3 * UCC (University [of WA] Computer Club) Electronic Accounting System
5 * server.c - Client Server Code
7 * This file is licenced under the 3-clause BSD Licence. See the file
8 * COPYING for full details.
13 #include <sys/socket.h>
14 #include <netinet/in.h>
15 #include <arpa/inet.h>
17 #include <fcntl.h> // O_*
24 #define DEBUG_TRACE_CLIENT 0
25 #define HACK_NO_REFUNDS 1
28 #define MAX_CONNECTION_QUEUE 5
29 #define INPUT_BUFFER_SIZE 256
30 #define CLIENT_TIMEOUT 10 // Seconds
32 #define HASH_TYPE SHA1
33 #define HASH_LENGTH 20
35 #define MSG_STR_TOO_LONG "499 Command too long (limit "EXPSTR(INPUT_BUFFER_SIZE)")\n"
38 typedef struct sClient
40 int Socket; // Client socket ID
43 int bIsTrusted; // Is the connection from a trusted host/port
54 void Server_Start(void);
55 void Server_Cleanup(void);
56 void Server_HandleClient(int Socket, int bTrusted);
57 void Server_ParseClientCommand(tClient *Client, char *CommandString);
59 void Server_Cmd_USER(tClient *Client, char *Args);
60 void Server_Cmd_PASS(tClient *Client, char *Args);
61 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args);
62 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args);
63 void Server_Cmd_SETEUSER(tClient *Client, char *Args);
64 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args);
65 void Server_Cmd_ITEMINFO(tClient *Client, char *Args);
66 void Server_Cmd_DISPENSE(tClient *Client, char *Args);
67 void Server_Cmd_REFUND(tClient *Client, char *Args);
68 void Server_Cmd_GIVE(tClient *Client, char *Args);
69 void Server_Cmd_DONATE(tClient *Client, char *Args);
70 void Server_Cmd_ADD(tClient *Client, char *Args);
71 void Server_Cmd_SET(tClient *Client, char *Args);
72 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args);
73 void Server_Cmd_USERINFO(tClient *Client, char *Args);
74 void _SendUserInfo(tClient *Client, int UserID);
75 void Server_Cmd_USERADD(tClient *Client, char *Args);
76 void Server_Cmd_USERFLAGS(tClient *Client, char *Args);
77 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args);
79 void Debug(tClient *Client, const char *Format, ...);
80 int sendf(int Socket, const char *Format, ...);
81 int Server_int_ParseArgs(int bUseLongArg, char *ArgStr, ...);
82 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value);
86 const struct sClientCommand {
88 void (*Function)(tClient *Client, char *Arguments);
89 } gaServer_Commands[] = {
90 {"USER", Server_Cmd_USER},
91 {"PASS", Server_Cmd_PASS},
92 {"AUTOAUTH", Server_Cmd_AUTOAUTH},
93 {"AUTHIDENT", Server_Cmd_AUTHIDENT},
94 {"SETEUSER", Server_Cmd_SETEUSER},
95 {"ENUM_ITEMS", Server_Cmd_ENUMITEMS},
96 {"ITEM_INFO", Server_Cmd_ITEMINFO},
97 {"DISPENSE", Server_Cmd_DISPENSE},
98 {"REFUND", Server_Cmd_REFUND},
99 {"GIVE", Server_Cmd_GIVE},
100 {"DONATE", Server_Cmd_DONATE},
101 {"ADD", Server_Cmd_ADD},
102 {"SET", Server_Cmd_SET},
103 {"ENUM_USERS", Server_Cmd_ENUMUSERS},
104 {"USER_INFO", Server_Cmd_USERINFO},
105 {"USER_ADD", Server_Cmd_USERADD},
106 {"USER_FLAGS", Server_Cmd_USERFLAGS},
107 {"UPDATE_ITEM", Server_Cmd_UPDATEITEM}
109 #define NUM_COMMANDS ((int)(sizeof(gaServer_Commands)/sizeof(gaServer_Commands[0])))
113 int giServer_Port = 11020;
114 int gbServer_RunInBackground = 0;
115 char *gsServer_LogFile = "/var/log/dispsrv.log";
116 char *gsServer_ErrorLog = "/var/log/dispsrv.err";
118 int giServer_Socket; // Server socket
119 int giServer_NextClientID = 1; // Debug client ID
124 * \brief Open listenting socket and serve connections
