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_*
21 #include <signal.h> // Signal handling
22 #include <ident.h> // AUTHIDENT
23 #include <time.h> // time(2)
25 #define DEBUG_TRACE_CLIENT 0
26 #define HACK_NO_REFUNDS 1
29 #define MAX_CONNECTION_QUEUE 5
30 #define INPUT_BUFFER_SIZE 256
31 #define CLIENT_TIMEOUT 10 // Seconds
33 #define HASH_TYPE SHA1
34 #define HASH_LENGTH 20
36 #define MSG_STR_TOO_LONG "499 Command too long (limit "EXPSTR(INPUT_BUFFER_SIZE)")\n"
38 #define IDENT_TRUSTED_NETWORK 0x825F0D00
39 #define IDENT_TRUSTED_NETMASK 0xFFFFFFC0
42 typedef struct sClient
44 int Socket; // Client socket ID
47 int bIsTrusted; // Is the connection from a trusted host/port
58 void Server_Start(void);
59 void Server_Cleanup(void);
60 void Server_HandleClient(int Socket, int bTrusted);
61 void Server_ParseClientCommand(tClient *Client, char *CommandString);
63 void Server_Cmd_USER(tClient *Client, char *Args);
64 void Server_Cmd_PASS(tClient *Client, char *Args);
65 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args);
66 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args);
67 void Server_Cmd_SETEUSER(tClient *Client, char *Args);
68 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args);
69 void Server_Cmd_ITEMINFO(tClient *Client, char *Args);
70 void Server_Cmd_DISPENSE(tClient *Client, char *Args);
71 void Server_Cmd_REFUND(tClient *Client, char *Args);
72 void Server_Cmd_GIVE(tClient *Client, char *Args);
73 void Server_Cmd_DONATE(tClient *Client, char *Args);
74 void Server_Cmd_ADD(tClient *Client, char *Args);
75 void Server_Cmd_SET(tClient *Client, char *Args);
76 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args);
77 void Server_Cmd_USERINFO(tClient *Client, char *Args);
78 void _SendUserInfo(tClient *Client, int UserID);
79 void Server_Cmd_USERADD(tClient *Client, char *Args);
80 void Server_Cmd_USERFLAGS(tClient *Client, char *Args);
81 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args);
83 void Debug(tClient *Client, const char *Format, ...);
84 int sendf(int Socket, const char *Format, ...);
85 int Server_int_ParseArgs(int bUseLongArg, char *ArgStr, ...);
86 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value);
90 const struct sClientCommand {
92 void (*Function)(tClient *Client, char *Arguments);
93 } gaServer_Commands[] = {
94 {"USER", Server_Cmd_USER},
95 {"PASS", Server_Cmd_PASS},
96 {"AUTOAUTH", Server_Cmd_AUTOAUTH},
97 {"AUTHIDENT", Server_Cmd_AUTHIDENT},
98 {"SETEUSER", Server_Cmd_SETEUSER},
99 {"ENUM_ITEMS", Server_Cmd_ENUMITEMS},
100 {"ITEM_INFO", Server_Cmd_ITEMINFO},
101 {"DISPENSE", Server_Cmd_DISPENSE},
102 {"REFUND", Server_Cmd_REFUND},
103 {"GIVE", Server_Cmd_GIVE},
104 {"DONATE", Server_Cmd_DONATE},
105 {"ADD", Server_Cmd_ADD},
106 {"SET", Server_Cmd_SET},
107 {"ENUM_USERS", Server_Cmd_ENUMUSERS},
108 {"USER_INFO", Server_Cmd_USERINFO},
109 {"USER_ADD", Server_Cmd_USERADD},
110 {"USER_FLAGS", Server_Cmd_USERFLAGS},
111 {"UPDATE_ITEM", Server_Cmd_UPDATEITEM}
113 #define NUM_COMMANDS ((int)(sizeof(gaServer_Commands)/sizeof(gaServer_Commands[0])))
117 int giServer_Port = 11020;
118 int gbServer_RunInBackground = 0;
119 char *gsServer_LogFile = "/var/log/dispsrv.log";
120 char *gsServer_ErrorLog = "/var/log/dispsrv.err";
122 int giServer_Socket; // Server socket
123 int giServer_NextClientID = 1; // Debug client ID
128 * \brief Open listenting socket and serve connections
130 void Server_Start(void)
133 struct sockaddr_in server_addr, client_addr;
135 atexit(Server_Cleanup);
136 // Ignore SIGPIPE (stops crashes when the client exits early)
