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 | https://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 void 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
pdo_sqlite_cleanup_callbacks(pdo_sqlite_db_handle * H)96 static void pdo_sqlite_cleanup_callbacks(pdo_sqlite_db_handle *H)
97 {
98 struct pdo_sqlite_func *func;
99
100 while (H->funcs) {
101 func = H->funcs;
102 H->funcs = func->next;
103
104 if (H->db) {
105 /* delete the function from the handle */
106 sqlite3_create_function(H->db,
107 func->funcname,
108 func->argc,
109 SQLITE_UTF8,
110 func,
111 NULL, NULL, NULL);
112 }
113
114 efree((char*)func->funcname);
115 if (!Z_ISUNDEF(func->func)) {
116 zval_ptr_dtor(&func->func);
117 }
118 if (!Z_ISUNDEF(func->step)) {
119 zval_ptr_dtor(&func->step);
120 }
121 if (!Z_ISUNDEF(func->fini)) {
122 zval_ptr_dtor(&func->fini);
123 }
124 efree(func);
125 }
126
127 while (H->collations) {
128 struct pdo_sqlite_collation *collation;
129 collation = H->collations;
130 H->collations = collation->next;
131
132 if (H->db) {
133 /* delete the collation from the handle */
134 sqlite3_create_collation(H->db,
135 collation->name,
136 SQLITE_UTF8,
137 collation,
138 NULL);
139 }
140
141 efree((char*)collation->name);
142 if (!Z_ISUNDEF(collation->callback)) {
143 zval_ptr_dtor(&collation->callback);
144 }
145 efree(collation);
146 }
147 }
148
sqlite_handle_closer(pdo_dbh_t * dbh)149 static void sqlite_handle_closer(pdo_dbh_t *dbh) /* {{{ */
150 {
151 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
152
153 if (H) {
154 pdo_sqlite_error_info *einfo = &H->einfo;
155
156 pdo_sqlite_cleanup_callbacks(H);
157 if (H->db) {
158 #ifdef HAVE_SQLITE3_CLOSE_V2
159 sqlite3_close_v2(H->db);
160 #else
161 sqlite3_close(H->db);
162 #endif
163 H->db = NULL;
164 }
165 if (einfo->errmsg) {
166 pefree(einfo->errmsg, dbh->is_persistent);
167 einfo->errmsg = NULL;
168 }
169 pefree(H, dbh->is_persistent);
170 dbh->driver_data = NULL;
171 }
172 }
173 /* }}} */
174
sqlite_handle_preparer(pdo_dbh_t * dbh,zend_string * sql,pdo_stmt_t * stmt,zval * driver_options)175 static bool sqlite_handle_preparer(pdo_dbh_t *dbh, zend_string *sql, pdo_stmt_t *stmt, zval *driver_options)
176 {
177 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
178 pdo_sqlite_stmt *S = ecalloc(1, sizeof(pdo_sqlite_stmt));
179 int i;
180 const char *tail;
181
182 S->H = H;
183 stmt->driver_data = S;
184 stmt->methods = &sqlite_stmt_methods;
185 stmt->supports_placeholders = PDO_PLACEHOLDER_POSITIONAL|PDO_PLACEHOLDER_NAMED;
186
187 if (PDO_CURSOR_FWDONLY != pdo_attr_lval(driver_options, PDO_ATTR_CURSOR, PDO_CURSOR_FWDONLY)) {
188 H->einfo.errcode = SQLITE_ERROR;
189 pdo_sqlite_error(dbh);
190 return false;
191 }
192
193 i = sqlite3_prepare_v2(H->db, ZSTR_VAL(sql), ZSTR_LEN(sql), &S->stmt, &tail);
194 if (i == SQLITE_OK) {
195 return true;
196 }
197
198 pdo_sqlite_error(dbh);
199
200 return false;
201 }
202
sqlite_handle_doer(pdo_dbh_t * dbh,const zend_string * sql)203 static zend_long sqlite_handle_doer(pdo_dbh_t *dbh, const zend_string *sql)
204 {
205 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
206
