/* sv_user.c server code for moving users Copyright (C) 1996-1997 Id Software, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to: Free Software Foundation, Inc. 59 Temple Place - Suite 330 Boston, MA 02111-1307, USA */ static const char rcsid[] = "$Id$"; #ifdef HAVE_CONFIG_H # include "config.h" #endif #ifdef HAVE_STRING_H # include #endif #ifdef HAVE_STRINGS_H # include #endif #include #include #include #include #include "QF/checksum.h" #include "QF/clip_hull.h" #include "QF/cmd.h" #include "QF/cvar.h" #include "QF/msg.h" #include "QF/sys.h" #include "QF/va.h" #include "QF/vfs.h" #include "compat.h" #include "bothdefs.h" #include "msg_ucmd.h" #include "pmove.h" #include "server.h" #include "sv_progs.h" #include "world.h" edict_t *sv_player; usercmd_t cmd; cvar_t *cl_rollspeed; cvar_t *cl_rollangle; cvar_t *sv_spectalk; cvar_t *sv_mapcheck; cvar_t *sv_timekick; cvar_t *sv_timekick_fuzz; cvar_t *sv_timekick_interval; cvar_t *sv_kickfake; void SV_FullClientUpdateToClient (client_t *client, client_t *cl); /* USER STRINGCMD EXECUTION host_client and sv_player will be valid. */ /* SV_New_f Sends the first message from the server to a connected client. This will be sent on the initial connection and upon each server load. */ void SV_New_f (void) { const char *gamedir; int playernum; if (host_client->state == cs_spawned) return; host_client->state = cs_connected; host_client->connection_started = realtime; // send the info about the new client to all connected clients // SV_FullClientUpdate (host_client, &sv.reliable_datagram); // host_client->sendinfo = true; gamedir = Info_ValueForKey (svs.info, "*gamedir"); if (!gamedir[0]) gamedir = "qw"; //NOTE: This doesn't go through ClientReliableWrite since it's before the user //spawns. These functions are written to not overflow if (host_client->num_backbuf) { SV_Printf ("WARNING %s: [SV_New] Back buffered (%d0, clearing\n", host_client->name, host_client->netchan.message.cursize); host_client->num_backbuf = 0; SZ_Clear (&host_client->netchan.message); } // send the serverdata MSG_WriteByte (&host_client->netchan.message, svc_serverdata); MSG_WriteLong (&host_client->netchan.message, PROTOCOL_VERSION); MSG_WriteLong (&host_client->netchan.message, svs.spawncount); MSG_WriteString (&host_client->netchan.message, gamedir); playernum = NUM_FOR_EDICT (&sv_pr_state, host_client->edict) - 1; if (host_client->spectator) playernum |= 128; MSG_WriteByte (&host_client->netchan.message, playernum); // send full levelname MSG_WriteString (&host_client->netchan.message, PR_GetString (&sv_pr_state, SVstring (sv.edicts, message))); // send the movevars MSG_WriteFloat (&host_client->netchan.message, movevars.gravity); MSG_WriteFloat (&host_client->netchan.message, movevars.stopspeed); MSG_WriteFloat (&host_client->netchan.message, movevars.maxspeed); MSG_WriteFloat (&host_client->netchan.message, movevars.spectatormaxspeed); MSG_WriteFloat (&host_client->netchan.message, movevars.accelerate); MSG_WriteFloat (&host_client->netchan.message, movevars.airaccelerate); MSG_WriteFloat (&host_client->netchan.message, movevars.wateraccelerate); MSG_WriteFloat (&host_client->netchan.message, movevars.friction); MSG_WriteFloat (&host_client->netchan.message, movevars.waterfriction); MSG_WriteFloat (&host_client->netchan.message, movevars.entgravity); // send music MSG_WriteByte (&host_client->netchan.message, svc_cdtrack); MSG_WriteByte (&host_client->netchan.message, SVfloat (sv.edicts, sounds)); // send server info string MSG_WriteByte (&host_client->netchan.message, svc_stufftext); MSG_WriteString (&host_client->netchan.message, va ("fullserverinfo \"%s\"\n", Info_MakeString (svs.info, 0))); } /* SV_Soundlist_f */ void SV_Soundlist_f (void) { const char **s; unsigned n; if (host_client->state != cs_connected) { SV_Printf ("soundlist not valid -- already spawned\n"); return; } // handle the case of a level changing while a client was connecting if (atoi (Cmd_Argv (1)) != svs.spawncount) { SV_Printf ("SV_Soundlist_f from different level\n"); SV_New_f (); return; } n = atoi (Cmd_Argv (2)); if (n >= MAX_SOUNDS) { SV_Printf ("SV_Soundlist_f: Invalid soundlist index\n"); SV_New_f (); return; } //NOTE: This doesn't go through ClientReliableWrite since it's before the user //spawns. These functions are written to not overflow if (host_client->num_backbuf) { SV_Printf ("WARNING %s: [SV_Soundlist] Back buffered (%d0, clearing", host_client->name, host_client->netchan.message.cursize); host_client->num_backbuf = 0; SZ_Clear (&host_client->netchan.message); } MSG_WriteByte (&host_client->netchan.message, svc_soundlist); MSG_WriteByte (&host_client->netchan.message, n); for (s = sv.sound_precache + 1 + n; *s && host_client->netchan.message.cursize < (MAX_MSGLEN / 2); s++, n++) MSG_WriteString (&host_client->netchan.message, *s); MSG_WriteByte (&host_client->netchan.message, 0); // next msg if (*s) MSG_WriteByte (&host_client->netchan.message, n); else MSG_WriteByte (&host_client->netchan.message, 0); } /* SV_Modellist_f */ void SV_Modellist_f (void) { const char **s; unsigned n; if (host_client->state != cs_connected) { SV_Printf ("modellist not valid -- already spawned\n"); return; } // handle the case of a level changing while a client was connecting if (atoi (Cmd_Argv (1)) != svs.spawncount) { SV_Printf ("SV_Modellist_f from different level\n"); SV_New_f (); return; } n = atoi (Cmd_Argv (2)); if (n >= MAX_MODELS) { SV_Printf ("SV_Modellist_f: Invalid modellist index\n"); SV_New_f (); return; } //NOTE: This doesn't go through ClientReliableWrite since it's before the user //spawns. These functions are written to not overflow if (host_client->num_backbuf) { SV_Printf ("WARNING %s: [SV_Modellist] Back buffered (%d0, clearing", host_client->name, host_client->netchan.message.cursize); host_client->num_backbuf = 0; SZ_Clear (&host_client->netchan.message); } MSG_WriteByte (&host_client->netchan.message, svc_modellist); MSG_WriteByte (&host_client->netchan.message, n); for (s = sv.model_precache + 1 + n; *s && host_client->netchan.message.cursize < (MAX_MSGLEN / 2); s++, n++) MSG_WriteString (&host_client->netchan.message, *s); MSG_WriteByte (&host_client->netchan.message, 0); // next msg if (*s) MSG_WriteByte (&host_client->netchan.message, n); else MSG_WriteByte (&host_client->netchan.message, 0); } /* SV_PreSpawn_f */ void SV_PreSpawn_f (void) { unsigned int buf; unsigned int check; sizebuf_t *msg; char *command; int size; if (host_client->state != cs_connected) { SV_Printf ("prespawn not valid -- already spawned\n"); return; } // handle the case of a level changing while a client was connecting if (atoi (Cmd_Argv (1)) != svs.spawncount) { SV_Printf ("SV_PreSpawn_f from different level\n"); SV_New_f (); return; } buf = atoi (Cmd_Argv (2)); if (buf >= sv.num_signon_buffers) buf = 0; if (!buf) { // should be three numbers following containing checksums check = atoi (Cmd_Argv (3)); // Con_DPrintf("Client check = %d\n", check); if (sv_mapcheck->int_val && check != sv.worldmodel->checksum && check != sv.worldmodel->checksum2) { SV_ClientPrintf (host_client, PRINT_HIGH, "Map model file does not match (%s), %i != %i/%i.\n" "You may need a new version of the map, or the proper install files.\n", sv.modelname, check, sv.worldmodel->checksum, sv.worldmodel->checksum2); SV_DropClient (host_client); return; } host_client->checksum = check; } host_client->prespawned = true; if (buf == sv.num_signon_buffers - 1) command = va ("cmd spawn %i 0\n", svs.spawncount); else command = va ("cmd prespawn %i %i\n", svs.spawncount, buf + 1); size = sv.signon_buffer_size[buf] + 1 + strlen(command) + 1; ClientReliableCheckBlock (host_client, size); if (host_client->num_backbuf) msg = &host_client->backbuf; else msg = &host_client->netchan.message; SZ_Write (msg, sv.signon_buffers[buf], sv.signon_buffer_size[buf]); MSG_WriteByte (msg, svc_stufftext); MSG_WriteString (msg, command); } /* SV_Spawn_f */ void SV_Spawn_f (void) { int i; client_t *client; edict_t *ent; int n; if (host_client->state != cs_connected) { SV_Printf ("Spawn not valid -- already spawned\n"); return; } // handle the case of a level changing while a client was connecting if (atoi (Cmd_Argv (1)) != svs.spawncount) { SV_Printf ("SV_Spawn_f from different level\n"); SV_New_f (); return; } // make sure they're not trying to cheat by spawning without prespawning if (host_client->prespawned == false) { SV_BroadcastPrintf (PRINT_HIGH, "%s has been kicked for trying to spawn before prespawning!\n", host_client->name); SV_DropClient (host_client); return; } n = atoi (Cmd_Argv (2)); // make sure n is valid if (n < 0 || n > MAX_CLIENTS) { SV_Printf ("SV_Spawn_f invalid client start\n"); SV_New_f (); return; } host_client->spawned = true; // send all current names, colors, and frag counts // FIXME: is this a good thing? SZ_Clear (&host_client->netchan.message); // send current status of all other players // normally this could overflow, but no need to check due to backbuf for (i = n, client = svs.clients + n; i < MAX_CLIENTS; i++, client++) SV_FullClientUpdateToClient (client, host_client); // send all current light styles for (i = 0; i < MAX_LIGHTSTYLES; i++) { ClientReliableWrite_Begin (host_client, svc_lightstyle, 3 + (sv. lightstyles[i] ? strlen (sv. lightstyles[i]) : 1)); ClientReliableWrite_Byte (host_client, (char) i); ClientReliableWrite_String (host_client, sv.lightstyles[i]); } // set up the edict ent = host_client->edict; memset (&ent->v, 0, sv_pr_state.progs->entityfields * 4); SVfloat (ent, colormap) = NUM_FOR_EDICT (&sv_pr_state, ent); SVfloat (ent, team) = 0; // FIXME SVstring (ent, netname) = PR_SetString (&sv_pr_state, host_client->name); host_client->entgravity = 1.0; if (sv_fields.gravity != -1) SVfloat (ent, gravity) = 1.0; host_client->maxspeed = sv_maxspeed->value; if (sv_fields.maxspeed != -1) SVfloat (ent, maxspeed) = sv_maxspeed->value; // // force stats to be updated // memset (host_client->stats, 0, sizeof (host_client->stats)); ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6); ClientReliableWrite_Byte (host_client, STAT_TOTALSECRETS); ClientReliableWrite_Long (host_client, *sv_globals.total_secrets); ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6); ClientReliableWrite_Byte (host_client, STAT_TOTALMONSTERS); ClientReliableWrite_Long (host_client, *sv_globals.total_monsters); ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6); ClientReliableWrite_Byte (host_client, STAT_SECRETS); ClientReliableWrite_Long (host_client, *sv_globals.found_secrets); ClientReliableWrite_Begin (host_client, svc_updatestatlong, 6); ClientReliableWrite_Byte (host_client, STAT_MONSTERS); ClientReliableWrite_Long (host_client, *sv_globals.killed_monsters); // get the client to check and download skins // when that is completed, a begin command will be issued ClientReliableWrite_Begin (host_client, svc_stufftext, 8); ClientReliableWrite_String (host_client, "skins\n"); } /* SV_SpawnSpectator */ void SV_SpawnSpectator (void) { int i; edict_t *e; VectorCopy (vec3_origin, SVvector (sv_player, origin)); VectorCopy (vec3_origin, SVvector (sv_player, view_ofs)); SVvector (sv_player, view_ofs)[2] = 22; // search for an info_playerstart to spawn the spectator at for (i = MAX_CLIENTS - 1; i < sv.num_edicts; i++) { e = EDICT_NUM (&sv_pr_state, i); if (!strcmp (PR_GetString (&sv_pr_state, SVstring (e, classname)), "info_player_start")) { VectorCopy (SVvector (e, origin), SVvector (sv_player, origin)); return; } } } /* SV_Begin_f */ void SV_Begin_f (void) { unsigned int pmodel = 0, emodel = 0; int i; if (host_client->state == cs_spawned) return; // don't begin again host_client->state = cs_spawned; // handle the case of a level changing while a client was connecting if (atoi (Cmd_Argv (1)) != svs.spawncount) { SV_Printf ("SV_Begin_f from different level\n"); SV_New_f (); return; } // make sure they're not trying to cheat by beginning without spawning if (host_client->spawned == false) { SV_BroadcastPrintf (PRINT_HIGH, "%s has been kicked for trying to begin before spawning!\n" "Have a nice day!\n", // 1 string! host_client->name); SV_DropClient (host_client); return; } if (host_client->spectator) { SV_SpawnSpectator (); if (SpectatorConnect) { // copy spawn parms out of the client_t for (i = 0; i < NUM_SPAWN_PARMS; i++) sv_globals.parms[i] = host_client->spawn_parms[i]; // call the spawn function *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, SpectatorConnect); } } else { // copy spawn parms out of the client_t for (i = 0; i < NUM_SPAWN_PARMS; i++) sv_globals.parms[i] = host_client->spawn_parms[i]; // call the spawn function *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientConnect); // actually spawn the player *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, sv_funcs.PutClientInServer); } // clear the net statistics, because connecting gives a bogus picture host_client->last_check = -1; host_client->netchan.frame_latency = 0; host_client->netchan.frame_rate = 0; host_client->netchan.drop_count = 0; host_client->netchan.good_count = 0; // check he's not cheating pmodel = atoi (Info_ValueForKey (host_client->userinfo, "pmodel")); emodel = atoi (Info_ValueForKey (host_client->userinfo, "emodel")); if (pmodel != sv.model_player_checksum || emodel != sv.eyes_player_checksum) SV_BroadcastPrintf (PRINT_HIGH, "%s WARNING: non standard player/eyes model detected\n", host_client->name); // if we are paused, tell the client if (sv.paused) { ClientReliableWrite_Begin (host_client, svc_setpause, 2); ClientReliableWrite_Byte (host_client, sv.paused); SV_ClientPrintf (host_client, PRINT_HIGH, "Server is paused.\n"); } #if 0 // // send a fixangle over the reliable channel to make sure it gets there // Never send a roll angle, because savegames can catch the server // in a state where it is expecting the client to correct the angle // and it won't happen if the game was just loaded, so you wind up // with a permanent head tilt ent = EDICT_NUM (&sv_pr_state, 1 + (host_client - svs.clients)); MSG_WriteByte (&host_client->netchan.message, svc_setangle); for (i = 0; i < 2; i++) MSG_WriteAngle (&host_client->netchan.message, SVvector (ent, angles)[i]); MSG_WriteAngle (&host_client->netchan.message, 0); #endif } //============================================================================= /* SV_NextDownload_f */ void SV_NextDownload_f (void) { byte buffer[1024]; int r; int percent; int size; if (!host_client->download) return; r = host_client->downloadsize - host_client->downloadcount; if (r > 768) r = 768; r = Qread (host_client->download, buffer, r); ClientReliableWrite_Begin (host_client, svc_download, 6 + r); ClientReliableWrite_Short (host_client, r); host_client->downloadcount += r; size = host_client->downloadsize; if (!size) size = 1; percent = host_client->downloadcount * 100 / size; ClientReliableWrite_Byte (host_client, percent); ClientReliableWrite_SZ (host_client, buffer, r); if (host_client->downloadcount != host_client->downloadsize) return; Qclose (host_client->download); host_client->download = NULL; } void OutofBandPrintf (netadr_t where, char *fmt, ...) { va_list argptr; char send[1024]; send[0] = 0xff; send[1] = 0xff; send[2] = 0xff; send[3] = 0xff; send[4] = A2C_PRINT; va_start (argptr, fmt); vsnprintf (send + 5, sizeof (send - 5), fmt, argptr); va_end (argptr); NET_SendPacket (strlen (send) + 1, send, where); } /* SV_NextUpload */ void SV_NextUpload (void) { int percent; int size; if (!*host_client->uploadfn) { SV_ClientPrintf (host_client, PRINT_HIGH, "Upload denied\n"); ClientReliableWrite_Begin (host_client, svc_stufftext, 8); ClientReliableWrite_String (host_client, "stopul"); // suck out rest of packet size = MSG_ReadShort (net_message); MSG_ReadByte (net_message); net_message->readcount += size; return; } size = MSG_ReadShort (net_message); percent = MSG_ReadByte (net_message); if (!host_client->upload) { host_client->upload = Qopen (host_client->uploadfn, "wb"); if (!host_client->upload) { SV_Printf ("Can't create %s\n", host_client->uploadfn); ClientReliableWrite_Begin (host_client, svc_stufftext, 8); ClientReliableWrite_String (host_client, "stopul"); *host_client->uploadfn = 0; return; } SV_Printf ("Receiving %s from %d...