126 void Server_Start(void)
129 struct sockaddr_in server_addr, client_addr;
131 atexit(Server_Cleanup);
132 // Ignore SIGPIPE (stops crashes when the client exits early)
133 signal(SIGPIPE, SIG_IGN);
136 giServer_Socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
137 if( giServer_Socket < 0 ) {
138 fprintf(stderr, "ERROR: Unable to create server socket\n");
142 // Make listen address
143 memset(&server_addr, 0, sizeof(server_addr));
144 server_addr.sin_family = AF_INET; // Internet Socket
145 server_addr.sin_addr.s_addr = htonl(INADDR_ANY); // Listen on all interfaces
146 server_addr.sin_port = htons(giServer_Port); // Port
149 if( bind(giServer_Socket, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 ) {
150 fprintf(stderr, "ERROR: Unable to bind to 0.0.0.0:%i\n", giServer_Port);
155 // Fork into background
156 if( gbServer_RunInBackground )
160 fprintf(stderr, "ERROR: Unable to fork\n");
161 perror("fork background");
169 // - Sort out stdin/stdout
171 dup2( open("/dev/null", O_RDONLY, 0644), STDIN_FILENO );
172 dup2( open(gsServer_LogFile, O_CREAT|O_APPEND, 0644), STDOUT_FILENO );
173 dup2( open(gsServer_ErrorLog, O_CREAT|O_APPEND, 0644), STDERR_FILENO );
175 freopen("/dev/null", "r", stdin);
176 freopen(gsServer_LogFile, "a", stdout);
177 freopen(gsServer_ErrorLog, "a", stderr);
181 // Start the helper thread
182 StartPeriodicThread();
185 if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
186 fprintf(stderr, "ERROR: Unable to listen to socket\n");
191 printf("Listening on 0.0.0.0:%i\n", giServer_Port);
195 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
197 fprintf(fp, "%i", getpid());
204 uint len = sizeof(client_addr);
207 // Accept a connection
208 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
209 if(client_socket < 0) {
210 fprintf(stderr, "ERROR: Unable to accept client connection\n");
214 // Set a timeout on the user conneciton
217 tv.tv_sec = CLIENT_TIMEOUT;
219 if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
221 perror("setsockopt");
226 // Debug: Print the connection string
227 if(giDebugLevel >= 2) {
228 char ipstr[INET_ADDRSTRLEN];
229 inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
230 printf("Client connection from %s:%i\n",
231 ipstr, ntohs(client_addr.sin_port));
234 // Doesn't matter what, localhost is trusted
235 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
238 // Trusted Connections
239 if( ntohs(client_addr.sin_port) < 1024 )
241 // TODO: Make this runtime configurable
242 switch( ntohl( client_addr.sin_addr.s_addr ) )
244 case 0x7F000001: // 127.0.0.1 localhost
245 // case 0x825F0D00: // 130.95.13.0
246 case 0x825F0D04: // 130.95.13.4 merlo
247 // case 0x825F0D05: // 130.95.13.5 heathred (MR)
248 case 0x825F0D07: // 130.95.13.7 motsugo
249 case 0x825F0D11: // 130.95.13.17 mermaid
250 case 0x825F0D12: // 130.95.13.18 mussel
251 case 0x825F0D17: // 130.95.13.23 martello
252 case 0x825F0D2A: // 130.95.13.42 meersau
253 // case 0x825F0D42: // 130.95.13.66 heathred (Clubroom)
261 // TODO: Multithread this?
262 Server_HandleClient(client_socket, bTrusted);
264 close(client_socket);
268 void Server_Cleanup(void)
270 printf("\nClose(%i)\n", giServer_Socket);
271 close(giServer_Socket);
272 unlink("/var/run/dispsrv.pid");
276 * \brief Reads from a client socket and parses the command strings
277 * \param Socket Client socket number/handle
278 * \param bTrusted Is the client trusted?
