src/server/server.c

   1 /*
   2  * OpenDispense 2
   3  * UCC (University [of WA] Computer Club) Electronic Accounting System
   4  *
   5  * server.c - Client Server Code
   6  *
   7  * This file is licenced under the 3-clause BSD Licence. See the file
   8  * COPYING for full details.
   9  */
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12 #include "common.h"
  13 #include <sys/socket.h>
  14 #include <netinet/in.h>
  15 #include <arpa/inet.h>
  16 #include <unistd.h>
  17 #include <fcntl.h>      // O_*
  18 #include <string.h>
  19 #include <limits.h>
  20 #include <stdarg.h>
  21 #include <signal.h>
  22
  23 #define DEBUG_TRACE_CLIENT      0
  24 #define HACK_NO_REFUNDS 1
  25
  26 // Statistics
  27 #define MAX_CONNECTION_QUEUE    5
  28 #define INPUT_BUFFER_SIZE       256
  29 #define CLIENT_TIMEOUT  10      // Seconds
  30
  31 #define HASH_TYPE       SHA1
  32 #define HASH_LENGTH     20
  33
  34 #define MSG_STR_TOO_LONG        "499 Command too long (limit "EXPSTR(INPUT_BUFFER_SIZE)")\n"
  35
  36 // === TYPES ===
  37 typedef struct sClient
  38 {
  39          int    Socket; // Client socket ID
  40          int    ID;     // Client ID
  41
  42          int    bIsTrusted;     // Is the connection from a trusted host/port
  43
  44         char    *Username;
  45         char    Salt[9];
  46
  47          int    UID;
  48          int    EffectiveUID;
  49          int    bIsAuthed;
  50 }       tClient;
  51
  52 // === PROTOTYPES ===
  53 void    Server_Start(void);
  54 void    Server_Cleanup(void);
  55 void    Server_HandleClient(int Socket, int bTrusted);
  56 void    Server_ParseClientCommand(tClient *Client, char *CommandString);
  57 // --- Commands ---
  58 void    Server_Cmd_USER(tClient *Client, char *Args);
  59 void    Server_Cmd_PASS(tClient *Client, char *Args);
  60 void    Server_Cmd_AUTOAUTH(tClient *Client, char *Args);
  61 void    Server_Cmd_SETEUSER(tClient *Client, char *Args);
  62 void    Server_Cmd_ENUMITEMS(tClient *Client, char *Args);
  63 void    Server_Cmd_ITEMINFO(tClient *Client, char *Args);
  64 void    Server_Cmd_DISPENSE(tClient *Client, char *Args);
  65 void    Server_Cmd_REFUND(tClient *Client, char *Args);
  66 void    Server_Cmd_GIVE(tClient *Client, char *Args);
  67 void    Server_Cmd_DONATE(tClient *Client, char *Args);
  68 void    Server_Cmd_ADD(tClient *Client, char *Args);
  69 void    Server_Cmd_SET(tClient *Client, char *Args);
  70 void    Server_Cmd_ENUMUSERS(tClient *Client, char *Args);
  71 void    Server_Cmd_USERINFO(tClient *Client, char *Args);
  72 void    _SendUserInfo(tClient *Client, int UserID);
  73 void    Server_Cmd_USERADD(tClient *Client, char *Args);
  74 void    Server_Cmd_USERFLAGS(tClient *Client, char *Args);
  75 void    Server_Cmd_UPDATEITEM(tClient *Client, char *Args);
  76 // --- Helpers ---
  77 void    Debug(tClient *Client, const char *Format, ...);
  78  int    sendf(int Socket, const char *Format, ...);
  79  int    Server_int_ParseArgs(int bUseLongArg, char *ArgStr, ...);
  80  int    Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value);
  81
  82 // === CONSTANTS ===
  83 // - Commands
  84 const struct sClientCommand {
  85         const char      *Name;
  86         void    (*Function)(tClient *Client, char *Arguments);
  87 }       gaServer_Commands[] = {
  88         {"USER", Server_Cmd_USER},
  89         {"PASS", Server_Cmd_PASS},
  90         {"AUTOAUTH", Server_Cmd_AUTOAUTH},
  91         {"SETEUSER", Server_Cmd_SETEUSER},
  92         {"ENUM_ITEMS", Server_Cmd_ENUMITEMS},
  93         {"ITEM_INFO", Server_Cmd_ITEMINFO},
  94         {"DISPENSE", Server_Cmd_DISPENSE},
  95         {"REFUND", Server_Cmd_REFUND},
  96         {"GIVE", Server_Cmd_GIVE},
  97         {"DONATE", Server_Cmd_DONATE},
  98         {"ADD", Server_Cmd_ADD},
  99         {"SET", Server_Cmd_SET},
 100         {"ENUM_USERS", Server_Cmd_ENUMUSERS},
 101         {"USER_INFO", Server_Cmd_USERINFO},
 102         {"USER_ADD", Server_Cmd_USERADD},
 103         {"USER_FLAGS", Server_Cmd_USERFLAGS},
 104         {"UPDATE_ITEM", Server_Cmd_UPDATEITEM}
 105 };
 106 #define NUM_COMMANDS    ((int)(sizeof(gaServer_Commands)/sizeof(gaServer_Commands[0])))
 107
 108 // === GLOBALS ===
 109 // - Configuration
 110  int    giServer_Port = 11020;
 111  int    gbServer_RunInBackground = 0;
 112 char    *gsServer_LogFile = "/var/log/dispsrv.log";
 113 char    *gsServer_ErrorLog = "/var/log/dispsrv.err";
 114 // - State variables
 115  int    giServer_Socket;        // Server socket
 116  int    giServer_NextClientID = 1;      // Debug client ID
 117
 118
 119 // === CODE ===
 120 /**
 121  * \brief Open listenting socket and serve connections
 122  */
 123 void Server_Start(void)
 124 {
 125          int    client_socket;
 126         struct sockaddr_in      server_addr, client_addr;
 127
 128         atexit(Server_Cleanup);
 129         // Ignore SIGPIPE (stops crashes when the client exits early)
 130         signal(SIGPIPE, SIG_IGN);
 131
 132         // Create Server
 133         giServer_Socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
 134         if( giServer_Socket < 0 ) {
 135                 fprintf(stderr, "ERROR: Unable to create server socket\n");
 136                 return ;
 137         }
 138
 139         // Make listen address
 140         memset(&server_addr, 0, sizeof(server_addr));
 141         server_addr.sin_family = AF_INET;       // Internet Socket
 142         server_addr.sin_addr.s_addr = htonl(INADDR_ANY);        // Listen on all interfaces
 143         server_addr.sin_port = htons(giServer_Port);    // Port
 144
 145         // Bind
 146         if( bind(giServer_Socket, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 ) {
 147                 fprintf(stderr, "ERROR: Unable to bind to 0.0.0.0:%i\n", giServer_Port);
 148                 perror("Binding");
 149                 return ;
 150         }
