- // Get positions
- xBase = COLS/2 - width/2;
- yBase = LINES/2 - height/2;
-
- for( ;; )
- {
- // Header
- PrintAlign(yBase, xBase, width, "/", '-', titleString, '-', "\\");
-
- // Items
- for( i = 0; i < itemCount; i ++ )
- {
- move( yBase + 1 + i, xBase );
-
- if( currentItem == itemBase + i ) {
- printw("| -> ");
- }
- else {
- printw("| ");
- }
-
- // Check for ... row
- // - Oh god, magic numbers!
- if( i == 0 && itemBase > 0 ) {
- printw(" ...");
- times = width-1 - 8 - 3;
- while(times--) addch(' ');
- }
- else if( i == itemCount - 1 && itemBase < giNumItems - itemCount ) {
- printw(" ...");
- times = width-1 - 8 - 3;
- while(times--) addch(' ');
- }
- // Show an item
- else {
- ShowItemAt( yBase + 1 + i, xBase + 5, width - 7, itemBase + i);
- addch(' ');
- }
-
- // Scrollbar (if needed)
- if( giNumItems > itemCount ) {
- if( i == 0 ) {
- addch('A');
- }
- else if( i == itemCount - 1 ) {
- addch('V');
- }
- else {
- int percentage = itemBase * 100 / (giNumItems-itemCount);
- if( i-1 == percentage*(itemCount-3)/100 ) {
- addch('#');
- }
- else {
- addch('|');
- }
- }
- }
- else {
- addch('|');
- }
- }
-
- // Footer
- PrintAlign(yBase+height-2, xBase, width, "\\", '-', "", '-', "/");
-
- // Get input
- ch = getch();
-
- if( ch == '\x1B' ) {
- ch = getch();
- if( ch == '[' ) {
- ch = getch();
-
- switch(ch)
- {
- case 'B':
- //if( itemBase < giNumItems - (itemCount) )
- // itemBase ++;
- if( currentItem < giNumItems - 1 )
- currentItem ++;
- if( itemBase + itemCount - 1 <= currentItem && itemBase + itemCount < giNumItems )
- itemBase ++;
- break;
- case 'A':
- //if( itemBase > 0 )
- // itemBase --;
- if( currentItem > 0 )
- currentItem --;
- if( itemBase + 1 > currentItem && itemBase > 0 )
- itemBase --;
- break;
- }
- }
- else {
-
- }
- }
- else {
- switch(ch)
- {
- case '\n':
- ret = currentItem;
- break;
- case 'q':
- ret = -1; // -1: Return with no dispense
- break;
- }
-
- // Check if the return value was changed
- if( ret != -2 ) break;
- }
-
- }
-
-
- // Leave
- endwin();
- return ret;
-}
-
-/**
- * \brief Show item \a Index at (\a Col, \a Row)
- * \note Part of the NCurses UI
- */
-void ShowItemAt(int Row, int Col, int Width, int Index)
-{
- int _x, _y, times;
- char *name;
- int price;
-
- move( Row, Col );
-
- if( Index < 0 || Index >= giNumItems ) {
- name = "OOR";
- price = 0;
- }
- else {
- name = gaItems[Index].Desc;
- price = gaItems[Index].Price;
- }
-
- printw("%02i %s", Index, name);
-
- getyx(stdscr, _y, _x);
- // Assumes max 4 digit prices
- times = Width - 4 - (_x - Col); // TODO: Better handling for large prices
- while(times--) addch(' ');
- printw("%4i", price);
-}
-
-/**
- * \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/2 - mLen/2 - lLen;
- while(times--) addch(Pad1);
- // - Middle
- {
- char tmp[mLen+1];
- vsnprintf(tmp, mLen+1, Mid, args);
- addstr(tmp);
- }
- // - Right Padding
- times = Width/2 - mLen/2 - rLen;
- 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;
- }
-
- #if USE_AUTOAUTH
- {
- struct sockaddr_in localAddr;
- memset(&localAddr, 0, sizeof(localAddr));
- localAddr.sin_family = AF_INET; // IPv4
- localAddr.sin_port = 1023; // IPv4
- // Attempt to bind to low port for autoauth
- bind(sock, &localAddr, sizeof(localAddr));
- }
- #endif
-
- if( connect(sock, (struct sockaddr *) &serverAddr, sizeof(serverAddr)) < 0 ) {
- fprintf(stderr, "Failed to connect to server\n");
- return -1;
- }
