1 /*
2 +----------------------------------------------------------------------+
3 | Copyright (c) The PHP Group |
4 +----------------------------------------------------------------------+
5 | This source file is subject to version 3.01 of the PHP license, |
6 | that is bundled with this package in the file LICENSE, and is |
7 | available through the world-wide-web at the following url: |
8 | http://www.php.net/license/3_01.txt |
9 | If you did not receive a copy of the PHP license and are unable to |
10 | obtain it through the world-wide-web, please send a note to |
11 | license@php.net so we can mail you a copy immediately. |
12 +----------------------------------------------------------------------+
13 | Author: Wez Furlong <wez@php.net> |
14 +----------------------------------------------------------------------+
15 */
16
17 #ifdef HAVE_CONFIG_H
18 #include "config.h"
19 #endif
20
21 #include "php.h"
22 #include "php_ini.h"
23 #include "ext/standard/info.h"
24 #include "pdo/php_pdo.h"
25 #include "pdo/php_pdo_driver.h"
26 #include "php_pdo_sqlite.h"
27 #include "php_pdo_sqlite_int.h"
28 #include "zend_exceptions.h"
29 #include "sqlite_driver_arginfo.h"
30
_pdo_sqlite_error(pdo_dbh_t * dbh,pdo_stmt_t * stmt,const char * file,int line)31 int _pdo_sqlite_error(pdo_dbh_t *dbh, pdo_stmt_t *stmt, const char *file, int line) /* {{{ */
32 {
33 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
34 pdo_error_type *pdo_err = stmt ? &stmt->error_code : &dbh->error_code;
35 pdo_sqlite_error_info *einfo = &H->einfo;
36
37 einfo->errcode = sqlite3_errcode(H->db);
38 einfo->file = file;
39 einfo->line = line;
40
41 if (einfo->errcode != SQLITE_OK) {
42 if (einfo->errmsg) {
43 pefree(einfo->errmsg, dbh->is_persistent);
44 }
45 einfo->errmsg = pestrdup((char*)sqlite3_errmsg(H->db), dbh->is_persistent);
46 } else { /* no error */
47 strncpy(*pdo_err, PDO_ERR_NONE, sizeof(*pdo_err));
48 return 0;
49 }
50 switch (einfo->errcode) {
51 case SQLITE_NOTFOUND:
52 strncpy(*pdo_err, "42S02", sizeof(*pdo_err));
53 break;
54
55 case SQLITE_INTERRUPT:
56 strncpy(*pdo_err, "01002", sizeof(*pdo_err));
57 break;
58
59 case SQLITE_NOLFS:
60 strncpy(*pdo_err, "HYC00", sizeof(*pdo_err));
61 break;
62
63 case SQLITE_TOOBIG:
64 strncpy(*pdo_err, "22001", sizeof(*pdo_err));
65 break;
66
67 case SQLITE_CONSTRAINT:
68 strncpy(*pdo_err, "23000", sizeof(*pdo_err));
69 break;
70
71 case SQLITE_ERROR:
72 default:
73 strncpy(*pdo_err, "HY000", sizeof(*pdo_err));
74 break;
75 }
76
77 if (!dbh->methods) {
78 pdo_throw_exception(einfo->errcode, einfo->errmsg, pdo_err);
79 }
80
81 return einfo->errcode;
82 }
83 /* }}} */
84
pdo_sqlite_fetch_error_func(pdo_dbh_t * dbh,pdo_stmt_t * stmt,zval * info)85 static int pdo_sqlite_fetch_error_func(pdo_dbh_t *dbh, pdo_stmt_t *stmt, zval *info)
86 {
87 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
88 pdo_sqlite_error_info *einfo = &H->einfo;
89
90 if (einfo->errcode) {
91 add_next_index_long(info, einfo->errcode);
92 add_next_index_string(info, einfo->errmsg);
93 }
94
95 return 1;
96 }
97
pdo_sqlite_cleanup_callbacks(pdo_sqlite_db_handle * H)98 static void pdo_sqlite_cleanup_callbacks(pdo_sqlite_db_handle *H)
99 {
100 struct pdo_sqlite_func *func;
101
102 while (H->funcs) {
103 func = H->funcs;
104 H->funcs = func->next;
105
106 if (H->db) {
107 /* delete the function from the handle */
108 sqlite3_create_function(H->db,
109 func->funcname,
110 func->argc,
111 SQLITE_UTF8,
112 func,
113 NULL, NULL, NULL);
114 }
115
116 efree((char*)func->funcname);
117 if (!Z_ISUNDEF(func->func)) {
118 zval_ptr_dtor(&func->func);