\n", host_client->uploadfn, host_client->userid); if (host_client->remote_snap) OutofBandPrintf (host_client->snap_from, "Server receiving %s from %d...\n", host_client->uploadfn, host_client->userid); } Qwrite (host_client->upload, net_message->message->data + net_message->readcount, size); net_message->readcount += size; Con_DPrintf ("UPLOAD: %d received\n", size); if (percent != 100) { ClientReliableWrite_Begin (host_client, svc_stufftext, 8); ClientReliableWrite_String (host_client, "nextul\n"); } else { Qclose (host_client->upload); host_client->upload = NULL; SV_Printf ("%s upload completed.\n", host_client->uploadfn); if (host_client->remote_snap) { char *p; if ((p = strchr (host_client->uploadfn, '/')) != NULL) p++; else p = host_client->uploadfn; OutofBandPrintf (host_client->snap_from, "%s upload completed.\nTo download, enter:\ndownload %s\n", host_client->uploadfn, p); } } } /* SV_BeginDownload_f */ void SV_BeginDownload_f (void) { const char *name; VFile *file; int size; char realname[MAX_OSPATH]; int zip; name = Cmd_Argv (1); // hacked by zoid to allow more conrol over download // first off, no .. or global allow check if (strstr (name, "..") || !allow_download->int_val // leading dot is no good || *name == '.' // next up, skin check || (strncmp (name, "skins/", 6) == 0 && !allow_download_skins->int_val) // now models || (strncmp (name, "progs/", 6) == 0 && !allow_download_models->int_val) // now sounds || (strncmp (name, "sound/", 6) == 0 && !allow_download_sounds->int_val) // now maps (note special case for maps, must not be in pak) || (strncmp (name, "maps/", 5) == 0 && !allow_download_maps->int_val) // MUST be in a subdirectory || !strstr (name, "/")) { // don't allow anything with .. path ClientReliableWrite_Begin (host_client, svc_download, 4); ClientReliableWrite_Short (host_client, -1); ClientReliableWrite_Byte (host_client, 0); return; } if (host_client->download) { Qclose (host_client->download); host_client->download = NULL; } // lowercase name (needed for casesen file systems) { char *p = Hunk_TempAlloc (strlen (name) + 1); char *n = p; while (*name) *p++ = tolower ((int) *name++); *p = 0; name = n; } zip = strchr (Info_ValueForKey (host_client->userinfo, "*cap"), 'z') != 0; size = _COM_FOpenFile (name, &file, realname, !zip); host_client->download = file; host_client->downloadsize = size; host_client->downloadcount = 0; if (!host_client->download // special check for maps, if it came from a pak file, don't allow // download ZOID || (strncmp (name, "maps/", 5) == 0 && file_from_pak)) { if (host_client->download) { Qclose (host_client->download); host_client->download = NULL; } SV_Printf ("Couldn't download %s to %s\n", name, host_client->name); ClientReliableWrite_Begin (host_client, svc_download, 4); ClientReliableWrite_Short (host_client, -1); ClientReliableWrite_Byte (host_client, 0); return; } if (zip && strcmp (realname, name)) { SV_Printf ("download renamed to %s\n", realname); ClientReliableWrite_Begin (host_client, svc_download, strlen (realname) + 5); ClientReliableWrite_Short (host_client, -2); ClientReliableWrite_Byte (host_client, 0); ClientReliableWrite_String (host_client, realname); ClientReliable_FinishWrite (host_client); } SV_NextDownload_f (); SV_Printf ("Downloading %s to %s\n", name, host_client->name); } //============================================================================= /* SV_Say */ void SV_Say (qboolean team) { client_t *client; int j, tmp; char *p; char text[2048]; char t1[32]; const char *t2; char *i; if (Cmd_Argc () < 2) return; if (team) { strncpy (t1, Info_ValueForKey (host_client->userinfo, "team"), 31); t1[31] = 0; } if (host_client->spectator && (!sv_spectalk->int_val || team)) snprintf (text, sizeof (text), "[SPEC] %s: ", host_client->name); else if (team) snprintf (text, sizeof (text), "(%s): ", host_client->name); else { snprintf (text, sizeof (text), "%s: ", host_client->name); } if (fp_messages) { if (!sv.paused && realtime < host_client->lockedtill) { SV_ClientPrintf (host_client, PRINT_CHAT, "You can't talk for %d more seconds\n", (int) (host_client->lockedtill - realtime)); return; } tmp = host_client->whensaidhead - fp_messages + 1; if (tmp < 0) tmp = 10 + tmp; if (!sv.paused && host_client->whensaid[tmp] && (realtime - host_client->whensaid[tmp] < fp_persecond)) { host_client->lockedtill = realtime + fp_secondsdead; if (fp_msg[0]) SV_ClientPrintf (host_client, PRINT_CHAT, "FloodProt: %s\n", fp_msg); else SV_ClientPrintf (host_client, PRINT_CHAT, "FloodProt: You can't talk for %d seconds.