137 signal(SIGPIPE, SIG_IGN);
140 giServer_Socket = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
141 if( giServer_Socket < 0 ) {
142 fprintf(stderr, "ERROR: Unable to create server socket\n");
146 // Make listen address
147 memset(&server_addr, 0, sizeof(server_addr));
148 server_addr.sin_family = AF_INET; // Internet Socket
149 server_addr.sin_addr.s_addr = htonl(INADDR_ANY); // Listen on all interfaces
150 server_addr.sin_port = htons(giServer_Port); // Port
153 if( bind(giServer_Socket, (struct sockaddr *) &server_addr, sizeof(server_addr)) < 0 ) {
154 fprintf(stderr, "ERROR: Unable to bind to 0.0.0.0:%i\n", giServer_Port);
159 // Fork into background
160 if( gbServer_RunInBackground )
164 fprintf(stderr, "ERROR: Unable to fork\n");
165 perror("fork background");
170 printf("Forked child %i\n", pid);
174 // - Sort out stdin/stdout
176 dup2( open("/dev/null", O_RDONLY, 0644), STDIN_FILENO );
177 dup2( open(gsServer_LogFile, O_CREAT|O_APPEND, 0644), STDOUT_FILENO );
178 dup2( open(gsServer_ErrorLog, O_CREAT|O_APPEND, 0644), STDERR_FILENO );
180 freopen("/dev/null", "r", stdin);
181 freopen(gsServer_LogFile, "a", stdout);
182 freopen(gsServer_ErrorLog, "a", stderr);
183 fprintf(stdout, "OpenDispense 2 Server Started at %lld\n", (long long)time(NULL));
184 fprintf(stderr, "OpenDispense 2 Server Started at %lld\n", (long long)time(NULL));
188 // Start the helper thread
189 StartPeriodicThread();
192 if( listen(giServer_Socket, MAX_CONNECTION_QUEUE) < 0 ) {
193 fprintf(stderr, "ERROR: Unable to listen to socket\n");
198 printf("Listening on 0.0.0.0:%i\n", giServer_Port);
202 FILE *fp = fopen("/var/run/dispsrv.pid", "w");
204 fprintf(fp, "%i", getpid());
211 uint len = sizeof(client_addr);
214 // Accept a connection
215 client_socket = accept(giServer_Socket, (struct sockaddr *) &client_addr, &len);
216 if(client_socket < 0) {
217 fprintf(stderr, "ERROR: Unable to accept client connection\n");
221 // Set a timeout on the user conneciton
224 tv.tv_sec = CLIENT_TIMEOUT;
226 if( setsockopt(client_socket, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv)) )
228 perror("setsockopt");
233 // Debug: Print the connection string
234 if(giDebugLevel >= 2) {
235 char ipstr[INET_ADDRSTRLEN];
236 inet_ntop(AF_INET, &client_addr.sin_addr, ipstr, INET_ADDRSTRLEN);
237 printf("Client connection from %s:%i\n",
238 ipstr, ntohs(client_addr.sin_port));
241 // Doesn't matter what, localhost is trusted
242 if( ntohl( client_addr.sin_addr.s_addr ) == 0x7F000001 )
245 // Trusted Connections
246 if( ntohs(client_addr.sin_port) < 1024 )
248 // TODO: Make this runtime configurable
249 switch( ntohl( client_addr.sin_addr.s_addr ) )
251 case 0x7F000001: // 127.0.0.1 localhost
252 // case 0x825F0D00: // 130.95.13.0
253 case 0x825F0D04: // 130.95.13.4 merlo
254 // case 0x825F0D05: // 130.95.13.5 heathred (MR)
255 case 0x825F0D07: // 130.95.13.7 motsugo
256 case 0x825F0D11: // 130.95.13.17 mermaid
257 case 0x825F0D12: // 130.95.13.18 mussel
258 case 0x825F0D17: // 130.95.13.23 martello
259 case 0x825F0D2A: // 130.95.13.42 meersau
260 // case 0x825F0D42: // 130.95.13.66 heathred (Clubroom)
268 // TODO: Multithread this?
269 Server_HandleClient(client_socket, bTrusted);
271 close(client_socket);
275 void Server_Cleanup(void)
277 printf("\nClose(%i)\n", giServer_Socket);
278 close(giServer_Socket);
279 unlink("/var/run/dispsrv.pid");
283 * \brief Reads from a client socket and parses the command strings
284 * \param Socket Client socket number/handle
285 * \param bTrusted Is the client trusted?
