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.
14 #include "../cokebank.h"
17 const char * const csBank_DatabaseSetup =
18 "CREATE TABLE IF NOT EXISTS accounts ("
19 " acct_id INTEGER PRIMARY KEY NOT NULL,"
20 " acct_balance INTEGER NOT NULL DEFAULT 0,"
21 " acct_last_seen DATETIME NOT NULL DEFAULT (datetime('now')),"
22 " acct_name STRING UNIQUE,"
23 " acct_uid INTEGER UNIQUE DEFAULT NULL,"
24 " acct_pin INTEGER DEFAULT NULL," //" acct_pin INTEGER CHECK (acct_pin > 0 AND acct_pin < 10000) DEFAULT NULL,"
25 " acct_is_disabled BOOLEAN NOT NULL DEFAULT false,"
26 " acct_is_coke BOOLEAN NOT NULL DEFAULT false,"
27 " acct_is_admin BOOLEAN NOT NULL DEFAULT false,"
28 " acct_is_door BOOLEAN NOT NULL DEFAULT false,"
29 " acct_is_internal BOOLEAN NOT NULL DEFAULT false"
31 "CREATE TABLE IF NOT EXISTS cards ("
32 " acct_id INTEGER NOT NULL,"
33 " card_name STRING NOT NULL UNIQUE,"
34 " FOREIGN KEY (acct_id) REFERENCES accounts (acct_id) ON DELETE CASCADE"
35 // Deletion of the account frees the card ^ ^ ^
37 "INSERT INTO accounts (acct_name,acct_is_admin,acct_uid) VALUES ('root',1,0);"
38 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_SALES_ACCT"',1,-1);"
39 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_DEBT_ACCT"',1,-2);"
40 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_FREE_ACCT"',1,-3);"
44 struct sAcctIterator // Unused really, just used as a void type
49 int Bank_Initialise(const char *Argument);
50 int Bank_Transfer(int SourceAcct, int DestAcct, int Ammount, const char *Reason);
51 int Bank_GetFlags(int AcctID);
52 int Bank_SetFlags(int AcctID, int Mask, int Value);
53 int Bank_GetBalance(int AcctID);
54 char *Bank_GetAcctName(int AcctID);
55 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query);
56 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query);
57 int Bank_int_IsValidName(const char *Name);
60 sqlite3 *gBank_Database;
63 int Bank_Initialise(const char *Argument)
68 rv = sqlite3_open(Argument, &gBank_Database);
71 fprintf(stderr, "CokeBank: Unable to open database '%s'\n", Argument);
72 fprintf(stderr, "Reason: %s\n", sqlite3_errmsg(gBank_Database));
73 sqlite3_close(gBank_Database);
78 rv = sqlite3_exec(gBank_Database, "SELECT acct_id FROM accounts LIMIT 1", NULL, NULL, &errmsg);
83 else if( rv == SQLITE_NOTFOUND || rv == SQLITE_ERROR )
87 rv = sqlite3_exec(gBank_Database, csBank_DatabaseSetup, NULL, NULL, &errmsg);
88 if( rv != SQLITE_OK ) {
89 fprintf(stderr, "Bank_Initialise - SQLite Error: %s\n", errmsg);
97 fprintf(stderr, "Bank_Initialise - SQLite Error: %s (rv = %i)\n", errmsg, rv);
108 int Bank_Transfer(int SourceUser, int DestUser, int Ammount, const char *Reason)
114 Reason = ""; // Shut GCC up
116 // Begin SQL Transaction
117 sqlite3_exec(gBank_Database, "BEGIN TRANSACTION", NULL, NULL, NULL);
119 // Take from the source
120 query = mkstr("UPDATE accounts SET acct_balance=acct_balance-%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, SourceUser);
121 printf("query = \"%s\"\n", query);
122 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
124 if( rv != SQLITE_OK )
126 fprintf(stderr, "Bank_Transfer - SQLite Error: %s\n", errmsg);
127 sqlite3_free(errmsg);
128 sqlite3_exec(gBank_Database, "ROLLBACK", NULL, NULL, NULL);
132 // Give to the destination
133 query = mkstr("UPDATE accounts SET acct_balance=acct_balance+%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, DestUser);
134 printf("query = \"%s\"\n", query);
135 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
137 if( rv != SQLITE_OK )
139 fprintf(stderr, "Bank_Transfer - SQLite Error: %s\n", errmsg);
140 sqlite3_free(errmsg);
141 sqlite3_exec(gBank_Database, "ROLLBACK", NULL, NULL, NULL);
145 // Commit transaction
146 sqlite3_exec(gBank_Database, "COMMIT", NULL, NULL, NULL);
154 int Bank_GetFlags(int UserID)
156 sqlite3_stmt *statement;