\n", fp_secondsdead); return; } host_client->whensaidhead++; if (host_client->whensaidhead > 9) host_client->whensaidhead = 0; host_client->whensaid[host_client->whensaidhead] = realtime; } p = Hunk_TempAlloc (strlen(Cmd_Args (1)) + 1); strcpy (p, Cmd_Args (1)); if (*p == '"') { p++; p[strlen (p) - 1] = 0; } for (i = p; *i; i++) if (*i == 13) { // ^M if (sv_kickfake->int_val) { SV_BroadcastPrintf (PRINT_HIGH, "%s was kicked for attempting to fake messages\n", host_client->name); SV_ClientPrintf (host_client, PRINT_HIGH, "You were kicked for attempting to fake messages\n"); SV_DropClient (host_client); return; } else *i = '#'; } strncat (text, p, sizeof (text) - strlen (text)); strncat (text, "\n", sizeof (text) - strlen (text)); SV_Printf ("%s", text); for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) { if (client->state < cs_connected) // Clients connecting can hear. continue; if (host_client->spectator && !sv_spectalk->int_val) if (!client->spectator) continue; if (team) { // the spectator team if (host_client->spectator) { if (!client->spectator) continue; } else { t2 = Info_ValueForKey (client->userinfo, "team"); if (strcmp (t1, t2) || client->spectator) continue; // on different teams } } SV_ClientPrintf (client, PRINT_CHAT, "%s", text); } } /* SV_Say_f */ void SV_Say_f (void) { SV_Say (false); } /* SV_Say_Team_f */ void SV_Say_Team_f (void) { SV_Say (true); } //============================================================================ /* SV_Pings_f The client is showing the scoreboard, so send new ping times for all clients */ void SV_Pings_f (void) { client_t *client; int j; for (j = 0, client = svs.clients; j < MAX_CLIENTS; j++, client++) { if (client->state != cs_spawned) continue; ClientReliableWrite_Begin (host_client, svc_updateping, 4); ClientReliableWrite_Byte (host_client, j); ClientReliableWrite_Short (host_client, SV_CalcPing (client)); ClientReliableWrite_Begin (host_client, svc_updatepl, 4); ClientReliableWrite_Byte (host_client, j); ClientReliableWrite_Byte (host_client, client->lossage); } } /* SV_Kill_f */ void SV_Kill_f (void) { if (SVfloat (sv_player, health) <= 0) { SV_BeginRedirect (RD_CLIENT); SV_ClientPrintf (host_client, PRINT_HIGH, "Can't suicide -- already dead!\n"); SV_EndRedirect (); return; } *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, sv_funcs.ClientKill); } /* SV_TogglePause */ void SV_TogglePause (const char *msg) { int i; client_t *cl; sv.paused ^= 1; if (msg) SV_BroadcastPrintf (PRINT_HIGH, "%s", msg); // send notification to all clients for (i = 0, cl = svs.clients; i < MAX_CLIENTS; i++, cl++) { if (!cl->state) continue; ClientReliableWrite_Begin (cl, svc_setpause, 2); ClientReliableWrite_Byte (cl, sv.paused); } } /* SV_Pause_f */ void SV_Pause_f (void) { static double lastpausetime; double currenttime; char st[sizeof (host_client->name) + 32]; currenttime = Sys_DoubleTime (); if (lastpausetime + 1 > currenttime) { SV_ClientPrintf (host_client, PRINT_HIGH, "Pause flood not allowed.\n"); return; } lastpausetime = currenttime; if (!pausable->int_val) { SV_ClientPrintf (host_client, PRINT_HIGH, "Pause not allowed.\n"); return; } if (host_client->spectator) { SV_ClientPrintf (host_client, PRINT_HIGH, "Spectators can not pause.\n"); return; } if (!sv.paused) snprintf (st, sizeof (st), "%s paused the game\n", host_client->name); else snprintf (st, sizeof (st), "%s unpaused the game\n", host_client->name); SV_TogglePause (st); } /* SV_Drop_f The client is going to disconnect, so remove the connection immediately */ void SV_Drop_f (void) { SV_EndRedirect (); if (!host_client->spectator) SV_BroadcastPrintf (PRINT_HIGH, "%s dropped\n", host_client->name); SV_DropClient (host_client); } /* SV_PTrack_f Change the bandwidth estimate for a client */ void SV_PTrack_f (void) { int i; edict_t *ent, *tent; if (!host_client->spectator) return; if (Cmd_Argc () != 2) { // turn off tracking host_client->spec_track = 0; ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1); tent = EDICT_NUM (&sv_pr_state, 0); SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent); return; } i = atoi (Cmd_Argv (1)); if (i < 0 || i >= MAX_CLIENTS || svs.clients[i].state != cs_spawned || svs.clients[i].spectator) { SV_ClientPrintf (host_client, PRINT_HIGH, "Invalid client to track\n"); host_client->spec_track = 0; ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1); tent = EDICT_NUM (&sv_pr_state, 0); SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent); return; } host_client->spec_track = i + 1; // now tracking ent = EDICT_NUM (&sv_pr_state, host_client - svs.clients + 1); tent = EDICT_NUM (&sv_pr_state, i + 1); SVentity (ent, goalentity) = EDICT_TO_PROG (&sv_pr_state, tent); } /* SV_Rate_f Change the bandwidth estimate for a client */ void SV_Rate_f (void) { int rate; if (Cmd_Argc () != 2) { SV_ClientPrintf (host_client, PRINT_HIGH, "Current rate is %i\n", (int) (1.0 / host_client->netchan.rate + 0.5)); return; } rate = atoi (Cmd_Argv (1)); if ((sv_maxrate->int_val) && (rate > sv_maxrate->int_val)) { rate = bound (500, rate, sv_maxrate->int_val); } else { rate = bound (500, rate, 10000); } SV_ClientPrintf (host_client, PRINT_HIGH, "Net rate set to %i\n", rate); host_client->netchan.rate = 1.0 / rate; } /* SV_Msg_f Change the message level for a client */ void SV_Msg_f (void) { if (Cmd_Argc () != 2) { SV_ClientPrintf (host_client, PRINT_HIGH, "Current msg level is %i\n", host_client->messagelevel); return; } host_client->messagelevel = atoi (Cmd_Argv (1)); SV_ClientPrintf (host_client, PRINT_HIGH, "Msg level set to %i\n", host_client->messagelevel); } /* SV_SetInfo_f Allow clients to change