-
- return sock;
-}
-
-/**
- * \brief Authenticate with the server
- * \return Boolean Failure
- */
-int Authenticate(int Socket)
-{
- struct passwd *pwd;
- char *buf;
- int responseCode;
- char salt[32];
- int i;
- regmatch_t matches[4];
-
- if( gbIsAuthenticated ) return 0;
-
- // Get user name
- pwd = getpwuid( getuid() );
-
- // Attempt automatic authentication
- sendf(Socket, "AUTOAUTH %s\n", pwd->pw_name);
-
- // Check if it worked
- buf = ReadLine(Socket);
-
- responseCode = atoi(buf);
- switch( responseCode )
- {
- case 200: // Autoauth succeeded, return
- free(buf);
- break;
-
- case 401: // Untrusted, attempt password authentication
- free(buf);
-
- sendf(Socket, "USER %s\n", pwd->pw_name);
- printf("Using username %s\n", pwd->pw_name);
-
- 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 -1; // 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(pwd->pw_name)+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, pwd->pw_name);
- 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 2; // 2 = Bad Password
- break;
-
- case 404: // Bad Username
- fprintf(stderr, "Bad Username '%s'\n", pwd->pw_name);
- free(buf);
- return 1;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- free(buf);
- return -1;
- }
-
- // Set effective user
- if( gsEffectiveUser ) {
- 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 -1;
-
- case 404:
- printf("Invalid user selected\n");
- free(buf);
- return -1;
-
- default:
- fprintf(stderr, "Unkown response code %i from server\n", responseCode);
- printf("%s\n", buf);
- free(buf);
- exit(-1);
- }
-
- free(buf);
- }
-
- gbIsAuthenticated = 1;
-
- return 0;
-}
-
-
-/**
- * \brief Fill the item information structure
- * \return Boolean Failure
- */
-void PopulateItemList(int Socket)
-{
- char *buf;
- int responseCode;
-
- char *itemType, *itemStart;
- 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(-1);
- }
-
- // - Get item list -
-
- // Expected format:
- // 201 Items <count>
- // 202 Item <count>
- RunRegex(&gArrayRegex, buf, 4, matches, "Malformed server response");
-
- itemType = &buf[ matches[2].rm_so ]; buf[ matches[2].rm_eo ] = '\0';
- count = atoi( &buf[ matches[3].rm_so ] );
-
- // Check array type
- if( strcmp(itemType, "Items") != 0 ) {
- // What the?!
- fprintf(stderr, "Unexpected array type, expected 'Items', got '%s'\n",
- itemType);
- exit(-1);
- }
-
- itemStart = &buf[ matches[3].rm_eo ];
-
- free(buf);
-
- giNumItems = count;
- gaItems = malloc( giNumItems * sizeof(tItem) );
-
- // Fetch item information
- for( i = 0; i < giNumItems; i ++ )
- {
- regmatch_t matches[7];
-
- // Get item info
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- if( responseCode != 202 ) {
- fprintf(stderr, "Unknown response from dispense server (Response Code %i)\n", responseCode);
- exit(-1);
- }
-
- RunRegex(&gItemRegex, buf, 7, matches, "Malformed server response");
-
- buf[ matches[3].rm_eo ] = '\0';
-
- gaItems[i].Type = strdup( buf + matches[3].rm_so );
- gaItems[i].ID = atoi( buf + matches[4].rm_so );
- gaItems[i].Price = atoi( buf + matches[5].rm_so );
- gaItems[i].Desc = strdup( buf + matches[6].rm_so );
-
- free(buf);
- }
-
- // 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 Dispense an item
- * \return Boolean Failure
- */
-int DispenseItem(int Socket, int ItemID)
-{
- int ret, responseCode;
- char *buf;
-
- if( ItemID < 0 || ItemID > giNumItems ) return -1;
-
- // Dispense!