280 void Server_HandleClient(int Socket, int bTrusted)
282 char inbuf[INPUT_BUFFER_SIZE];
284 int remspace = INPUT_BUFFER_SIZE-1;
288 memset(&clientInfo, 0, sizeof(clientInfo));
290 // Initialise Client info
291 clientInfo.Socket = Socket;
292 clientInfo.ID = giServer_NextClientID ++;
293 clientInfo.bIsTrusted = bTrusted;
294 clientInfo.EffectiveUID = -1;
299 * - The `buf` and `remspace` variables allow a line to span several
300 * calls to recv(), if a line is not completed in one recv() call
301 * it is saved to the beginning of `inbuf` and `buf` is updated to
304 // TODO: Use select() instead (to give a timeout)
305 while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
308 buf[bytes] = '\0'; // Allow us to use stdlib string functions on it
312 while( (eol = strchr(start, '\n')) )
316 Server_ParseClientCommand(&clientInfo, start);
321 // Check if there was an incomplete line
322 if( *start != '\0' ) {
323 int tailBytes = bytes - (start-buf);
324 // Roll back in buffer
325 memcpy(inbuf, start, tailBytes);
326 remspace -= tailBytes;
328 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
330 remspace = INPUT_BUFFER_SIZE - 1;
335 remspace = INPUT_BUFFER_SIZE - 1;
341 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
345 if(giDebugLevel >= 2) {
346 printf("Client %i: Disconnected\n", clientInfo.ID);
351 * \brief Parses a client command and calls the required helper function
352 * \param Client Pointer to client state structure
353 * \param CommandString Command from client (single line of the command)
354 * \return Heap String to return to the client
356 void Server_ParseClientCommand(tClient *Client, char *CommandString)
358 char *command, *args;
361 if( giDebugLevel >= 2 )
362 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
364 if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
366 if( command == NULL ) return ;
367 // Is this an error? (just ignore for now)
372 for( i = 0; i < NUM_COMMANDS; i++ )
374 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
375 if( giDebugLevel >= 2 )
376 Debug(Client, "CMD %s - \"%s\"", command, args);
377 gaServer_Commands[i].Function(Client, args);
382 sendf(Client->Socket, "400 Unknown Command\n");
389 * \brief Set client username
391 * Usage: USER <username>
393 void Server_Cmd_USER(tClient *Client, char *Args)
397 if( Server_int_ParseArgs(0, Args, &username, NULL) )
399 sendf(Client->Socket, "407 USER takes 1 argument\n");
405 Debug(Client, "Authenticating as '%s'", username);
409 free(Client->Username);
410 Client->Username = strdup(username);
413 // Create a salt (that changes if the username is changed)
414 // Yes, I know, I'm a little paranoid, but who isn't?
415 Client->Salt[0] = 0x21 + (rand()&0x3F);
416 Client->Salt[1] = 0x21 + (rand()&0x3F);
417 Client->Salt[2] = 0x21 + (rand()&0x3F);
418 Client->Salt[3] = 0x21 + (rand()&0x3F);
419 Client->Salt[4] = 0x21 + (rand()&0x3F);
420 Client->Salt[5] = 0x21 + (rand()&0x3F);
421 Client->Salt[6] = 0x21 + (rand()&0x3F);
422 Client->Salt[7] = 0x21 + (rand()&0x3F);
424 // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
425 sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
427 sendf(Client->Socket, "100 User Set\n");
432 * \brief Authenticate as a user
436 void Server_Cmd_PASS(tClient *Client, char *Args)
441 if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
443 sendf(Client->Socket, "407 PASS takes 1 argument\n");
447 // Pass on to cokebank
448 Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
450 if( Client->UID == -1 ) {
451 sendf(Client->Socket, "401 Auth Failure\n");
455 flags = Bank_GetFlags(Client->UID);
456 if( flags & USER_FLAG_DISABLED ) {
458 sendf(Client->Socket, "403 Account Disabled\n");
461 if( flags & USER_FLAG_INTERNAL ) {
463 sendf(Client->Socket, "403 Internal account\n");
467 Client->bIsAuthed = 1;
468 sendf(Client->Socket, "200 Auth OK\n");
472 * \brief Authenticate as a user without a password
474 * Usage: AUTOAUTH <user>
476 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
481 if( Server_int_ParseArgs(0, Args, &username, NULL) )
