#include <stdio.h>
#include <string.h>
#include <ctype.h> // isspace
-#include <stdarg.h>
-#include <regex.h>
-#include <ncurses.h>
-#include <limits.h>
-
#include <unistd.h> // close
-#include <netdb.h> // gethostbyname
-#include <pwd.h> // getpwuids
-#include <sys/socket.h>
-#include <netinet/in.h>
-#include <arpa/inet.h>
-//#include <openssl/sha.h> // SHA1
+#include <limits.h> // INT_MIN/INT_MAX
+#include "common.h"
#define USE_NCURSES_INTERFACE 0
#define DEBUG_TRACE_SERVER 0
#define MAX_TXT_ARGS 5 // Maximum number of textual arguments (including command)
#define DISPENSE_MULTIPLE_MAX 20 // Maximum argument to -c
-enum eUI_Modes
-{
- UI_MODE_BASIC, // Non-NCurses
- UI_MODE_STANDARD,
- UI_MODE_DRINKSONLY,
- UI_MODE_ALL,
- NUM_UI_MODES
-};
-
-enum eReturnValues
-{
- RV_SUCCESS,
- RV_BAD_ITEM,
- RV_INVALID_USER,
- RV_PERMISSIONS,
- RV_ARGUMENTS,
- RV_BALANCE,
- RV_SERVER_ERROR, // Generic for 5xx codes
- RV_UNKNOWN_ERROR = -1,
- RV_SOCKET_ERROR = -2,
- RV_UNKNOWN_RESPONSE = -3,
-};
-
// === TYPES ===
-typedef struct sItem {
- char *Type;
- int ID;
- int Status; // 0: Availiable, 1: Sold out, -1: Error
- char *Desc;
- int Price;
-} tItem;
// === PROTOTYPES ===
void ShowUsage(void);
int main(int argc, char *argv[]);
-// --- GUI ---
- int ShowNCursesUI(void);
- int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted);
-void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1, const char *Mid, char Pad2, const char *Right, ...);
// --- Coke Server Communication ---
- int OpenConnection(const char *Host, int Port);
- int Authenticate(int Socket);
- int GetUserBalance(int Socket);
-void PopulateItemList(int Socket);
- int Dispense_ItemInfo(int Socket, const char *Type, int ID);
- int DispenseItem(int Socket, const char *Type, int ID);
- int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason);
- int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason);
- int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason);
- int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride);
- int Dispense_Donate(int Socket, int Ammount, const char *Reason);
- int Dispense_EnumUsers(int Socket);
- int Dispense_ShowUser(int Socket, const char *Username);
-void _PrintUserLine(const char *Line);
- int Dispense_AddUser(int Socket, const char *Username);
- int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString, const char *Reason);
- int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName);
// --- Helpers ---
-char *ReadLine(int Socket);
- int sendf(int Socket, const char *Format, ...);
char *trim(char *string);
int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage);
void CompileRegex(regex_t *regex, const char *pattern, int flags);
char *gsItemPattern; //!< Item pattern
char *gsEffectiveUser; //!< '-u' Dispense as another user
- int giUIMode = UI_MODE_STANDARD;
+enum eUI_Modes giUIMode = UI_MODE_STANDARD;
int gbDryRun = 0; //!< '-n' Read-only
int gbDisallowSelectWithoutBalance = 1; //!< Don't allow items to be hilighted if not affordable
return ret;
}
-// -------------------
-// --- NCurses GUI ---
-// -------------------
-/**
- * \brief Render the NCurses UI
- */
-int ShowNCursesUI(void)
-{
- int ch;
- int i, times;
- int xBase, yBase;
- const int displayMinWidth = 50;
- char *titleString = "Dispense";
- int items_in_view;
- int maxItemIndex;
- int itemBase = 0;
- int currentItem;
- int ret = -2; // -2: Used for marking "no return yet"
-
- char balance_str[5+1+2+1]; // If $9999.99 is too little, something's wrong
- char *username;
- struct passwd *pwd;
-
- int height, width;
-
- void _ItemDown(void)
- {
- currentItem ++;
- // Skip over spacers
- while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
- currentItem ++;
-
- if( currentItem >= maxItemIndex ) {
- currentItem = 0;
- // Skip over spacers
- while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
- currentItem ++;
- }
- }
-
- void _ItemUp(void)
- {
- currentItem --;
- // Skip over spacers
- while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
- currentItem --;
-
- if( currentItem < 0 ) {
- currentItem = maxItemIndex - 1;
- // Skip over spacers
- while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
- currentItem --;
- }
- }
-
- // Get Username
- if( gsEffectiveUser )
- username = gsEffectiveUser;
- else {
- pwd = getpwuid( getuid() );
- username = pwd->pw_name;
- }
- // Get balance
- snprintf(balance_str, sizeof(balance_str), "$%i.%02i", giUserBalance/100, abs(giUserBalance)%100);
-
- // Enter curses mode
- initscr();
- cbreak(); noecho();
-
- // Get max index
- maxItemIndex = ShowItemAt(0, 0, 0, -1, 0);
- // Get item count per screen
- // - 6: randomly chosen (Need at least 3)
- items_in_view = LINES - 6;
- if( items_in_view > maxItemIndex )
- items_in_view = maxItemIndex;
- // Get first index
- currentItem = 0;
- while( ShowItemAt(0, 0, 0, currentItem, 0) == -1 )
- currentItem ++;
-
-
- // Get dimensions
- height = items_in_view + 3;
- width = displayMinWidth;
-
- // Get positions
- xBase = COLS/2 - width/2;
- yBase = LINES/2 - height/2;
-
- for( ;; )
- {
- // Header
- PrintAlign(yBase, xBase, width, "/", '-', titleString, '-', "\\");
-
- // Items
- for( i = 0; i < items_in_view; i ++ )
- {
- int pos = 0;
-
- move( yBase + 1 + i, xBase );
- printw("| ");
-
- pos += 2;
-
- // Check for the '...' row
- // - Oh god, magic numbers!
