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 pid = fork();
 156                 if( pid == -1 ) {
 157                         fprintf(stderr, "ERROR: Unable to fork\n");
 158                         perror("fork background");
 159                         exit(-1);
 160                 }
 161                 if( pid != 0 ) {
 162                         // Parent, quit
 163                         exit(0);
 164                 }
 165                 // In child
 166                 // - Sort out stdin/stdout
 167                 #if 0
 168                 dup2( open("/dev/null", O_RDONLY, 0644), STDIN_FILENO );
 169                 dup2( open(gsServer_LogFile, O_CREAT|O_APPEND, 0644), STDOUT_FILENO );
 170                 dup2( open(gsServer_ErrorLog, O_CREAT|O_APPEND, 0644), STDERR_FILENO );
 171                 #else
 172                 freopen("/dev/null", "r", stdin);
 173                 freopen(gsServer_LogFile, "a", stdout);
 174                 freopen(gsServer_ErrorLog, "a", stderr);
 175                 #endif
 176         }
 177
 178         // Start the helper thread
 179         StartPeriodicThread();
 180
 181         // Listen
 182         if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
 183                 fprintf(stderr, "ERROR: Unable to listen to socket\n");
 184                 perror("Listen");
 185                 return ;
 186         }
 187
 188         printf("Listening on 0.0.0.0:%i\n", giServer_Port);
 189
 190         // write pidfile
 191         {
 192                 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
 193                 if( fp ) {
 194                         fprintf(fp, "%i", getpid());
 195                         fclose(fp);
 196                 }
 197         }
 198
 199         for(;;)
 200         {
 201                 uint    len = sizeof(client_addr);
 202                  int    bTrusted = 0;
 203
 204                 // Accept a connection
 205                 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
 206                 if(client_socket < 0) {
 207                         fprintf(stderr, "ERROR: Unable to accept client connection\n");
 208                         return ;
 209                 }
 210
 211                 // Set a timeout on the user conneciton
 212                 {
 213                         struct timeval tv;
 214                         tv.tv_sec = CLIENT_TIMEOUT;
 215                         tv.tv_usec = 0;
 216                         if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
 217                         {
 218                                 perror("setsockopt");
 219                                 return ;
 220                         }
 221                 }
 222
 223                 // Debug: Print the connection string
 224                 if(giDebugLevel >= 2) {
 225                         char    ipstr[INET_ADDRSTRLEN];
 226                         inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
 227                         printf("Client connection from %s:%i\n",
 228                                 ipstr, ntohs(client_addr.sin_port));
 229                 }
 230
 231                 // Doesn't matter what, localhost is trusted
 232                 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
 233                         bTrusted = 1;
 234
 235                 // Trusted Connections
 236                 if( ntohs(client_addr.sin_port) < 1024 )
 237                 {
 238                         // TODO: Make this runtime configurable
 239                         switch( ntohl( client_addr.sin_addr.s_addr ) )
 240                         {
 241                         case 0x7F000001:        // 127.0.0.1    localhost
 242                 //      case 0x825F0D00:        // 130.95.13.0
 243                         case 0x825F0D04:        // 130.95.13.4  merlo
 244                 //      case 0x825F0D05:        // 130.95.13.5  heathred (MR)
 245                         case 0x825F0D07:        // 130.95.13.7  motsugo
 246                         case 0x825F0D11:        // 130.95.13.17 mermaid
 247                         case 0x825F0D12:        // 130.95.13.18 mussel
 248                         case 0x825F0D17:        // 130.95.13.23 martello
 249                         case 0x825F0D2A:        // 130.95.13.42 meersau
 250                 //      case 0x825F0D42:        // 130.95.13.66 heathred (Clubroom)
 251                                 bTrusted = 1;
 252                                 break;
 253                         default:
 254                                 break;
 255                         }
 256                 }
 257
 258                 // TODO: Multithread this?
 259                 Server_HandleClient(client_socket, bTrusted);
 260
 261                 close(client_socket);
 262         }
 263 }
 264
 265 void Server_Cleanup(void)
 266 {
 267         printf("\nClose(%i)\n", giServer_Socket);
 268         close(giServer_Socket);
 269         unlink("/var/run/dispsrv.pid");
 270 }
 271
 272 /**
 273  * \brief Reads from a client socket and parses the command strings
 274  * \param Socket        Client socket number/handle
 275  * \param bTrusted      Is the client trusted?
 276  */
 277 void Server_HandleClient(int Socket, int bTrusted)
 278 {
 279         char    inbuf[INPUT_BUFFER_SIZE];
 280         char    *buf = inbuf;
 281          int    remspace = INPUT_BUFFER_SIZE-1;
 282          int    bytes = -1;
 283         tClient clientInfo;
 284
 285         memset(&clientInfo, 0, sizeof(clientInfo));
 286
 287         // Initialise Client info
 288         clientInfo.Socket = Socket;
 289         clientInfo.ID = giServer_NextClientID ++;
 290         clientInfo.bIsTrusted = bTrusted;
 291         clientInfo.EffectiveUID = -1;
 292
 293         // Read from client
 294         /*
 295          * Notes:
 296          * - The `buf` and `remspace` variables allow a line to span several
 297          *   calls to recv(), if a line is not completed in one recv() call
 298          *   it is saved to the beginning of `inbuf` and `buf` is updated to
 299          *   the end of it.
