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"
37 #define IDENT_TRUSTED_NETWORK 0x825F0D00
38 #define IDENT_TRUSTED_NETMASK 0xFFFFFFC0
41 typedef struct sClient
43 int Socket; // Client socket ID
46 int bIsTrusted; // Is the connection from a trusted host/port
57 void Server_Start(void);
58 void Server_Cleanup(void);
59 void Server_HandleClient(int Socket, int bTrusted);
60 void Server_ParseClientCommand(tClient *Client, char *CommandString);
62 void Server_Cmd_USER(tClient *Client, char *Args);
63 void Server_Cmd_PASS(tClient *Client, char *Args);
64 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args);
65 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args);
66 void Server_Cmd_SETEUSER(tClient *Client, char *Args);
67 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args);
68 void Server_Cmd_ITEMINFO(tClient *Client, char *Args);
69 void Server_Cmd_DISPENSE(tClient *Client, char *Args);
70 void Server_Cmd_REFUND(tClient *Client, char *Args);
71 void Server_Cmd_GIVE(tClient *Client, char *Args);
72 void Server_Cmd_DONATE(tClient *Client, char *Args);
73 void Server_Cmd_ADD(tClient *Client, char *Args);
74 void Server_Cmd_SET(tClient *Client, char *Args);
75 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args);
76 void Server_Cmd_USERINFO(tClient *Client, char *Args);
77 void _SendUserInfo(tClient *Client, int UserID);
78 void Server_Cmd_USERADD(tClient *Client, char *Args);
79 void Server_Cmd_USERFLAGS(tClient *Client, char *Args);
80 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args);
82 void Debug(tClient *Client, const char *Format, ...);
83 int sendf(int Socket, const char *Format, ...);
84 int Server_int_ParseArgs(int bUseLongArg, char *ArgStr, ...);
85 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value);
89 const struct sClientCommand {
91 void (*Function)(tClient *Client, char *Arguments);
92 } gaServer_Commands[] = {
93 {"USER", Server_Cmd_USER},
94 {"PASS", Server_Cmd_PASS},
95 {"AUTOAUTH", Server_Cmd_AUTOAUTH},
96 {"AUTHIDENT", Server_Cmd_AUTHIDENT},
97 {"SETEUSER", Server_Cmd_SETEUSER},
98 {"ENUM_ITEMS", Server_Cmd_ENUMITEMS},
99 {"ITEM_INFO", Server_Cmd_ITEMINFO},
100 {"DISPENSE", Server_Cmd_DISPENSE},
101 {"REFUND", Server_Cmd_REFUND},
102 {"GIVE", Server_Cmd_GIVE},
103 {"DONATE", Server_Cmd_DONATE},
104 {"ADD", Server_Cmd_ADD},
105 {"SET", Server_Cmd_SET},
106 {"ENUM_USERS", Server_Cmd_ENUMUSERS},
107 {"USER_INFO", Server_Cmd_USERINFO},
108 {"USER_ADD", Server_Cmd_USERADD},
109 {"USER_FLAGS", Server_Cmd_USERFLAGS},
110 {"UPDATE_ITEM", Server_Cmd_UPDATEITEM}
112 #define NUM_COMMANDS ((int)(sizeof(gaServer_Commands)/sizeof(gaServer_Commands[0])))
116 int giServer_Port = 11020;
117 int gbServer_RunInBackground = 0;
118 char *gsServer_LogFile = "/var/log/dispsrv.log";
119 char *gsServer_ErrorLog = "/var/log/dispsrv.err";
121 int giServer_Socket; // Server socket
122 int giServer_NextClientID = 1; // Debug client ID
127 * \brief Open listenting socket and serve connections
129 void Server_Start(void)
132 struct sockaddr_in server_addr, client_addr;
134 atexit(Server_Cleanup);
135 // Ignore SIGPIPE (stops crashes when the client exits early)
136 signal(SIGPIPE, SIG_IGN);