287 void Server_HandleClient(int Socket, int bTrusted)
289 char inbuf[INPUT_BUFFER_SIZE];
291 int remspace = INPUT_BUFFER_SIZE-1;
295 memset(&clientInfo, 0, sizeof(clientInfo));
297 // Initialise Client info
298 clientInfo.Socket = Socket;
299 clientInfo.ID = giServer_NextClientID ++;
300 clientInfo.bIsTrusted = bTrusted;
301 clientInfo.EffectiveUID = -1;
306 * - The `buf` and `remspace` variables allow a line to span several
307 * calls to recv(), if a line is not completed in one recv() call
308 * it is saved to the beginning of `inbuf` and `buf` is updated to
311 // TODO: Use select() instead (to give a timeout)
312 while( (bytes = recv(Socket, buf, remspace, 0)) > 0 )
315 buf[bytes] = '\0'; // Allow us to use stdlib string functions on it
319 while( (eol = strchr(start, '\n')) )
323 Server_ParseClientCommand(&clientInfo, start);
328 // Check if there was an incomplete line
329 if( *start != '\0' ) {
330 int tailBytes = bytes - (start-buf);
331 // Roll back in buffer
332 memcpy(inbuf, start, tailBytes);
333 remspace -= tailBytes;
335 send(Socket, MSG_STR_TOO_LONG, sizeof(MSG_STR_TOO_LONG), 0);
337 remspace = INPUT_BUFFER_SIZE - 1;
342 remspace = INPUT_BUFFER_SIZE - 1;
348 fprintf(stderr, "ERROR: Unable to recieve from client on socket %i\n", Socket);
352 if(giDebugLevel >= 2) {
353 printf("Client %i: Disconnected\n", clientInfo.ID);
358 * \brief Parses a client command and calls the required helper function
359 * \param Client Pointer to client state structure
360 * \param CommandString Command from client (single line of the command)
361 * \return Heap String to return to the client
363 void Server_ParseClientCommand(tClient *Client, char *CommandString)
365 char *command, *args;
368 if( giDebugLevel >= 2 )
369 Debug(Client, "Server_ParseClientCommand: (CommandString = '%s')", CommandString);
371 if( Server_int_ParseArgs(1, CommandString, &command, &args, NULL) )
373 if( command == NULL ) return ;
374 // Is this an error? (just ignore for now)
379 for( i = 0; i < NUM_COMMANDS; i++ )
381 if(strcmp(command, gaServer_Commands[i].Name) == 0) {
382 if( giDebugLevel >= 2 )
383 Debug(Client, "CMD %s - \"%s\"", command, args);
384 gaServer_Commands[i].Function(Client, args);
389 sendf(Client->Socket, "400 Unknown Command\n");
396 * \brief Set client username
398 * Usage: USER <username>
400 void Server_Cmd_USER(tClient *Client, char *Args)
404 if( Server_int_ParseArgs(0, Args, &username, NULL) )
406 sendf(Client->Socket, "407 USER takes 1 argument\n");
412 Debug(Client, "Authenticating as '%s'", username);
416 free(Client->Username);
417 Client->Username = strdup(username);
420 // Create a salt (that changes if the username is changed)
421 // Yes, I know, I'm a little paranoid, but who isn't?
422 Client->Salt[0] = 0x21 + (rand()&0x3F);
423 Client->Salt[1] = 0x21 + (rand()&0x3F);
424 Client->Salt[2] = 0x21 + (rand()&0x3F);
425 Client->Salt[3] = 0x21 + (rand()&0x3F);
426 Client->Salt[4] = 0x21 + (rand()&0x3F);
427 Client->Salt[5] = 0x21 + (rand()&0x3F);
428 Client->Salt[6] = 0x21 + (rand()&0x3F);
429 Client->Salt[7] = 0x21 + (rand()&0x3F);
431 // TODO: Also send hash type to use, (SHA1 or crypt according to [DAA])
432 sendf(Client->Socket, "100 SALT %s\n", Client->Salt);
434 sendf(Client->Socket, "100 User Set\n");
439 * \brief Authenticate as a user
443 void Server_Cmd_PASS(tClient *Client, char *Args)
448 if( Server_int_ParseArgs(0, Args, &passhash, NULL) )
450 sendf(Client->Socket, "407 PASS takes 1 argument\n");
454 // Pass on to cokebank
455 Client->UID = Bank_GetUserAuth(Client->Salt, Client->Username, passhash);
457 if( Client->UID == -1 ) {
458 sendf(Client->Socket, "401 Auth Failure\n");
462 flags = Bank_GetFlags(Client->UID);
463 if( flags & USER_FLAG_DISABLED ) {
465 sendf(Client->Socket, "403 Account Disabled\n");
468 if( flags & USER_FLAG_INTERNAL ) {
470 sendf(Client->Socket, "403 Internal account\n");
474 Client->bIsAuthed = 1;
475 sendf(Client->Socket, "200 Auth OK\n");
479 * \brief Authenticate as a user without a password
481 * Usage: AUTOAUTH <user>
483 void Server_Cmd_AUTOAUTH(tClient *Client, char *Args)
488 if( Server_int_ParseArgs(0, Args, &username, NULL) )
490 sendf(Client->Socket, "407 AUTOAUTH takes 1 argument\n");
495 if( !Client->bIsTrusted ) {
497 Debug(Client, "Untrusted client attempting to AUTOAUTH");
498 sendf(Client->Socket, "401 Untrusted\n");
503 Client->UID = Bank_GetAcctByName( username, 0 );
504 if( Client->UID < 0 ) {
506 Debug(Client, "Unknown user '%s'", username);