119 }
120 if (!Z_ISUNDEF(func->step)) {
121 zval_ptr_dtor(&func->step);
122 }
123 if (!Z_ISUNDEF(func->fini)) {
124 zval_ptr_dtor(&func->fini);
125 }
126 efree(func);
127 }
128
129 while (H->collations) {
130 struct pdo_sqlite_collation *collation;
131 collation = H->collations;
132 H->collations = collation->next;
133
134 if (H->db) {
135 /* delete the collation from the handle */
136 sqlite3_create_collation(H->db,
137 collation->name,
138 SQLITE_UTF8,
139 collation,
140 NULL);
141 }
142
143 efree((char*)collation->name);
144 if (!Z_ISUNDEF(collation->callback)) {
145 zval_ptr_dtor(&collation->callback);
146 }
147 efree(collation);
148 }
149 }
150
sqlite_handle_closer(pdo_dbh_t * dbh)151 static int sqlite_handle_closer(pdo_dbh_t *dbh) /* {{{ */
152 {
153 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
154
155 if (H) {
156 pdo_sqlite_error_info *einfo = &H->einfo;
157
158 pdo_sqlite_cleanup_callbacks(H);
159 if (H->db) {
160 #ifdef HAVE_SQLITE3_CLOSE_V2
161 sqlite3_close_v2(H->db);
162 #else
163 sqlite3_close(H->db);
164 #endif
165 H->db = NULL;
166 }
167 if (einfo->errmsg) {
168 pefree(einfo->errmsg, dbh->is_persistent);
169 einfo->errmsg = NULL;
170 }
171 pefree(H, dbh->is_persistent);
172 dbh->driver_data = NULL;
173 }
174 return 0;
175 }
176 /* }}} */
177
sqlite_handle_preparer(pdo_dbh_t * dbh,const char * sql,size_t sql_len,pdo_stmt_t * stmt,zval * driver_options)178 static int sqlite_handle_preparer(pdo_dbh_t *dbh, const char *sql, size_t sql_len, pdo_stmt_t *stmt, zval *driver_options)
179 {
180 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
181 pdo_sqlite_stmt *S = ecalloc(1, sizeof(pdo_sqlite_stmt));
182 int i;
183 const char *tail;
184
185 S->H = H;
186 stmt->driver_data = S;
187 stmt->methods = &sqlite_stmt_methods;
188 stmt->supports_placeholders = PDO_PLACEHOLDER_POSITIONAL|PDO_PLACEHOLDER_NAMED;
189
190 if (PDO_CURSOR_FWDONLY != pdo_attr_lval(driver_options, PDO_ATTR_CURSOR, PDO_CURSOR_FWDONLY)) {
191 H->einfo.errcode = SQLITE_ERROR;
192 pdo_sqlite_error(dbh);
193 return 0;
194 }
195
196 i = sqlite3_prepare_v2(H->db, sql, sql_len, &S->stmt, &tail);
197 if (i == SQLITE_OK) {
198 return 1;
199 }
200
201 pdo_sqlite_error(dbh);
202
203 return 0;
204 }
205
sqlite_handle_doer(pdo_dbh_t * dbh,const char * sql,size_t sql_len)206 static zend_long sqlite_handle_doer(pdo_dbh_t *dbh, const char *sql, size_t sql_len)
207 {
208 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
209 char *errmsg = NULL;
210
211 if (sqlite3_exec(H->db, sql, NULL, NULL, &errmsg) != SQLITE_OK) {
212 pdo_sqlite_error(dbh);
213 if (errmsg)
214 sqlite3_free(errmsg);
215
216 return -1;
217 } else {
218 return sqlite3_changes(H->db);
219 }
220 }
221
pdo_sqlite_last_insert_id(pdo_dbh_t * dbh,const char * name,size_t * len)222 static char *pdo_sqlite_last_insert_id(pdo_dbh_t *dbh, const char *name, size_t *len)
223 {
224 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
225 char *id;
226
227 id = php_pdo_int64_to_str(sqlite3_last_insert_rowid(H->db));
228 *len = strlen(id);
229 return id;
230 }
231
232 /* NB: doesn't handle binary strings... use prepared stmts for that */
sqlite_handle_quoter(pdo_dbh_t * dbh,const char * unquoted,size_t unquotedlen,char ** quoted,size_t * quotedlen,enum pdo_param_type paramtype)233 static int sqlite_handle_quoter(pdo_dbh_t *dbh, const char *unquoted, size_t unquotedlen, char **quoted, size_t *quotedlen, enum pdo_param_type paramtype )
234 {
235 if (unquotedlen > (INT_MAX - 3) / 2) {
236 return 0;
237 }
238 *quoted = safe_emalloc(2, unquotedlen, 3);
239 sqlite3_snprintf(2*unquotedlen + 3, *quoted, "'%q'", unquoted);