162 "SELECT acct_is_disabled,acct_is_coke,acct_is_wheel,acct_is_door,acct_is_internal"
163 " FROM accounts WHERE acct_id=%i LIMIT 1",
166 statement = Bank_int_QuerySingle(gBank_Database, query);
168 if( !statement ) return -1;
173 if( sqlite3_column_int(statement, 0) ) ret |= USER_FLAG_DISABLED;
175 if( sqlite3_column_int(statement, 1) ) ret |= USER_FLAG_COKE;
177 if( sqlite3_column_int(statement, 2) ) ret |= USER_FLAG_ADMIN;
179 if( sqlite3_column_int(statement, 3) ) ret |= USER_FLAG_DOORGROUP;
181 if( sqlite3_column_int(statement, 4) ) ret |= USER_FLAG_INTERNAL;
183 // Destroy and return
184 sqlite3_finalize(statement);
192 int Bank_SetFlags(int UserID, int Mask, int Value)
198 #define MAP_FLAG(name, flag) (Mask&(flag)?(Value&(flag)?","name"=1":","name"=0"):"")
200 "UPDATE accounts SET acct_id=acct_id%s%s%s%s%s WHERE acct_id=%i",// LIMIT 1",
201 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
202 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
203 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
204 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
205 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
211 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
212 if( rv != SQLITE_OK )
214 fprintf(stderr, "Bank_SetUserFlags - SQLite Error: %s\n", errmsg);
215 fprintf(stderr, "query = '%s'\n", query);
217 sqlite3_free(errmsg);
228 int Bank_GetBalance(int AcctID)
230 sqlite3_stmt *statement;
234 query = mkstr("SELECT acct_balance FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
235 statement = Bank_int_QuerySingle(gBank_Database, query);
237 if( !statement ) return INT_MIN;
240 ret = sqlite3_column_int(statement, 0);
242 // Clean up and return
243 sqlite3_finalize(statement);
248 * Get the name of an account
250 char *Bank_GetAcctName(int AcctID)
252 sqlite3_stmt *statement;
256 query = mkstr("SELECT acct_name FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
257 statement = Bank_int_QuerySingle(gBank_Database, query);
259 if( !statement ) return NULL;
262 ret = strdup( (const char*)sqlite3_column_text(statement, 0) );
264 // Clean up and return
265 sqlite3_finalize(statement);
270 * Get an account ID from a name
272 int Bank_GetAcctByName(const char *Name)
275 sqlite3_stmt *statement;
278 if( !Bank_int_IsValidName(Name) ) return -1;
280 query = mkstr("SELECT acct_id FROM accounts WHERE acct_name='%s' LIMIT 1", Name);
281 statement = Bank_int_QuerySingle(gBank_Database, query);
283 if( !statement ) return -1;
285 ret = sqlite3_column_int(statement, 0);
286 if( ret == 0 ) return -1;
288 sqlite3_finalize(statement);
293 * Create a new named account
295 int Bank_CreateAcct(const char *Name)
303 if( !Bank_int_IsValidName(Name) ) return -1;
304 query = mkstr("INSERT INTO accounts (acct_name) VALUES ('%s')", Name);
308 query = strdup("INSERT INTO accounts (acct_name) VALUES (NULL)");
311 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
312 if( rv != SQLITE_OK )
314 fprintf(stderr, "Bank_CreateAcct - SQLite Error: '%s'\n", errmsg);
315 fprintf(stderr, "Query = '%s'\n", query);
316 sqlite3_free(errmsg);
323 return sqlite3_last_insert_rowid(gBank_Database);
327 * Create an iterator for user accounts
329 tAcctIterator *Bank_Iterator(int FlagMask, int FlagValues, int Flags, int MinMaxBalance, time_t LastSeen)
332 const char *balanceClause;
333 const char *lastSeenClause;
334 const char *orderClause;
338 if( Flags & BANK_ITFLAG_MINBALANCE )
339 balanceClause = " AND acct_balance>=";
340 else if( Flags & BANK_ITFLAG_MAXBALANCE )
341 balanceClause = " AND acct_balance<=";
343 balanceClause = " AND 1!=";
347 if( Flags & BANK_ITFLAG_SEENAFTER )
348 lastSeenClause = " AND acct_last_seen>=";
349 else if( Flags & BANK_ITFLAG_SEENBEFORE )
350 lastSeenClause = " AND acct_last_seen<=";
352 lastSeenClause = " AND datetime(-1,'unixepoch')!=";
355 switch( Flags & BANK_ITFLAG_SORTMASK )