 151
 152         // Fork into background
 153         if( gbServer_RunInBackground )
 154         {
 155                 int newin, newout, newerr;
 156                 int pid = fork();
 157                 if( pid == -1 ) {
 158                         fprintf(stderr, "ERROR: Unable to fork\n");
 159                         perror("fork background");
 160                         exit(-1);
 161                 }
 162                 if( pid != 0 ) {
 163                         // Parent, quit
 164                         exit(0);
 165                 }
 166                 // In child
 167                 // - Sort out stdin/stdout
 168                 newin  = open("/dev/null", O_RDONLY);
 169                 newout = open(gsServer_LogFile, O_CREAT|O_APPEND, 0644);
 170                 newerr = open(gsServer_ErrorLog, O_CREAT|O_APPEND, 0644);
 171                 dup2(newin, 0);
 172                 dup2(newout, 1);
 173                 dup2(newerr, 2);
 174         }
 175
 176         // Start the helper thread
 177         StartPeriodicThread();
 178
 179         // Listen
 180         if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
 181                 fprintf(stderr, "ERROR: Unable to listen to socket\n");
 182                 perror("Listen");
 183                 return ;
 184         }
 185
 186         printf("Listening on 0.0.0.0:%i\n", giServer_Port);
 187
 188         // write pidfile
 189         {
 190                 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
 191                 if( fp ) {
 192                         fprintf(fp, "%i", getpid());
 193                         fclose(fp);
 194                 }
 195         }
 196
 197         for(;;)
 198         {
 199                 uint    len = sizeof(client_addr);
 200                  int    bTrusted = 0;
 201
 202                 // Accept a connection
 203                 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
 204                 if(client_socket < 0) {
 205                         fprintf(stderr, "ERROR: Unable to accept client connection\n");
 206                         return ;
 207                 }
 208
 209                 // Set a timeout on the user conneciton
 210                 {
 211                         struct timeval tv;
 212                         tv.tv_sec = CLIENT_TIMEOUT;
 213                         tv.tv_usec = 0;
 214                         if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
 215                         {
 216                                 perror("setsockopt");
 217                                 return ;
 218                         }
 219                 }
 220
 221                 // Debug: Print the connection string
 222                 if(giDebugLevel >= 2) {
 223                         char    ipstr[INET_ADDRSTRLEN];
 224                         inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
 225                         printf("Client connection from %s:%i\n",
 226                                 ipstr, ntohs(client_addr.sin_port));
 227                 }
 228
 229                 // Doesn't matter what, localhost is trusted
 230                 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
 231                         bTrusted = 1;
 232
 233                 // Trusted Connections
 234                 if( ntohs(client_addr.sin_port) < 1024 )
 235                 {
 236                         // TODO: Make this runtime configurable
 237                         switch( ntohl( client_addr.sin_addr.s_addr ) )
 238                         {
 239                         case 0x7F000001:        // 127.0.0.1    localhost
 240                 //      case 0x825F0D00:        // 130.95.13.0
 241                         case 0x825F0D07:        // 130.95.13.7  motsugo
 242                         case 0x825F0D11:        // 130.95.13.17 mermaid
 243                         case 0x825F0D12:        // 130.95.13.18 mussel
 244                         case 0x825F0D17:        // 130.95.13.23 martello
 245                         case 0x825F0D2A:        // 130.95.13.42 meersau
 246                         case 0x825F0D42:        // 130.95.13.66 heathred
 247                                 bTrusted = 1;
 248                                 break;
 249                         default:
 250                                 break;
 251                         }
 252                 }
 253
 254                 // TODO: Multithread this?
 255                 Server_HandleClient(client_socket, bTrusted);
 256
 257                 close(client_socket);
 258         }
 259 }
 260
 261 void Server_Cleanup(void)
 262 {
 263         printf("\nClose(%i)\n", giServer_Socket);
 264         close(giServer_Socket);
 265         unlink("/var/run/dispsrv.pid");
 266 }
 267
 268 /**
 269  * \brief Reads from a client socket and parses the command strings
 270  * \param Socket        Client socket number/handle
 271  * \param bTrusted      Is the client trusted?
 272  */
 273 void Server_HandleClient(int Socket, int bTrusted)
 274 {
 275         char    inbuf[INPUT_BUFFER_SIZE];
 276         char    *buf = inbuf;
 277          int    remspace = INPUT_BUFFER_SIZE-1;
 278          int    bytes = -1;
 279         tClient clientInfo;
 280
 281         memset(&clientInfo, 0, sizeof(clientInfo));
 282
 283         // Initialise Client info
 284         clientInfo.Socket = Socket;
 285         clientInfo.ID = giServer_NextClientID ++;
 286         clientInfo.bIsTrusted = bTrusted;
 287         clientInfo.EffectiveUID = -1;
 288
 289         // Read from client
 290         /*
 291          * Notes:
 292          * - The `buf` and `remspace` variables allow a line to span several
 293          *   calls to recv(), if a line is not completed in one recv() call
 294          *   it is saved to the beginning of `inbuf` and `buf` is updated to
 295          *   the end of it.