- if( (i == 0 && itemBase > 0)
- || (i == items_in_view - 1 && itemBase < maxItemIndex - items_in_view) )
- {
- printw(" ..."); pos += 8;
- times = (width - pos) - 1;
- while(times--) addch(' ');
- }
- // Show an item
- else {
- ShowItemAt(
- yBase + 1 + i, xBase + pos, // Position
- (width - pos) - 3, // Width
- itemBase + i, // Index
- !!(currentItem == itemBase + i) // Hilighted
- );
- printw(" ");
- }
-
- // Scrollbar (if needed)
- if( maxItemIndex > items_in_view ) {
- if( i == 0 ) {
- addch('A');
- }
- else if( i == items_in_view - 1 ) {
- addch('V');
- }
- else {
- int percentage = itemBase * 100 / (maxItemIndex-items_in_view);
- if( i-1 == percentage*(items_in_view-3)/100 ) {
- addch('#');
- }
- else {
- addch('|');
- }
- }
- }
- else {
- addch('|');
- }
- }
-
- // Footer
- PrintAlign(yBase+height-2, xBase, width, "\\", '-', "", '-', "/");
-
- // User line
- // - Username, balance, flags
- PrintAlign(yBase+height-1, xBase+1, width-2,
- username, ' ', balance_str, ' ', gsUserFlags);
-
-
- // Get input
- ch = getch();
-
- if( ch == '\x1B' ) {
- ch = getch();
- if( ch == '[' ) {
- ch = getch();
-
- switch(ch)
- {
- case 'B': _ItemDown(); break;
- case 'A': _ItemUp(); break;
- }
- }
- else {
-
- }
- }
- else {
- switch(ch)
- {
- case '\n':
- ret = ShowItemAt(0, 0, 0, currentItem, 0);
- break;
- case 'h': break;
- case 'j': _ItemDown(); break;
- case 'k': _ItemUp(); break;
- case 'l': break;
- case 0x1b: // Escape
- case 'q':
- ret = -1; // -1: Return with no dispense
- break;
- }
-
- // Check if the return value was changed
- if( ret != -2 ) break;
- }
-
- // Scroll only if needed
- if( items_in_view < maxItemIndex )
- {
- // - If the current item is above the second item shown, and we're not at the top
- if( currentItem < itemBase + 2 && itemBase > 0 ) {
- itemBase = currentItem - 2;
- if(itemBase < 0) itemBase = 0;
- }
- // - If the current item is below the second item show, and we're not at the bottom
- if( currentItem > itemBase + items_in_view - 2 && itemBase + items_in_view < maxItemIndex ) {
- itemBase = currentItem - items_in_view + 2;
- if( itemBase > maxItemIndex - items_in_view )
- itemBase = maxItemIndex - items_in_view;
- }
- }
- }
-
-
- // Leave
- endwin();
- return ret;
-}
-
-/**
- * \brief Show item \a Index at (\a Col, \a Row)
- * \return Dispense index of item
- * \note Part of the NCurses UI
- */
-int ShowItemAt(int Row, int Col, int Width, int Index, int bHilighted)
-{
- char *name = NULL;
- int price = 0;
- int status = -1;
-
- switch(giUIMode)
- {
- // Standard UI
- // - This assumes that
- case UI_MODE_STANDARD:
- // Bounds check
- // Index = -1, request limit
- if( Index < 0 || Index >= giNumItems+2 )
- return giNumItems+2;
- // Drink label
- if( Index == 0 )
- {
- price = 0;
- name = "Coke Machine";
- Index = -1; // -1 indicates a label
- break;
- }
- Index --;
- // Drinks 0 - 6
- if( Index <= 6 )
- {
- name = gaItems[Index].Desc;
- price = gaItems[Index].Price;
- status = gaItems[Index].Status;
- break;
- }
- Index -= 7;
- // EPS label
- if( Index == 0 )
- {
- price = 0;
- name = "Electronic Payment System";
- Index = -1; // -1 indicates a label
- break;
- }
- Index --;
- Index += 7;
- name = gaItems[Index].Desc;
- price = gaItems[Index].Price;
- status = gaItems[Index].Status;
- break;
- default:
- return -1;
- }
-
- // Width = 0, don't print
- if( Width > 0 )
- {
- // 4 preceding, 5 price