207 if (sqlite3_exec(H->db, ZSTR_VAL(sql), NULL, NULL, NULL) != SQLITE_OK) {
208 pdo_sqlite_error(dbh);
209 return -1;
210 } else {
211 return sqlite3_changes(H->db);
212 }
213 }
214
pdo_sqlite_last_insert_id(pdo_dbh_t * dbh,const zend_string * name)215 static zend_string *pdo_sqlite_last_insert_id(pdo_dbh_t *dbh, const zend_string *name)
216 {
217 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
218
219 return zend_i64_to_str(sqlite3_last_insert_rowid(H->db));
220 }
221
222 /* NB: doesn't handle binary strings... use prepared stmts for that */
sqlite_handle_quoter(pdo_dbh_t * dbh,const zend_string * unquoted,enum pdo_param_type paramtype)223 static zend_string* sqlite_handle_quoter(pdo_dbh_t *dbh, const zend_string *unquoted, enum pdo_param_type paramtype)
224 {
225 char *quoted;
226 if (ZSTR_LEN(unquoted) > (INT_MAX - 3) / 2) {
227 return NULL;
228 }
229 quoted = safe_emalloc(2, ZSTR_LEN(unquoted), 3);
230 /* TODO use %Q format? */
231 sqlite3_snprintf(2*ZSTR_LEN(unquoted) + 3, quoted, "'%q'", ZSTR_VAL(unquoted));
232 zend_string *quoted_str = zend_string_init(quoted, strlen(quoted), 0);
233 efree(quoted);
234 return quoted_str;
235 }
236
sqlite_handle_begin(pdo_dbh_t * dbh)237 static bool sqlite_handle_begin(pdo_dbh_t *dbh)
238 {
239 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
240
241 if (sqlite3_exec(H->db, "BEGIN", NULL, NULL, NULL) != SQLITE_OK) {
242 pdo_sqlite_error(dbh);
243 return false;
244 }
245 return true;
246 }
247
sqlite_handle_commit(pdo_dbh_t * dbh)248 static bool sqlite_handle_commit(pdo_dbh_t *dbh)
249 {
250 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
251
252 if (sqlite3_exec(H->db, "COMMIT", NULL, NULL, NULL) != SQLITE_OK) {
253 pdo_sqlite_error(dbh);
254 return false;
255 }
256 return true;
257 }
258
sqlite_handle_rollback(pdo_dbh_t * dbh)259 static bool sqlite_handle_rollback(pdo_dbh_t *dbh)
260 {
261 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
262
263 if (sqlite3_exec(H->db, "ROLLBACK", NULL, NULL, NULL) != SQLITE_OK) {
264 pdo_sqlite_error(dbh);
265 return false;
266 }
267 return true;
268 }
269
pdo_sqlite_get_attribute(pdo_dbh_t * dbh,zend_long attr,zval * return_value)270 static int pdo_sqlite_get_attribute(pdo_dbh_t *dbh, zend_long attr, zval *return_value)
271 {
272 switch (attr) {
273 case PDO_ATTR_CLIENT_VERSION:
274 case PDO_ATTR_SERVER_VERSION:
275 ZVAL_STRING(return_value, (char *)sqlite3_libversion());
276 break;
277
278 default:
279 return 0;
280 }
281
282 return 1;
283 }
284
pdo_sqlite_set_attr(pdo_dbh_t * dbh,zend_long attr,zval * val)285 static bool pdo_sqlite_set_attr(pdo_dbh_t *dbh, zend_long attr, zval *val)
286 {
287 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
288 zend_long lval;
289
290 switch (attr) {
291 case PDO_ATTR_TIMEOUT:
292 if (!pdo_get_long_param(&lval, val)) {
293 return false;
294 }
295 sqlite3_busy_timeout(H->db, lval * 1000);
296 return true;
297 case PDO_SQLITE_ATTR_EXTENDED_RESULT_CODES:
298 if (!pdo_get_long_param(&lval, val)) {
299 return false;
300 }
301 sqlite3_extended_result_codes(H->db, lval);
302 return true;
303 }
304 return false;
305 }
306
307 typedef struct {
308 zval val;
309 zend_long row;
310 } aggregate_context;
311