139 giServer_Socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
140 if( giServer_Socket < 0 ) {
141 fprintf(stderr, "ERROR: Unable to create server socket\n");
145 // Make listen address
146 memset(&server_addr, 0, sizeof(server_addr));
147 server_addr.sin_family = AF_INET; // Internet Socket
148 server_addr.sin_addr.s_addr = htonl(INADDR_ANY); // Listen on all interfaces
149 server_addr.sin_port = htons(giServer_Port); // Port
152 if( bind(giServer_Socket, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 ) {
153 fprintf(stderr, "ERROR: Unable to bind to 0.0.0.0:%i\n", giServer_Port);
158 // Fork into background
159 if( gbServer_RunInBackground )
163 fprintf(stderr, "ERROR: Unable to fork\n");
164 perror("fork background");
172 // - Sort out stdin/stdout
174 dup2( open("/dev/null", O_RDONLY, 0644), STDIN_FILENO );
175 dup2( open(gsServer_LogFile, O_CREAT|O_APPEND, 0644), STDOUT_FILENO );
176 dup2( open(gsServer_ErrorLog, O_CREAT|O_APPEND, 0644), STDERR_FILENO );
178 freopen("/dev/null", "r", stdin);
179 freopen(gsServer_LogFile, "a", stdout);
180 freopen(gsServer_ErrorLog, "a", stderr);
184 // Start the helper thread
185 StartPeriodicThread();
188 if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
189 fprintf(stderr, "ERROR: Unable to listen to socket\n");
194 printf("Listening on 0.0.0.0:%i\n", giServer_Port);
198 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
200 fprintf(fp, "%i", getpid());
207 uint len = sizeof(client_addr);
210 // Accept a connection
211 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
212 if(client_socket < 0) {
213 fprintf(stderr, "ERROR: Unable to accept client connection\n");
217 // Set a timeout on the user conneciton
220 tv.tv_sec = CLIENT_TIMEOUT;
222 if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
224 perror("setsockopt");
229 // Debug: Print the connection string
230 if(giDebugLevel >= 2) {
231 char ipstr[INET_ADDRSTRLEN];
232 inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
233 printf("Client connection from %s:%i\n",
234 ipstr, ntohs(client_addr.sin_port));
237 // Doesn't matter what, localhost is trusted
238 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
241 // Trusted Connections
242 if( ntohs(client_addr.sin_port) < 1024 )
244 // TODO: Make this runtime configurable
245 switch( ntohl( client_addr.sin_addr.s_addr ) )
247 case 0x7F000001: // 127.0.0.1 localhost
248 // case 0x825F0D00: // 130.95.13.0
249 case 0x825F0D04: // 130.95.13.4 merlo
250 // case 0x825F0D05: // 130.95.13.5 heathred (MR)
251 case 0x825F0D07: // 130.95.13.7 motsugo
252 case 0x825F0D11: // 130.95.13.17 mermaid
253 case 0x825F0D12: // 130.95.13.18 mussel
254 case 0x825F0D17: // 130.95.13.23 martello
255 case 0x825F0D2A: // 130.95.13.42 meersau
256 // case 0x825F0D42: // 130.95.13.66 heathred (Clubroom)
264 // TODO: Multithread this?
265 Server_HandleClient(client_socket, bTrusted);
267 close(client_socket);
271 void Server_Cleanup(void)
273 printf("\nClose(%i)\n", giServer_Socket);
274 close(giServer_Socket);
275 unlink("/var/run/dispsrv.pid");
279 * \brief Reads from a client socket and parses the command strings
280 * \param Socket Client socket number/handle
281 * \param bTrusted Is the client trusted?