 300          */
 301         // TODO: Use select() instead (to give a timeout)
 302         while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
 303         {
 304                 char    *eol, *start;
 305                 buf[bytes] = '\0';      // Allow us to use stdlib string functions on it
 306
 307                 // Split by lines
 308                 start = inbuf;
 309                 while( (eol = strchr(start, '\n')) )
 310                 {
 311                         *eol = '\0';
 312
 313                         Server_ParseClientCommand(&clientInfo, start);
 314
 315                         start = eol + 1;
 316                 }
 317
 318                 // Check if there was an incomplete line
 319                 if( *start != '\0' ) {
 320                          int    tailBytes = bytes - (start-buf);
 321                         // Roll back in buffer
 322                         memcpy(inbuf, start, tailBytes);
 323                         remspace -= tailBytes;
 324                         if(remspace == 0) {
 325                                 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
 326                                 buf = inbuf;
 327                                 remspace = INPUT_BUFFER_SIZE - 1;
 328                         }
 329                 }
 330                 else {
 331                         buf = inbuf;
 332                         remspace = INPUT_BUFFER_SIZE - 1;
 333                 }
 334         }
 335
 336         // Check for errors
 337         if( bytes < 0 ) {
 338                 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
 339                 return ;
 340         }
 341
 342         if(giDebugLevel >= 2) {
 343                 printf("Client %i: Disconnected\n", clientInfo.ID);
 344         }
 345 }
 346
 347 /**
 348  * \brief Parses a client command and calls the required helper function
 349  * \param Client        Pointer to client state structure
 350  * \param CommandString Command from client (single line of the command)
 351  * \return Heap String to return to the client
 352  */
 353 void Server_ParseClientCommand(tClient *Client, char *CommandString)
 354 {
 355         char    *command, *args;
 356          int    i;
 357
 358         if( giDebugLevel >= 2 )
 359                 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
 360
 361         if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
 362         {
 363                 if( command == NULL )   return ;
 364                 // Is this an error? (just ignore for now)
 365         }
 366
 367
 368         // Find command
 369         for( i = 0; i < NUM_COMMANDS; i++ )
 370         {
 371                 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
 372                         if( giDebugLevel >= 2 )
 373                                 Debug(Client, "CMD %s - \"%s\"", command, args);
 374                         gaServer_Commands[i].Function(Client, args);
 375                         return ;
 376                 }
 377         }
 378
 379         sendf(Client->Socket, "400 Unknown Command\n");
 380 }
 381
 382 // ---
 383 // Commands
 384 // ---
 385 /**
 386  * \brief Set client username
 387  *
 388  * Usage: USER <username>
 389  */
 390 void Server_Cmd_USER(tClient *Client, char *Args)
 391 {
 392         char    *username;
 393
 394         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 395         {
 396                 sendf(Client->Socket, "407 USER takes 1 argument\n");
 397                 return ;
 398         }
 399
 400         // Debug!
 401         if( giDebugLevel )
 402                 Debug(Client, "Authenticating as '%s'", username);
 403
 404         // Save username
 405         if(Client->Username)
 406                 free(Client->Username);
 407         Client->Username = strdup(username);
 408
 409         #if USE_SALT
 410         // Create a salt (that changes if the username is changed)
 411         // Yes, I know, I'm a little paranoid, but who isn't?
 412         Client->Salt[0] = 0x21 + (rand()&0x3F);
 413         Client->Salt[1] = 0x21 + (rand()&0x3F);
 414         Client->Salt[2] = 0x21 + (rand()&0x3F);
 415         Client->Salt[3] = 0x21 + (rand()&0x3F);
 416         Client->Salt[4] = 0x21 + (rand()&0x3F);
 417         Client->Salt[5] = 0x21 + (rand()&0x3F);
 418         Client->Salt[6] = 0x21 + (rand()&0x3F);
 419         Client->Salt[7] = 0x21 + (rand()&0x3F);
 420
 421         // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
 422         sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
 423         #else
 424         sendf(Client->Socket, "100 User Set\n");
 425         #endif
 426 }
 427
 428 /**
 429  * \brief Authenticate as a user
 430  *
 431  * Usage: PASS <hash>
 432  */
 433 void Server_Cmd_PASS(tClient *Client, char *Args)
 434 {
 435         char    *passhash;
 436          int    flags;
 437
 438         if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
 439         {
 440                 sendf(Client->Socket, "407 PASS takes 1 argument\n");
 441                 return ;
 442         }
 443
 444         // Pass on to cokebank
 445         Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
 446
 447         if( Client->UID == -1 ) {
 448                 sendf(Client->Socket, "401 Auth Failure\n");
 449                 return ;
 450         }
 451
 452         flags = Bank_GetFlags(Client->UID);
 453         if( flags & USER_FLAG_DISABLED ) {
 454                 Client->UID = -1;
 455                 sendf(Client->Socket, "403 Account Disabled\n");