 296          */
 297         // TODO: Use select() instead (to give a timeout)
 298         while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
 299         {
 300                 char    *eol, *start;
 301                 buf[bytes] = '\0';      // Allow us to use stdlib string functions on it
 302
 303                 // Split by lines
 304                 start = inbuf;
 305                 while( (eol = strchr(start, '\n')) )
 306                 {
 307                         *eol = '\0';
 308
 309                         Server_ParseClientCommand(&clientInfo, start);
 310
 311                         start = eol + 1;
 312                 }
 313
 314                 // Check if there was an incomplete line
 315                 if( *start != '\0' ) {
 316                          int    tailBytes = bytes - (start-buf);
 317                         // Roll back in buffer
 318                         memcpy(inbuf, start, tailBytes);
 319                         remspace -= tailBytes;
 320                         if(remspace == 0) {
 321                                 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
 322                                 buf = inbuf;
 323                                 remspace = INPUT_BUFFER_SIZE - 1;
 324                         }
 325                 }
 326                 else {
 327                         buf = inbuf;
 328                         remspace = INPUT_BUFFER_SIZE - 1;
 329                 }
 330         }
 331
 332         // Check for errors
 333         if( bytes < 0 ) {
 334                 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
 335                 return ;
 336         }
 337
 338         if(giDebugLevel >= 2) {
 339                 printf("Client %i: Disconnected\n", clientInfo.ID);
 340         }
 341 }
 342
 343 /**
 344  * \brief Parses a client command and calls the required helper function
 345  * \param Client        Pointer to client state structure
 346  * \param CommandString Command from client (single line of the command)
 347  * \return Heap String to return to the client
 348  */
 349 void Server_ParseClientCommand(tClient *Client, char *CommandString)
 350 {
 351         char    *command, *args;
 352          int    i;
 353
 354         if( giDebugLevel >= 2 )
 355                 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
 356
 357         if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
 358         {
 359                 if( command == NULL )   return ;
 360                 // Is this an error? (just ignore for now)
 361         }
 362
 363
 364         // Find command
 365         for( i = 0; i < NUM_COMMANDS; i++ )
 366         {
 367                 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
 368                         if( giDebugLevel >= 2 )
 369                                 Debug(Client, "CMD %s - \"%s\"", command, args);
 370                         gaServer_Commands[i].Function(Client, args);
 371                         return ;
 372                 }
 373         }
 374
 375         sendf(Client->Socket, "400 Unknown Command\n");
 376 }
 377
 378 // ---
 379 // Commands
 380 // ---
 381 /**
 382  * \brief Set client username
 383  *
 384  * Usage: USER <username>
 385  */
 386 void Server_Cmd_USER(tClient *Client, char *Args)
 387 {
 388         char    *username;
 389
 390         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 391         {
 392                 sendf(Client->Socket, "407 USER takes 1 argument\n");
 393                 return ;
 394         }
 395
 396         // Debug!
 397         if( giDebugLevel )
 398                 Debug(Client, "Authenticating as '%s'", username);
 399
 400         // Save username
 401         if(Client->Username)
 402                 free(Client->Username);
 403         Client->Username = strdup(username);
 404
 405         #if USE_SALT
 406         // Create a salt (that changes if the username is changed)
 407         // Yes, I know, I'm a little paranoid, but who isn't?
 408         Client->Salt[0] = 0x21 + (rand()&0x3F);
 409         Client->Salt[1] = 0x21 + (rand()&0x3F);
 410         Client->Salt[2] = 0x21 + (rand()&0x3F);
 411         Client->Salt[3] = 0x21 + (rand()&0x3F);
 412         Client->Salt[4] = 0x21 + (rand()&0x3F);
 413         Client->Salt[5] = 0x21 + (rand()&0x3F);
 414         Client->Salt[6] = 0x21 + (rand()&0x3F);
 415         Client->Salt[7] = 0x21 + (rand()&0x3F);
 416
 417         // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
 418         sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
 419         #else
 420         sendf(Client->Socket, "100 User Set\n");
 421         #endif
 422 }
 423
 424 /**
 425  * \brief Authenticate as a user
 426  *
 427  * Usage: PASS <hash>
 428  */
 429 void Server_Cmd_PASS(tClient *Client, char *Args)
 430 {
 431         char    *passhash;
 432          int    flags;
 433
 434         if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
 435         {
 436                 sendf(Client->Socket, "407 PASS takes 1 argument\n");
 437                 return ;
 438         }
 439
 440         // Pass on to cokebank
 441         Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
 442
 443         if( Client->UID == -1 ) {
 444                 sendf(Client->Socket, "401 Auth Failure\n");
 445                 return ;
 446         }
 447
 448         flags = Bank_GetFlags(Client->UID);
 449         if( flags & USER_FLAG_DISABLED ) {
 450                 Client->UID = -1;
 451                 sendf(Client->Socket, "403 Account Disabled\n");
 452                 return ;
 453         }
 454         if( flags & USER_FLAG_INTERNAL ) {
 455                 Client->UID = -1;
 456                 sendf(Client->Socket, "403 Internal account\n");
 457                 return ;
 458         }
 459
 460         Client->bIsAuthed = 1;
 461         sendf(Client->Socket, "200 Auth OK\n");
 462 }
 463
 464 /**
 465  * \brief Authenticate as a user without a password
 466  *
 467  * Usage: AUTOAUTH <user>
 468  */
 469 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
 470 {
 471         char    *username;
 472          int    userflags;
 473
 474         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 475         {
 476                 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
 477                 return ;
 478         }
 479
 480         // Check if trusted
 481         if( !Client->bIsTrusted ) {
 482                 if(giDebugLevel)
 483                         Debug(Client, "Untrusted client attempting to AUTOAUTH");
 484                 sendf(Client->Socket, "401 Untrusted\n");
 485                 return ;
 486         }
 487
 488         // Get UID
 489         Client->UID = Bank_GetAcctByName( username, 0 );
 490         if( Client->UID < 0 ) {
 491                 if(giDebugLevel)
 492                         Debug(Client, "Unknown user '%s'", username);
 493                 sendf(Client->Socket, "403 Auth Failure\n");
 494                 return ;
 495         }
 496
 497         userflags = Bank_GetFlags(Client->UID);
 498         // You can't be an internal account
 499         if( userflags & USER_FLAG_INTERNAL ) {
 500                 if(giDebugLevel)
 501                         Debug(Client, "Autoauth as '%s', not allowed", username);
 502                 Client->UID = -1;