483 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
488 if( !Client->bIsTrusted ) {
490 Debug(Client, "Untrusted client attempting to AUTOAUTH");
491 sendf(Client->Socket, "401 Untrusted\n");
496 Client->UID = Bank_GetAcctByName( username, 0 );
497 if( Client->UID < 0 ) {
499 Debug(Client, "Unknown user '%s'", username);
500 sendf(Client->Socket, "403 Auth Failure\n");
504 userflags = Bank_GetFlags(Client->UID);
505 // You can't be an internal account
506 if( userflags & USER_FLAG_INTERNAL ) {
508 Debug(Client, "Autoauth as '%s', not allowed", username);
510 sendf(Client->Socket, "403 Account is internal\n");
515 if( userflags & USER_FLAG_DISABLED ) {
517 sendf(Client->Socket, "403 Account disabled\n");
523 free(Client->Username);
524 Client->Username = strdup(username);
526 Client->bIsAuthed = 1;
529 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
531 sendf(Client->Socket, "200 Auth OK\n");
535 * \brief Authenticate as a user using the IDENT protocol
539 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args)
543 const int ident_timeout = 5;
545 if( Args != NULL && strlen(Args) ) {
546 sendf(Client->Socket, "407 AUTHIDENT takes no arguments\n");
551 if( !Client->bIsTrusted ) {
553 Debug(Client, "Untrusted client attempting to AUTHIDENT");
554 sendf(Client->Socket, "401 Untrusted\n");
558 // Get username via IDENT
559 username = ident_id(Client->Socket, ident_timeout);
561 sendf(Client->Socket, "403 Authentication failure: IDENT auth timed out\n");
565 Client->UID = Bank_GetAcctByName( username, 0 );
566 if( Client->UID < 0 ) {
568 Debug(Client, "Unknown user '%s'", username);
569 sendf(Client->Socket, "403 Authentication failure: unknown account\n");
574 userflags = Bank_GetFlags(Client->UID);
575 // You can't be an internal account
576 if( userflags & USER_FLAG_INTERNAL ) {
578 Debug(Client, "IDENT auth as '%s', not allowed", username);
580 sendf(Client->Socket, "403 Authentication failure: that account is internal\n");
586 if( userflags & USER_FLAG_DISABLED ) {
588 sendf(Client->Socket, "403 Authentication failure: account disabled\n");
595 free(Client->Username);
596 Client->Username = strdup(username);
598 Client->bIsAuthed = 1;
601 Debug(Client, "IDENT authenticated as '%s' (%i)", username, Client->UID);
604 sendf(Client->Socket, "200 Auth OK\n");
608 * \brief Set effective user
610 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
613 int eUserFlags, userFlags;
615 if( Server_int_ParseArgs(0, Args, &username, NULL) )
617 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
621 if( !strlen(Args) ) {
622 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
626 // Check authentication
627 if( !Client->bIsAuthed ) {
628 sendf(Client->Socket, "401 Not Authenticated\n");
632 // Check user permissions
633 userFlags = Bank_GetFlags(Client->UID);
634 if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
635 sendf(Client->Socket, "403 Not in coke\n");
640 Client->EffectiveUID = Bank_GetAcctByName(username, 0);
641 if( Client->EffectiveUID == -1 ) {
642 sendf(Client->Socket, "404 User not found\n");
646 // You can't be an internal account
647 if( !(userFlags & USER_FLAG_ADMIN) )
649 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
650 if( eUserFlags & USER_FLAG_INTERNAL ) {
651 Client->EffectiveUID = -1;
652 sendf(Client->Socket, "404 User not found\n");
655 // Disabled only avaliable to admins
656 if( eUserFlags & USER_FLAG_DISABLED ) {
657 Client->EffectiveUID = -1;
658 sendf(Client->Socket, "403 Account disabled\n");
663 sendf(Client->Socket, "200 User set\n");
667 * \brief Send an item status to the client
668 * \param Client Who to?
669 * \param Item Item to send
671 void Server_int_SendItem(tClient *Client, tItem *Item)
673 char *status = "avail";
675 if( Item->Handler->CanDispense )
677 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
679 case 0: status = "avail"; break;
680 case 1: status = "sold"; break;
682 case -1: status = "error"; break;
686 // KNOWN HACK: Naming a slot 'dead' disables it
687 if( strcmp(Item->Name, "dead") == 0 )
688 status = "sold"; // Another status?