357 case BANK_ITFLAG_SORT_NONE:
361 case BANK_ITFLAG_SORT_NAME:
362 orderClause = "ORDER BY acct_name";
365 case BANK_ITFLAG_SORT_BAL:
366 orderClause = "ORDER BY acct_balance";
369 case BANK_ITFLAG_SORT_LASTSEEN:
370 orderClause = "ORDER BY acct_balance";
374 fprintf(stderr, "BUG: Unknown sort (%x) in SQLite CokeBank\n", Flags & BANK_ITFLAG_SORTMASK);
377 if( !(Flags & BANK_ITFLAG_REVSORT) )
380 #define MAP_FLAG(name, flag) (FlagMask&(flag)?(FlagValues&(flag)?" AND "name"=1":" AND "name"=0"):"")
381 query = mkstr("SELECT acct_id FROM accounts WHERE 1=1"
382 "%s%s%s%s%s" // Flags
384 "%sdatetime(%lli,'unixepoch')" // Last seen
385 "%s%s" // Sort and direction
387 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
388 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
389 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
390 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
391 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
392 balanceClause, MinMaxBalance,
393 lastSeenClause, LastSeen,
396 //printf("query = \"%s\"\n", query);
399 ret = Bank_int_MakeStatemnt(gBank_Database, query);
400 if( !ret ) return NULL;
408 * Get the next account in an iterator
410 int Bank_IteratorNext(tAcctIterator *It)
413 rv = sqlite3_step( (sqlite3_stmt*)It );
415 if( rv == SQLITE_DONE ) return -1;
416 if( rv != SQLITE_ROW ) {
417 fprintf(stderr, "Bank_IteratorNext - SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
421 return sqlite3_column_int( (sqlite3_stmt*)It, 0 );
427 void Bank_DelIterator(tAcctIterator *It)
429 sqlite3_finalize( (sqlite3_stmt*)It );
433 * Check user authentication token
435 int Bank_GetUserAuth(const char *Salt, const char *Username, const char *Password)
437 Salt = Password = Username; // Shut up GCC
440 return Bank_GetAcctByName(Username);
447 * Get an account number given a card ID
448 * NOTE: Actually ends up just being an alternate authentication token,
449 * as no checking is done on the ID's validity, save for SQL sanity.
451 int Bank_GetAcctByCard(const char *CardID)
454 sqlite3_stmt *statement;
457 if( !Bank_int_IsValidName(CardID) )
460 query = mkstr("SELECT acct_id FROM cards WHERE card_name='%s' LIMIT 1", CardID);
461 statement = Bank_int_QuerySingle(gBank_Database, query);
463 if( !statement ) return -1;
465 ret = sqlite3_column_int(statement, 0);
467 sqlite3_finalize(statement);
473 * Add a card to an account
475 int Bank_AddAcctCard(int AcctID, const char *CardID)
481 if( !Bank_int_IsValidName(CardID) )
484 // TODO: Check the AcctID too
487 query = mkstr("INSERT INTO cards (acct_id,card_name) VALUES (%i,'%s')",
489 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
490 if( rv == SQLITE_CONSTRAINT )
492 sqlite3_free(errmsg);
494 return 2; // Card in use
496 if( rv != SQLITE_OK )
498 fprintf(stderr, "Bank_AddAcctCard - SQLite Error: '%s'\n", errmsg);
499 fprintf(stderr, "Query = '%s'\n", query);
500 sqlite3_free(errmsg);
510 * Create a SQLite Statement
512 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query)
516 rv = sqlite3_prepare_v2(Database, Query, strlen(Query)+1, &ret, NULL);
517 if( rv != SQLITE_OK ) {
518 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(Database));
519 fprintf(stderr, "query = \"%s\"\n", Query);
527 * Create a SQLite statement and query it for the first row
528 * Returns NULL if the the set is empty
530 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query)
536 ret = Bank_int_MakeStatemnt(Database, Query);
537 if( !ret ) return NULL;
540 rv = sqlite3_step(ret);
541 // - Empty result set
542 if( rv == SQLITE_DONE ) return NULL;
544 if( rv != SQLITE_ROW ) {
545 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
546 fprintf(stderr, "query = \"%s\"\n", Query);
554 * \brief Checks if the passed account name is valid
556 int Bank_int_IsValidName(const char *Name)
560 if( *Name == '\'' ) return 0;