507 sendf(Client->Socket, "403 Auth Failure\n");
511 userflags = Bank_GetFlags(Client->UID);
512 // You can't be an internal account
513 if( userflags & USER_FLAG_INTERNAL ) {
515 Debug(Client, "Autoauth as '%s', not allowed", username);
517 sendf(Client->Socket, "403 Account is internal\n");
522 if( userflags & USER_FLAG_DISABLED ) {
524 sendf(Client->Socket, "403 Account disabled\n");
530 free(Client->Username);
531 Client->Username = strdup(username);
533 Client->bIsAuthed = 1;
536 Debug(Client, "Auto authenticated as '%s' (%i)", username, Client->UID);
538 sendf(Client->Socket, "200 Auth OK\n");
542 * \brief Authenticate as a user using the IDENT protocol
546 void Server_Cmd_AUTHIDENT(tClient *Client, char *Args)
550 const int ident_timeout = 5;
552 struct sockaddr_in client_addr;
555 if( Args != NULL && strlen(Args) ) {
556 sendf(Client->Socket, "407 AUTHIDENT takes no arguments\n");
560 // Check if trusted (only works with INET sockets at present)
561 len = sizeof(client_addr);
562 if( getpeername(Client->Socket, (struct sockaddr*)&client_addr, &len) == -1 ) {
563 Debug(Client, "500 getpeername() failed\n");
564 perror("Getting AUTHIDENT peer name");
565 sendf(Client->Socket, "500 getpeername() failed\n");
569 client_ip = client_addr.sin_addr.s_addr;
570 if(giDebugLevel >= 2) {
571 Debug(Client, "client_ip = %x, ntohl(client_ip) = %x", client_ip, ntohl(client_ip));
573 if( ntohl(client_ip) != 0x7F000001 && (ntohl(client_ip) & IDENT_TRUSTED_NETMASK) != IDENT_TRUSTED_NETWORK ) {
575 Debug(Client, "Untrusted client attempting to AUTHIDENT");
576 sendf(Client->Socket, "401 Untrusted\n");
580 // Get username via IDENT
581 username = ident_id(Client->Socket, ident_timeout);
583 sendf(Client->Socket, "403 Authentication failure: IDENT auth timed out\n");
588 Client->UID = Bank_GetAcctByName( username, 0 );
589 if( Client->UID < 0 ) {
591 Debug(Client, "Unknown user '%s'", username);
592 sendf(Client->Socket, "403 Authentication failure: unknown account\n");
597 userflags = Bank_GetFlags(Client->UID);
598 // You can't be an internal account
599 if( userflags & USER_FLAG_INTERNAL ) {
601 Debug(Client, "IDENT auth as '%s', not allowed", username);
603 sendf(Client->Socket, "403 Authentication failure: that account is internal\n");
609 if( userflags & USER_FLAG_DISABLED ) {
611 sendf(Client->Socket, "403 Authentication failure: account disabled\n");
618 free(Client->Username);
619 Client->Username = strdup(username);
621 Client->bIsAuthed = 1;
624 Debug(Client, "IDENT authenticated as '%s' (%i)", username, Client->UID);
627 sendf(Client->Socket, "200 Auth OK\n");
631 * \brief Set effective user
633 void Server_Cmd_SETEUSER(tClient *Client, char *Args)
636 int eUserFlags, userFlags;
638 if( Server_int_ParseArgs(0, Args, &username, NULL) )
640 sendf(Client->Socket, "407 SETEUSER takes 1 argument\n");
644 if( !strlen(Args) ) {
645 sendf(Client->Socket, "407 SETEUSER expects an argument\n");
649 // Check authentication
650 if( !Client->bIsAuthed ) {
651 sendf(Client->Socket, "401 Not Authenticated\n");
655 // Check user permissions
656 userFlags = Bank_GetFlags(Client->UID);
657 if( !(userFlags & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
658 sendf(Client->Socket, "403 Not in coke\n");
663 Client->EffectiveUID = Bank_GetAcctByName(username, 0);
664 if( Client->EffectiveUID == -1 ) {
665 sendf(Client->Socket, "404 User not found\n");
669 // You can't be an internal account
670 if( !(userFlags & USER_FLAG_ADMIN) )
672 eUserFlags = Bank_GetFlags(Client->EffectiveUID);
673 if( eUserFlags & USER_FLAG_INTERNAL ) {
674 Client->EffectiveUID = -1;
675 sendf(Client->Socket, "404 User not found\n");
678 // Disabled only avaliable to admins
679 if( eUserFlags & USER_FLAG_DISABLED ) {
680 Client->EffectiveUID = -1;
681 sendf(Client->Socket, "403 Account disabled\n");
687 if( userFlags & USER_FLAG_DISABLED ) {
689 sendf(Client->Socket, "403 Account disabled\n");
693 sendf(Client->Socket, "200 User set\n");
697 * \brief Send an item status to the client
698 * \param Client Who to?
699 * \param Item Item to send
701 void Server_int_SendItem(tClient *Client, tItem *Item)
703 char *status = "avail";
705 if( Item->Handler->CanDispense )
707 switch(Item->Handler->CanDispense(Client->UID, Item->ID))
709 case 0: status = "avail"; break;
710 case 1: status = "sold"; break;
712 case -1: status = "error"; break;
716 if( Item->Price == 0 )
718 // KNOWN HACK: Naming a slot 'dead' disables it
719 if( strcmp(Item->Name, "dead") == 0 )
720 status = "sold"; // Another status?
