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"
20 const char * const csBank_DatabaseSetup =
21 "CREATE TABLE IF NOT EXISTS accounts ("
22 " acct_id INTEGER PRIMARY KEY NOT NULL,"
23 " acct_balance INTEGER NOT NULL DEFAULT 0,"
24 " acct_last_seen DATETIME NOT NULL DEFAULT (datetime('now')),"
25 " acct_name STRING UNIQUE,"
26 " acct_uid INTEGER UNIQUE DEFAULT NULL,"
27 " acct_pin INTEGER DEFAULT NULL," //" acct_pin INTEGER CHECK (acct_pin > 0 AND acct_pin < 10000) DEFAULT NULL,"
28 " acct_is_disabled BOOLEAN NOT NULL DEFAULT false,"
29 " acct_is_coke BOOLEAN NOT NULL DEFAULT false,"
30 " acct_is_admin BOOLEAN NOT NULL DEFAULT false,"
31 " acct_is_door BOOLEAN NOT NULL DEFAULT false,"
32 " acct_is_internal BOOLEAN NOT NULL DEFAULT false"
34 "CREATE TABLE IF NOT EXISTS cards ("
35 " acct_id INTEGER NOT NULL,"
36 " card_name STRING NOT NULL UNIQUE,"
37 " FOREIGN KEY (acct_id) REFERENCES accounts (acct_id) ON DELETE CASCADE"
38 // Deletion of the account frees the card ^ ^ ^
40 "CREATE TABLE IF NOT EXISTS items ("
41 " item_id INTEGER PRIMARY KEY NOT NULL,"
42 " item_handler STRING NOT NULL,"
43 " item_index INTEGER NOT NULL,"
44 " item_name STRING NOT NULL,"
45 " item_price INTEGER NOT NULL,"
46 " item_is_enabled BOOLEAN NOT NULL DEFAULT true"
48 "INSERT INTO accounts (acct_name,acct_is_admin,acct_uid) VALUES ('root',1,0);"
49 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_SALES_ACCT"',1,-1);"
50 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_DEBT_ACCT"',1,-2);"
51 "INSERT INTO accounts (acct_name,acct_is_internal,acct_uid) VALUES ('"COKEBANK_FREE_ACCT"',1,-3);"
55 struct sAcctIterator // Unused really, just used as a void type
60 int Bank_Initialise(const char *Argument);
61 int Bank_Transfer(int SourceAcct, int DestAcct, int Ammount, const char *Reason);
62 int Bank_GetFlags(int AcctID);
63 int Bank_SetFlags(int AcctID, int Mask, int Value);
64 int Bank_GetBalance(int AcctID);
65 char *Bank_GetAcctName(int AcctID);
66 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query);
67 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query);
68 int Bank_int_IsValidName(const char *Name);
71 sqlite3 *gBank_Database;
74 int Bank_Initialise(const char *Argument)
79 rv = sqlite3_open(Argument, &gBank_Database);
82 fprintf(stderr, "CokeBank: Unable to open database '%s'\n", Argument);
83 fprintf(stderr, "Reason: %s\n", sqlite3_errmsg(gBank_Database));
84 sqlite3_close(gBank_Database);
89 rv = sqlite3_exec(gBank_Database, "SELECT acct_id FROM accounts LIMIT 1", NULL, NULL, &errmsg);
94 else if( rv == SQLITE_NOTFOUND || rv == SQLITE_ERROR )
98 rv = sqlite3_exec(gBank_Database, csBank_DatabaseSetup, NULL, NULL, &errmsg);
99 if( rv != SQLITE_OK ) {
100 fprintf(stderr, "Bank_Initialise - SQLite Error: %s\n", errmsg);
101 sqlite3_free(errmsg);
105 Log_Info("SQLite database rebuilt");
110 fprintf(stderr, "Bank_Initialise - SQLite Error: %s (rv = %i)\n", errmsg, rv);
111 sqlite3_free(errmsg);
121 int Bank_Transfer(int SourceUser, int DestUser, int Ammount, const char *Reason)
127 Reason = ""; // Shut GCC up
129 // Begin SQL Transaction
130 sqlite3_exec(gBank_Database, "BEGIN TRANSACTION", NULL, NULL, NULL);
132 // Take from the source
133 query = mkstr("UPDATE accounts SET acct_balance=acct_balance-%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, SourceUser);
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 // Give to the destination
146 query = mkstr("UPDATE accounts SET acct_balance=acct_balance+%i,acct_last_seen=datetime('now') WHERE acct_id=%i", Ammount, DestUser);
147 printf("query = \"%s\"\n", query);
148 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
150 if( rv != SQLITE_OK )
152 fprintf(stderr, "Bank_Transfer - SQLite Error: %s\n", errmsg);
153 sqlite3_free(errmsg);
154 sqlite3_exec(gBank_Database, "ROLLBACK", NULL, NULL, NULL);
158 // Commit transaction
159 sqlite3_exec(gBank_Database, "COMMIT", NULL, NULL, NULL);
167 int Bank_GetFlags(int UserID)
169 sqlite3_stmt *statement;