- int nameWidth = Width - 4 - snprintf(NULL, 0, " %4i", price);
- move( Row, Col );
-
- if( Index >= 0 )
- {
- // Show hilight and status
- switch( status )
- {
- case 0:
- if( bHilighted )
- printw("-> ");
- else
- printw(" ");
- break;
- case 1:
- printw("SLD ");
- break;
-
- default:
- case -1:
- printw("ERR ");
- break;
- }
-
- printw("%-*.*s", nameWidth, nameWidth, name);
-
- printw(" %4i", price);
- }
- else
- {
- printw("-- %-*.*s ", Width-4, Width-4, name);
- }
- }
-
- // If the item isn't availiable for sale, return -1 (so it's skipped)
- if( status || (price > giUserBalance && gbDisallowSelectWithoutBalance) )
- Index = -1;
-
- return Index;
-}
-
-/**
- * \brief Print a three-part string at the specified position (formatted)
- * \note NCurses UI Helper
- *
- * Prints \a Left on the left of the area, \a Right on the righthand side
- * and \a Mid in the middle of the area. These are padded with \a Pad1
- * between \a Left and \a Mid, and \a Pad2 between \a Mid and \a Right.
- *
- * ::printf style format codes are allowed in \a Left, \a Mid and \a Right,
- * and the arguments to these are read in that order.
- */
-void PrintAlign(int Row, int Col, int Width, const char *Left, char Pad1,
- const char *Mid, char Pad2, const char *Right, ...)
-{
- int lLen, mLen, rLen;
- int times;
-
- va_list args;
-
- // Get the length of the strings
- va_start(args, Right);
- lLen = vsnprintf(NULL, 0, Left, args);
- mLen = vsnprintf(NULL, 0, Mid, args);
- rLen = vsnprintf(NULL, 0, Right, args);
- va_end(args);
-
- // Sanity check
- if( lLen + mLen/2 > Width/2 || mLen/2 + rLen > Width/2 ) {
- return ; // TODO: What to do?
- }
-
- move(Row, Col);
-
- // Render strings
- va_start(args, Right);
- // - Left
- {
- char tmp[lLen+1];
- vsnprintf(tmp, lLen+1, Left, args);
- addstr(tmp);
- }
- // - Left padding
- times = (Width - mLen)/2 - lLen;
- while(times--) addch(Pad1);
- // - Middle
- {
- char tmp[mLen+1];
- vsnprintf(tmp, mLen+1, Mid, args);
- addstr(tmp);
- }
- // - Right Padding
- times = (Width - mLen)/2 - rLen;
- if( (Width - mLen) % 2 ) times ++;
- while(times--) addch(Pad2);
- // - Right
- {
- char tmp[rLen+1];
- vsnprintf(tmp, rLen+1, Right, args);
- addstr(tmp);
- }
-}
-
-// ---------------------
-// --- Coke Protocol ---
-// ---------------------
-int OpenConnection(const char *Host, int Port)
-{
- struct hostent *host;
- struct sockaddr_in serverAddr;
- int sock;
-
- host = gethostbyname(Host);
- if( !host ) {
- fprintf(stderr, "Unable to look up '%s'\n", Host);
- return -1;
- }
-
- memset(&serverAddr, 0, sizeof(serverAddr));
-
- serverAddr.sin_family = AF_INET; // IPv4
- // NOTE: I have a suspicion that IPv6 will play sillybuggers with this :)
- serverAddr.sin_addr.s_addr = *((unsigned long *) host->h_addr_list[0]);
- serverAddr.sin_port = htons(Port);
-
- sock = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP);
- if( sock < 0 ) {
- fprintf(stderr, "Failed to create socket\n");
- return -1;
- }
-
-// printf("geteuid() = %i, getuid() = %i\n", geteuid(), getuid());
-
- if( geteuid() == 0 || getuid() == 0 )
- {
- int i;
- struct sockaddr_in localAddr;
- memset(&localAddr, 0, sizeof(localAddr));
- localAddr.sin_family = AF_INET; // IPv4
-
- // Loop through all the top ports until one is avaliable
- for( i = 512; i < 1024; i ++)
- {
- localAddr.sin_port = htons(i); // IPv4
- // Attempt to bind to low port for autoauth
- if( bind(sock, (struct sockaddr*)&localAddr, sizeof(localAddr)) == 0 )
