network.c

   1 #include "player.h"
   2 #include "network.h"
   3 #include "network_msg.h"
   4 #include "network_common.h"
   5 #include "player_remote.h"
   6 #include "world.h"
   7 #include "world_sfd.h"
   8 #include "world_routes.h"
   9 #include "vg/vg_imgui.h"
  10
  11 static void scores_update(void);
  12
  13 static int packet_minsize( SteamNetworkingMessage_t *msg, u32 size ){
  14    if( msg->m_cbSize < size ) {
  15       vg_error( "Invalid packet size (must be at least %u)\n", size );
  16       return 0;
  17    }
  18    else{
  19       return 1;
  20    }
  21 }
  22
  23 static void on_auth_ticket_recieved( void *result, void *context ){
  24    EncryptedAppTicketResponse_t *response = result;
  25
  26    if( response->m_eResult == k_EResultOK ){
  27       vg_info( "  New app ticket ready\n" );
  28    }
  29    else{
  30       vg_warn( "  Could not request new encrypted app ticket (%u)\n",
  31                   response->m_eResult );
  32    }
  33
  34    if( SteamAPI_ISteamUser_GetEncryptedAppTicket( hSteamUser,
  35             network_client.app_symmetric_key,
  36             vg_list_size(network_client.app_symmetric_key),
  37             &network_client.app_key_length )){
  38       vg_success( "  Loaded app ticket\n" );
  39    }
  40    else{
  41       vg_error( "  No ticket availible\n" );
  42       network_client.app_key_length = 0;
  43    }
  44 }
  45
  46 static void request_auth_ticket(void){
  47    /*
  48     * TODO Check for one thats cached on the disk and load it.
  49     * This might be OK though because steam seems to cache the result
  50     */
  51
  52    vg_info( "Requesting new authorization ticket\n" );
  53
  54    vg_steam_async_call *call = vg_alloc_async_steam_api_call();
  55    call->userdata = NULL;
  56    call->p_handler = on_auth_ticket_recieved;
  57    call->id =
  58       SteamAPI_ISteamUser_RequestEncryptedAppTicket( hSteamUser, NULL, 0 );
  59 }
  60
  61 static void network_send_username(void){
  62    if( !network_connected() )
  63       return;
  64
  65    netmsg_playerusername *update = alloca( sizeof(netmsg_playerusername)+
  66                                            NETWORK_USERNAME_MAX );
  67    update->inetmsg_id = k_inetmsg_playerusername;
  68    update->index = 0xff;
  69
  70    ISteamFriends *hSteamFriends = SteamAPI_SteamFriends();
  71    const char *username = SteamAPI_ISteamFriends_GetPersonaName(hSteamFriends);
  72    u32 chs = str_utf8_collapse( username, update->name, NETWORK_USERNAME_MAX );
  73
  74    SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
  75          hSteamNetworkingSockets, network_client.remote,
  76          update, sizeof(netmsg_playerusername)+chs+1,
  77          k_nSteamNetworkingSend_Reliable, NULL );
  78 }
  79
  80 static void network_send_request( netmsg_request *req, vg_msg *body,
  81                                   void (*callback)(
  82                                      netmsg_request *res, vg_msg *body,
  83                                      u64 userdata),
  84                                   u64 userdata ){
  85    u32 len = 0;
  86    if( body ){
  87       len = body->cur.co;
  88       vg_info( "Request scoreboard. Info (%u):\n", body->cur.co );
  89       vg_msg_print( body, len );
  90
  91       if( body->error != k_vg_msg_error_OK ){
  92          vg_error( "Body not OK\n" );
  93          return;
  94       }
  95    }
  96
  97    if( callback ){
  98       req->id = vg_pool_lru( &network_client.request_pool );
  99       if( req->id ){
 100          vg_pool_watch( &network_client.request_pool, req->id );
 101          struct network_request *pn =
 102             vg_pool_item( &network_client.request_pool, req->id );
 103          pn->callback = callback;
 104          pn->sendtime = vg.time_real;
 105          pn->userdata = userdata;
 106       }
 107       else{
 108          vg_error( "Unable to send request. Pool is full.\n" );
 109          return;
 110       }
 111    }
 112    else
 113       req->id = 0;
 114
 115    SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 116          hSteamNetworkingSockets, network_client.remote,
 117          req, sizeof(netmsg_request)+len,
 118          k_nSteamNetworkingSend_Reliable, NULL );
 119 }
 120
 121 static void network_scoreboard_callback( netmsg_request *res, vg_msg *body,
 122                                          u64 userdata ){
 123    world_instance *world = world_current_instance();
 124
 125    world_routes_recv_scoreboard( world, body, userdata, res->status );
 126    if( userdata == world_sfd.active_route_board )
 127       world_sfd_compile_active_scores();
 128 }
 129
 130
 131
 132 /* mod_uid: world mod uid,
 133  * route_uid: run name (just a string)
 134  * week:
 135  *   0   ALL TIME
 136  *   1   CURRENT WEEK
 137  *   2   ALL TIME + CURRENT WEEK
 138  *   .
