3 * UCC (University [of WA] Computer Club) Electronic Accounting System
6 * main.c - Core and Initialisation
8 * This file is licenced under the 3-clause BSD Licence. See the file
9 * COPYING for full details.
14 #include <ctype.h> // isspace
20 #include <unistd.h> // close
21 #include <netdb.h> // gethostbyname
22 #include <pwd.h> // getpwuids
23 #include <sys/socket.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
26 //#include <openssl/sha.h> // SHA1
28 #define USE_NCURSES_INTERFACE 0
29 #define DEBUG_TRACE_SERVER 0
30 #define USE_AUTOAUTH 1
32 #define MAX_TXT_ARGS 5 // Maximum number of textual arguments (including command)
33 #define DISPENSE_MULTIPLE_MAX 20 // Maximum argument to -c
37 UI_MODE_BASIC, // Non-NCurses
52 RV_SERVER_ERROR, // Generic for 5xx codes
53 RV_UNKNOWN_ERROR = -1,
55 RV_UNKNOWN_RESPONSE = -3,
59 typedef struct sItem {
62 int Status; // 0: Availiable, 1: Sold out, -1: Error
69 int main(int argc, char *argv[]);
71 int ShowNCursesUI(void);
72 int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted);
73 void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1, const char *Mid, char Pad2, const char *Right, ...);
74 // --- Coke Server Communication ---
75 int OpenConnection(const char *Host, int Port);
76 int Authenticate(int Socket);
77 int GetUserBalance(int Socket);
78 void PopulateItemList(int Socket);
79 int Dispense_ItemInfo(int Socket, const char *Type, int ID);
80 int DispenseItem(int Socket, const char *Type, int ID);
81 int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason);
82 int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason);
83 int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason);
84 int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride);
85 int Dispense_Donate(int Socket, int Ammount, const char *Reason);
86 int Dispense_EnumUsers(int Socket);
87 int Dispense_ShowUser(int Socket, const char *Username);
88 void _PrintUserLine(const char *Line);
89 int Dispense_AddUser(int Socket, const char *Username);
90 int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString, const char *Reason);
91 int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName);
93 char *ReadLine(int Socket);
94 int sendf(int Socket, const char *Format, ...);
95 char *trim(char *string);
96 int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage);
97 void CompileRegex(regex_t *regex, const char *pattern, int flags);
100 char *gsDispenseServer = "merlo.ucc.gu.uwa.edu.au";
101 int giDispensePort = 11020;
105 regex_t gArrayRegex, gItemRegex, gSaltRegex, gUserInfoRegex, gUserItemIdentRegex;
106 int gbIsAuthenticated = 0;
108 char *gsItemPattern; //!< Item pattern
109 char *gsEffectiveUser; //!< '-u' Dispense as another user
111 int giUIMode = UI_MODE_STANDARD;
112 int gbDryRun = 0; //!< '-n' Read-only
113 int gbDisallowSelectWithoutBalance = 1; //!< Don't allow items to be hilighted if not affordable
115 int giMinimumBalance = INT_MIN; //!< '-m' Minumum balance for `dispense acct`
116 int giMaximumBalance = INT_MAX; //!< '-M' Maximum balance for `dispense acct`
118 char *gsUserName; //!< User that dispense will happen as
119 char *gsUserFlags; //!< User's flag set
120 int giUserBalance = -1; //!< User balance (set by Authenticate)
121 int giDispenseCount = 1; //!< Number of dispenses to do
123 char *gsTextArgs[MAX_TXT_ARGS];
129 printf( "Usage:\n" );
130 if( giTextArgc == 0 )
134 " Show interactive list\n"
135 " dispense <name>|<index>|<itemid>\n"
136 " Dispense named item (<name> matches if it is a unique prefix)\n"
138 " Show the finger output\n"
140 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "give") == 0 )
142 " dispense give <user> <amount> \"<reason>\"\n"
143 " Give money to another user\n"
146 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "donate") == 0 )
148 " dispense donate <amount> \"<reason>\"\n"
149 " Donate to the club\n"
151 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "iteminfo") == 0 )
153 " dispense iteminfo <itemid>\n"
154 " Get the name and price for an item\n"
156 // if( giTextArgc == 0 || strcmp(gsTextArgs[0], "enumitems") == 0 )
158 // " dispense enumitems\n"
159 // " List avaliable items\n"
161 if( giTextArgc == 0 )
162 printf(" == Coke members == \n");
163 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "acct") == 0 )
165 " dispense acct [<user>]\n"
166 " Show user balances\n"
167 " dispense acct <user> [+-]<amount> \"<reason>\"\n"
168 " Alter a account value\n"
169 " dispense acct <user> =<amount> \"<reason>\"\n"
170 " Set an account balance\n"
172 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "refund") == 0 )
174 " dispense refund <user> <itemid> [<price>]\n"
175 " Refund an item to a user (with optional price override)\n"
176 " Item IDs can be seen in the cokelog (in the brackets after the item name)\n"
177 " e.g. coke:6 for a coke, snack:33 for slot 33 of the snack machine\n"
179 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "slot") == 0 )
181 " dispense slot <itemid> <price> <name>\n"
182 " Rename/Re-price a slot\n"
184 if( giTextArgc == 0 )
185 printf(" == Dispense administrators ==\n");
186 if( giTextArgc == 0 || strcmp(gsTextArgs[0], "user") == 0 )
188 " dispense user add <user>\n"
189 " Create new account\n"
190 " dispense user type <user> <flags> <reason>\n"
191 " Alter a user's flags\n"
192 " <flags> is a comma-separated list of user, coke, admin, internal or disabled\n"
193 " Flags are removed by preceding the name with '-' or '!'\n"
195 if( giTextArgc == 0 )
199 " Dispense multiple times\n"
201 " Set a different user (Coke members only)\n"
205 " Use simple textual interface (instead of ncurses)\n"
207 " Dry run - Do not actually do dispenses\n"
208 " -m <min balance>\n"
209 " -M <max balance>\n"
210 " Set the Maximum/Minimum balances shown in `dispense acct`\n"
213 " Item ID of the form <type>:<num> where <type> is a non-empty string of alpha-numeric characters, and <num> is a non-negative integer\n"
219 int main(int argc, char *argv[])
227 // -- Create regular expressions
228 // > Code Type Count ...