690 sendf(Client->Socket,
691 "202 Item %s:%i %s %i %s\n",
692 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
697 * \brief Enumerate the items that the server knows about
699 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
703 if( Args != NULL && strlen(Args) ) {
704 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
710 for( i = 0; i < giNumItems; i ++ ) {
711 if( gaItems[i].bHidden ) continue;
715 sendf(Client->Socket, "201 Items %i\n", count);
717 for( i = 0; i < giNumItems; i ++ ) {
718 if( gaItems[i].bHidden ) continue;
719 Server_int_SendItem( Client, &gaItems[i] );
722 sendf(Client->Socket, "200 List end\n");
725 tItem *_GetItemFromString(char *String)
729 char *colon = strchr(String, ':');
741 for( i = 0; i < giNumHandlers; i ++ )
743 if( strcmp(gaHandlers[i]->Name, type) == 0) {
744 handler = gaHandlers[i];
753 for( i = 0; i < giNumItems; i ++ )
755 if( gaItems[i].Handler != handler ) continue;
756 if( gaItems[i].ID != num ) continue;
763 * \brief Fetch information on a specific item
765 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
770 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
771 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
774 item = _GetItemFromString(Args);
777 sendf(Client->Socket, "406 Bad Item ID\n");
781 Server_int_SendItem( Client, item );
784 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
791 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
792 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
796 if( !Client->bIsAuthed ) {
797 sendf(Client->Socket, "401 Not Authenticated\n");
801 item = _GetItemFromString(itemname);
803 sendf(Client->Socket, "406 Bad Item ID\n");
807 if( Client->EffectiveUID != -1 ) {
808 uid = Client->EffectiveUID;
814 switch( ret = DispenseItem( Client->UID, uid, item ) )
816 case 0: sendf(Client->Socket, "200 Dispense OK\n"); return ;
817 case 1: sendf(Client->Socket, "501 Unable to dispense\n"); return ;
818 case 2: sendf(Client->Socket, "402 Poor You\n"); return ;
820 sendf(Client->Socket, "500 Dispense Error (%i)\n", ret);
825 void Server_Cmd_REFUND(tClient *Client, char *Args)
828 int uid, price_override = 0;
829 char *username, *itemname, *price_str;
831 if( Server_int_ParseArgs(0, Args, &username, &itemname, &price_str, NULL) ) {
832 if( !itemname || price_str ) {
833 sendf(Client->Socket, "407 REFUND takes 2 or 3 arguments\n");
838 if( !Client->bIsAuthed ) {
839 sendf(Client->Socket, "401 Not Authenticated\n");
843 // Check user permissions
844 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
845 sendf(Client->Socket, "403 Not in coke\n");
849 uid = Bank_GetAcctByName(username, 0);
851 sendf(Client->Socket, "404 Unknown user\n");
855 item = _GetItemFromString(itemname);
857 sendf(Client->Socket, "406 Bad Item ID\n");
862 price_override = atoi(price_str);
864 switch( DispenseRefund( Client->UID, uid, item, price_override ) )
866 case 0: sendf(Client->Socket, "200 Item Refunded\n"); return ;
868 sendf(Client->Socket, "500 Dispense Error\n");
873 void Server_Cmd_GIVE(tClient *Client, char *Args)
875 char *recipient, *ammount, *reason;
880 if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
881 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
886 if( !Client->bIsAuthed ) {
887 sendf(Client->Socket, "401 Not Authenticated\n");
892 uid = Bank_GetAcctByName(recipient, 0);
894 sendf(Client->Socket, "404 Invalid target user\n");
898 // You can't alter an internal account
899 // if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
900 // sendf(Client->Socket, "404 Invalid target user\n");
905 iAmmount = atoi(ammount);
906 if( iAmmount <= 0 ) {
907 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
911 if( Client->EffectiveUID != -1 ) {
912 thisUid = Client->EffectiveUID;
915 thisUid = Client->UID;
919 switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
922 sendf(Client->Socket, "200 Give OK\n");
925 sendf(Client->Socket, "402 Poor You\n");
928 sendf(Client->Socket, "500 Unknown error\n");