userinfo */ void SV_SetInfo_f (void) { if (Cmd_Argc () == 1) { SV_Printf ("User info settings:\n"); Info_Print (host_client->userinfo); return; } if (Cmd_Argc () != 3) { SV_Printf ("usage: setinfo [ ]\n"); return; } if (Cmd_Argv (1)[0] == '*') return; // don't set priveledged values if (UserInfoCallback) { *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); G_var (&sv_pr_state, OFS_PARM0, string) = PR_SetString (&sv_pr_state, Cmd_Argv (1)); G_var (&sv_pr_state, OFS_PARM1, string) = PR_SetString (&sv_pr_state, Cmd_Argv (2)); PR_ExecuteProgram (&sv_pr_state, UserInfoCallback); return; } else { char oldval[MAX_INFO_STRING]; strcpy (oldval, Info_ValueForKey (host_client->userinfo, Cmd_Argv (1))); Info_SetValueForKey (host_client->userinfo, Cmd_Argv (1), Cmd_Argv (2), !sv_highchars->int_val); if (strequal (Info_ValueForKey (host_client->userinfo, Cmd_Argv (1)), oldval)) return; // key hasn't changed } // process any changed values SV_ExtractFromUserinfo (host_client); if (Info_FilterForKey (Cmd_Argv (1), client_info_filters)) { MSG_WriteByte (&sv.reliable_datagram, svc_setinfo); MSG_WriteByte (&sv.reliable_datagram, host_client - svs.clients); MSG_WriteString (&sv.reliable_datagram, Cmd_Argv (1)); MSG_WriteString (&sv.reliable_datagram, Info_ValueForKey (host_client->userinfo, Cmd_Argv (1))); } } /* SV_ShowServerinfo_f Dump serverinfo into a string */ void SV_ShowServerinfo_f (void) { Info_Print (svs.info); } void SV_NoSnap_f (void) { if (*host_client->uploadfn) { *host_client->uploadfn = 0; SV_BroadcastPrintf (PRINT_HIGH, "%s refused remote screenshot\n", host_client->name); } } typedef struct { const char *name; void (*func) (void); int no_redirect; } ucmd_t; ucmd_t ucmds[] = { {"new", SV_New_f}, {"modellist", SV_Modellist_f}, {"soundlist", SV_Soundlist_f}, {"prespawn", SV_PreSpawn_f}, {"spawn", SV_Spawn_f}, {"begin", SV_Begin_f, 1}, {"drop", SV_Drop_f}, {"pings", SV_Pings_f}, // issued by hand at client consoles {"rate", SV_Rate_f}, {"kill", SV_Kill_f, 1}, {"pause", SV_Pause_f, 1}, {"msg", SV_Msg_f}, {"say", SV_Say_f, 1}, {"say_team", SV_Say_Team_f, 1}, {"setinfo", SV_SetInfo_f, 1}, {"serverinfo", SV_ShowServerinfo_f}, {"download", SV_BeginDownload_f, 1}, {"nextdl", SV_NextDownload_f}, {"ptrack", SV_PTrack_f}, // ZOID - used with autocam {"snap", SV_NoSnap_f}, }; static int ucmds_compare (const void *_a, const void *_b) { ucmd_t *a = (ucmd_t*)_a; ucmd_t *b = (ucmd_t*)_b; return strcmp (a->name, b->name); } /* SV_ExecuteUserCommand Uhh...execute user command. :) */ void SV_ExecuteUserCommand (const char *s) { ucmd_t *u; ucmd_t cmd; Cmd_TokenizeString (s, false); sv_player = host_client->edict; cmd.name = Cmd_Argv(0); u = (ucmd_t*) bsearch (&cmd, ucmds, sizeof (ucmds) / sizeof (ucmds[0]), sizeof (ucmds[0]), ucmds_compare); if (!u) { SV_BeginRedirect (RD_CLIENT); SV_Printf ("Bad user command: %s\n", Cmd_Argv (0)); SV_EndRedirect (); } else { if (!u->no_redirect) SV_BeginRedirect (RD_CLIENT); u->func (); if (!u->no_redirect) SV_EndRedirect (); } } /* USER CMD EXECUTION */ /* SV_CalcRoll Used by view and sv_user */ float SV_CalcRoll (vec3_t angles, vec3_t velocity) { vec3_t forward, right, up; float sign; float side; float value; AngleVectors (angles, forward, right, up); side = DotProduct (velocity, right); sign = side < 0 ? -1 : 1; side = fabs (side); value = cl_rollangle->value; if (side < cl_rollspeed->value) side = side * value / cl_rollspeed->value; else side = value; return side * sign; } //============================================================================ vec3_t pmove_mins, pmove_maxs; /* AddLinksToPmove */ void AddLinksToPmove (areanode_t *node) { link_t *l, *next; edict_t *check; int pl; int i; physent_t *pe; pl = EDICT_TO_PROG (&sv_pr_state, sv_player); // touch linked edicts for (l = node->solid_edicts.next; l != &node->solid_edicts; l = next) { next = l->next; check = EDICT_FROM_AREA (l); if (SVentity (check, owner) == pl) continue; // player's own missile if (SVfloat (check, solid) == SOLID_BSP || SVfloat (check, solid) == SOLID_BBOX || SVfloat (check, solid) == SOLID_SLIDEBOX) { if (check == sv_player) continue; for (i = 0; i < 3; i++) if (SVvector (check, absmin)[i] > pmove_maxs[i] || SVvector (check, absmax)[i] < pmove_mins[i]) break; if (i != 3) continue; if (pmove.numphysent == MAX_PHYSENTS) return; pe = &pmove.physents[pmove.numphysent]; pmove.numphysent++; VectorCopy (SVvector (check, origin), pe->origin); pe->info = NUM_FOR_EDICT (&sv_pr_state, check); if (sv_fields.rotated_bbox != -1 && SVinteger (check, rotated_bbox)) { int h = SVinteger (check, rotated_bbox) - 1; extern clip_hull_t *pf_hull_list[]; pe->hull = pf_hull_list[h]->hulls[1]; } else { pe->hull = 0; if (SVfloat (check, solid) == SOLID_BSP) { pe->model = sv.models[(int) (SVfloat (check, modelindex))]; } else { pe->model = NULL; VectorCopy (SVvector (check, mins), pe->mins); VectorCopy (SVvector (check, maxs), pe->maxs); } } } } // recurse down both sides if (node->axis == -1) return; if (pmove_maxs[node->axis] > node->dist) AddLinksToPmove (node->children[0]); if (pmove_mins[node->axis] < node->dist) AddLinksToPmove (node->children[1]); } /* AddAllEntsToPmove For debugging */ void AddAllEntsToPmove (void) { int e; edict_t *check; int i; physent_t *pe; int pl; pl = EDICT_TO_PROG (&sv_pr_state, sv_player); check = NEXT_EDICT (&sv_pr_state, sv.edicts); for (e = 1; e < sv.num_edicts; e++, check = NEXT_EDICT (&sv_pr_state, check)) { if (check->free) continue; if (SVentity (check, owner) == pl) continue; if (SVfloat (check, solid) == SOLID_BSP || SVfloat (check, solid) == SOLID_BBOX || SVfloat (check, solid) == SOLID_SLIDEBOX) { if (check == sv_player) continue; for (i = 0; i < 3; i++) if (SVvector (check, absmin)[i] > pmove_maxs[i] || SVvector (check, absmax)[i] < pmove_mins[i]) break; if (i != 3) continue; pe = &pmove.physents[pmove.numphysent]; VectorCopy (SVvector (check, origin), pe->origin); pmove.physents[pmove.numphysent].info = e; if (SVfloat (check, solid) == SOLID_BSP) pe->model = sv.models[(int) (SVfloat (check, modelindex))]; else { pe->model = NULL; VectorCopy (SVvector (check, mins), pe->mins); VectorCopy (SVvector (check, maxs), pe->maxs); } if (++pmove.numphysent == MAX_PHYSENTS) break; } } } /* SV_PreRunCmd Done before running a player command. Clears the touch array */ byte playertouch[(MAX_EDICTS + 7) / 8]; void SV_PreRunCmd (void) { memset (playertouch, 0, sizeof (playertouch)); } /* SV_RunCmd */ void SV_RunCmd (usercmd_t *ucmd, qboolean inside) { edict_t *ent; int i, n, oldmsec; double tmp_time; int tmp_time1; if (!inside) { // prevent infinite loop host_client->msecs += ucmd->msec; if (!host_client->spectator && sv_timekick->int_val && ((tmp_time = realtime - host_client->last_check) >= sv_timekick_interval->value)) { tmp_time1 = tmp_time * (1000 + sv_timekick_fuzz->value); if ((host_client->last_check != -1) // don't do it if new player && (host_client->msecs > tmp_time1)) { host_client->msec_cheating++; SV_BroadcastPrintf (PRINT_HIGH, "%s thinks there are %d ms in %d seconds (Strike %d/%d)\n", host_client->name, host_client->msecs, (int) tmp_time, host_client->msec_cheating, sv_timekick->int_val); if (host_client->msec_cheating >= sv_timekick->int_val) { SV_BroadcastPrintf (PRINT_HIGH, "Strike %d for %s!!\n", host_client->msec_cheating, host_client->name); SV_BroadcastPrintf (PRINT_HIGH, "Please see http://www.quakeforge.net/speed_cheat.php for information on QuakeForge's time cheat protection. That page explains how some may be cheating without knowing it.\n"); SV_DropClient (host_client); } } host_client->msecs = 0; host_client->last_check = realtime; } } cmd = *ucmd; // chop up very long commands if (cmd.msec > 50) { oldmsec = ucmd->msec; cmd.msec = oldmsec / 2; SV_RunCmd (&cmd, 1); cmd.msec = oldmsec / 2; cmd.impulse = 0; SV_RunCmd (&cmd, 1); return; } if (!SVfloat (sv_player, fixangle)) VectorCopy (ucmd->angles, SVvector (sv_player, v_angle)); SVfloat (sv_player, button0) = ucmd->buttons & 1; // 1999-10-29 +USE fix by Maddes start if (!nouse) { SVfloat (sv_player, button1) = (ucmd->buttons & 4) >> 2; } // 1999-10-29 +USE fix by Maddes end SVfloat (sv_player, button2) = (ucmd->buttons & 2) >> 1; if (ucmd->impulse) SVfloat (sv_player, impulse) = ucmd->impulse; if (host_client->cuff_time > realtime) SVfloat (sv_player, button0) = SVfloat (sv_player, impulse) = 0; // // angles // show 1/3 the pitch angle and all the roll angle if (SVfloat (sv_player, health) > 0) { if (!SVfloat (sv_player, fixangle)) { SVvector (sv_player, angles)[PITCH] = -SVvector (sv_player, v_angle)[PITCH] / 3; SVvector (sv_player, angles)[YAW] = SVvector (sv_player, v_angle)[YAW]; } SVvector (sv_player, angles)[ROLL] = SV_CalcRoll (SVvector (sv_player, angles), SVvector (sv_player, velocity)) * 4; } sv_frametime = min (0.1, ucmd->msec * 0.001); if (!host_client->spectator) { *sv_globals.frametime = sv_frametime; *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, sv_funcs.PlayerPreThink); SV_RunThink (sv_player); } for (i = 0; i < 3; i++) pmove.origin[i] = SVvector (sv_player, origin)[i] + (SVvector (sv_player, mins)[i] - player_mins[i]); VectorCopy (SVvector (sv_player, velocity), pmove.velocity); VectorCopy (SVvector (sv_player, v_angle), pmove.angles); pmove.flying = SVfloat (sv_player, movetype) == MOVETYPE_FLY; pmove.spectator = host_client->spectator; pmove.waterjumptime = SVfloat (sv_player, teleport_time); pmove.numphysent = 1; pmove.physents[0].model = sv.worldmodel; pmove.cmd = *ucmd; pmove.dead = SVfloat (sv_player, health) <= 0; pmove.oldbuttons = host_client->oldbuttons; movevars.entgravity = host_client->entgravity; movevars.maxspeed = host_client->maxspeed; for (i = 0; i < 3; i++) { pmove_mins[i] = pmove.origin[i] - 256; pmove_maxs[i] = pmove.origin[i] + 256; } #if 0 AddAllEntsToPmove (); #else AddLinksToPmove (sv_areanodes); #endif #if 0 { int before, after; before = PM_TestPlayerPosition (pmove.origin); PlayerMove (); after = PM_TestPlayerPosition (pmove.origin); if (SVfloat (sv_player, health) > 0 && before && !after) SV_Printf ("player %s got stuck in playermove!!!!