do_callback(struct pdo_sqlite_fci * fc,zval * cb,int argc,sqlite3_value ** argv,sqlite3_context * context,int is_agg)312 static int do_callback(struct pdo_sqlite_fci *fc, zval *cb, int argc, sqlite3_value **argv, sqlite3_context *context, int is_agg)
313 {
314 zval *zargs = NULL;
315 zval retval;
316 int i;
317 int ret;
318 int fake_argc;
319 aggregate_context *agg_context = NULL;
320
321 if (is_agg) {
322 is_agg = 2;
323 }
324
325 fake_argc = argc + is_agg;
326
327 fc->fci.size = sizeof(fc->fci);
328 ZVAL_COPY_VALUE(&fc->fci.function_name, cb);
329 fc->fci.object = NULL;
330 fc->fci.retval = &retval;
331 fc->fci.param_count = fake_argc;
332
333 /* build up the params */
334
335 if (fake_argc) {
336 zargs = safe_emalloc(fake_argc, sizeof(zval), 0);
337 }
338
339 if (is_agg) {
340 agg_context = sqlite3_aggregate_context(context, sizeof(aggregate_context));
341 if (!agg_context) {
342 efree(zargs);
343 return FAILURE;
344 }
345 if (Z_ISUNDEF(agg_context->val)) {
346 ZVAL_NEW_REF(&agg_context->val, &EG(uninitialized_zval));
347 }
348 ZVAL_COPY_VALUE(&zargs[0], &agg_context->val);
349 ZVAL_LONG(&zargs[1], ++agg_context->row);
350 }
351
352 for (i = 0; i < argc; i++) {
353 /* get the value */
354 switch (sqlite3_value_type(argv[i])) {
355 case SQLITE_INTEGER:
356 ZVAL_LONG(&zargs[i + is_agg], sqlite3_value_int(argv[i]));
357 break;
358
359 case SQLITE_FLOAT:
360 ZVAL_DOUBLE(&zargs[i + is_agg], sqlite3_value_double(argv[i]));
361 break;
362
363 case SQLITE_NULL:
364 ZVAL_NULL(&zargs[i + is_agg]);
365 break;
366
367 case SQLITE_BLOB:
368 case SQLITE3_TEXT:
369 default:
370 ZVAL_STRINGL(&zargs[i + is_agg], (char*)sqlite3_value_text(argv[i]), sqlite3_value_bytes(argv[i]));
371 break;
372 }
373 }
374
375 fc->fci.params = zargs;
376
377 if ((ret = zend_call_function(&fc->fci, &fc->fcc)) == FAILURE) {
378 php_error_docref(NULL, E_WARNING, "An error occurred while invoking the callback");
379 }
380
381 /* clean up the params */
382 if (zargs) {
383 for (i = is_agg; i < fake_argc; i++) {
384 zval_ptr_dtor(&zargs[i]);
385 }
386 if (is_agg) {
387 zval_ptr_dtor(&zargs[1]);
388 }
389 efree(zargs);
390 }
391
392 if (!is_agg || !argv) {
393 /* only set the sqlite return value if we are a scalar function,
394 * or if we are finalizing an aggregate */
395 if (!Z_ISUNDEF(retval)) {
396 switch (Z_TYPE(retval)) {
397 case IS_LONG:
398 sqlite3_result_int(context, Z_LVAL(retval));
399 break;
400
401 case IS_NULL:
402 sqlite3_result_null(context);
403 break;
404
405 case IS_DOUBLE:
406 sqlite3_result_double(context, Z_DVAL(retval));
407 break;
408
409 default:
410 if (!try_convert_to_string(&retval)) {
411 ret = FAILURE;
412 break;
413 }
414 sqlite3_result_text(context, Z_STRVAL(retval), Z_STRLEN(retval), SQLITE_TRANSIENT);
415 break;
416 }
417 } else {
418 sqlite3_result_error(context, "failed to invoke callback", 0);
419 }
420
421 if (agg_context) {
422 zval_ptr_dtor(&agg_context->val);
423 }
424 } else {
425 /* we're stepping in an aggregate; the return value goes into
426 * the context */
427 if (agg_context) {
428 if (Z_ISUNDEF(retval)) {
429 return FAILURE;
430 }
431 zval_ptr_dtor(Z_REFVAL(agg_context->val));