 139  *   10+ specific week index
 140  */
 141 static void network_request_scoreboard( const char *mod_uid,
 142                                         const char *route_uid,
 143                                         u32 week, u64 userdata ){
 144    if( !network_connected() )
 145       return;
 146
 147    netmsg_request *req = alloca( sizeof(netmsg_request) + 512 );
 148    req->inetmsg_id = k_inetmsg_request;
 149
 150    vg_msg data;
 151    vg_msg_init( &data, req->q, 512 );
 152    vg_msg_wkvstr( &data, "endpoint", "scoreboard" );
 153    vg_msg_wkvstr( &data, "mod", mod_uid );
 154    vg_msg_wkvstr( &data, "route", route_uid );
 155    vg_msg_wkvu32( &data, "week", week );
 156    network_send_request( req, &data, network_scoreboard_callback, userdata );
 157 }
 158
 159 static void network_publish_callback( netmsg_request *res, vg_msg *body,
 160                                       u64 userdata ){
 161    if( res->status != k_request_status_ok ){
 162       vg_error( "Publish laptime, server error #%d\n", (i32)res->status );
 163    }
 164 }
 165
 166 static void network_publish_laptime( const char *mod_uid,
 167                                      const char *route_uid, f64 lap_time ){
 168    if( !network_connected() )
 169       return;
 170
 171    i32 time_centiseconds = lap_time * 100.0;
 172
 173    netmsg_request *req = alloca( sizeof(netmsg_request) + 512 );
 174    req->inetmsg_id = k_inetmsg_request;
 175
 176    vg_msg data;
 177    vg_msg_init( &data, req->q, 512 );
 178    vg_msg_wkvstr( &data, "endpoint", "setlap" );
 179    vg_msg_wkvstr( &data, "mod", mod_uid );
 180    vg_msg_wkvstr( &data, "route", route_uid );
 181    vg_msg_wkvi32( &data, "time", time_centiseconds );
 182    network_send_request( req, &data, network_publish_callback, 0 );
 183 }
 184
 185 static void network_request_rx_300_400( SteamNetworkingMessage_t *msg ){
 186    netmsg_blank *tmp = msg->m_pData;
 187
 188    if( tmp->inetmsg_id == k_inetmsg_request ){
 189
 190    }
 191    else if( tmp->inetmsg_id == k_inetmsg_response ){
 192       netmsg_request *res = (netmsg_request *)msg->m_pData;
 193
 194       vg_msg *body = NULL;
 195
 196       vg_msg data;
 197       if( res->status == k_request_status_ok ){
 198          vg_msg_init( &data, res->q, msg->m_cbSize - sizeof(netmsg_request) );
 199          vg_success( "Response to #%d:\n", (i32)res->id );
 200          vg_msg_print( &data, data.max );
 201          body = &data;
 202       }
 203       else {
 204          vg_warn( "Server response to #%d: %d\n", (i32)res->id, res->status );
 205       }
 206
 207       if( res->id ){
 208          struct network_request *pn =
 209             vg_pool_item( &network_client.request_pool, res->id );
 210          pn->callback( res, body, pn->userdata );
 211          vg_pool_unwatch( &network_client.request_pool, res->id );
 212       }
 213    }
 214 }
 215
 216 static void network_send_item( enum netmsg_playeritem_type type ){
 217    if( !network_connected() )
 218       return;
 219
 220    netmsg_playeritem *item =
 221       alloca( sizeof(netmsg_playeritem) + ADDON_UID_MAX );
 222    item->inetmsg_id = k_inetmsg_playeritem;
 223    item->type_index = type;
 224    item->client = 0;
 225
 226    if( (type == k_netmsg_playeritem_world0) ||
 227        (type == k_netmsg_playeritem_world1) ){
 228
 229       enum world_purpose purpose = type - k_netmsg_playeritem_world0;
 230       addon_reg *reg = world_static.instance_addons[ purpose ];
 231
 232       if( reg )
 233          addon_alias_uid( &reg->alias, item->uid );
 234       else
 235          item->uid[0] = '\0';
 236    }
 237    else{