283 void Server_HandleClient(int Socket, int bTrusted)
285 char inbuf[INPUT_BUFFER_SIZE];
287 int remspace = INPUT_BUFFER_SIZE-1;
291 memset(&clientInfo, 0, sizeof(clientInfo));
293 // Initialise Client info
294 clientInfo.Socket = Socket;
295 clientInfo.ID = giServer_NextClientID ++;
296 clientInfo.bIsTrusted = bTrusted;
297 clientInfo.EffectiveUID = -1;
302 * - The `buf` and `remspace` variables allow a line to span several
303 * calls to recv(), if a line is not completed in one recv() call
304 * it is saved to the beginning of `inbuf` and `buf` is updated to
307 // TODO: Use select() instead (to give a timeout)
308 while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
311 buf[bytes] = '\0'; // Allow us to use stdlib string functions on it
315 while( (eol = strchr(start, '\n')) )
319 Server_ParseClientCommand(&clientInfo, start);
324 // Check if there was an incomplete line
325 if( *start != '\0' ) {
326 int tailBytes = bytes - (start-buf);
327 // Roll back in buffer
328 memcpy(inbuf, start, tailBytes);
329 remspace -= tailBytes;
331 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
333 remspace = INPUT_BUFFER_SIZE - 1;
338 remspace = INPUT_BUFFER_SIZE - 1;
344 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
348 if(giDebugLevel >= 2) {
349 printf("Client %i: Disconnected\n", clientInfo.ID);
354 * \brief Parses a client command and calls the required helper function
355 * \param Client Pointer to client state structure
356 * \param CommandString Command from client (single line of the command)
357 * \return Heap String to return to the client
359 void Server_ParseClientCommand(tClient *Client, char *CommandString)
361 char *command, *args;
364 if( giDebugLevel >= 2 )
365 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
367 if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
369 if( command == NULL ) return ;
370 // Is this an error? (just ignore for now)
375 for( i = 0; i < NUM_COMMANDS; i++ )
377 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
378 if( giDebugLevel >= 2 )
379 Debug(Client, "CMD %s - \"%s\"", command, args);
380 gaServer_Commands[i].Function(Client, args);
385 sendf(Client->Socket, "400 Unknown Command\n");
392 * \brief Set client username
394 * Usage: USER <username>
396 void Server_Cmd_USER(tClient *Client, char *Args)
400 if( Server_int_ParseArgs(0, Args, &username, NULL) )
402 sendf(Client->Socket, "407 USER takes 1 argument\n");
408 Debug(Client, "Authenticating as '%s'", username);
412 free(Client->Username);
413 Client->Username = strdup(username);
416 // Create a salt (that changes if the username is changed)
417 // Yes, I know, I'm a little paranoid, but who isn't?
418 Client->Salt[0] = 0x21 + (rand()&0x3F);
419 Client->Salt[1] = 0x21 + (rand()&0x3F);
420 Client->Salt[2] = 0x21 + (rand()&0x3F);
421 Client->Salt[3] = 0x21 + (rand()&0x3F);
422 Client->Salt[4] = 0x21 + (rand()&0x3F);
423 Client->Salt[5] = 0x21 + (rand()&0x3F);
424 Client->Salt[6] = 0x21 + (rand()&0x3F);
425 Client->Salt[7] = 0x21 + (rand()&0x3F);
427 // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
428 sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
430 sendf(Client->Socket, "100 User Set\n");
435 * \brief Authenticate as a user
439 void Server_Cmd_PASS(tClient *Client, char *Args)
444 if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
446 sendf(Client->Socket, "407 PASS takes 1 argument\n");
450 // Pass on to cokebank
451 Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
453 if( Client->UID == -1 ) {
454 sendf(Client->Socket, "401 Auth Failure\n");
458 flags = Bank_GetFlags(Client->UID);
459 if( flags & USER_FLAG_DISABLED ) {
461 sendf(Client->Socket, "403 Account Disabled\n");
464 if( flags & USER_FLAG_INTERNAL ) {
466 sendf(Client->Socket, "403 Internal account\n");
470 Client->bIsAuthed = 1;
471 sendf(Client->Socket, "200 Auth OK\n");
475 * \brief Authenticate as a user without a password
477 * Usage: AUTOAUTH <user>
479 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
484 if( Server_int_ParseArgs(0, Args, &username, NULL) )
486 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
491 if( !Client->bIsTrusted ) {
493 Debug(Client, "Untrusted client attempting to AUTOAUTH");
494 sendf(Client->Socket, "401 Untrusted\n");