933 void Server_Cmd_DONATE(tClient *Client, char *Args)
935 char *ammount, *reason;
940 if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
941 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
945 if( !Client->bIsAuthed ) {
946 sendf(Client->Socket, "401 Not Authenticated\n");
951 iAmmount = atoi(ammount);
952 if( iAmmount <= 0 ) {
953 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
957 // Handle effective users
958 if( Client->EffectiveUID != -1 ) {
959 thisUid = Client->EffectiveUID;
962 thisUid = Client->UID;
966 switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
969 sendf(Client->Socket, "200 Give OK\n");
972 sendf(Client->Socket, "402 Poor You\n");
975 sendf(Client->Socket, "500 Unknown error\n");
980 void Server_Cmd_ADD(tClient *Client, char *Args)
982 char *user, *ammount, *reason;
986 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
987 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
991 if( !Client->bIsAuthed ) {
992 sendf(Client->Socket, "401 Not Authenticated\n");
996 // Check user permissions
997 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
998 sendf(Client->Socket, "403 Not in coke\n");
1003 if( strcmp( Client->Username, "root" ) == 0 ) {
1004 // Allow adding for new users
1005 if( strcmp(reason, "treasurer: new user") != 0 ) {
1006 sendf(Client->Socket, "403 Root may not add\n");
1013 if( strstr(reason, "refund") != NULL || strstr(reason, "misdispense") != NULL )
1015 sendf(Client->Socket, "499 Don't use `dispense acct` for refunds, use `dispense refund` (and `dispense -G` to get item IDs)\n");
1021 uid = Bank_GetAcctByName(user, 0);
1023 sendf(Client->Socket, "404 Invalid user\n");
1027 // You can't alter an internal account
1028 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
1030 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
1031 sendf(Client->Socket, "404 Invalid user\n");
1034 // TODO: Maybe disallow changes to disabled?
1038 iAmmount = atoi(ammount);
1039 if( iAmmount == 0 && ammount[0] != '0' ) {
1040 sendf(Client->Socket, "407 Invalid Argument\n");
1045 switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
1048 sendf(Client->Socket, "200 Add OK\n");
1051 sendf(Client->Socket, "402 Poor Guy\n");
1054 sendf(Client->Socket, "500 Unknown error\n");
1059 void Server_Cmd_SET(tClient *Client, char *Args)
1061 char *user, *ammount, *reason;
1065 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
1066 sendf(Client->Socket, "407 SET takes 3 arguments\n");
1070 if( !Client->bIsAuthed ) {
1071 sendf(Client->Socket, "401 Not Authenticated\n");
1075 // Check user permissions
1076 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1077 sendf(Client->Socket, "403 Not an admin\n");
1082 uid = Bank_GetAcctByName(user, 0);
1084 sendf(Client->Socket, "404 Invalid user\n");
1089 iAmmount = atoi(ammount);
1090 if( iAmmount == 0 && ammount[0] != '0' ) {
1091 sendf(Client->Socket, "407 Invalid Argument\n");
1096 switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
1099 sendf(Client->Socket, "200 Add OK\n");
1102 sendf(Client->Socket, "402 Poor Guy\n");
1105 sendf(Client->Socket, "500 Unknown error\n");
1110 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
1114 int maxBal = INT_MAX, minBal = INT_MIN;
1115 int flagMask = 0, flagVal = 0;
1116 int sort = BANK_ITFLAG_SORT_NAME;
1117 time_t lastSeenAfter=0, lastSeenBefore=0;
1119 int flags; // Iterator flags
1120 int balValue; // Balance value for iterator
1121 time_t timeValue; // Time value for iterator
1124 if( Args && strlen(Args) )
1126 char *space = Args, *type, *val;
1130 while(*type == ' ') type ++;
1132 space = strchr(space, ' ');
1133 if(space) *space = '\0';
1136 val = strchr(type, ':');
1143 if( strcmp(type, "min_balance") == 0 ) {
1146 // - Maximum Balance
1147 else if( strcmp(type, "max_balance") == 0 ) {
1151 else if( strcmp(type, "flags") == 0 ) {
1152 if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
1155 // - Last seen before timestamp
1156 else if( strcmp(type, "last_seen_before") == 0 ) {
