3 * UCC (University [of WA] Computer Club) Electronic Accounting System
5 * SQLite Coke Bank (Accounts Database)
7 * This file is licenced under the 3-clause BSD Licence. See the file
8 * COPYING for full details.
15 #include "../cokebank.h"
18 const char * const csBank_DatabaseSetup =
19 "CREATE TABLE IF NOT EXISTS accounts ("
20 " acct_id INTEGER PRIMARY KEY NOT NULL,"
21 " acct_balance INTEGER NOT NULL DEFAULT 0,"
22 " acct_last_seen DATETIME NOT NULL DEFAULT (datetime('now')),"
23 " acct_name STRING UNIQUE,"
24 " acct_uid INTEGER UNIQUE DEFAULT NULL,"
25 " acct_pin INTEGER DEFAULT NULL," //" acct_pin INTEGER CHECK (acct_pin > 0 AND acct_pin < 10000) DEFAULT NULL,"
26 " acct_is_disabled BOOLEAN NOT NULL DEFAULT false,"
27 " acct_is_coke BOOLEAN NOT NULL DEFAULT false,"
28 " acct_is_admin BOOLEAN NOT NULL DEFAULT false,"
29 " acct_is_door BOOLEAN NOT NULL DEFAULT false,"
30 " acct_is_internal BOOLEAN NOT NULL DEFAULT false"
32 "CREATE TABLE IF NOT EXISTS cards ("
33 " acct_id INTEGER NOT NULL,"
34 " card_name STRING NOT NULL UNIQUE,"
35 " FOREIGN KEY (acct_id) REFERENCES accounts (acct_id) ON DELETE CASCADE"
36 // Deletion of the account frees the card ^ ^ ^
38 "INSERT INTO accounts (acct_name,acct_is_admin,acct_uid) VALUES ('root',1,0);"
39 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_SALES_ACCT"',1,-1);"
40 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_DEBT_ACCT"',1,-2);"
41 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_FREE_ACCT"',1,-3);"
45 struct sAcctIterator // Unused really, just used as a void type
50 int Bank_Initialise(const char *Argument);
51 int Bank_Transfer(int SourceAcct, int DestAcct, int Ammount, const char *Reason);
52 int Bank_GetFlags(int AcctID);
53 int Bank_SetFlags(int AcctID, int Mask, int Value);
54 int Bank_GetBalance(int AcctID);
55 char *Bank_GetAcctName(int AcctID);
56 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query);
57 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query);
58 int Bank_int_IsValidName(const char *Name);
61 sqlite3 *gBank_Database;
64 int Bank_Initialise(const char *Argument)
69 rv = sqlite3_open(Argument, &gBank_Database);
72 fprintf(stderr, "CokeBank: Unable to open database '%s'\n", Argument);
73 fprintf(stderr, "Reason: %s\n", sqlite3_errmsg(gBank_Database));
74 sqlite3_close(gBank_Database);
79 rv = sqlite3_exec(gBank_Database, "SELECT acct_id FROM accounts LIMIT 1", NULL, NULL, &errmsg);
84 else if( rv == SQLITE_NOTFOUND || rv == SQLITE_ERROR )
88 rv = sqlite3_exec(gBank_Database, csBank_DatabaseSetup, NULL, NULL, &errmsg);
89 if( rv != SQLITE_OK ) {
90 fprintf(stderr, "Bank_Initialise - SQLite Error: %s\n", errmsg);
95 Log_Info("SQLite database rebuilt");
100 fprintf(stderr, "Bank_Initialise - SQLite Error: %s (rv = %i)\n", errmsg, rv);
101 sqlite3_free(errmsg);
111 int Bank_Transfer(int SourceUser, int DestUser, int Ammount, const char *Reason)
117 Reason = ""; // Shut GCC up
119 // Begin SQL Transaction
120 sqlite3_exec(gBank_Database, "BEGIN TRANSACTION", NULL, NULL, NULL);
122 // Take from the source
123 query = mkstr("UPDATE accounts SET acct_balance=acct_balance-%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, SourceUser);
124 printf("query = \"%s\"\n", query);
125 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
127 if( rv != SQLITE_OK )
129 fprintf(stderr, "Bank_Transfer - SQLite Error: %s\n", errmsg);
130 sqlite3_free(errmsg);
131 sqlite3_exec(gBank_Database, "ROLLBACK", NULL, NULL, NULL);
135 // Give to the destination
136 query = mkstr("UPDATE accounts SET acct_balance=acct_balance+%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, DestUser);
137 printf("query = \"%s\"\n", query);
138 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
140 if( rv != SQLITE_OK )
142 fprintf(stderr, "Bank_Transfer - SQLite Error: %s\n", errmsg);
143 sqlite3_free(errmsg);
144 sqlite3_exec(gBank_Database, "ROLLBACK", NULL, NULL, NULL);
148 // Commit transaction