499 Client->UID = Bank_GetAcctByName( username, 0 );
500 if( Client->UID < 0 ) {
502 Debug(Client, "Unknown user '%s'", username);
503 sendf(Client->Socket, "403 Auth Failure\n");
507 userflags = Bank_GetFlags(Client->UID);
508 // You can't be an internal account
509 if( userflags & USER_FLAG_INTERNAL ) {
511 Debug(Client, "Autoauth as '%s', not allowed", username);
513 sendf(Client->Socket, "403 Account is internal\n");
518 if( userflags & USER_FLAG_DISABLED ) {
520 sendf(Client->Socket, "403 Account disabled\n");
526 free(Client->Username);
527 Client->Username = strdup(username);
529 Client->bIsAuthed = 1;
532 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
534 sendf(Client->Socket, "200 Auth OK\n");
538 * \brief Authenticate as a user using the IDENT protocol
542 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args)
546 const int ident_timeout = 5;
548 struct sockaddr_in client_addr;
551 if( Args != NULL && strlen(Args) ) {
552 sendf(Client->Socket, "407 AUTHIDENT takes no arguments\n");
556 // Check if trusted (only works with INET sockets at present)
557 len = sizeof(client_addr);
558 if ( ! getpeername(Client->Socket, (struct sockaddr*)&client_addr, &len) ) {
562 client_ip = client_addr.sin_addr.s_addr;
563 if ( ! (ntohl(client_ip) == 0x7F000001 || ( (ntohl(client_ip) & IDENT_TRUSTED_NETMASK) == IDENT_TRUSTED_NETWORK ) )) {
565 Debug(Client, "Untrusted client attempting to AUTHIDENT");
566 sendf(Client->Socket, "401 Untrusted\n");
570 // Get username via IDENT
571 username = ident_id(Client->Socket, ident_timeout);
573 sendf(Client->Socket, "403 Authentication failure: IDENT auth timed out\n");
577 Client->UID = Bank_GetAcctByName( username, 0 );
578 if( Client->UID < 0 ) {
580 Debug(Client, "Unknown user '%s'", username);
581 sendf(Client->Socket, "403 Authentication failure: unknown account\n");
586 userflags = Bank_GetFlags(Client->UID);
587 // You can't be an internal account
588 if( userflags & USER_FLAG_INTERNAL ) {
590 Debug(Client, "IDENT auth as '%s', not allowed", username);
592 sendf(Client->Socket, "403 Authentication failure: that account is internal\n");
598 if( userflags & USER_FLAG_DISABLED ) {
600 sendf(Client->Socket, "403 Authentication failure: account disabled\n");
607 free(Client->Username);
608 Client->Username = strdup(username);
610 Client->bIsAuthed = 1;
613 Debug(Client, "IDENT authenticated as '%s' (%i)", username, Client->UID);
616 sendf(Client->Socket, "200 Auth OK\n");
620 * \brief Set effective user
622 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
625 int eUserFlags, userFlags;
627 if( Server_int_ParseArgs(0, Args, &username, NULL) )
629 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
633 if( !strlen(Args) ) {
634 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
638 // Check authentication
639 if( !Client->bIsAuthed ) {
640 sendf(Client->Socket, "401 Not Authenticated\n");
644 // Check user permissions
645 userFlags = Bank_GetFlags(Client->UID);
646 if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
647 sendf(Client->Socket, "403 Not in coke\n");
652 Client->EffectiveUID = Bank_GetAcctByName(username, 0);
653 if( Client->EffectiveUID == -1 ) {
654 sendf(Client->Socket, "404 User not found\n");
658 // You can't be an internal account
659 if( !(userFlags & USER_FLAG_ADMIN) )
661 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
662 if( eUserFlags & USER_FLAG_INTERNAL ) {
663 Client->EffectiveUID = -1;
664 sendf(Client->Socket, "404 User not found\n");
667 // Disabled only avaliable to admins
668 if( eUserFlags & USER_FLAG_DISABLED ) {
669 Client->EffectiveUID = -1;
670 sendf(Client->Socket, "403 Account disabled\n");
675 sendf(Client->Socket, "200 User set\n");
679 * \brief Send an item status to the client
680 * \param Client Who to?
681 * \param Item Item to send
683 void Server_int_SendItem(tClient *Client, tItem *Item)
685 char *status = "avail";
687 if( Item->Handler->CanDispense )
689 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
691 case 0: status = "avail"; break;
692 case 1: status = "sold"; break;
694 case -1: status = "error"; break;
698 // KNOWN HACK: Naming a slot 'dead' disables it
699 if( strcmp(Item->Name, "dead") == 0 )
700 status = "sold"; // Another status?