229 CompileRegex(&gArrayRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([0-9]+)", REG_EXTENDED); //
230 // > Code Type Ident Status Price Desc
231 CompileRegex(&gItemRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([A-Za-z]+):([0-9]+)\\s+(avail|sold|error)\\s+([0-9]+)\\s+(.+)$", REG_EXTENDED);
232 // > Code 'SALT' salt
233 CompileRegex(&gSaltRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+(.+)$", REG_EXTENDED);
234 // > Code 'User' Username Balance Flags
235 CompileRegex(&gUserInfoRegex, "^([0-9]{3})\\s+([A-Za-z]+)\\s+([^ ]+)\\s+(-?[0-9]+)\\s+(.+)$", REG_EXTENDED);
237 CompileRegex(&gUserItemIdentRegex, "^([A-Za-z]+):([0-9]+)$", REG_EXTENDED);
240 for( i = 1; i < argc; i ++ )
254 if( i + 1 >= argc ) {
255 fprintf(stderr, "%s: -c takes an argument\n", argv[0]);
259 giDispenseCount = atoi(argv[++i]);
260 if( giDispenseCount < 1 || giDispenseCount > DISPENSE_MULTIPLE_MAX ) {
261 fprintf(stderr, "Sorry, only 1-20 can be passed to -c (safety)\n");
267 case 'm': // Minimum balance
268 if( i + 1 >= argc ) {
269 fprintf(stderr, "%s: -m takes an argument\n", argv[0]);
273 giMinimumBalance = atoi(argv[++i]);
275 case 'M': // Maximum balance
276 if( i + 1 >= argc ) {
277 fprintf(stderr, "%s: -M takes an argument\n", argv[0]);
281 giMaximumBalance = atoi(argv[++i]);
284 case 'u': // Override User
285 if( i + 1 >= argc ) {
286 fprintf(stderr, "%s: -u takes an argument\n", argv[0]);
290 gsEffectiveUser = argv[++i];
293 case 'H': // Override remote host
294 if( i + 1 >= argc ) {
295 fprintf(stderr, "%s: -H takes an argument\n", argv[0]);
299 gsDispenseServer = argv[++i];
301 case 'P': // Override remote port
302 if( i + 1 >= argc ) {
303 fprintf(stderr, "%s: -P takes an argument\n", argv[0]);
307 giDispensePort = atoi(argv[++i]);
310 // Set slot name/price
312 if( giTextArgc != 0 ) {
313 fprintf(stderr, "%s: -s must appear before other arguments\n", argv[0]);
317 gsTextArgs[0] = "slot"; // HACK!!
321 case 'G': // Don't use GUI
322 giUIMode = UI_MODE_BASIC;
324 case 'D': // Drinks only
325 giUIMode = UI_MODE_DRINKSONLY;
327 case 'n': // Dry Run / read-only
331 if( strcmp(argv[i], "--help") == 0 ) {
335 else if( strcmp(argv[i], "--dry-run") == 0 ) {
338 else if( strcmp(argv[i], "--drinks-only") == 0 ) {
339 giUIMode = UI_MODE_DRINKSONLY;
341 else if( strcmp(argv[i], "--can-select-all") == 0 ) {
342 gbDisallowSelectWithoutBalance = 0;
345 fprintf(stderr, "%s: Unknown switch '%s'\n", argv[0], argv[i]);
351 // The first argument is not allowed to begin with 'i'
352 // (catches most bad flags)
353 if( giTextArgc == 0 ) {
354 fprintf(stderr, "%s: Unknown switch '%s'\n", argv[0], argv[i]);
358 if( giTextArgc == MAX_TXT_ARGS )
360 fprintf(stderr, "ERROR: Too many arguments\n");
363 gsTextArgs[giTextArgc++] = argv[i];
370 if( giTextArgc == MAX_TXT_ARGS )
372 fprintf(stderr, "ERROR: Too many arguments\n");
376 gsTextArgs[giTextArgc++] = argv[i];
383 if( strcmp(gsTextArgs[0], "finger") == 0 )
386 sock = OpenConnection(gsDispenseServer, giDispensePort);
387 if( sock < 0 ) return RV_SOCKET_ERROR;
390 PopulateItemList(sock);
392 // Only get coke slot statuses
393 for( i = 0; i <= 6; i ++ )
396 switch(gaItems[i].Status)
398 case 0: status = "Avail"; break;
399 case 1: status = "Sold "; break;
404 printf("%i - %s %3i %s\n", gaItems[i].ID, status, gaItems[i].Price, gaItems[i].Desc);
414 if( strcmp(gsTextArgs[0], "acct") == 0 )
417 sock = OpenConnection(gsDispenseServer, giDispensePort);
418 if( sock < 0 ) return RV_SOCKET_ERROR;
420 if( giTextArgc == 1 ) {
421 ret = Dispense_EnumUsers(sock);
426 // gsTextArgs[1]: Username
429 if( giTextArgc != 2 )
431 if( giTextArgc != 4 ) {
432 fprintf(stderr, "`dispense acct` requires a reason\n");
437 // Authentication required
438 ret = Authenticate(sock);
441 // gsTextArgs[1]: Username
442 // gsTextArgs[2]: Ammount
443 // gsTextArgs[3]: Reason
445 if( gsTextArgs[2][0] == '=' ) {
447 if( gsTextArgs[2][1] != '0' && atoi(gsTextArgs[2]+1) == 0 ) {
448 fprintf(stderr, "Error: Invalid balance to be set\n");
452 ret = Dispense_SetBalance(sock, gsTextArgs[1], atoi(gsTextArgs[2]+1), gsTextArgs[3]);
456 ret = Dispense_AlterBalance(sock, gsTextArgs[1], atoi(gsTextArgs[2]), gsTextArgs[3]);
465 // Show user information
466 ret = Dispense_ShowUser(sock, gsTextArgs[1]);
473 // - "Here, have some money."