 456                 return ;
 457         }
 458         if( flags & USER_FLAG_INTERNAL ) {
 459                 Client->UID = -1;
 460                 sendf(Client->Socket, "403 Internal account\n");
 461                 return ;
 462         }
 463
 464         Client->bIsAuthed = 1;
 465         sendf(Client->Socket, "200 Auth OK\n");
 466 }
 467
 468 /**
 469  * \brief Authenticate as a user without a password
 470  *
 471  * Usage: AUTOAUTH <user>
 472  */
 473 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
 474 {
 475         char    *username;
 476          int    userflags;
 477
 478         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 479         {
 480                 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
 481                 return ;
 482         }
 483
 484         // Check if trusted
 485         if( !Client->bIsTrusted ) {
 486                 if(giDebugLevel)
 487                         Debug(Client, "Untrusted client attempting to AUTOAUTH");
 488                 sendf(Client->Socket, "401 Untrusted\n");
 489                 return ;
 490         }
 491
 492         // Get UID
 493         Client->UID = Bank_GetAcctByName( username, 0 );
 494         if( Client->UID < 0 ) {
 495                 if(giDebugLevel)
 496                         Debug(Client, "Unknown user '%s'", username);
 497                 sendf(Client->Socket, "403 Auth Failure\n");
 498                 return ;
 499         }
 500
 501         userflags = Bank_GetFlags(Client->UID);
 502         // You can't be an internal account
 503         if( userflags & USER_FLAG_INTERNAL ) {
 504                 if(giDebugLevel)
 505                         Debug(Client, "Autoauth as '%s', not allowed", username);
 506                 Client->UID = -1;
 507                 sendf(Client->Socket, "403 Account is internal\n");
 508                 return ;
 509         }
 510
 511         // Disabled accounts
 512         if( userflags & USER_FLAG_DISABLED ) {
 513                 Client->UID = -1;
 514                 sendf(Client->Socket, "403 Account disabled\n");
 515                 return ;
 516         }
 517
 518         // Save username
 519         if(Client->Username)
 520                 free(Client->Username);
 521         Client->Username = strdup(username);
 522
 523         Client->bIsAuthed = 1;
 524
 525         if(giDebugLevel)
 526                 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
 527
 528         sendf(Client->Socket, "200 Auth OK\n");
 529 }
 530
 531 /**
 532  * \brief Set effective user
 533  */
 534 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
 535 {
 536         char    *username;
 537          int    eUserFlags, userFlags;
 538
 539         if( Server_int_ParseArgs(0, Args, &username, NULL) )
 540         {
 541                 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
 542                 return ;
 543         }
 544
 545         if( !strlen(Args) ) {
 546                 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
 547                 return ;
 548         }
 549
 550         // Check authentication
 551         if( !Client->bIsAuthed ) {
 552                 sendf(Client->Socket, "401 Not Authenticated\n");
 553                 return ;
 554         }
 555
 556         // Check user permissions
 557         userFlags = Bank_GetFlags(Client->UID);
 558         if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
 559                 sendf(Client->Socket, "403 Not in coke\n");
 560                 return ;
 561         }
 562
 563         // Set id
 564         Client->EffectiveUID = Bank_GetAcctByName(username, 0);
 565         if( Client->EffectiveUID == -1 ) {
 566                 sendf(Client->Socket, "404 User not found\n");
 567                 return ;
 568         }
 569
 570         // You can't be an internal account
 571         if( !(userFlags & USER_FLAG_ADMIN) )
 572         {
 573                 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
 574                 if( eUserFlags & USER_FLAG_INTERNAL ) {
 575                         Client->EffectiveUID = -1;
 576                         sendf(Client->Socket, "404 User not found\n");
 577                         return ;
 578                 }
 579                 // Disabled only avaliable to admins
 580                 if( eUserFlags & USER_FLAG_DISABLED ) {
 581                         Client->EffectiveUID = -1;
 582                         sendf(Client->Socket, "403 Account disabled\n");
 583                         return ;
 584                 }
 585         }
 586
 587         sendf(Client->Socket, "200 User set\n");
 588 }
 589
 590 /**
 591  * \brief Send an item status to the client
 592  * \param Client        Who to?
 593  * \param Item  Item to send
 594  */
 595 void Server_int_SendItem(tClient *Client, tItem *Item)
 596 {
 597         char    *status = "avail";
 598
 599         if( Item->Handler->CanDispense )
 600         {
 601                 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
 602                 {
 603                 case  0:        status = "avail";       break;
 604                 case  1:        status = "sold";        break;
 605                 default:
 606                 case -1:        status = "error";       break;
 607                 }
 608         }
 609
 610         // KNOWN HACK: Naming a slot 'dead' disables it
 611         if( strcmp(Item->Name, "dead") == 0 )
 612                 status = "sold";        // Another status?