702 sendf(Client->Socket,
703 "202 Item %s:%i %s %i %s\n",
704 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
709 * \brief Enumerate the items that the server knows about
711 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
715 if( Args != NULL && strlen(Args) ) {
716 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
722 for( i = 0; i < giNumItems; i ++ ) {
723 if( gaItems[i].bHidden ) continue;
727 sendf(Client->Socket, "201 Items %i\n", count);
729 for( i = 0; i < giNumItems; i ++ ) {
730 if( gaItems[i].bHidden ) continue;
731 Server_int_SendItem( Client, &gaItems[i] );
734 sendf(Client->Socket, "200 List end\n");
737 tItem *_GetItemFromString(char *String)
741 char *colon = strchr(String, ':');
753 for( i = 0; i < giNumHandlers; i ++ )
755 if( strcmp(gaHandlers[i]->Name, type) == 0) {
756 handler = gaHandlers[i];
765 for( i = 0; i < giNumItems; i ++ )
767 if( gaItems[i].Handler != handler ) continue;
768 if( gaItems[i].ID != num ) continue;
775 * \brief Fetch information on a specific item
777 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
782 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
783 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
786 item = _GetItemFromString(Args);
789 sendf(Client->Socket, "406 Bad Item ID\n");
793 Server_int_SendItem( Client, item );
796 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
803 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
804 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
808 if( !Client->bIsAuthed ) {
809 sendf(Client->Socket, "401 Not Authenticated\n");
813 item = _GetItemFromString(itemname);
815 sendf(Client->Socket, "406 Bad Item ID\n");
819 if( Client->EffectiveUID != -1 ) {
820 uid = Client->EffectiveUID;
826 switch( ret = DispenseItem( Client->UID, uid, item ) )
828 case 0: sendf(Client->Socket, "200 Dispense OK\n"); return ;
829 case 1: sendf(Client->Socket, "501 Unable to dispense\n"); return ;
830 case 2: sendf(Client->Socket, "402 Poor You\n"); return ;
832 sendf(Client->Socket, "500 Dispense Error (%i)\n", ret);
837 void Server_Cmd_REFUND(tClient *Client, char *Args)
840 int uid, price_override = 0;
841 char *username, *itemname, *price_str;
843 if( Server_int_ParseArgs(0, Args, &username, &itemname, &price_str, NULL) ) {
844 if( !itemname || price_str ) {
845 sendf(Client->Socket, "407 REFUND takes 2 or 3 arguments\n");
850 if( !Client->bIsAuthed ) {
851 sendf(Client->Socket, "401 Not Authenticated\n");
855 // Check user permissions
856 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
857 sendf(Client->Socket, "403 Not in coke\n");
861 uid = Bank_GetAcctByName(username, 0);
863 sendf(Client->Socket, "404 Unknown user\n");
867 item = _GetItemFromString(itemname);
869 sendf(Client->Socket, "406 Bad Item ID\n");
874 price_override = atoi(price_str);
876 switch( DispenseRefund( Client->UID, uid, item, price_override ) )
878 case 0: sendf(Client->Socket, "200 Item Refunded\n"); return ;
880 sendf(Client->Socket, "500 Dispense Error\n");
885 void Server_Cmd_GIVE(tClient *Client, char *Args)
887 char *recipient, *ammount, *reason;
892 if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
893 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
898 if( !Client->bIsAuthed ) {
899 sendf(Client->Socket, "401 Not Authenticated\n");
904 uid = Bank_GetAcctByName(recipient, 0);
906 sendf(Client->Socket, "404 Invalid target user\n");
910 // You can't alter an internal account
911 // if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
912 // sendf(Client->Socket, "404 Invalid target user\n");
917 iAmmount = atoi(ammount);
918 if( iAmmount <= 0 ) {
919 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
923 if( Client->EffectiveUID != -1 ) {
924 thisUid = Client->EffectiveUID;
927 thisUid = Client->UID;
931 switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
934 sendf(Client->Socket, "200 Give OK\n");
937 sendf(Client->Socket, "402 Poor You\n");
940 sendf(Client->Socket, "500 Unknown error\n");