 503                 sendf(Client->Socket, "403 Account is internal\n");
 504                 return ;
 505         }
 506
 507         // Disabled accounts
 508         if( userflags & USER_FLAG_DISABLED ) {
 509                 Client->UID = -1;
 510                 sendf(Client->Socket, "403 Account disabled\n");
 511                 return ;
 512         }
 513
 514         Client->bIsAuthed = 1;
 515
 516         if(giDebugLevel)
 517                 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
 518
 519         sendf(Client->Socket, "200 Auth OK\n");
 520 }
 521
 522 /**
 523  * \brief Set effective user
 524  */
 525 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
 526 {
 527         char    *username;
 528          int    eUserFlags, userFlags;
 529
 530         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 531         {
 532                 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
 533                 return ;
 534         }
 535
 536         if( !strlen(Args) ) {
 537                 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
 538                 return ;
 539         }
 540
 541         // Check authentication
 542         if( !Client->bIsAuthed ) {
 543                 sendf(Client->Socket, "401 Not Authenticated\n");
 544                 return ;
 545         }
 546
 547         // Check user permissions
 548         userFlags = Bank_GetFlags(Client->UID);
 549         if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
 550                 sendf(Client->Socket, "403 Not in coke\n");
 551                 return ;
 552         }
 553
 554         // Set id
 555         Client->EffectiveUID = Bank_GetAcctByName(username, 0);
 556         if( Client->EffectiveUID == -1 ) {
 557                 sendf(Client->Socket, "404 User not found\n");
 558                 return ;
 559         }
 560
 561         // You can't be an internal account
 562         if( !(userFlags & USER_FLAG_ADMIN) )
 563         {
 564                 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
 565                 if( eUserFlags & USER_FLAG_INTERNAL ) {
 566                         Client->EffectiveUID = -1;
 567                         sendf(Client->Socket, "404 User not found\n");
 568                         return ;
 569                 }
 570                 // Disabled only avaliable to admins
 571                 if( eUserFlags & USER_FLAG_DISABLED ) {
 572                         Client->EffectiveUID = -1;
 573                         sendf(Client->Socket, "403 Account disabled\n");
 574                         return ;
 575                 }
 576         }
 577
 578         sendf(Client->Socket, "200 User set\n");
 579 }
 580
 581 /**
 582  * \brief Send an item status to the client
 583  * \param Client        Who to?
 584  * \param Item  Item to send
 585  */
 586 void Server_int_SendItem(tClient *Client, tItem *Item)
 587 {
 588         char    *status = "avail";
 589
 590         if( Item->Handler->CanDispense )
 591         {
 592                 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
 593                 {
 594                 case  0:        status = "avail";       break;
 595                 case  1:        status = "sold";        break;
 596                 default:
 597                 case -1:        status = "error";       break;
 598                 }
 599         }
 600
 601         // KNOWN HACK: Naming a slot 'dead' disables it
 602         if( strcmp(Item->Name, "dead") == 0 )
 603                 status = "sold";        // Another status?
 604
 605         sendf(Client->Socket,
 606                 "202 Item %s:%i %s %i %s\n",
 607                 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
 608                 );
 609 }
 610
 611 /**
 612  * \brief Enumerate the items that the server knows about
 613  */
 614 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
 615 {
 616          int    i, count;
 617
 618         if( Args != NULL && strlen(Args) ) {
 619                 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
 620                 return ;
 621         }
 622
 623         // Count shown items
 624         count = 0;
 625         for( i = 0; i < giNumItems; i ++ ) {
 626                 if( gaItems[i].bHidden )        continue;
 627                 count ++;
 628         }
 629
 630         sendf(Client->Socket, "201 Items %i\n", count);
 631
 632         for( i = 0; i < giNumItems; i ++ ) {
 633                 if( gaItems[i].bHidden )        continue;
 634                 Server_int_SendItem( Client, &gaItems[i] );
 635         }
 636
 637         sendf(Client->Socket, "200 List end\n");
 638 }
 639
 640 tItem *_GetItemFromString(char *String)
 641 {
 642         tHandler        *handler;
 643         char    *type = String;
 644         char    *colon = strchr(String, ':');
 645          int    num, i;
 646
 647         if( !colon ) {
 648                 return NULL;
 649         }
 650
 651         num = atoi(colon+1);
 652         *colon = '\0';
 653
 654         // Find handler
 655         handler = NULL;
 656         for( i = 0; i < giNumHandlers; i ++ )
 657         {
 658                 if( strcmp(gaHandlers[i]->Name, type) == 0) {
 659                         handler = gaHandlers[i];
 660                         break;
 661                 }
 662         }
 663         if( !handler ) {
 664                 return NULL;
 665         }
 666
 667         // Find item
 668         for( i = 0; i < giNumItems; i ++ )
 669         {
 670                 if( gaItems[i].Handler != handler )     continue;
 671                 if( gaItems[i].ID != num )      continue;
 672                 return &gaItems[i];
 673         }
 674         return NULL;
 675 }
 676
 677 /**
 678  * \brief Fetch information on a specific item
 679  */
 680 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
 681 {
 682         tItem   *item;
 683         char    *itemname;
 684
 685         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 686                 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
 687                 return ;
 688         }
 689         item = _GetItemFromString(Args);
 690
 691         if( !item ) {
 692                 sendf(Client->Socket, "406 Bad Item ID\n");
 693                 return ;
 694         }
 695
 696         Server_int_SendItem( Client, item );
 697 }
 698
 699 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
 700 {
 701         tItem   *item;
 702          int    ret;
 703          int    uid;
 704         char    *itemname;
 705
 706         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 707                 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
 708                 return ;
 709         }
 710
 711         if( !Client->bIsAuthed ) {
 712                 sendf(Client->Socket, "401 Not Authenticated\n");
 713                 return ;
 714         }
 715
 716         item = _GetItemFromString(itemname);
 717         if( !item ) {
 718                 sendf(Client->Socket, "406 Bad Item ID\n");
 719                 return ;
 720         }
 721
 722         if( Client->EffectiveUID != -1 ) {
 723                 uid = Client->EffectiveUID;
 724         }
 725         else {
 726                 uid = Client->UID;
 727         }
 728
 729         switch( ret = DispenseItem( Client->UID, uid, item ) )