- sendf(Socket, "DISPENSE %s:%i\n", gaItems[ItemID].Type, gaItems[ItemID].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 = 1;
- break;
- case 402:
- printf("Insufficient balance\n");
- ret = 1;
- break;
- case 406:
- printf("Bad item name, bug report\n");
- ret = 1;
- break;
- case 500:
- printf("Item failed to dispense, is the slot empty?\n");
- ret = 1;
- break;
- case 501:
- printf("Dispense not possible (slot empty/permissions)\n");
- ret = 1;
- break;
- default:
- printf("Unknown response code %i ('%s')\n", responseCode, buf);
- ret = -2;
- 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;
-
- sendf(Socket, "ADD %s %i %s\n", Username, 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;
- case 403: // Not in coke
- fprintf(stderr, "You are not in coke (sucker)\n");
- return 1;
- case 404: // Unknown user
- fprintf(stderr, "Unknown user '%s'\n", Username);
- return 2;
- default:
- fprintf(stderr, "Unknown response code %i\n", responseCode);
- return -1;
- }
-
- return -1;
-}
-
-/**
- * \brief Alter a user's balance
- */
-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 -1;
- }
-
- // Fast return on zero
- if( Ammount == 0 ) {
- printf("Are you actually going to give any?\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: return 0; // OK
-
- case 402:
- fprintf(stderr, "Insufficient balance\n");
- return 1;
-
- case 404: // Unknown user
- fprintf(stderr, "Unknown user '%s'\n", Username);
- return 2;
-
- 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 %i %i\n", giMinimumBalance, giMaximumBalance);
- }
- else {
- sendf(Socket, "ENUM_USERS %i\n", giMinimumBalance);
- }
- }
- else {
- if( giMaximumBalance != INT_MAX ) {
- sendf(Socket, "ENUM_USERS - %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: $%4i.%02i (%s)\n", username, bal/100, abs(bal)%100, flags);
- }
-}
-
-int Dispense_AddUser(int Socket, const char *Username)
-{
- char *buf;
- int responseCode, ret;
-
- 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)
-{
- char *buf;
- int responseCode, ret;
-
- // TODO: Pre-validate the string
-
- sendf(Socket, "USER_FLAGS %s %s\n", Username, TypeString);
-
- buf = ReadLine(Socket);
- responseCode = atoi(buf);
-
- switch(responseCode)
- {
- case 200:
- printf("User '%s' updated\n", Username);
- ret = 0;
- break;
-
- case 403:
- printf("Only wheel can modify users\n");
- ret = 1;
- break;
-
- case 404:
- printf("User '%s' does not exist\n", Username);
- ret = 0;
- break;
-
- case 407:
- printf("Flag string is invalid\n");
- ret = 0;
- 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: ");
- #endif
- fflush(stdout);
-
- ret[0] = '\0';
-
- while( !newline )
- {
- if( bufValid ) {
- len = bufValid;
- }
- else {
- len = recv(Socket, buf+bufPos, BUFSIZ-1-bufPos, 0);
- 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;
- bufPos += newLen;
- }
- if( len + bufPos == BUFSIZ - 1 ) bufPos = 0;
- }
-
- #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;
-
- while( isspace(*string) )
- string ++;
-
- for( i = strlen(string); i--; )
- {
- if( isspace(string[i]) )
- string[i] = '\0';
- else
- break;
- }
-
- return string;
-}
-
-int RunRegex(regex_t *regex, const char *string, int nMatches, regmatch_t *matches, const char *errorMessage)
-{
- int ret;