432 ZVAL_COPY_VALUE(Z_REFVAL(agg_context->val), &retval);
433 ZVAL_UNDEF(&retval);
434 }
435 }
436
437 if (!Z_ISUNDEF(retval)) {
438 zval_ptr_dtor(&retval);
439 }
440
441 return ret;
442 }
443
php_sqlite3_func_step_callback(sqlite3_context * context,int argc,sqlite3_value ** argv)444 static void php_sqlite3_func_step_callback(sqlite3_context *context, int argc, sqlite3_value **argv)
445 {
446 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
447
448 do_callback(&func->astep, &func->step, argc, argv, context, 1);
449 }
450
php_sqlite3_func_final_callback(sqlite3_context * context)451 static void php_sqlite3_func_final_callback(sqlite3_context *context)
452 {
453 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
454
455 do_callback(&func->afini, &func->fini, 0, NULL, context, 1);
456 }
457
php_sqlite3_collation_callback(void * context,int string1_len,const void * string1,int string2_len,const void * string2)458 static int php_sqlite3_collation_callback(void *context, int string1_len, const void *string1, int string2_len, const void *string2)
459 {
460 int ret;
461 zval zargs[2];
462 zval retval;
463 struct pdo_sqlite_collation *collation = (struct pdo_sqlite_collation*) context;
464
465 collation->fc.fci.size = sizeof(collation->fc.fci);
466 ZVAL_COPY_VALUE(&collation->fc.fci.function_name, &collation->callback);
467 collation->fc.fci.object = NULL;
468 collation->fc.fci.retval = &retval;
469
470 /* Prepare the arguments. */
471 ZVAL_STRINGL(&zargs[0], (char *) string1, string1_len);
472 ZVAL_STRINGL(&zargs[1], (char *) string2, string2_len);
473 collation->fc.fci.param_count = 2;
474 collation->fc.fci.params = zargs;
475
476 if ((ret = zend_call_function(&collation->fc.fci, &collation->fc.fcc)) == FAILURE) {
477 php_error_docref(NULL, E_WARNING, "An error occurred while invoking the callback");
478 } else if (!Z_ISUNDEF(retval)) {
479 if (Z_TYPE(retval) != IS_LONG) {
480 convert_to_long(&retval);
481 }
482 ret = 0;
483 if (Z_LVAL(retval) > 0) {
484 ret = 1;
485 } else if (Z_LVAL(retval) < 0) {
486 ret = -1;
487 }
488 zval_ptr_dtor(&retval);
489 }
490
491 zval_ptr_dtor(&zargs[0]);
492 zval_ptr_dtor(&zargs[1]);
493
494 return ret;
495 }
496
php_sqlite3_func_callback(sqlite3_context * context,int argc,sqlite3_value ** argv)497 static void php_sqlite3_func_callback(sqlite3_context *context, int argc, sqlite3_value **argv)
498 {
499 struct pdo_sqlite_func *func = (struct pdo_sqlite_func*)sqlite3_user_data(context);
500
501 do_callback(&func->afunc, &func->func, argc, argv, context, 0);
502 }
503
pdo_sqlite_create_function_internal(INTERNAL_FUNCTION_PARAMETERS)504 void pdo_sqlite_create_function_internal(INTERNAL_FUNCTION_PARAMETERS)
505 {
506 struct pdo_sqlite_func *func;
507 zend_fcall_info fci;
508 zend_fcall_info_cache fcc;
509 char *func_name;
510 size_t func_name_len;
511 zend_long argc = -1;
512 zend_long flags = 0;
513 pdo_dbh_t *dbh;
514 pdo_sqlite_db_handle *H;
515 int ret;
516
517 ZEND_PARSE_PARAMETERS_START(2, 4)
518 Z_PARAM_STRING(func_name, func_name_len)
519 Z_PARAM_FUNC(fci, fcc)
520 Z_PARAM_OPTIONAL
521 Z_PARAM_LONG(argc)
522 Z_PARAM_LONG(flags)
523 ZEND_PARSE_PARAMETERS_END();
524