474 else if( strcmp(gsTextArgs[0], "give") == 0 )
476 if( giTextArgc != 4 ) {
477 fprintf(stderr, "`dispense give` takes three arguments\n");
482 // gsTextArgs[1]: Destination
483 // gsTextArgs[2]: Ammount
484 // gsTextArgs[3]: Reason
487 sock = OpenConnection(gsDispenseServer, giDispensePort);
488 if( sock < 0 ) return RV_SOCKET_ERROR;
491 ret = Authenticate(sock);
494 ret = Dispense_Give(sock, gsTextArgs[1], atoi(gsTextArgs[2]), gsTextArgs[3]);
502 // - User administration (Admin Only)
503 if( strcmp(gsTextArgs[0], "user") == 0 )
505 // Check argument count
506 if( giTextArgc == 1 ) {
507 fprintf(stderr, "Error: `dispense user` requires arguments\n");
513 sock = OpenConnection(gsDispenseServer, giDispensePort);
514 if( sock < 0 ) return RV_SOCKET_ERROR;
516 // Attempt authentication
517 ret = Authenticate(sock);
521 if( strcmp(gsTextArgs[1], "add") == 0 )
523 if( giTextArgc != 3 ) {
524 fprintf(stderr, "Error: `dispense user add` requires an argument\n");
529 ret = Dispense_AddUser(sock, gsTextArgs[2]);
532 else if( strcmp(gsTextArgs[1], "type") == 0 || strcmp(gsTextArgs[1], "flags") == 0 )
534 if( giTextArgc < 4 || giTextArgc > 5 ) {
535 fprintf(stderr, "Error: `dispense user type` requires two arguments\n");
540 if( giTextArgc == 4 )
541 ret = Dispense_SetUserType(sock, gsTextArgs[2], gsTextArgs[3], "");
543 ret = Dispense_SetUserType(sock, gsTextArgs[2], gsTextArgs[3], gsTextArgs[4]);
547 fprintf(stderr, "Error: Unknown sub-command for `dispense user`\n");
555 else if( strcmp(gsTextArgs[0], "donate") == 0 )
557 // Check argument count
558 if( giTextArgc != 3 ) {
559 fprintf(stderr, "Error: `dispense donate` requires two arguments\n");
565 sock = OpenConnection(gsDispenseServer, giDispensePort);
566 if( sock < 0 ) return RV_SOCKET_ERROR;
568 // Attempt authentication
569 ret = Authenticate(sock);
573 ret = Dispense_Donate(sock, atoi(gsTextArgs[1]), gsTextArgs[2]);
580 else if( strcmp(gsTextArgs[0], "refund") == 0 )
583 // Check argument count
584 if( giTextArgc != 3 && giTextArgc != 4 ) {
585 fprintf(stderr, "Error: `dispense refund` takes 2 or 3 arguments\n");
591 sock = OpenConnection(gsDispenseServer, giDispensePort);
592 if(sock < 0) return RV_SOCKET_ERROR;
594 // Attempt authentication
595 ret = Authenticate(sock);
598 if( giTextArgc == 4 ) {
599 price = atoi(gsTextArgs[3]);
601 fprintf(stderr, "Error: Override price is invalid (should be > 0)\n");
606 // Username, Item, cost
607 ret = Dispense_Refund(sock, gsTextArgs[1], gsTextArgs[2], price);
613 // Query an item price
614 else if( strcmp(gsTextArgs[0], "iteminfo") == 0 )
616 regmatch_t matches[3];
619 // Check argument count
620 if( giTextArgc != 2 ) {
621 fprintf(stderr, "Error: `dispense iteminfo` requires an argument\n");
626 if( RunRegex(&gUserItemIdentRegex, gsTextArgs[1], 3, matches, NULL) != 0 ) {
627 fprintf(stderr, "Error: Invalid item ID passed (<type>:<id> expected)\n");
630 type = gsTextArgs[1] + matches[1].rm_so;
631 gsTextArgs[1][ matches[1].rm_eo ] = '\0';
632 id = atoi( gsTextArgs[1] + matches[2].rm_so );
634 sock = OpenConnection(gsDispenseServer, giDispensePort);
635 if( sock < 0 ) return RV_SOCKET_ERROR;
637 ret = Dispense_ItemInfo(sock, type, id);
642 else if( strcmp(gsTextArgs[0], "slot") == 0 )
644 regmatch_t matches[3];
645 char *item_type, *newname;
649 if( giTextArgc != 4 ) {
650 fprintf(stderr, "Error: `dispense slot` takes three arguments\n");
656 if( RunRegex(&gUserItemIdentRegex, gsTextArgs[1], 3, matches, NULL) != 0 ) {
657 fprintf(stderr, "Error: Invalid item ID passed (<type>:<id> expected)\n");
660 item_type = gsTextArgs[1] + matches[1].rm_so;
661 gsTextArgs[1][ matches[1].rm_eo ] = '\0';
662 item_id = atoi( gsTextArgs[1] + matches[2].rm_so );
665 price = atoi( gsTextArgs[2] );
666 if( price <= 0 && gsTextArgs[2][0] != '0' ) {
667 fprintf(stderr, "Error: Invalid price passed (must be >= 0)\n");
672 newname = gsTextArgs[3];
676 for( pos = newname; *pos; pos ++ )
678 if( !isalnum(*pos) && *pos != ' ' ) {
679 fprintf(stderr, "Error: You should only have letters, numbers and spaces in an item name\n");
685 // Connect & Authenticate
686 sock = OpenConnection(gsDispenseServer, giDispensePort);
687 if( sock < 0 ) return RV_SOCKET_ERROR;
688 ret = Authenticate(sock);
691 ret = Dispense_SetItem(sock, item_type, item_id, price, newname);
696 // Item name / pattern
699 gsItemPattern = gsTextArgs[0];
703 sock = OpenConnection(gsDispenseServer, giDispensePort);
704 if( sock < 0 ) return RV_SOCKET_ERROR;
706 // Get the user's balance
707 ret = GetUserBalance(sock);
711 PopulateItemList(sock);
713 // Disconnect from server
716 if( gsItemPattern && gsItemPattern[0] )
718 regmatch_t matches[3];
720 if( strcmp(gsItemPattern, "door") == 0 )
722 // Connect, Authenticate, dispense and close
723 sock = OpenConnection(gsDispenseServer, giDispensePort);
724 if( sock < 0 ) return RV_SOCKET_ERROR;
725 ret = Authenticate(sock);
727 ret = DispenseItem(sock, "door", 0);
731 // Item id (<type>:<num>)
732 else if( RunRegex(&gUserItemIdentRegex, gsItemPattern, 3, matches, NULL) == 0 )
737 // Get and finish ident
738 ident = gsItemPattern + matches[1].rm_so;
739 gsItemPattern[matches[1].rm_eo] = '\0';
741 id = atoi( gsItemPattern + matches[2].rm_so );
743 // Connect, Authenticate, dispense and close
744 sock = OpenConnection(gsDispenseServer, giDispensePort);
745 if( sock < 0 ) return RV_SOCKET_ERROR;
747 Dispense_ItemInfo(sock, ident, id);
749 ret = Authenticate(sock);
751 ret = DispenseItem(sock, ident, id);
755 // Item number (6 = coke)
756 else if( strcmp(gsItemPattern, "0") == 0 || atoi(gsItemPattern) > 0 )
758 i = atoi(gsItemPattern);
765 for( i = 0; i < giNumItems; i ++ )
767 // Prefix match (with case-insensitive match)
768 for( j = 0; gsItemPattern[j]; j ++ )
770 if( gaItems[i].Desc[j] == gsItemPattern[j] )
772 if( tolower(gaItems[i].Desc[j]) == tolower(gsItemPattern[j]) )
776 // Check if the prefix matched
777 if( gsItemPattern[j] != '\0' )
781 if( gaItems[i].Desc[j] == '\0' ) {
786 // Only one match allowed
791 // TODO: Allow ambiguous matches?