 730         {
 731         case 0: sendf(Client->Socket, "200 Dispense OK\n");     return ;
 732         case 1: sendf(Client->Socket, "501 Unable to dispense\n");      return ;
 733         case 2: sendf(Client->Socket, "402 Poor You\n");        return ;
 734         default:
 735                 sendf(Client->Socket, "500 Dispense Error (%i)\n", ret);
 736                 return ;
 737         }
 738 }
 739
 740 void Server_Cmd_REFUND(tClient *Client, char *Args)
 741 {
 742         tItem   *item;
 743          int    uid, price_override = 0;
 744         char    *username, *itemname, *price_str;
 745
 746         if( Server_int_ParseArgs(0, Args, &username, &itemname, &price_str, NULL) ) {
 747                 if( !itemname || price_str ) {
 748                         sendf(Client->Socket, "407 REFUND takes 2 or 3 arguments\n");
 749                         return ;
 750                 }
 751         }
 752
 753         if( !Client->bIsAuthed ) {
 754                 sendf(Client->Socket, "401 Not Authenticated\n");
 755                 return ;
 756         }
 757
 758         // Check user permissions
 759         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
 760                 sendf(Client->Socket, "403 Not in coke\n");
 761                 return ;
 762         }
 763
 764         uid = Bank_GetAcctByName(username, 0);
 765         if( uid == -1 ) {
 766                 sendf(Client->Socket, "404 Unknown user\n");
 767                 return ;
 768         }
 769
 770         item = _GetItemFromString(itemname);
 771         if( !item ) {
 772                 sendf(Client->Socket, "406 Bad Item ID\n");
 773                 return ;
 774         }
 775
 776         if( price_str )
 777                 price_override = atoi(price_str);
 778
 779         switch( DispenseRefund( Client->UID, uid, item, price_override ) )
 780         {
 781         case 0: sendf(Client->Socket, "200 Item Refunded\n");   return ;
 782         default:
 783                 sendf(Client->Socket, "500 Dispense Error\n");
 784                 return;
 785         }
 786 }
 787
 788 void Server_Cmd_GIVE(tClient *Client, char *Args)
 789 {
 790         char    *recipient, *ammount, *reason;
 791          int    uid, iAmmount;
 792          int    thisUid;
 793
 794         // Parse arguments
 795         if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
 796                 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
 797                 return ;
 798         }
 799
 800         // Check for authed
 801         if( !Client->bIsAuthed ) {
 802                 sendf(Client->Socket, "401 Not Authenticated\n");
 803                 return ;
 804         }
 805
 806         // Get recipient
 807         uid = Bank_GetAcctByName(recipient, 0);
 808         if( uid == -1 ) {
 809                 sendf(Client->Socket, "404 Invalid target user\n");
 810                 return ;
 811         }
 812
 813         // You can't alter an internal account
 814 //      if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 815 //              sendf(Client->Socket, "404 Invalid target user\n");
 816 //              return ;
 817 //      }
 818
 819         // Parse ammount
 820         iAmmount = atoi(ammount);
 821         if( iAmmount <= 0 ) {
 822                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 823                 return ;
 824         }
 825
 826         if( Client->EffectiveUID != -1 ) {
 827                 thisUid = Client->EffectiveUID;
 828         }
 829         else {
 830                 thisUid = Client->UID;
 831         }
 832
 833         // Do give
 834         switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
 835         {
 836         case 0:
 837                 sendf(Client->Socket, "200 Give OK\n");
 838                 return ;
 839         case 2:
 840                 sendf(Client->Socket, "402 Poor You\n");
 841                 return ;
 842         default:
 843                 sendf(Client->Socket, "500 Unknown error\n");
 844                 return ;
 845         }
 846 }
 847
 848 void Server_Cmd_DONATE(tClient *Client, char *Args)
 849 {
 850         char    *ammount, *reason;
 851          int    iAmmount;
 852          int    thisUid;
 853
 854         // Parse arguments
 855         if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
 856                 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
 857                 return ;
 858         }
 859
 860         if( !Client->bIsAuthed ) {
 861                 sendf(Client->Socket, "401 Not Authenticated\n");
 862                 return ;
 863         }
 864
 865         // Parse ammount
 866         iAmmount = atoi(ammount);
 867         if( iAmmount <= 0 ) {
 868                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 869                 return ;
 870         }
 871
 872         // Handle effective users
 873         if( Client->EffectiveUID != -1 ) {
 874                 thisUid = Client->EffectiveUID;
 875         }
 876         else {
 877                 thisUid = Client->UID;
 878         }
 879
 880         // Do give
 881         switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
 882         {
 883         case 0:
 884                 sendf(Client->Socket, "200 Give OK\n");
 885                 return ;
 886         case 2:
 887                 sendf(Client->Socket, "402 Poor You\n");
 888                 return ;
 889         default:
 890                 sendf(Client->Socket, "500 Unknown error\n");
 891                 return ;
 892         }
 893 }
 894
 895 void Server_Cmd_ADD(tClient *Client, char *Args)
 896 {
 897         char    *user, *ammount, *reason;
 898          int    uid, iAmmount;
 899
 900         // Parse arguments
 901         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 902                 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
 903                 return ;
 904         }
 905
 906         if( !Client->bIsAuthed ) {
 907                 sendf(Client->Socket, "401 Not Authenticated\n");
 908                 return ;
 909         }
 910
 911         // Check user permissions
 912         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
 913                 sendf(Client->Socket, "403 Not in coke\n");
 914                 return ;
 915         }
 916
 917         #if HACK_NO_REFUNDS
 918         if( strstr(reason, "refund") != NULL || strstr(reason, "misdispense") != NULL )
 919         {
 920                 sendf(Client->Socket, "499 Don't use `dispense acct` for refunds, use `dispense refund` (and `dispense -G` to get item IDs)\n");
 921                 return ;
 922         }
 923         #endif
 924
 925         // Get recipient
 926         uid = Bank_GetAcctByName(user, 0);
 927         if( uid == -1 ) {
 928                 sendf(Client->Socket, "404 Invalid user\n");
 929                 return ;
 930         }
 931
 932         // You can't alter an internal account
 933         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
 934         {
 935                 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 936                         sendf(Client->Socket, "404 Invalid user\n");
 937                         return ;
 938                 }
 939                 // TODO: Maybe disallow changes to disabled?