149 sqlite3_exec(gBank_Database, "COMMIT", NULL, NULL, NULL);
157 int Bank_GetFlags(int UserID)
159 sqlite3_stmt *statement;
165 "SELECT acct_is_disabled,acct_is_coke,acct_is_admin,acct_is_door,acct_is_internal"
166 " FROM accounts WHERE acct_id=%i LIMIT 1",
169 statement = Bank_int_QuerySingle(gBank_Database, query);
171 if( !statement ) return -1;
176 if( sqlite3_column_int(statement, 0) ) ret |= USER_FLAG_DISABLED;
178 if( sqlite3_column_int(statement, 1) ) ret |= USER_FLAG_COKE;
180 if( sqlite3_column_int(statement, 2) ) ret |= USER_FLAG_ADMIN;
182 if( sqlite3_column_int(statement, 3) ) ret |= USER_FLAG_DOORGROUP;
184 if( sqlite3_column_int(statement, 4) ) ret |= USER_FLAG_INTERNAL;
186 // Destroy and return
187 sqlite3_finalize(statement);
195 int Bank_SetFlags(int UserID, int Mask, int Value)
201 #define MAP_FLAG(name, flag) (Mask&(flag)?(Value&(flag)?","name"=1":","name"=0"):"")
203 "UPDATE accounts SET acct_id=acct_id%s%s%s%s%s WHERE acct_id=%i",// LIMIT 1",
204 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
205 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
206 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
207 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
208 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
214 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
215 if( rv != SQLITE_OK )
217 fprintf(stderr, "Bank_SetUserFlags - SQLite Error: %s\n", errmsg);
218 fprintf(stderr, "query = '%s'\n", query);
220 sqlite3_free(errmsg);
231 int Bank_GetBalance(int AcctID)
233 sqlite3_stmt *statement;
237 query = mkstr("SELECT acct_balance FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
238 statement = Bank_int_QuerySingle(gBank_Database, query);
240 if( !statement ) return INT_MIN;
243 ret = sqlite3_column_int(statement, 0);
245 // Clean up and return
246 sqlite3_finalize(statement);
251 * Get the name of an account
253 char *Bank_GetAcctName(int AcctID)
255 sqlite3_stmt *statement;
259 query = mkstr("SELECT acct_name FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
260 statement = Bank_int_QuerySingle(gBank_Database, query);
262 if( !statement ) return NULL;
265 ret = strdup( (const char*)sqlite3_column_text(statement, 0) );
267 // Clean up and return
268 sqlite3_finalize(statement);
273 * Get an account ID from a name
275 int Bank_GetAcctByName(const char *Name)
278 sqlite3_stmt *statement;
281 if( !Bank_int_IsValidName(Name) ) return -1;
283 query = mkstr("SELECT acct_id FROM accounts WHERE acct_name='%s' LIMIT 1", Name);
284 statement = Bank_int_QuerySingle(gBank_Database, query);
286 if( !statement ) return -1;
288 ret = sqlite3_column_int(statement, 0);
289 if( ret == 0 ) return -1;
291 sqlite3_finalize(statement);
296 * Create a new named account
298 int Bank_CreateAcct(const char *Name)
306 if( !Bank_int_IsValidName(Name) ) return -1;
307 query = mkstr("INSERT INTO accounts (acct_name) VALUES ('%s')", Name);
311 query = strdup("INSERT INTO accounts (acct_name) VALUES (NULL)");
314 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
315 if( rv != SQLITE_OK )
317 fprintf(stderr, "Bank_CreateAcct - SQLite Error: '%s'\n", errmsg);
318 fprintf(stderr, "Query = '%s'\n", query);
319 sqlite3_free(errmsg);
326 return sqlite3_last_insert_rowid(gBank_Database);
330 * Create an iterator for user accounts
332 tAcctIterator *Bank_Iterator(int FlagMask, int FlagValues, int Flags, int MinMaxBalance, time_t LastSeen)
335 const char *balanceClause;
336 const char *lastSeenClause;
337 const char *orderClause;
342 if( Flags & BANK_ITFLAG_MINBALANCE )
343 balanceClause = " AND acct_balance>=";
344 else if( Flags & BANK_ITFLAG_MAXBALANCE )
345 balanceClause = " AND acct_balance<=";
347 balanceClause = " AND 1!=";
351 // Last seen condition
352 if( Flags & BANK_ITFLAG_SEENAFTER )
353 lastSeenClause = " AND acct_last_seen>=";
354 else if( Flags & BANK_ITFLAG_SEENBEFORE )
355 lastSeenClause = " AND acct_last_seen<=";
