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server.cpp
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5068 lines (4686 loc) · 192 KB
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// server.cpp: little more than enhanced multicaster
// runs dedicated or as client coroutine
#include "cube.h"
#ifdef STANDALONE
#define DEBUGCOND (true)
#else
VARP(serverdebug, 0, 0, 1);
#define DEBUGCOND (serverdebug==1)
#endif
#include "server.h"
#include "servercontroller.h"
#include "serverfiles.h"
#include "signal.h"
struct servergame
{
int mastermode;
bool autoteam;
int matchteamsize;
bool forceintermission;
string servdesc_current;
ENetAddress servdesc_caller;
bool custom_servdesc;
int sispaused = 0;
// current game
string smapname, nextmapname;
int smode, nextgamemode, srvgamesalt;
int interm;
int minremain, gamemillis, gamelimit, nextsendscore;
int arenaround, arenaroundstartmillis;
int lastfillup;
vector<server_entity> sents;
sflaginfo sflaginfos[2];
bool recordpackets;
int demosequence; // # of demo to fetch with F10 (usually curent game, until one minute after it finished)
servermap *curmap;
char *layout; // NULL: edit mode or singleplayer without properly loaded map
uchar *coop_mapdata;
int coop_cgzlen, coop_cfglen, coop_cfglengz;
void init()
{
mastermode = MM_OPEN;
autoteam = true;
matchteamsize = 0;
forceintermission = false;
custom_servdesc = false;
smode = GMODE_TEAMDEATHMATCH;
interm = 0;
minremain = 0;
gamemillis = 0;
gamelimit = 0;
nextsendscore = 0;
arenaround = 0;
arenaroundstartmillis = 0;
lastfillup = 0;
sents.setsize(0);
loopi(2) sflaginfos[i].actor_cn = -1;
recordpackets = false;
demosequence = 0;
curmap = NULL;
layout = NULL;
coop_mapdata = NULL;
coop_cgzlen = coop_cfglen = coop_cfglengz = 0;
}
void free()
{
DELETEA(layout);
DELETEA(coop_mapdata);
}
} cursgame, *sg = &cursgame;
// config
vector<servermap *> servermaps, gamesuggestions; // all available maps kept in memory
string servpubkey;
uchar ssk[64] = { 0 }, *spk = ssk + 32;
enet_uint32 servownip; // IP address of this server, as seen by the master or other clients/servers
servercontroller *svcctrl = NULL;
serverparameter serverparameters;
servercommandline scl;
servermaprot maprot;
serveripblacklist ipblacklist;
serveripcclist geoiplist;
servernickblacklist nickblacklist;
serverforbiddenlist forbiddenlist;
serverpasswords passwords;
serverinfofile serverinfoinfo;
serverinfofile serverinfomotd;
// server state
bool isdedicated = false;
ENetHost *serverhost = NULL;
int laststatus = 0, // last per-minute log status
servmillis = 0, // millis since server start
servclock = 0; // unixtime in minutes
vector<client *> clients;
vector<worldstate *> worldstates;
vector<savedscore> savedscores;
vector<ban> bans;
long int incoming_size = 0;
int shuffleskillthreshold = 200;
//int connectskillthreshold = 0;
// cmod
int totalclients = 0;
int cn2boot;
// synchronising the worker threads...