525 dbh = Z_PDO_DBH_P(ZEND_THIS);
526 PDO_CONSTRUCT_CHECK;
527
528 H = (pdo_sqlite_db_handle *)dbh->driver_data;
529
530 func = (struct pdo_sqlite_func*)ecalloc(1, sizeof(*func));
531
532 ret = sqlite3_create_function(H->db, func_name, argc, flags | SQLITE_UTF8, func, php_sqlite3_func_callback, NULL, NULL);
533 if (ret == SQLITE_OK) {
534 func->funcname = estrdup(func_name);
535
536 ZVAL_COPY(&func->func, &fci.function_name);
537
538 func->argc = argc;
539
540 func->next = H->funcs;
541 H->funcs = func;
542
543 RETURN_TRUE;
544 }
545
546 efree(func);
547 RETURN_FALSE;
548 }
549
550 /* {{{ bool SQLite::sqliteCreateFunction(string name, callable callback [, int argcount, int flags])
551 Registers a UDF with the sqlite db handle */
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateFunction)552 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateFunction)
553 {
554 pdo_sqlite_create_function_internal(INTERNAL_FUNCTION_PARAM_PASSTHRU);
555 }
556 /* }}} */
557
pdo_sqlite_create_aggregate_internal(INTERNAL_FUNCTION_PARAMETERS)558 void pdo_sqlite_create_aggregate_internal(INTERNAL_FUNCTION_PARAMETERS)
559 {
560 struct pdo_sqlite_func *func;
561 zend_fcall_info step_fci, fini_fci;
562 zend_fcall_info_cache step_fcc, fini_fcc;
563 char *func_name;
564 size_t func_name_len;
565 zend_long argc = -1;
566 pdo_dbh_t *dbh;
567 pdo_sqlite_db_handle *H;
568 int ret;
569
570 ZEND_PARSE_PARAMETERS_START(3, 4)
571 Z_PARAM_STRING(func_name, func_name_len)
572 Z_PARAM_FUNC(step_fci, step_fcc)
573 Z_PARAM_FUNC(fini_fci, fini_fcc)
574 Z_PARAM_OPTIONAL
575 Z_PARAM_LONG(argc)
576 ZEND_PARSE_PARAMETERS_END();
577
578 dbh = Z_PDO_DBH_P(ZEND_THIS);
579 PDO_CONSTRUCT_CHECK;
580
581 H = (pdo_sqlite_db_handle *)dbh->driver_data;
582
583 func = (struct pdo_sqlite_func*)ecalloc(1, sizeof(*func));
584
585 ret = sqlite3_create_function(H->db, func_name, argc, SQLITE_UTF8, func, NULL,
586 php_sqlite3_func_step_callback, php_sqlite3_func_final_callback);
587 if (ret == SQLITE_OK) {
588 func->funcname = estrdup(func_name);
589
590 ZVAL_COPY(&func->step, &step_fci.function_name);
591
592 ZVAL_COPY(&func->fini, &fini_fci.function_name);
593
594 func->argc = argc;
595
596 func->next = H->funcs;
597 H->funcs = func;
598
599 RETURN_TRUE;
600 }
601
602 efree(func);
603 RETURN_FALSE;
604 }
605
606 /* {{{ bool SQLite::sqliteCreateAggregate(string name, callable step, callable fini [, int argcount])
607 Registers a UDF with the sqlite db handle */
608
609 /* The step function should have the prototype:
610 mixed step(mixed $context, int $rownumber, $value [, $value2 [, ...]])
611
612 $context will be null for the first row; on subsequent rows it will have
613 the value that was previously returned from the step function; you should
614 use this to maintain state for the aggregate.
615
616 The fini function should have the prototype:
617 mixed fini(mixed $context, int $rownumber)
618
619 $context will hold the return value from the very last call to the step function.
620 rownumber will hold the number of rows over which the aggregate was performed.
621 The return value of this function will be used as the return value for this
622 aggregate UDF.