945 void Server_Cmd_DONATE(tClient *Client, char *Args)
947 char *ammount, *reason;
952 if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
953 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
957 if( !Client->bIsAuthed ) {
958 sendf(Client->Socket, "401 Not Authenticated\n");
963 iAmmount = atoi(ammount);
964 if( iAmmount <= 0 ) {
965 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
969 // Handle effective users
970 if( Client->EffectiveUID != -1 ) {
971 thisUid = Client->EffectiveUID;
974 thisUid = Client->UID;
978 switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
981 sendf(Client->Socket, "200 Give OK\n");
984 sendf(Client->Socket, "402 Poor You\n");
987 sendf(Client->Socket, "500 Unknown error\n");
992 void Server_Cmd_ADD(tClient *Client, char *Args)
994 char *user, *ammount, *reason;
998 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
999 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
1003 if( !Client->bIsAuthed ) {
1004 sendf(Client->Socket, "401 Not Authenticated\n");
1008 // Check user permissions
1009 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
1010 sendf(Client->Socket, "403 Not in coke\n");
1015 if( strcmp( Client->Username, "root" ) == 0 ) {
1016 // Allow adding for new users
1017 if( strcmp(reason, "treasurer: new user") != 0 ) {
1018 sendf(Client->Socket, "403 Root may not add\n");
1025 if( strstr(reason, "refund") != NULL || strstr(reason, "misdispense") != NULL )
1027 sendf(Client->Socket, "499 Don't use `dispense acct` for refunds, use `dispense refund` (and `dispense -G` to get item IDs)\n");
1033 uid = Bank_GetAcctByName(user, 0);
1035 sendf(Client->Socket, "404 Invalid user\n");
1039 // You can't alter an internal account
1040 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
1042 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
1043 sendf(Client->Socket, "404 Invalid user\n");
1046 // TODO: Maybe disallow changes to disabled?
1050 iAmmount = atoi(ammount);
1051 if( iAmmount == 0 && ammount[0] != '0' ) {
1052 sendf(Client->Socket, "407 Invalid Argument\n");
1057 switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
1060 sendf(Client->Socket, "200 Add OK\n");
1063 sendf(Client->Socket, "402 Poor Guy\n");
1066 sendf(Client->Socket, "500 Unknown error\n");
1071 void Server_Cmd_SET(tClient *Client, char *Args)
1073 char *user, *ammount, *reason;
1077 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
1078 sendf(Client->Socket, "407 SET takes 3 arguments\n");
1082 if( !Client->bIsAuthed ) {
1083 sendf(Client->Socket, "401 Not Authenticated\n");
1087 // Check user permissions
1088 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1089 sendf(Client->Socket, "403 Not an admin\n");
1094 uid = Bank_GetAcctByName(user, 0);
1096 sendf(Client->Socket, "404 Invalid user\n");
1101 iAmmount = atoi(ammount);
1102 if( iAmmount == 0 && ammount[0] != '0' ) {
1103 sendf(Client->Socket, "407 Invalid Argument\n");
1108 switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
1111 sendf(Client->Socket, "200 Add OK\n");
1114 sendf(Client->Socket, "402 Poor Guy\n");
1117 sendf(Client->Socket, "500 Unknown error\n");
1122 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
1126 int maxBal = INT_MAX, minBal = INT_MIN;
1127 int flagMask = 0, flagVal = 0;
1128 int sort = BANK_ITFLAG_SORT_NAME;
1129 time_t lastSeenAfter=0, lastSeenBefore=0;
1131 int flags; // Iterator flags
1132 int balValue; // Balance value for iterator
1133 time_t timeValue; // Time value for iterator
1136 if( Args && strlen(Args) )
1138 char *space = Args, *type, *val;
1142 while(*type == ' ') type ++;
1144 space = strchr(space, ' ');
1145 if(space) *space = '\0';
1148 val = strchr(type, ':');
1155 if( strcmp(type, "min_balance") == 0 ) {
1158 // - Maximum Balance
1159 else if( strcmp(type, "max_balance") == 0 ) {
1163 else if( strcmp(type, "flags") == 0 ) {
1164 if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
1167 // - Last seen before timestamp
1168 else if( strcmp(type, "last_seen_before") == 0 ) {