const char *endis[] = { "disabled", "enabled", "" };
SERVPARLIST(dumpmaprot, 0, 1, 0, endis, "ddump maprot parameters for all maps (once, to logs/debug/maprot_debug_verbose.txt)");
SERVPARLIST(dumpparameters, 0, 0, 0, endis, "ddump server parameters when updated");
//SERVPAR(vitaautosave, 0, 10, 24 * 60, "sVita file autosave interval in minutes (0: only when server is empty)"); // deprecated
SERVPAR(vitamaxage, 3, 12, 120, "sOmit vitas from autosave, if the last login has been more than the specified number of months ago");
//int lastvitasave = 0; // deprecated
bool pushvitasforsaving(bool forceupdate = false)
{
if(isdedicated)
{
if(vitastosave) // only if the last push has been processed
{
return false;
}
else
{
//lastvitasave = servmillis;
vitastosave = new vector<vitakey_s>;
vitakey_s vk;
int too_old = 0;
enumeratekt(vitas, uchar32, k, vita_s, v,
{
if((servclock - v.vs[VS_LASTLOGIN]) / (60 * 24 * 31) <= vitamaxage // Vita is within the max age (months)
|| (v.vs[VS_BAN] == 1 || (servclock - v.vs[VS_BAN]) < 0) // Do not remove if vita has the ban, whitelist, or admin flag set
|| (v.vs[VS_WHITELISTED] == 1 || (servclock - v.vs[VS_WHITELISTED]) < 0)
|| (v.vs[VS_ADMIN] == 1 || (servclock - v.vs[VS_ADMIN]) < 0))
{
vk.k = &k;
vk.v = &v;
vitastosave->add(vk);
}
else too_old++;
});
if(too_old) mlog(ACLOG_VERBOSE, "omitted %d vitas from autosave (exceeding maxage of %d months)", too_old, vitamaxage);
if(forceupdate && readserverconfigsthread_sem) readserverconfigsthread_sem->post();
}
return true;
}
return false;
}
bool triggerpollrestart = false;
void poll_serverthreads() // called once per mainloop-timeslice
{
static vector<servermap *> servermapstodelete;
static int stage = 0, lastworkerthreadstart = 0, nextserverconfig = 0;
static bool debugmaprot = true, serverwasnotempty = false;
switch(stage) // cycle through some tasks once per minute (mostly file polling)
{
default: // start first thread
{
if(startnewservermapsepoch || readmapsthread_sem->getvalue()) fatal("thread management mishap"); // zero tolerance...
// wake readmapsthread
mlog(ACLOG_DEBUG,"waking readmapsthread");
startnewservermapsepoch = true;
servclock = (int) (time(NULL) / (time_t) 60);
readmapsthread_sem->post();
stage = 1;
lastworkerthreadstart = servmillis;
triggerpollrestart = false;
break;
}
case 1: // readmapsthread building/updating the list of maps in memory
{
servermap *fresh = (servermap *) servermapdropbox;
if(fresh)
{
if(fresh == servermapdropbox)
{
// got new servermap...
loopv(servermaps)
{
if(!strcmp(servermaps[i]->fname, fresh->fname)) // we don't check paths here - map filenames have to be unique
{ // found map of same name
mlog(ACLOG_VERBOSE,"marked servermap %s%s for deletion", servermaps[i]->fpath, servermaps[i]->fname);
servermapstodelete.add(servermaps.remove(i)); // mark old version for deletion
}
}
if(fresh->isok)
{
servermaps.add(fresh);
mlog(servmillis>2345?ACLOG_INFO:ACLOG_VERBOSE,"added servermap %s%s", fresh->fpath, fresh->fname); // 1st time only in VERBOSE
maprot.initmap(fresh, NULL);
servermaps.sort(servermapsortname); // keep list sorted at all times
}
else delete fresh;
servermapdropbox = NULL;
}
readmapsthread_sem->post();
}
else if(!startnewservermapsepoch)
{
// readmapsthread is done
if(servmillis<2000)mlog(ACLOG_INFO,"added %d servermaps",servermaps.length());
while(!readmapsthread_sem->trywait())
;
stage++;
}
break;
}
case 2: // wake readserverconfigsthread
{
recheckallserverconfigs = true;
nextserverconfig = 0;
readserverconfigsthread_sem->post();
stage++;
break;
}
case 3: // readserverconfigsthread
{
if(!recheckallserverconfigs)
{
if(serverconfigs.inrange(nextserverconfig))
{
serverconfigs[nextserverconfig]->process(); // processing of config files is done in mainloop, one at a time
nextserverconfig++;
}
else
{
if(vitaupdatebuf)
{
mlog(ACLOG_INFO, "read/updated %d vitas from %s", parsevitas(vitaupdatebuf, vitaupdatebuflen), vitafilename_update_backup);;
DELETEA(vitaupdatebuf);
}
stage++;
}
}
break;
}