722 sendf(Client->Socket,
723 "202 Item %s:%i %s %i %s\n",
724 Item->Handler->Name, Item->ID, status, Item->Price, Item->Name
729 * \brief Enumerate the items that the server knows about
731 void Server_Cmd_ENUMITEMS(tClient *Client, char *Args)
735 if( Args != NULL && strlen(Args) ) {
736 sendf(Client->Socket, "407 ENUM_ITEMS takes no arguments\n");
742 for( i = 0; i < giNumItems; i ++ ) {
743 if( gaItems[i].bHidden ) continue;
747 sendf(Client->Socket, "201 Items %i\n", count);
749 for( i = 0; i < giNumItems; i ++ ) {
750 if( gaItems[i].bHidden ) continue;
751 Server_int_SendItem( Client, &gaItems[i] );
754 sendf(Client->Socket, "200 List end\n");
757 tItem *_GetItemFromString(char *String)
761 char *colon = strchr(String, ':');
773 for( i = 0; i < giNumHandlers; i ++ )
775 if( strcmp(gaHandlers[i]->Name, type) == 0) {
776 handler = gaHandlers[i];
785 for( i = 0; i < giNumItems; i ++ )
787 if( gaItems[i].Handler != handler ) continue;
788 if( gaItems[i].ID != num ) continue;
795 * \brief Fetch information on a specific item
797 void Server_Cmd_ITEMINFO(tClient *Client, char *Args)
802 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
803 sendf(Client->Socket, "407 ITEMINFO takes 1 argument\n");
806 item = _GetItemFromString(Args);
809 sendf(Client->Socket, "406 Bad Item ID\n");
813 Server_int_SendItem( Client, item );
816 void Server_Cmd_DISPENSE(tClient *Client, char *Args)
823 if( Server_int_ParseArgs(0, Args, &itemname, NULL) ) {
824 sendf(Client->Socket, "407 DISPENSE takes only 1 argument\n");
828 if( !Client->bIsAuthed ) {
829 sendf(Client->Socket, "401 Not Authenticated\n");
833 item = _GetItemFromString(itemname);
835 sendf(Client->Socket, "406 Bad Item ID\n");
839 if( Client->EffectiveUID != -1 ) {
840 uid = Client->EffectiveUID;
846 switch( ret = DispenseItem( Client->UID, uid, item ) )
848 case 0: sendf(Client->Socket, "200 Dispense OK\n"); return ;
849 case 1: sendf(Client->Socket, "501 Unable to dispense\n"); return ;
850 case 2: sendf(Client->Socket, "402 Poor You\n"); return ;
852 sendf(Client->Socket, "500 Dispense Error (%i)\n", ret);
857 void Server_Cmd_REFUND(tClient *Client, char *Args)
860 int uid, price_override = 0;
861 char *username, *itemname, *price_str;
863 if( Server_int_ParseArgs(0, Args, &username, &itemname, &price_str, NULL) ) {
864 if( !itemname || price_str ) {
865 sendf(Client->Socket, "407 REFUND takes 2 or 3 arguments\n");
870 if( !Client->bIsAuthed ) {
871 sendf(Client->Socket, "401 Not Authenticated\n");
875 // Check user permissions
876 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
877 sendf(Client->Socket, "403 Not in coke\n");
881 uid = Bank_GetAcctByName(username, 0);
883 sendf(Client->Socket, "404 Unknown user\n");
887 item = _GetItemFromString(itemname);
889 sendf(Client->Socket, "406 Bad Item ID\n");
894 price_override = atoi(price_str);
896 switch( DispenseRefund( Client->UID, uid, item, price_override ) )
898 case 0: sendf(Client->Socket, "200 Item Refunded\n"); return ;
900 sendf(Client->Socket, "500 Dispense Error\n");
905 void Server_Cmd_GIVE(tClient *Client, char *Args)
907 char *recipient, *ammount, *reason;
912 if( Server_int_ParseArgs(1, Args, &recipient, &ammount, &reason, NULL) ) {
913 sendf(Client->Socket, "407 GIVE takes only 3 arguments\n");
918 if( !Client->bIsAuthed ) {
919 sendf(Client->Socket, "401 Not Authenticated\n");
924 uid = Bank_GetAcctByName(recipient, 0);
926 sendf(Client->Socket, "404 Invalid target user\n");
930 // You can't alter an internal account
931 // if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
932 // sendf(Client->Socket, "404 Invalid target user\n");
937 iAmmount = atoi(ammount);
938 if( iAmmount <= 0 ) {
939 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
943 if( Client->EffectiveUID != -1 ) {
944 thisUid = Client->EffectiveUID;
947 thisUid = Client->UID;
951 switch( DispenseGive(Client->UID, thisUid, uid, iAmmount, reason) )
954 sendf(Client->Socket, "200 Give OK\n");
957 sendf(Client->Socket, "402 Poor You\n");
960 sendf(Client->Socket, "500 Unknown error\n");
965 void Server_Cmd_DONATE(tClient *Client, char *Args)
967 char *ammount, *reason;
972 if( Server_int_ParseArgs(1, Args, &ammount, &reason, NULL) ) {
973 sendf(Client->Socket, "407 DONATE takes 2 arguments\n");
977 if( !Client->bIsAuthed ) {
978 sendf(Client->Socket, "401 Not Authenticated\n");
983 iAmmount = atoi(ammount);
984 if( iAmmount <= 0 ) {
985 sendf(Client->Socket, "407 Invalid Argument, ammount must be > zero\n");