- break;
- }
- if( i == 1024 )
- printf("Warning: AUTOAUTH unavaliable\n");
-// else
-// printf("Bound to 0.0.0.0:%i\n", i);
- }
-
- if( connect(sock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0 ) {
- fprintf(stderr, "Failed to connect to server\n");
- return -1;
- }
-
- // We're not authenticated if the connection has just opened
- gbIsAuthenticated = 0;
-
- return sock;
-}
-
-int Authenticate_AutoAuth(int Socket, const char *Username)
-{
- char *buf;
- int responseCode;
- int ret = -1;
-
- // Attempt automatic authentication
- sendf(Socket, "AUTOAUTH %s\n", Username);
-
- // Check if it worked
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- switch( responseCode )
- {
- case 200: // Autoauth succeeded, return
- ret = 0;
- break;
-
- case 401: // Untrusted
-// fprintf(stderr, "Untrusted host, AUTOAUTH unavaliable\n");
- ret = RV_PERMISSIONS;
- break;
- case 404: // Bad Username
- fprintf(stderr, "Bad Username '%s'\n", Username);
- ret = RV_INVALID_USER;
- break;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- ret = RV_UNKNOWN_ERROR;
- break;;
- }
-
- free(buf);
- return ret;
-}
-
-int Authenticate_AuthIdent(int Socket)
-{
- char *buf;
- int responseCode;
- int ret = -1;
-
- // Attempt automatic authentication
- sendf(Socket, "AUTHIDENT\n");
-
- // Check if it worked
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- switch( responseCode )
- {
- case 200: // Autoauth succeeded, return
- ret = 0;
- break;
-
- case 401: // Untrusted
-// fprintf(stderr, "Untrusted host, AUTHIDENT unavaliable\n");
- ret = RV_PERMISSIONS;
- break;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- ret = RV_UNKNOWN_RESPONSE;
- break;
- }
-
- free(buf);
-
- return ret;
-}
-
-int Authenticate_Password(int Socket, const char *Username)
-{
- #if USE_PASSWORD_AUTH
- char *buf;
- int responseCode;
- char salt[32];
- int i;
- regmatch_t matches[4];
-
- sendf(Socket, "USER %s\n", Username);
- printf("Using username %s\n", Username);
-
- buf = ReadLine(Socket);
-
- // TODO: Get Salt
- // Expected format: 100 SALT <something> ...
- // OR : 100 User Set
- RunRegex(&gSaltRegex, buf, 4, matches, "Malformed server response");
- responseCode = atoi(buf);
- if( responseCode != 100 ) {
- fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
- free(buf);
- return RV_UNKNOWN_ERROR; // ERROR
- }
-
- // Check for salt
- if( memcmp( buf+matches[2].rm_so, "SALT", matches[2].rm_eo - matches[2].rm_so) == 0) {
- // Store it for later
- memcpy( salt, buf + matches[3].rm_so, matches[3].rm_eo - matches[3].rm_so );
- salt[ matches[3].rm_eo - matches[3].rm_so ] = 0;
- }
- free(buf);
-
- // Give three attempts
- for( i = 0; i < 3; i ++ )
- {
- int ofs = strlen(Username)+strlen(salt);
- char tmpBuf[42];
- char tmp[ofs+20];
- char *pass = getpass("Password: ");
- uint8_t h[20];
-
- // Create hash string
- // <username><salt><hash>
- strcpy(tmp, Username);
- strcat(tmp, salt);
- SHA1( (unsigned char*)pass, strlen(pass), h );
- memcpy(tmp+ofs, h, 20);
-
- // Hash all that
- SHA1( (unsigned char*)tmp, ofs+20, h );
- sprintf(tmpBuf, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
- h[ 0], h[ 1], h[ 2], h[ 3], h[ 4], h[ 5], h[ 6], h[ 7], h[ 8], h[ 9],
- h[10], h[11], h[12], h[13], h[14], h[15], h[16], h[17], h[18], h[19]
- );
-
- // Send password
- sendf(Socket, "PASS %s\n", tmpBuf);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- // Auth OK?