623 */
624
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateAggregate)625 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateAggregate)
626 {
627 pdo_sqlite_create_aggregate_internal(INTERNAL_FUNCTION_PARAM_PASSTHRU);
628 }
629 /* }}} */
630
pdo_sqlite_create_collation_internal(INTERNAL_FUNCTION_PARAMETERS,pdo_sqlite_create_collation_callback callback)631 void pdo_sqlite_create_collation_internal(INTERNAL_FUNCTION_PARAMETERS, pdo_sqlite_create_collation_callback callback)
632 {
633 struct pdo_sqlite_collation *collation;
634 zend_fcall_info fci;
635 zend_fcall_info_cache fcc;
636 char *collation_name;
637 size_t collation_name_len;
638 pdo_dbh_t *dbh;
639 pdo_sqlite_db_handle *H;
640 int ret;
641
642 ZEND_PARSE_PARAMETERS_START(2, 2)
643 Z_PARAM_STRING(collation_name, collation_name_len)
644 Z_PARAM_FUNC(fci, fcc)
645 ZEND_PARSE_PARAMETERS_END();
646
647 dbh = Z_PDO_DBH_P(ZEND_THIS);
648 PDO_CONSTRUCT_CHECK;
649
650 H = (pdo_sqlite_db_handle *)dbh->driver_data;
651
652 collation = (struct pdo_sqlite_collation*)ecalloc(1, sizeof(*collation));
653
654 ret = sqlite3_create_collation(H->db, collation_name, SQLITE_UTF8, collation, callback);
655 if (ret == SQLITE_OK) {
656 collation->name = estrdup(collation_name);
657
658 ZVAL_COPY(&collation->callback, &fci.function_name);
659
660 collation->next = H->collations;
661 H->collations = collation;
662
663 RETURN_TRUE;
664 }
665
666 if (UNEXPECTED(EG(exception))) {
667 RETURN_THROWS();
668 }
669
670 efree(collation);
671 RETURN_FALSE;
672 }
673
674 /* {{{ bool SQLite::sqliteCreateCollation(string name, callable callback)
675 Registers a collation with the sqlite db handle */
PHP_METHOD(PDO_SQLite_Ext,sqliteCreateCollation)676 PHP_METHOD(PDO_SQLite_Ext, sqliteCreateCollation)
677 {
678 pdo_sqlite_create_collation_internal(INTERNAL_FUNCTION_PARAM_PASSTHRU, php_sqlite3_collation_callback);
679 }
680 /* }}} */
681
get_driver_methods(pdo_dbh_t * dbh,int kind)682 static const zend_function_entry *get_driver_methods(pdo_dbh_t *dbh, int kind)
683 {
684 switch (kind) {
685 case PDO_DBH_DRIVER_METHOD_KIND_DBH:
686 return class_PDO_SQLite_Ext_methods;
687
688 default:
689 return NULL;
690 }
691 }
692
pdo_sqlite_request_shutdown(pdo_dbh_t * dbh)693 static void pdo_sqlite_request_shutdown(pdo_dbh_t *dbh)
694 {
695 pdo_sqlite_db_handle *H = (pdo_sqlite_db_handle *)dbh->driver_data;
696 /* unregister functions, so that they don't linger for the next
697 * request */
698 if (H) {
699 pdo_sqlite_cleanup_callbacks(H);
700 }
701 }
702
pdo_sqlite_get_gc(pdo_dbh_t * dbh,zend_get_gc_buffer * gc_buffer)703 static void pdo_sqlite_get_gc(pdo_dbh_t *dbh, zend_get_gc_buffer *gc_buffer)
704 {
705 pdo_sqlite_db_handle *H = dbh->driver_data;
706
707 struct pdo_sqlite_func *func = H->funcs;
708 while (func) {
709 zend_get_gc_buffer_add_zval(gc_buffer, &func->func);
710 zend_get_gc_buffer_add_zval(gc_buffer, &func->step);
711 zend_get_gc_buffer_add_zval(gc_buffer, &func->fini);
712 func = func->next;
713 }
714
715 struct pdo_sqlite_collation *collation = H->collations;
716 while (collation) {
717 zend_get_gc_buffer_add_zval(gc_buffer, &collation->callback);
718 collation = collation->next;
719 }
720 }
721
722 static const struct pdo_dbh_methods sqlite_methods = {
723 sqlite_handle_closer,
724 sqlite_handle_preparer,
725 sqlite_handle_doer,