 238       u16 view_id = 0;
 239       enum addon_type addon_type = k_addon_type_none;
 240       if( type == k_netmsg_playeritem_board ){
 241          view_id = localplayer.board_view_slot;
 242          addon_type = k_addon_type_board;
 243       }
 244       else if( type == k_netmsg_playeritem_player ){
 245          view_id = localplayer.playermodel_view_slot;
 246          addon_type = k_addon_type_player;
 247       }
 248       else
 249          assert(0);
 250
 251       struct addon_cache *cache = &addon_system.cache[addon_type];
 252       vg_pool *pool = &cache->pool;
 253
 254       SDL_AtomicLock( &addon_system.sl_cache_using_resources );
 255       addon_cache_entry *entry = vg_pool_item( pool, view_id );
 256       addon_alias_uid( &entry->reg_ptr->alias, item->uid );
 257       SDL_AtomicUnlock( &addon_system.sl_cache_using_resources );
 258    }
 259
 260    vg_info( "send equip: [%u] %s\n",
 261             item->type_index, item->uid );
 262    u32 chs = strlen(item->uid);
 263
 264    SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 265          hSteamNetworkingSockets, network_client.remote,
 266          item, sizeof(netmsg_playeritem)+chs+1,
 267          k_nSteamNetworkingSend_Reliable, NULL );
 268 }
 269
 270 static void network_disconnect(void){
 271    SteamAPI_ISteamNetworkingSockets_CloseConnection(
 272          hSteamNetworkingSockets, network_client.remote, 0, NULL, 0 );
 273    network_client.remote = 0;
 274    network_client.state = k_ESteamNetworkingConnectionState_None;
 275
 276    for( int i=0; i<vg_list_size(netplayers.list); i++ ){
 277       netplayers.list[i].active = 0;
 278    }
 279 }
 280
 281 static void render_server_status_gui(void){
 282    render_fb_bind( gpipeline.fb_workshop_preview, 0 );
 283
 284    /* HACK */
 285         vg_ui.cur_vert = 0;
 286         vg_ui.cur_indice = 0;
 287    vg_ui.vert_start = 0;
 288    vg_ui.indice_start = 0;
 289
 290    ui_rect r = { 0, 0, 128, 48 };
 291
 292    char buf[128];
 293    vg_str str;
 294    vg_strnull( &str, buf, sizeof(buf) );
 295
 296    u32 bg = 0xff000000;
 297
 298    if( steam_ready ){
 299       if( network_client.user_intent == k_server_intent_offline ){
 300          vg_strcat( &str, "Offline" );
 301       }
 302       else {
 303          ESteamNetworkingConnectionState state = network_client.state;
 304
 305          if( state == k_ESteamNetworkingConnectionState_None )
 306             vg_strcat( &str, "No Connection" );
 307          else if( state == k_ESteamNetworkingConnectionState_Connecting ){
 308             vg_strcat( &str, "Connecting to:\nskaterift.com" );
 309
 310             if( network_client.retries ){
 311                vg_strcat( &str, "\n(" );
 312                vg_strcati32( &str, network_client.retries );
 313                vg_strcat( &str, " retries)" );
 314             }
 315          }
 316          else if( state == k_ESteamNetworkingConnectionState_Connected ){
 317             vg_strcat( &str, "Connected to:\nskaterift.com" );
 318             bg = 0xff00a020;
 319          }
 320          else if( state == k_ESteamNetworkingConnectionState_ClosedByPeer )
 321             vg_strcat( &str, "Connection Closed" );
 322          else if( state == k_ESteamNetworkingConnectionState_FindingRoute )
 323             vg_strcat( &str, "Finding Route" );
 324          else if( state ==
 325                k_ESteamNetworkingConnectionState_ProblemDetectedLocally){
 326             vg_strcat( &str, "Problem Detected\nLocally" );
 327             bg = 0xff0000a0;
 328          }
 329          else
 330             vg_strcat( &str, "???" );
 331       }
 332    }