 940         }
 941
 942         // Parse ammount
 943         iAmmount = atoi(ammount);
 944         if( iAmmount == 0 && ammount[0] != '0' ) {
 945                 sendf(Client->Socket, "407 Invalid Argument\n");
 946                 return ;
 947         }
 948
 949         // Do give
 950         switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
 951         {
 952         case 0:
 953                 sendf(Client->Socket, "200 Add OK\n");
 954                 return ;
 955         case 2:
 956                 sendf(Client->Socket, "402 Poor Guy\n");
 957                 return ;
 958         default:
 959                 sendf(Client->Socket, "500 Unknown error\n");
 960                 return ;
 961         }
 962 }
 963
 964 void Server_Cmd_SET(tClient *Client, char *Args)
 965 {
 966         char    *user, *ammount, *reason;
 967          int    uid, iAmmount;
 968
 969         // Parse arguments
 970         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 971                 sendf(Client->Socket, "407 SET takes 3 arguments\n");
 972                 return ;
 973         }
 974
 975         if( !Client->bIsAuthed ) {
 976                 sendf(Client->Socket, "401 Not Authenticated\n");
 977                 return ;
 978         }
 979
 980         // Check user permissions
 981         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN)  ) {
 982                 sendf(Client->Socket, "403 Not an admin\n");
 983                 return ;
 984         }
 985
 986         // Get recipient
 987         uid = Bank_GetAcctByName(user, 0);
 988         if( uid == -1 ) {
 989                 sendf(Client->Socket, "404 Invalid user\n");
 990                 return ;
 991         }
 992
 993         // Parse ammount
 994         iAmmount = atoi(ammount);
 995         if( iAmmount == 0 && ammount[0] != '0' ) {
 996                 sendf(Client->Socket, "407 Invalid Argument\n");
 997                 return ;
 998         }
 999
1000         // Do give
1001         switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
1002         {
1003         case 0:
1004                 sendf(Client->Socket, "200 Add OK\n");
1005                 return ;
1006         case 2:
1007                 sendf(Client->Socket, "402 Poor Guy\n");
1008                 return ;
1009         default:
1010                 sendf(Client->Socket, "500 Unknown error\n");
1011                 return ;
1012         }
1013 }
1014
1015 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
1016 {
1017          int    i, numRet = 0;
1018         tAcctIterator   *it;
1019          int    maxBal = INT_MAX, minBal = INT_MIN;
1020          int    flagMask = 0, flagVal = 0;
1021          int    sort = BANK_ITFLAG_SORT_NAME;
1022         time_t  lastSeenAfter=0, lastSeenBefore=0;
1023
1024          int    flags;  // Iterator flags
1025          int    balValue;       // Balance value for iterator
1026         time_t  timeValue;      // Time value for iterator
1027
1028         // Parse arguments
1029         if( Args && strlen(Args) )
1030         {
1031                 char    *space = Args, *type, *val;
1032                 do
1033                 {
1034                         type = space;
1035                         while(*type == ' ')     type ++;
1036                         // Get next space
1037                         space = strchr(space, ' ');
1038                         if(space)       *space = '\0';
1039
1040                         // Get type
1041                         val = strchr(type, ':');
1042                         if( val ) {
1043                                 *val = '\0';
1044                                 val ++;
1045
1046                                 // Types
1047                                 // - Minium Balance
1048                                 if( strcmp(type, "min_balance") == 0 ) {
1049                                         minBal = atoi(val);
1050                                 }
1051                                 // - Maximum Balance
1052                                 else if( strcmp(type, "max_balance") == 0 ) {
1053                                         maxBal = atoi(val);
1054                                 }
1055                                 // - Flags
1056                                 else if( strcmp(type, "flags") == 0 ) {
1057                                         if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
1058                                                 return ;
1059                                 }
1060                                 // - Last seen before timestamp
1061                                 else if( strcmp(type, "last_seen_before") == 0 ) {
1062                                         lastSeenAfter = atoll(val);
1063                                 }
1064                                 // - Last seen after timestamp
1065                                 else if( strcmp(type, "last_seen_after") == 0 ) {
1066                                         lastSeenAfter = atoll(val);
1067                                 }
1068                                 // - Sorting
1069                                 else if( strcmp(type, "sort") == 0 ) {
1070                                         char    *dash = strchr(val, '-');
1071                                         if( dash ) {
1072                                                 *dash = '\0';
1073                                                 dash ++;
1074                                         }
1075                                         if( strcmp(val, "name") == 0 ) {
1076                                                 sort = BANK_ITFLAG_SORT_NAME;
1077                                         }
1078                                         else if( strcmp(val, "balance") == 0 ) {
1079                                                 sort = BANK_ITFLAG_SORT_BAL;
1080                                         }
1081                                         else if( strcmp(val, "lastseen") == 0 ) {
1082                                                 sort = BANK_ITFLAG_SORT_LASTSEEN;
1083                                         }
1084                                         else {
1085                                                 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1086                                                 return ;
1087                                         }
1088                                         // Handle sort direction
1089                                         if( dash ) {
1090                                                 if( strcmp(dash, "desc") == 0 ) {
1091                                                         sort |= BANK_ITFLAG_REVSORT;
1092                                                 }
1093                                                 else {
1094                                                         sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1095                                                         return ;
1096                                                 }
1097                                                 dash[-1] = '-';
1098                                         }
1099                                 }
1100                                 else {
1101                                         sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1102                                         return ;
1103                                 }
1104
1105                                 val[-1] = ':';
1106                         }
1107                         else {
1108                                 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1109                                 return ;
1110                         }
1111
1112                         // Eat whitespace
1113                         if( space ) {
1114                                 *space = ' ';   // Repair (to be nice)
1115                                 space ++;
1116                                 while(*space == ' ')    space ++;