1157 lastSeenAfter = atoll(val);
1159 // - Last seen after timestamp
1160 else if( strcmp(type, "last_seen_after") == 0 ) {
1161 lastSeenAfter = atoll(val);
1164 else if( strcmp(type, "sort") == 0 ) {
1165 char *dash = strchr(val, '-');
1170 if( strcmp(val, "name") == 0 ) {
1171 sort = BANK_ITFLAG_SORT_NAME;
1173 else if( strcmp(val, "balance") == 0 ) {
1174 sort = BANK_ITFLAG_SORT_BAL;
1176 else if( strcmp(val, "lastseen") == 0 ) {
1177 sort = BANK_ITFLAG_SORT_LASTSEEN;
1180 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1183 // Handle sort direction
1185 if( strcmp(dash, "desc") == 0 ) {
1186 sort |= BANK_ITFLAG_REVSORT;
1189 sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1196 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1203 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1209 *space = ' '; // Repair (to be nice)
1211 while(*space == ' ') space ++;
1217 if( maxBal != INT_MAX ) {
1218 flags = sort|BANK_ITFLAG_MAXBALANCE;
1221 else if( minBal != INT_MIN ) {
1222 flags = sort|BANK_ITFLAG_MINBALANCE;
1229 if( lastSeenBefore ) {
1230 timeValue = lastSeenBefore;
1231 flags |= BANK_ITFLAG_SEENBEFORE;
1233 else if( lastSeenAfter ) {
1234 timeValue = lastSeenAfter;
1235 flags |= BANK_ITFLAG_SEENAFTER;
1240 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1242 // Get return number
1243 while( (i = Bank_IteratorNext(it)) != -1 )
1245 int bal = Bank_GetBalance(i);
1247 if( bal == INT_MIN ) continue;
1249 if( bal < minBal ) continue;
1250 if( bal > maxBal ) continue;
1255 Bank_DelIterator(it);
1258 sendf(Client->Socket, "201 Users %i\n", numRet);
1262 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1264 while( (i = Bank_IteratorNext(it)) != -1 )
1266 int bal = Bank_GetBalance(i);
1268 if( bal == INT_MIN ) continue;
1270 if( bal < minBal ) continue;
1271 if( bal > maxBal ) continue;
1273 _SendUserInfo(Client, i);
1276 Bank_DelIterator(it);
1278 sendf(Client->Socket, "200 List End\n");
1281 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1287 if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1288 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1292 if( giDebugLevel ) Debug(Client, "User Info '%s'", user);
1295 uid = Bank_GetAcctByName(user, 0);
1297 if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1299 sendf(Client->Socket, "404 Invalid user\n");
1303 _SendUserInfo(Client, uid);
1306 void _SendUserInfo(tClient *Client, int UserID)
1308 char *type, *disabled="", *door="";
1309 int flags = Bank_GetFlags(UserID);
1311 if( flags & USER_FLAG_INTERNAL ) {
1314 else if( flags & USER_FLAG_COKE ) {
1315 if( flags & USER_FLAG_ADMIN )
1316 type = "coke,admin";
1320 else if( flags & USER_FLAG_ADMIN ) {
1327 if( flags & USER_FLAG_DISABLED )
1328 disabled = ",disabled";
1329 if( flags & USER_FLAG_DOORGROUP )
1332 // TODO: User flags/type
1334 Client->Socket, "202 User %s %i %s%s%s\n",
1335 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1336 type, disabled, door
1340 void Server_Cmd_USERADD(tClient *Client, char *Args)
1345 if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1346 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1350 // Check authentication
1351 if( !Client->bIsAuthed ) {
1352 sendf(Client->Socket, "401 Not Authenticated\n");
1356 // Check permissions
1357 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1358 sendf(Client->Socket, "403 Not a coke admin\n");
1362 // Try to create user
1363 if( Bank_CreateAcct(username) == -1 ) {
1364 sendf(Client->Socket, "404 User exists\n");
1369 char *thisName = Bank_GetAcctName(Client->UID);
1370 Log_Info("Account '%s' created by '%s'", username, thisName);
1374 sendf(Client->Socket, "200 User Added\n");
1377 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1379 char *username, *flags, *reason=NULL;
1380 int mask=0, value=0;
1384 if( Server_int_ParseArgs(1, Args, &username, &flags, &reason, NULL) ) {
1386 sendf(Client->Socket, "407 USER_FLAGS takes at least 2 arguments\n");
1392 // Check authentication