1169 lastSeenAfter = atoll(val);
1171 // - Last seen after timestamp
1172 else if( strcmp(type, "last_seen_after") == 0 ) {
1173 lastSeenAfter = atoll(val);
1176 else if( strcmp(type, "sort") == 0 ) {
1177 char *dash = strchr(val, '-');
1182 if( strcmp(val, "name") == 0 ) {
1183 sort = BANK_ITFLAG_SORT_NAME;
1185 else if( strcmp(val, "balance") == 0 ) {
1186 sort = BANK_ITFLAG_SORT_BAL;
1188 else if( strcmp(val, "lastseen") == 0 ) {
1189 sort = BANK_ITFLAG_SORT_LASTSEEN;
1192 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1195 // Handle sort direction
1197 if( strcmp(dash, "desc") == 0 ) {
1198 sort |= BANK_ITFLAG_REVSORT;
1201 sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1208 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1215 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1221 *space = ' '; // Repair (to be nice)
1223 while(*space == ' ') space ++;
1229 if( maxBal != INT_MAX ) {
1230 flags = sort|BANK_ITFLAG_MAXBALANCE;
1233 else if( minBal != INT_MIN ) {
1234 flags = sort|BANK_ITFLAG_MINBALANCE;
1241 if( lastSeenBefore ) {
1242 timeValue = lastSeenBefore;
1243 flags |= BANK_ITFLAG_SEENBEFORE;
1245 else if( lastSeenAfter ) {
1246 timeValue = lastSeenAfter;
1247 flags |= BANK_ITFLAG_SEENAFTER;
1252 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1254 // Get return number
1255 while( (i = Bank_IteratorNext(it)) != -1 )
1257 int bal = Bank_GetBalance(i);
1259 if( bal == INT_MIN ) continue;
1261 if( bal < minBal ) continue;
1262 if( bal > maxBal ) continue;
1267 Bank_DelIterator(it);
1270 sendf(Client->Socket, "201 Users %i\n", numRet);
1274 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1276 while( (i = Bank_IteratorNext(it)) != -1 )
1278 int bal = Bank_GetBalance(i);
1280 if( bal == INT_MIN ) continue;
1282 if( bal < minBal ) continue;
1283 if( bal > maxBal ) continue;
1285 _SendUserInfo(Client, i);
1288 Bank_DelIterator(it);
1290 sendf(Client->Socket, "200 List End\n");
1293 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1299 if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1300 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1304 if( giDebugLevel ) Debug(Client, "User Info '%s'", user);
1307 uid = Bank_GetAcctByName(user, 0);
1309 if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1311 sendf(Client->Socket, "404 Invalid user\n");
1315 _SendUserInfo(Client, uid);
1318 void _SendUserInfo(tClient *Client, int UserID)
1320 char *type, *disabled="", *door="";
1321 int flags = Bank_GetFlags(UserID);
1323 if( flags & USER_FLAG_INTERNAL ) {
1326 else if( flags & USER_FLAG_COKE ) {
1327 if( flags & USER_FLAG_ADMIN )
1328 type = "coke,admin";
1332 else if( flags & USER_FLAG_ADMIN ) {
1339 if( flags & USER_FLAG_DISABLED )
1340 disabled = ",disabled";
1341 if( flags & USER_FLAG_DOORGROUP )
1344 // TODO: User flags/type
1346 Client->Socket, "202 User %s %i %s%s%s\n",
1347 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1348 type, disabled, door
1352 void Server_Cmd_USERADD(tClient *Client, char *Args)
1357 if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1358 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1362 // Check authentication
1363 if( !Client->bIsAuthed ) {
1364 sendf(Client->Socket, "401 Not Authenticated\n");
1368 // Check permissions
1369 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1370 sendf(Client->Socket, "403 Not a coke admin\n");
1374 // Try to create user
1375 if( Bank_CreateAcct(username) == -1 ) {
1376 sendf(Client->Socket, "404 User exists\n");
1381 char *thisName = Bank_GetAcctName(Client->UID);
1382 Log_Info("Account '%s' created by '%s'", username, thisName);
1386 sendf(Client->Socket, "200 User Added\n");
1389 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1391 char *username, *flags, *reason=NULL;
1392 int mask=0, value=0;
1396 if( Server_int_ParseArgs(1, Args, &username, &flags, &reason, NULL) ) {
1398 sendf(Client->Socket, "407 USER_FLAGS takes at least 2 arguments\n");
1404 // Check authentication