240 *quotedlen = strlen(*quoted);
241 return 1;
242 }
243
sqlite_handle_begin(pdo_dbh_t * dbh)244 static int sqlite_handle_begin(pdo_dbh_t *dbh)
245 {
246 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
247 char *errmsg = NULL;
248
249 if (sqlite3_exec(H->db, "BEGIN", NULL, NULL, &errmsg) != SQLITE_OK) {
250 pdo_sqlite_error(dbh);
251 if (errmsg)
252 sqlite3_free(errmsg);
253 return 0;
254 }
255 return 1;
256 }
257
sqlite_handle_commit(pdo_dbh_t * dbh)258 static int sqlite_handle_commit(pdo_dbh_t *dbh)
259 {
260 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
261 char *errmsg = NULL;
262
263 if (sqlite3_exec(H->db, "COMMIT", NULL, NULL, &errmsg) != SQLITE_OK) {
264 pdo_sqlite_error(dbh);
265 if (errmsg)
266 sqlite3_free(errmsg);
267 return 0;
268 }
269 return 1;
270 }
271
sqlite_handle_rollback(pdo_dbh_t * dbh)272 static int sqlite_handle_rollback(pdo_dbh_t *dbh)
273 {
274 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
275 char *errmsg = NULL;
276
277 if (sqlite3_exec(H->db, "ROLLBACK", NULL, NULL, &errmsg) != SQLITE_OK) {
278 pdo_sqlite_error(dbh);
279 if (errmsg)
280 sqlite3_free(errmsg);
281 return 0;
282 }
283 return 1;
284 }
285
pdo_sqlite_get_attribute(pdo_dbh_t * dbh,zend_long attr,zval * return_value)286 static int pdo_sqlite_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *return_value)
287 {
288 switch (attr) {
289 case PDO_ATTR_CLIENT_VERSION:
290 case PDO_ATTR_SERVER_VERSION:
291 ZVAL_STRING(return_value, (char *)sqlite3_libversion());
292 break;
293
294 default:
295 return 0;
296 }
297
298 return 1;
299 }
300
pdo_sqlite_set_attr(pdo_dbh_t * dbh,zend_long attr,zval * val)301 static int pdo_sqlite_set_attr(pdo_dbh_t *dbh, zend_long attr, zval *val)
302 {
303 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
304
305 switch (attr) {
306 case PDO_ATTR_TIMEOUT:
307 sqlite3_busy_timeout(H->db, zval_get_long(val) * 1000);
308 return 1;
309 case PDO_SQLITE_ATTR_EXTENDED_RESULT_CODES:
310 sqlite3_extended_result_codes(H->db, zval_get_long(val));
311 return 1;
312 }
313 return 0;
314 }
315
316 typedef struct {
317 zval val;
318 zend_long row;
319 } aggregate_context;
320
do_callback(struct pdo_sqlite_fci * fc,zval * cb,int argc,sqlite3_value ** argv,sqlite3_context * context,int is_agg)321 static int do_callback(struct pdo_sqlite_fci *fc, zval *cb,
322 int argc, sqlite3_value **argv, sqlite3_context *context,
323 int is_agg)
324 {
325 zval *zargs = NULL;
326 zval retval;
327 int i;
328 int ret;
329 int fake_argc;
330 aggregate_context *agg_context = NULL;
331
332 if (is_agg) {
333 is_agg = 2;
334 }
335
336 fake_argc = argc + is_agg;
337
338 fc->fci.size = sizeof(fc->fci);
339 ZVAL_COPY_VALUE(&fc->fci.function_name, cb);
340 fc->fci.object = NULL;
341 fc->fci.retval = &retval;
342 fc->fci.param_count = fake_argc;
343
344 /* build up the params */
345
346 if (fake_argc) {
347 zargs = safe_emalloc(fake_argc, sizeof(zval), 0);
348 }
349
350 if (is_agg) {
351 agg_context = sqlite3_aggregate_context(context, sizeof(aggregate_context));
352 if (!agg_context) {
353 efree(zargs);
354 return FAILURE;
355 }
356 if (Z_ISUNDEF(agg_context->val)) {
357 ZVAL_NEW_REF(&agg_context->val, &EG(uninitialized_zval));
358 }
359 ZVAL_COPY_VALUE(&zargs[0], &agg_context->val);
360 ZVAL_LONG(&zargs[1], ++agg_context->row);
361 }
362
363 for (i = 0; i < argc; i++) {
364 /* get the value */
365 switch (sqlite3_value_type(argv[i])) {
366 case SQLITE_INTEGER:
367 ZVAL_LONG(&zargs[i + is_agg], sqlite3_value_int(argv[i]));
368 break;
369
370 case SQLITE_FLOAT:
371 ZVAL_DOUBLE(&zargs[i + is_agg], sqlite3_value_double(argv[i]));
372 break;
373
374 case SQLITE_NULL:
375 ZVAL_NULL(&zargs[i + is_agg]);
376 break;
377
378 case SQLITE_BLOB:
379 case SQLITE3_TEXT:
380 default:
381 ZVAL_STRINGL(&zargs[i + is_agg], (char*)sqlite3_value_text(argv[i]), sqlite3_value_bytes(argv[i]));
382 break;
383 }
384 }
385
386 fc->fci.params = zargs;
387
388 if ((ret = zend_call_function(&fc->fci, &fc->fcc)) == FAILURE) {
389 php_error_docref(NULL, E_WARNING, "An error occurred while invoking the callback");
390 }
391
392 /* clean up the params */
393 if (zargs) {
394 for (i = is_agg; i < fake_argc; i++) {
395 zval_ptr_dtor(&zargs[i]);
396 }
397 if (is_agg) {
398 zval_ptr_dtor(&zargs[1]);
399 }
400 efree(zargs);
401 }
402
403 if (!is_agg || !argv) {
404 /* only set the sqlite return value if we are a scalar function,
405 * or if we are finalizing an aggregate */
406 if (!Z_ISUNDEF(retval)) {
407 switch (Z_TYPE(retval)) {
408 case IS_LONG:
409 sqlite3_result_int(context, Z_LVAL(retval));
410 break;
411
412 case IS_NULL:
413 sqlite3_result_null(context);
414 break;
415
416 case IS_DOUBLE:
417 sqlite3_result_double(context, Z_DVAL(retval));
418 break;
419
420 default:
421 if (!try_convert_to_string(&retval)) {
422 ret = FAILURE;
423 break;
424 }
425 sqlite3_result_text(context, Z_STRVAL(retval), Z_STRLEN(retval), SQLITE_TRANSIENT);
426 break;
427 }
428 } else {
429 sqlite3_result_error(context, "failed to invoke callback", 0);
430 }
431
432 if (agg_context) {
433 zval_ptr_dtor(&agg_context->val);
434 }
435 } else {
436 /* we're stepping in an aggregate; the return value goes into
437 * the context */
438 if (agg_context) {
439 if (Z_ISUNDEF(retval)) {
440 zval_ptr_dtor(&agg_context->val);
441 return FAILURE;
442 }
443 zval_ptr_dtor(Z_REFVAL(agg_context->val));
444 ZVAL_COPY_VALUE(Z_REFVAL(agg_context->val), &retval);
445 ZVAL_UNDEF(&retval);
446 }
447 }
448
449 if (!Z_ISUNDEF(retval)) {
450 zval_ptr_dtor(&retval);
451 }
452
453 return ret;
454 }
455
php_sqlite3_func_callback(sqlite3_context * context,int argc,sqlite3_value ** argv)456 static void php_sqlite3_func_callback(sqlite3_context *context, int argc,
457 sqlite3_value **argv)
458 {
459 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
460
461 do_callback(&func->afunc, &func->func, argc, argv, context, 0);
462 }
463
php_sqlite3_func_step_callback(sqlite3_context * context,int argc,sqlite3_value ** argv)464 static void php_sqlite3_func_step_callback(sqlite3_context *context, int argc,
465 sqlite3_value **argv)
466 {
467 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
468
469 do_callback(&func->astep, &func->step, argc, argv, context, 1);
470 }
471
php_sqlite3_func_final_callback(sqlite3_context * context)472 static void php_sqlite3_func_final_callback(sqlite3_context *context)
473 {
474 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
475
476 do_callback(&func->afini, &func->fini, 0, NULL, context, 1);
477 }
478
php_sqlite3_collation_callback(void * context,int string1_len,const void * string1,int string2_len,const void * string2)479 static int php_sqlite3_collation_callback(void *context,
480 int string1_len, const void *string1,
481 int string2_len, const void *string2)
482 {
483 int ret;
484 zval zargs[2];
485 zval retval;
486 struct pdo_sqlite_collation *collation = (struct pdo_sqlite_collation*) context;
487
488 collation->fc.fci.size = sizeof(collation->fc.fci);
489 ZVAL_COPY_VALUE(&collation->fc.fci.function_name, &collation->callback);
490 collation->fc.fci.object = NULL;
491 collation->fc.fci.retval = &retval;
492
493 // Prepare the arguments.