case 4: // check for fresh config files
{
if(maprot.updated)
{
maprot.updated = false;
defformatstring(fname)("%sdebug/maprot_debug_verbose.txt", scl.logfilepath);
stream *f = debugmaprot && dumpmaprot ? openfile(path(fname), "w") : NULL;
loopv(servermaps) maprot.initmap(servermaps[i], f); // may stall a few msec if there are very many maps
DELETEP(f);
debugmaprot = false; // only once during server start
}
else if(serverparameters.updated)
{
serverparameters.updated = false;
if(dumpparameters)
{
defformatstring(fname)("%sdebug/serverparameter_dump_%s.txt", scl.logfilepath, numtime());
stream *f = openfile(path(fname), "w");
f->printf("// server parameter dump, %s\n\n", asctimestr());
serverparameters.dump(f);
delete f;
}
}
else if(!vitastosave && serverwasnotempty && numclients() == 0)
{
serverwasnotempty = !pushvitasforsaving(false);
}
else stage++;
break;
}
case 5: // log changed server diagnostics parameters
serverparameters.log();
stage++;
break;
case 6: // pause worker threads for a while (restart once a minute)
{
if(triggerpollrestart || servmillis - lastworkerthreadstart > 60 * 1000) stage = 0;
else if(numclients() == 0)
{ // empty server and nothing to do:
loopvrev(servermapstodelete)
{
gamesuggestions.removeobj(servermapstodelete[i]);
delete servermapstodelete.remove(i); // delete outdated servermaps
}
}
else serverwasnotempty = true;
break;
}
}
// update thread-safe data structures (vectors and hashtables can be read concurrently - but to be updated, they need to be locked)
poll_logbuffers();
}
SERVPAR(gamepenalty_cutoff, 30, 60, 120, "gNumber of minutes to remember that a map+mode combination has been played");
SERVPAR(gamepenalty_random, 1, 1, 60, "gAmount of random weight to add to each map+mode combination");
SERVPAR(mappenalty_cutoff, 45, 60, 240, "gNumber of minutes to remember that a map has been played");
SERVPAR(mappenalty_weight, 0, 100, 200, "gInfluence of play history of a map (0: no influence, 100: normal, 200: high influence)");
SERVPAR(modepenalty_weight, -100, 50, 100, "gInfluence of play history of a game mode (-100: stay with played mode, 0: ignore played mode, 100: suggest other modes)");
void servermaprot::calcmappenalties() // sum up, how long ago each map+mode was played -> get individual penalties for every map+mode combination
{
int modecutoff = gamepenalty_cutoff * 60, mapcutoff = mappenalty_cutoff * 60;
loopv(servermaps)
{
servermap &s = *servermaps[i];
s.mappenalty = 0;
loopi(GMODE_NUM) s.penalty[i] = 0;
loopi(GAMEHISTLEN) if(s.lastplayed[i] && ((1 << s.lastmodes[i]) & s.modes_allowed))
{
int d = (servmillis - s.lastplayed[i]) / 1000, m = s.lastmodes[i];
if(d < modecutoff)
{
s.penalty[m] += ((modecutoff - d + 119) * PENALTYUNIT) / modecutoff; // last minute -> 1 PENALTYUNIT, "cutoff" minutes ago -> 0 PENALTYUNIT, linear inbetween
}
if(d < mapcutoff)
{
s.mappenalty += ((mapcutoff - d + 59) * PENALTYUNIT) / mapcutoff; // last minute -> 1 PENALTYUNIT, "cutoff" minutes ago -> 0 PENALTYUNIT, linear inbetween
}
}
loopi(GMODE_NUM) if((1 << i) & s.modes_allowed)
{
s.penalty[i] = (s.penalty[i] * (100 - s.modes[i].repeat)) / 100;
s.penalty[i] -= s.modes[i].weight * PENALTYUNIT;
s.penalty[i] += rnd(gamepenalty_random * PENALTYUNIT);
}
}
}
servermap *randommap()
{
if(servermaps.length() < 1) fatal("no maps available");
servermap *s = servermaps[rnd(servermaps.length())];
s->bestmode = 0; // tdm
return s;
}
SERVPARLIST(dumpsuggestions, 0, 1, 0, endis, "ddump maprot suggestions whenever recalculated");
servermap *servermaprot::recalcgamesuggestions(int numpl) // regenerate list of playable games (map+mode)
{
calcmodepenalties(modepenalty_weight);
calcmappenalties();
gamesuggestions.setsize(0);
if(numpl >= MAXPLAYERS) numpl = MAXPLAYERS - 1;
loopv(servermaps)
{
servermap &s = *servermaps[i];
s.bestmode = -1;
s.weight = INT_MIN;
int bestpen = INT_MAX;
int modemask = (numpl < 0 ? s.modes_allowed : s.modes_pn[numpl]) & s.modes_auto;
loopi(GMODE_NUM) if(modemask & (1 << i))
{
if((s.penalty[i] + modepenalty[i]) < bestpen)