989 // Handle effective users
990 if( Client->EffectiveUID != -1 ) {
991 thisUid = Client->EffectiveUID;
994 thisUid = Client->UID;
998 switch( DispenseDonate(Client->UID, thisUid, iAmmount, reason) )
1001 sendf(Client->Socket, "200 Give OK\n");
1004 sendf(Client->Socket, "402 Poor You\n");
1007 sendf(Client->Socket, "500 Unknown error\n");
1012 void Server_Cmd_ADD(tClient *Client, char *Args)
1014 char *user, *ammount, *reason;
1018 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
1019 sendf(Client->Socket, "407 ADD takes 3 arguments\n");
1023 if( !Client->bIsAuthed ) {
1024 sendf(Client->Socket, "401 Not Authenticated\n");
1028 // Check user permissions
1029 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
1030 sendf(Client->Socket, "403 Not in coke\n");
1035 if( strcmp( Client->Username, "root" ) == 0 ) {
1036 // Allow adding for new users
1037 if( strcmp(reason, "treasurer: new user") != 0 ) {
1038 sendf(Client->Socket, "403 Root may not add\n");
1045 if( strstr(reason, "refund") != NULL || strstr(reason, "misdispense") != NULL )
1047 sendf(Client->Socket, "499 Don't use `dispense acct` for refunds, use `dispense refund` (and `dispense -G` to get item IDs)\n");
1053 uid = Bank_GetAcctByName(user, 0);
1055 sendf(Client->Socket, "404 Invalid user\n");
1059 // You can't alter an internal account
1060 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) )
1062 if( Bank_GetFlags(uid) & USER_FLAG_INTERNAL ) {
1063 sendf(Client->Socket, "404 Invalid user\n");
1066 // TODO: Maybe disallow changes to disabled?
1070 iAmmount = atoi(ammount);
1071 if( iAmmount == 0 && ammount[0] != '0' ) {
1072 sendf(Client->Socket, "407 Invalid Argument\n");
1077 switch( DispenseAdd(Client->UID, uid, iAmmount, reason) )
1080 sendf(Client->Socket, "200 Add OK\n");
1083 sendf(Client->Socket, "402 Poor Guy\n");
1086 sendf(Client->Socket, "500 Unknown error\n");
1091 void Server_Cmd_SET(tClient *Client, char *Args)
1093 char *user, *ammount, *reason;
1097 if( Server_int_ParseArgs(1, Args, &user, &ammount, &reason, NULL) ) {
1098 sendf(Client->Socket, "407 SET takes 3 arguments\n");
1102 if( !Client->bIsAuthed ) {
1103 sendf(Client->Socket, "401 Not Authenticated\n");
1107 // Check user permissions
1108 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1109 sendf(Client->Socket, "403 Not an admin\n");
1114 uid = Bank_GetAcctByName(user, 0);
1116 sendf(Client->Socket, "404 Invalid user\n");
1121 iAmmount = atoi(ammount);
1122 if( iAmmount == 0 && ammount[0] != '0' ) {
1123 sendf(Client->Socket, "407 Invalid Argument\n");
1128 switch( DispenseSet(Client->UID, uid, iAmmount, reason) )
1131 sendf(Client->Socket, "200 Add OK\n");
1134 sendf(Client->Socket, "402 Poor Guy\n");
1137 sendf(Client->Socket, "500 Unknown error\n");
1142 void Server_Cmd_ENUMUSERS(tClient *Client, char *Args)
1146 int maxBal = INT_MAX, minBal = INT_MIN;
1147 int flagMask = 0, flagVal = 0;
1148 int sort = BANK_ITFLAG_SORT_NAME;
1149 time_t lastSeenAfter=0, lastSeenBefore=0;
1151 int flags; // Iterator flags
1152 int balValue; // Balance value for iterator
1153 time_t timeValue; // Time value for iterator
1156 if( Args && strlen(Args) )
1158 char *space = Args, *type, *val;
1162 while(*type == ' ') type ++;
1164 space = strchr(space, ' ');
1165 if(space) *space = '\0';
1168 val = strchr(type, ':');
1175 if( strcmp(type, "min_balance") == 0 ) {
1178 // - Maximum Balance
1179 else if( strcmp(type, "max_balance") == 0 ) {
1183 else if( strcmp(type, "flags") == 0 ) {
1184 if( Server_int_ParseFlags(Client, val, &flagMask, &flagVal) )
1187 // - Last seen before timestamp
1188 else if( strcmp(type, "last_seen_before") == 0 ) {
1189 lastSeenAfter = atoll(val);
1191 // - Last seen after timestamp
1192 else if( strcmp(type, "last_seen_after") == 0 ) {
1193 lastSeenAfter = atoll(val);
1196 else if( strcmp(type, "sort") == 0 ) {
1197 char *dash = strchr(val, '-');
1202 if( strcmp(val, "name") == 0 ) {
1203 sort = BANK_ITFLAG_SORT_NAME;
1205 else if( strcmp(val, "balance") == 0 ) {
1206 sort = BANK_ITFLAG_SORT_BAL;
1208 else if( strcmp(val, "lastseen") == 0 ) {
1209 sort = BANK_ITFLAG_SORT_LASTSEEN;
1212 sendf(Client->Socket, "407 Unknown sort field ('%s')\n", val);
1215 // Handle sort direction
1217 if( strcmp(dash, "desc") == 0 ) {
1218 sort |= BANK_ITFLAG_REVSORT;
1221 sendf(Client->Socket, "407 Unknown sort direction '%s'\n", dash);
1228 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s:%s'\n", type, val);
1235 sendf(Client->Socket, "407 Unknown argument to ENUM_USERS '%s'\n", type);