792 // or just print a wanrning
793 printf("Warning - Ambiguous pattern, stopping\n");
798 // Was a match found?
801 fprintf(stderr, "No item matches the passed string\n");
808 else if( giUIMode != UI_MODE_BASIC )
814 // Very basic dispense interface
815 for( i = 0; i < giNumItems; i ++ ) {
817 if( i && strcmp(gaItems[i].Type, gaItems[i-1].Type) != 0 )
820 printf("%2i %s:%i\t%3i %s\n", i, gaItems[i].Type, gaItems[i].ID,
821 gaItems[i].Price, gaItems[i].Desc);
830 fgets(buffer, BUFSIZ, stdin);
834 if( buf[0] == 'q' ) break;
838 if( i != 0 || buf[0] == '0' )
840 if( i < 0 || i >= giNumItems ) {
841 printf("Bad item %i (should be between 0 and %i)\n", i, giNumItems);
850 // Check for a valid item ID
854 // Connect, Authenticate, dispense and close
855 sock = OpenConnection(gsDispenseServer, giDispensePort);
856 if( sock < 0 ) return RV_SOCKET_ERROR;
858 ret = Dispense_ItemInfo(sock, gaItems[i].Type, gaItems[i].ID);
861 ret = Authenticate(sock);
864 for( j = 0; j < giDispenseCount; j ++ ) {
865 ret = DispenseItem(sock, gaItems[i].Type, gaItems[i].ID);
869 printf("%i items dispensed\n", j);
871 Dispense_ShowUser(sock, gsUserName);
879 // -------------------
880 // --- NCurses GUI ---
881 // -------------------
883 * \brief Render the NCurses UI
885 int ShowNCursesUI(void)
890 const int displayMinWidth = 50;
891 char *titleString = "Dispense";
896 int ret = -2; // -2: Used for marking "no return yet"
898 char balance_str[5+1+2+1]; // If $9999.99 is too little, something's wrong
905 if( gsEffectiveUser )
906 username = gsEffectiveUser;
908 pwd = getpwuid( getuid() );
909 username = pwd->pw_name;
912 snprintf(balance_str, sizeof(balance_str), "$%i.%02i", giUserBalance/100, abs(giUserBalance)%100);
919 maxItemIndex = ShowItemAt(0, 0, 0, -1, 0);
920 // Get item count per screen
921 // - 6: randomly chosen (Need at least 3)
922 items_in_view = LINES - 6;
923 if( items_in_view > maxItemIndex )
924 items_in_view = maxItemIndex;
927 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
932 height = items_in_view + 3;
933 width = displayMinWidth;
936 xBase = COLS/2 - width/2;
937 yBase = LINES/2 - height/2;
942 PrintAlign(yBase, xBase, width, "/", '-', titleString, '-', "\\");
945 for( i = 0; i < items_in_view; i ++ )
949 move( yBase + 1 + i, xBase );
954 // Check for the '...' row
955 // - Oh god, magic numbers!
956 if( (i == 0 && itemBase > 0)
957 || (i == items_in_view - 1 && itemBase < maxItemIndex - items_in_view) )
959 printw(" ..."); pos += 8;
960 times = (width - pos) - 1;
961 while(times--) addch(' ');
966 yBase + 1 + i, xBase + pos, // Position
967 (width - pos) - 3, // Width
968 itemBase + i, // Index
969 !!(currentItem == itemBase + i) // Hilighted
974 // Scrollbar (if needed)
975 if( maxItemIndex > items_in_view ) {
979 else if( i == items_in_view - 1 ) {
983 int percentage = itemBase * 100 / (maxItemIndex-items_in_view);
984 if( i-1 == percentage*(items_in_view-3)/100 ) {
998 PrintAlign(yBase+height-2, xBase, width, "\\", '-', "", '-', "/");
1001 // - Username, balance, flags
1002 PrintAlign(yBase+height-1, xBase+1, width-2,
1003 username, ' ', balance_str, ' ', gsUserFlags);
1009 if( ch == '\x1B' ) {
1018 // Skip over spacers
1019 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
1022 if( currentItem >= maxItemIndex ) {
1024 // Skip over spacers
1025 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
1031 // Skip over spacers
1032 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
1035 if( currentItem < 0 ) {
1036 currentItem = maxItemIndex - 1;
1037 // Skip over spacers
1038 while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
1048 // Scroll only if needed
1049 if( items_in_view < maxItemIndex )
1051 // - If the current item is above the second item shown, and we're not at the top
1052 if( currentItem < itemBase + 2 && itemBase > 0 ) {
1053 itemBase = currentItem - 2;
1054 if(itemBase < 0) itemBase = 0;
1056 // - If the current item is below the second item show, and we're not at the bottom
1057 if( currentItem > itemBase + items_in_view - 2 && itemBase + items_in_view < maxItemIndex ) {
1058 itemBase = currentItem - items_in_view + 2;
1059 if( itemBase > maxItemIndex - items_in_view )
1060 itemBase = maxItemIndex - items_in_view;
1068 ret = ShowItemAt(0, 0, 0, currentItem, 0);
1070 case 0x1b: // Escape
1072 ret = -1; // -1: Return with no dispense
1076 // Check if the return value was changed
1077 if( ret != -2 ) break;
1089 * \brief Show item \a Index at (\a Col, \a Row)
1090 * \return Dispense index of item
1091 * \note Part of the NCurses UI
1093 int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted)
1102 // - This assumes that
1103 case UI_MODE_STANDARD:
1105 // Index = -1, request limit
1106 if( Index < 0 || Index >= giNumItems+2 )
1107 return giNumItems+2;
1112 name = "Coke Machine";
1113 Index = -1; // -1 indicates a label
1120 name = gaItems[Index].Desc;
1121 price = gaItems[Index].Price;
1122 status = gaItems[Index].Status;
1130 name = "Electronic Payment System";
1131 Index = -1; // -1 indicates a label
1136 name = gaItems[Index].Desc;
1137 price = gaItems[Index].Price;
1138 status = gaItems[Index].Status;
1144 // Width = 0, don't print
1147 // 4 preceding, 5 price
1148 int nameWidth = Width - 4 - snprintf(NULL, 0, " %4i", price);
1153 // Show hilight and status
1172 printw("%-*.*s", nameWidth, nameWidth, name);
1174 printw(" %4i", price);
1178 printw("-- %-*.*s ", Width-4, Width-4, name);
1182 // If the item isn't availiable for sale, return -1 (so it's skipped)
1183 if( status || (price > giUserBalance && gbDisallowSelectWithoutBalance) )
1190 * \brief Print a three-part string at the specified position (formatted)
1191 * \note NCurses UI Helper
1193 * Prints \a Left on the left of the area, \a Right on the righthand side
1194 * and \a Mid in the middle of the area. These are padded with \a Pad1
1195 * between \a Left and \a Mid, and \a Pad2 between \a Mid and \a Right.