 613
 614         sendf(Client->Socket,
 615                 "202 Item %s:%i %s %i %s\n",
 616                 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
 617                 );
 618 }
 619
 620 /**
 621  * \brief Enumerate the items that the server knows about
 622  */
 623 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
 624 {
 625          int    i, count;
 626
 627         if( Args != NULL && strlen(Args) ) {
 628                 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
 629                 return ;
 630         }
 631
 632         // Count shown items
 633         count = 0;
 634         for( i = 0; i < giNumItems; i ++ ) {
 635                 if( gaItems[i].bHidden )        continue;
 636                 count ++;
 637         }
 638
 639         sendf(Client->Socket, "201 Items %i\n", count);
 640
 641         for( i = 0; i < giNumItems; i ++ ) {
 642                 if( gaItems[i].bHidden )        continue;
 643                 Server_int_SendItem( Client, &gaItems[i] );
 644         }
 645
 646         sendf(Client->Socket, "200 List end\n");
 647 }
 648
 649 tItem *_GetItemFromString(char *String)
 650 {
 651         tHandler        *handler;
 652         char    *type = String;
 653         char    *colon = strchr(String, ':');
 654          int    num, i;
 655
 656         if( !colon ) {
 657                 return NULL;
 658         }
 659
 660         num = atoi(colon+1);
 661         *colon = '\0';
 662
 663         // Find handler
 664         handler = NULL;
 665         for( i = 0; i < giNumHandlers; i ++ )
 666         {
 667                 if( strcmp(gaHandlers[i]->Name, type) == 0) {
 668                         handler = gaHandlers[i];
 669                         break;
 670                 }
 671         }
 672         if( !handler ) {
 673                 return NULL;
 674         }
 675
 676         // Find item
 677         for( i = 0; i < giNumItems; i ++ )
 678         {
 679                 if( gaItems[i].Handler != handler )     continue;
 680                 if( gaItems[i].ID != num )      continue;
 681                 return &gaItems[i];
 682         }
 683         return NULL;
 684 }
 685
 686 /**
 687  * \brief Fetch information on a specific item
 688  */
 689 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
 690 {
 691         tItem   *item;
 692         char    *itemname;
 693
 694         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 695                 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
 696                 return ;
 697         }
 698         item = _GetItemFromString(Args);
 699
 700         if( !item ) {
 701                 sendf(Client->Socket, "406 Bad Item ID\n");
 702                 return ;
 703         }
 704
 705         Server_int_SendItem( Client, item );
 706 }
 707
 708 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
 709 {
 710         tItem   *item;
 711          int    ret;
 712          int    uid;
 713         char    *itemname;
 714
 715         if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
 716                 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
 717                 return ;
 718         }
 719
 720         if( !Client->bIsAuthed ) {
 721                 sendf(Client->Socket, "401 Not Authenticated\n");
 722                 return ;
 723         }
 724
 725         item = _GetItemFromString(itemname);
 726         if( !item ) {
 727                 sendf(Client->Socket, "406 Bad Item ID\n");
 728                 return ;
 729         }
 730
 731         if( Client->EffectiveUID != -1 ) {
 732                 uid = Client->EffectiveUID;
 733         }
 734         else {
 735                 uid = Client->UID;
 736         }
 737
 738         switch( ret = DispenseItem( Client->UID, uid, item ) )
 739         {
 740         case 0: sendf(Client->Socket, "200 Dispense OK\n");     return ;
 741         case 1: sendf(Client->Socket, "501 Unable to dispense\n");      return ;
 742         case 2: sendf(Client->Socket, "402 Poor You\n");        return ;
 743         default:
 744                 sendf(Client->Socket, "500 Dispense Error (%i)\n", ret);
 745                 return ;
 746         }
 747 }
 748
 749 void Server_Cmd_REFUND(tClient *Client, char *Args)
 750 {
 751         tItem   *item;
 752          int    uid, price_override = 0;
 753         char    *username, *itemname, *price_str;
 754
 755         if( Server_int_ParseArgs(0, Args, &username, &itemname, &price_str, NULL) ) {
 756                 if( !itemname || price_str ) {
 757                         sendf(Client->Socket, "407 REFUND takes 2 or 3 arguments\n");
 758                         return ;
 759                 }
 760         }
 761
 762         if( !Client->bIsAuthed ) {
 763                 sendf(Client->Socket, "401 Not Authenticated\n");
 764                 return ;
 765         }
 766
 767         // Check user permissions
 768         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
 769                 sendf(Client->Socket, "403 Not in coke\n");
 770                 return ;
 771         }
 772
 773         uid = Bank_GetAcctByName(username, 0);
 774         if( uid == -1 ) {
 775                 sendf(Client->Socket, "404 Unknown user\n");
 776                 return ;
 777         }
 778
 779         item = _GetItemFromString(itemname);
 780         if( !item ) {
 781                 sendf(Client->Socket, "406 Bad Item ID\n");
 782                 return ;
 783         }
 784
 785         if( price_str )
 786                 price_override = atoi(price_str);
 787
 788         switch( DispenseRefund( Client->UID, uid, item, price_override ) )
 789         {
 790         case 0: sendf(Client->Socket, "200 Item Refunded\n");   return ;
 791         default:
 792                 sendf(Client->Socket, "500 Dispense Error\n");
 793                 return;
 794         }
 795 }
 796
 797 void Server_Cmd_GIVE(tClient *Client, char *Args)
 798 {
 799         char    *recipient, *ammount, *reason;
 800          int    uid, iAmmount;
 801          int    thisUid;
 802
 803         // Parse arguments
 804         if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
 805                 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
 806                 return ;
 807         }
 808
 809         // Check for authed
 810         if( !Client->bIsAuthed ) {
 811                 sendf(Client->Socket, "401 Not Authenticated\n");
 812                 return ;
 813         }
 814
 815         // Get recipient
 816         uid = Bank_GetAcctByName(recipient, 0);
 817         if( uid == -1 ) {
 818                 sendf(Client->Socket, "404 Invalid target user\n");
 819                 return ;
 820         }
 821
 822         // You can't alter an internal account
 823 //      if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 824 //              sendf(Client->Socket, "404 Invalid target user\n");