175 "SELECT acct_is_disabled,acct_is_coke,acct_is_admin,acct_is_door,acct_is_internal"
176 " FROM accounts WHERE acct_id=%i LIMIT 1",
179 statement = Bank_int_QuerySingle(gBank_Database, query);
181 if( !statement ) return -1;
186 if( sqlite3_column_int(statement, 0) ) ret |= USER_FLAG_DISABLED;
188 if( sqlite3_column_int(statement, 1) ) ret |= USER_FLAG_COKE;
190 if( sqlite3_column_int(statement, 2) ) ret |= USER_FLAG_ADMIN;
192 if( sqlite3_column_int(statement, 3) ) ret |= USER_FLAG_DOORGROUP;
194 if( sqlite3_column_int(statement, 4) ) ret |= USER_FLAG_INTERNAL;
196 // Destroy and return
197 sqlite3_finalize(statement);
205 int Bank_SetFlags(int UserID, int Mask, int Value)
211 #define MAP_FLAG(name, flag) (Mask&(flag)?(Value&(flag)?","name"=1":","name"=0"):"")
213 "UPDATE accounts SET acct_id=acct_id%s%s%s%s%s WHERE acct_id=%i",// LIMIT 1",
214 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
215 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
216 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
217 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
218 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
224 printf("Bank_SetFlags: query=\"%s\"\n", query);
228 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
229 if( rv != SQLITE_OK )
231 fprintf(stderr, "Bank_SetUserFlags - SQLite Error: %s\n", errmsg);
232 fprintf(stderr, "query = '%s'\n", query);
234 sqlite3_free(errmsg);
245 int Bank_GetBalance(int AcctID)
247 sqlite3_stmt *statement;
251 query = mkstr("SELECT acct_balance FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
252 statement = Bank_int_QuerySingle(gBank_Database, query);
254 if( !statement ) return INT_MIN;
257 ret = sqlite3_column_int(statement, 0);
259 // Clean up and return
260 sqlite3_finalize(statement);
265 * Get the name of an account
267 char *Bank_GetAcctName(int AcctID)
269 sqlite3_stmt *statement;
273 query = mkstr("SELECT acct_name FROM accounts WHERE acct_id=%i LIMIT 1", AcctID);
274 statement = Bank_int_QuerySingle(gBank_Database, query);
276 if( !statement ) return NULL;
279 ret = strdup( (const char*)sqlite3_column_text(statement, 0) );
281 // Clean up and return
282 sqlite3_finalize(statement);
287 * Get an account ID from a name
289 int Bank_GetAcctByName(const char *Name)
292 sqlite3_stmt *statement;
295 if( !Bank_int_IsValidName(Name) ) return -1;
297 query = mkstr("SELECT acct_id FROM accounts WHERE acct_name='%s' LIMIT 1", Name);
298 statement = Bank_int_QuerySingle(gBank_Database, query);
300 if( !statement ) return -1;
302 ret = sqlite3_column_int(statement, 0);
303 sqlite3_finalize(statement);
305 if( ret == 0 ) return -1;
310 * Create a new named account
312 int Bank_CreateAcct(const char *Name)
320 if( !Bank_int_IsValidName(Name) ) return -1;
321 query = mkstr("INSERT INTO accounts (acct_name) VALUES ('%s')", Name);
325 query = strdup("INSERT INTO accounts (acct_name) VALUES (NULL)");
328 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
329 if( rv != SQLITE_OK )
331 fprintf(stderr, "Bank_CreateAcct - SQLite Error: '%s'\n", errmsg);
332 fprintf(stderr, "Query = '%s'\n", query);
333 sqlite3_free(errmsg);
340 return sqlite3_last_insert_rowid(gBank_Database);
344 * Create an iterator for user accounts
346 tAcctIterator *Bank_Iterator(int FlagMask, int FlagValues, int Flags, int MinMaxBalance, time_t LastSeen)
349 const char *balanceClause;
350 const char *lastSeenClause;
351 const char *orderClause;
356 if( Flags & BANK_ITFLAG_MINBALANCE )
357 balanceClause = " AND acct_balance>=";
358 else if( Flags & BANK_ITFLAG_MAXBALANCE )
359 balanceClause = " AND acct_balance<=";
361 balanceClause = " AND 1!=";
365 // Last seen condition
366 if( Flags & BANK_ITFLAG_SEENAFTER )
367 lastSeenClause = " AND acct_last_seen>=";
368 else if( Flags & BANK_ITFLAG_SEENBEFORE )
369 lastSeenClause = " AND acct_last_seen<=";
371 lastSeenClause = " AND datetime(-1,'unixepoch')!=";
375 switch( Flags & BANK_ITFLAG_SORTMASK )
377 case BANK_ITFLAG_SORT_NONE:
381 case BANK_ITFLAG_SORT_NAME:
382 orderClause = "ORDER BY acct_name";
385 case BANK_ITFLAG_SORT_BAL:
386 orderClause = "ORDER BY acct_balance";
389 case BANK_ITFLAG_SORT_LASTSEEN:
390 orderClause = "ORDER BY acct_balance";
394 fprintf(stderr, "BUG: Unknown sort (%x) in SQLite CokeBank\n", Flags & BANK_ITFLAG_SORTMASK);
397 if( !(Flags & BANK_ITFLAG_REVSORT) )
400 #define MAP_FLAG(name, flag) (FlagMask&(flag)?(FlagValues&(flag)?" AND "name"=1":" AND "name"=0"):"")
401 query = mkstr("SELECT acct_id FROM accounts WHERE 1=1"
402 "%s%s%s%s%s" // Flags
404 "%sdatetime(%"PRIu64",'unixepoch')" // Last seen
405 "%s%s" // Sort and direction
407 MAP_FLAG("acct_is_coke", USER_FLAG_COKE),
408 MAP_FLAG("acct_is_admin", USER_FLAG_ADMIN),
409 MAP_FLAG("acct_is_door", USER_FLAG_DOORGROUP),
410 MAP_FLAG("acct_is_internal", USER_FLAG_INTERNAL),
411 MAP_FLAG("acct_is_disabled", USER_FLAG_DISABLED),
412 balanceClause, MinMaxBalance,
413 lastSeenClause, (uint64_t)LastSeen,
416 //printf("query = \"%s\"\n", query);
419 ret = Bank_int_MakeStatemnt(gBank_Database, query);
420 if( !ret ) return NULL;
428 * Get the next account in an iterator
430 int Bank_IteratorNext(tAcctIterator *It)
433 rv = sqlite3_step( (sqlite3_stmt*)It );
435 if( rv == SQLITE_DONE ) return -1;
436 if( rv != SQLITE_ROW ) {
437 fprintf(stderr, "Bank_IteratorNext - SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
441 return sqlite3_column_int( (sqlite3_stmt*)It, 0 );
447 void Bank_DelIterator(tAcctIterator *It)
449 sqlite3_finalize( (sqlite3_stmt*)It );
453 * Check user authentication token
455 int Bank_GetUserAuth(const char *Salt, const char *Username, const char *Password)
457 Salt = Password = Username; // Shut up GCC
460 return Bank_GetAcctByName(Username);
467 * Get an account number given a card ID
468 * NOTE: Actually ends up just being an alternate authentication token,
469 * as no checking is done on the ID's validity, save for SQL sanity.
471 int Bank_GetAcctByCard(const char *CardID)
474 sqlite3_stmt *statement;
477 if( !Bank_int_IsValidName(CardID) )
480 query = mkstr("SELECT acct_id FROM cards WHERE card_name='%s' LIMIT 1", CardID);
481 statement = Bank_int_QuerySingle(gBank_Database, query);
483 if( !statement ) return -1;
485 ret = sqlite3_column_int(statement, 0);
487 sqlite3_finalize(statement);
493 * Add a card to an account
495 int Bank_AddAcctCard(int AcctID, const char *CardID)
501 if( !Bank_int_IsValidName(CardID) )
504 // TODO: Check the AcctID too
507 query = mkstr("INSERT INTO cards (acct_id,card_name) VALUES (%i,'%s')",
509 rv = sqlite3_exec(gBank_Database, query, NULL, NULL, &errmsg);
510 if( rv == SQLITE_CONSTRAINT )
512 sqlite3_free(errmsg);
514 return 2; // Card in use
516 if( rv != SQLITE_OK )
518 fprintf(stderr, "Bank_AddAcctCard - SQLite Error: '%s'\n", errmsg);
519 fprintf(stderr, "Query = '%s'\n", query);
520 sqlite3_free(errmsg);
530 * Create a SQLite Statement
532 sqlite3_stmt *Bank_int_MakeStatemnt(sqlite3 *Database, const char *Query)
536 rv = sqlite3_prepare_v2(Database, Query, strlen(Query)+1, &ret, NULL);
537 if( rv != SQLITE_OK ) {
538 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(Database));
539 fprintf(stderr, "query = \"%s\"\n", Query);
547 * Create a SQLite statement and query it for the first row
548 * Returns NULL if the the set is empty
550 sqlite3_stmt *Bank_int_QuerySingle(sqlite3 *Database, const char *Query)
556 printf("Bank_int_QuerySingle: (Query='%s')\n", Query);
560 ret = Bank_int_MakeStatemnt(Database, Query);
563 printf("Bank_int_QuerySingle: RETURN NULL ret=NULL\n");
569 rv = sqlite3_step(ret);
570 // - Empty result set
571 if( rv == SQLITE_DONE ) {
573 printf("Bank_int_QuerySingle: RETURN NULL (rv == SQLITE_DONE)\n");
578 if( rv != SQLITE_ROW ) {
579 fprintf(stderr, "SQLite Error: %s\n", sqlite3_errmsg(gBank_Database));
580 fprintf(stderr, "query = \"%s\"\n", Query);
585 printf("Bank_int_QuerySingle: RETURN %p\n", ret);
591 * \brief Checks if the passed account name is valid
593 int Bank_int_IsValidName(const char *Name)
597 if( *Name == '\'' ) return 0;