{
bestpen = s.penalty[i] + modepenalty[i];
s.bestmode = i;
}
}
if(s.bestmode >= 0)
{
s.weight = -bestpen - ((mappenalty_weight + 1) * s.mappenalty) / 100;
gamesuggestions.add(&s);
}
}
gamesuggestions.sort(servermapsortweight);
if(dumpsuggestions)
{
defformatstring(fname)("%sdebug/maprotsuggestions_dump_%s.txt", scl.logfilepath, numtime());
stream *f = openfile(path(fname), "w");
f->printf("// maprot suggestions dump, %s\n\nmode penalties:", asctimestr());
string b;
loopj(GMODE_NUM) if((1 << j) & GMMASK__MPNOCOOP) f->printf(" %s:%d", gmode_enum(1 << j, b), modepenalty[j]);
f->printf("\n\n");
loopv(gamesuggestions)
{
servermap &s = *gamesuggestions[i];
f->printf("map: \"%s%s\", weight: %d, bestmode: %d (%s), mappenalty: %d\n mode penalties:", s.fpath, s.fname, s.weight, s.bestmode, gmode_enum(1 << s.bestmode, b), s.mappenalty);
loopj(GMODE_NUM) if(s.penalty[j]) f->printf(" %s:%d", gmode_enum(1 << j, b), s.penalty[j]);
f->printf("\n\n");
}
delete f;
}
return gamesuggestions.length() ? gamesuggestions[0] : randommap();
}
servermap *getservermap(const char *mapname) // check, if the server knows a map (by filename)
{
servermap *k = new servermap(mapname,""), **res = servermaps.search(&k, servermapsortname);
return res ? *res : NULL;
}
bool valid_client(int cn)
{
return clients.inrange(cn) && clients[cn]->type != ST_EMPTY;
}
void cleanworldstate(ENetPacket *packet)
{
loopv(worldstates)
{
worldstate *ws = worldstates[i];
if(ws->positions.inbuf(packet->data) || ws->messages.inbuf(packet->data)) ws->uses--;
else continue;
if(!ws->uses)
{
delete ws;
worldstates.remove(i);
}
break;
}
}
void sendpacket(int n, int chan, ENetPacket *packet, int exclude, bool demopacket)
{
if(n<0)
{
recordpacket(chan, packet->data, (int)packet->dataLength);
loopv(clients) if(i!=exclude && (clients[i]->type!=ST_TCPIP || clients[i]->isauthed)) sendpacket(i, chan, packet, -1, demopacket);
return;
}
switch(clients[n]->type)
{
case ST_TCPIP:
{
enet_peer_send(clients[n]->peer, chan, packet);
break;
}
case ST_LOCAL:
localservertoclient(chan, packet->data, (int)packet->dataLength, demopacket);
break;
}
}
static bool reliablemessages = false;
bool buildworldstate()
{
static struct { int posoff, poslen, msgoff, msglen; } pkt[MAXCLIENTS];
worldstate &ws = *new worldstate;
loopv(clients)
{
client &c = *clients[i];
if(c.type!=ST_TCPIP || !c.isauthed) continue;
c.overflow = 0;
if(c.position.empty()) pkt[i].posoff = -1;
else
{
pkt[i].posoff = ws.positions.length();
ws.positions.put(c.position.getbuf(), c.position.length());
pkt[i].poslen = ws.positions.length() - pkt[i].posoff;
c.position.setsize(0);
}
if(c.messages.empty()) pkt[i].msgoff = -1;
else
{
pkt[i].msgoff = ws.messages.length();
putint(ws.messages, SV_CLIENT);
putint(ws.messages, c.clientnum);
putuint(ws.messages, c.messages.length());
ws.messages.put(c.messages.getbuf(), c.messages.length());
pkt[i].msglen = ws.messages.length() - pkt[i].msgoff;
c.messages.setsize(0);
}
}
int psize = ws.positions.length(), msize = ws.messages.length();
if(psize)
{
recordpacket(0, ws.positions.getbuf(), psize);
ucharbuf p = ws.positions.reserve(psize);
p.put(ws.positions.getbuf(), psize);
ws.positions.addbuf(p);
}
if(msize)
{
recordpacket(1, ws.messages.getbuf(), msize);
ucharbuf p = ws.messages.reserve(msize);
p.put(ws.messages.getbuf(), msize);
ws.messages.addbuf(p);
}
ws.uses = 0;
loopv(clients)
{
client &c = *clients[i];
if(c.type!=ST_TCPIP || !c.isauthed) continue;
ENetPacket *packet;
if(psize && (pkt[i].posoff<0 || psize-pkt[i].poslen>0))
{
packet = enet_packet_create(&ws.positions[pkt[i].posoff<0 ? 0 : pkt[i].posoff+pkt[i].poslen],
pkt[i].posoff<0 ? psize : psize-pkt[i].poslen,
ENET_PACKET_FLAG_NO_ALLOCATE);
sendpacket(c.clientnum, 0, packet);
if(!packet->referenceCount) enet_packet_destroy(packet);
else { ++ws.uses; packet->freeCallback = cleanworldstate; }
}
if(msize && (pkt[i].msgoff<0 || msize-pkt[i].msglen>0))
{
packet = enet_packet_create(&ws.messages[pkt[i].msgoff<0 ? 0 : pkt[i].msgoff+pkt[i].msglen],