1197 * ::printf style format codes are allowed in \a Left, \a Mid and \a Right,
1198 * and the arguments to these are read in that order.
1200 void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1,
1201 const char *Mid, char Pad2, const char *Right, ...)
1203 int lLen, mLen, rLen;
1208 // Get the length of the strings
1209 va_start(args, Right);
1210 lLen = vsnprintf(NULL, 0, Left, args);
1211 mLen = vsnprintf(NULL, 0, Mid, args);
1212 rLen = vsnprintf(NULL, 0, Right, args);
1216 if( lLen + mLen/2 > Width/2 || mLen/2 + rLen > Width/2 ) {
1217 return ; // TODO: What to do?
1223 va_start(args, Right);
1227 vsnprintf(tmp, lLen+1, Left, args);
1231 times = (Width - mLen)/2 - lLen;
1232 while(times--) addch(Pad1);
1236 vsnprintf(tmp, mLen+1, Mid, args);
1240 times = (Width - mLen)/2 - rLen;
1241 if( (Width - mLen) % 2 ) times ++;
1242 while(times--) addch(Pad2);
1246 vsnprintf(tmp, rLen+1, Right, args);
1251 // ---------------------
1252 // --- Coke Protocol ---
1253 // ---------------------
1254 int OpenConnection(const char *Host, int Port)
1256 struct hostent *host;
1257 struct sockaddr_in serverAddr;
1260 host = gethostbyname(Host);
1262 fprintf(stderr, "Unable to look up '%s'\n", Host);
1266 memset(&serverAddr, 0, sizeof(serverAddr));
1268 serverAddr.sin_family = AF_INET; // IPv4
1269 // NOTE: I have a suspicion that IPv6 will play sillybuggers with this :)
1270 serverAddr.sin_addr.s_addr = *((unsigned long *) host->h_addr_list[0]);
1271 serverAddr.sin_port = htons(Port);
1273 sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
1275 fprintf(stderr, "Failed to create socket\n");
1279 // printf("geteuid() = %i, getuid() = %i\n", geteuid(), getuid());
1281 if( geteuid() == 0 || getuid() == 0 )
1284 struct sockaddr_in localAddr;
1285 memset(&localAddr, 0, sizeof(localAddr));
1286 localAddr.sin_family = AF_INET; // IPv4
1288 // Loop through all the top ports until one is avaliable
1289 for( i = 512; i < 1024; i ++)
1291 localAddr.sin_port = htons(i); // IPv4
1292 // Attempt to bind to low port for autoauth
1293 if( bind(sock, (struct sockaddr*)&localAddr, sizeof(localAddr)) == 0 )
1297 printf("Warning: AUTOAUTH unavaliable\n");
1299 // printf("Bound to 0.0.0.0:%i\n", i);
1302 if( connect(sock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0 ) {
1303 fprintf(stderr, "Failed to connect to server\n");
1307 // We're not authenticated if the connection has just opened
1308 gbIsAuthenticated = 0;
1314 * \brief Authenticate with the server
1315 * \return Boolean Failure
1317 int Authenticate(int Socket)
1322 #if ATTEMPT_PASSWORD_AUTH
1325 regmatch_t matches[4];
1328 if( gbIsAuthenticated ) return 0;
1331 pwd = getpwuid( getuid() );
1333 // Attempt automatic authentication
1334 sendf(Socket, "AUTOAUTH %s\n", pwd->pw_name);
1336 // Check if it worked
1337 buf = ReadLine(Socket);
1339 responseCode = atoi(buf);
1340 switch( responseCode )
1342 case 200: // Autoauth succeeded, return
1346 case 401: // Untrusted, attempt password authentication
1349 #if ATTEMPT_PASSWORD_AUTH
1350 sendf(Socket, "USER %s\n", pwd->pw_name);
1351 printf("Using username %s\n", pwd->pw_name);
1353 buf = ReadLine(Socket);
1356 // Expected format: 100 SALT <something> ...