- if( responseCode == 200 ) break;
- // Bad username/password
- if( responseCode == 401 ) continue;
-
- fprintf(stderr, "Unknown repsonse code %i from server\n%s\n", responseCode, buf);
- free(buf);
- return -1;
- }
- free(buf);
- if( i == 3 )
- return RV_INVALID_USER; // 2 = Bad Password
-
- return 0;
- #else
- return RV_INVALID_USER;
- #endif
-}
-
-/**
- * \brief Authenticate with the server
- * \return Boolean Failure
- */
-int Authenticate(int Socket)
-{
- struct passwd *pwd;
-
- if( gbIsAuthenticated ) return 0;
-
- // Get user name
- pwd = getpwuid( getuid() );
-
- // Attempt AUTOAUTH
- if( Authenticate_AutoAuth(Socket, pwd->pw_name) == 0 )
- ;
- else if( Authenticate_AuthIdent(Socket) == 0 )
- ;
- else if( Authenticate_Password(Socket, pwd->pw_name) == 0 )
- return RV_INVALID_USER;
-
- // Set effective user
- if( gsEffectiveUser ) {
- char *buf;
- int responseCode;
- sendf(Socket, "SETEUSER %s\n", gsEffectiveUser);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- printf("Running as '%s' by '%s'\n", gsEffectiveUser, pwd->pw_name);
- break;
-
- case 403:
- printf("Only coke members can use `dispense -u`\n");
- free(buf);
- return RV_PERMISSIONS;
-
- case 404:
- printf("Invalid user selected\n");
- free(buf);
- return RV_INVALID_USER;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- free(buf);
- return RV_UNKNOWN_ERROR;
- }
-
- free(buf);
- }
-
- gbIsAuthenticated = 1;
-
- return 0;
-}
-
-int GetUserBalance(int Socket)
-{
- regmatch_t matches[6];
- struct passwd *pwd;
- char *buf;
- int responseCode;
-
- if( !gsUserName )
- {
- if( gsEffectiveUser ) {
- gsUserName = gsEffectiveUser;
- }
- else {
- pwd = getpwuid( getuid() );
- gsUserName = strdup(pwd->pw_name);
- }
- }
-
- sendf(Socket, "USER_INFO %s\n", gsUserName);
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
- switch(responseCode)
- {
- case 202: break; // Ok
-
- case 404:
- printf("Invalid user? (USER_INFO failed)\n");
- free(buf);
- return RV_INVALID_USER;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- free(buf);
- return RV_UNKNOWN_ERROR;
- }
-
- RunRegex(&gUserInfoRegex, buf, 6, matches, "Malformed server response");
-
- giUserBalance = atoi( buf + matches[4].rm_so );
- gsUserFlags = strdup( buf + matches[5].rm_so );
-
- free(buf);
-
- return 0;
-}
-
-/**
- * \brief Read an item info response from the server
- * \param Dest Destination for the read item (strings will be on the heap)
- */
-int ReadItemInfo(int Socket, tItem *Dest)
-{
- char *buf;
- int responseCode;
-
- regmatch_t matches[8];
- char *statusStr;
-
- // Get item info
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 202: break;
-
- case 406:
- printf("Bad item name\n");
- free(buf);
- return RV_BAD_ITEM;
-
- default:
- fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n%s", responseCode, buf);
- free(buf);
- return RV_UNKNOWN_ERROR;
- }
-
- RunRegex(&gItemRegex, buf, 8, matches, "Malformed server response");
-
- buf[ matches[3].rm_eo ] = '\0';
- buf[ matches[5].rm_eo ] = '\0';
- buf[ matches[7].rm_eo ] = '\0';
-
- statusStr = &buf[ matches[5].rm_so ];
-
- Dest->ID = atoi( buf + matches[4].rm_so );
-
- if( strcmp(statusStr, "avail") == 0 )
- Dest->Status = 0;
- else if( strcmp(statusStr, "sold") == 0 )
- Dest->Status = 1;
- else if( strcmp(statusStr, "error") == 0 )
- Dest->Status = -1;
- else {
- fprintf(stderr, "Unknown response from dispense server (status '%s')\n",
- statusStr);
- return RV_UNKNOWN_ERROR;
- }
- Dest->Price = atoi( buf + matches[6].rm_so );
-
- // Hack a little to reduce heap fragmentation
- {
- char tmpType[strlen(buf + matches[3].rm_so) + 1];
- char tmpDesc[strlen(buf + matches[7].rm_so) + 1];
- strcpy(tmpType, buf + matches[3].rm_so);
- strcpy(tmpDesc, buf + matches[7].rm_so);
- free(buf);
- Dest->Type = strdup( tmpType );
- Dest->Desc = strdup( tmpDesc );
- }
-
- return 0;
-}
-
-/**
- * \brief Fill the item information structure
- * \return Boolean Failure
- */
-void PopulateItemList(int Socket)
-{
- char *buf;
- int responseCode;
-
- char *arrayType;
- int count, i;
- regmatch_t matches[4];
-
- // Ask server for stock list
- send(Socket, "ENUM_ITEMS\n", 11, 0);
- buf = ReadLine(Socket);
-
- //printf("Output: %s\n", buf);
-
- responseCode = atoi(buf);
- if( responseCode != 201 ) {
- fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n", responseCode);
- exit(RV_UNKNOWN_ERROR);
- }
-
- // - Get item list -
-
- // Expected format:
- // 201 Items <count>
- // 202 Item <count>
- RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
-
- arrayType = &buf[ matches[2].rm_so ]; buf[ matches[2].rm_eo ] = '\0';
- count = atoi( &buf[ matches[3].rm_so ] );
-
- // Check array type
- if( strcmp(arrayType, "Items") != 0 ) {
- // What the?!