 333    else {
 334       vg_strcat( &str, "No Steam Connection" );
 335       bg = 0xff0000a0;
 336    }
 337
 338    ui_fill( r, bg );
 339    ui_text( r, buf, 1, k_ui_align_center, 0 );
 340    ui_flush( k_ui_shader_colour, 128, 48 );
 341
 342    skaterift.rt_textures[ k_skaterift_rt_server_status ] =
 343       gpipeline.fb_workshop_preview->attachments[0].id;
 344 }
 345
 346 static void on_server_connect_status( CallbackMsg_t *msg ){
 347    SteamNetConnectionStatusChangedCallback_t *info = (void *)msg->m_pubParam;
 348    vg_info( "  Connection status changed for %lu\n", info->m_hConn );
 349    vg_info( "  %s -> %s\n",
 350          string_ESteamNetworkingConnectionState(info->m_eOldState),
 351          string_ESteamNetworkingConnectionState(info->m_info.m_eState) );
 352
 353    if( info->m_hConn == network_client.remote ){
 354       network_client.state = info->m_info.m_eState;
 355
 356       if( info->m_info.m_eState ==
 357             k_ESteamNetworkingConnectionState_Connected ){
 358          vg_success("  Connected to remote server.. authenticating\n");
 359
 360          /* send version info to server */
 361          netmsg_version version;
 362          version.inetmsg_id = k_inetmsg_version;
 363          version.version = NETWORK_SKATERIFT_VERSION;
 364          SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 365                hSteamNetworkingSockets, network_client.remote, &version,
 366                sizeof(netmsg_version), k_nSteamNetworkingSend_Reliable, NULL );
 367
 368          /* TODO: We should really wait to see if the server is in auth mode
 369           * first... */
 370          u32 size = sizeof(netmsg_auth) + network_client.app_key_length;
 371          netmsg_auth *auth = alloca(size);
 372          auth->inetmsg_id = k_inetmsg_auth;
 373          auth->ticket_length = network_client.app_key_length;
 374          for( int i=0; i<network_client.app_key_length; i++ )
 375             auth->ticket[i] = network_client.app_symmetric_key[i];
 376
 377          SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 378                hSteamNetworkingSockets, network_client.remote, auth, size,
 379                k_nSteamNetworkingSend_Reliable, NULL );
 380       }
 381       else if( info->m_info.m_eState ==
 382             k_ESteamNetworkingConnectionState_ClosedByPeer ){
 383
 384          if( info->m_info.m_eEndReason ==
 385                k_ESteamNetConnectionEnd_Misc_InternalError ){
 386             network_client.retries = 40;
 387          }
 388          network_disconnect();
 389       }
 390       else if( info->m_info.m_eState ==
 391             k_ESteamNetworkingConnectionState_ProblemDetectedLocally ){
 392          network_disconnect();
 393       }
 394    }
 395    else{
 396       //vg_warn( "  Recieved signal from unknown connection\n" );
 397    }
 398
 399    render_server_status_gui();
 400 }
 401
 402 static void on_persona_state_change( CallbackMsg_t *msg ){
 403    if( !network_connected() )
 404       return;
 405
 406    PersonaStateChange_t *info = (void *)msg->m_pubParam;
 407    ISteamUser *hSteamUser = SteamAPI_SteamUser();
 408
 409    vg_info( "User: %llu, change: %u\n", info->m_ulSteamID,
 410                                         info->m_nChangeFlags );
 411
 412    if( info->m_ulSteamID == SteamAPI_ISteamUser_GetSteamID(hSteamUser) ){
 413       if( info->m_nChangeFlags & k_EPersonaChangeName ){
 414          network_send_username();
 415       }
 416    }
 417
 418    if( info->m_nChangeFlags & k_EPersonaChangeRelationshipChanged ){
 419       for( u32 i=0; i<NETWORK_MAX_PLAYERS; i ++ ){
 420          struct network_player *rp = &netplayers.list[i];