pkt[i].msgoff<0 ? msize : msize-pkt[i].msglen,
(reliablemessages ? ENET_PACKET_FLAG_RELIABLE : 0) | ENET_PACKET_FLAG_NO_ALLOCATE);
sendpacket(c.clientnum, 1, packet);
if(!packet->referenceCount) enet_packet_destroy(packet);
else { ++ws.uses; packet->freeCallback = cleanworldstate; }
}
}
reliablemessages = false;
if(!ws.uses)
{
delete &ws;
return false;
}
else
{
worldstates.add(&ws);
return true;
}
}
client *getclientbysequence(int seq)
{
loopv(clients) if(clients[i]->type != ST_EMPTY && clients[i]->clientsequence == seq) return clients[i];
return NULL;
}
int countclients(int type, bool exclude = false)
{
int num = 0;
loopv(clients) if((clients[i]->type!=type)==exclude) num++;
return num;
}
int numclients() { return countclients(ST_EMPTY, true); }
int numlocalclients() { return countclients(ST_LOCAL); }
int numnonlocalclients() { return countclients(ST_TCPIP); }
int numauthedclients()
{
int num = 0;
loopv(clients) if(clients[i]->type!=ST_EMPTY && clients[i]->isauthed) num++;
return num;
}
int numactiveclients()
{
int num = 0;
loopv(clients) if(clients[i]->type!=ST_EMPTY && clients[i]->isauthed && clients[i]->isonrightmap && team_isactive(clients[i]->team)) num++;
return num;
}
int *numteamclients(int exclude = -1)
{
static int num[TEAM_NUM];
loopi(TEAM_NUM) num[i] = 0;
loopv(clients) if(i != exclude && clients[i]->type!=ST_EMPTY && clients[i]->isauthed && clients[i]->isonrightmap && team_isvalid(clients[i]->team)) num[clients[i]->team]++;
return num;
}
int sendservermode(bool send = true)
{
int sm = (sg->autoteam ? AT_ENABLED : AT_DISABLED) | ((sg->mastermode & MM_MASK) << 2) | (sg->matchteamsize << 4);
if(send) sendf(-1, 1, "ri2", SV_SERVERMODE, sm);
return sm;
}
void changematchteamsize(int newteamsize)
{
if(newteamsize < 0) return;
if(sg->matchteamsize != newteamsize)
{
sg->matchteamsize = newteamsize;
sendservermode();
}
if(sg->mastermode == MM_MATCH && sg->matchteamsize && m_teammode)
{
int size[2] = { 0 };
loopv(clients) if(clients[i]->type!=ST_EMPTY && clients[i]->isauthed && clients[i]->isonrightmap)
{
if(team_isactive(clients[i]->team))
{
if(++size[clients[i]->team] > sg->matchteamsize) updateclientteam(i, team_tospec(clients[i]->team), FTR_SILENTFORCE);
}
}
}
}
void changemastermode(int newmode)
{
if(sg->mastermode != newmode)
{
sg->mastermode = newmode;
senddisconnectedscores(-1);
if(sg->mastermode != MM_MATCH)
{
loopv(clients) if(clients[i]->type!=ST_EMPTY && clients[i]->isauthed)
{
if(clients[i]->team == TEAM_CLA_SPECT || clients[i]->team == TEAM_RVSF_SPECT) updateclientteam(i, TEAM_SPECT, FTR_SILENTFORCE);
}
}
else if(sg->matchteamsize) changematchteamsize(sg->matchteamsize);
sendservermode();
}
}
void setpausemode(int newmode)
{
if (sg->sispaused != newmode) {
sg->sispaused = newmode;
}
loopv(clients) if (clients[i]->type != ST_EMPTY)
{
if (!valid_client(i)) return;
clients[i]->ispaused = newmode;
}
sendf(-1, 1, "ri2", SV_PAUSEMODE, newmode);
}
int findcnbyaddress(ENetAddress *address)
{
loopv(clients)
{
if(clients[i]->type == ST_TCPIP && clients[i]->peer->address.host == address->host && clients[i]->peer->address.port == address->port)
return i;
}
return -1;
}
savedscore *findscore(client &c, bool insert)
{
if(c.type!=ST_TCPIP) return NULL;
enet_uint32 mask = ENET_HOST_TO_NET_32(sg->mastermode == MM_MATCH ? 0xFFFF0000 : 0xFFFFFFFF); // in match mode, reconnecting from /16 subnet is allowed
if(!insert)
{
loopv(clients)
{
client &o = *clients[i];
if(o.type!=ST_TCPIP || !o.isauthed) continue;
if(o.clientnum!=c.clientnum && o.peer->address.host==c.peer->address.host && !strcmp(o.name, c.name))
{
static savedscore curscore;
curscore.save(o.state, o.team);
return &curscore;
}
}
}
loopv(savedscores)
{
savedscore &sc = savedscores[i];
if(!strcmp(sc.name, c.name) && (sc.ip & mask) == (c.peer->address.host & mask)) return ≻
}
if(!insert) return NULL;
savedscore &sc = savedscores.add();
copystring(sc.name, c.name);
sc.ip = c.peer->address.host;
return ≻
}
void sendf(int cn, int chan, const char *format, ...)