- fprintf(stderr, "Unexpected array type, expected 'Items', got '%s'\n",
- arrayType);
- exit(RV_UNKNOWN_ERROR);
- }
- free(buf);
-
- giNumItems = count;
- gaItems = malloc( giNumItems * sizeof(tItem) );
-
- // Fetch item information
- for( i = 0; i < giNumItems; i ++ )
- {
- ReadItemInfo( Socket, &gaItems[i] );
- }
-
- // Read end of list
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- if( responseCode != 200 ) {
- fprintf(stderr, "Unknown response from dispense server %i\n'%s'",
- responseCode, buf
- );
- exit(-1);
- }
-
- free(buf);
-}
-
-
-/**
- * \brief Get information on an item
- * \return Boolean Failure
- */
-int Dispense_ItemInfo(int Socket, const char *Type, int ID)
-{
- tItem item;
- int ret;
-
- // Query
- sendf(Socket, "ITEM_INFO %s:%i\n", Type, ID);
-
- ret = ReadItemInfo(Socket, &item);
- if(ret) return ret;
-
- printf("%8s:%-2i %2i.%02i %s\n",
- item.Type, item.ID,
- item.Price/100, item.Price%100,
- item.Desc);
-
- free(item.Type);
- free(item.Desc);
-
- return 0;
-}
-
-/**
- * \brief Dispense an item
- * \return Boolean Failure
- */
-int DispenseItem(int Socket, const char *Type, int ID)
-{
- int ret, responseCode;
- char *buf;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- // Dispense!
- sendf(Socket, "DISPENSE %s:%i\n", Type, ID);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- switch( responseCode )
- {
- case 200:
- printf("Dispense OK\n");
- ret = 0;
- break;
- case 401:
- printf("Not authenticated\n");
- ret = RV_PERMISSIONS;
- break;
- case 402:
- printf("Insufficient balance\n");
- ret = RV_BALANCE;
- break;
- case 406:
- printf("Bad item name\n");
- ret = RV_BAD_ITEM;
- break;
- case 500:
- printf("Item failed to dispense, is the slot empty?\n");
- ret = RV_SERVER_ERROR;
- break;
- case 501:
- printf("Dispense not possible (slot empty/permissions)\n");
- ret = RV_SERVER_ERROR;
- break;
- default:
- printf("Unknown response code %i ('%s')\n", responseCode, buf);
- ret = RV_UNKNOWN_ERROR;
- break;
- }
-
- free(buf);
- return ret;
-}
-
-/**
- * \brief Alter a user's balance
- */
-int Dispense_AlterBalance(int Socket, const char *Username, int Ammount, const char *Reason)
-{
- char *buf;
- int responseCode, rv = -1;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- // Sanity
- if( Ammount == 0 ) {
- printf("An amount would be nice\n");
- return RV_ARGUMENTS;
- }
-
- sendf(Socket, "ADD %s %i %s\n", Username, Ammount, Reason);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- rv = 0; // OK
- break;
- case 402:
- fprintf(stderr, "Insufficient balance\n");
- rv = RV_BAD_ITEM;
- break;
- case 403: // Not in coke
- fprintf(stderr, "You are not in coke (sucker)\n");
- rv = RV_PERMISSIONS;
- break;
- case 404: // Unknown user
- fprintf(stderr, "Unknown user '%s'\n", Username);
- rv = RV_INVALID_USER;
- break;
- default:
- fprintf(stderr, "Unknown response code %i\n'%s'\n", responseCode, buf);
- rv = RV_UNKNOWN_RESPONSE;
- break;
- }
- free(buf);
-
- return rv;
-}
-
-/**
- * \brief Set a user's balance
- * \note Only avaliable to dispense admins
- */
-int Dispense_SetBalance(int Socket, const char *Username, int Balance, const char *Reason)
-{
- char *buf;
- int responseCode;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- sendf(Socket, "SET %s %i %s\n", Username, Balance, Reason);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- free(buf);
-
- switch(responseCode)
- {
- case 200: return 0; // OK
- case 403: // Not in coke
- fprintf(stderr, "You are not an admin\n");
- return RV_PERMISSIONS;
- case 404: // Unknown user
- fprintf(stderr, "Unknown user '%s'\n", Username);
- return RV_INVALID_USER;
- default:
- fprintf(stderr, "Unknown response code %i\n", responseCode);
- return RV_UNKNOWN_RESPONSE;
- }
-
- return -1;
-}
-
-/**
- * \brief Give money to another user
- */
-int Dispense_Give(int Socket, const char *Username, int Ammount, const char *Reason)
-{
- char *buf;
- int responseCode;
-
- if( Ammount < 0 ) {
- printf("Sorry, you can only give, you can't take.\n");
- return RV_ARGUMENTS;
- }
-
- // Fast return on zero
- if( Ammount == 0 ) {
- printf("Are you actually going to give any?\n");
- return RV_ARGUMENTS;
- }
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- sendf(Socket, "GIVE %s %i %s\n", Username, Ammount, Reason);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
- free(buf);
- switch(responseCode)
