SSR: Add initial server-side recording system

Author: Chomenor

Makefile

@@ -1058,6 +1058,11 @@ Q3OBJ = \
   $(B)/client/sv_init.o \
   $(B)/client/sv_main.o \
   $(B)/client/sv_net_chan.o \
+  $(B)/client/sv_record_common.o \
+  $(B)/client/sv_record_convert.o \
+  $(B)/client/sv_record_main.o \
+  $(B)/client/sv_record_spectator.o \
+  $(B)/client/sv_record_writer.o \
   $(B)/client/sv_snapshot.o \
   $(B)/client/sv_world.o \
   \
@@ -1256,6 +1261,11 @@ Q3DOBJ = \
   $(B)/ded/sv_init.o \
   $(B)/ded/sv_main.o \
   $(B)/ded/sv_net_chan.o \
+  $(B)/ded/sv_record_common.o \
+  $(B)/ded/sv_record_convert.o \
+  $(B)/ded/sv_record_main.o \
+  $(B)/ded/sv_record_spectator.o \
+  $(B)/ded/sv_record_writer.o \
   $(B)/ded/sv_snapshot.o \
   $(B)/ded/sv_world.o \
   \

README.md

@@ -72,6 +72,18 @@ Performance is usually greater or equal to other opengl1 renderers
 
 Original ioquake3 renderer, performance is very poor on non-nvidia systems, unmaintained
 
+## Server Side Recording
+
+Enabled by `sv_recordAutoRecording 1` to record all matches on the server to records directory.
+
+To convert recorded file to demo format for playback, use `record_convert <filename> <clientnum> <instance>` command, where filename is the path to the .rec file within the records directory, clientnum is the client perspective to view, and instance differentiates multiple clients or reconnections with the same client number.
+
+To view available clients and instances for a record file, use `record_scan <filename>` command.
+
+## Admin Spectator
+
+Allows admins to spectate players on the server without joining (useful to monitor for cheating). To enable, set `sv_adminSpectatorPassword` on the server to a password of your choosing. To join the server in spectator mode, set password on the client to `spect_` plus the server password.
+
 ## [Build Instructions](BUILD.md)
 
 ## Contacts

code/server/server.h

@@ -489,3 +489,16 @@ void SV_LoadFilters( const char *filename );
 const char *SV_RunFilters( const char *userinfo, const netadr_t *addr );
 void SV_AddFilter_f( void );
 void SV_AddFilterCmd_f( void );
+
+//
+// sv_record_main.c
+//
+void Record_Initialize( void );
+void Record_ProcessUsercmd( int clientNum, usercmd_t *usercmd );
+void Record_ProcessConfigstring( int index, const char *value );
+void Record_ProcessServercmd( int clientNum, const char *value );
+void Record_ProcessMapLoaded( void );
+void Record_ProcessSnapshot( void );
+void Record_ProcessGameShutdown( void );
+qboolean Record_ProcessClientConnect( const netadr_t *address, const char *userinfo, int challenge, int qport, qboolean compat );
+qboolean Record_ProcessPacketEvent( const netadr_t *address, msg_t *msg, int qport );

code/server/sv_client.c

@@ -595,6 +595,10 @@ void SV_DirectConnect( const netadr_t *from ) {
 		return;
 	}
 
+	if ( Record_ProcessClientConnect( from, userinfo, challenge, qport, compat ) ) {
+		return;
+	}
+
 	// run userinfo filter
 	SV_SetTLD( tld, from, Sys_IsLANAddress( from ) );
 	Info_SetValueForKey( userinfo, "tld", tld );
@@ -2021,6 +2025,8 @@ void SV_ClientThink (client_t *cl, usercmd_t *cmd) {
 		return;		// may have been kicked during the last usercmd
 	}
 
+	Record_ProcessUsercmd( cl - svs.clients, cmd );
+
 	VM_Call( gvm, 1, GAME_CLIENT_THINK, cl - svs.clients );
 }
 

code/server/sv_game.c

@@ -993,6 +993,7 @@ Called every time a map changes
 ===============
 */
 void SV_ShutdownGameProgs( void ) {
+	Record_ProcessGameShutdown();
 	if ( !gvm ) {
 		return;
 	}

code/server/sv_init.c

@@ -143,6 +143,7 @@ void SV_SetConfigstring (int index, const char *val) {
 			SV_SendConfigstring(client, index);
 		}
 	}
+	Record_ProcessConfigstring( index, val );
 }
 
 
@@ -669,6 +670,8 @@ void SV_SpawnServer( const char *mapname, qboolean killBots ) {
 
 	Hunk_SetMark();
 
+	Record_ProcessMapLoaded();
+
 	Com_Printf ("-----------------------------------\n");
 
 	Sys_SetStatus( "Running map %s", mapname );
@@ -812,6 +815,7 @@ void SV_Init( void )
 	SV_TrackCvarChanges();
 
 	SV_InitChallenger();
+	Record_Initialize();
 }
 
 

code/server/sv_main.c

@@ -152,6 +152,8 @@ void SV_AddServerCommand( client_t *client, const char *cmd ) {
 	if ( client->state < CS_PRIMED )
 		return;
 
+	Record_ProcessServercmd( client - svs.clients, cmd );
+
 	client->reliableSequence++;
 	// if we would be losing an old command that hasn't been acknowledged,
 	// we must drop the connection
@@ -1027,6 +1029,7 @@ void SV_PacketEvent( const netadr_t *from, msg_t *msg ) {
 			return;
 		}
 	}
+	Record_ProcessPacketEvent( from, msg, qport );
 }