1241 *space = ' '; // Repair (to be nice)
1243 while(*space == ' ') space ++;
1249 if( maxBal != INT_MAX ) {
1250 flags = sort|BANK_ITFLAG_MAXBALANCE;
1253 else if( minBal != INT_MIN ) {
1254 flags = sort|BANK_ITFLAG_MINBALANCE;
1261 if( lastSeenBefore ) {
1262 timeValue = lastSeenBefore;
1263 flags |= BANK_ITFLAG_SEENBEFORE;
1265 else if( lastSeenAfter ) {
1266 timeValue = lastSeenAfter;
1267 flags |= BANK_ITFLAG_SEENAFTER;
1272 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1274 // Get return number
1275 while( (i = Bank_IteratorNext(it)) != -1 )
1277 int bal = Bank_GetBalance(i);
1279 if( bal == INT_MIN ) continue;
1281 if( bal < minBal ) continue;
1282 if( bal > maxBal ) continue;
1287 Bank_DelIterator(it);
1290 sendf(Client->Socket, "201 Users %i\n", numRet);
1294 it = Bank_Iterator(flagMask, flagVal, flags, balValue, timeValue);
1296 while( (i = Bank_IteratorNext(it)) != -1 )
1298 int bal = Bank_GetBalance(i);
1300 if( bal == INT_MIN ) continue;
1302 if( bal < minBal ) continue;
1303 if( bal > maxBal ) continue;
1305 _SendUserInfo(Client, i);
1308 Bank_DelIterator(it);
1310 sendf(Client->Socket, "200 List End\n");
1313 void Server_Cmd_USERINFO(tClient *Client, char *Args)
1319 if( Server_int_ParseArgs(0, Args, &user, NULL) ) {
1320 sendf(Client->Socket, "407 USER_INFO takes 1 argument\n");
1324 if( giDebugLevel ) Debug(Client, "User Info '%s'", user);
1327 uid = Bank_GetAcctByName(user, 0);
1329 if( giDebugLevel >= 2 ) Debug(Client, "uid = %i", uid);
1331 sendf(Client->Socket, "404 Invalid user\n");
1335 _SendUserInfo(Client, uid);
1338 void _SendUserInfo(tClient *Client, int UserID)
1340 char *type, *disabled="", *door="";
1341 int flags = Bank_GetFlags(UserID);
1343 if( flags & USER_FLAG_INTERNAL ) {
1346 else if( flags & USER_FLAG_COKE ) {
1347 if( flags & USER_FLAG_ADMIN )
1348 type = "coke,admin";
1352 else if( flags & USER_FLAG_ADMIN ) {
1359 if( flags & USER_FLAG_DISABLED )
1360 disabled = ",disabled";
1361 if( flags & USER_FLAG_DOORGROUP )
1364 // TODO: User flags/type
1366 Client->Socket, "202 User %s %i %s%s%s\n",
1367 Bank_GetAcctName(UserID), Bank_GetBalance(UserID),
1368 type, disabled, door
1372 void Server_Cmd_USERADD(tClient *Client, char *Args)
1377 if( Server_int_ParseArgs(0, Args, &username, NULL) ) {
1378 sendf(Client->Socket, "407 USER_ADD takes 1 argument\n");
1382 // Check authentication
1383 if( !Client->bIsAuthed ) {
1384 sendf(Client->Socket, "401 Not Authenticated\n");
1388 // Check permissions
1389 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1390 sendf(Client->Socket, "403 Not a coke admin\n");
1394 // Try to create user
1395 if( Bank_CreateAcct(username) == -1 ) {
1396 sendf(Client->Socket, "404 User exists\n");
1401 char *thisName = Bank_GetAcctName(Client->UID);
1402 Log_Info("Account '%s' created by '%s'", username, thisName);
1406 sendf(Client->Socket, "200 User Added\n");
1409 void Server_Cmd_USERFLAGS(tClient *Client, char *Args)
1411 char *username, *flags, *reason=NULL;
1412 int mask=0, value=0;
1416 if( Server_int_ParseArgs(1, Args, &username, &flags, &reason, NULL) ) {
1418 sendf(Client->Socket, "407 USER_FLAGS takes at least 2 arguments\n");
1424 // Check authentication
1425 if( !Client->bIsAuthed ) {
1426 sendf(Client->Socket, "401 Not Authenticated\n");
1430 // Check permissions
1431 if( !(Bank_GetFlags(Client->UID) & USER_FLAG_ADMIN) ) {
1432 sendf(Client->Socket, "403 Not a coke admin\n");
1437 uid = Bank_GetAcctByName(username, 0);
1439 sendf(Client->Socket, "404 User '%s' not found\n", username);
1444 if( Server_int_ParseFlags(Client, flags, &mask, &value) )
1448 Debug(Client, "Set %i(%s) flags to %x (masked %x)\n",
1449 uid, username, mask, value);
1452 Bank_SetFlags(uid, mask, value);
1455 Log_Info("Updated '%s' with flag set '%s' by '%s' - Reason: %s",
1456 username, flags, Client->Username, reason);
1459 sendf(Client->Socket, "200 User Updated\n");
1462 void Server_Cmd_UPDATEITEM(tClient *Client, char *Args)
1464 char *itemname, *price_str, *description;
1468 if( Server_int_ParseArgs(1, Args, &itemname, &price_str, &description, NULL) ) {
1469 sendf(Client->Socket, "407 UPDATE_ITEM takes 3 arguments\n");
1473 if( !Client->bIsAuthed ) {
1474 sendf(Client->Socket, "401 Not Authenticated\n");
1478 // Check user permissions
1479 if( !(Bank_GetFlags(Client->UID) & (USER_FLAG_COKE|USER_FLAG_ADMIN)) ) {
1480 sendf(Client->Socket, "403 Not in coke\n");
1484 item = _GetItemFromString(itemname);
1486 // TODO: Create item?