 421          if( rp->steamid == info->m_ulSteamID ){
 422             player_remote_update_friendflags( rp );
 423          }
 424       }
 425    }
 426 }
 427
 428 static void network_connect(void){
 429    char ip_buf[128];
 430    vg_str str;
 431    vg_strnull( &str, ip_buf, sizeof(ip_buf) );
 432    vg_strcat( &str, network_client.server_adress );
 433    vg_strcat( &str, ":" );
 434    vg_strcati32( &str, NETWORK_PORT );
 435
 436    if( !vg_strgood(&str) ) return;
 437
 438    /* Connect to server if not connected */
 439    SteamNetworkingIPAddr remoteAddr;
 440    SteamAPI_SteamNetworkingIPAddr_ParseString( &remoteAddr, str.buffer );
 441
 442    char buf[256];
 443    SteamAPI_SteamNetworkingIPAddr_ToString( &remoteAddr, buf, 256, 1 );
 444    vg_info( "connect to: %s\n", buf );
 445
 446    network_client.remote = SteamAPI_ISteamNetworkingSockets_ConnectByIPAddress(
 447                   hSteamNetworkingSockets, &remoteAddr, 0, NULL );
 448 }
 449
 450 static void network_sign_on_complete(void){
 451    vg_success( "Sign on completed\n" );
 452
 453    /* send our init info */
 454    network_send_username();
 455    for( u32 i=0; i<k_netmsg_playeritem_max; i ++ ){
 456       network_send_item(i);
 457    }
 458 }
 459
 460 static void poll_remote_connection(void){
 461    SteamNetworkingMessage_t *messages[32];
 462    int len;
 463
 464    for( int i=0; i<10; i++ ){
 465       len = SteamAPI_ISteamNetworkingSockets_ReceiveMessagesOnConnection(
 466             hSteamNetworkingSockets, network_client.remote,
 467             messages, vg_list_size(messages));
 468
 469       if( len <= 0 )
 470          return;
 471
 472       for( int i=0; i<len; i++ ){
 473          SteamNetworkingMessage_t *msg = messages[i];
 474
 475          if( msg->m_cbSize < sizeof(netmsg_blank) ){
 476             vg_warn( "Discarding message (too small: %d)\n", msg->m_cbSize );
 477             continue;
 478          }
 479
 480          netmsg_blank *tmp = msg->m_pData;
 481
 482          if( (tmp->inetmsg_id >= 200) && (tmp->inetmsg_id < 300) ){
 483             player_remote_rx_200_300( msg );
 484          }
 485          else if( (tmp->inetmsg_id >= 300) && (tmp->inetmsg_id < 400) ){
 486             network_request_rx_300_400( msg );
 487          }
 488          else {
 489             if( tmp->inetmsg_id == k_inetmsg_version ){
 490                netmsg_version *version = msg->m_pData;
 491                if( version->version != NETWORK_SKATERIFT_VERSION ){
 492                   network_disconnect();
 493                   /* we dont want to connect to this server ever */
 494                   network_client.retries = 999;
 495                   network_client.last_attempt = 999999999.9;
 496                   vg_error( "version mismatch with server\n" );
 497                }
 498                else {
 499                   network_client.remote_version = version->version;
 500                   network_sign_on_complete();
 501                }
 502             }
 503          }
 504
 505          SteamAPI_SteamNetworkingMessage_t_Release( msg );
 506       }
 507    }
 508 }
 509
 510 static void network_update(void){
 511    if( !steam_ready )
 512       return;
 513
 514    ESteamNetworkingConnectionState state = network_client.state;
 515
 516    if( network_client.user_intent == k_server_intent_offline ){
 517       if( state != k_ESteamNetworkingConnectionState_None )
 518          network_disconnect();
 519
 520       return;
 521    }
 522
 523    if( state == k_ESteamNetworkingConnectionState_Connected ){
 524       poll_remote_connection();
