save_object(SAVE_ROUTER); return sizeof(mudinfo); } varargs int purge_ip(string ip, int rude){ mixed *sock_array = socket_status(); validate(); foreach(mixed element in sock_array){ int fd = member_array(element, sock_array); if(last_string_element(socket_status(fd)[3],".") != router_port) continue; if(member_array(fd,keys(irn_sockets)) != -1) continue; if(clean_fd(socket_address(fd)) == ip){ if(query_connected_fds()[fd]){ if(rude){ trr("router: fd to be purged: "+fd+", "+query_connected_fds()[fd]); disconnect_mud(query_connected_fds()[fd]); } } else { trr("router: purging fd:"+fd+", status: "+identify(socket_status(fd))); close_connection(fd); } } } return 1; } varargs int purge_ips(int rude){ int i, quant = sizeof(socket_status()); string ip_address; for(i = 0; i < quant; i++){ ip_address = socket_status(i)[3]; if(last_string_element(ip_address,".") == router_port ){ ip_address = replace_string(socket_status(i)[4],"."+last_string_element(socket_status(i)[4],"."),""); purge_ip(ip_address,(rude || 0)); } } return 1; }