1357 // OR : 100 User Set
1358 RunRegex(&gSaltRegex, buf, 4, matches, "Malformed server response");
1359 responseCode = atoi(buf);
1360 if( responseCode != 100 ) {
1361 fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
1363 return RV_UNKNOWN_ERROR; // ERROR
1367 if( memcmp( buf+matches[2].rm_so, "SALT", matches[2].rm_eo - matches[2].rm_so) == 0) {
1368 // Store it for later
1369 memcpy( salt, buf + matches[3].rm_so, matches[3].rm_eo - matches[3].rm_so );
1370 salt[ matches[3].rm_eo - matches[3].rm_so ] = 0;
1374 // Give three attempts
1375 for( i = 0; i < 3; i ++ )
1377 int ofs = strlen(pwd->pw_name)+strlen(salt);
1380 char *pass = getpass("Password: ");
1383 // Create hash string
1384 // <username><salt><hash>
1385 strcpy(tmp, pwd->pw_name);
1387 SHA1( (unsigned char*)pass, strlen(pass), h );
1388 memcpy(tmp+ofs, h, 20);
1391 SHA1( (unsigned char*)tmp, ofs+20, h );
1392 sprintf(tmpBuf, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
1393 h[ 0], h[ 1], h[ 2], h[ 3], h[ 4], h[ 5], h[ 6], h[ 7], h[ 8], h[ 9],
1394 h[10], h[11], h[12], h[13], h[14], h[15], h[16], h[17], h[18], h[19]
1398 sendf(Socket, "PASS %s\n", tmpBuf);
1399 buf = ReadLine(Socket);
1401 responseCode = atoi(buf);
1403 if( responseCode == 200 ) break;
1404 // Bad username/password
1405 if( responseCode == 401 ) continue;
1407 fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
1409 return RV_UNKNOWN_ERROR;
1413 return RV_INVALID_USER; // 2 = Bad Password
1416 fprintf(stderr, "Untrusted host, AUTOAUTH unavaliable\n");
1417 return RV_INVALID_USER;
1421 case 404: // Bad Username
1422 fprintf(stderr, "Bad Username '%s'\n", pwd->pw_name);
1424 return RV_INVALID_USER;
1427 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1428 printf("%s\n", buf);
1430 return RV_UNKNOWN_ERROR;
1433 // Set effective user
1434 if( gsEffectiveUser ) {
1435 sendf(Socket, "SETEUSER %s\n", gsEffectiveUser);
1437 buf = ReadLine(Socket);
1438 responseCode = atoi(buf);
1440 switch(responseCode)
1443 printf("Running as '%s' by '%s'\n", gsEffectiveUser, pwd->pw_name);
1447 printf("Only coke members can use `dispense -u`\n");
1449 return RV_PERMISSIONS;
1452 printf("Invalid user selected\n");
1454 return RV_INVALID_USER;
1457 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1458 printf("%s\n", buf);
1460 return RV_UNKNOWN_ERROR;
1466 gbIsAuthenticated = 1;
1471 int GetUserBalance(int Socket)
1473 regmatch_t matches[6];
1480 if( gsEffectiveUser ) {
1481 gsUserName = gsEffectiveUser;
1484 pwd = getpwuid( getuid() );
1485 gsUserName = strdup(pwd->pw_name);
1489 sendf(Socket, "USER_INFO %s\n", gsUserName);
1490 buf = ReadLine(Socket);
1491 responseCode = atoi(buf);
1492 switch(responseCode)
1494 case 202: break; // Ok
1497 printf("Invalid user? (USER_INFO failed)\n");
1499 return RV_INVALID_USER;
1502 fprintf(stderr, "Unkown response code %i from server\n", responseCode);
1503 printf("%s\n", buf);
1505 return RV_UNKNOWN_ERROR;
1508 RunRegex(&gUserInfoRegex, buf, 6, matches, "Malformed server response");
1510 giUserBalance = atoi( buf + matches[4].rm_so );
1511 gsUserFlags = strdup( buf + matches[5].rm_so );
1519 * \brief Read an item info response from the server
1520 * \param Dest Destination for the read item (strings will be on the heap)
1522 int ReadItemInfo(int Socket, tItem *Dest)
1527 regmatch_t matches[8];
1531 buf = ReadLine(Socket);
1532 responseCode = atoi(buf);
1534 switch(responseCode)
1539 printf("Bad item name\n");
1544 fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n%s", responseCode, buf);
1546 return RV_UNKNOWN_ERROR;
1549 RunRegex(&gItemRegex, buf, 8, matches, "Malformed server response");
1551 buf[ matches[3].rm_eo ] = '\0';
1552 buf[ matches[5].rm_eo ] = '\0';
1553 buf[ matches[7].rm_eo ] = '\0';
1555 statusStr = &buf[ matches[5].rm_so ];
1557 Dest->ID = atoi( buf + matches[4].rm_so );
1559 if( strcmp(statusStr, "avail") == 0 )
1561 else if( strcmp(statusStr, "sold") == 0 )
1563 else if( strcmp(statusStr, "error") == 0 )
1566 fprintf(stderr, "Unknown response from dispense server (status '%s')\n",
1568 return RV_UNKNOWN_ERROR;
1570 Dest->Price = atoi( buf + matches[6].rm_so );
1572 // Hack a little to reduce heap fragmentation
1574 char tmpType[strlen(buf + matches[3].rm_so) + 1];
1575 char tmpDesc[strlen(buf + matches[7].rm_so) + 1];
1576 strcpy(tmpType, buf + matches[3].rm_so);
1577 strcpy(tmpDesc, buf + matches[7].rm_so);
1579 Dest->Type = strdup( tmpType );
1580 Dest->Desc = strdup( tmpDesc );
1587 * \brief Fill the item information structure
1588 * \return Boolean Failure
1590 void PopulateItemList(int Socket)
1597 regmatch_t matches[4];
1599 // Ask server for stock list
1600 send(Socket, "ENUM_ITEMS\n", 11, 0);
1601 buf = ReadLine(Socket);
1603 //printf("Output: %s\n", buf);
1605 responseCode = atoi(buf);
1606 if( responseCode != 201 ) {
1607 fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n", responseCode);
1608 exit(RV_UNKNOWN_ERROR);
1611 // - Get item list -
1614 // 201 Items <count>
1616 RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
1618 arrayType = &buf[ matches[2].rm_so ]; buf[ matches[2].rm_eo ] = '\0';
1619 count = atoi( &buf[ matches[3].rm_so ] );
1622 if( strcmp(arrayType, "Items") != 0 ) {
1624 fprintf(stderr, "Unexpected array type, expected 'Items', got '%s'\n",
1626 exit(RV_UNKNOWN_ERROR);
1631 gaItems = malloc( giNumItems * sizeof(tItem) );
1633 // Fetch item information
1634 for( i = 0; i < giNumItems; i ++ )
1636 ReadItemInfo( Socket, &gaItems[i] );
1640 buf = ReadLine(Socket);