{
int exclude = -1;
bool reliable = false;
if(*format=='r') { reliable = true; ++format; }
packetbuf p(MAXTRANS, reliable ? ENET_PACKET_FLAG_RELIABLE : 0);
va_list args;
va_start(args, format);
while(*format) switch(*format++)
{
case 'x': // exclude client from getting this message
exclude = va_arg(args, int);
ASSERT(cn == -1);
break;
case 'v': // integer array of variable length
{
int n = va_arg(args, int);
int *v = va_arg(args, int *);
loopi(n) putint(p, v[i]);
break;
}
case 'k': // 32 bytes (uchar)
p.put(va_arg(args, uchar *), 32);
break;
case 'i': // one to nine integer arguments
{
int n = isdigit(*format) ? *format++-'0' : 1;
loopi(n) putint(p, va_arg(args, int));
break;
}
case 'a': // one to nine mostly positive integer arguments
{
int n = isdigit(*format) ? *format++-'0' : 1;
loopi(n) putaint(p, va_arg(args, int));
break;
}
case 'u': // unsigned integer argument
putuint(p, va_arg(args, int));
break;
case 'I': // IPv4 address argument
putip4(p, va_arg(args, enet_uint32));
break;
case 's': // string
sendstring(va_arg(args, const char *), p);
break;
case 'm': // raw message block
{
int n = va_arg(args, int);
p.put(va_arg(args, uchar *), n);
break;
}
}
va_end(args);
sendpacket(cn, chan, p.finalize(), exclude);
}
void sendservmsg(const char *msg, int cn = -1)
{
sendf(cn, 1, "ris", SV_SERVMSG, msg);
}
void sendservmsgverbose(const char *msg, int cn = -1) // channel server spam here...
{
sendf(cn, 1, "ris", SV_SERVMSGVERB, msg);
}
void sendspawn(client *c)
{
if(team_isspect(c->team)) return;
clientstate &gs = c->state;
gs.respawn();
gs.spawnstate(sg->smode);
gs.lifesequence++;
sendf(c->clientnum, 1, "ri7vv", SV_SPAWNSTATE, gs.lifesequence,
gs.health, gs.armour,
gs.primary, gs.gunselect, m_arena ? c->spawnindex : -1,
NUMGUNS, gs.ammo, NUMGUNS, gs.mag);
gs.lastspawn = sg->gamemillis;
}
// simultaneous demo recording, fully buffered
#define DEMORINGBUFSIZE (1<<18) // 256KB
#define MAXDEMOS 24
SERVPAR(demo_max_number, 5, 7, MAXDEMOS - 1, "DMaximum number of demo files in RAM");
SERVPARLIST(demo_save, 0, 1, 0, endis, "DWrite demos to file");
SERVSTR(demo_path, "", 0, 63, FTXT__DEMONAME, "DDemo path (and filename) prefix");
SERVSTR(demo_filenameformat, "%w_%h_%n_%Mmin_%G", 0, 63, FTXT__FORMATSTRING, "DDemo file format string");
SERVSTR(demo_timestampformat, "%Y%m%d_%H%M", 0, 23, FTXT__FORMATSTRING, "DDemo timestamp format string");
SERVPARLIST(demo_debug, 0, 1, 0, endis, "DExcessive logging during demo recording (FIXME)");
typedef ringbuf<uchar, DEMORINGBUFSIZE> demoringbuf;
typedef vector<uchar> demobuf;
ringbuf<demoringbuf *, MAXDEMOS> demoringbuf_store;
ringbuf<demobuf *, MAXDEMOS> demobuf_store;
struct demo_s
{
volatile int sequence;
string info, mapname, filename;
vector<int> clients_waiting, clients_served;
demoringbuf *rb; // uncomressed ringbuffer
stream *gz, *dbs; // compression handle
demobuf *db; // temp compressed file
uchar *data; // finished compressed file
int len; // bytes in data
int gmode, timeplayed, timeremain, timestamp;
uchar tiger[TIGERHASHSIZE]; // raw data checksum
void *tigerstate;
// flags only valid for sequence > 0
bool finish; // game ended, finish up buffer and copy to 'data'