494 ZVAL_STRINGL(&zargs[0], (char *) string1, string1_len);
495 ZVAL_STRINGL(&zargs[1], (char *) string2, string2_len);
496 collation->fc.fci.param_count = 2;
497 collation->fc.fci.params = zargs;
498
499 if ((ret = zend_call_function(&collation->fc.fci, &collation->fc.fcc)) == FAILURE) {
500 php_error_docref(NULL, E_WARNING, "An error occurred while invoking the callback");
501 } else if (!Z_ISUNDEF(retval)) {
502 if (Z_TYPE(retval) != IS_LONG) {
503 convert_to_long_ex(&retval);
504 }
505 ret = 0;
506 if (Z_LVAL(retval) > 0) {
507 ret = 1;
508 } else if (Z_LVAL(retval) < 0) {
509 ret = -1;
510 }
511 zval_ptr_dtor(&retval);
512 }
513
514 zval_ptr_dtor(&zargs[0]);
515 zval_ptr_dtor(&zargs[1]);
516
517 return ret;
518 }
519
520 /* {{{ bool SQLite::sqliteCreateFunction(string name, callable callback [, int argcount, int flags])
521 Registers a UDF with the sqlite db handle */
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateFunction)522 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateFunction)
523 {
524 struct pdo_sqlite_func *func;
525 zend_fcall_info fci;
526 zend_fcall_info_cache fcc;
527 char *func_name;
528 size_t func_name_len;
529 zend_long argc = -1;
530 zend_long flags = 0;
531 pdo_dbh_t *dbh;
532 pdo_sqlite_db_handle *H;
533 int ret;
534
535 ZEND_PARSE_PARAMETERS_START(2, 4)
536 Z_PARAM_STRING(func_name, func_name_len)
537 Z_PARAM_FUNC(fci, fcc)
538 Z_PARAM_OPTIONAL
539 Z_PARAM_LONG(argc)
540 Z_PARAM_LONG(flags)
541 ZEND_PARSE_PARAMETERS_END();
542
543 dbh = Z_PDO_DBH_P(ZEND_THIS);
544 PDO_CONSTRUCT_CHECK;
545
546 H = (pdo_sqlite_db_handle *)dbh->driver_data;
547
548 func = (struct pdo_sqlite_func*)ecalloc(1, sizeof(*func));
549
550 ret = sqlite3_create_function(H->db, func_name, argc, flags | SQLITE_UTF8,
551 func, php_sqlite3_func_callback, NULL, NULL);
552 if (ret == SQLITE_OK) {
553 func->funcname = estrdup(func_name);
554
555 ZVAL_COPY(&func->func, &fci.function_name);
556
557 func->argc = argc;
558
559 func->next = H->funcs;
560 H->funcs = func;
561
562 RETURN_TRUE;
563 }
564
565 efree(func);
566 RETURN_FALSE;
567 }
568 /* }}} */
569
570 /* {{{ bool SQLite::sqliteCreateAggregate(string name, callable step, callable fini [, int argcount])
571 Registers a UDF with the sqlite db handle */
572
573 /* The step function should have the prototype:
574 mixed step(mixed $context, int $rownumber, $value [, $value2 [, ...]])
575
576 $context will be null for the first row; on subsequent rows it will have
577 the value that was previously returned from the step function; you should
578 use this to maintain state for the aggregate.