 825 //              return ;
 826 //      }
 827
 828         // Parse ammount
 829         iAmmount = atoi(ammount);
 830         if( iAmmount <= 0 ) {
 831                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 832                 return ;
 833         }
 834
 835         if( Client->EffectiveUID != -1 ) {
 836                 thisUid = Client->EffectiveUID;
 837         }
 838         else {
 839                 thisUid = Client->UID;
 840         }
 841
 842         // Do give
 843         switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
 844         {
 845         case 0:
 846                 sendf(Client->Socket, "200 Give OK\n");
 847                 return ;
 848         case 2:
 849                 sendf(Client->Socket, "402 Poor You\n");
 850                 return ;
 851         default:
 852                 sendf(Client->Socket, "500 Unknown error\n");
 853                 return ;
 854         }
 855 }
 856
 857 void Server_Cmd_DONATE(tClient *Client, char *Args)
 858 {
 859         char    *ammount, *reason;
 860          int    iAmmount;
 861          int    thisUid;
 862
 863         // Parse arguments
 864         if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
 865                 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
 866                 return ;
 867         }
 868
 869         if( !Client->bIsAuthed ) {
 870                 sendf(Client->Socket, "401 Not Authenticated\n");
 871                 return ;
 872         }
 873
 874         // Parse ammount
 875         iAmmount = atoi(ammount);
 876         if( iAmmount <= 0 ) {
 877                 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
 878                 return ;
 879         }
 880
 881         // Handle effective users
 882         if( Client->EffectiveUID != -1 ) {
 883                 thisUid = Client->EffectiveUID;
 884         }
 885         else {
 886                 thisUid = Client->UID;
 887         }
 888
 889         // Do give
 890         switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
 891         {
 892         case 0:
 893                 sendf(Client->Socket, "200 Give OK\n");
 894                 return ;
 895         case 2:
 896                 sendf(Client->Socket, "402 Poor You\n");
 897                 return ;
 898         default:
 899                 sendf(Client->Socket, "500 Unknown error\n");
 900                 return ;
 901         }
 902 }
 903
 904 void Server_Cmd_ADD(tClient *Client, char *Args)
 905 {
 906         char    *user, *ammount, *reason;
 907          int    uid, iAmmount;
 908
 909         // Parse arguments
 910         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 911                 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
 912                 return ;
 913         }
 914
 915         if( !Client->bIsAuthed ) {
 916                 sendf(Client->Socket, "401 Not Authenticated\n");
 917                 return ;
 918         }
 919
 920         // Check user permissions
 921         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
 922                 sendf(Client->Socket, "403 Not in coke\n");
 923                 return ;
 924         }
 925
 926         #if !ROOT_CAN_ADD
 927         if( strcmp( Client->Username, "root" ) == 0 ) {
 928                 // Allow adding for new users
 929                 if( strcmp(reason, "treasurer: new user") != 0 ) {
 930                         sendf(Client->Socket, "403 Root may not add\n");
 931                         return ;
 932                 }
 933         }
 934         #endif
 935
 936         #if HACK_NO_REFUNDS
 937         if( strstr(reason, "refund") != NULL || strstr(reason, "misdispense") != NULL )
 938         {
 939                 sendf(Client->Socket, "499 Don't use `dispense acct` for refunds, use `dispense refund` (and `dispense -G` to get item IDs)\n");
 940                 return ;
 941         }
 942         #endif
 943
 944         // Get recipient
 945         uid = Bank_GetAcctByName(user, 0);
 946         if( uid == -1 ) {
 947                 sendf(Client->Socket, "404 Invalid user\n");
 948                 return ;
 949         }
 950
 951         // You can't alter an internal account
 952         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
 953         {
 954                 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
 955                         sendf(Client->Socket, "404 Invalid user\n");
 956                         return ;
 957                 }
 958                 // TODO: Maybe disallow changes to disabled?
 959         }
 960
 961         // Parse ammount
 962         iAmmount = atoi(ammount);
 963         if( iAmmount == 0 && ammount[0] != '0' ) {
 964                 sendf(Client->Socket, "407 Invalid Argument\n");
 965                 return ;
 966         }
 967
 968         // Do give
 969         switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
 970         {
 971         case 0:
 972                 sendf(Client->Socket, "200 Add OK\n");
 973                 return ;
 974         case 2:
 975                 sendf(Client->Socket, "402 Poor Guy\n");
 976                 return ;
 977         default:
 978                 sendf(Client->Socket, "500 Unknown error\n");
 979                 return ;
 980         }
 981 }
 982
 983 void Server_Cmd_SET(tClient *Client, char *Args)
 984 {
 985         char    *user, *ammount, *reason;
 986          int    uid, iAmmount;
 987
 988         // Parse arguments
 989         if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
 990                 sendf(Client->Socket, "407 SET takes 3 arguments\n");
 991                 return ;
 992         }
 993
 994         if( !Client->bIsAuthed ) {
 995                 sendf(Client->Socket, "401 Not Authenticated\n");
 996                 return ;
 997         }
 998
 999         // Check user permissions
1000         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN)  ) {
1001                 sendf(Client->Socket, "403 Not an admin\n");
1002                 return ;
1003         }
1004
1005         // Get recipient
1006         uid = Bank_GetAcctByName(user, 0);
1007         if( uid == -1 ) {
1008                 sendf(Client->Socket, "404 Invalid user\n");
1009                 return ;
1010         }
1011
1012         // Parse ammount
1013         iAmmount = atoi(ammount);
1014         if( iAmmount == 0 && ammount[0] != '0' ) {
1015                 sendf(Client->Socket, "407 Invalid Argument\n");
1016                 return ;
1017         }
1018
1019         // Do give
1020         switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
1021         {
1022         case 0:
1023                 sendf(Client->Socket, "200 Add OK\n");
1024                 return ;
1025         case 2:
1026                 sendf(Client->Socket, "402 Poor Guy\n");