357 lastSeenClause = " AND datetime(-1,'unixepoch')!=";
361 switch( Flags & BANK_ITFLAG_SORTMASK )
363 case BANK_ITFLAG_SORT_NONE:
367 case BANK_ITFLAG_SORT_NAME:
368 orderClause = "ORDER BY acct_name";
371 case BANK_ITFLAG_SORT_BAL:
372 orderClause = "ORDER BY acct_balance";
375 case BANK_ITFLAG_SORT_LASTSEEN:
376 orderClause = "ORDER BY acct_balance";
380 fprintf(stderr, "BUG: Unknown sort (%x) in SQLite CokeBank\n", Flags & BANK_ITFLAG_SORTMASK);
383 if( !(Flags & BANK_ITFLAG_REVSORT) )
386 #define MAP_FLAG(name, flag) (FlagMask&(flag)?(FlagValues&(flag)?" AND "name"=1":" AND "name"=0"):"")
387 query = mkstr("SELECT acct_id FROM accounts WHERE 1=1"
388 "%s%s%s%s%s" // Flags
390 "%sdatetime(%"PRIu64",'unixepoch')" // Last seen
391 "%s%s" // Sort and direction
393 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
394 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
395 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
396 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
397 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
398 balanceClause, MinMaxBalance,
399 lastSeenClause, (uint64_t)LastSeen,
402 //printf("query = \"%s\"\n", query);
405 ret = Bank_int_MakeStatemnt(gBank_Database, query);
406 if( !ret ) return NULL;
414 * Get the next account in an iterator
416 int Bank_IteratorNext(tAcctIterator *It)
419 rv = sqlite3_step( (sqlite3_stmt*)It );
421 if( rv == SQLITE_DONE ) return -1;
422 if( rv != SQLITE_ROW ) {
423 fprintf(stderr, "Bank_IteratorNext - SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
427 return sqlite3_column_int( (sqlite3_stmt*)It, 0 );
433 void Bank_DelIterator(tAcctIterator *It)
435 sqlite3_finalize( (sqlite3_stmt*)It );
439 * Check user authentication token
441 int Bank_GetUserAuth(const char *Salt, const char *Username, const char *Password)
443 Salt = Password = Username; // Shut up GCC
446 return Bank_GetAcctByName(Username);
453 * Get an account number given a card ID
454 * NOTE: Actually ends up just being an alternate authentication token,
455 * as no checking is done on the ID's validity, save for SQL sanity.
457 int Bank_GetAcctByCard(const char *CardID)
460 sqlite3_stmt *statement;
463 if( !Bank_int_IsValidName(CardID) )
466 query = mkstr("SELECT acct_id FROM cards WHERE card_name='%s' LIMIT 1", CardID);
467 statement = Bank_int_QuerySingle(gBank_Database, query);
469 if( !statement ) return -1;
471 ret = sqlite3_column_int(statement, 0);
473 sqlite3_finalize(statement);
479 * Add a card to an account
481 int Bank_AddAcctCard(int AcctID, const char *CardID)
487 if( !Bank_int_IsValidName(CardID) )
490 // TODO: Check the AcctID too
493 query = mkstr("INSERT INTO cards (acct_id,card_name) VALUES (%i,'%s')",
495 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
496 if( rv == SQLITE_CONSTRAINT )
498 sqlite3_free(errmsg);
500 return 2; // Card in use
502 if( rv != SQLITE_OK )
504 fprintf(stderr, "Bank_AddAcctCard - SQLite Error: '%s'\n", errmsg);
505 fprintf(stderr, "Query = '%s'\n", query);
506 sqlite3_free(errmsg);
516 * Create a SQLite Statement
518 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query)
522 rv = sqlite3_prepare_v2(Database, Query, strlen(Query)+1, &ret, NULL);
523 if( rv != SQLITE_OK ) {
524 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(Database));
525 fprintf(stderr, "query = \"%s\"\n", Query);
533 * Create a SQLite statement and query it for the first row
534 * Returns NULL if the the set is empty
536 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query)
542 ret = Bank_int_MakeStatemnt(Database, Query);
543 if( !ret ) return NULL;
546 rv = sqlite3_step(ret);
547 // - Empty result set
548 if( rv == SQLITE_DONE ) return NULL;
550 if( rv != SQLITE_ROW ) {
551 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
552 fprintf(stderr, "query = \"%s\"\n", Query);
560 * \brief Checks if the passed account name is valid
562 int Bank_int_IsValidName(const char *Name)
566 if( *Name == '\'' ) return 0;