 525       f64 frame_delta = vg.time_real - network_client.last_frame;
 526
 527       if( frame_delta > NETWORK_FRAMERATE ){
 528          network_client.last_frame = vg.time_real;
 529          remote_player_send_playerframe();
 530          player__clear_sfx_buffer();
 531       }
 532
 533       remote_player_debug_update();
 534    }
 535    else {
 536       if( (state == k_ESteamNetworkingConnectionState_Connecting) ||
 537           (state == k_ESteamNetworkingConnectionState_FindingRoute) ){
 538          return;
 539       }
 540       else {
 541          f64 waited = vg.time_real - network_client.last_attempt,
 542              min_wait = 1.0;
 543
 544          if( network_client.retries > 5 )
 545             min_wait = 60.0;
 546
 547          if( waited < min_wait )
 548             return;
 549
 550          network_connect();
 551          network_client.retries ++;
 552          network_client.last_attempt = vg.time_real;
 553       }
 554    }
 555 }
 556
 557 static void chat_send_message( const char *message ){
 558    if( !network_connected() ){
 559       return;
 560    }
 561
 562    netmsg_chat *chat = alloca( sizeof(netmsg_chat) + NETWORK_MAX_CHAT );
 563    chat->inetmsg_id = k_inetmsg_chat;
 564    chat->client = 0;
 565
 566    u32 l = vg_strncpy( message, chat->msg, NETWORK_MAX_CHAT,
 567                        k_strncpy_always_add_null );
 568
 569    SteamAPI_ISteamNetworkingSockets_SendMessageToConnection(
 570          hSteamNetworkingSockets, network_client.remote,
 571          chat, sizeof(netmsg_chat)+l+1,
 572          k_nSteamNetworkingSend_Reliable, NULL );
 573 }
 574
 575 static int cmd_network_send_message( int argc, const char *argv[] ){
 576    char buf[ NETWORK_MAX_CHAT ];
 577    vg_str str;
 578    vg_strnull( &str, buf, NETWORK_MAX_CHAT );
 579
 580    for( int i=0; i<argc; i ++ ){
 581       vg_strcat( &str, argv[i] );
 582
 583       if( i < argc-1 )
 584          vg_strcatch( &str, ' ' );
 585    }
 586
 587    chat_send_message( buf );
 588    return 0;
 589 }
 590
 591 static void network_init(void){
 592    vg_console_reg_var( "network_info", &network_client.network_info,
 593                        k_var_dtype_i32, VG_VAR_PERSISTENT );
 594    if( steam_ready ){
 595       u32 alloc_size = sizeof(struct network_request)*NETWORK_MAX_REQUESTS;
 596       network_client.request_buffer =
 597          vg_linear_alloc( vg_mem.rtmemory, alloc_size );
 598       memset( network_client.request_buffer, 0, alloc_size );
 599
 600       vg_pool *pool = &network_client.request_pool;
 601       pool->buffer = network_client.request_buffer;
 602       pool->count = NETWORK_MAX_REQUESTS;
 603       pool->stride = sizeof( struct network_request );
 604       pool->offset = offsetof( struct network_request, poolnode );
 605       vg_pool_init( pool );
 606
 607       steam_register_callback( k_iSteamNetConnectionStatusChangedCallBack,
 608                                on_server_connect_status );
 609       steam_register_callback( k_iPersonaStateChange,
 610                                on_persona_state_change );
 611       request_auth_ticket();
 612
 613       vg_console_reg_cmd( "say", cmd_network_send_message, NULL );
 614    }
 615 }
 616
 617 static void network_end(void){
 618    /* TODO: Send buffered highscores that were not already */
 619    if( (network_client.state == k_ESteamNetworkingConnectionState_Connected) ||
 620        (network_client.state == k_ESteamNetworkingConnectionState_Connecting) )
 621    {
 622       SteamAPI_ISteamNetworkingSockets_CloseConnection(
 623             hSteamNetworkingSockets, network_client.remote, 0, NULL, 1 );
 624    }
 625 }