1027                 return ;
1028         default:
1029                 sendf(Client->Socket, "500 Unknown error\n");
1030                 return ;
1031         }
1032 }
1033
1034 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
1035 {
1036          int    i, numRet = 0;
1037         tAcctIterator   *it;
1038          int    maxBal = INT_MAX, minBal = INT_MIN;
1039          int    flagMask = 0, flagVal = 0;
1040          int    sort = BANK_ITFLAG_SORT_NAME;
1041         time_t  lastSeenAfter=0, lastSeenBefore=0;
1042
1043          int    flags;  // Iterator flags
1044          int    balValue;       // Balance value for iterator
1045         time_t  timeValue;      // Time value for iterator
1046
1047         // Parse arguments
1048         if( Args && strlen(Args) )
1049         {
1050                 char    *space = Args, *type, *val;
1051                 do
1052                 {
1053                         type = space;
1054                         while(*type == ' ')     type ++;
1055                         // Get next space
1056                         space = strchr(space, ' ');
1057                         if(space)       *space = '\0';
1058
1059                         // Get type
1060                         val = strchr(type, ':');
1061                         if( val ) {
1062                                 *val = '\0';
1063                                 val ++;
1064
1065                                 // Types
1066                                 // - Minium Balance
1067                                 if( strcmp(type, "min_balance") == 0 ) {
1068                                         minBal = atoi(val);
1069                                 }
1070                                 // - Maximum Balance
1071                                 else if( strcmp(type, "max_balance") == 0 ) {
1072                                         maxBal = atoi(val);
1073                                 }
1074                                 // - Flags
1075                                 else if( strcmp(type, "flags") == 0 ) {
1076                                         if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
1077                                                 return ;
1078                                 }
1079                                 // - Last seen before timestamp
1080                                 else if( strcmp(type, "last_seen_before") == 0 ) {
1081                                         lastSeenAfter = atoll(val);
1082                                 }
1083                                 // - Last seen after timestamp
1084                                 else if( strcmp(type, "last_seen_after") == 0 ) {
1085                                         lastSeenAfter = atoll(val);
1086                                 }
1087                                 // - Sorting
1088                                 else if( strcmp(type, "sort") == 0 ) {
1089                                         char    *dash = strchr(val, '-');
1090                                         if( dash ) {
1091                                                 *dash = '\0';
1092                                                 dash ++;
1093                                         }
1094                                         if( strcmp(val, "name") == 0 ) {
1095                                                 sort = BANK_ITFLAG_SORT_NAME;
1096                                         }
1097                                         else if( strcmp(val, "balance") == 0 ) {
1098                                                 sort = BANK_ITFLAG_SORT_BAL;
1099                                         }
1100                                         else if( strcmp(val, "lastseen") == 0 ) {
1101                                                 sort = BANK_ITFLAG_SORT_LASTSEEN;
1102                                         }
1103                                         else {
1104                                                 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1105                                                 return ;
1106                                         }
1107                                         // Handle sort direction
1108                                         if( dash ) {
1109                                                 if( strcmp(dash, "desc") == 0 ) {
1110                                                         sort |= BANK_ITFLAG_REVSORT;
1111                                                 }
1112                                                 else {
1113                                                         sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1114                                                         return ;
1115                                                 }
1116                                                 dash[-1] = '-';
1117                                         }
1118                                 }
1119                                 else {
1120                                         sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1121                                         return ;
1122                                 }
1123
1124                                 val[-1] = ':';
1125                         }
1126                         else {
1127                                 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1128                                 return ;
1129                         }
1130
1131                         // Eat whitespace
1132                         if( space ) {
1133                                 *space = ' ';   // Repair (to be nice)
1134                                 space ++;
1135                                 while(*space == ' ')    space ++;
1136                         }
1137                 }       while(space);
1138         }
1139
1140         // Create iterator
1141         if( maxBal != INT_MAX ) {
1142                 flags = sort|BANK_ITFLAG_MAXBALANCE;
1143                 balValue = maxBal;
1144         }
1145         else if( minBal != INT_MIN ) {
1146                 flags = sort|BANK_ITFLAG_MINBALANCE;
1147                 balValue = minBal;
1148         }
1149         else {
1150                 flags = sort;
1151                 balValue = 0;
1152         }
1153         if( lastSeenBefore ) {
1154                 timeValue = lastSeenBefore;
1155                 flags |= BANK_ITFLAG_SEENBEFORE;
1156         }
1157         else if( lastSeenAfter ) {
1158                 timeValue = lastSeenAfter;
1159                 flags |= BANK_ITFLAG_SEENAFTER;
1160         }
1161         else {
1162                 timeValue = 0;
1163         }
1164         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1165
1166         // Get return number
1167         while( (i = Bank_IteratorNext(it)) != -1 )
1168         {
1169                 int bal = Bank_GetBalance(i);