1487 sendf(Client->Socket, "406 Bad Item ID\n");
1491 price = atoi(price_str);
1492 if( price <= 0 && price_str[0] != '0' ) {
1493 sendf(Client->Socket, "407 Invalid price set\n");
1496 switch( DispenseUpdateItem( Client->UID, item, description, price ) )
1500 sendf(Client->Socket, "200 Item updated\n");
1507 // --- INTERNAL HELPERS ---
1508 void Debug(tClient *Client, const char *Format, ...)
1511 //printf("%010i [%i] ", (int)time(NULL), Client->ID);
1512 printf("[%i] ", Client->ID);
1513 va_start(args, Format);
1514 vprintf(Format, args);
1519 int sendf(int Socket, const char *Format, ...)
1524 va_start(args, Format);
1525 len = vsnprintf(NULL, 0, Format, args);
1530 va_start(args, Format);
1531 vsnprintf(buf, len+1, Format, args);
1534 #if DEBUG_TRACE_CLIENT
1535 printf("sendf: %s", buf);
1538 return send(Socket, buf, len, 0);
1542 // Takes a series of char *'s in
1544 * \brief Parse space-separated entries into
1546 int Server_int_ParseArgs(int bUseLongLast, char *ArgStr, ...)
1551 va_start(args, ArgStr);
1556 while( (dest = va_arg(args, char **)) )
1562 savedChar = *ArgStr;
1564 while( (dest = va_arg(args, char **)) )
1566 // Trim leading spaces
1567 while( *ArgStr == ' ' || *ArgStr == '\t' )
1570 // ... oops, not enough arguments
1571 if( *ArgStr == '\0' )
1573 // NULL unset arguments
1576 } while( (dest = va_arg(args, char **)) );
1581 if( *ArgStr == '"' )
1586 while( *ArgStr && *ArgStr != '"' )
1593 // Read until a space
1594 while( *ArgStr && *ArgStr != ' ' && *ArgStr != '\t' )
1597 savedChar = *ArgStr; // savedChar is used to un-mangle the last string
1603 // Oops, extra arguments, and greedy not set
1604 if( (savedChar == ' ' || savedChar == '\t') && !bUseLongLast ) {
1611 *ArgStr = savedChar;
1614 return 0; // Success!
1617 int Server_int_ParseFlags(tClient *Client, const char *Str, int *Mask, int *Value)
1624 {"disabled", USER_FLAG_DISABLED, USER_FLAG_DISABLED}
1625 ,{"door", USER_FLAG_DOORGROUP, USER_FLAG_DOORGROUP}
1626 ,{"coke", USER_FLAG_COKE, USER_FLAG_COKE}
1627 ,{"admin", USER_FLAG_ADMIN, USER_FLAG_ADMIN}
1628 ,{"internal", USER_FLAG_INTERNAL, USER_FLAG_INTERNAL}
1630 const int ciNumFlags = sizeof(cFLAGS)/sizeof(cFLAGS[0]);
1642 while( *Str == ' ' ) Str ++; // Eat whitespace
1643 space = strchr(Str, ','); // Find the end of the flag
1649 // Check for inversion/removal
1650 if( *Str == '!' || *Str == '-' ) {
1654 else if( *Str == '+' ) {
1658 // Check flag values
1659 for( i = 0; i < ciNumFlags; i ++ )
1661 if( strncmp(Str, cFLAGS[i].Name, len) == 0 ) {
1662 *Mask |= cFLAGS[i].Mask;
1663 *Value &= ~cFLAGS[i].Mask;
1665 *Value |= cFLAGS[i].Value;
1671 if( i == ciNumFlags ) {
1673 strncpy(val, Str, len+1);
1674 sendf(Client->Socket, "407 Unknown flag value '%s'\n", val);