579
580 The fini function should have the prototype:
581 mixed fini(mixed $context, int $rownumber)
582
583 $context will hold the return value from the very last call to the step function.
584 rownumber will hold the number of rows over which the aggregate was performed.
585 The return value of this function will be used as the return value for this
586 aggregate UDF.
587 */
588
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateAggregate)589 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateAggregate)
590 {
591 struct pdo_sqlite_func *func;
592 zend_fcall_info step_fci, fini_fci;
593 zend_fcall_info_cache step_fcc, fini_fcc;
594 char *func_name;
595 size_t func_name_len;
596 zend_long argc = -1;
597 pdo_dbh_t *dbh;
598 pdo_sqlite_db_handle *H;
599 int ret;
600
601 ZEND_PARSE_PARAMETERS_START(3, 4)
602 Z_PARAM_STRING(func_name, func_name_len)
603 Z_PARAM_FUNC(step_fci, step_fcc)
604 Z_PARAM_FUNC(fini_fci, fini_fcc)
605 Z_PARAM_OPTIONAL
606 Z_PARAM_LONG(argc)
607 ZEND_PARSE_PARAMETERS_END();
608
609 dbh = Z_PDO_DBH_P(ZEND_THIS);
610 PDO_CONSTRUCT_CHECK;
611
612 H = (pdo_sqlite_db_handle *)dbh->driver_data;
613
614 func = (struct pdo_sqlite_func*)ecalloc(1, sizeof(*func));
615
616 ret = sqlite3_create_function(H->db, func_name, argc, SQLITE_UTF8,
617 func, NULL, php_sqlite3_func_step_callback, php_sqlite3_func_final_callback);
618 if (ret == SQLITE_OK) {
619 func->funcname = estrdup(func_name);
620
621 ZVAL_COPY(&func->step, &step_fci.function_name);
622
623 ZVAL_COPY(&func->fini, &fini_fci.function_name);
624
625 func->argc = argc;
626
627 func->next = H->funcs;
628 H->funcs = func;
629
630 RETURN_TRUE;
631 }
632
633 efree(func);
634 RETURN_FALSE;
635 }
636 /* }}} */
637
638 /* {{{ bool SQLite::sqliteCreateCollation(string name, callable callback)
639 Registers a collation with the sqlite db handle */
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateCollation)640 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateCollation)
641 {
642 struct pdo_sqlite_collation *collation;
643 zend_fcall_info fci;
644 zend_fcall_info_cache fcc;
645 char *collation_name;
646 size_t collation_name_len;
647 pdo_dbh_t *dbh;
648 pdo_sqlite_db_handle *H;
649 int ret;
650
651 ZEND_PARSE_PARAMETERS_START(2, 2)
652 Z_PARAM_STRING(collation_name, collation_name_len)
653 Z_PARAM_FUNC(fci, fcc)
654 ZEND_PARSE_PARAMETERS_END();
655
656 dbh = Z_PDO_DBH_P(ZEND_THIS);
657 PDO_CONSTRUCT_CHECK;
658
659 H = (pdo_sqlite_db_handle *)dbh->driver_data;
660
661 collation = (struct pdo_sqlite_collation*)ecalloc(1, sizeof(*collation));
662
663 ret = sqlite3_create_collation(H->db, collation_name, SQLITE_UTF8, collation, php_sqlite3_collation_callback);
664 if (ret == SQLITE_OK) {
665 collation->name = estrdup(collation_name);
666
667 ZVAL_COPY(&collation->callback, &fci.function_name);
668
669 collation->next = H->collations;
670 H->collations = collation;
671
672 RETURN_TRUE;
673 }
674
675 efree(collation);
676 RETURN_FALSE;
677 }
678 /* }}} */
679
get_driver_methods(pdo_dbh_t * dbh,int kind)680 static const zend_function_entry *get_driver_methods(pdo_dbh_t *dbh, int kind)
681 {
682 switch (kind) {
683 case PDO_DBH_DRIVER_METHOD_KIND_DBH:
684 return class_PDO_SQLite_Ext_methods;
685
686 default:
687 return NULL;
688 }
689 }
690
pdo_sqlite_request_shutdown(pdo_dbh_t * dbh)691 static void pdo_sqlite_request_shutdown(pdo_dbh_t *dbh)
692 {
693 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