- {
- case 200:
- printf("Give succeeded\n");
- return RV_SUCCESS; // OK
-
- case 402:
- fprintf(stderr, "Insufficient balance\n");
- return RV_BALANCE;
-
- case 404: // Unknown user
- fprintf(stderr, "Unknown user '%s'\n", Username);
- return RV_INVALID_USER;
-
- default:
- fprintf(stderr, "Unknown response code %i\n", responseCode);
- return RV_UNKNOWN_RESPONSE;
- }
-
- return -1;
-}
-
-int Dispense_Refund(int Socket, const char *Username, const char *Item, int PriceOverride)
-{
- char *buf;
- int responseCode, ret = -1;
-
- // Check item id
- if( RunRegex(&gUserItemIdentRegex, Item, 0, NULL, NULL) != 0 )
- {
- fprintf(stderr, "Error: Invalid item ID passed (should be <type>:<num>)\n");
- return RV_ARGUMENTS;
- }
-
- // Check username (quick)
- if( strchr(Username, ' ') || strchr(Username, '\n') )
- {
- fprintf(stderr, "Error: Username is invalid (no spaces or newlines please)\n");
- return RV_ARGUMENTS;
- }
-
- // Send the query
- sendf(Socket, "REFUND %s %s %i\n", Username, Item, PriceOverride);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
- switch(responseCode)
- {
- case 200:
- Dispense_ShowUser(Socket, Username); // Show destination account
- ret = 0;
- break;
- case 403:
- fprintf(stderr, "Refund access is only avaliable to coke members\n");
- ret = RV_PERMISSIONS;
- break;
- case 404:
- fprintf(stderr, "Unknown user '%s' passed\n", Username);
- ret = RV_INVALID_USER;
- break;
- case 406:
- fprintf(stderr, "Invalid item '%s' passed\n", Item);
- ret = RV_BAD_ITEM;
- break;
- default:
- fprintf(stderr, "Unknown response from server %i\n%s\n", responseCode, buf);
- ret = -1;
- break;
- }
- free(buf);
- return ret;
-}
-
-/**
- * \brief Donate money to the club
- */
-int Dispense_Donate(int Socket, int Ammount, const char *Reason)
-{
- char *buf;
- int responseCode;
-
- if( Ammount < 0 ) {
- printf("Sorry, you can only give, you can't take.\n");
- return -1;
- }
-
- // Fast return on zero
- if( Ammount == 0 ) {
- printf("Are you actually going to give any?\n");
- return 1;
- }
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- sendf(Socket, "DONATE %i %s\n", Ammount, Reason);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- free(buf);
-
- switch(responseCode)
- {
- case 200: return 0; // OK
-
- case 402:
- fprintf(stderr, "Insufficient balance\n");
- return 1;
-
- default:
- fprintf(stderr, "Unknown response code %i\n", responseCode);
- return -1;
- }
-
- return -1;
-}
-
-/**
- * \brief Enumerate users
- */
-int Dispense_EnumUsers(int Socket)
-{
- char *buf;
- int responseCode;
- int nUsers;
- regmatch_t matches[4];
-
- if( giMinimumBalance != INT_MIN ) {
- if( giMaximumBalance != INT_MAX ) {
- sendf(Socket, "ENUM_USERS min_balance:%i max_balance:%i\n", giMinimumBalance, giMaximumBalance);
- }
- else {
- sendf(Socket, "ENUM_USERS min_balance:%i\n", giMinimumBalance);
- }
- }
- else {
- if( giMaximumBalance != INT_MAX ) {
- sendf(Socket, "ENUM_USERS max_balance:%i\n", giMaximumBalance);
- }
- else {
- sendf(Socket, "ENUM_USERS\n");
- }
- }
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 201: break; // Ok, length follows
-
- default:
- fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
- free(buf);
- return -1;
- }
-
- // Get count (not actually used)
- RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
- nUsers = atoi( buf + matches[3].rm_so );
- printf("%i users returned\n", nUsers);
-
- // Free string
- free(buf);
-
- // Read returned users
- do {
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- if( responseCode != 202 ) break;
-
- _PrintUserLine(buf);
- free(buf);
- } while(responseCode == 202);
-
- // Check final response
- if( responseCode != 200 ) {
- fprintf(stderr, "Unknown response code %i\n%s\n", responseCode, buf);
- free(buf);
- return -1;
- }
-
- free(buf);
-
- return 0;
-}
-
-int Dispense_ShowUser(int Socket, const char *Username)
-{
- char *buf;
- int responseCode, ret;
-
- sendf(Socket, "USER_INFO %s\n", Username);
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 202:
- _PrintUserLine(buf);
- ret = 0;
- break;
-
- case 404:
- printf("Unknown user '%s'\n", Username);
- ret = 1;
- break;
-
- default:
- fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
- ret = -1;
- break;
- }
-
- free(buf);
-
- return ret;
-}
-
-void _PrintUserLine(const char *Line)
-{
- regmatch_t matches[6];
- int bal;
-