1117                         }
1118                 }       while(space);
1119         }
1120
1121         // Create iterator
1122         if( maxBal != INT_MAX ) {
1123                 flags = sort|BANK_ITFLAG_MAXBALANCE;
1124                 balValue = maxBal;
1125         }
1126         else if( minBal != INT_MIN ) {
1127                 flags = sort|BANK_ITFLAG_MINBALANCE;
1128                 balValue = minBal;
1129         }
1130         else {
1131                 flags = sort;
1132                 balValue = 0;
1133         }
1134         if( lastSeenBefore ) {
1135                 timeValue = lastSeenBefore;
1136                 flags |= BANK_ITFLAG_SEENBEFORE;
1137         }
1138         else if( lastSeenAfter ) {
1139                 timeValue = lastSeenAfter;
1140                 flags |= BANK_ITFLAG_SEENAFTER;
1141         }
1142         else {
1143                 timeValue = 0;
1144         }
1145         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1146
1147         // Get return number
1148         while( (i = Bank_IteratorNext(it)) != -1 )
1149         {
1150                 int bal = Bank_GetBalance(i);
1151
1152                 if( bal == INT_MIN )    continue;
1153
1154                 if( bal < minBal )      continue;
1155                 if( bal > maxBal )      continue;
1156
1157                 numRet ++;
1158         }
1159
1160         Bank_DelIterator(it);
1161
1162         // Send count
1163         sendf(Client->Socket, "201 Users %i\n", numRet);
1164
1165
1166         // Create iterator
1167         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1168
1169         while( (i = Bank_IteratorNext(it)) != -1 )
1170         {
1171                 int bal = Bank_GetBalance(i);
1172
1173                 if( bal == INT_MIN )    continue;
1174
1175                 if( bal < minBal )      continue;
1176                 if( bal > maxBal )      continue;
1177
1178                 _SendUserInfo(Client, i);
1179         }
1180
1181         Bank_DelIterator(it);
1182
1183         sendf(Client->Socket, "200 List End\n");
1184 }
1185
1186 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1187 {
1188          int    uid;
1189         char    *user;
1190
1191         // Parse arguments
1192         if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1193                 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1194                 return ;
1195         }
1196
1197         if( giDebugLevel )      Debug(Client, "User Info '%s'", user);
1198
1199         // Get recipient
1200         uid = Bank_GetAcctByName(user, 0);
1201
1202         if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1203         if( uid == -1 ) {
1204                 sendf(Client->Socket, "404 Invalid user\n");
1205                 return ;
1206         }
1207
1208         _SendUserInfo(Client, uid);
1209 }
1210
1211 void _SendUserInfo(tClient *Client, int UserID)
1212 {
1213         char    *type, *disabled="", *door="";
1214          int    flags = Bank_GetFlags(UserID);
1215
1216         if( flags & USER_FLAG_INTERNAL ) {
1217                 type = "internal";
1218         }
1219         else if( flags & USER_FLAG_COKE ) {
1220                 if( flags & USER_FLAG_ADMIN )
1221                         type = "coke,admin";
1222                 else
1223                         type = "coke";
1224         }
1225         else if( flags & USER_FLAG_ADMIN ) {
1226                 type = "admin";
1227         }
1228         else {
1229                 type = "user";
1230         }
1231
1232         if( flags & USER_FLAG_DISABLED )
1233                 disabled = ",disabled";
1234         if( flags & USER_FLAG_DOORGROUP )
1235                 door = ",door";
1236
1237         // TODO: User flags/type
1238         sendf(
1239                 Client->Socket, "202 User %s %i %s%s%s\n",
1240                 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1241                 type, disabled, door
1242                 );
1243 }
1244
1245 void Server_Cmd_USERADD(tClient *Client, char *Args)
1246 {
1247         char    *username;
1248
1249         // Parse arguments
1250         if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1251                 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1252                 return ;
1253         }
1254
1255         // Check authentication
1256         if( !Client->bIsAuthed ) {
1257                 sendf(Client->Socket, "401 Not Authenticated\n");
1258                 return ;
1259         }
1260
1261         // Check permissions
1262         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1263                 sendf(Client->Socket, "403 Not a coke admin\n");
1264                 return ;
1265         }
1266
1267         // Try to create user
1268         if( Bank_CreateAcct(username) == -1 ) {
1269                 sendf(Client->Socket, "404 User exists\n");
1270                 return ;
1271         }
1272
1273         {
1274                 char    *thisName = Bank_GetAcctName(Client->UID);
1275                 Log_Info("Account '%s' created by '%s'", username, thisName);
1276                 free(thisName);
1277         }
1278
1279         sendf(Client->Socket, "200 User Added\n");
1280 }
1281
1282 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1283 {
1284         char    *username, *flags, *reason=NULL;
1285          int    mask=0, value=0;
1286          int    uid;
1287
1288         // Parse arguments
1289         if( Server_int_ParseArgs(1, Args, &username, &flags, &reason, NULL) ) {
1290                 if( !flags ) {
1291                         sendf(Client->Socket, "407 USER_FLAGS takes at least 2 arguments\n");
1292                         return ;
1293                 }
1294                 reason = "";
1295         }
1296
1297         // Check authentication
1298         if( !Client->bIsAuthed ) {
1299                 sendf(Client->Socket, "401 Not Authenticated\n");
1300                 return ;
1301         }
1302
1303         // Check permissions
1304         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1305                 sendf(Client->Socket, "403 Not a coke admin\n");
1306                 return ;
1307         }
1308
1309         // Get UID
1310         uid = Bank_GetAcctByName(username, 0);
1311         if( uid == -1 ) {
1312                 sendf(Client->Socket, "404 User '%s' not found\n", username);
1313                 return ;
1314         }
1315
1316         // Parse flags
1317         if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1318                 return ;
1319
1320         if( giDebugLevel )
1321                 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1322                         uid, username, mask, value);
1323
1324         // Apply flags
1325         Bank_SetFlags(uid, mask, value);
1326
1327         // Log the change
1328         Log_Info("Updated '%s' with flag set '%s' - Reason: %s",
1329                 username, flags, reason);
1330
1331         // Return OK
1332         sendf(Client->Socket, "200 User Updated\n");
1333 }
1334
1335 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args)
1336 {
1337         char    *itemname, *price_str, *description;
1338          int    price;
1339         tItem   *item;
1340
1341         if( Server_int_ParseArgs(1, Args, &itemname, &price_str, &description, NULL) ) {
1342                 sendf(Client->Socket, "407 UPDATE_ITEM takes 3 arguments\n");
1343                 return ;
1344         }
1345
1346         if( !Client->bIsAuthed ) {
1347                 sendf(Client->Socket, "401 Not Authenticated\n");
1348                 return ;
1349         }
1350
1351         // Check user permissions
1352         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
1353                 sendf(Client->Socket, "403 Not in coke\n");
1354                 return ;
1355         }
1356
1357         item = _GetItemFromString(itemname);
1358         if( !item ) {
1359                 // TODO: Create item?