1405 if( !Client->bIsAuthed ) {
1406 sendf(Client->Socket, "401 Not Authenticated\n");
1410 // Check permissions
1411 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1412 sendf(Client->Socket, "403 Not a coke admin\n");
1417 uid = Bank_GetAcctByName(username, 0);
1419 sendf(Client->Socket, "404 User '%s' not found\n", username);
1424 if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1428 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1429 uid, username, mask, value);
1432 Bank_SetFlags(uid, mask, value);
1435 Log_Info("Updated '%s' with flag set '%s' by '%s' - Reason: %s",
1436 username, flags, Client->Username, reason);
1439 sendf(Client->Socket, "200 User Updated\n");
1442 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args)
1444 char *itemname, *price_str, *description;
1448 if( Server_int_ParseArgs(1, Args, &itemname, &price_str, &description, NULL) ) {
1449 sendf(Client->Socket, "407 UPDATE_ITEM takes 3 arguments\n");
1453 if( !Client->bIsAuthed ) {
1454 sendf(Client->Socket, "401 Not Authenticated\n");
1458 // Check user permissions
1459 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
1460 sendf(Client->Socket, "403 Not in coke\n");
1464 item = _GetItemFromString(itemname);
1466 // TODO: Create item?
1467 sendf(Client->Socket, "406 Bad Item ID\n");
1471 price = atoi(price_str);
1472 if( price <= 0 && price_str[0] != '0' ) {
1473 sendf(Client->Socket, "407 Invalid price set\n");
1476 switch( DispenseUpdateItem( Client->UID, item, description, price ) )
1480 sendf(Client->Socket, "200 Item updated\n");
1487 // --- INTERNAL HELPERS ---
1488 void Debug(tClient *Client, const char *Format, ...)
1491 //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1492 printf("[%i] ", Client->ID);
1493 va_start(args, Format);
1494 vprintf(Format, args);
1499 int sendf(int Socket, const char *Format, ...)
1504 va_start(args, Format);
1505 len = vsnprintf(NULL, 0, Format, args);
1510 va_start(args, Format);
1511 vsnprintf(buf, len+1, Format, args);
1514 #if DEBUG_TRACE_CLIENT
1515 printf("sendf: %s", buf);
1518 return send(Socket, buf, len, 0);
1522 // Takes a series of char *'s in
1524 * \brief Parse space-separated entries into
1526 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1531 va_start(args, ArgStr);
1536 while( (dest = va_arg(args, char **)) )
1542 savedChar = *ArgStr;
1544 while( (dest = va_arg(args, char **)) )
1546 // Trim leading spaces
1547 while( *ArgStr == ' ' || *ArgStr == '\t' )
1550 // ... oops, not enough arguments
1551 if( *ArgStr == '\0' )
1553 // NULL unset arguments
1556 } while( (dest = va_arg(args, char **)) );
1561 if( *ArgStr == '"' )
1566 while( *ArgStr && *ArgStr != '"' )
1573 // Read until a space
1574 while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1577 savedChar = *ArgStr; // savedChar is used to un-mangle the last string
1583 // Oops, extra arguments, and greedy not set
1584 if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1591 *ArgStr = savedChar;
1594 return 0; // Success!
1597 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1604 {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1605 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1606 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1607 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1608 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1610 const int ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1622 while( *Str == ' ' ) Str ++; // Eat whitespace
1623 space = strchr(Str, ','); // Find the end of the flag
1629 // Check for inversion/removal
1630 if( *Str == '!' || *Str == '-' ) {
1634 else if( *Str == '+' ) {
1638 // Check flag values
1639 for( i = 0; i < ciNumFlags; i ++ )
1641 if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1642 *Mask |= cFLAGS[i].Mask;
1643 *Value &= ~cFLAGS[i].Mask;
1645 *Value |= cFLAGS[i].Value;
1651 if( i == ciNumFlags ) {
1653 strncpy(val, Str, len+1);
1654 sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);