- RunRegex(&gUserInfoRegex, Line, 6, matches, "Malformed server response");
- // 3: Username
- // 4: Balance
- // 5: Flags
- {
- int usernameLen = matches[3].rm_eo - matches[3].rm_so;
- char username[usernameLen + 1];
- int flagsLen = matches[5].rm_eo - matches[5].rm_so;
- char flags[flagsLen + 1];
-
- memcpy(username, Line + matches[3].rm_so, usernameLen);
- username[usernameLen] = '\0';
- memcpy(flags, Line + matches[5].rm_so, flagsLen);
- flags[flagsLen] = '\0';
-
- bal = atoi(Line + matches[4].rm_so);
- printf("%-15s: $%8.02f (%s)\n", username, ((float)bal)/100, flags);
- }
-}
-
-int Dispense_AddUser(int Socket, const char *Username)
-{
- char *buf;
- int responseCode, ret;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- sendf(Socket, "USER_ADD %s\n", Username);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- printf("User '%s' added\n", Username);
- ret = 0;
- break;
-
- case 403:
- printf("Only wheel can add users\n");
- ret = 1;
- break;
-
- case 404:
- printf("User '%s' already exists\n", Username);
- ret = 0;
- break;
-
- default:
- fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
- ret = -1;
- break;
- }
-
- free(buf);
-
- return ret;
-}
-
-int Dispense_SetUserType(int Socket, const char *Username, const char *TypeString, const char *Reason)
-{
- char *buf;
- int responseCode, ret;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- // TODO: Pre-validate the string
-
- sendf(Socket, "USER_FLAGS %s %s %s\n", Username, TypeString, Reason);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- printf("User '%s' updated\n", Username);
- ret = 0;
- break;
-
- case 403:
- printf("Only dispense admins can modify users\n");
- ret = RV_PERMISSIONS;
- break;
-
- case 404:
- printf("User '%s' does not exist\n", Username);
- ret = RV_INVALID_USER;
- break;
-
- case 407:
- printf("Flag string is invalid\n");
- ret = RV_ARGUMENTS;
- break;
-
- default:
- fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
- ret = RV_UNKNOWN_RESPONSE;
- break;
- }
-
- free(buf);
-
- return ret;
-}
-
-int Dispense_SetItem(int Socket, const char *Type, int ID, int NewPrice, const char *NewName)
-{
- char *buf;
- int responseCode, ret;
-
- // Check for a dry run
- if( gbDryRun ) {
- printf("Dry Run - No action\n");
- return 0;
- }
-
- sendf(Socket, "UPDATE_ITEM %s:%i %i %s\n", Type, ID, NewPrice, NewName);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- printf("Item %s:%i updated\n", Type, ID);
- ret = 0;
- break;
-
- case 403:
- printf("Only coke members can modify the slots\n");
- ret = RV_PERMISSIONS;
- break;
-
- case 406:
- printf("Invalid item passed\n");
- ret = RV_BAD_ITEM;
- break;
-
- default:
- fprintf(stderr, "Unknown response code %i '%s'\n", responseCode, buf);
- ret = -1;
- break;
- }
-
- free(buf);
-
- return ret;
-}
-
// ---------------
// --- Helpers ---
// ---------------
-char *ReadLine(int Socket)
-{
- static char buf[BUFSIZ];
- static int bufPos = 0;
- static int bufValid = 0;
- int len;
- char *newline = NULL;
- int retLen = 0;
- char *ret = malloc(10);
-
- #if DEBUG_TRACE_SERVER
- printf("ReadLine: ");
- fflush(stdout);
- #endif
-
- ret[0] = '\0';
-
- while( !newline )
- {
- if( bufValid ) {
- len = bufValid;
- }
- else {
- len = recv(Socket, buf+bufPos, BUFSIZ-1-bufPos, 0);
- if( len <= 0 ) {
- free(ret);
- return strdup("599 Client Connection Error\n");
- }
- }
- buf[bufPos+len] = '\0';
-
- newline = strchr( buf+bufPos, '\n' );
- if( newline ) {
- *newline = '\0';
- }
-
- retLen += strlen(buf+bufPos);
- ret = realloc(ret, retLen + 1);
- strcat( ret, buf+bufPos );
-
- if( newline ) {
- int newLen = newline - (buf+bufPos) + 1;
- bufValid = len - newLen;
- len = newLen;
- }
- if( len + bufPos == BUFSIZ - 1 ) bufPos = 0;
- else bufPos += len;
- }
-
- #if DEBUG_TRACE_SERVER
- printf("%i '%s'\n", retLen, ret);
- #endif
-
- return ret;
-}
-
-int sendf(int Socket, const char *Format, ...)
-{
- va_list args;
- int len;
-
- va_start(args, Format);
- len = vsnprintf(NULL, 0, Format, args);
- va_end(args);
-
- {
- char buf[len+1];
- va_start(args, Format);
- vsnprintf(buf, len+1, Format, args);
- va_end(args);
-
- #if DEBUG_TRACE_SERVER
- printf("sendf: %s", buf);
- #endif
-
- return send(Socket, buf, len, 0);
- }
-}
-
char *trim(char *string)
{
int i;
git.ucc.asn.au / tpg / opendispense2.git / blobdiff
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