1360                 sendf(Client->Socket, "406 Bad Item ID\n");
1361                 return ;
1362         }
1363
1364         price = atoi(price_str);
1365         if( price <= 0 && price_str[0] != '0' ) {
1366                 sendf(Client->Socket, "407 Invalid price set\n");
1367         }
1368
1369         switch( DispenseUpdateItem( Client->UID, item, description, price ) )
1370         {
1371         case 0:
1372                 // Return OK
1373                 sendf(Client->Socket, "200 Item updated\n");
1374                 break;
1375         default:
1376                 break;
1377         }
1378 }
1379
1380 // --- INTERNAL HELPERS ---
1381 void Debug(tClient *Client, const char *Format, ...)
1382 {
1383         va_list args;
1384         //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1385         printf("[%i] ", Client->ID);
1386         va_start(args, Format);
1387         vprintf(Format, args);
1388         va_end(args);
1389         printf("\n");
1390 }
1391
1392 int sendf(int Socket, const char *Format, ...)
1393 {
1394         va_list args;
1395          int    len;
1396
1397         va_start(args, Format);
1398         len = vsnprintf(NULL, 0, Format, args);
1399         va_end(args);
1400
1401         {
1402                 char    buf[len+1];
1403                 va_start(args, Format);
1404                 vsnprintf(buf, len+1, Format, args);
1405                 va_end(args);
1406
1407                 #if DEBUG_TRACE_CLIENT
1408                 printf("sendf: %s", buf);
1409                 #endif
1410
1411                 return send(Socket, buf, len, 0);
1412         }
1413 }
1414
1415 // Takes a series of char *'s in
1416 /**
1417  * \brief Parse space-separated entries into
1418  */
1419 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1420 {
1421         va_list args;
1422         char    savedChar;
1423         char    **dest;
1424         va_start(args, ArgStr);
1425
1426         // Check for null
1427         if( !ArgStr )
1428         {
1429                 while( (dest = va_arg(args, char **)) )
1430                         *dest = NULL;
1431                 va_end(args);
1432                 return 1;
1433         }
1434
1435         savedChar = *ArgStr;
1436
1437         while( (dest = va_arg(args, char **)) )
1438         {
1439                 // Trim leading spaces
1440                 while( *ArgStr == ' ' || *ArgStr == '\t' )
1441                         ArgStr ++;
1442
1443                 // ... oops, not enough arguments
1444                 if( *ArgStr == '\0' )
1445                 {
1446                         // NULL unset arguments
1447                         do {
1448                                 *dest = NULL;
1449                         }       while( (dest = va_arg(args, char **)) );
1450                 va_end(args);
1451                         return -1;
1452                 }
1453
1454                 if( *ArgStr == '"' )
1455                 {
1456                         ArgStr ++;
1457                         *dest = ArgStr;
1458                         // Read until quote
1459                         while( *ArgStr && *ArgStr != '"' )
1460                                 ArgStr ++;
1461                 }
1462                 else
1463                 {
1464                         // Set destination
1465                         *dest = ArgStr;
1466                         // Read until a space
1467                         while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1468                                 ArgStr ++;
1469                 }
1470                 savedChar = *ArgStr;    // savedChar is used to un-mangle the last string
1471                 *ArgStr = '\0';
1472                 ArgStr ++;
1473         }
1474         va_end(args);
1475
1476         // Oops, extra arguments, and greedy not set
1477         if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1478                 return -1;
1479         }
1480
1481         // Un-mangle last
1482         if(bUseLongLast) {
1483                 ArgStr --;
1484                 *ArgStr = savedChar;
1485         }
1486
1487         return 0;       // Success!
1488 }
1489
1490 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1491 {
1492         struct {
1493                 const char      *Name;
1494                  int    Mask;
1495                  int    Value;
1496         }       cFLAGS[] = {
1497                  {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1498                 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1499                 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1500                 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1501                 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1502         };
1503         const int       ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1504
1505         char    *space;
1506
1507         *Mask = 0;
1508         *Value = 0;
1509
1510         do {
1511                  int    bRemove = 0;
1512                  int    i;
1513                  int    len;
1514
1515                 while( *Str == ' ' )    Str ++; // Eat whitespace
1516                 space = strchr(Str, ',');       // Find the end of the flag
1517                 if(space)
1518                         len = space - Str;
1519                 else
1520                         len = strlen(Str);
1521
1522                 // Check for inversion/removal
1523                 if( *Str == '!' || *Str == '-' ) {
1524                         bRemove = 1;
1525                         Str ++;
1526                 }
1527                 else if( *Str == '+' ) {
1528                         Str ++;
1529                 }
1530
1531                 // Check flag values
1532                 for( i = 0; i < ciNumFlags; i ++ )
1533                 {
1534                         if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1535                                 *Mask |= cFLAGS[i].Mask;
1536                                 *Value &= ~cFLAGS[i].Mask;
1537                                 if( !bRemove )
1538                                         *Value |= cFLAGS[i].Value;
1539                                 break;
1540                         }
1541                 }
1542
1543                 // Error check
1544                 if( i == ciNumFlags ) {
1545                         char    val[len+1];
1546                         strncpy(val, Str, len+1);
1547                         sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);
1548                         return -1;
1549                 }
1550
1551                 Str = space + 1;
1552         } while(space);
1553
1554         return 0;
1555 }