694 /* unregister functions, so that they don't linger for the next
695 * request */
696 if (H) {
697 pdo_sqlite_cleanup_callbacks(H);
698 }
699 }
700
701 static const struct pdo_dbh_methods sqlite_methods = {
702 sqlite_handle_closer,
703 sqlite_handle_preparer,
704 sqlite_handle_doer,
705 sqlite_handle_quoter,
706 sqlite_handle_begin,
707 sqlite_handle_commit,
708 sqlite_handle_rollback,
709 pdo_sqlite_set_attr,
710 pdo_sqlite_last_insert_id,
711 pdo_sqlite_fetch_error_func,
712 pdo_sqlite_get_attribute,
713 NULL, /* check_liveness: not needed */
714 get_driver_methods,
715 pdo_sqlite_request_shutdown,
716 NULL
717 };
718
make_filename_safe(const char * filename)719 static char *make_filename_safe(const char *filename)
720 {
721 if (!filename) {
722 return NULL;
723 }
724 if (*filename && memcmp(filename, ":memory:", sizeof(":memory:"))) {
725 char *fullpath = expand_filepath(filename, NULL);
726
727 if (!fullpath) {
728 return NULL;
729 }
730
731 if (php_check_open_basedir(fullpath)) {
732 efree(fullpath);
733 return NULL;
734 }
735 return fullpath;
736 }
737 return estrdup(filename);
738 }
739
authorizer(void * autharg,int access_type,const char * arg3,const char * arg4,const char * arg5,const char * arg6)740 static int authorizer(void *autharg, int access_type, const char *arg3, const char *arg4,
741 const char *arg5, const char *arg6)
742 {
743 char *filename;
744 switch (access_type) {
745 case SQLITE_COPY: {
746 filename = make_filename_safe(arg4);
747 if (!filename) {
748 return SQLITE_DENY;
749 }
750 efree(filename);
751 return SQLITE_OK;
752 }
753
754 case SQLITE_ATTACH: {
755 filename = make_filename_safe(arg3);
756 if (!filename) {
757 return SQLITE_DENY;
758 }
759 efree(filename);
760 return SQLITE_OK;
761 }
762
763 default:
764 /* access allowed */
765 return SQLITE_OK;
766 }
767 }
768
pdo_sqlite_handle_factory(pdo_dbh_t * dbh,zval * driver_options)769 static int pdo_sqlite_handle_factory(pdo_dbh_t *dbh, zval *driver_options) /* {{{ */
770 {
771 pdo_sqlite_db_handle *H;
772 int i, ret = 0;
773 zend_long timeout = 60, flags;
774 char *filename;
775
776 H = pecalloc(1, sizeof(pdo_sqlite_db_handle), dbh->is_persistent);
777
778 H->einfo.errcode = 0;
779 H->einfo.errmsg = NULL;
780 dbh->driver_data = H;
781
782 /* skip all but this one param event */
783 dbh->skip_param_evt = 0x7F ^ (1 << PDO_PARAM_EVT_EXEC_PRE);
784
785 filename = make_filename_safe(dbh->data_source);
786
787 if (!filename) {
788 zend_throw_exception_ex(php_pdo_get_exception(), 0,
789 "open_basedir prohibits opening %s",
790 dbh->data_source);
791 goto cleanup;
792 }
793
794 flags = pdo_attr_lval(driver_options, PDO_SQLITE_ATTR_OPEN_FLAGS, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE);
795
796 i = sqlite3_open_v2(filename, &H->db, flags, NULL);
797
798 efree(filename);
799
800 if (i != SQLITE_OK) {
801 pdo_sqlite_error(dbh);
802 goto cleanup;
803 }
804
805 if (PG(open_basedir) && *PG(open_basedir)) {
806 sqlite3_set_authorizer(H->db, authorizer, NULL);
807 }
808
809 if (driver_options) {
810 timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, timeout);
811 }
812 sqlite3_busy_timeout(H->db, timeout * 1000);
813
814 dbh->alloc_own_columns = 1;
815 dbh->max_escaped_char_length = 2;
816
817 ret = 1;
818
819 cleanup:
820 dbh->methods = &sqlite_methods;
821
822 return ret;
823 }
824 /* }}} */
825
826 const pdo_driver_t pdo_sqlite_driver = {
827 PDO_DRIVER_HEADER(sqlite),
828 pdo_sqlite_handle_factory
829 };
830