bool error; // buffering overflow, demo lost -> double DEMORINGBUFSIZE and recompile
bool remove; // cleanup slot
bool done; // demo ready to be downloaded
bool save; // write demo to file
demo_s() : sequence(0), rb(NULL), gz(NULL), db(NULL), data(NULL), tigerstate(NULL) {}
};
demo_s demos[MAXDEMOS];
demo_s *initdemoslot() // fetch empty demo slot, clean up surplus slots
{
static int demosequencecounter = 0, lastdemoslot = 0;
const int demosequencewraparound = max(126, MAXDEMOS * 4);
ASSERT(ismainthread() && MAXDEMOS < 126);
for(;;)
{
int used = 0;
loopi(MAXDEMOS) if(demos[i].sequence) used++;
if(used >= demo_max_number)
{ // drop old demos (oldest sequence counters first)
int oldestage = -1, oldestdemo;
loopi(MAXDEMOS) if(demos[i].sequence)
{
int age = (demosequencecounter - demos[i].sequence + demosequencewraparound) % demosequencewraparound;
if(age > oldestage)
{
oldestage = age;
oldestdemo = i;
}
}
if(oldestage >= 0)
{
demo_s &c = demos[oldestdemo];
mlog(ACLOG_VERBOSE, "dropping demo #%d \"%s\", age %d", c.sequence, c.info, oldestage);
if(!c.done) mlog(ACLOG_ERROR, "clearing unfinished demo slot #%d, probably leaked some memory...", c.sequence);
else DELETEA(c.data);
c.rb = NULL;
c.db = NULL;
c.data = NULL;
c.tigerstate = NULL;
c.gz = c.dbs = NULL;
c.sequence = 0;
}
}
else break;
}
demo_s *d = NULL;
int n;
loopi(MAXDEMOS) if(!demos[(n = (i + lastdemoslot) % MAXDEMOS)].sequence) { d = demos + n; lastdemoslot = n + 1; break; }
ASSERT(d != NULL);
d->clients_waiting.setsize(0);
d->clients_served.setsize(0);
d->rb = demoringbuf_store.length() ? demoringbuf_store.remove() : new demoringbuf;
d->db = demobuf_store.length() ? demobuf_store.remove() : new demobuf;
DELETEA(d->data);
d->rb->clear();
d->db->setsize(0);
d->len = 0;
d->tigerstate = tigerhash_init(d->tiger);
d->dbs = openvecfile(d->db, false); // no autodelete: we'll keep db allocated
d->gz = opengzfile(NULL, "wb", d->dbs);
d->remove = d->finish = d->error = d->done = false;
for(bool tryagain = true; tryagain; )
{ // get unique sequence number (brute force)
demosequencecounter = (d->sequence = (demosequencecounter + 1)) % demosequencewraparound;
tryagain = false;
loopi(MAXDEMOS) if(demos[i].sequence == d->sequence && demos + i != d) tryagain = true;
}
if(demo_debug) mlog(ACLOG_INFO, "initdemoslot(): use slot %d, sequence #%d", n, d->sequence);
return d;
}
sl_semaphore sem_demoworkerthread(1, NULL); // trigger demoworkerthread
int demoworkerthread(void *logfileprefix) // demo worker thread: compress demo data and write demo files
{
int len;
while(1)
{
loopi(MAXDEMOS) if(demos[i].sequence)
{
demo_s &s = demos[i];
while(s.gz && s.rb && (len = s.rb->length()))
{ // compress until rb is empty
uchar *rbp = s.rb->peek(&len);
if(len != s.gz->write(rbp, len)) s.error = true;
s.rb->remove(&len);
}
if(s.finish && s.gz && s.rb && !s.rb->length())
{ // close and copy zip file
if(demo_debug) tlog(ACLOG_INFO, "demoworkerthread(): close slot %d, sequence #%d", i, s.sequence);
tigerhash_finish(s.tiger, s.tigerstate);
s.tigerstate = NULL;
string msg;
bin2hex(msg, s.tiger, TIGERHASHSIZE);
defformatstring(text)("SERVDEMOEND<%s>", msg);