\n", host_client->name); } #else PlayerMove (); #endif host_client->oldbuttons = pmove.oldbuttons; SVfloat (sv_player, teleport_time) = pmove.waterjumptime; SVfloat (sv_player, waterlevel) = waterlevel; SVfloat (sv_player, watertype) = watertype; if (onground != -1) { SVfloat (sv_player, flags) = (int) SVfloat (sv_player, flags) | FL_ONGROUND; SVentity (sv_player, groundentity) = EDICT_TO_PROG (&sv_pr_state, EDICT_NUM (&sv_pr_state, pmove.physents[onground].info)); } else { SVfloat (sv_player, flags) = (int) SVfloat (sv_player, flags) & ~FL_ONGROUND; } for (i = 0; i < 3; i++) SVvector (sv_player, origin)[i] = pmove.origin[i] - (SVvector (sv_player, mins)[i] - player_mins[i]); #if 0 // truncate velocity the same way the net protocol will for (i = 0; i < 3; i++) SVvector (sv_player, velocity)[i] = (int) pmove.velocity[i]; #else VectorCopy (pmove.velocity, SVvector (sv_player, velocity)); #endif VectorCopy (pmove.angles, SVvector (sv_player, v_angle)); if (!host_client->spectator) { // link into place and touch triggers SV_LinkEdict (sv_player, true); // touch other objects for (i = 0; i < pmove.numtouch; i++) { n = pmove.physents[pmove.touchindex[i]].info; ent = EDICT_NUM (&sv_pr_state, n); if (!SVfunc (ent, touch) || (playertouch[n / 8] & (1 << (n % 8)))) continue; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, ent); *sv_globals.other = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, SVfunc (ent, touch)); playertouch[n / 8] |= 1 << (n % 8); } } } /* SV_PostRunCmd Done after running a player command. */ void SV_PostRunCmd (void) { // run post-think if (!host_client->spectator) { *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, sv_funcs.PlayerPostThink); SV_RunNewmis (); } else if (SpectatorThink) { *sv_globals.time = sv.time; *sv_globals.self = EDICT_TO_PROG (&sv_pr_state, sv_player); PR_ExecuteProgram (&sv_pr_state, SpectatorThink); } } /* SV_ExecuteClientMessage The current net_message is parsed for the given client */ void SV_ExecuteClientMessage (client_t *cl) { int c; const char *s; usercmd_t oldest, oldcmd, newcmd; client_frame_t *frame; vec3_t o; qboolean move_issued = false; // only allow one move command int checksumIndex; byte checksum, calculatedChecksum; int seq_hash; // calc ping time frame = &cl->frames[cl->netchan.incoming_acknowledged & UPDATE_MASK]; frame->ping_time = realtime - frame->senttime; // make sure the reply sequence number matches the incoming // sequence number if (cl->netchan.incoming_sequence >= cl->netchan.outgoing_sequence) cl->netchan.outgoing_sequence = cl->netchan.incoming_sequence; else cl->send_message = false; // don't reply, sequences have // slipped // save time for ping calculations cl->frames[cl->netchan.outgoing_sequence & UPDATE_MASK].senttime = realtime; cl->frames[cl->netchan.outgoing_sequence & UPDATE_MASK].ping_time = -1; host_client = cl; sv_player = host_client->edict; // seq_hash = (cl->netchan.incoming_sequence & 0xffff) ; // ^ QW_CHECK_HASH; seq_hash = cl->netchan.incoming_sequence; // mark time so clients will know how much to predict // other players cl->localtime = sv.time; cl->delta_sequence = -1; // no delta unless requested while (1) { if (net_message->badread) { SV_Printf ("SV_ReadClientMessage: badread\n"); SV_DropClient (cl); return; } c = MSG_ReadByte (net_message); if (c == -1) return; // Ender: Patched :) switch (c) { default: SV_Printf ("SV_ReadClientMessage: unknown command char\n"); SV_DropClient (cl); return; case clc_nop: break; case clc_delta: cl->delta_sequence = MSG_ReadByte (net_message); break; case clc_move: if (move_issued) return; // someone is trying to cheat... move_issued = true; checksumIndex = MSG_GetReadCount (net_message); checksum = (byte) MSG_ReadByte (net_message); // read loss percentage cl->lossage = MSG_ReadByte (net_message); MSG_ReadDeltaUsercmd (&nullcmd, &oldest); MSG_ReadDeltaUsercmd (&oldest, &oldcmd); MSG_ReadDeltaUsercmd (&oldcmd, &newcmd); if (cl->state != cs_spawned) break; // if the checksum fails, ignore the rest of the packet calculatedChecksum = COM_BlockSequenceCRCByte (net_message->message->data + checksumIndex + 1, MSG_GetReadCount (net_message) - checksumIndex - 1, seq_hash); if (calculatedChecksum != checksum) { Con_DPrintf ("Failed command checksum for %s(%d) (%d != %d)\n", cl->name, cl->netchan.incoming_sequence, checksum, calculatedChecksum); return; } if (!sv.paused) { SV_PreRunCmd (); if (net_drop < 20) { while (net_drop > 2) { SV_RunCmd (&cl->lastcmd, 0); net_drop--; } if (net_drop > 1) SV_RunCmd (&oldest, 0); if (net_drop > 0) SV_RunCmd (&oldcmd, 0); } SV_RunCmd (&newcmd, 0); SV_PostRunCmd (); } cl->lastcmd = newcmd; cl->lastcmd.buttons = 0; // avoid multiple fires on lag break; case clc_stringcmd: s = MSG_ReadString (net_message); SV_ExecuteUserCommand (s); break; case clc_tmove: MSG_ReadCoordV (net_message, o); // only allowed by spectators if (host_client->spectator) { VectorCopy (o, SVvector (sv_player, origin)); SV_LinkEdict (sv_player, false); } break; case clc_upload: SV_NextUpload (); break; } } } /* SV_UserInit */ void SV_UserInit (void) { qsort (ucmds, sizeof (ucmds) / sizeof (ucmds[0]), sizeof (ucmds[0]), ucmds_compare); cl_rollspeed = Cvar_Get ("cl_rollspeed", "200", CVAR_NONE, NULL, "How quickly a player straightens out after strafing"); cl_rollangle = Cvar_Get ("cl_rollangle", "2", CVAR_NONE, NULL, "How much a player's screen tilts when strafing"); sv_spectalk = Cvar_Get ("sv_spectalk", "1", CVAR_NONE, NULL, "Toggles the ability of spectators to talk to players"); sv_mapcheck = Cvar_Get ("sv_mapcheck", "1", CVAR_NONE, NULL, "Toggle the use of map checksumming to check for players who edit maps to cheat"); sv_kickfake = Cvar_Get ("sv_kickfake", "1", CVAR_NONE, NULL, "Kick users sending to send fake talk messages"); }