1170
1171                 if( bal == INT_MIN )    continue;
1172
1173                 if( bal < minBal )      continue;
1174                 if( bal > maxBal )      continue;
1175
1176                 numRet ++;
1177         }
1178
1179         Bank_DelIterator(it);
1180
1181         // Send count
1182         sendf(Client->Socket, "201 Users %i\n", numRet);
1183
1184
1185         // Create iterator
1186         it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1187
1188         while( (i = Bank_IteratorNext(it)) != -1 )
1189         {
1190                 int bal = Bank_GetBalance(i);
1191
1192                 if( bal == INT_MIN )    continue;
1193
1194                 if( bal < minBal )      continue;
1195                 if( bal > maxBal )      continue;
1196
1197                 _SendUserInfo(Client, i);
1198         }
1199
1200         Bank_DelIterator(it);
1201
1202         sendf(Client->Socket, "200 List End\n");
1203 }
1204
1205 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1206 {
1207          int    uid;
1208         char    *user;
1209
1210         // Parse arguments
1211         if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1212                 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1213                 return ;
1214         }
1215
1216         if( giDebugLevel )      Debug(Client, "User Info '%s'", user);
1217
1218         // Get recipient
1219         uid = Bank_GetAcctByName(user, 0);
1220
1221         if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1222         if( uid == -1 ) {
1223                 sendf(Client->Socket, "404 Invalid user\n");
1224                 return ;
1225         }
1226
1227         _SendUserInfo(Client, uid);
1228 }
1229
1230 void _SendUserInfo(tClient *Client, int UserID)
1231 {
1232         char    *type, *disabled="", *door="";
1233          int    flags = Bank_GetFlags(UserID);
1234
1235         if( flags & USER_FLAG_INTERNAL ) {
1236                 type = "internal";
1237         }
1238         else if( flags & USER_FLAG_COKE ) {
1239                 if( flags & USER_FLAG_ADMIN )
1240                         type = "coke,admin";
1241                 else
1242                         type = "coke";
1243         }
1244         else if( flags & USER_FLAG_ADMIN ) {
1245                 type = "admin";
1246         }
1247         else {
1248                 type = "user";
1249         }
1250
1251         if( flags & USER_FLAG_DISABLED )
1252                 disabled = ",disabled";
1253         if( flags & USER_FLAG_DOORGROUP )
1254                 door = ",door";
1255
1256         // TODO: User flags/type
1257         sendf(
1258                 Client->Socket, "202 User %s %i %s%s%s\n",
1259                 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1260                 type, disabled, door
1261                 );
1262 }
1263
1264 void Server_Cmd_USERADD(tClient *Client, char *Args)
1265 {
1266         char    *username;
1267
1268         // Parse arguments
1269         if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1270                 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1271                 return ;
1272         }
1273
1274         // Check authentication
1275         if( !Client->bIsAuthed ) {
1276                 sendf(Client->Socket, "401 Not Authenticated\n");
1277                 return ;
1278         }
1279
1280         // Check permissions
1281         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1282                 sendf(Client->Socket, "403 Not a coke admin\n");
1283                 return ;
1284         }
1285
1286         // Try to create user
1287         if( Bank_CreateAcct(username) == -1 ) {
1288                 sendf(Client->Socket, "404 User exists\n");
1289                 return ;
1290         }
1291
1292         {
1293                 char    *thisName = Bank_GetAcctName(Client->UID);
1294                 Log_Info("Account '%s' created by '%s'", username, thisName);
1295                 free(thisName);
1296         }
1297
1298         sendf(Client->Socket, "200 User Added\n");
1299 }
1300
1301 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1302 {
1303         char    *username, *flags, *reason=NULL;
1304          int    mask=0, value=0;
1305          int    uid;
1306
1307         // Parse arguments
1308         if( Server_int_ParseArgs(1, Args, &username, &flags, &reason, NULL) ) {
1309                 if( !flags ) {
1310                         sendf(Client->Socket, "407 USER_FLAGS takes at least 2 arguments\n");
1311                         return ;
1312                 }
1313                 reason = "";
1314         }
1315
1316         // Check authentication
1317         if( !Client->bIsAuthed ) {
1318                 sendf(Client->Socket, "401 Not Authenticated\n");
1319                 return ;
1320         }
1321
1322         // Check permissions
1323         if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1324                 sendf(Client->Socket, "403 Not a coke admin\n");
1325                 return ;
1326         }
1327
1328         // Get UID
1329         uid = Bank_GetAcctByName(username, 0);
1330         if( uid == -1 ) {
1331                 sendf(Client->Socket, "404 User '%s' not found\n", username);
1332                 return ;
1333         }
1334
1335         // Parse flags
1336         if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1337                 return ;
1338
1339         if( giDebugLevel )
1340                 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1341                         uid, username, mask, value);
1342
1343         // Apply flags
1344         Bank_SetFlags(uid, mask, value);
1345
1346         // Log the change
1347         Log_Info("Updated '%s' with flag set '%s' by '%s' - Reason: %s",
1348                 username, flags, Client->Username, reason);
1349
1350         // Return OK
1351         sendf(Client->Socket, "200 User Updated\n");
1352 }
1353
1354 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args)
1355 {
1356         char    *itemname, *price_str, *description;
1357          int    price;
1358         tItem   *item;
1359
1360         if( Server_int_ParseArgs(1, Args, &itemname, &price_str, &description, NULL) ) {
1361                 sendf(Client->Socket, "407 UPDATE_ITEM takes 3 arguments\n");
1362                 return ;
1363         }
1364
1365         if( !Client->bIsAuthed ) {
1366                 sendf(Client->Socket, "401 Not Authenticated\n");
1367                 return ;
1368         }
1369
1370         // Check user permissions
1371         if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN))  ) {
1372                 sendf(Client->Socket, "403 Not in coke\n");
1373                 return ;
1374         }
1375
1376         item = _GetItemFromString(itemname);
1377         if( !item ) {
1378                 // TODO: Create item?