726 sqlite_handle_quoter,
727 sqlite_handle_begin,
728 sqlite_handle_commit,
729 sqlite_handle_rollback,
730 pdo_sqlite_set_attr,
731 pdo_sqlite_last_insert_id,
732 pdo_sqlite_fetch_error_func,
733 pdo_sqlite_get_attribute,
734 NULL, /* check_liveness: not needed */
735 get_driver_methods,
736 pdo_sqlite_request_shutdown,
737 NULL, /* in transaction, use PDO's internal tracking mechanism */
738 pdo_sqlite_get_gc
739 };
740
make_filename_safe(const char * filename)741 static char *make_filename_safe(const char *filename)
742 {
743 if (!filename) {
744 return NULL;
745 }
746 if (*filename && strncasecmp(filename, "file:", 5) == 0) {
747 if (PG(open_basedir) && *PG(open_basedir)) {
748 return NULL;
749 }
750 return estrdup(filename);
751 }
752 if (*filename && strcmp(filename, ":memory:")) {
753 char *fullpath = expand_filepath(filename, NULL);
754
755 if (!fullpath) {
756 return NULL;
757 }
758
759 if (php_check_open_basedir(fullpath)) {
760 efree(fullpath);
761 return NULL;
762 }
763 return fullpath;
764 }
765 return estrdup(filename);
766 }
767
authorizer(void * autharg,int access_type,const char * arg3,const char * arg4,const char * arg5,const char * arg6)768 static int authorizer(void *autharg, int access_type, const char *arg3, const char *arg4,
769 const char *arg5, const char *arg6)
770 {
771 char *filename;
772 switch (access_type) {
773 case SQLITE_ATTACH: {
774 filename = make_filename_safe(arg3);
775 if (!filename) {
776 return SQLITE_DENY;
777 }
778 efree(filename);
779 return SQLITE_OK;
780 }
781
782 default:
783 /* access allowed */
784 return SQLITE_OK;
785 }
786 }
787
pdo_sqlite_handle_factory(pdo_dbh_t * dbh,zval * driver_options)788 static int pdo_sqlite_handle_factory(pdo_dbh_t *dbh, zval *driver_options) /* {{{ */
789 {
790 pdo_sqlite_db_handle *H;
791 int i, ret = 0;
792 zend_long timeout = 60, flags;
793 char *filename;
794
795 H = pecalloc(1, sizeof(pdo_sqlite_db_handle), dbh->is_persistent);
796
797 H->einfo.errcode = 0;
798 H->einfo.errmsg = NULL;
799 dbh->driver_data = H;
800
801 /* skip all but this one param event */
802 dbh->skip_param_evt = 0x7F ^ (1 << PDO_PARAM_EVT_EXEC_PRE);
803
804 filename = make_filename_safe(dbh->data_source);
805
806 if (!filename) {
807 zend_throw_exception_ex(php_pdo_get_exception(), 0,
808 "open_basedir prohibits opening %s",
809 dbh->data_source);
810 goto cleanup;
811 }
812
813 flags = pdo_attr_lval(driver_options, PDO_SQLITE_ATTR_OPEN_FLAGS, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE);
814
815 if (!(PG(open_basedir) && *PG(open_basedir))) {
816 flags |= SQLITE_OPEN_URI;
817 }
818 i = sqlite3_open_v2(filename, &H->db, flags, NULL);
819
820 efree(filename);
821
822 if (i != SQLITE_OK) {
823 pdo_sqlite_error(dbh);
824 goto cleanup;
825 }
826
827 if (PG(open_basedir) && *PG(open_basedir)) {
828 sqlite3_set_authorizer(H->db, authorizer, NULL);
829 }
830
831 if (driver_options) {
832 timeout = pdo_attr_lval(driver_options, PDO_ATTR_TIMEOUT, timeout);
833 }
834 sqlite3_busy_timeout(H->db, timeout * 1000);
835
836 dbh->alloc_own_columns = 1;
837 dbh->max_escaped_char_length = 2;
838
839 ret = 1;
840
841 cleanup:
842 dbh->methods = &sqlite_methods;
843
844 return ret;
845 }
846 /* }}} */
847
848 const pdo_driver_t pdo_sqlite_driver = {
849 PDO_DRIVER_HEADER(sqlite),
850 pdo_sqlite_handle_factory
851 };
852