ed25519_sign((uchar*)msg, NULL, (uchar*)text, strlen(text), ssk);
int stamp[3] = { -1, -1, TIGERHASHSIZE + 64 };
lilswap(stamp, 3);
s.gz->write(stamp, sizeof(stamp));
s.gz->write(s.tiger, TIGERHASHSIZE);
s.gz->write(msg, 64);
DELETEP(s.gz);
s.len = s.dbs->size();
s.data = new uchar[s.len];
s.dbs->seek(0, SEEK_SET);
s.dbs->read(s.data, s.len);
if(s.save)
{
stream *demo = openfile(s.filename, "wb");
if(demo)
{
int wlen = (int) demo->write(s.data, s.len);
delete demo;
tlog(ACLOG_INFO, "demo #%d written to file \"%s\" (%d bytes)", s.sequence, s.filename, wlen);
}
else
{
tlog(ACLOG_INFO, "failed to write demo #%d to file \"%s\"", s.sequence, s.filename);
}
}
else tlog(ACLOG_INFO, "recording demo #%d \"%s\" (%d bytes) finished, not saved to file", s.sequence, s.filename, s.len);
s.done = true;
}
if(s.finish || s.error || s.remove)
{ // cleanup demo slot
if(demo_debug) tlog(ACLOG_INFO, "demoworkerthread(): cleanup slot %d, sequence #%d", i, s.sequence);
if(s.error || s.remove) s.done = false;
DELETEP(s.gz);
DELETEP(s.dbs);
if(s.db)
{ // keep the demo buffer for the next recording
if(!demobuf_store.full()) demobuf_store.add(s.db);
else delete s.db;
s.db = NULL;
}
if(s.rb)
{ // keep the demo ringbuffer for the next recording
if(!demoringbuf_store.full()) demoringbuf_store.add(s.rb);
else delete s.rb;
s.rb = NULL;
}
s.finish = s.error = s.remove = false;
if(!s.done) s.sequence = 0;
}
}
sem_demoworkerthread.timedwait(500); // wait for mainloop to add some work
}
return 0;
}
demo_s *demorecord = NULL;
void writedemo(int chan, void *data, int len)
{
if(demorecord && !demorecord->sequence) demorecord = NULL;
if(!demorecord || !demorecord->rb) return;
int stamp[3] = { sg->gamemillis, chan, len };
if(demorecord->rb->maxsize() - demorecord->rb->length() > int(sizeof(stamp)) + len)
{
lilswap(stamp, 3);
demorecord->rb->add((uchar *)stamp, sizeof(stamp));
tigerhash_add(demorecord->tiger, (uchar *)stamp, sizeof(stamp), demorecord->tigerstate);
demorecord->rb->add((uchar *)data, len);
tigerhash_add(demorecord->tiger, (uchar *)data, len, demorecord->tigerstate);
sem_demoworkerthread.post();
}
else
{
if(!demorecord->error) mlog(ACLOG_ERROR, "demorecord ringbuffer overflow -> discarding demo #%d", demorecord->sequence);
demorecord->error = true; // ringbuffer-overflow: discard demo
}
}
void recordpacket(int chan, void *data, int len)
{
if(sg->recordpackets) writedemo(chan, data, len);
}
void recordpacket(int chan, ENetPacket *packet)
{
if(sg->recordpackets) writedemo(chan, packet->data, (int)packet->dataLength);
}
void demorecord_beginintermission()
{ // send hash to clients to sign and restart demo hash
if(!demorecord) return;
uchar interm_tiger[TIGERHASHSIZE];
tigerhash_finish(demorecord->tiger, demorecord->tigerstate);
memcpy(interm_tiger, demorecord->tiger, TIGERHASHSIZE);
demorecord->tigerstate = tigerhash_init(demorecord->tiger); // start again to hash the rest of the demo
if(demo_debug) mlog(ACLOG_INFO, "demorecord_beginintermission(): sequence #%d", demorecord->sequence);
sendf(-1, 1, "rim", SV_DEMOCHECKSUM, TIGERHASHSIZE, interm_tiger);
}
void enddemorecord()
{
if(!demorecord) return;
sg->recordpackets = false;