1379                 sendf(Client->Socket, "406 Bad Item ID\n");
1380                 return ;
1381         }
1382
1383         price = atoi(price_str);
1384         if( price <= 0 && price_str[0] != '0' ) {
1385                 sendf(Client->Socket, "407 Invalid price set\n");
1386         }
1387
1388         switch( DispenseUpdateItem( Client->UID, item, description, price ) )
1389         {
1390         case 0:
1391                 // Return OK
1392                 sendf(Client->Socket, "200 Item updated\n");
1393                 break;
1394         default:
1395                 break;
1396         }
1397 }
1398
1399 // --- INTERNAL HELPERS ---
1400 void Debug(tClient *Client, const char *Format, ...)
1401 {
1402         va_list args;
1403         //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1404         printf("[%i] ", Client->ID);
1405         va_start(args, Format);
1406         vprintf(Format, args);
1407         va_end(args);
1408         printf("\n");
1409 }
1410
1411 int sendf(int Socket, const char *Format, ...)
1412 {
1413         va_list args;
1414          int    len;
1415
1416         va_start(args, Format);
1417         len = vsnprintf(NULL, 0, Format, args);
1418         va_end(args);
1419
1420         {
1421                 char    buf[len+1];
1422                 va_start(args, Format);
1423                 vsnprintf(buf, len+1, Format, args);
1424                 va_end(args);
1425
1426                 #if DEBUG_TRACE_CLIENT
1427                 printf("sendf: %s", buf);
1428                 #endif
1429
1430                 return send(Socket, buf, len, 0);
1431         }
1432 }
1433
1434 // Takes a series of char *'s in
1435 /**
1436  * \brief Parse space-separated entries into
1437  */
1438 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1439 {
1440         va_list args;
1441         char    savedChar;
1442         char    **dest;
1443         va_start(args, ArgStr);
1444
1445         // Check for null
1446         if( !ArgStr )
1447         {
1448                 while( (dest = va_arg(args, char **)) )
1449                         *dest = NULL;
1450                 va_end(args);
1451                 return 1;
1452         }
1453
1454         savedChar = *ArgStr;
1455
1456         while( (dest = va_arg(args, char **)) )
1457         {
1458                 // Trim leading spaces
1459                 while( *ArgStr == ' ' || *ArgStr == '\t' )
1460                         ArgStr ++;
1461
1462                 // ... oops, not enough arguments
1463                 if( *ArgStr == '\0' )
1464                 {
1465                         // NULL unset arguments
1466                         do {
1467                                 *dest = NULL;
1468                         }       while( (dest = va_arg(args, char **)) );
1469                 va_end(args);
1470                         return -1;
1471                 }
1472
1473                 if( *ArgStr == '"' )
1474                 {
1475                         ArgStr ++;
1476                         *dest = ArgStr;
1477                         // Read until quote
1478                         while( *ArgStr && *ArgStr != '"' )
1479                                 ArgStr ++;
1480                 }
1481                 else
1482                 {
1483                         // Set destination
1484                         *dest = ArgStr;
1485                         // Read until a space
1486                         while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1487                                 ArgStr ++;
1488                 }
1489                 savedChar = *ArgStr;    // savedChar is used to un-mangle the last string
1490                 *ArgStr = '\0';
1491                 ArgStr ++;
1492         }
1493         va_end(args);
1494
1495         // Oops, extra arguments, and greedy not set
1496         if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1497                 return -1;
1498         }
1499
1500         // Un-mangle last
1501         if(bUseLongLast) {
1502                 ArgStr --;
1503                 *ArgStr = savedChar;
1504         }
1505
1506         return 0;       // Success!
1507 }
1508
1509 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1510 {
1511         struct {
1512                 const char      *Name;
1513                  int    Mask;
1514                  int    Value;
1515         }       cFLAGS[] = {
1516                  {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1517                 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1518                 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1519                 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1520                 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1521         };
1522         const int       ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1523
1524         char    *space;
1525
1526         *Mask = 0;
1527         *Value = 0;
1528
1529         do {
1530                  int    bRemove = 0;
1531                  int    i;
1532                  int    len;
1533
1534                 while( *Str == ' ' )    Str ++; // Eat whitespace
1535                 space = strchr(Str, ',');       // Find the end of the flag
1536                 if(space)
1537                         len = space - Str;
1538                 else
1539                         len = strlen(Str);
1540
1541                 // Check for inversion/removal
1542                 if( *Str == '!' || *Str == '-' ) {
1543                         bRemove = 1;
1544                         Str ++;
1545                 }
1546                 else if( *Str == '+' ) {
1547                         Str ++;
1548                 }
1549
1550                 // Check flag values
1551                 for( i = 0; i < ciNumFlags; i ++ )
1552                 {
1553                         if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1554                                 *Mask |= cFLAGS[i].Mask;
1555                                 *Value &= ~cFLAGS[i].Mask;
1556                                 if( !bRemove )
1557                                         *Value |= cFLAGS[i].Value;
1558                                 break;
1559                         }
1560                 }
1561
1562                 // Error check
1563                 if( i == ciNumFlags ) {
1564                         char    val[len+1];
1565                         strncpy(val, Str, len+1);
1566                         sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);
1567                         return -1;
1568                 }
1569
1570                 Str = space + 1;
1571         } while(space);
1572
1573         return 0;
1574 }