1641 responseCode = atoi(buf);
1643 if( responseCode != 200 ) {
1644 fprintf(stderr, "Unknown response from dispense server %i\n'%s'",
1655 * \brief Get information on an item
1656 * \return Boolean Failure
1658 int Dispense_ItemInfo(int Socket, const char *Type, int ID)
1664 sendf(Socket, "ITEM_INFO %s:%i\n", Type, ID);
1666 ret = ReadItemInfo(Socket, &item);
1669 printf("%8s:%-2i %2i.%02i %s\n",
1671 item.Price/100, item.Price%100,
1681 * \brief Dispense an item
1682 * \return Boolean Failure
1684 int DispenseItem(int Socket, const char *Type, int ID)
1686 int ret, responseCode;
1689 // Check for a dry run
1691 printf("Dry Run - No action\n");
1696 sendf(Socket, "DISPENSE %s:%i\n", Type, ID);
1697 buf = ReadLine(Socket);
1699 responseCode = atoi(buf);
1700 switch( responseCode )
1703 printf("Dispense OK\n");
1707 printf("Not authenticated\n");
1708 ret = RV_PERMISSIONS;
1711 printf("Insufficient balance\n");
1715 printf("Bad item name\n");
1719 printf("Item failed to dispense, is the slot empty?\n");
1720 ret = RV_SERVER_ERROR;
1723 printf("Dispense not possible (slot empty/permissions)\n");
1724 ret = RV_SERVER_ERROR;
1727 printf("Unknown response code %i ('%s')\n", responseCode, buf);
1728 ret = RV_UNKNOWN_ERROR;
1737 * \brief Alter a user's balance
1739 int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason)
1742 int responseCode, rv = -1;
1744 // Check for a dry run
1746 printf("Dry Run - No action\n");
1751 if( Ammount == 0 ) {
1752 printf("An amount would be nice\n");
1753 return RV_ARGUMENTS;
1756 sendf(Socket, "ADD %s %i %s\n", Username, Ammount, Reason);
1757 buf = ReadLine(Socket);
1759 responseCode = atoi(buf);
1761 switch(responseCode)
1767 fprintf(stderr, "Insufficient balance\n");
1770 case 403: // Not in coke
1771 fprintf(stderr, "You are not in coke (sucker)\n");
1772 rv = RV_PERMISSIONS;
1774 case 404: // Unknown user
1775 fprintf(stderr, "Unknown user '%s'\n", Username);
1776 rv = RV_INVALID_USER;
1779 fprintf(stderr, "Unknown response code %i\n'%s'\n", responseCode, buf);
1780 rv = RV_UNKNOWN_RESPONSE;
1789 * \brief Set a user's balance
1790 * \note Only avaliable to dispense admins
1792 int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason)
1797 // Check for a dry run
1799 printf("Dry Run - No action\n");
1803 sendf(Socket, "SET %s %i %s\n", Username, Balance, Reason);
1804 buf = ReadLine(Socket);
1806 responseCode = atoi(buf);
1809 switch(responseCode)
1811 case 200: return 0; // OK
1812 case 403: // Not in coke
1813 fprintf(stderr, "You are not an admin\n");
1814 return RV_PERMISSIONS;
1815 case 404: // Unknown user
1816 fprintf(stderr, "Unknown user '%s'\n", Username);
1817 return RV_INVALID_USER;
1819 fprintf(stderr, "Unknown response code %i\n", responseCode);
1820 return RV_UNKNOWN_RESPONSE;
1827 * \brief Give money to another user
1829 int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason)
1835 printf("Sorry, you can only give, you can't take.\n");
1836 return RV_ARGUMENTS;
1839 // Fast return on zero
1840 if( Ammount == 0 ) {
1841 printf("Are you actually going to give any?\n");
1842 return RV_ARGUMENTS;
1845 // Check for a dry run
1847 printf("Dry Run - No action\n");
1851 sendf(Socket, "GIVE %s %i %s\n", Username, Ammount, Reason);
1853 buf = ReadLine(Socket);
1854 responseCode = atoi(buf);
1856 switch(responseCode)
1859 printf("Give succeeded\n");
1860 return RV_SUCCESS; // OK
1863 fprintf(stderr, "Insufficient balance\n");
1866 case 404: // Unknown user
1867 fprintf(stderr, "Unknown user '%s'\n", Username);
1868 return RV_INVALID_USER;
1871 fprintf(stderr, "Unknown response code %i\n", responseCode);
1872 return RV_UNKNOWN_RESPONSE;
1878 int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride)
1881 int responseCode, ret = -1;
1884 if( RunRegex(&gUserItemIdentRegex, Item, 0, NULL, NULL) != 0 )
1886 fprintf(stderr, "Error: Invalid item ID passed (should be <type>:<num>)\n");
1887 return RV_ARGUMENTS;
1890 // Check username (quick)
1891 if( strchr(Username, ' ') || strchr(Username, '\n') )
1893 fprintf(stderr, "Error: Username is invalid (no spaces or newlines please)\n");
1894 return RV_ARGUMENTS;
1898 sendf(Socket, "REFUND %s %s %i\n", Username, Item, PriceOverride);
1900 buf = ReadLine(Socket);
1901 responseCode = atoi(buf);
1902 switch(responseCode)
1905 Dispense_ShowUser(Socket, Username); // Show destination account
1909 fprintf(stderr, "Refund access is only avaliable to coke members\n");
1910 ret = RV_PERMISSIONS;
1913 fprintf(stderr, "Unknown user '%s' passed\n", Username);
1914 ret = RV_INVALID_USER;
1917 fprintf(stderr, "Invalid item '%s' passed\n", Item);
1921 fprintf(stderr, "Unknown response from server %i\n%s\n", responseCode, buf);
1930 * \brief Donate money to the club
1932 int Dispense_Donate(int Socket, int Ammount, const char *Reason)
1938 printf("Sorry, you can only give, you can't take.\n");
1942 // Fast return on zero
1943 if( Ammount == 0 ) {
1944 printf("Are you actually going to give any?\n");
1948 // Check for a dry run
1950 printf("Dry Run - No action\n");
1954 sendf(Socket, "DONATE %i %s\n", Ammount, Reason);
1955 buf = ReadLine(Socket);
1957 responseCode = atoi(buf);
1960 switch(responseCode)
1962 case 200: return 0; // OK
1965 fprintf(stderr, "Insufficient balance\n");
1969 fprintf(stderr, "Unknown response code %i\n", responseCode);
1977 * \brief Enumerate users
1979 int Dispense_EnumUsers(int Socket)
1984 regmatch_t matches[4];
1986 if( giMinimumBalance != INT_MIN ) {
1987 if( giMaximumBalance != INT_MAX ) {