1393 if( !Client->bIsAuthed ) {
1394 sendf(Client->Socket, "401 Not Authenticated\n");
1398 // Check permissions
1399 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1400 sendf(Client->Socket, "403 Not a coke admin\n");
1405 uid = Bank_GetAcctByName(username, 0);
1407 sendf(Client->Socket, "404 User '%s' not found\n", username);
1412 if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1416 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1417 uid, username, mask, value);
1420 Bank_SetFlags(uid, mask, value);
1423 Log_Info("Updated '%s' with flag set '%s' by '%s' - Reason: %s",
1424 username, flags, Client->Username, reason);
1427 sendf(Client->Socket, "200 User Updated\n");
1430 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args)
1432 char *itemname, *price_str, *description;
1436 if( Server_int_ParseArgs(1, Args, &itemname, &price_str, &description, NULL) ) {
1437 sendf(Client->Socket, "407 UPDATE_ITEM takes 3 arguments\n");
1441 if( !Client->bIsAuthed ) {
1442 sendf(Client->Socket, "401 Not Authenticated\n");
1446 // Check user permissions
1447 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
1448 sendf(Client->Socket, "403 Not in coke\n");
1452 item = _GetItemFromString(itemname);
1454 // TODO: Create item?
1455 sendf(Client->Socket, "406 Bad Item ID\n");
1459 price = atoi(price_str);
1460 if( price <= 0 && price_str[0] != '0' ) {
1461 sendf(Client->Socket, "407 Invalid price set\n");
1464 switch( DispenseUpdateItem( Client->UID, item, description, price ) )
1468 sendf(Client->Socket, "200 Item updated\n");
1475 // --- INTERNAL HELPERS ---
1476 void Debug(tClient *Client, const char *Format, ...)
1479 //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1480 printf("[%i] ", Client->ID);
1481 va_start(args, Format);
1482 vprintf(Format, args);
1487 int sendf(int Socket, const char *Format, ...)
1492 va_start(args, Format);
1493 len = vsnprintf(NULL, 0, Format, args);
1498 va_start(args, Format);
1499 vsnprintf(buf, len+1, Format, args);
1502 #if DEBUG_TRACE_CLIENT
1503 printf("sendf: %s", buf);
1506 return send(Socket, buf, len, 0);
1510 // Takes a series of char *'s in
1512 * \brief Parse space-separated entries into
1514 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1519 va_start(args, ArgStr);
1524 while( (dest = va_arg(args, char **)) )
1530 savedChar = *ArgStr;
1532 while( (dest = va_arg(args, char **)) )
1534 // Trim leading spaces
1535 while( *ArgStr == ' ' || *ArgStr == '\t' )
1538 // ... oops, not enough arguments
1539 if( *ArgStr == '\0' )
1541 // NULL unset arguments
1544 } while( (dest = va_arg(args, char **)) );
1549 if( *ArgStr == '"' )
1554 while( *ArgStr && *ArgStr != '"' )
1561 // Read until a space
1562 while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1565 savedChar = *ArgStr; // savedChar is used to un-mangle the last string
1571 // Oops, extra arguments, and greedy not set
1572 if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1579 *ArgStr = savedChar;
1582 return 0; // Success!
1585 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1592 {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1593 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1594 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1595 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1596 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1598 const int ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1610 while( *Str == ' ' ) Str ++; // Eat whitespace
1611 space = strchr(Str, ','); // Find the end of the flag
1617 // Check for inversion/removal
1618 if( *Str == '!' || *Str == '-' ) {
1622 else if( *Str == '+' ) {
1626 // Check flag values
1627 for( i = 0; i < ciNumFlags; i ++ )
1629 if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1630 *Mask |= cFLAGS[i].Mask;
1631 *Value &= ~cFLAGS[i].Mask;
1633 *Value |= cFLAGS[i].Value;
1639 if( i == ciNumFlags ) {
1641 strncpy(val, Str, len+1);
1642 sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);