1988 sendf(Socket, "ENUM_USERS min_balance:%i max_balance:%i\n", giMinimumBalance, giMaximumBalance);
1991 sendf(Socket, "ENUM_USERS min_balance:%i\n", giMinimumBalance);
1995 if( giMaximumBalance != INT_MAX ) {
1996 sendf(Socket, "ENUM_USERS max_balance:%i\n", giMaximumBalance);
1999 sendf(Socket, "ENUM_USERS\n");
2002 buf = ReadLine(Socket);
2003 responseCode = atoi(buf);
2005 switch(responseCode)
2007 case 201: break; // Ok, length follows
2010 fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
2015 // Get count (not actually used)
2016 RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
2017 nUsers = atoi( buf + matches[3].rm_so );
2018 printf("%i users returned\n", nUsers);
2023 // Read returned users
2025 buf = ReadLine(Socket);
2026 responseCode = atoi(buf);
2028 if( responseCode != 202 ) break;
2030 _PrintUserLine(buf);
2032 } while(responseCode == 202);
2034 // Check final response
2035 if( responseCode != 200 ) {
2036 fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
2046 int Dispense_ShowUser(int Socket, const char *Username)
2049 int responseCode, ret;
2051 sendf(Socket, "USER_INFO %s\n", Username);
2052 buf = ReadLine(Socket);
2054 responseCode = atoi(buf);
2056 switch(responseCode)
2059 _PrintUserLine(buf);
2064 printf("Unknown user '%s'\n", Username);
2069 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2079 void _PrintUserLine(const char *Line)
2081 regmatch_t matches[6];
2084 RunRegex(&gUserInfoRegex, Line, 6, matches, "Malformed server response");
2089 int usernameLen = matches[3].rm_eo - matches[3].rm_so;
2090 char username[usernameLen + 1];
2091 int flagsLen = matches[5].rm_eo - matches[5].rm_so;
2092 char flags[flagsLen + 1];
2094 memcpy(username, Line + matches[3].rm_so, usernameLen);
2095 username[usernameLen] = '\0';
2096 memcpy(flags, Line + matches[5].rm_so, flagsLen);
2097 flags[flagsLen] = '\0';
2099 bal = atoi(Line + matches[4].rm_so);
2100 printf("%-15s: $%8.02f (%s)\n", username, ((float)bal)/100, flags);
2104 int Dispense_AddUser(int Socket, const char *Username)
2107 int responseCode, ret;
2109 // Check for a dry run
2111 printf("Dry Run - No action\n");
2115 sendf(Socket, "USER_ADD %s\n", Username);
2117 buf = ReadLine(Socket);
2118 responseCode = atoi(buf);
2120 switch(responseCode)
2123 printf("User '%s' added\n", Username);
2128 printf("Only wheel can add users\n");
2133 printf("User '%s' already exists\n", Username);
2138 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2148 int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString, const char *Reason)
2151 int responseCode, ret;
2153 // Check for a dry run
2155 printf("Dry Run - No action\n");
2159 // TODO: Pre-validate the string
2161 sendf(Socket, "USER_FLAGS %s %s %s\n", Username, TypeString, Reason);
2163 buf = ReadLine(Socket);
2164 responseCode = atoi(buf);
2166 switch(responseCode)
2169 printf("User '%s' updated\n", Username);
2174 printf("Only dispense admins can modify users\n");
2175 ret = RV_PERMISSIONS;
2179 printf("User '%s' does not exist\n", Username);
2180 ret = RV_INVALID_USER;
2184 printf("Flag string is invalid\n");
2189 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2190 ret = RV_UNKNOWN_RESPONSE;
2199 int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName)
2202 int responseCode, ret;
2204 // Check for a dry run
2206 printf("Dry Run - No action\n");
2210 sendf(Socket, "UPDATE_ITEM %s:%i %i %s\n", Type, ID, NewPrice, NewName);
2212 buf = ReadLine(Socket);
2213 responseCode = atoi(buf);
2215 switch(responseCode)
2218 printf("Item %s:%i updated\n", Type, ID);
2223 printf("Only coke members can modify the slots\n");
2224 ret = RV_PERMISSIONS;
2228 printf("Invalid item passed\n");
2233 fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
2246 char *ReadLine(int Socket)
2248 static char buf[BUFSIZ];
2249 static int bufPos = 0;
2250 static int bufValid = 0;
2252 char *newline = NULL;
2254 char *ret = malloc(10);
2256 #if DEBUG_TRACE_SERVER
2257 printf("ReadLine: ");
2269 len = recv(Socket, buf+bufPos, BUFSIZ-1-bufPos, 0);
2272 return strdup("599 Client Connection Error\n");
2275 buf[bufPos+len] = '\0';
2277 newline = strchr( buf+bufPos, '\n' );
2282 retLen += strlen(buf+bufPos);
2283 ret = realloc(ret, retLen + 1);
2284 strcat( ret, buf+bufPos );
2287 int newLen = newline - (buf+bufPos) + 1;
2288 bufValid = len - newLen;
2291 if( len + bufPos == BUFSIZ - 1 ) bufPos = 0;
2295 #if DEBUG_TRACE_SERVER
2296 printf("%i '%s'\n", retLen, ret);
2302 int sendf(int Socket, const char *Format, ...)
2307 va_start(args, Format);
2308 len = vsnprintf(NULL, 0, Format, args);
2313 va_start(args, Format);
2314 vsnprintf(buf, len+1, Format, args);
2317 #if DEBUG_TRACE_SERVER
2318 printf("sendf: %s", buf);
2321 return send(Socket, buf, len, 0);
2325 char *trim(char *string)
2329 while( isspace(*string) )
2332 for( i = strlen(string); i--; )
2334 if( isspace(string[i]) )
2343 int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage)
2347 ret = regexec(regex, string, nMatches, matches, 0);
2348 if( ret && errorMessage ) {
2349 size_t len = regerror(ret, regex, NULL, 0);
2351 regerror(ret, regex, errorStr, len);
2352 printf("string = '%s'\n", string);
2353 fprintf(stderr, "%s\n%s", errorMessage, errorStr);
2360 void CompileRegex(regex_t *regex, const char *pattern, int flags)
2362 int ret = regcomp(regex, pattern, flags);
2364 size_t len = regerror(ret, regex, NULL, 0);
2366 regerror(ret, regex, errorStr, len);
2367 fprintf(stderr, "Regex compilation failed - %s\n", errorStr);